let-7 microRNA regulates neurogliogenesis in the mammalian retina through Hmga2
نویسندگان
چکیده
منابع مشابه
The tumor suppressor microRNA let-7 represses the HMGA2 oncogene.
HMGA2, a high-mobility group protein, is oncogenic in a variety of tumors, including benign mesenchymal tumors and lung cancers. Knockdown of Dicer in HeLa cells revealed that the HMGA2 gene is transcriptionally active, but its mRNA is destabilized in the cytoplasm through the microRNA (miRNA) pathway. HMGA2 was derepressed upon inhibition of let-7 in cells with high levels of the miRNA. Ectopi...
متن کاملLIN28 alters cell fate succession and acts independently of the let-7 microRNA during neurogliogenesis in vitro.
LIN28 is an RNA-binding protein that is expressed in many developing tissues. It can block let-7 (Mirlet7) microRNA processing and help promote pluripotency. We have observed LIN28 expression in the developing mouse neural tube, colocalizing with SOX2, suggesting a role in neural development. To better understand its normal developmental function, we investigated LIN28 activity during neuroglio...
متن کاملLet-7 repression leads to HMGA2 overexpression in uterine leiomyosarcoma
Overexpression of HMGA2 is common in uterine leiomyomas (ULM). The expression of HMGA2 in its malignant counterpart - uterine leiomyosarcomas (ULMS) remains undetermined. Recently it has been shown that repression of HMGA2 by microRNA let-7s is a critical molecular regulatory mechanism associated with tumour growth in many tumours and cell types, including leiomyomas. To test whether HMGA2 and ...
متن کاملEvolution of the let-7 microRNA Family
The increase of bodyplan complexity in early bilaterian evolution is correlates with the advent and diversification of microRNAs. These small RNAs guide animal development by regulating temporal transitions in gene expression involved in cell fate choices and transitions between pluripotency and differentiation. One of the two known microRNAs whose origins date back before the bilaterian ancest...
متن کاملThe primary target of let-7 microRNA.
The let-7 miRNA (microRNA) is an essential regulator of development from nematode worms to humans. Altered expression of let-7 results in larval arrest or lethality in Caenorhabditis elegans. Likewise, under- or over-expression of let-7 in human cells can result in cellular overproliferation or halted cell division respectively. Thus the biogenesis of this critical miRNA is controlled at multip...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2016
ISSN: 0012-1606
DOI: 10.1016/j.ydbio.2015.12.010