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Shenoy US, Adiga D, Alhedyan F, Kabekkodu SP, Radhakrishnan R. HOXA9 transcription factor is a double-edged sword: from development to cancer progression. Cancer Metastasis Rev 2024; 43:709-728. [PMID: 38062297 PMCID: PMC11156722 DOI: 10.1007/s10555-023-10159-2] [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: 08/09/2023] [Accepted: 11/30/2023] [Indexed: 04/02/2024]
Abstract
The HOXA9 transcription factor serves as a molecular orchestrator in cancer stemness, epithelial-mesenchymal transition (EMT), metastasis, and generation of the tumor microenvironment in hematological and solid malignancies. However, the multiple modes of regulation, multifaceted functions, and context-dependent interactions responsible for the dual role of HOXA9 as an oncogene or tumor suppressor in cancer remain obscure. Hence, unravelling its molecular complexities, binding partners, and interacting signaling molecules enables us to comprehend HOXA9-mediated transcriptional programs and molecular crosstalk. However, it is imperative to understand its central role in fundamental biological processes such as embryogenesis, foetus implantation, hematopoiesis, endothelial cell proliferation, and tissue homeostasis before designing targeted therapies. Indeed, it presents an enormous challenge for clinicians to selectively target its oncogenic functions or restore tumor-suppressive role without altering normal cellular functions. In addition to its implications in cancer, the present review also focuses on the clinical applications of HOXA9 in recurrence and drug resistance, which may provide a broader understanding beyond oncology, open new avenues for clinicians for accurate diagnoses, and develop personalized treatment strategies. Furthermore, we have also discussed the existing therapeutic options and accompanying challenges in HOXA9-targeted therapies in different cancer types.
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Affiliation(s)
- U Sangeetha Shenoy
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Faisal Alhedyan
- Department of Oral and Maxillofacial Surgery and Diagnostic Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
- Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, The University of Sheffield, Sheffield, United Kingdom
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, 576104, India.
- Unit of Oral and Maxillofacial Pathology, School of Clinical Dentistry, The University of Sheffield, Sheffield, United Kingdom.
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Fu M, Deng F, Chen J, Fu L, Lei J, Xu T, Chen Y, Zhou J, Gao Q, Ding H. Current data and future perspectives on DNA methylation in ovarian cancer (Review). Int J Oncol 2024; 64:62. [PMID: 38757340 PMCID: PMC11095605 DOI: 10.3892/ijo.2024.5650] [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: 11/23/2023] [Accepted: 04/25/2024] [Indexed: 05/18/2024] Open
Abstract
Ovarian cancer (OC) represents the most prevalent malignancy of the female reproductive system. Its distinguishing features include a high aggressiveness, substantial morbidity and mortality, and a lack of apparent symptoms, which collectively pose significant challenges for early detection. Given that aberrant DNA methylation events leading to altered gene expression are characteristic of numerous tumor types, there has been extensive research into epigenetic mechanisms, particularly DNA methylation, in human cancers. In the context of OC, DNA methylation is often associated with the regulation of critical genes, such as BRCA1/2 and Ras‑association domain family 1A. Methylation modifications within the promoter regions of these genes not only contribute to the pathogenesis of OC, but also induce medication resistance and influence the prognosis of patients with OC. As such, a more in‑depth understanding of DNA methylation underpinning carcinogenesis could potentially facilitate the development of more effective therapeutic approaches for this intricate disease. The present review focuses on classical tumor suppressor genes, oncogenes, signaling pathways and associated microRNAs in an aim to elucidate the influence of DNA methylation on the development and progression of OC. The advantages and limitations of employing DNA methylation in the diagnosis, treatment and prevention of OC are also discussed. On the whole, the present literature review indicates that the DNA methylation of specific genes could potentially serve as a prognostic biomarker for OC and a therapeutic target for personalized treatment strategies. Further investigations in this field may yield more efficacious diagnostic and therapeutic alternatives for patients with OC.
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Affiliation(s)
- Mengyu Fu
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Fengying Deng
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Jie Chen
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Li Fu
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Jiahui Lei
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Ting Xu
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
- Department of Gynecology and Obstetrics, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, Jiangsu 215100, P.R. China
| | - Youguo Chen
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Jinhua Zhou
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Qinqin Gao
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Hongmei Ding
- Institute for Fetology, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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Mikkelsen TF, Vera-Rodriguez M, Greggains G, Fedorcsák P, Hald K. Effect of endometrial biopsy method on ribonucleic acid quality and gene expression analysis in patients with leiomyoma. F S Rep 2024; 5:72-79. [PMID: 38524201 PMCID: PMC10958711 DOI: 10.1016/j.xfre.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 11/02/2023] [Accepted: 11/09/2023] [Indexed: 03/26/2024] Open
Abstract
Objective To compare ribonucleic acid (RNA) quantity and purity in tissue collected with different endometrial sampling methods to establish the optimal tool for use in endometrial gene expression studies. Design Observational study. Setting University hospital. Patients Fourteen patients with submucosal leiomyomas. Interventions Unguided biopsies were obtained using a low-pressure suction device before hysteroscopy from 14 patients with submucosal leiomyomas followed by guided biopsy with a resectoscope loop. Fifty-seven samples were collected: 25 obtained using a suction device and 32 with a loop. Main Outcome Measures Total biopsy weight, RNA purity, and RNA yield for each collection method. After complementary deoxyribonucleic acid synthesis, HOXA10 expression was measured by quantitative polymerase chain reaction in the endometrium overlying and remote from the leiomyoma, as similar expression throughout the cavity was a prerequisite for the use of unguided biopsy method. Results The median weight of the samples was significantly larger when obtained with the low-pressure suction device than with the resectoscope loop (153 vs. 20 mg). The RNA yield was similar (suction curette, 1,625 ng/mg; resectoscope loop, 1,779 ng/mg). The A260-to-A280 ratio was satisfactory for 94.7 % of the samples, with no difference between the groups. The endometrial expression of HOXA10 was similar in areas overlying the leiomyoma compared with that in remote endometrial sites (2-ΔCt = 0.0224 vs. 0.0225). Conclusions Low-pressure endometrial suction devices provide tissue samples with acceptable RNA purity and quantity for gene expression studies. The expression of HOXA10 did not differ between endometrial sampling sites even in the presence of leiomyomas.
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Affiliation(s)
- Thea Falkenberg Mikkelsen
- Department of Gynecology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Maria Vera-Rodriguez
- Department of Reproductive Medicine, Oslo University Hospital, Oslo, Norway
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Gareth Greggains
- Department of Reproductive Medicine, Oslo University Hospital, Oslo, Norway
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
| | - Péter Fedorcsák
- Department of Reproductive Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Kirsten Hald
- Department of Gynecology, Oslo University Hospital, Oslo, Norway
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4
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Wang B, He Y, Zhang P, Huang Y, Xiang H. The function of nuclear hormone receptor 4A signaling in the human reproductive system: A review. J Obstet Gynaecol Res 2022; 48:1501-1512. [PMID: 35445497 DOI: 10.1111/jog.15264] [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: 12/20/2021] [Revised: 03/18/2022] [Accepted: 03/27/2022] [Indexed: 11/29/2022]
Abstract
AIM This review aims to summarize the research focused upon the functions of nuclear hormone receptor 4A (NR4A) in the human reproductive system. The research questions addressed are to decipher what role the NR4A subfamily plays in the regulation of the human reproductive system and effects upon fertility issues through regulation of the expression of the NR4A subfamily. METHODS The electronic database PubMed was searched for studies published before November 2021. Keywords included "NR4A," "trophoblast," "decidualization," "folliculogenesis," "estrogen," "pregnancy," "Leydig cells," "fertility," and "reproductive." Relevant references from retrieved manuscripts and review articles were also searched manually. RESULTS NR4A subfamily are involved in trophoblast differentiation, endometrial decidualization, embryo adhesion, secretion of related hormones, and regulation of spontaneous term labor. Besides, many studies have provided strong evidence that they play critical roles in spermatogenesis. Furthermore, Multiple mechanisms can affect the expression of NR4As. Broadly, NR4A family receptors affect the human reproductive system in multiple ways. CONCLUSIONS Further research is needed to specifically dissect the functions and regulatory mechanisms of these receptors and their pharmaceutical antagonists and agonists. The connection between the NR4A subfamily and a variety of reproductive disorders needs to be proven experimentally such that further examination of human tissue is required to assess the role of these receptors in human reproductive diseases.
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Affiliation(s)
- Boya Wang
- Department of Gynecology and Obstetrics, The Fourth Affiliated Hospital of Anhui Medical, Anhui, China.,Department of Gynecology and Obstetrics, The First Affiliated Hospital of Anhui Medical University, Anhui, China.,NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), Hefei, Anhui, China
| | - Yingming He
- Department of Gynecology and Obstetrics, The Fourth Affiliated Hospital of Anhui Medical, Anhui, China.,Department of Gynecology and Obstetrics, The First Affiliated Hospital of Anhui Medical University, Anhui, China.,NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), Hefei, Anhui, China
| | - Pin Zhang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Anhui Medical University, Anhui, China.,NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), Hefei, Anhui, China.,Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, Hefei, Anhui, China
| | - Yue Huang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Anhui Medical University, Anhui, China.,NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), Hefei, Anhui, China.,Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, Hefei, Anhui, China
| | - Huifen Xiang
- Department of Gynecology and Obstetrics, The Fourth Affiliated Hospital of Anhui Medical, Anhui, China.,Department of Gynecology and Obstetrics, The First Affiliated Hospital of Anhui Medical University, Anhui, China.,NHC Key Laboratory of study on abnormal gametes and reproductive tract (Anhui Medical University), Hefei, Anhui, China.,Key Laboratory of Population Health Across Life Cycle (Anhui Medical University),Ministry of Education of the People's Republic of China, Hefei, Anhui, China
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5
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Zhao H, Hu S, Qi J, Wang Y, Ding Y, Zhu Q, He Y, Lu Y, Yao Y, Wang S, Du Y, Sun Y. Increased expression of HOXA11-AS attenuates endometrial decidualization in recurrent implantation failure patients. Mol Ther 2022; 30:1706-1720. [PMID: 35114391 PMCID: PMC9077377 DOI: 10.1016/j.ymthe.2022.01.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 12/29/2021] [Accepted: 01/27/2022] [Indexed: 11/19/2022] Open
Abstract
Endometrial decidualization is a prerequisite for implantation, and impaired decidualization is associated with recurrent implantation failure (RIF). Coding genes of the HOX family have been clarified as critical regulators in endometrial decidualization, but the role of long non-coding RNAs (lncRNAs) in the HOX gene family has yet to be determined. The aim of this study was to clarify the possible roles of lncRNAs in the HOX gene family in decidualization. In this study, we identified that HOXA11-AS was the most reduced lncRNA in the HOX family in the human endometrium during the window of implantation, and it was elevated in RIF patients. Mechanistically, HOXA11-AS negatively regulated decidualization through competitive interaction with PTBP1, an RNA-binding protein. Binding of PTBP1 to HOXA11-AS limited PTBP1 availability to regulate PKM1/2 alternative splicing, resulting in enhanced PKM1 and diminished PKM2 expression, thus attenuating decidualization. The pattern of high HOXA11-AS expression and impaired PKM2 splicing was consistently observed in RIF patients. Collectively, our study indicates that the increase of HOXA11-AS is detrimental to endometrial decidualization, likely contributing to RIF. Our study may shed light on the pathogenesis and treatment of RIF.
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Affiliation(s)
- Hanting Zhao
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Shuanggang Hu
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Jia Qi
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yuan Wang
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Ying Ding
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Qinling Zhu
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yaqiong He
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yao Lu
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yue Yao
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Shiyao Wang
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yanzhi Du
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China
| | - Yun Sun
- Center for Reproductive Medicine, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, No. 845 Lingshan Road, Pudong New Ddistrict, Shanghai 200135, China; Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai 200135, China.
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6
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Shareghi-Oskoue O, Aghebati-Maleki L, Yousefi M. Transplantation of human umbilical cord mesenchymal stem cells to treat premature ovarian failure. Stem Cell Res Ther 2021; 12:454. [PMID: 34380572 PMCID: PMC8359553 DOI: 10.1186/s13287-021-02529-w] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 06/02/2021] [Indexed: 12/14/2022] Open
Abstract
As one of the problems and diseases for women before 40 years, premature ovarian failure (POF) could be characterized by amenorrhea, low estrogen levels, infertility, high gonadotropin levels, and lack of mature follicles. Causes of the disease involve some genetic disorders, autoimmunity diseases, and environmental factors. Various approaches have been employed to treat POF, however with limited success. Today, stem cells are used to treat POF, since they have the potential to self-repair and regenerate, and are effective in treating ovarian failure and infertility. As mesenchymal stem cell (MSC) could simultaneously activate several mechanisms, many researchers consider MSC transplantation to be the best and most effective approach in cell therapy. A good source for mesenchymal stem cells is human umbilical cord (HUCMSC). Animal models with cyclophosphamide are required for stem cell treatment and performance of HUCMSC transplantation. Stem cell therapy could indicate the levels of ovarian markers and follicle-stimulating hormone receptor. It also increases ovarian weight, plasma E2 levels, and the amount of standard follicles. Herein, the causes of POF, effective treatment strategies, and the effect of HUCMSC transplantation for the treatment of premature ovarian failure are reviewed. Many studies have been conducted in this field, and the results have shown that stem cell treatment is an effective approach to treat infertility.
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Affiliation(s)
- Oldouz Shareghi-Oskoue
- Stem Cell Research Center, Tabriz University of Medical Science, Tabriz, Iran
- Student's Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leili Aghebati-Maleki
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, School of Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Science, Tabriz, Iran.
- Department of Immunology, School of Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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7
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He A, Zou Y, Wan C, Zhao J, Zhang Q, Yao Z, Tian F, Wu H, Huang X, Fu J, Hu C, Sun Y, Xiao L, Yang T, Hou Z, Dong X, Lu S, Li Y. The role of transcriptomic biomarkers of endometrial receptivity in personalized embryo transfer for patients with repeated implantation failure. J Transl Med 2021; 19:176. [PMID: 33910562 PMCID: PMC8082865 DOI: 10.1186/s12967-021-02837-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/16/2021] [Indexed: 11/24/2022] Open
Abstract
Background Window of implantation (WOI) displacement is one of the endometrial origins of embryo implantation failure, especially repeated implantation failure (RIF). An accurate prediction tool for endometrial receptivity (ER) is extraordinarily needed to precisely guide successful embryo implantation. We aimed to establish an RNA-Seq-based endometrial receptivity test (rsERT) tool using transcriptomic biomarkers and to evaluate the benefit of personalized embryo transfer (pET) guided by this tool in patients with RIF. Methods This was a two-phase strategy comprising tool establishment with retrospective data and benefit evaluation with a prospective, nonrandomized controlled trial. In the first phase, rsERT was established by sequencing and analyzing the RNA of endometrial tissues from 50 IVF patients with normal WOI timing. In the second phase, 142 patients with RIF were recruited and grouped by patient self-selection (experimental group, n = 56; control group, n = 86). pET guided by rsERT was performed in the experimental group and conventional ET in the control group. Results The rsERT, comprising 175 biomarker genes, showed an average accuracy of 98.4% by using tenfold cross-validation. The intrauterine pregnancy rate (IPR) of the experimental group (50.0%) was significantly improved compared to that (23.7%) of the control group (RR, 2.107; 95% CI 1.159 to 3.830; P = 0.017) when transferring day-3 embryos. Although not significantly different, the IPR of the experimental group (63.6%) was still 20 percentage points higher than that (40.7%) of the control group (RR, 1.562; 95% CI 0.898 to 2.718; P = 0.111) when transferring blastocysts. Conclusions The rsERT was developed to accurately predict the WOI period and significantly improve the pregnancy outcomes of patients with RIF, indicating the clinical potential of rsERT-guided pET. Trial registration Chinese Clinical Trial Registry: ChiCTR-DDD-17013375. Registered 14 November 2017, http://www.chictr.org.cn/index.aspx Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-02837-y.
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Affiliation(s)
- Aihua He
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Yangyun Zou
- Department of Clinical Research, Yikon Genomics Company, Ltd., #301, Building A3, No. 218, Xinghu Street, Suzhou, 215123, Jiangsu, China
| | - Cheng Wan
- Department of Clinical Research, Yikon Genomics Company, Ltd., #301, Building A3, No. 218, Xinghu Street, Suzhou, 215123, Jiangsu, China
| | - Jing Zhao
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Qiong Zhang
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Zhongyuan Yao
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Fen Tian
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Hong Wu
- Department of ENT, Xiangya Hospital, Central South University, Changsha, 410000, Hunan, China.,Key Laboratory of Otolaryngology in Hunan Province, Changsha, 410000, Hunan, China
| | - Xi Huang
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Jing Fu
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Chunxu Hu
- Department of Clinical Research, Yikon Genomics Company, Ltd., #301, Building A3, No. 218, Xinghu Street, Suzhou, 215123, Jiangsu, China
| | - Yue Sun
- Department of Clinical Research, Yikon Genomics Company, Ltd., #301, Building A3, No. 218, Xinghu Street, Suzhou, 215123, Jiangsu, China
| | - Lan Xiao
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Tianli Yang
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Zhaojuan Hou
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China.,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China
| | - Xin Dong
- Department of Clinical Research, Yikon Genomics Company, Ltd., #301, Building A3, No. 218, Xinghu Street, Suzhou, 215123, Jiangsu, China
| | - Sijia Lu
- Department of Clinical Research, Yikon Genomics Company, Ltd., #301, Building A3, No. 218, Xinghu Street, Suzhou, 215123, Jiangsu, China.
| | - Yanping Li
- Department of Reproductive Medicine, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410000, Hunan, China. .,Clinical Research Center for Women's Reproductive Health in Hunan Province, Changsha, 410000, Hunan, China.
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8
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Association between HOX Transcript Antisense RNA Single-Nucleotide Variants and Recurrent Implantation Failure. Int J Mol Sci 2021; 22:ijms22063021. [PMID: 33809601 PMCID: PMC8002254 DOI: 10.3390/ijms22063021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/26/2022] Open
Abstract
Recurrent implantation failure (RIF) refers to the occurrence of more than two failed in vitro fertilization–embryo transfers (IVF-ETs) in the same individual. RIF can occur for many reasons, including embryo characteristics, immunological factors, and coagulation factors. Genetics can also contribute to RIF, with some single-nucleotide variants (SNVs) reported to be associated with RIF occurrence. We examined SNVs in a long non-coding RNA, homeobox (HOX) transcript antisense RNA (HOTAIR), which is known to affect cancer development. HOTAIR regulates epigenetic outcomes through histone modifications and chromatin remodeling. We recruited 155 female RIF patients and 330 healthy controls, and genotyped HOTAIR SNVs, including rs4759314, rs920778, rs7958904, and rs1899663, in all participants. Differences in these SNVs were compared between the patient and control groups. We identified significant differences in the occurrence of heterozygous genotypes and the dominant expression model for the rs1899663 and rs7958904 SNVs between RIF patients and control subjects. These HOTAIR variants were associated with serum hemoglobin (Hgb), luteinizing hormone (LH), total cholesterol (T. chol), and blood urea nitrogen (BUN) levels, as assessed by analysis of variance (ANOVA). We analyzed the four HOTAIR SNVs and found significant differences in haplotype patterns between RIF patients and healthy controls. The results of this study showed that HOTAIR is not only associated with the development of cancer but also with pregnancy-associated diseases. This study represents the first report showing that HOTAIR is correlated with RIF.
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Palagiano A, Cozzolino M, Ubaldi FM, Palagiano C, Coccia ME. Effects of Hydrosalpinx on Endometrial Implantation Failures: Evaluating Salpingectomy in Women Undergoing in vitro fertilization. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2021; 43:304-310. [PMID: 33601465 PMCID: PMC10183881 DOI: 10.1055/s-0040-1722155] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Hydrosalpinx is a disease characterized by the obstruction of the salpinx, with progressive accumulation in the shape of a fluid-filled sac at the distal part of the tuba uterina, and closed to the ovary. Women with hydrosalpinges have lower implantation and pregnancy rates due to a combination of mechanical and chemical factors thought to disrupt the endometrial environment. Evidence suggests that the presence of hydrosalpinx reduces the rate of pregnancy with assisted reproductive technology. The main aim of the present is review to make an overview of the possible effects of hydrosalpinx on in vitro fertilization (IVF). We conducted a literature search on the PubMed, Ovid MEDLINE, and Google Scholar data bases regarding hydrosalpinx and IVF outcomes. Hydrosalpinx probably has a direct toxic effect on sperm motility and on the embryos. In addition, the increasing liquid inside the salpinges could alter the mechanisms of endometrial receptivity. The window of endometrial receptivity is essential in the implantation of blastocysts, and it triggers multiple reactions arising from the endometrium as well as the blastocysts. Hydrosalpinx could influence the expression of homeobox A10 (HOXA10) gene, which plays an essential role in directing embryonic development and implantation. Salpingectomy restores the endometrial expression of HOXA10; therefore, it may be one mechanism by which tubal removal could result in improved implantation rates in IVF. In addition, salpingectomy does not affect the ovarian response, nor reduces the antral follicle count. Further studies are needed to establish the therapeutic value of fluid aspiration under ultrasonographic guidance, during or after oocyte retrieval, in terms of pregnancy rate and ongoing pregnancy.
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Affiliation(s)
- Antonio Palagiano
- Department of General and Specialized Surgery for Women and Children, Università degli Studi della Campania Luigi Vanvitelli, Napoli, Italy
| | - Mauro Cozzolino
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, Connecticut, United States.,Universidad Rey Juan Carlos, Madrid, Spain.,IVIRMA, IVI Foundation, Valencia, Spain
| | | | | | - Maria Elisabetta Coccia
- Department of Biomedical, Experimental and Clinical Sciences, Division of Obstetrics and Gynecology, Università degli Studi di Firenze, Azienda Ospedaliero Universitaria Careggi, Firenze, Italy
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10
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Ojosnegros S, Seriola A, Godeau AL, Veiga A. Embryo implantation in the laboratory: an update on current techniques. Hum Reprod Update 2021; 27:501-530. [PMID: 33410481 DOI: 10.1093/humupd/dmaa054] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 07/18/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The embryo implantation process is crucial for the correct establishment and progress of pregnancy. During implantation, the blastocyst trophectoderm cells attach to the epithelium of the endometrium, triggering intense cell-to-cell crosstalk that leads to trophoblast outgrowth, invasion of the endometrial tissue, and formation of the placenta. However, this process, which is vital for embryo and foetal development in utero, is still elusive to experimentation because of its inaccessibility. Experimental implantation is cumbersome and impractical in adult animal models and is inconceivable in humans. OBJECTIVE AND RATIONALE A number of custom experimental solutions have been proposed to recreate different stages of the implantation process in vitro, by combining a human embryo (or a human embryo surrogate) and endometrial cells (or a surrogate for the endometrial tissue). In vitro models allow rapid high-throughput interrogation of embryos and cells, and efficient screening of molecules, such as cytokines, drugs, or transcription factors, that control embryo implantation and the receptivity of the endometrium. However, the broad selection of available in vitro systems makes it complicated to decide which system best fits the needs of a specific experiment or scientific question. To orient the reader, this review will explore the experimental options proposed in the literature, and classify them into amenable categories based on the embryo/cell pairs employed.The goal is to give an overview of the tools available to study the complex process of human embryo implantation, and explain the differences between them, including the advantages and disadvantages of each system. SEARCH METHODS We performed a comprehensive review of the literature to come up with different categories that mimic the different stages of embryo implantation in vitro, ranging from initial blastocyst apposition to later stages of trophoblast invasion or gastrulation. We will also review recent breakthrough advances on stem cells and organoids, assembling embryo-like structures and endometrial tissues. OUTCOMES We highlight the most relevant systems and describe the most significant experiments. We focus on in vitro systems that have contributed to the study of human reproduction by discovering molecules that control implantation, including hormones, signalling molecules, transcription factors and cytokines. WIDER IMPLICATIONS The momentum of this field is growing thanks to the use of stem cells to build embryo-like structures and endometrial tissues, and the use of bioengineering to extend the life of embryos in culture. We propose to merge bioengineering methods derived from the fields of stem cells and reproduction to develop new systems covering a wider window of the implantation process.
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Affiliation(s)
- Samuel Ojosnegros
- Bioengineering in Reproductive Health, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Anna Seriola
- Bioengineering in Reproductive Health, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Amélie L Godeau
- Bioengineering in Reproductive Health, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Anna Veiga
- B arcelona Stem Cell Bank, Regenerative Medicine Programme, Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), Hospital Duran i Reynals, Barcelona, Spain.,Reproductive Medicine Service, Dexeus Mujer, Hospital Universitari Dexeus, Barcelona, Spain
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11
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Skp2 Deteriorates the Uterine Receptivity by Interacting with HOXA10 and Promoting its Degradation. Reprod Sci 2020; 28:1069-1078. [PMID: 33104986 DOI: 10.1007/s43032-020-00367-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/19/2020] [Indexed: 10/23/2022]
Abstract
Receptive endometrium plays a core role in successful embryo implantation, and about one-third of repeated embryo implantation failures are attributed to endometrial receptive defects. S-phase kinase-associated protein 2 (SKP2), a member of the F-box protein family, plays an important role in many cellular processes, including cell proliferation and apoptosis. However, its role in endometrial receptivity is still unclear. Here, we identified SKP2 was obviously upregulated in the patients with infertility. Functional study showed that SKP2 overexpression inhibited endometrial epithelial cell (EEC) proliferation, whereas SKP2 knockdown promoted the proliferation of EECs. In addition, the overexpression of SKP2 also repressed adhesion rate of embryonic cells to EECs. In vivo studies further suggested that the upregulation of SKP2 obviously suppressed endometrium receptivity formation and embryo implantation potential. Mechanistical study clarified that SKP2 directly interacted with HOXA10 and decreased protein stability through promoting the ubiquitin-mediated proteasome degradation of HOXA10. In conclusion, the current study documented that the high expression of SKP2 deteriorates endometrial receptivity formation by decreasing the HOXA10 expression and suggested that SKP2 may be defined as a marker of endometrial receptivity, and as a target for the diagnosis and treatment of infertility.
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12
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Tan X, Ding J, Pu D, Wu J. Anti-phospholipid antibody may reduce endometrial receptivity during the window of embryo implantation. J Gynecol Obstet Hum Reprod 2020; 50:101912. [PMID: 32950746 DOI: 10.1016/j.jogoh.2020.101912] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/28/2020] [Accepted: 09/14/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Anti-phospholipid antibodies (aPL) have been reported to be associated with repeated implantation failure (RIF), but the mechanism remains controversial. Endometrial receptivity is well known to be crucial for embryo implantation. This study aims to investigate the effect of aPL on endometrial receptivity in RIF women with positive aPL. METHODS Sixty-four infertile women with normal menstrual cycles were enrolled. The control group comprised 32 pregnant women with negative aPL who conceived successfully after their first in vitro fertilization-embryo transfer (IVF-ET) cycle, and the RIF group comprised 32 women with positive aPL. Endometrial biopsy samples were collected seven days after the luteinizing hormone surge (LH + 7). The expression of LIF and HOXA10 was evaluated by immunohistochemistry, qRT-PCR and Western blot. Endometrial pinopode development was examined by scanning electron microscopy. RESULTS The mRNA expression of LIF and HOXA10 in the RIF group was significantly decreased compared with that in the control group during the implantation window. The immunohistochemistry and Western blot results confirmed these findings. Then, ultrastructural analyses of endometrial cells showed fewer pinopode processes, a more atypical morphology and increased atrophy in the RIF group compared with the control group, and these results were statistically significant. CONCLUSION aPL positivity may inhibit the expression of LIF and HOXA10 in the endometrium and influence pinopode development. Our findings suggest that positivity for aPL is associated with impaired endometrial receptivity, which results in the development of RIF.
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Affiliation(s)
- Xiaofang Tan
- State Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University/Jiangsu Province Hospital/Jiangsu Women and Children Health Hospital, Nanjing Medical University, Nanjing, 210029, China; Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, 226006, China
| | - Jiayi Ding
- Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, 226006, China
| | - Danhua Pu
- State Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University/Jiangsu Province Hospital/Jiangsu Women and Children Health Hospital, Nanjing Medical University, Nanjing, 210029, China.
| | - Jie Wu
- State Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Nanjing Medical University/Jiangsu Province Hospital/Jiangsu Women and Children Health Hospital, Nanjing Medical University, Nanjing, 210029, China.
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13
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Shen J, Zhu X, Zhang M, Jiang Y, Yan G, Wang Z, Sun L, Zhang Q. Nur77 promotes embryo adhesion by transcriptionally regulating HOXA10 expression. Syst Biol Reprod Med 2019; 66:50-58. [PMID: 31574241 DOI: 10.1080/19396368.2019.1671536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jingtao Shen
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Department of Nuclear Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Xudong Zhu
- College of Science Isotope Laboratory, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Mei Zhang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Department of Nuclear Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Yue Jiang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Guijun Yan
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Zhilong Wang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Lihua Sun
- Department of Reproductive Medicine Center, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qun Zhang
- Reproductive Medicine Center, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
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14
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Wang X, Yu Q. An update on the progress of transcriptomic profiles of human endometrial receptivity. Biol Reprod 2019; 98:440-448. [PMID: 29365037 DOI: 10.1093/biolre/ioy018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 01/19/2018] [Indexed: 12/19/2022] Open
Abstract
Despite advances in our understanding of fertility, implantation failure remains a significant problem for both spontaneous and assisted pregnancies. Most research efforts concerning the process of implantation are embryo-centric, with a dearth of studies on endometrial factors. Currently, there are no practical and effective diagnostic tools available to precisely predict endometrial receptivity. Transcriptomics, a field based on microarray technology, has a number of procedures for clinical applications, although the functional relevance of most identified genes remains unclear. Importantly, RNA sequencing will further improve the precision and broaden the clinical use of the transcriptome by detecting previously undiscovered genes, which could be used to further our understanding of endometrial receptivity. In this review, potential biomarkers based on endometrium gene expression profiles of human endometrial receptivity were described and compared in natural and stimulated cycles toward discovering future prospects for personalized medical approaches. The intent of this synthesis is to provide researchers, doctors, and clinicians in the field with a better understanding of endometrium receptivity, promote further study in the transcriptome in embryo implantation, and ultimately, improve pregnancy outcome.
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Affiliation(s)
- Xi Wang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Qi Yu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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15
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Lu X, Cui J, Cui L, Luo Q, Cao Q, Yuan W, Zhang H. The effects of human umbilical cord-derived mesenchymal stem cell transplantation on endometrial receptivity are associated with Th1/Th2 balance change and uNK cell expression of uterine in autoimmune premature ovarian failure mice. Stem Cell Res Ther 2019; 10:214. [PMID: 31331391 PMCID: PMC6647296 DOI: 10.1186/s13287-019-1313-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 06/12/2019] [Accepted: 06/25/2019] [Indexed: 01/02/2023] Open
Abstract
Background To explore the mechanism of human umbilical cord-derived mesenchymal stem cell (hUMSC) transplantation to improve ovarian function and the endometrial receptivity in autoimmune premature ovarian failure (POF) mice. Methods The POF model was established in mice treated with zona pellucida 3 polypeptide fragment (zona pellucida 3, ZP3). The hUMSCs were transplanted into the POF mice through tail vein injection. Following the transplantation, the serum hormone levels of follicle stimulating hormone (FSH), estrogen (E2), progesterone (P), γ-interferon (IFN-γ), interleukin-2 (IL-2), and interleukin-4 (IL-4) were evaluated by ELISA analysis. Morphological changes of ovarian and uterus tissues were examined by HE staining and immunohistochemistry. The expression of Th1/Th2 cytokines of T cells in spleen and CD56+CD16− cells (uterine natural killer cells, uNK cells) in uterine was measured by flow cytometry (FCM) and immunohistochemistry. The expression of HOXA10 in uterine endometrium was examined by immunohistochemistry and RT-PCR analysis. The pinopodes of epithelial cells in uterine endometrium were examined by scanning electron microscopy. Results Following hUMSC transplantation, the serum levels of E2, P, and IL-4 were increased but FSH, IFN-γ, and IL-2 levels were decreased in POF mice. Also, the transplantation of hUMSCs caused an increase in total number of healthy follicles and decrease of atresia follicles. The expression of HOXA10 gene was significantly increased but the CD56+CD16− uNK cells decreased in the endometrium of uterine. The ratio of Th1/Th2 cytokines was also significantly decreased. Conclusion The data suggest that the recovery of ovarian function and endometrial receptivity in POF mice was regulated by the balance of Th1/Th2 cytokines and expression of uNK cells in the endometrium following hUMSC transplantation.
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Affiliation(s)
- Xueyan Lu
- College of Basic Medicine, Binzhou Medical University, Yantai, 264003, Shandong, China.,College of Basic Medicine & Institute of Reproductive Diseases, Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Jingjing Cui
- The Affiliated Hospital of Binzhou Medical University, Binzhou, 256600, Shandong, China
| | - Linlu Cui
- College of Basic Medicine, Binzhou Medical University, Yantai, 264003, Shandong, China.,College of Basic Medicine & Institute of Reproductive Diseases, Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Qianqian Luo
- College of Basic Medicine, Binzhou Medical University, Yantai, 264003, Shandong, China.,College of Basic Medicine & Institute of Reproductive Diseases, Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Qizhi Cao
- College of Basic Medicine, Binzhou Medical University, Yantai, 264003, Shandong, China
| | - Wendan Yuan
- College of Basic Medicine, Binzhou Medical University, Yantai, 264003, Shandong, China.
| | - Hongqin Zhang
- College of Basic Medicine, Binzhou Medical University, Yantai, 264003, Shandong, China. .,College of Basic Medicine & Institute of Reproductive Diseases, Binzhou Medical University, Yantai, 264003, Shandong, China.
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16
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Decreased Endometrial IL-10 Impairs Endometrial Receptivity by Downregulating HOXA10 Expression in Women with Adenomyosis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2549789. [PMID: 30687738 PMCID: PMC6330834 DOI: 10.1155/2018/2549789] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/24/2018] [Accepted: 12/11/2018] [Indexed: 01/29/2023]
Abstract
Objective The aim of this study was to investigate the potential role of IL-10 in regulating the receptivity marker HOXA10 in the endometrium of women with adenomyosis. Methods The expression levels of IL-10, HOXA-10, STAT3, and p-STAT3 in the endometrium of women with adenomyosis and controls were examined by means of western blotting and immunohistochemistry. The expression of the HOXA10 protein in Ishikawa cells treated with rIL-10 was examined by western blotting. The attachment rate of BeWo cell spheroids to Ishikawa cells treated with rIL-10 was expressed as a percentage of the total number of spheroids. Results The expression levels of HOXA10 and IL-10 in the adenomyosis group were significantly lower than those in the control group, and there was a positive correlation between HOXA10 and IL-10 protein levels in all the women examined. rIL-10 increased HOXA10 expression in a concentration- and time-dependent manner by inducing the phosphorylation of STAT3 in Ishikawa cells. Treatment with rIL-10 promoted the attachment of BeWo spheroids to Ishikawa cells, which was reversed by the inhibition of STAT3 phosphorylation. The expression of p-STAT3 in the adenomyosis group was significantly lower than that in the control group, and there was a positive correlation between IL-10 and p-STAT3 protein levels in all the women examined. Conclusions Both IL-10 and HOXA10 levels in the endometrium are significantly reduced in women with adenomyosis compared with those in control women. The phosphorylation of STAT3 has been proven to be a critical mediator between IL-10 and HOXA10, which may play critical roles in embryo implantation.
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17
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Signorile PG, Severino A, Santoro M, Spyrou M, Viceconte R, Baldi A. Methylation analysis of HOXA10 regulatory elements in patients with endometriosis. BMC Res Notes 2018; 11:722. [PMID: 30309386 PMCID: PMC6182800 DOI: 10.1186/s13104-018-3836-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 10/09/2018] [Indexed: 11/30/2022] Open
Abstract
Objective The pathogenesis of endometriosis is still mysterious, being retrograde menstruation and coelomic metaplasia the most accepted hypotheses. Recently, it has been proposed that endometriosis is caused by fine-tuning alterations of the female genital system development during the foetal life and that in utero exposition to endocrine disruptors can be one of the factors causing the disease, possibly acting on the methylation status of the genome. In this study, we have evaluated the methylation status of HOXA10 gene regulation regions in a cohort of 22 endometriosis patients respect to a control group of 6 healthy women. Results The methylation study was carried out on three CpG islands, previously described hypermethylated in the endometrium of endometriosis patients and include 22 CpG sites, 21 CpG sites and 10 CpG sites, respectively identified through the online platform MethPrimer. The analysis did not find significant differences between patients with endometriosis and healthy control individuals. These results confirm previous studies on genome wide methylation analysis in endometriosis patients. Therefore, other epigenetically altered genes should be considered more related to the pathogenesis of endometriosis.
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Affiliation(s)
| | - Anna Severino
- Fondazione Policlinico Universitario A. Gemelli-IRCCS, Rome, Italy
| | | | | | | | - Alfonso Baldi
- Fondazione Italiana Endometriosi, Rome, Italy. .,Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "L. Vanvitelli", Caserta, Italy.
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18
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Namiki T, Ito J, Kashiwazaki N. Molecular mechanisms of embryonic implantation in mammals: Lessons from the gene manipulation of mice. Reprod Med Biol 2018; 17:331-342. [PMID: 30377389 PMCID: PMC6194304 DOI: 10.1002/rmb2.12103] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 03/22/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Human infertility has become a serious and social issue all over the world, especially in developed countries. Numerous types of assisted reproductive technology have been developed and are widely used to treat infertility. However, pregnancy outcomes require further improvement. It is essential to understand the cross-talk between the uterus (mother) and the embryo (fetus) in pregnancy, which is a very complicated event. METHODS The mammalian uterus requires many physiological and morphological changes for pregnancy-associated events, including implantation, decidualization, placentation, and parturition, to occur. Here is discussed recent advances in the knowledge of the molecular mechanisms underlying these reproductive events - in particular, embryonic implantation and decidualization - based on original and review articles. MAIN FINDINGS RESULTS In mice, embryonic implantation and decidualization are regulated by two steroid hormones: estrogen and progesterone. Along with these hormones, cytokines, cell-cycle regulators, growth factors, and transcription factors have essential roles in implantation and decidualization in mice. CONCLUSION Recent studies using the gene manipulation of mice have given considerable insight into the molecular mechanisms underlying embryonic implantation and decidualization. However, as most of the findings are based on mice, comparative research using different mammalian species will be useful for a better understanding of the species-dependent differences that are associated with reproductive events, including embryonic implantation.
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Affiliation(s)
- Takafumi Namiki
- Laboratory of Animal ReproductionGraduate School of Veterinary ScienceAzabu UniversitySagamiharaJapan
| | - Junya Ito
- Laboratory of Animal ReproductionGraduate School of Veterinary ScienceAzabu UniversitySagamiharaJapan
- School of Veterinary MedicineAzabu UniversitySagamiharaJapan
| | - Naomi Kashiwazaki
- Laboratory of Animal ReproductionGraduate School of Veterinary ScienceAzabu UniversitySagamiharaJapan
- School of Veterinary MedicineAzabu UniversitySagamiharaJapan
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19
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Enciso M, Carrascosa JP, Sarasa J, Martínez-Ortiz PA, Munné S, Horcajadas JA, Aizpurua J. Development of a new comprehensive and reliable endometrial receptivity map (ER Map/ER Grade) based on RT-qPCR gene expression analysis. Hum Reprod 2018; 33:220-228. [DOI: 10.1093/humrep/dex370] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 11/30/2017] [Indexed: 01/07/2023] Open
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20
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Wang M, Hao C, Huang X, Bao H, Qu Q, Liu Z, Dai H, He S, Yan W. Aberrant Expression of lncRNA ( HOXA11-AS1) and Homeobox A ( HOXA9, HOXA10, HOXA11, and HOXA13) Genes in Infertile Women With Endometriosis. Reprod Sci 2017; 25:654-661. [PMID: 29017417 DOI: 10.1177/1933719117734320] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This study aimed to study the expression of homeobox (HOX)A11-AS1 ( HOXA11 antisense RNA) long noncoding RNA (lncRNA) and the expression of homeobox A ( HOXA9, HOXA10, HOXA11, and HOXA13) genes in the eutopic (EU) and ectopic (EC) endometria of women with peritoneal endometriosis. A total of 30 women undergoing laparoscopic surgery for peritoneal endometriosis and 15 infertile women without endometriosis were enrolled in this study. Peritoneal EC tissue samples were obtained through surgery. The EU tissues were obtained by curettage. The EC and EU lncRNA and messenger RNA (mRNA) expression levels were measured using real-time reverse transcriptase-polymerase chain reaction. The HOXA11-AS1 lncRNA and HOXA9, HOXA10, HOXA11, and HOXA13 mRNA were expressed at significantly lower levels in the EU than in the EC, that is, in women with peritoneal endometriosis ( P < .05). The expression levels of HOXA10 and HOXA11 in the EU were significantly lower in women with peritoneal endometriosis compared to the control group participants ( P < .05), whereas the levels of lncRNA ( HOXA11-AS1), HOXA9, and HOXA13 did not differ significantly between the 2 patient groups ( P > .05). In conclusion, the study findings suggest that HOXA11-AS1 lncRNA may play a role in the development of peritoneal endometriosis, but HOXA11-AS1 may not influence endometrial receptivity in endometriosis-associated infertility.
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Affiliation(s)
- Meimei Wang
- 1 Shandong University School of Medicine, Jinan, People's Republic of China.,2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Cuifang Hao
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Xin Huang
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Hongchu Bao
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Qinglan Qu
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Zhenteng Liu
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Huangguan Dai
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Shunzhi He
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
| | - Wei Yan
- 2 Reproductive Medicine Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, People's Republic of China
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21
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Suzuki S, Nakashima N, Kageyama M, Yamagata K. A phytoestrogen supplement prevents the altered gene expression associated with pregnancy implantation induced by IL-1β in endometrial epithelial cells. Reprod Biol 2017. [PMID: 28647515 DOI: 10.1016/j.repbio.2017.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Phytoestrogens stimulate expression of the uterine estrogen receptor and regulate uterine functions in reproductive tissues. However, comprehensive understanding of the beneficial impacts of phytoestrogens on uterine biology at the molecular level remains unexplored. Interleukin-1β (IL-1β) expression is increased in the inflamed decidua and is associated with first trimester pregnancy loss. AglyMax-Sup has the same composition as that of the phytoestrogen supplement AglyMax but with added vitamins and other components. Expression of genes associated with implantation may be enhanced by AglyMax-Sup compared with AglyMax. We tested the hypothesis that AglyMax-Sup has greater effects on implantation compared with AglyMax, using RT-PCR and Western blotting in the endometrial epithelial cell line. Furthermore, we investigated the protective effect of AglyMax-Sup on IL-1βinduced changes in estrogen-responsive gene expression in endometrial epithelial cells. The purpose of this study was to compare the effects of the phytoestrogen supplement AglyMax-Sup with those of AglyMax on estrogen-responsive gene expression. AglyMax and AglyMax-Sup significantly (p<0.05) induced gene expression of glycodelin-A, HoxA10, IL-11, LIF, MEG-E8 and TGFβ1. AglyMax-Sup induced high levels of these genes compared with the levels induced by AglyMax. The enhanced expression of LIF, IL-11, integrin αV, and HOXA10 induced by AglyMax-Sup was abolished by the ER antagonist fulvestrant and the ERK inhibitor PD98059. Meanwhile, IL-1β inhibited progesterone plus estrogen-induced TGFβ1, glycodelin-A, HOXA10, and integrin αV expression. IL-1β-induced suppression of these expression was reversed by AglyMax-Sup. These results indicate that expression of genes associated with implantation may be increased by AglyMax-Sup compared with AglyMax. AglyMax-Sup might abrogate IL-1β-mediated changes that can affect embryo implantation via the MAPK pathway.
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Affiliation(s)
- Sayaka Suzuki
- Department of Food Bioscience and Biotechnology, College of Bioresource Science, Nihon University (NUBS), Japan
| | | | | | - Kazuo Yamagata
- Department of Food Bioscience and Biotechnology, College of Bioresource Science, Nihon University (NUBS), Japan.
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Whitaker L, Murray A, Matthews R, Shaw G, Williams A, Saunders P, Critchley H. Selective progesterone receptor modulator (SPRM) ulipristal acetate (UPA) and its effects on the human endometrium. Hum Reprod 2017; 32:531-543. [PMID: 28130434 PMCID: PMC5400066 DOI: 10.1093/humrep/dew359] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 11/30/2016] [Accepted: 01/04/2017] [Indexed: 12/12/2022] Open
Abstract
STUDY QUESTION What is the impact of administration of the selective progesterone receptor modulator (SPRM), ulipristal acetate (UPA) on the endometrium of women with fibroids? SUMMARY ANSWER UPA administration altered expression of sex-steroid receptors and progesterone-regulated genes and was associated with low levels of glandular and stromal cell proliferation. WHAT IS KNOWN ALREADY Administration of all SPRM class members results in PAEC (progesterone receptor modulator associated endometrial changes). Data on the impact of the SPRM UPA administration on endometrial sex-steroid receptor expression, progesterone (P)-regulated genes and cell proliferation are currently lacking. STUDY DESIGN SIZE, DURATION Observational study with histological and molecular analyses to delineate impact of treatment with UPA on endometrium. Endometrial samples (n = 9) were collected at hysterectomy from women aged 39 to 49 with uterine fibroids treated with UPA (oral 5 mg daily) for 9-12 weeks. Control proliferative (n = 9) and secretory (n = 9) endometrium from women aged 38-52 with fibroids were derived from institutional tissue archives. PARTICIPANTS/MATERIALS, SETTING, METHODS Study setting was a University Research Institute. Endometrial biopsies were collected with institutional ethical approval and written informed consent. Concentrations of mRNAs encoded by steroid receptors, P-regulated genes and factors in decidualised endometrium were quantified with qRT-PCR. Immunohistochemistry was employed for localization of progesterone (PR, PRB), androgen (AR), estrogen (ERα) receptors and expression of FOXO1, HAND2, HOXA10, PTEN homologue. Endometrial glandular and stromal cell proliferation was objectively quantified using Ki67. MAIN RESULTS AND THE ROLE OF CHANCE UPA induced morphological changes in endometrial tissue consistent with PAEC. A striking change in expression patterns of PR and AR was detected compared with either proliferative or secretory phase samples. There were significant changes in pattern of expression of mRNAs encoded by IGFBP-1, FOXO1, IL-15, HAND2, IHH and HOXA10 compared with secretory phase samples consistent with low agonist activity in endometrium. Expression of mRNA encoded by FOXM1, a transcription factor implicated in cell cycle progression, was low in UPA-treated samples. Cell proliferation (Ki67 positive nuclei) was lower in samples from women treated with UPA compared with those in the proliferative phase. LARGE SCALE DATA N/A. LIMITATIONS REASONS FOR CAUTION A small number of well-characterized patients were studied in-depth. The impacts on morphology, molecular and cellular changes with SPRM, UPA administration on symptom control remains to be determined. WIDER IMPLICATIONS OF THE FINDINGS P plays a pivotal role in endometrial function. P-action is mediated through interaction with the PR. These data provide support for onward development of the SPRM class of compounds as effective long-term medical therapy for heavy menstrual bleeding. STUDY FUNDING/COMPETING INTEREST(S) H.O.D.C. received has clinical research support for laboratory consumables and staff from Bayer Pharma Ag and provides consultancy advice (no personal remuneration) for Bayer Pharma Ag, PregLem SA, Gedeon Richter, Vifor Pharma UK Ltd, AbbVie Inc.; A.R.W.W. has received consultancy payments from Bayer, Gedeon Richter, Preglem SA, HRA Pharma; L.H.R.W., A.A.M., R.M., G.S. and P.T.K.S. have no conflicts of interest. Study funded in part from each of: Medical Research Council (G1002033; G1100356/1; MR/N022556/1); National Health Institute for Health Research (12/206/520) and TENOVUS Scotland.
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Affiliation(s)
- L.H.R. Whitaker
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - A.A. Murray
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - R. Matthews
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - G. Shaw
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - A.R.W. Williams
- Division of Pathology, The University of Edinburgh, The Royal Infirmary of Edinburgh, 51 Little France Crescent, Edinburgh EH16 4SA, UK
| | - P.T.K. Saunders
- MRC Centre for Inflammation Research, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - H.O.D. Critchley
- MRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
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Abstract
The hormone estrogen is involved in both female and male reproduction, as well as numerous other biological systems including the neuroendocrine, vascular, skeletal, and immune systems. Therefore, it is also implicated in many different diseases and conditions such as infertility, obesity, osteoporosis, endometriosis, and a variety of cancers. Estrogen works through its two distinct nuclear receptors, estrogen receptor alpha (ERα) and estrogen receptor beta (ERβ). Various transcriptional regulation mechanisms have been identified as the mode of action for estrogen, mainly the classical mechanism with direct DNA binding but also a nongenomic mode of action and one using tethered or indirect binding. The expression profiles of ERα and ERβ are unique with the primary sites of ERα expression being the uterus and pituitary gland and the main site of ERβ expression being the granulosa cells of the ovary. Mouse models with knockout or mutation of Esr1 and Esr2 have furthered our understanding of the role of each individual receptor plays in physiology. From these studies, it is known that the primary roles for ERα are in the uterus and neuroendocrine system, as female mice lacking ERα are infertile due to impaired ovarian and uterine function, whereas female mice lacking ERβ are subfertile due to ovarian defects. The development of effective therapies for estrogen-related diseases has relied on an understanding of the physiological roles and mechanistic functionalities of ERα and ERβ in human health and disease.
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Affiliation(s)
- Katherine J Hamilton
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, NC, United States
| | - Sylvia C Hewitt
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, NC, United States
| | - Yukitomo Arao
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, NC, United States
| | - Kenneth S Korach
- Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences/NIH, Research Triangle Park, NC, United States.
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KOUKOURA OURANIA, SIFAKIS STAVROS, SPANDIDOS DEMETRIOSA. DNA methylation in endometriosis (Review). Mol Med Rep 2016; 13:2939-48. [PMID: 26934855 PMCID: PMC4805102 DOI: 10.3892/mmr.2016.4925] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 02/22/2016] [Indexed: 12/01/2022] Open
Abstract
Endometriosis is defined by the presence and growth of functional endometrial tissue, outside the uterine cavity, primarily in the ovaries, pelvic peritoneum and rectovaginal septum. Although it is a benign disease, it presents with malignant characteristics, such as invasion to surrounding tissues, metastasis to distant locations and recurrence following treatment. Accumulating evidence suggests that various epigenetic aberrations may play an essential role in the pathogenesis of endometriosis. Aberrant DNA methylation represents a possible mechanism repsonsible for this disease, linking gene expression alterations observed in endometriosis with hormonal and environmental factors. Several lines of evidence indicate that endometriosis may partially be due to selective epigenetic deregulations influenced by extrinsic factors. Previous studies have shed light into the epigenetic component of endometriosis, reporting variations in the epigenetic patterns of genes known to be involved in the aberrant hormonal, immunologic and inflammatory status of endometriosis. Although recent studies, utilizing advanced molecular techniques, have allowed us to further elucidate the possible association of DNA methylation with altered gene expression, whether these molecular changes represent the cause or merely the consequence of the disease is a question which remains to be answered. This review provides an overview of the current literature on the role of DNA methylation in the pathophysiology and malignant evolution of endometriosis. We also provide insight into the mechanisms through which DNA methylation-modifying agents may be the next step in the research of the pharmaceutical treatment of endometriosis.
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Affiliation(s)
- OURANIA KOUKOURA
- Department of Obstetrics and Gynecology, University Hospital of Larissa, Larissa 41500, Greece
| | - STAVROS SIFAKIS
- Department of Obstetrics and Gynecology, University Hospital of Heraklion, Heraklion 71003, Greece
| | - DEMETRIOS A. SPANDIDOS
- Laboratory of Clinical Virology, University of Crete Medical School, Heraklion 71409, Greece
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25
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Kulp JL, Mamillapalli R, Taylor HS. Aberrant HOXA10 Methylation in Patients With Common Gynecologic Disorders: Implications for Reproductive Outcomes. Reprod Sci 2016; 23:455-63. [PMID: 26865543 DOI: 10.1177/1933719116630427] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
HomeoboxA10 (HOXA10) is a transcription factor that is crucial for the development and patterning of the uterus during embryogenesis. In the adult endometrium, HOXA10 expression is regulated by steroid hormones and embryonic signals. Expression of sufficient HOXA10 messenger RNA is essential to endometrial receptivity and embryo implantation. Aberrant methylation is believed to alter the expression of HOXA10. Methylation of this gene may be associated with decreased fertility, implantation defects, and/or reproductive wastage seen in certain disease states that affect the female reproductive tract. This study describes the differences in methylation patterns of HOXA10 gene in uterine myomas, endometriosis, uterine septum, Asherman syndrome, or uterine polyps of women undergoing hysteroscopic surgery. In the endometrium of uteri with polyps, submucosal myomas, and intramural myomas, there were CpG sites within the HOXA10 gene that were highly methylated compared to controls. The HOXA10 gene in women with endometriosis was hypomethylated compared to controls. DNA methylation may be a common molecular mechanism that results in reproductive dysfunction seen in gynecologic disease.
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Affiliation(s)
- Jennifer L Kulp
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Ramanaiah Mamillapalli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
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26
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Chen C, Yan Q, Liu K, Zhou X, Xian Y, Liang D, Zhao X, Guo X, Quan S. Endometrial Receptivity Markers in Mice Stimulated With Raloxifene Versus Clomiphene Citrate and Natural Cycles. Reprod Sci 2015; 23:748-55. [PMID: 26603317 DOI: 10.1177/1933719115616496] [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] [Indexed: 11/15/2022]
Abstract
Ovulation induction therapy with clomiphene citrate can suppress endometrial receptivity. Raloxifene may be an alternative therapeutic for women with ovulatory disorders. This study aimed to compare the expression of endometrial receptivity markers, including homeobox gene 10 (HOXA10), integrin β3, and leukemia inhibitory factor (LIF), as well as pinopode production during the implantation window in mice stimulated with raloxifene and clomiphene citrate and natural cycles. Thirty-six 8-week-old female Kunming mice were randomly divided into 3 groups (n = 12) and administered daily raloxifene (22 mg/kg), clomiphene citrate (18 mg/kg), and normal saline (1 mL), respectively, by gavage. Two days later, mice were injected with 5 IU human chorionic gonadotropin and mated. Successfully mated female animals were identified with vaginal plugs designated gestation day 1. At day 4.5, pregnant donor mice were euthanized, and uterus samples were collected for immunohistochemistry, quantitative polymerase chain reaction, Western blot, and scanning electron microscopy analyses. Homeobox gene 10, integrin β3, and LIF messenger RNA (mRNA) and protein levels were significantly higher in the raloxifene-treated animals compared with the clomiphene citrate group (all P < .05) but not significantly different from saline group values, except for LIF and integrin β3 mRNA levels (P < .05). Pinopodes were abundant and well developed in the raloxifene and saline groups; however, in the clomiphene citrate-treated mice, fewer and poorly developed pinopodes were obtained. In mice, raloxifene had no effect on HOXA10, integrin β3, and LIF expression as well as pinopode production, suggesting it has no adverse effects on endometrial receptivity. Raloxifene may provide a viable alternative oral ovulation induction agent to clomiphene citrate.
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Affiliation(s)
- Cairong Chen
- Reproductive Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China Reproductive Medicine Center, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Qiuxia Yan
- Reproductive Medicine Center, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Kunping Liu
- Department of Pathology, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Xiuqin Zhou
- Reproductive Medicine Center, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Yingjie Xian
- Reproductive Medicine Center, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Dali Liang
- Department of Laboratory, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Xiaoying Zhao
- Reproductive Medicine Center, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Xiaoyan Guo
- Department of Gynaecology and Obstetrics, People's Hospital of Qingyuan, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan, China
| | - Song Quan
- Reproductive Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, China
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27
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Naqvi H, Mamillapalli R, Krikun G, Taylor HS. Endometriosis Located Proximal to or Remote From the Uterus Differentially Affects Uterine Gene Expression. Reprod Sci 2015; 23:186-91. [PMID: 26516123 DOI: 10.1177/1933719115613449] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The mechanisms that lead to the altered uterine gene expression in women with endometriosis are poorly understood. Are these changes in gene expression mediated by proximity to endometriotic lesions or is endometriosis a systemic disease where the effect is independent of proximity to the uterus? To answer this question, we created endometriosis in a murine model either in the peritoneal cavity (proximal) or at a subcutaneous remote site (distal). The expression of several genes that are involved in endometrial receptivity (homeobox A10 [Hoxa10], homeobox A11 [Hoxa11], insulin-like growth factor binding protein 1 [Igfbp1], Kruppel-like factor 9 [Klf9], and progesterone receptor [Pgr]) was measured in the eutopic endometrium of mice transplanted with either proximal or distal endometriosis lesions. Decreased expression of Hoxa10, Igfbp1, Klf9, and total Pgr genes was observed in the eutopic endometrium of mice with peritoneal endometriosis. In the mice with distal lesions, overall expression of these genes was not as severely affected, however, Igfbp1 expression was similarly decreased and the effect on Pgr was more pronounced. Endometriosis does have a systemic effect that varies with distance to the end organ. However, even remote disease selectively and profoundly alters the expression of genes such as Pgr. This is the first controlled experiment demonstrating that endometriosis is not simply a local peritoneal disease. Selective alteration of genes critical for endometrial receptivity and endometriosis propagation may be systemic. Similarly, systemic effects of endometriosis on other organs may also be responsible for the widespread manifestations of the disease.
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Affiliation(s)
- Hanyia Naqvi
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Ramanaiah Mamillapalli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Graciela Krikun
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
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28
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Lin R, Zhao C, Jing L, Zhao S. Identification of LncRNAs/mRNAs related to endometrium function regulated by Homeobox A10 in Ishikawa cells. Cell Biol Int 2015; 39:842-51. [PMID: 25757424 DOI: 10.1002/cbin.10458] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 03/02/2015] [Indexed: 12/26/2022]
Abstract
As a well-known transcription factor, Homeobox A10 (HOXA10) regulates a large number of downstream target genes, leading to the proper function development of endometrium for embryo implantation. The change of HOXA10 gene expression level can alter the expressions of many other genes, including coding and noncoding transcripts. In our study, mRNA and LncRNA expression profiles screening was performed by microarray when the HOXA10 gene expression level increased in Ishikawa cells. A total of 907 mRNAs and 1,026 LncRNAs were identified as differentially expressed transcripts (Fold Change ≥2, P-value <0.05, and Q-value <0.05) between HOXA10 overexpressed and control Ishikawa cells. Further analysis identified that these mRNAs participated in various biological processes, such as blood vessel development, cell adhesion, cell cycle, etc. Also, 14 enhancer-like LncRNAs and 108 LincRNAs with their nearby mRNAs were identified as coregulated transcripts. Our results showed that the mRNA and LncRNA expression profiles differed significantly between the two groups and provided useful information for further studying the molecular mechanisms of HOXA10 in endometrium.
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Affiliation(s)
- Ruiyi Lin
- Key Lab of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education, Wuhan, 430070, China
| | - Changzhi Zhao
- Key Lab of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education, Wuhan, 430070, China
| | - Lu Jing
- Key Lab of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education, Wuhan, 430070, China
| | - Shuhong Zhao
- Key Lab of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education, Wuhan, 430070, China.,The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan, 430070, China
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29
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Gellersen B, Brosens JJ. Cyclic decidualization of the human endometrium in reproductive health and failure. Endocr Rev 2014; 35:851-905. [PMID: 25141152 DOI: 10.1210/er.2014-1045] [Citation(s) in RCA: 626] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Decidualization denotes the transformation of endometrial stromal fibroblasts into specialized secretory decidual cells that provide a nutritive and immunoprivileged matrix essential for embryo implantation and placental development. In contrast to most mammals, decidualization of the human endometrium does not require embryo implantation. Instead, this process is driven by the postovulatory rise in progesterone levels and increasing local cAMP production. In response to falling progesterone levels, spontaneous decidualization causes menstrual shedding and cyclic regeneration of the endometrium. A growing body of evidence indicates that the shift from embryonic to maternal control of the decidual process represents a pivotal evolutionary adaptation to the challenge posed by invasive and chromosomally diverse human embryos. This concept is predicated on the ability of decidualizing stromal cells to respond to individual embryos in a manner that either promotes implantation and further development or facilitates early rejection. Furthermore, menstruation and cyclic regeneration involves stem cell recruitment and renders the endometrium intrinsically capable of adapting its decidual response to maximize reproductive success. Here we review the endocrine, paracrine, and autocrine cues that tightly govern this differentiation process. In response to activation of various signaling pathways and genome-wide chromatin remodeling, evolutionarily conserved transcriptional factors gain access to the decidua-specific regulatory circuitry. Once initiated, the decidual process is poised to transit through distinct phenotypic phases that underpin endometrial receptivity, embryo selection, and, ultimately, resolution of pregnancy. We discuss how disorders that subvert the programming, initiation, or progression of decidualization compromise reproductive health and predispose for pregnancy failure.
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Affiliation(s)
- Birgit Gellersen
- Endokrinologikum Hamburg (B.G.), 20251 Hamburg, Germany; and Division of Reproductive Health (J.J.B.), Warwick Medical School, University of Warwick, Coventry CV4 7AL, United Kingdom
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30
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Bombard DS, Mousa SA. Mayer-Rokitansky-Kuster-Hauser syndrome: complications, diagnosis and possible treatment options: a review. Gynecol Endocrinol 2014; 30:618-23. [PMID: 24948340 DOI: 10.3109/09513590.2014.927855] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is a disorder in women that presents as Mullerian agenesis. These patients present internal genitalia abnormalities that include the absence of a uterus and the upper two-thirds of the vagina. In this review, current diagnostic methods, accompanying complications (congenital and psychological) and non-surgical and surgical treatments are summarized. Ultrasound and MRI have been the most documented options in MRKH syndrome diagnosis. Many women with MRKH syndrome have renal, skeletal, hearing or cardiac congenital anomalies and increased levels of psychological distress. Non-surgical interventions can be used to create a sexually functional neovagina through vaginal dilation, and surgical interventions provide alternate methods of creating a neovagina. Additionally, vaginal tissue engineering and gene therapy might provide more effective approaches in solving MRKH syndrome.
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Affiliation(s)
- David S Bombard
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences , Rensselaer, NY , USA
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31
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Andersson KL, Bussani C, Fambrini M, Polverino V, Taddei GL, Gemzell-Danielsson K, Scarselli G. DNA methylation of HOXA10 in eutopic and ectopic endometrium. Hum Reprod 2014; 29:1906-11. [PMID: 24963168 DOI: 10.1093/humrep/deu161] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
STUDY QUESTION Does the methylation status of the promoter region of the HOXA10 gene differ in eutopic and ectopic endometrium? SUMMARY ANSWER The eutopic endometrium in women with endometriosis is significantly more methylated when compared with controls. WHAT IS KNOWN ALREADY Expression of the HOXA10 gene, which is important for successful implantation, is reduced in women affected by endometriosis. STUDY DESIGN, SIZE AND DURATION A pilot study was carried out including 18 women admitted for surgery for endometriosis-related pain (cases) and 12 women admitted for surgery because of non-endometriotic disease (control). Sample collection and analysis were performed between November 2010 and July 2013. PARTICIPANTS/MATERIALS, SETTING, METHODS Endometrial tissue (eutopic and ectopic) underwent sodium bisulfite DNA modification, PCR amplification of two regions of the HOXA10 promoter and pyrosequencing analysis. MAIN RESULTS AND THE ROLE OF CHANCE The eutopic endometrium of women with endometriosis was significantly more methylated compared with endometrium from the control group (sequence 1: 8.68% in cases and 6.25% in the control group: P = 0.037, sequence 2: 11.89% in cases and 9.25% in the control group: P = 0.032). The eutopic endometrium was significantly more methylated than the ectopic tissue in patients with endometriosis (mean difference -3.6 sequence 1: P = 0.001 and -6.0 sequence 2: P = 0.0001). LIMITATIONS, REASONS FOR CAUTION The study had a limited sample size and the fertility status of the majority of patients in our study was unknown. WIDER IMPLICATIONS OF THE FINDINGS Our data regarding methylation state of the ectopic tissues contribute to a better etiopathologic understanding of endometriosis. STUDY FUNDING/COMPETING INTERESTS No external funding was either sought or obtained for this study. The authors have no conflicts of interests to declare.
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Affiliation(s)
- K L Andersson
- ISPO Cancer Prevention and Research Institute, Via Cosimo Il Vecchio 2, Florence 50139, Italy Department of Women's and Children's Health, Division of Obstetrics and Gynaecology, Karolinska Institutet/Karolinska University Hospital, Solna 17176, Sweden
| | - C Bussani
- Department of Biomedical, Experimental and Clinical Sciences, Gynaecology and Obstetrics Unit, University of Florence, Florence 50134, Italy
| | - M Fambrini
- Department of Biomedical, Experimental and Clinical Sciences, Gynaecology and Obstetrics Unit, University of Florence, Florence 50134, Italy
| | - V Polverino
- Department of Biomedical, Experimental and Clinical Sciences, Gynaecology and Obstetrics Unit, University of Florence, Florence 50134, Italy
| | - G L Taddei
- Department of Human Pathology and Oncology, University of Florence, Florence 50134, Italy
| | - K Gemzell-Danielsson
- Department of Women's and Children's Health, Division of Obstetrics and Gynaecology, Karolinska Institutet/Karolinska University Hospital, Solna 17176, Sweden
| | - G Scarselli
- Department of Biomedical, Experimental and Clinical Sciences, Gynaecology and Obstetrics Unit, University of Florence, Florence 50134, Italy
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32
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Jiang Y, Yan G, Zhang H, Shan H, Kong C, Yan Q, Xue B, Diao Z, Hu Y, Sun H. Activation of matrix metalloproteinase-26 by HOXA10 promotes embryo adhesion in vitro. Biochem Biophys Res Commun 2014; 445:622-8. [DOI: 10.1016/j.bbrc.2014.02.057] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/12/2014] [Indexed: 01/21/2023]
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Xu B, Geerts D, Bu Z, Ai J, Jin L, Li Y, Zhang H, Zhu G. Regulation of endometrial receptivity by the highly expressed HOXA9, HOXA11 and HOXD10 HOX-class homeobox genes. Hum Reprod 2014; 29:781-90. [PMID: 24549215 DOI: 10.1093/humrep/deu004] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
STUDY QUESTION Are other HOX genes, in addition to HOXA10, involved in endometrial receptivity? SUMMARY ANSWER The highly expressed HOXA9, HOXA11 and HOXD10 genes also appear to be involved in endometrial receptivity. WHAT IS KNOWN ALREADY Within the HOX family of homeobox transcription factor genes are the leading candidates for the regulation of embryonic implantation. A crucial role of HOXA10 in endometrial receptivity has been well established. STUDY DESIGN, SIZE, DURATION To identify HOX candidate genes, we performed data mining on all 39 human HOX genes in the 'Human body index' gene expression database of normal human tissue. The temporal and spatial expression pattern of four highly expressed HOX genes in the human endometrium was determined. To further investigate the function of these Hox genes, we used a robust in vivo mouse model in which we blocked maternal Hox gene expression. PARTICIPANTS/MATERIALS, SETTING AND METHODS Analysis of a gene expression profile set in the public domain consisting of 504 samples representing 95 different normal human tissues, showed that in addition to HOXA10, also HOXA9, HOXA11, HOXB6 and HOXD10 mRNA showed increased expression in the human endometrium (16 samples). The temporal and spatial expression pattern of these four HOX genes throughout the menstrual cycle was determined in the endometrium from 27 female patients eligible for IVF-embryo transfer with a normal cycle by quantitative real-time PCR (qRT-PCR), western blot and immunohistochemistry. The role of maternal Hoxa9, Hoxa11 and Hoxd10 was assessed in a mouse implantation model by expression knockdown using RNA interference. Forty mice were transfected with Hoxa9-, Hoxa11- or Hoxd10-specific small hairpin RNA (shRNA) constructs or a vector control by injection into the uterine horn at Day 2 after vaginal plug detection (Day 1) (160 mice in total). The effects were examined by qRT-PCR and western blot at Day 4 and litter sizes counted at Day 9 of pregnancy. MAIN RESULTS AND THE ROLE OF CHANCE HOXA10, HOXA9, HOXA11 and HOXD10 all showed increased expression during the mid-secretory phase of the menstrual cycle (P < 0.01). Knockdown of Hoxa9, Hoxa11 and Hoxd10 in the murine uterus resulted in significantly reduced average implantation rates (P < 0.01) and, with regard to four Hox target genes, also correlated with a significantly increased empty spiracles homolog 2 (Emx2) and insulin-like growth factor binding protein-1 (Igfbp1), and decreased integrin β3 (Itgb3) and leukemia inhibitory factor (Lif), expression (P < 0.01). LIMITATIONS, REASONS FOR CAUTION Menstrual cycle stage was not confirmed by serum hormone analysis. We verified the absence of significant differences in stage-specific expression of the reference genes used in our study (ACTB/Actb and GAPDH/Gapdh) and therefore possible limitations of this approach were minimized. In addition, the translatability of our data from a mouse model to patients needs to be investigated further. WIDER IMPLICATIONS OF THE FINDINGS We provide evidence that three other HOX genes in addition to HOXA10 are involved in endometrial receptivity, and that part of their function is asserted through several known HOX target genes, suggesting the presence of a central HOX signal transduction pathway.
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Affiliation(s)
- Bei Xu
- Reproductive Medicine Center, Tongji Hospital, Tongji Medicine College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan 430030, People's Republic of China
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Kallen AN, Haines K, Taylor HS. HOXA10 Regulates Expression of Cytokeratin 15 in Endometrial Epithelial Cytoskeletal Remodeling. Reprod Sci 2014; 21:892-897. [PMID: 24532216 DOI: 10.1177/1933719113519168] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The mammalian cytoskeleton is composed in part from keratin filaments which form a complex, highly dynamic intracellular network. We investigate the expression of cytokeratin 15 (CK15) in human endometrium and its regulation by HOXA10 in the human endometrial cell lines. METHODS Endometrial biopsies from throughout the menstrual cycle (N = 32) were evaluated for CK15 protein expression by immunohistochemistry using a mouse monoclonal antibody. The human endometrial epithelial cell line (Ishikawa) was transfected with pcDNA/HOXA10. Total RNA was isolated and quantitative real-time polymerase chain reaction was performed to determine expression levels of CK15. RESULTS In the peri-implantation window (days 16 through 23) CK15 protein expression in glandular epithelium of human endometrium decreased to 50% of proliferative phase expression levels. Expression of CK15 messenger RNA decreased by 99% (P < .05) after pcDNA/HOXA10 transfection of Ishikawa cells. The CK15 expression corresponded to the time of maximal secretory epithelial remodeling. CONCLUSION Gene expression of CK15 is decreased in a HOXA10-dependent fashion in human endometrial epithelial cells. Expression decreases in the peri-implantation period concurrent with maximal HOXA10 expression. Dramatic changes in cellular architecture are necessary to achieve the secretory changes in the endometrial epithelium that bring about the implantation window. Alterations in CK15 likely facilitate these cytoskeletal changes, ultimately promoting endometrial receptivity.
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Affiliation(s)
- Amanda N Kallen
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Kaitlin Haines
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
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Calhoun KC, Padilla-Banks E, Jefferson WN, Liu L, Gerrish KE, Young SL, Wood CE, Hunt PA, Vandevoort CA, Williams CJ. Bisphenol A exposure alters developmental gene expression in the fetal rhesus macaque uterus. PLoS One 2014; 9:e85894. [PMID: 24465770 PMCID: PMC3900442 DOI: 10.1371/journal.pone.0085894] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 12/02/2013] [Indexed: 11/17/2022] Open
Abstract
Bisphenol A (BPA) exposure results in numerous developmental and functional abnormalities in reproductive organs in rodent models, but limited data are available regarding BPA effects in the primate uterus. To determine if maternal oral BPA exposure affects fetal uterine development in a non-human primate model, pregnant rhesus macaques carrying female fetuses were exposed orally to 400 µg/kg BPA or vehicle control daily from gestation day (GD) 50-100 or GD100-165. Fetal uteri were collected at the completion of treatment (GD100 or GD165); tissue histology, cell proliferation, and expression of estrogen receptor alpha (ERα) and progesterone receptor (PR) were compared to that of controls. Gene expression analysis was conducted using rhesus macaque microarrays. There were no significant differences in histology or in the percentage of cells expressing the proliferation marker Ki-67, ERα, or PR in BPA-exposed uteri compared to controls at GD100 or GD165. Minimal differences in gene expression were observed between BPA-exposed and control GD100 uteri. However, at GD165, BPA-exposed uteri had significant differences in gene expression compared to controls. Several of the altered genes, including HOXA13, WNT4, and WNT5A, are critical for reproductive organ development and/or adult function. We conclude that second or third trimester BPA exposure does not significantly affect fetal uterus development based on morphological, proliferation, and steroid hormone receptor assessments. However, differences in expression of key developmental genes after third trimester exposure suggest that BPA could alter transcriptional signals influencing uterine function later in life.
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Affiliation(s)
- Kathryn C Calhoun
- Reproductive Medicine Group, Laboratory of Reproductive & Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America ; Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Elizabeth Padilla-Banks
- Reproductive Medicine Group, Laboratory of Reproductive & Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
| | - Wendy N Jefferson
- Reproductive Medicine Group, Laboratory of Reproductive & Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
| | - Liwen Liu
- Microarray Group, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
| | - Kevin E Gerrish
- Microarray Group, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
| | - Steven L Young
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, United States of America
| | - Charles E Wood
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - Patricia A Hunt
- School of Molecular Biosciences, Washington State University, Pullman, Washington, United States of America
| | - Catherine A Vandevoort
- Department of Obstetrics and Gynecology and California National Primate Research Center, University of California Davis, Davis, California, United States of America
| | - Carmen J Williams
- Reproductive Medicine Group, Laboratory of Reproductive & Developmental Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
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Aghajanova L, Simón C, Horcajadas JA. Are favorite molecules of endometrial receptivity still in favor? ACTA ACUST UNITED AC 2014. [DOI: 10.1586/17474108.3.4.487] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Melford SE, Taylor AH, Konje JC. Of mice and (wo)men: factors influencing successful implantation including endocannabinoids. Hum Reprod Update 2013; 20:415-28. [DOI: 10.1093/humupd/dmt060] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Sirayapiwat P, Triratanachat S, Tantbirojn P, Ruangvejvorachai P, Suwajanakorn S. HOXA10 protein expression in the endometrium of normally menstruating women after receiving GnRH antagonist. Eur J Obstet Gynecol Reprod Biol 2013; 169:321-5. [PMID: 23541416 DOI: 10.1016/j.ejogrb.2013.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 01/26/2013] [Accepted: 03/01/2013] [Indexed: 12/11/2022]
Abstract
OBJECTIVE(S) To compare HOXA10 protein expression in the endometrium between natural control cycles and GnRH antagonist-treated cycles obtained during the window of implantation of normally menstruating women. STUDY DESIGN This study was conducted at the Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand. Thirty-five volunteers were recruited into this prospective, self-controlled study, which was divided into two cycles, the first a natural control cycle and the second a GnRH antagonist-treated cycle. The two cycles were separated by one resting cycle. In the GnRH antagonist-treated cycle, when the leading follicle was 15 mm, ganirelix (Orgalutran®) 0.25mg was administered daily. In both cycles, ovulation was induced when the largest follicle reached 18 mm in diameter. Finally, endometrial biopsy was performed on day 6 after documented ovulation, which corresponds to the window of implantation. Endometrial HOXA10 protein expression, a marker of endometrial receptivity, was analyzed by immunohistochemistry. The protein expression was compared between the two cycles regarding their percentage of immunostained cells and IHC-scores (percentage of stained cells×intensity of nuclear staining). RESULTS HOXA10 protein was exclusively localized in the stromal compartment of the endometrium. The percentage of HOXA10 nuclear staining in the endometrium collected from GnRH antagonist-treated cycles was higher than that of the natural cycles, whereas the IHC-scores showed no difference between the two cycles. CONCLUSION(S) GnRH antagonists may have no effect on HOXA10 protein expression in the endometrium obtained during the implantation window of normally menstruating women.
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Affiliation(s)
- Porntip Sirayapiwat
- Infertility Unit, Reproductive Medicine Division, Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Rama IV Road, Bangkok, Thailand.
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Stilley JAW, Birt JA, Sharpe-Timms KL. Cellular and molecular basis for endometriosis-associated infertility. Cell Tissue Res 2013; 349:849-62. [PMID: 22298022 PMCID: PMC3429772 DOI: 10.1007/s00441-011-1309-0] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 12/06/2011] [Indexed: 11/28/2022]
Abstract
Endometriosis is a gynecological disease characterized by the presence of endometrial glandular epithelial and stromal cells growing in the extra-uterine environment. The disease afflicts 10%–15% of menstruating women causing debilitating pain and infertility. Endometriosis appears to affect every part of a woman’s reproductive system including ovarian function, oocyte quality, embryo development and implantation, uterine function and the endocrine system choreographing the reproductive process and results in infertility or spontaneous pregnancy loss. Current treatments are laden with menopausal-like side effects and many cause cessation or chemical alteration of the reproductive cycle, neither of which is conducive to achieving a pregnancy. However, despite the prevalence, physical and psychological tolls and health care costs, a cure for endometriosis has not yet been found. We hypothesize that endometriosis causes infertility via multifaceted mechanisms that are intricately interwoven thereby contributing to our lack of understanding of this disease process. Identifying and understanding the cellular and molecular mechanisms responsible for endometriosis-associated infertility might help unravel the confounding multiplicities of infertility and provide insights into novel therapeutic approaches and potentially curative treatments for endometriosis.
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Affiliation(s)
- Julie A W Stilley
- Division of Reproductive and Perinatal Research, Department of Obstetrics, Gynecology and Women's Health, The University of Missouri School of Medicine, Columbia, 65212, USA
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Zhang S, Lin H, Kong S, Wang S, Wang H, Wang H, Armant DR. Physiological and molecular determinants of embryo implantation. Mol Aspects Med 2013; 34:939-80. [PMID: 23290997 DOI: 10.1016/j.mam.2012.12.011] [Citation(s) in RCA: 346] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/25/2012] [Accepted: 12/26/2012] [Indexed: 01/19/2023]
Abstract
Embryo implantation involves the intimate interaction between an implantation-competent blastocyst and a receptive uterus, which occurs in a limited time period known as the window of implantation. Emerging evidence shows that defects originating during embryo implantation induce ripple effects with adverse consequences on later gestation events, highlighting the significance of this event for pregnancy success. Although a multitude of cellular events and molecular pathways involved in embryo-uterine crosstalk during implantation have been identified through gene expression studies and genetically engineered mouse models, a comprehensive understanding of the nature of embryo implantation is still missing. This review focuses on recent progress with particular attention to physiological and molecular determinants of blastocyst activation, uterine receptivity, blastocyst attachment and uterine decidualization. A better understanding of underlying mechanisms governing embryo implantation should generate new strategies to rectify implantation failure and improve pregnancy rates in women.
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Affiliation(s)
- Shuang Zhang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; Graduate School of the Chinese Academy of Sciences, Beijing 100039, PR China
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Wu D, Song D, Li X, Yu M, Li C, Zhao S. Molecular characterization and identification of the E2/P4 response element in the porcine HOXA10 gene. Mol Cell Biochem 2012; 374:213-22. [DOI: 10.1007/s11010-012-1522-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 11/08/2012] [Indexed: 10/27/2022]
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Santamaria X, Massasa EE, Taylor HS. Migration of cells from experimental endometriosis to the uterine endometrium. Endocrinology 2012; 153:5566-74. [PMID: 22968642 PMCID: PMC3473215 DOI: 10.1210/en.2012-1202] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 08/21/2012] [Indexed: 11/19/2022]
Abstract
Endometriosis is the estrogen-dependent growth of endometrial tissue outside the uterus. Endometriosis has an effect on the eutopic endometrium; however, the nature of the cellular or molecular signal from the lesion to the uterus is unknown. Here we demonstrate that cells migrate from endometriosis to eutopic endometrium. Experimental endometriosis was established by transplanting endometrial tissue from green fluorescent protein (GFP) mice to the peritoneal cavity of DS-Red mice. Immunofluorescence (IF) identified cells from the ectopic lesions in the uterus. The eutopic endometrial cells were sorted by fluorescence activated cell sorting, and the GFP(+)/DS-Red(-) population was characterized using microarray analysis. The results of cell sorting as well as the array results were confirmed by quantitative PCR and IF. GFP(+)/DS-red(-)/Cd45(-) cells were identified in the eutopic endometrium of mice with experimental endometriois (∼1.8%) and not in controls. Global gene expression profiling of these cells showed absence of leukocyte and increased expression of pan-epithelial markers in the uterine GFP(+) cells. Moreover, GFP(+) cells showed up-regulation of Wnt7A expression and 17 other genes associated with the Wingless pathway. Several genes that are associated with epithelial-to-mesenchymal transition were also highly differentially expressed in GFP(+) cells. IF confirmed the presence of the GFP(+)/CD45(-)/Wnt7a(+)/cytokeritin(+) cells in the endometrium of endometriotic animals, and not in controls. Cells from endometriotic lesions are capable of migrating to the eutopic endometrium. The ectopic expression of Wnt7A suggests a possible mechanism by which ectopic lesions affect the eutopic endometrium and interfere with embryo implantation and fertility.
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Affiliation(s)
- Xavier Santamaria
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, Connecticut 06520, USA
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Fischer CP, Kayisili U, Taylor HS. HOXA10 expression is decreased in endometrium of women with adenomyosis. Fertil Steril 2011; 95:1133-6. [PMID: 21067721 PMCID: PMC3053130 DOI: 10.1016/j.fertnstert.2010.09.060] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 09/26/2010] [Accepted: 09/30/2010] [Indexed: 12/26/2022]
Abstract
HOXA10 gene expression is decreased in the secretory phase endometrium of women with adenomyosis. Diminished expression of HOXA10 is a potential mechanism explaining decreased implantation observed in women with adenomyosis.
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Affiliation(s)
- Catha P. Fischer
- Division of Reproductive Endocrinology and Infertility, Yale University
| | - Umit Kayisili
- Division of Reproductive Endocrinology and Infertility, Yale University
| | - Hugh S. Taylor
- Division of Reproductive Endocrinology and Infertility, Yale University
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Sadeghi H, Taylor HS. HOXA10 regulates endometrial GABAA {pi} receptor expression and membrane translocation. Am J Physiol Endocrinol Metab 2010; 298:E889-93. [PMID: 20103740 PMCID: PMC3774337 DOI: 10.1152/ajpendo.00577.2009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Expression of the GABA(A) pi receptor has been described previously in the human endometrium in both luminal epithelium and stroma. Its expression is increased during decidualization in rodents and in the implantation window of human endometrium. Here we localized GABA pi subunit receptor protein in human endometrium and identified regulators of gene expression and activation. GABA(A) pi was localized to the cell surface, and expression increased during the window of embryo implantation in human endometrium. The well-differentiated human endometrial adenocarcinoma cell line Ishikawa was treated with progesterone and transfected with pcDNA-HOXA10, HOXA10 siRNA, or respective controls. GABA(A) pi receptor mRNA expression was evaluated by real-time RT-PCR. Protein expression and localization were evaluated using immunofluorescence. GABA(A) pi receptor mRNA expression was increased significantly after either progesterone treatment or HOXA10 transfection. Coadministration of progesterone along with HOXA10 transfection had no additional effect on the expression of GABA(A) pi receptor mRNA over either agent alone. Blocking HOXA10 expression with siRNA prevented progesterone-induced GABA(A) pi receptor mRNA expression. Additionally, either HOXA10 or progesterone independently caused increased translocation of the GABA receptor from the cytoplasm to the cell membrane. Translocation in response to progesterone was blocked with HOXA10 siRNA. Progesterone-induced GABA(A) pi subunit receptor expression is likely mediated indirectly through progesterone's regulation of HOXA10 expression. Modification of subtype composition and translocation of the GABA receptor ion channel likely modulate endometrial receptivity. Whereas HOXA10 typically enhances the expression of progesterone-responsive genes, here HOXA10 expression leads to production of a less progestin-responsive GABA receptor subtype, likely buffering the effects of luteal phase progesterone on GABA receptor activity.
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Affiliation(s)
- Homayoun Sadeghi
- Dept. of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, New Haven, CT 06520, USA
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Bromer JG, Zhou Y, Taylor MB, Doherty L, Taylor HS. Bisphenol-A exposure in utero leads to epigenetic alterations in the developmental programming of uterine estrogen response. FASEB J 2010; 24:2273-80. [PMID: 20181937 DOI: 10.1096/fj.09-140533] [Citation(s) in RCA: 196] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Bisphenol-A (BPA) is a nonsteroidal estrogen that is ubiquitous in the environment. The homeobox gene Hoxa10 controls uterine organogenesis, and its expression is affected by in utero BPA exposure. We hypothesized that an epigenetic mechanism underlies BPA-mediated alterations in Hoxa10 expression. We analyzed the expression pattern and methylation profile of Hoxa10 after in utero BPA exposure. Pregnant CD-1 mice were treated with BPA (5 mg/kg IP) or vehicle control on d 9-16 of pregnancy. Hoxa10 mRNA and protein expression were increased by 25% in the reproductive tract of mice exposed in utero. Bisulfite sequencing revealed that cytosine-guanine dinucleotide methylation was decreased from 67 to 14% in the promoter and from 71 to 3% in the intron of Hoxa10 after in utero BPA exposure. Decreased DNA methylation led to an increase in binding of ER-alpha to the Hoxa10 ERE both in vitro as and in vivo as determined by EMSA and chromatin immunoprecipitation, respectively. Diminished methylation of the ERE-containing promoter sequence resulted in an increase in ERE-driven gene expression in reporter assays. We identify altered methylation as a novel mechanism of BPA-induced altered developmental programming. Permanent epigenetic alteration of ERE sensitivity to estrogen may be a general mechanism through which endocrine disruptors exert their action.
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Affiliation(s)
- Jason G Bromer
- Department of Obstetrics, Gynecology, and Reproductive Sciences, Yale University School of Medicine, 333 Cedar St., New Haven, CT 06520, USA
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Sarno J, Schatz F, Huang SJ, Lockwood C, Taylor HS. Thrombin and interleukin-1beta decrease HOX gene expression in human first trimester decidual cells: implications for pregnancy loss. Mol Hum Reprod 2009; 15:451-7. [PMID: 19389728 PMCID: PMC2722817 DOI: 10.1093/molehr/gap030] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2006] [Revised: 03/26/2009] [Accepted: 04/02/2009] [Indexed: 12/15/2022] Open
Abstract
Bleeding or inflammation in early pregnancy may result in pregnancy loss or defective implantation. Their effect on HOX gene expression in first trimester decidua is unknown. Bleeding results in thrombin generation, although infection or inflammation results in production of cytokines typified by Interleukin-1beta (IL-1beta). First trimester decidual cells were pretreated with 17beta estradiol (E(2)), medroxyprogesterone acetate (MPA) or both and subsequently treated with thrombin or IL-1beta. Affymetrix microarray analysis was used to assess the expression of all HOX genes and confirmed using real-time RT-PCR. E(2) or MPA treatment resulted in significant increases in HOXA10 and HOXA11. Subsequent treatment with thrombin resulted in diminished expression of HOXA10 and HOXA9. Treatment with IL-1beta resulted in decreased expression of HOXA1, 3, 9, 10 and 11. HOXA10 expression was reduced by 70% after thrombin treatment (P = 0.018) and by 90% after IL-1beta treatment (P = 0.004). HOXA11 mRNA expression was decreased by 88% after IL-1beta treatment (P < 0.001), but not by thrombin treatment. Decidua was collected at the time of elective termination of pregnancy (n = 10) or surgical treatment of spontaneous pregnancy loss (n = 10). Real-time PCR and western analysis demonstrated decreased HOXA10 and HOXA11 RNA and protein expression in the decidua of spontaneous pregnancy loss compared with that of viable pregnancies. In conclusion, multiple HOX genes are expressed in decidual cells and inhibited by thrombin and IL-1beta. Since HOXA10 and HOXA11 are known to be necessary for successful pregnancy, these findings suggest a molecular mechanism by which bleeding or inflammation may affect pregnancy outcome.
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Affiliation(s)
- Jennifer Sarno
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Frederick Schatz
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - S. Joseph Huang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Charles Lockwood
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
| | - Hugh S. Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT, USA
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Van Vaerenbergh I, Van Lommel L, Ghislain V, In't Veld P, Schuit F, Fatemi HM, Devroey P, Bourgain C. In GnRH antagonist/rec-FSH stimulated cycles, advanced endometrial maturation on the day of oocyte retrieval correlates with altered gene expression. Hum Reprod 2009; 24:1085-91. [DOI: 10.1093/humrep/den501] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
Inflammatory disorders account for a significant percentage of gynecologic disease, particularly in reproductive age women. Inflammation is a basic method by which we respond to infection, irritation, or injury. Inflammation is now recognized as a type of nonspecific immune response, either acute or chronic. In gynecology, inflammation leads to anatomic disorders primarily as a result of infectious disease; however inflammation can affect ovulation and hormone production as well as be associated with endometriosis. Similarly, immune cell trafficking is an important component of cyclic endometrial development in each menstrual cycle. These immune cells are required for endometrial function, producing a vast array of inflammatory cytokines. Inflammation alters endometrial receptivity, however it may also play a role in tissue repair and remodeling. Finally, inflammation affects the trophoblast and trophoblast-endometrial interaction. Some components of the immune response are required for optimal fertility and normal tissue remodeling. A better understanding of the necessary role of inflammation in reproduction will allow more rational and targeted treatment of inflammatory disorders in reproductive medicine.
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Affiliation(s)
- Gerson Weiss
- Department of Obstetric and Gynecology, New Jersey Medical School, Newark, New Jersey, USA
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Sultan C, Biason-Lauber A, Philibert P. Mayer-Rokitansky-Kuster-Hauser syndrome: recent clinical and genetic findings. Gynecol Endocrinol 2009; 25:8-11. [PMID: 19165657 DOI: 10.1080/09513590802288291] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is characterized by Mullerian duct aplasia in an XX individual with female phenotype presenting primary amenorrhea at adolescence. Multiple abnormalities may be associated with the MRKH syndrome. Genetic investigations focused on the genes of anti-Mullerian hormone and its receptor, as well as on Wt1, Pax2, Cftr and Hox genes, have been unproductive. Only the Wnt4 gene has been clearly implicated in MRKH syndrome and found to be associated with clinical and/or biological signs of hyperandrogenism in three different works. Beside the multiple malformations that may be associated with MRKH syndrome, such as renal, skeletal, cardiac and auditory defects, MRKH and hyperandrogenism represent a new clinical and genetic disorder.
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Affiliation(s)
- Charles Sultan
- Unite d'Endocrinologie-Gynecologie Pediatriques, Service de Pediatrie I, Hopital Arnaud de Villeneuve, CHU Montpellier, Montpellier, France.
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Ota T, Klausen C, Salamanca MC, Woo HL, Leung PCK, Auersperg N. Expression and function of HOXA genes in normal and neoplastic ovarian epithelial cells. Differentiation 2008; 77:162-71. [PMID: 19281776 DOI: 10.1016/j.diff.2008.09.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Revised: 06/11/2008] [Accepted: 06/12/2008] [Indexed: 12/01/2022]
Abstract
We studied the roles of three HOXA genes in cultured normal ovarian surface epithelial (OSE) cells and ovarian cancer cells. They included HOXA4 and HOXA7 because, by cDNA microarray analysis, these were more highly expressed in invasive ovarian carcinomas than in benign or borderline (noninvasive) ovarian tumors, and HOXA9 because it characterizes normal oviductal epithelium, which resembles ovarian serous adenocarcinomas. The three HOXA genes were more highly expressed when OSE cells were dividing and motile than when they were confluent and stationary, and also when they dispersed in response to EGF treatment or to reduced calcium concentrations in culture media. The expression of the HOXA genes varied among ovarian cancer cell lines, but was highest in lines with compact epithelial morphologies. We focused on HOXA4 as the most highly expressed in the ovarian carcinoma array. HOXA4 expression did not parallel proliferative activities of either OSE or ovarian cancer lines. Moreover, modifying HOXA4 expression in ovarian cancer cell lines did not alter either E-cadherin expression or CA125 secretion. However, HOXA4 downregulation enhanced EGFR phosphorylation and migration in serum-starved OSE and ovarian cancer cells in response to EGF, and enhanced migration of all ovarian cancer lines in 5% serum even without EGF treatment. Thus, HOXA4 expression does not correlate with proliferation or with epithelial differentiation, but it increases in response to OSE cell dispersion and negatively regulates EGFR activation and the motility of OSE and of ovarian cancer cells. HOXA4 expression was highest in cancer lines with compact epithelial growth patterns, suggesting, again, an anti-dispersion function. In summary, increased HOXA4 expression in ovarian cancer appears to constitute a tumor-suppressive, homeostatic response to aberrant cell behavior, and, in particular, to cell dispersion and migration.
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Affiliation(s)
- Takayo Ota
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of British Columbia, 2H30-4490 Oak St., B.C. Women's Hospital, Vancouver, BC, Canada V6H 3V5
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