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CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway
Cytidine monophosphate kinase 2 (CMPK2) is a mitochondrial nucleotide monophosphate kinase which is important for the substrates of mitochondrial DNA synthesis and has been reported to participate in macrophage activation and the inflammatory response. The purpose of the present research was to dete...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
D.A. Spandidos
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8515557/ https://www.ncbi.nlm.nih.gov/pubmed/34659504 http://dx.doi.org/10.3892/etm.2021.10793 |
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author | Luo, Yunhai Zheng, Daofeng Mou, Tong Pu, Junliang Huang, Zuotian Chen, Wei Zhang, Yuke Wu, Zhongjun |
author_facet | Luo, Yunhai Zheng, Daofeng Mou, Tong Pu, Junliang Huang, Zuotian Chen, Wei Zhang, Yuke Wu, Zhongjun |
author_sort | Luo, Yunhai |
collection | PubMed |
description | Cytidine monophosphate kinase 2 (CMPK2) is a mitochondrial nucleotide monophosphate kinase which is important for the substrates of mitochondrial DNA synthesis and has been reported to participate in macrophage activation and the inflammatory response. The purpose of the present research was to determine the potential role of CMPK2 in hepatic ischemia/reperfusion (I/R) injury and to elucidate the underlying molecular mechanisms. The present study investigated the role of CMPK2 in regulating the NLRP3 pathway and liver dysfunction induced by hepatic I/R both in vivo and in vitro. It was revealed that hypoxia/reoxygenation (H/R) treatment enhanced the mRNA expression levels of CMPK2, NLRP3, IL-18, IL-1β and TNF-α in RAW 264.7 cells. The protein expression levels of IL-18, IL-1β and cleaved-caspase-1 were decreased following CMPK2 knockdown. Furthermore, the inhibition of AIM2 downregulated the expression level of IL-1β, IL-18 and cleaved-caspase-1 in the CMPK2 knockdown group followed by H/R treatment, while the inhibition of NLRP3 did not. CMPK2 deficiency also decreased alanine aminotransferase and aspartate aminotransferase expression in mice serum, as well as the pathological changes in the liver. Similarly, the release of IL-18 and IL-1β in mouse serum was also restrained with the decline of CMPK2. In conclusion, the results of the present study demonstrate that CMPK2 is indispensable for NLRP3 inflammasome activation, making CMPK2 an effective target to relieve the liver from I/R injury. In addition, the function of CMPK2 is closely associated with NLRP3 inflammasome activation, instead of AIM2. |
format | Online Article Text |
id | pubmed-8515557 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | D.A. Spandidos |
record_format | MEDLINE/PubMed |
spelling | pubmed-85155572021-10-15 CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway Luo, Yunhai Zheng, Daofeng Mou, Tong Pu, Junliang Huang, Zuotian Chen, Wei Zhang, Yuke Wu, Zhongjun Exp Ther Med Articles Cytidine monophosphate kinase 2 (CMPK2) is a mitochondrial nucleotide monophosphate kinase which is important for the substrates of mitochondrial DNA synthesis and has been reported to participate in macrophage activation and the inflammatory response. The purpose of the present research was to determine the potential role of CMPK2 in hepatic ischemia/reperfusion (I/R) injury and to elucidate the underlying molecular mechanisms. The present study investigated the role of CMPK2 in regulating the NLRP3 pathway and liver dysfunction induced by hepatic I/R both in vivo and in vitro. It was revealed that hypoxia/reoxygenation (H/R) treatment enhanced the mRNA expression levels of CMPK2, NLRP3, IL-18, IL-1β and TNF-α in RAW 264.7 cells. The protein expression levels of IL-18, IL-1β and cleaved-caspase-1 were decreased following CMPK2 knockdown. Furthermore, the inhibition of AIM2 downregulated the expression level of IL-1β, IL-18 and cleaved-caspase-1 in the CMPK2 knockdown group followed by H/R treatment, while the inhibition of NLRP3 did not. CMPK2 deficiency also decreased alanine aminotransferase and aspartate aminotransferase expression in mice serum, as well as the pathological changes in the liver. Similarly, the release of IL-18 and IL-1β in mouse serum was also restrained with the decline of CMPK2. In conclusion, the results of the present study demonstrate that CMPK2 is indispensable for NLRP3 inflammasome activation, making CMPK2 an effective target to relieve the liver from I/R injury. In addition, the function of CMPK2 is closely associated with NLRP3 inflammasome activation, instead of AIM2. D.A. Spandidos 2021-12 2021-09-24 /pmc/articles/PMC8515557/ /pubmed/34659504 http://dx.doi.org/10.3892/etm.2021.10793 Text en Copyright: © Luo et al. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/) , which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. |
spellingShingle | Articles Luo, Yunhai Zheng, Daofeng Mou, Tong Pu, Junliang Huang, Zuotian Chen, Wei Zhang, Yuke Wu, Zhongjun CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway |
title | CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway |
title_full | CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway |
title_fullStr | CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway |
title_full_unstemmed | CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway |
title_short | CMPK2 accelerates liver ischemia/reperfusion injury via the NLRP3 signaling pathway |
title_sort | cmpk2 accelerates liver ischemia/reperfusion injury via the nlrp3 signaling pathway |
topic | Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8515557/ https://www.ncbi.nlm.nih.gov/pubmed/34659504 http://dx.doi.org/10.3892/etm.2021.10793 |
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