在马来亚老虎 (Panthera tigris jacksoni) 中,对犬病毒的分子表征和组织病理分析
Muhammad Farris Mohd Sadali1, Abdul Razak Mariatulqabtiah2,3, Annas Salleh4
1Department of Veterinary Pathology & Microbiology, Faculty of Veterinary Medicine, University Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Journal of veterinary science
|January 6, 2026
概括
狗病毒 (CDV) 在马来亚老虎中检测到,显示出显著的组织病理变化和突变,表明适应野生动物. 这项研究提供了对CDV进化和危物种保护策略的见解.
科学领域:
- 兽医病毒学 兽医病毒学
- 野生动物疾病生态学 野生动物疾病生态学
- 分子流行病学分子流行病学
背景情况:
- 狗病毒 (CDV) 对包括危物种在内的各种哺乳动物物种构成重大威胁.
- 马来亚老虎 (Panthera tigris jacksoni) 首次记录的CDV病例突出了从家禽或野生动物水库中可能发生的溢出事件.
研究的目的:
- 在马来亚老虎中对CDV感染进行基因病理学性质鉴定.
- 在分子上对CDV菌株进行表征,并确定其遗传学起源.
- 研究非犬类物种的病毒病原性和宿主适应性.
主要方法:
- 组织病理学用血素和素和免疫组织化学染色.
- 在CHO-SLAM细胞中对病毒进行隔离和定位.
- 反转录聚合酶连锁反应 (RT-PCR) 检测RNA,随后进行核酸和氨基酸序列分析.
主要成果:
- 在多个器官中观察到显著的组织病理变化,在肺部,肝脏,脏和胃中检测到病毒抗原.
- 遗传学分析将CDV菌株置于亚洲-1类.
- 血凝素蛋白中的特定突变 (549H和519I) 表明它适应了非犬类宿主.
结论:
- 这项研究提供了马来亚虎中CDV菌株的综合分子特征.
- 这些发现提高了对野生动物中CDV进化动态和病原性的理解.
- 结果可以作为制定对危物种中CDV的保护策略的基准.
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