在血液中循环的microRNAs126-5p,150-5p,214-5p和452-5p的水平在患有血类肉瘤的狗的脊髓切除术后下降
Janet A Grimes1, Jennifer M Schmiedt2
1Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA.
American journal of veterinary research
|November 25, 2025
概括
这项研究发现,四种微RNAs (miRNAs) 在手术后的表达下降了骨血类肉瘤在狗. 这些特定的miRNAs可能有助于开发用于犬血肉瘤的新诊断工具.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 膜血肉瘤是狗中常见且具有攻击性的癌症.
- 识别可靠的生物标志物用于早期诊断和监测脏血肉瘤至关重要.
- 微RNAs (miRNAs) 是小的非编码RNAs,在各种癌症中发挥着调节作用,包括血管肉瘤.
研究的目的:
- 为了研究在手术切除瘤 (脊髓切除术) 之前和之后患有脊髓血脉瘤的狗中特定血清微RNA (miRNA) 的差异表达.
- 为了确定脏血肉瘤的潜在miRNA生物标志物.
主要方法:
- 在手术前,手术后24-48小时和手术后10-30天的时间点收集了17只患有膜血栓瘤的狗的血清样本.
- 量化逆转录PCR (qRT-PCR) 用于测量八种选定的miRNAs (miR-126-5p,miR-150-5p,miR-203a-3p,miR-214-3p,miR-452-5p,miR-494-3p,miR-497-5p,miR-543) 和两个控制miRNAs (miR-16-5p,miR-93-5p) 的表达水平.
- 在不同时间点之间进行了差异表达式分析.
主要成果:
- 与手术前水平相比,microRNA-126-5p的表达在手术后的两个时间点都显著下降.
- 微RNA-150-5p和miR-214-3p在术前和术后早期之间表达的减少,但在晚期表达的表达没有减少.
- 与手术前水平相比,microRNA-452-5p的表达在术后的时间点下降. 对于miR-203a-3p,miR-494-3p,miR-497-5p或miR-543.p没有观察到任何显著的变化.
结论:
- 在患有脊髓血淋巴瘤的狗中,miR-126-5p,miR-150-5p,miR-214-3p和miR-452-5p的表达在脊髓切除术后下降.
- 这些miRNAs,以前与血管新生和血管肉瘤的发病有关,显示出对犬膜血管肉瘤的最小侵入性诊断面板的生物标志物的潜力.
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