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LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte
One of the major complications in diabetes is impaired wound healing. Unfortunately, effective therapies are currently lacking. Epithelial to mesenchymal transition (EMT) is a critical process involved in cutaneous wound healing. In response to injury, EMT is required to activate and mobilize statio...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8584148/ https://www.ncbi.nlm.nih.gov/pubmed/34769245 http://dx.doi.org/10.3390/ijms222111816 |
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author | Zhang, Liping Hu, Junyi Meshkat, Bahar I. Liechty, Kenneth W. Xu, Junwang |
author_facet | Zhang, Liping Hu, Junyi Meshkat, Bahar I. Liechty, Kenneth W. Xu, Junwang |
author_sort | Zhang, Liping |
collection | PubMed |
description | One of the major complications in diabetes is impaired wound healing. Unfortunately, effective therapies are currently lacking. Epithelial to mesenchymal transition (EMT) is a critical process involved in cutaneous wound healing. In response to injury, EMT is required to activate and mobilize stationary keratinocytes in the skin toward the wound bed, which allows for re-epithelialization. This process is stalled in diabetic wounds. In this study, we investigate the role of long non-coding RNA (lncRNA), MALAT1, in transforming growth factor beta 1(TGF-β1)-induced EMT of human keratinocyte (HaCaT) cells. Initially, we detected MALAT1 and TGF-β1 expression in non-diabetic and diabetic wounds and found that these expression are significantly up-regulated in diabetic wounds. Then, HaCaT cells were cultured and exposed to TGF-β1. The EMT of HaCaT cells were confirmed by the increased expression of CDH2, KRT10, and ACTA2, in addition to the down-regulation of CDH1. Knockdown of MALAT1 was achieved by transfecting a small interfering RNA (SiRNA). MALAT1 silencing attenuates TGFβ1-induced EMT. Mechanistically, MALAT1 is involved in TGF-β1 mediated EMT through significantly induced ZEB1 expression, a critical transcription factor for EMT. In summary, lncRNA MALAT1 is involved in TGFβ1-induced EMT of human HaCaT cells and provides new understanding for the pathogenesis of diabetic wounds. |
format | Online Article Text |
id | pubmed-8584148 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85841482021-11-12 LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte Zhang, Liping Hu, Junyi Meshkat, Bahar I. Liechty, Kenneth W. Xu, Junwang Int J Mol Sci Article One of the major complications in diabetes is impaired wound healing. Unfortunately, effective therapies are currently lacking. Epithelial to mesenchymal transition (EMT) is a critical process involved in cutaneous wound healing. In response to injury, EMT is required to activate and mobilize stationary keratinocytes in the skin toward the wound bed, which allows for re-epithelialization. This process is stalled in diabetic wounds. In this study, we investigate the role of long non-coding RNA (lncRNA), MALAT1, in transforming growth factor beta 1(TGF-β1)-induced EMT of human keratinocyte (HaCaT) cells. Initially, we detected MALAT1 and TGF-β1 expression in non-diabetic and diabetic wounds and found that these expression are significantly up-regulated in diabetic wounds. Then, HaCaT cells were cultured and exposed to TGF-β1. The EMT of HaCaT cells were confirmed by the increased expression of CDH2, KRT10, and ACTA2, in addition to the down-regulation of CDH1. Knockdown of MALAT1 was achieved by transfecting a small interfering RNA (SiRNA). MALAT1 silencing attenuates TGFβ1-induced EMT. Mechanistically, MALAT1 is involved in TGF-β1 mediated EMT through significantly induced ZEB1 expression, a critical transcription factor for EMT. In summary, lncRNA MALAT1 is involved in TGFβ1-induced EMT of human HaCaT cells and provides new understanding for the pathogenesis of diabetic wounds. MDPI 2021-10-30 /pmc/articles/PMC8584148/ /pubmed/34769245 http://dx.doi.org/10.3390/ijms222111816 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Liping Hu, Junyi Meshkat, Bahar I. Liechty, Kenneth W. Xu, Junwang LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte |
title | LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte |
title_full | LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte |
title_fullStr | LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte |
title_full_unstemmed | LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte |
title_short | LncRNA MALAT1 Modulates TGF-β1-Induced EMT in Keratinocyte |
title_sort | lncrna malat1 modulates tgf-β1-induced emt in keratinocyte |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8584148/ https://www.ncbi.nlm.nih.gov/pubmed/34769245 http://dx.doi.org/10.3390/ijms222111816 |
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