sFGL2作为一种潜在的免疫抑制生物标志物,与脏移植接受者的COVID-19严重性有关
Yufei Zhang1,2, Min Yang1,2, Kai Liu1,2
1Transplantation Center, The Third Xiangya Hospital, Central South University, Changsha, China.
Immunity, inflammation and disease
|October 28, 2025
概括
可溶性纤维素样蛋白2 (sFGL2) 在COVID-19的移植受体中升高,与疾病严重程度和免疫抑制相关. 降低sFGL2水平和恢复的淋巴细胞数量表明临床改善.
科学领域:
- 免疫学 免疫学 免疫学
- 移植医学 移植医学
- 病毒学 病毒学
背景情况:
- 感染SARS-CoV-2可能会导致长时间的免疫抑制.
- 可溶性纤维素样蛋白2 (sFGL2) 是一个新兴的免疫调节剂.
- 在移植接受者 (KTRs) 中,sFGL2在SARS-CoV-2诱导的免疫抑制中的作用尚不清楚.
研究的目的:
- 调查sFGL2水平与KTRs中SARS-CoV-2诱导的免疫抑制之间的相关性.
- 评估sFGL2作为疾病严重程度和预后的潜在生物标志物.
主要方法:
- 测量了sFGL2水平和周围血液淋巴细胞亚群 (PBLSs) 在50名COVID-19的KTR和15名没有COVID-19的稳定KTR中.
- 与酶相关的免疫吸收试验 (ELISA) 用于sFGL2量化.
- 使用流细胞计量分析PBLS,包括CD3+和CD8+T细胞计数.
主要成果:
- 与对照组相比,患有COVID-19的KTR表现出明显更高的sFGL2水平.
- 在COVID-19患者中,高的sFGL2水平与肺炎和疾病严重程度有关.
- sFGL2水平与CD3+和CD8+T细胞计数负相关,表明免疫抑制.
- sFGL2水平下降,PBLS数量恢复,临床改善.
结论:
- sFGL2与免疫抑制,疾病严重程度和COVID-19的KTRs的预后有关.
- sFGL2可能作为一种新的生物标志物,用于在COVID-19后的KTR中监测免疫状态.
- 这些发现凸显了sFGL2作为移植受体预测工具的潜力.
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