中国畜牧兽医 ›› 2026, Vol. 53 ›› Issue (1): 359-367.doi: 10.16431/j.cnki.1671-7236.2026.01.032

• 遗传繁育 • 上一篇    下一篇

过表达HMOX1基因对无量山乌骨鸡原代前脂肪细胞增殖的影响

杨平远(), 殴小嫚, 殴正淼, 陈粉粉()   

  1. 西南林业大学生物与食品工程学院,昆明 650224
  • 收稿日期:2025-05-23 出版日期:2026-01-05 发布日期:2025-12-26
  • 通讯作者: 陈粉粉 E-mail:2042097447@qq.com;ffchen03@sina.com
  • 作者简介:杨平远,E-mail:2042097447@qq.com
  • 基金资助:
    国家自然科学基金项目(32060739)

Effect of HMOX1 Gene Overexpression on the Proliferation of Primary Preadipocyte in Wuliangshan Black-boned Chicken

YANG Pingyuan(), OU Xiaoman, OU Zhengmiao, CHEN Fenfen()   

  1. College of Biological and Food Engineering,Southwest Forestry University,Kunming 650224,China
  • Received:2025-05-23 Online:2026-01-05 Published:2025-12-26
  • Contact: CHEN Fenfen E-mail:2042097447@qq.com;ffchen03@sina.com

摘要:

目的 构建无量山乌骨鸡血红素加氧酶1(heme oxygenase 1,HMOX1)基因过表达载体,并转染鸡原代前脂肪细胞,探究过表达HMOX1基因对鸡原代前脂肪细胞增殖的影响。 方法 取1日龄无量山乌骨鸡雏鸡皮下脂肪组织,提取总RNA并反转录成cDNA,扩增HMOX1基因CDS区,使用质粒pcDNA3.1-mRFP构建过表达载体pcDNA3.1-HMOX1-mRFP,并进行酶切和测序鉴定;通过转染试剂将pcDNA3.1-HMOX1过表达载体转染鸡原代前脂肪细胞中并检测过表达效率;利用CCK-8法检测细胞活力,流式细胞术检测细胞周期;利用实时荧光定量PCR和Western blotting检测增殖相关基因P21、CDK1、PCNA mRNA和蛋白表达量。 结果 酶切和测序结果表明,pcDNA3.1-HMOX1-mRFP过表达载体构建成功。实时荧光定量PCR和Western blotting检测结果显示,与对照组相比,转染pcDNA3.1-HMOX1-mRFP后细胞中HMOX1基因mRNA和蛋白表达量均极显著上调(P<0.01),表明鸡原代前脂肪细胞中成功过表达HMOX1。CCK-8检测结果显示,与对照组相比,转染12 h时过表达HMOX1组细胞活力显著上升(P<0.05),转染36和48 h时细胞活力极显著下降(P<0.01)。流式细胞术检测结果显示,与对照组相比,12 h时过表达HMOX1组S期的细胞数量极显著增加(P<0.01),G1期的细胞数量极显著降低(P<0.01);48 h时S期的细胞数量显著降低(P<0.05)。增殖相关基因检测结果显示,两组间细胞中P21、CDK1基因mRNA和蛋白表达量无显著差异(P>0.05);过表达HMOX1组细胞中PCNA基因mRNA和蛋白表达量均显著低于对照组(P<0.05)。 结论 本研究成功构建HMOX1基因过表达载体,转染无量山乌骨鸡原代前脂肪细胞后抑制了细胞增殖。试验结果可为进一步研究HMOX1对无量山乌骨鸡原代前脂肪细胞的分化作用提供理论指导。

关键词: 无量山乌骨鸡; HMOX1基因; 前脂肪细胞; 增殖

Abstract:

Objective This experiment aimed to construct an overexpression vector of heme oxygenase 1 (HMOX1) gene in Wuliangshan Black-boned chickens and transfect it into chicken primary preadipocytes, and investigate the effect of HMOX1 gene overexpression on the proliferation of chicken primary preadipocyte. Method Collect the subcutaneous fat tissue from 1-day-old chicks of Wuliangshan Black-boned chicken, extract total RNA and reverse transcribe it into cDNA, and amplify the CDS region of HMOX1 gene. The overexpression vector pcDNA3.1-HMOX1-mRFP was constructed using the plasmid pcDNA3.1-mRFP, followed by restriction enzyme digestion and sequencing for identification. The pcDNA3.1-HMOX1 overexpression vector was transfected into chicken primary preadipocytes by using transfection reagents, and the overexpression efficiency was detected. Cell viability was measured using CCK-8 method, and the cell cycle was analyzed by flow cytometry. Real-time quantitative PCR and Western blotting were used to detect the mRNA and protein expression levels of proliferation-related genes (P21, CDK1 and PCNA). Result Restriction enzyme digestion and sequencing indicated that the pcDNA3.1-HMOX1-mRFP overexpression vector was successfully constructed. Real-time quantitative PCR and Western blotting test results showed that, compared with control group, the mRNA and protein expression of HMOX1 gene in cells transfected with pcDNA3.1-HMOX1-mRFP were extremely significantly upregulated (P<0.01), demonstrated that HMOX1 was successfully overexpressed in chicken primary preadipocytes. CCK-8 assay results showed that compared with control group, the cell viability of HMOX1 overexpression group significantly increased at 12 hours after transfection (P<0.05), and decreased extremely significantly at 36 and 48 hours after transfection (P<0.01). The results of flow cytometry test showed that,compared with control group, the number of cells in the S phase in HMOX1 overexpression group increased extremely significantly at 12 hours (P<0.01), while the number of cells in the G1 phase decreased extremely significantly (P<0.01). The number of cells in the S phase at 48 hours was significantly reduced (P<0.05). Detection results of proliferation-related genes showed that there was no significant difference in the mRNA and protein expression of P21 and CDK1 genes in the cells between the two groups (P>0.05). The mRNA and protein expression of PCNA gene in overexpression group were significantly lower than those in control group (P<0.05). Conclusion The HMOX1 gene overexpression vector was successfully constructed. After transfection of the original preadipocytes of Wuliangshan Black-boned chicken, cell proliferation was inhibited. The experimental results could provide theoretical guidance for further study of the effect of HMXO1 on the differentiation of primary preadipocytes of Wuliangshan Black-boned chicken.

Key words: Wuliangshan Black-boned chicken; HMOX1 gene; preadipocyte; proliferation

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