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Liu J, Huang J, Gao L, Sang Y, Li X, Zhou G, Cao L, Lu H, Zhou X, Ren L. Maternal exposure to PM 2.5 disrupting offspring spermatogenesis through induced sertoli cells apoptosis via inhibin B hypermethylation in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 241:113760. [PMID: 35709672 DOI: 10.1016/j.ecoenv.2022.113760] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/16/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023]
Abstract
Particulate Matter 2.5 (PM2.5) disrupts endocrine functions and may negatively affect sperm quality and quantity in males; however, the long-term effects and potential mechanisms of this effect are unknown. This study aimed to investigate the epigenetic mechanism of maternal exposure to PM2.5-induced inhibin B hypermethylation in male offspring. In this experiment design, pregnant C57BL/6 mice were treated with two doses of PM2.5 (4.8 and 43.2 mg/kg bw). The membrane control group was given a sampling membrane and the control group received nothing. Following the formation of the vaginal plug, intratracheal instillation of PM2.5 was administered every three days until delivery of the pups. To assess the effect of PM2.5 in vitro, TM4 cells, a Sertoli-like cell line, was treated with different concentrations (0, 25, 50, 100 μg/mL) of PM2.5 for 24 h. The results displayed that Sperm motility, as well as the number of adult offspring, was decreased in the PM2.5 exposed group relative to the untreated controls. Increased vacuolization was observed in the Sertoli cells of mice that were exposed to PM2.5 in utero. The levels of inhibin and testosterone were reduced and the levels of LH and FSH increased in the PM2.5 groups relative to the untreated controls. In vitro, PM2.5 resulted in cell cycle inhibition as well as increased apoptosis in TM4 cells. Moreover, PM2.5-induced inhibin B hypermethylation and activation of the p21/Cleaved Caspase-3 pathway resulted in TM4 cell apoptosis that was rescued through the use of a DNA methylation inhibitor. Together, our data suggest that prenatal exposure to PM2.5 results in inhibin B hypermethylation and can activate the p21/Cleaved Caspase-3 pathway, resulting in Sertoli cell apoptosis, aberrant secretion of androgen binding protein, and decreased testosterone, thus resulting in the inhibition of spermatogenesis.
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Affiliation(s)
- Jianhui Liu
- Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China
| | - Jing Huang
- School of Nursing, Peking University, Beijing 100191, China
| | - Leqiang Gao
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Yujian Sang
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Xiangyang Li
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Guiqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China
| | - Linlin Cao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, China; National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), China
| | - Hong Lu
- School of Nursing, Peking University, Beijing 100191, China
| | - Xianqing Zhou
- Department of Toxicology and Hygienic Chemistry, School of Public Health, Capital Medical University, Beijing 100069, China.
| | - Lihua Ren
- School of Nursing, Peking University, Beijing 100191, China.
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Hypertension Induces Gonadal Macrophage Imbalance, Inflammation, Lymphangiogenesis, and Dysfunction. Clin Sci (Lond) 2022; 136:879-894. [PMID: 35532133 DOI: 10.1042/cs20220117] [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: 02/16/2022] [Revised: 05/03/2022] [Accepted: 05/09/2022] [Indexed: 11/17/2022]
Abstract
Hypertension (HTN) is associated with gonadal dysfunction and impaired reproductive health in both men and women. An imbalance in the systemic and renal pro-inflammatory (M1)/anti-inflammatory (M2) macrophage ratio, increased inflammation, and inflammation-associated lymphangiogenesis have been observed in animals with HTN. However, the impact of HTN on gonadal macrophages, inflammation, and lymphatics remains obscure. We hypothesized that salt-sensitive HTN (SSHTN) and HTN alters gonadal macrophage polarization, which is associated with inflammation, inflammation-associated lymphangiogenesis and reproductive dysfunction. Flow cytometry analyses revealed a significant increase in M1 macrophages in the testes of SSHTN and nitric oxide synthase inhibition-induced HTN (LHTN) mice, with a concurrent decrease in M2 macrophages in SSHTN mice yet an increase in M2 macrophages in LHTN mice. Ovaries from SSHTN mice exhibited increase in M1 and a decrease in M2 macrophages, while ovaries from LHTN mice had a significant increase in M2 and a decrease in M1 macrophages. Gene expression patterns of pro-inflammatory cytokines revealed gonadal inflammation in all hypertensive mice. Increased lymphatic vessel density in the gonads of both male and female hypertensive mice was confirmed by immunofluorescence staining for LYVE-1. HTN adversely affected the expression pattern of steroidogenic enzymes, hormone receptors, and secretory proteins in both the testes and ovaries. In line with these results, male hypertensive mice also presented with decreased sperm concentration, and increased percentage of sperm with abnormal morphology, damaged acrosome, and non-functional mitochondrial activity. These data demonstrate that HTN alters gonadal macrophage polarization, which is associated with gonadal inflammation, inflammation-associated lymphangiogenesis, and dysfunction.
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Abstract
Oxytocin and oxytocin receptors are synthesized in the periphery where paracrine/autocrine actions have been described alongside endocrine actions effected by central release of oxytocin from the posterior pituitary. In the female reproductive system, classical actions of uterine contraction and milk ejection from mammary glands are accompanied by actions in the ovaries where roles in steroidogenesis, follicle recruitment and ovulation have been described. Steroidogenesis, contractile activity, and gamete health are similarly affected by oxytocin in the male reproductive tract. In the cardiovascular system, a local oxytocinergic system appears to play an important cardio-protective role. This role is likely associated with emerging evidence that peripheral oxytocin is an important hormone in the endocrinology of glucose homeostasis due to its actions in adipose, the pancreas, and the largely ignored oxytocinergic systems of the adrenal glands and liver. Gene polymorphisms are shown to be associated with a number of reported traits, not least factors associated with metabolic syndrome.
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Affiliation(s)
- Stephen J Assinder
- Discipline of Physiology, School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW, Australia.
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Nurdiana N, Chania P, Nurvitasari R, Nisa A, Diana SW, Rochmah EI, Mayangsari E, Rahardjo B, Indrawan W, Khotimah H, Mintaroem K, Irnandi DF. The Effect of Soy Milk on Mounting Latency, Mounting Frequency, and Reproductive Development in Male Wistar Rats (Rattus Norvegicus). Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIM: This research aims to examine the effects of soy milk on mounting latency (ML), mounting frequency (MF), estrogen levels, androgen-binding protein (ABP) expression, and spermatogenesis in male rats (Rattus norvegicus).
METHODS: Twenty-four male wistar rats (Rattus norvegicus) aged 4 weeks were divided into four groups. Control group (given a normal diet), P1; P2; P3 (given the normal diet and soy milk powder at doses of 7.1; 14.2; 21.3 g/KgBW/day, respectively) for 6 weeks. Observation of ML and MF were performed at 9 weeks 5 days of age, and rat surgery was performed at 10 weeks of age. Analysis of estrogen hormone levels was conducted by enzyme-linked immunosorbent assay (ELISA), ABP staining was using immunohistochemistry method, testicular spermatogenesis was observed using histopathological methods, and observation of spermatozoa was performed under the microscope.
RESULTS: The results showed no significant reduction of ML and MF, estrogen levels, and ABP expression (p ≤ 0.256; 0.865; 0.959, respectively) in male rat, but there was a significant decrease in the number, morphology, motility of spermatozoa, and testicular histophatology, (p ≤ 0.000, 0.003, 0.008, 0.000, respectively).
CONCLUSION: The administrassion of soy milk in various doses (7.1;14.2;21.3 g/KgBW/day) in male Wistar rats (Rattus norvegicus) had showed significantly difference on histopathological evaluation using Johnson’s scoring system, sperm quantity and quality, while on mounting latency and frequency, estrogen levels, and ABP expressions did not show significantly difference between groups. That describe of isoflavone in soy milk can affect several aspects related to male endocrine and reproductive development.
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Stadler B, Whittaker MR, Exintaris B, Middendorff R. Oxytocin in the Male Reproductive Tract; The Therapeutic Potential of Oxytocin-Agonists and-Antagonists. Front Endocrinol (Lausanne) 2020; 11:565731. [PMID: 33193084 PMCID: PMC7642622 DOI: 10.3389/fendo.2020.565731] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/07/2020] [Indexed: 12/12/2022] Open
Abstract
In this review, the role of oxytocin and oxytocin-like agents (acting via the oxytocin receptor and belonging to the oxytocin-family) in the male reproductive tract is considered. Previous research (dating back over 60 years) is revised and connected with recently found aspects of the role oxytocin plays in male reproductive health. The local expression of oxytocin and its receptor in the male reproductive tract of different species is summarized. Colocalization and possible crosstalk to other agents and receptors and their resulting effects are discussed. The role of the newly reported oxytocin focused signaling pathways in the male reproductive tract, other than mediating contractility, is critically examined. The structure and effect of the most promising oxytocin-agonists and -antagonists are reviewed for their potential in treating male disorders with origins in the male reproductive tract such as prostate diseases and ejaculatory disorders.
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Affiliation(s)
- Beatrix Stadler
- Institute of Anatomy and Cell Biology, Justus-Liebig-University, Giessen, Germany
| | - Michael R. Whittaker
- Drug Discovery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Melbourne, VIC, Australia
| | - Betty Exintaris
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Melbourne, VIC, Australia
| | - Ralf Middendorff
- Institute of Anatomy and Cell Biology, Justus-Liebig-University, Giessen, Germany
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Dalmazzo A, Losano JDA, Angrimani DSR, Pereira IVA, Goissis MD, Francischini MCP, Lopes E, Minazaki CK, Blank MH, Cogliati B, Pereira RJG, Barnabe VH, Nichi M. Immunolocalisation and expression of oxytocin receptors and sex hormone-binding globulin in the testis and epididymis of dogs: correlation with sperm function. Reprod Fertil Dev 2020; 31:1434-1443. [PMID: 31046900 DOI: 10.1071/rd18452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 02/25/2019] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to confirm gene and protein expression of oxytocin receptor (OTR) and sex hormone-binding globulin (SHBG) in the testis and epididymis of dogs, correlating these data with sperm quality and production and testosterone concentrations. Positive correlations were found between OTR and SHBG expression in both the testis and epididymis. Testicular OTR expression was positively associated with plasma membrane and acrosome integrity in canine spermatozoa, whereas SHBG expression in the testis was positively correlated with various sperm characteristics, such as sperm concentration, total and progressive motility, plasma membrane integrity and acrosome integrity. Testicular expression of both OTR and SHBG was negatively correlated with low sperm mitochondrial activity. In the epididymis, SHBG expression was only positively correlated with plasma membrane integrity. Analysis of protein expression revealed that testicular OTR was positively correlated with testosterone concentrations and negatively correlated with the absence of sperm mitochondrial activity. In addition, SHBG expression in the testes was associated with epididymis SHBG expression and morphologically normal cells. Immunohistochemical (IHC) analysis revealed the presence of both OTR and SHBG in testicular smooth muscles and Leydig cells. However, in the epididymis, OTR was only located in smooth muscle cells, whereas neither IHC nor western blotting detected SHBG. Together, the results of this study suggest that OTR and SHBG play key roles in spermatogenesis and sperm maturation, being essential for male reproductive success.
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Affiliation(s)
- Andressa Dalmazzo
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - João D A Losano
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Daniel S R Angrimani
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Isabel V A Pereira
- Department of Pathology, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Marcelo D Goissis
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Maria C P Francischini
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Everton Lopes
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | | | - Marcel H Blank
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Bruno Cogliati
- Department of Pathology, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Ricardo J G Pereira
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Valquiria H Barnabe
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil
| | - Marcilio Nichi
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP 05508-270, Brazil; and Corresponding author.
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Shobana N, Kumar MK, Navin AK, Akbarsha MA, Aruldhas MM. Prenatal exposure to excess chromium attenuates transcription factors regulating expression of androgen and follicle stimulating hormone receptors in Sertoli cells of prepuberal rats. Chem Biol Interact 2020; 328:109188. [PMID: 32679048 DOI: 10.1016/j.cbi.2020.109188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 06/06/2020] [Accepted: 06/25/2020] [Indexed: 01/06/2023]
Abstract
We have reported that gestational exposure to hexavalent chromium (CrVI) represses androgen receptor (Ar) and follicle stimulating hormone receptor (Fshr) in Sertoli cells (SCs) of adult rats, while the mechanism underlying remains obscure. We tested the hypothesis "transient gestational exposure to CrVI during the critical embryonic windows of testicular differentiation and growth may have adverse impact on transcription factors controlling the expression of Ar and Fshr in SCs of the F1 progeny". CrVI (K2Cr2O7) was given through drinking water (50 ppm, 100 ppm and 200 ppm), to pregnant rats from gestational day 9-14 (testicular differentiation) and 15 to 21 (prenatal differentiation and proliferation of SC); male progenies were sacrificed on postnatal day 30 (Completion of postnatal SC maturation). A significant increase in free radicals and decrease in enzymatic and non-enzymatic antioxidants were observed in SCs of experimental rats. Real time PCR and western blot data showed decreased expression of Ar, Fshr, Inhibin B, Transferrin, Androgen binding protein, Claudin 11 and Occludin in SCs of experimental rats; concentrations of lactate, pyruvate and retinoic acid also decreased. Serum FSH, luteinizing hormone and estradiol increased, whereas testosterone and prolactin decreased in experimental rats. Western blot detection revealed decreased levels of transcription factors regulating Fshr viz., USF-1, USF-2, SF-1, c-fos, c-jun and GATA 1, and those of Ar viz., Sp-1, ARA54, SRC-1 and CBP in experimental rats, whereas the levels of cyclinD1 and p53, repressors of Ar increased. ChIP assay detected decreased USF-1 and USF-2 binding to Fshr promoter, and binding of Sp-1 to Ar promoter. We conclude that gestational exposure to CrVI affects SC structure and function in F1 progeny by inducing oxidative stress and diminishing the expression of Ar and Fshr through attenuation of their specific transcriptional regulators and their interaction with the respective promoter.
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Affiliation(s)
- Navaneethabalakrishnan Shobana
- Department of Endocrinology, Dr.A.L.M Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, 600113, India
| | - Mani Kathiresh Kumar
- Department of Endocrinology, Dr.A.L.M Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, 600113, India
| | - Ajit Kumar Navin
- Department of Endocrinology, Dr.A.L.M Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, 600113, India
| | | | - Mariajoseph Michael Aruldhas
- Department of Endocrinology, Dr.A.L.M Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai, 600113, India.
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Pang J, Han L, Liu Z, Zheng J, Zhao J, Deng K, Wang F, Zhang Y. ULK1 affects cell viability of goat Sertoli cell by modulating both autophagy and apoptosis. In Vitro Cell Dev Biol Anim 2019; 55:604-613. [PMID: 31359348 DOI: 10.1007/s11626-019-00371-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 05/15/2019] [Indexed: 12/01/2022]
Abstract
Sertoli cells (SCs) are necessary for proper germ cell development and viability. Unc-51 like autophagy activating kinase (ULK1) protein kinase is an important regulator of autophagy activation. This study aims to investigate the role of autophagy promoter ULK1 on cell viability of goat SCs. Our results showed that ULK1 knockdown in goat SCs decreased autophagy activation, which was confirmed by decreased expression of autophagy-related markers including LC3, Beclin1, Atg5, and Atg7 (P < 0.05). Meanwhile, lower ULK1 levels resulted in decreased expressions of goat SC marker genes ABP, AMH, FASL, and GATA4. However, a reverse trend of these parameters occurred when the goat SCs were transfected with ULK1 overexpression construct; higher ULK1 levels in goat SCs also decreased the ratio of Bax/Bcl-2. Moreover, ULK1 overexpression in goat SCs activated the autophagy levels when cells were exposed to an environmental contaminant bisphenol A (BPA). The above results indicated that ULK1 gene might play important roles in goat SC function by regulating cell viability.
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Affiliation(s)
- Jing Pang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Le Han
- State Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Zifei Liu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jian Zheng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jie Zhao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Kaiping Deng
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Feng Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Yanli Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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Caldwell JD, Londe K, Ochs SD, Hajdu Z, Rodewald A, Gebhart VM, Jirikowski GF. Three steroid-binding globulins, their localization in the brain and nose, and what they might be doing there. Steroids 2019; 142:48-54. [PMID: 29246492 DOI: 10.1016/j.steroids.2017.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 10/06/2017] [Accepted: 12/07/2017] [Indexed: 12/01/2022]
Abstract
Steroid-binding globulins (SBGs) such as sex hormone binding globulin, corticosteroid binding globulin, and vitamin-D binding protein are receiving increasing notice as being actively involved in steroid actions. This paper reviews data of all three of these SBGs, focusing on their presence and possible activity in the brain and nose. We have found all three proteins in the brain in limbic areas such as the paraventricular (PVN) and supraoptic nuclei (SON) as well as other areas of the hypothalamus, hippocampus, and medial preoptic area. There is also evidence that all three are made in the PVN and SON, in conjunction with the neuropeptides oxytocin and vasopressin. The localization of these three SBGs is more variable within areas of the main olfactory area and the vomeronasal organ. However, all three are found in the mucus of these areas, suggesting that one of their functions is to sequester aerosol steroids, such as pheromones, and deliver them to sensory cells and then to deeper sensory areas. In this manuscript, we present multiple models of SBG action including: A) SBG binding to a membrane receptor, B) this SBG receptor being associated with a larger protein complex including cytoplasmic steroid receptors, C) when the SBGs binds to their SBG receptors, second messengers within the cells respond, D) after SBG binding to its receptor, it releases its associated steroid into the membrane's lipid bilayer, from which it gains access into the cell only when bound by an internal protein, E) the SBG, possibly with its bound SBG receptor, is internalized into the cell from which it can gain access to numerous organelles and possibly the cell's nucleus or F) associate with intracellular steroid receptors, G) SBGs produced in target cells are released from those cells upon specific stimulation, and H) according to the Free Steroid Hypothesis steroids released from the extracellular SBG passively diffuse across the plasma membrane of the cell. These models move the area of steroid endocrinology forward by providing important paths of steroid activity within many steroid target cells.
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Affiliation(s)
- J D Caldwell
- Department of Pharmacology, Edward Via College of Osteopathic Medicine and Gibbs Research Center, 350 Howard Street, Spartanburg, SC, USA.
| | - K Londe
- Department of Pharmacology, Edward Via College of Osteopathic Medicine and Gibbs Research Center, 350 Howard Street, Spartanburg, SC, USA
| | - S D Ochs
- Department of Pharmacology, Edward Via College of Osteopathic Medicine and Gibbs Research Center, 350 Howard Street, Spartanburg, SC, USA
| | - Z Hajdu
- Department of Pharmacology, Edward Via College of Osteopathic Medicine and Gibbs Research Center, 350 Howard Street, Spartanburg, SC, USA
| | - A Rodewald
- Institute of Anatomy, Anatomy II, Jena University Hospital, Jena, Germany
| | - V M Gebhart
- Institute of Anatomy, Anatomy II, Jena University Hospital, Jena, Germany
| | - G F Jirikowski
- Institute of Anatomy, Anatomy II, Jena University Hospital, Jena, Germany
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10
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Spermatogenesis in humans and its affecting factors. Semin Cell Dev Biol 2016; 59:10-26. [PMID: 27143445 DOI: 10.1016/j.semcdb.2016.04.009] [Citation(s) in RCA: 258] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/13/2016] [Accepted: 04/15/2016] [Indexed: 12/13/2022]
Abstract
Spermatogenesis is an extraordinary complex process. The differentiation of spermatogonia into spermatozoa requires the participation of several cell types, hormones, paracrine factors, genes and epigenetic regulators. Recent researches in animals and humans have furthered our understanding of the male gamete differentiation, and led to clinical tools for the better management of male infertility. There is still much to be learned about this intricate process. In this review, the critical steps of human spermatogenesis are discussed together with its main affecting factors.
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11
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Zheng W, Pan S, Wang G, Wang YJ, Liu Q, Gu J, Yuan Y, Liu XZ, Liu ZP, Bian JC. Zearalenone impairs the male reproductive system functions via inducing structural and functional alterations of sertoli cells. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 42:146-155. [PMID: 26851377 DOI: 10.1016/j.etap.2016.01.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 01/15/2016] [Accepted: 01/19/2016] [Indexed: 06/05/2023]
Abstract
The aim of this study was to investigate the effects of ZEA on the cytoskeletal structure, and factors specifically expressed by Sertoli cells. Primary Sertoli cells from rats aged 18-21 days were exposed to increasing ZEA concentrations (0, 5, 10, 20 μg mL(-1)) for 24 h. The results of immunofluorescence showed disruption of α-tubulin filaments and F-actin bundles, and damage to the nucleus of Sertoli cells on exposure to ZEA. In the control group, the protein level expression of androgen-binding protein (ABP), transferrin, vimentin, N-cadherin, and follicle-stimulating hormone receptor (FSHR) were decreased significantly (p<0.05, p<0.01). The mRNA levels of ABP, transferrin, vimentin, N-cadherin, and FSHR varied significantly in the experimental group (p<0.05). The results of enzyme-linked immunosorbent assay indicated a significant decrease in the levels of inhibin-β and transferrin in the cultural supernatants (p<0.05). Additionally, the ultrastructural analysis indicated the absence of mitochondria and Golgi apparatus, and presence of vacuoles in the cytoplasm. These findings showed that ZEA treatment can damage the cytoskeletal structure and affect specific secretory functions of Sertoli cells, which may be an underlying cause of ZEA-induced reproductive toxicity.
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Affiliation(s)
- WangLong Zheng
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - ShunYe Pan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Guangguang Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Ya Jun Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Saybagh District Animal Husbandry and Veterinary Station, Urumqi 830000, Xinjiang, China
| | - Qing Liu
- Jiaozuo Entry-Exit Inspection and Quarantine Bureau of P.R. China, Jiaozuo 454001, Henan, China
| | - JianHong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Xue Zhong Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Zong Ping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Jian Chun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China.
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Abstract
Contrary to the long-held postulate of steroid-hormone binding globulin action, these protein carriers of steroids are major players in steroid actions in the body. This manuscript will focus on our work with sex hormone binding globulin (SHBG) and corticosteroid binding globulin (CBG) and demonstrate how they are actively involved in the uptake, intracellular transport, and possibly release of steroids from cells. This manuscript will also discuss our own findings that the steroid estradiol is taken up into the cell, as demonstrated by uptake of fluorescence labeled estradiol into Chinese hamster ovary (CHO) cells, and into the cytoplasm where it may have multiple actions that do not seem to involve the cell nucleus. This manuscript will focus mainly on events in two compartments of the cell, the plasma membrane and the cytoplasm.
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Affiliation(s)
| | - Gustav F Jirikowski
- Institute of Anatomy II, University Hospital Jena, Friedrich Schiller University, Jena, Germany
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13
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Adedara IA, Ebokaiwe AP, Mathur PP, Farombi EO. Nigerian bonny light crude oil induces endocrine disruption in male rats. Drug Chem Toxicol 2013; 37:198-203. [DOI: 10.3109/01480545.2013.834359] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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14
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Nakhla AM, Hryb DJ, Rosner W, Romas NA, Xiang Z, Kahn SM. Human sex hormone-binding globulin gene expression- multiple promoters and complex alternative splicing. BMC Mol Biol 2009; 10:37. [PMID: 19416531 PMCID: PMC2694190 DOI: 10.1186/1471-2199-10-37] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2008] [Accepted: 05/05/2009] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Human sex hormone-binding globulin (SHBG) regulates free sex steroid concentrations in plasma and modulates rapid, membrane based steroid signaling. SHBG is encoded by an eight exon-long transcript whose expression is regulated by a downstream promoter (P(L)). The SHBG gene was previously shown to express a second major transcript of unknown function, derived from an upstream promoter (P(T)), and two minor transcripts. RESULTS We report that transcriptional expression of the human SHBG gene is far more complex than previously described. P(L) and P(T) direct the expression of at least six independent transcripts each, resulting from alternative splicing of exons 4, 5, 6, and/or 7. We mapped two transcriptional start sites downstream of P(L) and P(T), and present evidence for a third SHBG gene promoter (P(N)) within the neighboring FXR2 gene; PN regulates the expression of at least seven independent SHBG gene transcripts, each possessing a novel, 164-nt first exon (1N). Transcriptional expression patterns were generated for human prostate, breast, testis, liver, and brain, and the LNCaP, MCF-7, and HepG2 cell lines. Each expresses the SHBG transcript, albeit in varying abundance. Alternative splicing was more pronounced in the cancer cell lines. P(L)- P(T)- and P(N)-derived transcripts were most abundant in liver, testis, and prostate, respectively. Initial findings reveal the existence of a smaller immunoreactive SHBG species in LNCaP, MCF-7, and HepG2 cells. CONCLUSION These results extend our understanding of human SHBG gene transcription, and raise new and important questions regarding the role of novel alternatively spliced transcripts, their function in hormonally responsive tissues including the breast and prostate, and the role that aberrant SHBG gene expression may play in cancer.
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Affiliation(s)
- Atif M Nakhla
- Department of Urology, Columbia University, New York, NY, 10032, USA
- Institute for Health Sciences, St Luke's-Roosevelt Hospital, 432 W 58th St Room 405, New York, NY, 10019, USA
| | - Daniel J Hryb
- Department of Urology, Columbia University, New York, NY, 10032, USA
- Institute for Health Sciences, St Luke's-Roosevelt Hospital, 432 W 58th St Room 405, New York, NY, 10019, USA
| | - William Rosner
- Institute for Health Sciences, St Luke's-Roosevelt Hospital, 432 W 58th St Room 405, New York, NY, 10019, USA
- Department of Medicine, Columbia University, New York, NY 10032, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
| | - Nicholas A Romas
- Department of Urology, Columbia University, New York, NY, 10032, USA
- Institute for Health Sciences, St Luke's-Roosevelt Hospital, 432 W 58th St Room 405, New York, NY, 10019, USA
| | - Zhaoying Xiang
- Department of Microbiology and Immunology, Weill Cornell Medical College, New York, NY 10021, USA
| | - Scott M Kahn
- Department of Urology, Columbia University, New York, NY, 10032, USA
- Institute for Health Sciences, St Luke's-Roosevelt Hospital, 432 W 58th St Room 405, New York, NY, 10019, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY 10032, USA
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15
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Yu G, Liu Y, Xie L, Wang X. Involvement of Sertoli cells in spermatogenic failure induced by carbendazim. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2009; 27:287-292. [PMID: 21783954 DOI: 10.1016/j.etap.2008.11.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Revised: 11/11/2008] [Accepted: 11/12/2008] [Indexed: 05/31/2023]
Abstract
The aim of this study is to determine whether Sertoli cells are involved in spermatogenic failure induced by carbendazim, a benzimidazole fungicide that is widely used in agriculture. Total 40 rats were treated with carbendazim by oral gavage at dosages of 0, 20, 100 and 200mg/kg for 60 days. The testis weight, sperm counts, sperm motility and Sertoli cell morphology and secretions including vimentin, ABP, inhibin B, SCFs and SCFm in testis were examined. In 100 and 200mg/kg groups, the testis weight, the sperm counts and motility and SCFm levels were significantly decreased, the sloughing of germ cells and ABP levels were increased, and the vimentin filaments and Sertoli cell morphology were altered. Inhibin B and SCFs levels were unchanged. The results suggested that alterations of Sertoli cell morphology and function were involved in spermatogenic failure induced by carbendazim.
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Affiliation(s)
- Gongchang Yu
- Department of Toxicology, Shandong Academy of Occupational Health and Occupational Disease, Jinan City, Shandong Province, China
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Sendemir E, Herbert Z, Sivukhina E, Zermann DH, Arnold R, Jirikowski GF. Colocalization of Androgen Binding Protein, Oxytocin Receptor, Caveolin 1 and Proliferation Marker p21 in Benign Prostate Hyperplasia. Anat Histol Embryol 2008; 37:325-31. [DOI: 10.1111/j.1439-0264.2008.00848.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sendemir A, Sendemir E, Kosmehl H, Jirikowski GF. Expression of sex hormone-binding globulin, oxytocin receptor, caveolin-1 and p21 in leiomyoma. Gynecol Endocrinol 2008; 24:105-12. [PMID: 17952758 DOI: 10.1080/09513590701690274] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Interaction of sex hormone-binding globulin (SHBG) and oxytocin (OT) is among the factors that control smooth muscle proliferation and tumor growth through the oxytocin receptor (OTR). Also, a close functional interaction of OTR and caveolin-1 has been shown to modulate cell growth and proliferation. METHODS We studied surgical samples from 23 leiomyoma patients (aged 33-66 years) with immunocytochemistry. Specimens from five patients (34-76 years), who had hysterectomy for other reasons, served as controls. Tissue samples were cut into serial 1-microm thick sections for co-localization of SHBG, OTR, proliferation marker p21 and caveolin-1. RESULTS SHBG was found in smooth muscle cells in all samples. OTR staining occurred in most of these cells in myomas, while controls contained only scattered cells positive for OTR. There were no apparent differences in immunostaining for p21, while immunoreactivity for caveolin-1 was observed in most cells in myomas and in only few cells in controls. Caveolin-1 was mostly co-localized with SHBG and OTR in myoma samples whereas controls showed this co-localization only occasionally. CONCLUSIONS Our observations indicate an interaction of SHBG and OTR, associated with caveolin-1, which may account in part for known non-genomic actions of ovarian steroids. Growth of leiomyomas may be linked to these mechanisms.
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Affiliation(s)
- Aynur Sendemir
- Department of Obstetrics and Gynecology, Helios Klinikum Erfurt, Erfurt, Germany
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