MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5

Childhood Asthma is the most universal chronic disease, with significant cases reported. Despite the current progress in treatment, prognosis remain poor and the existing drugs cause serious side effects. This investigation explored the mechanisms and use of miR-335-5p on childhood asthma therapy. M...

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Autores principales: Qingbin Liang, Jingjing He, Qian Yang, Qinghua Zhang, Yingjun Xu
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Publicado: Taylor & Francis Group 2021
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Acceso en línea:https://doaj.org/article/89ba4ff3516e4a07b35548c484d987b8
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spelling oai:doaj.org-article:89ba4ff3516e4a07b35548c484d987b82021-11-04T15:51:54ZMicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 52165-59792165-598710.1080/21655979.2021.1996315https://doaj.org/article/89ba4ff3516e4a07b35548c484d987b82021-10-01T00:00:00Zhttp://dx.doi.org/10.1080/21655979.2021.1996315https://doaj.org/toc/2165-5979https://doaj.org/toc/2165-5987Childhood Asthma is the most universal chronic disease, with significant cases reported. Despite the current progress in treatment, prognosis remain poor and the existing drugs cause serious side effects. This investigation explored the mechanisms and use of miR-335-5p on childhood asthma therapy. MiR-335-5p and ATG5 expression was analyzed in clinical plasma samples through RT-qPCR. Airway smooth muscle cells (ASMCs) were cultured, and transfected with miR-335-5p mimic, miR-335-5p inhibitor, and pcDNA3.1-ATG5, or co-transfected with miR-335-5p mimic + pcDNA3.1-ATG5. Asthma cell models were constructed through TGF-β1, and animal models through ovalbumin (OVA). Monocyte-macrophage infiltration in bronchoalveolar lavage fluid (BALF) was determined by May−Grunwald−Giemsa staining, and collagen in lung tissue was assessed via Masson staining. Relationship between miR-335-5p and ATG5 was detected by Dual luciferase assay. Cell proliferation was detected by MTT assay. MiR-335-5p and ATG5 RNA expression was determined by RT-qPCR. Collagen I, collagen III, α-SMA, ATG5, LC3I/II, Beclin-1, and p62 protein expression levels in ASMCs was detected by western blot. MiR-335-5p expression was low, but ATG5 expression was high in childhood asthma. Versus OVA+ mimic NC group, the number of eosinophil and collagen in OVA+ miR-335-5p mimic group were reduced. In contrast to TGF-β1 + mimic NC group, TGF-β1 + miR-335-5p mimic group reduced inflammatory, airway fibrosis and autophagy in ASMCs. ATG5 was miR-335-5p target. Overexpressing ATG5 significantly reversed the inhibitory effects of miR-335-5p on inflammatory response, fibrosis and autophagy in ASMCs. Overall, the study concludes that MiR-335-5p alleviate inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of ATG5.Qingbin LiangJingjing HeQian YangQinghua ZhangYingjun XuTaylor & Francis Grouparticlechildhood asthmamir-335-5patg5inflammatory responseairway fibrosisautophagyBiotechnologyTP248.13-248.65ENBioengineered, Vol 0, Iss 0 (2021)
institution DOAJ
collection DOAJ
language EN
topic childhood asthma
mir-335-5p
atg5
inflammatory response
airway fibrosis
autophagy
Biotechnology
TP248.13-248.65
spellingShingle childhood asthma
mir-335-5p
atg5
inflammatory response
airway fibrosis
autophagy
Biotechnology
TP248.13-248.65
Qingbin Liang
Jingjing He
Qian Yang
Qinghua Zhang
Yingjun Xu
MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5
description Childhood Asthma is the most universal chronic disease, with significant cases reported. Despite the current progress in treatment, prognosis remain poor and the existing drugs cause serious side effects. This investigation explored the mechanisms and use of miR-335-5p on childhood asthma therapy. MiR-335-5p and ATG5 expression was analyzed in clinical plasma samples through RT-qPCR. Airway smooth muscle cells (ASMCs) were cultured, and transfected with miR-335-5p mimic, miR-335-5p inhibitor, and pcDNA3.1-ATG5, or co-transfected with miR-335-5p mimic + pcDNA3.1-ATG5. Asthma cell models were constructed through TGF-β1, and animal models through ovalbumin (OVA). Monocyte-macrophage infiltration in bronchoalveolar lavage fluid (BALF) was determined by May−Grunwald−Giemsa staining, and collagen in lung tissue was assessed via Masson staining. Relationship between miR-335-5p and ATG5 was detected by Dual luciferase assay. Cell proliferation was detected by MTT assay. MiR-335-5p and ATG5 RNA expression was determined by RT-qPCR. Collagen I, collagen III, α-SMA, ATG5, LC3I/II, Beclin-1, and p62 protein expression levels in ASMCs was detected by western blot. MiR-335-5p expression was low, but ATG5 expression was high in childhood asthma. Versus OVA+ mimic NC group, the number of eosinophil and collagen in OVA+ miR-335-5p mimic group were reduced. In contrast to TGF-β1 + mimic NC group, TGF-β1 + miR-335-5p mimic group reduced inflammatory, airway fibrosis and autophagy in ASMCs. ATG5 was miR-335-5p target. Overexpressing ATG5 significantly reversed the inhibitory effects of miR-335-5p on inflammatory response, fibrosis and autophagy in ASMCs. Overall, the study concludes that MiR-335-5p alleviate inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of ATG5.
format article
author Qingbin Liang
Jingjing He
Qian Yang
Qinghua Zhang
Yingjun Xu
author_facet Qingbin Liang
Jingjing He
Qian Yang
Qinghua Zhang
Yingjun Xu
author_sort Qingbin Liang
title MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5
title_short MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5
title_full MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5
title_fullStr MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5
title_full_unstemmed MicroRNA-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of Autophagy related 5
title_sort microrna-335-5p alleviates inflammatory response, airway fibrosis and autophagy in childhood asthma through targeted regulation of autophagy related 5
publisher Taylor & Francis Group
publishDate 2021
url https://doaj.org/article/89ba4ff3516e4a07b35548c484d987b8
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AT jingjinghe microrna3355palleviatesinflammatoryresponseairwayfibrosisandautophagyinchildhoodasthmathroughtargetedregulationofautophagyrelated5
AT qianyang microrna3355palleviatesinflammatoryresponseairwayfibrosisandautophagyinchildhoodasthmathroughtargetedregulationofautophagyrelated5
AT qinghuazhang microrna3355palleviatesinflammatoryresponseairwayfibrosisandautophagyinchildhoodasthmathroughtargetedregulationofautophagyrelated5
AT yingjunxu microrna3355palleviatesinflammatoryresponseairwayfibrosisandautophagyinchildhoodasthmathroughtargetedregulationofautophagyrelated5
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