期刊
VIRAL IMMUNOLOGY
卷 35, 期 6, 页码 418-424出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/vim.2022.0007
关键词
Hantaan orthohantavirus; hemorrhagic fever with renal syndrome; myeloperoxidase; MPO-DNA; neutrophil; platelet
资金
- National Natural Science Foundation of China [81771705, 81871239]
This study analyzed the role of neutrophils in HFRS patients. The results showed that plasma MPO and NPA significantly increased in the acute phase and critical/severe groups of HFRS patients and were correlated with inflammatory and renal injury-related clinical parameters. These findings provide new insights into the potential role of neutrophils in the pathogenesis of HFRS.
Hantaan orthohantavirus (HTNV) can cause hemorrhagic fever with renal syndrome (HFRS) characterized by acute kidney injury and hemorrhage. Neutrophils are the most abundant innate immune cell and the body's first line of defense against pathogens. Currently, an increasing number of studies have shown that neutrophils may be a mixed blessing in terms of viral infections. However, the role of neutrophils in HFRS patients with HTNV infection has not been fully declared. In this study, we analyzed plasma levels of both myeloperoxidase (MPO) and MPO-DNA in HFRS patients, together with the clinical parameters. Neutrophil-platelet aggregates (NPAs) during the acute and convalescent phases of HFRS were also assessed. The results showed that plasma MPO-DNA levels had no change in different disease phases or severities of HFRS patients. Whereas plasma MPO significantly increased in the acute phase and critical/severe groups of HFRS patients. Furthermore, plasma MPO was positively correlated with inflammatory clinical parameters, such as white blood cell counts, neutrophil counts, and renal injury-related parameters, such as blood urea nitrogen, blood uric acid, and serum creatinine, as well as negatively correlated with and platelet counts. In addition, NPAs increased both in acute and convalescent phase in HFRS patients compared with normal controls. These results suggested that elevated plasma MPO in HFRS patients correlated with disease severity, together with the increases of NPAs in HFRS patients, which may provide new insights into potential role of neutrophils in the pathogenesis of HFRS.
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