Inhibition of peripubertal sheep mammary gland development by cysteamine through reducing progesterone and growth factor production
文献类型: 外文期刊
第一作者: Zhao, Yong
作者: Zhao, Yong;Liu, Xinqi;Zhang, Pengfei;Zhao, Yong;Feng, Yanni;Li, Lan;Zhang, Pengfei;Cui, Liantao;Chu, Meiqiang;Shen, Wei;Feng, Yanni;Li, Lan;Cui, Liantao;Chu, Meiqiang;Shen, Wei;Min, Lingjiang;Zhang, Hongfu;Kou, Xin
作者机构:
关键词: Mammary gland;Development;Inhibition;Cysteamine;Progesterone;Growth factors
期刊名称:THERIOGENOLOGY ( 影响因子:2.74; 五年影响因子:2.93 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Cysteamine has been used for treating cystinosis for many years, and furthermore it has also been used as a therapeutic agent for different diseases including Huntington's disease, Parkinson's disease (PD), nonalcoholic fatty liver disease, malaria, cancer, and others. Although cysteamine has many potential applications, its use may also be problematic. The effects of low doses of cysteamine on the reproductive system, especially the mammary glands are currently unknown. In the current investigation, low dose (10 mg/kg BW/day) of cysteamine did not affect sheep body weight gain or organ index of the liver, spleen, or heart; it did, however, increase the levels of blood lymphocytes, monocytes, and platelets. Most interestingly, it inhibited mammary gland development after 2 or 5 months of treatment by reducing the organ index and the number of mammary gland ducts. Plasma growth hormone and estradiol remained unchanged; however, plasma progesterone levels and the protein level of HSD3 beta 1 in sheep ovaries were decreased by cysteamine. In addition to steroid hormones, growth factors produced in the mammary glands also play crucial roles in mammary gland development. Results showed that protein levels of HGF, GHR, and IGF1R were decreased after 5 months of cysteamine treatment. These findings together suggest that progesterone and local growth factors in mammary glands might be involved in cysteamine initiated inhibition of pubertal ovine mammary gland development. Furthermore, it may lead to a reduction in fertility. Therefore, cysteamine should be used with great caution until its actions have been further investigated and its limitations overcome. (C) 2016 Elsevier Inc. All rights reserved.
分类号: Q95
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