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Leptin对奶牛乳腺上皮细胞主要乳蛋白基因表达的影响 被引量:2

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摘要 本试验旨在研究不同处理浓度Leptin对奶牛乳腺上皮细胞中主要乳蛋白基因表达的影响。分别在有催乳素(PRL)(1μg/mL,+)和无PRL(0μg/mL,-)条件下进行,均以无Leptin组为对照组,10、100、1 000 ng/mLLeptin组为处理组。采用荧光定量PCR技术测定奶牛乳腺细胞中α-酪蛋白(α-CN)、β-酪蛋白(β-CN)和β-乳球蛋白(β-LGB)的基因表达。结果表明:无PRL条件下,Leptin未促进、甚至抑制奶牛乳腺上皮细胞中α-CN和β-CN基因的表达;有PRL条件下,Leptin极显著促进二者表达(P<0.001),以100 ng/mL处理组效果最显著;无论有、无PRL,Leptin均促进β-LGB基因的表达,但有PRL条件下,1 000 ng/mL处理组显著抑制β-LGB基因表达(P<0.001)。结果显示,有PRL条件下,Leptin促进奶牛乳腺上皮细胞主要乳蛋白基因的表达。
出处 《中国畜牧杂志》 CAS 北大核心 2013年第15期58-61,共4页 Chinese Journal of Animal Science
基金 国家自然科学基金(31060136) 内蒙古农牧业科学院青年创新基金
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