Molecular dissection of the male germ cell lineage identifies putative spermatogonial stem cells in rhesus macaques.

Molecular dissection of the male germ cell lineage identifies putative spermatogonial stem cells in rhesus macaques.
复制标题

DOI:
10.1093/humrep/dep073
复制
发表时间:
2009-07
期刊:
Human reproduction (Oxford, England)
影响因子:
--
通讯作者:
Orwig KE
Orwig KE
中科院分区:
其他
文献类型:
--
作者:
Hermann BP;Sukhwani M;Simorangkir DR;Chu T;Plant TM;Orwig KE

文献摘要

参考文献

被引文献

相似文献

非人灵长类动物睾丸中的精原干细胞(SSC)池定义不清。为了开始描述恒河猴睾丸中的精原干细胞,我们采用了荧光激活细胞分选(FACS)、异种移植生物测定和免疫组织化学方法,并将我们的发现与经典的生殖细胞核形态描述(即Adark和Apale精原细胞)相关联。FACS分析鉴定了恒河猴睾丸细胞的THY-1+部分,其富含共有SSC标志物(即PLZF、GFRα1),并在移植至裸鼠睾丸后表现出增强的定殖活性。我们观察到从小鼠到猴的精原细胞标志物[PLZF、GFRα1、神经生成素3(NGN 3)、cKIT]的大量保守性。假设分子特征与功能相关,推定的SSC(THY-1+、PLZF+、GFRα1+、NGN 3 +/−、cKIT−)库包括大多数Adark和Apale,并且灵长类动物中的SSC比啮齿类动物中的SSC大得多。值得注意的是,大多数Adark和Apale具有共同的分子表型,分别考虑其不同的功能分类为储备干细胞和更新干细胞。NGN 3在Adark中不存在,但在一些Apale中表达,可能标志着未分化(cKIT-)精原细胞向分化(cKIT+)精原细胞的转变。最后,灵长类动物中的过渡扩增祖精原细胞库(PLZF+、GFRα1+、NGN 3+、cKIT+/-)小于啮齿类动物。这些结果提供了深入的灵长类精原细胞,包括精原干细胞的分子特征的分析,并为未来的研究奠定了基础,探讨灵长类精子发生过程中的精原细胞更新,克隆扩张和分化的动力学。
The spermatogonial stem cell (SSC) pool in the testes of non-human primates is poorly defined. To begin characterizing SSCs in rhesus macaque testes, we employed fluorescence-activated cell sorting (FACS), a xenotransplant bioassay and immunohistochemical methods and correlated our findings with classical descriptions of germ cell nuclear morphology (i.e. Adark and Apale spermatogonia). FACS analysis identified a THY-1+ fraction of rhesus testis cells that was enriched for consensus SSC markers (i.e. PLZF, GFRα1) and exhibited enhanced colonizing activity upon transplantation to nude mouse testes. We observed a substantial conservation of spermatogonial markers from mice to monkeys [PLZF, GFRα1, Neurogenin 3 (NGN3), cKIT]. Assuming that molecular characteristics correlate with function, the pool of putative SSCs (THY-1+, PLZF+, GFRα1+, NGN3+/−, cKIT−) comprises most Adark and Apale and is considerably larger in primates than in rodents. It is noteworthy that the majority of Adark and Apale share a common molecular phenotype, considering their distinct functional classifications as reserve and renewing stem cells, respectively. NGN3 is absent from Adark, but is expressed by some Apale and may mark the transition from undifferentiated (cKIT−) to differentiating (cKIT+) spermatogonia. Finally, the pool of transit-amplifying progenitor spermatogonia (PLZF+, GFRα1+, NGN3+, cKIT+/−) is smaller in primates than in rodents. These results provide an in-depth analysis of molecular characteristics of primate spermatogonia, including SSCs, and lay a foundation for future studies investigating the kinetics of spermatogonial renewal, clonal expansion and differentiation during primate spermatogenesis.
大鼠中多能血态干细胞上的Thy-1抗原的证明。
DOI: 10.1084/jem.148.5.1351
发表时间: 1978-11-01
期刊: The Journal of experimental medicine
影响因子: --
作者:
Goldschneider I;Gordon LK;Morris RJ
通讯作者: Morris RJ
DOI: 10.1095/biolreprod52.1.8
发表时间: 1995-01-01
影响因子: 3.6
作者:
DYM, M;JIA, MC;RAVINDRANATH, N
通讯作者: RAVINDRANATH, N
DOI: 10.1073/pnas.89.7.2804
发表时间: 1992-04-01
影响因子: 11.1
作者:
BAUM, CM;WEISSMAN, IL;PEAULT, B
通讯作者: PEAULT, B
DOI: 10.1172/jci24189
发表时间: 2005-07-01
影响因子: 15.9
作者:
Fujita, K;Ohta, H;Okuyama, A
通讯作者: Okuyama, A
DOI: 10.1002/aja.1001360204
发表时间: 1973-01-01
影响因子: --
作者:
CLERMONT, Y;ANTAR, M
通讯作者: ANTAR, M