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减少的核酸减少酶RRM2亚单元表达增加了木质乳母的DNA损伤和线粒体功能障碍
Majid Shakeri1, Janghan Choi1, Caitlin Harris1
1USDA-ARS, U.S. National Poultry Research Center, Athens, GA.
American journal of veterinary research
|February 21, 2024
概括
在严重的木质乳腺 (WB) 肌性病症中,核酸还原酶子单元M2 (RRM2) 的活性和表达减少. 这些发现表明,RRM2介导的线粒体功能障碍有助于的WB肌病.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 动物科学动物科学
背景情况:
- 严重的木质乳房 (WB) 是一种影响肉的肌肉病,其特点是肌肉异常.
- 特定酶和细胞过程在WB发育中的作用仍然不完全理解.
研究的目的:
- 为了研究肉的正常和严重的木状乳腺 (WB) 肌肉中的核核酸还原酶子单元M2 (RRM2) 的表达和活性.
- 探索RRM2和其他与WB肌肉完整性和新陈代谢相关的分子标记物之间的潜在关联.
主要方法:
- 使用定量PCR进行基因表达分析.
- 使用商业ELISA/测试套件进行酶活性测定.
- 分析了40只8周大的雄性罗斯-708肉的肌肉组织,比较了正常和WB样本.
主要成果:
- 在WB肌肉中,RRM2活性和表达显著降低 (分别P = .0002和P = .05).
- 在WB中,基甲基比兰合成酶表达也降低了 (P = .002),而纤维化和代谢失调的标志物则表现出增加的趋势.
- WB肌肉表现出线粒体功能障碍和组织损伤的指标增加,包括高水平的同类半素,甘油三和DNA损伤,以及ATPase活性下降.
结论:
- 减少RRM2活动和表达,再加上线粒体功能障碍和DNA损伤的证据,表明RRM2介导异常在WB肌肉病变的发病过程中起着重要作用.
- 这些发现突出了潜在的分子标,以了解和潜在地管理家禽的木质乳房状况.
关键词:
造成的DNA损伤是DNA损伤.肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉肉线粒体中的线粒体.核酸减少酶酶的核酸减少酶是一种酶.伍迪的乳房是木质的更多相关视频
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