ReproductionPub Date : 2024-01-08Print Date: 2024-01-01DOI: 10.1530/REP-23-0143
Kang Zhang, Tianyang Lan, Feifei Lin, Ruichuan Liu, Qifu He, Feng Gao, Shenghui Wu, Jian Kang, Hongmin Li, Fusheng Quan
{"title":"Effect of vitrification on protein O-GlcNAcylation in mouse metaphase II oocytes.","authors":"Kang Zhang, Tianyang Lan, Feifei Lin, Ruichuan Liu, Qifu He, Feng Gao, Shenghui Wu, Jian Kang, Hongmin Li, Fusheng Quan","doi":"10.1530/REP-23-0143","DOIUrl":"10.1530/REP-23-0143","url":null,"abstract":"<p><strong>In brief: </strong>Oocyte vitrification leads to DNA hypomethylation, which results in defect in early embryo development. This study reveals that oocyte vitrification impairs the DNA methylation pattern by influencing protein O-GlcNAcylation.</p><p><strong>Abstract: </strong>Oocyte vitrification leads to decreased DNA methylation levels, which impairs the quality and the developmental potential of oocytes. However, the underlying molecular mechanism still need to be further revealed. In this study, mouse metaphase II (M II) oocytes were frozen by vitrification technology, while fresh oocytes were used as the control group. The effect of oocyte vitrification on protein O-GlcNAcylation and its impact on the developmental potential of oocytes were elucidated. We found that the protein O-GlcNAcylation levels were significantly increased in vitrified oocytes. Increase of protein O-GlcNAcylation levels in control oocytes by PUGNAc (an O-GlcNAcase inhibitor) decreases blastocyst rate after parthenogenetic activation (20.82% in PUGNAc-treated group; 53.82% in control group, P < 0.05). We also discovered that DNA methylation was disrupted in two-cell embryos derived from vitrified oocytes, resulting in decreased 5mC and increased 5hmC, showing similar phenotypes to that derived from PUGNAc-treated oocytes. In vitrified and PUGNAc-treated oocytes, O-GlcNAcylated TET3 was significantly increased. Notably, by inhibiting protein O-GlcNAcylation in vitrified oocytes using OSMI1 (an O-GlcNAc transferase inhibitor) we restored the DNA methylation in two-cell embryos and ameliorated the developmental defects in early embryo. Thus, elevated protein O-GlcNAcylation in vitrified oocytes is an essential contributor to their declining embryonic developmental potential. Modulation of protein O-GlcNAcylation improves the developmental potential of vitrified oocytes.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71413760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2024-01-05Print Date: 2024-01-01DOI: 10.1530/REP-23-0173
Jennifer E Pearson-Farr, Regan Doherty, David S Chatelet, Patricia Goggin, Ka Ying Bonnie Ng, Jane S Lucas, Jane K Cleal, Ying C Cheong, Rohan M Lewis
{"title":"Ultrastructural cilia defects in multi-ciliated uterine glandular epithelial cells from women with reproductive failure.","authors":"Jennifer E Pearson-Farr, Regan Doherty, David S Chatelet, Patricia Goggin, Ka Ying Bonnie Ng, Jane S Lucas, Jane K Cleal, Ying C Cheong, Rohan M Lewis","doi":"10.1530/REP-23-0173","DOIUrl":"10.1530/REP-23-0173","url":null,"abstract":"<p><strong>In brief: </strong>The causes of subfertility and recurrent pregnancy loss are often unclear. This study shows that endometrial gland cilia from women with subfertility have ultrastructural defects.</p><p><strong>Abstract: </strong>Endometrial glands secrete products into the endometrium and are necessary for embryo implantation and successful pregnancy. However, structural and functional abnormalities in endometrial gland cilia from women with reproductive failure remain poorly understood. This was a cross-sectional study where endometrial biopsies were collected at days 19-23 of the menstrual cycle from women with unexplained recurrent pregnancy loss (n = 15), unexplained subfertility (n = 11) or from egg donor control participants (n = 10). Endometrial gland cilia ultrastructure was imaged by transmission electron microscopy and cilia defects assessed by an electron-microscopist from a national primary ciliary dyskinesia diagnostic centre. Endometrial glands were isolated, and the cilia beat frequency recorded by high speed video. Subfertile women have proportionately lower ultrastructurally normal cilia (P < 0.05); higher frequency of absent dynamin arms (P < 0.01) or inner arm defects (P < 0.01) and lower cilia beat frequency (P < 0.05). The mechanisms underlying these obversions have yet to be determined. Recent studies have identified cilia related gene expression changes associated with reproductive failure and this study adds to the growing body of literature revealing structural and functional changes. The observation that cilia defects occurred at a higher frequency in endometrial glands of subfertile women raises the question of its mechanistic role in implantation.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138434935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2024-01-04Print Date: 2024-01-01DOI: 10.1530/REP-23-0067
Francisco E Martín-Cano, Gemma Gaitskell-Phillips, Eva da Silva-Álvarez, Antonio Silva-Rodríguez, Alba Castillejo-Rufo, José Antonio Tapia, María Cruz Gil, Cristina Ortega-Ferrusola, Fernando J Peña
{"title":"The concentration of glucose in the media influences the susceptibility of stallion spermatozoa to ferroptosis.","authors":"Francisco E Martín-Cano, Gemma Gaitskell-Phillips, Eva da Silva-Álvarez, Antonio Silva-Rodríguez, Alba Castillejo-Rufo, José Antonio Tapia, María Cruz Gil, Cristina Ortega-Ferrusola, Fernando J Peña","doi":"10.1530/REP-23-0067","DOIUrl":"10.1530/REP-23-0067","url":null,"abstract":"<p><strong>In brief: </strong>Although common in many commercial extenders, supraphysiological concentrations of glucose in the media may be detrimental to stallion spermatozoa. In this study, we present evidence that these elevated glucose levels may predispose spermatozoa to ferroptosis.</p><p><strong>Abstract: </strong>Stallion spermatozoa depend on oxidative phosphorylation as their major source of ATP; however, the metabolism of these cells is complex and a great degree of metabolic plasticity exists. The composition of the media in which the spermatozoa are extended, or exposed to in the mare's reproductive tract, exerts a profound effect on sperm function and may even accelerate cell demise. Recent research indicates that high concentrations of glucose in the media, although common in commercial extenders, may be detrimental. To determine if supraphysiological glucose concentration may induce or predispose to ferroptosis (a caspase-independent form of programmed cell death, triggered by oxidative stress), stallion spermatozoa were incubated under different concentrations of glucose, 67 mM (HG) or 1 mM plus 10 mM pyruvate (LG-HP), in the presence or absence of known inductors of ferroptosis. Furthermore, we developed a single-cell flow metabolic assay to identify different metabolic phenotypes in spermatozoa. Storage and incubation of spermatozoa under high glucose concentrations led to an increase in the percentage of necrotic spermatozoa (P < 0.0001). Moreover, ferroptosis was induced more intensely in sperm in media with high glucose concentrations (P < 0.0001). Finally, we observed that induction of ferroptosis modified two proteins (oxoglutarate dehydrogenase and superoxide dismutase 2) in spermatozoa incubated in media containing 67 mM glucose but not in media containing 1 mM glucose and 10 mM pyruvate. The composition of the media, especially the concentration of glucose, exerts a major impact on the functionality and life span of the spermatozoa. The results reported here may pave the way for improvements in existing semen extenders.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49692236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The press-assisted fusion scheme significantly mitigates the quantity of HVJ-E required in mitochondrial replacement techniques.","authors":"Meng Ma, Shutian Jiang, Wei Jin, Wenzhi Li, Chen Chen, Kaibo Lin, Xiaoyu Liao, Danjun Li, Yanping Kuang, Qifeng Lyu","doi":"10.1530/REP-23-0238","DOIUrl":"https://doi.org/10.1530/REP-23-0238","url":null,"abstract":"<p><p>In brief: The impact of HVJ-E employed in mitochondrial replacement techniques (MRTs) on embryonic development remains uncertain. This study has exhibited the influence of HVJ-E utilized in MRTs on embryonic development and has devised a novel HVJ-E-induced fusion approach to curtail the amount of HVJ-E employed in MRTs. Abstract: Mitochondrial replacement techniques (MRTs) provide a viable option for women carrying pathogenic mitochondrial DNA (mtDNA) variants to conceive disease-free offspring with a genetic connection. In comparison to electrofusion, HVJ-E-induced fusion has been identified as the most promising approach for clinical translation of MRTs due to its absence of electrical interference. However, despite confirmation of the absence of RNA activity in HVJ-E, a reduction in blastocyst quality has been observed in various MRTs studies utilizing the HVJ-E-induced fusion scheme. Recent investigations have revealed a dose-dependent elevation of reactive oxygen species (ROS) levels in various cancer cells incubated with HVJ-E. However, the impact of HVJ-E as a sole determinant on embryonic development in MRTs remains unverified. This investigation establishes that the augmented concentration of HVJ-E utilized in the conventional HVJ-E fusion protocol is an autonomous variable that influences embryonic development in MRTs. This effect may be attributed to amplified DNA damage resulting from heightened levels of ROS in reconstructed embryos. To mitigate the presence of HVJ-E in reconstructed zygotes while maintaining optimal fusion efficiency in MRTs, a novel HVJ-E-induced fusion approach was devised, namely, press-assisted fusion. This technique offers potential advantages in reducing detrimental factors that impede embryo development in MRTs.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139432911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2024-01-01DOI: 10.1530/REP-23-0049
Mathieu Douhard, Victor Ronget, Frédéric Douhard
{"title":"Long-lasting effects of the presence of male siblings in utero on subsequent reproductive performance.","authors":"Mathieu Douhard, Victor Ronget, Frédéric Douhard","doi":"10.1530/REP-23-0049","DOIUrl":"https://doi.org/10.1530/REP-23-0049","url":null,"abstract":"<p><p>Laboratory studies with rodents indicate that in utero proximity of a female to male foetus can affect female's subsequent reproduction due to elevated testosterone exposure during early development. It remains unknown whether these findings can be generalised to non-laboratory species because the need for caesarean section makes it difficult to determine the intrauterine position outside laboratory conditions. As an alternative, some studies have compared the reproductive performance of individuals born in male-biased litters to those born in female-biased litters. We identified 44 of those studies in 28 viviparous species for a total of 176 relationships between litter sex composition around the time of birth and subsequent reproductive performance (fertility, fecundity, age at first reproduction, interbirth intervals or post-natal survival of offspring). Those relationships are discordant and complex both within and across species. Some factors can mask an actual association between litter sex composition and reproductive performance. Conversely, a part of significant relationships between litter sex composition and reproductive performance likely arises via pathways other than androgen- and oestrogen-transfer between foetuses of different sexes.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139492010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2024-01-01DOI: 10.1530/rep-23-0383
Carolina Marvaldi, Felisa María Herrero Lo Giudice, Clare Johnson, Julieta Schander, Fernando Correa, Maximiliano Cella, Julieta Aisemberg, Ana María Franchi, Heather Bradshaw, Manuel Luis Wolfson
{"title":"Endocannabinoid regulation in the cervix during pregnancy: insights into molecular mechanisms of premature labor","authors":"Carolina Marvaldi, Felisa María Herrero Lo Giudice, Clare Johnson, Julieta Schander, Fernando Correa, Maximiliano Cella, Julieta Aisemberg, Ana María Franchi, Heather Bradshaw, Manuel Luis Wolfson","doi":"10.1530/rep-23-0383","DOIUrl":"https://doi.org/10.1530/rep-23-0383","url":null,"abstract":"<p>During pregnancy, the main role of the cervix is to isolate the fetus from outside pathogens and maintain the relatively closed system of uterine gestation. Conversely, towards the end of pregnancy, the cervix must be remodeled to increase flexibility and allow the delivery. This process is called cervical remodeling and dysregulation of the process plays a role in premature delivery. The endocannabinoidome plays an important role in several reproductive events, however its function on cervical tissue throughout pregnancy is poorly understood. The goal of this study was to evaluate the presence and participation of the endocannabinoidome in lipopolysaccharide (LPS)-induced cervical changes. Therefore, we evaluated key components of the endocannabinoidome in cervical tissue from non-pregnant mice and pregnant mice with and without LPS treatment. Using mass spectrometric analysis, we found an increase in anandamide and 2-arachidonoylglycerol in the cervix of pregnant mice when compared to non-pregnant mice. We have also found a reduction in FAAH protein expression in these tissues. Furthermore, when treated with LPS, we observed a reduction in the cervical immunostaining with anti-CB1, and anti-CB2 antibodies. Likewise, using cervix explants from pregnant mice, we found that LPS significantly increased cervical metalloprotease activity and cyclooxygenase 2, which were subsequently modulated by cannabinoid receptor antagonists. </p><p>Collectively, our findings suggest that an LPS-induced imbalance of cervix endocannabinoidome likely contributes to premature cervical remodeling, which is part of the key components that contribute to premature delivery.\u0000</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":"17 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139561098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2024-01-01DOI: 10.1530/REP-23-0478
Vakil Ahmad, Sai Goutham Reddy Yeddula, Bhanu Telugu, Thomas E Spencer, Andrew M Kelleher
{"title":"Development of Polarity-Reversed Endometrial Epithelial Organoids.","authors":"Vakil Ahmad, Sai Goutham Reddy Yeddula, Bhanu Telugu, Thomas E Spencer, Andrew M Kelleher","doi":"10.1530/REP-23-0478","DOIUrl":"10.1530/REP-23-0478","url":null,"abstract":"<p><p>The uterine epithelium is composed of a single layer of hormone responsive polarized epithelial cells that line the lumen and form tubular glands. Endometrial epithelial organoids (EEO) can be generated from uterine epithelia and recapitulate cell composition and hormone responses in vitro. As such, the development of EEO represents a major advance for facilitating mechanistic studies in vitro. However, a major limitation for the use of EEO cultured in basement membrane extract and other hydrogels is the inner location of apical membrane, thereby hindering direct access to the apical surface of the epithelium to study interactions with the embryo or infectious agents such as viruses and bacteria. Here, a straightforward strategy was developed that successfully reverses the polarity of EEO. The result is an apical-out organoid that preserves a distinct apical-basolateral orientation and remains responsive to ovarian steroid hormones. Our investigations highlight the utility of polarity-reversed EEO to study interactions with E. coli and blastocysts. This method of generating apical-out EEO lays the foundation for developing new in vitro functional assays, particularly regarding epithelial interactions with embryos during pregnancy or other luminal constituents in a pathological or diseased state.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10959009/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139432909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2024-01-01DOI: 10.1530/rep-23-0181
João Vitor Alcantara da Silva, Jessica Ispada, Ricardo Perecin Nociti, Aldcejam Martins da Fonseca Junior, Camila Bruna De Lima, Erika Cristina dos Santos, Marcos Roberto Chiaratti, Marcella Pecora Milazzotto
{"title":"The central role of pyruvate metabolism on the epigenetic maturation and transcriptional profile of bovine oocytes.","authors":"João Vitor Alcantara da Silva, Jessica Ispada, Ricardo Perecin Nociti, Aldcejam Martins da Fonseca Junior, Camila Bruna De Lima, Erika Cristina dos Santos, Marcos Roberto Chiaratti, Marcella Pecora Milazzotto","doi":"10.1530/rep-23-0181","DOIUrl":"https://doi.org/10.1530/rep-23-0181","url":null,"abstract":"<p>Pyruvate, the final product of glycolysis, undergoes conversion into acetyl-CoA within the mitochondria of oocytes, serving as a primary fuel source for the tricarboxylic acid (TCA) cycle. The citrate generated in the TCA cycle can be transported to the cytoplasm and converted back into acetyl-CoA. This acetyl-CoA can either fuel lipid synthesis or act as a substrate for histone acetylation. This study aimed to investigate how pyruvate metabolism influences lysine 9 histone 3 acetylation (H3K9ac) dynamics and RNA transcription in bovine oocytes during in vitro maturation (IVM). Bovine cumulus-oocyte complexes were cultured in vitro for 24 hours, considering three experimental groups: Control (IVM medium only), DCA (IVM supplemented with sodium dichloroacetate, a stimulant of pyruvate oxidation into acetyl-CoA), or IA (IVM supplemented with sodium iodoacetate, a glycolysis inhibitor). The results revealed significant alterations in oocyte metabolism in both treatments, promoting the utilization of lipids as an energy source. These changes during IVM affected the dynamics of H3K9ac, subsequently influencing the oocyte's transcriptional activity. In the DCA and IA groups, a total of 148 and 356 differentially expressed genes were identified, respectively, compared to the control group. These findings suggest that modifications in pyruvate metabolism trigger the activation of metabolic pathways, particularly lipid metabolism, changing acetyl-CoA availability and H3K9ac levels, ultimately impacting the mRNA content of in vitro matured bovine oocytes.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":"3 1","pages":""},"PeriodicalIF":3.8,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139561373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2023-12-15Print Date: 2024-01-01DOI: 10.1530/REP-23-0342
Stephen Manchishi, Malwina Prater, William Henry Colledge
{"title":"Transcriptional profiling of Kiss1 neurons from arcuate and rostral periventricular hypothalamic regions in female mice.","authors":"Stephen Manchishi, Malwina Prater, William Henry Colledge","doi":"10.1530/REP-23-0342","DOIUrl":"10.1530/REP-23-0342","url":null,"abstract":"<p><strong>In brief: </strong>The transcriptional profiles of Kiss1 neurons from the arcuate and the rostral periventricular region of the third ventricle of the hypothalamus have been directly compared in diestrous female mice. Differentially expressed genes provide molecular signatures for these two populations of Kiss1 neurons and insights into their physiology.</p><p><strong>Abstract: </strong>The neuropeptide kisspeptin is produced by Kiss1 neurons and is required for normal mammalian fertility. The two main populations of Kiss1 neurons are located in the arcuate (ARC) and the rostral periventricular area of the third ventricle (RP3V) of the hypothalamus. To define the molecular signature of these Kiss1 populations, transcriptomics profiling was performed using purified Kiss1 neurons from diestrous stage female mice. From a data set of 7026 genes, 332 differentially expressed transcripts were identified between the Kiss1ARC and Kiss1RP3V neurons. These data have uncovered novel transcripts and expanded the receptor expression, co-transmitter and transcription factor profiles of Kiss1 neurons. Validation by quantitative RT-PCR confirmed differential expression of Cartpt, Ddc, Gal, Gda, Npy2r, Penk, Rasp18, Rxfp3, Slc18a2, and Th in Kiss1RP3V neurons and Gpr83, Hctr2, Nhlh2, Nmn, Npr3, Nr4a2, Nr5a2, Olfm2, Tac2 and Tacr3 in Kiss1ARC neurons. Enriched pathways common to both Kiss1 populations included the NF-kB, mTor, endocannabinoid, GPCR, Wnt and oestrogen signalling while some pathways (e.g. cytomegalovirus infection, dopaminergic and serotonergic biosynthesis) were specific to Kiss1RP3V neurons. Our gene expression data set augments the existing data sets describing the transcriptional profiles of Kiss1 neuronal populations.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71485517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ReproductionPub Date : 2023-12-14Print Date: 2024-01-01DOI: 10.1530/REP-23-0326
Fengrun Sun, Liyuan Cui, Jinfeng Qian, Meirong Du, Songcun Wang
{"title":"Downregulation of CRHBP is associated with trophoblast invasion inhibition in recurrent pregnancy loss.","authors":"Fengrun Sun, Liyuan Cui, Jinfeng Qian, Meirong Du, Songcun Wang","doi":"10.1530/REP-23-0326","DOIUrl":"10.1530/REP-23-0326","url":null,"abstract":"<p><strong>In brief: </strong>Corticotropin-releasing hormone binding protein (CRHBP) is fundamental to the stress response and plays an important role in parturition during pregnancy. This study shows that abnormal CRHBP expression could be an early warning sign of recurrent pregnancy loss and that CRHBP knockdown could suppress HTR8/SVneo cell invasion by the PKC signaling pathway via interacting with CRH receptor 2.</p><p><strong>Abstract: </strong>Trophoblast invasion is critical for placentation and pregnancy success. Trophoblast dysfunction results in many pregnancy complications, including recurrent pregnancy loss (RPL). Corticotropin-releasing hormone binding protein (CRHBP) is fundamental to the stress response and plays an important role in parturition during pregnancy via binding with CRH. To further characterize its function in early pregnancy, we explored the expression of CRHBP in villi during early pregnancy. Compared with normal pregnant women, we demonstrated that the expression of CRHBP decreased in the trophoblasts and villi in RPL patients and that knockdown of CRHBP expression could suppress HTR8/SVneo cell invasion significantly. Our further exploration indicated that the capacity of CRHBP for regulating trophoblast invasion was associated with the PKC signaling pathway via interacting with CRH receptor 2. These findings might provide a new fundamental mechanism for successful pregnancy and a new diagnostic and therapeutic target for RPL.</p>","PeriodicalId":21127,"journal":{"name":"Reproduction","volume":" ","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72015155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}