WBbt:0004017 vs thin
Refuting evidence (8)
Antiviral activity and mechanistic aspects were determined leading to the following statements: (i) ART exerts antiviral activity towards human and animal herpesviruses, (ii) no induction of ART-resistant HCMV mutants occurred in vitro, (iii) chemically modified derivatives of ART showed strongly enhanced anti-HCMV efficacy, (iv) NF-κB reporter constructs, upregulated during HCMV replication, could be partially blocked by ART treatment, (v) ART activity analyzed in stable reporter cell clones indicated an inhibition of stimulated NF-κB but not CREB pathway, (vi) solid-phase immobilized ART was able to bind to NF-κB RelA/p65, and (vii) peptides within NF-κB RelA/p65 represent candidates of ART binding as analyzed by in silico docking and mass spectrometry.
These observations support the hypothesis that primary afferent terminals in the frog do not have receptors for excitatory amino acids and that depolarization of terminals induced by excitatory amino acids is mediated through release of K from other cells within the dorsal horn.
HOE showed no significant ability to induce 6-thioguanine resistant mutants, possibly because drug-treated cells are highly susceptible to apoptosis within very short times.
Of four indolactam-Vs lacking the monoterpenoid moiety of native teleocidin, (-)-indolactam-V bound to the 12-O-tetradecanoylphorbol-13-acetate receptor in cell membranes and induced both adhesion of HL-60 cells and ornithine decarboxylase activity in mouse skin, although its effects were weaker than those of teleocidin. (+)-Indolactam-V and two isomers of epi-indolactam-V showed no induction of ornithine decarboxylase.
However, unlike these direct PKC activators, PAF and LTB4 induced only moderate decreases in cytosolic PKC; acted only on PMN pretreated with cytochalasin B; did not mobilize PKC in disrupted PMN or activate PKC in a cell-free system; and with respect to PAF, induced responses that partially reversed within 30 min.
Unlike the phorbol esters, bryostatin is unable to induce a macrophage-like differentiation of HL-60 cells; however, bryostatin, in a dose-dependent fashion, blocks phorbol ester-induced differentiation of HL-60 cells and, if applied within 48 hr of phorbol esters, halts further differentiation.
The level of apoptosis induced is independent of worm number, suggesting that it is not a consequence of worm-induced damage but rather a mechanism for controlling cell number within the crypt.
They are, however, not generally considered to be 'true' stem cells, owing to their eventual terminal differentiation and the lack of a defined stem cell niche-a microenvironment that promotes the proliferation and prevents the differentiation of the stem cells that reside within.
Supporting evidence (141)
Seizures induced by intra-amygdala kainic acid increased levels of P2X7 receptor protein and interleukin-1β and caused significant cell death within the ipsilateral hippocampus.
The expression of fosB, an immediate early gene encoding FosB and ΔFosB/Δ2ΔFosB by alternative splicing and translation initiation, is known to be induced in neural progenitor cells within the subventricular zone of the lateral ventricles and subgranular zone of the hippocampus, following transient forebrain ischemia in the rat brain.
Moreover, in-depth analysis revealed that PP caused inhibition of WNT pathway activity and stemness regulator expression including NANOG, SOX2 and OCT4, which were inherently upregulated in the BCSCs as compared with the bulk of cells within the tumor.
Thus emetine can be selectively delivered to cancer cells in the region of metastatic cancer as a prodrug that will be activated by an enzyme selectively overexpressed within the metastatic tumor microenvironment.
A modest decline in intracellular ATP or pH within an optimal range induces maximum IL-1β release while their excessive decline suppresses IL-1β release.
In silico and ex vivo study showed that QC disrupted the interaction between cMET and ABCG2 to inhibit the angiogenic response in endothelial cells by reducing the secretion of VEGF-A from PDBCSCs within the TME.
RNAi-mediated silencing of gene expression of either T. brucei RuvBL1 or RuvBL2 caused cell death within 72 h.
In vivo studies demonstrated that AS inhibited LLC progression, enhanced T cell infiltration and activity, and reprogrammed TAMs into an inflammatory phenotype, thereby alleviating T cell exhaustion within the TME.
It helps in proliferation of myeloid-derived suppressor cells (MDSCs), which within the tumor microenvironment (TME) suppress T cells to encourage tumor growth, metastasis, and resistance to immunotherapy, besides playing dynamic role in regulating macrophages within the tumor.
We have used the linker-scanning mutagenesis procedure, followed by transfer of the mutant genes into mouse L-cells for analysis of their phenotype, to determine sequences within a cloned alpha 2u-globulin promoter that are required for its regulation by glucocorticoids.
While putrescine has been known to suppress the induction of ODC, we have found that in DF3 cells 10(-4)M ornithine completely suppresses ODC activity.
Tumor cells frequently develop immune resistance through interferon-γ (IFN-γ)-induced PD-L1 expression, acquisition of cancer stem cell (CSC)-like features, and adaptation to hypoxia within the tumor microenvironment (TME).
CEM-SS cells were relatively resistant to TNF cell killing but TNF caused an early stimulation of metabolism within 2-4 hr, followed by a suppression of metabolic activity occurring over 20 hr.
By binding to cell surface receptors, TNF-alpha promotes signals within the cells.
In an attempt to inhibit c-Myc expression and the growth of an established murine melanoma cell line, we targeted homopurine sequences within the mouse myc mRNA with modified antisense oligonucleotides (AS ODNs).
Elicitation of cultured chickpea (Cicer arietinum L.) cells stimulates a signal transduction pathway leading to several rapid responses: (1) oxidative burst, (2) extracellular alkalinisation, (3) extracellular acidification, (4) transient K+ efflux, and (5) activation of defence related genes all within 2 hours.
Expression of topoisomerase II alpha is regulated by cellular proliferation; transcriptional down-regulation in confluent cells is modulated through sequences within the promoter.
In vitro studies have shown that P. falciparum - infected erythrocytes induce the release of G-CSF by several cells such as endothelial cells and monocytes, however, nothing is known about G-CSF serum concentrations during the clinical course of severe P. falciparum malaria.
Prominent PAI-1 mRNA hybridization signals were induced in the vascular cells of the heart, and unexpectedly, also in cardiocytes, within 1-2 h after injection of kainate (i.p., 11-25 mg/kg body weight); the signals persisted for at least 8 h and disappeared after 24 h.
Kainate-induced cell death was prevented by one of the following agents: adenylate cyclase activator (forskolin), cyclic AMP analogues (dibutyryl cyclic AMP and 8-bromo-cyclic AMP), and cyclic AMP phosphodiesterase inhibitors (3-isobutyl-1-methylxanthine, pentoxifylline, propentofylline, and ibudilast).
Thus, we chose to examine the relationship between the cellular distribution and expression of glutamate receptor subunit proteins and cell loss within the hippocampus in mouse strains resistant and susceptible to kainate-induced excitotoxicity.
We propose that initial seizures induce ectopic precursor cell proliferation resulting in the dispersion of immature neurons within the adult granule cell layer.
Excitatory amino acid transporters (EAATs) maintain the balance between pathological and physiological conditions by limiting the extracellular concentration of glutamate within the CNS and thus preventing excitotoxic injury.
Glutamate, which can be released by activated immune cells or produced within the CNS, has been implicated as a potential mediator of tissue injury in multiple sclerosis. alpha-Amino-3-hydroxy-5-methyl-4-isoxazole proprionic acid (AMPA) and kainate are highly toxic when added to rodent OL cultures.
When the cells were treated with neurotransmitters, translation of these proteins was induced within a short time, and a change in the amount of YB-1 on its target mRNAs was observed in the heavy-sedimenting polysome fractions on a sucrose gradient.
We set out to examine whether colchicine and benomyl bind to tubulin at distinct sites using a human cervical cancer (HeLa) cell line with the thinking that these agents should exert either additive or synergistic activity on cell proliferation if their binding sites on tubulin are different.
Treatment of hippocampal cultures with the excitotoxin kainic acid increased levels of Lys-Asp-Glu-Leu-containing proteins and microsomal 14-3-3 zeta levels and caused cell death within the CA1, CA3 and dentate gyrus of the hippocampus.
Consistent with the permanent nature of age-related molecular changes in stromal cells, induced thymic regrowth is not durable, with the regrown organ returning to an atrophic state within 2 weeks of reaching peak size.
In intact cells PDE1A immunolabeling was not localized to the cell surface membrane (structured illumination microscopy imaging), but located approximately within about 150nm inside of immunolabeling of hyperpolarization-activated cyclic nucleotide-gated potassium channels (HCN4), which reside within lipid-raft-rich microenvironments.
Similarly, mono-cellular organism can activate signalling pathways leading to death of a number of cells within a colony.
Glucocorticoids (GCs) modulate many cellular processes through the binding of the glucocorticoid receptor (GR) to specific responsive elements located upstream of the transcription starting site or within an intron of GC target genes.
Mounting evidence in other cell types points to a balance between Ca(2+)-activated counteracting enzymes, ACs and phosphodiesterases (PDEs) within these cells.
Senescent cells are capable of activating inflammatory factor secretion pathways, generating local, non‑infectious inflammatory microenvironments within tissues, leading to organ degeneration and the development of aging‑associated diseases.
In SAMP10 mice, in addition to preventing a decrease in the naïve T cell ratio, aging-associated skin thinning was suppressed histologically and the expression of representative tight junction genes, such as Claudin-1 and Zo-1, was increased.
Integrative analysis using stem cell fate tracing, epigenetics and reverse genetics showed that further feeding with an HFD subsequently induced lipid droplets and NF-κB activation within HFSCs via autocrine and/or paracrine IL-1R signalling.
Human T cells stimulated using standard methods within fresh tonsil slices did not proliferate except in the presence of inhibitors described above.
SAT cells, which produced ABC-inducing factors IL-21 and IFN-γ, and ABCs progressively accumulated within TLTs in aged kidneys after injury.
Here, by combining 3D-TESM and shRNA technologies, we developed a disease modelling strategy to induce distinct genetic deficiencies in a single hiPSC-derived myogenic progenitor cell line within 1 week.
In addition to improving insulin sensitivity and inhibiting hepatic gluconeogenesis, metformin modulates inflammation, oxidative stress, and cellular metabolism, particularly within adipose tissue.
By activating endogenous stem cells to promote regeneration response has provided a new thinking for the treatment of degenerative diseases.
We review the distinct cell populations ('species') within the granuloma and examine how they integrate with each other and interact with their microenvironment to form a multifaceted cell community in different space-time frames.
Resistant BALB/c mice rapidly recruited high numbers of Th2 cells to the gut within the 1-week time frame required for larval development in the intestinal submucosa.
Type 1 diabetes (T1D) is an autoimmune disease caused by the destruction of the insulin-producing β-cells within the pancreas.
Strikingly, we demonstrate that ESPs from the opposite sex promote stem cell proliferation, in an ERK- and p38 MAPK-dependent manner, in the tegument and within the testes of males, and the ovaries and vitellaria of females.
The IL-2-TGFβ surrogate agonist robustly induced antigen-specific, functional and stable pTreg cells in vivo within peripheral lymphoid organs in mice immunized with ovalbumin (OVA) and myelin oligodendrocyte glycoprotein (MOG)35-55.
Mitogen-activated protein kinase (MAPK) family members connect cell-surface receptors to regulatory targets within cells and influence a number of tissue-specific biological activities such as cell proliferation, differentiation and survival.
Cells within the pericyst displayed high levels of alkaline phosphatase activity and mineralized nodule formation, as induced by osteogenic media.
A single Brachionus rotifer can consume thousands of algae cells per hour causing an algae pond to crash within days of infection.
The ethanolic leaf extract of Alpinia elegans significantly inhibits cellular proliferation and migration at high concentrations, with direct exposure-response relationship within concentrations.
Thus, klf4 is critical for regulating the balance between different cell populations within the tegumental progenitor pool and thereby influences tegumental production dynamics and the fine-tuning of the molecular identity of the mature tegument.
Nanocellulose carriers improved the delivery of microalgal components within B. alexandrina snails, causing the cercariae to lose their ideal shape.
The equilibrium between Th17 and Treg cells plays a pivotal role in modulating the abundance of inflammatory cells within the organism, thereby ameliorating inflammation and alleviating symptoms associated with allergic asthma.
Understanding the functions of distinct populations of cells within the tegumental syncytium is expected to provide insights into parasite defense mechanisms and new avenues for combatting the disease these worms cause.
When MY-1250 (3.6 x 10(-5) M) was added to mast cells, it caused a rapid increase in adenosine 3':5'-cyclic monophosphate (cyclic AMP) and decrease in adenosine 5'-triphosphate (ATP), both of which recovered to their original levels within 2 min.
Whole-cell patch-clamp of presumed neurones revealed outwardly directed K(+) currents that comprised, in varying proportions, a rapidly activating (time constant tau =0.94+/-0.79 ms; N=15) and inactivating ( tau =26.1+/-1.9 ms; N=22) current and a second current that also activated rapidly ( tau =1.1+/-0.2 ms; N=9) (means +/- s.e.m.) but did not inactivate within 100 ms.
Nematodes additionally employ a cell-type-specific kinesin-3 motor, KLP-6, which moves within cilia independently of IFT and regulates ciliary content and function.
These cells were detected within and around Toxocara-induced granulomas as well as in isolated inflammatory foci in the portal tracts or within the hepatic parenchyma.
TPA in NCTC cells inhibited the basal ornithine decarboxylase activity and cell growth, whereas H-7 did not modify TPA effect.
Analysis of purified T cells reconstituted with splenocytes, demonstrated that T cells were the target lymphocytes of the stimulating molecule, contained within AWH.
In HEL-30 cells, protein kinase C activation is followed by ornithine decarboxylase stimulation and cell proliferation, events inhibited by H-7, a specific inhibitor of protein kinase C.
When transplanted into mast cell-deficient W(sh)/W(sh) mice, Notch2-null bone marrow-derived mast cells were rarely found within the epithelial layer but abnormally localized to the lamina propria, whereas control bone marrow-derived mast cells were mainly found within the epithelial layer.
Studies on fixed PBL T4 cells and MOLT-4 cells by immunofluorescence microscopy demonstrated that the decreased expression of T4 from the cell surface correlated with a bright clustering of T4 within the cytoplasm, indicating that PDB had induced an internalization of this antigen.
Interruption of the vascular bundles of Zinnia internodes induced transdifferentiation of cells into tracheary elements (TEs) or sieve elements (SEs) within 4 d of wounding.
Tracheary-element (TE) differentiation in suspension-cultured mesophyll cells of Zinnia elegans L. was completely inhibited by caffeine and theophylline only when these methylxanthines were applied at least 8 h prior to the appearance of secondary cell-wall thickenings.
Immunofluorescence assays showed that TMEM147 was localized to the cell membrane and within the cell membrane in goat PBMC.
In all cells examined the biotinylated pW1 only hybridizes to a euchromatic gap region (eg3) within the large heterochromatin block of the long arm of the W chromosome.
TsMPIN was primarily localized in the lining cells of the trabecules and the muscles surrounding the scolex, and was sparsely within the cytosol of the bladder wall.
In situ hybridization analysis showed that Djf-1 mRNA is specifically expressed in cells located within the marginal region encircling the worm body.
This new approach enables cells to be embedded within micrometer-thick slabs of gel with good viability, permits cell culture for at least 12 days, and facilitates recovery of viable cells from the gel simply by incubating the culture in buffer at 4 °C (thus, avoiding the enzymatic degradation required for cell harvesting when using commercial protein-based gels, such as Matrigel).
Infectious pathogens can selectively stimulate activation or suppression of T cells to facilitate their survival within humans.
To survive and reproduce, Wolbachia interacts with and modifies host subcellular structures, while sensing and responding to changes within the cellular environment.
Many bacteria live as intracellular symbionts, causing persistent infections within insects.
Root-knot nematodes (RKNs) induce giant cells (GCs) within galls which are characterized by large-scale gene repression at early stages.
Cysts (CNs) and root-knot nematodes (RKNs) induce specialized feeding cells, syncytia, and giant cells (GCs), respectively, within plant roots.
However, the subcellular localization and plasmolysis assay revealed that the unconventional secretory signal present on the Mi-ISC-1 is not recognized by the plant secretory pathway and that the effector was localized within the cytoplasm of plant cells, but not apoplast, when transiently expressed in Nicotiana benthamiana leaves by agroinfiltration.
The nematode-trapping fungus Drechslerella dactyloides can capture free-living nematodes using constricting rings by cell inflation within 1 s when stimulated by nematodes entering the rings.
Root knot nematodes (RKNs) induce hypertrophy and cell proliferation within the vascular cylinders of host plants, leading to the formation of giant cells (GCs) that are enlarged, multinucleate cells with high metabolic activity.
A Glycine max (soybean) hemicellulose modifying gene, xyloglucan endotransglycoslase/hydrolase (XTH43), has been identified as being expressed within a nurse cell known as a syncytium developing within the soybean root undergoing the process of defense to infection by the parasitic nematode, Heterodera glycines.
Therefore, the activation of plant developmental programmes promoting transient-pluripotency/stemness leads to the generation of quiescent-centre and meristematic-like cell identities within the vascular cylinder of galls.
TSO treatment induced T. suis-specific serum antibodies, a transient blood eosinophilia, and increases in IFNγ+ and IL4+ cells within the circulating CD4+ T-cell population.
This mouse mast cell protease-1 sensitive, calcium-independent PLA2 is not detectable in the jejunal epithelium of uninfected mice but becomes highly expressed within the epithelial compartment within days of nematode establishment.
Omics combined with cell isolation techniques have shed some light on the heterogeneous expression signatures of nematode induced gall tissues, i.e., plant defences are specifically inhibited in giant cells within the gall aiding the nematode for a successful establishment.
To characterize cell wall changes induced within these structures at a molecular level, we studied the expression of an extensin gene (coding for a major structural cell wall protein) in nematode-infected tobacco roots.
GFP levels were constant in cells surrounding the syncytium induced by H. schachtii, but they fell progressive from 10 to 35 days postinfection within this structure.
Plant-parasitic root-knot nematodes induce the formation of giant cells within the plant root, and it has been recognized that auxin accumulates in these feeding sites.
We observed that some cell-specific mRNAs accumulate non-homogenously within cells, localizing to membranes, P granules (associated with progenitor germ cells in the P lineage) and P-bodies (associated with RNA processing).
Besides biofilm inhibition, GCC also suppressed the production of extracellular polymeric substance, slime and staphyloxanthin.
ACTB: actin, beta; ADP: adenosine diphosphate; AMP: adenosine monophosphate; AMPK: AMP-activated protein kinase; ARMC8: armadillo repeat containing 8; ATP: adenosine triphosphate; BafA1: bafilomycin A1; BCAA: branched chain amino acid; BICC1: BicC family RNA binding protein 1; BSA: bovine serum albumin; CAMKK2 kinase: calcium/calmodulin dependent protein kinase kinase 2, beta; CHX: cycloheximide; DMEM: Dulbecco's modified Eagle's medium; E1: ubiquitin-activating enzyme; E2: ubiquitin-conjugating enzyme; E3: ubiquitin ligase; ECAR: extracellular acidification rate; FACS: fluorescent associated cell sorter; FBP1: fructose-bisphosphatase 1; FCCP: carbonyl cyanide-4 (trifluoromethoxy) phenylhydrazone; G6P: glucose-6-phosphate; GDP: guanosine diphosphate; GFP: green fluorescent protein; GID: glucose induced degradation deficient; GMP: guanosine monophosphate; GTP: guanosine triphosphate; HBP1: high mobility group box transcription factor 1; HPRT: hypoxanthine guanine phosphoribosyl transferase; KO: knock out; LE: long exposure; MAEA: macrophage erythroblast attacher; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; MKLN1: muskelin 1; mRNA: messenger RNA; MTOR: mechanistic target of rapamycin; NES: normalized enrichment score; OCR: oxygen consumption rate; PBS: phosphate buffered saline; PCK1: phosphoenolpyruvate carboxykinase 1, cytosolic; PCR: polymerase chain reaction; PFA: paraformaldehyde; RANBP9: RAN binding protein 9; RING: really interesting new gene; RMND5: required for meiotic nuclear division5 homolog; RPS6: ribosomal protein S6; RPTOR: regulatory associated protein of MTOR, complex 1; SE: short exposure; SEM: standard error of the mean; SQSTM1/p62: sequestosome 1; TSC2: tuberous sclerosis complex 2; TUBA4A: tubulin; TUBE: tandem ubiquitin binding entities; Ub: ubiquitin; UPS: ubiquitin proteasome system; WDR26: WD repeat domain 26; WT: wild type.
To functionally polarize cells, these proteins must activate aPKC within a spatially defined membrane domain on one side of the cell in response to symmetry-breaking cues.
We identified a substantial degree of GPCR expression plasticity; particularly in the context of the environmentally-induced dauer diapause stage when one third of all tested GPCRs alter the cellular specificity of their expression within and outside the nervous system.
Collectively, our results demonstrate that TA and OA specifically and differentially modulate the release of distinct subsets of neuropeptides from different subcellular sites within the ASIs, highlighting the complexity of monoaminergic/peptidergic modulation, even in animals with a relatively simple nervous system.
Although many of the molecules that regulate germ cell proliferation and fate decisions have been identified, how these signals interact with cellular dynamics and physical forces within the gonad remains poorly understood.
The addition of probe 4 to living HEK293T cells allows efficient binding to and imaging of exogenous TTR within intracellular organelles, including the mitochondria and the endoplasmic reticulum.
The position and orientation of the mitotic spindle is precisely regulated to ensure the accurate partition of the cytoplasm between daughter cells and the correct localization of the daughters within growing tissue.
Among them, two isoforms of the trimeric intracellular cation (TRIC) channel family, named TRIC-A and TRIC-B, modulate the release of Ca2+ through the ryanodine receptor or inositol triphosphate receptor, and maintain the homeostasis of ions within SR/ER lumen.
SG suppressed the differentiation of 3T3-L1 cells stimulated by a mixture of 3-isobutyl-1-methylxanthine, dexamethasone, and insulin (MDI), and inhibited the proliferation of adipocytes during differentiation.
Programmed cell death (PCD) is the regulated removal of cells within an organism and plays a fundamental role in growth and development in nearly all eukaryotes.
The developmental function of this pathway is to coordinate the orientation of cells or structures within the plane of an epithelium or to organize cell-cell intercalation required for correct morphogenesis.
Stem cell self-renewal is tightly controlled by the concerted action of stem cell-intrinsic factors and signals within the niche.
The life-cycle of cellular slime molds comprises chronobiologically regulated processes.
Here, using studies in cell lines and in the context of a whole organism, we show that apoptotic cell recognition induces both an acute and sustained calcium flux within phagocytes and that the genes required for calcium flux are essential for engulfment.
Synapses are macromolecular structures that regulate intercellular communication in the nervous system, and are the main gatekeepers of information flow within neural networks.
Secondly, we describe our present understanding of the mechanisms by which the planar cell polarity pathways drive tissue morphogenesis by regulating the orientation of symmetric cell division within a field of cells.
Thus, not surprisingly, cells have developed a variety of mechanisms and tight controls to ensure sufficient and well-distributed recombination events within their genomes, the details of which remain to be fully elucidated.
In addition, Gqalpha and PLCbeta function cell autonomously within the intestine to affect the activity of the p38 MAPK pathway, an important component of Caenorhabditis elegans immune and oxidative stress response. p38 MAPK activity in the intestine is regulated by diacylglycerol levels, a product of PLCbeta's hydrolytic activity.
The subcellular localisation of full-length GFP fusion proteins was examined, in transgenic animals, for 62 essentially uncharacterized genes thought to be expressed within bodywall muscle cells.
In this communication, we address this issue by demonstrating the coupling of BES with droplet-based microfluidics for controlling live cell numbers within droplets and residues.
Here, we review recent findings on the role of PAR proteins in cell polarity in C. elegans and Drosophila, and emphasize the links that exist between PAR networks and cytoskeletal proteins that both regulate PAR protein localization and act as downstream effectors to elaborate polarity within the cell.
Understanding how stem cells are regulated, namely with respect to the control of their proliferation and differentiation within a functional organism, is thus primordial to safely profit from their therapeutic benefits.
The damaging effects of hypertonic stress on cellular proteins are poorly defined, and almost nothing is known about the pathways that detect and repair hypertonicity-induced protein damage.
Mammalian cells transfected with CeABF-1 expression plasmids were capable of blocking E2A-mediated gene transcription, but full repression activity required the presence of two conserved amino acid residues found within the first helix of the CeABF-1 bHLH domain.
They are involved in many molecular interactions, including defense against viruses and regulation of gene expression during development. miRNAs interfere with expression of messenger RNAs encoding factors that control developmental timing, stem cell maintenance, and other developmental and physiological processes in plants and animals. miRNAs are negative regulators that function as specificity determinants, or guides, within complexes that inhibit protein synthesis (animals) or promote degradation (plants) of mRNA targets.
Epidermal cells undergo reciprocal interactions with underlying muscle cells, which regulate the position and function of IF-containing cell-matrix adhesion structures within the epidermis.
However, there are occasions where the apoptotic process benefits the host, as controlled cell death has been associated with limiting the pathogen population, parasite migration within the host and, in some instances, actually killing the invading organism.
The proliferation of germ cells is regulated differently, and occurs within a stem cell niche.
Studies on stem cells from diverse systems have shown that stem cell function is controlled by extracellular cues from the niche and by intrinsic genetic programs within the stem cell.
Granulosa cells within follicles incubated in medium alone exhibited extensive levels of apoptosis, and this onset of apoptosis was prevented by the inclusion of TGF alpha.
Thus, we have identified a widely distributed cellular protein that binds to a conserved domain within the 5'-UTR of ODC mRNA from many animal species; functional consequences of this binding remain to be determined.
This ability to regulate cell shape allows cells within a muscle quadrant to compensate for missing cells and to form a functional quadrant.
TULP1 and TULP2, which are expressed in the retina, make excellent candidates for these ocular diseases as a mutation within the tub gene is known to lead to early progressive retinal degeneration.
An intracellular protein termed CD2 binding protein 2 (CD2BP2), which binds to a site containing two PPPGHR segments within the cytoplasmic region of CD2, was identified.
However, the founding member of the Frizzled family, Drosophila Frizzled (FZ), was cloned almost a decade ago because of its role in regulating cell polarity within the plane of an epithelium.
These results indicate that twitchy is required for the function of both sensory cilia that are compartmentalised from the rest of the cell and sperm flagella that are formed within the cytosol of the cell.
Similarly, in hTERT-hNOF cells, BP-50 ng/µL, BP-75 ng/µL and BP-150 ng/µL induced significant cytotoxicity within 2 h compared with untreated, vehicle, supernatant and CHX treatments (p < .05).
Grant The composition and biophysical properties of cellular membranes must be tightly regulated to maintain the proper functions of myriad processes within cells.
In this study, we isolated cells from five major tissues in young and old worms and profiled the age-induced transcriptomic changes within these tissues.
Haem binding proteins are present in almost all cellular compartments, but the molecular mechanisms that regulate the transport and use of haem within the cell remain poorly understood2,3.
Here, we applied IR-LEGO to examine the cell-cell interactions mediated by semaphoring-plexin signaling in Caenorhabditis elegans by inducing wild-type semaphorin/plexin in single cells within the population of mutant cells lacking the relevant proteins.
To understand the function of cells such as neurons within an organism, it can be instrumental to inhibit cellular function, or to remove the cell (type) from the organism, and thus to observe the consequences on organismic and/or circuit function and animal behavior.
The NGs showed up to 72.4 % RNA encapsulation and 6.61 % loading efficiencies and facilitated the controlled release of the mRNA payloads at intracellular concentrations of the reducing agent glutathione, where most of the RNA was released within 24 hours.
Cell division is a highly regulated process that actively involves dynamic changes to the genetic material within the nucleus.
Furthermore, we demonstrate that photocaged FLP can be used to switch on expression of target genes in individual cells within the animal using a standard 405 nm microscope-mounted laser to deliver the activating light.
Apoptosis, a programmed cell death process activated in Alzheimer disease (AD), is not limited to neurons but extends to all cell types within the central nervous system (CNS).
We found that the extent of chromosome segregation during anaphase A is asymmetrically regulated by cell polarity cues and modulated by mechanical tension within the spindle, generated by opposing forces acting on chromosomes and spindle poles.
Strikingly, cell-specific rescue experiments show that UNC-61 regulates phasmid neuronal cilia via a cell non-autonomous mechanism, within supporting glial cells.
We found that the extent of chromosome segregation during anaphase A is asymmetrically regulated by cell polarity cues and modulated by mechanical tension within the spindle, generated by opposing forces acting on chromosomes and spindle poles.
At 10 μg/mL, Fmoc-Iodo-Phe markedly inhibited virulence factors, such as cell surface hydrophobicity, hemolysin and slime production.
In accord with the specificity of senescent cellular systems, up-regulation of pro-inflammatory molecules was also found within the NC preparations.
In presenting these new views, we wish to bring attention to the cell-extrinsic regulation of tumor growth, including tumor UPR-based cell-nonautonomous signaling as a mechanism of maintaining tumor heterogeneity and resistance to therapy, and suggest therapeutically targeting such mechanisms within the tumor microenvironment.
Hck-mediated cellular transformation of murine fibroblasts is reverted by ectopic expression of a membrane-anchored allele of Cbl as assessed by the cellular morphology, suppression of anchorage independent growth, and an overall reduction in the total tyrosine phosphorylation levels within the cells.
They perform essential functions in signal transduction, cellular motility, and the regulation of fluid flow within tissues.
Uncertain evidence (13)
In addition, we found that niclosamide inhibited tubulin polymerization in vitro, suggesting that niclosamide-induced delays in epiboly progression may, in part, be driven by disruption of microtubule formation and cell motility within the developing embryo.
These data suggest that seizures elicit divergent cell death and survival responses within neuronal populations and that the BAD cell death pathway may perform an instigator or reinforcement role in seizure-induced neuronal death.
We tested this hypothesis by assessing granule cell excitability repeatedly within the same awake rats at different stages of the synaptic reorganization process initiated by kainate-induced status epilepticus (SE).
Permeabilisation of the abomasal surface mucosa by worm chemicals would also explain how cells deep in the gastric glands could rapidly be affected by parasites emerging from the glands or within a day of transplantation of adult worms into naïve hosts, resulting in the pathophysiology typically caused by abomasal nematode parasitism.
The high expression levels of Foxp3 mRNA by CD4+ and CD8+ pT cells suggested that subpopulations of regulatory CD4+ Foxp3+ and CD8+ Foxp3+ T cells were involved in modulating the immune responses within the peritoneal cavity of E. multilocularis-infected mice.
The identification of the Tg737 gene associated with this mutation suggests that it functions in regulating the proliferation/differentiation of oval cells within the liver, which further indicates that this gene may function in pathological conditions that include oval cell proliferation, such as hepatocellular carcinogenesis.
After delivery into the cytosol of the plant cell, effectors may target proteins localized to different compartments within the plant cell.
Consistent with the predictions of comparative analysis: (a) VPS33B induced significantly more clustering than VPS33A in a renal cell line, (b) a putative fly VPS33B homologue but not Carnation protein also induced clustering and (c) the ability to induce clustering in renal cells was linked to two evolutionary conserved domains within VPS33B.
The highly effective nature of XTH43 overexpression in suppressing H. glycines parasitism in soybean has led to experiments examining whether the heterologous expression of XTH43 in Gossypium hirsutum (upland cotton) could impair the parasitism of Meloidogyne incognita, that form a different type of nurse cell called a giant cell that is enclosed within a swollen root structure called a gall.
It has been hypothesized that the major regulatory events controlling cell death occur by cell-autonomous mechanisms, that is, within the dying cell.
Furthermore, interesting preliminary work suggests that BCL-2 suppresses apoptosis via a mechanism that is linked to intracellular Ca2+ compartmentalization, and it appears that Ca2+ alterations in some examples of apoptosis occur as the result of changes within the mitochondria.
Some cells coexpressing MASH1 and PHD1 can be seen, suggesting that these two genes are sequentially activated within the same lineage.
Our findings identify an additional tuft cell effector function and suggest context-specific regulation of tuft-ILC2 circuits within the small intestine.