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Zhang X, Lei Y, Zhou H, Liu H, Xu P. The Role of PKM2 in Multiple Signaling Pathways Related to Neurological Diseases. Mol Neurobiol 2024; 61:5002-5026. [PMID: 38157121 DOI: 10.1007/s12035-023-03901-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Pyruvate kinase M2 (PKM2) is a key rate-limiting enzyme in glycolysis. It is well known that PKM2 plays a vital role in the proliferation of tumor cells. However, PKM2 can also exert its biological functions by mediating multiple signaling pathways in neurological diseases, such as Alzheimer's disease (AD), cognitive dysfunction, ischemic stroke, post-stroke depression, cerebral small-vessel disease, hypoxic-ischemic encephalopathy, traumatic brain injury, spinal cord injury, Parkinson's disease (PD), epilepsy, neuropathic pain, and autoimmune diseases. In these diseases, PKM2 can exert various biological functions, including regulation of glycolysis, inflammatory responses, apoptosis, proliferation of cells, oxidative stress, mitochondrial dysfunction, or pathological autoimmune responses. Moreover, the complexity of PKM2's biological characteristics determines the diversity of its biological functions. However, the role of PKM2 is not entirely the same in different diseases or cells, which is related to its oligomerization, subcellular localization, and post-translational modifications. This article will focus on the biological characteristics of PKM2, the regulation of PKM2 expression, and the biological role of PKM2 in neurological diseases. With this review, we hope to have a better understanding of the molecular mechanisms of PKM2, which may help researchers develop therapeutic strategies in clinic.
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Affiliation(s)
- Xiaoping Zhang
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Yihui Lei
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Hongyan Zhou
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Haijun Liu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Ping Xu
- Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
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Ma L, Li H, Xu H, Liu D. The potential roles of PKM2 in cerebrovascular diseases. Int Immunopharmacol 2024; 139:112675. [PMID: 39024754 DOI: 10.1016/j.intimp.2024.112675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 07/06/2024] [Accepted: 07/10/2024] [Indexed: 07/20/2024]
Abstract
Pyruvate kinase M2 (PKM2), a key enzyme involved in glycolysis,plays an important role in regulating cell metabolism and growth under different physiological conditions. PKM2 has been intensively investigated in multiple cancer diseases. Recent years, many studies have found its pivotal role in cerebrovascular diseases (CeVDs), the disturbances in intracranial blood circulation. CeVDs has been confirmed to be closely associated with oxidative stress (OS), mitochondrial dynamics, systemic inflammation, and local neuroinflammation in the brain. It has further been revealed that PKM2 exerts various biological functions in the regulation of energy supply, OS, inflammatory responses, and mitochondrial dysfunction. The roles of PKM2 are closely related to its different isoforms, expression levels in subcellular localization, and post-translational modifications. Therefore, summarizing the roles of PKM2 in CeVDs will help further understanding the molecular mechanisms of CeVDs. In this review, we illustrate the characteristics of PKM2, the regulated PKM2 expression, and the biological roles of PKM2 in CeVDs.
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Affiliation(s)
- Ling Ma
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, Shandong 250033, China
| | - Huatao Li
- Department of Stroke Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China
| | - Hu Xu
- Department of Stroke Center, Shandong Second Medical University, Weifang, Shandong 261000, China
| | - Dianwei Liu
- Department of Stroke Center, Central Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250013, China; Department of Neurosurgery, XuanWu Hospital Capital Medical University Jinan Branch, Jinan, Shandong 250100, China.
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3
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Zhong Y, Jia B, Xie C, Hu L, Liao Z, Liu W, Zhang Y, Huang G. Adenylate kinase 4 promotes neuronal energy metabolism and mitophagy in early cerebral ischemia via Parkin/PKM2 pathway. Exp Neurol 2024; 377:114798. [PMID: 38670251 DOI: 10.1016/j.expneurol.2024.114798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
Mitochondrial dysfunction is closely related to brain injury and neurological dysfunction in ischemic stroke. Adenylate kinase 4 (AK4) plays a critical role in energy metabolism and mitochondrial homeostasis. However, the underlying mechanisms remain unclear. In the present study, we demonstrated an important role of AK4 in mitochondrial dysfunction in the early cerebral ischemia. Early focal cerebral ischemia induced decrease of AK4 protein expression in ischemic hemispheric brain tissue in mice. Exposure of cultured primary neuron to oxygen-glucose deprivation (OGD) also induced AK4 downregulation. Overexpression of AK4 in neuron using adeno-associated virus (AAV-AK4) in mice promoted neuronal survival reflected by decreased infarction volume and TUNEL staining. AK4 overexpression inhibited mitochondrial decline and downregulation of energy metabolism-associated proteins (p-AMPK and ATP1A3) induced by MCAO. Moreover, AK4 knock-in using lentivirus carried AK4 vector (LV-AK4) induced energy metabolism shift from glycolysis to oxidation in neuron. Using transmission electron microscope and western blot, we revealed that AK4 overexpression promoted mitophagy and mitophagy-associated proteins expression PINK1 and Parkin after MCAO. Mass spectrometry and co-immunoprecipitation revealed an interaction between AK4 and PKM2. Mechanistically, AK4 indirectly decreased PKM2 expression via enhancing its ubiquitination by increasing the interaction between PKM2 and its ubiquitin E3 ligase Parkin, and inhibits Parkin downregulation. In conclusion, our data demonstrate that AK4/ Parkin /PKM axis prevents cerebral ischemia damage via regulation of neuronal energy metabolism model and mitophagy. AK4 was a new target for intervention of early ischemic neuron injury.
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Affiliation(s)
- Yunxue Zhong
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China; Department of Neurosurgery, Graduate Collaborative Training Base of Shenzhen Second People's Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Bingbing Jia
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China; Department of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Guangxi University of Chinese Medicine, Shenzhen 518035, China
| | - Cong Xie
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Linghui Hu
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China; Department of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Graduate School of Guangzhou Medical University, Shenzhen 518035, China
| | - Zijun Liao
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China
| | - Wenlan Liu
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
| | - Yuan Zhang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
| | - Guodong Huang
- Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen 518035, China.
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Wang YH, Gao P, Wang YQ, Xu LZ, Zeng KW, Tu PF. Small-molecule targeting PKM2 provides a molecular basis of lactylation-dependent fibroblast-like synoviocytes proliferation inhibition against rheumatoid arthritis. Eur J Pharmacol 2024; 972:176551. [PMID: 38570082 DOI: 10.1016/j.ejphar.2024.176551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 03/07/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
Fibroblast-like synoviocytes (FLS) play an important role in rheumatoid arthritis (RA)-related swelling and bone damage. Therefore, novel targets for RA therapy in FLS are urgently discovered for improving pathologic phenomenon, especially joint damage and dyskinesia. Here, we suggested that pyruvate kinase M2 (PKM2) in FLS represented a pharmacological target for RA treatment by antimalarial drug artemisinin (ART). We demonstrated that ART selectively inhibited human RA-FLS and rat collagen-induced arthritis (CIA)-FLS proliferation and migration without observed toxic effects. In particular, the identification of targets revealed that PKM2 played a crucial role as a primary regulator of the cell cycle, leading to the heightened proliferation of RA-FLS. ART exhibited a direct interaction with PKM2, resulting in an allosteric modulation that enhances the lactylation modification of PKM2. This interaction further promoted the binding of p300, ultimately preventing the nuclear translocation of PKM2 and inducing cell cycle arrest at the S phase. In vivo, ART obviously suppressed RA-mediated synovial hyperplasia, bone damage and inflammatory response to further improve motor behavior in CIA-rats. Taken together, these findings indicate that directing interventions towards PKM2 in FLS could offer a hopeful avenue for pharmaceutical treatments of RA through the regulation of cell cycle via PKM2 lactylation.
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Affiliation(s)
- Yan-Hang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Peng Gao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Yu-Qi Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Lu-Zheng Xu
- Proteomics Laboratory, Medical and Healthy Analytical Center, Peking University Health Science Center, Beijing, 100191, China
| | - Ke-Wu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
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Rehill AM, Leon G, McCluskey S, Schoen I, Hernandez-Santana Y, Annett S, Klavina P, Robson T, Curtis AM, Renné T, Hussey S, O'Donnell JS, Walsh PT, Preston RJS. Glycolytic reprogramming fuels myeloid cell-driven hypercoagulability. J Thromb Haemost 2024; 22:394-409. [PMID: 37865288 DOI: 10.1016/j.jtha.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 10/06/2023] [Accepted: 10/06/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Myeloid cell metabolic reprogramming is a hallmark of inflammatory disease; however, its role in inflammation-induced hypercoagulability is poorly understood. OBJECTIVES We aimed to evaluate the role of inflammation-associated metabolic reprogramming in regulating blood coagulation. METHODS We used novel myeloid cell-based global hemostasis assays and murine models of immunometabolic disease. RESULTS Glycolysis was essential for enhanced activated myeloid cell tissue factor expression and decryption, driving increased cell-dependent thrombin generation in response to inflammatory challenge. Similarly, inhibition of glycolysis enhanced activated macrophage fibrinolytic activity through reduced plasminogen activator inhibitor 1 activity. Macrophage polarization or activation markedly increased endothelial protein C receptor (EPCR) expression on monocytes and macrophages, leading to increased myeloid cell-dependent protein C activation. Importantly, inflammation-dependent EPCR expression on tissue-resident macrophages was also observed in vivo. Adipose tissue macrophages from obese mice fed a high-fat diet exhibited significantly enhanced EPCR expression and activated protein C generation compared with macrophages isolated from the adipose tissue of healthy mice. Similarly, the induction of colitis in mice prompted infiltration of EPCR+ innate myeloid cells within inflamed colonic tissue that were absent from the intestinal tissue of healthy mice. CONCLUSION Collectively, this study identifies immunometabolic regulation of myeloid cell hypercoagulability, opening new therapeutic possibilities for targeted mitigation of thromboinflammatory disease.
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Affiliation(s)
- Aisling M Rehill
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland. https://twitter.com/aislingrehill
| | - Gemma Leon
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland
| | - Sean McCluskey
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland
| | - Ingmar Schoen
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Yasmina Hernandez-Santana
- National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland; Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Ireland
| | - Stephanie Annett
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Paula Klavina
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Tracy Robson
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Annie M Curtis
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Thomas Renné
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Seamus Hussey
- National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland; Department of Paediatrics, University College Dublin and Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - James S O'Donnell
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland
| | - Patrick T Walsh
- National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland; Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Ireland
| | - Roger J S Preston
- Irish Centre for Vascular Biology, School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland University of Medicine and Health Sciences, Dublin, Ireland; National Children's Research Centre, Children's Health Ireland Crumlin, Dublin, Ireland.
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Fang Y, Zhao T, Ni H, Li Y, Zhu Y, Gao R, Zhang L, Jia Z, Chen G. USP11 exacerbates neuronal apoptosis after traumatic brain injury via PKM2-mediated PI3K/AKT signaling pathway. Brain Res 2023; 1807:148321. [PMID: 36898475 DOI: 10.1016/j.brainres.2023.148321] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/05/2023] [Accepted: 03/06/2023] [Indexed: 03/12/2023]
Abstract
Ubiquitin-specific protease 11 (USP11) is a ubiquitin-specific protease involved in the regulation of protein ubiquitination. However, its role in traumatic brain injury (TBI) remains unclear. This experiment suggests that USP11 is possibly involved in regulating neuronal apoptosis in TBI. Therefore, we use precision impactor device to established a TBI rat model and assayed the role of USP11 by overexpressing and inhibiting USP11. We found that Usp11 expression increased after TBI. In addition, we hypothesized that pyruvate kinase M2 (PKM2) is a potential USP11 target and experimentally confirmed that upregulation of Usp11 increased Pkm2 expression. Furthermore, elevated USP11 levels exacerbate blood-brain barrier damage, brain edema, and neurobehavioral impairment and cause apoptosis induction through Pkm2 upregulation. Moreover, we hypothesize that PKM2-induced neuronal apoptosis is mediated by the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway. Our findings were confirmed by changes in Pi3k and Akt expression with Usp11 upregulation and downregulation and PKM2 inhibition. In conclusion, our findings show that USP11 exacerbates injury in TBI through PKM2 and causes neurological impairment and neuronal apoptosis through the PI3K/AKT signaling pathway.
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Affiliation(s)
- Yiling Fang
- Department of General Practice, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Tianheng Zhao
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Haibo Ni
- Department of Neurosurgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Yajun Li
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, China
| | - Yongkui Zhu
- Department of Intensive Care Unit, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Rong Gao
- Department of Neurosurgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Li Zhang
- Department of Neurosurgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China.
| | - Zhenyu Jia
- Department of General Practice, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China.
| | - Gang Chen
- Department of Neurosurgery and Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
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Wang J, Hua M, Li H, Xu D, Li F, Xu F. Circ_0007706 downregulation ameliorates neonatal hypoxic ischemic encephalopathy via regulating the miR-579-3p/TRAF6 axis. Brain Res Bull 2023; 194:90-99. [PMID: 36720318 DOI: 10.1016/j.brainresbull.2023.01.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/14/2022] [Accepted: 01/27/2023] [Indexed: 01/31/2023]
Abstract
BACKGROUND Neonatal hypoxic ischemic encephalopathy (HIE) is a main factor of neonatal death and permanent neurologic deficit. This study sought to investigate the functional role of hsa_circ_0007706 (circ_0007706) in modulating neonatal HIE. METHODS In vitro HIE cell model was established in hBMVECs under the condition of oxygen‑glucose deprivation/reperfusion (OGD/R) treatment. qRT-PCR analysis was utilized for detecting the level of circ_0007706, microRNA-579-3p (miR-579-3p) and TNF receptor-associated factor 6 (TRAF6). RNase R treatment and Oligo (dT) 18 primers were employed to verify the features of circ_0007706, and nucleocytoplasmic separation was conducted for determining the location of circ_0007706. CCK-8 assay, EdU assay, and flow cytometry were carried out to measure cell proliferation and apoptosis, respectively. The protein expression of Bax, Bcl-2 and TRAF6 was detected using western blot. Meanwhile, the levels of the pro-inflammatory factors were determined via ELISA. SOD activity and MDA level were assessed via the respective kits. Besides, dual-luciferase reporter assay and RNA pull-down were used to identify the association between miR-579-3p and circ_0007706 or TRAF6. RESULTS Circ_0007706 was elevated in HIE newborns and OGD/R cell model. Knockdown of circ_0007706 greatly alleviated OGD/R-induced injury, inflammatory response and oxidative stress. We found that miR-579-3p was a direct target of circ_0007706, and miR-579-3p inhibitor could reverse the impact of circ_0007706 knockdown on OGD/R-caused cell damage in hBMVECs. In addition, miR-579-3p directly interacted with TRAF6, and the protective effects of miR-579-3p on OGD/R-induced injury in hBMVECs were harbored by TRAF6 overexpression. Our data indicated that circ_0007706 knockdown could downregulate the expression of TRAF6 by sponging miR-579-3p in OGD/R-treated hBMVECs. CONCLUSION This study demonstrated that circ_0007706 knockdown assuaged HIE-induced injury by decreasing TRAF6 expression via targeting miR-579-3p.
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Affiliation(s)
- Jinguang Wang
- Department of Neonatology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Minmin Hua
- Department of Neonatology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Huixin Li
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Dan Xu
- Department of Neurology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Fangfang Li
- Department of Respiratory Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Falin Xu
- Department of Neonatology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
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Zhao Z, Li Y, Chi F, Ma L, Li Y, Hou Z, Wang Q. Sevoflurane postconditioning ameliorates cerebral ischemia-reperfusion injury in rats via TLR4/MyD88/TRAF6 signaling pathway. Aging (Albany NY) 2022; 14:10153-10170. [PMID: 36585924 PMCID: PMC9831726 DOI: 10.18632/aging.204461] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/22/2022] [Indexed: 01/01/2023]
Abstract
To determine whether sevoflurane postconditioning protects against cerebral ischemia reperfusion (I/R) injury and its potential mechanism, we employed bioinformatic analysis, neurological assessments, and western blot analysis, as well as triphenyl tetrazolium chloride, hematoxylin and eosin, Nissl, and immunofluorescence staining. We identified 103 differentially expressed genes induced by cerebral I/R, including 75 upregulated genes and 28 downregulated genes enriched for certain biological processes (involving regulation of inflammatory responses, cellular responses to interleukin 1, and chemokine activity) and signaling pathways (such as transcriptional misregulation in cancer, interleukin-17 signaling, rheumatoid arthritis, MAPK signaling, and Toll-like receptor signaling). As a typical path in Toll-like receptor signaling pathway, in the current study, we investigated the protective effect of sevoflurane postconditioning in cerebral I/R rats and further explore the role of TLR4/MyD88/TRAF6 signaling pathway in it. The results showed cerebral I/R-induced neurological deficits were comparatively less severe following sevoflurane postconditioning. In addition, TLR4/MyD88/TRAF6 signaling pathway-related proteins and neuropathic damage were ameliorated in aged rats following sevoflurane postconditioning, while the TLR4 agonist lipopolysaccharide aggravated these changes. Together, these findings suggest that sevoflurane postconditioning ameliorates cerebral I/R injury by a mechanism involving inhibition of the TLR4/MyD88/TRAF6 signaling pathway to suppress neuroinflammatory responses.
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Affiliation(s)
- Zijun Zhao
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China,Department of Anesthesiology, Hebei Provincial Chest Hospital, Shijiazhuang 050047, Hebei, China
| | - Yishuai Li
- Department of Thoracic Surgery, Hebei Provincial Chest Hospital, Shijiazhuang 050047, Hebei, China
| | - Fei Chi
- Department of Oncology, Hebei Provincial Chest Hospital, Shijiazhuang 050047, Hebei, China
| | - Li Ma
- Surgical Department of Clinical Medicine, Shijiazhuang People’s Medical College, Shijiazhuang 050091, Hebei, China
| | - Yanan Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Zhiyong Hou
- Department of Orthopaedics, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Qiujun Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
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Panax notoginseng saponins alleviates inflammation induced by microglial activation and protects against ischemic brain injury via inhibiting HIF-1α/PKM2/STAT3 signaling. Biomed Pharmacother 2022; 155:113479. [DOI: 10.1016/j.biopha.2022.113479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/02/2022] Open
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Rihan M, Sharma SS. Role of Pyruvate Kinase M2 (PKM2) in Cardiovascular Diseases. J Cardiovasc Transl Res 2022; 16:382-402. [PMID: 36178660 DOI: 10.1007/s12265-022-10321-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 09/07/2022] [Indexed: 11/29/2022]
Abstract
Cardiovascular diseases (CVDs) are the world's leading cause of death, accounting for 32% of all fatalities. Although therapeutic agents are available for CVDs, however, most of them have significant limitations such as the time-dependency effect, hypotension, and bradycardia. To overcome the limitations of current pharmacological therapies, new molecular targets and pathways need to be identified and investigated to provide better treatment options for CVDs. Recent evidence suggested the involvement of pyruvate kinase M2 (PKM2) and targeting PKM2 by its modulators (inhibitors and activators) has shown promising results in several CVDs. PKM2 regulates gene activation in the context of apoptosis, mitosis, hypoxia, inflammation, and metabolic reprogramming. PKM2 modulators might have a significant impact on the molecular pathways involved in CVD pathogenesis. Therefore, PKM2 modulators can be one of the therapeutic options for CVDs. This review provides an insight into PKM2 involvement in various CVDs along with their therapeutic potential.
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Affiliation(s)
- Mohd Rihan
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Punjab, India
| | - Shyam Sunder Sharma
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Punjab, India.
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Li F. LncRNA SNHG14 promoted inflammation of cerebral apoplexy by miR-124-3p/TRAF6 axis. Mol Cell Toxicol 2022. [DOI: 10.1007/s13273-021-00197-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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