The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury
Yao Tong,* Chengrong Bao,* Yi-Qiong Xu,* Lei Tao,* Yao Zhou, Lei Zhuang, Ying Meng, Hui Zhang, Jingjing Xue, Weijun Wang, Lele Zhang, Qingbo Pan, Zhenzhen Shao, Tianran Hu, Qian Guo, Qingsheng Xue, Han Lu, Yan Luo Department of Anesthesiology, Ruijin Hospital, Shangha...
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Dove Medical Press
2021
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oai:doaj.org-article:bb5dbad1094b4221843688262956166f2021-12-02T18:55:10ZThe β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury1178-7031https://doaj.org/article/bb5dbad1094b4221843688262956166f2021-10-01T00:00:00Zhttps://www.dovepress.com/the-35-integrin-mmp9-axis-regulates-pulmonary-inflammatory-response-an-peer-reviewed-fulltext-article-JIRhttps://doaj.org/toc/1178-7031Yao Tong,* Chengrong Bao,* Yi-Qiong Xu,* Lei Tao,* Yao Zhou, Lei Zhuang, Ying Meng, Hui Zhang, Jingjing Xue, Weijun Wang, Lele Zhang, Qingbo Pan, Zhenzhen Shao, Tianran Hu, Qian Guo, Qingsheng Xue, Han Lu, Yan Luo Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People’s Republic of China*These authors contributed equally to this workCorrespondence: Yan Luo; Han Lu Email ly11087@rjh.com.cn; luhan0301@163.comBackground: Acute lung injury (ALI) is a severe respiratory disease with high rates of morbidity and mortality. Many mediators regarding endogenous or exogenous are involved in the pathophysiology of ALI. Here, we have uncovered the involvement of integrins and matrix metalloproteinases, as critical determinants of excessive inflammation and endothelial permeability, in the regulation of ALI.Methods: Inflammatory cytokines were measured by quantitative real-time PCR for mRNA levels and ELISA for secretion levels. Endothelial permeability assay was detected by the passage of rhodamine B isothiocyanate-dextran. Mice lung permeability was assayed by Evans blue albumin (EBA). Western blot was used for protein level measurements. The intracellular reactive oxygen species (ROS) were evaluated using a cell-permeable probe, DCFH-DA. Intratracheal injection of lipopolysaccharide (LPS) into mice was conducted to establish the lung injury model.Results: Exogenous MMP-9 significantly aggravated the inflammatory response and permeability in mouse pulmonary microvascular endothelial cells (PMVECs) treated by LPS, whereas knockdown of MMP-9 exhibited the opposite phenotypes. Knockdown of integrin β 3 or β 5 in LPS-treated PMVECs significantly downregulated MMP-9 expression and decreased inflammatory response and permeability in the presence or absence of exogenous MMP-9. Additionally, the interaction of MMP-9 and integrin β 5 was impaired by a ROS scavenger, which further decreased the pro-inflammatory cytokines production and endothelial leakage in PMVECs subjected to co-treatment (LPS with exogenous MMP-9). In vivo studies, exogenous MMP-9 treatment or knockdown β 3 integrin significantly decreased survival in ALI mice. Notably, knockdown of β 5 integrin alone had no remarkable effect on survival, but which combined with anti-MMP-9 treatment significantly improved the survival by ameliorating excessive lung inflammation and permeability in ALI mice.Conclusion: These findings support the β 3/5 integrin-MMP-9 axis as an endogenous signal that could play a pivotal role in regulating inflammatory response and alveolar-capillary permeability in ALI.Keywords: acute lung injury, endothelial cells, integrin, MMP-9Tong YBao CXu YQTao LZhou YZhuang LMeng YZhang HXue JWang WZhang LPan QShao ZHu TGuo QXue QLu HLuo YDove Medical Pressarticleacute lung injuryendothelial cellsintegrinmmp-9PathologyRB1-214Therapeutics. PharmacologyRM1-950ENJournal of Inflammation Research, Vol Volume 14, Pp 5079-5094 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
acute lung injury endothelial cells integrin mmp-9 Pathology RB1-214 Therapeutics. Pharmacology RM1-950 |
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acute lung injury endothelial cells integrin mmp-9 Pathology RB1-214 Therapeutics. Pharmacology RM1-950 Tong Y Bao C Xu YQ Tao L Zhou Y Zhuang L Meng Y Zhang H Xue J Wang W Zhang L Pan Q Shao Z Hu T Guo Q Xue Q Lu H Luo Y The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury |
| description |
Yao Tong,* Chengrong Bao,* Yi-Qiong Xu,* Lei Tao,* Yao Zhou, Lei Zhuang, Ying Meng, Hui Zhang, Jingjing Xue, Weijun Wang, Lele Zhang, Qingbo Pan, Zhenzhen Shao, Tianran Hu, Qian Guo, Qingsheng Xue, Han Lu, Yan Luo Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, People’s Republic of China*These authors contributed equally to this workCorrespondence: Yan Luo; Han Lu Email ly11087@rjh.com.cn; luhan0301@163.comBackground: Acute lung injury (ALI) is a severe respiratory disease with high rates of morbidity and mortality. Many mediators regarding endogenous or exogenous are involved in the pathophysiology of ALI. Here, we have uncovered the involvement of integrins and matrix metalloproteinases, as critical determinants of excessive inflammation and endothelial permeability, in the regulation of ALI.Methods: Inflammatory cytokines were measured by quantitative real-time PCR for mRNA levels and ELISA for secretion levels. Endothelial permeability assay was detected by the passage of rhodamine B isothiocyanate-dextran. Mice lung permeability was assayed by Evans blue albumin (EBA). Western blot was used for protein level measurements. The intracellular reactive oxygen species (ROS) were evaluated using a cell-permeable probe, DCFH-DA. Intratracheal injection of lipopolysaccharide (LPS) into mice was conducted to establish the lung injury model.Results: Exogenous MMP-9 significantly aggravated the inflammatory response and permeability in mouse pulmonary microvascular endothelial cells (PMVECs) treated by LPS, whereas knockdown of MMP-9 exhibited the opposite phenotypes. Knockdown of integrin β 3 or β 5 in LPS-treated PMVECs significantly downregulated MMP-9 expression and decreased inflammatory response and permeability in the presence or absence of exogenous MMP-9. Additionally, the interaction of MMP-9 and integrin β 5 was impaired by a ROS scavenger, which further decreased the pro-inflammatory cytokines production and endothelial leakage in PMVECs subjected to co-treatment (LPS with exogenous MMP-9). In vivo studies, exogenous MMP-9 treatment or knockdown β 3 integrin significantly decreased survival in ALI mice. Notably, knockdown of β 5 integrin alone had no remarkable effect on survival, but which combined with anti-MMP-9 treatment significantly improved the survival by ameliorating excessive lung inflammation and permeability in ALI mice.Conclusion: These findings support the β 3/5 integrin-MMP-9 axis as an endogenous signal that could play a pivotal role in regulating inflammatory response and alveolar-capillary permeability in ALI.Keywords: acute lung injury, endothelial cells, integrin, MMP-9 |
| format |
article |
| author |
Tong Y Bao C Xu YQ Tao L Zhou Y Zhuang L Meng Y Zhang H Xue J Wang W Zhang L Pan Q Shao Z Hu T Guo Q Xue Q Lu H Luo Y |
| author_facet |
Tong Y Bao C Xu YQ Tao L Zhou Y Zhuang L Meng Y Zhang H Xue J Wang W Zhang L Pan Q Shao Z Hu T Guo Q Xue Q Lu H Luo Y |
| author_sort |
Tong Y |
| title |
The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury |
| title_short |
The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury |
| title_full |
The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury |
| title_fullStr |
The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury |
| title_full_unstemmed |
The β3/5 Integrin-MMP9 Axis Regulates Pulmonary Inflammatory Response and Endothelial Leakage in Acute Lung Injury |
| title_sort |
β3/5 integrin-mmp9 axis regulates pulmonary inflammatory response and endothelial leakage in acute lung injury |
| publisher |
Dove Medical Press |
| publishDate |
2021 |
| url |
https://doaj.org/article/bb5dbad1094b4221843688262956166f |
| work_keys_str_mv |
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