缺乏CCL4及其受体CCR5在关节致病性阿尔法病毒疾病中的致病性参与
Muddassar Hameed1,2, Norman A Solomon1,2, James Weger-Lucarelli1,2,3
1Department of Biomedical Sciences and Pathobiology, VA-MD Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24060, USA.
bioRxiv : the preprint server for biology
|August 12, 2024
概括
化学基因CCL4及其受体CCR5对小鼠的梅亚罗病毒感染进展或疾病结局没有显著影响. 这些发现表明CCL4和CCR5不是阿尔法病毒引起的关节炎的关键驱动因素.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
背景情况:
- 像 chikungunya 病毒 (CHIKV) 这样的关节性阿尔法病毒会引起发烧,皮疹和关节胀.
- 阿尔法病毒感染引发免疫反应,包括化学因子C-C连接体4 (CCL4) 的上调.
- CCL4吸引免疫细胞到感染部位,但其在阿尔法病毒疾病中的作用尚不清楚.
研究的目的:
- 为了研究CCL4在玛雅罗病毒 (MAYV) 感染中的作用.
- 为了确定CCL4的受体CCR5是否会影响MAYV疾病的进展.
主要方法:
- 用抗体去除CCL4的小鼠或用重组CCL4.4治疗小鼠.
- CCR5淘汰赛小鼠 (CCR5-/-) 感染了MAYV.
- 监测疾病进展 (体重减轻,脚胀) 和病毒病.
主要成果:
- CCL4衰减或复合CCL4治疗没有改变MAYV疾病的进展或病毒性.
- 与野生类型小鼠相比,CCR5淘汰小鼠在疾病发展或免疫细胞概况上没有差异.
- 没有确定CCL4或CCR5在MAYV感染中的明确作用.
结论:
- 在小鼠中,CCL4及其受体CCR5似乎在玛雅罗病毒感染的发病过程中没有发挥显著作用.
- 需要进一步的研究,以了解阿尔法病毒诱导的关节炎背后的复杂免疫机制.
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