نتایج جستجو برای: Oct4

تعداد نتایج: 2762  

Journal: :Genes 2021

White matter atrophy has been shown to precede the massive loss of striatal GABAergic neurons in Huntington’s disease (HD). This study investigated effects vivo expression reprogramming factor octamer-binding transcription 4 (OCT4) on neural stem cell (NSC) niche activation subventricular zone (SVZ) and induction fate specific microenvironment HD. R6/2 mice randomly received adeno-associated vi...

Journal: :Oncology reports 2015
Mingzhu Bai Mu Yuan Hong Liao Jiazhou Chen Binying Xie Dong Yan Xiaowei Xi Xianming Xu Zhenbo Zhang Youji Feng

OCT4 plays a critical role in the maintenance of stem cell pluripotency and proliferation, and is overexpressed in multiple human tumors, including endometrial cancer. OCT4 expression can be modulated by miR-145 and the OCT4 pseudogene 5 (OCT4-pg5), which share similar binding sites in the OCT4 3'-untranslated region. The goal of the present study was to evaluate the interaction between miR-145...

Journal: :International Journal of Human Genetics 2022

The researchers aimed to evaluate the effects of long non-coding ribonucleic acid plasmacytoma variant translocation 1 (lncRNA PVT1) regulating octamer binding transcription factor 4 (OCT4) expression on hepatocellular carcinoma (HCC) cells. It was discovered that in contrast blank group, si-PVT1 group had lower PVT1 and OCT4 expressions, number invading cells wound healing rate, higher radiose...

Journal: :Clinical Cancer Research 2004

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1389

ژن oct4 نقش بسیار حیاتی در بقاء، پرتوانی و خودبازسازی سلول های بنیادی جنینی ایفا می کند. بیان oct4 در سلول های بنیادی بالغ و انواعی از سلول های سرطانی و رده های سلولی مختلفی تشخیص داده شده است. این ژن تنها در پستانداران دیده شده و از نظر تکاملی حفاظت شده است به طوری که توالی آمینواسیدی oct4 انسانی با موش %87 شباهت دارد و از نظر سازماندهی ژنومیک نیز کاملاً مشابه هستند. همولوگ ژن oct4انسانی را در ...

2013
Inchul Choi Timothy S. Carey Catherine A. Wilson Jason G. Knott

In mouse blastocysts segregation of the inner cell mass (ICM) and the trophectoderm (TE) is regulated by the mutually antagonistic effects of the transcription factors Oct4 and Cdx2 expressed in the ICM and TE, respectively. In contrast, in other species such as bovine and human, Oct4 is not restricted to the ICM and continues to be expressed in the Cdx2-positive TE. A recent comparative study ...

2012
Yu-Chih Wu Thai-Yen Ling Shing-Hwa Lu Hung-Chih Kuo Hong-Nerng Ho Shauh-Der Yeh Yen-Hua Huang

Testicular germcell tumors (TGCT) generally respondwell to chemotherapy, but tumors that express low levels of the transcription factor OCT4 are associated with chemoresistance and poor prognosis. Hypoxia is known to induce drug resistance in TGCTs; however, the mechanistic basis for reduced expression of OCT4 and drug resistance is unclear. Here we show that hypoxia reduces OCT4 levels and inc...

2016
Salma Tammam Peter Malak Daphne Correa Oliver Rothfuss Azzazy Hassan M.E. Alf Lamprecht Klaus Schulze-Osthoff

Protein-based reprogramming of somatic cells is a non-genetic approach for the generation of induced pluripotent stem cells (iPSCs), whereby reprogramming factors, such as OCT4, SOX2, KLF4 and c-MYC, are delivered as functional proteins. The technique is considered safer than transgenic methods, but, unfortunately, most protein-based protocols provide very low reprogramming efficiencies. In thi...

Journal: :Oncology reports 2016
Jia-Jia Zhou Zhe Meng Yu Zhou Di Cheng Hui-Lin Ye Quan-Bo Zhou Xiao-Geng Deng Ru-Fu Chen

Hepatitis C virus (HCV) core protein plays an important role in the development of hepatocellular carcinoma. octamer-binding protein 4 (OCT4) is critically essential for the pluripotency and self-renewal of embryonic stem cells. Abnormal expression of OCT4 has been detected in several human solid tumors. However, the relationship between HCV core and OCT4 remains uncertain. In the present study...

Journal: :Zygote 2017
Atsushi Mitani Atsushi Fukuda Toshiyuki Miyashita Akihiro Umezawa Hidenori Akutsu

Pou5f1/Oct4 is a key transcription factor for the induction of pluripotency and totipotency in preimplantation mouse embryos. In mice, loss or gain of function experiments have demonstrated an important role for Oct4 in preimplantation and developmental ability. In this study, using mouse preimplantation embryos as a model for the evaluation of Oct4 function, we constructed Oct4 overexpression ...

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