Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice

p21-Activated kinase 4 (PAK4), one of the serine/threonine kinases activated by Rho-family GTPases, has been widely studied as an oncogenic protein that is overexpressed in many types of cancers. In our recent study, PAK4 upregulation was observed in mice exhibiting hepatic ischaemia-reperfusion (I/...

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Main Authors: Yuancheng Mao, Eun Lee, Xiaohui Yang, Eun Ju Bae, Raok Jeon, Byung-Hyun Park
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Journal of Enzyme Inhibition and Medicinal Chemistry
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/14756366.2022.2106478
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author Yuancheng Mao
Eun Lee
Xiaohui Yang
Eun Ju Bae
Raok Jeon
Byung-Hyun Park
author_facet Yuancheng Mao
Eun Lee
Xiaohui Yang
Eun Ju Bae
Raok Jeon
Byung-Hyun Park
author_sort Yuancheng Mao
collection DOAJ
description p21-Activated kinase 4 (PAK4), one of the serine/threonine kinases activated by Rho-family GTPases, has been widely studied as an oncogenic protein that is overexpressed in many types of cancers. In our recent study, PAK4 upregulation was observed in mice exhibiting hepatic ischaemia-reperfusion (I/R) and in liver transplantation patients. Liver I/R injury was also attenuated in Pak4 KO mice. Herein, we report a novel series of pyrazolo[3,4-d]pyrimidine derivatives of type I ½ PAK4 inhibitors. The most potent compound SPA7012 was evaluated to determine the pharmacological potential of PAK4 inhibitor in I/R injury in mice. Mice with I/R injury showed typical patterns of liver damage, as demonstrated by increases in serum levels of aminotransferases and proinflammatory cytokines, hepatocellular necrosis and apoptosis, and inflammatory cell infiltration, relative to sham mice. Conversely, intraperitoneal administration of SPA7012 dramatically attenuated biochemical and histopathologic changes. Mechanistically, stabilisation of nuclear factor-erythroid 2-related factor 2 (Nrf2), a master regulator of anti-oxidative response, was observed following SPA7012 treatment. SPA7012 treatment in primary hepatocytes also attenuated hypoxia-reoxygenation-induced apoptotic cell death and inflammation. Together, these results provide experimental evidence supporting the use of PAK4 inhibitors for alleviation of I/R-induced liver damage.
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spelling doaj.art-e01ef43aaaac4945836b4a864de878392022-12-22T02:33:28ZengTaylor & Francis GroupJournal of Enzyme Inhibition and Medicinal Chemistry1475-63661475-63742022-12-013712133214610.1080/14756366.2022.2106478Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in miceYuancheng Mao0Eun Lee1Xiaohui Yang2Eun Ju Bae3Raok Jeon4Byung-Hyun Park5Department of Biochemistry and Research Institute for Endocrine Sciences, Jeonbuk National University Medical School, Jeonju, Republic of KoreaResearch Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of KoreaSchool of Pharmacy, Jeonbuk National University, Jeonju, Republic of KoreaSchool of Pharmacy, Jeonbuk National University, Jeonju, Republic of KoreaResearch Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of KoreaDepartment of Biochemistry and Research Institute for Endocrine Sciences, Jeonbuk National University Medical School, Jeonju, Republic of Koreap21-Activated kinase 4 (PAK4), one of the serine/threonine kinases activated by Rho-family GTPases, has been widely studied as an oncogenic protein that is overexpressed in many types of cancers. In our recent study, PAK4 upregulation was observed in mice exhibiting hepatic ischaemia-reperfusion (I/R) and in liver transplantation patients. Liver I/R injury was also attenuated in Pak4 KO mice. Herein, we report a novel series of pyrazolo[3,4-d]pyrimidine derivatives of type I ½ PAK4 inhibitors. The most potent compound SPA7012 was evaluated to determine the pharmacological potential of PAK4 inhibitor in I/R injury in mice. Mice with I/R injury showed typical patterns of liver damage, as demonstrated by increases in serum levels of aminotransferases and proinflammatory cytokines, hepatocellular necrosis and apoptosis, and inflammatory cell infiltration, relative to sham mice. Conversely, intraperitoneal administration of SPA7012 dramatically attenuated biochemical and histopathologic changes. Mechanistically, stabilisation of nuclear factor-erythroid 2-related factor 2 (Nrf2), a master regulator of anti-oxidative response, was observed following SPA7012 treatment. SPA7012 treatment in primary hepatocytes also attenuated hypoxia-reoxygenation-induced apoptotic cell death and inflammation. Together, these results provide experimental evidence supporting the use of PAK4 inhibitors for alleviation of I/R-induced liver damage.https://www.tandfonline.com/doi/10.1080/14756366.2022.2106478PAK4pyrazolo[3,4-d]pyrimidineliverischaemia-reperfusionhypoxia-reoxygenationNrf2
spellingShingle Yuancheng Mao
Eun Lee
Xiaohui Yang
Eun Ju Bae
Raok Jeon
Byung-Hyun Park
Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice
Journal of Enzyme Inhibition and Medicinal Chemistry
PAK4
pyrazolo[3,4-d]pyrimidine
liver
ischaemia-reperfusion
hypoxia-reoxygenation
Nrf2
title Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice
title_full Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice
title_fullStr Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice
title_full_unstemmed Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice
title_short Targeting p21-activated kinase 4 (PAK4) with pyrazolo[3,4-d]pyrimidine derivative SPA7012 attenuates hepatic ischaemia-reperfusion injury in mice
title_sort targeting p21 activated kinase 4 pak4 with pyrazolo 3 4 d pyrimidine derivative spa7012 attenuates hepatic ischaemia reperfusion injury in mice
topic PAK4
pyrazolo[3,4-d]pyrimidine
liver
ischaemia-reperfusion
hypoxia-reoxygenation
Nrf2
url https://www.tandfonline.com/doi/10.1080/14756366.2022.2106478
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