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克洛德罗纳酸对马的外周血液中的基因表达的影响
Callie V Wilcox1, Heather K Knych2,3, Scott A Katzman4
1Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, California, USA.
Journal of veterinary pharmacology and therapeutics
|January 10, 2024
概括
由于潜在的止痛作用,禁止在马中使用双酸盐. 这项研究调查了克洛德罗纳酸盐.
科学领域:
- 马类药理学和毒理学
- 分子生物学和基因组学
- 发现生物标志物的发现.
背景情况:
- 双酸盐,如克洛德罗纳特和提卢德罗纳特,已获得FDA批准用于马类,但由于疼痛缓解和骨愈合的担忧,禁止在比赛中使用.
- 血液中的短检测窗口挑战了目前对双酸盐的药物测试可靠性.
- 了解克洛德罗纳酸对马的分子作用对于有效调节至关重要.
研究的目的:
- 为了研究克洛德罗纳特在炼纯种马的分子效应.
- 为了识别潜在的生物标志物来检测随着时间的推移使用克洛德罗纳特.
- 通过检查基因表达变化来评估当前药物测试方法的可靠性.
主要方法:
- 七匹纯血统的马接受了肌肉内克洛德罗纳特,而四匹则接受了盐水.
- 周围血液单核细胞 (PBMC) 在施用后的多个时间点收集.
- 进行了mRNA测序和途径分析,以及针对特定基因的向RT-qPCR (CTSK,ACP5).
主要成果:
- 没有单个转录被差异地表达,但途径分析显示p38 MAPK和Ras途径上调,在clodronate后的第1天,cadherin信号下调.
- 在向性方法中,甲素K (CTSK) 和5型酸酶 (ACP5) 没有显著差异.
- 观察到时间对ACP5和CTSK的基因表达有显著的影响,这表明它们作为时间依赖生物标志物的潜力.
结论:
- 施用克洛德罗纳特会诱导马匹特定分子通路的短暂变化.
- 随着时间的推移,CTSK和ACP5基因表达需要进一步研究,作为检测克洛德罗纳特的潜在生物标志物.
- 这些发现有助于理解双酸的药理动力学,并改善马体育中的反兴奋剂策略.
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