中国畜牧兽医 ›› 2021, Vol. 48 ›› Issue (7): 2324-2332.doi: 10.16431/j.cnki.1671-7236.2021.07.006

• 生物技术 • 上一篇    下一篇

OCX-32基因表达载体构建及其对鸡子宫上皮细胞Ca2+浓度和脂质指标的影响

廖朝美1, 吴磊1, 游敏芳1, 谭光辉1, 李杰章1, 李万贵2, 张依裕1   

  1. 1. 贵州大学动物科学学院, 高原山地动物遗传育种与繁殖教育部重点实验室, 贵阳 550025;
    2. 六盘水市草地工作站, 六盘水 553000
  • 修回日期:2020-11-02 出版日期:2021-07-20 发布日期:2021-07-15
  • 通讯作者: 张依裕 E-mail:zyy8yyc@163.com
  • 作者简介:廖朝美(1997-),女,贵州黄平人,硕士生,研究方向:动物遗传育种与繁殖,E-mail:3285438093@qq.com
  • 基金资助:
    贵州省科技合作计划项目(黔科合LH字〔2016〕7454号)

Construction of OCX-32 Gene Expression Vector and Its Effect on Ca2+ Concentration Lipid Indexes of Chicken Uterine Epithelial Cells

LIAO Chaomei1, WU Lei1, YOU Minfang1, TAN Guanghui1, LI Jiezhang1, LI Wangui2, ZHANG Yiyu1   

  1. 1. Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang 550025, China;
    2. Liupanshui City Grassland Workstation, Liupanshui 553000, China
  • Revised:2020-11-02 Online:2021-07-20 Published:2021-07-15

摘要: 为探究卵黄蛋白原-32(ovocalyxin-32,OCX-32)基因过表达与鸡子宫上皮细胞Ca2+含量和脂质指标之间的关联性,本研究采用Ⅳ型胶原酶法分离培养长顺绿壳蛋鸡子宫上皮细胞,构建pcDNA3.1(+)+OCX-32+Flag表达载体并转染子宫上皮细胞,测定OCX-32基因过表达量、Ca2+浓度和脂质指标并进行相关性分析。结果显示,试验组的总胆固醇(TCHO)浓度显著高于对照组(P<0.05),对照组的Ca2+浓度显著高于试验组(P<0.05)。OCX-32基因过表达量与Ca2+浓度呈显著负相关关系(P<0.05),与甘油三酯(TG)浓度呈显著正相关关系(P<0.05),与TCHO浓度呈极显著负相关关系(P<0.01),TCHO浓度与TG浓度呈极显著负相关关系(P<0.01),研究结果揭示了OCX-32基因过表达能够调控鸡子宫上皮细胞的Ca2+含量和脂质的合成转运,为深入阐释鸡子宫上皮细胞中脂质和钙分泌的调控机制提供试验基础和数据支持。

关键词: OCX-32基因; 长顺绿壳蛋鸡; 子宫上皮细胞; Ca2+; 脂质指标

Abstract: In order to explore the relationship between ovocalyxin-32 (OCX-32) gene overexpression and Ca2+ concentration and lipid indexes of chicken uterine epithelial cells.The Changshun Green-eggshell chicken uterine epithelial cells were isolated and cultured by collagenase Ⅳ method.The expression vector pcDNA3.1(+)+OCX-32+Flag was constructed by homologous recombination method and transfected into uterine epithelial cells.The overexpression of OCX-32 gene,the concentration of Ca2+ and the indexes of lipid were determined and the correlation was analyzed.The results showed that the concentration of total cholesterol (TCHO) in the experimental group was significantly higher than that in the control group (P<0.05),and the concentration of Ca2+ in the control group was significantly higher than that in the experimental group (P<0.05).The OCX-32 gene overexpression was negatively correlated with Ca2+ concentration (P<0.05),and significant positive correlation with triglyceride (TG) concentration (P<0.05),and extremely significant negative correlated with TCHO concentration (P<0.01).Meanwhile,TCHO concentration was extremely significant negative correlated with TG concentration (P<0.01).The results revealed that overexpression of OCX-32 gene could regulate Ca2+ concentration and lipid synthesis and transport in chicken uterine epithelial cells.The results of this study provided experimental basis and data support for further elucidating the regulatory mechanism of lipid and calcium secretion in chicken uterine epithelial cells.

Key words: OCX-32 gene; Changshun Green-eggshell chicken; uterine epithelial cells; Ca2+; lipid indexes

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