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Sun Y, Hu H, Liu Z, Xu J, Gao Y, Zhan X, Zhou S, Zhong W, Wu D, Wang P, Rao Z, Kong L, Zhou H. Macrophage STING signaling promotes NK cell to suppress colorectal cancer liver metastasis via 4-1BBL/4-1BB co-stimulation. J Immunother Cancer 2023; 11:jitc-2022-006481. [PMID: 36927529 PMCID: PMC10030919 DOI: 10.1136/jitc-2022-006481] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND AND AIMS Macrophage innate immune response plays an important role in tumorigenesis. However, the role and mechanism of macrophage STING signaling in modulating tumor microenvironment to suppress tumor growth at secondary sites remains largely unclear. METHODS STING expression was assessed in liver samples from patients with colorectal cancer (CRC) liver metastasis. Global or myeloid stimulator of interferon gene (STING)-deficient mice, myeloid NOD-like receptor protein 3 (NLRP3)-deficient mice, and wild-type (WT) mice were subjected to a mouse model of CRC liver metastasis by intrasplenic injection of murine colon carcinoma cells (MC38). Liver non-parenchymal cells including macrophages and natural killer (NK) cells were isolated for flow cytometry analysis. Bone marrow-derived macrophages pretreated with MC38 were co-cultured with splenic NK cells for in vitro studies. RESULTS Significant activation of STING signaling were detected in adjacent and tumor tissues and intrahepatic macrophages. Global or myeloid STING-deficient mice had exacerbated CRC liver metastasis and shorten survival, with decreased intrahepatic infiltration and impaired antitumor function of NK cells. Depletion of NK cells in WT animals increased their metastatic burden, while no significant effects were observed in myeloid STING-deficient mice. STING activation contributed to the secretion of interleukin (IL)-18 and IL-1β by macrophages, which optimized antitumor activity of NK cells by promoting the expression of 4-1BBL in macrophages and 4-1BB in NK cells, respectively. Moreover, MC38 treatment activated macrophage NLRP3 signaling, which was inhibited by STING depletion. Myeloid NLRP3 deficiency increased tumor burden and suppressed activation of NK cells. NLRP3 activation by its agonist effectively suppressed CRC liver metastasis in myeloid SITNG-deficient mice. CONCLUSIONS We demonstrated that STING signaling promoted NLRP3-mediated IL-18 and IL-1β production of macrophages to optimize the antitumor function of NK cells via the co-stimulation signaling of 4-1BBL/4-1BB.
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Affiliation(s)
- Yu Sun
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
- Department of Head and Neck Surgical Oncology, Shandong Cancer Hospital and Institute Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Haoran Hu
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Zheng Liu
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Jian Xu
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Yiyun Gao
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Xinyu Zhan
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Shun Zhou
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Weizhe Zhong
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Dongming Wu
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Ping Wang
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Zhuqing Rao
- Department of Anesthesiology, Jiangsu Province People's Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, Jiangsu, China
| | - Lianbao Kong
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
| | - Haoming Zhou
- Hepatobiliary Center, Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation (Nanjing Medical University), Nanjing, Jiangsu, China
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Liu J, Tang M, Li Q, Li Q, Dai Y, Zhou H. ATG2B upregulated in LPS-stimulated BMSCs-derived exosomes attenuates septic liver injury by inhibiting macrophage STING signaling. Int Immunopharmacol 2023; 117:109931. [PMID: 36857936 DOI: 10.1016/j.intimp.2023.109931] [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: 11/23/2022] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023]
Abstract
Pretreated mesenchymal stem cells (MSCs)-derived exosomes have shown great potential in the treatment of various inflammatory diseases. Recent evidence suggests that macrophage stimulator of interferon genes (STING) signal activation plays a critical role in sepsis and septic liver injury. Here, we aimed to investigate the role and effects of lipopolysaccharide (LPS)-pretreated bone marrow mesenchymal stem cells (BMSCs)-derived exosomes (L-Exo) on macrophage STING signaling in septic liver injury. Exosomes were collected from the BMSCs medium via ultracentrifugation. Liver injury, intrahepatic inflammation, and the activation of macrophage STING signaling were analyzed. Mitophagy and the release of mitochondrial DNA (mtDNA) into the cytosol were investigated. Through in vivo and in vitro experiments, L-Exo could markedly attenuate cecal ligation and puncture-induced septic liver injury and inhibit macrophage STING signaling. Mechanistically, L-Exo inhibited macrophage STING signaling by enhancing mitophagy and inhibiting the release of mtDNA into the cytosol. Furthermore, autophagy-related protein 2 homolog B (ATG2B) may be a major factor involved in this effect of L-Exo. These findings reveal that macrophage STING signaling plays an important role in septic liver injury and may be a therapeutic target. In addition, LPS pretreatment is an effective and promising approach for optimizing the therapeutic efficacy of MSCs-derived exosomes in septic liver injury, providing new strategies for treatment.
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Affiliation(s)
- Jia Liu
- Department of Pediatrics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Min Tang
- Department of Pediatrics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Qunchao Li
- Department of Pediatrics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Qing Li
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, Hefei, China
| | - Yuanyuan Dai
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, Hefei, China
| | - Haoquan Zhou
- Department of Pediatrics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, China; Department of Pediatrics, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, Hefei, China.
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53
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Xu J, Wu D, Zhou S, Hu H, Li F, Guan Z, Zhan X, Gao Y, Wang P, Rao Z. MLKL deficiency attenuated hepatocyte oxidative DNA damage by activating mitophagy to suppress macrophage cGAS-STING signaling during liver ischemia and reperfusion injury. Cell Death Discov 2023; 9:58. [PMID: 36765043 PMCID: PMC9918524 DOI: 10.1038/s41420-023-01357-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Mixed-lineage kinase domain-like protein (MLKL)-mediated necroptosis has been implicated in aggravating liver ischemia and reperfusion (IR) injury. However, the precise role and mechanism of MLKL in regulating oxidative DNA damage of hepatocytes and subsequent activation of macrophage stimulator of interferon genes (STING) signaling remains unclear. In this study, we investigated the role of MLKL in regulating the interplay between hepatocyte injury and macrophage pro-inflammatory responses during liver IR injury. We found that IR increased MLKL expression in liver tissues of wild type (WT) mice. MLKL knockout (KO) attenuated liver IR injury and suppressed the activation of cGAS-STING signaling in intrahepatic macrophages, which was abrogated by STING activation with its agonist. Mechanistically, IR induced oxidative DNA damage in hepatocytes, leading to cGAS-STING activation in macrophages, which was suppressed by MLKL KO. Moreover, increased PTEN-induced kinase 1 (PINK1)-mediated mitophagy contributed to reduced oxidative DNA damage in hepatocytes and subsequent decreased activation of STING signaling in macrophages in MLKL KO mice. Our findings demonstrated a non-canonical role of MLKL in the pathogenesis of liver IR. MLKL deficiency significantly promoted PINK1-mediated mitophagy activation to inhibit oxidative DNA damage in hepatocytes, which in turn suppressed macrophage cGAS-STING activation and inflammatory liver IR injury.
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Affiliation(s)
- Jian Xu
- grid.477246.40000 0004 1803 0558Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029 Nanjing, China
| | - Dongming Wu
- grid.477246.40000 0004 1803 0558Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029 Nanjing, China
| | - Shun Zhou
- grid.477246.40000 0004 1803 0558Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029 Nanjing, China
| | - Haoran Hu
- grid.477246.40000 0004 1803 0558Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029 Nanjing, China
| | - Fei Li
- grid.412676.00000 0004 1799 0784Department of Anesthesiology, The First Affiliated Hospital of Nanjing Medical University, 210029 Nanjing, China
| | - Zhu Guan
- grid.412676.00000 0004 1799 0784Department of Anesthesiology, The First Affiliated Hospital of Nanjing Medical University, 210029 Nanjing, China
| | - Xinyu Zhan
- grid.477246.40000 0004 1803 0558Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029 Nanjing, China
| | - Yiyun Gao
- grid.477246.40000 0004 1803 0558Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029 Nanjing, China
| | - Ping Wang
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University; Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, 210029, Nanjing, China.
| | - Zhuqing Rao
- Department of Anesthesiology, The First Affiliated Hospital of Nanjing Medical University, 210029, Nanjing, China.
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Reece AS, Hulse GK. Epigenomic and Other Evidence for Cannabis-Induced Aging Contextualized in a Synthetic Epidemiologic Overview of Cannabinoid-Related Teratogenesis and Cannabinoid-Related Carcinogenesis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:16721. [PMID: 36554603 PMCID: PMC9778714 DOI: 10.3390/ijerph192416721] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 05/16/2023]
Abstract
BACKGROUND Twelve separate streams of empirical data make a strong case for cannabis-induced accelerated aging including hormonal, mitochondriopathic, cardiovascular, hepatotoxic, immunological, genotoxic, epigenotoxic, disruption of chromosomal physiology, congenital anomalies, cancers including inheritable tumorigenesis, telomerase inhibition and elevated mortality. METHODS Results from a recently published longitudinal epigenomic screen were analyzed with regard to the results of recent large epidemiological studies of the causal impacts of cannabis. We also integrate theoretical syntheses with prior studies into these combined epigenomic and epidemiological results. RESULTS Cannabis dependence not only recapitulates many of the key features of aging, but is characterized by both age-defining and age-generating illnesses including immunomodulation, hepatic inflammation, many psychiatric syndromes with a neuroinflammatory basis, genotoxicity and epigenotoxicity. DNA breaks, chromosomal breakage-fusion-bridge morphologies and likely cycles, and altered intergenerational DNA methylation and disruption of both the histone and tubulin codes in the context of increased clinical congenital anomalies, cancers and heritable tumors imply widespread disruption of the genome and epigenome. Modern epigenomic clocks indicate that, in cannabis-dependent patients, cannabis advances cellular DNA methylation age by 25-30% at age 30 years. Data have implications not only for somatic but also stem cell and germ line tissues including post-fertilization zygotes. This effect is likely increases with the square of chronological age. CONCLUSION Recent epigenomic studies of cannabis exposure provide many explanations for the broad spectrum of cannabis-related teratogenicity and carcinogenicity and appear to account for many epidemiologically observed findings. Further research is indicated on the role of cannabinoids in the aging process both developmentally and longitudinally, from stem cell to germ cell to blastocystoids to embryoid bodies and beyond.
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Affiliation(s)
- Albert Stuart Reece
- Division of Psychiatry, University of Western Australia, Crawley, WA 6009, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
| | - Gary Kenneth Hulse
- Division of Psychiatry, University of Western Australia, Crawley, WA 6009, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia
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55
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Feng J, Chen Z, Liang W, Wei Z, Ding G. Roles of Mitochondrial DNA Damage in Kidney Diseases: A New Biomarker. Int J Mol Sci 2022; 23:ijms232315166. [PMID: 36499488 PMCID: PMC9735745 DOI: 10.3390/ijms232315166] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
The kidney is a mitochondria-rich organ, and kidney diseases are recognized as mitochondria-related pathologies. Intact mitochondrial DNA (mtDNA) maintains normal mitochondrial function. Mitochondrial dysfunction caused by mtDNA damage, including impaired mtDNA replication, mtDNA mutation, mtDNA leakage, and mtDNA methylation, is involved in the progression of kidney diseases. Herein, we review the roles of mtDNA damage in different setting of kidney diseases, including acute kidney injury (AKI) and chronic kidney disease (CKD). In a variety of kidney diseases, mtDNA damage is closely associated with loss of kidney function. The level of mtDNA in peripheral serum and urine also reflects the status of kidney injury. Alleviating mtDNA damage can promote the recovery of mitochondrial function by exogenous drug treatment and thus reduce kidney injury. In short, we conclude that mtDNA damage may serve as a novel biomarker for assessing kidney injury in different causes of renal dysfunction, which provides a new theoretical basis for mtDNA-targeted intervention as a therapeutic option for kidney diseases.
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Affiliation(s)
- Jun Feng
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
- Nephrology and Urology Research Institute of Wuhan University, Wuhan 430060, China
| | - Zhaowei Chen
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
- Nephrology and Urology Research Institute of Wuhan University, Wuhan 430060, China
| | - Wei Liang
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
- Nephrology and Urology Research Institute of Wuhan University, Wuhan 430060, China
| | - Zhongping Wei
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
- Nephrology and Urology Research Institute of Wuhan University, Wuhan 430060, China
| | - Guohua Ding
- Division of Nephrology, Renmin Hospital of Wuhan University, Wuhan 430060, China
- Nephrology and Urology Research Institute of Wuhan University, Wuhan 430060, China
- Correspondence:
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Sharma R, Diwan B, Sharma A, Witkowski JM. Emerging cellular senescence-centric understanding of immunological aging and its potential modulation through dietary bioactive components. Biogerontology 2022; 23:699-729. [PMID: 36261747 PMCID: PMC9581456 DOI: 10.1007/s10522-022-09995-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/12/2022] [Indexed: 12/13/2022]
Abstract
Immunological aging is strongly associated with the observable deleterious effects of human aging. Our understanding of the causes, effects, and therapeutics of aging immune cells has long been considered within the sole purview of immunosenescence. However, it is being progressively realized that immunosenescence may not be the only determinant of immunological aging. The cellular senescence-centric theory of aging proposes a more fundamental and specific role of immune cells in regulating senescent cell (SC) burden in aging tissues that has augmented the notion of senescence immunotherapy. Now, in addition, several emerging studies are suggesting that cellular senescence itself may be prevalent in aging immune cells, and that senescent immune cells exhibiting characteristic markers of cellular senescence, similar to non-leucocyte cells, could be among the key drivers of various facets of physiological aging. The present review integrates the current knowledge related to immunosenescence and cellular senescence in immune cells per se, and aims at providing a cohesive overview of these two phenomena and their significance in immunity and aging. We present evidence and rationalize that understanding the extent and impact of cellular senescence in immune cells vis-à-vis immunosenescence is necessary for truly comprehending the notion of an 'aged immune cell'. In addition, we also discuss the emerging significance of dietary factors such as phytochemicals, probiotic bacteria, fatty acids, and micronutrients as possible modulators of immunosenescence and cellular senescence. Evidence and opportunities related to nutritional bioactive components and immunological aging have been deliberated to augment potential nutrition-oriented immunotherapy during aging.
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Affiliation(s)
- Rohit Sharma
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India.
| | - Bhawna Diwan
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Anamika Sharma
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research, Hyderabad, 500037, India
| | - Jacek M Witkowski
- Department of Pathophysiology, Medical University of Gdańsk, Dębinki 7, 80-211, Gdańsk, Poland.
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Lawrence GMEP, Holley CL, Schroder K. Parkinson's disease: connecting mitochondria to inflammasomes. Trends Immunol 2022; 43:877-885. [PMID: 36229358 DOI: 10.1016/j.it.2022.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/17/2022] [Accepted: 09/17/2022] [Indexed: 02/06/2023]
Abstract
Activated microglia foster a neurotoxic, inflammatory environment in the mammalian central nervous system (CNS) that drives the pathology of neurodegenerative diseases including Parkinson's disease (PD). Moreover, mitochondrial fission promotes microglial inflammatory responses in vitro. Given that the NLRP3 inflammasome and mitochondria are central regulators of both inflammation and PD, we explore potential functions for the NLRP3 inflammasome and mitochondrial dynamics in PD. Specifically, we propose that inducible microglial mitochondrial fission can promote NLRP3-dependent neuroinflammation in hereditary and idiopathic PD. Further in-depth exploration of this topic can prompt valuable discoveries of the underlying molecular mechanisms of PD neuroinflammation, identify novel candidate anti-inflammatory therapeutics for PD, and ideally provide better outcomes for PD patients.
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Affiliation(s)
- Grace M E P Lawrence
- Institute for Molecular Bioscience (IMB) Centre for Inflammation and Disease Research, University of Queensland, St Lucia, QLD, Australia
| | - Caroline L Holley
- Institute for Molecular Bioscience (IMB) Centre for Inflammation and Disease Research, University of Queensland, St Lucia, QLD, Australia
| | - Kate Schroder
- Institute for Molecular Bioscience (IMB) Centre for Inflammation and Disease Research, University of Queensland, St Lucia, QLD, Australia.
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Hu H, Guo L, Overholser J, Wang X. Mitochondrial VDAC1: A Potential Therapeutic Target of Inflammation-Related Diseases and Clinical Opportunities. Cells 2022; 11:cells11193174. [PMID: 36231136 PMCID: PMC9562648 DOI: 10.3390/cells11193174] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/27/2022] [Accepted: 09/30/2022] [Indexed: 12/03/2022] Open
Abstract
The multifunctional protein, voltage-dependent anion channel 1 (VDAC1), is located on the mitochondrial outer membrane. It is a pivotal protein that maintains mitochondrial function to power cellular bioactivities via energy generation. VDAC1 is involved in regulating energy production, mitochondrial oxidase stress, Ca2+ transportation, substance metabolism, apoptosis, mitochondrial autophagy (mitophagy), and many other functions. VDAC1 malfunction is associated with mitochondrial disorders that affect inflammatory responses, resulting in an up-regulation of the body’s defensive response to stress stimulation. Overresponses to inflammation may cause chronic diseases. Mitochondrial DNA (mtDNA) acts as a danger signal that can further trigger native immune system activities after its secretion. VDAC1 mediates the release of mtDNA into the cytoplasm to enhance cytokine levels by activating immune responses. VDAC1 regulates mitochondrial Ca2+ transportation, lipid metabolism and mitophagy, which are involved in inflammation-related disease pathogenesis. Many scientists have suggested approaches to deal with inflammation overresponse issues via specific targeting therapies. Due to the broad functionality of VDAC1, it may become a useful target for therapy in inflammation-related diseases. The mechanisms of VDAC1 and its role in inflammation require further exploration. We comprehensively and systematically summarized the role of VDAC1 in the inflammatory response, and hope that our research will lead to novel therapeutic strategies that target VDAC1 in order to treat inflammation-related disorders.
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Affiliation(s)
- Hang Hu
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Linlin Guo
- Department of Obstetrics and Gynecology, The Ohio State University Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
- Correspondence: (L.G.); (X.W.)
| | - Jay Overholser
- Department of Obstetrics and Gynecology, The Ohio State University Wexner Medical Center at The Ohio State University, Columbus, OH 43210, USA
| | - Xing Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
- Correspondence: (L.G.); (X.W.)
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Rahmouni F, Badraoui R, Ben-Nasr H, Bardakci F, Elkahoui S, Siddiqui AJ, Saeed M, Snoussi M, Saoudi M, Rebai T. Pharmacokinetics and Therapeutic Potential of Teucrium polium against Liver Damage Associated Hepatotoxicity and Oxidative Injury in Rats: Computational, Biochemical and Histological Studies. LIFE (BASEL, SWITZERLAND) 2022; 12:life12071092. [PMID: 35888180 PMCID: PMC9321387 DOI: 10.3390/life12071092] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 01/18/2023]
Abstract
This study investigated the druggability, pharmacokinetics and ethyl acetate extract of Teucrium polium (EA T. polium) and the protective effect against carbon tetrachloride (CCl4) induced liver cirrhosis in rats. The total antioxidant capacity (TAC) and scavenging activity of the extract were examined. The in vivo protective study was based on the use of an animal model of CCl4-induced liver cirrhosis. Four groups of rats have been used: Group I: control rats; Group II: received CCl4 in olive oil (0.5 mL/kg); Group III: received the EA T. polium (25 mg/kg) of pretreatment for seven days by gavage then CCl4 in olive oil by gavage for 15 days. Group IV: received the EA of T. polium for seven days (25 mg/kg). EA T. polium was found to possess significant antioxidant capacity. CCl4 caused a hepatotoxicity associated increase in both levels of AST and ALT, which were reduced back to normal values following EA T. polium pretreatment. Hepatotoxicity associated structural modifications of liver tissues and increase in thiobarbituric acid reactive substances (TBARS), conjugated dienes (CD) and carbonyl proteins (CP), associated decreases in several assessed antioxidant enzymes such as superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT). The in vivo findings on the protective effect of T. polium were supported by its druggability, its pharmacokinetic properties and molecular docking assays. These results confirm the modulatory antioxidant and hepatoprotective potential of T. polium in this experimental liver cirrhosis model. T. polium phytochemicals are good candidates for further pharmaceutical explorations and drug design.
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Affiliation(s)
- Fatma Rahmouni
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia; (F.R.); (T.R.)
| | - Riadh Badraoui
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
- Section of Histology-Cytology, Medicine Faculty of Tunis, Tunis El Manar University, La Rabta, Tunis 1007, Tunisia
- Correspondence:
| | - Hmed Ben-Nasr
- Laboratory of Pharmacology, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia;
- Department of Biology, Faculty of Sciences of Gafsa, University of Gafsa, Zarroug, Gafsa 2112, Tunisia
| | - Fevzi Bardakci
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Salem Elkahoui
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Arif J. Siddiqui
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Mohd Saeed
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Mejdi Snoussi
- Department of Biology, College of Science, University of Ha’il, Ha’il 81451, Saudi Arabia; (F.B.); (S.E.); (A.J.S.); (M.S.); (M.S.)
| | - Mongi Saoudi
- Laboratory of Animal Physiology, Sciences Faculty of Sfax, University of Sfax, Sfax 3064, Tunisia;
| | - Tarek Rebai
- Laboratory of Histo-Embryology and Cytogenetics, Medicine Faculty of Sfax, University of Sfax, Sfax 3029, Tunisia; (F.R.); (T.R.)
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