The function of NLRP1 in noninfectious pulmonary injury following allogeneic hematopoietic stem cell transplantation
10.3760/cma.j.issn.0253-2727.2017.07.011
- VernacularTitle: NLRP1在异基因造血干细胞移植后非感染性肺损伤中的作用
- Author:
Mingfeng LI
1
;
Wen LI
;
Lan DING
;
Yulu WU
;
Lu LIU
;
Wen JU
;
Jianlin QIAO
;
Kailin XU
;
Lingyu ZENG
Author Information
1. Department of Hematology, Xuzhou Medical University, Jiangsu Province Xuzhou 221002, China
- Publication Type:Journal Article
- Keywords:
Hematopoietic stem cell transplantation;
Lung injury;
Nucleotide-binding, leucine-rich repeat pyrin domain containing protein 1
- From:
Chinese Journal of Hematology
2017;38(7):607-611
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the function of NLRP1 in noninfectious pulmonary injury (nonIPI) after allogeneic stem cell transplantation (allo-HSCT) .
Methods:In this study, we established the model of allo-HSCT with C57BL/6 and NLRP-/- mouse as recipients. Chimera rate was measured by flow cytometry. The HE staining was used to observe the pathology changes in the lungs. NLRP1 and relevant inflammatory proteins were measured by Western Blot.
Results:On the day 14 after allo-HSCT, the chimera rate was more than 96%, HSCs of donors had been successfully transplanted into recipients. HE staining showed that nonIPI occurred after allo-HSCT. The degrees of injuries reached the peak on day 21. In addition, the expressions of MPO, NLRP1, p20, Mature-IL-1β and Mature-IL-18 had same tends with the degrees of nonIPI. When we knocked out NLRP1 gene of recipients, the degrees of nonIPI reduced and the expressions of MPO, p20, Mature-IL-1β and Mature-IL-18 were less than in non-knockout group.
Conclusion:allo-HSCT could cause nonIPI and high expressions of MPO, p20, IL-1β, IL-18, NLRP1. Knocking out NLRP1 gene could alleviate the degrees of nonIPI and reduce the expressions of relevant inflammatory proteins, indicating that NLRP1 might be one of factors contributed to nonIPI after allo-HSCT.
