Differentiation of seminiferous tubule-associated stem cells into leydig cell and myoid cell lineages

Differentiation of seminiferous tubule-associated stem cells into leydig cell and myoid cell lineages
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生精小管相关干细胞分化为间质细胞和肌样细胞谱系

DOI:
10.1016/j.mce.2021.111179
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发表时间:
2021-01
期刊:
Mol Cell Endocrinol.
影响因子:
--
通讯作者:
Haolin Chen
Haolin Chen
中科院分区:
其他
文献类型:
--
作者:
Xingxing Zhao;Xin Wen;Minpeng Ji;Xiaoju Guan;Panpan Chen;Xinrui Hao;Fenfen Chen;Yue Hu;Ping Duan;Ren-Shan Ge;Haolin Chen

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在大鼠睾丸生精小管中发现了管周间质干细胞。然而,到目前为止,还没有在成人睾丸中发现管周肌样细胞的干细胞。在本研究中,我们测试的假设,管周SLC是多能的,能够形成Leydig或肌样细胞。使用培养的小管,我们发现,在PDGFAA和黄体生成素的存在下,SLC成为睾丸激素产生的Leydig细胞,而在PDGFBB和TGFB的存在下,细胞形成α-平滑肌肌动蛋白表达肌样细胞。分离的CD 90 + SLC的培养也证实了这种多能性。这些结果表明,这些肌样层外的干细胞是多能的,并产生Leydig或肌样细胞,这取决于诱导因素。这些细胞可能作为一个共同的前体群体,以维持睾丸间质细胞和肌样细胞群体在成年睾丸中的稳态。
Peritubular stem Leydig cells (SLCs) have been identified from rat testicular seminiferous tubules. However, no stem cells for peritubular myoid cells have been reported in the adult testis so far. In the present study, we tested the hypothesis that the peritubular SLCs are multipotent and able to form either Leydig or myoid cells. Using cultured tubules, we show that in the presence of PDGFAA and luteinizing hormone, SLCs became testosterone-producing Leydig cells, while in the presence of PDGFBB and TGFB, the cells formed α-smooth muscle actin-expressing myoid cells. This multipotency was also confirmed by culture of isolated CD90+SLCs. These results suggest that these stem cells outside the myoid layer are multipotent and give rise to either Leydig or myoid cells, depending on the inducing factors. These cells may serve as a common precursor population for maintaining homeostasis of both Leydig and myoid cell populations in the adult testis.
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