نتایج جستجو برای: spermatogonial transplantation

تعداد نتایج: 144019  

ژورنال: Anatomical Sciences Journal 2012
Bakhtiyari, Mehrdad, Hadjighassem, Mahmoud Reza, Joghataei, Mohammad Taghi, Slahi, Neda, Asadi, Mohammad Hossein, Ayyoubiyan, Mahmoud, Koruji , Seyyed Morteza,

Purpose: To investigate of the effects of a poly L-lactic acid (PLLA) nanofiber scaffold on proliferation of frozen-thawed neonate mouse spermatogonial stem cells.Materials and Methods: Spermatogonial cells were isolated from neonatal 3-6-day-old NMRI mice testes by two steps enzymatic digestion and differential plating. The isolated spermatogonial cells were divided into four culture groups: 1...

2012
Naoki Iwamori Tokuko Iwamori Martin M. Matzuk

Stem cells have a potential of gene therapy for regenerative medicine. Among various stem cells, spermatogonial stem cells have a unique characteristic in which neighboring cells can be connected by intercellular bridges. However, the roles of intercellular bridges for stem cell self-renewal, differentiation, and proliferation remain to be elucidated. Here, we show not only the characteristics ...

2013
Reza Narenji Sani Parviz Tajik Mohammad Hassan Yousefi Mansoureh Movahedin Babak Qasemi-Panahi Shiva Shafiei Mahmood Ahmadi Hamedani

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 ...

1999
TAKASHI SHINOHARA MARY R. AVARBOCK RALPH L. BRINSTER

Although spermatogenesis is essential for reproduction, little is known about spermatogonial stem cells. These cells provide the basis for spermatogenesis throughout adult life by undergoing self-renewal and by providing progeny that differentiate into spermatozoa. A major impediment to our understanding of the biology of these stem cells is the inability to distinguish them from spermatogonia ...

2015
Xing-Xing Mei Jian Wang Ji Wu

Spermatogonial stem cells (SSCs), the stem cells responsible for male fertility, are one of a small number of cells with the abilities of both self-renewal and generation of large numbers of haploid cells. Technology improvements, most importantly, transplantation assays and in vitro culture systems have greatly expanded our understanding of SSC self-renewal and differentiation. Many important ...

2015
Takuya Sato Tetsushi Sakuma Tetsuhiro Yokonishi Kumiko Katagiri Satoshi Kamimura Narumi Ogonuki Atsuo Ogura Takashi Yamamoto Takehiko Ogawa

Mouse spermatogonial stem cells (SSCs) can be cultured for multiplication and maintained for long periods while preserving their spermatogenic ability. Although the cultured SSCs, named germline stem (GS) cells, are targets of genome modification, this process remains technically difficult. In the present study, we tested TALEN and double-nicking CRISPR/Cas9 on GS cells, targeting Rosa26 and St...

Journal: :Human reproduction 2010
Liang Ning Ellen Goossens Mieke Geens Dorien Van Saen Ivan Van Riet Dalin He Herman Tournaye

BACKGROUND The aim of this study was to explore the plasticity and transdifferentiation potential of murine spermatogonial stem cells (SSCs) into hematopoietic cells. METHODS GFP(+)CD49f(+)H-2K(b-) SSCs of male donor mice were isolated and injected into the bone marrow (BM) of Busulfan-treated GFP(-) female mice. Twelve weeks post-transplantation, the recipients were sacrificed and their BM, ...

2016
Aya Uchida Yoshiakira Kanai

This article contains the data related to the research article "in vivo dynamics of GFRα1-positive spermatogonia stimulated by GDNF signals using a bead transplantation assay" (Uchida et al., 2016) [1]. A novel transplantation assay of growth factor-soaked beads into the mammalian testicular interstitium was developed, in order to examine the effects of various soluble factors on in vivo dynami...

Journal: :Asian journal of andrology 2013
Ellen Goossens Herman Tournaye

S permatogonial stem cell (SSC) transplantation is a promising technique to circumvent sterility in prepubertal boys undergoing gonadotoxic treatments. While the cryopreservation of spermatogonial stem cells is being introduced in clinical practices worldwide, a lot of unanswered questions remain regarding their eventual transplantation. In this paper autologous and allogeneic SSC transplantati...

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