نتایج جستجو برای: sertoli cells

تعداد نتایج: 1384697  

Babak Qasemi-Panahi Mahmood Ahmadi Hamedani Mansoureh Movahedin Mohammad Hassan yousefi Parviz Tajik, Reza Narenji Sani Shiva Shafiei

The complex process of spermatogenesis is regulated by various factors. Studies on spermatogonial stem cells (SCCs) have provided very important tool to improve herd genetic and different field. 0.2 to 0.3 percent of total cells of seminiferous tubules is consist of spermatogonial stem cells. To investigate and biomanipulation of these cells, proliferation and viability rate of cells should be ...

Journal: :The Journal of Cell Biology 1985
M A Hadley S W Byers C A Suárez-Quian H K Kleinman M Dym

Sertoli cell preparations isolated from 10-day-old rats were cultured on three different substrates: plastic, a matrix deposited by co-culture of Sertoli and peritubular myoid cells, and a reconstituted basement membrane gel from the EHS tumor. When grown on plastic, Sertoli cells formed a squamous monolayer that did not retain contaminating germ cells. Grown on the matrix deposited by Sertoli-...

Journal: :Indian journal of experimental biology 2016
Fenxi Zhang Ming Lu Hengxing Liu Tongming Ren Yingying Miao Jingjing Wang

Bone marrow-derived mesenchymal stem cells (BMSCs) are a major source for cell transplantation. The proliferative ability of BMSCs is an important determinant of the efficiency of transplant therapy. Sertoli cells are "nurse" cells for development of sperm cells. Our recent study showed that Sertoli cells promoted proliferation of human umbilical cord mesenchymal stem cells (hUCMSCs) in co-cult...

Journal: :Biology of reproduction 2001
S A McCoard D D Lunstra T H Wise J J Ford

The positive relationship between Sertoli cell number and testicular size emphasizes the importance of determining factors involved in the regulation of the Sertoli cell population. Based on data from other species and indirect evidence in the boar, it is generally accepted that porcine Sertoli cells proliferate rapidly throughout the early postnatal period. However, direct evaluation of Sertol...

2017
Liping Wen Qingqing Yuan Min Sun Minghui Niu Hong Wang Hongyong Fu Fan Zhou Chencheng Yao Xiaobo Wang Zheng Li Zuping He

Sertoli cells are required for normal spermatogenesis and they can be reprogrammed to other types of functional cells. However, the number of primary Sertoli cells is rare and human Sertoli cell line is unavailable. In this study, we have for the first time reported a stable human Sertoli cell line, namely hS1 cells, by overexpression of human telomerase. The hS1 cells expressed a number of hal...

Journal: :veterinary research forum 2013
reza narenji sani parviz tajik mohammad hassan yousefi mansoureh movahedin babak qasemi-panahi

the complex process of spermatogenesis is regulated by various factors. studies on spermatogonial stem cells (sccs) have provided very important tool to improve herd genetic and different field. 0.2 to 0.3 percent of total cells of seminiferous tubules is consist of spermatogonial stem cells. to investigate and biomanipulation of these cells, proliferation and viability rate of cells should be ...

Journal: :Biology of reproduction 1992
M Rosselli M K Skinner

Testicular peritubular cells produce a paracrine factor termed PModS that has dramatic effects on Sertoli cell function in vitro. The current study was designed to examine the actions of PModS and hormones on Sertoli cell aromatase activity and plasminogen activator production at various stages of pubertal development. Sertoli cells were isolated from 10-, 20-, and 35-day-old rats (ages corresp...

2017
Hong Wang Qingqing Yuan Min Sun Minghui Niu Liping Wen Hongyong Fu Fan Zhou Zheng Chen Chencheng Yao Jingmei Hou Ruinan Shen Qisheng Lin Wenjie Liu Ruobing Jia Zheng Li Zuping He

Sertoli cells are essential for regulating normal spermatogenesis. However, the mechanisms underlying human Sertoli cell development remain largely elusive. Here we examined the function and signaling pathways of BMP6 in regulating human Sertoli cells. RT-PCR, immunocytochemistry and Western blots revealed that BMP6 and its multiple receptors were expressed in human Sertoli cells. CCK-8 and EDU...

Journal: :Molecular human reproduction 2010
K Gassei J Ehmcke M A Wood W H Walker S Schlatt

Sertoli cells undergo a maturation process during post-natal testicular development that leads to the adult-type Sertoli cell, which is required for spermatogenesis. Understanding Sertoli cell maturation is therefore necessary to gain insight into the underlying causes of impaired spermatogenesis and male infertility. The present study characterized the cellular and molecular differentiation of...

2016
Chencheng Yao Min Sun Qingqing Yuan Minghui Niu Zheng Chen Jingmei Hou Hong Wang Liping Wen Yun Liu Zheng Li Zuping He

Sertoli cells play critical roles in regulating spermatogenesis and they can be reprogrammed to the cells of other lineages, highlighting that they have significant applications in reproductive and regenerative medicine. The fate determinations of Sertoli cells are regulated precisely by epigenetic factors. However, the expression, roles, and targets of microRNA (miRNA) in human Sertoli cells r...

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