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Liang Y, Kaushal D, Wilson RB. Cellular Senescence and Extracellular Vesicles in the Pathogenesis and Treatment of Obesity-A Narrative Review. Int J Mol Sci 2024; 25:7943. [PMID: 39063184 PMCID: PMC11276987 DOI: 10.3390/ijms25147943] [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: 05/30/2024] [Revised: 07/04/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
This narrative review explores the pathophysiology of obesity, cellular senescence, and exosome release. When exposed to excessive nutrients, adipocytes develop mitochondrial dysfunction and generate reactive oxygen species with DNA damage. This triggers adipocyte hypertrophy and hypoxia, inhibition of adiponectin secretion and adipogenesis, increased endoplasmic reticulum stress and maladaptive unfolded protein response, metaflammation, and polarization of macrophages. Such feed-forward cycles are not resolved by antioxidant systems, heat shock response pathways, or DNA repair mechanisms, resulting in transmissible cellular senescence via autocrine, paracrine, and endocrine signaling. Senescence can thus affect preadipocytes, mature adipocytes, tissue macrophages and lymphocytes, hepatocytes, vascular endothelium, pancreatic β cells, myocytes, hypothalamic nuclei, and renal podocytes. The senescence-associated secretory phenotype is closely related to visceral adipose tissue expansion and metaflammation; inhibition of SIRT-1, adiponectin, and autophagy; and increased release of exosomes, exosomal micro-RNAs, pro-inflammatory adipokines, and saturated free fatty acids. The resulting hypernefemia, insulin resistance, and diminished fatty acid β-oxidation lead to lipotoxicity and progressive obesity, metabolic syndrome, and physical and cognitive functional decline. Weight cycling is related to continuing immunosenescence and exposure to palmitate. Cellular senescence, exosome release, and the transmissible senescence-associated secretory phenotype contribute to obesity and metabolic syndrome. Targeted therapies have interrelated and synergistic effects on cellular senescence, obesity, and premature aging.
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Affiliation(s)
- Yicong Liang
- Bankstown Hospital, University of New South Wales, Sydney, NSW 2560, Australia;
| | - Devesh Kaushal
- Campbelltown Hospital, Western Sydney University, Sydney, NSW 2560, Australia;
| | - Robert Beaumont Wilson
- School of Clinical Medicine, University of New South Wales, High St., Kensington, Sydney, NSW 2052, Australia
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2
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Zhang H, Li L, Zhang Z, Gao S, Yang M, Ma W, Li H, Zhao W, Yang H, Zhang Y, Zhao S. Pyroptotic macrophages promote proliferation and chemotherapy resistance of peripheral T-cell lymphoma via TLR4 signaling pathway. Cancer Sci 2024; 115:2444-2460. [PMID: 38613253 PMCID: PMC11247557 DOI: 10.1111/cas.16180] [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: 12/06/2023] [Revised: 02/28/2024] [Accepted: 03/30/2024] [Indexed: 04/14/2024] Open
Abstract
Peripheral T-cell lymphoma (PTCL) is a highly aggressive type of non-Hodgkin's lymphoma with a poor prognosis. Pyroptosis is a newly discovered procedural cell death mode, which has been implicated to occur in both tumor cells and immune cells. However, the occurrence and effect of pyroptosis on PTCL remain unclear. Here, we found that pyroptosis occurred in interstitial macrophages of PTCL rather than in tumor cells. In clinical specimens, macrophage pyroptosis was associated with a poor prognosis of PTCL. In vitro experiments and gene sequencing results showed that pyroptotic macrophages could upregulate the expression of TLR4 through secreting inflammatory cytokines IL-18. Upregulated TLR4 activated its downstream NF-κB anti-apoptotic signaling pathway, thus leading to malignant proliferation and chemotherapy resistance of tumor cells. Moreover, the expression of factors such as XIAP in the NF-κB anti-apoptotic pathway was downregulated after the knockdown of TLR4, and the malignant promotion effect of pyroptotic macrophages on PTCL cells was also reversed. Our findings revealed the mechanism of pyroptotic macrophages promoting the malignant biological behavior of PTCL and elucidated the key role of TLR4 in this process. In-depth analysis of this mechanism will contribute to understanding the regulatory effect of PTCL by the tumor microenvironment and providing new ideas for the clinical treatment of PTCL.
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MESH Headings
- Toll-Like Receptor 4/metabolism
- Toll-Like Receptor 4/genetics
- Humans
- Signal Transduction
- Macrophages/metabolism
- Macrophages/immunology
- Cell Proliferation
- Drug Resistance, Neoplasm/genetics
- Pyroptosis/drug effects
- Cell Line, Tumor
- Lymphoma, T-Cell, Peripheral/metabolism
- Lymphoma, T-Cell, Peripheral/drug therapy
- Lymphoma, T-Cell, Peripheral/pathology
- Lymphoma, T-Cell, Peripheral/genetics
- Male
- NF-kappa B/metabolism
- Female
- Animals
- Mice
- Prognosis
- Middle Aged
- Interleukin-18/metabolism
- Interleukin-18/genetics
- Apoptosis/drug effects
- Gene Expression Regulation, Neoplastic
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Affiliation(s)
- Han Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Liru Li
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Zijian Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Shiqi Gao
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Mingzhe Yang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Wenjie Ma
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Hongbin Li
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Wenhui Zhao
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Huike Yang
- Department of Anatomy, Harbin Medical University, Harbin, China
| | - Yue Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
| | - Shu Zhao
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, China
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Pei M, Deng K, Chen Y. Role and mechanism of endoplasmic reticulum stress and NLRP3 inflammasome in acute kidney injury. ZHONG NAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF CENTRAL SOUTH UNIVERSITY. MEDICAL SCIENCES 2024; 49:367-376. [PMID: 38970510 PMCID: PMC11208395 DOI: 10.11817/j.issn.1672-7347.2024.230301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Indexed: 07/08/2024]
Abstract
Acute kidney injury (AKI) is a common critical condition in clinical practice, characterized by a rapid decline in renal function within a short period. The pathogenesis of AKI is complex and has not been fully elucidated. In recent years, studies have found that the activation of endoplasmic reticulum stress (ERS) and the Nod-like receptor family pyrin domain containing 3 (NLRP3) inflammasome are closely related to the occurrence of AKI. When the kidneys is damaged, the internal environment of the kidney cells is disrupted, leading to the activation of ERS. Excessive ERS can induce apoptosis of renal cells, leading to the occurrence of AKI. Additionally, the NLRP3 inflammasome can mediate the recognition of endogenous and exogenous danger signal molecules by the host, subsequently activating caspase-1, pro-inflammatory cytokines such as IL-1β and IL-18, inducing inflammatory responses, and promoting apoptosis of renal cells. In animal models of AKI, the upregulation of ERS markers is often accompanied by increased expression levels of NLRP3 inflammasome-related proteins, indicating that ERS can regulate the activation process of the NLRP3 inflammasome. Clarifying the role and mechanism of ERS and NLRP3 inflammasome in AKI is expected to provide new insights for the prevention and treatment of AKI.
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Affiliation(s)
- Mingxin Pei
- Department of Pathophysiology, Zhuhai Campus of Zunyi Medical University, Zhuhai Guangdong 519041, China.
| | - Ke Deng
- Department of Pathophysiology, Zhuhai Campus of Zunyi Medical University, Zhuhai Guangdong 519041, China.
| | - Yanling Chen
- Department of Pathophysiology, Zhuhai Campus of Zunyi Medical University, Zhuhai Guangdong 519041, China. ,
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Zhou K, Li N, Qi J, Tu P, Yang Y, Duan H. Diagnostic and prognostic potential of long non-coding RNA NORAD in patients with acute deep vein thrombosis and its role in endothelial cell function. Thromb J 2024; 22:3. [PMID: 38167080 PMCID: PMC10763087 DOI: 10.1186/s12959-023-00575-3] [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: 09/12/2023] [Accepted: 12/25/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Deep venous thrombosis (DVT) is the common clinical cardiovascular disease, and easily develops into post-thrombotic syndrome (PTS). The study aimed to examine the clinical value of long non-coding RNA NORAD gene in the development of DVT and PTS. In vitro, the underlying mechanism was explored. METHODS Serum levels of lncRNA NORAD gene in 85 DVT cases and 85 healthy individuals were tested. The role of lncRNA NORAD gene in human umbilical vein endothelial cells (HUVECs) proliferation, migration and inflammation was examined. The candidate downstream target gene was predicted via bioinformatic analysis. Gene ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were done for the function annotation and pathway enrichment. RESULTS LncRNA NORAD gene was at high expression in the serum of DVT patients, it can distinguish DVT patients from healthy controls with the area under the curve of 0.919. Elevated expression of lncRNA NORAD gene in PTS patients was detected, DVT cases with high expression of lncRNA NORAD gene were more susceptible to PTS. LncRNA NORAD gene knockdown promoted HUVECs' proliferation, migration while suppressing cell apoptosis and inflammation. MiR-93-5p served as a target of lncRNA NORAD gene, and its overexpression reversed the role of lncRNA NORAD gene in the biological function of HUVECs. The target genes of miR-93-5p were enriched in HIF-1 signaling, TGF-beta signaling and PI3K-Akt signaling, protein-protein interaction (PPI) network indicated STAT3, MAPK1 to be the key targets. CONCLUSIONS Upregulation of expression of lncRNA NORAD gene was a potential diagnostic biomarker for DVT and related to the development of PTS. LncRNA NORAD/miR-93-5p axis was involved in the progress of DVT through regulating endothelial cell function.
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Affiliation(s)
- Kun Zhou
- Department of Breast Thyroid Vascular Surgery, Taihe Hospital, Affiliated Hospital of Hubei University of Medicine, 442000, Shiyan, China
| | - Na Li
- Department of Hematology, Taihe Hospital, Affiliated Hospital of Hubei University of Medicine, 442000, Shiyan, China
| | - Jia Qi
- Department of Ophthalmology, Taihe Hospital, Affiliated Hospital of Hubei University of Medicine, 442000, Shiyan, China
| | - Pingping Tu
- Department of Ophthalmology, Taihe Hospital, Affiliated Hospital of Hubei University of Medicine, 442000, Shiyan, China
| | - Yan Yang
- Department of Breast Thyroid Vascular Surgery, Taihe Hospital, Affiliated Hospital of Hubei University of Medicine, 442000, Shiyan, China
| | - Hui Duan
- Department of Emergency, Taihe Hospital, Affiliated Hospital of Hubei University of Medicine, No.32, Renmin South Road, 442000, Shiyan, Huibei Province, China.
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Chojdak-Łukasiewicz J, Bizoń A, Waliszewska-Prosół M, Piwowar A, Budrewicz S, Pokryszko-Dragan A. Role of Sirtuins in Physiology and Diseases of the Central Nervous System. Biomedicines 2022; 10:2434. [PMID: 36289696 PMCID: PMC9598817 DOI: 10.3390/biomedicines10102434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/18/2022] [Accepted: 09/23/2022] [Indexed: 07/30/2023] Open
Abstract
Silent information regulators, sirtuins (SIRTs), are a family of enzymes which take part in major posttranslational modifications of proteins and contribute to multiple cellular processes, including metabolic and energetic transformations, as well as regulation of the cell cycle. Recently, SIRTs have gained increased attention as the object of research because of their multidirectional activity and possible role in the complex pathomechanisms underlying human diseases. The aim of this study was to review a current literature evidence of SIRTs' role in the physiology and pathology of the central nervous system (CNS). SIRTs have been demonstrated to be crucial players in the crosstalk between neuroinflammation, neurodegeneration, and metabolic alterations. The elucidation of SIRTs' role in the background of various CNS diseases offers a chance to define relevant markers of their progression and promising candidates for novel therapeutic targets. Possible diagnostic and therapeutic implications from SIRTs-related investigations are discussed, as well as their future directions and associated challenges.
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Affiliation(s)
| | - Anna Bizoń
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | | | - Agnieszka Piwowar
- Department of Toxicology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
| | - Sławomir Budrewicz
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Anna Pokryszko-Dragan
- Department of Neurology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
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Kim JK, Silwal P, Jo EK. Sirtuin 1 in Host Defense during Infection. Cells 2022; 11:cells11182921. [PMID: 36139497 PMCID: PMC9496836 DOI: 10.3390/cells11182921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Sirtuins (SIRTs) are members of the class III histone deacetylase family and epigenetically control multiple target genes to modulate diverse biological responses in cells. Among the SIRTs, SIRT1 is the most well-studied, with a role in the modulation of immune and inflammatory responses following infection. The functions of SIRT1 include orchestrating immune, inflammatory, metabolic, and autophagic responses, all of which are required in establishing and controlling host defenses during infection. In this review, we summarize recent information on the roles of SIRT1 and its regulatory mechanisms during bacterial, viral, and parasitic infections. We also discuss several SIRT1 modulators, as potential antimicrobial treatments. Understanding the function of SIRT1 in balancing immune homeostasis will contribute to the development of new therapeutics for the treatment of infection and inflammatory disease.
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Affiliation(s)
- Jin Kyung Kim
- Department of Microbiology, Keimyung University School of Medicine, Daegu 42601, Korea
| | - Prashanta Silwal
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Eun-Kyeong Jo
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea
- Correspondence:
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Kubicki T, Bednarek K, Kostrzewska-Poczekaj M, Luczak M, Lewandowski K, Gil L, Jarmuz-Szymczak M, Dytfeld D. Bortezomib- and carfilzomib-resistant myeloma cells show increased activity of all three arms of the unfolded protein response. Am J Cancer Res 2022; 12:3280-3293. [PMID: 35968359 PMCID: PMC9360248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/25/2022] [Indexed: 06/15/2023] Open
Abstract
Proteasome inhibitors are among the most potent classes of drugs in multiple myeloma treatment. One of the main challenges in myeloma therapy is acquired resistance to drugs. Several theories have been proposed to describe the mechanisms responsible for resistance to the most commonly used proteasome inhibitors bortezomib and carfilzomib. This study aimed to describe functional differences between sensitive myeloma cells (MM1S WT) and their daughter cell lines resistant to either bortezomib (MM1S/R BTZ) or carfilzomib (MM1S/R CFZ), as well as between both resistant cell lines. Bortezomib- and carfilzomib-resistant cell lines were successfully generated by continuous exposure to the drugs. When exposed to different drugs than during the resistance generation period, MM1S/R BTZ cells showed cross-resistance to carfilzomib, whereas MM1S/R CFZ cells were similarly sensitive to bortezomib as MM1S WT cells. Following proteomic profiling, unsupervised principal component analysis revealed that the MM1S/R BTZ and MM1S/R CFZ cell lines differed significantly from the MM1S WT cell line and from each other. Canonical pathway analysis showed similar pathways enriched in both comparisons - MM1S WT vs. MM1S/R CFZ and MM1S WT vs. MM1S/R BTZ. However, important differences were present in the statistical significance of particular pathways. Key alterations included the ubiquitin-proteasome system, metabolic pathways responsible for redox homeostasis and the unfolded protein response. In functional studies, both drugs continued to reduce chymotrypsin-like proteasome activity in resistant cells. However, the baseline activity of all three catalytic domains of the proteasome was higher in the resistant cells. Differences in generation of reactive oxygen species were identified in MM1S/R BTZ (decreased) and MM1S/CFZ cells (increased) in comparison to MM1S WT cells. Both baseline and drug-induced activity of the unfolded protein response were higher in resistant cells than in MM1S WT cells and included all three arms of this pathway: IRE1α/XBP1s, ATF6 and EIF2α/ATF4 (downstream effectors of PERK). In conclusion, contrary to some previous reports, resistant MM1S cells show upregulation of unfolded protein response activity, reflecting the heterogeneity of multiple myeloma and prompting further studies on the role of this pathway in resistance to proteasome inhibitors.
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Affiliation(s)
- Tadeusz Kubicki
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical SciencesPoznan, Poland
| | - Kinga Bednarek
- Institute of Human Genetics, Polish Academy of SciencesPoznan, Poland
| | | | - Magdalena Luczak
- Institute of Bioorganic Chemistry, Polish Academy of SciencesPoznan, Poland
| | - Krzysztof Lewandowski
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical SciencesPoznan, Poland
| | - Lidia Gil
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical SciencesPoznan, Poland
| | - Malgorzata Jarmuz-Szymczak
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical SciencesPoznan, Poland
- Institute of Human Genetics, Polish Academy of SciencesPoznan, Poland
| | - Dominik Dytfeld
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical SciencesPoznan, Poland
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NLRP3 Inflammasome in Vascular Disease: A Recurrent Villain to Combat Pharmacologically. Antioxidants (Basel) 2022; 11:antiox11020269. [PMID: 35204152 PMCID: PMC8868353 DOI: 10.3390/antiox11020269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 02/07/2023] Open
Abstract
Despite the great advances in medicine, mortality from cardiovascular diseases keeps on growing. This tendency is not likely to change considering the pandemic proportions of obesity and diabetes. Besides, the global population is more aged as life expectancy increases, and vascular aging plays a key role in the increased risk of vascular disease. In light of recent trials, namely the CANTOS study, showing the enormous potential of anti-inflammatory therapies and in particular those targeted to IL-1β, a change in therapeutical management of cardiovascular diseases is coming about. The NLRP3 inflammasome is a multiprotein complex that assembles to engage the innate immune defense by processing the maturation of pro-inflammatory cytokines IL-1β and IL-18. Substantial evidence has positioned the NLRP3 inflammasome at the center of vascular disease progression, with a particular significance in the context of aging and the low-grade chronic inflammation associated (inflammaging). Therefore, pharmacological blockade of the NLRP3 inflammasome and its end products has arisen as an extremely promising tool to battle vascular disease. In this review, we discuss the mechanisms by which the NLRP3 inflammasome contributes to vascular disease, with particular attention to the consequences of aging, and we enumerate the therapeutic options available to combat this recurrent villain.
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