Hormonal stimulation of the recovery of spermatogenesis following chemo‐ or radiotherapy

Hormonal stimulation of the recovery of spermatogenesis following chemo‐ or radiotherapy
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化疗或放疗后恢复精子发生的激素刺激

DOI:
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发表时间:
1998
期刊:
Acta Pathologica, Microbiologica et Immunologica Scandinavica (APMIS)
影响因子:
--
通讯作者:
M. Meistrich
M. Meistrich
中科院分区:
--
文献类型:
--
作者:
M. Meistrich

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放射和化疗药物会使啮齿动物和人类的精子数量长期下降。此前,有三种方法在实验动物身上取得了一定的成功,可以预防或逆转这种毒性。这些方法包括抑制精子发生的激素预处理、刺激干细胞数量和补充睾酮。特殊激素治疗逆转长期无精子症的能力的另一种基本原理在本综述中提出。在许多情况下,即使茎精原细胞在毒性损伤中存活下来,也会发生长时间无精子症,但这些精原细胞分化产生精子失败。在大鼠中,阻滞似乎出现在A精原细胞的分化。用睾酮或GnRH激动剂进行激素治疗,抑制睾丸内睾酮水平,缓解这种阻滞并导致分化细胞的产生。当激素治疗停止,分化细胞继续产生,成熟精子产生,生育能力恢复。如果类似的机制能在人类身上得到证实,那么那些因睾丸癌和其他癌症治疗而导致不育的男性的生育能力可能会得到改善。
Radiation and chemotherapeutic drugs produce prolonged depression of sperm counts in rodents and humans. Previously, three approaches have been developed in experimental animals that have had some success in preventing or reversing this toxicity. These approaches included pretreatment with hormones that suppress spermatogenesis, stimulation of stem cell number, and supplementation with testosterone. A different rationale for the ability of particular hormonal treatments to reverse prolonged azoospermia is presented in this review. In many cases prolonged azoospermia occurs even though the stem spermatogonia survive the toxic insult, but the differentiation of these spermatogonia to produce sperm fails. In the rat, the block appears to be at the differentiation of the A spermatogonia. Hormone treatments with testosterone or with GnRH agonists, which suppress intratesticular testosterone levels, relieve this block and result in the production of differentiating cells. When the hormone treatment is stopped the production of differentiating cells continues, mature sperm are produced, and fertility is restored. If a similar mechanism can be demonstrated to hold in humans, the fertility of men who have been rendered infertile by treatments for testicular and other cancers could be improved.
促性腺激素释放激素拮抗剂和抗雄激素抑制小鼠精子发生:无法防止辐射引起的性腺损伤。
DOI: 10.1210/endo.137.3.8603608
发表时间: 1996
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影响因子: 4.8
作者:
Kangasniemi,M;Dodge,K;Pemberton,AE;Huhtaniemi,I;Meistrich,ML
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环磷酰胺诱导的大鼠干精原细胞失活的激素保护。
DOI: --
发表时间: 1995
期刊: Journal of andrology.
影响因子: --
作者:
Meistrich,ML;Parchuri,N;Wilson,G;Kurdoglu,B;Kangasniemi,M
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正常男性中有效的促性腺激素释放激素激动剂对睾丸类固醇生成和精子发生的可逆抑制:一种开发男性避孕药的方法。
DOI: 10.1056/nejm198109173051203
发表时间: 1981
期刊: The New England journal of medicine
影响因子: --
作者:
Linde,R;Doelle,GC;Alexander,N;Kirchner,F;Vale,W;Rivier,J;Rabin,D
通讯作者: Rabin,D
黄体生成素释放激素类似物对 X 辐射引起的大鼠睾丸损伤的保护作用。
DOI: 10.1073/pnas.84.3.851
发表时间: 1987
影响因子: 11.1
作者:
Schally,AV;Paz-Bouza,JI;Schlosser,JV;Karashima,T;Debeljuk,L;Gandle,B;Sampson,M
通讯作者: Sampson,M
DOI: 10.1002/j.1939-4640.1997.tb01879.x
发表时间: 1997-01
影响因子: --
作者:
M. Meistrich;M. Kangasniemi
通讯作者: M. Meistrich;M. Kangasniemi