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Lai X, Chen T. Association between the triglyceride-glucose index and serum soluble Klotho in middle-aged and older adults from NHANES 2007-2016. Sci Rep 2024; 14:18408. [PMID: 39117772 PMCID: PMC11310314 DOI: 10.1038/s41598-024-69226-5] [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: 06/16/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024] Open
Abstract
Klotho, an anti-aging protein, is believed to participate in metabolic diseases and play a potential protective role by regulating insulin sensitivity. This study aimed to explore the relationship between the triglyceride-glucose (TyG) index (a simple marker of insulin resistance) and serum soluble Klotho (S-Klotho) levels. The cross-sectional study comprised 5237 adults aged 40-79 years who participated in the National Health and Nutrition Examination Surveys (NHANES) 2007-2016. The TyG index was calculated as ln [fasting triglycerides (mg/dL) × fasting glucose (mg/dL)/2]. The serum levels of S-Klotho were measured by enzyme-linked immunosorbent assay. The association between the TyG index and S-Klotho levels was investigated by multiple linear regression models, smoothed curve fitting, segmented linear regression models, subgroup analyses, and interaction tests. The TyG index was inversely associated with serum S-Klotho level after full adjustment (β = - 45.11, 95% CI (- 79.53, - 10.69), P = 0.011). Furthermore, we also found a non-linear correlation and saturation phenomenon between the TyG index and serum S-Klotho levels, with a turning point of 9.56. In addition, a significant interaction effect of sex was found between the two (P for interaction < 0.001), with a more pronounced association observed in females. Further studies are required to explore the mechanisms and verify the correlation.
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Affiliation(s)
- Xiaoli Lai
- Department of Endocrinology and Metabolism, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, 364000, China
- The Third Clinical Medical College of Fujian Medical University, Fujian Medical University, Longyan, 364000, China
| | - Tao Chen
- Department of Endocrinology and Metabolism, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, 364000, China.
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Eslam-Aghdam T, Hassanpour S, Zendehdel M. Role of the intracerebroventricular injection α- klotho on food intake in broiler chicken: a novel study. Poult Sci 2024; 103:104166. [PMID: 39214054 DOI: 10.1016/j.psj.2024.104166] [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: 04/24/2024] [Revised: 07/30/2024] [Accepted: 07/30/2024] [Indexed: 09/04/2024] Open
Abstract
This novel study investigated the effects of intracerebroventricular (ICV) injection α- klotho and its interaction with neuropeptide Y (NPY) receptors on food intake in broiler chicken. This study included 4 experiments with 4 groups in each with 11 replicates per group. Birds were feed deprived 3 h prior injection, following injection returned to their cage and food provided. In experiment 1, group 1 received ICV injection of the saline and groups 2 to 4 received ICV injection of the α-klotho (1, 2, and 4 µg), respectively. In experiment 2, chicken received ICV injection of the saline, B5063 (NPY1 receptor antagonist, 1.25 µg), α-klotho (4 µg) and co-injection of the B5063 + α-klotho. In experiments 3 and 4, SF22 (NPY2 receptor antagonist, 1.25 µg), and SML0891 (NPY5 receptor antagonist, 1.25 µg) were injected instead of the B5063. Then consumed food was measured at 30, 60, and 120 min post the injection. Based on results, ICV injection of the α-klotho (2 and 4 µg) significantly decreased food intake (P < 0.05). Co-injection of the B5063 + α-klotho significantly amplified hypophagic effect of the α-klotho (P < 0.05). α-klotho-induced hypophagia was not influenced by SF22 or SML0891. These results suggest that α-klotho-induced hypophagia is mediated via NPY1 receptors in broiler chicken.
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Affiliation(s)
- Tahereh Eslam-Aghdam
- Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shahin Hassanpour
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Morteza Zendehdel
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, 14155-6453, Tehran, Iran
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Liu S, Zhu Z, Yu K, Zhang W, Pu J, Lv Y, Tang Z, Liu F, Sun Y. U-shaped association between serum Klotho and all-cause mortality in US cardiovascular patients: a prospective cohort study. Front Endocrinol (Lausanne) 2024; 15:1405665. [PMID: 38948524 PMCID: PMC11212453 DOI: 10.3389/fendo.2024.1405665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 05/31/2024] [Indexed: 07/02/2024] Open
Abstract
Background Increased levels of serum Klotho have been associated with a reduced risk of several cardiovascular diseases (CVD). However, limited studies exist on the association between serum Klotho and mortality in patients with CVD. Methods We collected data from CVD patients in the National Health and Nutrition Examination Survey (NHANES) spanning 2007 to 2016. We linked NHANES data with the National Death Index to determine the survival status of participants. Univariate and multivariable Cox regression models were used to investigate the relationship between serum Klotho levels and mortality in CVD patients. The relationship between serum Klotho quartiles and mortality in CVD patients was visualized using Kaplan-Meier (KM) curves and restricted cubic spine. Finally, subgroup analyses were used to examine the association between serum Klotho and all-cause mortality in different populations. Results 1905 patients with CVD were finally enrolled in our study with a mean follow-up of 7.1 years. The average age of the participants was 63.4 years, with 58.40% being male. KM showed that lower Klotho levels were associated with lower survival rates. After adjusting for potential confounders, patients with higher serum Klotho levels had lower all-cause mortality (Q1: 1.00, Q2: 0.58 (0.42-0.80), Q3: 0.69 (0.47-1.01), and Q4:0.64 (0.45-0.92). However, the relationship between serum Klotho levels and cardiovascular mortality was not statistically significant. Dose-response analysis shows a U-shaped relationship between serum Klotho levels and all-cause mortality in patients with CVD (P nonlinear=0.002). Subgroup analysis indicated that participants with a history of hypertension had a higher risk of all-cause mortality in serum Klotho Q4 compared to Q1 (P trend <0.05). Conclusion The relationship between serum Klotho levels and all-cause mortality in CVD patients exhibits a U-shaped association. The underlying mechanisms of this association need further investigation.
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Affiliation(s)
- Shasha Liu
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Zhanfang Zhu
- Department of Internal Medicine, Xi’an Jiaotong University Hospital, Xi’an, China
| | - Kai Yu
- Department of Cardiology, Pucheng County Hospital, Weinan, China
| | - Wei Zhang
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Jie Pu
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Ying Lv
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Zhiguo Tang
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Fuqiang Liu
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
| | - Yongqiang Sun
- Department of Cardiology, Shaanxi Provincial People’s Hospital, Xi’an, China
- Department of Interventional Radiography, Shanxi Provincial People’s Hospital, Xi’an, China
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Almohaimeed GM, Alonazi AS, Bin Dayel AF, Alshammari TK, Alghibiwi HK, Alamin MA, Almotairi AR, Alrasheed NM. Interplay between Senescence and Macrophages in Diabetic Cardiomyopathy: A Review of the Potential Role of GDF-15 and Klotho. Biomedicines 2024; 12:759. [PMID: 38672115 PMCID: PMC11048311 DOI: 10.3390/biomedicines12040759] [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: 02/24/2024] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a critical health problem, with 700 million diagnoses expected worldwide by 2045. Uncontrolled high blood glucose levels can lead to serious complications, including diabetic cardiomyopathy (DCM). Diabetes induces cardiovascular aging and inflammation, increasing cardiomyopathy risk. DCM is characterized by structural and functional abnormalities in the heart. Growing evidence suggests that cellular senescence and macrophage-mediated inflammation participate in the pathogenesis and progression of DCM. Evidence indicates that growth differentiation factor-15 (GDF-15), a protein that belongs to the transforming growth factor-beta (TGF-β) superfamily, is associated with age-related diseases and exerts an anti-inflammatory role in various disease models. Although further evidence suggests that GDF-15 can preserve Klotho, a transmembrane antiaging protein, emerging research has elucidated the potential involvement of GDF-15 and Klotho in the interplay between macrophages-induced inflammation and cellular senescence in the context of DCM. This review explores the intricate relationship between senescence and macrophages in DCM while highlighting the possible contributions of GDF-15 and Klotho.
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Affiliation(s)
- Ghada M. Almohaimeed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
| | - Asma S. Alonazi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
| | - Anfal F. Bin Dayel
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
| | - Tahani K. Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
| | - Hanan K. Alghibiwi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
| | - Maha A. Alamin
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
| | - Ahmad R. Almotairi
- Department of Pathology, College of Medicine, King Saud University, Riyadh 11461, Saudi Arabia;
| | - Nouf M. Alrasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (G.M.A.); (A.S.A.); (A.F.B.D.); (T.K.A.); (H.K.A.); (M.A.A.)
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Balogh DB, Molnar A, Degi A, Toth A, Lenart L, Saeed A, Barczi A, Szabo AJ, Wagner LJ, Reusz G, Fekete A. Cardioprotective and Antifibrotic Effects of Low-Dose Renin-Angiotensin-Aldosterone System Inhibitors in Type 1 Diabetic Rat Model. Int J Mol Sci 2023; 24:17043. [PMID: 38069366 PMCID: PMC10707380 DOI: 10.3390/ijms242317043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Diabetic cardiovascular complications are associated with up to 50% mortality, and current therapies are not effective enough. Renin-angiotensin-aldosterone system inhibitors (RAASis) are the standard of care for diabetic patients with hypertension and albuminuria. Based on our previous studies reporting the renoprotective effects of low-dose RAASis, here, we hypothesized that low-dose RAASi treatment has cardioprotective and antifibrotic benefits in type 1 diabetes mellitus (T1DM). After five weeks of T1DM, adult male Wistar rats received low doses of ramipril, losartan, or eplerenone for two weeks. Heart rate, blood pressure, and pulse wave velocity (PWV) were recorded. Aortic intima-media thickness (IMT), collagen accumulation, and myocardial fibrosis were assessed. All RAASis reduced PWV elevation, prevented the progression of myocardial fibrosis, and normalized B-type natriuretic peptide, troponin I, and fibroblast growth factor 23 levels without affecting blood pressure. Interestingly, only eplerenone reversed the decline in Klotho levels and reduced IMT and fibrosis in the media of the aorta. Our comparative analysis suggests that mineralocorticoid receptor antagonists, particularly eplerenone, may offer superior efficacy in halting both the arterial and the myocardial injuries in T1DM compared to angiotensin-converting enzyme inhibitors or angiotensin II type 1 receptor blockers.
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Affiliation(s)
- Dora B. Balogh
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Agnes Molnar
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Arianna Degi
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Akos Toth
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Lilla Lenart
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Adar Saeed
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Adrienn Barczi
- Medical Imaging Center, Semmelweis University, 1082 Budapest, Hungary;
| | - Attila J. Szabo
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Laszlo J. Wagner
- Department of Surgery, Transplantation and Gastroenterology, Semmelweis University, 1082 Budapest, Hungary;
| | - Gyorgy Reusz
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Andrea Fekete
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
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Ramalingam V. NLRP3 inhibitors: Unleashing their therapeutic potential against inflammatory diseases. Biochem Pharmacol 2023; 218:115915. [PMID: 37949323 DOI: 10.1016/j.bcp.2023.115915] [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: 07/23/2023] [Revised: 11/04/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023]
Abstract
The NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome has been linked to the release of pro-inflammatory cytokines and is essential for innate defence against infection and danger signals. These secreted cytokines improve the inflammatory response caused by tissue damage and associated inflammation. Consequently, the development of NLRP3 inflammasome inhibitors are viable option for the treatment of diverse inflammatory disorders. The significant anti-inflammatory effects of the NLRP3 inhibitors have severe side effects. Hence, the application of NLRP3 inhibitors against inflammatory disease has not yet been understood and most of the developed inhibitors are unsuccessful in clinical trials. The processes behind the NLRP3 complex, priming, and activation are the main emphasis of this review, which also covers therapeutical inhibitors of the NLRP3 inflammasome and potential therapeutic strategies for directing the NLRP3 inflammasome towards clinical development.
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Affiliation(s)
- Vaikundamoorthy Ramalingam
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Liu Y, Chen M. Emerging role of α-Klotho in energy metabolism and cardiometabolic diseases. Diabetes Metab Syndr 2023; 17:102854. [PMID: 37722166 DOI: 10.1016/j.dsx.2023.102854] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/16/2023] [Accepted: 09/08/2023] [Indexed: 09/20/2023]
Abstract
BACKGROUND AND AIM Klotho was first identified as a gene associated with aging and longevity in 1997. α-Klotho is an anti-aging protein and its role in energy metabolism, various cardiovascular diseases (CVDs), and metabolic disorders is increasingly being recognized. In this review, we aimed to outline the potential protective role and therapeutic prospects of α-Klotho in energy metabolism and cardiometabolic diseases (CMDs). METHODS We comprehensively reviewed the relevant literature in PubMed using the keywords 'Klotho', 'metabolism', 'cardiovascular', 'diabetes', 'obesity', 'metabolic syndrome', and 'nonalcoholic fatty liver disease'. RESULTS α-Klotho can be divided into membrane-bound Klotho, secreted Klotho, and the most studied circulating soluble Klotho that can act as a hormone. Klotho gene polymorphisms have been implicated in energy metabolism and CMDs. α-Klotho can inhibit insulin/insulin growth factor-1 signaling and its overexpression can lead to a 'healthy insulin resistance' and may exert beneficial effects on the regulation of glycolipid metabolism and central energy homeostasis. α-Klotho, mainly serum Klotho, has been revealed to be protective against CVDs, diabetes and its complications, obesity, and nonalcoholic fatty liver disease. Human recombinant Klotho protein/Klotho gene delivery, multiple drugs, or natural products, and exercise can increase α-Klotho expression. CONCLUSION Overall, α-Klotho has demonstrated its potential as a promising target for modulating energy metabolism and CMDs, and further research is needed to explore its utilization in clinical practice in the future.
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Affiliation(s)
- Yuanbin Liu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, No. 99 Zhang Zhidong Road, Wuhan, Hubei, 430000, PR China
| | - Mingkai Chen
- Department of Gastroenterology, Renmin Hospital of Wuhan University, No. 99 Zhang Zhidong Road, Wuhan, Hubei, 430000, PR China.
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Zeng Y, Xu G, Feng C, Cai D, Wu S, Liu Y, Chen Y, Ma W. Klotho inhibits the activation of NLRP3 inflammasome to alleviate lipopolysaccharide-induced inflammatory injury in A549 cells and restore mitochondrial function through SIRT1/Nrf2 signaling pathway. CHINESE J PHYSIOL 2023; 66:335-344. [PMID: 37929344 DOI: 10.4103/cjop.cjop-d-23-00029] [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] [Indexed: 11/07/2023] Open
Abstract
Acute lung injury is a severe clinical condition constituting a major cause of mortality in intensive care units. This study aimed to investigate the role of klotho in alleviating lipopolysaccharide (LPS)-induced acute lung injury. LPS-induced acute lung injury was used to simulate the acute lung injury caused by severe pneumonia in vitro. The viability and apoptosis of A549 cells were detected by cell counting kit-8 assay and flow cytometry. The inflammatory response, oxidative stress, and mitochondrial function in A549 cells were analyzed by commercial assay kits and 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethyl-benzimidazolyl carbocyanine iodide (JC-1) staining. The expression of apoptosis-related proteins, Sirtuin 1 (SIRT1)/nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway-related proteins, and NOD-like receptor family pyrin domain containing 3 (NLRP3) expression in A549 cells was detected by western blot. The mtDNA synthase level in A549 cells was analyzed by reverse transcription-quantitative polymerase chain reaction. The results showed that, klotho had no cytotoxic effect on A549 cells. The viability and mitochondrial function were inhibited and apoptosis, inflammatory response, and oxidative stress were aggravated in LPS-induced A549 cells, which were all reversed by klotho. Klotho activated the SIRT1/Nrf2 signaling pathway to inhibit the LPS-induced NLRP3 inflammasome activation in A549 cells. However, EX527, a SIRT1 inhibitor, attenuated the klotho effect to suppress viability and mitochondrial function and promoted apoptosis, inflammatory response, and oxidative stress of A549 cells. In conclusion, klotho inhibited the activation of NLRP3 inflammasome to alleviate LPS-induced inflammatory injury of A549 cells and restore mitochondrial function through activating the SIRT1/Nrf2 signaling pathway.
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Affiliation(s)
- Yanjun Zeng
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Gang Xu
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Congrui Feng
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Danyan Cai
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Sizhi Wu
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Yuanling Liu
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Yuluo Chen
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
| | - Wei Ma
- Department of Geriatric Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
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Xie R, Fan J, Wen J, Jin K, Zhan J, Yuan S, Tang Y, Nie X, Wen Z, Li H, Chen C, Wang DW. LncRNA ZNF593-AS alleviates diabetic cardiomyopathy via suppressing IRF3 signaling pathway. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 32:689-703. [PMID: 37215148 PMCID: PMC10199406 DOI: 10.1016/j.omtn.2023.04.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/28/2023] [Indexed: 05/24/2023]
Abstract
Diabetes could directly induce cardiac injury, leading to cardiomyopathy. However, treatment strategies for diabetic cardiomyopathy remain limited. ZNF593-AS knockout and cardiomyocyte-specific transgenic mice were constructed. In addition, high-fat diet (HFD)-induced diabetic mouse model and db/db mice, another classic diabetic mouse model, were employed. ZNF593-AS was silenced using GapmeR, a modified antisense oligonucleotide, while overexpressed using a recombinant adeno-associated virus serotype 9-mediated gene delivery system. Transcriptome sequencing, RNA pull-down assays, and RNA immunoprecipitation assays were also performed to investigate the underlying mechanisms. ZNF593-AS expression was decreased in diabetic hearts. ZNF593-AS attenuated the palmitic acid-induced apoptosis of cardiomyocytes in vitro. In HFD-induced diabetic mice, ZNF593-AS deletion aggravated cardiac dysfunction and enhanced cardiac apoptosis and inflammation. In contrast, HFD-induced cardiac dysfunction was improved in ZNF593-AS transgenic mice. Consistently, ZNF593-AS exerted the same cardioprotective effects in db/db mice. Mechanistically, ZNF593-AS directly interacted with the functional domain of interferon regulatory factor 3 (IRF3), and suppressed fatty acid-induced phosphorylation and activation of IRF3, contributing to the amelioration of cardiac cell death and inflammation. In conclusion, our results identified the protective role of ZNF593-AS in diabetic cardiomyopathy, suggesting a novel potential therapeutic target.
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Affiliation(s)
- Rong Xie
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiahui Fan
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jianpei Wen
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kunying Jin
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiabing Zhan
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shuai Yuan
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuyan Tang
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiang Nie
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zheng Wen
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huaping Li
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chen Chen
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Dao Wen Wang
- Division of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Huazhong University of Science and Technology, Wuhan 430030, China
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He J, Cui J, Shi Y, Wang T, Xin J, Li Y, Shan X, Zhu Z, Gao Y. Astragaloside IV Attenuates High-Glucose-Induced Impairment in Diabetic Nephropathy by Increasing Klotho Expression via the NF- κB/NLRP3 Axis. J Diabetes Res 2023; 2023:7423661. [PMID: 37261217 PMCID: PMC10228232 DOI: 10.1155/2023/7423661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 03/20/2023] [Accepted: 03/31/2023] [Indexed: 06/02/2023] Open
Abstract
Objective Deficiencies in klotho are implicated in various kidney dysfunctions including diabetic nephropathy (DN) related to inflammatory responses. Klotho is closely related to inflammatory responses and is a potential target for ameliorating kidney failure. Pyroptosis, an inflammatory form of programmed cell death, is reported to take part in DN pathogenesis recently. This study is aimed at exploring whether and how klotho inhibited podocyte pyroptosis and whether astragaloside IV (AS-IV) protect podocyte through the regulation of klotho. Materials and Methods SD rat model of DN and conditionally immortalized mouse podocytes exposed to high glucose were treated with AS-IV. Biochemical assays and morphological examination, cell viability assay, cell transfection, phalloidin staining, ELISA, LDH release assay, SOD and MDA detection, MMP assay, ROS level detection, flow cytometry analysis, TUNEL staining assay, PI/Hoechst 33342 staining, immunofluorescence assay, and western blot were performed to elucidate podocyte pyroptosis and to observe the renal morphology. Results The treatment of AS-IV can improve renal function and protect podocytes exposed to high glucose. Klotho was decreased, and AS-IV increased klotho levels in serum and kidney tissue of DN rats as well as podocytes exposed to high glucose. AS-IV can inhibit DN glomeruli pyroptosis in vivo. In vitro, overexpressed klotho and treatment with AS-IV inhibited pyroptosis of podocytes cultured in high glucose. Klotho knockdown promoted podocyte pyroptosis, and treatment with AS-IV reversed this effect. Furthermore, the overexpression of klotho and AS-IV reduces oxidative stress levels and inhibited NF-κB activation and NLRP3-mediated podocytes' pyroptosis which was abolished by klotho knockdown. In addition, both the ROS inhibitor NAC and the NF-κB pathway inhibitor PDTC can inhibit NLRP3 inflammasome activation. NLRP3 inhibitor MCC950 can inhibit pyroptosis of podocytes exposed to high glucose. Conclusion Altogether, our results demonstrate that the protective effect of AS-IV in upregulating klotho expression in diabetes-induced podocyte injury is associated with the inhibition of NLRP3-mediated pyroptosis via the NF-κB signaling pathway.
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Affiliation(s)
- Jiaxin He
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Jialin Cui
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Yimin Shi
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Tao Wang
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Junyan Xin
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Yimeng Li
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Xiaomeng Shan
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Zhiyao Zhu
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
| | - Yanbin Gao
- Department of Endocrinology, School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- Department of Endocrinology, Beijing Key Laboratory of Traditional Chinese Medicine Collateral Disease Theory Research, Beijing, China
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11
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Kaszubowska L, Foerster J, Kaczor JJ, Karnia MJ, Kmieć Z. Anti-Inflammatory Klotho Protein Serum Concentration Correlates with Interferon Gamma Expression Related to the Cellular Activity of Both NKT-like and T Cells in the Process of Human Aging. Int J Mol Sci 2023; 24:ijms24098393. [PMID: 37176100 PMCID: PMC10179552 DOI: 10.3390/ijms24098393] [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: 03/19/2023] [Revised: 04/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Klotho is a beta-glucuronidase that reveals both anti-inflammatory and anti-oxidative properties that have been associated with mechanisms of aging. The study aimed to analyze the relationships between the serum concentration of soluble α-Klotho and cellular activity of two populations of lymphocytes; T and NKT-like cells corresponding to the level of cytokine secretion; i.e., IFN-γ, TNF-α, and IL-6. The studied population comprised three age groups: young individuals ('young'), seniors aged under 85 ('old'), and seniors aged over 85 ('oldest'). Both NKT-like and T cells were either non-cultured or cultured for 48 h and stimulated appropriately with IL-2, LPS or PMA with ionomycin to compare with unstimulated control cells. In all studied age groups non-cultured or cultured NKT-like cells revealed higher expressions of TNF-α, IL-6, and IFN-γ than T cells. α-Klotho concentration in serum decreased significantly in the process of aging. Intriguingly, only IFN-γ expression revealed a positive correlation with α-Klotho protein serum concentration in both non-cultured and cultured T and NKT-like cells. Since IFN-γ is engaged in the maintenance of immune homeostasis, the observed relationships may indicate the involvement of α-Klotho and cellular IFN-γ expression in the network of adaptive mechanisms developed during the process of human aging.
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Affiliation(s)
- Lucyna Kaszubowska
- Department of Histology, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
| | - Jerzy Foerster
- Department of Social and Clinical Gerontology, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
| | - Jan Jacek Kaczor
- Department of Animal and Human Physiology, University of Gdańsk, J. Bażyńskiego 8 Street, 80-308 Gdańsk, Poland
| | - Mateusz Jakub Karnia
- Department of Animal and Human Physiology, University of Gdańsk, J. Bażyńskiego 8 Street, 80-308 Gdańsk, Poland
| | - Zbigniew Kmieć
- Department of Histology, Medical University of Gdańsk, Dębinki 1, 80-211 Gdańsk, Poland
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12
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Martinelli RP, Rayego-Mateos S, Alique M, Márquez-Expósito L, Tejedor-Santamaria L, Ortiz A, González-Parra E, Ruiz-Ortega M. Vitamin D, Cellular Senescence and Chronic Kidney Diseases: What Is Missing in the Equation? Nutrients 2023; 15:1349. [PMID: 36986078 PMCID: PMC10056834 DOI: 10.3390/nu15061349] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/12/2023] Open
Abstract
As life expectancy increases in many countries, the prevalence of age-related diseases also rises. Among these conditions, chronic kidney disease is predicted to become the second cause of death in some countries before the end of the century. An important problem with kidney diseases is the lack of biomarkers to detect early damage or to predict the progression to renal failure. In addition, current treatments only retard kidney disease progression, and better tools are needed. Preclinical research has shown the involvement of the activation of cellular senescence-related mechanisms in natural aging and kidney injury. Intensive research is searching for novel treatments for kidney diseases as well as for anti-aging therapies. In this sense, many experimental shreds of evidence support that treatment with vitamin D or its analogs can exert pleiotropic protective effects in kidney injury. Moreover, vitamin D deficiency has been described in patients with kidney diseases. Here, we review recent evidence about the relationship between vitamin D and kidney diseases, explaining the underlying mechanisms of the effect of vitamin D actions, with particular attention to the modulation of cellular senescence mechanisms.
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Affiliation(s)
- Romina P. Martinelli
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma, 28040 Madrid, Spain
| | - Sandra Rayego-Mateos
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
| | - Matilde Alique
- Ricors2040, 28029 Madrid, Spain
- Departamento de Biología de Sistemas, Universidad de Alcalá, Alcalá de Henares, 28871 Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), 28034 Madrid, Spain
| | - Laura Márquez-Expósito
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
| | - Lucia Tejedor-Santamaria
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
| | - Alberto Ortiz
- Ricors2040, 28029 Madrid, Spain
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
| | - Emilio González-Parra
- Ricors2040, 28029 Madrid, Spain
- Department of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma, 28040 Madrid, Spain
- Ricors2040, 28029 Madrid, Spain
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13
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Papadopoulos KI, Papadopoulou A, Aw TC. A protective erythropoietin evolutionary landscape, NLRP3 inflammasome regulation, and multisystem inflammatory syndrome in children. Hum Cell 2023; 36:26-40. [PMID: 36310304 PMCID: PMC9618415 DOI: 10.1007/s13577-022-00819-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 10/24/2022] [Indexed: 11/04/2022]
Abstract
The low incidence of pediatric severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection and the associated multisystem inflammatory syndrome (MIS-C) lack a unifying pathophysiological explanation, impeding effective prevention and therapy. Activation of the NACHT, LRR, and PYD domains-containing protein (NLRP) 3 inflammasome in SARS-CoV-2 with perturbed regulation in MIS-C, has been reported. We posit that, early age physiological states and genetic determinants, such as certain polymorphisms of renin-angiotensin aldosterone system (RAAS) molecules, promote a controlled RAAS hyperactive state, and form an evolutionary landscape involving an age-dependent erythropoietin (EPO) elevation, mediating ancestral innate immune defenses that, through appropriate NLRP3 regulation, mitigate tissue injury and pathogen invasion. SARS-CoV-2-induced downregulation of angiotensin-converting enzyme (ACE)2 expression in endothelial cells (EC), impairment of endothelial nitric oxide (NO) synthase (eNOS) activity and downstream NO bioavailability, may promote a hyperactive RAAS with elevated angiotensin II and aldosterone that, can trigger, and accelerate NLRP3 inflammasome activation, while EPO-eNOS/NO abrogate it. Young age and a protective EPO evolutionary landscape may successfully inhibit SARS-CoV-2 and contain NLRP3 inflammasome activation. By contrast, increasing age and falling EPO levels, in genetically susceptible children with adverse genetic variants and co-morbidities, may lead to unopposed RAAS hyperactivity, NLRP3 inflammasome dysregulation, severe endotheliitis with pyroptotic cytokine storm, and development of autoantibodies, as already described in MIS-C. Our haplotype estimates, predicted from allele frequencies in population databases, are in concordance with MIS-C incidence reports in Europeans but indicate lower risks for Asians and African Americans. Targeted Mendelian approaches dissecting the influence of relevant genetic variants are needed.
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Affiliation(s)
- Konstantinos I Papadopoulos
- Department of Research and Development, THAI StemLife Co., Ltd., 566/3 THAI StemLife Bldg., Soi Ramkhamhaeng 39 (Thepleela 1), Prachaouthit Rd., Wangthonglang, 10310, Bangkok, Thailand.
| | - Alexandra Papadopoulou
- Occupational and Environmental Health Services, Feelgood Lund, Ideon Science Park, Scheelevägen 17, 223 63, Lund, Sweden
| | - Tar-Choon Aw
- Department of Laboratory Medicine, Changi General Hospital, Singapore, 529889, Singapore
- Department of Medicine, National University of Singapore, Singapore, 119228, Singapore
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14
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NLRP3 Inflammasome/Pyroptosis: A Key Driving Force in Diabetic Cardiomyopathy. Int J Mol Sci 2022; 23:ijms231810632. [PMID: 36142531 PMCID: PMC9501057 DOI: 10.3390/ijms231810632] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Diabetic cardiomyopathy (DCM), a serious diabetic complication, is a kind of low-grade inflammatory cardiovascular disorder. Due to the high risk of morbidity and mortality, DCM has demanded the attention of medical researchers worldwide. The pathophysiological nature of DCM is intricate, and the genesis and development of which are a consequence of the coaction of many factors. However, the exact pathogenesis mechanism of DCM remains unclear. Pyroptosis is a newly identified programmed cell death (PCD) that is directly related to gasdermin D(GSDMD). It is characterized by pore formation on the cell plasma membrane, the release of inflammatory mediators, and cell lysis. The initiation of pyroptosis is closely correlated with NOD-like receptor 3 (NLRP3) activation, which activates caspase-1 and promotes the cleaving of GSDMD. In addition to adjusting the host’s immune defense, NLRP3 inflammasome/pyroptosis plays a critical role in controlling the systemic inflammatory response. Recent evidence has indicated that NLRP3 inflammasome/pyroptosis has a strong link with DCM. Targeting the activation of NLRP3 inflammasome or pyroptosis may be a hopeful therapeutic strategy for DCM. The focus of this review is to summarize the relevant mechanisms of pyroptosis and the relative contributions in DCM, highlighting the potential therapeutic targets in this field.
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15
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Lao A, Chen Y, Sun Y, Wang T, Lin K, Liu J, Wu J. Transcriptomic analysis provides a new insight: Oleuropein reverses high glucose-induced osteogenic inhibition in bone marrow mesenchymal stem cells via Wnt10b activation. Front Bioeng Biotechnol 2022; 10:990507. [PMID: 36091442 PMCID: PMC9459378 DOI: 10.3389/fbioe.2022.990507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022] Open
Abstract
Adverse events of diabetes mellitus (DM) include bone damages, such as the increased incidence of osteoporosis and bone fractures, which are known as diabetic osteopathy. The pathogenic mechanism of diabetic osteopathy is complex, and hyperglycemia is a vital cause involved in it. Bone marrow mesenchymal stem cells (BMSCs) exert a significant effect on bone formation. Therefore, in this paper, transcriptomic changes of BMSCs cultured in high glucose (35 mM) for 30 days are mainly investigated. In addition, 794 up-regulated genes and 1,162 down-regulated genes were identified. Then, biological functions of the differentially expressed genes in the high glucose microenvironment were investigated by two kinds of functional analyses. Gene Set Enrichment Analysis was also applied to focus on the significant gene sets and it is found that Wnt10b expression witnessed a remarkable decrease in BMSCs under the high glucose microenvironment. At last, in vitro experiments revealed that oleuropein effectively reversed high glucose-induced osteogenic inhibition via activating Wnt10b in BMSCs.
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Affiliation(s)
- An Lao
- Department of Stomatology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu Chen
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yiting Sun
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Tiange Wang
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kaili Lin
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Kaili Lin, ; Jiaqiang Liu, ; Jianyong Wu,
| | - Jiaqiang Liu
- Shanghai Key Laboratory of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Kaili Lin, ; Jiaqiang Liu, ; Jianyong Wu,
| | - Jianyong Wu
- Department of Stomatology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Kaili Lin, ; Jiaqiang Liu, ; Jianyong Wu,
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16
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Klotho expression in peripheral blood circulating cells is associated with vascular and systemic inflammation in atherosclerotic vascular disease. Sci Rep 2022; 12:8422. [PMID: 35590090 PMCID: PMC9120199 DOI: 10.1038/s41598-022-12548-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/04/2022] [Indexed: 12/16/2022] Open
Abstract
Cardiovascular disease is the leading cause of death worldwide. New therapeutic strategies are aimed to modulate the athero-inflammatory process that partially orchestrates underlying vascular damage. Peripheral blood circulating cells include different immune cells with a central role in the development of the atherogenic inflammatory response. The anti-aging protein α-Klotho has been related to protective effects against CVD. KL is expressed in monocytes, macrophages, and lymphocytes where it exerts anti-inflammatory effects. In this work, we analyse the relationships of the levels of inflammatory markers with the expression of the KL gene in PBCCs and with the serum levels of soluble KL in atherosclerotic vascular disease. For this, we conducted a cross-sectional single-center case–control study including a study group of 76 CVD patients and a control group of 16 cadaveric organ donors without medical antecedent or study indicating CVD. Vascular artery fragments and whole blood and serum samples were obtained during elective or organ retrieval surgery. Serum levels of sKL, TNFα and IL10, and gene expression levels of KL, TNF, IL10, NFKB1, DNMT1, and DNMT3A in PBCCs were measured. In these cells, we also determined KL promoter methylation percentage. Histological and immunohistochemical analyses were employed to visualize atherosclerotic lesions and to measure IL10 and TNFα levels in vascular fragments. Patients with CVD presented higher values of proinflammatory markers both at systemic and in the vasculature and in the PBCCs, compared to the control group. In PBCCs, CVD patients also presented lower gene expression levels of KL gene (56.4% difference, P < 0.001), higher gene expression levels of DNMT1 and DNMT3A (P < 0.0001, for both) and a higher methylation status of in the promoter region of KL (34.1 ± 4.1% vs. 14.6 ± 3.4%, P < 0.01). In PBCCs and vasculature, KL gene expression correlated inversely with pro-inflammatory markers and directly with anti-inflammatory markers. sKL serum levels presented similar associations with the expression levels of pro- and anti-inflammatory markers in PBCCs. The differences in KL expression levels in PBCCs and in serum sKL levels with respect to control group was even greater in those CVD patients with macroscopically observable atheromatous plaques. We conclude that promoter methylation-mediated downregulation of KL gene expression in PBCCs is associated with the pro-inflammatory status in atherosclerotic vascular disease.
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Wen X, Li S, Zhang Y, Zhu L, Xi X, Zhang S, Li Y. Recombinant human klotho protects against hydrogen peroxide-mediated injury in human retinal pigment epithelial cells via the PI3K/Akt-Nrf2/HO-1 signaling pathway. Bioengineered 2022; 13:11767-11781. [PMID: 35543385 PMCID: PMC9275962 DOI: 10.1080/21655979.2022.2071023] [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] [Indexed: 11/05/2022] Open
Abstract
Globally, age-related macular degeneration (AMD) is a common irreversible ophthalmopathy. Oxidative stress of retinal pigment epithelial cells is involved in AMD occurrence and development. Klotho is an anti-aging protein with antioxidant properties. We investigated the protective properties of Klotho on hydrogen peroxide (H2O2)-induced injury of retinal pigment epithelial cells (ARPE-19 cells) and its associated pathomechanisms. We found that Klotho pretreatment for 24 h could up-regulate Bcl-2 levels, decrease the cleaved-caspase-3 and Bax levels, inhibit H2O2-induced ARPE-19 cell apoptosis, and promote cell proliferation. Klotho pretreatment inhibited the H2O2-mediated elevations of reactive oxygen species (ROS) in ARPE-19 cells. It enhanced antioxidant activities of the cells and restored the glutathione peroxidase (GPX), superoxide dismutase (SOD2), catalase (CAT), as well as malondialdehyde (MDA) levels to close to the normal level. N-acetylcysteine (NAC), a reactive oxygen scavenger, could reverse the harmful effects of H2O2 on proliferation, apoptosis, and oxidative stress of ARPE-19 cells. Further, Klotho pretreatment enhanced Akt phosphorylation and expression as well as nuclear translocation of Nrf2 in H2O2-treated ARPE-19 cells. This indicates that Klotho protects cells from oxidative stress by activating phosphatidylinositol 3 kinase (PI3K)/protein kinase B (Akt)-nuclear factor E2-related factor 2 (Nrf2)/heme oxygenase 1 (HO-1) signaling pathway. Klotho is, therefore, a potential preventive or treatment option for AMD.
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Affiliation(s)
- Xuewei Wen
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Song Li
- Department of Sport Medicine, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yanfei Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Liang Zhu
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Xiaoting Xi
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Shuyuan Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Yan Li
- Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
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18
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SGLT2 inhibitor dapagliflozin prevents atherosclerotic and cardiac complications in experimental type 1 diabetes. PLoS One 2022; 17:e0263285. [PMID: 35176041 PMCID: PMC8853531 DOI: 10.1371/journal.pone.0263285] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 01/17/2022] [Indexed: 02/07/2023] Open
Abstract
Introduction Cardiovascular disease (CVD) is two to five times more prevalent in diabetic patients and is the leading cause of death. Therefore, identification of novel therapeutic strategies that reduce the risk of CVD is a research priority. Clinical trials showed that reduction in the relative risk of heart failure by sodium-glucose cotransporter 2 inhibitors (SGLT2i) are partly beyond their glucose lowering effects, however, the molecular mechanisms are still elusive. Here we investigated the role of SGLT2i dapagliflozin (DAPA) in the prevention of diabetes-induced cardiovascular complications. Methods Type 1 diabetes was induced with streptozotocin (65 mg/bwkg, ip.) in adult, male Wistar rats. Following the onset of diabetes rats were treated for six weeks with DAPA (1 mg/bwkg/day, po.). Results DAPA decreased blood glucose levels (D: 37±2.7 vs. D+DAPA: 18±5.6 mmol/L; p<0.05) and prevented metabolic decline. Aortic intima-media thickening was mitigated by DAPA. DAPA abolished cardiac hypertrophy, and myocardial damage. Cardiac inflammation and fibrosis were also moderated after DAPA treatment. Conclusions These data support the preventive and protective role of SGLT2i in diabetes-associated cardiovascular disease. SGLT2i may provide novel therapeutic strategy to hinder the development of cardiovascular diseases in type 1 diabetes, thereby improve the outcomes.
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Romero A, Dongil P, Valencia I, Vallejo S, Hipólito-Luengo ÁS, Díaz-Araya G, Bartha JL, González-Arlanzón MM, Rivilla F, de la Cuesta F, Sánchez-Ferrer CF, Peiró C. Pharmacological Blockade of NLRP3 Inflammasome/IL-1β-Positive Loop Mitigates Endothelial Cell Senescence and Dysfunction. Aging Dis 2022; 13:284-297. [PMID: 35111374 PMCID: PMC8782550 DOI: 10.14336/ad.2021.0617] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/17/2021] [Indexed: 12/13/2022] Open
Abstract
The clinical relevance of IL-1β in chronic inflammation underlying atherosclerosis has been reinforced by recent evidence associating pharmacological inhibition of the cytokine with lower cardiovascular risk. Previously, we have demonstrated a direct involvement of IL-1β in endothelial senescence. Therefore, this can be a key mechanism contributing to the sterile inflammatory milieu associated with aging, termed inflammaging. In the present study, we have evaluated whether a positive feedback of IL-1β in the NLRP3 inflammasome via NF-κB could promote human endothelial senescence in vitro and murine endothelial dysfunction in vivo. Our results indicate that the NLRP3 inflammasome is pivotal in mediating the detrimental effects of IL-1β, showing that auto-activation is a crucial feature boosting endothelial cell senescence in vitro, which is paralleled by vascular dysfunction in vivo. Hence, the inhibitor of NLRP3 inflammasome assembly, MCC 950, was able to disrupt the aforementioned positive loop, thus alleviating inflammation, cell senescence and vascular dysfunction. Besides, we explored alternative NLRP3 inflammasome inhibitory agents such as the RAS heptapeptide Ang-(1-7) and the anti-aging protein klotho, both of which demonstrated protective effects in vitro and in vivo. Altogether, our results highlight a fundamental role for the hereby described NLRP3 inflammasome/IL-1β positive feedback loop in stress-induced inflammaging and the associated vascular dysfunction, additionally providing evidence of a potential therapeutic use of MCC 950, Ang-(1-7) and recombinant klotho to block this loop and its deleterious effects.
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Affiliation(s)
- Alejandra Romero
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Pilar Dongil
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Inés Valencia
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain.,3PhD Programme in Pharmacology and Physiology, Doctoral School, Universidad Autónoma de Madrid, Madrid, Spain
| | - Susana Vallejo
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Álvaro San Hipólito-Luengo
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Guillermo Díaz-Araya
- 4Department of Pharmacological and Toxicological Chemistry, Faculty of Chemical and Pharmaceutical Sciences, Universidad de Chile, Santiago, Chile.,5Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical and Pharmaceutical Sciences and Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - José L Bartha
- 2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain.,6Department of Obstetrics and Gynecology, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - María M González-Arlanzón
- 6Department of Obstetrics and Gynecology, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain
| | - Fernando Rivilla
- 7Division of Pediatric Surgery, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Fernando de la Cuesta
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Carlos F Sánchez-Ferrer
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Concepción Peiró
- 1Department of Pharmacology and Therapeutics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.,2Instituto de Investigación Sanitaria del Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
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20
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Lu Y, Lu Y, Meng J, Wang Z. Pyroptosis and Its Regulation in Diabetic Cardiomyopathy. Front Physiol 2022; 12:791848. [PMID: 35145423 PMCID: PMC8822267 DOI: 10.3389/fphys.2021.791848] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/10/2021] [Indexed: 12/17/2022] Open
Abstract
Diabetic cardiomyopathy (DbCM) is a prevalent disease, characterized by contractile dysfunction and left ventricular hypertrophy. Patients with DbCM have high morbidity and mortality worldwide. Recent studies have identified that pyroptosis, a kind of cell death, could be induced by hyperglycemia involved in the formation of DbCM. This review summarizes the regulatory mechanisms of pyroptosis in DbCM, including NOD-like receptor3, AIM2 inflammasome, long non-coding RNAs, microRNAs, circular RNA, autophagy, and some drugs.
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Affiliation(s)
- Yafang Lu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
| | - Yaqiong Lu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
| | - Jun Meng
- Functional Department, The First Affiliated Hospital, University of South China, Hengyang, China
- *Correspondence: Jun Meng,
| | - Zuo Wang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, Hengyang, China
- Zuo Wang,
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21
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Abstract
Klotho gene was originally recognized as a putative aging-suppressor and its prominent age-regulating effects are mostly attributed to the modulation of mineral homeostasis in the kidney. However, recent studies link alterations in hippocampal Klotho expression with cognitive impairment and neurodegenerative diseases. This suggests that hippocampal neurons require Klotho for health and proper functionality. Klotho protects against neuronal dysfunction and regulates several intracellular signaling pathways including oxidative stress response, inflammation, DNA damage, autophagy, endoplasmic reticulum stress response, and multiple types of cell death. Specifically, this chapter covers the current knowledge as to how Klotho protein affects the hippocampal neuronal cells, with special attention paid to underlying molecular mechanisms, and thus influences hippocampal development, hippocampal-dependent cognition, behavior, and motor skills as well as mediates neurodegenerative processes.
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Affiliation(s)
- Jennifer Mytych
- Department of Biotechnology, Institute of Biology and Biotechnology, Collegium Scientarium Naturalium, University of Rzeszow, Werynia, Poland.
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22
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Wang K, Mao Y, Lu M, Liu X, Sun Y, Li Z, Li Y, Ding Y, Zhang J, Hong J, Xu D. Association between serum Klotho levels and the prevalence of diabetes among adults in the United States. Front Endocrinol (Lausanne) 2022; 13:1005553. [PMID: 36440221 PMCID: PMC9681912 DOI: 10.3389/fendo.2022.1005553] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/24/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diabetes is a critical contributor to the pathogenesis of cardiovascular diseases. Klotho is an anti-aging protein with cardiovascular-renal protective effects. However, the relationship between serum Klotho levels and diabetes remains poorly understood. OBJECTIVES This study aimed to investigate the relationship between serum Klotho levels and diabetes in US adults. METHODS We analyzed the cross-sectional data obtained from 13751 subjects aged 40-79 years in the National Health and Nutrition Examination Survey (NHANES) (2007-2016). Serum Klotho concentration was measured using an enzyme-linked immunosorbent assay (ELISA) and categorized into four quartiles (Q1-Q4). Multivariate logistic regression and restricted cubic spline (RCS) regression were conducted to explore the association between serum Klotho levels and the prevalence of diabetes. RESULTS As compared with quartile 1, serum Klotho levels in quartiles 2-4 yielded odds ratios (OR) (95% CI) of diabetes of 0.96 (0.80-1.15), 0.98 (0.82-1.18), and 1.25 (1.04-1.50), respectively, after covariate adjustment (P for trend = 0.018). The results implied an increased risk of diabetes. The RCS plot showed a U-shaped relationship linking serum Klotho levels with diabetes (P for nonlinearity = 0.003). CONCLUSIONS In summary, a nonlinear and positive association was found between serum Klotho levels and the prevalence of diabetes. Further study is needed to verify the causality of this association and elucidate the underlying mechanisms.
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Affiliation(s)
- Kai Wang
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yukang Mao
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- Department of Cardiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, Suzhou, Jiangsu, China
| | - Miao Lu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xianling Liu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yan Sun
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhongming Li
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yansong Li
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yinzhang Ding
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Zhang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jian Hong
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- *Correspondence: Jian Hong, ; Di Xu,
| | - Di Xu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- *Correspondence: Jian Hong, ; Di Xu,
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23
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NLRP3 Inflammasome in Diabetic Cardiomyopathy and Exercise Intervention. Int J Mol Sci 2021; 22:ijms222413228. [PMID: 34948026 PMCID: PMC8707657 DOI: 10.3390/ijms222413228] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/24/2021] [Accepted: 12/06/2021] [Indexed: 12/12/2022] Open
Abstract
Diabetic cardiomyopathy (DCM), as a common complication of diabetes, is characterized by chronic low-grade inflammation. The NLRP3 inflammasome is a key sensor mediating innate immune and inflammatory responses. However, the mechanisms initiating and promoting NLRP3 inflammasome activation in DCM is largely unexplored. The aim of the present review is to describe the link between NLRP3 inflammasome and DCM, and to provide evidence highlighting the importance of exercise training in DCM intervention. Collectively, this evidence suggests that DCM is an inflammatory disease aggravated by NLRP3 inflammasome-mediated release of IL-1β and IL-18. In addition, chronic exercise intervention is an effective preventive and therapeutic method to alleviate DCM via modulating the NLRP3 inflammasome.
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24
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Zhang X, Qu H, Yang T, Kong X, Zhou H. Regulation and functions of NLRP3 inflammasome in cardiac fibrosis: Current knowledge and clinical significance. Biomed Pharmacother 2021; 143:112219. [PMID: 34560540 DOI: 10.1016/j.biopha.2021.112219] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/11/2021] [Accepted: 09/16/2021] [Indexed: 12/18/2022] Open
Abstract
Cardiac fibrosis can lead to heart failure, arrhythmia, and sudden cardiac death, representing one of the leading causes of death due to cardiovascular diseases. Cardiac fibrosis involves several multifactorial processes that cannot be effectively controlled by the available therapies. Therefore, current research has focused on the development of novel drugs that can be used to prevent cardiac fibrosis. Recent studies on the functions of inflammasome have provided an in-depth understanding of the regulatory functions of inflammasome in cardiac fibrosis. This review summarizes the latest research on the functions of the NLRP3 inflammasome in various cardiovascular diseases. The latest findings indicate that the NLRP3 inflammasome mediates several inflammatory responses and is associated with pyroptosis, mitochondrial regulation, and myofibroblast differentiation in cardiac fibrosis. These novel findings provide insight into the vital role of the NLRP3 inflammasome in the pathogenesis of cardiac fibrosis, which can be used to identify new targets for its prevention and treatment.
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Affiliation(s)
- Xiaoqing Zhang
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine,Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huiyan Qu
- Department of Cardiovascular Disease, ShuGuang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tao Yang
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine,Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Department of Cardiovascular Disease, ShuGuang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoni Kong
- Central Laboratory, ShuGuang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hua Zhou
- Institute of Cardiovascular Disease of Integrated Traditional Chinese and Western Medicine,Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Department of Cardiovascular Disease, ShuGuang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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25
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Landry T, Shookster D, Huang H. Circulating α-klotho regulates metabolism via distinct central and peripheral mechanisms. Metabolism 2021; 121:154819. [PMID: 34153302 PMCID: PMC8277751 DOI: 10.1016/j.metabol.2021.154819] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 12/24/2022]
Abstract
Emerging evidence implicates the circulating α-klotho protein as a prominent regulator of energy balance and substrate metabolism, with diverse, tissue-specific functions. Despite its well-documented ubiquitous role inhibiting insulin signaling, α-klotho elicits potent antidiabetic and anti-obesogenic effects. α-Klotho facilitates insulin release and promotes β cell health in the pancreas, stimulates lipid oxidation in liver and adipose tissue, attenuates hepatic gluconeogenesis, and increases whole-body energy expenditure. The mechanisms underlying α-klotho's peripheral functions are multifaceted, including hydrolyzing transient receptor potential channels, stimulating integrin β1➔focal adhesion kinase signaling, and activating PPARα via inhibition of insulin-like growth factor receptor 1. Moreover, until recently, potential metabolic roles of α-klotho in the central nervous system remained unexplored; however, a novel α-klotho➔fibroblast growth factor receptor➔PI3kinase signaling axis in the arcuate nucleus of the hypothalamus has been identified as a critical regulator of energy balance and glucose metabolism. Overall, the role of circulating α-klotho in the regulation of metabolism is a new focus of research, but accumulating evidence identifies this protein as an encouraging therapeutic target for Type 1 and 2 Diabetes and obesity. This review analyzes the new literature investigating α-klotho-mediated regulation of metabolism and proposes impactful future directions to progress our understanding of this complex metabolic protein.
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Affiliation(s)
- Taylor Landry
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC, USA; Department of Kinesiology, East Carolina University, Greenville, NC, USA; Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC, USA
| | - Daniel Shookster
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC, USA; Department of Kinesiology, East Carolina University, Greenville, NC, USA; Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC, USA
| | - Hu Huang
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC, USA; Department of Kinesiology, East Carolina University, Greenville, NC, USA; Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC, USA; Department of Physiology, East Carolina University, Greenville, NC, USA.
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26
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Mamun AA, Wu Y, Nasrin F, Akter A, Taniya MA, Munir F, Jia C, Xiao J. Role of Pyroptosis in Diabetes and Its Therapeutic Implications. J Inflamm Res 2021; 14:2187-2206. [PMID: 34079327 PMCID: PMC8164340 DOI: 10.2147/jir.s291453] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/14/2021] [Indexed: 12/13/2022] Open
Abstract
Pyroptosis is mainly considered as a new pro-inflammatory mediated-programmed cell death. In addition, pyroptosis is described by gasdermin-induced pore formation on the membrane, cell swelling and rapid lysis, and several pro-inflammatory mediators interleukin-1β (IL-1β) and interleukin-18 (IL-18) release. Extensive studies have shown that pyroptosis is commonly involved by activating the caspase-1-dependent canonical pathway and caspase-4/5/11-dependent non-canonical pathway. However, pyroptosis facilitates local inflammation and inflammatory responses. Current researches have reported that pyroptosis promotes the progression of several diabetic complications. Emerging studies have suggested that some potential molecules targeting the pyroptosis and inflammasome signaling pathways could be a novel therapeutic avenue for managing and treating diabetes and its complications in the near future. Our narrative review concisely describes the possible mechanism of pyroptosis and its progressive understanding of the development of diabetic complications.
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Affiliation(s)
- Abdullah Al Mamun
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Fatema Nasrin
- Institute of Health and Biomedical Innovation, Translational Research Institute, Brisbane, Australia.,School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Afroza Akter
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Masuma Afrin Taniya
- Department of Life Sciences, School of Environment and Life Sciences, Independent University, Bangladesh, Dhaka, 1229, Bangladesh
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, People's Republic of China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang Province, People's Republic of China
| | - Jian Xiao
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou, Zhejiang Province, 325035, People's Republic of China
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Kale A, Sankrityayan H, Anders HJ, Bhanudas Gaikwad A. Klotho: A possible mechanism of action of SGLT2 inhibitors preventing episodes of acute kidney injury and cardiorenal complications of diabetes. Drug Discov Today 2021; 26:1963-1971. [PMID: 33862192 DOI: 10.1016/j.drudis.2021.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/19/2021] [Accepted: 04/06/2021] [Indexed: 12/29/2022]
Abstract
Diabetes and cardiorenal comorbidities are major global health concerns, with high economic burdens and mortality rates. Sodium glucose co-transporter-2 inhibitors (SGLT2is) are novel US Food and Drug Administration (FDA)-approved antihyperglycemics with unexpected protective potential against cardiorenal diseases in patients with or without type 2 diabetes mellitus (T2DM). Despite initial concerns, the incidence of episodes of acute kidney injury (AKI) was significantly lower in patients taking SGLT2i compared with other therapies or placebo. Evolving data suggest a link between SGLT2is and the anti-aging protein Klotho in the amelioration of diabetes and cardiorenal diseases. Here, we consider Klotho and SGLT2is as a novel therapeutic approach for the management of AKI and other cardiorenal complications in patients with or without diabetes.
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Affiliation(s)
- Ajinath Kale
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Himanshu Sankrityayan
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India
| | - Hans-Joachim Anders
- Division of Nephrology, Department of Internal Medicine IV, University Hospital of the Ludwig Maximilians University Munich, 80336 Munich, Germany
| | - Anil Bhanudas Gaikwad
- Laboratory of Molecular Pharmacology, Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Rajasthan 333031, India.
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28
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Hu PP, Bao JF, Li A. Roles for fibroblast growth factor-23 and α-Klotho in acute kidney injury. Metabolism 2021; 116:154435. [PMID: 33220250 DOI: 10.1016/j.metabol.2020.154435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/08/2020] [Accepted: 11/13/2020] [Indexed: 12/21/2022]
Abstract
Acute kidney injury is a global disease with high morbidity and mortality. Recent studies have revealed that the fibroblast growth factor-23-α-Klotho axis is closely related to chronic kidney disease, and has multiple biological functions beyond bone-mineral metabolism. However, although dysregulation of fibroblast growth factor-23-α-Klotho has been observed in acute kidney injury, the role of fibroblast growth factor-23-α-Klotho in the pathophysiology of acute kidney injury remains largely unknown. In this review, we describe recent findings regarding fibroblast growth factor-23-α-Klotho, which is mainly involved in inflammation, oxidative stress, and hemodynamic disorders. Further, based on these recent results, we put forth novel insights regarding the relationship between the fibroblast growth factor-23-α-Klotho axis and acute kidney injury, which may provide new therapeutic targets for treating acute kidney injury.
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Affiliation(s)
- Pan-Pan Hu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China
| | - Jing-Fu Bao
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China
| | - Aiqing Li
- State Key Laboratory of Organ Failure Research, National Clinical Research Center for Kidney Disease, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, 510005 Guangzhou, China.
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29
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Domingues A, Jolibois J, Marquet de Rougé P, Nivet-Antoine V. The Emerging Role of TXNIP in Ischemic and Cardiovascular Diseases; A Novel Marker and Therapeutic Target. Int J Mol Sci 2021; 22:ijms22041693. [PMID: 33567593 PMCID: PMC7914816 DOI: 10.3390/ijms22041693] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/17/2022] Open
Abstract
Thioredoxin interacting protein (TXNIP) is a metabolism- oxidative- and inflammation-related marker induced in cardiovascular diseases and is believed to represent a possible link between metabolism and cellular redox status. TXNIP is a potential biomarker in cardiovascular and ischemic diseases but also a novel identified target for preventive and curative medicine. The goal of this review is to focus on the novelties concerning TXNIP. After an overview in TXNIP involvement in oxidative stress, inflammation and metabolism, the remainder of this review presents the clues used to define TXNIP as a new marker at the genetic, blood, or ischemic site level in the context of cardiovascular and ischemic diseases.
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Affiliation(s)
- Alison Domingues
- INSERM 1140, Innovative Therapies in Haemostasis, Faculty of Pharmacy, Université de Paris, 75006 Paris, France; (A.D.); (J.J.); (P.M.d.R.)
| | - Julia Jolibois
- INSERM 1140, Innovative Therapies in Haemostasis, Faculty of Pharmacy, Université de Paris, 75006 Paris, France; (A.D.); (J.J.); (P.M.d.R.)
| | - Perrine Marquet de Rougé
- INSERM 1140, Innovative Therapies in Haemostasis, Faculty of Pharmacy, Université de Paris, 75006 Paris, France; (A.D.); (J.J.); (P.M.d.R.)
| | - Valérie Nivet-Antoine
- INSERM 1140, Innovative Therapies in Haemostasis, Faculty of Pharmacy, Université de Paris, 75006 Paris, France; (A.D.); (J.J.); (P.M.d.R.)
- Clinical Biochemistry Department, Assistance Publique des Hôpitaux de Paris, Necker Hospital, 75015 Paris, France
- Correspondence:
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30
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Sun Z, Chai Q, Zhang Z, Lu D, Meng Z, Wu W. Inhibition of SGLT1 protects against glycemic variability-induced cardiac damage and pyroptosis of cardiomyocytes in diabetic mice. Life Sci 2021; 271:119116. [PMID: 33508297 DOI: 10.1016/j.lfs.2021.119116] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 12/12/2022]
Abstract
AIMS Glycemic variability has been shown to be more harmful in the development of diabetic complication than sustained chronic hyperglycemia. In this present study, we tried to reveal the effects of glycemic variability on cardiac damage in diabetic mice and investigate whether sodium-glucose cotransporter 1 (SGLT1), an important cardiac glucose transporter, functions as an important mediator in the process. MATERIALS AND METHODS Type 2 diabetes mellitus (DM) mice were induced by a high-fat diet and intraperitoneal injection of streptozotocin (STZ), and then glycemic variability in type 2 diabetes mellitus (GVDM) was induced by alternately injecting insulin and glucose to DM mice. In order to determine the roles of SGLT1 in GVDM mice, SGLT1 inhibition was performed using shRNA against SGLT1. The blood glucose level, the cardiac function and myocardial injury were assessed. And the expressions of SGLT1 and the activations of NLRP3/caspase-1 pathway and NF-κB in left ventricular tissues were measured. KEY FINDINGS The results showed that SGLT1 was highly expressed in heart of GVDM mice compared to control and DM groups, and knockdown of SGLT1 reduced glycemic variability in GVDM mice. Moreover, glycemic variability impaired cardiac function, aggravated cardiac injury and induced NLRP3/caspase-1-mediated inflammatory response and pyroptosis. And knockdown of SGLT1 significantly attenuated the cardiac damages that induced by glycemic variability. SIGNIFICANCE The results indicated that glycemic variability could cause cardiac damage and induce inflammatory response and pyroptosis of cardiomyocytes in diabetic mice, which could be partially blocked by SGLT1 silence.
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Affiliation(s)
- Zhenjie Sun
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China
| | - Qian Chai
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China
| | - Ziying Zhang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China
| | - Dexue Lu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China
| | - Ziang Meng
- Department of Urology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China
| | - Weihua Wu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin 150001, People's Republic of China.
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31
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Zhu N, Huang B, Zhu L, Wang Y. Potential Mechanisms of Triptolide against Diabetic Cardiomyopathy Based on Network Pharmacology Analysis and Molecular Docking. J Diabetes Res 2021; 2021:9944589. [PMID: 34926700 PMCID: PMC8672107 DOI: 10.1155/2021/9944589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/03/2021] [Accepted: 11/16/2021] [Indexed: 01/14/2023] Open
Abstract
The incidence of heart failure was significantly increased in patients with diabetic cardiomyopathy (DCM). The therapeutic effect of triptolide on DCM has been reported, but the underlying mechanisms remain to be elucidated. This study is aimed at investigating the potential targets of triptolide as a therapeutic strategy for DCM using a network pharmacology approach. Triptolide and its targets were identified by the Traditional Chinese Medicine Systems Pharmacology database. DCM-associated protein targets were identified using the comparative toxicogenomics database and the GeneCards database. The networks of triptolide-target genes and DCM-associated target genes were created by Cytoscape. The common targets and enriched pathways were identified by the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. The gene-gene interaction network was analyzed by the GeneMANIA database. The drug-target-pathway network was constructed by Cytoscape. Six candidate protein targets were identified in both triptolide target network and DCM-associated network: STAT3, VEGFA, FOS, TNF, TP53, and TGFB1. The gene-gene interaction based on the targets of triptolide in DCM revealed the interaction of these targets. Additionally, five key targets that were linked to more than three genes were determined as crucial genes. The GO analysis identified 10 biological processes, 2 cellular components, and 10 molecular functions. The KEGG analysis identified 10 signaling pathways. The docking analysis showed that triptolide fits in the binding pockets of all six candidate targets. In conclusion, the present study explored the potential targets and signaling pathways of triptolide as a treatment for DCM. These results illustrate the mechanism of action of triptolide as an anti-DCM agent and contribute to a better understanding of triptolide as a transcriptional regulator of cytokine mRNA expression.
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Affiliation(s)
- Ning Zhu
- Department of Cardiology, The Third Affiliated Hospital of Shanghai University (Wenzhou People's Hospital), No. 299 Guan Road, Wenzhou, 325000 Zhejiang Province, China
| | - Bingwu Huang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan West Road, Wenzhou, 325000 Zhejiang Province, China
| | - Liuyan Zhu
- Department of General Practice, The Third Affiliated Hospital of Shanghai University (Wenzhou People's Hospital), No. 299 Guan Road, Wenzhou, 325000 Zhejiang Province, China
| | - Yi Wang
- Department of Cardiology, The Third Affiliated Hospital of Shanghai University (Wenzhou People's Hospital), No. 299 Guan Road, Wenzhou, 325000 Zhejiang Province, China
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Ma Z, Liu J, Li J, Jiang H, Kong J. Klotho Levels are Decreased and Associated with Enhanced Oxidative Stress and Inflammation in the Aqueous Humor in Patients with Exudative Age-related Macular Degeneration. Ocul Immunol Inflamm 2020; 30:630-637. [PMID: 33048602 DOI: 10.1080/09273948.2020.1828488] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE To evaluate anti-aging protein klotho levels in the aqueous humor and its association with oxidative stress and inflammation in patients with age-related macular degeneration (AMD). METHODS Levels of klotho, oxidative, and antioxidative stress markers, and proinflammatory and anti-inflammatory markers in the aqueous humor from 28 patients with exudative AMD and 35 age-matched controls were measured. RESULTS Patients with AMD had lower levels of klotho, which were negatively correlated with macular lesion size. Patients with AMD also exhibited increased levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG) and interleukin (IL)-6 but not tumor necrosis factor‑α, and decreased levels of total antioxidant status (TAS) and IL-10. Moreover, levels of klotho were negatively correlated with levels of 8-OHdG and IL-6, but positively correlated with levels of TSA and IL-10. CONCLUSION Klotho levels in the aqueous humor are decreased and associated with oxidative stress and inflammation in patients with exudative AMD.
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Affiliation(s)
- Zhongxu Ma
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Jingjing Liu
- Provincial Key Laboratory of Lens Research, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Jing Li
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Hao Jiang
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Jun Kong
- Provincial Key Laboratory of Lens Research, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
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Deng J, Zhang N, Chen F, Yang C, Ning H, Xiao C, Sun K, Liu Y, Yang M, Hu T, Zhang Z, Jiang W. Irisin ameliorates high glucose-induced cardiomyocytes injury via AMPK/mTOR signal pathway. Cell Biol Int 2020; 44:2315-2325. [PMID: 32770767 DOI: 10.1002/cbin.11441] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/29/2020] [Accepted: 08/05/2020] [Indexed: 12/11/2022]
Abstract
High glucose (HG)-induced cardiomyocytes (CMs) injury is a leading cause of diabetic cardiomyopathy with little treatment options. Irisin, a new myokine, which is cleaved from its precursor fibronectin type III domain-containing protein 5 (FNDC5), has aroused great attention as an essential cardioprotective factor and glucose metabolism regulator but little was known on diabetic cardiomyopathy yet. Here, we aim to clarify the role of irisin in the HG-induced CMs injury. Neonatal Sprague-Dawley rat CMs were cultured in a normal or HG medium for 12, 24, and 48 hr, respectively before exposing to irisin. The apoptosis level was determined by terminal-deoxynucleotidyl transferase-mediated-dUTP nick end-labeling assay. Cell viability was measured with the conventional methyl thiazolyl tetrazolium assay. Moreover, reactive oxygen species production was evaluated by dihydroethidium staining. Inflammatory factors, namely tumor necrosis factor-α, interleukin-6, interleukin-1β were determined by enzyme-linked immunosorbent assay kits. Furthermore, protein and messenger RNA (mRNA) expressions were measured by western blot and quantitative real-time polymerase chain reaction, respectively. HG increases the apoptosis of CMs and activated the inflammatory responses and oxidative stress in CMs. Meanwhile, the mRNA and protein expressions of FNDC5 are decreased after HG exposure. Nevertheless, the increased apoptosis is alleviated by irisin treatment. Notably, irisin suppresses the inflammatory responses and oxidative stress in injured CMs. Mechanically, after the administration of Compound C, AMP-activated protein kinase (AMPK) inhibitor, these cardioprotective effects resulting from irisin are reversed. Irisin plays a significant role in antiapoptosis, anti-inflammation, antioxidative stress in HG-induced CMs via AMPK/mammalian target of the rapamycin signaling pathway.
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Affiliation(s)
- Jingyu Deng
- Department of Cardiology, Postgraduate Training Base in PLA Rocket Force Characteristic Medical Center, Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Ning Zhang
- Department of surgery, Central Medical District of Chinese PLA General Hospital, Beijing, China
| | - Feng Chen
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Chao Yang
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Hongjuan Ning
- Department of Respiratory, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
| | - Chun Xiao
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Ke Sun
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Yongfei Liu
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Ming Yang
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Taohong Hu
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Zheng Zhang
- Department of Cardiology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Wei Jiang
- Department of Cardiology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi, China
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Landry T, Laing BT, Li P, Bunner W, Rao Z, Prete A, Sylvestri J, Huang H. Central α-Klotho Suppresses NPY/AgRP Neuron Activity and Regulates Metabolism in Mice. Diabetes 2020; 69:1368-1381. [PMID: 32332158 PMCID: PMC7306125 DOI: 10.2337/db19-0941] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 04/15/2020] [Indexed: 12/14/2022]
Abstract
α-Klotho is a circulating factor with well-documented antiaging properties. However, the central role of α-klotho in metabolism remains largely unexplored. The current study investigated the potential role of central α-klotho to modulate neuropeptide Y/agouti-related peptide (NPY/AgRP)-expressing neurons, energy balance, and glucose homeostasis. Intracerebroventricular administration of α-klotho suppressed food intake, improved glucose profiles, and reduced body weight in mouse models of type 1 and 2 diabetes. Furthermore, central α-klotho inhibition via an anti-α-klotho antibody impaired glucose tolerance. Ex vivo patch clamp electrophysiology and immunohistochemical analysis revealed that α-klotho suppresses NPY/AgRP neuron activity, at least in part, by enhancing miniature inhibitory postsynaptic currents. Experiments in hypothalamic GT1-7 cells observed that α-klotho induces phosphorylation of AKTser473, ERKthr202/tyr204, and FOXO1ser256 as well as blunts AgRP gene transcription. Mechanistically, fibroblast growth factor receptor 1 (FGFR1) inhibition abolished the downstream signaling of α-klotho, negated its ability to modulate NPY/AgRP neurons, and blunted its therapeutic effects. Phosphatidylinositol 3 kinase (PI3K) inhibition also abolished α-klotho's ability to suppress food intake and improve glucose clearance. These results indicate a prominent role of hypothalamic α-klotho/FGFR1/PI3K signaling in the modulation of NPY/AgRP neuron activity and maintenance of energy homeostasis, thus providing new insight into the pathophysiology of metabolic disease.
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Affiliation(s)
- Taylor Landry
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Brenton Thomas Laing
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Peixin Li
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Wyatt Bunner
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Zhijian Rao
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Amber Prete
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Julia Sylvestri
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
| | - Hu Huang
- East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC
- Department of Kinesiology, East Carolina University, Greenville, NC
- Human Performance Laboratory, College of Human Performance and Health, East Carolina University, Greenville, NC
- Department of Physiology, East Carolina University, Greenville, NC
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Abstract
Diabetes mellitus predisposes affected individuals to a significant spectrum of cardiovascular complications, one of the most debilitating in terms of prognosis is heart failure. Indeed, the increasing global prevalence of diabetes mellitus and an aging population has given rise to an epidemic of diabetes mellitus-induced heart failure. Despite the significant research attention this phenomenon, termed diabetic cardiomyopathy, has received over several decades, understanding of the full spectrum of potential contributing mechanisms, and their relative contribution to this heart failure phenotype in the specific context of diabetes mellitus, has not yet been fully resolved. Key recent preclinical discoveries that comprise the current state-of-the-art understanding of the basic mechanisms of the complex phenotype, that is, the diabetic heart, form the basis of this review. Abnormalities in each of cardiac metabolism, physiological and pathophysiological signaling, and the mitochondrial compartment, in addition to oxidative stress, inflammation, myocardial cell death pathways, and neurohumoral mechanisms, are addressed. Further, the interactions between each of these contributing mechanisms and how they align to the functional, morphological, and structural impairments that characterize the diabetic heart are considered in light of the clinical context: from the disease burden, its current management in the clinic, and where the knowledge gaps remain. The need for continued interrogation of these mechanisms (both known and those yet to be identified) is essential to not only decipher the how and why of diabetes mellitus-induced heart failure but also to facilitate improved inroads into the clinical management of this pervasive clinical challenge.
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Affiliation(s)
- Rebecca H. Ritchie
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville campus), Parkville, Victoria 3052, Australia
| | - E. Dale Abel
- Division of Endocrinology and Metabolism, University of Iowa Carver College of Medicine, Iowa City, IA 52242, United States
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City, IA 52242, United States
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Ma Z, Liu J, Li J, Jiang H, Kong J. Klotho ameliorates the onset and progression of cataract via suppressing oxidative stress and inflammation in the lens in streptozotocin-induced diabetic rats. Int Immunopharmacol 2020; 85:106582. [PMID: 32438076 DOI: 10.1016/j.intimp.2020.106582] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/04/2020] [Accepted: 05/07/2020] [Indexed: 12/25/2022]
Abstract
Increased oxidative stress and inflammation play an important role in the pathogenesis of diabetic cataract. Klotho, known as an anti-ageing protein, has antioxidative and anti-inflammatory properties. Klotho is expressed in limited tissues including the lens. Here we examined whether klotho expression is decreased in diabetic lens and, if so, whether klotho treatment can prevent diabetic cataract formation. Streptozotocin (STZ)-induced diabetic rats and age-matched control rats were treated with vehicle or klotho protein, starting at 1 week after STZ injection. Twelve weeks after treatment, cataract formation was observed in diabetic rats but not control rats. Cataract formation and scores were significantly less in klotho-treated diabetic rats than vehicle-treated diabetic rats. Levels of klotho in plasma, aqueous humor and lens were significantly decreased in vehicle-treated diabetic rats, compared with control rats, but were restored in klotho-treated diabetic rats. Additionally, vehicle-treated diabetic rats had increased oxidative stress and inflammation in the lens, which were associated with decreased antioxidant transcriptional master regulator Nrf2 activity and increased transcription factor NF-κB activity. All of these findings were ameliorated in klotho-treated diabetic rats. Notably, klotho treatment did not alter blood glucose in diabetic rats. These results indicate that klotho reduction may increase susceptibility of the lens to oxidative and inflammatory insults, promoting cataract formation under diabetic conditions. Klotho treatment can ameliorate the onset and progression of diabetic cataract via enhancing Nrf2-mediated antioxidant defense and suppressing NF-κB-mediated inflammatory responses. Klotho in the lens may be a novel therapeutic target for prevention of cataract formation in diabetes.
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Affiliation(s)
- Zhongxu Ma
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, China.
| | - Jingjing Liu
- The Fourth Affiliated Hospital of China Medical University, Provincial Key Laboratory of Lens Research, China
| | - Jing Li
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, China
| | - Hao Jiang
- Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, China
| | - Jun Kong
- The Fourth Affiliated Hospital of China Medical University, Provincial Key Laboratory of Lens Research, China.
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Advances in the molecular mechanisms of NLRP3 inflammasome activators and inactivators. Biochem Pharmacol 2020; 175:113863. [PMID: 32081791 DOI: 10.1016/j.bcp.2020.113863] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 02/13/2020] [Indexed: 12/15/2022]
Abstract
NLRP3 inflammasome is an intracellular protein complex that initiates cellular injury via assembly of NLRP3, ASC and caspase-1 in response to microbial infection and sterile stressors. The importance of NLRP3 inflammasome in immunity and human diseases has been well documented. Up to now, targeted inhibition of the assembly of NLRP3 inflammasome complex and of its activation was thought to be therapeutic strategy for associated diseases. Recent studies show that a host of molecules such as NIMA-related kinase 7 (Nek7) and DEAD-box helicase 3 X-linked (DDX3X) and a large number of biological mediators including cytokines, microRNAs, nitric oxide, carbon monoxide, nuclear factor erythroid-2 related factor 2 (Nrf2) and cellular autophagy participate in the activation and inactivation of NLRP3 inflammasome. This review summarizes current understanding of the molecular basis of NLRP3 inflammasome activation and inactivation. This knowledge may lead to development of new therapies directed at NLRP3 inflammasome related diseases.
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