Progenitor cells of the testosterone-producing Leydig cells revealed.

Progenitor cells of the testosterone-producing Leydig cells revealed.
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DOI:
10.1083/jcb.200409107
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发表时间:
2004-12-06
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Müller D
Müller D
中科院分区:
其他
文献类型:
--
作者:
Davidoff MS;Middendorff R;Enikolopov G;Riethmacher D;Holstein AF;Müller D

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负责产生雄性激素睾酮的细胞,睾丸的Leydig细胞,是具有神经内分泌特征的有丝分裂后细胞。它们在个体发育和再生过程中的起源仍然是一个有争议的问题。在这里,我们表明,睾丸血管细胞,即血管平滑肌细胞和周细胞,是间质细胞的祖细胞。类似于神经系统的干细胞,Leydig细胞祖细胞的特征在于巢蛋白的表达。使用体内模型诱导和监测一个完全新的Leydig细胞群在成年大鼠的同步代,我们证明了血管祖细胞的特异性增殖和随后的转分化成类固醇Leydig细胞,此外,迅速获得神经元和神经胶质的属性。这些发现也代表了个体发育Leydig细胞形成和人类睾丸,提供了进一步的证据表明血管的细胞成分可以充当器官发生和修复的祖细胞。
The cells responsible for production of the male sex hormone testosterone, the Leydig cells of the testis, are post-mitotic cells with neuroendocrine characteristics. Their origin during ontogeny and regeneration processes is still a matter of debate. Here, we show that cells of testicular blood vessels, namely vascular smooth muscle cells and pericytes, are the progenitors of Leydig cells. Resembling stem cells of the nervous system, the Leydig cell progenitors are characterized by the expression of nestin. Using an in vivo model to induce and monitor the synchronized generation of a completely new Leydig cell population in adult rats, we demonstrate specific proliferation of vascular progenitors and their subsequent transdifferentiation into steroidogenic Leydig cells which, in addition, rapidly acquire neuronal and glial properties. These findings, shown to be representative also for ontogenetic Leydig cell formation and for the human testis, provide further evidence that cellular components of blood vessels can act as progenitor cells for organogenesis and repair.
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影响因子: 3.6
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