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Comparison of Lymphocyte Populations in Patients With Dobrava or Puumala orthohantavirus Infection
Frontiers in Cellular and Infection Microbiology ( IF 5.7 ) Pub Date : 2020-09-14 , DOI: 10.3389/fcimb.2020.566149
Katarina Resman Rus 1 , Andreja Nataša Kopitar 1 , Miša Korva 1 , Alojz Ihan 1 , Miroslav Petrovec 1 , Tatjana Avšič-Županc 1
Affiliation  

Hemorrhagic fever with renal syndrome (HFRS), caused by Dobrava (DOBV) and Puumala (PUUV) orthohantaviruses, is an endemic disease in Slovenia. DOBV is mainly responsible for a more severe disease, whereas PUUV usually causes a milder form. Therefore, the aim of our study was to determine whether any differences in lymphocyte population in patients infected with these two viruses exist. Mononuclear cells from peripheral blood (PBMCs) were isolated from DOBV or PUUV infected patients and different lymphocyte subpopulations were analyzed with flow cytometry. Decreased concentrations of lymphocyte subpopulation were observed in DOBV and in PUUV infected patients compared with a healthy control, which was especially evident in DOBV infected patients. The lower values of T cells are likely due to the extravasation of the activated cells from the circulation to the infected tissue. Higher percentage of NK cells were detected in DOBV infected patients in comparison to PUUV infected patients, which could be associated with a more severe HFRS caused by DOBV. PUUV infected patients had a significantly higher concentration of activated T cell subsets, expressing markers CD25, CD69, and HLA-DR in comparison to DOBV infected patients. Higher activation of T cell subsets in PUUV infected patients could be a contributor to a milder HFRS. Further studies are necessary to elucidate the relation between the protective and the harmful role of activated lymphocytes subsets in HFRS pathogenesis.



中文翻译:

Dobrava或Puumala正汉坦病毒感染患者淋巴细胞数量的比较

由Dobrava(DOBV)和Puumala(PUUV)正汉坦病毒引起的肾综合征出血热(HFRS)是斯洛文尼亚的地方病。DOBV主要负责更严重的疾病,而PUUV通常引起较轻的形式。因此,我们研究的目的是确定感染这两种病毒的患者的淋巴细胞数量是否存在差异。从DOBV或PUUV感染的患者中分离出外周血(PBMC)的单核细胞,并用流式细胞仪分析不同的淋巴细胞亚群。与健康对照组相比,在DOBV和PUUV感染患者中观察到淋巴细胞亚群浓度降低,这在DOBV感染患者中尤为明显。T细胞值较低可能是由于活化细胞从循环系统向感染组织的扩散所致。与PUUV感染的患者相比,DOBV感染的患者中检测到的NK细胞百分比更高,这可能与DOBV引起的更严重的HFRS有关。与感染DOBV的患者相比,感染PUUV的患者的活化T细胞亚群浓度显着更高,表达标记CD25,CD69和HLA-DR。PUUV感染患者中T细胞亚群的较高活化可能是导致HFRS较轻的原因。有必要进行进一步的研究以阐明活化的淋巴细胞亚群在HFRS发病机理中的保护作用与有害作用之间的关系。与PUUV感染的患者相比,DOBV感染的患者中检测到的NK细胞百分比更高,这可能与DOBV引起的更严重的HFRS有关。与感染DOBV的患者相比,感染PUUV的患者的活化T细胞亚群浓度显着更高,表达标记CD25,CD69和HLA-DR。PUUV感染患者中T细胞亚群的较高活化可能是导致HFRS较轻的原因。有必要进行进一步的研究以阐明活化的淋巴细胞亚群在HFRS发病机理中的保护作用与有害作用之间的关系。与PUUV感染的患者相比,DOBV感染的患者中检测到的NK细胞百分比更高,这可能与DOBV引起的更严重的HFRS有关。与感染DOBV的患者相比,感染PUUV的患者的活化T细胞亚群浓度显着更高,表达标记CD25,CD69和HLA-DR。PUUV感染患者中T细胞亚群的较高活化可能是导致HFRS较轻的原因。有必要进行进一步的研究以阐明活化的淋巴细胞亚群在HFRS发病机理中的保护作用与有害作用之间的关系。和HLA-DR与DOBV感染的患者相比。PUUV感染患者中T细胞亚群的较高活化可能是导致HFRS较轻的原因。有必要进行进一步的研究以阐明活化的淋巴细胞亚群在HFRS发病机理中的保护作用与有害作用之间的关系。和HLA-DR与DOBV感染的患者相比。PUUV感染患者中T细胞亚群的较高活化可能是导致HFRS较轻的原因。有必要进行进一步的研究以阐明活化的淋巴细胞亚群在HFRS发病机理中的保护作用与有害作用之间的关系。

更新日期:2020-10-17
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