1
|
Wu HM, Tsai TC, Liu SM, Pai AHY, Chen LH. The Current Understanding of Molecular Mechanisms in Adenomyosis-Associated Infertility and the Treatment Strategy for Assisted Reproductive Technology. Int J Mol Sci 2024; 25:8937. [PMID: 39201621 DOI: 10.3390/ijms25168937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/14/2024] [Accepted: 08/14/2024] [Indexed: 09/02/2024] Open
Abstract
Adenomyosis, endometriosis of the uterus, is associated with an increased likelihood of abnormal endometrial molecular expressions thought to impair implantation and early embryo development, resulting in disrupted fertility, including the local effects of sex steroid and pituitary hormones, immune responses, inflammatory factors, and neuroangiogenic mediators. In the recent literature, all of the proposed pathogenetic mechanisms of adenomyosis reduce endometrial receptivity and alter the adhesion molecule expression necessary for embryo implantation. The evidence so far has shown that adenomyosis causes lower pregnancy and live birth rates, higher miscarriage rates, as well as adverse obstetric and neonatal outcomes. Both pharmaceutical and surgical treatments for adenomyosis seem to have a positive impact on reproductive outcomes, leading to improved pregnancy and live birth rates. In addition, adenomyosis has negative impacts on reproductive outcomes in patients undergoing assisted reproductive technology. This association appears less significant after patients follow a long gonadotropin-releasing hormone agonist (GnRHa) protocol, which improves implantation rates. The pre-treatment of GnRHa can also be beneficial before engaging in natural conception attempts. This review aims to discover adenomyosis-associated infertility and to provide patient-specific treatment options.
Collapse
Affiliation(s)
- Hsien-Ming Wu
- Department of Obstetrics and Gynecology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Tian-Chi Tsai
- Department of Obstetrics and Gynecology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Shang-Min Liu
- Department of Obstetrics and Gynecology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Angel Hsin-Yu Pai
- Department of Obstetrics and Gynecology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Liang-Hsuan Chen
- Department of Obstetrics and Gynecology, Linkou Medical Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| |
Collapse
|
2
|
Pan Z, Dai J, Zhang P, Ren Q, Wang X, Yan S, Sun H, Jiao X, Yuan M, Wang G. Vaginal microbiome differences between patients with adenomyosis with different menstrual cycles and healthy controls. BMC Microbiol 2024; 24:281. [PMID: 39068412 PMCID: PMC11282752 DOI: 10.1186/s12866-024-03339-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 05/16/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND Adenomyosis is a commonly observed benign gynecological disease that affects the quality of life and social psychology of women of childbearing age. However, because of the unknown etiology and incidence of adenomyosis, its pathophysiological mechanism remains unclear; further, because no noninvasive, accurate, and individualized diagnostic methods are available, treatment and efficacy evaluations are limited. Notably, the interaction between the changes in the microecological environment of the female reproductive tract and human immunity, endocrine, and other links leads to the occurrence and development of diseases. In addition, the vaginal microbiome differs in different menstrual cycles; therefore, assessing the differences between the microbiomes of patients with adenomyosis and healthy individuals in different menstrual cycles will improve the understanding of the disease and provide references for the search for noninvasive diagnosis and individualized precision treatment of adenomyosis. This study aimed to explored the data of individuals in different menstrual cycles. RESULTS Differences in the vaginal microbiome between patients with adenomyosis and healthy individuals were observed. At phylum level, the relative abundance of Firmicutes in the adenomyosis group was higher than that in the control group, which contributed the most to the species difference between the two groups. At the genus level, Lactobacillus was the most dominant in both groups, Alpha-diversity analysis showed significant differences in the adenomyosis and control group during luteal phase (Shannon index, p = 0.0087; Simpson index, p = 0.0056). Beta-diversity index was significantly different between the two groups (p = 0.018). However, based on Weighted Unifrac analysis, significant differences were only observed throughout the luteal phase (p = 0.0146). Within the adenomyosis group, differences between women with different menstrual cycles were also observed. Finally, 50 possible biomarkers including were screened and predicted based on the random forest analyse. CONCLUSIONS The vaginal microbiome of patients with adenomyosis and healthy individuals differed during menstrual periods, especially during the luteal phase. These findings facilitate the search for specific biological markers within a limited range and provide a more accurate, objective, and individualized diagnostic and therapeutic evaluation method for patients with adenomyosis, compared to what is currently available.
Collapse
Affiliation(s)
- Zangyu Pan
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Jun Dai
- Qilu Hospital of Shandong University, Jinan, 250000, Shandong Province, China
| | - Ping Zhang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Qianhui Ren
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Xinyu Wang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Shumin Yan
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Hao Sun
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Xue Jiao
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China
| | - Ming Yuan
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China.
- Medical Integration and Practice Center, Cheeloo College of Medicine, Shandong University, Jinan, 250000, Shandong, China.
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China.
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China.
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China.
| | - Guoyun Wang
- Department of Obstetrics and Gynecology, Shandong Provincial Hospital, Jinan, 250000, Shandong, China.
- JiNan Key Laboratory of Diagnosis and Treatment of Major Gynaecological Disease, Jinan, 250000, Shandong Province, China.
- Gynecology Laboratory, Shandong Provincial Hospital, Jinan, 250000, Shandong Province, China.
- Gynecology Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, Shandong Province, China.
| |
Collapse
|
3
|
Wada Y, Takahashi H, Ogoyama M, Horie K, Suzuki H, Usui R, Jwa SC, Ohkuchi A, Fujiwara H. Association between adenomyosis and placenta accreta and mediation effect of assisted reproductive technology on the association: A nationwide observational study. Int J Gynaecol Obstet 2024. [PMID: 38676352 DOI: 10.1002/ijgo.15565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024]
Abstract
OBJECTIVES To investigate the association between adenomyosis and placenta accreta spectrum (PAS) and to evaluate the effect of assisted reproductive technology (ART) in mediating this association. METHODS We retrieved data for singleton women from the Japanese nationwide perinatal registry between 2013 and 2019, excluding women with a history of adenomyomectomy. To investigate the association between adenomyosis and PAS among women, we used a multivariable logistic regression model with multiple imputation for missing data. We evaluated mediation effect of ART including in vitro fertilization and intracytoplasmic sperm injection on the association between adenomyosis and PAS using causal mediation analysis based on the counterfactual approach. RESULTS Of 1 500 173 pregnant women, 1539 (0.10%) had adenomyosis. The number receiving ART was 489/1539 (31.8%) and 117 482/1 498 634 (7.8%) in women with and without adenomyosis, respectively. The proportion of women who developed PAS was 21/1539 (1.4%) in women with adenomyosis and 7530/1 498 634 (0.5%) in women without adenomyosis. Adenomyosis was significantly associated with PAS (odds ratio [OR] 1.95; 95% confidence interval [CI] 1.26-3.00; P = 0.002). Mediation analysis showed that OR of the total effect of adenomyosis on PAS was 1.98 (95% CI 1.13-3.04), OR of natural indirect effect (effect explained by ART) was 1.15 (95% CI 1.01-1.41), and OR of natural direct effect (effect unexplained by ART) was 1.72 (95% CI 0.86-2.82). The proportion mediated (natural indirect effect/total effect) was 26.5%. Adenomyosis was also significantly associated with PAS without previa (OR 1.96; 95% CI 1.23-3.13, P = 0.005). CONCLUSION Adenomyosis was significantly associated with PAS. ART mediated 26.5% of the association between adenomyosis and PAS.
Collapse
Affiliation(s)
- Yoshimitsu Wada
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hironori Takahashi
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Manabu Ogoyama
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Kenji Horie
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hirotada Suzuki
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Rie Usui
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Seung Chik Jwa
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Akihide Ohkuchi
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Hiroyuki Fujiwara
- Department of Obstetrics and Gynecology, Jichi Medical University, Shimotsuke, Tochigi, Japan
| |
Collapse
|
4
|
Zheng W, Fu Z, Tan X, Liang X, Cao L. Bioinformatic Analysis of m6A Regulator-Mediated RNA Methylation Modification Patterns and Immune Microenvironment Characterization in Endometriosis. Biochem Genet 2024:10.1007/s10528-024-10725-5. [PMID: 38451401 DOI: 10.1007/s10528-024-10725-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024]
Abstract
Epigenetic regulation plays an essential role in immunity and inflammation in endometriosis. In this study, we aimed to explore differences in m6A regulators between endometriosis patients and normal women and analyze the effect of m6A modification on immune and inflammatory microenvironment. The samples for analysis were downloaded from the Gene Expression Omnibus database, including ectopic endometrium (EC), eutopic endometrium (EU), and normal eutopic endometrium (NM) samples from non-endometriosis women. The validation process involved utilizing our previous RNA-sequencing data. Subsequently, a correlation analysis was performed to ascertain the relationship between m6A and the inflammatory microenvironment profile, encompassing infiltrating immunocytes, immune-inflammation reaction gene sets, and human leukocyte antigen genes. LASSO analyses were used to develop risk signature. The findings of this study indicate that the m6A regulators FTO were observed to be significantly up-regulated, while YTHDF2, CBLL1, and METTL3 were down-regulated in endometriosis tissues. The CIBERSORT analysis revealed that the local inflammatory microenvironment of ectopic lesions plays a crucial role in the development of endometriosis. Notably, M2 macrophages exhibited a significant difference between the EC and NM groups. Moreover, M2 macrophages demonstrated a positive correlation with FTO (0.39) and a negative correlation with CBLL1 (- 0.35). Furthermore, consistent clustering of EC and EU samples resulted in the identification of three distinct cell subtypes. Among different cell subtypes, significant differences were in immunoinfiltrating cells, plasma cells, naive CD4 T cells, memory activated CD4 T cells, gamma delta T cells, resting NK cells and activated NK cells but not in macrophages. Furthermore, the identification of various compounds capable of targeting these m6A genes was achieved. In conclusions, our integrated bioinformatics analysis results demonstrated that m6A-related genes METTL3, CBLL1 and YTHDF2 may be useful biomarkers for endometriosis in ectopic endometrium. The potential therapeutic approach of targeting m6A regulators holds promise for the treatment of endometriosis.
Collapse
Affiliation(s)
- Weilin Zheng
- Guangdong Second Provincial General Hospital, Guangzhou, 510000, Guangdong, China
| | - Zhiyi Fu
- The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, 510000, Guangdong, China
| | - Xi Tan
- Guangdong Second Provincial General Hospital, Guangzhou, 510000, Guangdong, China
| | - Xuefang Liang
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510000, Guangdong, China
| | - Lixing Cao
- The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510000, Guangdong, China.
| |
Collapse
|
5
|
Liu H, Liang J, Dai X, Peng Y, Xiong W, Zhang L, Li X, Li W, Liu K, Bi S, Wang X, Zhang W, Liu Y. Transcriptome-wide N6-methyladenosine (m6A) methylation profiling of long non-coding RNAs in ovarian endometriosis. Genomics 2024; 116:110803. [PMID: 38290592 DOI: 10.1016/j.ygeno.2024.110803] [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: 09/04/2023] [Revised: 01/13/2024] [Accepted: 01/26/2024] [Indexed: 02/01/2024]
Abstract
N6-methyladenosine (m6A) methylation is the most prevalent internal epigenetic posttranscriptional mechanism for regulating mammalian RNA. Despite recent advances in determining the biological functions of m6A methylation, its association with the pathology of ovarian endometriosis remains uncertain. Herein, we performed m6A transcriptome-wide profiling to identify key lncRNAs with m6A modification involved in ovarian endometriosis development by bioinformatics analysis. We found the total m6A level was lower in ovarian endometriosis than in normal endometrium samples, with 9663 m6A peaks associated with 8989 lncRNAs detected in ovarian endometriosis and 9902 m6A peaks associated with 9210 lncRNAs detected in normal endometrium samples. These m6A peaks were primarily enriched within AAACU motifs. Functional enrichment analysis indicated that pathways involving the regulation of adhesion and development were significantly enriched in these differentially methylated lncRNAs. The regulatory relationships among lncRNAs, microRNAs (miRNAs), and mRNAs were identified by competing endogenous RNA (ceRNA) analysis and determination of the network regulating lncRNA-mRNA expression. Several specific lncRNA, including LINC00665, LINC00937, FZD10-AS1, DIO3OS and GATA2-AS1 which were differently expressed and modified by m6A, were validated using qRT-PCR and its interaction with infiltrating immune cells was explored. Furthermore, we found LncRNA DIO3OS promotes the invasion and migration of Human endometrial stromal cells (THESCs) and ALKBH5 regulates the expression of the lncRNA DIO3OS through m6A modification in vitro. Our study firstly revealed the transcriptome-wide map of m6A modification in lncRNAs of ovarian endometriosis. These findings may enable the determination of the underlying mechanism governing the pathogenesis of ovarian endometriosis and provide theoretical basis for further deeper research on the role of m6A in the development of ovarian endometriosis.
Collapse
Affiliation(s)
- Hengwei Liu
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Jiaxin Liang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xin Dai
- Shandong Key Laboratory of Reproductive Medicine, Department of Obstetrics and Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yuan Peng
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenqian Xiong
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ling Zhang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoou Li
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Wenyuan Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 430060 Wuhan, China
| | - Keyi Liu
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Siyi Bi
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xiwen Wang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China.
| | - Yi Liu
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| |
Collapse
|
6
|
Zhao S, Dong Y, Li Y, Wang Z, Chen Y, Dong Y. Melatonin Alleviates Lipopolysaccharide-Induced Abnormal Pregnancy through MTNR1B Regulation of m6A. Int J Mol Sci 2024; 25:733. [PMID: 38255808 PMCID: PMC10815701 DOI: 10.3390/ijms25020733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/18/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
Pregnancy is a highly intricate and delicate process, where inflammation during early stages may lead to pregnancy loss or defective implantation. Melatonin, primarily produced by the pineal gland, exerts several pharmacological effects. N6-methyladenosine (m6A) is the most prevalent mRNA modification in eukaryotes. This study aimed to investigate the association between melatonin and m6A during pregnancy and elucidate the underlying protective mechanism of melatonin. Melatonin was found to alleviate lipopolysaccharide (LPS)-induced reductions in the number of implantation sites. Additionally, it mitigated the activation of inflammation, autophagy, and apoptosis pathways, thereby protecting the pregnancy process in mice. The study also revealed that melatonin regulates uterine m6A methylation levels and counteracts abnormal changes in m6A modification of various genes following LPS stimulation. Furthermore, melatonin was shown to regulate m6A methylation through melatonin receptor 1B (MTNR1B) and subsequently modulate inflammation, autophagy, and apoptosis through m6A. In conclusion, our study demonstrates that melatonin protects pregnancy by influencing inflammation, autophagy, and apoptosis pathways in an m6A-dependent manner via MTNR1B. These findings provide valuable insights into the mechanisms underlying melatonin's protective effects during pregnancy and may have implications for potential therapeutic strategies in managing pregnancy-related complications.
Collapse
Affiliation(s)
- Shisu Zhao
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.Z.); (Y.D.); (Y.L.); (Z.W.)
| | - Yanjun Dong
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.Z.); (Y.D.); (Y.L.); (Z.W.)
| | - Yuanyuan Li
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.Z.); (Y.D.); (Y.L.); (Z.W.)
| | - Zixu Wang
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.Z.); (Y.D.); (Y.L.); (Z.W.)
| | - Yaoxing Chen
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.Z.); (Y.D.); (Y.L.); (Z.W.)
| | - Yulan Dong
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China; (S.Z.); (Y.D.); (Y.L.); (Z.W.)
- Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, China Agricultural University, Beijing 100193, China
| |
Collapse
|
7
|
Wan Z, Ye L, Chen G, Xiong C, OuYang Z, Wu L, He J, Duan P, Jie Y, Zhang Q, Hua W. WTAP gene variants and susceptibility to ovarian endometriosis in a Chinese population. Front Genet 2023; 14:1276099. [PMID: 37900186 PMCID: PMC10603221 DOI: 10.3389/fgene.2023.1276099] [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: 08/11/2023] [Accepted: 10/02/2023] [Indexed: 10/31/2023] Open
Abstract
Background: Endometriosis is a common chronic gynecologic disorder with a significant negative impact on women's health. Wilms tumor 1-associated protein (WTAP) is a vital component of the RNA methyltransferase complex for N6-methyladenosine modification and plays a critical role in various human diseases. However, whether single nucleotide polymorphisms (SNPs) of the WTAP gene predispose to endometriosis risk remains to be investigated. Methods: We genotyped three WTAP polymorphisms in 473 ovarian endometriosis patients and 459 control participants using the Agena Bioscience MassArray iPLEX platform. The logistic regression models were utilized to assess the associations between WTAP SNPs and the risk of ovarian endometriosis. Results: In the single-locus analyses, we found that the rs1853259 G variant genotypes significantly increased, while the rs7766006 T variant genotypes significantly decreased the association with ovarian endometriosis risk. Combined analysis indicated that individuals with two unfavorable genotypes showed significantly higher ovarian endometriosis risk (adjusted OR = 1.71 [1.23-2.37], p = 0.001) than those with zero risk genotypes. In the stratified analysis, the risk effect of the rs1853259 AG/GG and rs7766006 GG genotypes was evident in subgroups of age ≤30, gravidity≤1, parity≤1, rASRM stage I, and the rs7766006 GG genotype was associated with worse risk (adjusted OR = 1.64 [1.08-2.48], p = 0.021) in the patients with rASRM stage II + III + IV. The haplotype analysis indicated that individuals with GGG haplotypes had a higher risk of ovarian endometriosis than wild-type AGG haplotype carriers. Moreover, false positive report probability and Bayesian false discovery probability analysis validated the reliability of the significant results. The quantitative expression trait loci analysis revealed that rs1853259 and rs7766006 were correlated with the expression levels of WTAP. Conclusion: Our findings demonstrated that WTAP polymorphisms were associated with susceptibility to ovarian endometriosis among Chinese women.
Collapse
Affiliation(s)
- Zixian Wan
- Research Institute for Maternal and Child Health, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Lu Ye
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Guange Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chaoyi Xiong
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Zhenbo OuYang
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Liangzhi Wu
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Ping Duan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Youkun Jie
- Department of Pathology, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, China
| | - Qiushi Zhang
- Research Institute for Maternal and Child Health, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| | - Wenfeng Hua
- Research Institute for Maternal and Child Health, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
- Department of Gynecology, Guangdong Second Provincial General Hospital, Guangzhou, Guangdong, China
| |
Collapse
|
8
|
Kobayashi R, Kawabata-Iwakawa R, Terakawa J, Sugiyama M, Morita S, Horii T, Hatada I. Aberrant activation of estrogen receptor-α signaling in Mettl14-deficient uteri impairs embryo implantation. FASEB J 2023; 37:e23093. [PMID: 37440278 DOI: 10.1096/fj.202300735r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/15/2023] [Accepted: 07/03/2023] [Indexed: 07/14/2023]
Abstract
The precise control of endometrial receptivity is crucial for successful embryo implantation, which is strictly regulated by the ovarian steroid hormones estrogen and progesterone. Despite our improved understanding of the genetic regulation of implantation downstream of the action of hormones, we do not know much about the epigenetic regulation that occurs during early pregnancy. To investigate the role of the N6-methyladenosine (m6A) RNA modification in embryo implantation, we generated mice with conditional deletion of Mettl14, a core component of the m6A writer complex, in the uterus. These mice were infertile due to implantation failure. We showed that Mettl14-deficient uteri had aberrant upregulation of estrogen receptor α (ERα) signaling and ERα phosphorylation, but progesterone receptor (PGR) signaling was largely unaffected. Additionally, Mettl14 deletion led to abnormal activation of the innate immune pathway in Mettl14-deficient uteri. This effect was accompanied by the infiltration of immune cells, such as macrophages and dendritic cells, into the basal region of the endometrial epithelium. Methylated RNA immunoprecipitation sequencing (MeRIP-seq) showed that genes involved in the innate immune response had decreased m6A peaks in Mettl14-deficient mice. These results suggest that Mettl14 plays a crucial role in successful implantation by precisely regulating both ERα signaling and innate immunity in the uterus.
Collapse
Affiliation(s)
- Ryosuke Kobayashi
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Reika Kawabata-Iwakawa
- Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Gunma University, Maebashi, Japan
| | - Jumpei Terakawa
- Graduate School of Veterinary Science, Azabu University, Sagamihara, Japan
| | - Makoto Sugiyama
- Faculty of Veterinary Medicine, Kitasato University School of Veterinary Medicine, Aomori, Japan
| | - Sumiyo Morita
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Takuro Horii
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
| | - Izuho Hatada
- Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Maebashi, Japan
- Viral Vector Core, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Japan
| |
Collapse
|
9
|
Wan S, Sun Y, Zong J, Meng W, Yan J, Chen K, Wang S, Guo D, Xiao Z, Zhou Q, Yin Z, Yang M. METTL3-dependent m 6A methylation facilitates uterine receptivity and female fertility via balancing estrogen and progesterone signaling. Cell Death Dis 2023; 14:349. [PMID: 37270544 DOI: 10.1038/s41419-023-05866-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 05/08/2023] [Accepted: 05/16/2023] [Indexed: 06/05/2023]
Abstract
Infertility is a worldwide reproductive health problem and there are still many unknown etiologies of infertility. In recent years, increasing evidence emerged and confirmed that epigenetic regulation played a leading role in reproduction. However, the function of m6A modification in infertility remains unknown. Here we report that METTL3-dependent m6A methylation plays an essential role in female fertility via balancing the estrogen and progesterone signaling. Analysis of GEO datasets reveal a significant downregulation of METTL3 expression in the uterus of infertile women with endometriosis or recurrent implantation failure. Conditional deletion of Mettl3 in female reproductive tract by using a Pgr-Cre driver results in infertility due to compromised uterine endometrium receptivity and decidualization. m6A-seq analysis of the uterus identifies the 3'UTR of several estrogen-responsive genes with METTL3-dependent m6A modification, like Elf3 and Celsr2, whose mRNAs become more stable upon Mettl3 depletion. However, the decreased expression levels of PR and its target genes, including Myc, in the endometrium of Mettl3 cKO mice indicate a deficiency in progesterone responsiveness. In vitro, Myc overexpression could partially compensate for uterine decidualization failure caused by Mettl3 deficiency. Collectively, this study reveals the role of METTL3-dependent m6A modification in female fertility and provides insight into the pathology of infertility and pregnancy management.
Collapse
Affiliation(s)
- Shuo Wan
- The First Affiliated Hospital, Jinan University, Guangzhou, 510632, China
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China
- Key Laboratory of Regenerative Medicine of the Ministry of Education, International Joint Laboratory for Embryonic Development and Prenatal Medicine, Department of Histology and Embryology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Yadong Sun
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Jinbao Zong
- Clinical Laboratory and Central Laboratory, the Affiliated Qingdao Hiser Hospital of Qingdao University, Qingdao, 266033, China
| | - Wanqing Meng
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Jiacong Yan
- Reproductive Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650021, China
| | - Kexin Chen
- Reproductive Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650021, China
| | - Sanfeng Wang
- Guangdong Women and Children Hospital, Guangzhou, 510010, China
| | - Daji Guo
- Department of Neurology, Sun Yat-sen Memorial Hospital, 510123, Guangzhou, China
| | - Zhiqiang Xiao
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Qinghua Zhou
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, China
| | - Zhinan Yin
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China.
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, China.
| | - Meixiang Yang
- The First Affiliated Hospital, Jinan University, Guangzhou, 510632, China.
- The Biomedical Translational Research Institute, Guangzhou Key Laboratory for Germ-free animals and Microbiota Application, Key Laboratory of Ministry of Education for Viral Pathogenesis & Infection Prevention and Control, School of Medicine, Jinan University, Guangzhou, 510632, China.
- Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, 519000, China.
| |
Collapse
|
10
|
Wang D, Guan H, Xia Y. YTHDC1 maintains trophoblasts function by promoting degradation of m6A-modified circMPP1. Biochem Pharmacol 2023; 210:115456. [PMID: 36780989 DOI: 10.1016/j.bcp.2023.115456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/13/2023]
Abstract
N6-methyladenosine (m6A) is the most abundant mRNA internal modification in eukaryotic mRNAs. This study focuses on the effect of circMPP1 on placental villi function and the molecular mechanism. First, differentially expressed circular RNAs (circRNAs) in placenta tissues of large-for-gestational-age(LGA) neonates were screened by m6A-circRNA Epitranscriptomic Microarray and bioinformatics analyses. The abnormal expression of circMPP1 in placental tissues and cell lines was validated by RT-qPCR. In-vitro and in-vivo functional experiments were performed to evaluate the role of circMPP1 in placental impairment and fetal dysplasia. The interacting proteins of circMPP1 were identified and validated using RNA pull-down, RNA immunoprecipitation, fluorescence in situ hybridization, and immunofluorescence experiments. Protein interactions and expression levels were detected by Co-immunoprecipitation and western blot analysis. The m6A modification in circMPP1 was verified by methylated RNA immunoprecipitation assay. Bioinformatics analyses showed that circMPP1 was highly expressed in tissues with disordered placental function. In-vitro and in-vivo functional experiments showed that circMPP1 inhibited the function of placental villi. Further mechanism analyses showed that circMPP1 activated the NF-kappa B and MAPK3 signaling pathways. In addition, the m6A "reader" protein YTHDC1 was found to reduce circMPP1 expression via m6A modification. In conclusion, this study demonstrates that YTHDC1 maintains trophoblasts function by promoting degradation of m6A-mediated circMPP1.
Collapse
Affiliation(s)
- Dan Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Hongbo Guan
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110001, Liaoning Province, China.
| | - Yajun Xia
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| |
Collapse
|
11
|
Huang E, Chen L. RNA N 6-methyladenosine modification in female reproductive biology and pathophysiology. Cell Commun Signal 2023; 21:53. [PMID: 36894952 PMCID: PMC9996912 DOI: 10.1186/s12964-023-01078-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 02/12/2023] [Indexed: 03/11/2023] Open
Abstract
Gene expression and posttranscriptional regulation can be strongly influenced by epigenetic modifications. N6-methyladenosine, the most extensive RNA modification, has been revealed to participate in many human diseases. Recently, the role of RNA epigenetic modifications in the pathophysiological mechanism of female reproductive diseases has been intensively studied. RNA m6A modification is involved in oogenesis, embryonic growth, and foetal development, as well as preeclampsia, miscarriage, endometriosis and adenomyosis, polycystic ovary syndrome, premature ovarian failure, and common gynaecological tumours such as cervical cancer, endometrial cancer, and ovarian cancer. In this review, we provide a summary of the research results of m6A on the female reproductive biology and pathophysiology in recent years and aim to discuss future research directions and clinical applications of m6A-related targets. Hopefully, this review will add to our understanding of the cellular mechanisms, diagnostic biomarkers, and underlying therapeutic strategies of female reproductive system diseases. Video Abstract.
Collapse
Affiliation(s)
- Erqing Huang
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Lijuan Chen
- Department of Obstetrics and Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| |
Collapse
|
12
|
Mao C, Liu X, Guo SW. Decreased Glycolysis at Menstruation is Associated with Increased Menstrual Blood Loss. Reprod Sci 2023; 30:928-951. [PMID: 36042151 DOI: 10.1007/s43032-022-01066-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/11/2022] [Indexed: 12/01/2022]
Abstract
Heavy menstrual bleeding (HMB) is common and severely affects the quality of life of the afflicted women. While HMB is known to be caused by impaired endometrial repair after menstruation, its more proximate cause remains unknown. To investigate whether glycolysis plays any role in endometrial repair and thus HMB, we conducted two mouse experiments using a mouse model of simulated menstruation. We performed immunohistochemistry analyses of proteins involved in glycolysis as well as pro- and anti-inflammatory cytokines in endometrium from decidualized and non-decidualized uterine horns. We also assessed the extent of endometrial repair by staging endometrial morphology from decidualization to full repair using histological scoring of uterine sections and quantitated the amount of menstrual blood loss (MBL). In addition, we employed the scratch assay and the CCK-8 assay to evaluate the effect of glycolysis suppression on cellular migration and proliferation, respectively. Finally, we performed an immunohistochemistry analysis of HK2 in endometrium from women with adenomyosis who experienced either moderate/heavy or excessive MBL. We found that endometrial repair coincided with increased glycolysis in endometrium and glycolysis suppression delayed endometrial repair, resulting in increased MBL. Additionally, glycolysis suppression significantly inhibited the proliferative and migratory capability of endometrial cells, and disrupted normal endometrial repair even when hypoxia was maintained. Women with adenomyosis who experienced excessive MBL had significantly lower HK2 staining than those who experienced moderate/heavy MBL. Thus, our study highlights the importance of glycolysis as well as inflammation in optimal endometrial repair, and provides clues for the cause of HMB in women with adenomyosis.
Collapse
Affiliation(s)
- Chenyu Mao
- Department of Gynecology, Shanghai OB/GYN Hospital, Fudan University, Shanghai, 200011, China
| | - Xishi Liu
- Department of Gynecology, Shanghai OB/GYN Hospital, Fudan University, Shanghai, 200011, China.,Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China
| | - Sun-Wei Guo
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China. .,Research Institute, Shanghai OB/GYN Hospital, Fudan University, Shanghai, 200011, China.
| |
Collapse
|
13
|
METTL3 is essential for normal progesterone signaling during embryo implantation via m 6A-mediated translation control of progesterone receptor. Proc Natl Acad Sci U S A 2023; 120:e2214684120. [PMID: 36693099 PMCID: PMC9945998 DOI: 10.1073/pnas.2214684120] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Embryo implantation, a crucial step in human reproduction, is tightly controlled by estrogen and progesterone (P4) via estrogen receptor alpha and progesterone receptor (PGR), respectively. Here, we report that N6-methyladenosine (m6A), the most abundant mRNA modification in eukaryotes, plays an essential role in embryo implantation through the maintenance of P4 signaling. Conditional deletion of methyltransferase-like 3 (Mettl3), encoding the m6A writer METTL3, in the female reproductive tract using a Cre mouse line with Pgr promoter (Pgr-Cre) resulted in complete implantation failure due to pre-implantation embryo loss and defective uterine receptivity. Moreover, the uterus of Mettl3 null mice failed to respond to artificial decidualization. We further found that Mettl3 deletion was accompanied by a marked decrease in PGR protein expression. Mechanistically, we found that Pgr mRNA is a direct target for METTL3-mediated m6A modification. A luciferase assay revealed that the m6A modification in the 5' untranslated region (5'-UTR) of Pgr mRNA enhances PGR protein translation efficiency in a YTHDF1-dependent manner. Finally, we demonstrated that METTL3 is required for human endometrial stromal cell decidualization in vitro and that the METTL3-PGR axis is conserved between mice and humans. In summary, this study provides evidence that METTL3 is essential for normal P4 signaling during embryo implantation via m6A-mediated translation control of Pgr mRNA.
Collapse
|
14
|
Liu H, Zheng J, Liao A. The regulation and potential roles of m6A modifications in early embryonic development and immune tolerance at the maternal-fetal interface. Front Immunol 2022; 13:988130. [PMID: 36225914 PMCID: PMC9549360 DOI: 10.3389/fimmu.2022.988130] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/09/2022] [Indexed: 12/16/2022] Open
Abstract
The immune microenvironment at the maternal-fetal interface was determined by the crosstalk between the trophoblast and maternal-derived cells, which dynamically changed during the whole gestation. Trophoblasts act as innate immune cells and dialogue with maternal-derived cells to ensure early embryonic development, depending on the local immune microenvironment. Therefore, dysfunctions in trophoblasts and maternal decidual cells contribute to pregnancy complications, especially recurrent pregnancy loss in early pregnancy. Since many unknown regulatory factors still affect the complex immune status, exploring new potential aspects that could influence early pregnancy is essential. RNA methylation plays an important role in contributing to the transcriptional regulation of various cells. Sufficient studies have shown the crucial roles of N6-methyladenosine (m6A)- and m6A-associated- regulators in embryogenesis during implantation. They are also essential in regulating innate and adaptive immune cells and the immune response and shaping the local and systemic immune microenvironment. However, the function of m6A modifications at the maternal-fetal interface still lacks wide research. This review highlights the critical functions of m6A in early embryonic development, summarizes the reported research on m6A in regulating immune cells and tumor immune microenvironment, and identifies the potential value of m6A modifications in shaping trophoblasts, decidual immune cells, and the microenvironment at the maternal-fetal interface. The m6A modifications are more likely to contribute to embryogenesis, placentation and shape the immune microenvironment at the maternal-fetal interface. Uncovering these crucial regulatory mechanisms could provide novel therapeutic targets for RNA methylation in early pregnancy.
Collapse
Affiliation(s)
- Hong Liu
- Department of Reproduction, Maternal and Child Health Hospital of Hubei Province, Affiliated in Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Zheng
- Department of Reproduction, Maternal and Child Health Hospital of Hubei Province, Affiliated in Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Jie Zheng, ; Aihua Liao,
| | - Aihua Liao
- Institute of Reproductive Health, Center for Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Jie Zheng, ; Aihua Liao,
| |
Collapse
|
15
|
Gan L, Li Y, Chen Y, Huang M, Cao J, Cao M, Wang Z, Wan G, Gui T. Transcriptome analysis of eutopic endometrial stromal cells in women with adenomyosis by RNA-sequencing. Bioengineered 2022; 13:12637-12649. [PMID: 35603555 PMCID: PMC9275863 DOI: 10.1080/21655979.2022.2077614] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Affiliation(s)
- Lin Gan
- Department of Obstetrics and Gynecology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yongrong Li
- Department of Obstetrics and Gynecology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yan Chen
- Department of Obstetrics and Gynecology, Suzhou Xiangcheng People’s Hospital, Suzhou, Jiangsu, China
| | - Meihua Huang
- Department of Obstetrics and Gynecology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Laboratory of Obstetrics and Gynecology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Jian Cao
- Department of Gynecology, Women’s Hospital of Nanjing Medical University (Nanjing Maternity and Child Health Care Hospital), Nanjing, Jiangsu, China
| | - Meiling Cao
- Department of Obstetrics and Gynecology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Zhihui Wang
- Department of Obstetrics and Gynecology, Suzhou Xiangcheng People’s Hospital, Suzhou, Jiangsu, China
| | - Guiping Wan
- Department of Obstetrics and Gynecology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Laboratory of Obstetrics and Gynecology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - Tao Gui
- Department of Obstetrics and Gynecology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Laboratory of Obstetrics and Gynecology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| |
Collapse
|
16
|
Kunaseth J, Waiyaput W, Chanchaem P, Sawaswong V, Permpech R, Payungporn S, Sophonsritsuk A. Vaginal microbiome of women with adenomyosis: A case-control study. PLoS One 2022; 17:e0263283. [PMID: 35171931 PMCID: PMC8849446 DOI: 10.1371/journal.pone.0263283] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 01/16/2022] [Indexed: 01/02/2023] Open
Abstract
Immune dysregulation can involve invasion and survival of endometrial glands inside the myometrium of the adenomyosis. There is limited available data concerning alterations of the bacterial microbiome in the reproductive tract of adenomyosis women. The present cross-sectional age-matched study aims to compare vaginal microbiota between women with and without adenomyosis. We recruited women with adenomyosis (N = 40) and age-matched women without adenomyosis (N = 40) from the Departments of Obstetrics and Gynaecology, Ramathibodi Hospital Mahidol University, from August 2020 to January 2021. Vaginal swab samples were collected from the participants. DNA isolation and bacterial 16s rDNA gene sequencing and data analyses were then performed. Comparison of the diversity of vaginal microbiota, microbiota composition, and the operational taxonomic unit (OTU) between adenomyosis and non-adenomyosis (control) groups were undertaken. Data from 40 and 38 women with and without adenomyosis, respectively, were analyzed. Alpha-diversity analysis (Chao1 index) at the species level showed higher vaginal microbial richness in the adenomyosis group when compared with the control group (p = 0.006). The linear discriminant analysis effect size technique (LeFSe) indicated an elevated abundance of several vaginal microbial taxa in the adenomyosis group, including Alloscardovia, Oscillospirales, Ruminoccoccaceae, UCG_002, Oscillospiraceae, Enhydrobacter, Megamonas, Moraxellaceae, Subdoligranulum, Selenomonadaceae, and Faecalibacterium. On the other hand, an increase in the abundance of Megaspehera, Fastidiosipila, Hungateiclostridiaceae, and Clostridia was identified in the control group. Vaginal community state type (CST)-III and -IV were dominated in adenomyosis, while only CST-IV was dominated in the non-adenomyosis group. Lactobacillus was the most abundant vaginal microbial in both groups. In this study, the differences in vaginal microbiome profile were noted between adenomyosis and non-adenomyosis group. The increasing of microbial richness was associated with adenomyosis. Nevertheless, further investigations were required to elucidate the mechanisms and apply them for clinical implications.
Collapse
Affiliation(s)
- Jitsupa Kunaseth
- Reproductive Endocrinology and Infertility Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Wanwisa Waiyaput
- Office of Research Academic and Innovation, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Prangwalai Chanchaem
- Research Unit of Systems Microbiology, Chulalongkorn University, Bangkok, Thailand
| | - Vorthon Sawaswong
- Research Unit of Systems Microbiology, Chulalongkorn University, Bangkok, Thailand
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Rattana Permpech
- Perioperative Nursing Division, Department of Ramathibodi Nursing Service, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Sunchai Payungporn
- Research Unit of Systems Microbiology, Chulalongkorn University, Bangkok, Thailand
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- * E-mail: (AS); (SP)
| | - Areepan Sophonsritsuk
- Reproductive Endocrinology and Infertility Unit, Department of Obstetrics and Gynaecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- * E-mail: (AS); (SP)
| |
Collapse
|
17
|
Mu H, Li H, Liu Y, Wang X, Mei Q, Xiang W. N6-Methyladenosine Modifications in the Female Reproductive System: Roles in Gonad Development and Diseases. Int J Biol Sci 2022; 18:771-782. [PMID: 35002524 PMCID: PMC8741838 DOI: 10.7150/ijbs.66218] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/15/2021] [Indexed: 12/18/2022] Open
Abstract
N6-methyladenosine (m6A) is the most prevalent chemical modification in eukaryotic messenger RNAs. By participating in various RNA-related bioprocesses including RNA decay, splicing, transport and translation, m6A serves as a pivotal regulator of RNA fate and plays an irreplaceable role in cellular activities. The m6A modifications of transcripts are coordinately regulated by methyltransferase “writers” and demethylase “erasers”, and produce variable effects via different m6A reading protein “readers”. There is emerging evidence that m6A modifications play a critical role in a variety of physiological and pathological processes in the female reproductive system, subsequently affecting female fertility. Here, we introduce recent advances in research on m6A regulators and their functions, then highlight the role of m6A in gonad development and female reproductive diseases, as well as the underlying mechanisms driving these processes.
Collapse
Affiliation(s)
- Hongbei Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huiying Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Liu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaofei Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiaojuan Mei
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
18
|
Xue P, Zhou W, Fan W, Jiang J, Kong C, Zhou W, Zhou J, Huang X, Yang H, Han Q, Zhang B, Xu L, Yu B, Chen L. Increased METTL3-mediated m 6A methylation inhibits embryo implantation by repressing HOXA10 expression in recurrent implantation failure. Reprod Biol Endocrinol 2021; 19:187. [PMID: 34906165 PMCID: PMC8670269 DOI: 10.1186/s12958-021-00872-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 12/02/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Recurrent implantation failure (RIF) is a major limitation of assisted reproductive technology, which is associated with impaired endometrial receptivity. Although N6-methyladenosine (m6A) has been demonstrated to be involved in various biological processes, its potential role in the endometrium of women with RIF has been poorly studied. METHODS Global m6A levels and major m6A methyltransferases/demethylases mRNA levels in mid-secretory endometrium from normal and RIF women were examined by colorimetric m6A quantification strategy and quantitative real-time PCR, respectively. The effects of METTL3-mediated m6A modification on embryo attachment were evaluated by an vitro model of a confluent monolayer of Ishikawa cells co-cultured with BeWo spheroids, and the expression levels of homeo box A10 (HOXA10, a well-characterized marker of endometrial receptivity) and its downstream targets were evaluated by quantitative real-time PCR and Western blotting in METTL3-overexpressing Ishikawa cells. The molecular mechanism for METTL3 regulating HOXA10 expression was determined by methylated RNA immunoprecipitation assay and transcription inhibition assay. RESULTS Global m6A methylation and METTL3 expression were significantly increased in the endometrial tissues from women with RIF compared with the controls. Overexpression of METTL3 in Ishikawa cells significantly decreased the ration of BeWo spheroid attachment, and inhibited HOXA10 expression with downstream decreased β3-integrin and increased empty spiracles homeobox 2 expression. METTL3 catalyzed the m6A methylation of HOXA10 mRNA and contributed to its decay with shortened half-life. Enforced expression of HOXA10 in Ishikawa cells effectively rescued the impairment of METTL3 on the embryo attachment in vitro. CONCLUSION Increased METTL3-mediated m6A modification represents an adverse impact on embryo implantation by inhibiting HOXA10 expression, contributing to the pathogenesis of RIF.
Collapse
Affiliation(s)
- Pingping Xue
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Wenbo Zhou
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Wenqiang Fan
- Department of Mammary Surgery, Changzhou No.2 People's Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Jianya Jiang
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Chengcai Kong
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Wei Zhou
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Jianmei Zhou
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Xiaoyang Huang
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Haiyan Yang
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Qian Han
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Bin Zhang
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China
| | - Lingyun Xu
- Department of Mammary Surgery, Changzhou No.2 People's Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China.
| | - Bin Yu
- Department of Medical Genetics, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China.
| | - Li Chen
- Department of Reproductive Medicine Center, Changzhou Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Changzhou, 213000, China.
| |
Collapse
|
19
|
Zhang Y, Chen L, Wu X, Sun Z, Wang F, Wang B, Dong P. The RNA N6-Methyladenosine Demethylase FTO Promotes Head and Neck Squamous Cell Carcinoma Proliferation and Migration by Increasing CTNNB1. Int J Gen Med 2021; 14:8785-8795. [PMID: 34853532 PMCID: PMC8627861 DOI: 10.2147/ijgm.s339095] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/15/2021] [Indexed: 12/24/2022] Open
Abstract
Objective In this study, we aimed to investigate the role of RNA N6-methyladenosine demethylase fat mass and obesity-associated protein (FTO) in head and neck squamous cell carcinoma (HNSCC). Methods Clinical data downloaded from The Cancer Genome Atlas (TCGA) database were used to analyze the relationship between mRNA levels of FTO, METTL3, METTL14, and ALKBH5, and the overall survival in cancer and para-cancer datasets. FTO expression in tumor and normal tissues was compared using immunohistochemistry, and its relationship with overall survival was analyzed based on the Kaplan–Meier method. The FaDu cell line with high FTO levels was chosen from five HNSCC cell lines for further experiments. FTO was verified as an oncogene in HNSCC by in vitro loss-of-function and overexpression studies, cell proliferation assay, wound healing assay, and identification of expression changes of epithelial–mesenchymal transition (EMT)-related markers. Catenin beta 1 (CTNNB1) was confirmed as a downstream target gene of FTO with additional methods like the GEPIA online tool, qRT-PCR, Western blotting, and dot blot assay. Results We found that FTO expression was significantly upregulated in HNSCC datasets and tissues. Increased FTO expression indicated a trend towards poor prognosis and was found to promote disease proliferation and migration. Mechanistically, cell proliferation assay, wound healing assay, and identification of expression changes of EMT-related markers demonstrated that FTO could act as an oncogene in HNSCC. FTO expression was significantly correlated with CTNNB1 expression. Moreover, it exerted a tumorigenic effect by increasing CTNNB1 expression in an m6A-dependent manner. Conclusion FTO promotes head and neck squamous cell carcinoma proliferation and migration by increasing CTNNB1 in an m6A-dependent manner.
Collapse
Affiliation(s)
- Yu Zhang
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Lixiao Chen
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Xiaoliang Wu
- Tailai Bioscience, Shenzhen, People's Republic of China
| | - Zhenfeng Sun
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Fei Wang
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Baoxin Wang
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Pin Dong
- Department of Otolaryngology, Head and Neck Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| |
Collapse
|
20
|
Mao M, Cheng Y, Yang J, Chen Y, Xu L, Zhang X, Li Z, Chen C, Ju S, Zhou J, Wang L. Multifaced roles of PLAC8 in cancer. Biomark Res 2021; 9:73. [PMID: 34627411 PMCID: PMC8501656 DOI: 10.1186/s40364-021-00329-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/20/2021] [Indexed: 12/21/2022] Open
Abstract
The role of PLAC8 in tumorigenesis has been gradually elucidated with the development of research. Although there are common molecular mechanisms that enforce cell growth, the impact of PLAC8 is varied and can, in some instances, have opposite effects on tumorigenesis. To systematically understand the role of PLAC8 in tumors, the molecular functions of PLAC8 in cancer will be discussed by focusing on how PLAC8 impacts tumorigenesis when it arises within tumor cells and how these roles can change in different stages of cancer progression with the ultimate goal of suppressing PLAC8-relevant cancer behavior and related pathologies. In addition, we highlight the diversity of PLAC8 in different tumors and its functional output beyond cancer cell growth. The comprehension of PLAC8's molecular function might provide new target and lead to the development of novel anticancer therapies.
Collapse
Affiliation(s)
- Misha Mao
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Yifan Cheng
- Department of Gastrointestinal Surgery, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou, Zhejiang, 318000, People's Republic of China
| | - Jingjing Yang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Yongxia Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Ling Xu
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Xun Zhang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Zhaoqing Li
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Cong Chen
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Siwei Ju
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China. .,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China.
| | - Linbo Wang
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Zhejiang, 310000, Hangzhou, China. .,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Zhejiang, 310000, Hangzhou, China.
| |
Collapse
|
21
|
Aly J, Plowden TC, Christy AY. Factors contributing to persistent disparate outcomes of in vitro fertilization treatment. Curr Opin Obstet Gynecol 2021; 33:335-342. [PMID: 34101661 DOI: 10.1097/gco.0000000000000726] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE OF REVIEW Disparate healthcare outcomes are ubiquitous and occur across all fields of medicine, specifically for racial and ethnic minorities. Within reproductive health, minority women face disparate access to care, particularly infertility services, poor outcomes of fertility treatment, alarmingly higher rates of maternal morbidity and mortality as well as higher rates of preterm birth, lower live birth rates when they conceive spontaneously or when they conceive with assisted reproductive technology. The objective of this review is to highlight factors contributing to the persistent racial/ethnic disparities in in vitro fertilization (IVF) outcomes. RECENT FINDINGS Recent studies document poorer outcomes after IVF treatment. Black women have been shown to have lower live birth rates following IVF treatment for more than 15 years. SUMMARY In an effort to better understand these negative outcomes, scientists and clinicians have investigated possible biological contributing factors including the vaginal microbiome, differences in oocyte quality, embryo viability, endometrial factors, and hormonal differences. Multiple social/cultural factors also play a role including access to care, particularly for people with low income, patient (mis)education, and medical racism/bias.
Collapse
Affiliation(s)
- Jasmine Aly
- Program in Reproductive Endocrinology and Infertility, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, Maryland
| | - Torie C Plowden
- Department of Gynecologic Surgery and Obstetrics, Womack Army Medical Center, Fort Bragg, North Carolina
| | | |
Collapse
|
22
|
Zhao S, Lu J, Chen Y, Wang Z, Cao J, Dong Y. Exploration of the potential roles of m6A regulators in the uterus in pregnancy and infertility. J Reprod Immunol 2021; 146:103341. [PMID: 34116483 DOI: 10.1016/j.jri.2021.103341] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/07/2021] [Accepted: 05/31/2021] [Indexed: 11/29/2022]
Abstract
Infertility is a prevalent female reproductive disease worldwide. Currently, there are many unknown etiologies of infertility. N6-methyladenosine (m6A) is the most prevalent modification of eukaryotic mRNA. This study intended to investigate the implications of m6A regulators in the uterus for pregnancy and infertility. Pregnant ICR mice on days (D) 0, 4, 6, 10, and 15 were used to monitor m6A methylation in the uterus by liquid chromatography-tandem mass spectrometry (LC-MS/MS), and then m6A methylation regulators were detected by real-time quantitative PCR (qPCR), western blot and immunohistochemistry (IHC). We found that m6A levels increased and that m6A regulators were expressed differently in the uterus during pregnancy. Then, we acquired expression data from endometrial tissue from women with infertility and recurrent pregnancy loss from the Gene Expression Omnibus (GEO) database. The expression of m6A regulators in infertility was significantly dysregulated according to the data mining technique. Specifically, the mRNA levels of METTL16 (p = 0.0147) and WTAP (p = 0.028) were lower and those of ALKBH5 (p = 0.0432) and IGF2BP2 (p = 0.0016) were higher in the endometrium of infertile patients. Meanwhile, many immunity-related pathways are abnormal in infertility, such as cytokine-cytokine receptor interactions, natural killer cell-mediated cytotoxicity and leukocyte transendothelial migration. In conclusion, we found that the m6A levels in the uterus increased as pregnancy progressed, and these regulators were dysregulated in the endometrium of infertility patients. These results suggest that m6A methylation may be very important in the establishment of implantation and maintenance of pregnancy and may become a new direction for research on infertility.
Collapse
Affiliation(s)
- Shisu Zhao
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China.
| | - Jiayin Lu
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China.
| | - Yaoxing Chen
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China.
| | - Zixu Wang
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China.
| | - Jing Cao
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China.
| | - Yulan Dong
- Laboratory of Neurobiology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China; Key Laboratory of Precision Nutrition and Food Quality, Ministry of Education, China Agricultural University, Beijing, Haidian, 100193, People's Republic of China.
| |
Collapse
|
23
|
Yu K, Cui S, Xue T. LncRNA MIR22HG is downregulated in adenomyosis and upregulates miR-2861 through demethylation to inhibit endometrial cell proliferation. J Obstet Gynaecol Res 2021; 47:1837-1845. [PMID: 33624428 DOI: 10.1111/jog.14665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/05/2020] [Accepted: 12/31/2020] [Indexed: 01/21/2023]
Abstract
AIM Endometrial cell proliferation plays a critical role in adenomyosis. It has been reported that MIR22HG and miR-2861 play similar roles in regulating endometrial cell proliferation, indicating their involvement in adenomyosis. This study aimed to investigate the potential involvement of MIR22HG and miR-2861 in adenomyosis. METHODS Endometrial biopsy was collected from both adenomyosis (n = 45) and the healthy controls (n = 45). The expression of MIR22HG and miR-2861 in biopsies were determined by quantitative reverse transcription polymerase chain reaction (RT-qPCR). The relationship between MIR22HG and miR-2861 in endometrial cells was analyzed by RT-qPCR. Methylation-specific PCR (MSP) was performed to analyze the effects of overexpression of MIR22HG on the expression of miR-2861. Western-blot assays were performed to illustrate the effect of MIR22HG, miR-2861, STAT3, and MMP2 on adenomyosis. Luciferase report assay was performed to analyze the interactions among miR-2861, STAT3, and MMP2. The role of MIR22HG and miR-2861 in regulating the proliferation of endometrial cells was analyzed by cell proliferation assay. RESULTS The expression of MIR22HG and miR-2861 in adenomyosis did not change with menstrual cycle. MIR22HG and miR-2861 were significantly downregulated in adenomyosis and they were significantly and positively correlated with each other. In endometrial cells, overexpression of MIR22HG upregulated the expression of miR-2861 and decreased methylation of miR-2861 gene. MIR22HG and miR-2861 downregulated STAT3 and MMP2 to inhibit the proliferation of endometrial cells. In addition, overexpression of both MIR22HG and miR-2861 showed stronger effects. CONCLUSION MIR22HG is downregulated in adenomyosis and upregulates miR-2861 through demethylation to inhibit endometrial cell proliferation.
Collapse
Affiliation(s)
- Ke Yu
- Department of Gynecology and Obstetrics, Affiliated Hospital of Yangzhou University, Yangzhou City, PR China
| | - Shuna Cui
- Medical College of Yangzhou University, Yangzhou City, PR China
| | - Tongmin Xue
- Nanjing Medical University, Nanjing City, PR China
| |
Collapse
|
24
|
Jiang L, Zhang M, Wu J, Wang S, Yang X, Yi M, Zhang X, Fang X. Exploring diagnostic m6A regulators in endometriosis. Aging (Albany NY) 2020; 12:25916-25938. [PMID: 33232273 PMCID: PMC7803542 DOI: 10.18632/aging.202163] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/09/2020] [Indexed: 12/18/2022]
Abstract
Endometriosis is an estrogen-dependent inflammatory disorder, usually causing infertility, pelvic pain, and ovarian masses. This study intended to investigate the implication of N6-methyladenosine (m6A) regulators in endometriosis. We acquired 34 normal, 127 eutopic, and 46 ectopic, samples of endometrium from the Gene Expression Omnibus (GSE7305, GSE7307, GSE51981) database and the Array-express (E-MTAB-694) database. These samples were then used to profile the expression of 20 m6A regulators in endometriosis. The results indicated that most dysregulated (19/20) m6A regulators were significantly downregulated in eutopic vs. normal endometrium and also significantly downregulated in ectopic vs. eutopic endometrium. Several dysregulated m6A regulators were common to both contrast matrices: METTL3, YTHDF2, YTHDF3, HNRNPA2B1, HNRNPC, and FTO. Both HNRNPA2B1 and HNRNPC were associated with the severity of endometriosis in eutopic samples, and also exhibited diagnostic potential for endometriosis. HNRNPA2B1 and HNRNPC may influence immune pathways and the infiltration of immune cells in endometriosis. Abnormalities in the gene transcription factors network associated with endometriosis might affect the expression of HNRNPA2B1 and HNRNPC. In conclusion, we observed significant dysregulation of m6A regulators in endometriosis, and found that HNRNPA2B1 and HNRNPC might correlate with the immune response and serve as useful diagnostic biomarkers for endometriosis.
Collapse
Affiliation(s)
- Li Jiang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mengmeng Zhang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jingni Wu
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Sixue Wang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Yang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mingyu Yi
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xinyue Zhang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoling Fang
- Department of Obstetrics and Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
25
|
Abstract
Adenomyosis is a common disorder of the uterus, and is associated with an enlarged uterus, heavy menstrual bleeding (HMB), pelvic pain, and infertility. It is characterized by endometrial epithelial cells and stromal fibroblasts abnormally found in the myometrium where they elicit hyperplasia and hypertrophy of surrounding smooth muscle cells. While both the mechanistic processes and the pathogenesis of adenomyosis are uncertain, several theories have been put forward addressing how this disease develops. These include intrinsic or induced (1) microtrauma of the endometrial-myometrial interface; (2) enhanced invasion of endometrium into myometrium; (3) metaplasia of stem cells in myometrium; (4) infiltration of endometrial cells in retrograde menstrual effluent into the uterine wall from the serosal side; (5) induction of adenomyotic lesions by aberrant local steroid and pituitary hormones; and (6) abnormal uterine development in response to genetic and epigenetic modifications. Dysmenorrhea, HMB, and infertility are likely results of inflammation, neurogenesis, angiogenesis, and contractile abnormalities in the endometrial and myometrial components. Elucidating mechanisms underlying the pathogenesis of adenomyosis raise possibilities to develop targeted therapies to ameliorate symptoms beyond the current agents that are largely ineffective. Herein, we address these possible etiologies and data that support underlying mechanisms.
Collapse
Affiliation(s)
- Junyu Zhai
- Department of Obstetrics, Gynecology and Reproductive Sciences, Center for Reproductive Sciences, University of California, San Francisco, San Francisco, California
- Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Shanghai, People’s Republic of China
| | - Silvia Vannuccini
- Division of Obstetrics and Gynecology, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi University Hospital, Florence, Italy
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Felice Petraglia
- Division of Obstetrics and Gynecology, Department of Experimental and Clinical Biomedical Sciences, University of Florence, Careggi University Hospital, Florence, Italy
| | - Linda C. Giudice
- Department of Obstetrics, Gynecology and Reproductive Sciences, Center for Reproductive Sciences, University of California, San Francisco, San Francisco, California
| |
Collapse
|