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Wang WL, Wu XY, Luo XY, Tang YQ, Cui J, Huang XY, Jiang YC, Liu Y, Li LM. Immunosuppressive alkaloids from Narcissus tazetta subsp. Chinensis and the mechanism of (+)-narciclasine in vitro and in vivo. PHYTOCHEMISTRY 2024; 225:114198. [PMID: 38936528 DOI: 10.1016/j.phytochem.2024.114198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 06/23/2024] [Accepted: 06/24/2024] [Indexed: 06/29/2024]
Abstract
Three previously undescribed and sixteen known alkaloids were bioguidedly isolated from the bulbs of Narcissus tazetta subsp. chinensis (M.Roem.) Masamura & Yanagih. The structures were elucidated by spectroscopic data, including HRESIMS, NMR, and ECD. Eleven of the isolated alkaloids exhibited immunosuppressive activity on the proliferation of human T cells. (+)-Narciclasine (18) showed the most significantly suppressive activity with an IC50 value of 14 ± 5 nM. In vitro, (+)-narciclasine (18) blocked NF-κB signal transduction, but did not affect PI3K/AKT signal transduction. What was more, (+)-narciclasine significantly reduced ALT and AST levels and alleviated liver damage induced by ConA in AIH mouse model.
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Affiliation(s)
- Wen-Ling Wang
- College of Pharmacy, Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, Southwest Minzu University, Chengdu, 610041, China; Research Center, Chengdu Medical College, Chengdu, 610500, China
| | - Xiu-Yin Wu
- Research Center, Chengdu Medical College, Chengdu, 610500, China
| | - Xing-Yan Luo
- Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, China; Research Center, Chengdu Medical College, Chengdu, 610500, China
| | - Yu-Qin Tang
- Research Center, Chengdu Medical College, Chengdu, 610500, China
| | - Jia Cui
- College of Pharmacy, Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, Southwest Minzu University, Chengdu, 610041, China
| | - Xin-Yue Huang
- College of Pharmacy, Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, Southwest Minzu University, Chengdu, 610041, China
| | - Yu-Chen Jiang
- College of Pharmacy, Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, Southwest Minzu University, Chengdu, 610041, China
| | - Yang Liu
- Department of Gastroenterology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, 610500, China; Research Center, Chengdu Medical College, Chengdu, 610500, China.
| | - Li-Mei Li
- College of Pharmacy, Key Laboratory of Research and Application of Ethnic Medicine Processing and Preparation on the Qinghai Tibet Plateau, Southwest Minzu University, Chengdu, 610041, China.
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Huang YT, Chiu LY, Lu PH, Hsiao PF, Wang JY, Lu PH, Wu NL. AMPK activation modulates IL-36-induced inflammatory responses by regulating IκBζ expression in the skin. Br J Pharmacol 2024; 181:2429-2442. [PMID: 38532634 DOI: 10.1111/bph.16354] [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: 05/21/2023] [Revised: 12/27/2023] [Accepted: 01/21/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND AND PURPOSE The interleukin (IL)-36 pathway is a critical player in the pathogenesis of pustular psoriasis. However, therapies targeting this pathway are limited or unaffordable (e.g. the anti-IL-36 receptor antibody). AMP-activated protein kinase (AMPK), a regulator of cellular energy and metabolism, is known to participate in inflammatory diseases. However, its role in IL-36-induced skin inflammation remains unclear. Therefore, we sought to investigate the role of AMPK signals in regulating IL-36-induced responses in the skin. EXPERIMENTAL APPROACH IL-36-stimulated primary normal human epidermal keratinocytes (NHEKs) and IL-36-injected (intradermally) BALB/c mice served as the cell and animal models, respectively. Additionally, 5-aminoimidazole-4-carboxamide riboside (AICAR) and A769662 served as AMPK activators. KEY RESULTS AICAR and A769662 significantly suppressed the IL-36-induced IL-8 (CXCL8) and CCL20 production from NHEKs. IL-36-induced IκBζ protein expression was prominently reduced and IKK/IκBα phosphorylation was attenuated by AICAR and A769662. Conversely, AMPKα knockdown increased IκBζ protein expression and IKK/IκBα phosphorylation in IL-36-treated NHEKs. Furthermore, AICAR and A769662 enhanced IL-36-induced-IκBζ protein degradation via the proteasome-dependent but not the lysosome-dependent pathway. Pretreatment of NHEKs with IL-36 slightly suppressed the AICAR- and A769662-triggered phosphorylation of AMPK and acetyl-CoA carboxylase. In the mouse model, topical application of AICAR significantly reduced ear swelling, redness, epidermal thickening, neutrophil infiltration and inflammatory and antimicrobial peptide gene expression. CONCLUSION AND IMPLICATIONS AMPK activation suppresses IL-36-induced IL-8 and CCL20 release by regulating IκBζ expression in keratinocytes and reduces IL-36-induced skin inflammation in mice, suggesting that AMPK activation is a potential strategy for treating patients with IL-36-mediated inflammatory skin disorders.
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Affiliation(s)
- Yi-Ting Huang
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Ling-Ya Chiu
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
- Department of Nursing, MacKay Medical College, New Taipei City, Taiwan
| | - Po-Hsuan Lu
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
- Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Pa-Fan Hsiao
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
- Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan
- MacKay Junior College of Medicine, Nursing and Management, Taipei, Taiwan
| | - Jen-Yu Wang
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
- Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan
- MacKay Junior College of Medicine, Nursing and Management, Taipei, Taiwan
| | - Ping-Hsun Lu
- Department of Chinese Medicine, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien, Taiwan
| | - Nan-Lin Wu
- Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
- Department of Dermatology, MacKay Memorial Hospital, Taipei, Taiwan
- MacKay Junior College of Medicine, Nursing and Management, Taipei, Taiwan
- Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan
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Xiao Y, Liang Z, Qiao J, Zhu Z, Liu B, Tian Y. BRD7 facilitates ferroptosis via modulating clusterin promoter hypermethylation and suppressing AMPK signaling in diabetes-induced testicular damage. Mol Med 2024; 30:100. [PMID: 38992588 PMCID: PMC11241864 DOI: 10.1186/s10020-024-00868-x] [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: 03/13/2024] [Accepted: 06/23/2024] [Indexed: 07/13/2024] Open
Abstract
BACKGROUND Diabetes mellitus (DM)-induced testicular damage is associated with sexual dysfunction and male infertility in DM patients. However, the pathogenesis of DM-induced testicular damage remains largely undefined. METHODS A streptozotocin (STZ)-induced diabetic model and high glucose (HG)-treated in vitro diabetic model were established. The histological changes of testes were assessed by H&E staining. Serum testosterone, iron, MDA and GSH levels were detected using commercial kits. Cell viability and lipid peroxidation was monitored by MTT assay and BODIPY 581/591 C11 staining, respectively. qRT-PCR, immunohistochemistry (IHC) or Western blotting were employed to detect the levels of BRD7, Clusterin, EZH2 and AMPK signaling molecules. The associations among BRD7, EZH2 and DNMT3a were detected by co-IP, and the transcriptional regulation of Clusterin was monitored by methylation-specific PCR (MSP) and ChIP assay. RESULTS Ferroptosis was associated with DM-induced testicular damage in STZ mice and HG-treated GC-1spg cells, and this was accompanied with the upregulation of BRD7. Knockdown of BRD7 suppressed HG-induced ferroptosis, as well as HG-induced Clusterin promoter methylation and HG-inactivated AMPK signaling in GC-1spg cells. Mechanistical studies revealed that BRD7 directly bound to EZH2 and regulated Clusterin promoter methylation via recruiting DNMT3a. Knockdown of Clusterin or inactivation of AMPK signaling reverses BRD7 silencing-suppressed ferroptosis in GC-1spg cells. In vivo findings showed that lack of BRD7 protected against diabetes-induced testicular damage and ferroptosis via increasing Clusterin expression and activating AMPK signaling. CONCLUSION BRD7 suppressed Clusterin expression via modulating Clusterin promoter hypermethylation in an EZH2 dependent manner, thereby suppressing AMPK signaling to facilitate ferroptosis and induce diabetes-associated testicular damage.
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Affiliation(s)
- Yuehai Xiao
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Clinical Medical College of Guizhou Medical University, No.28 Guiyi Street, Yunyan District, Guiyang, Guizhou Province, 550004, China
| | - Zongjian Liang
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Clinical Medical College of Guizhou Medical University, No.28 Guiyi Street, Yunyan District, Guiyang, Guizhou Province, 550004, China
| | - Jun Qiao
- Department of Urology, School of Nursing, Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, Guizhou Province, 550004, China
| | - Zhiqiang Zhu
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Clinical Medical College of Guizhou Medical University, No.28 Guiyi Street, Yunyan District, Guiyang, Guizhou Province, 550004, China
| | - Bei Liu
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Clinical Medical College of Guizhou Medical University, No.28 Guiyi Street, Yunyan District, Guiyang, Guizhou Province, 550004, China
| | - Yuan Tian
- Department of Urology, Affiliated Hospital of Guizhou Medical University, Clinical Medical College of Guizhou Medical University, No.28 Guiyi Street, Yunyan District, Guiyang, Guizhou Province, 550004, China.
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Gong S, Chen J, Zheng X, Lu X, Chen M, Li J, Su Z, Liu Y, Chen J, Xie J, Xie Q, Li Y. Kidney targeting and modulating macrophage polarization through AMPK signaling: Therapeutic mechanism of berberine in uric acid nephropathy. Int Immunopharmacol 2024; 138:112632. [PMID: 38986300 DOI: 10.1016/j.intimp.2024.112632] [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: 06/05/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024]
Abstract
Uric acid nephropathy (UAN), caused by a common metabolic disorder resulting from hyperuricemia (HUA), has an increasing incidence. Previous studies have shown that berberine (BBR) has clear urate-lowering and anti-inflammatory effects in UAN mice, but its mechanism needs to be further clarified. Therefore, Potassium Oxonate (PO) combined with hypoxanthine (HX) induced UAN mice model and MSU induced THP-1 cells polarization model were adopted to investigate the mechanism of BBR on UAN in terms of tissue distribution and molecular pharmacology. Study unveiled that BBR was first found to bind to red blood cells (RBCs), which were recognized and phagocytosed by monocytes, then recruited by the injured kidney. Subsequently, BBR was enriched and functional in damaged kidney. The results of in vivo experiments revealed that, BBR reduced UA, BUN, CRE levels as well as the release of TNF-α, IL-1β, IL-18 and IL-6, and alleviated renal injury in UAN mice, as consistent with previous studies. Additionally, BBR decreased MCP-1 expression, while diminishing macrophage infiltration and decreasing M1 proportion as determined by RT-qPCR. In vitro experiments, demonstrated that MSU promoted inflammatory polarization of THP-1 cells, while BBR reduced synthesis of inflammatory factors and inhibited MSU-induced inflammatory polarization. These effects of BBR were dependent on AMPK activation along with indirect inhibition of NF-κB signaling pathway mediated. However, the anti-inflammatory and macrophage polarization regulation effects of BBR were completely reversed upon administration of Compound C, an AMPK inhibitor. Therefore, BBR ameliorated kidney injury via regulating macrophage polarization through AMPK, which has therapeutic potential for UAN patients.
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Affiliation(s)
- Shiting Gong
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, China
| | - Jingzhi Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaohong Zheng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiaowei Lu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Manru Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jincan Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Ziren Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yuhong Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, China
| | - Jiannan Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, China
| | - Jianhui Xie
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Qingfeng Xie
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
| | - Yucui Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China; Dongguan Institute of Guangzhou University of Chinese Medicine, Dongguan 523808, China.
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Zhang Y, Li J, Qiu Z, Huang L, Yang S, Li J, Li K, Liang Y, Liu X, Chen Z, Li J, Zhou B. Insights into the mechanism of action of pterostilbene against influenza A virus-induced acute lung injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155534. [PMID: 38583346 DOI: 10.1016/j.phymed.2024.155534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 03/01/2024] [Accepted: 03/12/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Severe respiratory system illness caused by influenza A virus infection is associated with excessive inflammation and abnormal apoptosis in alveolar epithelial cells (AEC). However, there are limited therapeutic options for influenza-associated lung inflammation and apoptosis. Pterostilbene (PTE, trans-3,5-dimethoxy-4-hydroxystilbene) is a dimethylated analog of resveratrol that has been reported to limit influenza A virus infection by promoting antiviral innate immunity, but has not been studied for its protective effects on virus-associated inflammation and injury in AEC. PURPOSE Our study aimed to investigate the protective effects and underlying mechanisms of PTE in modulating inflammation and apoptosis in AEC, as well as its effects on macrophage polarization during influenza virus infection. STUDY DESIGN AND METHODS A murine model of influenza A virus-mediated acute lung injury was established by intranasal inoculation with 5LD50 of mouse-adapted H1N1 viruses. Hematoxylin and eosin staining, immunofluorescence, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, western blotting, Luminex and flow cytometry were performed. RESULTS PTE effectively mitigated lung histopathological changes and injury induced by H1N1 viruses in vivo. These beneficial effects of PTE were attributed to the suppression of inflammation and apoptosis in AEC, as well as the modulation of M1 macrophage polarization. Mechanistic investigations revealed that PTE activated the phosphorylated AMP-activated protein kinase alpha (P-AMPKα)/sirtui1 (Sirt1)/PPARγ coactivator 1-alpha (PGC1α) signal axis, leading to the inhibition of nuclear factor kappa-B (NF-κB) and p38 mitogen-activated protein kinase (MAPK) signaling induced by H1N1 viruses, thereby attenuating inflammation and apoptosis in AEC. PTE also forced activation of the P-AMPKα/Sirt1/PGC1α signal axis in RAW264.7 cells, counteracting the activation of phosphorylated signal transducer and activator of transcription 1 (P-STAT1) induced by H1N1 viruses and the augment of P-STAT1 activation in RAW264.7 cells with interferon-gamma (IFN-γ) pretreatment before viral infection, thereby reducing H1N1 virus-mediated M1 macrophage polarization as well as the enhancement of macrophages into M1 phenotypes elicited by IFN-γ pretreatment. Additionally, the promotion of the transition of macrophages towards the M2 phenotype by PTE was also related to activation of the P-AMPKα/Sirt1/PGC1α signal axis. Moreover, co-culturing non-infected AEC with H1N1 virus-infected RAW264.7 cells in the presence of PTE inhibited apoptosis and tight junction disruption, which was attributed to the suppression of pro-inflammatory mediators and pro-apoptotic factors in an AMPKα-dependent manner. CONCLUSION In conclusion, our findings suggest that PTE may serve as a promising novel therapeutic option for treating influenza-associated lung injury. Its ability to suppress inflammation and apoptosis in AEC, modulate macrophage polarization, and preserve alveolar epithelial cell integrity highlights its potential as a therapeutic agent in influenza diseases.
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Affiliation(s)
- Yuehan Zhang
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Jiashun Li
- Huadu District People's Hospital of Guangzhou, Huadu, 510800, PR China
| | - Zhenhua Qiu
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Linyan Huang
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Sushan Yang
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Jinfeng Li
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Kunlang Li
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Yueyun Liang
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Xuanyu Liu
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Zecheng Chen
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China
| | - Jing Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, Institute of Chinese Integrative Medicine, Guangdong-Hongkong-Macao Joint Laboratory of Infectious Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, PR China.
| | - Beixian Zhou
- The People's Hospital of Gaozhou, Gaozhou 525200, PR China; Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, PR China.
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Salminen A, Kaarniranta K, Kauppinen A. Tissue fibroblasts are versatile immune regulators: An evaluation of their impact on the aging process. Ageing Res Rev 2024; 97:102296. [PMID: 38588867 DOI: 10.1016/j.arr.2024.102296] [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: 12/18/2023] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
Fibroblasts are abundant stromal cells which not only control the integrity of extracellular matrix (ECM) but also act as immune regulators. It is known that the structural cells within tissues can establish an organ-specific immunity expressing many immune-related genes and closely interact with immune cells. In fact, fibroblasts can modify their immune properties to display both pro-inflammatory and immunosuppressive activities in a context-dependent manner. After acute insults, fibroblasts promote tissue inflammation although they concurrently recruit immunosuppressive cells to enhance the resolution of inflammation. In chronic pathological states, tissue fibroblasts, especially senescent fibroblasts, can display many pro-inflammatory and immunosuppressive properties and stimulate the activities of different immunosuppressive cells. In return, immunosuppressive cells, such as M2 macrophages and myeloid-derived suppressor cells (MDSC), evoke an excessive conversion of fibroblasts into myofibroblasts, thus aggravating the severity of tissue fibrosis. Single-cell transcriptome studies on fibroblasts isolated from aged tissues have confirmed that tissue fibroblasts express many genes coding for cytokines, chemokines, and complement factors, whereas they lose some fibrogenic properties. The versatile immune properties of fibroblasts and their close cooperation with immune cells indicate that tissue fibroblasts have a crucial role in the aging process and age-related diseases.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland.
| | - Kai Kaarniranta
- Department of Ophthalmology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland; Department of Ophthalmology, Kuopio University Hospital, P.O. Box 100, KYS FI-70029, Finland
| | - Anu Kauppinen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O. Box 1627, Kuopio FI-70211, Finland
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Ma T, Chen P, Dong H, Wang X. Identification of key anti-neuroinflammatory components in Gastrodiae Rhizoma based on spectrum-effect relationships and its mechanism exploration. J Pharm Biomed Anal 2024; 248:116266. [PMID: 38879950 DOI: 10.1016/j.jpba.2024.116266] [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: 12/09/2023] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/18/2024]
Abstract
Gastrodiae Rhizoma was proven to have anti-inflammatory activity based on its main component of 4-hydroxybenzyl alcohol (4-HBA) and gastrodin (GAS). However, the anti-inflammatory activity of other phenols has been less reported. In this study, the n-BuOH extract was selected as the active anti-inflammatory part of Gastrodiae Rhizoma based on the LPS-induced inflammatory BV-2 cells. The spectral-effect relationship analysis of the n-BuOH extract showed the main effective components were GAS, 4-HBA, parishin A (PA), parishin B (PB), and parishin C (PC). Among them, PB could reduce LPS-induced expression of nitric oxide (NO), intracellular ROS, TNF-α, IL-6, inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2). Molecular docking predicted that PB had a good binding capacity to AMPKα and SIRT1 proteins of -12.1 kJ/mol and -7.6 kJ/mol, respectively. The Western Blot results further demonstrated that PB could inhibit NF-κB pathway by activating AMPK/SIRT1 pathway, thus exerting anti-LPS-induced neuroinflammatory effects. This study provides a referable idea for solving the problem of unclear action of TCM with complex compositions and is of great significance for the development of innovative medicines of traditional Chinese medicine.
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Affiliation(s)
- Tianyu Ma
- Key Laboratory for Applied Technology of Sophisticated Analytic Instrument of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Panpan Chen
- Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Hongjing Dong
- Key Laboratory for Applied Technology of Sophisticated Analytic Instrument of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xiao Wang
- Key Laboratory for Applied Technology of Sophisticated Analytic Instrument of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China; Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China.
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Tabaa MME, Tabaa MME, Rashad E, Elballal MS, Elazazy O. Harmine alleviated STZ-induced rat diabetic nephropathy: A potential role via regulating AMPK/Nrf2 pathway and deactivating ataxia-telangiectasia mutated (ATM) signaling. Int Immunopharmacol 2024; 132:111954. [PMID: 38554444 DOI: 10.1016/j.intimp.2024.111954] [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: 01/13/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/01/2024]
Abstract
Diabetic nephropathy (DN) is a serious kidney disorder driven by diabetes and affects people all over the world. One of the mechanisms promoting NF-κB-induced renal inflammation and injury has been theorized to be ATM signaling. On the other hand, AMPK, which can be activated by the naturally occurring alkaloid harmine (HAR), has been proposed to stop that action. As a result, the goal of this study was to evaluate the therapeutic effectiveness of HAR against streptozotocin (STZ)-induced DN in rats through AMPK-mediated inactivation of ATM pathways. Twenty male Wistar rats were grouped into 4 groups, as follow: CONT, DN, HAR (10 mg/kg), DN + HAR, where HAR was daily administered I.P. once for 2 weeks. The renal AMPK and PGC-1α expressions, as well as Sirt1 levels, were assessed. To ascertain the oxidative reactions, renal Nrf2 expression, HO-1, MDA, and TAC concentrations were measured. As parts of ATM pathways, ATM and p53 expressions, in addition to GSK-3β levels were determined. Renal expression of NEMO, TNF-α, and IL-6 levels were also estimated. Moreover, histopathological and immunohistochemical detection of Bcl-2, Bax, and caspase 3 were reported. Results indicated that HAR intake notably alleviated STZ-induced kidney damage by triggering AMPK and Sirt1, which in turn boosted PGC-1α, improved NRf2/HO-1 axis, and lowered ROS production. As a consequence, HAR blocked the ATM-triggered renal inflammation and minimized caspase-3 expression by repressing the Bax/Bcl2 ratio. Because of its ability to activate AMPK/Nrf2 axis, HAR may represent an emerging avenue for future DN therapy by blocking ATM pathways.
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Affiliation(s)
- Manar Mohammed El Tabaa
- Pharmacology & Environmental Toxicology, Environmental Studies & Research Institute (ESRI), University of Sadat City, Sadat City 32897, Menoufia, Egypt.
| | | | - Eman Rashad
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Egypt.
| | - Mohammed Salah Elballal
- Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt.
| | - Ola Elazazy
- Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt.
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Nasb M, Li F, Dayoub L, Wu T, Wei M, Chen N. Bridging the gap: Integrating exercise mimicry into chronic disease management through suppressing chronic inflammation. J Adv Res 2024:S2090-1232(24)00176-0. [PMID: 38704088 DOI: 10.1016/j.jare.2024.04.034] [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: 01/26/2024] [Revised: 03/25/2024] [Accepted: 04/30/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Chronic inflammation is a common hallmark of many chronic diseases. Although exercise holds paramount importance in preventing and managing chronic diseases, adherence to exercise programs can be challenging for some patients. Consequently, there is a pressing need to explore alternative strategies to emulate the anti-inflammatory effects of exercise for chronic diseases. AIM OF REVIEW This review explores the emerging role of green tea bioactive components as potential mitigators of chronic inflammation, offering insights into their capacity to mimic the beneficial effects of exercise. We propose that bioactive components in green tea are promising agents for suppressing chronic inflammation, suggesting their unique capability to replicate the health benefits of exercise. KEY SCIENTIFIC CONCEPTS OF REVIEW This review focuses on several key concepts, including chronic inflammation and its role in chronic diseases, the anti-inflammatory effects of regular exercise, and bioactive components in green tea responsible for its health benefits. It elaborates on scientific evidence supporting the anti-inflammatory properties of green tea bioactive components, such as epigallocatechin gallate (EGCG), and theorizes how these bioactive components might replicate the effects of exercise at a molecular level. Through a comprehensive analysis of current research, this review proposes a novel perspective on the application of green tea as a potential intervention strategy to suppress chronic inflammation, thereby extending the benefits akin to those achieved through exercise.
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Affiliation(s)
- Mohammad Nasb
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Fengxing Li
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Lamis Dayoub
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Tong Wu
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Minhui Wei
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China
| | - Ning Chen
- Tianjiu Research and Development Center for Exercise Nutrition and Foods, Hubei Key Laboratory of Exercise Training and Monitoring, College of Sports Medicine, Wuhan Sports University, Wuhan 430079, China.
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10
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Elmahboub Y, Albash R, Magdy William M, Rayan AH, Hamed NO, Ousman MS, Raslan NA, Mosallam S. Metformin Loaded Zein Polymeric Nanoparticles to Augment Antitumor Activity against Ehrlich Carcinoma via Activation of AMPK Pathway: D-Optimal Design Optimization, In Vitro Characterization, and In Vivo Study. Molecules 2024; 29:1614. [PMID: 38611893 PMCID: PMC11013883 DOI: 10.3390/molecules29071614] [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: 03/13/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Metformin (MET), an antidiabetic drug, is emerging as a promising anticancer agent. This study was initiated to investigate the antitumor effects and potential molecular targets of MET in mice bearing solid Ehrlich carcinoma (SEC) as a model of breast cancer (BC) and to explore the potential of zein nanoparticles (ZNs) as a carrier for improving the anticancer effect of MET. ZNs were fabricated through ethanol injection followed by probe sonication method. The optimum ZN formulation (ZN8) was spherical and contained 5 mg zein and 30 mg sodium deoxycholate with a small particle size and high entrapment efficiency percentage and zeta potential. A stability study showed that ZN8 was stable for up to three months. In vitro release profiles proved the sustained effect of ZN8 compared to the MET solution. Treatment of SEC-bearing mice with ZN8 produced a more pronounced anticancer effect which was mediated by upregulation of P53 and miRNA-543 as well as downregulation of NF-κB and miRNA-191-5p gene expression. Furthermore, ZN8 produced a marked elevation in pAMPK and caspase-3 levels as well as a significant decrease in cyclin D1, COX-2, and PGE2 levels. The acquired findings verified the potency of MET-loaded ZNs as a treatment approach for BC.
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Affiliation(s)
- Yasmina Elmahboub
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza 12585, Egypt;
| | - Rofida Albash
- Department of Pharmaceutics, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Giza 12585, Egypt;
| | - Mira Magdy William
- Department of Biochemistry, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt
| | - Amal H. Rayan
- Department of Medical Education, College of Medicine, AlMaarefa University, Diriyah, Riyadh 13713, Saudi Arabia
| | - Najat O. Hamed
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, AlMaarefa University, Diriyah, Riyadh 13713, Saudi Arabia;
| | - Mona S. Ousman
- Emergency Medical Services, College of Applied Sciences, AlMaarefa University, Diriyah, Riyadh 13713, Saudi Arabia;
| | - Nahed A Raslan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt;
- Clinical Pharmacy Program, College of Health Sciences and Nursing, Al-Rayan Colleges, Medina 42541, Saudi Arabia
| | - Shaimaa Mosallam
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt;
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11
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Rezaei S, Timani KA, He JJ. Metformin Treatment Leads to Increased HIV Transcription and Gene Expression through Increased CREB Phosphorylation and Recruitment to the HIV LTR Promoter. Aging Dis 2024; 15:831-850. [PMID: 37450926 PMCID: PMC10917544 DOI: 10.14336/ad.2023.0705] [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: 05/19/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023] Open
Abstract
Antiretroviral therapy has effectively suppressed HIV infection and replication and prolonged the lifespan of HIV-infected individuals. In the meantime, various complications including type 2 diabetes associated with the long-term antiviral therapy have shown steady increases. Metformin has been the front-line anti-hyperglycemic drug of choice and the most widely prescribed medication for the treatment of type 2 diabetes. However, little is known about the effects of Metformin on HIV infection and replication. In this study, we showed that Metformin treatment enhanced HIV gene expression and transcription in HIV-transfected 293T and HIV-infected Jurkat and human PBMC. Moreover, we demonstrated that Metformin treatment resulted in increased CREB expression and phosphorylation, and TBP expression. Furthermore, we showed that Metformin treatment increased the recruitment of phosphorylated CREB and TBP to the HIV LTR promoter. Lastly, we showed that inhibition of CREB phosphorylation/activation significantly abrogated Metformin-enhanced HIV gene expression. Taken together, these results demonstrated that Metformin treatment increased HIV transcription, gene expression, and production through increased CREB phosphorylation and recruitment to the HIV LTR promoter. These findings may help design the clinical management plan and HIV cure strategy of using Metformin to treat type 2 diabetes, a comorbidity with an increasing prevalence, in people living with HIV.
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Affiliation(s)
- Sahar Rezaei
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL 60064, USA.
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL 60064, USA.
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL 60064, USA.
| | - Khalid A Timani
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL 60064, USA.
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL 60064, USA.
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL 60064, USA.
| | - Johnny J He
- Department of Microbiology and Immunology, Rosalind Franklin University, Chicago Medical School, North Chicago, IL 60064, USA.
- Center for Cancer Cell Biology, Immunology and Infection, Rosalind Franklin University, North Chicago, IL 60064, USA.
- School of Graduate and Postdoctoral Studies, Rosalind Franklin University, North Chicago, IL 60064, USA.
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12
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Leem YH, Park JS, Park JE, Kim DY, Kim HS. Creatine supplementation with exercise reduces α-synuclein oligomerization and necroptosis in Parkinson's disease mouse model. J Nutr Biochem 2024; 126:109586. [PMID: 38262563 DOI: 10.1016/j.jnutbio.2024.109586] [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: 09/21/2023] [Revised: 01/04/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Parkinson's disease (PD) is an incurable neurological disorder that causes typical motor deficits. In this study, we investigated the effects of creatine supplementation and exercise in the subacute 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD. We found that 2% creatine supplementation and/or exercise intervention for 4 weeks elicited neurobehavioral recovery and neuroprotective effects regarding dopaminergic cell loss in MPTP-treated mice; this effect implies functional preservation of dopaminergic cells in the substantia nigra, as reflected by tyrosine hydroxylase expression recovery. Creatine and exercise reduced necroptotic activity in dopaminergic cells by lowering mixed lineage kinase domain-like protein (MLKL) modification to active phenotypes (phosphorylation at Ser345 and oligomerization) and phosphorylated receptor-interacting protein kinase 1 (RIPK1) (Ser166-p) and RIPK3 (Ser232-p) levels. In addition, creatine and exercise reduced the MPTP-induced increase in pathogenic α-synuclein forms, such as Ser129 phosphorylation and oligomerization. Furthermore, creatine and exercise had anti-inflammatory and antioxidative effects in MPTP mice, as evidenced by a decrease in microglia activation, NF-κB-dependent pro-inflammatory molecule expression, and increase in antioxidant enzyme expression. These phenotypic changes were associated with the exercise/creatine-induced AMP-activated protein kinase (AMPK)/nuclear factor erythroid 2-related factor 2 (Nrf2) and sirtuin 3 (SIRT3)/forkhead box O3 (FoxO3a) signaling pathways. In all experiments, combining creatine with exercise resulted in considerable improvement over either treatment alone. Consequently, these findings suggest that creatine supplementation with exercise has anti-inflammatory, antioxidative, and anti-α-synucleinopathy effects, thereby reducing necroptotic cell death in a PD mouse model.
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Affiliation(s)
- Yea-Hyun Leem
- Department of Molecular Medicine, Inflammation-Cancer Microenvironment Research Center, School of Medicine, Ewha Womans University, Seoul, South Korea
| | - Jin-Sun Park
- Department of Molecular Medicine, Inflammation-Cancer Microenvironment Research Center, School of Medicine, Ewha Womans University, Seoul, South Korea
| | - Jung-Eun Park
- Department of Molecular Medicine, Inflammation-Cancer Microenvironment Research Center, School of Medicine, Ewha Womans University, Seoul, South Korea
| | - Do-Yeon Kim
- Department of Molecular Medicine, Inflammation-Cancer Microenvironment Research Center, School of Medicine, Ewha Womans University, Seoul, South Korea
| | - Hee-Sun Kim
- Department of Molecular Medicine, Inflammation-Cancer Microenvironment Research Center, School of Medicine, Ewha Womans University, Seoul, South Korea; Department of Brain & Cognitive Sciences, Ewha Womans University, Seoul, South Korea.
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13
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Apalowo OE, Adegoye GA, Mbogori T, Kandiah J, Obuotor TM. Nutritional Characteristics, Health Impact, and Applications of Kefir. Foods 2024; 13:1026. [PMID: 38611332 PMCID: PMC11011999 DOI: 10.3390/foods13071026] [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: 03/12/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
A global epidemiological shift has been observed in recent decades, characterized by an increase in age-related disorders, notably non-communicable chronic diseases, such as type 2 diabetes mellitus, cardiovascular and neurodegenerative diseases, and cancer. An appreciable causal link between changes in the gut microbiota and the onset of these maladies has been recognized, offering an avenue for effective management. Kefir, a probiotic-enriched fermented food, has gained significance in this setting due to its promising resource for the development of functional or value-added food formulations and its ability to reshape gut microbial composition. This has led to increasing commercial interest worldwide as it presents a natural beverage replete with health-promoting microbes and several bioactive compounds. Given the substantial role of the gut microbiota in human health and the etiology of several diseases, we conducted a comprehensive synthesis covering a total of 33 investigations involving experimental animal models, aimed to elucidate the regulatory influence of bioactive compounds present in kefir on gut microbiota and their potential in promoting optimal health. This review underscores the outstanding nutritional properties of kefir as a central repository of bioactive compounds encompassing micronutrients and amino acids and delineates their regulatory effects at deficient, adequate, and supra-nutritional intakes on the gut microbiota and their broader physiological consequences. Furthermore, an investigation of putative mechanisms that govern the regulatory effects of kefir on the gut microbiota and its connections with various human diseases was discussed, along with potential applications in the food industry.
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Affiliation(s)
- Oladayo Emmanuel Apalowo
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Starkville, MS 39762, USA; (O.E.A.); (G.A.A.)
| | - Grace Adeola Adegoye
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Starkville, MS 39762, USA; (O.E.A.); (G.A.A.)
- Department of Nutrition and Health Science, Ball State University, Muncie, IN 47306, USA;
| | - Teresia Mbogori
- Department of Nutrition and Health Science, Ball State University, Muncie, IN 47306, USA;
| | - Jayanthi Kandiah
- Department of Nutrition and Health Science, Ball State University, Muncie, IN 47306, USA;
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14
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Liu N, Dong J, Li L, Zhou D, Liu F. The Function and Mechanism of Anti-Inflammatory Factor Metrnl Prevents the Progression of Inflammatory-Mediated Pathological Bone Osteolytic Diseases. J Inflamm Res 2024; 17:1607-1619. [PMID: 38495340 PMCID: PMC10942011 DOI: 10.2147/jir.s455790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/07/2024] [Indexed: 03/19/2024] Open
Abstract
Metrnl, recently identified as an adipokine, is a secreted protein notably expressed in white adipose tissue, barrier tissues, and activated macrophages. This adipokine plays a pivotal role in counteracting obesity-induced insulin resistance. It enhances adipose tissue functionality by promoting adipocyte differentiation, activating metabolic pathways, and exerting anti-inflammatory effects. Extensive research has identified Metrnl as a key player in modulating inflammatory responses and as an integral regulator of muscle regeneration. These findings position Metrnl as a promising biomarker and potential therapeutic target in treating inflammation-associated pathologies. Despite this, the specific anti-inflammatory mechanisms of Metrnl in immune-mediated osteolysis and arthritis remain elusive, warranting further investigation. In this review, we will briefly elaborate on the role of Metrnl in anti-inflammation function in inflammation-related osteolysis, arthritis, and pathological bone resorption, which could facilitate Metrnl's clinical application as a novel therapeutic strategy to prevent bone loss. While the pathogenesis of elbow stiffness remains elusive, current literature suggests that Metrnl likely exerts a pivotal role in its development.
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Affiliation(s)
- Nan Liu
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Jinlei Dong
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Lianxin Li
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Dongsheng Zhou
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
| | - Fanxiao Liu
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China
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15
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Choi S, Sarker MK, Yu MR, Lee H, Kwon SH, Jeon JS, Noh H, Kim H. MicroRNA-5010-5p ameliorates high-glucose induced inflammation in renal tubular epithelial cells by modulating the expression of PPP2R2D. BMJ Open Diabetes Res Care 2024; 12:e003784. [PMID: 38442987 PMCID: PMC11146382 DOI: 10.1136/bmjdrc-2023-003784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/08/2024] [Indexed: 03/07/2024] Open
Abstract
INTRODUCTION We previously reported the significant upregulation of eight circulating exosomal microRNAs (miRNAs) in patients with diabetic kidney disease (DKD). However, their specific roles and molecular mechanisms in the kidney remain unknown. Among the eight miRNAs, we evaluated the effects of miR-5010-5p on renal tubular epithelial cells under diabetic conditions in this study. RESEARCH DESIGN AND METHODS We transfected the renal tubular epithelial cell line, HK-2, with an miR-5010-5p mimic using recombinant plasmids. The target gene of hsa-miR-5010-5p was identified using a dual-luciferase assay. Cell viability was assessed via the 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay. Moreover, mRNA and protein expression levels were determined via real-time PCR and western blotting, respectively. RESULTS High glucose levels did not significantly affect the intracellular expression of miR-5010-5p in HK-2 cells. Transfection of the miR-5010-5p mimic caused no change in cell viability. However, miR-5010-5p-transfected HK-2 cells exhibited significantly decreased expression levels of inflammatory cytokines, such as the monocyte chemoattractant protein-1, interleukin-1β, and tumor necrosis factor-ɑ, under high-glucose conditions. These changes were accompanied by the restored expression of phosphorylated AMP-activated protein kinase (AMPK) and decreased phosphorylation of nuclear factor-kappa B. Dual-luciferase assay revealed that miR-5010-5p targeted the gene, protein phosphatase 2 regulatory subunit B delta (PPP2R2D), a subunit of protein phosphatase 2A, which modulates AMPK phosphorylation. CONCLUSIONS Our findings suggest that increased miR-5010-5p expression reduces high glucose-induced inflammatory responses in renal tubular epithelial cells via the regulation of the target gene, PPP2R2D, which modulates AMPK phosphorylation. Therefore, miR-5010-5p may be a promising therapeutic target for DKD.
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Affiliation(s)
- Sunghee Choi
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
| | | | - Mi Ra Yu
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
| | - Haekyung Lee
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea (the Republic of)
| | - Soon Hyo Kwon
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea (the Republic of)
| | - Jin Seok Jeon
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea (the Republic of)
| | - Hyunjin Noh
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea (the Republic of)
| | - Hyoungnae Kim
- Hyonam Kidney Laboratory, Seoul, Korea (the Republic of)
- Division of Nephrology, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea (the Republic of)
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16
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Athari SZ, Farajdokht F, Keyhanmanesh R, Mohaddes G. AMPK Signaling Pathway as a Potential Therapeutic Target for Parkinson's Disease. Adv Pharm Bull 2024; 14:120-131. [PMID: 38585465 PMCID: PMC10997932 DOI: 10.34172/apb.2024.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 09/30/2023] [Accepted: 10/08/2023] [Indexed: 04/09/2024] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease caused by the loss of dopaminergic neurons. Genetic factors, inflammatory responses, oxidative stress, metabolic disorders, cytotoxic factors, and mitochondrial dysfunction are all involved in neuronal death in neurodegenerative diseases. The risk of PD can be higher in aging individuals due to decreased mitochondrial function, energy metabolism, and AMP-activated protein kinase (AMPK) function. The potential of AMPK to regulate neurodegenerative disorders lies in its ability to enhance antioxidant capacity, reduce oxidative stress, improve mitochondrial function, decrease mitophagy and macroautophagy, and inhibit inflammation. In addition, it has been shown that modulating the catalytic activity of AMPK can protect the nervous system. This article reviews the mechanisms by which AMPK activation can modulate PD.
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Affiliation(s)
- Seyed Zanyar Athari
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fereshteh Farajdokht
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rana Keyhanmanesh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Gisou Mohaddes
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Biomedical Education, California Health Sciences University, College of Osteopathic Medicine, Clovis, CA, USA
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17
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Pokhrel RH, Acharya S, Mishra S, Gu Y, Manzoor U, Kim JK, Park Y, Chang JH. AMPK Alchemy: Therapeutic Potentials in Allergy, Aging, and Cancer. Biomol Ther (Seoul) 2024; 32:171-182. [PMID: 38346909 PMCID: PMC10902700 DOI: 10.4062/biomolther.2023.222] [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: 12/18/2023] [Revised: 01/29/2024] [Accepted: 01/18/2024] [Indexed: 02/28/2024] Open
Abstract
All cells are equipped with intricate signaling networks to meet the energy demands and respond to the nutrient availability in the body. AMP-activated protein kinase (AMPK) is among the most potent regulators of cellular energy balance. Under ATP -deprived conditions, AMPK phosphorylates substrates and affects various biological processes, such as lipid/glucose metabolism and protein synthesis. These actions further affect the cell growth, death, and functions, altering the cellular outcomes in energy-restricted environments. AMPK plays vital roles in maintaining good health. AMPK dysfunction is observed in various chronic diseases, making it a promising target for preventing and alleviating such diseases. Herein, we highlight the different AMPK functions, especially in allergy, aging, and cancer, to facilitate the development of new therapeutic approaches in the future.
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Affiliation(s)
- Ram Hari Pokhrel
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Suman Acharya
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sunil Mishra
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Ye Gu
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Umar Manzoor
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Jeon-Kyung Kim
- School of Pharmacy and Institute of New Drug Development, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Youngjun Park
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea
- Jeju Research Institute of Pharmaceutical Sciences, College of Pharmacy, Jeju National University, Jeju 63243, Republic of Korea
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Republic of Korea
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18
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Bubak MP, Mann SN, Borowik AK, Pranay A, Batushansky A, Vieira de Sousa Neto I, Mondal SA, Doidge SM, Davidyan A, Szczygiel MM, Peelor FF, Rigsby S, Broomfield ME, Lacy CI, Rice HC, Stout MB, Miller BF. 17α-Estradiol alleviates high-fat diet-induced inflammatory and metabolic dysfunction in skeletal muscle of male and female mice. Am J Physiol Endocrinol Metab 2024; 326:E226-E244. [PMID: 38197793 PMCID: PMC11193529 DOI: 10.1152/ajpendo.00215.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/14/2023] [Accepted: 12/22/2023] [Indexed: 01/11/2024]
Abstract
17α-estradiol (17α-E2) is a naturally occurring nonfeminizing diastereomer of 17β-estradiol that has life span-extending effects in rodent models. To date, studies of the systemic and tissue-specific benefits of 17α-E2 have largely focused on the liver, brain, and white adipose tissue with far less focus on skeletal muscle. Skeletal muscle has an important role in metabolic and age-related disease. Therefore, this study aimed to determine whether 17α-E2 treatment has positive, tissue-specific effects on skeletal muscle during a high-fat feeding. We hypothesized that male, but not female, mice, would benefit from 17α-E2 treatment during a high-fat diet (HFD) with changes in the mitochondrial proteome to support lipid oxidation and subsequent reductions in diacylglycerol (DAG) and ceramide content. To test this hypothesis, we used a multiomics approach to determine changes in lipotoxic lipid intermediates, metabolites, and proteins related to metabolic homeostasis. Unexpectedly, we found that 17α-E2 had marked, but different, beneficial effects within each sex. In male mice, we show that 17α-E2 alleviates HFD-induced metabolic detriments of skeletal muscle by reducing the accumulation of diacylglycerol (DAG), and inflammatory cytokine levels, and altered the abundance of most of the proteins related to lipolysis and β-oxidation. Similar to male mice, 17α-E2 treatment reduced fat mass while protecting muscle mass in female mice but had little muscle inflammatory cytokine levels. Although female mice were resistant to HFD-induced changes in DAGs, 17α-E2 treatment induced the upregulation of six DAG species. In female mice, 17α-E2 treatment changed the relative abundance of proteins involved in lipolysis, β-oxidation, as well as structural and contractile proteins but to a smaller extent than male mice. These data demonstrate the metabolic benefits of 17α-E2 in skeletal muscle of male and female mice and contribute to the growing literature of the use of 17α-E2 for multi tissue health span benefits.NEW & NOTEWORTHY Using a multiomics approach, we show that 17α-E2 alleviates HFD-induced metabolic detriments in skeletal muscle by altering bioactive lipid intermediates, inflammatory cytokines, and the abundance of proteins related to lipolysis and muscle contraction. The positive effects of 17α-E2 in skeletal muscle occur in both sexes but differ in their outcome.
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Affiliation(s)
- Matthew P Bubak
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Shivani N Mann
- Department of Neuroscience, University of Arizona, Tucson, Arizona, United States
| | - Agnieszka K Borowik
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Atul Pranay
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Albert Batushansky
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
- Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheba, Israel
| | - Ivo Vieira de Sousa Neto
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Samim A Mondal
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Stephen M Doidge
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Arik Davidyan
- Department of Biological Sciences, California State University, Sacramento, California, United States
| | - Marcelina M Szczygiel
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Frederick F Peelor
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Sandra Rigsby
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Matle E Broomfield
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
| | - Charles I Lacy
- Department of Biochemistry and Molecular Biology, Oklahoma Center for Geroscience and Healthy Brain Aging, Oklahoma City, Oklahoma, United States
| | - Heather C Rice
- Department of Biochemistry and Molecular Biology, Oklahoma Center for Geroscience and Healthy Brain Aging, Oklahoma City, Oklahoma, United States
| | - Michael B Stout
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, Oklahoma, United States
| | - Benjamin F Miller
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, United States
- Oklahoma City Veterans Affairs Medical Center, Oklahoma City, Oklahoma, United States
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19
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Silva RCMC. Mitochondria, Autophagy and Inflammation: Interconnected in Aging. Cell Biochem Biophys 2024:10.1007/s12013-024-01231-x. [PMID: 38381268 DOI: 10.1007/s12013-024-01231-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 02/08/2024] [Indexed: 02/22/2024]
Abstract
In this manuscript, I discuss the direct link between abnormalities in inflammatory responses, mitochondrial metabolism and autophagy during the process of aging. It is focused on the cytosolic receptors nucleotide-binding domain, leucine-rich-containing family, pyrin domain-containing-3 (NLRP3) and cyclic GMP-AMP synthase (cGAS); myeloid-derived suppressor cells (MDSCs) expansion and their associated immunosuppressive metabolite, methyl-glyoxal, all of them negatively regulated by mitochondrial autophagy, biogenesis, metabolic pathways and its distinct metabolites.
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Affiliation(s)
- Rafael Cardoso Maciel Costa Silva
- Laboratory of Immunoreceptors and signaling, Instituto de Biofísica Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.
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20
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Lee IT, Yang CC, Yang CM. Harnessing peroxisome proliferator-activated receptor γ agonists to induce Heme Oxygenase-1: a promising approach for pulmonary inflammatory disorders. Cell Commun Signal 2024; 22:125. [PMID: 38360670 PMCID: PMC10868008 DOI: 10.1186/s12964-024-01501-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 01/27/2024] [Indexed: 02/17/2024] Open
Abstract
The activation of peroxisome proliferator-activated receptor (PPAR)-γ has been extensively shown to attenuate inflammatory responses in conditions such as asthma, acute lung injury, and acute respiratory distress syndrome, as demonstrated in animal studies. However, the precise molecular mechanisms underlying these inhibitory effects remain largely unknown. The upregulation of heme oxygenase-1 (HO-1) has been shown to confer protective effects, including antioxidant, antiapoptotic, and immunomodulatory effects in vitro and in vivo. PPARγ is highly expressed not only in adipose tissues but also in various other tissues, including the pulmonary system. Thiazolidinediones (TZDs) are highly selective agonists for PPARγ and are used as antihyperglycemic medications. These observations suggest that PPARγ agonists could modulate metabolism and inflammation. Several studies have indicated that PPARγ agonists may serve as potential therapeutic candidates in inflammation-related diseases by upregulating HO-1, which in turn modulates inflammatory responses. In the respiratory system, exposure to external insults triggers the expression of inflammatory molecules, such as cytokines, chemokines, adhesion molecules, matrix metalloproteinases, and reactive oxygen species, leading to the development of pulmonary inflammatory diseases. Previous studies have demonstrated that the upregulation of HO-1 protects tissues and cells from external insults, indicating that the induction of HO-1 by PPARγ agonists could exert protective effects by inhibiting inflammatory signaling pathways and attenuating the development of pulmonary inflammatory diseases. However, the mechanisms underlying TZD-induced HO-1 expression are not well understood. This review aimed to elucidate the molecular mechanisms through which PPARγ agonists induce the expression of HO-1 and explore how they protect against inflammatory and oxidative responses.
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Affiliation(s)
- I-Ta Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, 110301, Taiwan
| | - Chien-Chung Yang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital at Taoyuan, Taoyuan, 333008, Taiwan
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan, 333323, Taiwan
| | - Chuen-Mao Yang
- Graduate Institute of Biomedical and Pharmaceutical Science, Fu Jen Catholic University, New Taipei City, 242062, Taiwan.
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21
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Petakh P, Kamyshna I, Oksenych V, Kamyshnyi O. Metformin Alters mRNA Expression of FOXP3, RORC, and TBX21 and Modulates Gut Microbiota in COVID-19 Patients with Type 2 Diabetes. Viruses 2024; 16:281. [PMID: 38400056 PMCID: PMC10893440 DOI: 10.3390/v16020281] [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: 12/12/2023] [Revised: 01/24/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
COVID-19 remains a significant global concern, particularly for individuals with type 2 diabetes who face an elevated risk of hospitalization and mortality. Metformin, a primary treatment for type 2 diabetes, demonstrates promising pleiotropic properties that may substantially mitigate disease severity and expedite recovery. Our study of the gut microbiota and the mRNA expression of pro-inflammatory and anti-inflammatory T-lymphocyte subpopulations showed that metformin increases bacterial diversity while modulating gene expression related to T-lymphocytes. This study found that people who did not take metformin had a downregulated expression of FOXP3 by 6.62-fold, upregulated expression of RORC by 29.0-fold, and upregulated TBX21 by 1.78-fold, compared to the control group. On the other hand, metformin patients showed a 1.96-fold upregulation in FOXP3 expression compared to the control group, along with a 1.84-fold downregulation in RORC expression and an 11.4-fold downregulation in TBX21 expression. Additionally, we found a correlation with gut microbiota (F/B ratio and alpha-diversity index) and pro-inflammatory biomarkers. This novel observation of metformin's impact on T-cells and gut microbiota opens new horizons for further exploration through clinical trials to validate and confirm our data. The potential of metformin to modulate immune responses and enhance gut microbiota diversity suggests a promising avenue for therapeutic interventions in individuals with type 2 diabetes facing an increased risk of severe outcomes from COVID-19.
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Affiliation(s)
- Pavlo Petakh
- Department of Biochemistry and Pharmacology, Uzhhorod National University, 88000 Uzhhorod, Ukraine
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Iryna Kamyshna
- Department of Medical Rehabilitation, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine;
| | - Valentyn Oksenych
- Broegelmann Research Laboratory, Department of Clinical Science, University of Bergen, 5020 Bergen, Norway
| | - Oleksandr Kamyshnyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
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22
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Zhao R. Exercise mimetics: a novel strategy to combat neuroinflammation and Alzheimer's disease. J Neuroinflammation 2024; 21:40. [PMID: 38308368 PMCID: PMC10837901 DOI: 10.1186/s12974-024-03031-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/25/2024] [Indexed: 02/04/2024] Open
Abstract
Neuroinflammation is a pathological hallmark of Alzheimer's disease (AD), characterized by the stimulation of resident immune cells of the brain and the penetration of peripheral immune cells. These inflammatory processes facilitate the deposition of amyloid-beta (Aβ) plaques and the abnormal hyperphosphorylation of tau protein. Managing neuroinflammation to restore immune homeostasis and decrease neuronal damage is a therapeutic approach for AD. One way to achieve this is through exercise, which can improve brain function and protect against neuroinflammation, oxidative stress, and synaptic dysfunction in AD models. The neuroprotective impact of exercise is regulated by various molecular factors that can be activated in the same way as exercise by the administration of their mimetics. Recent evidence has proven some exercise mimetics effective in alleviating neuroinflammation and AD, and, additionally, they are a helpful alternative option for patients who are unable to perform regular physical exercise to manage neurodegenerative disorders. This review focuses on the current state of knowledge on exercise mimetics, including their efficacy, regulatory mechanisms, progress, challenges, limitations, and future guidance for their application in AD therapy.
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Affiliation(s)
- Renqing Zhao
- College of Physical Education, Yangzhou University, Yangzhou, China.
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23
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Zhang T, Xu L, Guo X, Tao H, Liu Y, Liu X, Zhang Y, Meng X. The potential of herbal drugs to treat heart failure: The roles of Sirt1/AMPK. J Pharm Anal 2024; 14:157-176. [PMID: 38464786 PMCID: PMC10921247 DOI: 10.1016/j.jpha.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/09/2023] [Accepted: 09/05/2023] [Indexed: 03/12/2024] Open
Abstract
Heart failure (HF) is a highly morbid syndrome that seriously affects the physical and mental health of patients and generates an enormous socio-economic burden. In addition to cardiac myocyte oxidative stress and apoptosis, which are considered mechanisms for the development of HF, alterations in cardiac energy metabolism and pathological autophagy also contribute to cardiac abnormalities and ultimately HF. Silent information regulator 1 (Sirt1) and adenosine monophosphate-activated protein kinase (AMPK) are nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases and phosphorylated kinases, respectively. They play similar roles in regulating some pathological processes of the heart through regulating targets such as peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), protein 38 mitogen-activated protein kinase (p38 MAPK), peroxisome proliferator-activated receptors (PPARs), and mammalian target of rapamycin (mTOR). We summarized the synergistic effects of Sirt1 and AMPK in the heart, and listed the traditional Chinese medicine (TCM) that exhibit cardioprotective properties by modulating the Sirt1/AMPK pathway, to provide a basis for the development of Sirt1/AMPK activators or inhibitors for the treatment of HF and other cardiovascular diseases (CVDs).
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Affiliation(s)
- Tao Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Lei Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaowei Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Honglin Tao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yue Liu
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianfeng Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yi Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- Meishan Hospital of Chengdu University of Traditional Chinese Medicine, Meishan, Sichuan, 620032, China
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24
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Henin G, Loumaye A, Leclercq IA, Lanthier N. Myosteatosis: Diagnosis, pathophysiology and consequences in metabolic dysfunction-associated steatotic liver disease. JHEP Rep 2024; 6:100963. [PMID: 38322420 PMCID: PMC10844870 DOI: 10.1016/j.jhepr.2023.100963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 02/08/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is associated with an increased risk of multisystemic complications, including muscle changes such as sarcopenia and myosteatosis that can reciprocally affect liver function. We conducted a systematic review to highlight innovative assessment tools, pathophysiological mechanisms and metabolic consequences related to myosteatosis in MASLD, based on original articles screened from PUBMED, EMBASE and COCHRANE databases. Forty-six original manuscripts (14 pre-clinical and 32 clinical studies) were included. Microscopy (8/14) and tissue lipid extraction (8/14) are the two main assessment techniques used to measure muscle lipid content in pre-clinical studies. In clinical studies, imaging is the most used assessment tool and included CT (14/32), MRI (12/32) and ultrasound (4/32). Assessed muscles varied across studies but mainly included paravertebral (4/14 in pre-clinical; 13/32 in clinical studies) and lower limb muscles (10/14 in preclinical; 13/32 in clinical studies). Myosteatosis is already highly prevalent in non-cirrhotic stages of MASLD and correlates with disease activity when using muscle density assessed by CT. Numerous pathophysiological mechanisms were found and included: high-fat and high-fructose diet, dysregulation in fatty acid transport and ketogenesis, endocrine disorders and impaired microRNA122 pathway signalling. In this review we also uncover several potential consequences of myosteatosis in MASLD, such as insulin resistance, MASLD progression from steatosis to metabolic steatohepatitis and loss of muscle strength. In conclusion, data on myosteatosis in MASLD are already available. Screening for myosteatosis could be highly relevant in the context of MASLD, considering its correlation with MASLD activity as well as its related consequences.
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Affiliation(s)
- Guillaume Henin
- Service d’Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Audrey Loumaye
- Service d’Endocrinologie, Diabétologie et Nutrition, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
| | - Isabelle A. Leclercq
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
| | - Nicolas Lanthier
- Service d’Hépato-Gastroentérologie, Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium
- Laboratory of Hepatogastroenterology, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain (UCLouvain), Brussels, Belgium
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25
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Salminen A. AMPK signaling inhibits the differentiation of myofibroblasts: impact on age-related tissue fibrosis and degeneration. Biogerontology 2024; 25:83-106. [PMID: 37917219 PMCID: PMC10794430 DOI: 10.1007/s10522-023-10072-9] [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: 09/08/2023] [Accepted: 09/26/2023] [Indexed: 11/04/2023]
Abstract
Disruption of the extracellular matrix (ECM) and an accumulation of fibrotic lesions within tissues are two of the distinctive hallmarks of the aging process. Tissue fibroblasts are mesenchymal cells which display an impressive plasticity in the regulation of ECM integrity and thus on tissue homeostasis. Single-cell transcriptome studies have revealed that tissue fibroblasts exhibit a remarkable heterogeneity with aging and in age-related diseases. Excessive stress and inflammatory insults induce the differentiation of fibroblasts into myofibroblasts which are fusiform contractile cells and abundantly secrete the components of the ECM and proteolytic enzymes as well as many inflammatory mediators. Detrimental stresses can also induce the transdifferentiation of certain mesenchymal and myeloid cells into myofibroblasts. Interestingly, many age-related stresses, such as oxidative and endoplasmic reticulum stresses, ECM stiffness, inflammatory mediators, telomere shortening, and several alarmins from damaged cells are potent inducers of myofibroblast differentiation. Intriguingly, there is convincing evidence that the signaling pathways stimulated by the AMP-activated protein kinase (AMPK) are potent inhibitors of myofibroblast differentiation and accordingly AMPK signaling reduces fibrotic lesions within tissues, e.g., in age-related cardiac and pulmonary fibrosis. AMPK signaling is not only an important regulator of energy metabolism but it is also able to control cell fate determination and many functions of the immune system. It is known that AMPK signaling can delay the aging process via an integrated signaling network. AMPK signaling inhibits myofibroblast differentiation, e.g., by suppressing signaling through the TGF-β, NF-κB, STAT3, and YAP/TAZ pathways. It seems that AMPK signaling can alleviate age-related tissue fibrosis and degeneration by inhibiting the differentiation of myofibroblasts.
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Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
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26
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Petakh P, Kamyshna I, Kamyshnyi A. Gene expression of protein kinase AMP-activated catalytic subunit alpha 1 (PRKAA1), solute carrier family 2 member 1 (SLC2A1) and mechanistic target of rapamycin (MTOR) in metformin-treated type 2 diabetes patients with COVID-19: impact on inflammation markers. Inflammopharmacology 2024; 32:885-891. [PMID: 37773574 DOI: 10.1007/s10787-023-01341-7] [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: 06/15/2023] [Accepted: 09/11/2023] [Indexed: 10/01/2023]
Abstract
The COVID-19 pandemic has resulted in a global health crisis that has severely impacted patients with type 2 diabetes (T2D). T2D patients have a higher risk of experiencing severe COVID-19 symptoms, hospitalization, and mortality compared to patients without diabetes. The dysregulated immune response in T2D patients can exacerbate the severity of COVID-19 symptoms. Insulin therapy, a common treatment for T2D patients, has been linked to increased mortality in COVID-19 patients with T2D. However, metformin, an anti-diabetic medication, has been shown to have anti-inflammatory properties that may mitigate the cytokine storm observed in severe COVID-19 cases. In this study, we investigated how the PRKAA1, SLC2A1, and MTOR genes contribute to inflammation markers in COVID-19 patients with T2D, who were receiving either insulin or metformin therapy. Our findings revealed that metformin treatment was associated with reduced expression of genes involved in Th1/Th17 cell differentiation. These results suggest that metformin could be a potential treatment option for T2D patients with COVID-19 due to its anti-inflammatory properties, which may improve patient outcomes.
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Affiliation(s)
- Pavlo Petakh
- Department of Biochemistry and Pharmacology, Uzhhorod National University, Uzhhorod, Ukraine.
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, 46001, Ukraine.
| | - Iryna Kamyshna
- Department of Medical Rehabilitation, I. Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Aleksandr Kamyshnyi
- Department of Microbiology, Virology, and Immunology, I. Horbachevsky Ternopil National Medical University, Ternopil, 46001, Ukraine.
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27
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Zhao J, Han Z, Ding L, Wang P, He X, Lin L. The molecular mechanism of aging and the role in neurodegenerative diseases. Heliyon 2024; 10:e24751. [PMID: 38312598 PMCID: PMC10835255 DOI: 10.1016/j.heliyon.2024.e24751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 12/09/2023] [Accepted: 01/12/2024] [Indexed: 02/06/2024] Open
Abstract
Aging is a complex and inevitable biological process affected by a combination of external environmental and genetic factors. Humans are currently living longer than ever before, accompanied with aging-related alterations such as diminished autophagy, decreased immunological function, mitochondrial malfunction, stem cell failure, accumulation of somatic and mitochondrial DNA mutations, loss of telomere, and altered nutrient metabolism. Aging leads to a decline in body functions and age-related diseases, for example, Alzheimer's disease, which adversely affects human health and longevity. The quality of life of the elderly is greatly diminished by the increase in their life expectancy rather than healthy life expectancy. With the rise in the age of the global population, aging and related diseases have become the focus of attention worldwide. In this review, we discuss several major mechanisms of aging, including DNA damage and repair, free radical oxidation, telomeres and telomerase, mitochondrial damage, inflammation, and their role in neurodegenerative diseases to provide a reference for the prevention of aging and its related diseases.
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Affiliation(s)
- Juanli Zhao
- Laboratory of Medical Molecular and Cellular Biology, College of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, 430065, China
- Department of Pharmacology, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Zhenjie Han
- Laboratory of Medical Molecular and Cellular Biology, College of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Li Ding
- Department of Pharmacology, College of Pharmacy, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Ping Wang
- Hubei Research Institute of Geriatrics, Collaborative Innovation Center of Hubei Province, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Xiutang He
- Center for Monitoring and Evaluation of Teaching Quality, Jingchu University of Technology, Jingmen, 448000, China
| | - Li Lin
- Laboratory of Medical Molecular and Cellular Biology, College of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, 430065, China
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28
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Lee DK, Jo SH, Lee ES, Ha KB, Park NW, Kong DH, Park SI, Park JS, Chung CH. DWN12088, A Prolyl-tRNA Synthetase Inhibitor, Alleviates Hepatic Injury in Nonalcoholic Steatohepatitis. Diabetes Metab J 2024; 48:97-111. [PMID: 38173372 PMCID: PMC10850270 DOI: 10.4093/dmj.2022.0367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 03/22/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGRUOUND Nonalcoholic steatohepatitis (NASH) is a liver disease caused by obesity that leads to hepatic lipoapoptosis, resulting in fibrosis and cirrhosis. However, the mechanism underlying NASH is largely unknown, and there is currently no effective therapeutic agent against it. DWN12088, an agent used for treating idiopathic pulmonary fibrosis, is a selective prolyl-tRNA synthetase (PRS) inhibitor that suppresses the synthesis of collagen. However, the mechanism underlying the hepatoprotective effect of DWN12088 is not clear. Therefore, we investigated the role of DWN12088 in NASH progression. METHODS Mice were fed a chow diet or methionine-choline deficient (MCD)-diet, which was administered with DWN12088 or saline by oral gavage for 6 weeks. The effects of DWN12088 on NASH were evaluated by pathophysiological examinations, such as real-time quantitative reverse transcription polymerase chain reaction, immunoblotting, biochemical analysis, and immunohistochemistry. Molecular and cellular mechanisms of hepatic injury were assessed by in vitro cell culture. RESULTS DWN12088 attenuated palmitic acid (PA)-induced lipid accumulation and lipoapoptosis by downregulating the Rho-kinase (ROCK)/AMP-activated protein kinase (AMPK)/sterol regulatory element-binding protein-1c (SREBP-1c) and protein kinase R-like endoplasmic reticulum kinase (PERK)/α subunit of eukaryotic initiation factor 2 (eIF2α)/activating transcription factor 4 (ATF4)/C/EBP-homologous protein (CHOP) signaling cascades. PA increased but DWN12088 inhibited the phosphorylation of nuclear factor-κB (NF-κB) p65 (Ser536, Ser276) and the expression of proinflammatory genes. Moreover, the DWN12088 inhibited transforming growth factor β (TGFβ)-induced pro-fibrotic gene expression by suppressing TGFβ receptor 1 (TGFβR1)/Smad2/3 and TGFβR1/glutamyl-prolyl-tRNA synthetase (EPRS)/signal transducer and activator of transcription 6 (STAT6) axis signaling. In the case of MCD-diet-induced NASH, DWN12088 reduced hepatic steatosis, inflammation, and lipoapoptosis and prevented the progression of fibrosis. CONCLUSION Our findings provide new insights about DWN12088, namely that it plays an important role in the overall improvement of NASH. Hence, DWN12088 shows great potential to be developed as a new integrated therapeutic agent for NASH.
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Affiliation(s)
- Dong-Keon Lee
- Department of Internal Medicine and Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
- Division of Research Program, Scripps Korea Antibody Institute, Chuncheon, Korea
| | - Su Ho Jo
- Department of Internal Medicine and Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Eun Soo Lee
- Department of Internal Medicine and Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kyung Bong Ha
- Department of Internal Medicine and Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Na Won Park
- Department of Internal Medicine and Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Deok-Hoon Kong
- Division of Research Program, Scripps Korea Antibody Institute, Chuncheon, Korea
| | - Sang-In Park
- Division of Research Program, Scripps Korea Antibody Institute, Chuncheon, Korea
| | - Joon Seok Park
- Drug Discovery Center, Daewoong Pharmaceutical Co. Ltd., Seoul, Korea
| | - Choon Hee Chung
- Department of Internal Medicine and Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
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29
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Karacabeyli D, Lacaille D. Glucagon-Like Peptide 1 Receptor Agonists in Patients With Inflammatory Arthritis or Psoriasis: A Scoping Review. J Clin Rheumatol 2024; 30:26-31. [PMID: 36870080 DOI: 10.1097/rhu.0000000000001949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
ABSTRACT Obesity is a proinflammatory state associated with increased disease severity in various types of inflammatory arthritis. Weight loss is associated with improved disease activity in certain forms of inflammatory arthritis such as rheumatoid arthritis (RA) and psoriatic arthritis (PsA). We conducted a scoping review summarizing the literature evaluating the effect of glucagon-like peptide 1 (GLP-1) receptor agonists on weight and disease activity in patients with inflammatory arthritis or psoriasis. MEDLINE, PubMed, Scopus, and Embase were searched for publications evaluating the role of GLP-1 analogs in RA, PsA, psoriasis, axial spondyloarthritis, systemic lupus erythematosus, systemic sclerosis, gout, and calcium pyrophosphate deposition disease. Nineteen studies were included: 1 gout study, 5 RA studies (3 basic science, 1 case report, and 1 longitudinal cohort), and 13 psoriasis studies (2 basic science, 4 case reports, 2 combined basic science/clinical studies, 3 longitudinal cohorts, and 2 randomized controlled trials). No psoriasis study reported on PsA outcomes. Basic science experiments demonstrated weight-independent immunomodulatory effects of GLP-1 analogs through inhibition of the NF-κB pathway (via AMP-activated protein kinase phosphorylation in psoriasis and prevention of IκBα phosphorylation in RA). In RA, improved disease activity was reported. In psoriasis, 4 of 5 clinical studies demonstrated significant improvements in Psoriasis Area Severity Index and weight/body mass index with no major adverse events. Common limitations included small sample sizes, short follow-up periods, and lack of control groups. GLP-1 analogs safely cause weight loss and have potential weight-independent anti-inflammatory effects. Their role as an adjunct in patients with inflammatory arthritis and obesity or diabetes is understudied, warranting future research.
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Affiliation(s)
- Derin Karacabeyli
- From the Division of Rheumatology, Department of Medicine, University of British Columbia
| | - Diane Lacaille
- Arthritis Research Canada, Vancouver, British Columbia, Canada
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30
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El Safadi D, Lebeau G, Turpin J, Lefebvre d’Hellencourt C, Diotel N, Viranaicken W, Krejbich-Trotot P. The Antiviral Potential of AdipoRon, an Adiponectin Receptor Agonist, Reveals the Ability of Zika Virus to Deregulate Adiponectin Receptor Expression. Viruses 2023; 16:24. [PMID: 38257725 PMCID: PMC10820441 DOI: 10.3390/v16010024] [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: 11/08/2023] [Revised: 12/11/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
Zika virus (ZIKV) is a pathogenic member of the flavivirus family, with several unique characteristics. Unlike any other arbovirus, ZIKV can be transmitted sexually and maternally, and thus produce congenital syndromes (CZS) due to its neurotropism. This challenges the search for safe active molecules that can protect pregnant women and their fetuses. In this context, and in the absence of any existing treatment, it seemed worthwhile to test whether the known cytoprotective properties of adiponectin and its pharmacological analog, AdipoRon, could influence the outcome of ZIKV infection. We showed that both AdipoRon and adiponectin could significantly reduce the in vitro infection of A549 epithelial cells, a well-known cell model for flavivirus infection studies. This effect was particularly observed when a pre-treatment was carried out. Conversely, ZIKV revealed an ability to downregulate adiponectin receptor expression and thereby limit adiponectin signaling.
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Affiliation(s)
- Daed El Safadi
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (D.E.S.); (G.L.); (J.T.)
| | - Grégorie Lebeau
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (D.E.S.); (G.L.); (J.T.)
| | - Jonathan Turpin
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (D.E.S.); (G.L.); (J.T.)
- UMR 1188 Diabète Athérothombose Réunion Océan Indien (DéTROI), Campus Santé Université de la Réunion, Université de La Réunion, INSERM, 77 Avenue du Docteur Jean-Marie Dambreville, 97410 Saint-Pierre, La Réunion, France; (C.L.d.); (N.D.)
| | - Christian Lefebvre d’Hellencourt
- UMR 1188 Diabète Athérothombose Réunion Océan Indien (DéTROI), Campus Santé Université de la Réunion, Université de La Réunion, INSERM, 77 Avenue du Docteur Jean-Marie Dambreville, 97410 Saint-Pierre, La Réunion, France; (C.L.d.); (N.D.)
| | - Nicolas Diotel
- UMR 1188 Diabète Athérothombose Réunion Océan Indien (DéTROI), Campus Santé Université de la Réunion, Université de La Réunion, INSERM, 77 Avenue du Docteur Jean-Marie Dambreville, 97410 Saint-Pierre, La Réunion, France; (C.L.d.); (N.D.)
| | - Wildriss Viranaicken
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (D.E.S.); (G.L.); (J.T.)
- UMR 1188 Diabète Athérothombose Réunion Océan Indien (DéTROI), Campus Santé Université de la Réunion, Université de La Réunion, INSERM, 77 Avenue du Docteur Jean-Marie Dambreville, 97410 Saint-Pierre, La Réunion, France; (C.L.d.); (N.D.)
| | - Pascale Krejbich-Trotot
- Unité Mixte Processus Infectieux en Milieu Insulaire Tropical, Plateforme Technologique CYROI, Université de la Réunion, INSERM U1187, CNRS UMR 9192, IRD UMR 249, 94791 Sainte Clotilde, La Réunion, France; (D.E.S.); (G.L.); (J.T.)
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Hamad M, Mehana RA, Abd-Al haseeb MM, Houssen M. Potential antitumour effect of all-trans retinoic acid on regorafenib-treated human colon cancer cell lines. Contemp Oncol (Pozn) 2023; 27:198-210. [PMID: 38239861 PMCID: PMC10793621 DOI: 10.5114/wo.2023.133742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 11/12/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction Colorectal cancer (CRC) is a significant contributor to cancer-related mortality worldwide, ranking as the second leading cause of such deaths. Central to the progression of this malignancy is angiogenesis - a complex process orchestrated by vascular endothelial growth factor (VEGF). Regorafenib, a potent multikinase inhibitor, acts as a critical antagonist of multiple kinases involved in angiogenesis, proliferation, and metastasis. Conversely, all-trans retinoic acid (ATRA) has demonstrated compelling antitumour effects across various cancer types. This study aims to comprehensively evaluate the combined antitumour potential of ATRA and regorafenib in human colon cancer cell lines while elucidating the intricate molecular mechanisms that underlie their action. Material and methods Our investigative approach involved an enzyme-linked immunosorbent assay to meticulously analyse the levels of key players in the VEGF signalling pathway, including VEGF itself, activated protein kinase (AMPK), extracellular signal-regulated protein kinase 1 (ERK1), and nuclear factor kappa B (NF-κB). Additionally, we assessed caspase-3 activity as a fundamental marker of apoptosis. Results The combined use of ATRA and regorafenib exhibited a remarkable augmentation in both AMPK and caspase-3 activities. This was accompanied by a significant reduction in VEGF, ERK1, and NF-κB levels within human colon cancer cell lines subjected to regorafenib treatment. Conclusions Our findings underscore the remarkable antiproliferative, antiangiogenic, and proapoptotic effects resulting from the combined use of ATRA and regorafenib in the context of CRC. This modulation of tumourigenic processes is predominantly mediated through the VEGF signalling axis.
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Affiliation(s)
- Mariam Hamad
- Biochemistry Department Faculty, Pharmacy Damanhour University, Egypt
| | - Radwa Ali Mehana
- Medical Physiology Department, Faculty of Medicine, Alexandria University, Egypt
| | | | - Maha Houssen
- Biochemistry Department Faculty, Pharmacy Damanhour University, Egypt
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Gao F, He Q, Wu S, Zhang K, Xu Z, Kang J, Quan F. Catalpol ameliorates LPS-induced inflammatory response by activating AMPK/mTOR signaling pathway in rat intestinal epithelial cells. Eur J Pharmacol 2023; 960:176125. [PMID: 37890606 DOI: 10.1016/j.ejphar.2023.176125] [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: 02/23/2023] [Revised: 10/01/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023]
Abstract
Intestinal inflammation is a common clinical intestinal disease. Catalpol, a natural iridoid compound, has been shown to have anti-inflammatory, anti-oxidant and anti-apoptotic functions, but the mechanism of its protection against intestinal inflammation is still unclear. This study investigated the protective effect and potential mechanism of catalpol on the lipopolysaccharide (LPS)-induced inflammatory response of intestinal epithelial cell-6 (IEC-6). The results showed that catalpol could inhibit LPS-induced inflammatory response by dose-dependently reducing the release of inflammatory factors, such as tumor necrosis (TNF)-α, interleukin (IL)-1β and IL-6, and inhibiting the nuclear factor kappa-B (NF-κB) signaling pathway. Catalpol ameliorated cellular oxidative stress by reducing reactive oxygen species (ROS) and malondialdehyde (MDA) levels and increasing superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX) expression. Meanwhile, catalpol also inhibited cell apoptosis, decreased the expression of B-cell lymphoma 2 (Bcl-2) - associated X (Bax), caspase 3 and caspase 9, and increased the expression of Bcl-2. This study found that catalpol activates AMP-activated protein kinase (AMPK) signaling pathway and inhibit mammalian target of rapamycin (mTOR) phosphorylationthe. In a further study, after inhibiting AMPK with dorsomorphin, the anti-inflammatory effects of catalpol were significantly reduced. Therefore, catalpol ameliorates LPS-induced inflammatory response by activating AMPK/mTOR signaling pathway in IEC-6 cells.
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Affiliation(s)
- Feng Gao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Qifu He
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Shenghui Wu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Kang Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Zhiming Xu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Jian Kang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Fusheng Quan
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China.
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Assar S, Dastbaz M, Amini K, Roghani SA, Lotfi R, Taghadosi M, Kafi H, Abdan Z, Allahyari H, Rostampour R, Shahrokhvand SZ. Assessing the gene expression of the adenosine 5'-monophosphate-activated protein kinase (AMPK) and its relation with the IL-6 and IL-10 plasma levels in COVID-19 patients. Mol Biol Rep 2023; 50:9925-9933. [PMID: 37874507 DOI: 10.1007/s11033-023-08835-1] [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: 06/14/2023] [Accepted: 09/19/2023] [Indexed: 10/25/2023]
Abstract
BACKGROUND Metabolic dysregulation and excessive inflammation are implicated in the pathogenesis of the highly infectious disease of coronavirus disease 2019 (COVID-19), which is caused by a newly emerging coronavirus (i.e., severe acute respiratory syndrome-coronavirus 2; SARS-CoV-2). The adenosine 5'-monophosphate-activated protein kinase (AMPK), an energy sensor regulating the metabolic pathways in diverse cells, exerts a regulatory role in the immune system. This study aims to examine the mRNA expression level of AMPK and the plasma levels of interleukin-6 (IL-6) and IL-10 cytokines in patients with different grades of COVID-19. METHODS Peripheral blood was collected from 60 patients with COVID-19 (Moderate, severe, and critical). The plasma levels of IL-6 and IL-10 were quantified by enzyme-linked immunosorbent assay (ELISA), and the mRNA expression level of AMPK was determined using real-time PCR. RESULTS The results showed that the plasma levels of IL-6 increased significantly in critical and severe patients compared to moderate cases of COVID-19 (P < 0.001). Moreover, IL-10 plasma concentrations were significantly higher in critical and severe cases than in moderate cases of COVID-19 (P < 0.01 and P < 0.05, respectively). Also, the gene expression of AMPK was meaningfully enhanced in critical patients relative to moderate and severe cases of COVID-19, in order (P < 0.001 and P < 0.01, respectively). There was a positive association between AMPK gene expression and plasma levels of IL-6 and IL-10 (P = 0.006, r = 0.348, P = 0.028, r = 0.283, respectively). CONCLUSION Increasing AMPK gene expression is likely a necessary effort of the immune system to inhibit inflammation in critical COVID-19. However, this effort seems to be inadequate, probably due to factors that induce inflammation, like erythrocyte sedimentation rate (ESR) and IL-6.
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Affiliation(s)
- Shirin Assar
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Dastbaz
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Komail Amini
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyed Askar Roghani
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Ramin Lotfi
- Clinical Research Development Center, Tohid Hospital, Kurdistan University of Medical Sciences, Sanandaj, Iran.
- Lung Diseases and Allergy Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, 6617713446, Iran.
| | - Mahdi Taghadosi
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hamidreza Kafi
- Medical Department, Orchid Pharmed Company, Tehran, Iran
| | - Zahra Abdan
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hosna Allahyari
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Rezvan Rostampour
- Clinical Research Development Center, Imam Reza Hospital, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyedeh Zahra Shahrokhvand
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Kong L, Cai Y, Pan X, Xiao C, Song Z. Glycerol monolaurate improves intestinal morphology and antioxidant status by suppressing inflammatory responses and nuclear factor kappa-B signaling in lipopolysaccharide-exposed chicken embryos. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 15:297-306. [PMID: 38033609 PMCID: PMC10684993 DOI: 10.1016/j.aninu.2023.06.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/15/2023] [Accepted: 06/29/2023] [Indexed: 12/02/2023]
Abstract
Medium-chain fatty acids and their derivatives are natural ingredients that support immunological functions in animals. The effects of glycerol monolaurate (GML) on intestinal innate immunity and associated molecular mechanisms were investigated using a chicken embryo model. Sixty-four Arbor Acres broiler embryos were randomly allocated into four groups. On embryonic day 17.5, the broiler embryos were administered with 9 mg of GML, which was followed by a 12-h incubation period and a 12-h challenge with 32 μg of lipopolysaccharide (LPS). On embryonic day 18.5, the jejunum and ileum were harvested. Results indicated that GML reversed the LPS-induced decline in villus height and upregulated the expression of mucin 2 (P < 0.05). GML decreased LPS-induced malondialdehyde production and boosted antioxidant enzyme activity (P < 0.05). GML alleviated LPS-stimulated intestinal secretion of interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α) (P < 0.05). GML also normalized LPS-induced changes in the gene expression of Toll-like receptor 4, nuclear factor kappa-B p65 (NF-κB p65), cyclooxygenase-2, NOD-like receptor protein 3, IL-18, zonula occludens 1, and occludin (P < 0.05). GML enhanced as well the expression of AMP-activated protein kinase α1 and claudin 1 (P < 0.05). In conclusion, GML improved intestinal morphology and antioxidant status by alleviating inflammatory responses and modulating NF-κB signaling in LPS-challenged broiler embryos.
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Affiliation(s)
- Linglian Kong
- Key Laboratory of Efficient Utilization of Nongrain Feed Resources, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Yuanli Cai
- College of Life Science, Qilu Normal University, Jinan, Shandong 250200, China
| | - Xue Pan
- Key Laboratory of Efficient Utilization of Nongrain Feed Resources, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Chuanpi Xiao
- Precision Livestock and Nutrition Unit, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Zhigang Song
- Key Laboratory of Efficient Utilization of Nongrain Feed Resources, College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong 271018, China
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Hasan I, Rainsford KD, Ross JS. Salsalate: a pleotropic anti-inflammatory drug in the treatment of diabetes, obesity, and metabolic diseases. Inflammopharmacology 2023; 31:2781-2797. [PMID: 37758933 DOI: 10.1007/s10787-023-01242-9] [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: 03/17/2023] [Accepted: 04/12/2023] [Indexed: 09/29/2023]
Abstract
Type two Diabetes Mellitus (T2DM) is a rising epidemic. Available therapeutic strategies have provided glycaemic control via HbA1c reduction but fail to provide clinically meaningful reduction in microvascular and macrovascular (cardiac, renal, ophthalmological, and neurological) complications. Inflammation is strongly linked to the pathogenesis of T2DM. Underlying inflammatory mechanisms include oxidative stress, endoplasmic reticulum stress amyloid deposition in the pancreas, lipotoxicity, and glucotoxicity. Molecular signalling mechanisms in chronic inflammation linked to obesity and diabetes include JANK, NF-kB, and AMPK pathways. These activated pathways lead to a production of various inflammatory cytokines, such as Interleukin (IL-6), tumor necrosis factor (TNF)-alpha, and C-reactive protein (CRP), which create a chronic low-grade inflammation and ultimately dysregulation of glucose homeostasis in the liver, skeletal muscle, and smooth muscle. Anti-inflammatory agents are being tested as anti-diabetic agents such as the IL-1b antagonist, Anakinra, the IL-1b inhibitor, Canakinuma, the IL-6 antagonists such as Tocilizumab, Rapamycin (Everolimus), and the IKK-beta kinase inhibitor, Salsalate. Salsalate is a century old safe anti-inflammatory drug used in the treatment of arthritis. Long-term safety and efficacy of Salsalate in the treatment of T2DM have been evaluated, which showed improved fasting plasma glucose and reduced HbA1C levels as well as reduced pro-inflammatory markers in T2DM patients. Current publication summarizes the literature review of pathophysiology of role of inflammation in T2DM and clinical efficacy and safety of Salsalate in the treatment of T2DM.
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Affiliation(s)
- I Hasan
- RH Nanopharmaceuticals LLC, 140 Ocean Ave, Monmouth Beach, New Jersey, 07750, USA.
| | - K D Rainsford
- Emeritus Professor of Biomedical Sciences, Department of Biosciences and Chemistry, BMRC, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK
| | - Joel S Ross
- RH Nanopharmaceuticals LLC, 140 Ocean Ave, Monmouth Beach, New Jersey, 07750, USA
- J & D Pharmaceuticals LLC, Monmouth County, USA
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Gupta T, Najumuddin, Rajendran D, Gujral A, Jangra A. Metabolism configures immune response across multi-systems: Lessons from COVID-19. Adv Biol Regul 2023; 90:100977. [PMID: 37690286 DOI: 10.1016/j.jbior.2023.100977] [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: 03/10/2023] [Revised: 07/19/2023] [Accepted: 08/16/2023] [Indexed: 09/12/2023]
Abstract
Several studies over the last decade demonstrate the recruitment of immune cells, increased inflammatory cytokines, and chemokine in patients with metabolic diseases, including heart failure, parenchymal inflammation, obesity, tuberculosis, and diabetes mellitus. Metabolic rewiring of immune cells is associated with the severity and prevalence of these diseases. The risk of developing COVID-19/SARS-CoV-2 infection increases in patients with metabolic dysfunction (heart failure, diabetes mellitus, and obesity). Several etiologies, including fatigue, dyspnea, and dizziness, persist even months after COVID-19 infection, commonly known as Post-Acute Sequelae of CoV-2 (PASC) or long COVID. A chronic inflammatory state and metabolic dysfunction are the factors that contribute to long COVID. Here, this study explores the potential link between pathogenic metabolic and immune alterations across different organ systems that could underlie COVID-19 and PASC. These interactions could be utilized for targeted future therapeutic approaches.
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Affiliation(s)
- Tinku Gupta
- Department of Pharmacognosy & Phytochemistry, School of Pharmaceutical Education and Research, Jamia Hamdard (Deemed University), M. B. Road, New Delhi 110062, India
| | - Najumuddin
- Program of Biotechnology, Department of Applied Sciences, Faculty of Engineering, Science and Technology, Hamdard University, Karachi, Pakistan
| | - Dhanya Rajendran
- Rajiv Gandhi Centre for Biotechnology, Trivandrum, Kerala, 695014, India
| | - Akash Gujral
- Department of Medicine, Nyu Grossman School of Medicine, NY, USA
| | - Ashok Jangra
- Department of Pharmaceutical Sciences, Central University of Haryana, Mahendergarh, Haryana, India.
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Atteia HH, AlFaris NA, Alshammari GM, Alamri E, Ahmed SF, Albalwi R, Abdel-Sattar SAL. The Hepatic Antisteatosis Effect of Xanthohumol in High-Fat Diet-Fed Rats Entails Activation of AMPK as a Possible Protective Mechanism. Foods 2023; 12:4214. [PMID: 38231665 DOI: 10.3390/foods12234214] [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: 10/20/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 01/19/2024] Open
Abstract
Obesity is the leading cause of non-alcoholic fatty liver disease by provoking hyperglycemia, hyperlipidemia, insulin resistance, oxidative stress, and inflammation. Low activity of AMP-activated protein kinase (AMPK) is linked to obesity, liver injury, and NAFLD. This study involves examining if the anti-steatosis effect of Xanthohumol (XH) in high-fat diet (HFD)-fed rats involves the regulation of AMPK. Adult male rats were divided into five groups (n = 8 each) as control (3.85 kcal/g); XH (control diet + 20 mg/kg), HFD (4.73 kcl/g), HFD + XH (20 mg/kg), and HFD + XH (30 mg/kg) + compound c (cc) (0.2 mg/kg). All treatments were conducted for 12 weeks. Treatment with XH attenuated the gain in body weight, fat pads, fasting glucose, and insulin in HFD rats. It also lowered serum leptin and free fatty acids (FFAs) and improved glucose and insulin tolerances in these rats. It also attenuated the increase in serum livers of liver marker enzymes and reduced serum and hepatic levels of triglycerides (TGs), cholesterol (CHOL), FFAs, as well as serum levels of low-density lipoproteins cholesterol (LDL-c) oxidized LDL-c. XH also reduced hepatic levels of malondialdehyde (MDA), nuclear accumulation of NF-κB, and the levels of tumor necrosis-factor-α (TNF-α) and interleukin-6 (IL-6) while stimulating the nuclear levels of Nrf2 and total levels of glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) in these HFD-fed rats. At the molecular levels, XH increased hepatic mRNA expression and phosphorylation of AMPK (Thr72) and reduced the expression of lipogenic genes SREBP1c and ACC-1. In concomitance, XH reduced hepatic liver droplet accumulation, reduced the number of apoptotic nuclei, and improved the structures of nuclei, mitochondria, and rough endoplasmic reticulum. Co-treatment with CC, an AMPK inhibitor, completely abolished all these effects of XH. In conclusion, XH attenuates obesity and HFD-mediated hepatic steatosis by activating hepatic AMPK.
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Affiliation(s)
- Hebatallah Husseini Atteia
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk P.O. Box 47512, Saudi Arabia
| | - Nora A AlFaris
- Department of Physical Sports Sciences, College of Sports Sciences & Physical Activity, Princess Nourah bint Abdulrahman University, Riyadh P.O. Box 84428, Saudi Arabia
| | - Ghedeir M Alshammari
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Eman Alamri
- Department of Food Science and Nutrition, University of Tabuk, Tabuk P.O. Box 47512, Saudi Arabia
| | - Salwa Fares Ahmed
- Department of Anatomy, Faculty of Medicine, University of Tabuk, Tabuk P.O. Box 47512, Saudi Arabia
- Department of Histology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Renad Albalwi
- Department of Food Science and Nutrition, University of Tabuk, Tabuk P.O. Box 47512, Saudi Arabia
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Burton MA, Garratt ES, Hewitt MO, Sharkh HY, Antoun E, Westbury LD, Dennison EM, Harvey NC, Cooper C, MacIsaac JL, Kobor MS, Patel HP, Godfrey KM, Lillycrop KA. DNA methylation of insulin signaling pathways is associated with HOMA2-IR in primary myoblasts from older adults. Skelet Muscle 2023; 13:17. [PMID: 37898813 PMCID: PMC10612387 DOI: 10.1186/s13395-023-00326-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 10/09/2023] [Indexed: 10/30/2023] Open
Abstract
BACKGROUND While ageing is associated with increased insulin resistance (IR), the molecular mechanisms underlying increased IR in the muscle, the primary organ for glucose clearance, have yet to be elucidated in older individuals. As epigenetic processes are suggested to contribute to the development of ageing-associated diseases, we investigated whether differential DNA methylation was associated with IR in human primary muscle stem cells (myoblasts) from community-dwelling older individuals. METHODS We measured DNA methylation (Infinium HumanMethylationEPIC BeadChip) in myoblast cultures from vastus lateralis biopsies (119 males/females, mean age 78.24 years) from the Hertfordshire Sarcopenia Study extension (HSSe) and examined differentially methylated cytosine phosphate guanine (CpG) sites (dmCpG), regions (DMRs) and gene pathways associated with HOMA2-IR, an index for the assessment of insulin resistance, and levels of glycated hemoglobin HbA1c. RESULTS Thirty-eight dmCpGs (false discovery rate (FDR) < 0.05) were associated with HOMA2-IR, with dmCpGs enriched in genes linked with JNK, AMPK and insulin signaling. The methylation signal associated with HOMA2-IR was attenuated after the addition of either BMI (6 dmCpGs), appendicular lean mass index (ALMi) (7 dmCpGs), grip strength (15 dmCpGs) or gait speed (23 dmCpGs) as covariates in the model. There were 8 DMRs (Stouffer < 0.05) associated with HOMA2-IR, including DMRs within T-box transcription factor (TBX1) and nuclear receptor subfamily-2 group F member-2 (NR2F2); the DMRs within TBX1 and NR2F2 remained associated with HOMA2-IR after adjustment for BMI, ALMi, grip strength or gait speed. Forty-nine dmCpGs and 21 DMRs were associated with HbA1c, with cg13451048, located within exoribonuclease family member 3 (ERI3) associated with both HOMA2-IR and HbA1c. HOMA2-IR and HbA1c were not associated with accelerated epigenetic ageing. CONCLUSIONS These findings suggest that insulin resistance is associated with differential DNA methylation in human primary myoblasts with both muscle mass and body composition making a significant contribution to the methylation changes associated with IR.
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Affiliation(s)
- Mark A Burton
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Emma S Garratt
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Matthew O Hewitt
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Hanan Y Sharkh
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
- Biological Sciences, University of Southampton, Southampton, UK
| | - Elie Antoun
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Leo D Westbury
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
| | - Elaine M Dennison
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
| | - Nicholas C Harvey
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
| | - Cyrus Cooper
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Julia L MacIsaac
- Department of Medical Genetics, Faculty of Medicine, Edwin S.H. Leong Healthy Aging Program, University of British Columbia, Vancouver, Canada
| | - Michael S Kobor
- Department of Medical Genetics, Faculty of Medicine, Edwin S.H. Leong Healthy Aging Program, University of British Columbia, Vancouver, Canada
| | - Harnish P Patel
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
- Faculty of Medicine, Academic Geriatric Medicine, University of Southampton, Southampton, UK
| | - Keith M Godfrey
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK
- MRC Lifecourse Epidemiology Centre, University of Southampton, Southampton, UK
| | - Karen A Lillycrop
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK.
- NIHR Southampton Biomedical Research Centre, University of Southampton & University Hospital Southampton NHS Foundation Trust, Southampton, UK.
- Biological Sciences, University of Southampton, Southampton, UK.
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Socodato R, Rodrigues-Santos A, Tedim-Moreira J, Almeida TO, Canedo T, Portugal CC, Relvas JB. RhoA balances microglial reactivity and survival during neuroinflammation. Cell Death Dis 2023; 14:690. [PMID: 37863874 PMCID: PMC10589285 DOI: 10.1038/s41419-023-06217-w] [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: 10/07/2022] [Revised: 09/29/2023] [Accepted: 10/13/2023] [Indexed: 10/22/2023]
Abstract
Microglia are the largest myeloid cell population in the brain. During injury, disease, or inflammation, microglia adopt different functional states primarily involved in restoring brain homeostasis. However, sustained or exacerbated microglia inflammatory reactivity can lead to brain damage. Dynamic cytoskeleton reorganization correlates with alterations of microglial reactivity driven by external cues, and proteins controlling cytoskeletal reorganization, such as the Rho GTPase RhoA, are well positioned to refine or adjust the functional state of the microglia during injury, disease, or inflammation. Here, we use multi-biosensor-based live-cell imaging approaches and tissue-specific conditional gene ablation in mice to understand the role of RhoA in microglial response to inflammation. We found that a decrease in RhoA activity is an absolute requirement for microglial metabolic reprogramming and reactivity to inflammation. However, without RhoA, inflammation disrupts Ca2+ and pH homeostasis, dampening mitochondrial function, worsening microglial necrosis, and triggering microglial apoptosis. Our results suggest that a minimum level of RhoA activity is obligatory to concatenate microglia inflammatory reactivity and survival during neuroinflammation.
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Affiliation(s)
- Renato Socodato
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.
| | - Artur Rodrigues-Santos
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Joana Tedim-Moreira
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
- Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Tiago O Almeida
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
- ICBAS - School of Medicine and Biomedical Sciences, Porto, Portugal
| | - Teresa Canedo
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Camila C Portugal
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - João B Relvas
- Institute of Research and Innovation in Health (i3S) and Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.
- Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal.
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40
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Shang R, Miao J. Mechanisms and effects of metformin on skeletal muscle disorders. Front Neurol 2023; 14:1275266. [PMID: 37928155 PMCID: PMC10621799 DOI: 10.3389/fneur.2023.1275266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Skeletal muscle disorders are mostly genetic and include several rare diseases. With disease progression, muscle fibrosis and adiposis occur, resulting in limited mobility. The long course of these diseases combined with limited treatment options affect patients both psychologically and economically, hence the development of novel treatments for neuromuscular diseases is crucial to obtain a better quality of life. As a widely used hypoglycemic drug in clinical practice, metformin not only has anti-inflammatory, autophagy-regulating, and mitochondrial biogenesis-regulating effects, but it has also been reported to improve the symptoms of neuromuscular diseases, delay hypokinesia, and regulate skeletal muscle mass. However, metformin's specific mechanism of action in neuromuscular diseases requires further elucidation. This review summarizes the evidence showing that metformin can regulate inflammation, autophagy, and mitochondrial biogenesis through different pathways, and further explores its mechanism of action in Duchenne muscular dystrophy, statin-associated muscle disorders, and age-related sarcopenia. This review clarifies the directions of future research on therapy for neuromuscular diseases.
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Affiliation(s)
| | - Jing Miao
- Department of Neurology, The First Hospital of Jilin University, Changchun, China
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41
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da Costa Fernandes CJ, da Cruz Rodrigues KC, de Melo DG, de Campos TDP, Dos Santos Canciglieri R, Simabuco FM, da Silva ASR, Cintra DE, Ropelle ER, Pauli JR, de Moura LP. Short-term strength exercise reduces the macrophage M1/M2 ratio in white adipose tissue of obese animals. Life Sci 2023; 329:121916. [PMID: 37419412 DOI: 10.1016/j.lfs.2023.121916] [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: 05/23/2023] [Revised: 06/26/2023] [Accepted: 07/04/2023] [Indexed: 07/09/2023]
Abstract
Obesity can exacerbate the systemic inflammatory process, leading to increased infiltration of monocytes in white adipose tissue (WAT) and polarization of these cells into pro-inflammatory M1 macrophages, while reducing the population of anti-inflammatory M2 macrophages. Aerobic exercise has been shown to be effective in reducing the pro-inflammatory profile. However, the impact of strength training and the duration of training on macrophage polarization in the WAT of obese individuals have not been widely studied. Therefore, our aim was to investigate the effects of resistance exercise on macrophage infiltration and polarization in the epididymal and subcutaneous adipose tissue of obese mice. We compared the following groups: Control (CT), Obese (OB), Obese 7-day strength training (STO7d), and Obese 15-day strength training (STO15d). Macrophage populations were evaluated by flow cytometry: total macrophages (F4/80+), M1 (CD11c), and M2 (CD206) macrophages. Our results demonstrated that both training protocols improved peripheral insulin sensitivity by increasing AKT phosphorylation (Ser473). Specifically, the 7-day training regimen reduced total macrophage infiltration and M2 macrophage levels without altering M1 levels. In the STO15d group, significant differences were observed in total macrophage levels, M1 macrophages, and the M1/M2 ratio compared to the OB group. In the epididymal tissue, a reduction in the M1/M2 ratio was observed in the STO7d group. Overall, our data demonstrate that 15 days of strength exercise can reduce the M1/M2 ratio of macrophages in white adipose tissue.
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Affiliation(s)
- Célio Junior da Costa Fernandes
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Kellen Cristina da Cruz Rodrigues
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Diego Gomes de Melo
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Thais Dantis Pereira de Campos
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Raphael Dos Santos Canciglieri
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Fernando Moreira Simabuco
- Multidisciplinary Laboratory of Food and Health (LABMAS), School of Applied Sciences (FCA), University of Campinas (UNICAMP), Limeira, São Paulo, Brazil; Department of Biochemistry, Federal University of São Paulo (UNIFESP), Brazil
| | | | - Dennys Esper Cintra
- Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Eduardo Rochete Ropelle
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - José Rodrigo Pauli
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | - Leandro Pereira de Moura
- Exercise Cell Biology Lab, School of Applied Sciences, University of Campinas, Limeira, Brazil; Laboratory of Molecular Biology of Exercise, School of Applied Sciences, University of Campinas, Limeira, Brazil.
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42
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Ahmed AA, Mohamed SK, Nofal S, El Morsy EM, Ahmed AAE. Targeting the adenosine monophosphate-activated protein kinase signalling pathway by bempedoic acid attenuates Angiotensin II-induced cardiac remodelling in renovascular hypertension in rats. Life Sci 2023; 329:121963. [PMID: 37473803 DOI: 10.1016/j.lfs.2023.121963] [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: 06/11/2023] [Revised: 07/09/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
The crosstalk between the renin-angiotensin system and Adenosine monophosphate-activated protein kinase (AMPK) gained significant interest due to their involvement in the pathogenesis of several cardiovascular diseases. Angiotensin II (Ang II) plays a crucial role in developing cardiac remodelling by inducing energy imbalance, inflammation, oxidative and endoplasmic reticulum stress, and transforming growth factor-β (TGF-β)-induced fibrosis. Ang II directly or through extracellular signal-regulated kinase (ERK) activation impairs AMPK signalling with well-known antioxidant, anti-inflammatory, and anti-fibrotic effects. AIM This study aimed to investigate the role of bempedoic acid, a novel antihyperlipidemic drug, in attenuating hypertension-induced cardiac remodelling in rats by modulating Ang II-induced damage and activating the AMPK signalling pathway. METHOD Sixty adult male Sprague Dawley rats were randomly allocated into the Sham control group, Hypertensive group, Captopril group (30 mg/kg), and Bempedoic acid group (30 mg/kg). Hypertension was induced by left renal artery ligation in all groups except the Sham control group. Treatment with captopril and bempedoic acid started 14 days post-surgy and lasted two weeks. Finally, Hemodynamic measurements and electrocardiographic examination were done followed by heart tissue samples collection for biochemical, histopathological, and immunohistochemical examinations. KEY FINDINGS Bempedoic acid preserved the cardiac function and electrocardiogram patterns. It inhibited endoplasmic reticulum stress, exhibited antioxidant activity, and increased endothelial nitric oxide synthase activity. Bempedoic acid interfered with ERK signalling pathways, including nuclear factor-κB and TGF-β, exerting anti-inflammatory and anti-fibrotic effects. SIGNIFICANCE These findings indicate the cardioprotective and antihypertrophic activity of bempedoic acid, which are suggested to result from energy-independent AMPK downstream signalling activation.
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Affiliation(s)
- Asmaa A Ahmed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Egypt.
| | - Shimaa K Mohamed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Egypt.
| | - Shahira Nofal
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Egypt.
| | - Engy M El Morsy
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Egypt.
| | - Amany A E Ahmed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Helwan University, Ein Helwan, Egypt.
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Kawata M, McClatchy DB, Diedrich JK, Olmer M, Johnson KA, Yates JR, Lotz MK. Mocetinostat activates Krüppel-like factor 4 and protects against tissue destruction and inflammation in osteoarthritis. JCI Insight 2023; 8:e170513. [PMID: 37681413 PMCID: PMC10544226 DOI: 10.1172/jci.insight.170513] [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: 03/17/2023] [Accepted: 07/19/2023] [Indexed: 09/09/2023] Open
Abstract
Osteoarthritis (OA) is the most common joint disorder, and disease-modifying OA drugs (DMOADs) represent a major need in OA management. Krüppel-like factor 4 (KLF4) is a central transcription factor upregulating regenerative and protective functions in joint tissues. This study was aimed to identify small molecules activating KLF4 expression and to determine functions and mechanisms of the hit compounds. High-throughput screening (HTS) with 11,948 clinical-stage compounds was performed using a reporter cell line detecting endogenous KLF4 activation. Eighteen compounds were identified through the HTS and confirmed in a secondary screen. After testing in SW1353 chondrosarcoma cells and human chondrocytes, mocetinostat - a class I selective histone deacetylase (HDAC) inhibitor - had the best profile of biological activities. Mocetinostat upregulated cartilage signature genes in human chondrocytes, meniscal cells, and BM-derived mesenchymal stem cells, and it downregulated hypertrophic, inflammatory, and catabolic genes in those cells and synoviocytes. I.p. administration of mocetinostat into mice reduced severity of OA-associated changes and improved pain behaviors. Global gene expression and proteomics analyses revealed that regenerative and protective effects of mocetinostat were dependent on peroxisome proliferator-activated receptor γ coactivator 1-α. These findings show therapeutic and protective activities of mocetinostat against OA, qualifying it as a candidate to be used as a DMOAD.
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Affiliation(s)
- Manabu Kawata
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | - Daniel B. McClatchy
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | - Jolene K. Diedrich
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | - Merissa Olmer
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | | | - John R. Yates
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
| | - Martin K. Lotz
- Department of Molecular Medicine, Scripps Research, La Jolla, California, USA
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Abdeljalil SM, Wahdan SA, Elghazaly H, Tolba MF. Insights into the therapeutic outcomes of trimetazidine/doxorubicin combination in Ehrlich solid-phase carcinoma mouse tumor model. Life Sci 2023; 328:121874. [PMID: 37352914 DOI: 10.1016/j.lfs.2023.121874] [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: 02/26/2023] [Revised: 06/15/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023]
Abstract
One of the key features of cancer is metabolic reprogramming that can be exploited to sensitize cancer cells to chemotherapy. Trimetazidine (TMZ) is a metabolic anti-ischemic drug that blocks the activity of long-chain 3-ketoacyl CoA thiolase leading to the inhibition of fatty acid oxidation. AIMS The objective of the current investigation was to evaluate the idea that TMZ could synergize the antitumor activity of doxorubicin (DOX). MAIN METHODS The hypothesis was examined in vitro using the human breast cancer cell lines MCF-7 and MDA-MB231. In addition, the in vivo experiments were conducted using the Ehrlich solid phase carcinoma model. KEY FINDINGS In vitro cytotoxicity experiments demonstrated that TMZ improved the potency of DOX in MCF-7 cell lines in a synergistic manner. In vivo testing confirmed that DOX/TMZ combination exhibits synergistic effect at both DOX/TMZ 1:10 and 1:5 ratios, where DOX was administered at one tenth and one fifth of its original dose, respectively. The co-treatment (1:5 ratio) significantly reduced tumor Nicotinamide adenine dinucleotide (NAD)+/NADH ratio (6.1-fold) and Adenosine triphosphate (ATP) levels (61 %) with concurrent activation of AMP-activated protein kinase (AMPK) (2.2-fold) and peroxisome proliferator-activated receptor-gamma coactivator (PGC)1-α (5.5-fold) protein expression versus control. The same treatment decreased the nuclear levels of NF-κB (p65) (57.5 %) and induced tumor apoptosis as evidenced by elevated Bax/Bcl-2 ratio (6.8-fold) along with active caspase-3 levels (6.6-fold) against control. SIGNIFICANCE The current investigation constitutes a proof-of-concept study that provided preclinical evidence for the anticancer activity of DOX/TMZ combination and warrants further investigation for repurposing TMZ in DOX protocols.
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Affiliation(s)
- Somaya M Abdeljalil
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Hesham Elghazaly
- Clinical Oncology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt; Medical Research Center (MASRI), Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mai F Tolba
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt; Center of Drug Discovery Research and Development, Ain Shams University, Cairo, Egypt.
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Park JH, Lee J, Lee GR, Kwon M, Lee HI, Kim N, Kim HJ, Lee MO, Jeong W. Cholesterol sulfate inhibits osteoclast differentiation and survival by regulating the AMPK-Sirt1-NF-κB pathway. J Cell Physiol 2023; 238:2063-2075. [PMID: 37334825 DOI: 10.1002/jcp.31064] [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: 11/29/2022] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/21/2023]
Abstract
Cholesterol sulfate (CS) is an activator of retinoic acid-related orphan receptor α (RORα). CS treatment or RORα overexpression attenuates osteoclastogenesis in a collagen-induced arthritis mouse model. However, the mechanism by which CS and RORα regulate osteoclast differentiation remains largely unknown. Thus, we aimed to investigate the role of CS and RORα in osteoclastogenesis and their underlying mechanism. CS inhibited osteoclast differentiation, but RORα deficiency did not affect osteoclast differentiation and CS-mediated inhibition of osteoclastogenesis. CS enhanced adenosine monophosphate-activated protein kinase (AMPK) phosphorylation and sirtuin1 (Sirt1) activity, leading to nuclear factor-κB (NF-κB) inhibition by decreasing acetylation at Lys310 of p65. The NF-κB inhibition was restored by AMPK inhibitor, but the effects of CS on AMPK and NF-κB were not altered by RORα deficiency. CS also induced osteoclast apoptosis, which may be due to sustained AMPK activation and consequent NF-κB inhibition, and the effects of CS were significantly reversed by interleukin-1β treatment. Collectively, these results indicate that CS inhibits osteoclast differentiation and survival by suppressing NF-κB via the AMPK-Sirt1 axis in a RORα-independent manner. Furthermore, CS protects against bone destruction in lipopolysaccharide- and ovariectomy-mediated bone loss mouse models, suggesting that CS is a useful therapeutic candidate for treating inflammation-induced bone diseases and postmenopausal osteoporosis.
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Affiliation(s)
- Jin Ha Park
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Jiae Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Gong-Rak Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Minjeong Kwon
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Hye In Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Narae Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Hee Jin Kim
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
| | - Mi-Ock Lee
- College of Pharmacy and Bio-MAX Institute, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Woojin Jeong
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Korea
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Keegan GL, Bhardwaj N, Abdelhafiz AH. The outcome of frailty in older people with diabetes as a function of glycaemic control and hypoglycaemic therapy: a review. Expert Rev Endocrinol Metab 2023; 18:361-375. [PMID: 37489773 DOI: 10.1080/17446651.2023.2239907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/08/2023] [Accepted: 07/19/2023] [Indexed: 07/26/2023]
Abstract
INTRODUCTION Frailty is an emerging and newly recognized complication of diabetes in older people. However, frailty is not thoroughly investigated in diabetes outcome studies. AREAS COVERED This manuscript reviews the effect of glycemic control and hypoglycemic therapy on the incidence of frailty in older people with diabetes. EXPERT OPINION Current studies show that both low glycemia and high glycemia are associated with frailty. However, most of the studies, especially low glycemia studies, are cross-sectional or retrospective, suggesting association, rather than causation, of frailty. In addition, frail patients in the low glycemia studies are characterized by lower body weight or lower body mass index (BMI), contrary to those in the high glycemia studies, who are either overweight or obese. This may suggest that frailty has a heterogeneous metabolic spectrum, starting with an anorexic malnourished (AM) phenotype at one end, which is associated with low glycemia and a sarcopenic obese (SO) phenotype on the other end, which is associated with high glycemia. The current little evidence suggests that poor glycemic control increases the risk of frailty, but there is a paucity of evidence to suggest that tight glycemic control would reduce the risk of incident frailty. Metformin is the only well-studied hypoglycemic agent, so far, to have a protective effect against frailty independent of glycemic control in the non-frail older people with diabetes. However, once frailty is developed, the choice of the best hypoglycemic agent for these patients will be affected by the metabolic phenotype of frailty. For example, sodium glucose transporter-2 (SGLT-2) inhibitors and glucagon-like peptide-1 receptor agonists (GLP-1RA) are appropriate in the SO phenotype due to their weight losing properties, while insulin therapy may be considered early in the AM phenotype due to its anabolic and weight gaining benefits. Future studies are still required to further investigate the metabolic effects of frailty on older people with diabetes, determine the most appropriate HbA1c target, and explore the most suitable hypoglycemic agent in each metabolic phenotype of frailty.
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Affiliation(s)
- Grace L Keegan
- Department of Geriatric Medicine, Rotherham General Hospital, Rotherham, UK
| | - Namita Bhardwaj
- Department of Geriatric Medicine, Rotherham General Hospital, Rotherham, UK
| | - Ahmed H Abdelhafiz
- Department of Geriatric Medicine, Rotherham General Hospital, Rotherham, UK
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Tanaka M, Inoue H, Takahashi N, Uehara M. AMPK negatively regulates RANKL-induced osteoclast differentiation by controlling oxidative stress. Free Radic Biol Med 2023; 205:107-115. [PMID: 37270032 DOI: 10.1016/j.freeradbiomed.2023.05.033] [Citation(s) in RCA: 2] [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: 02/08/2023] [Revised: 05/17/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
AMP-activated protein kinase (AMPK) is a crucial energy sensor of cellular metabolism under various metabolic stresses, such as oxidative stress and inflammation. AMPK deficiency increases osteoclast numbers and reduces bone mass; however, the precise mechanisms remain unclear. This study aimed to clarify the mechanistic connection between AMPK and osteoclast differentiation, and the potential role of AMPK in the anti-resorptive effects of several phytochemicals. We found that receptor activator of nuclear factor-kappa B (NF-κB) ligand (RANKL)-induced osteoclast differentiation, osteoclastic gene expression, and activation of mitogen-activated protein kinase (MAPK) and NF-κB were promoted in cells transfected with AMPK siRNA. AMPK knockdown led to defective synthesis of heme oxygenase-1, an antioxidant enzyme, and the upstream mediator, nuclear factor erythroid-2-related factor 2. Furthermore, treatment with N-acetyl-l-cysteine, an antioxidant, abolished osteoclast differentiation and MAPK/NF-κB activation induced by AMPK knockdown. AMPK activators, hesperetin, gallic acid, resveratrol, and curcumin, suppressed osteoclast differentiation via the activation of AMPK. These results suggest that AMPK inhibits RANKL-induced osteoclast differentiation by enhancing antioxidant defense system and regulating oxidative stress. AMPK activation by dietary-derived phytochemicals may be effective for the treatment of bone diseases.
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Affiliation(s)
- Miori Tanaka
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan; The Nippon Foundation Human Milk Bank, 17-10 Nihonbashi-koamicho, Chuo-ku, Tokyo, 103-0016, Japan
| | - Hirofumi Inoue
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Nobuyuki Takahashi
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan
| | - Mariko Uehara
- Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502, Japan.
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Dubuisson N, Versele R, Davis-López de Carrizosa MA, Selvais CM, Noel L, Planchon C, Van den Bergh PYK, Brichard SM, Abou-Samra M. The Adiponectin Receptor Agonist, ALY688: A Promising Therapeutic for Fibrosis in the Dystrophic Muscle. Cells 2023; 12:2101. [PMID: 37626911 PMCID: PMC10453606 DOI: 10.3390/cells12162101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Duchenne muscular dystrophy (DMD) is one of the most devastating myopathies, where severe inflammation exacerbates disease progression. Previously, we demonstrated that adiponectin (ApN), a hormone with powerful pleiotropic effects, can efficiently improve the dystrophic phenotype. However, its practical therapeutic application is limited. In this study, we investigated ALY688, a small peptide ApN receptor agonist, as a potential novel treatment for DMD. Four-week-old mdx mice were subcutaneously treated for two months with ALY688 and then compared to untreated mdx and wild-type mice. In vivo and ex vivo tests were performed to assess muscle function and pathophysiology. Additionally, in vitro tests were conducted on human DMD myotubes. Our results showed that ALY688 significantly improved the physical performance of mice and exerted potent anti-inflammatory, anti-oxidative and anti-fibrotic actions on the dystrophic muscle. Additionally, ALY688 hampered myonecrosis, partly mediated by necroptosis, and enhanced the myogenic program. Some of these effects were also recapitulated in human DMD myotubes. ALY688's protective and beneficial properties were mainly mediated by the AMPK-PGC-1α axis, which led to suppression of NF-κβ and TGF-β. Our results demonstrate that an ApN mimic may be a promising and effective therapeutic prospect for a better management of DMD.
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Affiliation(s)
- Nicolas Dubuisson
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
- Neuromuscular Reference Center, Department of Neurology, Cliniques Universitaires Saint-Luc, Avenue Hippocrate 10, 1200 Brussels, Belgium;
| | - Romain Versele
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
| | - Maria A. Davis-López de Carrizosa
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
- Departamento de Fisiología, Facultad de Biología, Universidad de Sevilla, 41012 Seville, Spain
| | - Camille M. Selvais
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
| | - Laurence Noel
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
| | - Chloé Planchon
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
| | - Peter Y. K. Van den Bergh
- Neuromuscular Reference Center, Department of Neurology, Cliniques Universitaires Saint-Luc, Avenue Hippocrate 10, 1200 Brussels, Belgium;
| | - Sonia M. Brichard
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
| | - Michel Abou-Samra
- Endocrinology, Diabetes and Nutrition Unit, Institute of Experimental and Clinical Research (IREC), Medical Sector, Université Catholique de Louvain (UCLouvain), Avenue Hippocrate 55, 1200 Brussels, Belgium; (N.D.); (R.V.); (M.A.D.-L.d.C.); (C.M.S.); (L.N.); (C.P.); (S.M.B.)
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49
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Petsouki E, Ender S, Sosa Cabrera SN, Heiss EH. AMPK-Mediated Phosphorylation of Nrf2 at S374/S408/S433 Favors Its βTrCP2-Mediated Degradation in KEAP1-Deficient Cells. Antioxidants (Basel) 2023; 12:1586. [PMID: 37627580 PMCID: PMC10451539 DOI: 10.3390/antiox12081586] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/04/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Nrf2 is a transcription factor facilitating cells' resilience against redox and various other forms of stress. In the absence of stressors, KEAP1 and/or βTrCP mediate the ubiquitination of Nrf2 and prevent Nrf2-dependent gene expression and detoxification. AMPK regulates cellular energy homeostasis and redox balance. Previous studies indicated a potential Nrf2-AMPK cooperativity. In line with this, our lab had previously identified three AMPK-dependent phosphorylation sites (S374/408/433) in Nrf2. Given their localization in or near the Neh6 domain, known to regulate βTrCP-mediated degradation, we examined whether they may influence the βTrCP-driven degradation of Nrf2. By employing expression plasmids for WT and triple mutant (TM)-Nrf2 (Nrf2S374/408/433→A), (co)immunoprecipitation, proximity ligation, protein half-life, knockdown, ubiquitination experiments, and qPCR in Keap1-null mouse embryonic fibroblasts, we show that TM-Nrf2S→A374/408/433 had enhanced stability due to impeded interaction with βTrCP2 and reduced ubiquitination in comparison to WT-Nrf2. In addition, TM-Nrf2 elicited higher expression of the Nrf2 target gene Gclc, potentiated in the presence of a pharmacological AMPK activator. Overall, we propose that AMPK-dependent phospho-sites of Nrf2 can favor its βTrCP2-mediated degradation and dampen the extent of Nrf2 target gene expression. Therefore, targeting AMPK might be able to diminish Nrf2-mediated responses in cells with overactive Nrf2 due to KEAP1 deficiency.
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Affiliation(s)
- Eleni Petsouki
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria; (S.E.); (S.N.S.C.); (E.H.H.)
| | - Sylvia Ender
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria; (S.E.); (S.N.S.C.); (E.H.H.)
| | - Shara Natalia Sosa Cabrera
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria; (S.E.); (S.N.S.C.); (E.H.H.)
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport Sciences, University of Vienna, 1090 Vienna, Austria
| | - Elke H. Heiss
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria; (S.E.); (S.N.S.C.); (E.H.H.)
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50
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Barcena ML, Tonini G, Haritonow N, Breiter P, Milting H, Baczko I, Müller‐Werdan U, Ladilov Y, Regitz‐Zagrosek V. Sex and age differences in AMPK phosphorylation, mitochondrial homeostasis, and inflammation in hearts from inflammatory cardiomyopathy patients. Aging Cell 2023; 22:e13894. [PMID: 37365150 PMCID: PMC10410062 DOI: 10.1111/acel.13894] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/28/2023] [Accepted: 05/10/2023] [Indexed: 06/28/2023] Open
Abstract
Linked to exacerbated inflammation, myocarditis is a cardiovascular disease, which may lead to dilated cardiomyopathy. Although sex and age differences in the development of chronic myocarditis have been postulated, underlying cellular mechanisms remain poorly understood. In the current study, we aimed to investigate sex and age differences in mitochondrial homeostasis, inflammation, and cellular senescence. Cardiac tissue samples from younger and older patients with inflammatory dilated cardiomyopathy (DCMI) were used. The expression of Sirt1, phosphorylated AMPK, PGC-1α, Sirt3, acetylated SOD2, catalase, and several mitochondrial genes was analyzed to assess mitochondrial homeostasis. The expression of NF-κB, TLR4, and interleukins was used to examine the inflammatory state in the heart. Finally, several senescence markers and telomere length were investigated. Cardiac AMPK expression and phosphorylation were significantly elevated in male DCMI patients, whereas Sirt1 expression remained unchanged in all groups investigated. AMPK upregulation was accompanied by a preserved expression of all mitochondrial proteins/genes investigated in older male DCMI patients, whereas the expression of TOM40, TIM23, and the mitochondrial oxidative phosphorylation genes was significantly reduced in older female patients. Mitochondrial homeostasis in older male patients was further supported by the reduced acetylation of mitochondrial proteins as indicated by acetylated SOD2. The inflammatory markers NF-κB and TLR4 were downregulated in older male DCMI patients, whereas the expression of IL-18 was increased in older female patients. This was accompanied by progressed senescence in older DCMI hearts. In conclusion, older women experience more dramatic immunometabolic disorders on the cellular level than older men.
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Affiliation(s)
- Maria Luisa Barcena
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
- DZHK (German Centre for Cardiovascular Research)BerlinGermany
| | - Greta Tonini
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
| | - Natalie Haritonow
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
| | - Pavelas Breiter
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
- DZHK (German Centre for Cardiovascular Research)BerlinGermany
| | - Hendrik Milting
- Erich and Hanna Klessmann InstituteHeart and Diabetes Centre NRW, University Hospital of the Ruhr‐University BochumBad OeynhausenGermany
| | - Istvan Baczko
- Department of Pharmacology and Pharmacotherapy, Albert Szent‐Györgyi Medical SchoolUniversity of SzegedSzegedHungary
| | - Ursula Müller‐Werdan
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
| | - Yury Ladilov
- Department of Geriatrics and Medical GerontologyCharité –Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin and Berlin Institute of HealthBerlinGermany
- Department of Cardiovascular Surgery, Heart Center BrandenburgBrandenburg Medical SchoolBernau bei BerlinGermany
| | - Vera Regitz‐Zagrosek
- DZHK (German Centre for Cardiovascular Research)BerlinGermany
- Institute for Gender in Medicine, Center for Cardiovascular Research, Charité University HospitalBerlinGermany
- Department of CardiologyUniversity Hospital Zürich, University of ZürichZürichSwitzerland
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