Notch signaling pathway in cumulus cells reflecting zygote and embryo quality in polycystic ovary syndrome

2021 ◽  
Author(s):  
Mojtaba Masoudi ◽  
Nazila Yamini ◽  
Fahimeh Salehi ◽  
Reza Aflatoonian ◽  
Maryam Azizi Kutenaee ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Notch Signaling ◽  
Signaling Pathway ◽  
Embryo Quality ◽  
Polycystic Ovary ◽  
Cumulus Cells ◽  
Notch Signaling Pathway ◽  
Ovary Syndrome

scholarly journals TNFR1 is Upregulated and Mediates Apoptosis in Cumulus Cells of Women With Polycystic Ovarian Syndrome

2021 ◽  
Author(s):  
Yaping Jiang ◽  
Rui Jiang ◽  
Peng Zhang ◽  
qiong Yu ◽  
Hongping Ba ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Signaling Pathway ◽  
Granulosa Cells ◽  
Follicular Fluid ◽  
Polycystic Ovary ◽  
Cumulus Cells ◽  
Control Group ◽  
Ovary Syndrome ◽  
Tnf Α ◽  
Pcos Group

Abstract Purpose To investigate the changes of human granulosa cell, TNFR1, TNFR2 and their downstream molecules in patients with polycystic ovary syndrome (PCOS) and the control group. Methods We recruited infertile women with polycystic ovary syndrome (n = 30) and compared them with infertility due to fallopian tube obstruction(n = 30, control group). The ovaries were stimulated with GnRH agonists and gonadotropins. Follicular fluid from large follicles ([14 mm]) was pooled and granulosa cells (GCs) were separated by a cellular filter. The TNF-α level of follicular fluid was measured by ELISA. TUNEL assay were used to detect the apoptosis of purified GCs. Real-time PCR and Western blotting were used to detect the expression of TNF-related signaling molecules in GCs. Results The rate of high quality embryos in the PCOS group was lower than that in the control group. There were higher percentages of apoptosis in GCs of PCOS patients than in the control group. TNF-α is upregulated in follicular fluid of PCOS patients. TNFR1 and caspase-3 mRNA level were signifificantly higher in PCOS group than in the control group. TNF-α-mediated apoptosis of PCOS granulosa cells was mainly dependent on TNFR1.The TNF-α/TNFR1 signaling pathway mediates apoptosis rather than survival in cumulus cells of PCOS patients. Conclusions TNF-α expression was upregulated in follicular fluid of PCOS patients, and TNFR1 overexpression in female granulosa cells of PCOS was associated with higher levels of apoptosis in these cells, suggesting that the TNF-α/TNFR1 signaling pathway may be a candidate for higher apoptosis in female granulosa cells of PCOS.

Apoptotic biomarkers in cumulus cells in relation to embryo quality in polycystic ovary syndrome

2017 ◽  
Vol 296 (6) ◽  
pp. 1219-1227 ◽  
Author(s):  
Ensieh Salehi ◽  
Reza Aflatoonian ◽  
Ashraf Moeini ◽  
Nazila Yamini ◽  
Ebrahim Asadi ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Embryo Quality ◽  
Polycystic Ovary ◽  
Cumulus Cells ◽  
Ovary Syndrome

The role of vitamin D in metabolic and reproductive disturbances of polycystic ovary syndrome: A narrative mini-review

2020 ◽  
pp. 1-8
Author(s):  
Daniela Menichini ◽  
Gianpiero Forte ◽  
Beatrice Orrù ◽  
Giuseppe Gullo ◽  
Vittorio Unfer ◽  
...  
Keyword(s):  
Vitamin D ◽  
Polycystic Ovary Syndrome ◽  
Embryo Quality ◽  
Polycystic Ovary ◽  
Vitamin D Supplementation ◽  
Endometrial Receptivity ◽  
Metabolic Disturbances ◽  
Ovary Syndrome ◽  
Beneficial Role

Abstract. Vitamin D is a secosteroid hormone that plays a pivotal role in several metabolic and reproductive pathways in humans. Increasing evidence supports the role of vitamin D deficiency in metabolic disturbances and infertility in women with polycystic ovary syndrome (PCOS). Indeed, supplementation with vitamin D seems to have a beneficial role on insulin resistance and endometrial receptivity. On the other hand, exceedingly high levels of vitamin D appear to play a detrimental role on oocytes development and embryo quality. In the current review, we summarize the available evidence about the topic, aiming to suggest the best supplementation strategy in women with PCOS or, more generally, in those with metabolic disturbances and infertility. Based on the retrieved data, vitamin D seems to have a beneficial role on IR, insulin sensitivity and endometrial receptivity, but high levels and incorrect timing of administration seem to have a detrimental role on oocytes development and embryo quality. Therefore, we encourage a low dose supplementation (400–800 IU/day) particularly in vitamin D deficient women that present metabolic disturbances like PCOS. As far as the reproductive health, we advise vitamin D supplementation in selected populations, only during specific moments of the ovarian cycle, to support the luteal phase. However, ambiguities about dosage and timing of the supplementation still emerge from the clinical studies published to date and further studies are required.

Novel circular RNA expression in the cumulus cells of patients with polycystic ovary syndrome

2019 ◽  
Vol 299 (6) ◽  
pp. 1715-1725 ◽  
Author(s):  
Zhi Ma ◽  
Huishan Zhao ◽  
Yan Zhang ◽  
Xiaoyan Liu ◽  
Cuifang Hao
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Polycystic Ovary ◽  
Cumulus Cells ◽  
Circular Rna ◽  
Rna Expression ◽  
Ovary Syndrome

scholarly journals Adiponectin Reduces Embryonic Loss Rate and Ameliorates Trophoblast Apoptosis in Early Pregnancy of Mice with Polycystic Ovary Syndrome by Affecting the AMPK/PI3K/Akt/FoxO3a Signaling Pathway

2020 ◽  
Vol 27 (12) ◽  
pp. 2232-2241 ◽  
Author(s):  
Wenqian Zhang ◽  
Meng Zuo ◽  
Juan Lu ◽  
Yuxia Wang
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Signaling Pathway ◽  
Early Pregnancy ◽  
Loss Rate ◽  
Polycystic Ovary ◽  
Uterine Tissue ◽  
Trophoblast Cells ◽  
Ovary Syndrome ◽  
Villous Trophoblast ◽  
Embryo Loss

Abstract Reports in recent years have suggested that adiponectin (APN) improves insulin resistance and inhibits apoptosis by activating the AMP-activated protein kinase (AMPK) pathway and the PI3K/Akt signaling pathway after binding to its receptor. This study aims to explore the mechanism by which APN reduces embryo loss rate and trophoblast apoptosis in early pregnancy of mice with polycystic ovary syndrome (PCOS). PCOS mice were subcutaneously injected with APN (10 μg mg kg−1 day−1) on 11 consecutive days from the 3rd day of pregnancy onwards to observe the change of the embryo loss rate of PCOS mice induced by APN. Quantitative real-time PCR and Western blot were used to determine the relative expressions of mRNA and the proteins AMPK, PI3K, and Akt in mouse uterine tissue. At the same time, primary cultured mouse villous trophoblast cells were used to further explore the underlying mechanisms in vitro. APN significantly reduces the pregnancy loss rate of PCOS mice. At the same time, APN increases phosphorylation and mRNA expression levels of AMPK, PI3K, and Akt in PCOS mouse uterine tissue. In addition, trophoblast cells of model mice were treated with APN and inhibitors, and APN was found to reduce trophoblast cell apoptosis by affecting the phosphorylation levels of AMPK, PI3K, Akt, and FoxO3a proteins. APN reduces the embryo loss rate and ameliorates trophoblast apoptosis in PCOS mice by affecting the AMPK/PI3K/AKT/FoxO3a signaling pathway.

scholarly journals Abnormal expression of TLRs may play a role in lower embryo quality of women with polycystic ovary syndrome

2016 ◽  
Vol 62 (5) ◽  
pp. 353-358 ◽  
Author(s):  
Bao-Xia Gu ◽  
Xue Wang ◽  
Bao-Li Yin ◽  
Hai-Bin Guo ◽  
He-Long Zhang ◽  
...  
Keyword(s):  
Polycystic Ovary Syndrome ◽  
Embryo Quality ◽  
Polycystic Ovary ◽  
Ovary Syndrome ◽  
Abnormal Expression
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