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Cristodoro M, Zambella E, Fietta I, Inversetti A, Di Simone N. Dietary Patterns and Fertility. BIOLOGY 2024; 13:131. [PMID: 38392349 PMCID: PMC10886842 DOI: 10.3390/biology13020131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024]
Abstract
Diet has a key role in the reproductive axis both in males and females. This review aims to analyze the impacts of different dietary patterns on fertility. It appears that the Mediterranean diet has a predominantly protective role against infertility, while the Western diet seems to be a risk factor for infertility. Moreover, we focus attention also on dietary patterns in different countries of the World (Middle Eastern diet, Asian diet). In particular, when analyzing single nutrients, a diet rich in saturated fatty acids, cholesterol, animal proteins, and carbohydrates with high glycemic index is highly associated with male and female infertility. Finally, we evaluate the effects of vegetarian, vegan, and ketogenic diets on fertility, which seem to be still unclear. We believe that comprehension of the molecular mechanisms involved in infertility will lead to more effective and targeted treatments for infertile couples.
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Affiliation(s)
- Martina Cristodoro
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milano, Italy
| | - Enrica Zambella
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milano, Italy
| | - Ilaria Fietta
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milano, Italy
| | - Annalisa Inversetti
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milano, Italy
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy
| | - Nicoletta Di Simone
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milano, Italy
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089 Rozzano, Italy
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Bhardwaj JK, Bikal P, Sachdeva SN. Cadmium as an ovarian toxicant: A review. J Appl Toxicol 2024; 44:129-147. [PMID: 37587800 DOI: 10.1002/jat.4526] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 08/18/2023]
Abstract
Cadmium (Cd) is a ubiquitous heavy metal toxicant with no biological function in the human body. Considerably, because of its long biological half-life and very low excretion rate, Cd is inclined to accumulate and cause deleterious effects on various body organs (e.g., liver, kidney, and ovary) in humans and animals. Ovaries are the most vulnerable targets of Cd toxicity. Cd has been shown to induce oxidative stress, follicular atresia, hormonal imbalance, and impairment of oocyte growth and development. Moreover, Cd toxicity has been associated with increasing incidences of menstrual disorders, pregnancy loss, preterm births, delayed puberty, and female infertility. Therefore, it is crucial to understand how Cd poisoning impacts specific ovarian processes for the development of preventive interventions to enhance female fertility. The current review attempts to collate the recent findings on Cd-induced oxidative stress, follicular apoptosis, steroid synthesis inhibition, and teratogenic toxicity, along with their possible mechanisms in the ovarian tissue of different animal species. Additionally, the review also summarizes the studies related to the use of many antioxidants, medicinal herbs, and other compounds as remedial approaches for managing Cd-induced ovarian toxicity.
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Affiliation(s)
- Jitender Kumar Bhardwaj
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Prerna Bikal
- Reproductive Physiology Laboratory, Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Som Nath Sachdeva
- Department of Civil Engineering, National Institute of Technology Kurukshetra, Kurukshetra University, Kurukshetra, Haryana, India
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Vanhorebeek I, Coppens G, Güiza F, Derese I, Wouters PJ, Joosten KF, Verbruggen SC, Van den Berghe G. Abnormal DNA methylation within genes of the steroidogenesis pathway two years after paediatric critical illness and association with stunted growth in height further in time. Clin Epigenetics 2023; 15:116. [PMID: 37468957 PMCID: PMC10354984 DOI: 10.1186/s13148-023-01530-9] [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: 05/24/2023] [Accepted: 07/04/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND Former critically ill children show an epigenetic age deceleration 2 years after paediatric intensive care unit (PICU) admission as compared with normally developing healthy children, with stunted growth in height 2 years further in time as physical correlate. This was particularly pronounced in children who were 6 years or older at the time of critical illness. As this age roughly corresponds to the onset of adrenarche and further pubertal development, a relation with altered activation of endocrine pathways is plausible. We hypothesised that children who have been admitted to the PICU, sex- and age-dependently show long-term abnormal DNA methylation within genes involved in steroid hormone synthesis or steroid sulphation/desulphation, possibly aggravated by in-PICU glucocorticoid treatment, which may contribute to stunted growth in height further in time after critical illness. RESULTS In this preplanned secondary analysis of the multicentre PEPaNIC-RCT and its follow-up, we compared the methylation status of genes involved in the biosynthesis of steroid hormones (aldosterone, cortisol and sex hormones) and steroid sulphation/desulphation in buccal mucosa DNA (Infinium HumanMethylation EPIC BeadChip) from former PICU patients at 2-year follow-up (n = 818) and healthy children with comparable sex and age (n = 392). Adjusting for technical variation and baseline risk factors and corrected for multiple testing (false discovery rate < 0.05), former PICU patients showed abnormal DNA methylation of 23 CpG sites (within CYP11A1, POR, CYB5A, HSD17B1, HSD17B2, HSD17B3, HSD17B6, HSD17B10, HSD17B12, CYP19A1, CYP21A2, and CYP11B2) and 4 DNA regions (within HSD17B2, HSD17B8, and HSD17B10) that were mostly hypomethylated. These abnormalities were partially sex- (1 CpG site) or age-dependent (7 CpG sites) and affected by glucocorticoid treatment (3 CpG sites). Finally, multivariable linear models identified robust associations of abnormal methylation of steroidogenic genes with shorter height further in time, at 4-year follow-up. CONCLUSIONS Children who have been critically ill show abnormal methylation within steroidogenic genes 2 years after PICU admission, which explained part of the stunted growth in height at 4-year follow-up. The abnormalities in DNA methylation may point to a long-term disturbance in the balance between active sex steroids and mineralocorticoids/glucocorticoids after paediatric critical illness, which requires further investigation.
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Affiliation(s)
- Ilse Vanhorebeek
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, Louvain, Herestraat 49, B-3000, Leuven, Belgium
| | - Grégoire Coppens
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, Louvain, Herestraat 49, B-3000, Leuven, Belgium
| | - Fabian Güiza
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, Louvain, Herestraat 49, B-3000, Leuven, Belgium
| | - Inge Derese
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, Louvain, Herestraat 49, B-3000, Leuven, Belgium
| | - Pieter J Wouters
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, Louvain, Herestraat 49, B-3000, Leuven, Belgium
| | - Koen F Joosten
- Division of Paediatric ICU, Department of Neonatal and Paediatric ICU, Erasmus Medical Centre, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Sascha C Verbruggen
- Division of Paediatric ICU, Department of Neonatal and Paediatric ICU, Erasmus Medical Centre, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Greet Van den Berghe
- Clinical Division and Laboratory of Intensive Care Medicine, Department of Cellular and Molecular Medicine, Louvain, Herestraat 49, B-3000, Leuven, Belgium.
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Noubouossie Pouegue J, Mvondo MA. Milicia excelsa (Moraceae) reversed the effects of letrozole-induced aromatase inhibition in rats with polycystic ovary syndrome. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2023; 20:379-386. [PMID: 36617954 DOI: 10.1515/jcim-2022-0352] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/28/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVES Polycystic ovary syndrome (PCOS) is an endocrinopathy affecting 5-20% of women of childbearing age. There is no single drug for the treatment of PCOS and current therapies have significant side effects. This study evaluated the ability of Milica excelsa to improve PCOS symptoms in rats. METHODS Induction of PCOS was achieved using letrozole (a reversible aromatase inhibitor; 1 mg/kg; given orally for 21 days). From day 22, PCOS rats received the aqueous extract of M. excelsa roots (14 and 140 mg/kg). Clomiphene citrate (1 mg/kg) was administered to the positive control. The negative and the normal controls received the vehicle (5% DMSO). Treatments were given orally for 7 or 14 days. Vaginal smears were scrutinized daily during the experiment. Body weight was measured hebdomadal. Animals were sacrificed after the two treatment periods for biochemical and histological analyses. RESULTS Aromatase inhibition caused hyperandrogenism (p<0.001), overweight (p<0.001) and fat accumulation (p<0.001). It also blocked the estrous cycle at the diestrus phase and altered ovarian dynamics as evidenced by the accumulation of cystic (p<0.001) and atretic (p<0.001) follicles. In contrast, M. excelsa induced weight loss (p<0.001), reduction in fat weight (p<0001), and lower serum androgen and LH levels (p<0.001). It also restored the estrous cycle and improved ovarian dynamics by increasing the amount of Graafian follicles (p<0.001) and corpora lutea (p<0.001), and decreasing that of cystic and atretic follicles (p<0.001). CONCLUSIONS Milica excelsa corrected hyperandrogenism and overweight in PCOS animals, and reduced cyst formation and follicle atresia in their ovaries.
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Affiliation(s)
- Jonathan Noubouossie Pouegue
- Department of Animal Biology, Animal Physiology and Phytopharmacology Research Unit, Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Marie Alfrede Mvondo
- Department of Animal Biology, Animal Physiology and Phytopharmacology Research Unit, Faculty of Science, University of Dschang, Dschang, Cameroon
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The Influence of Metabolic Factors and Diet on Fertility. Nutrients 2023; 15:nu15051180. [PMID: 36904180 PMCID: PMC10005661 DOI: 10.3390/nu15051180] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
Infertility is a disease globally affecting 20-30% of the reproductive age female population. However, in up to 50% on recorded cases, problems with infertility are ascribed to men; therefore, it is important to popularize healthy eating also in this group. During the last decade, it has been observed that society's lifestyle changed drastically: reduced energy expenditure in physical activity per day, increased consumption of hypercaloric and high-glycemic-index foods with high content of trans fats, and reduced consumption of dietary fiber, which negatively affects fertility. Increasing evidence points to a link between diet and fertility. It is becoming clear that well-planned nutrition can also contribute to the effectiveness of ART. The low-GI plant-based diet appears to have a positive effect, especially when it is based on Mediterranean dietary patterns: rich in antioxidants, vegetable protein, fiber, MUFA fatty acids, omega-3, vitamins, and minerals. Importantly, this diet has been shown to protect against chronic diseases associated with oxidative stress, which also translates into pregnancy success. As lifestyle and nutrition seem to be important factors affecting fertility, it is worth expanding knowledge in this regard among couples trying to conceive a child.
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Li Y, Jiang Y, Zhang S, Liu H, Zhang C. Association of HOMA-IR with Ovarian Sensitivity Index in Women Undergoing IVF/ICSI: A Retrospective Cohort Study. Diabetes Metab Syndr Obes 2023; 16:309-320. [PMID: 36760577 PMCID: PMC9901483 DOI: 10.2147/dmso.s399105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/24/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Insulin resistance (IR) may adversely impact the in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) outcomes. However, the association of IR with ovarian sensitivity during controlled ovarian hyperstimulation (COH) remains controversial. PURPOSE We aimed to explore the association between homeostasis model assessment of insulin resistance (HOMA-IR) and ovarian sensitivity index (OSI). PATIENTS AND METHODS In this retrospective cohort study, 7836 patients aged between 20 and 39 years with good ovarian reserve were included consecutively between June 2018 and May 2022. HOMA-IR was calculated to evaluate the degree of IR and OSI was used to measure ovarian sensitivity. Owing to skewed distribution, HOMA-IR and OSI were log e transformed to Ln HOMA-IR and Ln OSI. Smoothing splines were generated by generalized additive models to explore the correlation between Ln HOMA-IR and Ln OSI. Then, the relationship between Ln HOMA-IR and Ln OSI was tested with multivariable linear regression model after adjustments for the potential confounders. RESULTS We observed negative association between Ln HOMA-IR and Ln OSI after adjustment for potential confounders by using smoothing spline fitting curves in generalized additive model. In the multivariable linear regression model, after full adjustments, each one unit increase in Ln HOMA-IR was related to reduced Ln OSI values (β = -0.12, 95% CI, -0.15, -0.09). As sensitivity analysis, those who had HOMA-IR of quartile 3 (HOMA-IR 2.33-3.43) and quartile 4 (HOMA-IR ≥3.43) had decreases in Ln OSI values (β = -0.07, 95% CI -0.11, -0.03 and β = -0.18, 95% CI -0.22, -0.13, respectively) when compared with patients in the quartile 1 (HOMA-IR <1.63). Furthermore, stratified and interaction analysis showed a strong inverse association of Ln HOMA-IR with Ln OSI in subgroups of PCOS patients and overweight/obese populations (P-value for interaction <0.0001). CONCLUSION HOMA-IR value was negatively associated with the ovarian sensitivity assessed by OSI. Among the PCOS and overweight/obese populations, this inverse relationship may be strong. These findings will increase the understanding of the contribution of IR to the development of decreased ovarian sensitivity within the assisted reproductive technology (ART) setting. It may have implications for optimizing gonadotropin dose manipulation in patients with IR undergoing IVF/ICSI.
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Affiliation(s)
- Yan Li
- Reproductive Medicine Center, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, Henan, 450003, People’s Republic of China
| | - Yilin Jiang
- Reproductive Medicine Center, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, Henan, 450003, People’s Republic of China
| | - Shaodi Zhang
- Reproductive Medicine Center, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, Henan, 450003, People’s Republic of China
| | - Hai Liu
- Department of Gynaecology and Obstetrics, Xinjiang Production and Construction Corps 13 Division Red Star Hospital, Hami, Xinjiang, 839000, People’s Republic of China
| | - Cuilian Zhang
- Reproductive Medicine Center, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, Zhengzhou, Henan, 450003, People’s Republic of China
- Correspondence: Cuilian Zhang, Reproductive Medicine Center, People’s Hospital of Zhengzhou University, Henan Provincial People’s Hospital, 7 Weiwu Road, Zhengzhou, People’s Republic of China, Tel +86 371 65580852, Email
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Liu WB, Zhu HL, Xiong YW, Lv J, Huang YC, Wang H. Environmental cadmium exposure during gestation impairs fetal brain and cognitive function of adult offspring via reducing placenta-derived E2 level. CHEMOSPHERE 2022; 307:135668. [PMID: 35835241 DOI: 10.1016/j.chemosphere.2022.135668] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 06/21/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Early-life exposure to environmental cadmium (Cd) is known to cause developmental disorders, yet the effect and mechanism of gestational exposure to Cd on the offspring's cognitive function remains unclear. Placenta as a well-established target organ for Cd-impaired fetal development, its role in estrogen regulation and offspring cognitive function is unknown. Our in vivo experiments found that gestational Cd exposure impaired cognitive function in adult male offspring, accompanied with lowered 17β-estradiol (E2) level in the male fetal brain upon Cd exposure. Correspondingly, the expression of synapse-associated proteins including brain-derived neurotrophic factor (BDNF), post-synaptic density protein 95 (PSD95) and synapsin-1 were downregulated, which were reversed when supplemented with E2 hormone during gestation. Further observation showed placental estrogen synthesis inhibition and general control non-derepressible 2 (GCN2) signaling activation upon Cd exposure, whereas placental estrogen synthesis could be restored through inhibiting GCN2 activity. Based on ovariectomy (OVX) of pregnant mice, we confirmed that Cd exposure reduced E2 level in fetal brain via inhibiting placenta-derived estrogen synthesis. The aforementioned Cd-induced fetal brain injury and cognitive impairment in adult offspring were significantly alleviated when pregnant dams were supplemented with anti-stress agent N-Acetyl-l-cysteine. In summary, Cd disrupted placenta-derived estrogen synthesis via activating GCN2 signaling, and thereby caused cognitive impairment in adult offspring mice. Our findings suggest that placenta-derived estrogen may be an effect marker of environmental toxicants-evoked cognitive dysfunction in adult offspring and suggest that environmental toxicants may affect the fetal brain development via placenta-fetal-brain axis.
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Affiliation(s)
- Wei-Bo Liu
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, China
| | - Hua-Long Zhu
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, China
| | - Yong-Wei Xiong
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, China
| | - Jia Lv
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Yi-Chao Huang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China
| | - Hua Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, China; Key Laboratory of Population Health Across Life Cycle, Anhui Medical University, Ministry of Education of the People's Republic of China, China.
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Qu J, Wang Q, Sun X, Li Y. The environment and female reproduction: Potential mechanism of cadmium poisoning to the growth and development of ovarian follicle. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114029. [PMID: 36055045 DOI: 10.1016/j.ecoenv.2022.114029] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Cadmium (Cd) is ubiquitous in our environment and can easily bioaccumulate into the organism after passage through the respiratory and digestive tracts. Long-term exposure to Cd can result in the significant bioaccumulation in organism because of its long biological high-life (10-30 years), which exerts irreversible damages on the health of animals and humans. Although there are increased evidence of impeding the normal function of female reproduction resulted from Cd exposure, the mechanism of the negative action of Cd on the growth and development of ovarian follicle remains enigmatic. Thus, the purpose of the presented study is to summarize available literature which describing Cd-related toxicity involved in the adverse effects on the growth and development of the ovarian follicle. In conclusion, it is suggested that Cd causes damage to the folliculogenesis of mammalians, which results in the decline in the number and quality of ovulated oocytes and the failure in the fertilization. The mechanism behinds that may be linked to the interference to the production of reproductive hormones and the augment of reactive oxygen species (ROS). Furthermore, the enhanced ROS, in turn, impairs various molecules including proteins, lipids and DNA, as well as the balance of the antioxidant defense system, mitochondrial homeostasis, endoplasmic reticulum, autophagy and epigenetic modification. This review is expected to elaborate the toxic mechanism of Cd exposure to the growth and development of ovarian follicles and provide essential remediation strategies to alleviate the damage of Cd to female reproductive health.
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Affiliation(s)
- Jingwen Qu
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China; Department of Animal Science, University of Vermont, Burlington, VT 05405, USA.
| | - Qiang Wang
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Xiaomei Sun
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Yongjun Li
- Key Laboratory for Animal Genetics & Molecular Breeding of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
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Satarug S, Gobe GC, Vesey DA. Multiple Targets of Toxicity in Environmental Exposure to Low-Dose Cadmium. TOXICS 2022; 10:toxics10080472. [PMID: 36006151 PMCID: PMC9412446 DOI: 10.3390/toxics10080472] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/06/2022] [Accepted: 08/12/2022] [Indexed: 05/06/2023]
Abstract
Dietary assessment reports and population surveillance programs show that chronic exposure to low levels of environmental cadmium (Cd) is inevitable for most people, and adversely impacts the health of children and adults. Based on a risk assessment model that considers an increase in the excretion of β2-microglobulin (β2M) above 300 μg/g creatinine to be the "critical" toxicity endpoint, the tolerable intake level of Cd was set at 0.83 µg/kg body weight/day, and a urinary Cd excretion rate of 5.24 µg/g creatinine was considered to be the toxicity threshold level. The aim of this review is to draw attention to the many other toxicity endpoints that are both clinically relevant and more appropriate to derive Cd exposure limits than a β2M endpoint. In the present review, we focus on a reduction in the glomerular filtration rate and diminished fecundity because chronic exposure to low-dose Cd, reflected by its excretion levels as low as 0.5 µg/g creatinine, have been associated with dose-dependent increases in risk of these pathological symptoms. Some protective effects of the nutritionally essential elements selenium and zinc are highlighted. Cd-induced mitochondrial dysfunction is discussed as a potential mechanism underlying gonadal toxicities and infertility.
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Affiliation(s)
- Soisungwan Satarug
- Kidney Disease Research Collaborative, Translational Research Institute, Brisbane 4102, Australia
- Correspondence:
| | - Glenda C. Gobe
- Kidney Disease Research Collaborative, Translational Research Institute, Brisbane 4102, Australia
- School of Biomedical Sciences, The University of Queensland, Brisbane 4072, Australia
- NHMRC Centre of Research Excellence for CKD QLD, UQ Health Sciences, Royal Brisbane and Women’s Hospital, Brisbane 4029, Australia
| | - David A. Vesey
- Kidney Disease Research Collaborative, Translational Research Institute, Brisbane 4102, Australia
- Department of Nephrology, Princess Alexandra Hospital, Brisbane 4075, Australia
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Kohil A, Chouliaras S, Alabduljabbar S, Lakshmanan AP, Ahmed SH, Awwad J, Terranegra A. Female infertility and diet, is there a role for a personalized nutritional approach in assisted reproductive technologies? A Narrative Review. Front Nutr 2022; 9:927972. [PMID: 35938101 PMCID: PMC9353397 DOI: 10.3389/fnut.2022.927972] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/27/2022] [Indexed: 11/23/2022] Open
Abstract
Female infertility is a major public health concern and a global challenge. It is a disorder of the reproductive system, defined as the inability to achieve a clinical pregnancy. Nutrition and other environmental factors are found to impact reproductive health in women as well as the outcome of assisted reproductive technologies (ART). Dietary factors, such as polyunsaturated fatty acids (PUFA), fiber as well as the intake of Mediterranean diet appear to exert beneficial effects on female reproductive outcomes. The exact mechanisms associating diet to female fertility are yet to be identified, although genomic, epigenomic, and microbial pathways may be implicated. This review aims to summarize the current knowledge on the impact of dietary components on female reproduction and ART outcomes, and to discuss the relevant interplay of diet with genome, epigenome and microbial composition.
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Affiliation(s)
- Amira Kohil
- Research Department, Sidra Medicine, Doha, Qatar
| | | | | | | | | | - Johnny Awwad
- Reproductive Medicine Unit, Sidra Medicine, Doha, Qatar
| | - Annalisa Terranegra
- Research Department, Sidra Medicine, Doha, Qatar
- *Correspondence: Annalisa Terranegra
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Xiong Y, Jin E, Yin Q, Che C, He S. Boron Attenuates Heat Stress-Induced Apoptosis by Inhibiting Endoplasmic Reticulum Stress in Mouse Granulosa Cells. Biol Trace Elem Res 2021; 199:611-621. [PMID: 32385716 DOI: 10.1007/s12011-020-02180-1] [Citation(s) in RCA: 6] [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: 03/23/2020] [Accepted: 04/28/2020] [Indexed: 01/25/2023]
Abstract
Heat stress-induced apoptosis in granulosa cells is mediated by multiple apoptotic signaling pathways, including endoplasmic reticulum (ER) stress. Boron is a naturally occurring trace element with several cytoprotective properties. Nonetheless, the molecular mechanisms involved in the protective functions of boron in granulosa cells undergoing apoptosis caused by heat stress (HS) remain unclear. In this study, we investigated the role of boric acid, a predominant chemical form of boron, in HS-induced apoptotic damage in mouse granulosa cells (mGCs) and explored the underlying mechanisms. We found that HS treatment suppressed cell viability; increased the apoptotic rate of cells; potentiated the activity of caspase-3, a key player in the caspase-mediated apoptotic signaling pathway; and activated ER stress markers, including glucose-regulated protein 78 (GRP78) and CCAAT/enhancer-binding protein (C/EBP) homologous protein (CHOP) in mGCs. However, boric acid treatment effectively alleviated the effects of both HS-induced and thapsigargin (an ER stress agonist)-induced apoptosis, such as the enhanced activity of caspase-3 and increase in GRP78 and CHOP expression. Moreover, treatment with 4-phenylbutyrate (4-PBA), an ER stress antagonist, significantly attenuated these HS-induced adverse effects in mGCs. In addition, boric acid supplementation in the culture medium significantly restored the decreased estradiol levels in heat-treated mGCs. The administration of boric acid to female mice previously exposed to hyperthermal conditions effectively restored the levels of serum estradiol in vivo. Collectively, these findings suggest that HS induces apoptosis in mGCs via ER stress pathways and that boron has a protective effect against these adverse effects. This study provides novel insights into the benefits of using boron against heat-induced apoptosis.
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Affiliation(s)
- Yongjie Xiong
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
- Key Laboratory of the Quality and Safety Control for Pork of the Ministry of Agriculture, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Erhui Jin
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
- Key Laboratory of the Quality and Safety Control for Pork of the Ministry of Agriculture, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Qirun Yin
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
- Key Laboratory of the Quality and Safety Control for Pork of the Ministry of Agriculture, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Chuanyan Che
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
- Key Laboratory of the Quality and Safety Control for Pork of the Ministry of Agriculture, Anhui Science and Technology University, Fengyang, 233100, Anhui, China
| | - Shaojun He
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, Anhui, China.
- Key Laboratory of the Quality and Safety Control for Pork of the Ministry of Agriculture, Anhui Science and Technology University, Fengyang, 233100, Anhui, China.
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12
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Peng Y, Yang X, Luo X, Liu C, Cao X, Wang H, Guo L. Novel mechanisms underlying anti-polycystic ovary like syndrome effects of electroacupuncture in rats: suppressing SREBP1 to mitigate insulin resistance, mitochondrial dysfunction and oxidative stress. Biol Res 2020; 53:50. [PMID: 33109277 PMCID: PMC7590702 DOI: 10.1186/s40659-020-00317-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 10/15/2020] [Indexed: 12/23/2022] Open
Abstract
Background Acupuncture, a therapy of traditional Chinese medicine, is confirmed to exert the therapeutic action on polycystic ovary syndrome (PCOS). However, the detailed therapeutic mechanisms of acupuncture in PCOS remain ambiguous. In this study, we further investigated whether electroacupuncture (EA) alleviated PCOS-like symptoms in rats via regulating a metabolic regulator, sterol regulatory element binding protein-1 (SREBP1). Methods The PCOS-like rat model was built by hypodermic injection with dehydroepiandrosterone (DHEA). The rats were subjected to EA intervention (ST29 and SP6 acupuncture points) for 5 weeks. Primary granulosa cells were isolated from control and PCOS-like rats for evaluating insulin resistance, mitochondrial dysfunction and oxidative stress in vitro. Results The expression of SREBP1 was increased in PCOS-like rats, which was suppressed by EA treatment. In addition, lentivirus-mediated overexpression of SREBP1 restrained EA treatment-induced improvement in pathological changes, serum hormone levels and insulin resistance in rats. In addition, overexpression of SREBP1 repressed insulin-stimulated phosphorylation of insulin receptor β (IR) and AKT in primary granulosa cells. Moreover, upregulation of SREBP1 further exacerbated mitochondrial dysfunction and oxidative stress in granulosa cells isolated from PCOS-like rats. Mechanically, EA treatment suppressed SREBP1 expression through inducing the activation of AMP-activated protein kinase (AMPK) signaling pathway in PCOS-like rats. Conclusion EA intervention alleviated PCOS-like symptoms in rats via improving IR, mitochondrial dysfunction and oxidative stress through regulating SREBP1, a lipid metabolism regulator. Our findings illuminate the novel protective mechanisms of EA in the treatment of PCOS.
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Affiliation(s)
- Yan Peng
- Disease Prevention Center, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
| | - Xinming Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
| | - Xi Luo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
| | - Chunhong Liu
- College of Basic Medicine Sciences, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
| | - Xia Cao
- Document Retrival Center, Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China
| | - Hongyan Wang
- Department of Gynecological Oncology, Cancer Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China
| | - Liyuan Guo
- Department of Gynecological Oncology, Cancer Hospital of Harbin Medical University, Harbin, 150081, People's Republic of China.
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Mvondo MA, Mzemdem Tsoplfack FI, Awounfack CF, Njamen D. The leaf aqueous extract of Myrianthus arboreus P. Beauv. (Cecropiaceae) improved letrozole-induced polycystic ovarian syndrome associated conditions and infertility in female Wistar rats. BMC Complement Med Ther 2020; 20:275. [PMID: 32917200 PMCID: PMC7488433 DOI: 10.1186/s12906-020-03070-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 09/01/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Myrianthus arboreus P. Beauv. (Cecropiaceae) is a medicinal plant used to treat female infertility. The aqueous extract of M. arboreus leaves was found to improve the fertility of healthy female Wistar rats. In the present study, we proposed evaluating the effects of such an extract on an animal model of infertility caused by polycystic ovary syndrome (PCOS), in order to bring scientific evidence to the curative action of this plant against female infertility. METHODS Following a 21-day administration (gavage) of letrozole (1 mg/kg), animals with PCOS, indicated by overweight and an estrous cycle blocked in the diestrus phase, were co-treated with letrozole (1 mg/kg) and the aqueous extract of M. arboreus leaves at doses of 20, 110 and 200 mg/kg. The positive control received clomiphene citrate (1 mg/kg) and metformin (200 mg/kg). The negative control received distilled water. Each group of animals was made up of 10 female rats. Vaginal smear was examined 7 days before and during co-treatments. Co-treatments were orally administered for 30 consecutive days and 5 animals per group were sacrificed thereafter for biochemical and histological analyses. The 5 remaining animals in each group were crossbred with males of proven fertility for 5 consecutive days. The daily examination of vaginal smears allowed evaluating fertility index. Following parturition, gestation rate was calculated. RESULTS The aqueous extract of M. arboreus leaves reversed letrozole effects by decreasing body weight, abdominal fat accumulation, and serum levels of LH and testosterone (p < 0.001). Ovarian dynamic was improved and the number of tertiary, Graafian follicles (p < 0.001) and corpus luteum increased while that of cystic (p < 0.001) and atretic follicles (p < 0.01) decreased. These effects were associated with increased serum levels of estradiol, decreased ovarian oxidative stress, the resumption of the estrous cycle, the hypertrophy of uterine epithelial cells and increased fertility index and gestation rate. CONCLUSIONS These results justify at least in part, the traditional use of M. arboreus against female infertility and suggest that this plant could be a promising alternative treatment to improve symptoms associated with different PCOS phenotypes.
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Affiliation(s)
- Marie Alfrede Mvondo
- Research Unit of Animal Physiology and Phytopharmacology, University of Dschang, P.O. Box 67, Dschang, Cameroon.
| | | | | | - Dieudonné Njamen
- Laboratory of Animal Physiology, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon
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14
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Santoro M, De Amicis F, Aquila S, Bonofiglio D. Peroxisome proliferator-activated receptor gamma expression along the male genital system and its role in male fertility. Hum Reprod 2020; 35:2072-2085. [PMID: 32766764 DOI: 10.1093/humrep/deaa153] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ) acts as a ligand activated transcription factor and regulates processes, such as energy homeostasis, cell proliferation and differentiation. PPARγ binds to DNA as a heterodimer with retinoid X receptor and it is activated by polyunsaturated fatty acids and fatty acid derivatives, such as prostaglandins. In addition, the insulin-sensitizing thiazolidinediones, such as rosiglitazone, are potent and specific activators of PPARγ. PPARγ is present along the hypothalamic-pituitary-testis axis and in the testis, where low levels in Leydig cells and higher levels in Sertoli cells as well as in germ cells have been found. High amounts of PPARγ were reported in the normal epididymis and in the prostate, but the receptor was almost undetectable in the seminal vesicles. Interestingly, in the human and in pig, PPARγ protein is highly expressed in ejaculated spermatozoa, suggesting a possible role of PPARγ signaling in the regulation of sperm biology. This implies that both natural and synthetic PPARγ ligands may act directly on sperm improving its performance. Given the close link between energy balance and reproduction, activation of PPARγ may have promising metabolic implications in male reproductive functions. In this review, we first describe PPARγ expression in different compartments of the male reproductive axis. Subsequently, we discuss the role of PPARγ in both physiological and several pathological conditions related to the male fertility.
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Affiliation(s)
- Marta Santoro
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy.,Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy
| | - Francesca De Amicis
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy
| | - Saveria Aquila
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy.,Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy
| | - Daniela Bonofiglio
- Department of Pharmacy, Health and Nutritional Sciences (Department of Excellence, Italian Law 232/2016), Arcavacata di Rende, Cosenza 87036, Italy.,Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza 87036, Italy
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15
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Buha A, Đukić-Ćosić D, Ćurčić M, Bulat Z, Antonijević B, Moulis JM, Goumenou M, Wallace D. Emerging Links between Cadmium Exposure and Insulin Resistance: Human, Animal, and Cell Study Data. TOXICS 2020; 8:E63. [PMID: 32867022 PMCID: PMC7560347 DOI: 10.3390/toxics8030063] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 12/13/2022]
Abstract
Recent research has helped clarify the role of cadmium (Cd) in various pathological states. We have demonstrated Cd involvement in pancreatic cancer, as well as the bioaccumulation of Cd in the pancreas. Bioaccumulation and increased toxicity suggest that Cd may also be involved in other pancreas-mediated diseases, like diabetes. Cd falls into the category of "hyperglycemic" metals, i.e., metals that increase blood glucose levels, which could be due to increased gluconeogenesis, damage to β-cells leading to reduced insulin production, or insulin resistance at target tissue resulting in a lack of glucose uptake. This review addresses the current evidence for the role of Cd, leading to insulin resistance from human, animal, and in vitro studies. Available data have shown that Cd may affect normal insulin function through multiple pathways. There is evidence that Cd exposure results in the perturbation of the enzymes and modulatory proteins involved in insulin signal transduction at the target tissue and mutations of the insulin receptor. Cd, through well-described mechanisms of oxidative stress, inflammation, and mitochondrial damage, may also alter insulin production in β-cells. More work is necessary to elucidate the mechanisms associated with Cd-mediated insulin resistance.
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Affiliation(s)
- Aleksandra Buha
- Department of Toxicology “Akademik Danilo Soldatović”, University of Belgrade-Faculty of Pharmacy, 11000 Belgrade, Serbia; (D.Đ.-Ć.); (M.Ć.); (Z.B.); (B.A.)
| | - Danijela Đukić-Ćosić
- Department of Toxicology “Akademik Danilo Soldatović”, University of Belgrade-Faculty of Pharmacy, 11000 Belgrade, Serbia; (D.Đ.-Ć.); (M.Ć.); (Z.B.); (B.A.)
| | - Marijana Ćurčić
- Department of Toxicology “Akademik Danilo Soldatović”, University of Belgrade-Faculty of Pharmacy, 11000 Belgrade, Serbia; (D.Đ.-Ć.); (M.Ć.); (Z.B.); (B.A.)
| | - Zorica Bulat
- Department of Toxicology “Akademik Danilo Soldatović”, University of Belgrade-Faculty of Pharmacy, 11000 Belgrade, Serbia; (D.Đ.-Ć.); (M.Ć.); (Z.B.); (B.A.)
| | - Biljana Antonijević
- Department of Toxicology “Akademik Danilo Soldatović”, University of Belgrade-Faculty of Pharmacy, 11000 Belgrade, Serbia; (D.Đ.-Ć.); (M.Ć.); (Z.B.); (B.A.)
| | - Jean-Marc Moulis
- Alternative Energies and Atomic Energy Commission—Fundamental Research Division—Interdisciplinary Research Institute of Grenoble (CEA-IRIG), University of Grenoble Alpes, F-38000 Grenoble, France;
- Laboratory of Fundamental and Applied Bioenergetics (LBFA), University of Grenoble Alpes, Inserm U1055, F-38000 Grenoble, France
| | - Marina Goumenou
- Centre of Toxicology and Forensic Sciences, Medicine School, University of Crete, 70013 Heraklion, Greece;
- General Chemical State Laboratory of Greek Republic, 71202 Heraklion, Greece
| | - David Wallace
- Department of Pharmacology & Toxicology, Oklahoma State University Center for Health Sciences, Tulsa, OK 74107, USA;
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16
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Zhong P, Liu J, Li H, Lin S, Zeng L, Luo L, Wu M, Zhang W. MicroRNA-204-5p regulates apoptosis by targeting Bcl2 in rat ovarian granulosa cells exposed to cadmium†. Biol Reprod 2020; 103:608-619. [PMID: 32500147 DOI: 10.1093/biolre/ioaa091] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/27/2020] [Accepted: 06/01/2020] [Indexed: 02/06/2023] Open
Abstract
This study aimed to investigate whether cadmium (Cd) cytotoxicity in rat ovarian granulosa cells (OGCs) is mediated through apoptosis or autophagy and to determine the role of microRNAs (miRNAs) in Cd cytotoxicity. To test this hypothesis, rat OGCs were exposed to 0, 10, and 20 μM CdCl2 in vitro. As the Cd concentration increased, OGC apoptosis increased. In addition, Cd promoted apoptosis by decreasing the mRNA and protein expression levels of inhibition of B-cell lymphoma 2 (Bcl2). However, under our experimental conditions, no autophagic changes in rat OGCs were observed, and the mRNA and protein expression levels of the autophagic markers microtubule-associated protein 1 light chain 3 alpha (Map1lc3b) and Beclin1 (Becn1) were not changed. Microarray chip analysis, miRNA screening, and bioinformatics approaches were used to further explore the roles of apoptosis regulation-related miRNAs. In total, 19 miRNAs putatively related to Cd-induced apoptosis in rat OGCs were identified. Notably, miR-204-5p, which may target Bcl2, was identified. Then, rat OGCs were cultured in vitro and used to construct the miR-204-5p-knockdown cell line LV2-short hairpin RNA (shRNA). LV2-shRNA cells were exposed to 20 μM Cd for 12 h, and the mRNA and protein expression levels of Bcl2 were increased. Our findings suggest that Cd is cytotoxic to rat OGCs, and mitochondrial apoptosis rather than autophagy mediates Cd-induced damage to OGCs. Cd also affects apoptosis-related miRNAs, and the underlying apoptotic mechanism may involve the Bcl2 gene.
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Affiliation(s)
- Ping Zhong
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Jin Liu
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Hong Li
- Department of Health Management, Fujian Health College, Fuzhou, Fujian, China
| | - Senbin Lin
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Lingfeng Zeng
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Lingfeng Luo
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Minxia Wu
- Department of Pathology, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian, China
| | - Wenchang Zhang
- Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Fujian Provincial Key Laboratory of Environment Factors and Cancer, Key Laboratory of Environment and Health, The School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
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17
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Soleimani A, Fard NZ, Talaei-Khozani T, Bahmanpour S. Epidermal growth factor and three-dimensional scaffolds provide conducive environment for differentiation of mouse embryonic stem cells into oocyte-like cells. Cell Biol Int 2020; 44:1850-1859. [PMID: 32437076 DOI: 10.1002/cbin.11391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 04/07/2020] [Accepted: 05/18/2020] [Indexed: 11/09/2022]
Abstract
Three-dimensional (3D) culture provides a biomimicry of the naive microenvironment that can support cell proliferation, differentiation, and regeneration. Some growth factors, such as epidermal growth factor (EGF), facilitate normal meiosis during oocyte maturation in vivo. In this study, a scaffold-based 3D coculture system using purified alginate was applied to induce oocyte differentiation from mouse embryonic stem cells (mESCs). mESCs were induced to differentiate into oocyte-like cells using embryoid body protocol in the two-dimensional or 3D microenvironment in vitro. To increase the efficiency of the oocyte-like cell differentiation from mESCs, we employed a coculture system using ovarian granulosa cells in the presence or absence of epidermal growth factor (+EGF or -EGF) for 14 days and then the cells were assessed for germ cell differentiation, meiotic progression, and oocyte maturation markers. The cultures exposed to EGF in the alginate-based 3D microenvironment showed the highest level of premeiotic (Oct4 and Mvh), meiotic (Scp1, Scp3, Stra8, and Rec8), and oocyte maturation (Gdf9, Cx37, and Zp2) marker genes (p < .05) in comparison to other groups. According to the gene-expression patterns, we can conclude that alginate-based 3D coculture system provided a highly efficient protocol for oocyte-like cell differentiation from mESCs. The data showed that this culture system along with EGF improved the rate of in vitro oocyte-like cell differentiation.
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Affiliation(s)
- Azam Soleimani
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nehleh Zarei Fard
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Tahereh Talaei-Khozani
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soghra Bahmanpour
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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18
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Selenium Attenuates Chronic Heat Stress-Induced Apoptosis via the Inhibition of Endoplasmic Reticulum Stress in Mouse Granulosa Cells. Molecules 2020; 25:molecules25030557. [PMID: 32012916 PMCID: PMC7037519 DOI: 10.3390/molecules25030557] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 02/06/2023] Open
Abstract
Heat stress induces apoptosis in various cells. Selenium, an essential micronutrient, has beneficial effects in maintaining the cellular physiological functions. However, its potential protective action against chronic heat stress (CHS)-induced apoptosis in granulosa cells and the related molecular mechanisms are not fully elucidated. In this study, we investigated the roles of selenium in CHS-induced apoptosis in mouse granulosa cells and explored its underlying mechanism. The heat treatment for 6–48 h induced apoptosis, potentiated caspase 3 activity, increased the expression levels of apoptosis-related gene BAX and ER stress markers, glucose-regulated protein 78 (GRP78), and CCAAT/enhancer binding protein homologous protein (CHOP) in mouse granulosa cells. The treatment with ER stress inhibitor 4-PBA significantly attenuated the adverse effects caused by CHS. Selenium treatment significantly attenuated the CHS- or thapsigargin (Tg, an ER stress activator)-induced apoptosis, potentiation of caspase 3 activity, and the increased protein expression levels of BAX, GRP78, and CHOP. Additionally, treatment of the cells with 5 ng/mL selenium significantly ameliorated the levels of estradiol, which were decreased in response to heat exposure. Consistently, administering selenium supplement alleviated the hyperthermia-caused reduction in the serum estradiol levels in vivo. Together, our findings indicate that selenium has protective effects on CHS-induced apoptosis via inhibition of the ER stress pathway. The current study provides new insights in understanding the role of selenium during the process of heat-induced cell apoptosis.
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Prasad SK, Bose A, Bhattacharjee A, Banerjee O, Singh S, Mukherjee S, Pal S. Radioprotective effect of ethanolic extract of Alocasia indica on γ-irradiation-induced reproductive alterations in ovary and uterus. Int J Radiat Biol 2019; 95:1529-1542. [DOI: 10.1080/09553002.2019.1642545] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Ananya Bose
- Department of Physiology, Serampore College, Hooghly, India
| | | | - Oly Banerjee
- Department of Physiology, Serampore College, Hooghly, India
| | | | | | - Swagata Pal
- Department of Physiology, Raja Peary Mohan College, Hooghly, India
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20
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Perturbed ovarian and uterine glucocorticoid receptor signaling accompanies the balanced regulation of mitochondrial function and NFκB-mediated inflammation under conditions of hyperandrogenism and insulin resistance. Life Sci 2019; 232:116681. [PMID: 31344428 DOI: 10.1016/j.lfs.2019.116681] [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: 05/02/2019] [Revised: 07/16/2019] [Accepted: 07/21/2019] [Indexed: 11/23/2022]
Abstract
AIM This study aimed to determine whether glucocorticoid receptor (GR) signaling, mitochondrial function, and local inflammation in the ovary and uterus are intrinsically different in rats with hyperandrogenism and insulin resistance compared to controls. MAIN METHODS Female Sprague Dawley rats were exposed to daily injections of human chorionic gonadotropin and/or insulin. KEY FINDINGS In both the ovary and the uterus, decreased expression of the two GR isoforms was concurrent with increased expression of Fkbp51 but not Fkbp52 mRNA in hCG + insulin-treated rats. However, these rats exhibited contrasting regulation of Hsd11b1 and Hsd11b2 mRNAs in the two tissues. Further, the expression of several oxidative phosphorylation-related proteins decreased in the ovary and uterus following hCG and insulin stimulation, in contrast to increased expression of many genes involved in mitochondrial function and homeostasis. Additionally, hCG + insulin-treated rats showed increased expression of ovarian and uterine NFκB signaling proteins and Tnfaip3 mRNA. The mRNA expression of Il1b, Il6, and Mmp2 was decreased in both tissues, while the mRNA expression of Tnfa, Ccl2, Ccl5, and Mmp3 was increased in the uterus. Ovaries and uteri from animals co-treated with hCG and insulin showed increased collagen deposition compared to controls. SIGNIFICANCE Our observations suggest that hyperandrogenism and insulin resistance disrupt ovarian and uterine GR activation and trigger compensatory or adaptive effects for mitochondrial homeostasis, allowing tissue-level maintenance of mitochondrial function in order to limit ovarian and uterine dysfunction. Our study also suggests that hyperandrogenism and insulin resistance activate NFκB signaling resulting in aberrant regulation of inflammation-related gene expression.
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21
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Belani M, Deo A, Shah P, Banker M, Singal P, Gupta S. Differential insulin and steroidogenic signaling in insulin resistant and non-insulin resistant human luteinized granulosa cells-A study in PCOS patients. J Steroid Biochem Mol Biol 2018; 178:283-292. [PMID: 29339197 DOI: 10.1016/j.jsbmb.2018.01.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 01/05/2018] [Accepted: 01/11/2018] [Indexed: 12/15/2022]
Abstract
Insulin resistance (IR) is one of the significant aberrations in polycystic ovarian syndrome (PCOS), however is only observed in 70%-80% of obese PCOS and 20%-25% of lean PCOS. Hyperinsulinemia accompanies PCOS-IR along with hyperandrogenemia against normal insulin and androgen levels in PCOS-non insulin resistance (NIR). This could possibly be due to defects in the downstream signaling pathways. The study thus aims to unravel insulin and steroidogenic signaling pathways in luteinized granulosa cells isolated from PCOS-IR and NIR vs matched controls. Luteinized granulosa cells from 30 controls and 39 PCOS were classified for IR based on a novel method of down regulation of protein expression of insulin receptor-β (INSR- β) as shown in our previous paper. We evaluated expression of molecules involved in insulin, steroidogenic signaling and lipid metabolism in luteinized granulosa cells followed by analysis of estradiol, progesterone and testosterone in follicular fluid. Protein expression of INSR- β, pIRS (ser 307), PI(3)K, PKC-ζ, pAkt, ERK1/2, pP38MAPK and gene expression of IGF showed differential expression in the two groups. Increased protein expression of PPAR-γ was accompanied by up regulation in SREBP1c, FAS, CPT-1 and ACC-1 genes in PCOS-IR group. Expression of StAR, CYP19A1, 17 β- HSD and 3 β- HSD demonstrated significant decrease along with increase in CYP11A1, FSH-R and LH-R in both the groups. Follicular fluid testosterone increased and progesterone decreased in PCOS-IR group. This study shows how candidate molecules that were differentially expressed, aid in designing targeted therapy against the two phenotypes of PCOS.
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Affiliation(s)
- Muskaan Belani
- Department of Biochemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Abhilash Deo
- Department of Biochemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Preeti Shah
- Nova IVI Fertility, Behind Xavier's Ladies Hostel, 108, Swastik Society Rd, Navrangpura, Ahmedabad, 390009, Gujarat, India
| | - Manish Banker
- Nova IVI Fertility, Behind Xavier's Ladies Hostel, 108, Swastik Society Rd, Navrangpura, Ahmedabad, 390009, Gujarat, India
| | - Pawan Singal
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Department of Physiology and Pathophysiology, Winnipeg MB, Canada
| | - Sarita Gupta
- Department of Biochemistry, Faculty of Science, The M. S. University of Baroda, Vadodara, 390 002, Gujarat, India.
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Chaparro-Ortega A, Betancourt M, Rosas P, Vázquez-Cuevas FG, Chavira R, Bonilla E, Casas E, Ducolomb Y. Endocrine disruptor effect of perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) on porcine ovarian cell steroidogenesis. Toxicol In Vitro 2018; 46:86-93. [DOI: 10.1016/j.tiv.2017.09.030] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 09/29/2017] [Accepted: 09/30/2017] [Indexed: 11/17/2022]
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Zareifard N, Soleimani A, Talaei-Khozani T, Bahmanpour S. Improved BALB/c mice granulosa cell functions using purified alginate scaffold. IRANIAN JOURNAL OF VETERINARY RESEARCH 2018; 19:182-188. [PMID: 30349564 PMCID: PMC6184026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 04/03/2018] [Accepted: 05/05/2018] [Indexed: 06/08/2023]
Abstract
Alginate, a non-toxic polysaccharide isolated from brown algae, is a widely used 3-dimensional (3D) porous scaffold for the granulosa cell and follicle encapsulation. However, impurities in commercial alginate can lead to alginate biocompatibility reduction. The aim of this study was to evaluate in vitro behavior of the granulosa cells seeded on the purified alginate in varying concentrations compared with matched non-purified ones. We produced a purified alginate using a simple and efficient method. Then, the granulosa cells from mice were isolated and seeded in various concentrations of (0.5%, 1% weight/volume) purified and non-purified alginate. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay was used on the 3rd, 5th and the 8th days of culture as an index of cell viability and proliferation. Furthermore, the secreted estradiol, progesterone and alkaline phosphatase enzyme (ALP) were measured in the granulosa cells culture media using radioimmunoassay kits. The cells cultured on purified and low concentration alginate showed a higher proliferation rate, sex hormone production and ALP activity. The results confirmed the impact of the alginate hydrogel properties on proliferative rate and function of granulosa cells in a 3D culture system.
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Affiliation(s)
- N. Zareifard
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - A. Soleimani
- Ph.D. Student in Anatomy, Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - T. Talaei-Khozani
- Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S. Bahmanpour
- Ph.D. Student in Anatomy, Stem Cell Research Laboratory, Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Xiong Y, Chen H, Lin P, Wang A, Wang L, Jin Y. ATF6 knockdown decreases apoptosis, arrests the S phase of the cell cycle, and increases steroid hormone production in mouse granulosa cells. Am J Physiol Cell Physiol 2017; 312:C341-C353. [PMID: 28100484 DOI: 10.1152/ajpcell.00222.2016] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/01/2016] [Accepted: 11/23/2016] [Indexed: 12/18/2022]
Abstract
Activating transcription factor 6 (ATF6), a sensor protein located in the endoplasmic reticulum (ER) membrane, is an important factor in the ER stress signaling pathway. ER stress is known to be involved in folliculogenesis, follicular growth, and ovulation; however, the physiological function of ATF6 in mouse granulosa cells remains largely unknown. The aim of this study was to assess the role of ATF6 in mouse granulosa cells with respect to apoptosis, the cell cycle, and steroid hormone production, as well as several key genes related to follicular development, via RNA interference, immunohistochemical staining, real-time quantitative PCR, Western blotting, flow cytometry, terminal deoxynucleotidyltransferase-mediated deoxy-UTP nick end labeling (TUNEL) assay, and ELISA. Immunohistochemical staining revealed that ATF6 was extensively distributed in the granulosa cells of various ovarian follicles and oocytes in adult female mice. FSH or LH treatment significantly increased ATF6 protein levels in mouse granulosa cells. In the meantime, a recombinant plasmid was used to deplete ATF6 successfully using short hairpin RNA-mediated interference technology, which was verified at both the mRNA and protein levels. Flow cytometry and TUNEL assay analysis indicated that ATF6 depletion decreased apoptosis and arrested the S phase of the cell cycle in mouse granulosa cells. Consistent with these results, p53, caspase-3, B cell lymphoma 2 (Bcl-2)-associated X protein, CCAAT-enhancer-binding protein homologous protein, cyclin A1, cyclin B1, and cyclin D2 mRNA expression decreased, whereas Bcl-2 and glucose-regulated protein 78 kDa mRNA expression increased. Interestingly, ATF6 knockdown obviously increased progesterone and estradiol production in mouse granulosa cells. Cytochrome P450 1b1 (Cyp1b1) mRNA levels were downregulated, whereas Cyp11a1, steroidogenic acute regulatory, and Cyp19a1 mRNA levels were upregulated, in keeping with the changes in steroid hormones. Furthermore, ATF6 disruption remarkably increased insulin-like growth factor binding protein4 (Igfbp4) expression and decreased hyaluronan synthase 2 (Has2), prostaglandin-endoperoxide synthase 2 (Ptgs2), and prostaglandin F receptor (Ptgfr) expression in mouse granulosa cells, which are proteins crucial for follicular development. But, after treating with tunicamycin, the levels of Has2, Ptgs2, and Ptgfr increased relatively, whereas Igfbp4 expression decreased. Collectively, these results imply that ATF6, as a key player in ER stress signaling, may regulate apoptosis, the cell cycle, steroid hormone synthesis, and other modulators related to folliculogenesis in mouse granulosa cells, which may indirectly be involved in the development, ovulation, and atresia of ovarian follicles by affecting the physiological function of granulosa cells. The present study extends our understanding and provides new insights into the physiological significance of ATF6, a key signal transducer of ER stress, in ovarian granulosa cells.
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Affiliation(s)
- Yongjie Xiong
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Huatao Chen
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Pengfei Lin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Aihua Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Lei Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and.,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yaping Jin
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China; and .,College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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Belani M, Shah P, Banker M, Gupta S. Dual effect of insulin resistance and cadmium on human granulosa cells - In vitro study. Toxicol Appl Pharmacol 2016; 313:119-130. [DOI: 10.1016/j.taap.2016.10.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 10/10/2016] [Accepted: 10/24/2016] [Indexed: 12/29/2022]
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26
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Dexamethasone Alters the Appetite Regulation via Induction of Hypothalamic Insulin Resistance in Rat Brain. Mol Neurobiol 2016; 54:7483-7496. [DOI: 10.1007/s12035-016-0251-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 10/23/2016] [Indexed: 01/08/2023]
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Hao M, Yuan F, Jin C, Zhou Z, Cao Q, Xu L, Wang G, Huang H, Yang D, Xie M, Zhao X. Overexpression of Lnk in the Ovaries Is Involved in Insulin Resistance in Women With Polycystic Ovary Syndrome. Endocrinology 2016; 157:3709-3718. [PMID: 27459314 PMCID: PMC5045500 DOI: 10.1210/en.2016-1234] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Polycystic ovary syndrome (PCOS) progression involves abnormal insulin signaling. SH2 domain-containing adaptor protein (Lnk) may be an important regulator of the insulin signaling pathway. We investigated whether Lnk was involved in insulin resistance (IR). Thirty-seven women due to receive laparoscopic surgery from June 2011 to February 2012 were included from the gynecologic department of the Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University. Samples of polycystic and normal ovary tissues were examined by immunohistochemistry. Ovarian cell lines underwent insulin stimulation and Lnk overexpression. Expressed Lnk underwent coimmunoprecipitation tests with green fluorescent protein-labeled insulin receptor and His-tagged insulin receptor substrate 1 (IRS1), and their colocalization in HEK293T cells was examined. Ovarian tissues from PCOS patients with IR exhibited higher expression of Lnk than ovaries from normal control subjects and PCOS patients without IR; mainly in follicular granulosa cells, the follicular fluid and plasma of oocytes in secondary follicles, and atretic follicles. Lnk was coimmunoprecipitated with insulin receptor and IRS1. Lnk and insulin receptor/IRS1 locations overlapped around the nucleus. IR, protein kinase B (Akt), and ERK1/2 activities were inhibited by Lnk overexpression and inhibited further after insulin stimulation, whereas IRS1 serine activity was increased. Insulin receptor (Tyr1150/1151), Akt (Thr308), and ERK1/2 (Thr202/Tyr204) phosphorylation was decreased, whereas IRS1 (Ser307) phosphorylation was increased with Lnk overexpression. In conclusion, Lnk inhibits the phosphatidylinositol 3 kinase-AKT and MAPK-ERK signaling response to insulin. Higher expression of Lnk in PCOS suggests that Lnk probably plays a role in the development of IR.
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Affiliation(s)
- Meihua Hao
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Feng Yuan
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Chenchen Jin
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Zehong Zhou
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Qi Cao
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Ling Xu
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Guanlei Wang
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Hui Huang
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Dongzi Yang
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Meiqing Xie
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
| | - Xiaomiao Zhao
- Department of Obstetrics and Gynecology (M.H., H.H., D.Y., M.X., X.Z.), Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Pharmacology (F.Y., C.J., G.W.), Cardiac and Cerebral Vascular Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510120 China; Department of Obstetrics and Gynecology (Z.Z.), Reproductive Medical Center, Peking University Third Hospital, Haidian District, Beijing, China; Division of Hematology/Oncology (Q.C.), Cedar-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California; and Cedar-Sinai Medical Center (L.X.), University of California, Los Angeles School of Medicine, Los Angeles, California
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28
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Peroxisome Proliferator-Activated Receptors in Female Reproduction and Fertility. PPAR Res 2016; 2016:4612306. [PMID: 27559343 PMCID: PMC4983391 DOI: 10.1155/2016/4612306] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/01/2016] [Accepted: 06/19/2016] [Indexed: 12/31/2022] Open
Abstract
Reproductive functions may be altered by the exposure to a multitude of endogenous and exogenous agents, drug or environmental pollutants, which are known to affect gene transcription through the peroxisome proliferator-activated receptors (PPARs) activation. PPARs act as ligand activated transcription factors and regulate metabolic processes such as lipid and glucose metabolism, energy homeostasis, inflammation, and cell proliferation and differentiation. All PPARs isotypes are expressed along the hypothalamic-pituitary-gonadal axis and are strictly involved in reproductive functions. Since female fertility and energy metabolism are tightly interconnected, the research on female infertility points towards the exploration of potential PPARs activating/antagonizing compounds, mainly belonging to the class of thiazolidinediones (TZDs) and fibrates, as useful agents for the maintenance of metabolic homeostasis in women with ovarian dysfunctions. In the present review, we discuss the recent evidence about PPARs expression in the hypothalamic-pituitary-gonadal axis and their involvement in female reproduction. Finally, the therapeutic potential of their manipulation through several drugs is also discussed.
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29
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Chen C, Wang N, Nie X, Han B, Li Q, Chen Y, Zhai H, Zhu C, Chen Y, Xia F, Lu M, Lin D, Lu Y. Blood Cadmium Level Associates with Lower Testosterone and Sex Hormone-Binding Globulin in Chinese men: from SPECT-China Study, 2014. Biol Trace Elem Res 2016; 171:71-8. [PMID: 26434494 DOI: 10.1007/s12011-015-0526-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 09/25/2015] [Indexed: 12/16/2022]
Abstract
Cadmium is a widespread environmental pollutant. We aimed to determine whether blood cadmium level (BCL) associates with reproductive hormones in a cross-sectional study. Our data were from SPECT-China. We selected 5690 participants (2286 men and 3404 women), aged 18 years and older, among whom 1589 were postmenopausal women. BCL, blood lead level, total testosterone (TT), estradiol (E2), sex hormone-binding globulin (SHBG), luteinizing hormone, and follicle-stimulating hormone were measured. Results showed that BCL was significantly higher in men (median 1.90 μg/L) than that in women (median 1.56 μg/L). The median level of cadmium in postmenopausal women was 1.40 μg/L. In men, BCL was negatively correlated with TT (Spearmen coefficient = -0.057, P < 0.01) and SHBG (Spearmen coefficient = -0.098, P < 0.01), but in postmenopausal women, this correlation was not observed. In linear regression, after full adjustment for blood lead level, age, body mass index, residence area, economic status, and smoking, TT and SHBG were still negatively associated with BCL in men. Additionally, the association between BCL and TT levels was modified by BMI group (P for interaction = 0.041). However, from base model to fully adjusted model, BCL was not associated with TT and E2 in postmenopausal women. In conclusion, men had higher BCL than women in China, and BCL was associated with TT and SHBG in Chinese men, which may have important implications for male reproductive health. Concerted efforts are warranted to reduce adult cadmium exposure.
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Affiliation(s)
- Chi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Xiaomin Nie
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Bing Han
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Qin Li
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Hualing Zhai
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Chunfang Zhu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yingchao Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Fangzhen Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Meng Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Dongping Lin
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China.
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Chen F, Wang N, Yang D, Wen X, Mahmoud TN, Zhou D, Tang K, Lin P, Wang A, Jin Y. Herp depletion arrests the S phase of the cell cycle and increases estradiol synthesis in mouse granulosa cells. J Reprod Dev 2016; 62:159-66. [PMID: 26781490 PMCID: PMC4848573 DOI: 10.1262/jrd.2015-120] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The endoplasmic reticulum (ER) stress response has been implicated in the development, atresia and luteinization of ovarian follicles. However, there have been few reports concerning the role of Herp, an ER stress-induced protein, in follicular development. The present study aims to detect the distribution and cyclic variations of Herp during the estrous cycle and to reveal the roles of Herp in regulating the cell cycle, apoptosis and steroid hormone biosynthesis in mouse granulosa cells. In this study, immunohistochemistry staining showed that Herp expression was primarily in the granulosa cells and oocytes. Furthermore, we constructed recombinant lentiviral vectors for Herp short hairpin interfering RNA (shRNA) expression; immunofluorescence staining, real-time quantitative PCR (RT-qPCR) and western blot analysis revealed that Herp was successfully knocked down. Flow cytometry showed that knockdown of Herp arrested granulosa cells at the S phase of the cell cycle. More importantly, ELISA analysis revealed that Herp knockdown significantly upregulated the concentration of estradiol (E2) in the culture supernatants. RT-qPCR was performed to determine the regulatory mechanism of Herp knockdown in the cell cycle, and in steroid synthesis, RT-qPCR analysis revealed that Herp knockdown upregulated the mRNA expression of steroidogenic enzymes (Cyp19a1) and downregulated metabolic enzymes (Cyp1b1) and cell cycle factors (cyclin A1, cyclin B1 and cyclin D2). These results suggest that Herp may regulate the cell cycle and hormone secretions in mouse granulosa cells. The present study helps to elucidate the physiological functions of Herp as they relate to reproduction.
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Affiliation(s)
- Fenglei Chen
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Northwest A&F University, Shaanxi 712100, China
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Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine-metabolic disease which often accompany with abnormal fat distribution. Visceral adiposity has association with abnormal lipid metabolic, pro-inflammatory activity, insulin resistance (IR) and hyperandrogenism. Increased visceral adiposity raises the risk of metabolic syndrome, type 2 diabetes and cardiovascular (CV) events, and aggravates ovulatory dysfunction and hyperandrogenism in PCOS women. Visceral adiposity index (VAI), a simple surrogate maker of visceral adipose dysfunction and visceral adiposity, is a predictor of IR, and link hyperinsulinemia, hyperandrogenism and anovulation. This review aims to discuss the visceral adiposity situation in PCOS women, and suggests that VAI may be a useful predictor of clinical severity and therapeutic outcome of PCOS.
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Affiliation(s)
- Sai-Hua Zheng
- a Department of Gynecology , Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai OB/GYN Hospital, Shanghai Medical College, Fudan University , Shanghai , People's Republic of China
| | - Xue-Lian Li
- a Department of Gynecology , Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai OB/GYN Hospital, Shanghai Medical College, Fudan University , Shanghai , People's Republic of China
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32
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M'baye M, Hua G, Khan HA, Yang L. RNAi-mediated knockdown of INHBB increases apoptosis and inhibits steroidogenesis in mouse granulosa cells. J Reprod Dev 2015; 61:391-7. [PMID: 26063610 PMCID: PMC4623144 DOI: 10.1262/jrd.2014-158] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Inhibins are members of the TGFβ superfamily and act as suppressors
of follicle stimulating hormone (FSH) secretion from pituitary glands
via a negative feedback mechanism to regulate folliculogenesis. In
this study, the INHBB gene was knocked down by three
RNAi-Ready pSIREN-RetroQ-ZsGreen vector- mediated recombinant plasmids
to explore the effects of INHBB silencing on
granulosa cell (GC) cell cycle, apoptosis and steroid production
in vitro. Quantitative real-time polymerase chain
reaction, Western blot, flow cytometry and ELISA were performed to
evaluate the role of INHBB in the mouse GC cell
cycle, apoptosis and steroid production in vitro. The
results showed that the relative mRNA and protein expression of
INHBB in mouse GCs can be significantly reduced by
RNAi with pshRNA-B1, pshRNA-B2 and pshRNA-B3 plasmids, with pshRNA-B3
having the best knockdown efficiency. Downregulation of the expression
of INHBB significantly arrests cells in the G1 phase
of the cell cycle and increases the apoptosis rate in GCs. This was
further confirmed by downregulation of the protein expressions of
Cyclin D1, Cyclin E and Bcl2, while the protein expression of Bax was
upregulated. In addition, specific downregulation of
INHBB markedly decreased the concentration of
estradiol and progesterone, which was further validated by the
decrease in the mRNA levels of CYP19A1and
CYP11A1. These findings suggest that inhibin βB is
important in the regulation of apoptosis and cell cycle progression in
granulosa cells. Furthermore, the inhibin βB subunit has a role in the
regulation of steroid hormone biosynthesis. Evidence is accumulating
to support the concept that inhibin βB is physiologically essential
for early folliculogenesis in the mouse.
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Affiliation(s)
- Mohamed M'baye
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science & Technology, Huazhong Agricultural University, Wuhan 430070, PR China
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