miRNome 乳制母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳母乳
Alessandro Benedetto1, Nunzia Giaccio1, Maddalena Arigoni2
1Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d'Aosta, Via Bologna 148, 10154 Torino, Italy.
International journal of molecular sciences
|March 27, 2025
概括
在牛奶中检测重组牛体热素 (rbST) 是一个挑战. 在牛奶细胞外囊泡中发现的一种新型非侵入性生物标志物bta-miR-10167-3p显示,它有望在奶牛中识别rbST使用.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 生物技术是生物技术.
- 分子生物学分子生物学
背景情况:
- 再组合牛体内激素 (rbST) 模仿内源性牛体内激素 (bST),但其在奶牛中的使用在欧洲被禁止.
- 由于氨基酸序列相同,当前的检测方法,如LC-MS/MS,面临着区分rbST与bST的挑战.
- 为了可靠的rbST查,需要使用生物标志物的间接检测策略.
研究的目的:
- 在牛奶细胞外囊泡 (EVs) 中识别非编码RNA生物标记物,以检测奶牛的rbST注射.
- 描述与rbST治疗相关的microRNA (miRNA) 配置文件.
- 为了验证潜在的miRNA生物标志物用于rbST滥用检测.
主要方法:
- 未定位的转录组学被用来分析从rbST治疗和对照动物的牛奶EVs中的miRNAs.
- 测序确定了63个档案样本中的35个差异表达的miRNA.
- 在70个实地调查牛奶样本中,定量PCR (qPCR) 验证了miRNA表达.
主要成果:
- 测序分析揭示了35种差异表达的miRNAs.
- 一种特定的miRNA,bta-miR-10167-3p,在接受rbST治疗的奶牛的牛奶EV中显著上调.
- qPCR验证证实了bta-miR-10167-3p. 的上调.
结论:
- Bta-miR-10167-3p显示出作为乳牛中rbST检测的非侵入性生物标志物的潜力.
- 这种miRNA可以帮助开发新的查策略,以打击rbST的滥用.
- 这些发现支持使用牛奶EV miRNAs作为动物健康监测中的生物标志物.
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