WBbt:0004017 vs clear
Refuting evidence (6)
These phenotypes were not caused by inhibition of RNAPII, as in gpn1ΔC cells RNAPII nuclear targeting and transcriptional activity were unaffected.
However, the lack of effective solutions to inhibit biofilm formation remains a challenge, and the mechanism of inhibition of biofilm formation targeting extracellular polymeric substances is unclear.
Transfection with constitutively active MEK and dominant-negative MEK had no effect on the cell death. 15d-PGJ2 inhibited the NF-kappaB transcriptional activity, which was accompanied by an inhibition of nuclear translocation of the NF-kappaB subunit p65 and impairment in DNA binding.
In the absence of the eukaryotic type II chaperonin complex, CCT, T cell activation induced changes in the proteome are compromised including the formation of nuclear actin filaments and the formation of a normal cell stress response.
It was found that rEg.P29 immunization did not affect the percentage of CD4+ and CD8+ T cells in peripheral blood mononuclear cells (PBMCs), and was able to stimulate the proliferation of CD4+ and CD8+ T cells after immunization in vitro.
This reduction is not caused by impaired or delayed cell death but rather by a partial restoration of the cell clearance capacity.
Supporting evidence (173)
HAL-2 concentrates in the germ cell nucleoplasm and colocalizes with SYP proteins in nuclear aggregates when SC assembly is prevented.
The lysosomal-autophagic pathway is activated by starvation and plays an important role in both cellular clearance and lipid catabolism.
PHB2 is required for Parkin-induced mitophagy in mammalian cells and for the clearance of paternal mitochondria after embryonic fertilization in C. elegans.
Our experiments confirm that plumbagin induces a caspase-dependent apoptosis of MOLT-4 cells, with no significant cytotoxicity seen for normal peripheral blood mononuclear cells (PBMCs).
The posteriormost intestinal cells function as the pacemaker for this rhythmic behavior, although it is unclear how the supremacy of these cells for calcium-wave initiation is controlled.
This integration of external information occurs through cellular sensory elements, such as nuclear receptors, which modulate gene expression in response to specific cues [2].
However, the molecular mechanisms regulating cancer cell death and the resistance of cells to artesunate remain unclear.
Programmed cell clearance is a highly regulated physiological process of elimination of dying cells that occurs rapidly and efficiently in healthy organisms.
AVM can exert immunotoxicity by inducing genomic demethylation, but its effect on neutrophil extracellular traps (NETs) release in carp is unclear.
Cell cycle distribution and nuclear morphometric analysis indicated that the triple combination of TMZ, VBL and MBZ (TVM) was able to induce polyploidy and senescence, in addition to increasing the Notch3 RNA level in patient-derived gliomas.
The amino acid residues modulating HDAC1 subcellular localization were identified by site-directed mutagenesis, which identified serine residues 421 and 423 as critical for its nuclear localization.
Its cells contain rich microtubules required for nuclear division and rich F-actin cytoskeletons for cell division.
Primary mouse osteoclasts precursor cells were induced by M-CSF (macrophage colony stimulating factor) plus RANKL (receptor activator of nuclear factor kappa-B ligand) in vitro.
Here through screening more than 1000 drugs approved by the Food and Drug Administration (FDA) of United States, the anthelmintic drug mebendazole (MBZ) was found to inhibit the growth of AML cell lines (THP-1, U937, NB4 and K562) and bone marrow mononuclear cells (BM-MNCs) from AML patients at pharmacologically achievable concentrations.
The proteomic data indicated that PLB inhibited cell proliferation, activated death receptor-mediated apoptotic pathway, remodeled epithelial adherens junctions pathway, and manipulated nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated oxidative stress response signaling pathway in SCC25 cells with the involvement of a number of key functional proteins.
Treatment of A549/TAX cells with artesunate (2.5-50 μM) dose-dependently inhibited lysosomal function and the clearance of dysfunctional mitochondria, and induced cell apoptosis.
Domperidone, a dopamine receptor antagonist, as well as several tricyclic antidepressants (TCAs), including imipramine, induced cancer cell death in combination with the mitochondrial uncoupler niclosamide ethanolamine (NEN) through activation of the integrated stress response pathway and the catabolic CLEAR network.
Artesunate inhibited cell growth and viability of PEL cells, but its effect on peripheral blood mononuclear cells was less pronounced.
Inducing autophagy, a conserved, intracellular degradative pathway, is a potential treatment strategy to prevent disease by clearing these deposits.
In addition, ivermectin inhibited the expression of intracellular nuclear factor-κB (NF-κB) and hypoxia‑inducible factor‑1α (HIF-1α) proteins along with lowering the oxidative stress and apoptotic markers.
Furthermore, ART inhibits the migration and cell cycle, as well as tumor necrosis factor-alpha (TNF-α)-induced IL-23 expression in HaCaT cells in a dose-dependent manner, probably through interference with the nuclear factor kappa B (NF-κB) signalling pathway.
In nuclei of stimulated cells, MVI colocalized with active RNA polymerase II, BrUTP-containing transcription sites and transcription factor SP1 as well as SC35 and PML proteins, markers of nuclear speckles and PML bodies, respectively.
Gene silencing of importin-α1, a cellular target of ivermectin and a key member of the host nuclear transport complex, inhibited viral replication and largely abolished the anti-HEV effect of ivermectin.
Among other pleiotropic effects on virus-infected host cells, ivermectin (IVM) inhibits nuclear transport mechanisms mediated by importins and atorvastatin (ATV) affects actin cytoskeleton-dependent trafficking controlled by Rho GTPases signaling.
Intriguingly, dysfunction of CqImportin α1/β1 resulted in significant accumulation of incoming nucleocapsids on the periphery of the Hpt cell nucleus, leading to substantially decreased introduction of the viral genome into the nucleus and remarkably reduced nuclear import of expressed viral structural proteins with NLS; both of these effects were accompanied by significantly inhibited viral propagation.
Treatment with the combination resulted in a regulated interplay of immune cells and cytokines aiding in parasite clearance in addition to its specific inhibitory activity.
In addition, MBZ induced mitotic arrest and mitotic catastrophe in AML cells based on nuclear morphology, cell cycle distribution, mitotic marker analyses and the number of multinucleated cells and apoptotic cells.
However, the cellular and molecular mechanisms by which ivermectin inhibits cancer growth remain unclear.
While enzalutamide became an AR agonist in cells harboring the mutated AR (F876L), inhibition of nuclear import inhibited enzalutamide-induced nuclear localization and transactivation of the mutated AR and reduced the viability of AR-F876L-expressing cells.
At 11 degrees C, cin mutants arrest at the mitosis stage of their cell cycle because of loss of most microtubule structure. cin1, cin2, and cin4 mutations also cause defects in two other microtubule-mediated processes, nuclear migration and nuclear fusion (karyogamy).
Methyl-benzimidazole-2-ylcarbamate (MBC) inhibits the mitotic cell cycle of Saccharomyces cerevisiae at a stage subsequent to DNA synthesis and before the completion of nuclear division (Quinlan, R.
Using the rat model and schistosomula as target, some ADCC features have emerged: the cellular population involved are bone marrow derived inflammatory cell (mononuclear phagocytes, eosinophils and platelets), interacting with IgE through IgE Fc receptors.
Although H3K4me3 is linked to gene expression, whether H3K4 methylation regulates other cellular processes, such as mitosis, is less clear.
We found that the combined treatment with PL and ZA suppressed cell viability of precursor osteoclasts and synergistically inhibited MDA-MB-231-induced osteoclast formation (combination index=0.28) with the abrogation of recombinant mouse receptor activator of nuclear factor-κB ligand (RANKL)-induced activation of NF-κB/MAPK (nuclear factor-κB/mitogen-activated protein kinase) pathways.
In addition, the effects of the drugs on in-vitro cellular response was assessed by measuring blastogenesis of mononuclear cells obtained from patients suffering from periodontal disease and age/sex matched controls following incubation with the periodontopathogen Actinobacillus actinomycetemcomitans (AaY4).
Statin is a cell cycle regulated nuclear phosphoprotein, selectively associated with the non-proliferative state in a wide variety of cell types.
High-level TN-AP expression caused a fivefold reduction of cell proliferation and was associated with the development of cells with sub-G1 DNA content, nuclear condensation, and nuclear budding.
Signal transduction pathways evoked by interleukin-1 (IL-1) and tumor necrosis factor-alpha (TNF-alpha) to stimulate expression of other cytokines in mesenchymal cells are not clearly understood.
Fluorescence microscopy studies using NIH3T3 cells indicate that H1 is capable of traversing the cytoplasmic membrane and selectively localizing to nuclear DNA.
Albendazole induced elimination/or reduction in intestinal worms resulting in a significant improvement in T cell proliferation and in interferon-gamma production by peripheral blood mononuclear cells (PBMC) stimulated with PPD.
While it is recognized that activated dendritic cells perform their immune functions with greater efficacy, it is not altogether clear what factors are responsible for such activation.
Observations on cellular immune responses were made on stimulated peripheral blood mononuclear cells (PBMC), which were collected pre-treatment, then at 12 and 18 months post treatment.
There is accumulating evidence that reactive oxygen species (ROS) is involved in the pathophysiology of RCN, whereas the correlation between oxidative stress and contrast media-induced cell apoptosis is not clear.
However, the genetic characteristics and molecular mechanisms that can modulate the extent of cell death are unclear.
Exposure of cells (5 days in vitro; DIV) to glutamate 0.5 mM for 24 hr caused massive nuclear alteration.
To analyze the mechanisms of entry of human herpesvirus 8 (HHV-8), we established a reporter cell line T1H6 that contains the lacZ gene under the control of the polyadenylated nuclear RNA promoter, known to be strongly activated by a viral transactivator, Rta.
Nevertheless, whether oltipraz modulates TGFbeta1-mediated cell signaling is unclear.
Treatment of cells with calpain specific inhibitor MDL 28170 completely blocked the oltipraz-induced nuclear translocation of AhR and subsequent CYP1A1 expression.
Estrogen exerts genomic effects in the target cells by binding to the nuclear receptors, estrogen receptor (ERs), ERalpha and ERbeta.
Recent studies have exploited this potential by generating human induced pluripotent stem cells from HGPS patients' fibroblasts displaying several phenotypic defects characteristic of HGPS such as nuclear abnormalities, progerin expression, altered DNA-repair mechanisms and premature senescence.
Although AKT activation leads to the activation of various pathways related to cell survival, the roles of AKT in modulating cellular responses induced by ionizing radiation in normal human cells remain unclear.
In western blot analysis, ZD1839 single agent inhibited the activation of EGFR and downstream cell signal transduction AKT and extrocellular signal-regulated kinase (ERK) pathways, the transcription activity of nuclear factor-kappa B (NF-kappaB), and the expression of COX-2.
PL, at concentrations as low as 5 micromol/L, inhibited in both cultured PCa cells and DU145 xenografts (a) the expression of protein kinase Cepsilon (PKCepsilon), phosphatidylinositol 3-kinase, phosphorylated AKT, phosphorylated Janus-activated kinase-2, and phosphorylated signal transducer and activator of transcription 3 (Stat3); (b) the DNA-binding activity of transcription factors activator protein-1, nuclear factor-kappaB, and Stat3; and (c) Bcl-xL, cdc25A, and cyclooxygenase-2 expression.
ART effectively suppressed LPS-induced inflammation in BV2 cells (a murine microglial cell line) by modulating microglial polarization and downregulating the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and Notch1 signaling pathways.
Ang II induced remarkable senescent phenotypes in rodent and human VSMCs, including increased senescence-associated β-galactosidase activity, phosphorylation of H2A.X(Ser139), phosphorylation of Chk1(Ser317), reduced replication, and downregulation of proliferating cell nuclear antigen.
Superoxide dismutase 2 (SOD2)-mediated gene therapy has significant protective effects against kanamycin-induced hearing loss and hair cell loss in the inner ear, but the underlying mechanisms are still unclear.
Numerous studies using cellular and animal models clearly indicate that pharmacologic or genetic normalization of p300 activity has the potential to prevent or halt the progression of cardiac aging pathologies.
A wide array of cellular pathways is induced in response to CR and CR-mimetics, including the transcriptional activator Nuclear factor erythroid-2-related factor 2 (Nrf2), which is essential in the upregulation of multiple stress-responsive and mitochondrial enzymes.
In vitro, hepatocellular Birc5 overexpression promoted immunosuppressive CD11b+ CD33+ HLA-DR- MDSC expansion from human peripheral blood mononuclear cells.
Further, KDM2B played a role in LPS-induced HK-2 cell injury by activating nuclear factor κB (NF-κB) and activator protein 1 (AP-1) pathways.
Cellular senescence is a cell fate originally defined as an irreversible loss of replicative potential although it is now clear that it can be induced by a variety of mechanisms independent of replication and telomere attrition.
Transcription Factor 12(TCF12), is known to regulate cell development and differentiation, It has been widely studied in various organs and diseases, but its role in OA remains unclear.
We further demonstrate that a senolytic FOXO4-D-retro-inverso-isoform peptide (FOXO4-DRI) promotes apoptosis and decreases G0/G1 phase cells in pro-senescence models of keloid organ cultures and fibroblasts, accompanied with p53-pS15 nuclear exclusion.
This study investigates the role and mechanism of neutrophil extracellular trap (NET) clearance by aged macrophages during sepsis-induced liver injury, as elderly patients show higher rates of organ damage and mortality in sepsis.
Renal Cell Carcinoma (RCC) is a leading cause of cancer-related mortality worldwide, with Clear Cell Renal Cell Carcinoma (ccRCC) comprising 75% of cases.
Nrf2 interacts with other important cell regulators such as tumor suppressor protein 53 (p53) and nuclear factor-kappa beta (NF-κB) and through their combined interactions is the guardian of healthspan, protecting against many age-related diseases including cancer and neurodegeneration.
At the cellular level, BPs inhibit osteoclasts, but the precise molecular mechanisms are unclear.
Further, in HTLV-1-infected T cell lines, inhibitors suppressed NF-κB and AP-1 nuclear transport and DNA binding, induced apoptosis and poly (ADP-ribose) polymerase cleavage, and activated caspase-3, caspase-8 and caspase-9.
Augmented proliferation and activation of CISH-deficient ILC2s increases basal and inflammation-induced numbers of intestinal tuft cells and accelerates clearance of the model helminth, Nippostrongylus brasiliensis, but compromises innate control of Salmonella typhimurium.
Helminths have been previously shown to suppress effector cell function; however, their ability to treat pre-existing allergy remains unclear.
We further showed that CD4+ T cells isolated from acute L. sigmodontis-infected C57BL/6 donor mice or mice that already cleared the infection were able to eliminate the parasite and prevent inflammation at the site of infection.
Cytotoxic T lymphocyte antigen-4 (CTLA-4) regulates T cell activation and shows negative effects on vaccine-induced immune protection; however, its potential influence on the protective effects of a GAPDH vaccine against S. japonicum and the underlying mechanism remain unclear.
IL-33, a cytokine upregulated in inflammatory bowel disease and helminth infection, induces intestinal goblet cells, but the mechanism remains unclear.
Intracellular IFN-γ production of T cells in stimulated peripheral blood mononuclear cells (PBMCs) was analyzed by flow cytometry using TB antigens (PPD), the polyclonal T cell activator staphylococcal enterotoxin B (SEB), or medium as unstimulated control.
Prevention of T cell exhaustion by blockade of PD-1 results in clinical benefits to cancer patients and clearance of viral infections, however it remains largely unknown whether loss of PD-1 could prevent or cure schistosomiasis in susceptible mice.
Type 2 innate lymphoid cells (ILC2s) are a major cellular source of IL-13 but it remains unclear whether IL-13 secretion from ILC2s is required for Nb expulsion.
The excretory-secretory (ES) products of E. granulosus can induce immune tolerance in dendritic cells (DCs) to downregulate the host's immune response; however, the effect of exosomes in the ES products on the DCs has remained unclear.
Dual-luciferase reporter gene assays showed that SiMyD88 overexpression in HEK293T cells significantly activated the transcriptional activities of activator protein-1, interleukin-6, and nuclear factor-kappa B (NF-κB) reporter genes, indicating its potential involvement in multiple signaling pathways.
In this study, ferroptosis were detected in C. sinensis-infected C57BL/6 mice as well as in AML12 cells stimulated by C. sinensis excretory/secretory products (ESPs). 12 ferroptosis related genes were screened and we found glutathione peroxidase 4 (GPX4, 7 d), solute carrier family 7 member 11 (SLC7A11, 7 d) and nuclear factor erythroid 2 related factor 2 (Nrf2, 35 d) was significantly decreased in mice.
Type 2 inflammation, mediated by T-helper 2 (Th2) cells, promotes wound healing and clears large pathogens such as helminths.
Using in vitro T cell stimulation assays we provide further evidence that srHSP60 skewed activated T cells towards a Th1 response that interfered with efficient clearance of S. ratti infection.
Naive T cells co-cultured with calcitriol-primed naive B cells showed a reduced expansion, nuclear factor of activated T cells, cytoplasmic 2 (NFATc2) expression and cytokine production upon restimulation.
Although ferritin also promoted DC maturation and cytokine release, it also activates CD4+T-cell proliferation, but regard of the mechanism of the Eg.ferritin induce host to eradicate E. granulosus were not clear.
However, the mechanisms by which these proteins suppress the inflammatory responses in lung cells remain unclear.
Injection of purified TcaB caused loss of viability of fourth instar G. mellonella hemocytes at 6 h post incubation; cells displayed morphological changes typical of apoptosis, including cell shrinkage, membrane blebbing, nuclear condensation and disintegration.
In vitro, macrophages and hepatic stellate cells (HSCs, LX-2 line) were stimulated with Echinococcus granulosus cyst fluid (EgCF) or TGF-β1 to evaluate GA's effects on macrophage polarization (CD206/CD86), HSC activation (α-SMA/PCNA), Smad4 SUMOylation, and nuclear translocation.
This dynamic interaction of cell differentiation and response to a micro-environment, and the resulting heterogeneity among mononuclear phagocytes for many functional characteristics, is clearly illustrated by the effector activities of activated macrophages that we describe in this report.
The amount of these cytokines produced by mitogen-stimulated milk cells from T. spiralis-infected rats was similar to that produced by non-infected controls, although lower than that of corresponding blood mononuclear cells.
Our data from infections of IL-4 receptor(-/-) and Stat6(-/-) mice further indicate that IL-4 exerts its effects by activating the Stat6 molecule in host target cells, a finding which links clearance requirements of a gastrointestinal tract-dwelling nematode with those of a tissue-dwelling nematode.
However, the molecular mechanisms by which ML-ESPs modulate nurse cell formation remain unclear.
To understand the intricate balance and the coordinate expression of the Th1 and Th2 cytokines following a natural mode of T cell triggering, antigen-stimulated IL-4, IL-13 and IFN-gamma production was studied in primary peripheral blood mononuclear cell cultures at a single-cell level.
This is the first report demonstrating that excretory/secretory products from parasites suppress tumour necrosis factor-alpha mRNA expression by reducing phosphorylation of extracellular signal-regulated protein kinase 1/2 and p38 mitogen-activated protein kinase without any effect on nuclear factor-kappa B activity in macrophages stimulated with lipopolysaccharide.
Similarly, inhibitors of the extracellular signal-regulated kinase, p38 and nuclear factor kappa B also blocked only the NO productivity of ESP.
NMU controls ILC2s downstream of extracellular signal-regulated kinase and calcium-influx-dependent activation of both calcineurin and nuclear factor of activated T cells (NFAT).
Under the applied experimental conditions in a cell proliferation test, O. ochengi galectin failed to significantly stimulate peripheral blood mononuclear cells (PBMCs) from O. ochengi-infected cattle, regardless of their parasite load.
First, changes in cell morphology clearly showed that both OoESP-L4 and OoESP-Ad activated PBMC-Mϕ in vitro, resulting in suppressed CD40 and increased CD80 expression.
ILC2 activation requires tuft-cell-derived interleukin-25 (IL-25), but whether additional signals regulate the circuit is unclear.
Mixed immune cell assays revealed an ability of neutrophils to induce IL-4 production in peripheral blood mononuclear cell (PBMC).
CysLTs cooperate with IL-25 to activate ILC2s, and tuft-cell-specific ablation of leukotriene synthesis attenuates type 2 immunity and delays helminth clearance.
Helminths induce mucosal T cell IL-10 secretion and regulate lamina propria mononuclear cell (LPMC) Th1 cytokine generation in an IL-10-dependent manner in WT mice.
Recombinant Wolbachia HSP60 decreases T cell activation and lymphoproliferation in filarial infected people compared to endemic controls as observed by the assessment of T cell activation markers and cytokine responses in the peripheral blood mononuclear cells.
Bronchoalveolar lavage cells obtained 6 h after antigen challenge were analyzed for nuclear factor-kappaB (NF-kappaB) activity in the respective groups. pGz treatment for 1 h before antigen challenge reduced the early airway response and blocked the late airway response but did not prevent the antigen-induced airway hyperresponsiveness 24 h after challenge.
A full-length cDNA from the parasitic nematode Brugia pahangi encoding a secreted homolog of glutathione peroxidase in which the codon for the active site selenocysteine is substituted naturally by a cysteine codon has been expressed in Spodoptera frugiperda (insect) cells via Autographa californica nuclear polyhedrosis virus (baculovirus).
The annelid Eisenia foetida not only causes hemolysis of red blood cells of several vertebrate species, but also has a toxic effect on a variety of cell types, such as chicken fibroblasts, guinea-pig polymorphonuclear leukocytes and insect hemocytes.
The expression and constitutive extracellular secretion of the mucosa-specific chymase, mouse mast cell proteinase-1 (mMCP-1), is regulated by transforming growth factor-beta1 (TGF-beta1) in vitro, but it is not clear how the differential expression of chymases and tryptases is regulated in other species.
In cultured mouse inner ear cell lines, Sirt1 knockdown increased cell viability under oxidative stress conditions, induced nuclear translocation of Foxo3a, and increased acetylation status of Foxo3a.
Transfer of wild-type PRCs into CBA/N mice before injection of mf also causes similar changes in the anti-mf T cell responses and enhances the clearance of mf.
Recombinant SmPOH expressed in COS7 cells exhibited a punctate pattern of distribution throughout the cytoplasm and nucleus, predominantly in the nuclear periphery, a distribution consistent with that of the cellular proteasome.
Recombinant SmPOH expressed in COS7 cells exhibited a punctate pattern of distribution throughout the cytoplasm and nucleus, predominantly in the nuclear periphery, a distribution consistent with that of the cellular proteasome.
The aim of this study was to investigate the association between extracellular signal-regulated kinase (Erk)1/2-nuclear factor (NF)-κB pathway and myelin basic protein (MBP) expression in RSC96 Schwann cells treated with A. cantonensis-conditioned culture medium, which was prepared by culturing the third-stage (L3) nematode larvae in DMEM for 72 h.
We found that highly purified, endotoxin-free ES-62 directly inhibits the FcepsilonRI-induced release of allergy mediators from human mast cells by selectively blocking key signal transduction events, including phospholipase D-coupled, sphingosine kinase-mediated calcium mobilization and nuclear factor-kappaB activation.
Herein, we examined the subcellular localization and protein expression of nuclear factor erythroid-2-related factor 2 (Nrf2), a central transcription factor responsible for modulating cellular antioxidant responses, that was found to be upregulated and localized to the nucleus in anoxic turtles.
Additionally, flow cytometry of CD4+/γδ+ T cells and immune gene expression were performed by proliferation assays using each E/S product to stimulate lymphocyte and peripheral blood mononuclear cells (PBMCs) from non-infected calves.
ABF activated Th2-associated extracellular signal-regulated kinase-1 and nuclear factor-kB intracellular signalling pathways independently of toll-like receptor 4.
The growth in xylary cells was clearly promoted when treated with BL.
Significantly upregulated genes related to cell proliferation, activation and development, as well as cytotoxicity, were observed on day 1, and genes regulating T cell maturation, granulocyte function, nuclear factor-κB and toll-like receptor pathways were predominantly observed on day 3 after culture.
Here, we report that merbarone induces programmed cell death or apoptosis in human leukemic CEM cells, characterized by internucleosomal DNA cleavage and nuclear condensation.
To investigate the poorly understood mechanisms of G. spinigerum L3 pathogenesis, we focused on the potential effect of ES on inducing apoptosis in human immune cells by using human peripheral blood mononuclear cells (PBMCs) as a model.
The introduction of the antisense ZEN1 gene into Zinnia cells cultured for 40 h specifically suppressed the degradation of nuclear DNA in TEs undergoing PCD but did not affect vacuole collapse.
The costimulatory signal through CD28 is required for T cell activation resulting in increased interleukin (IL)-2 production in vitro, but its role in the production of IL-4 and in the in vivo response is still unclear.
Such cell extracts possessed the ability to degrade the nuclear DNA isolated from Zinnia elegans cells in the presence of Zn(2+), and its activity was suppressed by an anti-ZEN1 antibody, indicating that ZEN1 is a central DNase responsible for nuclear DNA degradation.
The in vitro cellular reactivity to Onchocerca volvulus-derived antigen (OvAg) was reduced in untreated patients as compared with controls, and the lymphocyte blastogenic responses to OvAg and streptolysin-O clearly improved up to 14 months after treatment.
The results indicated that ML-ESP promoted myoblast proliferation in a dose-dependent manner and increased the expression of the cell-cycle regulator cyclin D1 as well as that of proliferating cell nuclear antigen (PCNA).
Although the intracellular pathogens induced responses clearly distinct from the extracellular B malayi, they each displayed a unique pattern of gene expression that would not necessarily be predicted on the basis of their phylogenetic relationship.
However, the specific role of STAT6-regulated genes like Arginase-1 (Arg1) from AAMs or STAT6-regulated genes in other cell types for host protection remains unclear.
Ultrastructurally, we originally observed that A. fumigatus-stimulated eosinophils present typical signs of extracellular DNA trap cell death (ETosis) with the nuclei losing both their shape (delobulation) and the euchromatin/heterochromatin distinction, followed by rupture of the nuclear envelope and EETs release.
However, the molecular mechanisms by which ESP modulate nurse cell formation remain unclear.
The cells have a high nuclear/cytoplasmic ratio and up to 2-3 mitoses/high-power field; some become grossly enlarged, highly polymorphic and contain large, irregular blocks of chromatin.
In live cells, perinuclear neurobeachin is dispersed by brefeldin A (BFA) within 1 min, and in permeabilized cells a recruitment of neurobeachin from cytosol to Golgi-near membranes is stimulated by GTPgammaS and prevented by brefeldin A.
MECHANISM OF APOPTOSIS: It has been reported that apoptosis is induced in various cells by many kinds of irritations, but the precise mechanism is still unclear.
The ING family functions in DNA repair and apoptosis in response to UV damage through binding to proliferating cell nuclear antigen (PCNA); chromatin remodeling and regulation of gene expression through regulating and/or targeting histone acetyltransferase/deacetylase (HAT/HDAC) activities; binding targets of rare phosphatidylinositol phosphates (PtdInsPs) that function in DNA damage-initiated stress signaling; and regulating brain tumor angiogenesis through transcriptional repression of NF-KB-responsive genes.
Basophils are innate immune cells that support host-protective type 2 inflammation during murine infection with the helminth Trichuris muris However, the mechanisms required for basophil function and gene expression regulation in this context remain unclear.
Together these observations show that limited T cell subpopulations are clonally amplified in BmA-stimulated peripheral blood mononuclear cells of filarial responder subjects, possibly driven by a restricted number of antigens.
Treg cell conversion into IL-4-producing cells was due to augmented mitogen-activated protein kinase and nuclear factor κB signaling.
This inhibitory form of β-catenin, expressed in specific cell types, would provide a novel mechanism to modulate nuclear β-catenin signaling levels.
EITC caused ROS-dependent cellular death and nuclear or DNA fragmentation.
By subcellular localization analysis, PmLBD is a nuclear protein, and two of the genes, PmLBD44 and PmLBD45, were selected for functional characterization; secondly, yeast self-activation analysis showed that PmLBD44, PmLBD45, PmLBD46 and PmLBD47 had no self-activating activity.
CD4+ helper T cells can both coordinate worm clearance and prevent immunopathology, but issues of T cell antigen specificity in the context of helminth-induced Th2 and T regulatory cell (Treg) responses have not been addressed.
Evidence indicates that helminths induce tolerogenic dendritic cells (tolDCs), which promote intestinal tolerance and attenuate intestinal inflammation characteristic of IBD, but the exact mechanism is unclear.
Additionally, cell proliferation analysis showed that HcTTR blocked the IL4-induced proliferation of peripheral blood mononuclear cells in goats, while HcGST and HcCab did not.
This inhibition correlated with ES-62-induced mast cell desensitisation, although the degree to which this reflected direct targeting of mast cells remained unclear as suppression of the Th2 phenotype of the inflammatory response, as measured by eosinophilia and IL-4 levels in the lungs, was also observed.
The costimulatory signal provided to T cells through CTLA-4-ligand interactions is required for T cell activation resulting in increased interleukin 2 (IL-2) production in vitro, but its role in the production of IL-4 and other cytokines is unclear and few in vivo studies have been performed to confirm results of in vitro experiments.
Expression of kugelkern or lamin B in mammalian cells induces a nuclear lobulation phenotype in conjunction with DNA damage, and changes in histone modification similar to that found in cells expressing laminDelta50 or in cells from aged individuals.
However, nematode-induced galls resulting from cell-proliferation and hypertrophy hinders such observation, which would require tissue sectioning or clearing.
Inhibition of p53 led to autophagy in enucleated cells, and cytoplasmic, not nuclear, p53 was able to repress the enhanced autophagy of p53(-/-) cells.
However, the underlying mechanisms that regulate the cellular integrity in vulval muscles remain unclear.
Cell Biol.https://doi.org/10.1083/jcb.201909137) found that membrane fusion between pronuclear envelopes, followed by fenestration, promotes pronuclear fusion.
Although much investigative work has elucidated intracellular factors and mechanisms controlling this process, the extracellular regulation of cytokinesis remains unclear.
The conserved exocyst complex is required for scission of the intercellular cytokinetic bridge, although the molecular mechanisms it employs in this process are unclear.
Perturbation of spectrin-based membrane mechanics causes hereditary elliptocytosis and spinocerebellar ataxia, but the underlying cellular basis of pathogenesis remains unclear.
These effectors regulate the cytoskeleton, leading to a variety of cellular outputs including pronuclear migration, nuclear migration through constricted spaces, nuclear anchorage, centrosome attachment to nuclei, meiotic chromosome movements, and DNA damage repair.
The cellular recycling process of macroautophagy/autophagy is an essential homeostatic system induced by various stresses, but it remains unclear how autophagy contributes to organismal stress resistance.
Glucose increased c-Jun N-terminal kinase (JNK) and decreased extracellular signal-regulated kinases 1 and 2 (ERK1/2) and p38 phosphorylation, while ALE reduced p-JNK and p-p38 but not p-ERK1/2, accompanied by nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1, and NAD(P)H quinine oxidoreductase 1 downregulation.
Although peroxisomal fatty acid (FA) β-oxidation is known to be critical for animal development, the cellular mechanisms that control the manner in which its neuronal deficiency causes developmental defects remain unclear.
In animal cells, nuclear envelope breakdown (NEBD) is required for proper chromosome segregation.
Eukaryotic cells internalize transmembrane receptors via clathrin-mediated endocytosis, but it remains unclear how the machinery underpinning this process is regulated.
Although canonical engulfment proteins drive cell soma clearance, these are not required for process removal.
Certain nonenveloped viruses can exit cultured cells in nonlytic ways; however, such nonlytic exit has not been demonstrated in vivo In addition, it is not clear how such nonlytic exit is achieved mechanistically in vivo Orsay virus is a nonenveloped RNA virus that infects the intestine cells of the nematode C. elegans It is currently the only virus known to naturally infect C. elegans Using this in vivo model, we show that the δ protein encoded by Orsay virus facilitates the nonlytic exit of the virus, possibly by interacting with host actin on the apical side of worm intestine cells.
These cell-penetrating antibacterial CAPHs have specific subcellular localizations that allow for targeting of pathogenic bacteria at their intracellular niches, a unique feature that promotes the successful clearance of intracellular pathogens ( Salmonella, Shigella, and Listeria) residing within macrophages.
To prevent the intracellular content of the apoptotic cells causing damage to surrounding cells, apoptotic cells are quickly cleared by engulfment.
The N-terminal intracellular domain can be processed and localized to the nucleus, but the significance of this nuclear localization is unknown.
Furthermore, in KATOIII human gastric cancer cells, BCL7B knockdown induced nuclear enlargement, promoted the multinuclei phenotype and suppressed cell death.
Cells lacking U34 modifications exhibit gene expression hallmarks of proteotoxic stress, accumulate aggregates of endogenous proteins, and are severely compromised in clearing stress-induced protein aggregates.
We identified reproducible, quantitative differences that generate a subset of Wnt-signaled cells with a significantly higher nuclear concentration of the TCF/β-catenin activating complex.
Excellent examples of molecular memory in post-dauer animals have been documented in Caenorhabditis elegans It is clear that a single suite of mechanisms does not regulate diapause across all species and developmental stages.
In the cell corpse clearance stage, recognition of cell corpses by phagocytes triggers several signaling pathways to induce phagocytosis of apoptotic cell corpses.
SPARC regulates numerous cellular processes including integrin-mediated cell adhesion, cell signaling pathways, and extracellular matrix assembly; however, the mechanism by which SPARC promotes cell invasion in vivo remains unclear.
While the molecular mechanism behind this binary cell fate switch is not fully understood, it appears that both secreted Wnt ligands and asymmetric cortical factors contribute to the generation of the difference in nuclear β-catenin levels between daughter cells. β-Catenin then cooperates with lineage specific transcription factors to induce the expression of novel sets of transcription factors at each round of divisions, thereby diversifying cell fate.
In C. elegans, similar to humans, these proteins are expressed in a cell- and tissue-specific manner, can assemble into heteropolymers and into 5-10nm wide filaments that account for the principal structural elements at the nuclear periphery, nucleoplasm, and cytoplasm.
In addition, in HepG2 liver cells nuclear CREB regulated transcription coactivator 2 (CRTC2) protein expression and phosphorylation of glycogen synthase was decreased, while glycogen synthase kinase phosphorylation was increased indicating decreased gluconeogenesis and glycogen synthesis.
However, the roles of lncRNAs in regulating cellular response to engineered nanomaterials (ENMs) are still unclear.
Our work uncovers several previously uncharacterized functions of DIN-1S in executing and maintaining many of the cellular and physiological processes required for appropriate dauer arrest, while also shedding light on the coordination of nuclear hormone signaling, the LKB1/AMPK signaling cascade, and ILS/TGFβ in the control of cell cycle quiescence and tissue growth: a key feature that is often misregulated in a number of hormone-dependent cancers.
In addition to niche anchoring, however, recent studies have revealed other important roles for adhesion molecules in the regulation of stem cell function, and it is clear that stem cell-niche adhesion is crucial for stem cell self-renewal and is dynamically regulated.
Uncertain evidence (21)
Cell imaging experiment clearly suggest that compounds were able to cross cell membrane and accumulate thus causing cytotoxicity.
Psoralen could inhibit the proliferation of human breast cancer cells, however, the molecular mechanism was unclear.
Our work is based on the hypothesis that steroid hormones regulate cells through traditional cytoplasmic and nuclear receptor-mediated mechanisms, as well as by rapid effects that are mediated by membrane-associated pathways.
Although insulators have been suggested to regulate the subcellular localization of chromosomes, it is still unclear whether this property is important for their anti-silencing activity.
The high levels of DNA double-strand breaks (DSBs) observed in old cells and premature aging syndromes are likely a primary source of genome instability, but the underlying cause of their formation is still unclear.
Suramin probably inhibits cell proliferation by inhibiting intranuclear enzymes, as well as by partial blockage of EGF signal transduction.
The free radical theory of aging sustains that reactive oxygen species (ROS) induce cellular damage limiting organismal fitness but experimental data do not clearly support this hypothesis.
Although several studies suggest a role for alternatively activated macrophages, other regulatory cells, and immunosuppressive molecules, in this immunoregulatory activity of the parasite-derived cystatin, there is still no clear demonstration as to how cystatin induces its anti-inflammatory effect in suppressing CIADs.
These results suggest that rSjp40 inhibits the activation of hepatic stellate cells by promoting nuclear translocation of YB1 and inducing BMP-7/Smad1/5/8 pathway, which provide a new clue to guide ongoing research into the anti-fibrosis of rSjp40.
These antibodies bind to PZQ treated worms and may be involved in an antibody-dependent cellular cytotoxicity reactions which result in the clearance of worms from the vasculature.
As osteoclasts are cells of the monocyte/macrophage lineage, we hypothesised that ES products might suppress receptor activator of nuclear factor kappaB ligand-induced osteoclastogenesis.
The results showed that koumine, Gelsemine and Gelsenicine could significantly inhibit the proliferation of HepG2 cell and Gelsenicine, the most effective fraction, was clearly in dose- and time-dependent manners, while exhibited low cytotoxicity to the Vero cell.
It has been suggested that helminth-derived cystatins inhibit cathepsins in dendritic cells (DC), but their immunomodulatory mechanisms are unclear.
It is suggested that the basis for the acquired resistance in R-94 cells towards induction of cell differentiation by PMA is a block in signal transmission involving phosphorylation of nuclear protein(s) following the binding of the inducer PMA to its receptor (protein kinase C).
We also found that AoArc genes could regulate conidial phenotypes, cell nuclear distribution, pH response, and stress resistance.
Interestingly, Ago1, Dcr1, Dcr2, and Rdp1 are translationally induced in mating cells, and Ago1, Dcr1, and Dcr2 localize to processing bodies (P bodies), whereas Rdp1 appears to be nuclear, providing mechanistic insights into the elevated silencing efficiency during sexual reproduction.
We speculate that the primordial function of wnt class genes may have been to regulate cell-cell adhesion and that the nuclear signaling components of the wnt pathway arose later in association with the evolution of diverse cell types.
Concomitant depletion of NA from infected cell nuclei suggests a role of these products in regulating nuclear functions of host cells.
Rotatory actomyosin flows during division have been implied in specifying and reorienting the cell division axis, but how general such reorientation events are, and how they are controlled, remains unclear.
Thus, the physiological impacts of environmental stress may begin at the cellular level with the formation of stress induced nuclear granules.
Our studies suggest universal mechanisms for dismantling morphologically complex cells and uncover a phagosome-sealing component that promotes cell process clearance.