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Zhao Y, Ding ZG, Yan YJ, Yang R, Qi MM, Pan SK, Xie JL, Sun YH, Xiang J. Teadenol B as a Component of Microorganism-Fermented Tea Extract Inhibited Breast Cancers by Promoting Autophagy. Molecules 2024; 29:872. [PMID: 38398624 PMCID: PMC10892666 DOI: 10.3390/molecules29040872] [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: 01/18/2024] [Revised: 02/09/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Breast cancer is a significant threat to life and health, which needs more safe and effective drugs to be explored. Teadenol B is a characteristic chemical component of microbial fermented tea. This study discovered that teadenol B could exhibit obvious inhibitory effects on all four different clinical subtype characteristics of breast cancer cells. Proteomic studies show that deoxycytidine triphosphate deaminase (DCTD), which could block DNA synthesis and repair DNA damage, had the most significant and consistent reduction in all four types of breast cancer cells with the treatment of teadenol B. Considering MDA-MB-231 cells exhibit poor clinical prognosis and displayed substantial statistical differences in KEGG pathway enrichment analysis results, we investigated its impact on the size and growth of MDA-MB-231 triple-negative breast tumors transplanted into nude mice and demonstrated that teadenol B significantly suppressed tumor growth without affecting body weight significantly. Finally, we found that the conversion of LC3-I to LC3-II in MDA-MB-231 increased significantly with teadenol B treatment. This proved that teadenol B could be a strong autophagy promotor, which explained the down-regulation of DCTD to some extent and may be the potential mechanism underlying teadenol B's anti-breast cancer effects. This finding provides new evidence for drinking fermented tea to prevent breast cancer and highlights the potential of teadenol B as a novel therapeutic option for breast cancer prevention and treatment, necessitating further investigations to clarify its exact target and the details involved.
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Affiliation(s)
- Ying Zhao
- Ministry of Education Laboratory of Combinatorial Biosynthesis and Drug Discovery, School of Pharmaceutical Science, Wuhan University, Wuhan 430071, China; (Y.Z.); (Y.-J.Y.); (M.-M.Q.); (Y.-H.S.)
| | - Zhang-Gui Ding
- Pu-erh Tea Fermentation Engineering Research Center of Yunnan Province, Kunming 650271, China; (Z.-G.D.); (R.Y.); (S.-K.P.); (J.-L.X.)
- Key Laboratory of Pu-erh Tea Processing Technology, Ministry of Agriculture and Rural Affairs, Kunming 650271, China
- Yunnan Dayi Microbial Technology Co., Ltd., Kunming 650271, China
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming 650091, China
- Key Laboratory for Southwest Microbial Diversity of the Ministry of Education, Yunnan University, Kunming 650091, China
| | - Yu-Jie Yan
- Ministry of Education Laboratory of Combinatorial Biosynthesis and Drug Discovery, School of Pharmaceutical Science, Wuhan University, Wuhan 430071, China; (Y.Z.); (Y.-J.Y.); (M.-M.Q.); (Y.-H.S.)
| | - Rui Yang
- Pu-erh Tea Fermentation Engineering Research Center of Yunnan Province, Kunming 650271, China; (Z.-G.D.); (R.Y.); (S.-K.P.); (J.-L.X.)
- Key Laboratory of Pu-erh Tea Processing Technology, Ministry of Agriculture and Rural Affairs, Kunming 650271, China
- Yunnan Dayi Microbial Technology Co., Ltd., Kunming 650271, China
| | - Miao-Miao Qi
- Ministry of Education Laboratory of Combinatorial Biosynthesis and Drug Discovery, School of Pharmaceutical Science, Wuhan University, Wuhan 430071, China; (Y.Z.); (Y.-J.Y.); (M.-M.Q.); (Y.-H.S.)
| | - Shu-Kang Pan
- Pu-erh Tea Fermentation Engineering Research Center of Yunnan Province, Kunming 650271, China; (Z.-G.D.); (R.Y.); (S.-K.P.); (J.-L.X.)
- Key Laboratory of Pu-erh Tea Processing Technology, Ministry of Agriculture and Rural Affairs, Kunming 650271, China
- Yunnan Dayi Microbial Technology Co., Ltd., Kunming 650271, China
| | - Ji-Ling Xie
- Pu-erh Tea Fermentation Engineering Research Center of Yunnan Province, Kunming 650271, China; (Z.-G.D.); (R.Y.); (S.-K.P.); (J.-L.X.)
- Key Laboratory of Pu-erh Tea Processing Technology, Ministry of Agriculture and Rural Affairs, Kunming 650271, China
- Yunnan Dayi Microbial Technology Co., Ltd., Kunming 650271, China
| | - Yu-Hui Sun
- Ministry of Education Laboratory of Combinatorial Biosynthesis and Drug Discovery, School of Pharmaceutical Science, Wuhan University, Wuhan 430071, China; (Y.Z.); (Y.-J.Y.); (M.-M.Q.); (Y.-H.S.)
| | - Jin Xiang
- Ministry of Education Laboratory of Combinatorial Biosynthesis and Drug Discovery, School of Pharmaceutical Science, Wuhan University, Wuhan 430071, China; (Y.Z.); (Y.-J.Y.); (M.-M.Q.); (Y.-H.S.)
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Balogun KA, Guzman Lenis MS, Papp E, Loutfy M, Yudin MH, MacGillivray J, Walmsley SL, Silverman M, Serghides L. Elevated Levels of Estradiol in Human Immunodeficiency Virus-Infected Pregnant Women on Protease Inhibitor-Based Regimens. Clin Infect Dis 2019; 66:420-427. [PMID: 29020282 DOI: 10.1093/cid/cix761] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/21/2017] [Indexed: 01/30/2023] Open
Abstract
Background Human immunodeficiency virus (HIV)-infected pregnant women on protease inhibitor (PI)-based combination antiretroviral therapy (cART) have a greater risk for adverse birth outcomes, and an association with steroid hormone levels has been implicated. The objective of this study was to investigate the association between PI-cART and estradiol levels in pregnancy. Methods Fifty-five HIV-infected and 49 HIV-uninfected Canadian pregnant women were followed prospectively throughout gestation. All HIV-infected women were on a PI-based cART regimen. Maternal plasma samples were collected at 12-18 weeks, 24-28 weeks, 34-38 weeks, at delivery, and from the cord. Birth outcomes were recorded. Levels of estradiol, dehydroepiandrosterone sulfate (DHEAS), sex hormone-binding globulin (SHBG), cortisol, and adrenocorticotropic hormone (ACTH) were quantified by enzyme-linked immunosorbent assay. Results (median [interquartile range] for cord estradiol: 23.9 ng/mL [16.4-36.4] for HIV-infected exposed to PI-cART and 15.7 ng/mL [12.2-21.2] for HIV-negative; P = .0025). HIV-infected women had higher DHEAS levels in cord plasma that correlated with cord and maternal delivery estradiol levels. Cortisol and ACTH levels did not differ between groups. In the HIV-infected women, cord estradiol levels correlated negatively with birth weight centile (r = -0.47, P = .0016). Conclusions Our data suggest that PI-cART exposure in pregnancy is associated with elevated levels of estradiol, likely driven by higher fetal DHEAS production. Cord estradiol levels were inversely correlated with birth weight centile in infants born to PI-cART-exposed women, suggesting that fetal exposure to high estradiol levels may be contributing to cART-associated fetal growth restriction.
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Affiliation(s)
- Kayode A Balogun
- Toronto General Research Institute, University Health Network, Canada
| | | | - Eszter Papp
- Toronto General Research Institute, University Health Network, Canada
| | - Mona Loutfy
- Women's College Research Institute, Women's College Hospital, Canada.,Department of Medicine, University of Toronto, Canada.,St Michael's Hospital, Canada
| | - Mark H Yudin
- Department of Medicine, University of Toronto, Canada.,St Michael's Hospital, Canada.,Department of Obstetrics and Gynaecology, University of Toronto, Canada
| | | | - Sharon L Walmsley
- Toronto General Research Institute, University Health Network, Canada.,Department of Medicine, University of Toronto, Canada
| | | | - Lena Serghides
- Toronto General Research Institute, University Health Network, Canada.,Women's College Research Institute, Women's College Hospital, Canada.,Department of Immunology and Institute of Medical Sciences, University of Toronto, Canada
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McDonald CR, Conroy AL, Gamble JL, Papp E, Hawkes M, Olwoch P, Natureeba P, Kamya M, Silverman M, Cohan D, Koss CA, Dorsey G, Kain KC, Serghides L. Estradiol Levels Are Altered in Human Immunodeficiency Virus-Infected Pregnant Women Randomized to Efavirenz-Versus Lopinavir/Ritonavir-Based Antiretroviral Therapy. Clin Infect Dis 2019; 66:428-436. [PMID: 29136115 DOI: 10.1093/cid/cix772] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/23/2017] [Indexed: 11/13/2022] Open
Abstract
Background Combination antiretroviral therapy (cART) use in pregnancy has been associated with hormonal dysregulation. We performed a secondary retrospective analysis of longitudinal progesterone and estradiol levels in pregnancy using specimens from the Protease Inhibitors to Reduce Malaria Morbidity in HIV-infected Pregnant Women study, which randomized Ugandan human immunodeficiency virus (HIV)-infected ART-naive women to initiate either lopinavir/ritonavir (LPV/r)-based or efavirenz (EFV)-based cART. Methods Three hundred twenty-six women (160 randomized to the EFV arm and 166 women to the LPV/r arm) with at least 1 plasma sample collected during pregnancy were included. Enrollment samples collected prior to cART initiation were used as a cART-naive comparator group. Hormone levels were quantified by enzyme-linked immunosorbent assay. Results Estradiol levels were differentially affected by the 2 cART regimens. Exposure to LPV/r was associated with an increase in estradiol (P < .0001), whereas exposure to EFV was associated with a decrease in estradiol (P < .0001), relative to the cART-naive gestationally matched comparator group. Lower estradiol levels correlated with small for gestational age (SGA) (P = .0019) and low birth weight (P = .019) in the EFV arm, while higher estradiol levels correlated with SGA in the LPV/r arm (P = .027). Although progesterone levels were similar between treatment arms, we observed an association between SGA and lower progesterone in the LPV/r arm (P = .04). No association was observed between hormone levels and preterm birth in either arm. Levels of progesterone and estradiol were lower in cases of stillbirth, and levels of both hormones declined immediately prior to stillbirth in 5 of 8 cases. Conclusions Combination ART regimens differentially affect estradiol levels in pregnancy, a hormone critical to the maintenance of a healthy pregnancy. Identifying cART regimens that minimize perinatal HIV transmission without contributing to hormonal dysregulation represents an urgent public health priority. Clinical Trials Registration NCT00993031.
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Affiliation(s)
- Chloe R McDonald
- SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, Canada.,Institute of Medical Science, University of Toronto, Canada
| | - Andrea L Conroy
- SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, Canada.,Institute of Medical Science, University of Toronto, Canada
| | - Joel L Gamble
- SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, Canada
| | - Eszter Papp
- SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, Canada.,Institute of Medical Science, University of Toronto, Canada
| | - Michael Hawkes
- Department of Pediatrics, University of Alberta, Edmonton, Canada
| | - Peter Olwoch
- Makerere University-University of California, San Francisco Research Collaboration, Kampala, Uganda
| | - Paul Natureeba
- Makerere University-University of California, San Francisco Research Collaboration, Kampala, Uganda
| | - Moses Kamya
- Makerere University-University of California, San Francisco Research Collaboration, Kampala, Uganda
| | | | - Deborah Cohan
- Department of Obstetrics and Gynecology, University of California, San Francisco
| | | | - Grant Dorsey
- Makerere University-University of California, San Francisco Research Collaboration, Kampala, Uganda.,Department of Medicine, University of California, San Francisco
| | - Kevin C Kain
- SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, Canada.,Institute of Medical Science, University of Toronto, Canada.,Tropical Disease Unit, Division of Infectious Diseases, Department of Medicine, University of Toronto
| | - Lena Serghides
- SAR Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, Canada.,Toronto General Research Institute, Toronto General Hospital, Canada.,Department of Immunology, University of Toronto, Canada
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Yang Q, Wang C, Jin Y, Ma X, Xie T, Wang J, Liu K, Sun H. Disocin prevents postmenopausal atherosclerosis in ovariectomized LDLR-/- mice through a PGC-1α/ERα pathway leading to promotion of autophagy and inhibition of oxidative stress, inflammation and apoptosis. Pharmacol Res 2019; 148:104414. [PMID: 31449974 DOI: 10.1016/j.phrs.2019.104414] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 08/04/2019] [Accepted: 08/22/2019] [Indexed: 12/26/2022]
Abstract
Atherosclerosis (AS) is one of the major causes leading to mortality of dysfunctional cardiovascular events in the menopausal women, which has long-term deficiency of estrogen. At present, the primary treatment for postmenopausal AS is hormone replacement therapy (HRT). However, it can increase the risks of ovarian and uterine cancers with long-term therapy. So seeking for a phytoestrogen which can overcome the disadvantages of HRT is a great mission. Dioscin, a traditional Chinese medicine, extracted from the roots of dioscorea nipponica, has anti-inflammatory, anti-tumor and anti-apoptosis activities. Especially, it also has estrogenic activity. Thus, this study aims to investigate the effects of dioscin on postmenopausal AS. Currently, ovariectomy (OVX) is the accepted model for AS associated with estrogen deficiency, and it can mimic the cessation of ovarian function that occurs in postmenopausal women as well. We used the high fat diet and ovariectomy(HFD-OVX)model to induce postmenopausal AS in the low-density lipoprotein receptor- deficient (LDLR-/-) mice. (1) The levels of TG, TC, LDL-C, HDLC, MDA, GSH, MDA and GSH in serum of HFD-OVX induced LDLR-/- mice were measured by colorimetric assay. (2) The artery injury of HFD-OVX induced LDLR-/- mice was detected with Oil Red O staining. (3) The protein expressions of NOX4, P22phox, IκB, p-p65, n-p65, ICAM-1, VCAM-1, caspase-3, caspase-9, bcl-2, PGC-1α, ERα, ERβ in the arterial tissue of HFD-OVX induced LDLR-/- mice were detected by Western blot analysis. In vitro, the model of human aortic endothelial cells (HAECs) induced by oxidized low-density lipoprotein (ox-LDL) (150 μg /ml) was established, and the molecular mechanism of dioscin on atherosclerosis in postmenopausal women was investigated. (1) The levels of MDA, GSH, MDA and GSH in ox-LDL induced HAECs were measured by colorimetric assay. (2) Reactive Oxygen Species (ROS) of ox-LDL induced HAEC cells was detected by fluorescence staining. (3) The protein expressions of PGC-1α, ERα, ERβ, NOX4, P22phox, IκB, p-p65, n-p65, ICAM-1, VCAM-1, caspase-3, caspase-9, bcl-2 and LC3 in ox-LDL induced HAECs were detected by Western blot analysis. (4) The autophagy level of ox-LDL induced HAECs was measured by transmission electron microscopy. (5) The applications of si-RNA transfection were used to explore whether dioscin could activate PGC-1α/ERα pathway to inhibit postmenopausal atherosclerosis. In vivo, we found that dioscin decreased the level of TG, TC, LDL-C and increased the level of HDLC in serum of HFD-OVX induced LDLR-/- mice, and it has protective effects to maintain the lipid homeostasis; The Oil Red O staining study showed that dioscin could significantly inhibit the formation of atherosclerotic plaques in HFD-OVX-treated LDLR-/- mice; Dioscin decreased the levels of NOX4, P22phox, p-p65, n-p65, ICAM-1, VCAM-1, caspase-3, caspase-9, but increased the levels of HDL-C, GSH, SOD, PGC-1α, ERα, ERβ, IκB, Bcl-2 and elevated the autophagy level in arterial tissues of HFD-OVX induced LDLR-/- mice. It is particularly worth mentioning that the up-regulating effect of dioscin on ERα is stronger than ERβ in OVX treated mice. In vitro, the results of colorimetric assay showed that dioscin decreased the level of MDA and LDH, increased the level of SOD and GSH in ox-LDL-induced HAEC cells; Dioscin also suppressed the release of ROS in ox-LDL-induced HAECs by fluorescence staining; Dioscin decreased the levels of NOX4, P22phox, p-p65, n-p65, ICAM-1, VCAM-1, caspase-3, caspase-9, but increased the levels of PGC-1α, ERα, ERβ, IκB, Bcl-2 and the ratio of LC3-II/LC3-I in ox-LDL-induced HAECs; Dioscin significantly elevated the autophagy level of ox-LDL-induced HAECs by transmission electron microscopy analysis; In addition, by si-RNA transfection, we found that the inhibitory effects of dioscin on oxidative stress, inflammatory response and apoptosis might partly through PGC-1α/ERα pathway in ox-LDL induced HAECs. The data of dual-Luciferase reporter assay revealed that dioscin activated ERα at least partly through PGC-1α pathway. Dioscin significantly inhibited oxidative stress, inflammatory response, apoptosis and increased the level of autophagy in vivo and vitro. In addition, dioscin could regulate the balance of lipid metabolism. Moreover, we proved that the effects of dioscin attenuating postmenopausal atherosclerosis by inhibiting oxidative stress, inflammation and apoptosis were partly dependent on PGC-1α/ERα pathway. Therefore, dioscin, as a phytoestrogen, might become a drug for the treatment of atherosclerosis in postmenopausal women.
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Affiliation(s)
- Qining Yang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yue Jin
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Xiaodong Ma
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Tianqi Xie
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Jiaying Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Kexin Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China; Academy of Integrative Medicine, Dalian Medical University, Dalian, China.
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Abstract
: Transgender women have recently been acknowledged as a unique and important risk group in HIV research and care. Although transgender men also face specific problems related to HIV infection, less is known about the risk behaviours and HIV prevalence of this important population. This article highlights key issues relating to the epidemiology, prevention, treatment and management of complications of HIV infection in transgender adults living with HIV, and explores future areas for HIV-related research, with the ultimate goal of improving healthcare provision and quality of life for transgender persons worldwide.
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Affiliation(s)
- Jordan E Lake
- University of Texas Health Science Center at Houston, Houston, Texas
| | - Jesse L Clark
- David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, California, USA
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Arrive E, Viard JP, Salanave B, Dollfus C, Matheron S, Reliquet V, Arezes E, Nailler L, Vigouroux C, Warszawski J. Metabolic risk factors in young adults infected with HIV since childhood compared with the general population. PLoS One 2018; 13:e0206745. [PMID: 30408056 PMCID: PMC6226109 DOI: 10.1371/journal.pone.0206745] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 10/18/2018] [Indexed: 02/05/2023] Open
Abstract
AIM Metabolic risk factors are poorly documented for the first generation of young adults who have lived with HIV since childhood. We compared their metabolic profile with that of adults of same age from the general population. METHODS We conducted a cross-sectional analysis of data from two populations: (1) COVERTE (ANRS-CO19), a French national cohort of 18 to 30-year-old patients HIV-infected since childhood, and (2) ENNS, a national cross-sectional population-based household survey on nutrition. Body mass index (BMI), blood pressure, waist circumference, fasting glucose, triglycerides, and HDL-, LDL- and total cholesterol were measured in both studies. Direct standardization on overweight and education level and logistic regression were used to compare the prevalence of metabolic abnormalities between the two populations. RESULTS Data from 268 patients from COVERTE and 245 subjects from ENNS were analyzed. Tobacco use was similar in both groups. HIV-infected patients had increased mean waist-to-hip ratio and triglycerides to HDL-cholesterol ratio and decreased mean HDL-cholesterol as compared to their counterparts from the general population in both genders. In HIV-infected patients, metabolic syndrome was identified in 13.2% of men (95% confidence interval [CI]: 7.1-19.2) and 10.4% (95% CI: 5.4-15.3) of women versus 10.6% (95%CI: 1.5-19.7) and 1.7% (95%CI: 0-4.1) in subjects from the general population, respectively. CONCLUSION Young adults infected with HIV since childhood had a higher prevalence of dyslipidemia and metabolically detrimental fat distribution than adults of same age of the general population, supporting close monitoring for cardiometabolic diseases.
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Affiliation(s)
- Elise Arrive
- Inserm, Center for Research in Epidemiology and Population Health, Paris, France
- Unité de Formation et de Recherche d’Odontologie, Université de Bordeaux, France
- Centre Hospitalier Universitaire de Bordeaux, France
- * E-mail: (EA); (CV)
| | - Jean-Paul Viard
- Centre de Diagnostic et de Thérapeutique, Hôtel-Dieu, Assistance Publique-Hôpitaux de Paris, Paris, France
- Unité de Recherche EA 7327, Faculté de Médecine Paris Descartes, Paris, France
| | - Benoît Salanave
- Equipe de Surveillance et d’Epidémiologie Nutritionnelle (ESEN), Santé publique France, Université Paris-13, Centre de recherche en épidémiologie et statistiques COMUE Sorbonne Paris Cité, Bobigny, France
| | - Catherine Dollfus
- Pediatric Hemato-Oncology,Hopital Trousseau, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Sophie Matheron
- Hopital Bichat-Claude Bernard, Assistance Publique-Hôpitaux de Paris, Paris, France
- Unité Mixte de Recherche 1137, INSERM, Université Paris 7, Paris, France
| | - Véronique Reliquet
- Department of Infectious Diseases and CIC UIC 1413 INSERM, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Elisa Arezes
- Inserm, Center for Research in Epidemiology and Population Health, Paris, France
| | - Laura Nailler
- Inserm, Center for Research in Epidemiology and Population Health, Paris, France
| | - Corinne Vigouroux
- Sorbonne Université, Inserm Unité Mixte de RechercheS 938, Saint-Antoine Research Centre, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
- Assistance Publique-Hôpitaux de Paris, Saint-Antoine Hospital, Biology and Molecular Genetics and Endocrinology Departments, National Reference Center for Rare Diseases of Insulin Secretion and Insulin Sensitivity, Paris, France
- * E-mail: (EA); (CV)
| | - Josiane Warszawski
- Inserm, Center for Research in Epidemiology and Population Health, Paris, France
- Université Paris-Sud, Le Kremlin-Bicêtre, France
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
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7
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Yang Z, Xie L, Han L, Qu X, Yang Y, Zhang Y, He Z, Wang Y, Li J. Circular RNAs: Regulators of Cancer-Related Signaling Pathways and Potential Diagnostic Biomarkers for Human Cancers. Theranostics 2017; 7:3106-3117. [PMID: 28839467 PMCID: PMC5566109 DOI: 10.7150/thno.19016] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 05/07/2017] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are newly discovered endogenous non-coding RNAs featuring structural stability, high abundance, and tissue-specific expression. CircRNAs are prevalent and conserved in mammalian cells. They are involved in cellular processes and regulate gene expression at the transcriptional or post-transcriptional level by interacting with microRNAs (miRNAs) and other molecules. Recent studies have shown that circRNAs play an important role in the progression of various human diseases including atherosclerosis, nervous system disorders, diabetes, and cancer. In this review, we summarize the advances on endogenous circRNAs in eukaryotic cells and elucidate their diagnostic and prognostic significance in human cancers. Especially, we highlight the involvement of circRNAs in signal transduction pathways as well as their clinical potential to serve as biomarkers.
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8
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Affiliation(s)
- Jennifer Cocohoba
- Department of Clinical Pharmacy, School of Pharmacy, University of California San Francisco, San Francisco, CA
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9
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Min J, Weitian Z, Peng C, Yan P, Bo Z, Yan W, Yun B, Xukai W. Correlation between insulin-induced estrogen receptor methylation and atherosclerosis. Cardiovasc Diabetol 2016; 15:156. [PMID: 27832775 PMCID: PMC5105242 DOI: 10.1186/s12933-016-0471-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 10/26/2016] [Indexed: 01/30/2023] Open
Abstract
Background Hyperinsulinemia and insulin resistance have been recently recognized as an important cause of atherosclerosis. Clinical studies have also found that expression of the estrogen receptor is closely related to the incidence of atherosclerosis. This study investigate the effects of insulin and estrogen receptor α (ER-α) in atherosclerosis. Methods Double knockout ApoE/Lepr mice were given intraperitoneal injections of insulin, and their aortae were harvested for hematoxylin-eosin staining and immunohistochemical analysis. In addition, vascular smooth muscle cells (VSMCs) were treated with insulin or infected with a lentivirus encoding exogenous ER-α, and changes in gene expression were detected by real-time polymerase chain reaction and western blotting. The methylation levels of the ER-α gene were tested using bisulfite sequencing PCR, and flow cytometry and EdU assay were used to measure VSMCs proliferation. Results Our results showed that insulin can induce the formation of atherosclerosis. Gene expression analysis revealed that insulin promotes the expression of DNA methyltransferases and inhibits ER-α expression, while 5-aza-2′-deoxycytidine can inhibit this effect of insulin. Bisulfite sequencing PCR analysis showed that methylation of the ER-α second exon region increased in VSMCs treated with insulin. The results also showed that ER-α can inhibit VSMCs proliferation. Conclusions Our data suggest that insulin promotes the expression of DNA methyltransferases, induces methylation of ER-α second exon region and decreases the expression of ER-α, thereby interfering with estrogen regulation of VSMCs proliferation, resulting in atherosclerosis. Electronic supplementary material The online version of this article (doi:10.1186/s12933-016-0471-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jia Min
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Zhong Weitian
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Cai Peng
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Peng Yan
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, 400042, China
| | - Zhang Bo
- Department of Medical Genetics, College of Basic Medicine, Third Military, Medical University, Chongqing, 400038, China
| | - Wang Yan
- Department of Medical Genetics, College of Basic Medicine, Third Military, Medical University, Chongqing, 400038, China
| | - Bai Yun
- Department of Medical Genetics, College of Basic Medicine, Third Military, Medical University, Chongqing, 400038, China.
| | - Wang Xukai
- Department of Cardiology, Daping Hospital, Third Military Medical University, Chongqing, 400042, China.
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10
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Abstract
Nuclear receptors sense a wide range of steroids and hormones (estrogens, progesterone, androgens, glucocorticoid, and mineralocorticoid), vitamins (A and D), lipid metabolites, carbohydrates, and xenobiotics. In response to these diverse but critically important mediators, nuclear receptors regulate the homeostatic control of lipids, carbohydrate, cholesterol, and xenobiotic drug metabolism, inflammation, cell differentiation and development, including vascular development. The nuclear receptor family is one of the most important groups of signaling molecules in the body and as such represent some of the most important established and emerging clinical and therapeutic targets. This review will highlight some of the recent trends in nuclear receptor biology related to vascular biology.
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Affiliation(s)
- David Bishop-Bailey
- Comparative Biomedical Sciences, The Royal Veterinary College, Royal College Street, London, NW1 0TU, UK,
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