代谢重编程调节了斑马鱼尾再生期间的组织激素乳酸化
Jorge Borbinha1, Raquel Lourenço1,2, Ana S Brandão1
1NOVA Medical School, NOVA University of Lisbon, Campo Mártires da Pátria 130, 1169-056 Lisbon, Portugal.
iScience
|February 20, 2026
概括
伤害触发了斑马鱼翅膀中激素乳酸的增加,这是一个对组织再生至关重要的代谢-表观遗传过程. 这种修改维持了细胞增殖和染色质的可访问性,提供了新的治疗途径.
科学领域:
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 代谢过程中的代谢.
背景情况:
- 组织再生涉及复杂的分子控制细胞酸盐过渡.
- 人们越来越认识到新陈代谢是这些过程中的关键调节者.
- 基因激素乳化,一种来自乳酸的表观遗传标记,影响基因表达.
研究的目的:
- 为了研究斑鱼尾再生中的基因素乳化作用.
- 为了确定在再生过程中基因素乳酸化的代谢调节.
- 阐明基因母乳化对再生基因表达程序的功能影响.
主要方法:
- 在再生斑马鱼中量化全球基因素乳化.
- 药理上抑制糖解和乳酸生产.
- 转录形状分析,以评估在改变乳化后的基因表达变化.
- 对细胞增殖和染色质可访问性标记物的分析.
主要成果:
- 在早期翅膀再生过程中,介质细胞和骨质细胞中,全球基因素乳化显著增加.
- 乳酸盐产量与基因素乳酸化水平直接相关.
- 抑制糖解和乳酸生产显著降低了基因素乳酸化.
- 减少乳化导致增殖和染色体重塑基因表达程序的下调.
结论:
- 受伤诱导的,以乳酸驱动的基因素乳化是斑马鱼早期翅膀再生的关键代谢-表观遗传调节器.
- 基斯乳化维持了染色质的可访问性,并促进了增殖转录,这对细胞可塑性和增殖至关重要.
- 这项研究提供了对再生代谢调节的机制性见解,表明了组织修复的潜在治疗点.
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