1
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Aghaei SM, Hosseini SM. Inflammation-related miRNAs in obesity, CVD, and NAFLD. Cytokine 2024; 182:156724. [PMID: 39106574 DOI: 10.1016/j.cyto.2024.156724] [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: 06/01/2024] [Revised: 07/08/2024] [Accepted: 08/01/2024] [Indexed: 08/09/2024]
Abstract
Obesity, cardiovascular diseases (CVD), and nonalcoholic fatty liver disease (NAFLD) pose significant worldwide health challenges, characterized by complex interplay among inflammatory pathways that underlie their development. In this review, we examine the contribution of inflammation and associated signaling molecules to the pathogenesis of these conditions, while also emphasizing the significant participation of non-coding RNAs (ncRNAs) in modulating inflammatory pathways. In the context of obesity, aberrant expression patterns of inflammatory-associated miRNAs play a contributory role in adipose tissue inflammation and insulin resistance, thereby exacerbating disturbances in metabolic homeostasis. Similarly, in CVD, dysregulated miRNA expression alters inflammatory reactions, disrupts endothelial function, and induces cardiac remodeling, thereby impacting the advancement of the disease. Moreover, in the context of NAFLD, inflammatory-associated miRNAs are implicated in mediating hepatic inflammation, lipid deposition, and fibrosis, underscoring their candidacy as promising therapeutic targets. Additionally, the competing endogenous RNA (ceRNA) network has emerged as a novel regulatory mechanism in the etiology of CVD, obesity, and NAFLD, wherein ncRNAs assume pivotal roles in facilitating communication across diverse molecular pathways. Moreover, in the concluding section, we underscored the potential efficacy of directing interventions towards inflammatory-related miRNAs utilizing herbal remedies and therapies based on exosome delivery systems as a promising strategy for ameliorating pathologies associated with inflammation in obesity, CVD, and NAFLD.
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Affiliation(s)
- Sayed Mohsen Aghaei
- Student Research Committee, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Sayed Mostafa Hosseini
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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2
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Ghesmati Z, Rashid M, Fayezi S, Gieseler F, Alizadeh E, Darabi M. An update on the secretory functions of brown, white, and beige adipose tissue: Towards therapeutic applications. Rev Endocr Metab Disord 2024; 25:279-308. [PMID: 38051471 PMCID: PMC10942928 DOI: 10.1007/s11154-023-09850-0] [Citation(s) in RCA: 6] [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] [Accepted: 10/30/2023] [Indexed: 12/07/2023]
Abstract
Adipose tissue, including white adipose tissue (WAT), brown adipose tissue (BAT), and beige adipose tissue, is vital in modulating whole-body energy metabolism. While WAT primarily stores energy, BAT dissipates energy as heat for thermoregulation. Beige adipose tissue is a hybrid form of adipose tissue that shares characteristics with WAT and BAT. Dysregulation of adipose tissue metabolism is linked to various disorders, including obesity, type 2 diabetes, cardiovascular diseases, cancer, and infertility. Both brown and beige adipocytes secrete multiple molecules, such as batokines, packaged in extracellular vesicles or as soluble signaling molecules that play autocrine, paracrine, and endocrine roles. A greater understanding of the adipocyte secretome is essential for identifying novel molecular targets in treating metabolic disorders. Additionally, microRNAs show crucial roles in regulating adipose tissue differentiation and function, highlighting their potential as biomarkers for metabolic disorders. The browning of WAT has emerged as a promising therapeutic approach in treating obesity and associated metabolic disorders. Many browning agents have been identified, and nanotechnology-based drug delivery systems have been developed to enhance their efficacy. This review scrutinizes the characteristics of and differences between white, brown, and beige adipose tissues, the molecular mechanisms involved in the development of the adipocytes, the significant roles of batokines, and regulatory microRNAs active in different adipose tissues. Finally, the potential of WAT browning in treating obesity and atherosclerosis, the relationship of BAT with cancer and fertility disorders, and the crosstalk between adipose tissue with circadian system and circadian disorders are also investigated.
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Affiliation(s)
- Zeinab Ghesmati
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohsen Rashid
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shabnam Fayezi
- Department of Gynecologic Endocrinology and Fertility Disorders, Women's Hospital, Ruprecht-Karls University of Heidelberg, Heidelberg, Germany
| | - Frank Gieseler
- Division of Experimental Oncology, Department of Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Lübeck, 23538, Lübeck, Germany
| | - Effat Alizadeh
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Masoud Darabi
- Division of Experimental Oncology, Department of Hematology and Oncology, University Medical Center Schleswig-Holstein, Campus Lübeck, 23538, Lübeck, Germany.
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3
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Cai Y, Liu P, Xu Y, Xia Y, Peng X, Zhao H, Chen Q. Biomarkers of obesity-mediated insulin resistance: focus on microRNAs. Diabetol Metab Syndr 2023; 15:167. [PMID: 37537674 PMCID: PMC10401761 DOI: 10.1186/s13098-023-01137-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/09/2023] [Indexed: 08/05/2023] Open
Abstract
Obesity and metabolic syndromes are becoming increasingly prevalent worldwide. Insulin resistance (IR) is a common complication of obesity. However, IR occurrence varies across individuals with obesity and may involve epigenetic factors. To rationalize the allocation of healthcare resources, biomarkers for the early risk stratification of individuals with obesity should be identified. MicroRNAs (miRNAs) are closely associated with metabolic diseases and involved in epigenetic regulation. In this review, we have summarized the changes in miRNA expression in the peripheral circulation and tissues of patients and animals with obesity-associated IR over the last 5 years and identified several candidate biomarkers that predict obesity-related IR. There are areas for improvement in existing studies. First, more than the predictive validity of a single biomarker is required, and a biomarker panel needs to be formed. Second, miRNAs are often studied in isolation and do not form a network of signaling pathways. We believe that early biomarkers can help clinicians accurately predict individuals prone to obesity-related IR at an early stage. Epigenetic regulation may be one of the underlying causes of different clinical outcomes in individuals with obesity. Future studies should focus on objectively reflecting the differences in miRNA profile expression in individuals with obesity-related IR, which may help identify more reliable biomarkers. Understanding the metabolic pathways of these miRNAs can help design new metabolic risk prevention and management strategies, and support the development of drugs to treat obesity and metabolic disorders.
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Affiliation(s)
- Yichen Cai
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Pan Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yumei Xu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuguo Xia
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
| | - Xiaowan Peng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Haiyan Zhao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiu Chen
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China.
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4
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Otsuka K, Nishiyama H, Kuriki D, Kawada N, Ochiya T. Connecting the dots in the associations between diet, obesity, cancer, and microRNAs. Semin Cancer Biol 2023; 93:52-69. [PMID: 37156343 DOI: 10.1016/j.semcancer.2023.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/10/2023]
Abstract
The prevalence of obesity has reached pandemic levels worldwide, leading to a lower quality of life and higher health costs. Obesity is a major risk factor for noncommunicable diseases, including cancer, although obesity is one of the major preventable causes of cancer. Lifestyle factors, such as dietary quality and patterns, are also closely related to the onset and development of obesity and cancer. However, the mechanisms underlying the complex association between diet, obesity, and cancer remain unclear. In the past few decades, microRNAs (miRNAs), a class of small non-coding RNAs, have been demonstrated to play critical roles in biological processes such as cell differentiation, proliferation, and metabolism, highlighting their importance in disease development and suppression and as therapeutic targets. miRNA expression levels can be modulated by diet and are involved in cancer and obesity-related diseases. Circulating miRNAs can also mediate cell-to-cell communications. These multiple aspects of miRNAs present challenges in understanding and integrating their mechanism of action. Here, we introduce a general consideration of the associations between diet, obesity, and cancer and review the current knowledge of the molecular functions of miRNA in each context. A comprehensive understanding of the interplay between diet, obesity, and cancer could be valuable for the development of effective preventive and therapeutic strategies in future.
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Affiliation(s)
- Kurataka Otsuka
- Tokyo NODAI Research Institure, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya, Tokyo 156-8502, Japan; R&D Division, Kewpie Corporation, 2-5-7, Sengawa-cho, Chofu-shi, Tokyo 182-0002, Japan; Division of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, 6-7-1, Nishishinjyuku, Shinjuku-ku, Tokyo 160-0023, Japan; Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, 5-1-1, Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
| | - Hiroshi Nishiyama
- R&D Division, Kewpie Corporation, 2-5-7, Sengawa-cho, Chofu-shi, Tokyo 182-0002, Japan
| | - Daisuke Kuriki
- R&D Division, Kewpie Corporation, 2-5-7, Sengawa-cho, Chofu-shi, Tokyo 182-0002, Japan
| | - Naoki Kawada
- R&D Division, Kewpie Corporation, 2-5-7, Sengawa-cho, Chofu-shi, Tokyo 182-0002, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, 6-7-1, Nishishinjyuku, Shinjuku-ku, Tokyo 160-0023, Japan
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Zhang L, Li D, Yi P, Shi J, Guo M, Yin Q, Liu D, Zhuang P, Zhang Y. Peripheral origin exosomal microRNAs aggravate glymphatic system dysfunction in diabetic cognitive impairment. Acta Pharm Sin B 2023; 13:2817-2825. [PMID: 37521866 PMCID: PMC10372831 DOI: 10.1016/j.apsb.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/09/2023] [Accepted: 03/02/2023] [Indexed: 08/01/2023] Open
Abstract
Cognitive dysfunction is one of the common central nervous systems (CNS) complications of diabetes mellitus, which seriously affects the quality of life of patients and results in a huge economic burden. The glymphatic system dysfunction mediated by aquaporin-4 (AQP4) loss or redistribution in perivascular astrocyte endfeet plays a crucial role in diabetes-induced cognitive impairment (DCI). However, the mechanism of AQP4 loss or redistribution in the diabetic states remains unclear. Accumulating evidence suggests that peripheral insulin resistance target tissues and CNS communication affect brain homeostasis and that exosomal miRNAs are key mediators. Glucose and lipid metabolism disorder is an important pathological feature of diabetes mellitus, and skeletal muscle, liver and adipose tissue are the key target insulin resistance organs. In this review, the changes in exosomal miRNAs induced by peripheral metabolism disorders in diabetes mellitus were systematically reviewed. We focused on exosomal miRNAs that could induce low AQP4 expression and redistribution in perivascular astrocyte endfeet, which could provide an interorgan communication pathway to illustrate the pathogenesis of DCI. Furthermore, the mechanisms of exosome secretion from peripheral insulin resistance target tissue and absorption to the CNS were summarized, which will be beneficial for proposing novel and feasible strategies to optimize DCI prevention and/or treatment in diabetic patients.
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Affiliation(s)
- Lin Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dongna Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Pengrong Yi
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jiangwei Shi
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China
| | - Mengqing Guo
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Qingsheng Yin
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Dingbin Liu
- State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, and Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pengwei Zhuang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
| | - Yanjun Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
- Haihe Laboratory of Modern Chinese Medicine, Tianjin 301617, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China
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Yan M, Guo L, Ma J, Yang Y, Tang T, Zhang B, Zhou W, Zou W, Hou Z, Gu H, Gong H. Liquiritin alleviates alpha-naphthylisothiocyanate-induced intrahepatic cholestasis through the Sirt1/FXR/Nrf2 pathway. J Appl Toxicol 2023; 43:350-359. [PMID: 36008890 DOI: 10.1002/jat.4385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/09/2022] [Accepted: 08/21/2022] [Indexed: 11/11/2022]
Abstract
Liquiritin (LQ) is an important monomer active component in flavonoids of licorice. The objective of this study was to evaluate the hepatoprotective effects of LQ in cholestatic mice. LQ (40 or 80 mg/kg) was intragastrically administered to mice once daily for 6 days, and mice were treated intragastrically with a single dosage of ANIT (75 mg/kg) on the 5th day. On the 7th day, mice were sacrificed to collect blood and livers. The mRNA and protein levels were determined by qRT-PCR and western blot assay. We also conducted systematical assessments of miRNAs expression profiles in the liver. LQ ameliorated ANIT-induced cholestatic liver injury, as evidenced by reduced serum biochemical markers and attenuated pathological changes in liver. Pretreatment of LQ reduced the increase of malondialdehyde, TNF-α, and IL-1β induced by ANIT. Moreover, ANIT suppressed the expression of Sirt1 and FXR in liver tissue, which was weakened in the LQ pre-treatment group. LQ enhanced the nuclear expression of Nrf2, which was increased in the ANIT group. LQ also increased the mRNA expressions of bile acid transporters Bsep, Ntcp, Mrp3, and Mrp4. Furthermore, a miRNA deep sequencing analysis revealed that LQ had a global regulatory effect on the hepatic miRNA expression. Kyoto Encyclopedia of Genes and Genomes functional enrichment analysis showed that the differentially expressed miRNAs were mainly related to metabolic pathways, endocytosis, and MAPK signaling pathway. Collectively, LQ attenuated hepatotoxicity and cholestasis by regulating the expression of Sirt1/FXR/Nrf2 and the bile acid transporters, indicating that LQ might be an effective approach for cholestatic liver diseases.
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Affiliation(s)
- Miao Yan
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lin Guo
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiating Ma
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yan Yang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Tingli Tang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bikui Zhang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Zhou
- Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing, China
| | - Wei Zou
- NHC Key Laboratory of Birth Defects Research, Prevention and Treatment, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | - Zhenyan Hou
- Department of Pharmacy, Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
| | - Hongmei Gu
- Chia Tai Tianqing Pharmaceutical Group Co. Ltd, Lianyungang, Jiangsu, China
| | - Hui Gong
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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7
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Tang Y, Yang LJ, Liu H, Song YJ, Yang QQ, Liu Y, Qian SW, Tang QQ. Exosomal miR-27b-3p secreted by visceral adipocytes contributes to endothelial inflammation and atherogenesis. Cell Rep 2023; 42:111948. [PMID: 36640325 DOI: 10.1016/j.celrep.2022.111948] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 09/28/2022] [Accepted: 12/17/2022] [Indexed: 01/09/2023] Open
Abstract
Obesity, particularly increased visceral fat, positively correlates with various metabolic challenges, including atherosclerosis, but the mechanism is not fully understood. The aim of this study is to determine the role of visceral-fat-derived exosomes (Exo) in endothelial cells and atherosclerosis. We show that obesity changes the miRNA profile of visceral adipose exosomes in mice. Importantly, exosomal miR-27b-3p efficiently enters into the vascular endothelial cells and activates the NF-κB pathway by downregulating PPARα. Mechanistically, miR-27b-3p binds directly to the CDS region of PPARα mRNA, thereby promoting mRNA degradation and suppressing translation. In ApoE-deficient mice, administration of miR-27b-3p mimic increases inflammation and atherogenesis, while overexpression of PPARα protects against atherosclerosis. Thus, obesity-induced exosomal miR-27b-3p promotes endothelial inflammation and facilitates atherogenesis by PPARα suppression. We reveal an exosomal pathway by which obesity aggravates atherosclerosis and proposed therapeutic strategies for atherosclerosis in people with obesity.
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Affiliation(s)
- Yan Tang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Li-Jie Yang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hao Liu
- Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University of Medicine College, Shanghai 200032, China
| | - Yan-Jue Song
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qi-Qi Yang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yang Liu
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Shu-Wen Qian
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qi-Qun Tang
- Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences and Department of Endocrinology and Metabolism of Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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Chan GCK, Than WH, Kwan BCH, Lai KB, Chan RCK, Teoh JYC, Ng JKC, Chow KM, Cheng PMS, Law MC, Leung CB, Li PKT, Szeto CC. Adipose and Plasma microRNAs miR-221 and 222 Associate with Obesity, Insulin Resistance, and New Onset Diabetes after Peritoneal Dialysis. Nutrients 2022; 14:nu14224889. [PMID: 36432575 PMCID: PMC9699429 DOI: 10.3390/nu14224889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The correlation between microRNA, obesity, and glycemic intolerance in patients on peritoneal dialysis (PD) is unknown. We aimed to measure the adipose and plasma miR-221 and -222 levels, and to evaluate their association with adiposity, glucose intolerance, and new onset diabetes mellitus (NODM) after the commencement of PD. METHODS We prospectively recruited incident adult PD patients. miR-221 and -222 were measured from adipose tissue and plasma obtained during PD catheter insertion. These patients were followed for 24 months, and the outcomes were changes in adiposity, insulin resistance, and NODM after PD. RESULTS One hundred and sixty-five patients were recruited. Patients with pre-existing DM had higher adipose miR-221 (1.1 ± 1.2 vs. 0.7 ± 0.9-fold, p = 0.02) and -222 (1.9 ± 2.0 vs. 1.2 ± 1.3-fold, p = 0.01). High adipose miR-221 and -222 levels were associated with a greater increase in waist circumference (miR-221: beta 1.82, 95% CI 0.57-3.07, p = 0.005; miR-222: beta 1.35, 95% CI 0.08-2.63, p = 0.038), Homeostatic Model Assessment for Insulin Resistance (HOMA) index (miR-221: beta 8.16, 95% CI 2.80-13.53, p = 0.003; miR-222: beta 6.59, 95% CI 1.13-12.05, p = 0.018), and insulin requirements (miR-221: beta 0.05, 95% CI 0.006-0.09, p = 0.02; miR-222: beta 0.06, 95% CI 0.02-0.11, p = 0.002) after PD. The plasma miR-222 level predicted the onset of NODM (OR 8.25, 95% CI 1.35-50.5, p = 0.02). CONCLUSION miR-221 and -222 are associated with the progression of obesity, insulin resistance, and NODM after PD.
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Affiliation(s)
- Gordon Chun Kau Chan
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
- Correspondence: ; Tel.: +852-3505-1729; Fax: +852-2637-3852
| | - Win Hlaing Than
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
- Li Ka Shing Institute of Health Sciences (LiHS), Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Bonnie Ching Ha Kwan
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Ka Bik Lai
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Ronald Cheong Kin Chan
- Department of Anatomical & Cellular Pathology, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Jeremy Yuen Chun Teoh
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Jack Kit Chung Ng
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Kai Ming Chow
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Phyllis Mei Shan Cheng
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Man Ching Law
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Chi Bon Leung
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Philip Kam Tao Li
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Cheuk Chun Szeto
- Carol & Richard Yu Peritoneal Dialysis Research Centre, Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong 999077, China
- Li Ka Shing Institute of Health Sciences (LiHS), Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong 999077, China
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9
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Ma L, Gilani A, Yi Q, Tang L. MicroRNAs as Mediators of Adipose Thermogenesis and Potential Therapeutic Targets for Obesity. BIOLOGY 2022; 11:1657. [PMID: 36421371 PMCID: PMC9687157 DOI: 10.3390/biology11111657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 07/30/2023]
Abstract
Obesity is a growing health problem worldwide, associated with an increased risk of multiple chronic diseases. The thermogenic activity of brown adipose tissue (BAT) correlates with leanness in adults. Understanding the mechanisms behind BAT activation and the process of white fat "browning" has important implications for developing new treatments to combat obesity. MicroRNAs (miRNAs) are small transcriptional regulators that control gene expression in various tissues, including adipose tissue. Recent studies show that miRNAs are involved in adipogenesis and adipose tissue thermogenesis. In this review, we discuss recent advances in the role of miRNAs in adipocyte thermogenesis and obesity. The potential for miRNA-based therapies for obesity and recommendations for future research are highlighted, which may help provide new targets for treating obesity and obesity-related diseases.
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Affiliation(s)
- Lunkun Ma
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Ankit Gilani
- Weill Center for Metabolic Health, Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Weill Cornell Medicine, New York, NY 10021, USA
| | - Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou 646099, China
| | - Liling Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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10
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Zhang H, Qiao L, Liu X, Han X, Kang J, Liu Y, Lin J, Yan X. Differential expression of Ago2-mediated microRNA signaling in adipose tissue is associated with food-induced obesity. FEBS Open Bio 2022; 12:1828-1838. [PMID: 36062491 PMCID: PMC9527595 DOI: 10.1002/2211-5463.13471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 07/20/2022] [Accepted: 08/05/2022] [Indexed: 12/14/2022] Open
Abstract
Adipose tissue is a major component for the regulation of energy homeostasis by storage and release of lipids. As a core element of RNA-induced silencing complex, argonaute2 (Ago2) plays critical role in maintenance of systemic metabolic demand. Here, we show that high-fat-diet-fed mice exhibit an increase in body mass alongside systematic insulin resistance and altered rate of energy expenditure. Interestingly, Ago2 expression is associated with obesity and an increased amount of adipose tissue. Moreover, increased levels of Ago2 inhibited the expression of AMPKα by promoting its targeting by miR-148a, the most abundant microRNA in adipose tissues. Those results suggested that Ago2-miR-148a-AMPKα signaling pathway play an important function in the developing obesity and adiposity, and will further provide basic research data for the potential clinical treatment of obesity.
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Affiliation(s)
- Hansi Zhang
- School of Life Science and TechnologyXinxiang Medical UniversityChina,Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina
| | - Liang Qiao
- School of Life Science and TechnologyXinxiang Medical UniversityChina,Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina,Henan Joint International Research Laboratory of Stem Cell MedicineXinxiang Medical UniversityChina
| | - Xiaoxuan Liu
- School of Life Science and TechnologyXinxiang Medical UniversityChina,Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina
| | - Xiaojing Han
- School of Life Science and TechnologyXinxiang Medical UniversityChina,Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina
| | - Jing Kang
- School of Life Science and TechnologyXinxiang Medical UniversityChina
| | - Yanli Liu
- School of Life Science and TechnologyXinxiang Medical UniversityChina,Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina,Henan Joint International Research Laboratory of Stem Cell MedicineXinxiang Medical UniversityChina
| | - Juntang Lin
- Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina,Henan Joint International Research Laboratory of Stem Cell MedicineXinxiang Medical UniversityChina
| | - Xin Yan
- School of Life Science and TechnologyXinxiang Medical UniversityChina,Stem Cell and Biotherapy Technology Research CenterXinxiang Medical UniversityChina,Henan Joint International Research Laboratory of Stem Cell MedicineXinxiang Medical UniversityChina
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11
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Ojeda‐Rodríguez A, Assmann TS, Alonso‐Pedrero L, Azcona‐Sanjulian MC, Milagro FI, Marti A. Circulating miRNAs in girls with abdominal obesity: miR-221-3p as a biomarker of response to weight loss interventions. Pediatr Obes 2022; 17:e12910. [PMID: 35289984 PMCID: PMC9539627 DOI: 10.1111/ijpo.12910] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 12/23/2021] [Accepted: 02/13/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recent studies have associated several microRNAs (miRNAs) with childhood obesity and energy homeostasis, suggesting that an individual miRNA profile could be used as an early predictor to estimate the response to weight loss interventions in the design of precision nutrition. OBJECTIVE To investigate associations between the expression of circulating adiposity-related miRNAs and the response to a weight loss intervention. METHODS A total of 51 Spanish girls (age 7-16 years) with abdominal obesity underwent 8 weeks of a multidisciplinary intervention for weight loss. Participants were stratified into two groups in accordance with changes in body mass index (BMI) standard deviation score: low-responders (LR) and high-responders (HR). The expression of 39 circulating miRNAs (c-miRNAs) was evaluated in plasma of all subjects before the intervention. RESULTS Six miRNAs were differentially expressed between LR and HR. However, after adjustment for Tanner stage, the association was maintained only for miR-126-3p and miR-221-3p with a higher expression in HR group compared to LR group. After the intervention, miR-221-3p expression decreased in all subjects with a significant difference in the change within groups. However, changes in miR-126-3p levels were not significant. The expression of miR-221-3p was positively correlated with body weight, BMI and waist circumference, and negatively correlated with quantitative insulin sensitivity check index. CONCLUSIONS Bioinformatic analysis evidenced that miR-221-3p participates in several obesity-related pathways, and more interestingly, this miRNA targets several candidate genes to childhood obesity according to DisGeNet database. Thus, miR-221-3p could be used for predicting the response to a multidisciplinary intervention for weight loss in young girls.
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Affiliation(s)
- Ana Ojeda‐Rodríguez
- Department of Nutrition, Food Sciences and PhysiologyUniversity of NavarraPamplonaSpain,IdiSNA, Instituto de Investigación Sanitaria de NavarraPamplonaSpain
| | - Taís Silveira Assmann
- Department of Nutrition, Food Sciences and PhysiologyUniversity of NavarraPamplonaSpain,Endocrinology, Faculty of MedicineFederal University of Rio Grande do SulPorto AlegreBrazil
| | - Lucia Alonso‐Pedrero
- Department of Nutrition, Food Sciences and PhysiologyUniversity of NavarraPamplonaSpain,IdiSNA, Instituto de Investigación Sanitaria de NavarraPamplonaSpain
| | - Maria Cristina Azcona‐Sanjulian
- IdiSNA, Instituto de Investigación Sanitaria de NavarraPamplonaSpain,Pediatric Endocrinology Unit, Department of PediatricsClínica Universidad de NavarraPamplonaSpain
| | - Fermín I. Milagro
- Department of Nutrition, Food Sciences and PhysiologyUniversity of NavarraPamplonaSpain,IdiSNA, Instituto de Investigación Sanitaria de NavarraPamplonaSpain,Center for Nutrition ResearchUniversity of NavarraPamplonaSpain,Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBERobn)Physiopathology of Obesity and Nutrition, Institute of Health Carlos IIIMadridSpain
| | - Amelia Marti
- Department of Nutrition, Food Sciences and PhysiologyUniversity of NavarraPamplonaSpain,IdiSNA, Instituto de Investigación Sanitaria de NavarraPamplonaSpain,Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBERobn)Physiopathology of Obesity and Nutrition, Institute of Health Carlos IIIMadridSpain
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12
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Song L, Mu L, Wang H. MicroRNA-489-3p aggravates neuronal apoptosis and oxidative stress after cerebral ischemia-reperfusion injury. Bioengineered 2022; 13:14047-14056. [PMID: 35730531 PMCID: PMC9342425 DOI: 10.1080/21655979.2022.2062534] [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: 11/26/2022] Open
Abstract
Cerebral ischemia-reperfusion injury (CIRI) mostly occurs in the treatment stage of ischemic diseases and aggravate brain tissue damage. Although studies have demonstrated that miR-489-3p is closely related to CIRI, the effects of miR-489-3p on neural function in CIRI have not been directly studied. The transient middle cerebral artery occlusion (tMCAO) model was established by suture method, and the corresponding plasmids that interfered with the expression of miR-489-3p or Sirtuin1 (SIRT1) were injected into the model mice, and the behavioral changes of the mice were observed. Then the concentration of serum neuronal injury markers and oxidative stress indices were examined. Next, the pathological conditions, neuronal loss and apoptosis of brain tissue were observed by hematoxylin-eosin staining, Nissl staining, and Transferase-mediated deoxyuridine triphosphate-biotin nick end labeling staining. Finally, the hemoglobin content and cerebral edema in the mouse brain were determined. In addition, the expression levels of miR-489-3p and SIRT1 were detected by reverse transcription quantitative polymerase chain reaction or Western blot, and the targeting relationship between miR-489-3p and SIRT1 was verified by bioinformatics analysis and luciferase reporter assay. The experimental results found that in tMCAO mice, miR-489-3p in brain tissue was up-regulated and SIRT1 was down-regulated. Down-regulating miR-489-3p or up-regulating SIRT1 ameliorated behavioral dysfunction, neuronal damage and apoptosis, oxidative stress and brain histopathology. miR-489-3p targeted the regulation of SIRT1 expression, and down-regulating SIRT1 can reverse the protective effect of silenced miR-489-3p on brain injury. Taken together, by targeting SIRT1, elevated miR-489-3p aggravates CIRI-induced neuronal apoptosis and oxidative stress.
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Affiliation(s)
- LiGuo Song
- Department of Neurosurgery, The First People's Hospital of Mudanjiang, Mudanjiang City, Heilongjiang Province, China
| | - LuYan Mu
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Haerbin, Heilongjiang Province, China
| | - HongLiang Wang
- Department of Neurology, The Sixth People's Hospital of Nantong City, Nantong City, Jiangsu Province, China
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13
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Zhao N, Yu H, Xi Y, Dong M, Wang Y, Sun C, Zhang J, Xu N, Liu W. MicroRNA-221-5p promotes [Korcheva, 2007 #167] via PI3K/Akt signaling pathway by targeting COL4a5. Toxicon 2022; 212:11-18. [DOI: 10.1016/j.toxicon.2022.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 10/18/2022]
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14
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Bond ST, Calkin AC, Drew BG. Adipose-Derived Extracellular Vesicles: Systemic Messengers and Metabolic Regulators in Health and Disease. Front Physiol 2022; 13:837001. [PMID: 35283789 PMCID: PMC8905439 DOI: 10.3389/fphys.2022.837001] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/01/2022] [Indexed: 12/12/2022] Open
Abstract
Adipose tissue is comprised of a heterogeneous population of cells that co-operate to perform diverse physiological roles including endocrine-related functions. The endocrine role of adipose tissue enables it to communicate nutritional and health cues to other organs, such as the liver, muscle, and brain, in order to regulate appetite and whole body metabolism. Adipose tissue dysfunction, which is often observed in obesity, is associated with changes in the adipose secretome, which can subsequently contribute to disease pathology. Indeed, secreted bioactive factors released from adipose tissue contribute to metabolic homeostasis and likely play a causal role in disease; however, what constitutes the entirety of the adipose tissue secretome is still poorly understood. Recent advances in nanotechnology have advanced this field substantially and have led to the identification of small, secreted particles known as extracellular vesicles (EVs). These small nano-sized lipid envelopes are released by most cell types and are capable of systemically delivering bioactive molecules, such as nucleic acids, proteins, and lipids. EVs interact with target cells to deliver specific cargo that can then elicit effects in various tissues throughout the body. Adipose tissue has recently been shown to secrete EVs that can communicate with the periphery to maintain metabolic homeostasis, or under certain pathological conditions, drive disease. In this review, we discuss the current landscape of adipose tissue-derived EVs, with a focus on their role in the regulation of metabolic homeostasis and disease pathology.
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Affiliation(s)
- Simon T Bond
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Central Clinical School, Monash University, Melbourne, VIC, Australia.,Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia
| | - Anna C Calkin
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Central Clinical School, Monash University, Melbourne, VIC, Australia.,Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia
| | - Brian G Drew
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia.,Central Clinical School, Monash University, Melbourne, VIC, Australia.,Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia
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15
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Rodríguez-Sanabria JS, Escutia-Gutiérrez R, Rosas-Campos R, Armendáriz-Borunda JS, Sandoval-Rodríguez A. An Update in Epigenetics in Metabolic-Associated Fatty Liver Disease. Front Med (Lausanne) 2022; 8:770504. [PMID: 35087844 PMCID: PMC8787199 DOI: 10.3389/fmed.2021.770504] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 12/02/2021] [Indexed: 12/17/2022] Open
Abstract
Metabolic-associated fatty liver disease (MAFLD) is characterized by hepatic steatosis accompanied by one of three features: overweight or obesity, T2DM, or lean or normal weight with evidence of metabolic dysregulation. It is distinguished by excessive fat accumulation in hepatocytes, and a decrease in the liver's ability to oxidize fats, the accumulation of ectopic fat, and the activation of proinflammatory pathways. Chronic damage will keep this pathophysiologic cycle active causing progression from hepatic steatosis to cirrhosis and eventually, hepatocarcinoma. Epigenetics affecting gene expression without altering DNA sequence allows us to study MAFLD pathophysiology from a different perspective, in which DNA methylation processes, histone modifications, and miRNAs expression have been closely associated with MAFLD progression. However, these considerations also faced us with the circumstance that modifying those epigenetics patterns might lead to MAFLD regression. Currently, epigenetics is an area of great interest because it could provide new insights in therapeutic targets and non-invasive biomarkers. This review comprises an update on the role of epigenetic patterns, as well as innovative therapeutic targets and biomarkers in MAFLD.
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Affiliation(s)
- J Samael Rodríguez-Sanabria
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, CUCS, University of Guadalajara, Guadalajara, Mexico
| | - Rebeca Escutia-Gutiérrez
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, CUCS, University of Guadalajara, Guadalajara, Mexico
| | - Rebeca Rosas-Campos
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, CUCS, University of Guadalajara, Guadalajara, Mexico
| | - Juan S Armendáriz-Borunda
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, CUCS, University of Guadalajara, Guadalajara, Mexico.,School of Medicine and Health Sciences, Tecnologico de Monterrey, Campus Guadalajara, Zapopan, Mexico
| | - Ana Sandoval-Rodríguez
- Department of Molecular Biology and Genomics, Institute for Molecular Biology in Medicine and Gene Therapy, CUCS, University of Guadalajara, Guadalajara, Mexico
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16
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Bourgeois BL, Lin HY, Yeh AY, Levitt DE, Primeaux SD, Ferguson TF, Molina PE, Simon L. Unique circulating microRNA associations with dysglycemia in people living with HIV and alcohol use. Physiol Genomics 2022; 54:36-44. [PMID: 34859690 PMCID: PMC8891241 DOI: 10.1152/physiolgenomics.00085.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
People living with HIV (PLWH) have increased prevalence of comorbid conditions including insulin resistance and at-risk alcohol use. Circulating microRNAs (miRs) may serve as minimally invasive indicators of pathophysiological states. We aimed to identify whether alcohol modulates circulating miR associations with measures of glucose/insulin dynamics in PLWH. PLWH (n = 96; 69.8% males) enrolled in the Alcohol & Metabolic Comorbidities in PLWH: Evidence-Driven Interventions (ALIVE-Ex) study were stratified into negative phosphatidylethanol (PEth < 8 ng/mL, n = 42) and positive PEth (PEth ≥ 8 ng/mL, n = 54) groups. An oral glucose tolerance test (OGTT) was administered, and total RNA was isolated from fasting plasma to determine absolute miR expression. Circulating miRs were selected based on their role in skeletal muscle (miR-133a and miR-206), pancreatic β-cell (miR-375), liver (miR-20a), and adipose tissue (miR-let-7b, miR-146a, and miR-221) function. Correlation and multiple regression analyses between miR expression and adiponectin, 2 h glucose, insulin, and C-peptide values were performed adjusting for body mass index (BMI) category, age, sex, and viral load. miR-133a was negatively associated with adiponectin (P = 0.002) in the negative PEth group, and miR-20a was positively associated with 2 h glucose (P = 0.013) in the positive PEth group. Regression analyses combining miRs demonstrated that miR-133a (P < 0.001) and miR-221 (P = 0.010) together predicted adiponectin in the negative PEth group. miR-20a (P < 0.001) and miR-375 (P = 0.002) together predicted 2 h glucose in the positive PEth group. Our results indicate that associations between miRs and measures of glucose/insulin dynamics differed between PEth groups, suggesting that the pathophysiological mechanisms contributing to altered glucose homeostasis in PLWH are potentially modulated by alcohol use.
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Affiliation(s)
- Brianna L. Bourgeois
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Hui-Yi Lin
- 2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana,3School of Public Health, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Alice Y. Yeh
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Danielle E. Levitt
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Stefany D. Primeaux
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,4Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, Louisiana
| | - Tekeda F. Ferguson
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana,5Department of Epidemiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Patricia E. Molina
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Liz Simon
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
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17
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Zhou Y, Xia M, Cui C, Wei H, Jiang S, Peng J. Circulating Exosomal miR-221 from Maternal Obesity Inhibits Angiogenesis via Targeting Angptl2. Int J Mol Sci 2021; 22:ijms221910343. [PMID: 34638684 PMCID: PMC8508603 DOI: 10.3390/ijms221910343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 02/08/2023] Open
Abstract
Maternal obesity disrupts both placental angiogenesis and fetus development. However, the links between adipocytes and endothelial cells in maternal obesity are not fully understood. The aim of this study was to characterize exosome-enriched miRNA from obese sow’s adipose tissue and evaluate the effect on angiogenesis of endothelial cells. Plasma exosomes were isolated and analyzed by nanoparticle tracking analysis (NTA), electron morphological analysis, and protein marker expression. The number of exosomes was increased as the gestation of the sows progressed. In addition, we found that exosomes derived from obese sows inhibited endothelial cell migration and angiogenesis. miRNA detection showed that miR-221, one of the miRNAs, was significantly enriched in exosomes from obese sows. Further study demonstrated that exosomal miR-221 inhibited the proliferation and angiogenesis of endothelial cells through repressing the expression of Angptl2 by targeting its 3′ untranslated region. In summary, miR-221 was a key component of the adipocyte-secreted exosomal vesicles that mediate angiogenesis. Our study may be a novel mechanism showing the secretion of “harmful” exosomes from obesity adipose tissues causes placental dysplasia during gestation.
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Affiliation(s)
- Yuanfei Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.Z.); (M.X.); (C.C.); (H.W.)
| | - Mao Xia
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.Z.); (M.X.); (C.C.); (H.W.)
| | - Chenbin Cui
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.Z.); (M.X.); (C.C.); (H.W.)
| | - Hongkui Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.Z.); (M.X.); (C.C.); (H.W.)
| | - Siwen Jiang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Correspondence: (S.J.); (J.P.)
| | - Jian Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.Z.); (M.X.); (C.C.); (H.W.)
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
- Correspondence: (S.J.); (J.P.)
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18
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Fodor A, Lazar AL, Buchman C, Tiperciuc B, Orasan OH, Cozma A. MicroRNAs: The Link between the Metabolic Syndrome and Oncogenesis. Int J Mol Sci 2021; 22:ijms22126337. [PMID: 34199293 PMCID: PMC8231835 DOI: 10.3390/ijms22126337] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/03/2021] [Accepted: 06/09/2021] [Indexed: 12/14/2022] Open
Abstract
Metabolic syndrome (MetS) represents a cluster of disorders that increase the risk of a plethora of conditions, in particular type two diabetes, cardiovascular diseases, and certain types of cancers. MetS is a complex entity characterized by a chronic inflammatory state that implies dysregulations of adipokins and proinflammatory cytokins together with hormonal and growth factors imbalances. Of great interest is the implication of microRNA (miRNA, miR), non-coding RNA, in cancer genesis, progression, and metastasis. The adipose tissue serves as an important source of miRs, which represent a novel class of adipokines, that play a crucial role in carcinogenesis. Altered miRs secretion in the adipose tissue, in the context of MetS, might explain their implication in the oncogenesis. The interplay between miRs expressed in adipose tissue, their dysregulation and cancer pathogenesis are still intriguing, taking into consideration the fact that miRNAs show both carcinogenic and tumor suppressor effects. The aim of our review was to discuss the latest publications concerning the implication of miRs dysregulation in MetS and their significance in tumoral signaling pathways. Furthermore, we emphasized the role of miRNAs as potential target therapies and their implication in cancer progression and metastasis.
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Affiliation(s)
- Adriana Fodor
- Department of Diabetes and Nutrtion, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
- Correspondence: (A.F.); (A.L.L.); (C.B.)
| | - Andrada Luciana Lazar
- Department of Dermatology, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
- Correspondence: (A.F.); (A.L.L.); (C.B.)
| | - Cristina Buchman
- Department of Oncology, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
- Correspondence: (A.F.); (A.L.L.); (C.B.)
| | - Brandusa Tiperciuc
- Department of Pharmaceutical Chemistry, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Olga Hilda Orasan
- Internal Medicine Department, 4th Medical Clinic “Iuliu Haţieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (O.H.O.); (A.C.)
| | - Angela Cozma
- Internal Medicine Department, 4th Medical Clinic “Iuliu Haţieganu” University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (O.H.O.); (A.C.)
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19
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Shen Y, Lu H, Song G. MiR-221-3p and miR-92a-3p enhances smoking-induced inflammation in COPD. J Clin Lab Anal 2021; 35:e23857. [PMID: 34097306 PMCID: PMC8274981 DOI: 10.1002/jcla.23857] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 03/29/2021] [Accepted: 04/10/2021] [Indexed: 12/23/2022] Open
Abstract
Background Smoking is likely to facilitate airway inflammation and finally contributes to chronic obstructive pulmonary disease (COPD). This investigation was intended to elucidate miRNAs that were involved in smoking‐induced COPD. Methods Altogether 155 COPD patients and 77 healthy volunteers were recruited, and their serum levels of miR‐221‐3p and miR‐92a‐3p were determined. Besides, human bronchial epithelial cells (16HBECs) were purchased, and they were treated by varying concentrations of cigarette smoke extract (CSE). The 16HBECs were, additionally, transfected by miR‐221‐3p mimic, miR‐92a‐3p mimic, miR‐221‐3p inhibitor or miR‐92a‐3p inhibitor, and cytokines released by them, including TNF‐α, IL‐8, IL‐1β, and TGF‐β1, were monitored using enzyme linked immunosorbent assay (ELISA) kits. Results Chronic obstructive pulmonary disease patients possessed higher serum levels of miR‐221‐3p and miR‐92a‐3p than healthy volunteers (p < 0.05), and both miR‐221‐3p and miR‐92a‐3p were effective biomarkers in diagnosing stable COPD from acute exacerbation COPD. Moreover, viability of 16HBECs was undermined by CSE treatment (p < 0.05), and exposure to CSE facilitated 16HBECs’ release of TNF‐α, IL‐8, IL‐1β, and TGF‐β1 (p < 0.05). Furthermore, miR‐221‐3p/miR‐92a‐3p expression in 16HBECs was significantly suppressed after transfection of miR‐221‐3p/miR‐92a‐3p inhibitor (p < 0.05), which abated CSE‐triggered increase in cytokine production and decline in viability of 16HBECs (p < 0.05). Conclusion MiR‐221‐3p and miR‐92a‐3p were involved in CSE‐induced hyperinflammation of COPD, suggesting that they were favorable alternatives in diagnosing COPD patients with smoking history.
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Affiliation(s)
- Yahui Shen
- Department of Respiratory and Critical Care Medicine, Taizhou Clinical Medical School of Nanjing Medical University (Taizhou People's Hospital), Taizhou, China
| | - Huiyu Lu
- Department of Respiratory and Critical Care Medicine, Taizhou Clinical Medical School of Nanjing Medical University (Taizhou People's Hospital), Taizhou, China
| | - Guixian Song
- Department of Cardiology, Taizhou Clinical Medical School of Nanjing Medical University (Taizhou People's Hospital), Taizhou, China
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20
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Wei R, Han C, He F, Xiong X, Ye F, Liu H, Li L, Xu H, Wei S, Zeng X. Role of forkhead box protein O1 and insulin on cell proliferation mediated by sirtuin 1 in goose primary hepatocytes. J APPL POULTRY RES 2021. [DOI: 10.1016/j.japr.2021.100144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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21
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Ramzan F, Vickers MH, Mithen RF. Epigenetics, microRNA and Metabolic Syndrome: A Comprehensive Review. Int J Mol Sci 2021; 22:ijms22095047. [PMID: 34068765 PMCID: PMC8126218 DOI: 10.3390/ijms22095047] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 12/13/2022] Open
Abstract
Epigenetics refers to the DNA chemistry changes that result in the modification of gene transcription and translation independently of the underlying DNA coding sequence. Epigenetic modifications are reported to involve various molecular mechanisms, including classical epigenetic changes affecting DNA methylation and histone modifications and small RNA-mediated processes, particularly that of microRNAs. Epigenetic changes are reversible and are closely interconnected. They are recognised to play a critical role as mediators of gene regulation, and any alteration in these mechanisms has been identified to mediate various pathophysiological conditions. Moreover, genetic predisposition and environmental factors, including dietary alterations, lifestyle or metabolic status, are identified to interact with the human epigenome, highlighting the importance of epigenetic factors as underlying processes in the aetiology of various diseases such as MetS. This review will reflect on how both the classical and microRNA-regulated epigenetic changes are associated with the pathophysiology of metabolic syndrome. We will then focus on the various aspects of epigenetic-based strategies used to modify MetS outcomes, including epigenetic diet, epigenetic drugs, epigenome editing tools and miRNA-based therapies.
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He G, Gu J, Wang H, Cheng S, Xiong Q, Ke M, Hu Y, Feng J, Song L, Liu Z, Xu Y. Nr2e1 deficiency aggravates insulin resistance and chronic inflammation of visceral adipose tissues in a diet-induced obese mice model. Life Sci 2021; 278:119562. [PMID: 33915130 DOI: 10.1016/j.lfs.2021.119562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/11/2021] [Accepted: 04/23/2021] [Indexed: 10/21/2022]
Abstract
AIMS To investigate the nuclear receptor subfamily 2 group E member 1 (Nr2e1) expression in adipose tissues of obese mice and assess the role of Nr2e1 in insulin resistance and chronic inflammation of the adipose tissues. MAIN METHODS An obese model was established in Nr2e1 knockout (KO) mice and their wild type (WT) littermates through a long-term high-fat diet (HFD) feeding regime. The epididymal fat weight, body weight, and daily food intake were recorded. The blood lipid profile, blood inflammatory factors, and the levels of fasting blood glucose (FBG) and fasting insulin were determined. We estimated insulin resistance by the homeostasis model assessment (HOMA). The expression of inflammatory factors and F4/80 was examined by polymerase chain reaction (PCR) and western blotting to assess adipose tissues inflammation. We also determined the molecules of insulin signaling and the nuclear factor kappa B (NF-κB) pathway by western blotting. KEY FINDINGS The Nr2e1 expression was upregulated in WT obese mice when compared with that in control mice. Despite a lower body weight and epididymal fat mass in Nr2e1-/- mice, these rats showed increased inflammatory cytokines secretion, more pronounced hyperlipidemia, and impaired insulin sensitivity after HFD treatment. Further investigation revealed that Nr2e1 deletion affected the expression of insulin signaling and NF-κB pathway-related molecules in visceral adipose tissues. SIGNIFICANCE Nr2e1 may act as a potential target to improve insulin sensitivity and inflammation in obesity and related complications.
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Affiliation(s)
- Guangzhen He
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China; Department of Pediatrics, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
| | - Jiaowei Gu
- Department of Pediatrics, Affiliated Taihe Hospital of Hubei University of Medicine, Shiyan, Hubei, China
| | - Huawei Wang
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Siyuan Cheng
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Qing Xiong
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Mengting Ke
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yong Hu
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Jieyuan Feng
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Linyang Song
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Zheng Liu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
| | - Yancheng Xu
- Department of Endocrinology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.
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Lou T, Huang Q, Su H, Zhao D, Li X. Targeting Sirtuin 1 signaling pathway by ginsenosides. JOURNAL OF ETHNOPHARMACOLOGY 2021; 268:113657. [PMID: 33276056 DOI: 10.1016/j.jep.2020.113657] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 11/16/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginseng is a kind of traditional Chinese herbal medicine, known as "king of herbs" and widely used in China, South Korea, and other Asian countries. Ginsenosides are one of active components of Panax ginseng Meyer, which have many pharmacological effects, such as enhancing memory, improving immunity and cardiovascular system, delaying aging, and preventing cancer. AIMS OF THE REVIEW This review aims to summarize the recent findings for ginsenosides targeting Sirtuin 1 (SIRT1) signaling pathway for the prevention and treatment of a series of diseases. MATERIALS AND METHODS An up-to-August 2020 search was carried out in databases such as PubMed, ScienceDirect, Google Scholar, China National Knowledge Infrastructure, and classic books of traditional Chinese medicine using the keywords: "SIRT1", and/or paired with "ginseng", and "ginsenosides". RESULTS SIRT1 is a class-III histone deacetylase (HDAC), a nicotinamide adenine dinucleotide (NAD+)-dependent enzyme, which is deeply involved in a series of pathological processes. Based on specific intracellular localization, SIRT1 has various cytoplasmic and nuclear targets and plays a potential role in energy metabolism, oxidative stress, inflammation, tumorigenesis, and aging. Ginsenosides are generally classified into three groups and microbially transformed to final metabolites. Among of them, most ginsenosides have been reported as SIRT1 activators, especially those ginsenosides with two glucopyranosyl groups on the C-3 position. Importantly, many ginsenosides can be used to prevent and treat oxidative stress, inflammation, aging, tumorigenesis, depression, and others by targeting SIRT1 signaling pathway. CONCLUSIONS This paper reviews recent evidences of ginsenosides targeting SIRT1 for the first time, which could provide new insights on the preclinical and clinical researches for ginsenosides against multiple disorders.
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Affiliation(s)
- Tingting Lou
- Research Center of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China
| | - Qingxia Huang
- Research Center of Traditional Chinese Medicine, College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China
| | - Hang Su
- Practice Innovations Center, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China
| | - Daqing Zhao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China; Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China; Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China.
| | - Xiangyan Li
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China; Key Laboratory of Active Substances and Biological Mechanisms of Ginseng Efficacy, Ministry of Education, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China; Jilin Provincial Key Laboratory of Bio-Macromolecules of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, Jilin, 130021, China.
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Ramos-Lopez O, Milagro FI, Riezu-Boj JI, Martinez JA. Epigenetic signatures underlying inflammation: an interplay of nutrition, physical activity, metabolic diseases, and environmental factors for personalized nutrition. Inflamm Res 2021; 70:29-49. [PMID: 33231704 PMCID: PMC7684853 DOI: 10.1007/s00011-020-01425-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/26/2020] [Accepted: 11/12/2020] [Indexed: 12/12/2022] Open
Abstract
AIM AND OBJECTIVE Emerging translational evidence suggests that epigenetic alterations (DNA methylation, miRNA expression, and histone modifications) occur after external stimuli and may contribute to exacerbated inflammation and the risk of suffering several diseases including diabetes, cardiovascular diseases, cancer, and neurological disorders. This review summarizes the current knowledge about the harmful effects of high-fat/high-sugar diets, micronutrient deficiencies (folate, manganese, and carotenoids), obesity and associated complications, bacterial/viral infections, smoking, excessive alcohol consumption, sleep deprivation, chronic stress, air pollution, and chemical exposure on inflammation through epigenetic mechanisms. Additionally, the epigenetic phenomena underlying the anti-inflammatory potential of caloric restriction, n-3 PUFA, Mediterranean diet, vitamin D, zinc, polyphenols (i.e., resveratrol, gallic acid, epicatechin, luteolin, curcumin), and the role of systematic exercise are discussed. METHODS Original and review articles encompassing epigenetics and inflammation were screened from major databases (including PubMed, Medline, Science Direct, Scopus, etc.) and analyzed for the writing of the review paper. CONCLUSION Although caution should be exercised, research on epigenetic mechanisms is contributing to understand pathological processes involving inflammatory responses, the prediction of disease risk based on the epigenotype, as well as the putative design of therapeutic interventions targeting the epigenome.
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Affiliation(s)
- Omar Ramos-Lopez
- Medicine and Psychology School, Autonomous University of Baja California, Tijuana, Baja California, Mexico
| | - Fermin I Milagro
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 1 Irunlarrea Street, 31008, Pamplona, Spain.
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.
- CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain.
| | - Jose I Riezu-Boj
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 1 Irunlarrea Street, 31008, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
| | - J Alfredo Martinez
- Department of Nutrition, Food Science and Physiology, Center for Nutrition Research, University of Navarra, 1 Irunlarrea Street, 31008, Pamplona, Spain
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
- CIBERobn, Fisiopatología de la Obesidad y la Nutrición, Carlos III Health Institute, Madrid, Spain
- Precision Nutrition and Cardiometabolic Health, IMDEA-Food Institute (Madrid Institute for Advanced Studies), Madrid, Spain
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Huang F, Zhu P, Wang J, Chen J, Lin W. Postnatal overfeeding induces hepatic microRNA-221 expression and impairs the PI3K/AKT pathway in adult male rats. Pediatr Res 2021; 89:143-149. [PMID: 32305038 DOI: 10.1038/s41390-020-0877-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 03/14/2020] [Accepted: 03/19/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Increasing evidence suggests that postnatal overfeeding induces childhood obesity, which is strongly associated with metabolic syndrome. Insulin resistance is a risk factor for metabolic syndrome. MicroRNA-221 (miR-221) is involved in the development of obesity and has been reported to negatively regulate insulin sensitivity. However, the underlying mechanism remains unclear. METHODS Rats raised in small litters (SLs, three pups/dam, n = 10) and normal litters (NLs, 10 pups/dam, n = 10) were used to model early postnatal overfeeding and act as controls, respectively. miR-221 and proteins related to the phosphoinositide 3-kinases (PI3K)/protein kinase B (AKT) pathway were assessed in the liver. RESULTS Early postnatal overfeeding significantly increased body weight, visceral fat index, blood glucose, serum triglycerides, and the homeostasis model assessment of insulin resistance at 9 weeks. Real-time polymerase chain reaction (PCR) and western blot analysis revealed that postnatal overfeeding induced insulin receptor and insulin receptor substrate 2 expression, but decreased PI3K and AKT phosphorylation in the liver. Quantitative real-time PCR showed that hepatic miR-221 was significantly overexpressed in the SL group. CONCLUSIONS These results indicate that postnatal overfeeding induces hepatic miR-221 overexpression and impairs the PI3K/AKT signal pathway, which may cause insulin resistance. IMPACT We first report postnatal overfeeding induces hepatic miR-221 expression. Postnatal overfeeding impairs PI3K/AKT pathway in the liver of adult rats. Postnatal overfeeding induces obesity and high blood glucose. Avoidance of overfeeding during early postnatal life may prevent obesity and T2DM.
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Affiliation(s)
- Fang Huang
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.
| | - Pingping Zhu
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Jingwen Wang
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Jie Chen
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Wenting Lin
- School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
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Gharanei S, Shabir K, Brown JE, Weickert MO, Barber TM, Kyrou I, Randeva HS. Regulatory microRNAs in Brown, Brite and White Adipose Tissue. Cells 2020; 9:cells9112489. [PMID: 33207733 PMCID: PMC7696849 DOI: 10.3390/cells9112489] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023] Open
Abstract
MicroRNAs (miRNAs) constitute a class of short noncoding RNAs which regulate gene expression by targeting messenger RNA, inducing translational repression and messenger RNA degradation. This regulation of gene expression by miRNAs in adipose tissue (AT) can impact on the regulation of metabolism and energy homeostasis, particularly considering the different types of adipocytes which exist in mammals, i.e., white adipocytes (white AT; WAT), brown adipocytes (brown AT; BAT), and inducible brown adipocytes in WAT (beige or brite or brown-in-white adipocytes). Indeed, an increasing number of miRNAs has been identified to regulate key signaling pathways of adipogenesis in BAT, brite AT, and WAT by acting on transcription factors that promote or inhibit adipocyte differentiation. For example, MiR-328, MiR-378, MiR-30b/c, MiR-455, MiR-32, and MiR-193b-365 activate brown adipogenesis, whereas MiR-34a, MiR-133, MiR-155, and MiR-27b are brown adipogenesis inhibitors. Given that WAT mainly stores energy as lipids, whilst BAT mainly dissipates energy as heat, clarifying the effects of miRNAs in different types of AT has recently attracted significant research interest, aiming to also develop novel miRNA-based therapies against obesity, diabetes, and other obesity-related diseases. Therefore, this review presents an up-to-date comprehensive overview of the role of key regulatory miRNAs in BAT, brite AT, and WAT.
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Affiliation(s)
- Seley Gharanei
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Kiran Shabir
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - James E. Brown
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- School of Biosciences, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
| | - Martin O. Weickert
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre of Applied Biological & Exercise Sciences, Faculty of Health & Life Sciences, Coventry University, Coventry CV1 5FB, UK
| | - Thomas M. Barber
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (S.G.); (M.O.W.); (T.M.B.); (I.K.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK; (K.S.); (J.E.B.)
- Correspondence:
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Human adipocyte differentiation and composition of disease-relevant lipids are regulated by miR-221-3p. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1866:158841. [PMID: 33075494 DOI: 10.1016/j.bbalip.2020.158841] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/07/2020] [Accepted: 10/11/2020] [Indexed: 12/15/2022]
Abstract
MicroRNA-221-3p (miR-221-3p) is associated with both metabolic diseases and cancers. However, its role in terminal adipocyte differentiation and lipid metabolism are uncharacterized. miR-221-3p or its inhibitor was transfected into differentiating or mature human adipocytes. Triglyceride (TG) content and adipogenic gene expression were monitored, global lipidome analysis was carried out, and mechanisms underlying the effects of miR-221-3p were investigated. Finally, cross-talk between miR-221-3p expressing adipocytes and MCF-7 breast carcinoma (BC) cells was studied, and miR-221-3p expression in tumor-proximal adipose biopsies from BC patients analyzed. miR-221-3p overexpression inhibited terminal differentiation of adipocytes, as judged from reduced TG storage and gene expression of the adipogenic markers SCD1, GLUT4, FAS, DGAT1/2, AP2, ATGL and AdipoQ, whereas the miR-221-3p inhibitor increased TG storage. Knockdown of the predicted miR-221-3p target, 14-3-3γ, had similar antiadipogenic effects as miR-221-3p overexpression, indicating it as a potential mediator of mir-221-3p function. Importantly, miR-221-3p overexpression inhibited de novo lipogenesis but increased the concentrations of ceramides and sphingomyelins, while reducing diacylglycerols, concomitant with suppression of sphingomyelin phosphodiesterase, ATP citrate lyase, and acid ceramidase. miR-221-3p expression was elevated in tumor proximal adipose tissue from patients with invasive BC. Conditioned medium of miR-221-3p overexpressing adipocytes stimulated the invasion and proliferation of BC cells, while medium of the BC cells enhanced miR-221-3p expression in adipocytes. Elevated miR-221-3p impairs adipocyte lipid storage and differentiation, and modifies their ceramide, sphingomyelin, and diacylglycerol content. These alterations are relevant for metabolic diseases but may also affect cancer progression.
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Sidorkiewicz I, Jóźwik M, Niemira M, Krętowski A. Insulin Resistance and Endometrial Cancer: Emerging Role for microRNA. Cancers (Basel) 2020; 12:E2559. [PMID: 32911852 PMCID: PMC7563767 DOI: 10.3390/cancers12092559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 12/21/2022] Open
Abstract
Endometrial cancer (EC) remains one of the most common cancers of the female reproductive system. Epidemiological and clinical data implicate insulin resistance (IR) and its accompanying hyperinsulinemia as key factors in the development of EC. MicroRNAs (miRNAs) are short molecules of non-coding endogenous RNA that function as post-transcriptional regulators. Accumulating evidence has shown that the miRNA expression pattern is also likely to be associated with EC risk factors. The aim of this work was the verification of the relationships between IR, EC, and miRNA, and, as based on the literature data, elucidation of miRNA's potential utility for EC prevention in IR patients. The pathways affected in IR relate to the insulin receptors, insulin-like growth factors and their receptors, insulin-like growth factor binding proteins, sex hormone-binding globulin, and estrogens. Herein, we present and discuss arguments for miRNAs as a plausible molecular link between IR and EC development. Specifically, our careful literature search indicated that dysregulation of at least 13 miRNAs has been ascribed to both conditions. We conclude that there is a reasonable possibility for miRNAs to become a predictive factor of future EC in IR patients.
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Affiliation(s)
- Iwona Sidorkiewicz
- Clinical Research Centre, Medical University of Białystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland; (M.N.); (A.K.)
| | - Maciej Jóźwik
- Department of Gynecology and Gynecologic Oncology, Medical University of Białystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland;
| | - Magdalena Niemira
- Clinical Research Centre, Medical University of Białystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland; (M.N.); (A.K.)
| | - Adam Krętowski
- Clinical Research Centre, Medical University of Białystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland; (M.N.); (A.K.)
- Department of Endocrinology, Diabetology and Internal Medicine, Medical University of Białystok, M. Skłodowskiej-Curie 24a, 15-276 Białystok, Poland
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Jiang SB, Lu YS, Liu T, Li LM, Wang HX, Wu Y, Gao XH, Chen HD. UVA influenced the SIRT1-miR-27a-5p-SMAD2-MMP1/COL1/BCL2 axis in human skin primary fibroblasts. J Cell Mol Med 2020; 24:10027-10041. [PMID: 32790210 PMCID: PMC7520305 DOI: 10.1111/jcmm.15610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 06/10/2020] [Accepted: 06/17/2020] [Indexed: 12/21/2022] Open
Abstract
Both SIRT1 and UVA radiation are involved in cellular damage processes such as apoptosis, senescence and ageing. MicroRNAs (miRNAs) have been reported to be closely related to UV radiation, as well as to SIRT1. In this study, we investigated the connections among SIRT1, UVA and miRNA in human skin primary fibroblasts. Our results showed that UVA altered the protein level of SIRT1 in a time point–dependent manner. Using miRNA microarray, bioinformatics analysis, we found that knocking down SIRT1 could cause up‐regulation of miR‐27a‐5p and the latter could down‐regulate SMAD2, and these results were verified by qRT‐PCR or Western blot. Furthermore, UVA radiation (5 J/cm2), knocking down SIRT1 or overexpression of miR‐27a‐5p led to increased expression of MMP1, and decreased expressions of COL1 and BCL2. We also found additive impacts on MMP1, COL1 and BCL2 under the combination of UVA radiation + Sirtinol (SIRT1 inhibitor), or UVA radiation + miR‐27a‐5p mimic. SIRT1 activator resveratrol could reverse damage changes caused by UVA radiation. Besides, absent of SIRT1 or overexpression of miR‐27a‐5p increased cell apoptosis and induced cell arrest in G2/M phase. Taken together, these results demonstrated that UVA could influence a novel SIRT1‐miR‐27a‐5p‐SMAD2‐MMP1/COL1/BCL2 axis in skin primary fibroblasts, and may provide potential therapeutic targets for UVA‐induced skin damage.
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Affiliation(s)
- Shi-Bin Jiang
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
| | - Yan-Song Lu
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
| | - Tao Liu
- Department of Urinary Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Liang-Man Li
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang, China
| | - He-Xiao Wang
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
| | - Yan Wu
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
| | - Xing-Hua Gao
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
| | - Hong-Duo Chen
- Department of Dermatology, The First Hospital of China Medical University, Shenyang, China
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Zhao L, Cao J, Hu K, He X, Yun D, Tong T, Han L. Sirtuins and their Biological Relevance in Aging and Age-Related Diseases. Aging Dis 2020; 11:927-945. [PMID: 32765955 PMCID: PMC7390530 DOI: 10.14336/ad.2019.0820] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 08/20/2019] [Indexed: 12/18/2022] Open
Abstract
Sirtuins, initially described as histone deacetylases and gene silencers in yeast, are now known to have many more functions and to be much more abundant in living organisms. The increasing evidence of sirtuins in the field of ageing and age-related diseases indicates that they may provide novel targets for treating diseases associated with aging and perhaps extend human lifespan. Here, we summarize some of the recent discoveries in sirtuin biology that clearly implicate the functions of sirtuins in the regulation of aging and age-related diseases. Furthermore, human sirtuins are considered promising therapeutic targets for anti-aging and ageing-related diseases and have attracted interest in scientific communities to develop small molecule activators or drugs to ameliorate a wide range of ageing disorders. In this review, we also summarize the discovery and development status of sirtuin-targeted drug and further discuss the potential medical strategies of sirtuins in delaying aging and treating age-related diseases.
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Affiliation(s)
- Lijun Zhao
- 1Peking University Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Beijing, China
| | - Jianzhong Cao
- 2Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Kexin Hu
- 1Peking University Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Beijing, China
| | - Xiaodong He
- 2Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Dou Yun
- 1Peking University Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Beijing, China
| | - Tanjun Tong
- 1Peking University Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Beijing, China
| | - Limin Han
- 1Peking University Research Center on Aging, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Beijing, China
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Cai M, Shi Y, Zheng T, Hu S, Du K, Ren A, Jia X, Chen S, Wang J, Lai S. Mammary epithelial cell derived exosomal MiR-221 mediates M1 macrophage polarization via SOCS1/STATs to promote inflammatory response. Int Immunopharmacol 2020; 83:106493. [PMID: 32289739 DOI: 10.1016/j.intimp.2020.106493] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 03/31/2020] [Accepted: 04/06/2020] [Indexed: 01/10/2023]
Abstract
Lactational mastitis seriously alters the normal physiological function of mammary gland and activates the innate immune. Mammary epithelial cells (MECs) secret cytokines and regulate the function of immune system. However, the mechanism MECs mediated crosstalk with immune cells, such as macrophages, during mastitis is unclear. In this study, mouse mammary epithelial cells (HC11), treated with Lipoteichoic acid (LTA), and macrophages (RAW264.7) were used to mimic intercellular communication. Our results showed that exosomal miR-221 level was up-regulated and reached the peak at 12 h after infected by LTA. The expression of miR-211, CD11b protein and TNF-α mRNA were upregulated and the expression of CD206 protein and Arg-1 mRNA were inhibited in RAW264.7 treated with exosomes. In addition, miR-221 mimics and inhibitors enhanced and depressed HC11-derived exosomal miR-221 level, respectively. After treatment of Exo(mimic) in RAW264.7, the expression of CD11b protein and TNF-α mRNA were up-regulated, the expression of CD206 and Arg-1 mRNA were down-regulated. Additionally, Exo(inhibitor) enhanced CD206 protein and Arg-1 mRNA levels and inhibited CD11b protein and TNF-α mRNA levels. Furthermore, SOCS1 was identified to be a target gene of miR-221 by using Luciferase assays. And western blot assays showed that the expression of p-STAT1 and p-STAT3 were elevated and repressed, respectively. Taken together, we suggest that exosomal miR-221 promotes polarization of M1 macrophages via SOCS1, STAT1 and STAT3. And we reveal a novel crosstalk signaling pathway between mammary epithelial cells and macrophages in the process of inflammation.
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Affiliation(s)
- Mingcheng Cai
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China; College of Landscape Architecture and Life Science/Institute of Special Plants, Chongqing University of Arts and Sciences, Yongchuan, Chongqing 402160, China
| | - Yu Shi
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Tianhao Zheng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Shenqiang Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Kun Du
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Anyong Ren
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Xianbo Jia
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
| | - Shiyi Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Jie Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China
| | - Songjia Lai
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
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Manoel Alves J, Handerson Gomes Teles R, do Valle Gomes Gatto C, Muñoz VR, Regina Cominetti M, Garcia de Oliveira Duarte AC. Mapping Research in the Obesity, Adipose Tissue, and MicroRNA Field: A Bibliometric Analysis. Cells 2019; 8:E1581. [PMID: 31817583 PMCID: PMC6952878 DOI: 10.3390/cells8121581] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 02/07/2023] Open
Abstract
Recent studies have investigated the control of adipose tissue expansion and inflammatory process by microRNAs (miRNAs). These two processes are of great interest because both are associated with obesity and metabolic syndrome. However, despite the great relevance of the role of miRNAs in obesity and adipose tissue, no qualitative and quantitative analysis on the subject has been performed. Thus, we aimed to examine global research activity and current trends with respect to the interaction between obesity, adipose tissue and miRNAs through a bibliometric analysis. This research was performed on the Scopus database for publications containing miRNA, obesity, and adipose tissue keyword combinations. In total, 898 articles were analyzed and the most frequently occurring keywords were selected and clustered into three well-defined groups. As a result, first group of keywords pointed to the research area on miRNAs expressed in obesity-associated diseases. The second group demonstrated the regulation of the adipogenesis process by miRNAs, while the third group highlighted brown adipose tissue and thermogenesis as one of the latest global research trends related to the theme. The studies selected in this paper describe the expression and performance of different miRNAs in obesity and comorbidities. Most studies have focused on identifying miRNAs and signaling pathways associated with obesity, type 2 diabetes mellitus, and cardiovascular disease. Thus, the miRNA profile for these diseases may be used as biomarkers and therapeutic targets in the prevention and treatment of obesity-associated diseases.
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Affiliation(s)
- João Manoel Alves
- Department of Physical Education, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil;
| | - Ramon Handerson Gomes Teles
- Department of Gerontology, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil; (R.H.G.T.); (M.R.C.)
| | - Camila do Valle Gomes Gatto
- Laboratory of Biochemistry and Molecular Biology of Exercise, University of São Paulo (USP), São Paulo 05508-030, SP, Brazil;
| | - Vitor Rosetto Muñoz
- Laboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas (UNICAMP), Limeira 13484-350, SP, Brazil;
| | - Márcia Regina Cominetti
- Department of Gerontology, Federal University of São Carlos (UFSCar), São Carlos 13565-905, SP, Brazil; (R.H.G.T.); (M.R.C.)
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Gholami M, Larijani B, Zahedi Z, Mahmoudian F, Bahrami S, Omran SP, Saadatian Z, Hasani-Ranjbar S, Taslimi R, Bastami M, Amoli MM. Inflammation related miRNAs as an important player between obesity and cancers. J Diabetes Metab Disord 2019; 18:675-692. [PMID: 31890692 PMCID: PMC6915181 DOI: 10.1007/s40200-019-00459-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022]
Abstract
The growing trend in addition to their burden, prevalence, and death has made obesity and cancer two of the most concerning diseases worldwide. Obesity is an important risk factor for common types of cancers where the risk of some cancers is directly related to the obesity. Various inflammatory mechanisms and increased level of pro-inflammatory cytokines have been investigated in many previous studies, which play key roles in the pathophysiology and development of both of these conditions. On the other hand, in the recent years, many studies have individually focused on the biomarker's role and therapeutic targeting of microRNAs (miRNAs) in different types of cancers and obesity including newly discovered small noncoding RNAs (sncRNAs) which regulate gene expression and RNA silencing. This study is a comprehensive review of the main inflammation related miRNAs in obesity/obesity related traits. For the first time, the main roles of miRNAs in obesity related cancers have been discussed in response to the question raised in the following hypothesis; do the main inflammatory miRNAs link obesity with obesity-related cancers regarding their role as biomarkers? Graphical abstractConceptual design of inflammatory miRNAs which provide link between obesity and cancers.
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Affiliation(s)
- Morteza Gholami
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Zhila Zahedi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mahmoudian
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Samira Bahrami
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sima Parvizi Omran
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, 5th floor, Shariati Hospital, North Kargar Ave, Tehran, Iran
| | - Zahra Saadatian
- Department of Medical Genetics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shirin Hasani-Ranjbar
- Obesity and Eating Habits Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Taslimi
- Department of Gastroenterology, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Milad Bastami
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahsa M. Amoli
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, 5th floor, Shariati Hospital, North Kargar Ave, Tehran, Iran
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Palmitic Acid Induces MicroRNA-221 Expression to Decrease Glucose Uptake in HepG2 Cells via the PI3K/AKT/GLUT4 Pathway. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8171989. [PMID: 31828133 PMCID: PMC6885153 DOI: 10.1155/2019/8171989] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 08/23/2019] [Accepted: 10/04/2019] [Indexed: 02/06/2023]
Abstract
Obesity-related insulin resistance and high fatty acid concentrations occur during the development of type 2 diabetes mellitus. The role of high concentrations of plasma-free fatty acids is not fully understood. In this study, palmitic acid (PA, 0.8 mM for 24 h) induced the expression of miR-221 that bound to phosphoinositide 3-kinases (PI3K) mRNA to inhibit glucose uptake by HepG2 cells. Compared with controls, PA significantly decreased glucose uptake, increased insulin receptor substrate-2 (IRS-2) and miR-221 expression, and decreased phosphoinositide 3-kinase (PI3K), protein kinase B (AKT), and glucose transporter type 4 (GLUT4) mRNA expression. Luciferase reporter assay revealed that miR-221 binding inhibited PI3K expression. Transfection of HepG2 cells with an miR-221 mimic induced miR-221 expression and inhibited the PI3K/AKT pathway. PA decreased glucose uptake in HepG2 cells by inducing the expression of miR-221, which bound to PI3K mRNA and suppressed PI3K/AKT signaling. miR-221 may be a novel target for preventing and treating obesity-induced insulin resistance.
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Li X, Ballantyne LL, Yu Y, Funk CD. Perivascular adipose tissue-derived extracellular vesicle miR-221-3p mediates vascular remodeling. FASEB J 2019; 33:12704-12722. [PMID: 31469602 DOI: 10.1096/fj.201901548r] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Adipose tissue-secreted extracellular vesicles (EVs) containing microRNAs (miRNAs) convey intercellular message signaling. The biogenesis of EV-miRNAs from perivascular adipose tissue (PVAT) and their roles in intercellular communication in response to obesity-associated inflammation have not yet been fully explored. By feeding mice a high-fat diet for 16 wk, we established obesity-associated, chronic low-grade inflammation in PVAT, characterized as hypertrophy of perivascular adipocytes, decreased adipogenesis, and proinflammatory macrophage infiltration. We show that PVAT-derived EVs and their encapsulated miRNAs can be taken up into vascular smooth muscle cells (VSMCs) in vivo and in vitro. miR-221-3p is one of the highly enriched miRNAs in obese PVAT and PVAT-derived EVs. Transfer and direct overexpression of miR-221-3p dramatically enhances VSMC proliferation and migration. Peroxisome proliferator-activated receptor γ coactivator 1α is identified as a miR-221-3p target in VSMC phenotypic modulation. Obese mice secrete abundant miRNA-containing EVs, evoking inflammatory responses in PVAT and vascular phenotypic switching in abdominal aorta of lean mice. Local delivery of miR-221-3p mimic in femoral artery causes vascular dysfunction by suppressing the contractile genes in the arterial wall. Our findings provide an EV-miR-221-3p-mediated mechanism by which PVAT triggers an early-stage vascular remodeling in the context of obesity-associated inflammation.-Li, X., Ballantyne, L. L., Yu, Y., Funk, C. D. Perivascular adipose tissue-derived extracellular vesicle miR-221-3p mediates vascular remodeling.
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Affiliation(s)
- Xinzhi Li
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Laurel L Ballantyne
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Ying Yu
- Department of Pharmacology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Colin D Funk
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
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Penolazzi L, Bonaccorsi G, Gafà R, Ravaioli N, Gabriele D, Bosi C, Lanza G, Greco P, Piva R. SLUG/HIF1-α/miR-221 regulatory circuit in endometrial cancer. Gene 2019; 711:143938. [PMID: 31220580 DOI: 10.1016/j.gene.2019.06.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE The pathogenesis of endometrial cancer (EC) involves many regulatory pathways including transcriptional regulatory networks supported by transcription factors and microRNAs only in part known. The aim of this retrospective study was to explore the possible correlation in the EC microenvironment between master regulators of complex phenomena such as steroid responsiveness through estrogen receptor alpha (ERα) and progesterone receptor (PR), epithelial-to-mesenchymal transition (supported by SLUG transcription factor), hypoxia (with hypoxia inducible factor-1 alpha, HIF-1α), and obesity that has been recognized as a EC risk factor. METHODS Formalin-Fixed Paraffin-Embedded (FFPE) blocks from University of Ferrara Pathology Archive were used and allocated into 2 groups according to their immunohistochemical positivity to ERα and PR, distinguishing the samples with a more benign prognosis (ERα+/PR+) from those with a poorer prognosis (ERα-/PR-). Immunohistochemistry for HIF1-α and SLUG was also performed. Body mass index (BMI) was registered at the time of diagnosis: patients with BMI ≥ 30 kg/m2 were defined obese (OB). Total RNA was isolated for miR-221 analysis. RESULTS We showed a comparable percentage of HIF1-α and SLUG positive samples in the ERα+/PR+ and ERα-/PR- groups. However, the obesity factor impacted more in the ERα+/PR+ group since the ratio between OB and non-obese (NOB) patients with high expression of HIF1-α and SLUG was higher in ERα+/PR+ than in the ERα-/PR- group. miR-221 levels were significantly higher in the OB than NOB patients, and, also in this case, obesity impacted more in the ERα+/PR+ group. CONCLUSIONS A molecular circuit of mutual regulation between ERα, PR, HIF1-α, SLUG and miR-221 is feasible in the EC and was firstly suggested by our research. In this interplay miR-221 seems to be in a nodal point of the regulatory system that is particularly strengthened by the metabolic changes in obesity.
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Affiliation(s)
- Letizia Penolazzi
- Department of Biomedical and Specialty Surgical Sciences, University of Ferrara, Ferrara, Italy
| | - Gloria Bonaccorsi
- Section of Obstetrics and Gynecology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Roberta Gafà
- Section of Anatomic Pathology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Noemi Ravaioli
- Section of Obstetrics and Gynecology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Deborah Gabriele
- Section of Anatomic Pathology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Cristina Bosi
- Section of Anatomic Pathology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Giovanni Lanza
- Department of Medical Sciences, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Pantaleo Greco
- Section of Obstetrics and Gynecology, Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, S. Anna University Hospital, Via Aldo Moro, 8, 44124 Cona, Ferrara, Italy
| | - Roberta Piva
- Department of Biomedical and Specialty Surgical Sciences, University of Ferrara, Ferrara, Italy.
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Gong W, Li J, Wang Y, Meng J, Zheng G. miR-221 promotes lens epithelial cells apoptosis through interacting with SIRT1 and E2F3. Chem Biol Interact 2019; 306:39-46. [DOI: 10.1016/j.cbi.2019.03.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/15/2019] [Accepted: 03/25/2019] [Indexed: 11/29/2022]
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Alteration of miRNA-mRNA interactions in lymphocytes of individuals with schizophrenia. J Psychiatr Res 2019; 112:89-98. [PMID: 30870714 DOI: 10.1016/j.jpsychires.2019.02.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/17/2019] [Accepted: 02/26/2019] [Indexed: 12/11/2022]
Abstract
The aetiology of schizophrenia is complex, heterogeneous, and involves interplay of many genetic and environmental influences. While significant progress has been made in the understanding the common heritable component, we are still grappling with the genomic encoding of environmental risk. One class of molecule that has tremendous potential is miRNA. These molecules are regulated by genetic and environmental factors associated with schizophrenia and have a very significant impact on temporospatial patterns of gene expression. To better understand the relationship between miRNA and gene expression in the disorder we analysed these molecules in RNA isolated from peripheral blood mononuclear cells (PBMCs) obtained from an Australian cohort of 36 individuals with schizophrenia and 15 healthy controls using next-generation RNA sequencing. Significant changes in both mRNA and miRNA expression profiles were observed implicating important interaction networks involved in immune activity and development. We also observed sexual dimorphism, particularly in relation to variation in mRNA, with males showing significantly more differentially expressed genes. Interestingly, while we explored expression in lymphocytes, the systems biology of miRNA-mRNA interactions was suggestive of significant pleiotropy with enrichment of networks related to neuronal activity.
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Kosciuk T, Wang M, Hong JY, Lin H. Updates on the epigenetic roles of sirtuins. Curr Opin Chem Biol 2019; 51:18-29. [PMID: 30875552 DOI: 10.1016/j.cbpa.2019.01.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/09/2019] [Accepted: 01/25/2019] [Indexed: 12/18/2022]
Abstract
Sirtuins are a class of enzyme with NAD+-dependent protein lysine deacylase activities. They were initially discovered to regulate transcription and life span via histone deacetylase activities. Later studies expanded their activities to other proteins and acyl lysine modifications. Through deacylating various substrate proteins, they regulate many biological processes, including transcription, DNA repair and genome stability, metabolism, and signal transduction. Here, we review recent understandings of the epigenetic functions (broadly defined to include transcriptional, post-transcriptional regulation, and DNA repair) of mammalian sirtuins. Because of the important functions of sirtuins, their own regulation is of great interest and is also discussed.
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Affiliation(s)
- Tatsiana Kosciuk
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Miao Wang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Jun Young Hong
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA
| | - Hening Lin
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA; Howard Hughes Medical Institute, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853, USA.
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Peng J, Zhou Y, Hong Z, Wu Y, Cai A, Xia M, Deng Z, Yang Y, Song T, Xiong J, Wei H, Peng J. Maternal eicosapentaenoic acid feeding promotes placental angiogenesis through a Sirtuin-1 independent inflammatory pathway. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1864:147-157. [PMID: 30445165 DOI: 10.1016/j.bbalip.2018.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/21/2018] [Accepted: 11/11/2018] [Indexed: 12/13/2022]
Abstract
Maternal overnutrition or obesity is associated with a wide range of metabolic disorders and may impair placental angiogenesis. Previous studies have shown that n-3 polyunsaturated fatty acids (PUFA) promote fetal growth in both rodents and humans. Whether n-3 PUFA impacts on placental angiogenesis in vivo remains unclear. Sirtuin-1 (SIRT1) is a protein deacetylase that plays an important role in regulating inflammation and endothelial function. Little information is available on a putative role of SIRT1 in placental angiogenesis. The goal of this study was to examine the capability of eicosapentaenoic acid (EPA) to regulate angiogenesis and inflammation in SIRT1-deficient placentas. In the present study, male and female SIRT1+/- mice were mated overnight, then primiparous SIRT1+/- mice were fed a 60% kcal HFD or equienergy EPA diet (4.4% EPA-ethyl ester). We found that the EPA diet significantly improved maternal insulin sensitivity and decreased plasma levels of inflammatory factors IL-6 and TNFα concentration. Moreover, EPA treatment promoted fetus growth and placental angiogenesis, and inhibited the hypoxia inducible factor-1α(HIF1α) pathway. SIRT1 deficiency exhibited an opposite effect, leading to decrease in placental angiogenesis and fetal weight. No significant effect was observed between diet and genotype. Here, we reported for the first time that EPA treatment increased the expression of placental inflammatory genes and promoted translocation of NFκB into the nucleus. On the contrary, SIRT1-deficient placentas showed a decreased inflammation state. Together, these data demonstrate a previously unknown role of EPA to promote placental angiogenesis through a SIRT1 independent inflammatory pathway.
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Affiliation(s)
- Jie Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yuanfei Zhou
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhang Hong
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yinghui Wu
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Anle Cai
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mao Xia
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhao Deng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yang Yang
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Tongxing Song
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jia Xiong
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hongkui Wei
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jian Peng
- Department of Animal Nutrition and Feed Science, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, PR China.
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Peng Y, Zhang G, Tang H, Dong L, Gao C, Yang X, Peng Y, Xu Y. Influence of SIRT1 polymorphisms for diabetic foot susceptibility and severity. Medicine (Baltimore) 2018; 97:e11455. [PMID: 29995800 PMCID: PMC6076161 DOI: 10.1097/md.0000000000011455] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to explore the influence of sirtuin 1 (SIRT1) polymorphisms (rs12778366 and rs3758391) on diabetic foot (DF) susceptibility and severity in patients with type 2 diabetes mellitus (T2DM).This case-control study recruited 142 patients with DF, 148 patients with T2DM, and 148 healthy controls. SIRT1 gene polymorphisms were sequenced by polymerase chain reaction (PCR) and direct sequencing method. The relative expression of SIRT1 mRNA was estimated using quantitative real-time PCR (qRT-PCR) assay. Odds ratio (OR) with 95% confidence interval (95% CI) were used to represent the association of SIRT1 polymorphisms with DF susceptibility and severity. The results were adjusted using logistic regression analysis.C allele of rs12778366 polymorphism was significantly correlated with reduced DF susceptibility which deriving from healthy controls (adjusted OR = 0.364, 95% CI = 0.158-0.835) so was patients with T2DM (P = .047, OR = 0.591, 95%CI = 0.349-0.998), but the results became nonsignificant adjusted by clinical features (adjusted OR = 0.654, 95% CI = 0.391-1.094). We failed to find any significant association between rs3758391 polymorphisms and T2DM, DF susceptibility. No significant association has been discovered between SIRT1 polymorphisms and DF severity or characteristics. In addition, compared to healthy control and T2DM cases, patients with DF exhibited significant downregulation of SIRT1. The 2 studied polymorphisms had no effects on its gene expression (P > .05 for all).SIRT1 rs12778366 polymorphism C allele might act as a protective factor for DF onset.
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