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Huang W, Chen ACH, Wei X, Fong SW, Yeung WSB, Lee YL. Uncovering the role of TET2-mediated ENPEP activation in trophoblast cell fate determination. Cell Mol Life Sci 2024; 81:270. [PMID: 38886218 DOI: 10.1007/s00018-024-05306-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/24/2024] [Accepted: 06/04/2024] [Indexed: 06/20/2024]
Abstract
Early trophoblast differentiation is crucial for embryo implantation, placentation and fetal development. Dynamic changes in DNA methylation occur during preimplantation development and are critical for cell fate determination. However, the underlying regulatory mechanism remains unclear. Recently, we derived morula-like expanded potential stem cells from human preimplantation embryos (hEPSC-em), providing a valuable tool for studying early trophoblast differentiation. Data analysis on published datasets showed differential expressions of DNA methylation enzymes during early trophoblast differentiation in human embryos and hEPSC-em derived trophoblastic spheroids. We demonstrated downregulation of DNA methyltransferase 3 members (DNMT3s) and upregulation of ten-eleven translocation methylcytosine dioxygenases (TETs) during trophoblast differentiation. While DNMT inhibitor promoted trophoblast differentiation, TET inhibitor hindered the process and reduced implantation potential of trophoblastic spheroids. Further integrative analysis identified that glutamyl aminopeptidase (ENPEP), a trophectoderm progenitor marker, was hypomethylated and highly expressed in trophoblast lineages. Concordantly, progressive loss of DNA methylation in ENPEP promoter and increased ENPEP expression were detected in trophoblast differentiation. Knockout of ENPEP in hEPSC-em compromised trophoblast differentiation potency, reduced adhesion and invasion of trophoblastic spheroids, and impeded trophoblastic stem cell (TSC) derivation. Importantly, TET2 was involved in the loss of DNA methylation and activation of ENPEP expression during trophoblast differentiation. TET2-null hEPSC-em failed to produce TSC properly. Collectively, our results illustrated the crucial roles of ENPEP and TET2 in trophoblast fate commitments and the unprecedented TET2-mediated loss of DNA methylation in ENPEP promoter.
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Affiliation(s)
- Wen Huang
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
- Centre for Translational Stem Cell Biology, Science Park, Sha Tin , Hong Kong, Special Administrative Region, China
| | - Andy Chun Hang Chen
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
- Centre for Translational Stem Cell Biology, Science Park, Sha Tin , Hong Kong, Special Administrative Region, China
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Xujin Wei
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - Sze Wan Fong
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China
| | - William Shu Biu Yeung
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China.
- Centre for Translational Stem Cell Biology, Science Park, Sha Tin , Hong Kong, Special Administrative Region, China.
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
| | - Yin Lau Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, Special Administrative Region, China.
- Centre for Translational Stem Cell Biology, Science Park, Sha Tin , Hong Kong, Special Administrative Region, China.
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
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Zhou B, Yu G, Zhao M, Li Y, Li J, Xiang Y, Tong L, Chu X, Wang C, Song Y. The lncRNA LINC00339-encoded peptide promotes trophoblast adhesion to endometrial cells via MAPK and PI3K-Akt signaling pathways. J Assist Reprod Genet 2024; 41:493-504. [PMID: 38049704 PMCID: PMC10894799 DOI: 10.1007/s10815-023-02995-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/20/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Endometrial receptivity (ER), a pivotal event for successful embryo implantation, refers to the capacity of endometrium to allow the adhesion of the trophectoderm of the blastocyst to endometrial cells. In this paper, we set to elucidate whether the peptides encoded by lncRNAs could influence trophoblast cells' adhesion to endometrial cells. METHODS WGCNA construction and bioinformatics were used to find out the ER-related lncRNAs with coding potential. Protein analysis was done by immunoblotting and immunofluorescence (IF) microscopy. CCK-8 and Calcein-AM/PI double staining assays were employed to evaluate cell viability. The effect of the peptide on trophoblast spheroids' adhesion to endometrial cells was evaluated. The RNA sequencing (RNA-seq) analysis was applied to identify downstream molecular processes. RESULTS lncRNA LINC00339 was found to be related to ER development and it had been predicted to have protein-coding potential. LINC00339 had high occupancy of ribosomes and was confirmed to encode a 49-aa peptide (named LINC00339-205-49aa). LINC00339-205-49aa could promote the attachment of JAR trophoblast spheroids to Ishikawa endometrial cells in vitro. LINC00339-205-49aa also upregulated the expression of E-cadherin in Ishikawa cells. Mechanistically, MAPK and PI3K-Akt signaling pathways were involved in the modulation of LINC00339-205-49aa, which were activated by LINC00339-205-49aa in Ishikawa cells. CONCLUSION These data demonstrate that a previously uncharacterized peptide encoded by lncRNA LINC00339 has the ability to enhance JAR trophoblast spheroids' adhesion to Ishikawa endometrial cells, highlighting a new opportunity for the development of drugs to improve ER.
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Affiliation(s)
- Bo Zhou
- Medical Research Center, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, 450014, People's Republic of China
| | - Guo Yu
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Mingqi Zhao
- Zhengzhou University, Zhengzhou, Henan, China
| | - Yan Li
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Jing Li
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Yungai Xiang
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Lili Tong
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Xiying Chu
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Caiyi Wang
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China
| | - Yuxia Song
- Department of Reproductive Medicine, The Second Affiliated Hospital of Zhengzhou University, No. 2 Jingba Road, Zhengzhou, 450014, Henan, China.
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Liman N, Sağsöz H. The immunolocalization of cadherins and beta-catenin in the cervix and vagina of cycling cows. Vet Res Commun 2023; 47:1155-1175. [PMID: 36729278 DOI: 10.1007/s11259-023-10075-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 01/14/2023] [Indexed: 02/03/2023]
Abstract
The adherens junctions (AJs) maintain the epithelial cell layers' structural integrity and barrier function. AJs also play a vital role in various biological and pathological processes. AJs perform these functions through the cadherin-catenin adhesion complex. This study investigated the presence, cell-specific localization, and temporal distribution of AJ components such as classical type I cadherins and beta-catenin in the cow cervix and vagina during the estrous cycle. Immunohistochemistry and Western blot analysis results demonstrated that beta-catenin and epithelial (E)-, neural (N)-, and placental (P)-cadherins are expressed in the cow cervix and vagina during the estrous cycle. These adhesion molecules were localized in the membrane and cytoplasm of the ciliated and non-ciliated cervical cells and the stratified vaginal epithelial cells. Positive immunostaining for P-, N-cadherin, and beta-catenin was also observed in the vascular endothelial cells of the cervical and vaginal stroma. Quantitative immunohistochemistry examinations revealed that in the cervical and vaginal epithelia, P-cadherin's optical density values (ODv) were the highest; in contrast, the N-cadherin ODv were the lowest. The ODv of P-cadherin and beta-catenin in the cervical epithelium and E-cadherin in the vagina were significantly higher in the luteal phase versus the follicular phase of the estrous cycle. Furthermore, the ODv of P-cadherin, N-cadherin, and beta-catenin in the cervix's central and peripheral epithelial regions were different during the estrous cycle. These findings indicate that classical cadherins and beta-catenin in the cervix and vagina exhibit cell- and tissue-specific expression patterns under the influence of estrogen and progesterone hormones during the estrous cycle.
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Affiliation(s)
- Narin Liman
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Erciyes University, 38039, Kayseri, Turkey.
| | - Hakan Sağsöz
- Department of Histology and Embryology, Faculty of Veterinary Medicine, Dicle University, Diyarbakır, Turkey
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Liang X, Qiu X, Ma Y, Xu W, Chen S, Zhang P, Liu M, Lin X. KRT18 regulates trophoblast cell migration and invasion which are essential for embryo implantation. Reprod Biol Endocrinol 2023; 21:78. [PMID: 37620903 PMCID: PMC10464462 DOI: 10.1186/s12958-023-01129-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Female infertility is a worldwide concern that impacts the quality of life and well-being of affected couples. Failure of embryo implantation is a major cause of early pregnancy loss and is precisely regulated by a programmed molecular mechanism. Recent studies have shown that proper trophoblast adhesion and invasion are essential for embryo implantation. However, the potential regulatory mechanism involved in trophoblast adhesion and invasion has yet to be fully elucidated. KRT18 has been reported to play a critical role in early embryonic development, but its physiological function in embryo implantation remains unclear. In the present study, we revealed that KRT18 was highly expressed in trophoblast cells and that knockdown of KRT18 in mouse embryos inhibited embryo adhesion and implantation. In vitro experiments further showed that silencing KRT18 disturbed trophoblast migration and invasion. More importantly, we provide evidence that KRT18 directly binds to and stabilizes cell surface E-cadherin in trophoblast cells through microscale thermophoresis (MST) analysis and molecular biology experiments. In brief, our data reveal that KRT18, which is highly expressed in trophoblast cells, plays an important role in the regulation of trophoblast invasion and adhesion during embryo implantation by directly binding to E-cadherin.
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Affiliation(s)
- Xiaoling Liang
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Xiaoxiao Qiu
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Obstetrics and Gynaecology, Taizhou Municipal Hospital, Taizhou, China
| | - Yana Ma
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenzhi Xu
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China
| | - Sijia Chen
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peipei Zhang
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Obstetrics and Gynaecology, Tiantai People's Hospital of Zhejiang Province, Taizhou, China
| | - Mengying Liu
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaona Lin
- Assisted Reproduction Unit, Department of Obstetrics and Gynaecology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Key Laboratory of Reproductive Dysfunction Management of Zhejiang Province, Hangzhou, China.
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Wei X, Qiaoli W, Mingzhi L, Chuang L, Qianqian Z, Xiaoyu C, Zhiwei Z, Xiaohuan F, Sa L, Xiaolei Z, Weidong H, Jianzhi P, Jianhui T, Junjie L. Effect of fixed-time artificial insemination on corpus luteum gene expression at the day 16 and 25 pregnancy of gilt. Anim Biotechnol 2022; 33:1510-1518. [PMID: 33941027 DOI: 10.1080/10495398.2021.1914068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Utilization of female livestock can be optimized by application of Fixed-Time Artificial Insemination (FTAI), which plays an important role in large-scale livestock production. However, molecular mechanism of FTAI affecting reproductive performance remains unclear. To investigate the effects of FTAI on corpus luteum in 16 and 25 days of pregnancy gilts, 12 pregnancy gilts were selected from Altrenogest + PMSG + GnRH (APG) group and control group. The number of left and right CL in APG group were significantly higher than control (p < 0.05). Furthermore, result showed the number of differentially expressed genes between 16APG group and 16 C group was obviously larger than that between 25APG and 25 C group (2394 vs. 1476). Up regulated genes in APG were mainly associated with cytokine production and secretion, cell communication and transport (day 16) and angiogenesis, cell cycle and cell-cell signaling (day 25). The expression of differentially expressed genes (RPL10, CYP17A1, DCN, IL18, LDLR and PRLR) in luteal tissue were verified by real-time PCR. In summary, APG program significantly improve reproductive efficiency of gilts through up regulation of cytokine production/secretion, cell communication and transport in Day 16 pregnancy and angiogenesis, cell cycle and cell-cell signaling at Day 25 pregnancy in porcine.
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Affiliation(s)
- Xia Wei
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China.,College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Wei Qiaoli
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Liu Mingzhi
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Liu Chuang
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Zhao Qianqian
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Chen Xiaoyu
- Zhejiang Academy of Agricultural Sciences, Institute of Animal Husbandry and Veterinary Science, Hangzhou, China
| | - Zhu Zhiwei
- Zhejiang Academy of Agricultural Sciences, Institute of Animal Husbandry and Veterinary Science, Hangzhou, China
| | - Fang Xiaohuan
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Li Sa
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China
| | - Zhang Xiaolei
- College of Life Science and Technology, Southwest Minzu University, Chengdu, China
| | - Hua Weidong
- Zhejiang Academy of Agricultural Sciences, Institute of Animal Husbandry and Veterinary Science, Hangzhou, China
| | - Pan Jianzhi
- Zhejiang Academy of Agricultural Sciences, Institute of Animal Husbandry and Veterinary Science, Hangzhou, China
| | - Tian Jianhui
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Li Junjie
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, China.,Research Center of Cattle and Sheep Embryo Engineering Technique of Hebei Province, Baoding, China
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Yu SL, Kang Y, Jeong DU, Lee DC, Jeon HJ, Kim TH, Lee SK, Han AR, Kang J, Park SR. The miR-182-5p/NDRG1 Axis Controls Endometrial Receptivity through the NF-κB/ZEB1/E-Cadherin Pathway. Int J Mol Sci 2022; 23:ijms232012303. [PMID: 36293154 PMCID: PMC9602861 DOI: 10.3390/ijms232012303] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/29/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022] Open
Abstract
Endometrial receptivity is essential for successful pregnancy, and its impairment is a major cause of embryo-implantation failure. MicroRNAs (miRNAs) that regulate epigenetic modifications have been associated with endometrial receptivity. However, the molecular mechanisms whereby miRNAs regulate endometrial receptivity remain unclear. Therefore, we investigated whether miR-182 and its potential targets influence trophoblast cell attachment. miR-182 was expressed at lower levels in the secretory phase than in the proliferative phase of endometrium tissues from fertile donors. However, miR-182 expression was upregulated during the secretory phase in infertile women. Transfecting a synthetic miR-182-5p mimic decreased spheroid attachment of human JAr choriocarcinoma cells and E-cadherin expression (which is important for endometrial receptivity). miR-182-5p also downregulated N-Myc downstream regulated 1 (NDRG1), which was studied further. NDRG1 was upregulated in the secretory phase of the endometrium tissues and induced E-cadherin expression through the nuclear factor-κΒ (NF-κΒ)/zinc finger E-box binding homeobox 1 (ZEB1) signaling pathway. NDRG1-overexpressing or -depleted cells showed altered attachment rates of JAr spheroids. Collectively, our findings indicate that miR-182-5p-mediated NDRG1 downregulation impaired embryo implantation by upregulating the NF-κΒ/ZEB1/E-cadherin pathway. Hence, miR-182-5p is a potential biomarker for negative selection in endometrial receptivity and a therapeutic target for successful embryo implantation.
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Affiliation(s)
- Seong-Lan Yu
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
| | - Yujin Kang
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
| | - Da-Un Jeong
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
| | - Dong Chul Lee
- Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
| | - Hye Jin Jeon
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
| | - Tae-Hyun Kim
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
- Department of Obstetrics and Gynecology, Konyang University Hospital, Daejeon 35365, Korea
| | - Sung Ki Lee
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
- Department of Obstetrics and Gynecology, Konyang University Hospital, Daejeon 35365, Korea
| | - Ae Ra Han
- I-Dream Clinic, Department of Obstetrics and Gynecology, Mizmedi Hospital, Seoul 07639, Korea
- Daegu cha Fertility Center, CHA University, Daegu 42469, Korea
| | - Jaeku Kang
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon 35365, Korea
- Correspondence: (J.K.); (S.-R.P.); Tel.: +82-42-600-8685 (J.K.); +82-42-600-8695 (S.-R.P.)
| | - Seok-Rae Park
- Priority Research Center, Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon 35365, Korea
- Department of Microbiology, College of Medicine, Konyang University, Daejeon 35365, Korea
- Correspondence: (J.K.); (S.-R.P.); Tel.: +82-42-600-8685 (J.K.); +82-42-600-8695 (S.-R.P.)
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Chen X, Fernando SR, Lee YL, Yeung WSB, Ng EHY, Li RHW, Lee KF. High-Throughput In Vitro Screening Identified Nemadipine as a Novel Suppressor of Embryo Implantation. Int J Mol Sci 2022; 23:ijms23095073. [PMID: 35563464 PMCID: PMC9103851 DOI: 10.3390/ijms23095073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/29/2022] [Accepted: 05/01/2022] [Indexed: 02/01/2023] Open
Abstract
Current contraceptive methods interfere with folliculogenesis, fertilization, and embryo implantation by physical or hormonal approaches. Although hormonal contraceptive pills are effective in regulating egg formation, they are less effective in preventing embryo implantation. To explore the use of non-hormonal compounds that suppress embryo implantation, we established a high-throughput spheroid-endometrial epithelial cell co-culture assay to screen the Library of Pharmacologically Active Compounds (LOPAC) for compounds that affect trophoblastic spheroid (blastocyst surrogate) attachment onto endometrial epithelial Ishikawa cells. We identified 174 out of 1280 LOPAC that significantly suppressed BeWo spheroid attachment onto endometrial Ishikawa cells. Among the top 20 compounds, we found the one with the lowest cytotoxicity in Ishikawa cells, P11B5, which was later identified as Nemadipine-A. Nemadipine-A at 10 µM also suppressed BeWo spheroid attachment onto endometrial epithelial RL95-2 cells and primary human endometrial epithelial cells (hEECs) isolated from LH +7/8-day endometrial biopsies. Mice at 1.5 days post coitum (dpc) treated with a transcervical injection of 100 µg/kg Nemadipine-A or 500 µg/kg PRI-724 (control, Wnt-inhibitor), but not 10 µg/kg Nemadipine-A, suppressed embryo implantation compared with controls. The transcript expressions of endometrial receptivity markers, integrin αV (ITGAV) and mucin 1 (MUC1), but not β-catenin (CTNNB1), were significantly decreased at 2.5 dpc in the uterus of treated mice compared with controls. The reduction of embryo implantation by Nemadipine-A was likely mediated through suppressing endometrial receptivity molecules ITGAV and MUC1. Nemadipine-A is a potential novel non-hormonal compound for contraception.
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Affiliation(s)
- Xian Chen
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
| | - Sudini Ranshaya Fernando
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
- Department of Animal Science, Faculty of Animal Science and Export Agriculture, Uva Wellassa University, Badulla 90000, Sri Lanka
| | - Yin-Lau Lee
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
| | - William Shu-Biu Yeung
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
| | - Ernest Hung-Yu Ng
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
| | - Raymond Hang-Wun Li
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
| | - Kai-Fai Lee
- Department of Obstetrics and Gynaecology, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (X.C.); (S.R.F.); (Y.-L.L.); (W.S.-B.Y.); (E.H.-Y.N.); (R.H.-W.L.)
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518000, China
- Correspondence: ; Fax: +852-28161947
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Bi Y, Huang W, Yuan L, Chen S, Liao S, Fu X, Liu B, Yang Y. HOXA10 improves endometrial receptivity by upregulating E-cadherin. Biol Reprod 2022; 106:992-999. [PMID: 35044439 DOI: 10.1093/biolre/ioac007] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/03/2022] [Accepted: 01/12/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
In the endometrium of women with recurrent implantation failure (RIF) and unexplained recurrent miscarriage (RM),the expression levels of homeobox A10 (HOXA10) and E-cadherin were positively correlated. To explore whether HOXA10 regulates E-cadherin during endometrial receptivity establishment, Ishikawa and RL95–2 cells were transfected with target-specific siRNA and overexpression plasmid of HOXA10. The expression levels of HOXA10 and E-cadherin were measured by western blot and qRT-PCR. Attachment assay of JEG-3 spheroids to endometrial cells were conducted to explore the adhesive functions after HOXA10 interfered. Chromatin immunoprecipitation assays and dual luciferase reporter were used to investigate the regulatory mechanism of HOXA10. CD1 mice were transfected with si-HOXA10 to confirm these results in vivo. In Ishikawa and RL95–2 cells, the expression of E-cadherin was positively correlated with HOXA10 when it was silenced/overexpressed. Consistently, the adhesion of endometrial epithelium cells and trophoblast cells was inhibited after HOXA10 was silenced, and exogenous restoration of E-cadherin expression reversed this effect to some extent. HOXA10 regulates the expression of E-cadherin by directly binding to a conserved motif (TGTACTAAAAA) located in the E-cadherin promoter region. In addition, after knockdown of HOXA10 in CD1 mice, both the implantation and live birth rates were decreased. In conclusion, HOXA10 can bind to the E-cadherin promoter region and directly regulate its expression, thereby improving endometrial receptivity and subsequently increasing the embryo adhesion and implantation.
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Affiliation(s)
- Yin Bi
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Weiyu Huang
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Lifang Yuan
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Saiqiong Chen
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Shengbin Liao
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Xiaoqian Fu
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Bo Liu
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
| | - Yihua Yang
- Reproductive Medicine Centre, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
- Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, China
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9
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Tiwari A, Ashary N, Singh N, Sharma S, Modi D. Modulation of E-Cadherin and N-Cadherin by ovarian steroids and embryonic stimuli. Tissue Cell 2021; 73:101670. [PMID: 34710830 DOI: 10.1016/j.tice.2021.101670] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/01/2021] [Accepted: 10/18/2021] [Indexed: 12/26/2022]
Abstract
Endometrium is a dynamic tissue that undergoes extensive remodelling to attain a receptive state which is further modulated in presence of an embryo for successful initiation of pregnancy. Cadherins are the proteins of the junctional complex of which E-cadherin (E-Cad) is crucial for maintaining epithelial cell state and integrity of the epithelial barrier; gain of N-cadherin (N-Cad) in epithelial cells leads to epithelial to mesenchymal transition (EMT). In the present study, we investigated the expression of E-Cad and N-Cad in the mouse endometrial luminal epithelium and its modulation by estrogen, progesterone, and embryonic stimuli. We observed that E-Cad is diffusely expressed in the luminal epithelium of mouse endometrium during the estrus stage and upon estrogen treatment. It is apico-laterally and basolaterally sorted at the diestrus stage and in response to the combined treatment of estrogen and progesterone. In 3D spheroids of human endometrial epithelial cells, combined treatment with estrogen and progesterone led to lateral sorting of E-Cad without any effects on its mRNA levels. at the time of embryo implantation, there is loss of E-Cad along with the gain of N-Cad and SNAIL expression suggestive of EMT in the luminal epithelium. This EMT is possibly driven by embryonic stimuli as treatment with estrogen and progesterone did not lead to the gain of N-Cad expression in the mouse endometrium in vivo or in human endometrial epithelial cells in vitro. In conclusion, the present study demonstrates that steroid hormones directly affect E-Cad sorting in the endometrial epithelium which undergo EMT in response to embryonic stimuli.
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Affiliation(s)
- Abhishek Tiwari
- Molecular and Cellular Biology Laboratory, ICMR-National Institute for Research in Reproductive Health, Indian Council of Medical Research (ICMR), JM Street, Parel, Mumbai, 400012, India
| | - Nancy Ashary
- Molecular and Cellular Biology Laboratory, ICMR-National Institute for Research in Reproductive Health, Indian Council of Medical Research (ICMR), JM Street, Parel, Mumbai, 400012, India
| | - Neha Singh
- Molecular and Cellular Biology Laboratory, ICMR-National Institute for Research in Reproductive Health, Indian Council of Medical Research (ICMR), JM Street, Parel, Mumbai, 400012, India
| | - Shipra Sharma
- Molecular and Cellular Biology Laboratory, ICMR-National Institute for Research in Reproductive Health, Indian Council of Medical Research (ICMR), JM Street, Parel, Mumbai, 400012, India
| | - Deepak Modi
- Molecular and Cellular Biology Laboratory, ICMR-National Institute for Research in Reproductive Health, Indian Council of Medical Research (ICMR), JM Street, Parel, Mumbai, 400012, India.
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10
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Dudley JS, Murphy CR, Thompson MB, McAllan BM. Uterine cellular changes during mammalian pregnancy and the evolution of placentation. Biol Reprod 2021; 105:1381-1400. [PMID: 34514493 DOI: 10.1093/biolre/ioab170] [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: 06/10/2021] [Revised: 08/25/2021] [Accepted: 09/06/2021] [Indexed: 11/14/2022] Open
Abstract
There are many different forms of nutrient provision in viviparous (live bearing) species. The formation of a placenta is one method where the placenta functions to transfer nutrients from mother to fetus (placentotrophy), transfer waste from the fetus to the mother and respiratory gas exchange. Despite having the same overarching function, there are different types of placentation within placentotrophic vertebrates, and many morphological changes occur in the uterus during pregnancy to facilitate formation of the placenta. These changes are regulated in complex ways but are controlled by similar hormonal mechanisms across species. This review describes current knowledge of the morphological and molecular changes to the uterine epithelium preceding implantation among mammals. Our aim is to identify the commonalities and constraints of these cellular changes to understand the evolution of placentation in mammals and propose directions for future research. We compare and discuss the complex modifications to the ultrastructure of uterine epithelial cells and show that there are similarities in the changes to the cytoskeleton and gross morphology of the uterine epithelial cells, especially of the apical and lateral plasma membrane of the cells during the formation of a placenta in all eutherians and marsupials studied to date. We conclude that further research is needed to understand the evolution of placentation among viviparous mammals, particularly concerning the level of placental invasiveness, hormonal control and genetic underpinnings of pregnancy in marsupial taxa.
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Affiliation(s)
- Jessica S Dudley
- School of Life and Environmental Science, University of Sydney, Sydney, NSW 2006, Australia.,School of Medical Sciences and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia.,Department of Biological Sciences, Faculty of Science and Engineering, Macquarie University, NSW, 2109, Australia
| | - Christopher R Murphy
- School of Medical Sciences and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - Michael B Thompson
- School of Life and Environmental Science, University of Sydney, Sydney, NSW 2006, Australia
| | - Bronwyn M McAllan
- School of Life and Environmental Science, University of Sydney, Sydney, NSW 2006, Australia.,School of Medical Sciences and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
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11
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Verma RK, Soni UK, Chadchan SB, Maurya VK, Soni M, Sarkar S, Pratap JV, Jha RK. miR-149-PARP-2 Signaling Regulates E-cadherin and N-cadherin Expression in the Murine Model of Endometrium Receptivity. Reprod Sci 2021; 29:975-992. [PMID: 34460092 DOI: 10.1007/s43032-021-00710-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/30/2021] [Indexed: 10/20/2022]
Abstract
Cadherins play an essential role in the attachment of the blastocyst to the endometrium, a process known as endometrial receptivity. Loss of E-cadherin expression is essential during the process, while the expression level of the other cadherin, N-cadherin, has been reported to be altered in cases of infertility. Both E-cadherin and N-cadherin can be regulated by members of the PARP family. Specifically, PARP-2, which is under the epigenetic control of miR-149, has been observed to promote E-cadherin expression in other human cells. We investigated the roles of E-cadherin and N-cadherin in endometrial receptivity using mouse models for normal endometrial receptivity, pseudopregnancy, and LPS-induced endometrial receptivity failure. E-cadherin and phosphorylated E-cadherin were predominantly expressed during pre-receptive stages as well as in the implantation site of the receptive stage, which were observed reduced during the later stages of implantation in both implantation and non-implantation regions, while N-cadherin was detected only at pre-receptive stages. E-cadherin and N-cadherin were also seen in the uterus during pseudopregnancy, showing a downregulation trend during receptive and post-receptive stages. LPS-induced failed endometrial receptivity showed upregulation of E-cadherin and downregulation of N-cadherin. The E-cadherin expression promoter, GSK-3, was lost and its suppressor, SLUG was upregulated during normal course of endometrial receptivity in mouse model, while GSK-3 was increased during LPS-induced failed embryo implantation. In an in vitro model of embryo implantation, E-cadherin expression is promoted by PARP-2 and regulated by miR-149 epigenetically in human endometrium epithelial cells. In conclusion, E-cadherin is predominantly expressed during pre-receptive stage and promoted by PARP-2, which is regulated by miR-149 in the endometrial epithelial cells.
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Affiliation(s)
- Raj Kumar Verma
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India
| | - Upendra Kumar Soni
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India
| | - Sangappa Basanna Chadchan
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India
| | - Vineet Kumar Maurya
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India
| | - Mohini Soni
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India
| | - Sudarsan Sarkar
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, UP, India
| | - J Venkatesh Pratap
- Biochemistry and Structural Biology Division, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, UP, India
| | - Rajesh Kumar Jha
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, UP, India.
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12
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Yin Y, Haller ME, Chadchan SB, Kommagani R, Ma L. Signaling through retinoic acid receptors is essential for mammalian uterine receptivity and decidualization. JCI Insight 2021; 6:e150254. [PMID: 34292881 PMCID: PMC8492326 DOI: 10.1172/jci.insight.150254] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 07/21/2021] [Indexed: 11/17/2022] Open
Abstract
Retinoic acid (RA) signaling has long been speculated to regulate embryo implantation, because many enzymes and proteins responsible for maintaining RA homeostasis and transducing RA signals are tightly regulated in the endometrium during this critical period. However, due to a lack of genetic data, it was unclear whether RA signaling is truly required for implantation and which specific RA signaling cascades are at play. Herein we utilize a genetic murine model that expresses a dominant-negative form of RA receptor (RAR) specifically in female reproductive organs to show that functional RA signaling is fundamental to female fertility, particularly implantation and decidualization. Reduction in RA signaling activity severely affects the ability of the uterus to achieve receptive status and decidualize, partially through dampening follistatin expression and downstream activin B/bone morphogenetic protein 2 signaling. To confirm translational relevance of these findings to humans, human endometrial stromal cells (hESCs) were treated with a pan-RAR antagonist to show that in vitro decidualization is impaired. RNA interference perturbation of individual RAR transcripts in hESCs revealed that RARα in particular was essential for proper decidualization. These data provide direct functional evidence that uterine RAR-mediated RA signaling was crucial for mammalian embryo implantation, and its disruption led to failure of uterine receptivity and decidualization, resulting in severely compromised fertility.
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Affiliation(s)
- Yan Yin
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, United States of America
| | - Meade E Haller
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, United States of America
| | - Sangappa B Chadchan
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, United States of America
| | - Ramakrishna Kommagani
- Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, United States of America
| | - Liang Ma
- Division of Dermatology, Department of Medicine, Washington University School of Medicine, St. Louis, United States of America
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13
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Xu Q, Yao Q, Huang S, Xu L, Guan H. Effect of Fas/FasL signaling pathway activation in trophoblasts on recurrent spontaneous abortion. J Obstet Gynaecol Res 2021; 47:1978-1986. [PMID: 33723884 DOI: 10.1111/jog.14742] [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: 07/23/2020] [Revised: 01/20/2021] [Accepted: 02/27/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To investigate the expression of Fas/FasL in human villous trophoblast cell HTR8-S/Vneo of patients with recurrent spontaneous abortion (RSA), and to explore the related function and molecular mechanism of Fas/FasL signaling pathway. METHODS The expression levels of FasL, Fas, and E-cadherin in the villous tissues of patients with RSA and those with artificial abortion in normal pregnancy (Normal) were detected by Western blot. CCK-8, flow cytometry, and wound healing were used to detect cell proliferation, apoptosis, and reactive oxygen species (ROS) level, and cell migration ability. Quantitative reverse transcription PCR (RT-qPCR) and Western blot were used to detect the expression of mRNA and protein of Notch1, FasL, Fas, E-cadherin, PKC, Hesl, sFlt-1, VEGF. RESULTS Compared with normal group, the protein expression of FasL, Fas, and E-cadherin in villous tissues of RSA group were increased. HTR-8/SVneo cells in the H/R group had decreased proliferation and migration, increased apoptosis, and up-regulated ROS level compared with the Control group. The activation of Fas/FasL signaling pathway promoted HTR-8/SVneo cell injury in H/R group compared with the Fas/FasL+H/R group. Further RT-qPCR and Western blot experiments revealed that the mRNA and protein expression of Notch1, PKC, and Hesl were decreased in H/R group compared with Control group, while the mRNA and protein expression levels of E-cadherin, sFlt-1, and VEGF were significantly increased. CONCLUSION The activation of Fas/FasL signaling pathway promotes trophoblast apoptosis induced by oxidative stress. This molecular mechanism relates to the inhibition of Notch1 signaling pathway activation, and the up-regulation of E-cadherin, sFlt-1, and VEGF expression.
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Affiliation(s)
- Qiuxia Xu
- Department of Obstetrics, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Qicen Yao
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Sujing Huang
- Department of Obstetrics, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Lin Xu
- Department of Obstetrics, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Hongqiong Guan
- Department of Obstetrics, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
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14
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Expression of E-Cadherin in Pig-Tailed Monkey ( Macaca nemestrina) Endometrium after Controlled Ovarian Hyperstimulation. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8824614. [PMID: 33708995 PMCID: PMC7932768 DOI: 10.1155/2021/8824614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/28/2020] [Accepted: 01/28/2021] [Indexed: 11/17/2022]
Abstract
An increase of steroid hormones in controlled ovarian hyperstimulation (COH) procedures is reducing the success rate in assisted reproductive technology (ART), and this includes the pregnancy rate and/or implantation rate. Research has found that the decrease in the success rate occurred due to the decreased expression of the protein that is needed to prepare the endometrium so that the embryo could attach. The aim of the study was to analyse the changes in E-chaderin expression due to COH and its relations with increased level of steroid hormones as one of the proteins in the endometrium. There were 13 samples of stored biological tissue from Macaca nemestrina endometrial tissue; came from one group of natural cycles as the control group (n = 4) and three groups of stimulated cycles. The first stimulated cycle group was injected by a 30 IU dose of rFSH (n = 2). The second stimulated cycle group was injected by a 50 IU dose of rFSH (n = 4). The third stimulated cycle group was injected by a 70 IU dose of rFSH (n = 3). The expression of E-cadherin was measured by the immunohistochemistry (IHC) technique. Estradiol (E2) and progesterone (P4) levels were assessed using ELISA and have already been done. The IHC staining expression of E-cadherin was found in the cytoplasm of glandular epithelium. Immunostaining measurement used the H_SCORE. We found that the expression of E-cadherin within the group was not significantly different (p value: 0.178). Similarly, both the correlation between the estradiol level with E-cadherin and the correlation between the progesterone level with E-cadherin were not significantly different (p value: 0.872 and p value: 0.836). The conclusion is that the level of E-Cadherin expression in the endometrium that were taken in themiddle secretion phase not affected by the dose regimen that given. In addition, the level of expression is not influenced by the increase of serum E2 and P4 levels.
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15
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Klonos E, Katopodis P, Karteris E, Papanikolaou E, Tarlatzis B, Pados G. Endometrial changes in estrogen and progesterone receptor expression during implantation in an oocyte donation program. Exp Ther Med 2020; 20:178. [PMID: 33101468 PMCID: PMC7579777 DOI: 10.3892/etm.2020.9308] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/15/2020] [Indexed: 12/13/2022] Open
Abstract
Implantation is the final and most important stage of embryogenesis and is of paramount importance in achieving a successful pregnancy. Progesterone and estrogen are steroid hormones responsible for the regulation of the implantation window and the current study hypothesised that their receptors may be implicated in women undergoing oocyte donation. A total of 15 women aged 25-32 years old (mean ± SD, 28.9±2.89) undergoing oocyte donation were recruited into the present study. Participants underwent ovarian stimulation with gonadotrophin-releasing hormone antagonist and recombinant follicle-stimulating hormone. Endometrial aspiration biopsy was performed on the day of oocyte retrieval and after 5 days (on days 0 and 5, respectively). Endometrial histology and evaluation of estrogen receptor (ER)α and progesterone receptor (PR)-B were performed on days 0 and 5. The ER nodal staining percentage on day 0 was age-associated, with patients aged <30 years demonstrating 100% staining and those aged >30 years exhibiting 90% staining. Pathological staining revealed statistically significant differences between days 0 and 5 following all staining procedures. Wilcoxon signed-rank test resulted in the following P-values, for ER (nodes % and stromal %) day 0/5, P=0.0001; for PR (nodes % and stromal %) day 0/5, P=0.0001 and P=0.035, respectively; for ER (grade nodes and stromal %) day 0/5, P=0.0001; and PR (grade nodes and stromal %) day 0/5 P=0.0001 and P=0.016, respectively. Synchronization between blastocyst development and the acquisition of endometrial receptivity is a prerequisite for the success of in vitro fertilisation (IVF). Aside from the recent discovery of molecules that are considered crucial for successful embryo implantation, assessing the functional characteristics of the endometrium may offer unique insights into this process, thus improving IVF results.
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Affiliation(s)
- Eleftherios Klonos
- 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, School of Medicine, Thessaloniki 541 24, Greece
| | - Periklis Katopodis
- Division of Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK
| | - Emmanouil Karteris
- Division of Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK
| | - Evangelos Papanikolaou
- 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, School of Medicine, Thessaloniki 541 24, Greece
| | - Basil Tarlatzis
- Centre for Assisted Reproduction 'Biogenesis', Thessaloniki 555 35, Greece
| | - George Pados
- 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, School of Medicine, Thessaloniki 541 24, Greece.,Centre for Assisted Reproduction 'Biogenesis', Thessaloniki 555 35, Greece
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16
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Huang L, Wang L, Bao H, Xu Y, Meng M, Qiao M, Wang H, Kong S. Traditional Chinese medicine Dingkun Pill facilitates uterine receptivity for implantation in mice†. Biol Reprod 2020; 101:695-703. [PMID: 31347662 DOI: 10.1093/biolre/ioz141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/26/2019] [Accepted: 07/19/2019] [Indexed: 12/12/2022] Open
Abstract
Dingkun Pill (DK) is one of the representative traditional Chinese medicines, which has been used in the treatment of gynecological diseases for hundreds of years. Accumulative observations and evidence have shown the beneficial effects of DK, including enhancing the function of hypothalamic-pituitary-ovarian axis. However, the underlying mechanisms remain elusive. In this study, the effects of DK on uterine receptivity and implantation were explored by a series of studies with different mouse models. The results showed that DK can advance the time of implantation by influencing the expression of estrogen target genes to facilitate embryo implantation. DK was efficient to activate embryo implantation at the presence of suboptimal estrogen in delayed implantation mouse model. Our further study revealed that the improvement of DK on receptivity establishment is attributed to the differential regulation of DK on implantation-associated genes. This study provides previously unappreciated molecular mechanism of DK in embryo implantation and benefits the potential clinical application of DK in human reproduction improvement.
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Affiliation(s)
- Lin Huang
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Lemeng Wang
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Haili Bao
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Yingchun Xu
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Meiqing Meng
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Manting Qiao
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Haibin Wang
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
| | - Shuangbo Kong
- Reproductive Medical Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Reproductive Health Research, School of Medicine, Xiamen University, Xiamen, Fujian, People's Republic of China
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17
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Adrenomedullin insufficiency alters macrophage activities in fallopian tube: a pathophysiologic explanation of tubal ectopic pregnancy. Mucosal Immunol 2020; 13:743-752. [PMID: 32203061 DOI: 10.1038/s41385-020-0278-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 02/04/2020] [Accepted: 02/21/2020] [Indexed: 02/04/2023]
Abstract
Ectopic pregnancy is the major cause of maternal morbidity and mortality in the first trimester of pregnancy. Tubal ectopic pregnancy (TEP) accounts for nearly 98% of all ectopic pregnancies. TEP is usually associated with salpingitis but the underlying mechanism in salpingitis leading to TEP remains unclear. Adrenomedullin (ADM) is a peptide hormone abundantly expressed in the fallopian tube with potent anti-inflammatory activities. Its expression peaks at the early luteal phase when the developing embryo is being transported through the fallopian tube. In the present study, we demonstrated reduced expression of ADM in fallopian tubes of patients with salpingitis and TEP. Using macrophages isolated from the fallopian tubes of these women, our data revealed that the salpingistis-associated ADM reduction contributed to aggravated pro-inflammatory responses of the tubal macrophages resulting in production of pro-inflammatory and pro-implantation cytokines IL-6 and IL-8. These cytokines activated the expression of implantation-associated molecules and Wnt signaling pathway predisposing the tubal epithelium to an adhesive and receptive state for embryo implantation. In conclusion, this study provided evidence for the role of ADM in the pathogenesis of TEP through regulating the functions of tubal macrophages.
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18
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Kakar-Bhanot R, Brahmbhatt K, Chauhan B, Katkam RR, Bashir T, Gawde H, Mayadeo N, Chaudhari UK, Sachdeva G. Rab11a drives adhesion molecules to the surface of endometrial epithelial cells. Hum Reprod 2020; 34:519-529. [PMID: 30597006 DOI: 10.1093/humrep/dey365] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 10/11/2018] [Accepted: 11/24/2018] [Indexed: 12/21/2022] Open
Abstract
STUDY QUESTION Is Rab11a GTPase, a regulator of intracellular trafficking, of significance in endometrial functions? SUMMARY ANSWER Rab11a is an important component of the cascades involved in equipping the endometrial epithelium (EE) with 'adhesiveness' and 'cohesiveness'. WHAT IS KNOWN ALREADY Cell adhesion molecules (CAMs) have been investigated extensively for modulation in their endometrial expression during the peri-implantation phase. However, the mechanisms by which CAMs are transported to the EE surface have not received the same attention. Rab11a facilitates transport of specific proteins to the plasma membrane in endothelial cells, fibroblasts, embryonic ectodermal cells, etc. However, its role in the transport of CAMs in EE remains unexplored. STUDY DESIGN, SIZE, DURATION In-vitro investigations were directed towards deciphering the role of Rab11a in trafficking of CAMs (integrins and E-cadherin) to the cell surface of Ishikawa, an EE cell line. Towards this, Rab11a stable knockdown (Rab-kd) and control clones of Ishikawa were generated. JAr (human trophoblastic cell line) cells were used to form multicellular spheroids. Pre-receptive (n = 6) and receptive (n = 6) phase endometrial tissues from women with proven fertility and receptive phase (n = 6) endometrial tissues from women with unexplained infertility were used. PARTICIPANTS/MATERIALS, SETTING, METHODS Rab-kd and control clones were used for in-vitro assays. Live cells were used for biotinylation, JAr spheroid assays, flow cytometry, trans-epithelial electrical resistance assays and wound-healing assays. Lysosome and Golgi membranes were isolated by ultracentrifugation. Confocal microscopy, immunoblotting, qRT-PCR and immunohistochemistry were employed for assessing the expression of Rab11a, integrins and E-cadherin. MAIN RESULTS AND THE ROLE OF CHANCE shRNA-mediated attenuation of Rab11a expression led to a significant (P < 0.01) decline in the surface localization of αVβ3 integrin. Cell surface protein extracts of Rab-kd clones showed a significant (P < 0.05) reduction in the levels of αV integrin. Further, a significant (P < 0.01) decrease was observed in the percent JAr spheroids attached to Rab-kd clones, compared to control clones. Rab-kd clones also showed a significant (P < 0.001) decline in the total levels of E-cadherin. This was caused neither by reduced transcription nor by increased lysosomal degradation. The role of Rab11a in maintaining the epithelial nature of the cells was evident by a significant increase in the migratory potential, presence of stress-fibres and a decrease in the trans-epithelial resistance in Rab-kd monolayers. Further, the levels of endometrial Rab11a and E-cadherin in the receptive phase were found to be significantly (P < 0.05) lower in women with unexplained infertility compared to that in fertile women. Taken together, these observations hint at a key role of Rab11a in the trafficking of αVβ3 integrin and maintenance of E-cadherin levels at the surface of EE cells. LARGE-SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The in-vitro setting of the study is a limitation. Further immunohistochemical localizations of Rab11a and CAMs were conducted on a limited number of human endometrial samples. WIDER IMPLICATIONS OF THE FINDINGS Rab11a-mediated trafficking of endometrial CAMs in EE cells can be explored further for its potential as a target for fertility regulation or infertility management. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the Indian Council of Medical Research (ICMR), the Department of Science and Technology (DST), the Council of Scientific and Industrial Research (CSIR), Government of India. No competing interests are declared.
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Affiliation(s)
- Ruchi Kakar-Bhanot
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - Krupanshi Brahmbhatt
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - Bhagyashree Chauhan
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - R R Katkam
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - T Bashir
- Molecular Immunology and Microbiology Laboratory, ICMR-NIRRH, Mumbai, India
| | - H Gawde
- Genetic Research Centre, ICMR-NIRRH, Mumbai, India
| | - N Mayadeo
- Department of Gynecology and Obstetrics, Seth G.S. Medical College and King Edward Memorial Hospital, Parel, Mumbai, India
| | - U K Chaudhari
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
| | - Geetanjali Sachdeva
- Primate Biology Laboratory, Indian Council of Medical Research-National Institute for Research in Reproductive Health (ICMR-NIRRH), Mumbai, India
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19
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Jhamat N, Niazi A, Guo Y, Chanrot M, Ivanova E, Kelsey G, Bongcam-Rudloff E, Andersson G, Humblot P. LPS-treatment of bovine endometrial epithelial cells causes differential DNA methylation of genes associated with inflammation and endometrial function. BMC Genomics 2020; 21:385. [PMID: 32493210 PMCID: PMC7268755 DOI: 10.1186/s12864-020-06777-7] [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: 01/19/2020] [Accepted: 05/10/2020] [Indexed: 12/18/2022] Open
Abstract
Background Lipopolysaccharide (LPS) endotoxin stimulates pro-inflammatory pathways and is a key player in the pathological mechanisms involved in the development of endometritis. This study aimed to investigate LPS-induced DNA methylation changes in bovine endometrial epithelial cells (bEECs), which may affect endometrial function. Following in vitro culture, bEECs from three cows were either untreated (0) or exposed to 2 and 8 μg/mL LPS for 24 h. Results DNA samples extracted at 0 h and 24 h were sequenced using reduced representation bisulfite sequencing (RRBS). When comparing DNA methylation results at 24 h to time 0 h, a larger proportion of hypomethylated regions were identified in the LPS-treated groups, whereas the trend was opposite in controls. When comparing LPS groups to controls at 24 h, a total of 1291 differentially methylated regions (DMRs) were identified (55% hypomethylated and 45% hypermethylated). Integration of DNA methylation data obtained here with our previously published gene expression data obtained from the same samples showed a negative correlation (r = − 0.41 for gene promoter, r = − 0.22 for gene body regions, p < 0.05). Differential methylation analysis revealed that effects of LPS treatment were associated with methylation changes for genes involved in regulation of immune and inflammatory responses, cell adhesion, and external stimuli. Gene ontology and pathway analyses showed that most of the differentially methylated genes (DMGs) were associated with cell proliferation and apoptotic processes; and pathways such as calcium-, oxytocin- and MAPK-signaling pathways with recognized roles in innate immunity. Several DMGs were related to systemic inflammation and tissue re-modelling including HDAC4, IRAK1, AKT1, MAP3K6, Wnt7A and ADAMTS17. Conclusions The present results show that LPS altered the DNA methylation patterns of bovine endometrial epithelial cells. This information, combined with our previously reported changes in gene expression related to endometrial function, confirm that LPS activates pro-inflammatory mechanisms leading to perturbed immune balance and cell adhesion processes in the endometrium.
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Affiliation(s)
- Naveed Jhamat
- Department of Animal Breeding and Genetics, Section of Molecular Genetics, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,SLU-Global Bioinformatics Centre, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,Department of Information Technology, University of the Punjab, Gujranwala Campus, Gujranwala, Pakistan
| | - Adnan Niazi
- Department of Animal Breeding and Genetics, Section of Molecular Genetics, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden. .,SLU-Global Bioinformatics Centre, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.
| | - Yongzhi Guo
- Department of Clinical Sciences, Division of Reproduction, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden
| | - Metasu Chanrot
- Department of Clinical Sciences, Division of Reproduction, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,Faculty of Veterinary Science, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat, 802 40, Thailand
| | - Elena Ivanova
- Epigenetics Programme, The Babraham Institute, Cambridge, UK
| | - Gavin Kelsey
- Epigenetics Programme, The Babraham Institute, Cambridge, UK.,Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Erik Bongcam-Rudloff
- Department of Animal Breeding and Genetics, Section of Molecular Genetics, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,SLU-Global Bioinformatics Centre, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden
| | - Göran Andersson
- Department of Animal Breeding and Genetics, Section of Molecular Genetics, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden.,Centre for Reproductive Biology in Uppsala, CRU, P.O. Box 7054, 750 07, Uppsala, Sweden
| | - Patrice Humblot
- Department of Clinical Sciences, Division of Reproduction, Swedish University of Agricultural Sciences, Uppsala, 750 07, Sweden
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20
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Dudley JS, Murphy CR, Thompson MB, Lindsay LA, McAllan BM. Sex steroids influence the plasma membrane transformation in the uterus of the fat-tailed dunnart (Sminthopsis crassicaudata, Marsupialia). Reprod Fertil Dev 2019; 31:633-644. [PMID: 30449299 DOI: 10.1071/rd18202] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 10/03/2018] [Indexed: 12/11/2022] Open
Abstract
The uterine epithelium undergoes remodelling to become receptive to blastocyst implantation during pregnancy in a process known as the plasma membrane transformation. There are commonalities in ultrastructural changes to the epithelium, which, in eutherian, pregnancies are controlled by maternal hormones, progesterone and oestrogens. The aim of this study was to determine the effects that sex steroids have on the uterine epithelium in the fat-tailed dunnart Sminthopsis crassicaudata, the first such study in a marsupial. Females were exposed to exogenous hormones while they were reproductively quiescent, thus not producing physiological concentrations of ovarian hormones. We found that changes to the protein E-cadherin, which forms part of the adherens junction, are controlled by progesterone and that changes to the desmoglein-2 protein, which forms part of desmosomes, are controlled by 17β-oestradiol. Exposure to a combination of progesterone and 17β-oestradiol causes changes to the microvilli on the apical surface and to the ultrastructure of the uterine epithelium. There is a decrease in lateral adhesion when the uterus is exposed to progesterone and 17β-oestradiol that mimics the hormone environment of uterine receptivity. We conclude that uterine receptivity and the plasma membrane transformation in marsupial and eutherian pregnancies are under the same endocrine control and may be an ancestral feature of therian mammals.
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Affiliation(s)
- Jessica S Dudley
- School of Medical Sciences and Bosch Institute, Anderson Stuart Building (F13), University of Sydney, Sydney, NSW 2006, Australia
| | - Christopher R Murphy
- School of Medical Sciences and Bosch Institute, Anderson Stuart Building (F13), University of Sydney, Sydney, NSW 2006, Australia
| | - Michael B Thompson
- School of Life and Environmental Science, Heydon-Laurence Building (A08), University of Sydney, Sydney, NSW 2006, Australia
| | - Laura A Lindsay
- School of Medical Sciences and Bosch Institute, Anderson Stuart Building (F13), University of Sydney, Sydney, NSW 2006, Australia
| | - Bronwyn M McAllan
- School of Medical Sciences and Bosch Institute, Anderson Stuart Building (F13), University of Sydney, Sydney, NSW 2006, Australia
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21
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Bellati F, Costanzi F, De Marco MP, Cippitelli C, Stoppacciaro A, De Angelis C, Ruscito I, Rago R, Caserta D. Low endometrial beta-catenin and cadherins expression patterns are predictive for primary infertility and recurrent pregnancy loss. Gynecol Endocrinol 2019; 35:727-731. [PMID: 30806528 DOI: 10.1080/09513590.2019.1579790] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Inadequate uterine receptivity is responsible for two-third of implanting failures. Aim of the study was to investigate the role of epithelial adherence and tight-junction molecules expressed by human endometrium in predicting womens' fertility outcome. A total of 76 consecutive women, including 24 fertile (G1), 40 primary infertile (G2), and 12 recurrent pregnancy loss (RPL, G3) women, who underwent diagnostic hysteroscopy plus endometrial biopsy between 2005 and 2016 at the Gynecology Division of Sant'Andrea Hospital, Sapienza University of Rome, in Italy, were retrospectively identified and included into the study. Endometrial biopsies were assessed for the immunohistochemical expression of beta-catenin (β-catenin), E-cadherin and K-cadherin biomarkers. Expression profiles were compared between the three groups of patients and were correlated with patients' fertility outcome. In infertile patients there was a significant lower endometrial expression of β-catenin (p = .001), E-cadherin (p = .001) and K-cadherin (p = .002), compared to the fertile ones. Furthermore, β-catenin and E-cadherin intensity gradients of expression at glandular level were found totally reversed in infertile patients. Significant lower expression levels of K-catenin (p = .016) and E-cadherin (p < .0001) at glandular level were found in RPL patients. Results showed that the low endometrial expression of β-catenin, E-cadherin and K-cadherin were associated to fertility-related problems, such as primary intertility and RPL.
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Affiliation(s)
- Filippo Bellati
- a Department of Surgical and Medical Sciences and Translational Medicine , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
| | - Flavia Costanzi
- a Department of Surgical and Medical Sciences and Translational Medicine , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
| | - Maria Paola De Marco
- a Department of Surgical and Medical Sciences and Translational Medicine , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
| | - Claudia Cippitelli
- b Department of Clinical and Molecular Medicine, Surgical Pathology Units , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
| | - Antonella Stoppacciaro
- b Department of Clinical and Molecular Medicine, Surgical Pathology Units , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
| | - Carlo De Angelis
- a Department of Surgical and Medical Sciences and Translational Medicine , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
| | - Ilary Ruscito
- c Department of Gynecology, European Competence Center for Ovarian Cancer , Campus Virchow Klinikum, Charité - Universitätsmedizin Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health , Berlin , Germany
- d Department of Experimental Medicine, Cell Therapy Unit and Laboratory of Tumor Immunology , Sapienza University of Rome , Rome , Italy
| | - Rocco Rago
- e Unit of Reproductive Physiopathology and Andrology , Sandro Pertini Hospital , Rome , Italy
| | - Donatella Caserta
- a Department of Surgical and Medical Sciences and Translational Medicine , Sapienza University of Rome, Sant'Andrea University Hospital , Rome , Italy
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22
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Chen JJ, Xiao ZJ, Meng X, Wang Y, Yu MK, Huang WQ, Sun X, Chen H, Duan YG, Jiang X, Wong MP, Chan HC, Zou F, Ruan YC. MRP4 sustains Wnt/β-catenin signaling for pregnancy, endometriosis and endometrial cancer. Am J Cancer Res 2019; 9:5049-5064. [PMID: 31410201 PMCID: PMC6691374 DOI: 10.7150/thno.32097] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Accepted: 05/08/2019] [Indexed: 12/13/2022] Open
Abstract
Rationale: Abnormal Wnt/β-catenin signaling in the endometrium can lead to both embryo implantation failure and severe pathogenic changes of the endometrium such as endometrial cancer and endometriosis. However, how Wnt/β-catenin signaling is regulated in the endometrium remains elusive. We explored possible regulation of Wnt/β-catenin signaling by multi-drug resistance protein 4 (MRP4), a potential target in cancer chemotherapy, and investigated the mechanism. Methods: Knockdown of MRP4 was performed in human endometrial cells in vitro or in a mouse embryo-implantation model in vivo. Immunoprecipitation, immunoblotting and immunofluorescence were used to assess protein interaction and stability. Wnt/β-catenin signaling was assessed by TOPflash reporter assay and quantitative PCR array. Normal and endometriotic human endometrial tissues were examined. Data from human microarray or RNAseq databases of more than 100 participants with endometriosis, endometrial cancer or IVF were analyzed. In vitro and in vivo tumorigenesis was performed. Results: MRP4-knockdown, but not its transporter-function-inhibition, accelerates β-catenin degradation in human endometrial cells. MRP4 and β-catenin are co-localized and co-immunoprecipitated in mouse and human endometrium. MRP4-knockdown in mouse uterus reduces β-catenin levels, downregulates a series of Wnt/β-catenin target genes and impairs embryo implantation, which are all reversed by blocking β-catenin degradation. Analysis of human endometrial biopsy samples and available databases reveals significant and positive correlations of MRP4 with β-catenin and Wnt/β-catenin target genes in the receptive endometrium in IVF, ectopic endometriotic lesions and endometrial cancers. Knockdown of MRP4 also inhibits in vitro and in vivo endometrial tumorigenesis. Conclusion: A previously undefined role of MRP4 in stabilizing β-catenin to sustain Wnt/β-catenin signaling in endometrial cells is revealed for both embryo implantation and endometrial disorders, suggesting MRP4 as a theranostic target for endometrial diseases associated with Wnt/β-catenin signaling abnormality.
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23
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Martínez-Peña AA, Peña-Castillo A, Parra-Forero LY, Hernández-Ochoa I, Hernández-Barrientos LR, Morimoto S, Mendoza-Rodríguez CA. Parental perinatal exposure to bisphenol A reduces the threshold to disrupt blastocyst implantation via decreasing talin, occudin and E-cadherin levels. Reprod Toxicol 2019; 86:86-97. [PMID: 31028817 DOI: 10.1016/j.reprotox.2019.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 04/06/2019] [Accepted: 04/22/2019] [Indexed: 11/29/2022]
Abstract
The aim was to evaluate the effect of perinatal BPA exposure of one or both parents on the implantation index and expression of talin, occludin and E-cadherin in the uterine epithelial cells (UEC) of the offspring. Pregnant Wistar dams (F0) received BPA or vehicle from gestational day (GD) 6 to lactation day 21. F1 animals were mated forming four groups: Control dam-Control sire (C♀-C♂), BPA dam -Control sire (B♀-C♂), Control dam -BPA sire (C♀-B♂), BPA dam -BPA sire (B♀-B♂). F1 dams were sacrificed at GD 6. Significantly decreased number of implantation sites was observed in the B♀-B♂ group as compared to the C♀-C♂ group, which correlated with decreased talin apical/basal expression ratio, occludin apical expression, and E-cadherin apical/lateral expression ratio in the UEC. Furthermore, decreased E-cadherin expression in the blastocyst was observed. Our data suggest that reduced protein expressions in F1 BPA offspring could result from decreased progesterone serum levels.
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Affiliation(s)
- Annia A Martínez-Peña
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - Andrea Peña-Castillo
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - L Yuliana Parra-Forero
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Ciudad de México 07360, Mexico
| | - Isabel Hernández-Ochoa
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (Cinvestav), Ciudad de México 07360, Mexico
| | - Luis R Hernández-Barrientos
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico
| | - Sumiko Morimoto
- Instituto Nacional de Ciencias Médicas y de la Nutrición Salvador Zubirán, Ciudad de Mexico 14080, Mexico
| | - C Adriana Mendoza-Rodríguez
- Facultad de Química, Departamento de Biología, Universidad Nacional Autónoma de México, Ciudad de Mexico 04510, Mexico.
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24
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Li S, Liu J, Kong F, Wang Y, Li N, Zou Y. lncRNA GHET1 has effects in development of pre-eclampsia. J Cell Biochem 2019; 120:12647-12652. [PMID: 30861585 DOI: 10.1002/jcb.28531] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/01/2019] [Accepted: 02/01/2019] [Indexed: 02/01/2023]
Abstract
To explain long noncoding RNA (lncRNA) gastric carcinoma high expressed transcript 1 (GHET1) affects the mechanism in development of pre-eclampsia. The pathological changes of normal, mild, and severe pre-eclampsia were evaluated by hematoxylin and eosin staining and measured the lncRNA GHET1 expression in different tissues by reverse-transcription polymerase chain reaction. In the cell experiment, the BeWo cells were randomly divided into three groups: normal control (NC) group, model group, and lncRNA group. The JEG3 cells of the model and lncRNA groups were cultured in the hypoxia condition. The JEG3 cells invasion and migration abilities were measured by Tanswell and wound-healing assays. The relative protein expressions of different groups were evaluated by Western blot (WB) assay. Compared with normal puerperal, the lncRNA GHET1 gene expression of pre-eclampsia was significantly downregulated (P < 0.05, respectively). In the cell experiment, the invasion cell number and wound-healing rate of the model group were significantly suppressed compared with the NC group (P < 0.05, respectively). However, the invasion cell number and wound-healing rate of lncRNA group were enhanced by lncRNA GHET1 overexpression (P < 0.05, respectively). In WB assay, the E-cadherin, fibronectin, and vimentin proteins expression showed significant differences between the model and lncRNA groups (P < 0.05, respectively). lncRNA GHET1 overexpression had restored cell invasion and migration abilities reduced by hypoxia in pre-eclampsia.
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Affiliation(s)
- Shuhong Li
- Departments of Obstetrics and Gynecology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Jie Liu
- Departments of Obstetrics and Gynecology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Fanqiang Kong
- Departments of Emergency, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Yuanli Wang
- Departments of Obstetrics and Gynecology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Ning Li
- Departments of Central Laboratory, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Yanfen Zou
- Departments of Obstetrics and Gynecology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
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25
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Dudley JS, Murphy CR, Thompson MB, Carter T, McAllan BM. Uterine Epithelial Cells Undergo a Plasma Membrane Transformation During Early Pregnancy in the Domestic Cat (Felis catus
). Anat Rec (Hoboken) 2018; 301:1497-1505. [DOI: 10.1002/ar.23895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/28/2018] [Accepted: 05/22/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Jessica S. Dudley
- School of Medical Sciences and Bosch Institute; University of Sydney; Sydney New South Wales Australia
| | - Christopher R. Murphy
- School of Medical Sciences and Bosch Institute; University of Sydney; Sydney New South Wales Australia
| | - Michael B. Thompson
- School of Life and Environmental Science; University of Sydney; Sydney New South Wales Australia
| | - Tanya Carter
- Haberfield Veterinary Hospital; Sydney New South Wales Australia
| | - Bronwyn M. McAllan
- School of Medical Sciences and Bosch Institute; University of Sydney; Sydney New South Wales Australia
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26
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Mohan JJ, Narayan P, Padmanabhan RA, Joseph S, Kumar PG, Laloraya M. Silencing of dedicator of cytokinesis (DOCK180) obliterates pregnancy by interfering with decidualization due to blockage of nuclear entry of autoimmune regulator (AIRE). Am J Reprod Immunol 2018; 80:e12844. [PMID: 29516628 DOI: 10.1111/aji.12844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 02/13/2018] [Indexed: 12/26/2022] Open
Abstract
PROBLEM Dedicator of cytokinesis (DOCK 180) involved in cytoskeletal reorganization is primarily a cytosolic molecule. It is recently shown to be nuclear in HeLa cells but its nuclear function is not known. METHOD OF STUDY The spatiotemporal distribution of DOCK180 in uterus was studied in uterine cytoplasmic and nuclear compartments during the "window of implantation." The functional significance of nuclear DOCK180 was explored by homology modeling, co-immunoprecipitation assays, and mass spectrometric analysis. Dock180's role in early pregnancy was ascertained by Dock 180 silencing and subsequent quantitative real-time PCR and Western blotting analysis. RESULTS Our study shows a nuclear DOCK180 in the uterus during "window of implantation." Estrogen and progesterone mediate expression and nuclear translocation of DOCK180. The nuclear function of DOCK180 is attributed to its ability to import autoimmune regulator (AIRE) into the nucleus. Silencing of Dock180 inhibited AIRE nuclear shuttling which influenced its downstream targets, thereby affecting decidualization with AIRE and HOXA-10 as the major players as well as lack of implantation site formation due to impact on angiogenesis-associated genes. CONCLUSION DOCK180 has an indispensable role in pregnancy establishment as knocking down Dock180 abrogates pregnancy by a consolidated impact on decidualization and angiogenesis by regulating AIRE nuclear entry.
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Affiliation(s)
- Jasna Jagan Mohan
- Female Reproduction and Metabolic Syndromes Laboratory, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Prashanth Narayan
- Female Reproduction and Metabolic Syndromes Laboratory, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Renjini Ambika Padmanabhan
- Female Reproduction and Metabolic Syndromes Laboratory, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Selin Joseph
- Female Reproduction and Metabolic Syndromes Laboratory, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Pradeep G Kumar
- Female Reproduction and Metabolic Syndromes Laboratory, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Malini Laloraya
- Female Reproduction and Metabolic Syndromes Laboratory, Division of Molecular Reproduction, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
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27
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Shukla V, Popli P, Kaushal JB, Gupta K, Dwivedi A. Uterine TPPP3 plays important role in embryo implantation via modulation of β-catenin†. Biol Reprod 2018; 99:982-999. [DOI: 10.1093/biolre/ioy136] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 06/11/2018] [Indexed: 12/22/2022] Open
Affiliation(s)
- Vinay Shukla
- Division of Endocrinology, CSIR- Central Drug Research Institute, Lucknow-226031, UP, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CDRI Campus, Lucknow, India
| | - Pooja Popli
- Division of Endocrinology, CSIR- Central Drug Research Institute, Lucknow-226031, UP, India
| | - Jyoti Bala Kaushal
- Division of Endocrinology, CSIR- Central Drug Research Institute, Lucknow-226031, UP, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CDRI Campus, Lucknow, India
| | - Kanchan Gupta
- Division of Endocrinology, CSIR- Central Drug Research Institute, Lucknow-226031, UP, India
| | - Anila Dwivedi
- Division of Endocrinology, CSIR- Central Drug Research Institute, Lucknow-226031, UP, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-CDRI Campus, Lucknow, India
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Ashary N, Tiwari A, Modi D. Embryo Implantation: War in Times of Love. Endocrinology 2018; 159:1188-1198. [PMID: 29319820 DOI: 10.1210/en.2017-03082] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 12/29/2017] [Indexed: 12/22/2022]
Abstract
Contrary to widespread belief, the implantation of an embryo for the initiation of pregnancy is like a battle, in that the embryo uses a variety of coercive tactics to force its acceptance by the endometrium. We propose that embryo implantation involves a three-step process: (1) identification of a receptive endometrium; (2) superimposition of a blastocyst-derived signature onto the receptive endometrium before implantation; and finally (3) breaching by the embryo and trophoblast invasion, culminating in decidualization and placentation. We review here the story that is beginning to emerge, focusing primarily on the cells that are in "combat" during this process.
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Affiliation(s)
- Nancy Ashary
- Molecular and Cellular Biology Laboratory, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Abhishek Tiwari
- Molecular and Cellular Biology Laboratory, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
| | - Deepak Modi
- Molecular and Cellular Biology Laboratory, National Institute for Research in Reproductive Health, Indian Council of Medical Research, Mumbai, India
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Latifi Z, Fattahi A, Ranjbaran A, Nejabati HR, Imakawa K. Potential roles of metalloproteinases of endometrium-derived exosomes in embryo-maternal crosstalk during implantation. J Cell Physiol 2017; 233:4530-4545. [PMID: 29115666 DOI: 10.1002/jcp.26259] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/09/2017] [Indexed: 12/15/2022]
Abstract
During embryo implantation, crosstalk between the endometrial epithelium and the blastocyst, especially the trophoblasts, is a prerequisite for successful implantation. During this crosstalk, various molecular and functional changes occur to promote synchrony between the embryo and the endometrium as well as the uterine cavity microenvironment. In the past few years, growing evidence has shown that endometrium-derived exosomes play pivotal roles in the embryonic-maternal crosstalk during implantation, although the exact mechanism of this crosstalk has yet to be determined. The presence of metalloproteinases has been reported in endometrium-derived exosomes, implying the importance of these enzymes in exosome-based crosstalk. Thus, in this review, we describe the potential roles of the metalloproteinases of endometrium-derived exosomes in promoting embryo attachment and implantation. This study could provide a better understanding of the potential roles of exosomal metalloproteinases in embryo implantation and pave the way for developing novel exosome-based regulatory agents to support early pregnancy.
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Affiliation(s)
- Zeinab Latifi
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, Japan.,Stem Cell and Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Fattahi
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Ranjbaran
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Reza Nejabati
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kazuhiko Imakawa
- Animal Resource Science Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Ibaraki, Japan
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Shahzad H, Giribabu N, Karim K, Kassim N, Muniandy S, Kumar KE, Salleh N. Quercetin interferes with the fluid volume and receptivity development of the uterus in rats during the peri-implantation period. Reprod Toxicol 2017; 71:42-54. [DOI: 10.1016/j.reprotox.2017.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 04/10/2017] [Accepted: 04/13/2017] [Indexed: 02/07/2023]
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Borman ED, Foster WG, deCatanzaro D. Concurrent administration of diethylhexyl phthalate reduces the threshold dose at which bisphenol A disrupts blastocyst implantation and cadherins in mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 49:105-111. [PMID: 27984777 DOI: 10.1016/j.etap.2016.12.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 12/06/2016] [Accepted: 12/08/2016] [Indexed: 06/06/2023]
Abstract
Many people are repeatedly exposed to both bisphenol A (BPA) and diethylhexyl phthalate (DEHP), but there has been little research concerning their effects in combination. Both can disrupt blastocyst implantation in inseminated females, albeit at high doses. We exposed mice on gestation days (GD) 1-4 to combinations of BPA and DEHP in doses below the threshold necessary to disrupt implantation on their own. On GD 6, there were fewer normally-developed implantation sites and more underdeveloped implantation sites in females given the combined subthreshold doses. Uterine epithelial cadherin (e-cadherin), a protein that assists in blastocyst adhesion to the uterine epithelium, was significantly reduced by these combined doses, but not by the individual doses. A similar trend was seen in integrin αvβ3, another uterine adhesion molecule. Cadherin-11 was disrupted by BPA but not DEHP. These data are consistent with competition of BPA and DEHP for conjugating enzymes.
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Affiliation(s)
- Evan D Borman
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Warren G Foster
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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Yang Y, Chen X, Saravelos SH, Liu Y, Huang J, Zhang J, Li TC. HOXA-10 and E-cadherin expression in the endometrium of women with recurrent implantation failure and recurrent miscarriage. Fertil Steril 2016; 107:136-143.e2. [PMID: 27793380 DOI: 10.1016/j.fertnstert.2016.09.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 08/15/2016] [Accepted: 09/09/2016] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To compare the expression of HOXA-10 and E-cadherin in the endometrium of women with recurrent implantation failure (RIF), women with recurrent miscarriage (RM), and women with proven fertility (normal control; NC). DESIGN Observational cohort study. SETTING University assisted reproductive unit. PATIENT(S) Fifty women were recruited: 18 NC, 12 unexplained RIF, and 20 RM. INTERVENTIONS(S) None. MAIN OUTCOME MEASURE(S) Endometrial biopsy was precisely timed 7 days after LH surge. The expression of HOXA-10 and E-cadherin were examined by means of immunohistochemistry. H-Scores of staining intensity in the glandular epithelium and stroma were measured. RESULT(S) HOXA-10 signal was mainly localized in the nuclei of stroma cells and the cytoplasm of glandular epithelium cells. E-Cadherin signal was found only in the cytoplasm of glandular epithelium cells. The HOXA-10 H-scores in the RIF group and the RM group were significantly lower than in the control group in both the glandular epithelium and stroma. The E-cadherin H-scores in the RM group were also significantly lower than in the control group. Interestingly, there was a positive correlation between HOXA-10 and E-cadherin H-scores in all of the women examined. CONCLUSION(S) There is a positive correlation between levels of HOXA-10 and E-cadherin expression in the endometrium, both of which are significantly reduced in women with RIF and RM compared with fertile control women. The findings suggest a potential role of HOXA-10 and E-cadherin in the implantation processes and altered expression in women with reproductive failure.
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Affiliation(s)
- Yihua Yang
- Center of Reproductive Medicine, Affiliated Hospital of Guilin Medical College, Guilin, People's Republic of China
| | - Xiaoyan Chen
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong
| | - Sotirios H Saravelos
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong
| | - Yingyu Liu
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong
| | - Jin Huang
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong.
| | - Jiamiao Zhang
- Center of Reproductive Medicine, Affiliated Hospital of Guilin Medical College, Guilin, People's Republic of China
| | - Tin Chiu Li
- Assisted Reproductive Technology Unit, Department of Obstetrics and Gynaecology, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong
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Payan-Carreira R, Pires M, Santos C, Holst BS, Colaço J, Rodriguez-Martinez H. Immunolocalization of E-cadherin and β-catenin in the cyclic and early pregnant canine endometrium. Theriogenology 2016; 86:1092-1101. [DOI: 10.1016/j.theriogenology.2016.03.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 03/30/2016] [Accepted: 03/31/2016] [Indexed: 12/29/2022]
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Yu L, Hu R, Sullivan C, Swanson RJ, Oehninger S, Sun YP, Bocca S. MFGE8 regulates TGF-β-induced epithelial mesenchymal transition in endometrial epithelial cells in vitro. Reproduction 2016; 152:225-33. [PMID: 27340235 DOI: 10.1530/rep-15-0585] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 06/17/2016] [Indexed: 12/28/2022]
Abstract
This study investigated the role of milk fat globule-epidermal growth factor-factor 8 (MFGE8) in TGF-β-induced epithelial-mesenchymal transition (EMT) of endometrial epithelial cells. These were in vitro studies using human endometrial epithelial cells and mouse blastocysts. We investigated the ability of TGF-β to induce EMT in endometrial epithelial cells (HEC-1A) by assessment of cytological phenotype (by light and atomic force microscopy), changes in expression of the markers of cell adhesion/differentiation E- and N-cadherin, and of the transcription factor Snail (by immunofluorescence and immunoblotting), and competence to support embryo attachment in a mouse blastocyst outgrowth assay. We also studied the effects of E-cadherin expression in cells transfected by retroviral shRNA vectors specifically silencing MFGE8. Results demonstrated that TGF-β induced EMT as demonstrated by phenotypic cell changes, by a switch of cadherin expression as well as by upregulation of the expression of the mesenchymal markers Snail and Vimentin. Upon MFGE8 knockdown, these processes were interfered with, suggesting that MFGE8 and TGF-β together may participate in regulation of EMT. This study demonstrated for the first time that endometrial MFGE8 modulates TGF-β-induced EMT in human endometrium cells.
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Affiliation(s)
- Liang Yu
- The Jones Institute for Reproductive MedicineDepartment of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia, USA Reproductive Medical CenterThe First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Rong Hu
- Reproductive Medicine CenterKey Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Claretta Sullivan
- Department of SurgeryEastern Virginia Medical School, Norfolk, Virginia, USA
| | - R James Swanson
- Department of Biological SciencesOld Dominion University, Norfolk, Virginia, USA
| | - Sergio Oehninger
- The Jones Institute for Reproductive MedicineDepartment of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - Ying-Pu Sun
- Reproductive Medical CenterThe First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Silvina Bocca
- The Jones Institute for Reproductive MedicineDepartment of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, Virginia, USA
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Chadchan SB, Kumar V, Maurya VK, Soni UK, Jha RK. Endoglin (CD105) coordinates the process of endometrial receptivity for embryo implantation. Mol Cell Endocrinol 2016; 425:69-83. [PMID: 26802878 DOI: 10.1016/j.mce.2016.01.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 01/16/2016] [Accepted: 01/18/2016] [Indexed: 10/22/2022]
Abstract
Endoglin is a TGF-β receptor that is expressed in uterine endothelial and stromal cells in addition to trophoblast expression. However, the functional importance of endoglin in the embryo implantation process is not clear. We observed endoglin expression in the endometrium throughout the stages of its receptivity; however, its expression was enhanced during the receptive stage. Endoglin expression was predominant in epithelial cells of the lumen and glands, but showed a milder expression in stromal cells. Endoglin expression was initially observed in the primary decidual zone and later extended to the secondary decidua zone. Knockdown of endoglin via siRNA reduced the implantation sites along with the blastocyst numbers. Mouse blastocyst with endoglin-silenced endometrial epithelial cells (human and mouse origin) showed poor trophoblast outgrowth, which suggests an essential role for endoglin during endometrial receptivity. In conclusion, our findings reveal the association of endoglin with endometrial receptivity, which is important for embryo attachment.
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Affiliation(s)
- Sangappa Basanna Chadchan
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Vijay Kumar
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Vineet Kumar Maurya
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Upendra Kumar Soni
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India
| | - Rajesh Kumar Jha
- Female Reproductive Biology Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, B.S. 10/1, Sector-10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
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Borman ED, Foster WG, Greenacre MKE, Muir CC, deCatanzaro D. Stress lowers the threshold dose at which bisphenol A disrupts blastocyst implantation, in conjunction with decreased uterine closure and e-cadherin. Chem Biol Interact 2015; 237:87-95. [PMID: 26026914 DOI: 10.1016/j.cbi.2015.05.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/04/2015] [Accepted: 05/18/2015] [Indexed: 01/07/2023]
Abstract
Exposure to stress can disrupt blastocyst implantation in inseminated female mice, and evidence implicates elevation of the female's estrogen:progesterone ratio. Exposure to the xenoestrogen, bisphenol A (BPA) can also disrupt implantation. Undisturbed control female CF-1 mice were compared to other females that were exposed to predators (rats) across a wire-mesh grid during gestation days (GD) 1-4, a procedure that elevates corticosterone but does not on its own disrupt implantation in this genetic strain. They were concurrently exposed to varied doses of BPA that on their own were below the threshold dose sufficient to disrupt implantation. On GD 6, we measured the number of intrauterine implantation sites and extracted their uteri, which subsequently were stained and analyzed for uterine luminal area and epithelial cadherin (e-cadherin), a molecule that causes uterine closure and adhesion of blastocysts to the uterine epithelium. The combination of rat-exposure stress and BPA significantly disrupted implantation and increased uterine luminal area, whereas either manipulation on its own did not. E-cadherin was significantly reduced by exposure to BPA, positively correlated with the number of implantation sites, and inversely correlated with luminal area. BPA exposure was also associated with nonmonotonic perturbation of urinary corticosterone concentrations and increased urinary estradiol concentrations on GD 6. These data are consistent with a potential summation of stress-induced estrogen and xenoestrogen activity.
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Affiliation(s)
- Evan D Borman
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Warren G Foster
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Matthew K E Greenacre
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
| | - Cameron C Muir
- Department of Psychology, Centre for Neuroscience, Brock University, St. Catharines, Ontario L2S 3A1, Canada
| | - Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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Kumar V, Maurya VK, Joshi A, Meeran SM, Jha RK. Integrin beta 8 (ITGB8) regulates embryo implantation potentially via controlling the activity of TGF-B1 in mice. Biol Reprod 2015; 92:109. [PMID: 25788663 DOI: 10.1095/biolreprod.114.122838] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 03/09/2015] [Indexed: 01/09/2023] Open
Abstract
Integrins (ITGs) are mediators of cell-cell and cell-matrix interactions, which are also associated with embryo implantation processes by controlling the interaction of blastocyst with endometrium. During early pregnancy, ITGbeta8 (ITGB8) has been shown to interact with latent transforming growth factor (TGF) beta 1 (TGFB1) at the fetomaternal interface. However, the precise role of ITGB8 in the uterus and its association with embryo implantation has not been elucidated. Therefore, we attempted to ascertain the role of ITGB8 during the window of embryo implantation process by inhibiting its function or protein expression. Uterine plasma membrane-anchored ITGB8 was augmented at peri-implantation and postimplantation stages. A similar pattern of mRNA expression was also found during the embryo implantation period. An immunolocalization study revealed the presence of ITGB8 on luminal epithelial cells along with mild expression on the stromal cells throughout the implantation period studied; however, an intense fluorescence was noted only during the peri- and postimplantation stages. Bioneutralization and mRNA silencing of the uterine Itgb8 at preimplantation stage reduced the rate/frequency of embryo implantation and subsequent pregnancy, suggesting its indispensable role during the embryo implantation period. ITGB8 can also regulate the liberation of active TGFB1 from its latent complex, which, in turn, acts on SMAD2/3 phosphorylation (activation) in the uterus during embryo implantation. This indicates involvement of ITGB8 in the embryo implantation process through regulation of activation of TGFB1.
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Affiliation(s)
- Vijay Kumar
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Vineet Kumar Maurya
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Anubha Joshi
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Syed Musthapa Meeran
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
| | - Rajesh Kumar Jha
- Division of Endocrinology, Council of Scientific and Industrial Research (CSIR)-Central Drug Research Institute, Jankipuram Extension, Lucknow, Uttar Pradesh, India
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deCatanzaro D. Sex steroids as pheromones in mammals: the exceptional role of estradiol. Horm Behav 2015; 68:103-16. [PMID: 25125222 DOI: 10.1016/j.yhbeh.2014.08.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 07/31/2014] [Accepted: 08/04/2014] [Indexed: 12/18/2022]
Abstract
This article is part of a Special Issue (Chemosignals and Reproduction). Whether from endogenous or exogenous sources, 17β-estradiol (E2) has very powerful influences over mammalian female reproductive physiology and behavior. Given its highly lipophilic nature and low molecular mass, E2 readily enters excretions and can be absorbed from exogenous sources via nasal, cutaneous, and other modes of exposure. Indeed, systemic injection of tritiated estradiol ((3)H-E2) into a male mouse or bat has been shown to produce significant levels of radioactivity in the reproductive tissues and brain of cohabiting female conspecifics. Bioactive E2 and other steroids are naturally found in male mouse urine and other excretions, and males actively direct their urine at proximate females. Very low doses of E2 can mimic the Bruce effect (disruption of peri-implantation pregnancy by novel males), the Vandenbergh effect (early reproductive maturation induced by novel males), and male-induced estrus and ovulation. Males' capacities to induce the Bruce and Vandenbergh effects can both be diminished by manipulations that reduce their urinary E2. Uterine dynamics during the Bruce and Vandenbergh effects are consistent with the actions of E2. Collectively, these data demonstrate a critical role of male-sourced E2 in these major mammalian pheromonal effects.
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Affiliation(s)
- Denys deCatanzaro
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada.
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39
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Li S, Li N, Zhu P, Wang Y, Tian Y, Wang X. Decreased β-catenin expression in first-trimester villi and decidua of patients with recurrent spontaneous abortion. J Obstet Gynaecol Res 2014; 41:904-11. [PMID: 25510422 DOI: 10.1111/jog.12647] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Accepted: 10/22/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Shuhong Li
- Department of Obstetrics and Gynecology; Provincial Hospital Affiliated to Shandong University; Jinan China
- Department of Obstetrics and Gynecology; Yantai Yuhuangding Hospital; Yantai China
| | - Ning Li
- Central Laboratory; Yantai Yuhuangding Hospital; Yantai China
| | - Peng Zhu
- Central Laboratory; Yantai Yuhuangding Hospital; Yantai China
| | - Yanwei Wang
- Central Laboratory; Yantai Yuhuangding Hospital; Yantai China
| | - Yongjie Tian
- Department of Obstetrics and Gynecology; Provincial Hospital Affiliated to Shandong University; Jinan China
| | - Xietong Wang
- Department of Obstetrics and Gynecology; Provincial Hospital Affiliated to Shandong University; Jinan China
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Rosario GX, Hondo E, Jeong JW, Mutalif R, Ye X, Yee LX, Stewart CL. The LIF-mediated molecular signature regulating murine embryo implantation. Biol Reprod 2014; 91:66. [PMID: 25031358 DOI: 10.1095/biolreprod.114.118513] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The establishment of a receptive uterus is the prime requirement for embryo implantation. In mice, the E2-induced cytokine leukemia inhibitory factor (LIF) is essential in switching the uterine luminal epithelium (LE) from a nonreceptive to a receptive state. Here we define the LIF-mediated switch using array analysis and informatics to identify LIF-induced changes in gene expression and annotated signaling pathways specific to the LE. We compare gene expression profiles at 0, 1, 3, and 6 h, following LIF treatment. During the first hour, the JAK-STAT signaling pathway is activated and the expression of 54 genes declines, primarily affecting LE cytoskeletal and chromatin organization as well as a transient reduction in the progesterone, TGFbetaR1, and ACVR1 receptors. Simultaneously 256 genes increase expression, of which 42 are transcription factors, including Sox, Kfl, Hes, Hey, and Hox families. Within 3 h, the expression of 3987 genes belonging to more than 25 biological process pathways was altered. We confirmed the mRNA and protein distribution of key genes from 10 pathways, including the Igf-1, Vegf, Toll-like receptors, actin cytoskeleton, ephrin, integrins, TGFbeta, Wnt, and Notch pathways. These data identify novel LIF-activated pathways in the LE and define the molecular basis between the refractory and receptive uterine phases. More broadly, these findings highlight the staggering capacity of a single cytokine to induce a dynamic and complex network of changes in a simple epithelium essential to mammalian reproduction and provide a basis for identifying new routes to regulating female reproduction.
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Affiliation(s)
- Gracy X Rosario
- Developmental and Regenerative Biology, Institute of Medical Biology, A*STAR, Immunos, Singapore
| | - Eiichi Hondo
- Laboratory of Animal Morphology, Division of Biofunctional Development, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Jae-Wook Jeong
- Department of Obstetrics and Gynecology and Reproductive Biology, Michigan State University, Grand Rapids, Michigan
| | - Rafidah Mutalif
- Developmental and Regenerative Biology, Institute of Medical Biology, A*STAR, Immunos, Singapore
| | - Xiaoqian Ye
- Developmental and Regenerative Biology, Institute of Medical Biology, A*STAR, Immunos, Singapore
| | - Li Xuan Yee
- Developmental and Regenerative Biology, Institute of Medical Biology, A*STAR, Immunos, Singapore
| | - Colin L Stewart
- Developmental and Regenerative Biology, Institute of Medical Biology, A*STAR, Immunos, Singapore
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Joshi A, Mahfooz S, Maurya VK, Kumar V, Basanna CS, Kaur G, Hanif K, Jha RK. PARP1 during embryo implantation and its upregulation by oestradiol in mice. Reproduction 2014; 147:765-80. [DOI: 10.1530/rep-13-0588] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pregnancy requires successful implantation of an embryo, which occurs during a restricted period defined as ‘receptivity of the endometrium’ and is influenced by the ovarian steroids progesterone and oestradiol. The role of poly(ADP-ribose)polymerase-1 (PARP1) in apoptosis is well established. However, it is also involved in cell differentiation, proliferation and tissue remodelling. Previous studies have described the presence of PARP in the uterus, but its exact role in embryo implantation is not yet elucidated. Hence, in this study, we studied the expression of PARP1 in the uterus during embryo implantation and decidualisation, and its regulation by ovarian steroids. Our results show upregulation of the native form of PARP1 (∼116 kDa) in the cytosolic and nuclear compartments of implantation and non-implantation sites at day 5 (0500 h), followed by downregulation at day 5 (1000 h), during the embryo implantation period. The transcript level of Parp1 was also augmented during day 5 (0500 h). Inhibition of PARP1 activity by the drug EB-47 decreased the number of embryo implantation sites and blastocysts at day 5 (1000 h). Further, cleavage of native PARP1 was due to the activity of caspase-3 during the peri-implantation stage (day 5 (0500 h)), and is also required for embryo implantation, as inhibition of its activity compromised blastocyst implantation. The native (∼116 kDa) and cleaved (∼89 kDa) forms of PARP1 were both elevated during decidualisation of the uterus. Furthermore, the expression level of PARP1 in the uterus was found to be under the control of the hormone oestrogen. Our results clearly demonstrate that PARP1 participates in the process of embryo implantation.
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Choi Y, Seo H, Shim J, Yoo I, Ka H. Calcium extrusion regulatory molecules: differential expression during pregnancy in the porcine uterus. Domest Anim Endocrinol 2014; 47:1-10. [PMID: 24472379 DOI: 10.1016/j.domaniend.2013.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/20/2013] [Accepted: 12/29/2013] [Indexed: 11/23/2022]
Abstract
Calcium ions in the uterine endometrium are essential for the establishment and maintenance of pregnancy, but the cellular and molecular mechanisms of calcium ion regulation in the endometrium are not fully understood. Our previous study in pigs found that calcium regulatory molecules, transient receptor potential, vanilloid type 6 and calbindin-D9K, are expressed in the uterine endometrium during the estrous cycle and pregnancy. However, we did not determine the expression of calcium extrusion regulatory molecules, plasma membrane calcium ATPases (ATP2Bs), sodium/calcium exchangers (SLC8As), or potassium-dependent sodium/calcium exchangers (SLC24As), in the uterine endometrium and conceptuses. Thus, in this study we determine whether ATP2Bs, SCL8As, and SLC24As are expressed in the uterine endometrium during the estrous cycle and pregnancy and in conceptuses during early pregnancy. Real-time RT-PCR analysis showed that ATP2Bs, SLC8As, and SLC24As were expressed in the uterine endometrium in a pregnancy status- and stage-specific manner. Conceptuses during early pregnancy also expressed these molecules. In situ hybridization analysis showed that ATP2B1, SLC8A1, and SLC24A4 were localized mainly to luminal and glandular epithelium and stromal cells in the endometrium during pregnancy. These results indicate that calcium extrusion regulatory molecules are expressed in the uterine endometrium during the estrous cycle and pregnancy and in conceptuses during early pregnancy, indicating that calcium extrusion regulatory molecules may play important roles in the establishment and maintenance of pregnancy by regulating calcium ion concentration in the uterine endometrium in pigs.
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Affiliation(s)
- Y Choi
- Department of Biological Science and Technology, IPAID, and Institute of Biomaterials, Yonsei University, Wonju, 220-710, Republic of Korea
| | - H Seo
- Department of Biological Science and Technology, IPAID, and Institute of Biomaterials, Yonsei University, Wonju, 220-710, Republic of Korea
| | - J Shim
- Department of Biological Science and Technology, IPAID, and Institute of Biomaterials, Yonsei University, Wonju, 220-710, Republic of Korea
| | - I Yoo
- Department of Biological Science and Technology, IPAID, and Institute of Biomaterials, Yonsei University, Wonju, 220-710, Republic of Korea
| | - H Ka
- Department of Biological Science and Technology, IPAID, and Institute of Biomaterials, Yonsei University, Wonju, 220-710, Republic of Korea.
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43
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Rajabi N, Thorpe JB, Foster WG, deCatanzaro D. Novel male exposure reduces uterine e-cadherin, increases uterine luminal area, and diminishes progesterone levels while disrupting blastocyst implantation in inseminated mice. J Steroid Biochem Mol Biol 2014; 139:107-13. [PMID: 23962793 DOI: 10.1016/j.jsbmb.2013.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 07/30/2013] [Accepted: 08/05/2013] [Indexed: 10/26/2022]
Abstract
Exposure to novel male mice disrupts blastocyst implantation in inseminated female mice, and evidence increasingly implicates the female's absorption of male urinary estrogens. We observed implantation sites in male-exposed and isolated control female mice during gestation days (GD) 2-8, observing a significant reduction in male-exposed females compared to controls, particularly on GD 6 and 8. We also measured transitions in uterine luminal area and e-cadherin expression, as these processes are modulated by estrogens. Luminal area was greater in male-exposed females than in controls during the post-implantation period (GD 5-7). E-cadherin levels were suppressed by male exposure, particularly during GD 4-6 Serum progesterone levels were also reduced in male-exposed females. The effects of male exposure on uterine closure and e-cadherin levels are consistent with established effects of estrogens, and suggest a possible mechanism that could contribute to implantation failure. This article is part of a Special Issue entitled 'Pregnancy and Steroids'.
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Affiliation(s)
- Nazanin Rajabi
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
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44
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Thorpe JB, Burgess PS, Sadkowski M, deCatanzaro D. Estrogen-progesterone balance in the context of blastocyst implantation failure induced by predator stress. Psychoneuroendocrinology 2013; 38:3048-56. [PMID: 24090584 DOI: 10.1016/j.psyneuen.2013.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 08/20/2013] [Accepted: 09/03/2013] [Indexed: 11/29/2022]
Abstract
Diverse stressors can disrupt blastocyst implantation in inseminated female mammals. Stress-induced implantation failure can be mimicked by minute doses of exogenous estradiol, and some evidence indicates that it may be mitigated by exogenous progesterone. In Experiment 1, we showed that acute exposure to a rat across a wire-mesh grid caused elevation of corticosterone and progesterone. In Experiment 2, we showed that exposure of inseminated mice to rats across a grid during gestation days 1-5 was associated with avoidance of proximity to the grid and a significantly reduced number of implantation sites on gestation day 6. Rat-exposure also resulted in elevated progesterone levels in females that maintained their pregnancies, and elevated estradiol levels in females that lost their pregnancies. In Experiment 3, we investigated whether exogenous progesterone, estradiol, or a combination of both could influence implantation failure induced by rat-exposure stress. Treatment with 100 ng estradiol per day on gestation days 1-5 induced a complete absence of implantation sites on gestation day 6, regardless of the presence or absence of the stressor. Administration of 500 μg progesterone per day was insufficient to prevent the stress-induced pregnancy loss. However, 500 μg progesterone plus 10 ng estradiol per day did prevent implantation failure in rat-exposed females. These findings are consistent with the hypothesis that estradiol elevations contribute to stress-induced pregnancy loss, but show paradoxically that low doses of estradiol can act together with progesterone to mitigate stress-induced pregnancy loss.
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Affiliation(s)
- Joelle B Thorpe
- Department of Psychology, Neuroscience & Behaviour, McMaster University, Hamilton, Ontario L8S 4K1, Canada
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45
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Perfluorooctanoate suppresses spheroid attachment on endometrial epithelial cells through peroxisome proliferator-activated receptor alpha and down-regulation of Wnt signaling. Reprod Toxicol 2013; 42:164-71. [PMID: 23978332 DOI: 10.1016/j.reprotox.2013.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 07/31/2013] [Accepted: 08/12/2013] [Indexed: 12/28/2022]
Abstract
Exposure of animals to perfluorooctanoic acid (PFOA), a surfactant used in emulsion polymerization processes causes early pregnancy loss, delayed growth and development of fetuses. The mechanisms of action are largely unknown. We studied the effect of PFOA on implantation using an in vitro spheroid-endometrial cell co-culture model. PFOA (10-100μM) significantly reduced Jeg-3 spheroid attachment on RL95-2 endometrial cells. PFOA also suppressed β-catenin expression in Jeg-3 cells. The Wnt agonist Wnt3a stimulated β-catenin expression in Jeg-3 cells and reversed the PFOA suppression of the spheroid attachment. The putative PFOA receptors (PPARα, β, γ) present in both cell lines were not affected by PFOA (0.01-100μM). The PPARα antagonist MK886 restored the β-catenin and E-cadherin expression levels in Jeg-3 cells and reversed the suppression of the spheroid attachment caused by PFOA. Taken together, PFOA suppresses spheroid attachment through PPARα and Wnt signaling pathways via down-regulation of β-catenin and E-cadherin expression.
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46
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Wallingford MC, Angelo JR, Mager J. Morphogenetic analysis of peri-implantation development. Dev Dyn 2013; 242:1110-20. [PMID: 23728800 DOI: 10.1002/dvdy.23991] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 05/07/2013] [Accepted: 05/19/2013] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Although successful implantation is required for development in placental mammals, the molecular and morphogenetic events that define peri-implantation remain largely unexplored. RESULTS Here we present detailed morphological and immunohistochemical analysis of mouse embryos between embryonic day 3.75 and 5.25 of gestation, during the implantation process in vivo. We examined expression patterns of key transcription factors (Sox2, Oct4, Nanog, Cdx2, Gata6, Sox17, and Yy1) during pre- and postimplantation development. Additionally, we examined morphogenetic changes through analysis of ZO-1, Laminin, and E-Cadherin localization. The results presented reveal novel changes in gene expression and morphogenetic events during peri-implantation in utero. Here we show: (1) molecular and morphological changes in primitive endoderm cells as they transition from a salt and pepper distribution to a sheet covering the inner cell mass; (2) tissue-specific GATA6 levels; and (3) a striking pattern of SOX17 that is suggestive of a functional role either directing or permitting implantation at specific sites in the uterine epithelium. CONCLUSIONS A growing number of knockout mice display peri-implantation lethality, and the data presented herein identify key morphogenetic landmarks that can be used to characterize mutant phenotypes, as well as further our basic understanding of peri-implantation development.
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Affiliation(s)
- Mary C Wallingford
- Department of Bioengineering, University of Washington, Seattle, Washington, USA
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47
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Bartel C, Tichy A, Walter I. Characterization of foamy epithelial surface cells in the canine endometrium. Anat Histol Embryol 2013; 43:165-81. [PMID: 23617756 DOI: 10.1111/ahe.12059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Accepted: 03/01/2013] [Indexed: 11/27/2022]
Abstract
In mature bitches, endometrial epithelial surface cells modify function and corresponding morphology during the oestrous cycle. During late metoestrous, endometrial epithelial surface cells frequently accumulate fat and thereby adopt a foamy morphology. This cyclic appearance of foamy endometrial epithelial cells (fEECs) seems to be physiological in the dog, whereas in other species, it indicates pathological changes. Function of these fEECs has not been identified until now. Therefore, the aim of the study was to characterize the fEECs by means of transmission electron microscopy and immunohistochemistry. Different manifestations of fEECs were observed and analysed with regard to proliferative activity and presence of different epithelial adhesion molecules including PLEKHA7, β-catenin and E-cadherin. PLEKHA7 was restricted to the apical regions of the fEECs, whereas E-cadherin and β-catenin were demonstrated basolateral. The immunohistochemical detection of steroid hormone receptors demonstrated the responsiveness of the fEECs to steroid hormones. Intense progesterone receptor expression was observed in the fEECs indicating a high responsiveness to this hormone. Considering a potential function of the fEECs, we hypothesized that leptin, a hormone produced by other lipid-accumulating cells and described to be involved in reproduction, in particular during implantation, might also originate from the fEECs which was confirmed by immunohistochemical methods. Moreover, leptin receptor was found in fEECs indicating the fEECs as both, source and target for leptin. Therefore, we conclude that fEECs in the canine uterus have a potential role in early pregnancy events and that the different observed manifestations might simply reflect the variations of signs of pseudopregnancy among bitches.
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Affiliation(s)
- C Bartel
- Department of Pathobiology, Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine, Veterinaerplatz 1, A - 1210, Vienna, Austria
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48
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Shirane A, Wada-Hiraike O, Tanikawa M, Seiki T, Hiraike H, Miyamoto Y, Sone K, Hirano M, Oishi H, Oda K, Kawana K, Nakagawa S, Osuga Y, Fujii T, Yano T, Kozuma S, Taketani Y. Regulation of SIRT1 determines initial step of endometrial receptivity by controlling E-cadherin expression. Biochem Biophys Res Commun 2012; 424:604-10. [PMID: 22780949 DOI: 10.1016/j.bbrc.2012.06.160] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 06/29/2012] [Indexed: 01/24/2023]
Abstract
Sirtuin 1 (SIRT1), originally found as a class III histone deacetylase, is a principal modulator of pathways downstream of calorie restriction, and the activation of SIRT1 ameliorates glucose homeostasis and insulin sensitivity. We examined the role of SIRT1 in the regulation of uterine receptivity using Ishikawa and RL95-2 endometrial carcinoma cell lines. Exogenous expression of SIRT1 significantly enhanced E-cadherin expression, while small interfering RNA-mediated depletion of endogenous SIRT1 resulted in a significant reduction of E-cadherin expression. A SIRT1 activator resveratrol elevated E-cadherin expression in a dose dependent manner, while SIRT1 repressors nicotinamide and sirtinol exhibited a dose dependent reduction of E-cadherin expression. We also showed that both forced expression of SIRT1 and activation of SIRT1 promote E-cadherin-driven reporter gene constructs, and SIRT1 is localized at E-cadherin promoter containing E-box elements in Ishikawa cells. Using an in vitro model of embryo implantation, we demonstrate that exogenous expression of SIRT1 and stimulation of SIRT1 activity resulted in the Ishikawa cell line becoming receptive to JAR cell spheroid attachment. Furthermore, resveratrol enhanced E-cadherin and Glycodelin protein expression at sites of intercellular contact, suggesting an additive role of resveratrol in promoting implantation. The initial step of human reproduction depends on the capacity of an embryo to attach and implant into the endometrial wall, and these results revealed the novel mechanism that activation and increased expression of SIRT1 play an important role in uterine receptivity.
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Affiliation(s)
- Akira Shirane
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
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Gao R, Ding Y, Liu X, Chen X, Wang Y, Long C, Li S, Guo L, He J. Effect of folate deficiency on promoter methylation and gene expression of Esr1, Cdh1 and Pgr, and its influence on endometrial receptivity and embryo implantation. Hum Reprod 2012; 27:2756-65. [DOI: 10.1093/humrep/des187] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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50
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Reardon SN, King ML, MacLean JA, Mann JL, DeMayo FJ, Lydon JP, Hayashi K. CDH1 is essential for endometrial differentiation, gland development, and adult function in the mouse uterus. Biol Reprod 2012; 86:141, 1-10. [PMID: 22378759 DOI: 10.1095/biolreprod.112.098871] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
CDH1 is a cell-cell adhesion molecule expressed in the epithelium to coordinate key morphogenetic processes, establish cell polarity, and regulate epithelial differentiation and proliferation. To determine the role of CDH1 in the mouse uterus, Cdh1 was conditionally ablated by crossing Pgr-Cre and Cdh1-flox mice, and the phenotype was characterized. We found that loss of Cdh1 results in a disorganized cellular structure of the epithelium and ablation of endometrial glands in the neonatal uterus. Cdh1(d/d) mice lost adherens junctions (CTNNB1 and CTNNA1) and tight junctions (claudin, occludin, and ZO-1 proteins) in the neonatal uterus, leading to loss of epithelial cell-cell interaction. Ablation of Cdh1 induced abnormal epithelial proliferation and massive apoptosis, and disrupted Wnt and Hox gene expression in the neonatal uterus. Although the uteri of Cdh1(d/d) mice did not show any myometrial defects, ablation of Cdh1 inhibited expression of epithelial (cytokeratin 8) and stromal (CD10) markers. Cdh1(d/d) mice were infertile because of defects during implantation and decidualization. Furthermore, we showed in the model of conditional ablation of both Cdh1 and Trp53 in the uterus that interrupting cell cycle regulation through the loss of Cdh1 leads to abnormal uterine development. The uteri of Cdh1(d/d) Trp53(d/d) mice exhibited histological features of endometrial carcinomas with myometrial invasion. Collectively, these findings suggest that CDH1 has an important role in structural and functional development of the uterus as well as adult uterine function. CDH1 has a capacity to control cell fate by altering directional cell proliferation and apoptosis.
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Affiliation(s)
- Sarah N Reardon
- Department of Physiology, Southern Illinois University School of Medicine, Carbondale, Illinois, USA
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