首页> 外文期刊>Regulatory peptides. >Leptin and prolactin modulate the expression of SOCS-1 in association with interleukin-6 and tumor necrosis factor-alpha in mammary cells: a role in differentiated secretory epithelium.
【24h】

Leptin and prolactin modulate the expression of SOCS-1 in association with interleukin-6 and tumor necrosis factor-alpha in mammary cells: a role in differentiated secretory epithelium.

机译:瘦素和催乳素可调节SOCS-1与白细胞介素6和肿瘤坏死因子-α在乳腺细胞中的表达:在分化的分泌上皮细胞中的作用。

获取原文
获取原文并翻译 | 示例
           

摘要

Leptin and its receptors have been shown to be expressed in several tissues, suggesting that this protein might be effective not only at the CNS level but also peripherally. We have previously reported that leptin and its long form receptor are expressed in the mouse mammary epithelial cell line HC11. In this study, we report a specific relationship among leptin, prolactin (PRL), interleukin-6 (IL-6), and tumor necrosis-alpha (TNF-alpha) in the modulation of the suppressor of cytokine signaling 1 (SOCS-1). Furthermore, we show that leptin and PRL are able to effectively enhance SOCS-1 gene expression in the HC11 cell line. Finally, high concentrations of leptin (100 nM) and/or PRL significantly (p<0.05) reduce the inhibitory effect of IL-6 (10 and 100 ng/ml) and TNF-alpha (10 and 100 ng/ml) on beta-casein gene expression in HC11 cells transfected with pbetacCAT, a chimeric rat-beta casein gene promoter-cloramphenicol acetyl transferase (CAT) gene construct. These results provide evidence that leptin may be an important mediator in regulating mammary gland growth and development and that this role may be related to the immune factors that are involved in inflammation.
机译:瘦蛋白及其受体已显示在几种组织中表达,表明该蛋白可能不仅在中枢神经系统水平有效,而且在外周也可能有效。我们以前曾报道过,瘦素及其长型受体在小鼠乳腺上皮细胞系HC11中表达。在这项研究中,我们报告了瘦素,催乳激素(PRL),白介素6(IL-6)和肿瘤坏死-α(TNF-α)之间在调节细胞因子信号传导1(SOCS-1)抑制剂方面的特定关系)。此外,我们表明瘦素和PRL能够有效增强HC11细胞系中的SOCS-1基因表达。最后,高浓度的瘦素(100 nM)和/或PRL显着(p <0.05)降低了IL-6(10和100 ng / ml)和TNF-alpha(10和100 ng / ml)对β的抑制作用-酪蛋白基因在pbetacCAT转染的HC11细胞中表达,pbetacCAT是一种嵌合的大鼠β酪蛋白基因启动子-氯苯甲酚乙酰转移酶(CAT)基因构建体。这些结果提供了证据,表明瘦素可能是调节乳腺生长和发育的重要介质,并且这种作用可能与炎症中涉及的免疫因子有关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号