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BinMowyna MN, AlFaris NA, Al-Sanea EA, AlTamimi JZ, Aldayel TS. Resveratrol attenuates against high-fat-diet-promoted non-alcoholic fatty liver disease in rats mainly by targeting the miR-34a/SIRT1 axis. Arch Physiol Biochem 2024; 130:300-315. [PMID: 35254877 DOI: 10.1080/13813455.2022.2046106] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/18/2022] [Indexed: 11/09/2022]
Abstract
This study evaluated if miR-34a/SIRT1 signalling mediates the anti-hepatosteatotic effect of resveratrol (RSV) in high-fat-diet (HFD)-fed rats. Rats were divided into seven groups (n = 6/each) as control, control + miR-34a agomir negative control, HFD, HFD + miR-34a, HFD + RSV, HFD + RSV + Ex-527 (a SIRT1 inhibitor), and HFD + RSV + miR-34a agomir. After 8 weeks, RSV suppressed dyslipidemia, lowered fasting glucose and insulin levels, improved insulin sensitivity, and prevented hepatic lipid accumulation. These effects were associated with hepatic downregulation of SREBP1 and SREBP2, upregulation of PPARα, and acetylation of Nrf2 (activation) and NF-κβ p65 (inhibition). Also, RSV reduced the transcription of miR-34a and increased the nuclear localisation of SIRT1 in the livers, muscles, and adipose tissues of HFD-fed rats. All these effects were prevented by EX-527 and miR-34a agmir. In conclusion, RSV prevents HFD-induced insulin resistance and hepatic steatosis by suppressing miR-34a-induced activation of SIRT1.
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Affiliation(s)
- Mona N BinMowyna
- College of Applied Medical Sciences, Shaqra University, Shaqra, Saudi Arabia
| | - Nora A AlFaris
- Department of Physical Sport Science, College of Education, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ekram A Al-Sanea
- Department of Biology, College of Sciences, Ibb University, Ibb, Yemen
| | - Jozaa Z AlTamimi
- Department of Physical Sport Science, College of Education, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Tahany S Aldayel
- Department of Physical Sport Science, College of Education, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
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2
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Ravegnini G, Gorini F, Coada CA, De Leo A, de Biase D, Di Costanzo S, De Crescenzo E, Coschina E, Monesmith S, Bernante P, Garelli S, Balsamo F, Hrelia P, De Iaco P, Angelini S, Perrone AM. miRNA levels are associated with body mass index in endometrial cancer and may have implications for therapy. Cancer Sci 2024; 115:883-893. [PMID: 38196275 PMCID: PMC10920998 DOI: 10.1111/cas.15977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 01/11/2024] Open
Abstract
Endometrial cancer (EC) is the most prevalent gynecological cancer in high-income countries. Its incidence is skyrocketing due to the increase in risk factors such as obesity, which represents a true pandemic. This study aimed to evaluate microRNA (miRNA) expression in obesity-related EC to identify potential associations between this specific cancer type and obesity. miRNA levels were analyzed in 84 EC patients stratified based on body mass index (BMI; ≥30 or <30) and nine noncancer women with obesity. The data were further tested in The Cancer Genome Atlas (TCGA) cohort, including 384 EC patients, 235 with BMI ≥30 and 149 with BMI <30. Prediction of miRNA targets and analysis of their expression were also performed to identify the potential epigenetic networks involved in obesity modulation. In the EC cohort, BMI ≥30 was significantly associated with 11 deregulated miRNAs. The topmost deregulated miRNAs were first analyzed in 84 EC samples by single miRNA assay and then tested in the TCGA dataset. This independent validation provided further confirmation about the significant difference of three miRNAs (miR-199a-5p, miR-449a, miR-449b-5p) in normal-weight EC patients versus EC patients with obesity, resulting significantly higher expressed in the latter. Moreover, the three miRNAs were significantly correlated with grade, histological type, and overall survival. Analysis of their target genes revealed that these miRNAs may regulate obesity-related pathways. In conclusion, we identified specific miRNAs associated with BMI that are potentially involved in modulating obesity-related pathways and that may provide novel implications for the clinical management of obese EC patients.
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Affiliation(s)
- Gloria Ravegnini
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
| | - Francesca Gorini
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
| | | | - Antonio De Leo
- Department of Medical and Surgical Sciences (DIMEC)University of BolognaBolognaItaly
- Solid Tumor Molecular Pathology LaboratoryIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Dario de Biase
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
- Solid Tumor Molecular Pathology LaboratoryIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Stella Di Costanzo
- Division of Oncologic GynecologyIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Eugenia De Crescenzo
- Department of Medical and Surgical Sciences (DIMEC)University of BolognaBolognaItaly
- Division of Oncologic GynecologyIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Emma Coschina
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
| | - Sarah Monesmith
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
| | - Paolo Bernante
- Division of Metabolic and Bariartric SurgeryIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Silvia Garelli
- Division of Endocrinology and Diabetes Prevention and CareIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Francesca Balsamo
- Division of Metabolic and Bariartric SurgeryIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Patrizia Hrelia
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
| | - Pierandrea De Iaco
- Department of Medical and Surgical Sciences (DIMEC)University of BolognaBolognaItaly
- Division of Oncologic GynecologyIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - Sabrina Angelini
- Department of Pharmacy and Biotechnology (FABIT)University of BolognaBolognaItaly
| | - Anna Myriam Perrone
- Department of Medical and Surgical Sciences (DIMEC)University of BolognaBolognaItaly
- Division of Oncologic GynecologyIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
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Saponaro C, Sabatini S, Gaggini M, Carli F, Rosso C, Positano V, Armandi A, Caviglia GP, Faletti R, Bugianesi E, Gastaldelli A. Adipose tissue dysfunction and visceral fat are associated with hepatic insulin resistance and severity of NASH even in lean individuals. Liver Int 2022; 42:2418-2427. [PMID: 35900229 DOI: 10.1111/liv.15377] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 07/01/2022] [Accepted: 07/25/2022] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Non-alcoholic fatty liver disease (NAFLD) is a heterogeneous disorder, but the factors that determine this heterogeneity remain poorly understood. Adipose tissue dysfunction is causally linked to NAFLD since it causes intrahepatic triglyceride (IHTG) accumulation through increased hepatic lipid flow, due to insulin resistance and pro-inflammatory adipokines release. While many studies in NAFLD have looked at total adiposity (i.e. mainly subcutaneous fat, SC-AT), it is still unclear the possible impact of visceral fat (VF). Thus, we investigated how VF versus SC-AT was related to NAFLD severity in lean, overweight and obese individuals versus lean controls. METHODS Thirty-two non-diabetic NAFLD with liver biopsy (BMI 21.4-34.7 kg/m2 ) and eight lean individuals (BMI 19.6-22.8 kg/m2 ) were characterized for fat distribution (VF, SC-AT and IHTG by magnetic resonance imaging), lipolysis and insulin resistance by tracer infusion, free fatty acids (FFAs) and triglyceride (TAG) concentration and composition (by mass spectrometry). RESULTS Intrahepatic triglyceride was positively associated with lipolysis, adipose tissue insulin resistance (Adipo-IR), TAG concentrations, and increased saturated/unsaturated FFA ratio. Compared to controls VF was higher in NAFLD (including lean individuals), increased with fibrosis stage and associated with insulin resistance in liver, muscle and adipose tissue, increased lipolysis and decreased adiponectin levels. Collectively, our results suggest that VF accumulation, given its location close to the liver, is one of the major risk factors for NAFLD. CONCLUSIONS These findings propose VF as an early indicator of NAFLD progression independently of BMI, which may allow for evidence-based prevention and intervention strategies.
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Affiliation(s)
- Chiara Saponaro
- Cardiometabolic Risk Unit, Institute of Clinical Physiology, CNR, Pisa, Italy.,University of Lille, CHU Lille, Inserm U1190, EGID, Lille, France
| | - Silvia Sabatini
- Cardiometabolic Risk Unit, Institute of Clinical Physiology, CNR, Pisa, Italy
| | - Melania Gaggini
- Cardiometabolic Risk Unit, Institute of Clinical Physiology, CNR, Pisa, Italy
| | - Fabrizia Carli
- Cardiometabolic Risk Unit, Institute of Clinical Physiology, CNR, Pisa, Italy
| | - Chiara Rosso
- Division of Gastroenterology and Hepatology and Laboratory of Diabetology, Department of Medical Sciences, University of Turin, Turin, Italy
| | | | - Angelo Armandi
- Division of Gastroenterology and Hepatology and Laboratory of Diabetology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Gian Paolo Caviglia
- Division of Gastroenterology and Hepatology and Laboratory of Diabetology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Riccardo Faletti
- Division of Gastroenterology and Hepatology and Laboratory of Diabetology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Elisabetta Bugianesi
- Division of Gastroenterology and Hepatology and Laboratory of Diabetology, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Amalia Gastaldelli
- Cardiometabolic Risk Unit, Institute of Clinical Physiology, CNR, Pisa, Italy
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Bazrgar M, Khodabakhsh P, Prudencio M, Mohagheghi F, Ahmadiani A. The role of microRNA-34 family in Alzheimer's disease: A potential molecular link between neurodegeneration and metabolic disorders. Pharmacol Res 2021; 172:105805. [PMID: 34371173 DOI: 10.1016/j.phrs.2021.105805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/27/2021] [Accepted: 08/05/2021] [Indexed: 02/09/2023]
Abstract
Growing evidence indicates that overexpression of the microRNA-34 (miR-34) family in the brain may play a crucial role in Alzheimer's disease (AD) pathogenesis by targeting and downregulating genes associated with neuronal survival, synapse formation and plasticity, Aβ clearance, mitochondrial function, antioxidant defense system, and energy metabolism. Additionally, elevated levels of the miR-34 family in the liver and pancreas promote the development of metabolic syndromes (MetS), such as diabetes and obesity. Importantly, MetS represent a well-documented risk factor for sporadic AD. This review focuses on the recent findings regarding the role of the miR-34 family in the pathogenesis of AD and MetS, and proposes miR-34 as a potential molecular link between both disorders. A comprehensive understanding of the functional roles of miR-34 family in the molecular and cellular pathogenesis of AD brains may lead to the discovery of a breakthrough treatment strategy for this disease.
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Affiliation(s)
- Maryam Bazrgar
- Neuroscience Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Pariya Khodabakhsh
- Department of Pharmacology, Shahid Beheshti University of Medical Science, Tehran, Iran
| | | | - Fatemeh Mohagheghi
- Institute of Experimental Hematology, Center for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, Germany
| | - Abolhassan Ahmadiani
- Neuroscience Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran.
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MiRNA-34c Regulates Bovine Sertoli Cell Proliferation, Gene Expression, and Apoptosis by Targeting the AXL Gene. Animals (Basel) 2021; 11:ani11082393. [PMID: 34438849 PMCID: PMC8388803 DOI: 10.3390/ani11082393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/31/2021] [Accepted: 08/06/2021] [Indexed: 11/18/2022] Open
Abstract
Simple Summary Fertility is one of the essential reproduction traits of bulls, and accurate prediction of fertility potential using a semen sample from a donor bull for artificial insemination is crucial to achieve consistently high reproductive efficiency. Somatic cells, such as Sertoli cells and Leydig cells, are important in testis formation and provide a nurturing and regulatory environment for spermatogenesis. Furthermore, it was suggested that non-coding RNAs, such as microRNAs, long non-coding RNAs, circular RNAs, and Piwi-interacting RNA, function as important regulators of gene expression at post-transcriptional level in spermatogenesis. In this study, microRNA-34c was verified to specifically regulate the AXL gene by targeting a sequence in the 3’ UTR; miRNA-34c can also influence the proliferation, apoptosis, and relative abundance of the transcript of male-reproduction-related genes. Therefore, microRNA-34c can be considered an essential regulator in the process of bull spermatogenesis. These results identify a key microRNA and functional genes in the process of cattle male reproduction, providing useful information for future marker-assisted selection of bulls with excellent sperm quality. Abstract MicroRNAs (miRNAs) play significant roles in mammalian spermatogenesis. Sertoli cells can provide a stable microenvironment and nutritional factors for germ cells, thus playing a vital role in spermatogenesis. However, few studies elucidate the regulation of bovine testicular Sertoli cells by miRNAs. Here, we have reported that miRNA-34c (miR-34c) regulates proliferation, apoptosis, and relative transcripts abundance gene in bovine Sertoli cells. In bovine Sertoli cells, overexpression of miR-34c inhibited proliferation and relative abundance of gene transcripts while promoting apoptosis of Sertoli cells, and the effects were the opposite when miR-34c was knocked down. Receptor tyrosine kinase (AXL) was identified as a direct target gene of miR-34c in Sertoli cells, validated by analysis of the relative abundance of AXL transcript and dual-luciferase reporter assay. The relative abundance of the transcript of genes related to male reproduction in Sertoli cells was changed after the AXL gene was overexpressed, as demonstrated by the RT2 Profiler PCR Array results. In summary, miR-34c specifically regulated the AXL gene by targeting a sequence in the 3′-UTR, which could influence proliferation, apoptosis, and relative abundance of the transcript of male reproduction-related genes. Therefore, miR-34c could be considered an essential regulator in the process of bull spermatogenesis.
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Wu T, Xie D, Zhao X, Xu M, Luo L, Deng D, Chen M. Enhanced Expression of miR-34c in Peripheral Plasma Associated with Diabetic Foot Ulcer in Type 2 Diabetes Patients. Diabetes Metab Syndr Obes 2021; 14:4263-4273. [PMID: 34703259 PMCID: PMC8526515 DOI: 10.2147/dmso.s326066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/25/2021] [Indexed: 04/20/2023] Open
Abstract
OBJECTIVE To explore the correlation between the expression of miR-34c in peripheral blood of patients with type 2 diabetes mellitus (T2DM) and the onset of diabetic foot ulcer (DFU) and diabetic foot osteomyelitis (DFO). METHODS Sixty newly diagnosed patients with T2DM without DFU (T2DM group), 112 T2DM patients with DFU (DFU group) and 60 controls with normal glucose tolerance (NC group). The DFU group patients were subdivided into DFO (n=64) and NDFO (n=48) groups. Quantitative real-time PCR (qRT-PCR) method was used to determine miR-34c expression levels in the peripheral blood of subjects to analyze the clinical characteristics of DFU and DFO risk factors. RESULTS MiR-34c expression level in the T2DM group was marked higher than the NC group [2.99 (1.45-6.22) vs 1.01 (0.89-1.52)] (P < 0.05). However, the expression level of miR-34c in the DFU group was significantly higher than the T2DM group [9.65 (6.15-18.63) vs 2.99 (1.45-6.22)] (P < 0.01). Compared with the NDFO group, the expression level of miR-34c in the DFO group was also obviously increased [13.46 (8.89-19.11) vs 6.02 (5.93-14.72)] (P < 0.01). The expression level of miR-34c in DFU patients was positively correlated with the amputation rate of foot ulcers (P=0.030) and was negatively correlated with the healing rate of foot ulcers after eight weeks (P=0.025). Multifactorial logistic regression analysis showed that increased expression of miR-34c was an independent risk factor for DFU and DFO (ORDFU=3.47, ORDFO=4.25, P < 0.01). Meanwhile, the ROC curve analysis indicated that the AUC of miR-34c for the diagnosis of DFU and DFO was 0.803 and 0.904, the optimum sensitivity being was 100% and 98.7%, the optimum specificity was 98.4% and 98.4%, respectively. CONCLUSION The increased expression of miR-34c in peripheral blood of T2DM patients is closely related to the occurrence, development and prognosis of DFU and DFO.
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Affiliation(s)
- Tingting Wu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Dandan Xie
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Xiaotong Zhao
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Murong Xu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Li Luo
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Datong Deng
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
| | - Mingwei Chen
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230032, People’s Republic of China
- Correspondence: Mingwei Chen Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, No. 218 Jixi Road, Hefei, Anhui, 230032, People’s Republic of China Email
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Fear Deficits in Hypomyelinated Tppp Knock-Out Mice. eNeuro 2020; 7:ENEURO.0170-20.2020. [PMID: 32878961 PMCID: PMC7540923 DOI: 10.1523/eneuro.0170-20.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 06/03/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022] Open
Abstract
Oligodendrocytes in the central nervous system (CNS) produce myelin sheaths that insulate axons to facilitate efficient electrical conduction. These myelin sheaths contain lamellar microtubules that enable vesicular transport into the inner sheath. Mechanistically, oligodendrocytes rely on Golgi outpost organelles and the associated protein tubulin polymerization promoting protein (TPPP) to nucleate or form new microtubules outside of the cell body. Consequently, elongation of lamellar microtubules is defective in Tppp knock-out (KO) mice, which have thinner and shorter myelin sheaths. We now explore the behavioral phenotypes of Tppp KO mice using a number of different assays. In open-field assays, Tppp KO mice display similar activity levels and movement patterns as wild-type mice, indicating that they do not display anxiety behavior. However, Tppp KO mice lack fear responses by two types of assays, traditional fear-conditioning assays and looming fear assays, which test for innate fear responses. Deficits in fear conditioning, which is a memory-dependent task, as well as in spatial memory tests, support possible short-term memory defects in Tppp KO mice. Together, our experiments indicate a connection between CNS myelination and behavioral deficits.
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