نتایج جستجو برای: olig2
تعداد نتایج: 604 فیلتر نتایج به سال:
The pons controls crucial sensorimotor and autonomic functions. In humans, it grows sixfold postnatally and is a site of paediatric gliomas; however, the mechanisms of pontine growth remain poorly understood. We show that the murine pons quadruples in volume postnatally; growth is fastest during postnatal days 0-4 (P0-P4), preceding most myelination. We identify three postnatal proliferative co...
Recent discoveries have enhanced our knowledge of the transcriptional control of oligodendrocyte (OG) development. In particular, the transcription factors (TFs) Olig2, Pax6, and Nkx2.2 have been shown to be important in the specification and/or maturation of the OG lineage. Although numerous other TFs are expressed by OGs, little is known regarding their role(s) in oligodendrogenesis. One such...
The nuclear protein poly(ADP-ribose) polymerase-1 (PARP-1) is activated in response to DNA nicks and thus promotes DNA repair. The addition of ADP-riboses to acidic amino acid residues modifies the chromatin structure and affects DNA transcription and repair. This week, Visochek et al. provide data indicating that neurotrophins can also trigger PARP-1 activation. Brief exposures of cultured cor...
BACKGROUND Deregulation of platelet-derived growth factor (PDGF) signaling is a hallmark of malignant glioma. Two alternatively spliced PDGF-A mRNAs have been described, corresponding to a long (L) and a short (S) isoform of PDGF-A. In contrast to PDGF-A(S), the PDGF-A(L) isoform has a lysine and arginine rich carboxy-terminal extension that acts as an extracellular matrix retention motif. Howe...
Background and Objective: One of the approaches for treatment of demylination diseases is cell therapy. Stem cells have been used as a source for generating oligodendrocyte. In a previous communication, the oligodendrocyte-like cells (OLCs) were generated from bone marrow stromal cells (BMSCs) using preinducers (dimethyl sulfoxide and retinoic acid) and induction protocol (PDGF, bFGF, heregulin...
مقدمه: دمیلینه شدن، رویدادی پاتولوژیک و غیر معمول در سیستم عصبی است. معمولاً پس از دمیلینه شدن، رمیلیناسیون (پاسخ رژنریتیو خود به خودی) رخ می دهد که نمونه ای از توان ترمیم سیستم عصبی آسیب دیده توسط مشارکت سلولهای پیش ساز چندظرفیتی است. ms یک بیماری التهابی مزمن دمیلینه کننده سیستم عصبی مرکزی است که در آن الیگودندروسیت های میلین ساز هدف حملات التهابی و ایمنی قرار می گیرند. هیپوکمپ به شدت نسبت به ...
The generation of functionally distinct neuronal subtypes within the vertebrate central nervous system (CNS) requires the precise regulation of progenitor gene expression in specific neuronal territories during early embryogenesis. Accumulating evidence has implicated histone deacetylase (HDAC) proteins in cell specification, proliferation, and differentiation in diverse embryonic and adult tis...
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