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Nourmahnad A, Javad Shariyate M, Khak M, Grinstaff MW, Nazarian A, Rodriguez EK. Relaxin as a treatment for musculoskeletal fibrosis: What we know and future directions. Biochem Pharmacol 2024; 225:116273. [PMID: 38729446 PMCID: PMC11179965 DOI: 10.1016/j.bcp.2024.116273] [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: 01/05/2024] [Revised: 04/23/2024] [Accepted: 05/07/2024] [Indexed: 05/12/2024]
Abstract
Fibrotic changes in musculoskeletal diseases arise from the abnormal buildup of fibrotic tissue around the joints, leading to limited mobility, compromised joint function, and diminished quality of life. Relaxin (RLX) attenuates fibrosis by accelerating collagen degradation and inhibiting excessive extracellular matrix (ECM) production. Further, RLX disrupts myofibroblast activation by modulating the TGF-β/Smads signaling pathways, which reduces connective tissue fibrosis. However, the mechanisms and effects of RLX in musculoskeletal pathologies are emerging as increasing research focuses on relaxin's impact on skin, ligaments, tendons, cartilage, joint capsules, connective tissues, and muscles. This review delineates the actions of relaxin within the musculoskeletal system and the challenges to its clinical application. Relaxin shows significant potential in both in vivo and in vitro studies for broadly managing musculoskeletal fibrosis; however, challenges such as short biological half-life and sex-specific responses may pose hurdles for clinical use.
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Affiliation(s)
| | - Mohammad Javad Shariyate
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Mohammad Khak
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | | | - Ara Nazarian
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Orthopaedic Surgery, Yerevan State Medical University, Yerevan, Armenia
| | - Edward K Rodriguez
- Musculoskeletal Translational Innovation Initiative, Carl J. Shapiro Department of Orthopaedic Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Ozhogin IV, Zolotukhin PV, Makarova NI, Rostovtseva IA, Pugachev AD, Kozlenko AS, Belanova AA, Borodkin GS, Dorogan IV, Metelitsa AV. Meta-stable state photoacid containing β-estradiol fragment with photomodulated biological activity and anti-cancer stem cells properties. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 257:112964. [PMID: 38943711 DOI: 10.1016/j.jphotobiol.2024.112964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/06/2024] [Accepted: 06/19/2024] [Indexed: 07/01/2024]
Abstract
Photopharmacology is a young and rapidly developing field of research that offers significant potential for new insights into targeted therapy. While it primarily focuses on cancer treatment, it also holds promise for other diseases. The key feature of photopharmacological agents is the presence of a photosensitive and biologically active component in the same molecule. In our current study, we synthesized a spiropyran-based meta-stable state photoacid containing a fragment of β-estradiol. This compound exhibits negative photochromism and photocontrolled fluorescence under visible-light irradiation due to the initial stabilization of its self-protonated form in solution. We conducted comprehensive biological studies on the HeLa cells model to assess the short- and long-term cytotoxicity of the photoacid, its metabolic effects, its influence on signaling and epithelial-mesenchymal transition super-system pathways, and the proportion of the population enriched with cancer stem cells. Our findings reveal that this derivative demonstrates low cytotoxicity to HeLa cells, yet it is capable of dramatically reducing malignant cells side population enriched in cancer stem cells. Additionally, appropriate structural modification lead to an increase in some other biological effects compared to β-estradiol. In particular, our substance possesses rare properties of AP-1 suppression and demonstrates some pro-oxidant and metabolic effects, which can be regulated by visible light irradiation. As a result, the new estradiol-based photoacid may be considered a promising multi-acting photopharmacological agent for the next-generation anti-cancer research & development.
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Affiliation(s)
- Ilya V Ozhogin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation.
| | - Peter V Zolotukhin
- Bioinn, LLC, 37 Sodruzhestva st., 344103 Rostov-on-Don, Russian Federation
| | - Nadezhda I Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Irina A Rostovtseva
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Artem D Pugachev
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Anastasia S Kozlenko
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Anna A Belanova
- Bioinn, LLC, 37 Sodruzhestva st., 344103 Rostov-on-Don, Russian Federation
| | - Gennady S Borodkin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Igor V Dorogan
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
| | - Anatoly V Metelitsa
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka ave., 344090 Rostov-on-Don, Russian Federation
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Wang X, Kong F, Liu Y, Lv S, Zhang K, Sun S, Liu J, Wang M, Cai X, Jin H, Yan S, Luo J. 17β-estradiol biosensors based on different bioreceptors and their applications. Front Bioeng Biotechnol 2024; 12:1347625. [PMID: 38357703 PMCID: PMC10864596 DOI: 10.3389/fbioe.2024.1347625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/16/2024] [Indexed: 02/16/2024] Open
Abstract
17β-Estradiol (E2) is a critical sex steroid hormone, which has significant effects on the endocrine systems of both humans and animals. E2 is also believed to play neurotrophic and neuroprotective roles in the brain. Biosensors present a powerful tool to detect E2 because of their small, efficient, and flexible design. Furthermore, Biosensors can quickly and accurately obtain detection results with only a small sampling amount, which greatly meets the detection of the environment, food safety, medicine safety, and human body. This review focuses on previous studies of biosensors for detecting E2 and divides them into non-biometric sensors, enzyme biosensors, antibody biosensors, and aptamer biosensors according to different bioreceptors. The advantages, disadvantages, and design points of various bioreceptors for E2 detection are analyzed and summarized. Additionally, applications of different bioreceptors of E2 detection are presented and highlight the field of environmental monitoring, food and medicine safety, and disease detection in recent years. Finally, the development of E2 detection by biosensor is prospected.
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Affiliation(s)
- Xinyi Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Fanli Kong
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Yaoyao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Shiya Lv
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Kui Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Shutong Sun
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Juntao Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Mixia Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Xinxia Cai
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Hongyan Jin
- Obstetrics and Gynecology Department, Peking University First Hospital, Beijing, China
| | - Shi Yan
- Department of Thoracic Surgery II, Peking University Cancer Hospital & Institute, Beijing, China
| | - Jinping Luo
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing, China
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Ozhogin IV, Pugachev AD, Makarova NI, Belanova AA, Kozlenko AS, Rostovtseva IA, Zolotukhin PV, Demidov OP, El-Sewify IM, Borodkin GS, Metelitsa AV, Lukyanov BS. Novel Indoline Spiropyrans Based on Human Hormones β-Estradiol and Estrone: Synthesis, Structure, Chromogenic and Cytotoxic Properties. Molecules 2023; 28:molecules28093866. [PMID: 37175276 PMCID: PMC10179760 DOI: 10.3390/molecules28093866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The introduction of a switchable function into the structure of a bioactive compound can endow it with unique capabilities for regulating biological activity under the influence of various types of external stimuli, which makes such hybrid compounds promising objects for photopharmacology, targeted drug delivery and bio-imaging. This work is devoted to the synthesis and study of new spirocyclic derivatives of important human hormones-β-estradiol and estrone-possessing a wide range of biological activities. The obtained hybrid compounds represent an indoline spiropyrans family, a widely known class of organic photochromic compounds. The structure of the compounds was confirmed by 1H and 13C NMR, IR, HRMS and single-crystal X-ray analysis. The intermolecular interactions in the crystals of spiropyran (3) were defined by Hirshfeld surfaces and 2D fingerprint plots, which were successfully acquired from CrystalExplorer (v21.5). All target hybrids demonstrated pronounced activity in the visible region of the spectrum. The mechanisms of thermal isomerization processes of spiropyrans and their protonated merocyanine forms were studied by DFT methods, which revealed the energetic advantage of the protonation process with the formation of a β-cisoid CCCH conformer at the first stage and its further isomerization to more stable β-transoid forms. The proposed mechanism of acidochromic transformation was confirmed by the additional NMR study data that allowed for the detecting of the intermediate CCCH isomer. The study of the short-term cytotoxicity of new spirocyclic derivatives of estrogens and their 2-formyl-precursors was performed on the HeLa cell model. The precursors and spiropyrans differed in toxicity, suggesting their variable applicability in novel anti-cancer technologies.
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Affiliation(s)
- Ilya V Ozhogin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Artem D Pugachev
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Nadezhda I Makarova
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Anna A Belanova
- Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Anastasia S Kozlenko
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Irina A Rostovtseva
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Peter V Zolotukhin
- Academy of Biology and Biotechnology, Southern Federal University, 194/1 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Oleg P Demidov
- Faculty of Chemistry and Pharmacy, North-Caucasus Federal University, 1 Pushkina Str., 355000 Stavropol, Russia
| | - Islam M El-Sewify
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Gennady S Borodkin
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Anatoly V Metelitsa
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
| | - Boris S Lukyanov
- Institute of Physical and Organic Chemistry, Southern Federal University, 194/2 Stachka Ave., 344090 Rostov-on-Don, Russia
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SenthilKumar G, Katunaric B, Bordas-Murphy H, Sarvaideo J, Freed JK. Estrogen and the Vascular Endothelium: The Unanswered Questions. Endocrinology 2023; 164:bqad079. [PMID: 37207450 PMCID: PMC10230790 DOI: 10.1210/endocr/bqad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/03/2023] [Accepted: 05/17/2023] [Indexed: 05/21/2023]
Abstract
Premenopausal women have a lower incidence of cardiovascular disease (CVD) compared with their age-matched male counterparts; however, this discrepancy is abolished following the transition to menopause or during low estrogen states. This, combined with a large amount of basic and preclinical data indicating that estrogen is vasculoprotective, supports the concept that hormone therapy could improve cardiovascular health. However, clinical outcomes in individuals undergoing estrogen treatment have been highly variable, challenging the current paradigm regarding the role of estrogen in the fight against heart disease. Increased risk for CVD correlates with long-term oral contraceptive use, hormone replacement therapy in older, postmenopausal cisgender females, and gender affirmation treatment for transgender females. Vascular endothelial dysfunction serves as a nidus for the development of many cardiovascular diseases and is highly predictive of future CVD risk. Despite preclinical studies indicating that estrogen promotes a quiescent, functional endothelium, it still remains unclear why these observations do not translate to improved CVD outcomes. The goal of this review is to explore our current understanding of the effect of estrogen on the vasculature, with a focus on endothelial health. Following a discussion regarding the influence of estrogen on large and small artery function, critical knowledge gaps are identified. Finally, novel mechanisms and hypotheses are presented that may explain the lack of cardiovascular benefit in unique patient populations.
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Affiliation(s)
- Gopika SenthilKumar
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cardiovasular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee WI 53226, USA
| | - Boran Katunaric
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee WI 53226, USA
| | - Henry Bordas-Murphy
- Cardiovasular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee WI 53226, USA
| | - Jenna Sarvaideo
- Divison of Endocrinology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Julie K Freed
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Cardiovasular Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee WI 53226, USA
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Gao LJ, He ZM, Li YY, Yang RR, Yan M, Shang X, Cao JM. Role of OAS gene family in COVID-19 induced heart failure. J Transl Med 2023; 21:212. [PMID: 36949448 PMCID: PMC10031198 DOI: 10.1186/s12967-023-04058-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 03/12/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND COVID-19, the current global pandemic caused by SARS-CoV-2 infection, can damage the heart and lead to heart failure (HF) and even cardiac death. The 2',5'-oligoadenylate synthetase (OAS) gene family encode interferon (IFN)-induced antiviral proteins which is associated with the antiviral immune responses of COVID-19. While the potential association of OAS gene family with cardiac injury and failure in COVID-19 has not been determined. METHODS The expression levels and biological functions of OAS gene family in SARS-CoV-2 infected cardiomyocytes dataset (GSE150392) and HF dataset (GSE120852) were determined by comprehensive bioinformatic analysis and experimental validation. The associated microRNAs (miRNAs) were explored from Targetscan and GSE104150. The potential OAS gene family-regulatory chemicals or ingredients were predicted using Comparative Toxicogenomics Database (CTD) and SymMap database. RESULTS The OAS genes were highly expressed in both SARS-CoV-2 infected cardiomyocytes and failing hearts. The differentially expressed genes (DEGs) in the two datasets were enriched in both cardiovascular disease and COVID-19 related pathways. The miRNAs-target analysis indicated that 10 miRNAs could increase the expression of OAS genes. A variety of chemicals or ingredients were predicted regulating the expression of OAS gene family especially estradiol. CONCLUSION OAS gene family is an important mediator of HF in COVID-19 and may serve as a potential therapeutic target for cardiac injury and HF in COVID-19.
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Affiliation(s)
- Li-Juan Gao
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China.
| | - Zhong-Mei He
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Yi-Ying Li
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Rui-Rui Yang
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Min Yan
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Xuan Shang
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China
| | - Ji-Min Cao
- Key Laboratory of Cellular Physiology, Department of Physiology, Ministry of Education, Shanxi Medical University, Taiyuan, 030001, Shanxi, People's Republic of China.
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Kukal S, Thakran S, Kanojia N, Yadav S, Mishra MK, Guin D, Singh P, Kukreti R. Genic-intergenic polymorphisms of CYP1A genes and their clinical impact. Gene 2023; 857:147171. [PMID: 36623673 DOI: 10.1016/j.gene.2023.147171] [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: 10/04/2022] [Revised: 12/16/2022] [Accepted: 01/03/2023] [Indexed: 01/08/2023]
Abstract
The humancytochrome P450 1A (CYP1A) subfamily genes, CYP1A1 and CYP1A2, encoding monooxygenases are critically involved in biotransformation of key endogenous substrates (estradiol, arachidonic acid, cholesterol) and exogenous compounds (smoke constituents, carcinogens, caffeine, therapeutic drugs). This suggests their significant involvement in multiple biological pathways with a primary role of maintaining endogenous homeostasis and xenobiotic detoxification. Large interindividual variability exist in CYP1A gene expression and/or catalytic activity of the enzyme, which is primarily due to the existence of polymorphic alleles which encode them. These polymorphisms (mainly single nucleotide polymorphisms, SNPs) have been extensively studied as susceptibility factors in a spectrum of clinical phenotypes. An in-depth understanding of the effects of polymorphic CYP1A genes on the differential metabolic activity and the resulting biological pathways is needed to explain the clinical implications of CYP1A polymorphisms. The present review is intended to provide an integrated understanding of CYP1A metabolic activity with unique substrate specificity and their involvement in physiological and pathophysiological roles. The article further emphasizes on the impact of widely studied CYP1A1 and CYP1A2 SNPs and their complex interaction with non-genetic factors like smoking and caffeine intake on multiple clinical phenotypes. Finally, we attempted to discuss the alterations in metabolism/physiology concerning the polymorphic CYP1A genes, which may underlie the reported clinical associations. This knowledge may provide insights into the disease pathogenesis, risk stratification, response to therapy and potential drug targets for individuals with certain CYP1A genotypes.
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Affiliation(s)
- Samiksha Kukal
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sarita Thakran
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Neha Kanojia
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Saroj Yadav
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manish Kumar Mishra
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi 110042, India
| | - Debleena Guin
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Department of Biotechnology, Delhi Technological University, Shahbad Daulatpur, Main Bawana Road, Delhi 110042, India
| | - Pooja Singh
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ritushree Kukreti
- Genomics and Molecular Medicine Unit, Institute of Genomics and Integrative Biology (IGIB), Council of Scientific and Industrial Research (CSIR), Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Association of cytochrome P450 1B1 gene polymorphisms and environmental biomarkers with hypertension in Slovak midlife women. ACTA ACUST UNITED AC 2021; 27:1287-1294. [PMID: 33110045 DOI: 10.1097/gme.0000000000001605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE This study investigated the association of the Leu432Val and Asn453Ser CYP1B1 polymorphisms and selected environmental biomarkers with hypertension (HT) in Slovak midlife women. METHODS We studied 575 women. Divided according to their blood pressure status: 255 with HT and 320 without HT. All data was obtained by using standard anthropometric, genetic methods and analyzed by regression models to adjust for HT risk factors such as age, obesity, smoking, and level of education. RESULTS Our findings revealed that CYP1B1 Leu432Val polymorphism was associated with HT, whereas no association was found between Asn453Ser polymorphism and HT. Women with at least one Val allele had significantly higher odds of HT compared to women with the Leu/Leu genotype in the total sample (Exp(B) = 1.82, CI 1.16-2.84, P = 0.009). After dividing women by menopausal status and the presence of HT environmental risk factor, the association between CYP1B1 polymorphism and HT was observed in pre/perimenopausal women (Exp(B), 2.36; 95% CI 1.13-4.92; P = 0.02), smokers (Exp(B), 3.40; 95% CI 1.48-7.82; P = 0.004), abdominal obesity (Exp(B), 2.41; 95% CI 1.23-4.75; P = 0.01) and in women with only basic education (Exp(B), 4.20, 95% CI 1.12-15.71; P = 0.03). However, general linear models did not reveal a statistically significant interactions between CYP1B1, menopausal status, and HT risk factors and their common association with HT (P > 0.05). CONCLUSIONS In this pilot study, we have provided novel data that supports the significant association of CYP1B1 Leu432Val gene polymorphism with HT in Slovak midlife women.
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Seeland U, Coluzzi F, Simmaco M, Mura C, Bourne PE, Heiland M, Preissner R, Preissner S. Evidence for treatment with estradiol for women with SARS-CoV-2 infection. BMC Med 2020; 18:369. [PMID: 33234138 PMCID: PMC7685778 DOI: 10.1186/s12916-020-01851-z] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/10/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Given that an individual's age and gender are strongly predictive of coronavirus disease 2019 (COVID-19) outcomes, do such factors imply anything about preferable therapeutic options? METHODS An analysis of electronic health records for a large (68,466-case), international COVID-19 cohort, in 5-year age strata, revealed age-dependent sex differences. In particular, we surveyed the effects of systemic hormone administration in women. The primary outcome for estradiol therapy was death. Odds ratios (ORs) and Kaplan-Meier survival curves were analyzed for 37,086 COVID-19 women in two age groups: pre- (15-49 years) and peri-/post-menopausal (> 50 years). RESULTS The incidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is higher in women than men (by about + 15%) and, in contrast, the fatality rate is higher in men (about + 50%). Interestingly, the relationships between these quantities are linked to age: pre-adolescent girls and boys had the same risk of infection and fatality rate, while adult premenopausal women had a significantly higher risk of infection than men in the same 5-year age stratum (about 16,000 vs. 12,000 cases). This ratio changed again in peri- and postmenopausal women, with infection susceptibility converging with men. While fatality rates increased continuously with age for both sexes, at 50 years, there was a steeper increase for men. Thus far, these types of intricacies have been largely neglected. Because the hormone 17ß-estradiol influences expression of the human angiotensin-converting enzyme 2 (ACE2) protein, which plays a role in SARS-CoV-2 cellular entry, propensity score matching was performed for the women's sub-cohort, comparing users vs. non-users of estradiol. This retrospective study of hormone therapy in female COVID-19 patients shows that the fatality risk for women > 50 years receiving estradiol therapy (user group) is reduced by more than 50%; the OR was 0.33, 95% CI [0.18, 0.62] and the hazard ratio (HR) was 0.29, 95% CI [0.11,0.76]. For younger, pre-menopausal women (15-49 years), the risk of COVID-19 fatality is the same irrespective of estradiol treatment, probably because of higher endogenous estradiol levels. CONCLUSIONS As of this writing, still no effective drug treatment is available for COVID-19; since estradiol shows such a strong improvement regarding fatality in COVID-19, we suggest prospective studies on the potentially more broadly protective roles of this naturally occurring hormone.
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Affiliation(s)
- Ute Seeland
- Institute of Physiology and Science-IT, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Philippstrasse 12, 10115, Berlin, Germany
| | - Flaminia Coluzzi
- Department Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, 04100, Latina, Italy
- Unit of Anesthesia and Intensive Care Medicine, Sant'Andrea University Hospital, 00189, Rome, Italy
| | - Maurizio Simmaco
- Department Neurosciences, Mental Health and Sensory Organs, Sapienza University of Rome, 00189, Rome, Italy
- Advanced Molecular Diagnostic Unit, Sant'Andrea University Hospital, 00189, Rome, Italy
| | - Cameron Mura
- School of Data Science and Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Philip E Bourne
- School of Data Science and Department of Biomedical Engineering, University of Virginia, Charlottesville, VA, USA
| | - Max Heiland
- Department Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Augustenburger Platz 1, 13353, Berlin, Germany
| | - Robert Preissner
- Institute of Physiology and Science-IT, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Philippstrasse 12, 10115, Berlin, Germany
| | - Saskia Preissner
- Department Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health Augustenburger Platz 1, 13353, Berlin, Germany.
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10
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Lee HJ, Kim BM, Lee SH, Sohn JT, Choi JW, Cho CW, Hong HD, Rhee YK, Kim HJ. Ginseng-Induced Changes to Blood Vessel Dilation and the Metabolome of Rats. Nutrients 2020; 12:nu12082238. [PMID: 32727012 PMCID: PMC7468881 DOI: 10.3390/nu12082238] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 01/03/2023] Open
Abstract
Ginseng consumption has been shown to prevent and reduce many health risks, including cardiovascular disease. However, the ginseng-induced changes in biofluids and tissue metabolomes associated with blood health remain poorly understood. In this study, healthy rats were orally administered ginseng extracts or water for one month. Biofluid and tissue metabolites along with steroid hormones, plasma cytokines, and blood pressure factors were determined to elucidate the relationship between ginseng intake and blood vessel health. Moreover, the effect of ginseng extract on blood vessel tension was measured from the thoracic aorta. Ginseng intake decreased the levels of blood phospholipids, lysophosphatidylcholines and related enzymes, high blood pressure factors, and cytokines, and induced vasodilation. Moreover, ginseng intake decreased the level of renal oxidized glutathione. Overall, our findings suggest that ginseng intake can improve blood vessel health via modulation of vasodilation, oxidation stress, and pro-inflammatory cytokines. Moreover, the decrease in renal oxidized glutathione indicated that ginseng intake is positively related with the reduction in oxidative stress-induced renal dysfunction.
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Affiliation(s)
- Hyeon-Jeong Lee
- Division of Applied Life Sciences (BK21 plus), Gyeongsang National University, 501 Jinjudae-ro, Jinju, Gyeongsangnam-do 52828, Korea; (H.-J.L.); (B.-M.K.)
| | - Bo-Min Kim
- Division of Applied Life Sciences (BK21 plus), Gyeongsang National University, 501 Jinjudae-ro, Jinju, Gyeongsangnam-do 52828, Korea; (H.-J.L.); (B.-M.K.)
| | - Soo Hee Lee
- Department of Anesthesiology and Pain Medicine, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, 79 Gangnam-ro, Jinju, Gyeongsangnam-do 52727, Korea; (S.H.L.); (J.-T.S.)
| | - Ju-Tae Sohn
- Department of Anesthesiology and Pain Medicine, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, 79 Gangnam-ro, Jinju, Gyeongsangnam-do 52727, Korea; (S.H.L.); (J.-T.S.)
- Institute of Health Sciences, Gyeongsang National University, 501 Jinjudae-ro, Jinju, Gyeongsangnam-do 52828, Korea
| | - Jae Woong Choi
- Research Group of Traditional Food, Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Korea; (J.W.C.); (C.-W.C.); (H.-D.H.)
| | - Chang-Won Cho
- Research Group of Traditional Food, Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Korea; (J.W.C.); (C.-W.C.); (H.-D.H.)
| | - Hee-Do Hong
- Research Group of Traditional Food, Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Korea; (J.W.C.); (C.-W.C.); (H.-D.H.)
| | - Young Kyoung Rhee
- Research Group of Traditional Food, Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Korea; (J.W.C.); (C.-W.C.); (H.-D.H.)
- Correspondence: (Y.K.R.); (H.-J.K.); Tel.: +82-63-219-9319 (Y.K.R.); +82-55-772-1908 (H.-J.K.); Fax: +82-63-219-9876 (Y.K.R.); +82-55-772-1909 (H.-J.K.)
| | - Hyun-Jin Kim
- Division of Applied Life Sciences (BK21 plus), Gyeongsang National University, 501 Jinjudae-ro, Jinju, Gyeongsangnam-do 52828, Korea; (H.-J.L.); (B.-M.K.)
- Department of Food Science & Technology, and Institute of Agriculture and Life Science, Gyeongsang National University, 501 Jinjudaero, Jinju, Gyeongsangnam-do 52828, Korea
- Correspondence: (Y.K.R.); (H.-J.K.); Tel.: +82-63-219-9319 (Y.K.R.); +82-55-772-1908 (H.-J.K.); Fax: +82-63-219-9876 (Y.K.R.); +82-55-772-1909 (H.-J.K.)
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11
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Acute Valproate Exposure Induces Sex-Specific Changes in Steroid Hormone Metabolism in the Cerebral Cortex of Juvenile Mice. Neurochem Res 2020; 45:2044-2051. [PMID: 32601984 DOI: 10.1007/s11064-020-03065-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/17/2020] [Accepted: 05/27/2020] [Indexed: 10/24/2022]
Abstract
Valproic acid (VPA), an antiepileptic and mood stabilizer, modulates neurotransmission and gene expression by inhibiting histone deacetylase activity. It is reported that VPA may affects the steroid hormone level. In this study, VPA-induced acute metabolic alterations were investigated using liquid chromatography-tandem mass spectrometry in prepubertal mice brain. In VPA-treated (400 mg/kg in saline solution, intraperitoneal) mice, cortisol levels were increased (female: P < 0.004, male: P < 0.003) and 17β-estradiol levels were decreased (Both P < 0.03). Furthermore, in the VPA-treated male mice, dihydrotestosterone levels were increased (P < 0.02) and testosterone were decreased (P < 0.002). The 4-hydroxylase activity was upregulated in the female VPA-treated mice (P < 0.01) and the 5α-reductase activity was increased in the male VPA-treated mice (P < 0.003). These results indicate sex specific differences in VPA-induced steroid metabolism in the brain cortex.
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12
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Singh P, Song CY, Dutta SR, Gonzalez FJ, Malik KU. Central CYP1B1 (Cytochrome P450 1B1)-Estradiol Metabolite 2-Methoxyestradiol Protects From Hypertension and Neuroinflammation in Female Mice. Hypertension 2020; 75:1054-1062. [PMID: 32148125 PMCID: PMC7098446 DOI: 10.1161/hypertensionaha.119.14548] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Supplemental Digital Content is available in the text. Previously, we showed that peripheral administration of 2-ME (2-methoxyestradiol), a CYP1B1 (cytochrome P450 1B1)-catechol-O-methyltransferase (COMT) generated metabolite of E2 (17β-Estradiol), protects against angiotensin II-induced hypertension in female mice. The demonstration that central E2 inhibits angiotensin II-induced hypertension, together with the expression of CYP1B1 in the brain, led us to hypothesize that E2-CYP1B1 generated metabolite 2-ME in the brain mediates its protective action against angiotensin II-induced hypertension in female mice. To test this hypothesis, we examined the effect of intracerebroventricularly (ICV) administered E2 in ovariectomized (OVX)-wild-type (Cyp1b1+/+) and OVX-Cyp1b1−/− mice on the action of systemic angiotensin II. ICV-E2 attenuated the angiotensin II-induced increase in mean arterial blood pressure, impairment of baroreflex sensitivity, and sympathetic activity in OVX-Cyp1b1+/+ but not in ICV-injected short interfering (si)RNA-COMT or OVX-Cyp1b1−/− mice. ICV-2-ME attenuated the angiotensin II-induced increase in blood pressure in OVX-Cyp1b1−/− mice; this effect was inhibited by ICV-siRNA estrogen receptor-α (ERα) and G protein-coupled estrogen receptor 1 (GPER1). ICV-E2 in OVX-Cyp1b1+/+ but not in OVX-Cyp1b1−/− mice and 2-ME in the OVX-Cyp1b1−/− inhibited angiotensin II-induced increase in reactive oxygen species production in the subfornical organ and paraventricular nucleus, activation of microglia and astrocyte, and neuroinflammation in paraventricular nucleus. Furthermore, central CYP1B1 gene disruption in Cyp1b1+/+ mice by ICV-adenovirus-GFP (green fluorescence protein)-CYP1B1-short hairpin (sh)RNA elevated, while reconstitution by adenovirus-GFP-CYP1B1-DNA in the paraventricular nucleus but not in subfornical organ in Cyp1b1−/− mice attenuated the angiotensin II-induced increase in systolic blood pressure. These data suggest that E2-CYP1B1-COMT generated metabolite 2-ME, most likely in the paraventricular nucleus via estrogen receptor-α and GPER1, protects against angiotensin II-induced hypertension and neuroinflammation in female mice.
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Affiliation(s)
- Purnima Singh
- From the Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis (P.S., C.Y.S., S.R.D., K.U.M.)
| | - Chi Young Song
- From the Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis (P.S., C.Y.S., S.R.D., K.U.M.)
| | - Shubha Ranjan Dutta
- From the Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis (P.S., C.Y.S., S.R.D., K.U.M.)
| | - Frank J Gonzalez
- Laboratory of Metabolism, National Cancer Institute, Bethesda, MD (F.J.G.)
| | - Kafait U Malik
- From the Department of Pharmacology, Addiction Science, and Toxicology, College of Medicine, University of Tennessee Health Science Center, Memphis (P.S., C.Y.S., S.R.D., K.U.M.)
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13
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Minahan C, O'Neill H, Sikkema N, Joyce S, Larsen B, Sabapathy S. Oral contraceptives augment the exercise pressor reflex during isometric handgrip exercise. Physiol Rep 2019; 6. [PMID: 29512308 PMCID: PMC5840454 DOI: 10.14814/phy2.13629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 01/22/2018] [Accepted: 01/24/2018] [Indexed: 11/24/2022] Open
Abstract
We sought to determine whether oral contraception alters the gender-related differences observed in the exercise pressor reflex during isometric handgrip exercise. Fifteen men, fifteen normally menstruating women (WomenNM), and fifteen women taking monophasic oral contraceptives (WomenOC) completed two trials of a 3-min isometric handgrip exercise protocol performed at 30% of their maximal voluntary contraction: (1) where arterial occlusion was applied to the previously exercising arm during a 3-min recovery period (Occlusion trial); (2) where no arterial occlusion was applied during recovery (Control trial). Handgrip exercise elicited greater increases in mean arterial pressure (MAP) in MEN compared to both female groups (P < 0.05), and in WomenOC compared to WomenNM in both trials (P = 0.01, P = 0.03). After 3 min of recovery, sBP was 12% (P = 0.01) and 9% (P = 0.02) higher in the Occlusion trial when compared to the Control trial for MEN and WomenOC. Conversely, arterial occlusion in recovery from handgrip did not sustain elevated sBP in the Occlusion trial, and sBP returned to recovery levels not different to the Control trial, in WomenNM (P = 0.41). These data indicate that gender-related differences in the metaboreflex during isometric handgrip exercise exist between men and normally menstruating women, but are blunted when men are compared to women taking oral contraceptives. We conclude that the suppression of 17β-estradiol and/or progestogen in women via the administration of oral contraceptives attenuates sex-related differences in the metaboreflex during isometric handgrip exercise.
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Affiliation(s)
- Clare Minahan
- Griffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - Hailey O'Neill
- Griffith Sports Physiology and Performance, Gold Coast, Queensland, Australia
| | - Nelie Sikkema
- Griffith Sports Physiology and Performance, Gold Coast, Queensland, Australia
| | - Sarah Joyce
- Griffith Sports Physiology and Performance, Gold Coast, Queensland, Australia
| | - Brianna Larsen
- Griffith Sports Physiology and Performance, Gold Coast, Queensland, Australia.,Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia.,Queensland Academy of Sport Centre of Excellence for Applied Sport Science Research, Nathan, Queensland, Australia
| | - Surendran Sabapathy
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
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14
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Resende AD, Leal S, Batista‐Pinto C, Garcez F, Sá SI. Hepatic effects of long‐term tamoxifen administration to cycling female rats. J Biochem Mol Toxicol 2019; 33:e22293. [DOI: 10.1002/jbt.22293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 01/02/2019] [Accepted: 01/04/2019] [Indexed: 12/18/2022]
Affiliation(s)
- Albina Dolores Resende
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS)Gandra Portugal
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR)Matosinhos Portugal
| | - Sandra Leal
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS)Gandra Portugal
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of PortoPorto Portugal
| | - Carla Batista‐Pinto
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS)Gandra Portugal
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR)Matosinhos Portugal
| | - Fernanda Garcez
- CESPU, Institute of Research and Advanced Training in Health Sciences and Technologies (IINFACTS)Gandra Portugal
| | - Susana Isabel Sá
- Center for Health Technology and Services Research (CINTESIS), Faculty of Medicine, University of PortoPorto Portugal
- Unit of Anatomy, Department of BiomedicineFaculty of Medicine of the University of PortoPorto Portugal
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15
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Lin YY, Chen JS, Wu XB, Shyu WC, Chaunchaiyakul R, Zhao XL, Kuo CH, Cheng YJ, Yang AL, Lee SD. Combined effects of 17β-estradiol and exercise training on cardiac apoptosis in ovariectomized rats. PLoS One 2018; 13:e0208633. [PMID: 30571718 PMCID: PMC6301615 DOI: 10.1371/journal.pone.0208633] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/20/2018] [Indexed: 11/19/2022] Open
Abstract
Background The purpose of this study was to investigate the combined 17β-estradiol (E2) and exercise training on cardiac pro-survival and anti-apoptotic pathways in ovariectomized rats. Methods Fifty-six female Sprague–Dawley rats were divided into a sham-operated (Sham), a bilaterally ovariectomized (OVX), an OVX treated with E2 (OVX-E2; 10μg/kg/day), and an OVX with E2 and treadmill exercise training (OVX-E2-EX; 60 min/day, 5 days/week) for 10 weeks. Following 10 weeks of exercise training, rat hearts were isolated for the evaluation of Histopathological analysis, TUNEL assay, and Western blotting. Results The protein levels of estrogen receptor α (ERα), estrogen receptor β (ERβ), insulin-like growth factor 1 (IGF-1), IGF-1 receptor (IGF-1R), phospho-phosphatidylinositol 3-kinase (p-PI3K) (estrogen receptors/IGF-1-related survival pathway) were significantly increased in either the OVX-E2 or OVX-E2-EX group when compared with the OVX group. The protein levels of B-cell lymphoma 2 (Bcl-2), B-cell lymphoma-extra-large (Bcl-xL) and phosphorylated-Bad (p-Bad) (Bcl-2 family survival pathway) were significantly increased in the OVX-E2-EX group when compared with the OVX group. Only the p-Bad was significantly increased in the OVX-E2 group when compared with the OVX group. The protein levels of truncation of Bid (t-Bid), Bcl-2-associated death promotor (Bad), Bcl-2-associated X protein (Bax), Cytochrome c, caspases-9, and caspases-3 (mitochondria-dependent apoptotic pathway), as well as the protein levels of tumor necrosis factor-α (TNF-α), Fas ligand, Fas receptors, Fas-associated death domain (FADD), activated caspase-8 and activated caspase-3 (Fas receptor–dependent apoptotic pathway) were significantly decreased in either the OVX-E2 or OVX-E2-EX group when compared with the OVX group. Furthermore, when compared with the OVX-E2 group, the protein levels of ERβ, IGF-1, IGF-1R, Bcl-2 and Bcl-xL were further enhanced in the OVX-E2-EX group as well as the protein levels of Cytochrome c, Fas receptors, FADD, activated caspase-8, activated caspase-9 and activated caspase-3 were further decreased in the OVX-EX-E2 group. Conclusions Combined E2 and exercise training exhibited a positive effect of protection on ovariectomy-induced cardiac apoptosis by enhancing ERβ-related survival pathways, which might provide a more effective therapeutic effect on cardiac protection in bilaterally oophorectomized or menopausal women than E2 treatment only.
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Affiliation(s)
- Yi-Yuan Lin
- Departmental of Rehabilitation, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Jwo-Sheng Chen
- Department of Sports Medicine, China Medical University, Taichung, Taiwan
| | - Xu-Bo Wu
- Departmental of Rehabilitation, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Woei-Cherng Shyu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Translational Medicine Research Center, China Medical University Hospital, Taichung, Taiwan
| | | | - Xian-Li Zhao
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chia-Hua Kuo
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Yu-Jung Cheng
- Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taichung, Taiwan
| | - Ai-Lun Yang
- Department of Sports Sciences, University of Taipei, Taipei, Taiwan
| | - Shin-Da Lee
- Departmental of Rehabilitation, Seventh People’s Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Physical Therapy, Graduate Institute of Rehabilitation Science, China Medical University, Taichung, Taichung, Taiwan
- Department of Occupational Therapy, Asia University, Taichung, Taiwan
- * E-mail:
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16
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Liao S, Wu H, Chen R. Apolipoprotein A1 mimetic peptide ATI-5261 reverses arterial stiffness at late pregnancy and early postpartum in a COMT -/- mouse model of preeclampsia. Clin Hypertens 2018; 24:11. [PMID: 30237900 PMCID: PMC6138905 DOI: 10.1186/s40885-018-0097-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/09/2018] [Indexed: 12/26/2022] Open
Abstract
Background Preeclampsia (PE) is a serious maternal complication during pregnancy. Associated arterial stiffness in PE patients leads to increased risks of cardiovascular diseases later in life. Cholesterol efflux capacity, especially ATP binding cassette transporter A1 (ABCA1) dependent capacity, has been proposed to be a likely mediator of arterial stiffness. In the present study, we aimed to evaluate the effect of an apolipoprotein A1 mimetic peptide ATI-5261 on arterial stiffness in a mouse model of PE. Methods Pregnant COMT-/- mice were randomized to receive vehicle or ATI-5261 (30 mg/kg per day) via subcutaneous injection from gestational days (GD) 10.5 to GD 18.5 or to 10 days postpartum. Pregnant C57BL/6 J mice received vehicle during paralleled periods were served as normal controls. Results COMT-/- mice displayed maternal hypertension and proteinuria during pregnancy. Carotid-femoral pulse wave velocity (PWV) was increased at GD 18.5 and 10 days postpartum. ATI-5261 treatment in COMT-/- mice significantly reduced PWV and partially normalized impaired ex vivo vascular function at late pregnancy and early postpartum. ATI-5261 treatment also increased serum ABCA1 concentrations and cholesterol efflux capacity, as well as ABCA1 expressions in the placenta. Pup weights, crown to rump lengths and abdominal circumferences were reduced in COMT-/- mice. Treatment with ATI-5261 did not alter these fetal measurements but significantly reduced placental weights and increased fetal to placental ratios in COMT-/- mice. Conclusion ATI-5261 reversed arterial stiffness at late pregnancy and early postpartum in a COMT-/- mouse model of PE and may be a potential therapy for arterial stiffness associated with PE.
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Affiliation(s)
- Shutan Liao
- 1Rural Clinical School, University of New South Wales, Sydney, NSW Australia.,2The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hao Wu
- 3Chashan Teaching Centre, Department of Physiology, Wenzhou Medical University, Wenzhou, 325035 Zhejiang China
| | - Ruiying Chen
- 3Chashan Teaching Centre, Department of Physiology, Wenzhou Medical University, Wenzhou, 325035 Zhejiang China
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17
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Landeros RV, Pastore MB, Magness RR. Effects of the Catechol and Methoxy Metabolites of 17β-Estradiol on Nitric Oxide Production by Ovine Uterine Artery Endothelial Cells. Reprod Sci 2018; 26:459-468. [PMID: 29929429 DOI: 10.1177/1933719118783265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Nitric oxide (NO) production is essential to facilitate rises in uterine blood flow (UBF) during pregnancy. It has been proposed that the metabolites of E2β, 2-hydroxyestradiol (2-OHE2), 4-hydroxyestradiol (4-OHE2), 2-methoxyestradiol (2-ME2), and 4-methoxyestradiol (4-ME2) play a role in mediating vasodilation and rises in UBF during pregnancy. We previously showed that the E2β metabolites stimulate prostacyclin production in pregnancy-derived ovine uterine artery endothelial cells (P-UAECs); however, it is unknown whether the E2β metabolites also induce NO production. Herein, UAECs derived from nonpregnant and pregnant ewes were used to test the hypothesis that E2β metabolites stimulate NO production in a pregnancy-specific manner. Specific estrogen receptor (ER) and adrenergic receptor (AR) antagonists were used to determine the roles of ERs or ARs in E2β metabolite-induced NO production. E2β and its metabolites increased total nitric oxide metabolites (NOx) levels (NO2 + NO3) in P-UAECs, but not in NP-UAECs. Pretreatment with combined 1 µmol/L 1,3-bis(4-hydroxyphenyl)-4-methyl-5-[4-(2-piperidinylethoxy)phenol]-1H-pyrazole dihydrochloride (MPP; ER-α antagonist) and 1 µmol/L 4-[2-phenyl-5,7-bis(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-3-yl]phenol (PHTPP; ER-β antagonist) inhibited the rises in NOx levels stimulated by E2β and 2-ME2, but had no effect on 2-OHE2-, 4-OHE2-, or 4-ME2-stimulated rises in NOx levels. Pretreatment with yohimbine (α2-AR antagonist) and propranolol (β2,3-AR antagonist) inhibited the rises in NOx levels stimulated by 2-OHE2, but not by E2β, 4-OHE2, 2-ME2, or 4-ME2. These data demonstrate that E2β metabolites stimulate NO synthesis via ERs or ARs in UAECs in a pregnancy-specific manner, suggesting that these metabolites contribute to rises in vasodilation and UBF during pregnancy.
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Affiliation(s)
- Rosalina Villalon Landeros
- 1 Department of Obstetrics and Gynecology, Perinatal Research Laboratories, University of Wisconsin-Madison, Madison, WI, USA
| | - Mayra B Pastore
- 2 Department of Cellular and Molecular Pharmacology, University of California, San Francisco, San Francisco, CA, USA
| | - Ronald R Magness
- 1 Department of Obstetrics and Gynecology, Perinatal Research Laboratories, University of Wisconsin-Madison, Madison, WI, USA.,3 Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, USA.,4 Department of Animal Science, University of Wisconsin-Madison, Madison, WI, USA.,5 Department of Obstetrics and Gynecology, Morsani College of Medicine, Perinatal Research Vascular Center, University of South Florida, Tampa, FL, USA
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18
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Peng DD, Xie W, Yu ZX. Impact of interaction between CYP1A1 genetic polymorphisms and smoking on coronary artery disease in the Han of China. Clin Exp Hypertens 2017; 39:339-343. [PMID: 28513235 DOI: 10.1080/10641963.2016.1259326] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AIMS To investigate the association of CYP1A1 genotype and additional gene-smoking interaction with coronary artery disease (CAD) risk based on a Chinese case-control study. METHODS A total of 1862 participants (1134 men, 728 women) were selected, including 620 CAD patients and 1242 normal controls. Logistic regression was performed to investigate association of CYP1A1 genotype, gene-gene, and gene-smoking interaction with CAD. Generalized multifactor dimensionality reduction (GMDR) was used to screen the best gene-gene and gene-smoking interaction combination, cross-validation consistency, the testing balanced accuracy, and the sign test, to assess if each selected interaction was calculated. RESULTS The carriers of homozygous mutant of rs4886605 polymorphism and heterozygous of rs4646903 are associated with increased CAD risk than those with wild-type homozygotes; OR (95% CI) was 1.98 (1.53-2.61) and 1.58 (1.24-1.96), respectively. The carriers of homozygous mutant of rs1048943 polymorphism is associated with decreased CAD risk than those with wild-type homozygotes, OR (95% CI) = 0.75 (0.60-0.93). GMDR model indicated a potential gene-gene interaction between rs4886605 and rs4646903 and a potential gene-smoking interaction between rs4886605 and smoking. Participants with rs4886605-CT or TT and rs4646903-TC or CC genotype have the highest CAD risk, compared to participants with rs4886605-CC and rs4646903-TT genotype; OR (95% CI) was 2.72 (2.03-3.61). In addition, we also found that smokers with rs4886605-CT or TT genotype have the highest CAD risk, compared to nonsmokers with rs4886605-CC genotype; OR (95% CI) was 3.07 (2.23-3.96). CONCLUSIONS rs4886605 and rs4646903 are associated with increased CAD risk, but rs1048943 is associated with decreased CAD risk; we also found gene-gene interaction between rs4886605 and rs4646903 and gene-environment interaction between rs4886605 and smoking.
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Affiliation(s)
- Dao-Di Peng
- a Department of Cardiology , Central South University Xiangya Hospital , Changsha , Hunan , China
| | - Wei Xie
- a Department of Cardiology , Central South University Xiangya Hospital , Changsha , Hunan , China
| | - Zai-Xin Yu
- a Department of Cardiology , Central South University Xiangya Hospital , Changsha , Hunan , China
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19
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Zhao X, Liu J, Zhao C, Ye P, Ji J, Wang J, Song W, Xu J, Liu S. Association between COMT Val158Met polymorphism and preeclampsia in the Chinese Han population. Hypertens Pregnancy 2016; 35:565-572. [PMID: 27646972 DOI: 10.1080/10641955.2016.1211677] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Previous studies have been indicated that catechol-O-methyltransferase gene (COMT) might play a significant role in the development of preeclampsia (PE). Our study aims to investigate the association between polymorphism in COMT with the susceptibility to PE in Chinese Han women. METHOD A total of 1028 PE patients and 1399 normal pregnant women were enrolled. We detected the genotyping of COMT Val158Met loci by the TaqMan allelic discrimination real-time PCR . RESULTS No significant difference in the genotypic and allelic distribution was found between the two groups (genotype: X2 = 0.583, p = 0.747; allele:X2 = 0.526, p = 0.468). CONCLUSION The COMT Val158Met polymorphism might not be associated with PE in Chinese women.
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Affiliation(s)
- Xiaohua Zhao
- a Clinical Laboratory , Linyi People's Hospital , Linyi , China
| | - Jingjing Liu
- b Department of Blood Transfusion , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Cuisheng Zhao
- c Clinical Laboratory Center , Gansu Provincial Maternity and Child-care Hospital , Gansu , China
| | - Ping Ye
- c Clinical Laboratory Center , Gansu Provincial Maternity and Child-care Hospital , Gansu , China
| | - Jing Ji
- d Department of Pathogenic Microorganisms , The Medical College of Qingdao University , Qingdao , China
| | - Jingli Wang
- e Prenatal Diagnosis Center , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Weiqing Song
- f Department of Clinical Laboratory , Qingdao Municipal Hospital (Group) , Qingdao , China
| | - Jine Xu
- g Obstetrical Department , The Affiliated Hospital of Qingdao University , Qingdao , China
| | - Shiguo Liu
- e Prenatal Diagnosis Center , The Affiliated Hospital of Qingdao University , Qingdao , China
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Yi X, Leung EKY, Bridgman R, Koo S, Yeo KTJ. High-Sensitivity Micro LC-MS/MS Assay for Serum Estradiol without Derivatization. J Appl Lab Med 2016; 1:14-24. [DOI: 10.1373/jalm.2016.020362] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 05/02/2016] [Indexed: 11/06/2022]
Abstract
Abstract
Background
There are considerable demands to accurately measure estradiol (E2) at low concentrations (<20 pg/mL) in postmenopausal women, men, pediatric patients, and patients receiving breast cancer treatment. Most current high-sensitivity LC-MS/MS E2 methods require large sample volumes and involve complex sample preparations with dansyl chloride derivatization. Our study aims to develop a high-sensitivity, underivatized method using micro LC-MS/MS to reliably measure E2 concentrations below 5 pg/mL by the use of low sample volume.
Methods
A total of 290 μL of sample was mixed with internal standard (IS), E2-d4, and extracted with a mixture of hexane/ethyl acetate (90/10) (v/v). After extraction, sample was separated by Eksigent Ekspert™ micro LC 200 system with a flow rate of 35 μL/min in a total run time of 3.5 min and detected by SCIEX QTRAP 6500 mass spectrometer in a negative mode using transitions: 271/145 (quantifier) and 271/143 (qualifier). In this method, it was crucial to use HPLC columns with stability at a pH >10.
Results
The validation study demonstrated broad linear ranges (3.0–820.0 pg/mL) with r2 > 0.999. Total precision was below 15% at all QC levels, and limit of quantification (LOQ) was 3.0 pg/mL. Our method showed good correlation with E2 RIA (r2 = 0.96, bias = −1.0 pg/mL) and modest correlation with E2 Roche Cobas automated immunoassay (r2 = 0.86, bias = 6.0 pg/mL).
Conclusions
In conclusion, we developed and validated a routinely applicable micro LC-MS/MS method without derivatization for E2 in blood samples with an LOQ of 3.0 pg/mL.
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Affiliation(s)
- Xin Yi
- Department of Pathology, The University of Chicago, Chicago, IL
- Current address: Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, TX
| | | | | | - Selene Koo
- Department of Pathology, The University of Chicago, Chicago, IL
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Schaufelberger SA, Rosselli M, Barchiesi F, Gillespie DG, Jackson EK, Dubey RK. 2-Methoxyestradiol, an endogenous 17β-estradiol metabolite, inhibits microglial proliferation and activation via an estrogen receptor-independent mechanism. Am J Physiol Endocrinol Metab 2016; 310:E313-22. [PMID: 26732685 PMCID: PMC4773653 DOI: 10.1152/ajpendo.00418.2015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 12/22/2015] [Indexed: 11/22/2022]
Abstract
17β-Estradiol (estradiol) inhibits microglia proliferation. 2-Methoxyestradiol (2-ME) is an endogenous metabolite of estradiol with little affinity for estrogen receptors (ERs). We hypothesize that 2-ME inhibits microglial proliferation and activation and contributes to estradiol's inhibitory effects on microglia. We compared the effects of estradiol, 2-hydroxyestradiol [2-OE; estradiol metabolite produced by cytochrome P450 (CYP450)], and 2-ME [formed by catechol-O-methyltransferase (COMT) acting upon 2-OE] on microglial (BV2 cells) DNA synthesis, cell proliferation, activation, and phagocytosis. 2-ME and 2-OE were approximately three- and 10-fold, respectively, more potent than estradiol in inhibiting microglia DNA synthesis. The antimitogenic effects of estradiol were reduced by pharmacological inhibitors of CYP450 and COMT. Inhibition of COMT blocked the conversion of 2-OE to 2-ME and the antimitogenic effects of 2-OE but not 2-ME. Microglia expressed ERβ and GPR30 but not ERα. 2,3-Bis(4-hydroxyphenyl)-propionitrile (ERβ agonist), but not 4,4',4''-(4-propyl-[1H]-pyrazole-1,3,5-triyl)trisphenol (ERα agonist) or G1 (GPR30 agonist), inhibited microglial proliferation. The antiproliferative effects of estradiol, but not 2-OE or 2-ME, were partially reversed by ICI-182,780 (ERα/β antagonist) but not by 1,3-bis(4-hydroxyphenyl)-4-methyl-5-[4-(2-piperidinylethoxy)phenol]-1H-pyrazole (ERα antagonist) or G15 (GPR30 antagonist). Lipopolysaccharide increased microglia iNOS and COX-2 expression and phagocytosing activity of microglia; these effects were inhibited by 2-ME. We conclude that in microglia, 2-ME inhibits proliferation, proinflammatory responses, and phagocytosis. 2-ME partially mediates the effects of estradiol via ER-independent mechanisms involving sequential metabolism of estradiol to 2-OE and 2-ME. 2-ME could be of potential therapeutic use in postischemic stroke injuries. Interindividual differences in estradiol metabolism might affect the individual's ability to recover from stroke.
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Affiliation(s)
- Sara A Schaufelberger
- Department of Reproductive Endocrinology, University Hospital Zurich, Zurich, Switzerland
| | - Marinella Rosselli
- Department of Reproductive Endocrinology, University Hospital Zurich, Zurich, Switzerland
| | - Federica Barchiesi
- Department of Reproductive Endocrinology, University Hospital Zurich, Zurich, Switzerland
| | - Delbert G Gillespie
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Edwin K Jackson
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Raghvendra K Dubey
- Department of Reproductive Endocrinology, University Hospital Zurich, Zurich, Switzerland; Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland; and Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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Bonato L, Quinelato V, Pinheiro A, Amaral M, de Souza F, Lobo J, Aguiar D, Augusto L, Vieira A, Salles J, Cossich V, Guimarães J, de Gouvêa C, Granjeiro J, Casado P. ESRRB polymorphisms are associated with comorbidity of temporomandibular disorders and rotator cuff disease. Int J Oral Maxillofac Surg 2016; 45:323-31. [DOI: 10.1016/j.ijom.2015.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 01/12/2023]
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The association of Asn453Ser polymorphism in CYP1B1 gene with selected somatic and biochemical variables in Slovak women of different menopause status. Menopause 2016; 23:577-83. [PMID: 26757271 DOI: 10.1097/gme.0000000000000565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to determine the relationship between the CYP1B1 Asn453Ser polymorphism and selected somatic and biochemical variables, and atherogenic indices in premenopausal and postmenopausal Slovak women. METHODS The studied sample consisted of 334 women; 188 premenopausal (mean age 45.73 ± 3.77 y) and 146 postmenopausal women (mean age 53.51 ± 4.52 y). The participants were interviewed during their medical examination. They provided a blood sample for biochemical analysis and DNA genotyping. RESULTS The frequency of rare allele Ser (CYP1B14) was equal to 0.125 in premenopausal and 0.168 in postmenopausal women. The observed genotype frequencies were in the Hardy-Weinberg equilibrium. The Asn453Ser genotype showed statistically significant associations with a high-density lipoprotein (HDL-cholesterol) and apolipoprotein A1 levels in postmenopausal women. The mean values of the above mentioned variables were significantly higher in women carrying the Ser/Ser genotype. The general linear model analysis confirmed the results of the additive genetic model in postmenopausal women and demonstrated significant association of the Asn453Ser polymorphism with HDL-cholesterol levels also in premenopausal women (P = 0.041). CONCLUSIONS This pilot study revealed a significant association of the CYP1B1 Asn453Ser genotypes with the plasma levels of HDL-cholesterol and of apolipoprotein A1 in postmenopausal women and less unequivocal findings in premenopausal women. Because of study limitations, these results need to be examined in a larger study.
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Riley CP, Mathieu RE, Wiley C. Simultaneous Quantitation of Estradiol and Estrone in Serum Using Liquid Chromatography Mass Spectrometry. Methods Mol Biol 2016; 1378:87-97. [PMID: 26602121 DOI: 10.1007/978-1-4939-3182-8_11] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Accurate measurement of the endogenous estrogens, estrone (E1) and estradiol (E2), is important in the clinical diagnosis and monitoring of multiple disorders. Typically, given the efficacy and low cost, radioimmunoassays (RIA) and enzyme-linked immunoassays (EIA) are used to quantify these hormones in biological samples. Unfortunately, at low levels these assays lack the necessary sensitivity and specificity for diagnosis of certain disorders in adult and pediatric endocrinology and oncology. In response to this need, we developed a fast and sensitive high performance liquid chromatography negative electrospray ionization tandem mass spectrometry (LC-MS/MS) method to measure serum estrone (E1) and estradiol (E2) without chemical derivatization. Samples are spiked with a stable isotopic carbon thirteen ((13)C) labeled internal standard and the estrogens are isolated by liquid-liquid extraction (LLE) with hexane:Methyl-tert-butyl ether (MTBE) (9:1). Following centrifugation and dry down samples are reconstituted with deionized water, and separated on a C18 reverse phase column. The analytes are quantified using a six point calibration curve with a linearity of 2.6-625 pg/ml and with a variability of less than 8 % across analytical range.
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Affiliation(s)
- Catherine P Riley
- Pathology Associates Medical Laboratories (PAML), Spokane, WA, USA. .,National Reference Laboratory, Pathology Associates Medical Laboratories (PAML), 110 W. Cliff Drive, Spokane, WA, 99204, USA.
| | | | - Carmen Wiley
- Pathology Associates Medical Laboratories (PAML), Spokane, WA, USA
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Reuquén P, Oróstica ML, Rojas I, Díaz P, Parada-Bustamante A, Orihuela PA. Estradiol increases IP3 by a nongenomic mechanism in the smooth muscle cells from the rat oviduct. Reproduction 2015; 150:331-41. [PMID: 26159830 DOI: 10.1530/rep-15-0137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 07/09/2015] [Indexed: 12/20/2022]
Abstract
Estradiol (E2) accelerates egg transport by a nongenomic action, requiring activation of estrogen receptor (ER) and successive cAMP and IP3 production in the rat oviduct. Furthermore, E2 increases IP3 production in primary cultures of oviductal smooth muscle cells. As smooth muscle cells are the mechanical effectors for the accelerated oocyte transport induced by E2 in the oviduct, herein we determined the mechanism by which E2 increases IP3 in these cells. Inhibition of protein synthesis by Actinomycin D did not affect the E2-induced IP3 increase, although this was blocked by the ER antagonist ICI182780 and the inhibitor of phospholipase C (PLC) ET-18-OCH3. Immunoelectron microscopy for ESR1 or ESR2 showed that these receptors were associated with the plasma membrane, indicating compatible localization with E2 nongenomic actions in the smooth muscle cells. Furthermore, ESR1 but not ESR2 agonist mimicked the effect of E2 on the IP3 level. Finally, E2 stimulated the activity of a protein associated with the contractile tone, calcium/calmodulin-dependent protein kinase II (CaMKII), in the smooth muscle cells. We conclude that E2 increases IP3 by a nongenomic action operated by ESR1 and that involves the activation of PLC in the smooth muscle cells of the rat oviduct. This E2 effect is associated with CaMKII activation in the smooth muscle cells, suggesting that IP3 and CaMKII are involved in the contractile activity necessary to accelerate oviductal egg transport.
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Affiliation(s)
- Patricia Reuquén
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - María L Oróstica
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Israel Rojas
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Patricia Díaz
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Alexis Parada-Bustamante
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
| | - Pedro A Orihuela
- Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile Laboratorio de Inmunología de la ReproducciónFacultad de Química y Biología, Universidad de Santiago de ChileCentro para el Desarrollo en Nanociencia y Nanotecnología-CEDENNAInstituto de Investigaciones Materno-InfantilUniversidad de Chile, Alameda 3363, Casilla 40, Correo 33 Santiago, Chile
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Ovariectomy-induced reductions in endothelial SK3 channel activity and endothelium-dependent vasorelaxation in murine mesenteric arteries. PLoS One 2014; 9:e104686. [PMID: 25105912 PMCID: PMC4126749 DOI: 10.1371/journal.pone.0104686] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 07/14/2014] [Indexed: 12/15/2022] Open
Abstract
Mesenteric artery endothelium expresses both small (SK3)- and intermediate (IK1)-conductance Ca(2+)-activated K(+) (KCa) channels whose activity modulates vascular tone via endothelium-dependent hyperpolarization (EDH). Two other major endothelium-dependent vasodilation pathways utilize nitric oxide (NO) and prostacyclin (PGI2). To examine how ovariectomy (ovx) affects the basal activity and acetylcholine (ACh)-induced activity of each of these three pathways to vasorelaxation, we used wire myograph and electrophysiological recordings. The results from functional studies using isolated murine mesenteric arteries show that ovx reduces ACh-induced endothelium-dependent vasodilation due to decreased EDH and NO contributions, although the contribution of PGI2 is upregulated. Both endothelial SK3 and IK1 channels are functionally coupled to TRPV4 (transient receptor potential, vanilloid type 4) channels: the activation of TRPV4 channels activates SK3 and IK1 channels, leading to EDH-mediated vascular relaxation. The decreased EDH-mediated vasorelaxation in ovx vessels is due to reduced SK3 channel contribution to the pathway. Further, whole-cell recordings using dispersed endothelial cells also show reduced SK3 current density in ovx endothelial cells. Consequently, activation of TRPV4 channels induces smaller changes in whole-cell current density. Thus, ovariectomy leads to a reduction in endothelial SK3 channel activity thereby reducing the SK3 contribution to EDH vasorelaxation.
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Interaction between the Val158Met catechol-O-methyltransferase gene variant and second-generation antipsychotic treatment on blood pressure in children. THE PHARMACOGENOMICS JOURNAL 2014; 15:95-100. [DOI: 10.1038/tpj.2014.35] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 05/01/2014] [Accepted: 06/04/2014] [Indexed: 01/11/2023]
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Pertegal M, Fenoy FJ, Bonacasa B, Mendiola J, Delgado JL, Hernández M, Salom MG, Bosch V, Hernández I. 2-methoxyestradiol plasma levels are associated with clinical severity indices and biomarkers of preeclampsia. Reprod Sci 2014; 22:198-206. [PMID: 24899468 DOI: 10.1177/1933719114537716] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We investigated whether clinical severity indices and biomarkers for preeclampsia (PE) are associated with low plasmatic 2-methoxyestradiol (2ME) in the third trimester of gestation. Blood was collected from 53 women with PE and 73 control pregnant women before parturition. The concentration of 2ME was significantly higher in controls than in patients with PE (2906.43 ± 200.69 pg/mL vs 1818.41 ± 189.25 pg/mL). The risk of PE decreased as 2ME levels increased. The 2ME values were negatively correlated with systolic peak arterial pressure and proteinuria in PE. Additionally, those women with PE with lower 2ME had a more serious clinical situation and needed a more aggressive therapy. Finally, 2ME levels (in patients with PE and total population) were significantly correlated with concentrations of soluble fms-like tyrosine kinase 1 and placental growth factor . Summarizing, patients with PE had lower 2ME levels that were correlated with different clinical indices and biomarkers of severity, indicating that 2ME could be taken into account for the clinical management of this syndrome.
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Affiliation(s)
- Miriam Pertegal
- Department of Gynaecology and Obstetrics, "Virgen de la Arrixaca" Clinical Universitary Hospital, El Palmar (Murcia), Spain
| | - Francisco J Fenoy
- Department of Physiology, School of Medicine, University of Murcia, Espinardo (Murcia) Spain
| | - Barbara Bonacasa
- Department of Physiology, School of Medicine, University of Murcia, Espinardo (Murcia) Spain
| | - Jaime Mendiola
- Division of Preventive Medicine and Public Health, Department of Health and Social Sciences, School of Medicine, University of Murcia, Espinardo (Murcia), Spain
| | - Juan L Delgado
- Department of Gynaecology and Obstetrics, "Virgen de la Arrixaca" Clinical Universitary Hospital, El Palmar (Murcia), Spain
| | - Moises Hernández
- Department of Physiology, School of Medicine, University of Murcia, Espinardo (Murcia) Spain
| | - Miguel G Salom
- Department of Physiology, School of Medicine, University of Murcia, Espinardo (Murcia) Spain
| | - Vicente Bosch
- Division of Preventive Medicine and Public Health, Department of Health and Social Sciences, School of Medicine, University of Murcia, Espinardo (Murcia), Spain Department of Pediatrics, "Virgen de la Arrixaca" Clinical Universitary Hospital, El Palmar (Murcia), Spain
| | - Isabel Hernández
- Department of Physiology, School of Medicine, University of Murcia, Espinardo (Murcia) Spain
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Lahm T, Tuder RM, Petrache I. Progress in solving the sex hormone paradox in pulmonary hypertension. Am J Physiol Lung Cell Mol Physiol 2014; 307:L7-26. [PMID: 24816487 DOI: 10.1152/ajplung.00337.2013] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a devastating and progressive disease with marked morbidity and mortality. Even though being female represents one of the most powerful risk factors for PAH, multiple questions about the underlying mechanisms remain, and two "estrogen paradoxes" in PAH exist. First, it is puzzling why estrogens have been found to be protective in various animal models of PAH, whereas PAH registries uniformly demonstrate a female susceptibility to the disease. Second, despite the pronounced tendency for the disease to develop in women, female PAH patients exhibit better survival than men. Recent mechanistic studies in classical and in novel animal models of PAH, as well as recent studies in PAH patients, have significantly advanced the field. In particular, it is now accepted that estrogen metabolism and receptor signaling, as well as estrogen interactions with key pathways in PAH development, appear to be potent disease modifiers. A better understanding of these interactions may lead to novel PAH therapies. It is the purpose of this review to 1) review sex hormone synthesis, metabolism, and receptor physiology; 2) assess the context in which sex hormones affect PAH pathogenesis; 3) provide a potential explanation for the observed estrogen paradoxes and gender differences in PAH; and 4) identify knowledge gaps and future research opportunities. Because the majority of published studies investigated 17β-estradiol and/or its metabolites, this review will primarily focus on pulmonary vascular and right ventricular effects of estrogens. Data for other sex hormones will be discussed very briefly.
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Affiliation(s)
- Tim Lahm
- Division of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, and Richard L. Roudebush VA Medical Center; Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; and
| | - Rubin M Tuder
- Program in Translational Lung Research, Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado, School of Medicine, Denver, Colorado
| | - Irina Petrache
- Division of Pulmonary, Allergy, Critical Care, Occupational and Sleep Medicine, and Richard L. Roudebush VA Medical Center; Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana; and
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Gaikwad NW. Mass spectrometry evidence for formation of estrogen-homocysteine conjugates: estrogens can regulate homocysteine levels. Free Radic Biol Med 2013; 65:1447-1454. [PMID: 23928335 DOI: 10.1016/j.freeradbiomed.2013.07.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 07/09/2013] [Accepted: 07/26/2013] [Indexed: 12/17/2022]
Abstract
Homocysteine (HCys), a sulfur-containing amino acid, is formed during the metabolism of methionine. An imbalance between the rate of production and the use of HCys during methionine metabolism can result in an increase in the plasma and urinary levels of HCys. HCys has been shown to be toxic to vascular endothelial cells through several pathways. Many earlier clinical studies have revealed an association between plasma HCys and cardiovascular and other diseases. In contrast, estrogens are suggested to lower the risk of cardiovascular disease. Several studies indicate that estrogen metabolites could be responsible for cardiovascular protection. It has been demonstrated that electrophilic estrogen quinones, E1(E2)-2,3-Q and E1(E2)-3,4-Q, can alkylate DNA as well as form conjugates with glutathione. I hypothesize that estrogen quinones generated in situ by oxidative enzymes, metal ions, or molecular oxygen can interact with HCys to form conjugates. This in turn could lower the levels of toxic HCys as well as quenching the reactive estrogen quinones, resulting in cardiovascular protective effects. To test the feasibility of a protective estrogen-HCys pathway, estrogen quinones were treated with HCys. Tandem mass spectrometry analysis of the assay mixture shows the formation of estrogen-HCys conjugates. Furthermore, incubation of catechol estrogens with myeloperoxidase (MPO) in the presence of HCys resulted in the formation of respective estrogen-HCys conjugates. The identities of estrogen-HCys conjugates in MPO assay extracts were confirmed by comparing them to pure synthesized estrogen-HCys standards. I propose that through conjugation estrogens could chemically regulate HCys levels; moreover these conjugates could be used as potential biomarkers in determining health.
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Affiliation(s)
- Nilesh W Gaikwad
- Department of Nutrition and Department of Environmental Toxicology, University of California at Davis, Davis, CA 95616, USA.
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Cancer morbidity in rheumatoid arthritis: role of estrogen metabolites. BIOMED RESEARCH INTERNATIONAL 2013; 2013:748178. [PMID: 24151619 PMCID: PMC3789363 DOI: 10.1155/2013/748178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 08/17/2013] [Indexed: 12/21/2022]
Abstract
Estrogen metabolites have been implicated in rheumatoid arthritis (RA) and cancer, although the mechanism remains unestablished. Some estrogen metabolites, which are used for the assessment of cancer risk, play an important role in RA. The pathways by which malignancies associated with RA remain elusive. Possible mechanism involves enzymatic or nonenzymatic oxidation of estrogen into catecholestrogen metabolites through semiquinone and quinone redox cycle to produce free radicals that can cause DNA modifications. Modifications of DNA alter its immunogenicity and trigger various immune responses leading to elevated levels of cancer and RA antibodies. However, the role of different estrogen metabolites as a mediator of immune response cannot be ruled out in various immune-related diseases.
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Hernandez M, Hernandez I, Rodriguez F, Pertegal M, Bonacasa B, Salom MG, Quesada T, Fenoy FJ. Endothelial dysfunction in gestational hypertension induced by catechol-O-methyltransferase inhibition. Exp Physiol 2013; 98:856-66. [DOI: 10.1113/expphysiol.2012.067389] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Pezeshki Z, Nematbakhsh M, Nasri H, Talebi A, Pilehvarian AA, Safari T, Eshraghi-Jazi F, Haghighi M, Ashrafi F. Evidence against protective role of sex hormone estrogen in Cisplatin-induced nephrotoxicity in ovarectomized rat model. Toxicol Int 2013; 20:43-7. [PMID: 23833437 PMCID: PMC3702126 DOI: 10.4103/0971-6580.111568] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Cisplatin (CP) is an effective drug in cancer therapy to treat the solid tumors, but it is accompanied with nephrotoxicity. The protective effect of estrogen in cardiovascular diseases is well-documented; but its nephron-protective effect against CP-induced nephrotoxicity is not completely understood. MATERIALS AND METHODS Thirty ovarectomized Wistar rats were divided in to five groups. Groups 1-3 received different doses of estradiol valerate (0.5, 2.5 and 10 mg/kg/week) in sesame oil for 4 weeks, and at the end of week 3, a single dose of CP (7 mg/kg, intraperitoneal [IP]) was administrated. Group 4 (positive control) received the same regimen as group 1-3 without estradiol without vehicle. The negative control group (Group 5) received sesame oil during the study. The animals were sacrificed 1 week after CP injection for histopathological studies. RESULTS The serum level of blood urea nitrogen and creatinine, kidney tissue damage score (KTDS), kidney weight and percentage of body weight change in CP-treated groups significantly increased (P < 0.05), however, there were no significant differences detected between the estrogen-treated groups (Groups 1-3) and the positive control group (Group 4). Although, estradiol administration enhanced the serum level of nitrite, it was not affected by CP. Finally, significant correlation between KTDS and kidney weight was detected (r (2) = 0.63, P < 0.01). CONCLUSION Estrogen is not nephron-protective against CP-induced nephrotoxicity. Moreover, it seems that the mechanism may be related to estrogen-induced oxidative stress in the kidney, which may promote the nephrotoxicity.
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Affiliation(s)
- Zahra Pezeshki
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Basic Sciences Isfahan University of Payam Noor, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran
- Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hamid Nasri
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Kidney Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Tahereh Safari
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Eshraghi-Jazi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Haghighi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farzaneh Ashrafi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
- Department of Internal Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
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Demirdöğen BC, Adali AÇ, Bek S, Demirkaya Ş, Adali O. Cytochrome P4501A1 genotypes and smoking- and hypertension-related ischemic stroke risk. Hum Exp Toxicol 2012; 32:483-91. [PMID: 23111888 DOI: 10.1177/0960327112464667] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study aimed to determine whether the coding (A4889G) and noncoding region (T6235C) polymorphisms of the gene coding for cytochrome P4501A1 (CYP1A1), a xenobiotic-metabolizing enzyme responsible for the metabolism of carcinogenic polycyclic aromatic hydrocarbons, are involved in the pathogenesis of ischemic stroke in Turkish population. Study group consisted of 226 ischemic stroke patients and 113 controls. Genotypes were attained by allele-specific polymerase chain reaction (PCR) for A4889G and PCR/restriction fragment length polymorphism analysis for T6235C. Frequency of 6235C allele was significantly lower in patients (0.151) compared with controls (0.226, P = 0.015). Prevalence of hypertension and hypertension-associated ischemic stroke risk was lower for 6235C allele carriers. This allele decreased ischemic stroke risk twofold (adjusted odds ratio = 0.48, P = 0.005). There was almost no difference in 4889G allele frequencies in patients (0.445) and controls (0.425). However, prevalence of hypertension was lower in 4889G allele carriers when compared with the wild-type genotypes. In addition, risk of ischemic stroke for smoker and hypertensive individuals was lower when they have at least one 4889G allele. The present study demonstrated that CYP1A1 genetic variants contribute to interindividual variability in smoking- and hypertension-induced ischemic stroke risk.
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Affiliation(s)
- B Can Demirdöğen
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey.
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Vitamin E, Vitamin C, or Losartan Is Not Nephroprotectant against Cisplatin-Induced Nephrotoxicity in Presence of Estrogen in Ovariectomized Rat Model. Int J Nephrol 2012; 2012:284896. [PMID: 23056943 PMCID: PMC3463913 DOI: 10.1155/2012/284896] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 08/14/2012] [Accepted: 08/20/2012] [Indexed: 12/14/2022] Open
Abstract
Background. The nephroprotective effect of vitamins E and C or losartan against cisplatin (CP)- induced nephrotoxicity when they are accompanied by estrogen was investigated. Methods. The ovariectomized rats received estradiol valerate for two weeks. At the end of the first week, a single dose of CP (7 mg/kg, IP) was also administered, and they received placebo (group 1), vitamin E (group 2), vitamin C (group 3), or losartan (group 4) every day during the second week, and they were compared with another three control groups. Results. CP alone increased the serum levels of blood urea nitrogen (BUN), creatinine (Cr), and kidney tissue damage score (KTDS), significantly (P < 0.05), however at the presence of estradiol and CP, vitamin C, vitamin E, or losartan not only did not decrease these parameters, but also increased them significantly (P < 0.05). The serum level of superoxidase dismutase (SOD) was reduced by CP (P < 0.05), but it was increased when estradiol or estradiol plus vitamin C or losartan were added (P < 0.05). Conclusion. The particular pharmacological dose of estrogen used in this study abolish the nephroprotective effects vitamins C and E or losartan against CP-induced nephrotoxicity.
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Wu H, Xu L, Chen J, Hu J, Yu S, Hu G, Huang L, Chen X, Yuan X, Li G. Association of estrogen receptor beta variants and serum levels of estradiol with risk of colorectal cancer: a case control study. BMC Cancer 2012; 12:276. [PMID: 22759347 PMCID: PMC3472165 DOI: 10.1186/1471-2407-12-276] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 07/03/2012] [Indexed: 11/12/2022] Open
Abstract
Background Endogenous estrogens may play a vital role in colorectal tumorigenesis. Estrogen receptor beta is the predominant subtype which mediates the biological effect of estrogens, while loss of expression of estrogen receptor beta has been indicated as a common step in the development of colorectal cancer (CRC). Epidemiological studies have revealed several functional polymorphisms of estrogen receptor beta (ESR2) for cancer risk, but relevant study in CRC is limited, particularly in men. This study aimed to investigate the association of circulating estradiol and variations of ESR2 with CRC risk in men. Methods We initiated a case–control study consisting of 390 patients with CRC and 445 healthy controls in men only. We genotyped ESR2 single nucleotide polymorphisms (SNPs) rs1256049 and rs4986938 and measured serum estradiol concentration using chemilluminescence immunoassay. Multivariable logistic regression model was performed to evaluate the associations between these variables and CRC risk. Results ESR2 rs1256049 CT/TT genotypes were associated with reduced risk of CRC (odds ratio [OR], 0.7, 95% confidence interval [CI], 0.5–1.0), while rs4986938 CT/TT genotypes were associated with increased risk of CRC (OR, 1.5, 95% CI, 1.0–2.1). In addition, the CRC risk increased with the number of risk genotypes of these two SNPs in a dose–response manner (Ptrend, 0.003). Specifically, subjects carrying risk genotypes of both SNPs had the highest risk of CRC (OR, 2.0, 95% CI, 1.3–3.3.). Moreover, serum estradiol concentration alone was associated with risk of CRC in men (OR, 1.2, 95% CI, 1.0–1.3). However, individuals presenting both rs4986938 CT/TT genotypes and high level of serum estradiol had a high risk of CRC (OR, 2.3, 95% CI, 1.4–3.9), compared with those presenting CC genotype and low level of serum estradiol. The similar joint results were not observed for SNP rs1256049. Conclusions These results suggest that endogenous estrogen and genetic variations in ESR2 may individually, or more likely jointly, affect CRC risk in male Han Chinese population, while larger studies are needed to validate our findings.
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Affiliation(s)
- Huanlei Wu
- Department of Oncology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Wilhelmson AS, Bourghardt-Fagman J, Gogos JA, Fogelstrand P, Tivesten A. Catechol-O-methyltransferase is dispensable for vascular protection by estradiol in mouse models of atherosclerosis and neointima formation. Endocrinology 2011; 152:4683-90. [PMID: 22009725 DOI: 10.1210/en.2011-1458] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Estradiol is converted to the biologically active metabolite 2-methoxyestradiol via the activity of the enzyme catechol-O-methyltransferase (COMT). Exogenous administration of both estradiol and 2-methoxyestradiol reduces experimental atherosclerosis and neointima formation, and COMT-dependent formation of 2-methoxyestradiol likely mediates the antimitogenic effect of estradiol on smooth muscle cells in vitro. This study evaluated whether 2-methoxyestradiol mediates the vasculoprotective actions of estradiol in vivo. Wild-type (WT) and COMT knockout (COMTKO) mice on an apolipoprotein E-deficient background were gonadectomized and treated with estradiol or placebo. Exogenous estradiol reduced atherosclerotic lesion formation in both females (WT, -78%; COMTKO, -82%) and males (WT, -48%; COMTKO, -53%) and was equally effective in both genotypes. We further evaluated how exogenous estradiol affected neointima formation after ligation of the carotid artery in ovariectomized female mice; estradiol reduced intimal hyperplasia to a similar extent in both WT (-80%) and COMTKO (-77%) mice. In ovarian-intact female COMTKO mice, atherosclerosis was decreased (-25%) compared with WT controls. In conclusion, the COMT enzyme is dispensable for vascular protection by exogenous estradiol in experimental atherosclerosis and neointima formation in vivo. Instead, COMT deficiency in virgin female mice with intact endogenous production of estradiol results in relative protection against atherosclerosis.
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Affiliation(s)
- Anna S Wilhelmson
- Wallenberg Laboratory for Cardiovascular Research, Institute of Medicine, Sahlgrenska University Hospital, University of Gothenburg, Bruna Stråket 16, SE-413 45 Gothenburg, Sweden
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Schwab K, Neumann B, Vignon-Zellweger N, Fischer A, Stein R, Jungblut PR, Scheler C, Theuring F. Dietary phytoestrogen supplementation induces sex differences in the myocardial protein pattern of mice: A comparative proteomics study. Proteomics 2011; 11:3887-904. [DOI: 10.1002/pmic.201000785] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 05/16/2011] [Accepted: 07/11/2011] [Indexed: 01/09/2023]
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Salehzadeh F, Rune A, Osler M, Al-Khalili L. Testosterone or 17{beta}-estradiol exposure reveals sex-specific effects on glucose and lipid metabolism in human myotubes. J Endocrinol 2011; 210:219-29. [PMID: 21632903 DOI: 10.1530/joe-10-0497] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Changes in sex hormone levels with aging or illness may lead to metabolic disorders. Moreover, the ratio changes in men versus women may have distinct pathological responses. Since little is known about sex hormone action on muscle metabolism, we examined the role of testosterone or 17β-estradiol (E(2)) in metabolism and investigated whether either hormone may mediate a sex-specific effect. Myotubes from postmenopausal women and age-matched male donors were treated with 10 nM testosterone or E(2) for 4 days, and assays were performed to measure metabolic readouts, signal transduction, and mRNA expression. Testosterone and E(2) treatment enhanced insulin-stimulated glucose incorporation into glycogen and AKT phosphorylation in myotubes from female donors, highlighting a sex-specific role of sex hormone in glucose metabolism. Testosterone treatment increased palmitate oxidation in myotubes from both female and male donors, while E(2) enhanced palmitate oxidation in myotubes from male donors only. Testosterone-mediated increase in palmitate oxidation was attenuated at the presence of androgen receptor antagonist, which may indicate a role of nuclear steroid receptor in muscle lipid oxidation. Testosterone treatment increased mRNA expression of the insulin receptor substrate 2 in myotubes from male and female donors, whereas it increased mRNA expression of glycogen synthase 1 only in myotubes from male donors. E(2) treatment increased pyruvate dehydrogenase kinase 4 mRNA expression in myotubes from female donors. Thus, our data suggest that testosterone or E(2) modulates muscle glucose and lipid metabolism and may play a role in metabolism in a sex-dependent manner.
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Affiliation(s)
- Firoozeh Salehzadeh
- Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 77 Stockholm, Sweden
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Kushnir MM, Rockwood AL, Roberts WL, Yue B, Bergquist J, Meikle AW. Liquid chromatography tandem mass spectrometry for analysis of steroids in clinical laboratories. Clin Biochem 2011; 44:77-88. [DOI: 10.1016/j.clinbiochem.2010.07.008] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Revised: 06/28/2010] [Accepted: 07/04/2010] [Indexed: 01/18/2023]
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Jessup JA, Lindsey SH, Wang H, Chappell MC, Groban L. Attenuation of salt-induced cardiac remodeling and diastolic dysfunction by the GPER agonist G-1 in female mRen2.Lewis rats. PLoS One 2010; 5:e15433. [PMID: 21082029 PMCID: PMC2972725 DOI: 10.1371/journal.pone.0015433] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Accepted: 09/21/2010] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION The G protein-coupled estrogen receptor (GPER) is expressed in various tissues including the heart. Since the mRen2.Lewis strain exhibits salt-dependent hypertension and early diastolic dysfunction, we assessed the effects of the GPER agonist (G-1, 40 nmol/kg/hr for 14 days) or vehicle (VEH, DMSO/EtOH) on cardiac function and structure. METHODS Intact female mRen2.Lewis rats were fed a normal salt (0.5% sodium; NS) diet or a high salt (4% sodium; HS) diet for 10 weeks beginning at 5 weeks of age. RESULTS Prolonged intake of HS in mRen2.Lewis females resulted in significantly increased blood pressure, mildly reduced systolic function, and left ventricular (LV) diastolic compliance (as signified by a reduced E deceleration time and E deceleration slope), increased relative wall thickness, myocyte size, and mid-myocardial interstitial and perivascular fibrosis. G-1 administration attenuated wall thickness and myocyte hypertrophy, with nominal effects on blood pressure, LV systolic function, LV compliance and cardiac fibrosis in the HS group. G-1 treatment significantly increased LV lusitropy [early mitral annular descent (e')] independent of prevailing salt, and improved the e'/a' ratio in HS versus NS rats (P<0.05) as determined by tissue Doppler. CONCLUSION Activation of GPER improved myocardial relaxation in the hypertensive female mRen2.Lewis rat and reduced cardiac myocyte hypertrophy and wall thickness in those rats fed a high salt diet. Moreover, these advantageous effects of the GPER agonist on ventricular lusitropy and remodeling do not appear to be associated with overt changes in blood pressure.
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Affiliation(s)
- Jewell A. Jessup
- The Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
| | - Sarah H. Lindsey
- The Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
| | - Hao Wang
- The Department of Anesthesiology, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
| | - Mark C. Chappell
- The Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
- The Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
| | - Leanne Groban
- The Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
- The Department of Anesthesiology, Wake Forest University School of Medicine, Winston Salem, North Carolina, United States of America
- * E-mail:
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Zhao A, Cheng Y, Li X, Li Q, Wang L, Xu J, Xiang Y, Xing Q, He L, Zhao X. Promoter hypomethylation of COMT in human placenta is not associated with the development of pre-eclampsia. Mol Hum Reprod 2010; 17:199-206. [PMID: 21047975 DOI: 10.1093/molehr/gaq092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Disruption of the Catechol-O-methyltransferase (COMT) gene has been shown to be involved in pre-eclampsia (PE). To investigate whether two promoters of the COMT gene are differentially regulated by methylation in PE patients, we have analyzed the genomic DNA extracted from placenta (cases n = 16; controls n = 21), maternal peripheral blood (cases n = 4; controls n = 6) and umbilical cord blood (cases n = 8; controls n = 8) of women with PE and women with normal pregnancy. Bisulfite sequencing identified the predominantly unmethylated MB-COMT promoter in placenta, maternal peripheral blood and umbilical cord blood samples (PE and control). Subsequent quantitative MassArray data confirmed a significant tissue-specific hypomethylation of the S-COMT promoter in placenta (mean = 28.6%) when compared with its densely methylated patterns in blood samples (mean = 74.5%, P < 0.001), consistent with the sequencing data. However, no PE-specific methylation difference was found between cases and controls either in placenta or in blood samples. Moreover, none of the clinical characteristics had an effect on the methylation status of the S-COMT promoter. This study does not support a causal link between methylation regulation of COMT promoters and PE. However, the observed placenta-specific S-COMT promoter may be a potential marker for early prediction of PE in maternal plasma, although this remains to be further evaluated.
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Affiliation(s)
- Arman Zhao
- Institute of Biomedical Sciences, Fudan University, 138 Yixueyuan Road, Shanghai 200032, China
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Barchiesi F, Lucchinetti E, Zaugg M, Ogunshola OO, Wright M, Meyer M, Rosselli M, Schaufelberger S, Gillespie DG, Jackson EK, Dubey RK. Candidate genes and mechanisms for 2-methoxyestradiol-mediated vasoprotection. Hypertension 2010; 56:964-72. [PMID: 20921434 DOI: 10.1161/hypertensionaha.110.152298] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
2-Methoxyestradiol (2-ME; estradiol metabolite) inhibits vascular smooth muscle cell (VSMC) growth and protects against atherosclerosis and vascular injury; however, the mechanisms by which 2-ME induces these actions remain obscure. To assess the impact of 2-ME on biochemical pathways regulating VSMC biology, we used high-density oligonucleotide microarrays to identify differentially expressed genes in cultured human female aortic VSMCs treated with 2-ME acutely (4 hours) or long term (30 hours). Both single gene analysis and Gene Set Enrichment Analysis revealed 2-ME-induced downregulation of genes involved in mitotic spindle assembly and function in VSMCs. Also, Gene Set Enrichment Analysis identified effects of 2-ME on genes regulating cell-cycle progression, cell migration/adhesion, vasorelaxation, inflammation, and cholesterol metabolism. Transcriptional changes were associated with changes in protein expression, including inhibition of cyclin D1, cyclin B1, cyclin-dependent kinase 6, cyclin-dependent kinase 4, tubulin polymerization, cholesterol and steroid synthesis, and upregulation of cyclooxygenase 2 and matrix metalloproteinase 1. Microarray data suggested that 2-ME may activate peroxisome proliferator-activated receptors (PPARs) in VSMCs, and 2-ME has structural similarities with rosiglitazone (PPARγ agonist). However, our finding of weak activation and lack of binding of 2-ME to PPARs suggests that 2-ME may modulate PPAR-associated genes via indirect mechanisms, potentially involving cyclooxygenase 2. Indeed, the antimitogenic effects of 2-ME at concentrations that do not inhibit tubulin polymerization were blocked by the PPAR antagonist GW9662 and the cyclooxygenase 2 inhibitor NS398. Finally, we demonstrated that 2-ME inhibited hypoxia-inducible factor 1α. Identification of candidate genes that are positively or negatively regulated by 2-ME provides important leads to investigate and better understand the mechanisms by which 2-ME induces its vasoprotective actions.
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Affiliation(s)
- Federica Barchiesi
- Department of Obstetrics and Gynecology, Clinic for Reproductive Endocrinology, University Hospital Zurich, Zurich, Switzerland
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Dubey RK, Jackson EK, Gillespie DG, Zacharia LC, Imthurn B, Rosselli M. Resveratrol, a red wine constituent, blocks the antimitogenic effects of estradiol on human female coronary artery smooth muscle cells. J Clin Endocrinol Metab 2010; 95:E9-17. [PMID: 20534756 PMCID: PMC2936070 DOI: 10.1210/jc.2010-0460] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
CONTEXT Antimitogenic effects of estradiol on vascular smooth muscle cells (VSMCs) may be cardioprotective, and these effects are mediated by estrogen receptor-alpha-dependent and -independent mechanisms, with the latter involving the conversion of estradiol to 2-hydroxyestradiol/2-methoxyestradiol by CYP450. Because resveratrol inhibits CYP450 and is an estrogen-receptor-alpha antagonist, resveratrol may abrogate the antimitogenic effects of estradiol. OBJECTIVE The objective of the study was to examine the interaction of pharmacologically relevant concentrations of resveratrol with estradiol, 2-hydroxyestradiol, and 2-methoxyestradiol in human female coronary artery VSMCs. METHODS AND RESULTS In human female coronary VSMCs, resveratrol (0.1-10 microm) alone did not influence serum-induced DNA or collagen synthesis or cell proliferation or migration; however, resveratrol abrogated the inhibitory effects of estradiol, but not 2-hydroxyestradiol or 2-methoxyestradiol, on these responses. Resveratrol also abrogated the inhibitory effects of estradiol on positive growth regulators (cyclin A, cyclin D, MAPK phosphorylation) and the stimulatory effects of estradiol on negative growth regulators (p21, p27). In microsomes and cells, dietarily relevant levels of resveratrol (0.001-1 microm) inhibited the metabolism of estradiol to 2-hydroxestradiol/2-methoxyestradiol. Propylpyrazoletriol (estrogen receptor-alpha agonist, 100 nmol/liter), but not diarylpropionitrile (estrogen receptor-beta agonist, 10 nmol/liter), inhibited VSMC mitogenesis, and this effect was blocked by resveratrol (5 micromol/liter). Higher concentrations (>25-50 microm) of resveratrol, never attainable in vivo, inhibited VSMC growth, an effect blocked by GW9662 (peroxisomal proliferator-activated receptor-gamma antagonist). CONCLUSION In conclusion, dietarily relevant levels of resveratrol abrogate the antimitogenic effects of estradiol by inhibiting CYP450-mediated estradiol metabolism and blocking estrogen receptor-alpha.
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MESH Headings
- Antimitotic Agents/antagonists & inhibitors
- Cell Proliferation/drug effects
- Cells, Cultured
- Coronary Vessels/drug effects
- Coronary Vessels/growth & development
- Coronary Vessels/metabolism
- Dose-Response Relationship, Drug
- Drug Evaluation, Preclinical
- Estradiol/pharmacology
- Female
- Hormone Antagonists/pharmacology
- Humans
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/growth & development
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/physiology
- Osmolar Concentration
- Resveratrol
- Sex Factors
- Stilbenes/pharmacology
- Vitis/chemistry
- Wine
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Affiliation(s)
- Raghvendra K Dubey
- Department of Obstetrics and Gynecology, Clinic for Reproductive Endocrinology, University Hospital Zurich, Zurich 8091-CH, Switzerland.
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Liou CM, Yang AL, Kuo CH, Tin H, Huang CY, Lee SD. Effects of 17beta-estradiol on cardiac apoptosis in ovariectomized rats. Cell Biochem Funct 2010; 28:521-8. [DOI: 10.1002/cbf.1687] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Influence of selective estrogen receptor modulators on interleukin-6 expression in human retinal pigment epithelial cells (ARPE-19). Eur J Pharmacol 2010; 640:219-25. [PMID: 20546720 DOI: 10.1016/j.ejphar.2010.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Revised: 04/11/2010] [Accepted: 05/06/2010] [Indexed: 11/24/2022]
Abstract
Since estrogen and selective estrogen receptor modulators can inhibit inflammatory responses, we studied the regulatory role of several selective estrogen receptor modulators on interleukin-6 (IL-6) expression in human retinal pigment epithelial cells (ARPE-19). ARPE-19 cells were exposed to lipopolysaccharide with simultaneous exposure to different selective estrogen receptor modulators with the secretion of IL-6 cytokine being analyzed by enzyme-linked immunosorbent assay (ELISA). We demonstrate that 17beta-estradiol and HM-D, a novel selective estrogen receptor modulator compound, clearly reduced the IL-6 expression levels after lipopolysaccharide exposure in ARPE-19 cells. Molecular effects of selective estrogen receptor modulators and estrogen on the estrogen response element-mediated transcription were studied using MCF-7 and ARPE-19 cell lines carrying the estrogen response element-luciferase reporter gene. Estrogen and HM-D stimulated the activity of estrogen response element-reporter gene in MCF-7 cells but did not affect the activity in ARPE-19 cells. In addition, HM-D did not activate estrogen receptor alpha when studied by nuclear receptor peptide estrogen receptor alpha ELISA in ARPE-19 cells. These results indicate that estrogen and HM-D can suppress the lipopolysaccharide-induced inflammatory response but signalling is not mediated through estrogen response element transcription in human retinal pigment epithelial cells.
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Kushnir MM, Rockwood AL, Bergquist J. Liquid chromatography-tandem mass spectrometry applications in endocrinology. MASS SPECTROMETRY REVIEWS 2010; 29:480-502. [PMID: 19708015 DOI: 10.1002/mas.20264] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) has been recognized as a primary methodology for the accurate analysis of endogenous steroid hormones in biological samples. This review focuses on the use of LC-MS/MS in clinical laboratories to assist with the diagnosis of diverse groups of endocrine and metabolic diseases. Described analytical methods use on-line and off-line sample preparation and analytical derivatization to enhance analytical sensitivity, specificity, and clinical utility. Advantages of LC-MS/MS as an analytical technique include high specificity, possibility to simultaneously measure multiple analytes, and the ability to assess the specificity of the analysis in every sample. All described analytical methods were extensively validated, utilized in routine diagnostic practice, and were applied in a number of clinical and epidemiological studies, including a study of the steroidogenesis in ovarian follicles.
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Affiliation(s)
- Mark M Kushnir
- ARUP Institute for Clinical and Experimental Pathology, Salt Lake City, UT 84108, USA.
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Fenoy FJ, Hernandez ME, Hernandez M, Quesada T, Salom MG, Hernández I. Acute effects of 2-methoxyestradiol on endothelial aortic No release in male and ovariectomized female rats. Nitric Oxide 2010; 23:12-9. [PMID: 20302966 DOI: 10.1016/j.niox.2010.03.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Revised: 02/24/2010] [Accepted: 03/12/2010] [Indexed: 10/19/2022]
Abstract
The endogenous metabolites of 17beta-estradiol are thought to have protective vascular effects, especially in males and estrogen-deprived females. The present study evaluated the acute in vitro effects of the active metabolite 2-methoxyestradiol on endothelial NO release from ovariectomized female and intact male and female rat aortas. NO was measured electrochemically by differential normal pulse amperometry using carbon fiber microsensors, and also by fluorescence microscopy using 4,5-diaminofluorescein diacetate. 2-Methoxyestradiol alone induced a maintained increase in endothelial NO release in male and ovariectomized rats that was reduced by pretreatment with L-NAME. NO release induced by calcium ionophore alone (A23187) was lower in aortas from ovariectomized rats than from intact females, indicating that estrogen deprivation induces endothelial dysfunction. Pretreatment of aortas with 2-methoxyestradiol potentiated significantly the A23187-induced-NO release in ovariectomized as well as in males, but not in intact females. This potentiation was reduced or abolished by L-NAME. 2-Methoxyestradiol potentiated the vasodilatory effect of A23187 on intestinal arterioles, and also increased intestinal tissular laser-Doppler blood flow signal. These results demonstrate that 17beta-estradiol and its active metabolite 2-methoxyestradiol increase basal aortic endothelial NO production and also cause a potentiation of the calcium ionophore-stimulated NO release in male and ovariectomized, while it has no effects on intact females. 2-Methoxyestradiol appears to be a promising pharmacological agent capable of improving endothelial function in men and postmenopausal women.
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Affiliation(s)
- Francisco J Fenoy
- Departamento de Fisiología, Facultad de Medicina, Universidad de Murcia, Spain
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Jobe SO, Ramadoss J, Koch JM, Jiang Y, Zheng J, Magness RR. Estradiol-17beta and its cytochrome P450- and catechol-O-methyltransferase-derived metabolites stimulate proliferation in uterine artery endothelial cells: role of estrogen receptor-alpha versus estrogen receptor-beta. Hypertension 2010; 55:1005-11. [PMID: 20212268 DOI: 10.1161/hypertensionaha.109.146399] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Estradiol-17beta (E(2)beta) and its metabolites, which are sequentially synthesized by cytochrome P450s and catechol-O-methyltransferase to form 2 and 4-hydroxyestradiol (OHE(2)) and 2- and 4-methoxestradiol (ME(2)), are elevated during pregnancy. We investigated whether cytochrome P450s and catechol-O-methyltransferase are expressed in uterine artery endothelial cells (UAECs) and whether E(2)beta and its metabolites modulate cell proliferation via ER-alpha and/or ER-beta and play roles in physiological uterine angiogenesis during pregnancy. Cultured ovine UAECs from pregnant and nonpregnant ewes were treated with 0.1 to 100.0 nmol/L of E(2)beta, 2-OHE(2), 4-OHE(2), 2-ME(2), and 4-ME(2). ER-alpha or ER-beta specificity was tested using ICI 182 780, ER-alpha-specific 1,3-bis(4-hydroxyphenyl)-4-methyl-5-[4-(2-piperidinyleth oxy)phenol]-1H-pyrazole dihydrochloride, ER-beta-specific 4-[2-phenyl-5,7-bis(trifluoromethyl)pyrazolo [1,5-a]pyrim idin-3-yl]phenol antagonists and their respective agonists ER-alpha-specific 4,4',4"-(4-propyl-[1H]-pyrazole-1,3,5-triyl)trisphenol and ER-beta-specific 2,3-bis(4-Hydroxyphenyl)-propionitrile. Angiogenesis was evaluated using 5-bromodeoxyuridine proliferation assay. Using confocal microscopy and Western analyses to determine enzyme location and levels, we observed CYP1A1, CYP1A2, CYP1B1, CYP3A4, and catechol-O-methyltransferase expression in UAECs; however, expressions were similar between nonpregnant UAECs and pregnant UAECs. E(2)beta, 2-OHE(2), 4-OHE(2), and 4-ME(2) treatments concentration-dependently stimulated proliferation in pregnant UAECs but not in nonpregnant UAECs; 2-ME(2) did not stimulate proliferation in either cell type. Proliferative responses of pregnant UAECs to E(2)beta were solely mediated by ER-beta, whereas responses to E(2)beta metabolites were neither ER-alpha nor ER-beta mediated. We demonstrate an important vascular role for E(2)beta, its cytochrome P450- and catechol-O-methyltransferase-derived metabolites, and ER-beta in uterine angiogenesis regulation during pregnancy that may be dysfunctional in preeclampsia and other cardiovascular disorders.
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Affiliation(s)
- Sheikh O Jobe
- Department of Obstetrics/Gynecology Perinatal Research Laboratories, University of Wisconsin, Madison, Wis 53715, USA
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50
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Nakamagoe M, Tabuchi K, Uemaetomari I, Nishimura B, Hara A. Estradiol protects the cochlea against gentamicin ototoxicity through inhibition of the JNK pathway. Hear Res 2010; 261:67-74. [PMID: 20074632 DOI: 10.1016/j.heares.2010.01.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2009] [Revised: 01/07/2010] [Accepted: 01/08/2010] [Indexed: 10/20/2022]
Abstract
Gentamicin induces outer hair cell death through the apoptotic pathway. It has been reported that this death pathway of outer hair cells is mediated by specific apoptotic enzymes including c-jun N-terminal kinase (JNK) and caspases. 17beta-Estradiol (E2), the most potent estrogen, is known to function as an antiapoptotic agent to prevent the death of various cell types. The purpose of the present study was to examine the effects of E2 on gentamicin-induced apoptotic cell death in outer hair cells. The basal turn organ of Corti explants from p3 or p4 rats were maintained in a tissue culture and exposed to 100muM gentamicin for 48h. The effects of E2 on gentamicin-induced outer hair cell loss, JNK activation, and staining for terminal deoxynucleotidyl transferase-mediated biotinylated UTP nick-end labeling (TUNEL) were examined. E2 significantly decreased gentamicin-induced outer hair cell loss in a dose-dependent manner. JNK activation and TUNEL staining were observed in organ of Corti explants exposed to gentamicin, and staining levels were significantly decreased by E2 treatment. The results indicate that, through the inhibition of JNK and subsequent apoptotic reactions, E2 decreases outer hair cell loss induced by gentamicin ototoxicity.
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Affiliation(s)
- Mariko Nakamagoe
- Department of Otolaryngology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan
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