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Fu S, Ke H, Yuan H, Xu H, Chen W, Zhao L. Dual role of pregnancy in breast cancer risk. Gen Comp Endocrinol 2024; 352:114501. [PMID: 38527592 DOI: 10.1016/j.ygcen.2024.114501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/15/2024] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Reproductive history is one of the strongest risk factors for breast cancer in women. Pregnancy can promote short-term breast cancer risk, but also reduce a woman's lifetime risk of breast cancer. Changes in hormone levels before and after pregnancy are one of the key factors in breast cancer risk. This article summarizes the changes in hormone levels before and after pregnancy, and the roles of hormones in mammary gland development and breast cancer progression. Other factors, such as changes in breast morphology and mammary gland differentiation, changes in the proportion of mammary stem cells (MaSCs), changes in the immune and inflammatory environment, and changes in lactation before and after pregnancy, also play key roles in the occurrence and development of breast cancer. This review discusses the dual effects and the potential mechanisms of pregnancy on breast cancer risk from the above aspects, which is helpful to understand the complexity of female breast cancer occurrence.
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Affiliation(s)
- Shiting Fu
- Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, and Jiangxi Key Laboratory of Human Aging, Nanchang 330031, China
| | - Hao Ke
- Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, and Jiangxi Key Laboratory of Human Aging, Nanchang 330031, China
| | | | - Huaimeng Xu
- Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, and Jiangxi Key Laboratory of Human Aging, Nanchang 330031, China
| | - Wenyan Chen
- Department of Medical Oncology, The Third Hospital of Nanchang, Nanchang 330009, China
| | - Limin Zhao
- Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, and Jiangxi Key Laboratory of Human Aging, Nanchang 330031, China.
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2
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Oliveira TS, Campos HM, Costa RM, Georg RC, Leite JA, Tostes RC, Costa EA, Santos FCA, Lobato NS, Filgueira FP, Ghedini PC. Estrone-mediated lowering of ROS and NOX4 improves endothelial function in ovariectomized wistar rats. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03106-7. [PMID: 38643455 DOI: 10.1007/s00210-024-03106-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/13/2024] [Indexed: 04/22/2024]
Abstract
Estrone (E1) constitutes the primary component in oral conjugated equine estrogens (CEEs) and serves as the principal estrogen precursor in the female circulation in the post-menopause. E1 induces endothelium-dependent vasodilation and activate PI3K/NO/cGMP signaling. To assess whether E1 mitigates vascular dysfunction associated with postmenopause and explore the underlying mechanisms, we examined the vascular effects of E1 in ovariectomized (OVX) rats, a postmenopausal experimental model. Blood pressure was measured using tail-cuff plethysmography, and aortic rings were isolated to assess responses to phenylephrine, acetylcholine (ACh), and sodium nitroprusside. Responses to ACh in rings pre-incubated with superoxide dismutase (SOD), catalase (CAT), or apocynin were also evaluated. Protein expression of SOD, CAT, NOX1, NOX2, and NOX4 was determined by Western blotting. E1 treatment resulted in decreased body weight and retroperitoneal fat, increased uterine weight, and prevented elevated blood pressure in the OVX group. Furthermore, E1 improved endothelium-dependent ACh vasodilation, activated compensatory antioxidant mechanisms - i.e. increased SOD and CAT antioxidant enzymes activity, and decreased NOX4 expression. This, in turn, helped prevent oxidative stress and endothelial dysfunction in OVX rats. Additionally, E1 treatment reversed the increased total LDL cholesterol observed in the OVX group. The findings underscore protective effects of E1 on the cardiovascular system, counteracting OVX-related oxidative stress and endothelial dysfunction in Wistar rats. E1 exhibits promising therapeutic benefits for managing cardiovascular health, particularly in postmenopausal conditions.
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Affiliation(s)
- Thiago S Oliveira
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
- Department of Pharmacy, Laboratory of Experimental Pharmacology, FCBS, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, MG, Brazil
| | - Hericles M Campos
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Rafael M Costa
- Department of Pharmacology, Laboratory of Vascular Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
- School of Medicine, Federal University of Jataí, Jataí, Brazil
| | - Raphaela C Georg
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Jacqueline A Leite
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Rita C Tostes
- Department of Pharmacology, Laboratory of Vascular Biology, Ribeirao Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Elson A Costa
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Fernanda Cristina A Santos
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Núbia S Lobato
- School of Medicine, Federal University of Jataí, Jataí, Brazil
| | | | - Paulo César Ghedini
- Department of Pharmacology, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil.
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King KE, McCormick JJ, McManus MK, Janetos KMT, Goulet N, Kenny GP. Impaired autophagy following ex vivo cooling of simulated hypothermic temperatures in peripheral blood mononuclear cells from young and older adults. J Therm Biol 2024; 121:103831. [PMID: 38565070 DOI: 10.1016/j.jtherbio.2024.103831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/20/2023] [Accepted: 03/13/2024] [Indexed: 04/04/2024]
Abstract
Hypothermia is a critical consequence of extreme cold exposure that increases the risk of cold-related injury and death in humans. While the initiation of cytoprotective mechanisms including the process of autophagy and the heat shock response (HSR) is crucial to cellular survival during periods of stress, age-related decrements in these systems may underlie cold-induced cellular vulnerability in older adults. Moreover, whether potential sex-related differences in autophagic regulation influence the human cold stress response remain unknown. We evaluated the effect of age and sex on mechanisms of cytoprotection (autophagy and the HSR) and cellular stress (apoptotic signaling and the acute inflammatory response) during ex vivo hypothermic cooling. Venous blood samples from 20 healthy young (10 females; mean [SD]: 22 [2] years) and 20 healthy older (10 females; 66 [5] years) adults were either isolated immediately (baseline) for peripheral blood mononuclear cells (PBMCs) or exposed to water bath temperatures maintained at 37, 35, 33, 31, or 4 °C for 90 min before PBMC isolation. Proteins associated with autophagy, apoptosis, the HSR, and inflammation were analyzed via Western blotting. Indicators of autophagic initiation and signaling (LC3, ULK1, and beclin-2) and the HSR (HSP90 and HSP70) increased when exposed to hypothermic temperatures in young and older adults (all p ≤ 0.007). Sex-related differences were only observed with autophagic initiation (ULK1; p = 0.015). However, despite increases in autophagic initiators ULK1 and beclin-2 (all p < 0.001), this was paralleled by autophagic dysfunction (increased p62) in all groups (all p < 0.001). Further, apoptotic (cleaved-caspase-3) and inflammatory (IL-6 and TNF-α) signaling increased in all groups (all p < 0.001). We demonstrated that exposure to hypothermic conditions is associated with autophagic dysfunction, irrespective of age or sex, although there may exist innate sex-related differences in cytoprotection in response to cold exposure as evidenced through altered autophagic initiation.
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Affiliation(s)
- Kelli E King
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - James J McCormick
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Morgan K McManus
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Kristina-Marie T Janetos
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada
| | - Nicholas Goulet
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada; Behavioural and Metabolic Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Ontario, Canada
| | - Glen P Kenny
- Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, Canada; Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.
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Yılmaz YZ, Çakan D. Effect of Locally Administered Estradiol on Wound Healing in a Nasal Septal Perforation Animal Model. Facial Plast Surg 2024; 40:80-85. [PMID: 37044127 DOI: 10.1055/a-2072-5052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
We aimed to investigate the effect of estradiol on wound healing in an experimental nasal septal perforation (NSP) model created in rats. Twenty-two Sprague Dawley healthy male rats were separated into two groups. NSP, approximately 2 mm in diameter, was created in each animal. The 0.1 mL 0.12% estradiol (12 g/L) (study group) and 0.1 mL 0.9% saline (9 g/L) (control group) were applied topically once a day for 14 days. The rats were sacrificed on the 14th day and the cartilage nasal septum of each animal was excised for histopathological examination. The nasal mucosal epithelial regeneration and degeneration, acute inflammatory cell count, fibroblast number, vascularization, granulation tissue formation, giant cell number, eosinophil number, degeneration and regeneration of the nasal cartilage, and collagen density were examined. The macroscopic closure rate of the perforations and histopathological parameters were evaluated statistically. In this study, the epithelial regeneration, the fibroblast count, the granulation tissue formation, and the amount of collagen were significantly higher in the study group than in the saline group (p < 0.05). The acute inflammatory activity was lower in the estradiol group than in the saline group (p < 0.05). There was no statistically significant difference in the closure rate of perforation between the two groups (p = 0.163). No significant difference was found in other comparisons (p > 0.05). The locally administered estradiol may improve wound healing of the nasal septum in an experimental NSP animal model. LEVEL OF EVIDENCE: Not applicable.
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Affiliation(s)
- Yetkin Zeki Yılmaz
- Cerrahpasa Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Dogan Çakan
- Cerrahpasa Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
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Enright S, Werstuck GH. Investigating the Effects of Sex Hormones on Macrophage Polarization. Int J Mol Sci 2024; 25:951. [PMID: 38256027 PMCID: PMC10816176 DOI: 10.3390/ijms25020951] [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: 12/14/2023] [Revised: 12/29/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Sex differences in the development and progression of cardiovascular disease are well established, but the effects of sex hormones on macrophage polarization and pro-atherogenic functions are not well described. We hypothesize that sex hormones directly modulate macrophage polarization, and thereby regulate the progression of atherosclerosis. Bone marrow-derived monocytes from adult male and female C57BL/6 mice were differentiated into macrophages using macrophage colony-stimulating factor (20 ng/mL) and pre-treated with either 17β-estradiol (100 nM), testosterone (100 nM), or a vehicle control for 24 h. Macrophages were polarized into pro- or anti-inflammatory phenotypes and the effects of sex hormone supplementation on the gene expression of macrophage phenotypic markers were assessed using RT-qPCR. Inflammatory markers, including IL-1β, were quantified using an addressable laser bead immunoassay. A transwell migration assay was used to determine changes in macrophage migration. Sex differences were observed in macrophage polarization, inflammatory responses, and migration. Pre-treatment with 17β-estradiol significantly impaired the gene expression of inflammatory markers and the production of IL-1β in inflammatory macrophages. In anti-inflammatory macrophages, 17β-estradiol significantly upregulated the expression of anti-inflammatory markers and enhanced migration. Pre-treatment with testosterone enhanced anti-inflammatory mRNA expression and impaired the production of IL-1β. Our observations suggest a protective role of 17β-estradiol in atherogenesis that may contribute to the sexual dimorphisms in cardiovascular disease observed in human patients.
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Affiliation(s)
- Sophie Enright
- Thrombosis and Atherosclerosis Research Institute, 237 Barton Street E, Hamilton, ON L8L 2X2, Canada;
| | - Geoff H. Werstuck
- Thrombosis and Atherosclerosis Research Institute, 237 Barton Street E, Hamilton, ON L8L 2X2, Canada;
- Department of Medicine, McMaster University, 1280 Main St. W, Hamilton, ON L8S 4L8, Canada
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da Silva FC, Brandão DC, Ferreira EA, Siqueira RP, Ferreira HSV, Da Silva Filho AA, Araújo TG. Tailoring Potential Natural Compounds for the Treatment of Luminal Breast Cancer. Pharmaceuticals (Basel) 2023; 16:1466. [PMID: 37895937 PMCID: PMC10610388 DOI: 10.3390/ph16101466] [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: 08/29/2023] [Revised: 09/24/2023] [Accepted: 09/29/2023] [Indexed: 10/29/2023] Open
Abstract
Breast cancer (BC) is the most diagnosed cancer worldwide, mainly affecting the epithelial cells from the mammary glands. When it expresses the estrogen receptor (ER), the tumor is called luminal BC, which is eligible for endocrine therapy with hormone signaling blockade. Hormone therapy is essential for the survival of patients, but therapeutic resistance has been shown to be worrying, significantly compromising the prognosis. In this context, the need to explore new compounds emerges, especially compounds of plant origin, since they are biologically active and particularly promising. Natural products are being continuously screened for treating cancer due to their chemical diversity, reduced toxicity, lower side effects, and low price. This review summarizes natural compounds for the treatment of luminal BC, emphasizing the activities of these compounds in ER-positive cells. Moreover, their potential as an alternative to endocrine resistance is explored, opening new opportunities for the design of optimized therapies.
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Affiliation(s)
- Fernanda Cardoso da Silva
- Laboratory of Genetics and Biotechnology, Institute of Biotechnology, Universidade Federal de Uberlândia, Patos de Minas 38700-002, MG, Brazil; (F.C.d.S.); (D.C.B.); (R.P.S.); (H.S.V.F.)
| | - Douglas Cardoso Brandão
- Laboratory of Genetics and Biotechnology, Institute of Biotechnology, Universidade Federal de Uberlândia, Patos de Minas 38700-002, MG, Brazil; (F.C.d.S.); (D.C.B.); (R.P.S.); (H.S.V.F.)
| | - Everton Allan Ferreira
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil; (E.A.F.); (A.A.D.S.F.)
| | - Raoni Pais Siqueira
- Laboratory of Genetics and Biotechnology, Institute of Biotechnology, Universidade Federal de Uberlândia, Patos de Minas 38700-002, MG, Brazil; (F.C.d.S.); (D.C.B.); (R.P.S.); (H.S.V.F.)
| | - Helen Soares Valença Ferreira
- Laboratory of Genetics and Biotechnology, Institute of Biotechnology, Universidade Federal de Uberlândia, Patos de Minas 38700-002, MG, Brazil; (F.C.d.S.); (D.C.B.); (R.P.S.); (H.S.V.F.)
| | - Ademar Alves Da Silva Filho
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil; (E.A.F.); (A.A.D.S.F.)
| | - Thaise Gonçalves Araújo
- Laboratory of Genetics and Biotechnology, Institute of Biotechnology, Universidade Federal de Uberlândia, Patos de Minas 38700-002, MG, Brazil; (F.C.d.S.); (D.C.B.); (R.P.S.); (H.S.V.F.)
- Laboratory of Nanobiotechnology Prof. Dr. Luiz Ricardo Goulart Filho, Institute of Biotechnology, Universidade Federal de Uberlândia, Uberlandia 38405-302, MG, Brazil
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Yang S, Sun Y, Kapilevich L, Zhang X, Huang Y. Protective effects of curcumin against osteoporosis and its molecular mechanisms: a recent review in preclinical trials. Front Pharmacol 2023; 14:1249418. [PMID: 37790808 PMCID: PMC10544586 DOI: 10.3389/fphar.2023.1249418] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/04/2023] [Indexed: 10/05/2023] Open
Abstract
Osteoporosis (OP) is one of the most common metabolic skeletal disorders and is commonly seen in the elderly population and postmenopausal women. It is mainly associated with progressive loss of bone mineral density, persistent deterioration of bone microarchitecture, and increased fracture risk. To date, drug therapy is the primary method used to prevent and treat osteoporosis. However, long-term drug therapy inevitably leads to drug resistance and specific side effects. Therefore, researchers are constantly searching for new monomer compounds from natural plants. As a candidate for the treatment of osteoporosis, curcumin (CUR) is a natural phenolic compound with various pharmacological and biological activities, including antioxidant, anti-apoptotic, and anti-inflammatory. This compound has gained research attention for maintaining bone health in various osteoporosis models. We reviewed preclinical and clinical studies of curcumin in preventing and alleviating osteoporosis. These results suggest that if subjected to rigorous pharmacological and clinical trials, naturally-derived curcumin could be used as a complementary and alternative medicine for the treatment of osteoporosis by targeting osteoporosis-related mechanistic pathways. This review summarizes the mechanisms of action and potential therapeutic applications of curcumin in the prevention and mitigation of osteoporosis and provides reference for further research and development of curcumin.
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Affiliation(s)
- Shenglei Yang
- College of Exercise and Health, Shenyang Sport University, Shenyang, China
| | - Yuying Sun
- School of Stomatology, Binzhou Medical College, Yantai, China
| | - Leonid Kapilevich
- Faculty of Physical Education, Nаtionаl Reseаrch Tomsk Stаte University, Tomsk, Russiа
| | - Xin’an Zhang
- College of Exercise and Health, Shenyang Sport University, Shenyang, China
| | - Yue Huang
- College of Exercise and Health, Shenyang Sport University, Shenyang, China
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Tanideh N, Daneshmand F, Karimimanesh M, Mottaghipisheh J, Koohpeyma F, Koohi-Hosseinabadi O, Tanideh R, Irajie C, Iraji A. Hydroalcoholic extract of Glycyrrhiza glabra root combined with Linum usitatissimum oil as an alternative for hormone replacement therapy in ovariectomized rats. Heliyon 2023; 9:e15557. [PMID: 37144184 PMCID: PMC10151376 DOI: 10.1016/j.heliyon.2023.e15557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 05/06/2023] Open
Abstract
Objective Plant-derived estrogens (phytoestrogens) with structural similarity to primary female sex hormones could be suitable replacements for sex hormones. Therefore, the effects of the licorice root extract and Linum usitatissimum oil on biochemical and hormonal indices in the serum and uterine stereological changes in ovariectomized rats were evaluated. Design In this study, 70 adult female rats were randomly divided into seven groups including 1) control group, 2) sham-operated group, 3) ovariectomized (OVX) group, 4) OVX rats that received 1 mg/kg estradiol for 8 weeks at the day of post-operation, 5) OVX rats which received 2.0 mg/kg body wt Linum usitatissimum oil for 8 weeks at the day of post-operation, 6) OVX rats which received 2.0 mg/kg body wt licorice extract for 8 weeks at the day of post-operation, and 7) OVX rats which received 2.0 mg/kg body wt Linum usitatissimum oil + 2.0 mg/kg body wt licorice extract for 8 weeks at the day of post-operation. After eight weeks, alkaline phosphatase activity, as well as calcium, estradiol, and progesterone concentrations were assessed and tissue samples of the uterus were serologically examined. Results The results indicated that after 8 weeks of OVX the alkaline phosphatase activity (Mean = 637.7 IU/L) increased and the calcium (Mean = 7.09 mg/dl), estradiol (5.30 pmol/L), and progesterone (Mean = 3.53 nmol/L) reduced compared to other groups. Moreover, stereological changes in the uterus in ovariectomy groups were seen compared to the other groups. The treatment with Linum usitatissimum oil and licorice extract had a significant therapeutic effect on biochemical factors and stereological changes compared to the ovariectomized group. Conclusion The results of this study showed that the combination of Linum usitatissimum oil with licorice extract showed the high potential of hormone replacement therapy in the reduction of OVX complications.
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Affiliation(s)
- Nader Tanideh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | - Javad Mottaghipisheh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Farhad Koohpeyma
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omid Koohi-Hosseinabadi
- Laparoscopy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Central Research Laboratory, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Romina Tanideh
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Cambyz Irajie
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Corresponding author.
| | - Aida Iraji
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Central Research Laboratory, Shiraz University of Medical Sciences, Shiraz, Iran
- Corresponding author. Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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9
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Tao Z, Cheng Z. Hormonal regulation of metabolism-recent lessons learned from insulin and estrogen. Clin Sci (Lond) 2023; 137:415-434. [PMID: 36942499 PMCID: PMC10031253 DOI: 10.1042/cs20210519] [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: 09/03/2022] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/23/2023]
Abstract
Hormonal signaling plays key roles in tissue and metabolic homeostasis. Accumulated evidence has revealed a great deal of insulin and estrogen signaling pathways and their interplays in the regulation of mitochondrial, cellular remodeling, and macronutrient metabolism. Insulin signaling regulates nutrient and mitochondrial metabolism by targeting the IRS-PI3K-Akt-FoxOs signaling cascade and PGC1α. Estrogen signaling fine-tunes protein turnover and mitochondrial metabolism through its receptors (ERα, ERβ, and GPER). Insulin and estrogen signaling converge on Sirt1, mTOR, and PI3K in the joint regulation of autophagy and mitochondrial metabolism. Dysregulated insulin and estrogen signaling lead to metabolic diseases. This article reviews the up-to-date evidence that depicts the pathways of insulin signaling and estrogen-ER signaling in the regulation of metabolism. In addition, we discuss the cross-talk between estrogen signaling and insulin signaling via Sirt1, mTOR, and PI3K, as well as new therapeutic options such as agonists of GLP1 receptor, GIP receptor, and β3-AR. Mapping the molecular pathways of insulin signaling, estrogen signaling, and their interplays advances our understanding of metabolism and discovery of new therapeutic options for metabolic disorders.
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Affiliation(s)
- Zhipeng Tao
- Cutaneous Biology Research Center, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts, U.S.A
| | - Zhiyong Cheng
- Department of Food Science and Human Nutrition, University of Florida, Gainesville, Florida, U.S.A
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Zhang Y, Chen Y, Bai X, Cheng G, Cao T, Dong L, Zhao J, Zhang Y, Qu H, Kong H, Zhao Y. Glycyrrhizae radix et Rhizoma-Derived Carbon Dots and Their Effect on Menopause Syndrome in Ovariectomized Mice. Molecules 2023; 28:molecules28041830. [PMID: 36838814 PMCID: PMC9962818 DOI: 10.3390/molecules28041830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
With the extension of the human life span and the increasing pressure of women's work and life, menopause syndrome (MPS) refers to a problem that puzzles almost all women worldwide. Hormone replacement treatment (HRT) can effectively mitigate the symptoms but can also exert adverse effects to a certain extent. Glycyrrhizae radix et rhizome (GRR) is commonly made into a charcoal processed product, termed GRR Carbonisatas (GRRC), for use in traditional Chinese medicine (TCM). GRRC is widely used to treat MPS and other gynecological diseases. In this study, GRRC was prepared through pyrolysis. Subsequently, GRR-derived carbon dots (GRR-CDs) were purified through dialysis and characterized using transmission electron microscopy, high-resolution transmission electron microscopy, Fourier-transform infrared, ultraviolet, fluorescence, X-ray photoelectron microscopy, and high-performance liquid chromatography. The effects of GRR-CDs on MPS were examined and confirmed using ovariectomized female mice models. The GRR-CDs ranged from 1.0 to 3.0 nm in diameter and with multiple surface chemical groups, as indicated by the results. GRR-CDs can elevate the estradiol (E2) level of healthy female mice. Moreover, GRR-CDs can alleviate MPS using the typical ovariectomized mice model, as confirmed by elevating the estradiol (E2) level and reducing the degree of follicle stimulating hormone (FSH) and luteinizing hormone (LH) and raising the degree of uterine atrophy. The results of this study suggested that GRR-CDs may be a potential clinical candidate for the treatment of MPS, which also provides a possibility for nanodrugs to treat hormonal diseases.
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Affiliation(s)
- Ying Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yumin Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xue Bai
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Guoliang Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Tianyou Cao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Liyang Dong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jie Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yue Zhang
- School of Life Science, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Huihua Qu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
- Center of Scientific Experiment, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Hui Kong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
- Correspondence: (H.K.); (Y.Z.); Tel.: +86-010-6248-6705 (Y.Z.); Fax: +86-010-6428-6821 (Y.Z.)
| | - Yan Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
- Correspondence: (H.K.); (Y.Z.); Tel.: +86-010-6248-6705 (Y.Z.); Fax: +86-010-6428-6821 (Y.Z.)
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Xia X, Lin Q, Zhao N, Zeng J, Yang J, Liu Z, Huang R. Anti-Colon Cancer Activity of Dietary Phytochemical Soyasaponin I and the Induction of Metabolic Shifts in HCT116. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27144382. [PMID: 35889255 PMCID: PMC9316303 DOI: 10.3390/molecules27144382] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 06/26/2022] [Accepted: 07/06/2022] [Indexed: 12/24/2022]
Abstract
Dietary phytochemicals play an important role in the prevention and treatment of colon cancer. It is reported that group B of soyasaponin, derived from dietary pulses, has anti-colonic effects on some colon cancer cell lines. However, it is uncertain which specific soybean saponins play a role. In our study, as one of the group B soyasaponin, the anti-colon cancer activity of soyasaponins I (SsI) was screened, and we found that it had the inhibitory effect of proliferation on colon cancer cell lines HCT116 (IC50 = 161.4 μM) and LoVo (IC50 = 180.5 μM), but no effect on HT29 between 0–200 μM. Then, nine potential targets of SsI on colon cancer were obtained by network pharmacology analysis. A total of 45 differential metabolites were identified by metabolomics analysis, and the KEGG pathway was mainly enriched in the pathways related to the absorption and metabolism of amino acids. Finally, molecular docking analysis predicted that SsI might dock with the protein of DNMT1, ERK1. The results indicated that the effect of SsI on HCT116 might be exerted by influencing amino acid metabolism and the estrogen signaling pathway. This study may provide the possibility for the application of SsI against colon cancer.
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Affiliation(s)
- Xuewei Xia
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (X.X.); (Q.L.); (J.Z.); (J.Y.); (Z.L.)
| | - Qianmin Lin
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (X.X.); (Q.L.); (J.Z.); (J.Y.); (Z.L.)
| | - Ning Zhao
- Graduate School, Guangzhou University of Chinese Medicine, Guangzhou 510006, China;
| | - Jinzi Zeng
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (X.X.); (Q.L.); (J.Z.); (J.Y.); (Z.L.)
| | - Jiajia Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (X.X.); (Q.L.); (J.Z.); (J.Y.); (Z.L.)
| | - Zhiyuan Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (X.X.); (Q.L.); (J.Z.); (J.Y.); (Z.L.)
| | - Riming Huang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, China; (X.X.); (Q.L.); (J.Z.); (J.Y.); (Z.L.)
- Correspondence:
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12
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Yakupova ZR, Lebedinets SA, Vakh KS, Garmonov SY, Bulatov AV. Microextraction of 17-β-Estradiol from Medicinal Preparations for the Subsequent Determination by HPLC-UV. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822010154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Berkel C, Cacan E. Estrogen- and estrogen receptor (ER)-mediated cisplatin chemoresistance in cancer. Life Sci 2021; 286:120029. [PMID: 34634322 DOI: 10.1016/j.lfs.2021.120029] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/28/2021] [Accepted: 10/02/2021] [Indexed: 12/21/2022]
Abstract
Cisplatin is a platinum-based chemotherapeutic drug used in the standard treatment of various solid cancers including testicular, bladder, head and neck, cervical and ovarian cancer. Although successful clinical responses are observed in patients following initial cisplatin treatment, resistance to cisplatin ultimately develops in most patients, leading to therapeutic failure. Multiple molecular mechanisms contributing to cisplatin resistance in cancer cells have been identified to date. In this review, we discuss the effect of estrogen, estrogen receptors (ERs) and estrogen-related receptors (ERRs) on cisplatin resistance in various cancer types. We highlight that estrogen treatment or increased expression of ERs or ERRs are generally associated with higher cisplatin resistance in cancer in vitro, mostly due to decreased caspase activity, increased anti-apoptotic protein levels such as BCL-2, higher drug efflux and higher levels of antioxidant enzymes. Targeted inhibition of ERs or estrogen production in combination with cisplatin treatment thus can be a useful strategy to overcome chemoresistance in certain cancer types. Estrogen levels and ER status can also be considered to identify cancer patients with a high potential of therapy response against cisplatin. A better mechanistic understanding of the involvement of estrogen, ERs and ERRs in the development of cisplatin resistance is needed to improve the management of cancer treatment.
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Affiliation(s)
- Caglar Berkel
- Department of Molecular Biology and Genetics, Tokat Gaziosmanpasa University, Tokat 60250, Turkey.
| | - Ercan Cacan
- Department of Molecular Biology and Genetics, Tokat Gaziosmanpasa University, Tokat 60250, Turkey.
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14
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Wong A, Chen SQ, Halvorson BD, Frisbee JC. Microvessel Density: Integrating Sex-Based Differences and Elevated Cardiovascular Risks in Metabolic Syndrome. J Vasc Res 2021; 59:1-15. [PMID: 34535606 DOI: 10.1159/000518787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/28/2021] [Indexed: 11/19/2022] Open
Abstract
Metabolic syndrome (MetS) is a complex pathological state consisting of metabolic risk factors such as hypertension, insulin resistance, and obesity. The interconnectivity of cellular pathways within various biological systems suggests that each individual component of MetS may share common pathological sources. Additionally, MetS is closely associated with vasculopathy, including a reduction in microvessel density (MVD) (rarefaction) and elevated risk for various cardiovascular diseases. Microvascular impairments may contribute to perfusion-demand mismatch, where local metabolic needs are insufficiently met due to the lack of nutrient and oxygen supply, thus creating pathological positive-feedback loops and furthering the progression of disease. Sexual dimorphism is evident in these underlying cellular mechanisms, which places males and females at different levels of risk for cardiovascular disease and acute ischemic events. Estrogen exhibits protective effects on the endothelium of pre-menopausal women, while androgens may be antagonistic to cardiovascular health. This review examines MetS and its influences on MVD, as well as sex differences relating to the components of MetS and cardiovascular risk profiles. Finally, translational relevance and interventions are discussed in the context of these sex-based differences.
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Affiliation(s)
- Angelina Wong
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Shu Qing Chen
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Brayden D Halvorson
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Jefferson C Frisbee
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
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15
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Pepermans RA, Sharma G, Prossnitz ER. G Protein-Coupled Estrogen Receptor in Cancer and Stromal Cells: Functions and Novel Therapeutic Perspectives. Cells 2021; 10:cells10030672. [PMID: 33802978 PMCID: PMC8002620 DOI: 10.3390/cells10030672] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 02/06/2023] Open
Abstract
Estrogen is involved in numerous physiological and pathophysiological systems. Its role in driving estrogen receptor-expressing breast cancers is well established, but it also has important roles in a number of other cancers, acting both on tumor cells directly as well as in the function of multiple cells of the tumor microenvironment, including fibroblasts, immune cells, and adipocytes, which can greatly impact carcinogenesis. One of its receptors, the G protein-coupled estrogen receptor (GPER), has gained much interest over the last decade in both health and disease. Increasing evidence shows that GPER contributes to clinically observed endocrine therapy resistance in breast cancer while also playing a complex role in a number of other cancers. Recent discoveries regarding the targeting of GPER in combination with immune checkpoint inhibition, particularly in melanoma, have led to the initiation of the first Phase I clinical trial for the GPER-selective agonist G-1. Furthermore, its functions in metabolism and corresponding pathophysiological states, such as obesity and diabetes, are becoming more evident and suggest additional therapeutic value in targeting GPER for both cancer and other diseases. Here, we highlight the roles of GPER in several cancers, as well as in metabolism and immune regulation, and discuss the therapeutic value of targeting this estrogen receptor as a potential treatment for cancer as well as contributing metabolic and inflammatory diseases and conditions.
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Affiliation(s)
- Richard A. Pepermans
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (R.A.P.); (G.S.)
| | - Geetanjali Sharma
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (R.A.P.); (G.S.)
- Center of Biomedical Research Excellence in Autophagy, Inflammation and Metabolism, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Eric R. Prossnitz
- Division of Molecular Medicine, Department of Internal Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (R.A.P.); (G.S.)
- Center of Biomedical Research Excellence in Autophagy, Inflammation and Metabolism, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
- University of New Mexico Comprehensive Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
- Correspondence: ; Tel.: +1-505-272-5647
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16
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Giordano Imbroll M, Gruppetta M. A current perspective into young female sex hormone replacement: a review. Expert Rev Endocrinol Metab 2020; 15:405-414. [PMID: 32893689 DOI: 10.1080/17446651.2020.1816820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Hormone replacement in females with hypogonadism is advocated to address the various clinical aspects of estrogen deficiency. AREAS COVERED This article focuses on hormone replacement in young females with hypogonadism, including a rationale as to why hormone replacement in such patients differs from treatment in postmenopausal females, a summary of symptoms encountered by females with hypogonadism and a comprehensive discussion of the various treatment options available, specifically focusing on the latest advances in the subject. A Medline search was conducted using different combinations of relevant keywords, giving preference to recent publications. EXPERT OPINION Whilst traditionally oral contraceptive pills (containing ethynyl estradiol) were commonly used as a form of hormone replacement, it is now increasingly recognized that this is not the optimal treatment option. Physiological hormone replacement with transdermal estradiol is found to be superior. Evidence suggests that micronized progesterone may be associated with fewer side effects, although its effect on endometrial protection is not yet proven. Synthetic progestins confer varying degrees of androgenic and thromboembolic properties which should be kept in mind when prescribing individualized treatment. Further studies in different sub-cohorts of female patients with hypogonadism might help address the specific needs of individual patients.
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Affiliation(s)
- Miriam Giordano Imbroll
- Department of Medicine, Faculty of Medicine and Surgery, University of Malta, Mater Dei Hospital , Msida, Malta
- Department of Medicine, Mater Dei Hospital , Msida, Malta
| | - Mark Gruppetta
- Department of Medicine, Faculty of Medicine and Surgery, University of Malta, Mater Dei Hospital , Msida, Malta
- Department of Medicine, Mater Dei Hospital , Msida, Malta
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17
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Critical role of estrogen in the progression of chronic liver diseases. Hepatobiliary Pancreat Dis Int 2020; 19:429-434. [PMID: 32299655 DOI: 10.1016/j.hbpd.2020.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 03/19/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Estrogens regulate sexual function and also have a significant role in various pathophysiological processes. Estrogens have a non-reproductive role as the modulators of the immune system, growth, neuronal function, and metabolism. Estrogen receptors are expressed in the liver and their impaired expression and function are implicated with obesity and liver associated metabolic dysfunctions. The purpose of the current review is to discuss the disparity role of estrogens on several forms of liver diseases. DATA SOURCES A comprehensive search in PubMed and EMBASE was conducted using the keywords "estrogens and liver diseases", "estradiol and liver diseases", "hormones and liver diseases", "endocrine function in liver diseases", and "female hormones in liver diseases". Relevant papers published before September 30, 2019 were included. RESULTS The present review confirms the imperative role of estrogen in various forms of chronic liver diseases. Estrogens play a key role in maintaining homeostasis and make the liver less susceptible to several forms of chronic liver diseases in healthy premenopausal individuals. In contrast, clinical studies also showed increased estrogen levels with chronic liver diseases. CONCLUSIONS Several studies reported the protective role of estrogens in chronic liver diseases and this has been widely accepted and confirmed in experimental studies using ovariectomized rat models. However, in a few clinical studies, increased estrogen levels are also implicated in chronic liver diseases. Therefore, further studies are warranted at molecular level to explore the role of estrogen in various forms of chronic liver diseases.
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18
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Abou-Ismail MY, Citla Sridhar D, Nayak L. Estrogen and thrombosis: A bench to bedside review. Thromb Res 2020; 192:40-51. [PMID: 32450447 DOI: 10.1016/j.thromres.2020.05.008] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/12/2020] [Accepted: 05/07/2020] [Indexed: 02/07/2023]
Abstract
Estrogen, in the clinical setting is used primarily for contraception and hormone replacement therapy. It has been well established that estrogen increases the risk of both arterial and venous thrombosis. While estrogen is known to induce a prothrombotic milieu through various effects on the hemostatic pathways, the exact molecular mechanism leading to those effects is not known. The most common clinical presentation of estrogen-related thrombosis is venous thromboembolism (VTE) of the deep veins of the legs or pulmonary vessels, usually within the first few months of use. Estrogen has also been associated with increased risk of "unusual site" thromboses, as well as arterial thrombosis. Women at high-risk of thrombosis need careful evaluation and counseling for contraception, pregnancy, menopausal hormonal therapy and other estrogen-related conditions or treatments in order to lower the risk of thromboses. We review the most recent evidence on management of high-estrogen states in women at high-risk of thrombosis, as well as emerging data on unique populations such as transgender women. More studies are needed to better understand the pathophysiology of hormone-related thrombosis, as well as more comprehensive techniques to stratify risks for thrombosis so as to enable tailoring of recommendations for each individual.
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Affiliation(s)
- Mouhamed Yazan Abou-Ismail
- Case Western Reserve University, Cleveland, OH, United States of America; University Hospitals Cleveland Medical Center, Cleveland, OH, United States of America
| | - Divyaswathi Citla Sridhar
- Case Western Reserve University, Cleveland, OH, United States of America; Rainbow Babies & Children's Hospital, Cleveland, OH, United States of America
| | - Lalitha Nayak
- Case Western Reserve University, Cleveland, OH, United States of America; University Hospitals Cleveland Medical Center, Cleveland, OH, United States of America.
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19
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Kibambe MG, Momba MNB, Daso AP, Van Zijl MC, Coetzee MAA. Efficiency of selected wastewater treatment processes in removing estrogen compounds and reducing estrogenic activity using the T47D-KBLUC reporter gene assay. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 260:110135. [PMID: 32090831 DOI: 10.1016/j.jenvman.2020.110135] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/08/2020] [Accepted: 01/11/2020] [Indexed: 05/07/2023]
Abstract
The occurrence of endocrine-disrupting compounds (EDCs) consisting of natural and synthetic estrogens, namely estrone (E1), 17β-estradiol (E2), estriol (E3) and 17α-ethinylestradiol (EE2) was quantified in wastewater samples. The aim of this study was to assess the removal efficiency for the selected estrogens (E1, E2, E3 and EE2) and reduction of estrogenic activity in wastewater samples from wastewater treatment plants (WWTPs) using different processes. Solid-phase extraction (SPE) followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) methods were used to quantify the selected estrogens in wastewater samples. Estrogenic activity was assessed using the T47D-KBluc gene reporter assay. Results revealed a decrease in estrogen concentrations observed in the effluents of all the WWTPs, except for E2 at Daspoort where no removal was noted. In general, the highest removal for total estrogens was observed at Phola (84%) combining three processes (AP, BF and wetland). The AS at Daspoort had a highest removal of 75% for E3; while at Zeekoegat the highest removal reached 61% for EE2. The PST at Daspoort had no removal recorded for all the compounds, except for the EE2 (33%). The AP and BF systems at Phola contributed to a higher removal of selected compounds. Downstream of the wetland at Phola no removal was recorded for E3; while the highest removal reached 61% for E1. The best performance in terms of the overall influent-to-effluent removal efficiency was observed at Phola WWTP, where E1 removal of 85% was recorded. The highest estrogenic activity in the effluent was reported at Phola, with an average estradiol equivalent (EEQ) value of 6.3 ± 6.7 ng/L. However, no anti-estrogenic activity was detected in any of the samples. The daily mass load discharged from the effluent of the three WWTPs was higher for E1 recorded at Zeekoegat (8002.3 ± 6416.3 mg/d), followed by Daspoort (3509.8 ± 849.0 mg/d) and finally Phola (176.1 ± 34.9).
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Affiliation(s)
- Muyasu Grace Kibambe
- Department of Environmental, Water and Earth Science, Faculty of Science Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa.
| | - Maggie N B Momba
- Department of Environmental, Water and Earth Science, Faculty of Science Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa
| | - A P Daso
- Department of Environmental, Water and Earth Science, Faculty of Science Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa
| | - M C Van Zijl
- Department of Urology, University of Pretoria, Private Bag X323, Arcadia, 007, Pretoria, South Africa
| | - Marthie A A Coetzee
- Department of Environmental, Water and Earth Science, Faculty of Science Tshwane University of Technology, Private Bag X680, Pretoria, 0001, South Africa.
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20
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New insights of CYP1A in endogenous metabolism: a focus on single nucleotide polymorphisms and diseases. Acta Pharm Sin B 2020; 10:91-104. [PMID: 31998606 PMCID: PMC6984740 DOI: 10.1016/j.apsb.2019.11.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 10/13/2019] [Accepted: 10/16/2019] [Indexed: 12/31/2022] Open
Abstract
Cytochrome P450 1A (CYP1A), one of the major CYP subfamily in humans, not only metabolizes xenobiotics including clinical drugs and pollutants in the environment, but also mediates the biotransformation of important endogenous substances. In particular, some single nucleotide polymorphisms (SNPs) for CYP1A genes may affect the metabolic ability of endogenous substances, leading to some physiological or pathological changes in humans. This review first summarizes the metabolism of endogenous substances by CYP1A, and then introduces the research progress of CYP1A SNPs, especially the research related to human diseases. Finally, the relationship between SNPs and diseases is discussed. In addition, potential animal models for CYP1A gene editing are summarized. In conclusion, CYP1A plays an important role in maintaining the health in the body.
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Key Words
- CYP, cytochrome P450
- CYP1A
- EOAs, cis-epoxyoctadecenoics
- Endogenous substances
- FSH, follicle stimulating hormone
- HODEs, hydroxyoctadecdienoic acids
- IQ, 2-amino-3-methylimidazo [4,5-f] quinoline
- KO, knockout
- LIF/STAT3, inhibiting leukemia inhibitory factor/signal transducer and activator of transcription 3
- Metabolism and disease
- PhIP, 2-amino-1-methyl-6-phenylimidazo [4,5-b] pyridine
- SNPs
- SNPs, single nucleotide polymorphisms
- WT, wild type
- Xenobiotics
- t-RA, all-trans-retinoic acid
- t-ROH, all-trans-retinol
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Abstract
We previously reported that postmenopausal obese women exhibit increased levels of circulating adipocyte fatty acid binding protein (A-FABP), which is associated with breast cancer (BC) development. In postmenopause, increased oestrogen levels are reported to be associated with increased BC risk. Herein, we assessed if oestrogens, including oestrone (E1), oestradiol (E2) and oestriol (E3), are associated with A-FABP in the obesity-related BC development. We collected 249 serum samples from women with or without BC and measured serum levels of E1, E2, E3 and A-FABP. Considering all subjects, E1 and E2 but not E3 levels were significantly higher in pre- than in postmenopause individuals. E3 and E1 levels were higher in non-obese than in obese women. When samples were separated by BC status, E2 levels were significantly higher, while E1 and E3 levels were significantly lower in postmenopausal obese than non-obese women without BC. These differences based on body mass index (BMI) were not observed among women with BC. E3 levels were higher in obese women with BC than those without. A-FABP levels were significantly higher in postmenopausal obese women regardless of BC status. In addition, A-FABP was not associated with E1, E2 or E3. Altogether, our data suggest that A-FABP is independently regulated by obesity and menopausal status compared to oestrogens, thus playing a unique role in the development of BC.
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Affiliation(s)
- Bing Li
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Jiaqing Hao
- Department of Microbiology and Immunology, University of Louisville, Louisville, KY, USA
| | - Xiaofang Yan
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY, USA
| | - Maiying Kong
- Department of Bioinformatics and Biostatistics, University of Louisville, Louisville, KY, USA
| | - Edward R. Sauter
- Division of Cancer Prevention, National Cancer Institute, 9609 Medical Center Drive, Rockville, MD, USA
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22
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Potential Therapeutic Application of Estrogen in Gender Disparity of Nonalcoholic Fatty Liver Disease/Nonalcoholic Steatohepatitis. Cells 2019; 8:cells8101259. [PMID: 31619023 PMCID: PMC6835656 DOI: 10.3390/cells8101259] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/10/2019] [Accepted: 10/12/2019] [Indexed: 02/07/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) caused by fat accumulation in the liver is globally the most common cause of chronic liver disease. Simple steatosis can progress to nonalcoholic steatohepatitis (NASH), a more severe form of NAFLD. The most potent driver for NASH is hepatocyte death induced by lipotoxicity, which triggers inflammation and fibrosis, leading to cirrhosis and/or liver cancer. Despite the significant burden of NAFLD, there is no therapy for NAFLD/NASH. Accumulating evidence indicates gender-related NAFLD progression. A higher incidence of NAFLD is found in men and postmenopausal women than premenopausal women, and the experimental results, showing protective actions of estradiol in liver diseases, suggest that estrogen, as the main female hormone, is associated with the progression of NAFLD/NASH. However, the mechanism explaining the functions of estrogen in NAFLD remains unclear because of the lack of reliable animal models for NASH, the imbalance between the sexes in animal experiments, and subsequent insufficient results. Herein, we reviewed the pathogenesis of NAFLD/NASH focused on gender and proposed a feasible association of estradiol with NAFLD/NASH based on the findings reported thus far. This review would help to expand our knowledge of the gender differences in NAFLD and for developing gender-based treatment strategies for NAFLD/NASH.
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23
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Comparing the effect of tempe flour and tofu flour consumption on estrogen serum in ovariectomized rats. Heliyon 2019; 5:e01787. [PMID: 31245636 PMCID: PMC6581974 DOI: 10.1016/j.heliyon.2019.e01787] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/09/2019] [Accepted: 05/20/2019] [Indexed: 11/21/2022] Open
Abstract
Estrogen decreasing during menopause can create problems in the cardiovascular organs, brain, urogental tract, and bone. Estrogen replacement therapy (ERT) can be used to increase estrogen levels. However, side-effects including breast cancer may limit their use. Tempe and tofu are natural plat-based foods which contain phytoestrogens. The aim of this research was to compare estrogen serum levels in ovariectomized rats given tempe flour and tofu flour. This research was conducted on female rats, aged 12 months (n = 72 rats). Rats were grouped into 5 groups: tempe flour, tofu flour, estradiol, casein and non-ovariectomized. The intervention was carried out for two months with three observation points; i) in the second week, ii) fifth week and iii) eighth week. Estrogen serum analysis was done by ELISA (Estradiol EIA-2693). The mean and the differences between treatment groups were analysed using one way ANOVA with post hoc polynomial contrasts (LSD). The highest estrogen serum in the second week intervention was found in the estradiol group followed by the tempe flour, tofu flour, non-ovariectomized and casein groups, respectively. The tempe flour group had the highest mean serum estrogen levels in the fifth week, followed by the estradiol group, non-ovariectomized group, tofu group and casein group. At the eighth week of intervention, the highest estrogen serum level was found in the tempe flour group followed by the estradiol group, tofu flour group, non ovariectomy group and casein group. Interventions in the fifth and eighth weeks showed significant differences between groups (p < 0.05). It was concluded that tempe flour rendered twice the serum estrogen level compared to tofu flour. Further research is needed in the form of clinical trials to prove that effect in humans.
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24
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Li H, Chen H, Chen L, Shen D, Xu X. Expression of oestrogen receptor beta was negatively correlated with disease activity in patients with Crohn's disease involving the terminal ileum. Steroids 2019; 141:36-40. [PMID: 30278183 DOI: 10.1016/j.steroids.2018.09.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 09/19/2018] [Accepted: 09/24/2018] [Indexed: 12/30/2022]
Abstract
Crohn's disease (CD) is a chronic inflammatory disease. The recurrence and remission of symptoms in CD patients are associated with changes in hormones, such as in puberty, pregnancy, postpartum and menopause, reflecting that oestrogen and its receptor might play an important role in CD. The study aimed to investigate the expression and clinical significance of oestrogen receptor in patients with CD involving the terminal ileum. Expression of oestrogen receptor alpha (ERα) and oestrogen receptor beta (ERβ) of 37 patients with CD involving the terminal ileum and 21 healthy controls was determined by immunohistochemistry. Disease activity was assessed by Harvey-Bradshow Crohn's disease activity index(Harvey-Bradshow CDAI). Expression of ERα was negative for all cases. Moreover, a reduction of ERβ expression in patients with CD involving the terminal ileum was found, and ERβ expression had a negative correlation with the disease activity index. These data indicate that ERβ might be a predictor of CD activity and a new target for further study in CD endocrine therapy.
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Affiliation(s)
- Hongxia Li
- Department of Gastroenterology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Hong Chen
- Department of Gastroenterology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China.
| | - Lu Chen
- Department of Gastroenterology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Duo Shen
- Department of Gastroenterology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Xiaoxin Xu
- Department of Gastroenterology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
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Dwivedi S, Madeshiya AK, Singh S, Chandra A, Mahdi AA. Association of APOE − 219G > T and − 427T > C polymorphic variants in transcriptional regulatory region of APOE gene with gallbladder stone: A north Indian case-control study. Meta Gene 2018. [DOI: 10.1016/j.mgene.2018.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Järvinen E, Deng F, Kidron H, Finel M. Efflux transport of estrogen glucuronides by human MRP2, MRP3, MRP4 and BCRP. J Steroid Biochem Mol Biol 2018; 178:99-107. [PMID: 29175180 DOI: 10.1016/j.jsbmb.2017.11.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 11/02/2017] [Accepted: 11/16/2017] [Indexed: 01/01/2023]
Abstract
Estrone, estradiol and estriol are endogenous human estrogens that are rapidly conjugated with glucuronic acid in both intestinal and hepatic epithelial cells. The resulting glucuronides, estrone-3-glucuronide (E1-G), estradiol-3- and 17-glucuronides (E2-3G and E2-17G), as well as estriol-3- and 16-glucuronides (E3-3G and E3-16G) are found in human plasma and urine. Unlike E2-17G, the efflux transport of other estrogen glucuronides by human transporters has not yet been investigated comprehensively. We have studied the transport of E1-G, E2-3G, E3-3G, E3-16G and estrone-3-sulfate (E1-S), another important estrogen conjugate, using the vesicular transport assay with recombinant human MRP2, MRP3, MRP4, MDR1 and BCRP that were expressed in insect cells. The transport screening assays revealed that whereas E1-S was a good and specific substrate for BCRP, the less transporter-specific conjugates, E1-G and E2-3G, were still transported by BCRP at 10-fold higher rates than E1-S. BCRP also transported E3-16G at higher rates than the studied MRPs, while it transported E3-3G at lower rates than MRP3. MRP2 exhibited lower or equal transport rates of E1-G, E2-3G, E3-3G and E3-16G in comparison to MRP3 and BCRP in the screening assays, mainly due to its high Km values, between 180 and 790 μM. MRP3 transported all the tested glucuronides at rather similar rates, at Km values below 20 μM, but lower Vmax values than other transporters. In the case of E3-3G, MRP3 was the most active transporter in the screening assay. MRP4 transported only E3-16G at considerable rates, while none of the tested estrogen conjugates was transported by MDR1 at higher rates than control vesicles. These new results, in combination with previously reported in vivo human data, stimulate our understanding on the substrate specificity and role of efflux transporters in disposition of estrogen glucuronides in humans.
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Affiliation(s)
- Erkka Järvinen
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Finland
| | - Feng Deng
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Finland
| | - Heidi Kidron
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Finland
| | - Moshe Finel
- Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Finland.
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Menapoz Osteoporozunda Östrojenin Kritik Rolü. JOURNAL OF CONTEMPORARY MEDICINE 2017. [DOI: 10.16899/gopctd.315052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Reducing posttreatment relapse in cleft lip palatal expansion using an injectable estrogen-nanodiamond hydrogel. Proc Natl Acad Sci U S A 2017; 114:E7218-E7225. [PMID: 28808036 DOI: 10.1073/pnas.1704027114] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Patients with cleft lip and/or palate (CLP), who undergo numerous medical interventions from infancy, can suffer from lifelong debilitation caused by underdeveloped maxillae. Conventional treatment approaches use maxillary expansion techniques to develop normal speech, achieve functional occlusion for nutrition intake, and improve esthetics. However, as patients with CLP congenitally lack bone in the cleft site with diminished capacity for bone formation in the expanded palate, more than 80% of the patient population experiences significant postexpansion relapse. While such relapse has been a long-standing battle in craniofacial care of patients, currently there are no available strategies to address this pervasive problem. Estrogen, 17β-estradiol (E2), is a powerful therapeutic agent that plays a critical role in bone homeostasis. However, E2's clinical application is less appreciated due to several limitations, including its pleiotropic effects and short half-life. Here, we developed a treatment strategy using an injectable system with photo-cross-linkable hydrogel (G) and nanodiamond (ND) technology to facilitate the targeted and sustained delivery of E2 to promote bone formation. In a preclinical expansion/relapse model, this functionalized E2/ND/G complex substantially reduced postexpansion relapse by nearly threefold through enhancements in sutural remodeling compared with unmodified E2 administration. The E2/ND/G group demonstrated greater bone volume by twofold and higher osteoblast number by threefold, compared with the control group. The E2/ND/G platform maximized the beneficial effects of E2 through its extended release with superior efficacy and safety at the local level. This broadly applicable E2 delivery platform shows promise as an adjuvant therapy in craniofacial care of patients.
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Saraf MK, Jeng YJ, Watson CS. R-equol, a synthetic metabolite of the dietary estrogen daidzein, modulates the nongenomic estrogenic effects of 17β-estradiol in pituitary tumor cells. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/23273747.2016.1226697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wysokinski D, Blasiak J, Pawlowska E. Role of RUNX2 in Breast Carcinogenesis. Int J Mol Sci 2015; 16:20969-93. [PMID: 26404249 PMCID: PMC4613236 DOI: 10.3390/ijms160920969] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 08/14/2015] [Accepted: 08/20/2015] [Indexed: 12/12/2022] Open
Abstract
RUNX2 is a transcription factor playing the major role in osteogenesis, but it can be involved in DNA damage response, which is crucial for cancer transformation. RUNX2 can interact with cell cycle regulators: cyclin-dependent kinases, pRB and p21Cip1 proteins, as well as the master regulator of the cell cycle, the p53 tumor suppressor. RUNX2 is involved in many signaling pathways, including those important for estrogen signaling, which, in turn, are significant for breast carcinogenesis. RUNX2 can promote breast cancer development through Wnt and Tgfβ signaling pathways, especially in estrogen receptor (ER)-negative cases. ERα interacts directly with RUNX2 and regulates its activity. Moreover, the ERα gene has a RUNX2 binding site within its promoter. RUNX2 stimulates the expression of aromatase, an estrogen producing enzyme, increasing the level of estrogens, which in turn stimulate cell proliferation and replication errors, which can be turned into carcinogenic mutations. Exploring the role of RUNX2 in the pathogenesis of breast cancer can lead to revealing new therapeutic targets.
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Affiliation(s)
- Daniel Wysokinski
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Janusz Blasiak
- Department of Molecular Genetics, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Elzbieta Pawlowska
- Department of Orthodontics, Medical University of Lodz, Pomorska 251, 92-216 Lodz, Poland.
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Yamabe N, Kang KS, Lee W, Kim SN, Zhu BT. Estriol blunts postprandial blood glucose rise in male rats through regulating intestinal glucose transporters. Am J Physiol Endocrinol Metab 2015; 308:E370-9. [PMID: 25516546 PMCID: PMC4346740 DOI: 10.1152/ajpendo.00209.2013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite increased total food intake in healthy, late-stage pregnant women, their peak postprandial blood sugar levels are normally much lower than the levels seen in healthy nonpregnant women. In this study, we sought to determine whether estriol (E3), an endogenous estrogen predominantly produced during human pregnancy, contributes to the regulation of the postprandial blood glucose level in healthy normal rats. In vivo studies using rats showed that E3 blunted the speed and magnitude of the blood glucose rise following oral glucose administration, but it did not appear to affect the total amount of glucose absorbed. E3 also did not affect insulin secretion, but it significantly reduced the rate of intestinal glucose transport compared with vehicle-treated animals. Consistent with this finding, expression of the sodium-dependent glucose transporter 1 and 2 was significantly downregulated by E3 treatment in the brush-border membrane and basolateral membrane, respectively, of enterocytes. Most of the observed in vivo effects were noticeably stronger with E3 than with 17β-estradiol. Using differentiated human Caco-2 enterocyte monolayer culture as an in vitro model, we confirmed that E3 at physiologically relevant concentrations could directly inhibit glucose uptake via suppression of glucose transporter 2 expression, whereas 17β-estradiol did not have a similar effect. Collectively, these data showed that E3 can blunt the postprandial glycemic surge in rats through modulating the level of intestinal glucose transporters.
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Affiliation(s)
- Noriko Yamabe
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, Kansas; College of Korean Medicine, Gachon University, Seongnam, Korea
| | - Ki Sung Kang
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, Kansas; College of Korean Medicine, Gachon University, Seongnam, Korea; Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do, Korea; and
| | - Woojung Lee
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do, Korea; and
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do, Korea; and
| | - Bao Ting Zhu
- Department of Pharmacology, Toxicology and Therapeutics, School of Medicine, University of Kansas Medical Center, Kansas City, Kansas; Department of Biology, South University of Science and Technology of China, Shenzhen, Guangdong, China
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Guven S, Lindsey JS, Poudel I, Chinthala S, Nickerson MD, Gerami-Naini B, Gurkan UA, Anchan RM, Demirci U. Functional maintenance of differentiated embryoid bodies in microfluidic systems: a platform for personalized medicine. Stem Cells Transl Med 2015; 4:261-8. [PMID: 25666845 DOI: 10.5966/sctm.2014-0119] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hormone replacement therapies have become important for treating diseases such as premature ovarian failure or menopausal complications. The clinical use of bioidentical hormones might significantly reduce some of the potential risks reportedly associated with the use of synthetic hormones. In the present study, we demonstrate the utility and advantage of a microfluidic chip culture system to enhance the development of personalized, on-demand, treatment modules using embryoid bodies (EBs). Functional EBs cultured on microfluidic chips represent a platform for personalized, patient-specific treatment cassettes that can be cryopreserved until required for treatment. We assessed the viability, differentiation, and functionality of EBs cultured and cryopreserved in this system. During extended microfluidic culture, estradiol, progesterone, testosterone, and anti-müllerian hormone levels were measured, and the expression of differentiated steroidogenic cells was confirmed by immunocytochemistry assay for the ovarian tissue markers anti-müllerian hormone receptor type II, follicle-stimulating hormone receptor, and inhibin β-A and the estrogen biosynthesis enzyme aromatase. Our studies showed that under microfluidic conditions, differentiated steroidogenic EBs continued to secrete estradiol and progesterone at physiologically relevant concentrations (30-120 pg/ml and 150-450 pg/ml, respectively) for up to 21 days. Collectively, we have demonstrated for the first time the feasibility of using a microfluidic chip system with continuous flow for the differentiation and extended culture of functional steroidogenic stem cell-derived EBs, the differentiation of EBs into cells expressing ovarian antigens in a microfluidic system, and the ability to cryopreserve this system with restoration of growth and functionality on thawing. These results present a platform for the development of a new therapeutic system for personalized medicine.
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Affiliation(s)
- Sinan Guven
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jennifer S Lindsey
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ishwari Poudel
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sireesha Chinthala
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Michael D Nickerson
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Behzad Gerami-Naini
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Umut A Gurkan
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Raymond M Anchan
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Utkan Demirci
- BAMM Labs, Canary Center at Stanford for Early Cancer Detection, Stanford University School of Medicine, Palo Alto, California, USA; BAMM Labs, Department of Medicine and Center for Infertility and Reproductive Surgery, Obstetrics Gynecology and Reproductive Biology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Beinhauer J, Bian L, Fan H, Šebela M, Kukula M, Barrera JA, Schug KA. Bulk derivatization and cation exchange restricted access media-based trap-and-elute liquid chromatography–mass spectrometry method for determination of trace estrogens in serum. Anal Chim Acta 2015; 858:74-81. [DOI: 10.1016/j.aca.2014.11.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/17/2014] [Accepted: 11/22/2014] [Indexed: 01/16/2023]
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Sophocleous A, Idris AI. Rodent models of osteoporosis. BONEKEY REPORTS 2014; 3:614. [PMID: 25852854 PMCID: PMC4388108 DOI: 10.1038/bonekey.2014.109] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 10/29/2014] [Indexed: 01/11/2023]
Abstract
The aim of this protocol is to provide a detailed description of male and female rodent models of osteoporosis. In addition to indications on the methods of performing the surgical procedures, the choice of reliable and safe anaesthetics is also described. Post-operative care, including analgesia administration for pain management, is also discussed. Ovariectomy in rodents is a procedure where ovaries are surgically excised. Hormonal changes resulting from ovary removal lead to an oestrogen-deprived state, which enhances bone remodelling, causes bone loss and increases bone fracture risk. Therefore, ovariectomy has been considered as the most common preclinical model for understanding the pathophysiology of menopause-associated events and for developing new treatment strategies for tackling post-menopausal osteoporosis. This protocol also provides a detailed description of orchidectomy, a model for androgen-deficient osteoporosis in rodents. Endocrine changes following testes removal lead to hypogonadism, which results in accelerated bone loss, increasing osteoporosis risk. Orchidectomised rodent models have been proposed to mimic male osteoporosis and therefore remain a valuable tool for understanding androgen deficiency in aged men. Although it would have been particularly difficult to assemble an internationally acceptable description of surgical procedures, here we have attempted to provide a comprehensive guide for best practice in performing ovariectomy and orchidectomy in laboratory rodents. Research scientists are reminded that they should follow their own institution's interpretation of such guidelines. Ultimately, however, all animal procedures must be overseen by the local Animal Welfare and Ethical Review Body and conducted under licences approved by a regulatory ethics committee.
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Affiliation(s)
- Antonia Sophocleous
- Rheumatic Diseases Unit, MRC Institute of Genetics and Molecular Medicine, Centre for Genomic and Experimental Medicine, Western General Hospital, University of Edinburgh, Edinburgh, UK
| | - Aymen I Idris
- Muscular-skeletal pharmacology, Academic Unit of Bone Biology, Mellanby Centre for Bone Research, Department of human metabolism, University of Sheffield, Sheffield, UK
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35
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Sadowski R, Gadzała-Kopciuch R. Isolation and determination of estrogens in water samples by solid-phase extraction using molecularly imprinted polymers and HPLC. J Sep Sci 2013; 36:2299-305. [DOI: 10.1002/jssc.201300366] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 05/09/2013] [Accepted: 05/09/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Radosław Sadowski
- Department of Environmental Chemistry and Bioanalytics; Faculty of Chemistry, Nicolaus Copernicus University; Toruń Poland
| | - Renata Gadzała-Kopciuch
- Department of Environmental Chemistry and Bioanalytics; Faculty of Chemistry, Nicolaus Copernicus University; Toruń Poland
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36
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Kenigsberg L, Balachandar S, Prasad K, Shah B. Exogenous pubertal induction by oral versus transdermal estrogen therapy. J Pediatr Adolesc Gynecol 2013; 26:71-9. [PMID: 22112543 DOI: 10.1016/j.jpag.2011.09.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 09/28/2011] [Indexed: 11/26/2022]
Abstract
Hypogonadal adolescent girls need estrogen therapy for the induction of puberty. For years, oral conjugated estrogens have been used for this purpose, starting at a very low dose, with gradual increments over time, to allow for the maturation of the reproductive organs, in order to mimic physiologic conditions. Several concerns, mainly due to first pass through the liver, are manifest with oral estrogen therapy. With the advent of transdermal estrogens and its improved efficacy profile as well as reduced side effects, it seems reasonable to consider it for pubertal induction. The primary objective of this study was to compare and contrast oral versus transdermal estrogen with regard to metabolism and physiology and to review current available data on transdermal estrogens with respect to exogenous pubertal induction.
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Affiliation(s)
- Lisa Kenigsberg
- Department of Pediatrics, Division of Pediatric Endocrinology, NYU School of Medicine, New York, NY 10016, USA
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37
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Sneitz N, Vahermo M, Mosorin J, Laakkonen L, Poirier D, Finel M. Regiospecificity and Stereospecificity of Human UDP-Glucuronosyltransferases in the Glucuronidation of Estriol, 16-Epiestriol, 17-Epiestriol, and 13-Epiestradiol. Drug Metab Dispos 2013; 41:582-91. [DOI: 10.1124/dmd.112.049072] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Moegele M, Buchholz S, Seitz S, Ortmann O. Vaginal estrogen therapy in postmenopausal breast cancer patients treated with aromatase inhibitors. Arch Gynecol Obstet 2012; 285:1397-402. [PMID: 22212649 DOI: 10.1007/s00404-011-2181-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Accepted: 12/13/2011] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Breast cancer is the most frequent cancer among women with about 1.38 million new cases worldwide every year. Most of these patients are postmenopausal and suffer from hormone receptor positive breast tumors. About 50% of postmenopausal women between 50 and 60 years and 72% of women over 70 years suffer from vulvovaginal athrophy (VVA). Adjuvant treatment with aromatase inhibitors (AIs) improves outcomes in postmenopausal women with hormone receptor positive early stage breast cancer compared with tamoxifen. A frequent side effect of AI use is VVA with symptoms like vaginal dryness, vaginitis, pruritus, dyspareunia and cystitis. MATERIALS AND METHODS We searched major databases (i.e. pubmed) with the following selection criteria: breast cancer, hormone therapy, vaginal estrogen, aromatase inhibitor, vaginal atrophy, serum estrogen levels. CONCLUSIONS Vaginal administration of estradiol is a well known and safe alternative to systemic estrogen therapy, but studies demonstrated significant increases in plasma concentrations of estradiol. Such observations have also been reported in postmenopausal breast cancer patients treated with AIs. Further studies are needed to explore risk of breast cancer recurrence after vaginal estrogen application for patients on adjuvant endocrine therapy with AIs.
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Affiliation(s)
- M Moegele
- Department of Obstetrics and Gynecology, University Medical Center Regensburg, Landshuter Str. 65, 93053 Regensburg, Germany
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Jeyakumar M, Carlson KE, Gunther JR, Katzenellenbogen JA. Exploration of dimensions of estrogen potency: parsing ligand binding and coactivator binding affinities. J Biol Chem 2011; 286:12971-82. [PMID: 21321128 PMCID: PMC3075970 DOI: 10.1074/jbc.m110.205112] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 02/04/2011] [Indexed: 12/19/2022] Open
Abstract
The estrogen receptors, ERα and ERβ, are ligand-regulated transcription factors that control gene expression programs in target tissues. The molecular events underlying estrogen action involve minimally two steps, hormone binding to the ER ligand-binding domain followed by coactivator recruitment to the ER·ligand complex; this ligand·receptor·coactivator triple complex then alters gene expression. Conceptually, the potency of an estrogen in activating a cellular response should reflect the affinities that characterize both steps involved in the assembly of the active ligand·receptor·coactivator complex. Thus, to better understand the molecular basis of estrogen potency, we developed a completely in vitro system (using radiometric and time-resolved FRET assays) to quantify independently three parameters: (a) the affinity of ligand binding to ER, (b) the affinity of coactivator binding to the ER·ligand complex, and (c) the potency of ligand recruitment of coactivator. We used this system to characterize the binding and potency of 12 estrogens with both ERα and ERβ. Some ligands showed good correlations between ligand binding affinity, coactivator binding affinity, and coactivator recruitment potency with both ERs, whereas others showed correlations with only one ER subtype or displayed discordant coactivator recruitment potencies. When ligands with low receptor binding affinity but high coactivator recruitment potencies to ERβ were evaluated in cell-based assays, elevation of cellular coactivator levels significantly and selectively improved their potency. Collectively, our results indicate that some low affinity estrogens may elicit greater cellular responses in those target cells that express higher levels of specific coactivators capable of binding to their ER complexes with high affinity.
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Affiliation(s)
- M. Jeyakumar
- From the Department of Chemistry, University of Illinois, Urbana, Illinois 61801
| | - Kathryn E. Carlson
- From the Department of Chemistry, University of Illinois, Urbana, Illinois 61801
| | - Jillian R. Gunther
- From the Department of Chemistry, University of Illinois, Urbana, Illinois 61801
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Perez APS, Biancardi MF, Góes RM, dos Santos FA, Taboga SR. Exposure to ethinylestradiol during prenatal development and postnatal supplementation with testosterone causes morphophysiological alterations in the prostate of male and female adult gerbils. Int J Exp Pathol 2011; 92:121-30. [PMID: 21314741 PMCID: PMC3081515 DOI: 10.1111/j.1365-2613.2010.00756.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2010] [Accepted: 12/01/2010] [Indexed: 01/26/2023] Open
Abstract
Steroids perform significant functions in prostatic development and growth, so that interferences of this equilibrium may predispose the gland to the development of diseases during the life. Embryonic and neonatal exposure to xenoestrogens, many of them with endocrine-disrupting potential, has been related to the induction of disturbances in reproductive system organs. Thus, this study aimed to analyse morphological and immunocytochemical aspects of prostate in both male and female adult gerbils either exposed to ethinylestradiol during the prenatal phase (pregnant females received 10 μg/kg, by gavage) (EE group) or exposed to testosterone (1 mg/kg) during the postnatal period (EE/T group). Serological analysis revealed a rise in estradiol levels in adult males and females of the EE group. A higher incidence of prostatic intraepithelial neoplasia (PIN) was observed in the male and female prostate of the treated groups, besides an increase in collagen and reticular fibres. Immunocytochemistry showed an increase in prostatic epithelial cells immunoreactive to AR and a presence of a smooth muscle layer, evidenced by α actin, in injured regions this way absent in prostatic epithelial buds. These pieces of evidence suggest that the alterations verified in the prostate in adulthood of both sexes may be due to the high oestrogen levels. Either males or females of the EE/T group showed normalized estradiol levels, although prostatic lesions could be observed. While the prostatic gland of male gerbils was more affected than the female prostate, this study showed that the exposure to EE during this critical period of development disrupts the prostate of both sexes in terms of prostatic lesions.
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Affiliation(s)
- Ana Paula Silva Perez
- Graduate Program in Cell and Structural Biology, Institute of Biology, Campinas State UniversityUNICAMP, Campinas, SP, Brazil
| | - Manoel Francisco Biancardi
- Graduate Program in Cell and Structural Biology, Institute of Biology, Campinas State UniversityUNICAMP, Campinas, SP, Brazil
| | - Rejane Maira Góes
- Laboratory of Microscopy and Microanalysis, Department of Biology, UNESP, Institute of Biosciences, Humanities and Exact Sciences, IBILCE, São Paulo State UniversitySão José do Rio Preto, SP, Brazil
| | | | - Sebastião Roberto Taboga
- Laboratory of Microscopy and Microanalysis, Department of Biology, UNESP, Institute of Biosciences, Humanities and Exact Sciences, IBILCE, São Paulo State UniversitySão José do Rio Preto, SP, Brazil
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A-CD Estrogens. I. Substituent Effects, Hormone Potency, and Receptor Subtype Selectivity in a New Family of Flexible Estrogenic Compounds. J Med Chem 2010; 54:433-48. [DOI: 10.1021/jm100513m] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Molecularly imprinted adsorbents for preconcentration and isolation of progesterone and testosterone by solid phase extraction combined with HPLC. ADSORPTION 2010. [DOI: 10.1007/s10450-010-9265-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lappano R, Rosano C, De Marco P, De Francesco EM, Pezzi V, Maggiolini M. Estriol acts as a GPR30 antagonist in estrogen receptor-negative breast cancer cells. Mol Cell Endocrinol 2010; 320:162-70. [PMID: 20138962 DOI: 10.1016/j.mce.2010.02.006] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Revised: 01/25/2010] [Accepted: 02/01/2010] [Indexed: 01/04/2023]
Abstract
Estrogens are structurally related steroids that regulate important physiological processes. 17beta-estradiol (E2) is reversibly oxidized to estrone (E1) and both E2 and E1 can be irreversibly converted to estriol (E3), which also originates directly from androstenedione. The action of E2 has been traditionally explained by the binding to the estrogen receptor (ER) alpha and ER beta, however the G protein-coupled receptor (GPR) 30 has been recently involved in the rapid signaling triggered by estrogens. Although the role of E2 in the development of breast cancer has been largely documented, the contribution of E3 still remains to be completely evaluated. Here, we demonstrate for the first time that E3 acts as a GPR30 antagonist since it was able to inhibit the GPR30-mediated responses such as the rapid ERK activation, the up-regulation of target genes like c-fos and connective tissue growth factor, the proliferative effects observed in ER-negative SkBr3 cells.
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Affiliation(s)
- Rosamaria Lappano
- Dipartimento Farmaco-Biologico, Università della Calabria, Rende (CS), Italy
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Abstract
In this review we discuss the analytical inadequacies of oestradiol assays in relation to the clinical requirements for performing them, and make recommendations for their improvement. The measurement of oestradiol can be requested in a number of clinical scenarios (precocious puberty, infertility, assisted conception, hormone replacement therapy). The very wide dynamic range of oestradiol concentrations is a huge challenge for routine assays, which they are unlikely to meet on theoretical as well as practical grounds. The EQA performance of oestradiol assays in terms of trueness, comparability, recovery and analytical sensitivity leaves much to be desired and indicates that calibration is compromised by poor analytical specificity. To make oestradiol assays fit for purpose requires concerted action by all stakeholders to define analytical quality specifications for the various clinical scenarios involved, and then to encourage concerted action by the diagnostic industry to use the steroid reference measurement system to improve specificity, trueness and traceability.
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Ričanyová J, Gadzała-Kopciuch R, Reiffová K, Buszewski B. Estrogens and Their Analytics by Hyphenated Separation Techniques. Crit Rev Anal Chem 2009. [DOI: 10.1080/10408340802569506] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Abstract
The involvement of estrogen and its receptors in the development of cancer has been known for years. However, the exact mechanism responsible is far from clear. The estrogen-mediated carcinogenic process is complicated by recent findings, which reveal that estrogens have multiple functions in cells, which can be either adverse or beneficial, and that the effects of estrogen may be cell-type or organ dependent. The estrogenic effect may be also greatly influenced by the state of two estrogen receptors, ERalpha and ERbeta. This review will discuss the role and function of estrogens and its receptors in cancers of three categories: (1) Breast cancer and gynecologic cancers, (2) Cancers of endocrine organs, (3) Lung cancer and cancers of digestive system. We will also review some novel treatments aiming to interfere with relevant pathways mediated by estrogens and its receptors.
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Affiliation(s)
- George G Chen
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong SAR, China.
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Kharode Y, Bodine PVN, Miller CP, Lyttle CR, Komm BS. The pairing of a selective estrogen receptor modulator, bazedoxifene, with conjugated estrogens as a new paradigm for the treatment of menopausal symptoms and osteoporosis prevention. Endocrinology 2008; 149:6084-91. [PMID: 18703623 DOI: 10.1210/en.2008-0817] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The menopausal transition is associated with decreased ovarian function and concomitant decline in estrogen production, which may result in physiological effects such as hot flashes, reduced bone mass, and altered lipid profile. It is well established that these unfavorable changes are effectively offset with estrogen therapy (ET) or, in women with a uterus, estrogens in combination with a progestin (hormone therapy). Selective estrogen receptor (ER) modulators (SERMs), which exhibit both ER agonist and antagonist activities depending on the target tissue, have been regarded as offering the potential to provide the benefits of ET and hormone therapy with an improved safety and tolerability profile. To date, no SERM alone has demonstrated an ideal benefit-risk profile for menopausal therapy. The tissue-selective estrogen complex, or the pairing of a SERM with estrogens, may provide an optimal blend of ER agonist and antagonist activities. We evaluated the physiological profile of this novel therapeutic paradigm by using various in vivo models to assess uterine, vasomotor, lipid, and skeletal responses to a tissue-selective estrogen complex partnering bazedoxifene with conjugated estrogens (CE). Bazedoxifene at 3.0 mg/kg effectively antagonized CE-induced uterine stimulation without reversing the positive effects of CE on vasomotor instability. When paired with CE, bazedoxifene at 3.0 mg/kg reduced total cholesterol levels by up to 20% compared with CE alone and significantly increased total bone density relative to control. These preclinical findings showed that the appropriate dose combination of bazedoxifene/CE exhibits positive vasomotor, lipid, and skeletal responses with minimal uterine stimulation.
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Affiliation(s)
- Yogendra Kharode
- Wyeth Research, Women's Health and Musculoskeletal Biology, Collegeville, Pennsylvania 19426, USA
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Yonker JE, Adolfsson R, Eriksson E, Hellstrand M, Nilsson LG, Herlitz A. Verified hormone therapy improves episodic memory performance in healthy postmenopausal women. AGING NEUROPSYCHOLOGY AND COGNITION 2006; 13:291-307. [PMID: 16887775 DOI: 10.1080/138255890968655] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Studies of hormone therapy (HT) and cognition have yielded conflicting results. The aim of this observational study was to examine the effect of estradiol, via serum verified HT (estradiol, estriol, progesterone) and endogenous estradiol, on 108 healthy postmenopausal women's cognitive performance. The results demonstrated that the 43 HT-users performed at a significantly higher level than non-users on episodic memory tasks and on a verbal fluency task, whereas HT-users and non-users did not differ on tasks assessing semantic memory and spatial visualization. In addition, there was a positive relationship between serum estradiol level and episodic memory performance, indicating that postmenopausal HT is associated with enhanced episodic memory and verbal fluency, independent of age and education. These observational results suggest that HT use may be sufficient to exert small, yet positive effects on female sensitive cognitive tasks. Hormone therapy compliance and formulation is discussed as confounding factors in previous research.
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Schmidt S, Michna H, Diel P. Combinatory effects of phytoestrogens and 17beta-estradiol on proliferation and apoptosis in MCF-7 breast cancer cells. J Steroid Biochem Mol Biol 2005; 94:445-9. [PMID: 15876409 DOI: 10.1016/j.jsbmb.2004.12.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2004] [Accepted: 12/16/2004] [Indexed: 10/25/2022]
Abstract
Phytoestrogens have been described to be weak estrogens, SERMs or exhibit antiestrogenic properties. However, information about their activity in presence of estrogens is limited. Therefore, we have analysed the dose dependent combinatory activity of the phytoestrogens genistein (Gen), daidzein (Dai) and coumestrol (Cou), and 17beta-estradiol (E2) on cell proliferation and apoptosis induction in human MCF-7 breast cancer cells. Neither additive nor antagonistic effects on proliferation could be observed, but in contrast all phytoestrogens possessed the ability to inhibit apoptosis in the presence of 17beta-estradiol. In summary, our in vitro results demonstrate that Gen does not exhibit any antiestrogenic properties. The additive growth stimulatory effects of Gen, Dai and Cou in the presence of E2 are not the result of a stimulation of proliferation; these phytoestrogens, at least in MCF-7 cells, could be characterised as inhibitors of apoptosis.
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Affiliation(s)
- Simone Schmidt
- Institut für Kreislaufforschung und Sportmedizin, Abt. Molekulare und Zelluläre Sportmedizin, Deutsche Sporthochschule Köln, 50927 Köln, Germany
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Spera D, Cabrera G, Fiaschi R, Carlson KE, Katzenellenbogen JA, Napolitano E. Estradiol derivatives bearing sulfur-containing substituents at the 11beta or 7alpha positions: versatile reagents for the preparation of estrogen conjugates. Bioorg Med Chem 2005; 12:4393-401. [PMID: 15265491 DOI: 10.1016/j.bmc.2004.06.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2004] [Accepted: 06/07/2004] [Indexed: 11/15/2022]
Abstract
Estradiol derivatives bearing HS-, HSCH(2)-, HSCH(2)CH(2)-, MeS-, MeSCH(2)-, MeSCH(2)CH(2)-, or PhCH(2)SCH(2)CH(2)-groups at the 11beta position or an HS-group at the 7alpha position have been synthesized, and their binding affinity to the estrogen receptor (ER) determined. Nearly all of these substituted estrogens retain high binding affinity, and at the 11beta position, the sulfur atom has an effect on ER binding that is similar to that of a carbon atom. These thiol derivatives are promising intermediates for the preparation of a variety of estradiol conjugates. The methyl sulfides, in particular, might potentially be developed as (11)C-labeled agents for imaging ER-positive tumors by positron emission tomography.
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Affiliation(s)
- Daniela Spera
- Dipartimento di Chimica Bioorganica e Biofarmacia, Via Bonanno 33, 56127 Pisa, Italy
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