نتایج جستجو برای: olig1
تعداد نتایج: 107 فیلتر نتایج به سال:
سابقه و هدف: اولیگودندروسیت ها مسئول تولید میلین در سیستم عصبی مرکزی هستند. فاکتورهای رونویسی نظیر olig1 و olig2 در تنظیم تکوین سلول های اجدادی اولیگودندروسیت نقش مهمی دارند. مهمترین پروتئین سازنده میلین، پروتئین اصلی میلین (myelin basic protein=mbp) است. فاکتور مهارکننده لوکمیا (leukemia inhibitory factor=lif) نقش مهمی در تـولیــد میلین و پـاتـولــوژی مـالتیپــل اسکلـــروزیـس (multiple scleros...
BACKGROUND Lung cancer is the leading cause of cancer-related death worldwide. Currently, tumor, node, metastasis (TNM) staging provides the most accurate prognostic parameter for patients with non-small cell lung cancer (NSCLC). However, the overall survival of patients with resectable tumors varies significantly, indicating the need for additional prognostic factors to better predict the outc...
Rheb1 is an immediate early gene that functions to activate mammalian target of rapamycin (mTor) selectively in complex 1 (mTORC1). We have demonstrated previously that Rheb1 is essential for myelination in the CNS using a Nestin-Cre driver line that deletes Rheb1 in all neural cell lineages, and recent studies using oligodendrocyte-specific CNP-Cre have suggested a preferential role for mTORC1...
An interplay between the nucleosome binding proteins H1 and HMGN is known to affect chromatin dynamics, but the biological significance of this interplay is still not clear. We find that during embryonic stem cell differentiation loss of HMGNs leads to down regulation of genes involved in neural differentiation, and that the transcription factor OLIG2 is a central node in the affected pathway. ...
Sonic hedgehog (Shh), an organizing signal from ventral midline structures, is essential for the induction and maintenance of many ventral cell types in the embryonic neural tube. Olig1 and Olig2 are related basic helix-loop-helix factors induced by Shh in the ventral neural tube. Although expression analyses and gain-of-function experiments suggested that these factors were involved in motoneu...
Abstract Diffuse midline glioma, K27-altered (DMG) is a treatment resistant, uniformly fatal cancer that arises predominantly in children. Next-generation sequencing has revealed the majority of patients with DMG harbor K27M mutations canonical histone variants H3.1 and H3.3, leading to global epigenetic dysregulation an oligodendrocyte precursor cell (OPC) transcriptional profile. DLX2 homeobo...
Basic helix-loop-helix transcription factors Olig1 and Olig2 critically regulate oligodendrocyte development. Initially identified as a downstream effector of Olig1, an oligodendrocyte-specific zinc finger transcription repressor, Zfp488, cooperates with Olig2 function. Although Zfp488 is required for oligodendrocyte precursor formation and differentiation during embryonic development, its role...
Studies have indicated that oligodendrocytes in the spinal cord originate from a ventral progenitor domain defined by expression of the oligodendrocyte-determining bHLH proteins Olig1 and Olig2. Here, we provide evidence that progenitors in the dorsal spinal cord and hindbrain also produce oligodendrocytes and that the specification of these cells may result from a dorsal evasion of BMP signali...
The most common primary tumors of the human brain are thought to be of glial cell origin. However, glial cell neoplasms cannot be fully classified by cellular morphology or with conventional markers for astrocytes, oligodendrocytes, or their progenitors. Recent insights into central nervous system tumorigenesis suggest that novel molecular markers might be found among factors that have roles in...
background: the cuprizone multiple sclerosis (ms) animal model is characteristic for toxic demyelination and represents a reversible demyelination and remyelination system. it has been shown that green tea epigallocatechin-3-gallate (egcg) might be effective in improving the symptoms and pathological conditions associated with autoimmune inflammatory diseases in several animal models. objective...
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