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Tummers FHMP, Bazelmans MK, Jansen FW, Blikkendaal MD, Vahrmeijer AL, Kuppen PJK. Biomarker identification for endometriosis as a target for real-time intraoperative fluorescent imaging: A new approach using transcriptomic analysis to broaden the search for potential biomarkers. Eur J Obstet Gynecol Reprod Biol 2023; 288:114-123. [PMID: 37506597 DOI: 10.1016/j.ejogrb.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
Intra-operative fluorescent imaging of endometriosis could help to optimize surgical treatment. Potential biomarkers to use as target for endometriosis-binding fluorescent probes were identified using a new five-phase transcriptomics-based approach to broaden the search for biomarkers. Using publicly available datasets, a differentially expressed gene (DEG) analysis was performed for endometriosis versus surgically relevant surrounding tissue (peritoneum, bladder, sigmoid, rectum, transverse colon, small intestine, vagina, and fallopian tubes) for which data was available. The remaining relevant surrounding tissues were analyzed for low expression levels. DEGs with a predicted membranous or extracellular location and with low expression levels in surrounding tissue were identified as candidate targets. Modified Target Selection Criteria were used to rank candidate targets based on the highest potential for use in fluorescent imaging. 29 potential biomarkers were ranked, resulting in Folate receptor 1 as the most potential biomarker. This is a first step towards finding a fluorescent tracer for intra-operative visualization of endometriosis. Additionally, this approach, using transcriptomics analysis to identifying candidate targets for a specific type of tissue for use in fluorescence-guided surgery could be translated to other surgical fields. TWEETABLE ABSTRACT: A new approach using transcriptomics analysis is shown to identify candidate targets for intra-operative fluorescent imaging for endometriosis, resulting in 29 potential candidates.
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Affiliation(s)
- Fokkedien H M P Tummers
- Department of Gynecology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands.
| | - Maria K Bazelmans
- Department of Gynecology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Frank Willem Jansen
- Department of Gynecology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; Department of Biomechanical Engineering, Delft University of Technology, 2628 CD Delft, The Netherlands
| | - Mathijs D Blikkendaal
- Nederlandse Endometriose Kliniek, Reinier de Graaf Hospital, 2625 AD Delft, The Netherlands
| | - Alexander L Vahrmeijer
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Peter J K Kuppen
- Department of Surgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
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2
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Dutta S, Banu SK, Arosh JA. Endocrine disruptors and endometriosis. Reprod Toxicol 2023; 115:56-73. [PMID: 36436816 DOI: 10.1016/j.reprotox.2022.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
Endometriosis is a hormone-dependent inflammatory gynecological disease of reproductive-age women. It is clinically and pathologically characterized by the presence of functional endometrium as heterogeneous lesions outside the uterine cavity. The two major symptoms are chronic pelvic pain and infertility, which profoundly affect women's reproductive health and quality of life. This significant individual and public health concerns underscore the importance of understanding the pathogenesis of endometriosis. The environmental endocrine-disrupting chemicals (EDCs) are exogenous agents that interfere with the synthesis, secretion, transport, signaling, or metabolism of hormones responsible for homeostasis, reproduction, and developmental processes. Endometriosis has been potentially linked to exposure to EDCs. In this review, based on the robust literature search, we have selected four endocrine disruptors (i) polychlorinated biphenyls (PCB)s (ii) dioxins (TCDD) (iii) bisphenol A (BPA) and its analogs and (iv) phthalates to elucidate their critical role in the etiopathogenesis of endometriosis. The epidemiological and experimental data discussed in this review indicate that these four EDCs activate multiple intracellular signaling pathways associated with proinflammation, estrogen, progesterone, prostaglandins, cell survival, apoptosis, migration, invasion, and growth of endometriosis. The available information strongly indicates that environmental exposure to EDCs such as PCBs, dioxins, BPA, and phthalates individually or collectively contribute to the pathophysiology of endometriosis. Further understanding of the molecular mechanisms of how these EDCs establish endometriosis and therapeutic strategies to mitigate the effects of these EDCs in the pathogenesis of endometriosis are timely needed. Moreover, understanding the interactive roles of these EDCs in the pathogenesis of endometriosis will help regulate the exposure to these EDCs in reproductive age women.
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Affiliation(s)
- Sudipta Dutta
- Reproductive Endocrinology and Cell Signaling Laboratory, Department of Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 77843 College Station, TX, USA
| | - Sakhila K Banu
- Reproductive Endocrinology and Cell Signaling Laboratory, Department of Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 77843 College Station, TX, USA.
| | - Joe A Arosh
- Reproductive Endocrinology and Cell Signaling Laboratory, Department of Integrative Biosciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, 77843 College Station, TX, USA.
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3
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Souza CLSE, Barbosa CD, Coelho HILN, Santos Júnior MN, Barbosa EN, Queiroz ÉC, Teles MF, Dos Santos DC, Bittencourt RS, Soares TDJ, Oliveira MV, Timenetsky J, Campos GB, Marques LM. Effects of 17β-Estradiol on Monocyte/Macrophage Response to Staphylococcus aureus: An In Vitro Study. Front Cell Infect Microbiol 2021; 11:701391. [PMID: 34336722 PMCID: PMC8317603 DOI: 10.3389/fcimb.2021.701391] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/29/2021] [Indexed: 01/23/2023] Open
Abstract
To describe how 17β-estradiol (E2) influence in the monocyte/macrophage response induced by S. aureus in in vitro models of murine peritoneal macrophages (MPMs) and human peripheral blood monocytes (HPBM). MPMs (2 x 105/ml) were isolated from sham (n=3) and ovariectomized (OVX) females (n = 3) and males (n = 3) after induction by thioglycolate. The MPMs obtained from OVX females and males were treated for 24 hours with 17β-estradiol (E2) (10-7 M), and after that, inoculation with S. aureus was carried out for 6 hours. The macrophages were collected and destined to evaluate the relative gene expression of TNF-α, IL-1β, IL-6, IL-8 and TLR2. For the in vitro model of HPBMs, six men and six women of childbearing age were selected and HPBMs were isolated from samples of the volunteers’ peripheral blood. In women, blood was collected both during menstruation and in the periovulatory period. HPBMs were inoculated with S. aureus for 6 hours and the supernatant was collected for analysis of cytokines by Luminex and the HPBMs were removed for analysis of 84 genes involved in the host’s response to bacterial infections by RT-PCR array. Previous treatment with E2 decreased the gene expression and production of proinflammatory cytokines, such as TNF-α, IL-1β and IL-6 and decreased the expression of TLR2 tanto em MPMs quanto em HPBMs. The analysis of gene expression shows that E2 inhibited the NFκB pathway. It is suggested that 17β-estradiol acts as an immunoprotective in the monocyte/macrophage response induced by S. aureus.
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Affiliation(s)
- Clarissa Leal Silva E Souza
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil.,Santo Agostinho School of Health (FASA), Santo Agostinho Colleges, Afya Educational, Vitória da Conquista, Brazil
| | - Camila Dutra Barbosa
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Hanna I L N Coelho
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Manoel N Santos Júnior
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil.,University of Santa Cruz (UESC), Ilhéus, Brazil
| | - Elaine Novaes Barbosa
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Éllunny Chaves Queiroz
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Mauro Fernandes Teles
- Santo Agostinho School of Health (FASA), Santo Agostinho Colleges, Afya Educational, Vitória da Conquista, Brazil
| | - Déborah Cruz Dos Santos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Rafaela Souza Bittencourt
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Telma de Jesus Soares
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | | | - Jorge Timenetsky
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Guilherme Barreto Campos
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil
| | - Lucas Miranda Marques
- Multidisciplinary Institute of Health, Federal University of Bahia (UFBA), Vitória da Conquista, Brazil.,University of Santa Cruz (UESC), Ilhéus, Brazil.,Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
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4
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Hung SW, Zhang R, Tan Z, Chung JPW, Zhang T, Wang CC. Pharmaceuticals targeting signaling pathways of endometriosis as potential new medical treatment: A review. Med Res Rev 2021; 41:2489-2564. [PMID: 33948974 PMCID: PMC8252000 DOI: 10.1002/med.21802] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 12/23/2020] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
Abstract
Endometriosis (EM) is defined as endometrial tissues found outside the uterus. Growth and development of endometriotic cells in ectopic sites can be promoted via multiple pathways, including MAPK/MEK/ERK, PI3K/Akt/mTOR, NF-κB, Rho/ROCK, reactive oxidative stress, tumor necrosis factor, transforming growth factor-β, Wnt/β-catenin, vascular endothelial growth factor, estrogen, and cytokines. The underlying pathophysiological mechanisms include proliferation, apoptosis, autophagy, migration, invasion, fibrosis, angiogenesis, oxidative stress, inflammation, and immune escape. Current medical treatments for EM are mainly hormonal and symptomatic, and thus the development of new, effective, and safe pharmaceuticals targeting specific molecular and signaling pathways is needed. Here, we systematically reviewed the literature focused on pharmaceuticals that specifically target the molecular and signaling pathways involved in the pathophysiology of EM. Potential drug targets, their upstream and downstream molecules with key aberrant signaling, and the regulatory mechanisms promoting the growth and development of endometriotic cells and tissues were discussed. Hormonal pharmaceuticals, including melatonin, exerts proapoptotic via regulating matrix metallopeptidase activity while nonhormonal pharmaceutical sorafenib exerts antiproliferative effect via MAPK/ERK pathway and antiangiogenesis activity via VEGF/VEGFR pathway. N-acetyl cysteine, curcumin, and ginsenoside exert antioxidant and anti-inflammatory effects via radical scavenging activity. Natural products have high efficacy with minimal side effects; for example, resveratrol and epigallocatechin gallate have multiple targets and provide synergistic efficacy to resolve the complexity of the pathophysiology of EM, showing promising efficacy in treating EM. Although new medical treatments are currently being developed, more detailed pharmacological studies and large sample size clinical trials are needed to confirm the efficacy and safety of these treatments in the near future.
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Affiliation(s)
- Sze Wan Hung
- Department of Obstetrics and GynaecologyThe Chinese University of Hong KongHong Kong
| | - Ruizhe Zhang
- Department of Obstetrics and GynaecologyThe Chinese University of Hong KongHong Kong
- Center for Reproductive Medicine, Henan Key Laboratory of Reproduction and GeneticsThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou
| | - Zhouyurong Tan
- Department of Obstetrics and GynaecologyThe Chinese University of Hong KongHong Kong
| | | | - Tao Zhang
- Department of Obstetrics and GynaecologyThe Chinese University of Hong KongHong Kong
| | - Chi Chiu Wang
- Department of Obstetrics and GynaecologyThe Chinese University of Hong KongHong Kong
- Reproduction and Development, Li Ka Shing Institute of Health SciencesThe Chinese University of Hong KongHong Kong
- School of Biomedical SciencesThe Chinese University of Hong KongHong Kong
- Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive MedicineThe Chinese University of Hong KongHong Kong
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5
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Matta K, Koual M, Ploteau S, Coumoul X, Audouze K, Le Bizec B, Antignac JP, Cano-Sancho G. Associations between Exposure to Organochlorine Chemicals and Endometriosis: A Systematic Review of Experimental Studies and Integration of Epidemiological Evidence. ENVIRONMENTAL HEALTH PERSPECTIVES 2021; 129:76003. [PMID: 34310196 PMCID: PMC8312885 DOI: 10.1289/ehp8421] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 05/04/2021] [Accepted: 06/21/2021] [Indexed: 05/19/2023]
Abstract
BACKGROUND Growing epidemiological evidence suggests that organochlorine chemicals (OCCs), including 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), may play a role in the pathogenesis of endometriosis. OBJECTIVES We aimed to systematically review the experimental evidence (in vivo and in vitro) on the associations between exposure to OCCs and endometriosis-related end points. METHODS A systematic review protocol was developed following the National Toxicology Program /Office of Health Assessment and Translation (NTP/OHAT) framework and managed within a web-based interface. In vivo studies designed to evaluate the impact of OCCs on the onset or progression of endometriosis and proliferation of induced endometriotic lesions were eligible. Eligible in vitro studies included single-cell and co-culture models to evaluate the proliferation, migration, and/or invasion of endometrial cells. We applied the search strings to PubMed, Web of Science, and Scopus®. A final search was performed on 24 June 2020. Assessment of risk of bias and the level of evidence and integration of preevaluated epidemiological evidence was conducted using NTP/OHAT framework Results: Out of 812 total studies, 39 met the predetermined eligibility criteria (15 in vivo, 23 in vitro, and 1 both). Most studies (n=27) tested TCDD and other dioxin-like chemicals. In vivo evidence supported TCDD's promotion of endometriosis onset and lesion growth. In vitro evidence supported TCDD's promotion of cell migration and invasion, but there was insufficient evidence for cell proliferation. In vitro evidence further supported the roles of the aryl hydrocarbon receptor and matrix metalloproteinases in mediating steroidogenic disruption and inflammatory responses. Estrogen interactions were found across studies and end points. CONCLUSION Based on the integration of a high level of animal evidence with a moderate level of epidemiological evidence, we concluded that TCDD was a known hazard for endometriosis in humans and the conclusion is supported by mechanistic in vitro evidence. Nonetheless, there is need for further research to fill in our gaps in understanding of the relationship between OCCs and their mixtures and endometriosis, beyond the prototypical TCDD. https://doi.org/10.1289/EHP8421.
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Affiliation(s)
- Komodo Matta
- Oniris, INRAE, UMR 1329 Laboratoire d’Étude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - Meriem Koual
- Université de Paris, T3S, Institut national de la santé et de la recherche médicale (Inserm) UMR S-1124, Paris, France
- Service de Chirurgie Cancérologique Gynécologique et du Sein, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges-Pompidou, Paris, France
| | - Stéphane Ploteau
- Service de gynécologie-obstétrique, Centre d’investigation clinique–Femme Enfant Adolescent, Hôpital Mère Enfant, Centre Hospitalier Universitaire Hôtel Dieu, Nantes, France
| | - Xavier Coumoul
- Université de Paris, T3S, Institut national de la santé et de la recherche médicale (Inserm) UMR S-1124, Paris, France
| | - Karine Audouze
- Université de Paris, T3S, Institut national de la santé et de la recherche médicale (Inserm) UMR S-1124, Paris, France
| | - Bruno Le Bizec
- Oniris, INRAE, UMR 1329 Laboratoire d’Étude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - Jean-Philippe Antignac
- Oniris, INRAE, UMR 1329 Laboratoire d’Étude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
| | - German Cano-Sancho
- Oniris, INRAE, UMR 1329 Laboratoire d’Étude des Résidus et Contaminants dans les Aliments (LABERCA), Nantes, France
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6
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Song G, Yu M, Mi DQ, Jiang Y, Tian G, Geng CP, Yuan JC, Miao SB, Wu XH. Lower growth arrest-specific 5 level in endometrium is related to endometriosis via promoting cell proliferation and angiogenesis. Kaohsiung J Med Sci 2021; 37:776-783. [PMID: 34137167 DOI: 10.1002/kjm2.12408] [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: 10/04/2020] [Revised: 04/28/2021] [Accepted: 05/11/2021] [Indexed: 01/22/2023] Open
Abstract
Long noncoding RNAs are a group of more than 200 nt, nonprotein coding RNAs, some of which are dysregulated in many pathophysiological processes including endometriosis. This study aims to clarify the roles of dysregulated growth arrest-specific 5 (GAS5) in patients with endometriosis, and unveil the underlying mechanisms. We obtained endometrium samples from 37 patients with endometriosis and 23 controls without endometriosis. Primary endometrial stromal cells (ESCs) and endothelial cells were separated from the endometrium. Levels of GAS5 were quantified using quantitative real-time polymerase chain reaction, and levels of p27, cleaved caspase-3, cleaved poly (ADP-Ribose) polymerase 1, vascular endothelial growth factor A, tissue inhibitor of metalloproteinases 3 (TIMP3), and trypsin-modified soy protein 10 were assessed by immunoblotting. Cell viability was examined using MTT assays, and the cell cycle and apoptosis were analyzed by flow cytometry. Endothelial cell tube formation capacity was assayed in vitro. GAS5 and p27 levels were found lower in the endometrium samples from patients with endometriosis. Primary ESCs from patients with endometriosis had increased viability, reduced apoptosis, and a relatively uncontrolled cell cycle. Gain- and loss-of-function studies confirmed that GAS5 regulated p27 expression in ESCs. Furthermore, GAS5 level was relatively low in primary endothelial cells from patients with endometriosis and GAS5 acted as an angiogenesis inhibitor by regulating the miR-181c-TIMP3 axis. Thus, lower GAS5 level in endometrium might be related to endometriosis by regulating cell proliferation, apoptosis, cell cycle, and angiogenesis.
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Affiliation(s)
- Ge Song
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Mei Yu
- Prenatal Diagnosis Center, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Dong-Qing Mi
- Prenatal Diagnosis Center, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Yan Jiang
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Geng Tian
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Cai-Ping Geng
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Jing-Chuan Yuan
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Sui-Bing Miao
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
| | - Xiao-Hua Wu
- Center for Reproductive Medicine, The Fourth Hospital of Shijiazhuang, Gynecology and Obstetrics Hospital Affiliated to Hebei Medical University, Shijiazhuang, Heibei, China
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Yang H, Hu T, Hu P, Qi C, Qian L. miR‑143‑3p inhibits endometriotic stromal cell proliferation and invasion by inactivating autophagy in endometriosis. Mol Med Rep 2021; 23:356. [PMID: 33760149 PMCID: PMC7974257 DOI: 10.3892/mmr.2021.11995] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/13/2020] [Indexed: 12/12/2022] Open
Abstract
Endometriosis (EM) is a multifactorial and debilitating chronic benign gynecological disease, but the pathogenesis of the disease is not completely understood. Dysregulated expression of microRNAs (miRNA/miR) is associated with the etiology of EM due to their role in regulating endometrial stromal cell proliferation and invasion. The present study aimed to identify the functions and mechanisms underlying miR-143-3p in EM. To explore the role of miR-143-3p in EM, functional miRNAs were analyzed via bioinformatics analysis. miR-143-3p expression levels in endometriotic stromal cells (ESCs) and normal endometrial stromal cells (NESCs) were measured via reverse transcription-quantitative PCR. The role of miR-143-3p in regulating ESC proliferation and invasion was assessed by performing Cell Counting Kit-8 and Transwell assays, respectively. miR-143-3p expression was significantly upregulated in ESCs compared with NESCs. Functionally, miR-143-3p overexpression inhibited ESC proliferation and invasion, whereas miR-143-3p knockdown promoted ESC proliferation and invasion. Moreover, miR-143-3p inhibited autophagy activation in ESCs, as indicated by decreased green puncta, which represented autophagic vacuoles, decreased microtubule associated protein 1 light chain 3α expression and increased p62 expression in the miR-143-4p mimic group compared with the control group. Moreover, compared with the control group, miR-143-3p overexpression significantly decreased the expression levels of autophagy-related 2B (ATG2B), a newly identified target gene of miR-143-3p, in ESCs. ATG2B overexpression reversed miR-143-3p overexpression-mediated inhibition of ESC proliferation and invasion. Collectively, the results of the present study suggested that miR-143-3p inhibited EM progression, thus providing a novel target for the development of therapeutic agents against EM.
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Affiliation(s)
- Hong Yang
- Department of Gynaecology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Tianqi Hu
- Department of Gynaecology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Panwei Hu
- Department of Gynaecology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Cong Qi
- Department of Gynaecology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Lin Qian
- Department of Gynaecology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
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8
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Nirgianakis K, McKinnon B, Ma L, Imboden S, Bersinger N, Mueller MD. Peritoneal fluid biomarkers in patients with endometriosis: a cross-sectional study. Horm Mol Biol Clin Investig 2020; 42:113-122. [PMID: 32926606 DOI: 10.1515/hmbci-2019-0064] [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: 11/02/2019] [Accepted: 03/31/2020] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Elevated concentrations of numerous molecules have been reported in the peritoneal cavity of women with endometriosis. Until now, no factor proved sufficiently specific to endometriosis. We aimed to investigate several biomarkers in endometriosis and report their association with the menstrual cycle in a large sample size study. METHODS Patients of reproductive age undergoing laparoscopic procedures for benign pathology in the Department of Obstetrics and Gynaecology, University of Bern between 2007 and 2018 were included. Exclusion criteria were the use of hormonal treatment in the three months prior to surgery, patients suffering from other inflammatory diseases, pregnancy, malignancy and surgery performed in an emergency. The concentrations of 13 different biomarkers in the peritoneal fluid (PF) were compared between patients with and without endometriosis both in the proliferative and the secretory cycle phase. RESULTS Out of 1,256 patients in the database, 521 met the inclusion and exclusion criteria. Glycodelin (PP14) and Midkine concentrations were significantly higher in patients with endometriosis compared to controls irrespective of the cycle phase in which the PF was collected. Interleukin-8 (IL-8), regulated on activation normal T cell expressed and secreted (RANTES) and osteoprotegerin (OPG) concentrations were higher in patients with endometriosis only in the proliferative cycle phase. Monocyte chemoattractant protein 1, CCL2 (MCP-1) and Defensin concentrations were higher in patients with endometriosis only in the secretory cycle phase. CONCLUSIONS Certain pathophysiological processes may take place only in the one cycle phase leading to a temporary increase of specific PF biomarkers. Correlation with clinical outcomes is mandatory to establish their potential as prognostic or therapeutic tools in endometriosis.
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Affiliation(s)
- Konstantinos Nirgianakis
- Department of Obstetrics and Gynaecology, University Hospital of Bern, Inselspital, Friedbühlstrasse 19, 3010, Bern, Switzerland
| | - Brett McKinnon
- Department of BioMedical Research, University of Bern, Bern, Switzerland.,Department of Obstetrics and Gynaecology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lijuan Ma
- Department of BioMedical Research, University of Bern, Bern, Switzerland.,Department of Obstetrics and Gynaecology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Sara Imboden
- Department of BioMedical Research, University of Bern, Bern, Switzerland.,Department of Obstetrics and Gynaecology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nick Bersinger
- Department of BioMedical Research, University of Bern, Bern, Switzerland.,Department of Obstetrics and Gynaecology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael D Mueller
- Department of BioMedical Research, University of Bern, Bern, Switzerland.,Department of Obstetrics and Gynaecology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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9
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Knific T, Fishman D, Vogler A, Gstöttner M, Wenzl R, Peterson H, Rižner TL. Multiplex analysis of 40 cytokines do not allow separation between endometriosis patients and controls. Sci Rep 2019; 9:16738. [PMID: 31723213 PMCID: PMC6853932 DOI: 10.1038/s41598-019-52899-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/24/2019] [Indexed: 12/15/2022] Open
Abstract
Endometriosis is a common gynaecological condition characterized by severe pelvic pain and/or infertility. The combination of nonspecific symptoms and invasive laparoscopic diagnostics have prompted researchers to evaluate potential biomarkers that would enable a non-invasive diagnosis of endometriosis. Endometriosis is an inflammatory disease thus different cytokines represent potential diagnostic biomarkers. As panels of biomarkers are expected to enable better separation between patients and controls we evaluated 40 different cytokines in plasma samples of 210 patients (116 patients with endometriosis; 94 controls) from two medical centres (Slovenian, Austrian). Results of the univariate statistical analysis showed no differences in concentrations of the measured cytokines between patients and controls, confirmed by principal component analysis showing no clear separation amongst these two groups. In order to validate the hypothesis of a more profound (non-linear) differentiating dependency between features, machine learning methods were used. We trained four common machine learning algorithms (decision tree, linear model, k-nearest neighbour, random forest) on data from plasma levels of proteins and patients’ clinical data. The constructed models, however, did not separate patients with endometriosis from the controls with sufficient sensitivity and specificity. This study thus indicates that plasma levels of the selected cytokines have limited potential for diagnosis of endometriosis.
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Affiliation(s)
- Tamara Knific
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000, Ljubljana, Slovenia
| | - Dmytro Fishman
- Institute of Computer Science, University of Tartu, Liivi 2, 50409, Tartu, Estonia.,Quretec Ltd., Ülikooli 6A, Tartu, 51003, Estonia
| | - Andrej Vogler
- Department of Obstetrics and Gynaecology, University Medical Centre Ljubljana, 1000, Ljubljana, Slovenia
| | - Manuela Gstöttner
- Department of Obstetrics and Gynecology, Medical University Vienna, 1090, Vienna, Austria
| | - René Wenzl
- Department of Obstetrics and Gynecology, Medical University Vienna, 1090, Vienna, Austria
| | - Hedi Peterson
- Institute of Computer Science, University of Tartu, Liivi 2, 50409, Tartu, Estonia.,Quretec Ltd., Ülikooli 6A, Tartu, 51003, Estonia
| | - Tea Lanišnik Rižner
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000, Ljubljana, Slovenia.
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10
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Liu Y, Chen J, Zhu X, Tang L, Luo X, Shi Y. Role of miR‑449b‑3p in endometriosis via effects on endometrial stromal cell proliferation and angiogenesis. Mol Med Rep 2018; 18:3359-3365. [PMID: 30066926 PMCID: PMC6102748 DOI: 10.3892/mmr.2018.9341] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 06/26/2018] [Indexed: 12/13/2022] Open
Abstract
Endometriosis is a common gynecological disease and the pathogenesis is not clearly understood. Previous studies have demonstrated via microarray techniques that microRNA (miR)-449b was significantly downregulated both in ectopic and eutopic endometrium in patients with endometriosis. In the present study, the aberrant expression of miR-449b was further confirmed by reverse transcription-quantitative polymerase chain reaction. It was demonstrated that miR-449b-3p was downregulated in ectopic and eutopic tissues from women with endometriosis, and the same expression pattern was observed in endometrial stromal cells (ESCs) of eutopic endometrium from women with endometriosis and normal endometrium from women without endometriosis. Functional analysis, including an MTT assay, apoptosis conducted by flow cytometry, capillary-like tube formation assay and invasion assay, indicated that the upregulated expression of miR-449b-3p inhibited the proliferation of ESCs and that the supernatants of miR-449b-overexpressing ESCs inhibited the formation of tubular structures in human umbilical vein endothelial cells, whereas it has no effect on ESC apoptosis and invasiveness. These results suggest that the aberrant expression of miR-449b-3p was involved in the development and progression of endometriosis.
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Affiliation(s)
- Yukai Liu
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai 200011, P.R. China
| | - Jie Chen
- Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Xiaoyong Zhu
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai 200011, P.R. China
| | - Lingli Tang
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai 200011, P.R. China
| | - Xuezhen Luo
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai 200011, P.R. China
| | - Yingli Shi
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai 200011, P.R. China
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11
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Mei J, Chang KK, Sun HX. Immunosuppressive macrophages induced by IDO1 promote the growth of endometrial stromal cells in endometriosis. Mol Med Rep 2017; 15:2255-2260. [PMID: 28260094 DOI: 10.3892/mmr.2017.6242] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Accepted: 12/22/2016] [Indexed: 11/06/2022] Open
Abstract
It was previously demonstrated that anomalous expression of indoleamine 2,3-dioxygenase-1 (IDO1) in endometrial stromal cells (ESCs) stimulated an inflammatory response that subsequently initiated the activation of immunosuppressive macrophages in endometriosis. The aim of the present study was to clarify the effect of IDO1‑induced macrophages on the growth of ESCs in endometriosis. Normal ESCs, ectopic ESCs and normal ESCs treated with plasmid pEGFP‑N1‑IDO1 or SD11‑IDO1 short hairpin RNA were co‑cultured with peripheral blood‑derived monocyte (PBMC)‑driven macrophages directly for 48 h. Compared with normal ESCs, the PBMC‑driven macrophages that were co‑cultured with ectopic ESCs displayed a lower phagocytic ability. pEGFP‑N1‑IDO1 transfection of normal ESCs also decreased the phagocytic ability of co‑cultured macrophages. Additionally, pEGFP‑N1‑IDO1‑transfected ESC‑induced macrophages significantly increased the viability and proliferation of ESCs, while ESC apoptosis was decreased, compared with control ESCs. In conclusion, IDO1 educated-macrophages may facilitate the survival of retrograde endometrial tissues, and be involved in the pathogenesis of endometriosis.
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Affiliation(s)
- Jie Mei
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
| | - Kai-Kai Chang
- Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, Shanghai 200011, P.R. China
| | - Hai-Xiang Sun
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. China
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12
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Sikora J, Smycz-Kubańska M, Mielczarek-Palacz A, Kondera-Anasz Z. Abnormal peritoneal regulation of chemokine activation-The role of IL-8 in pathogenesis of endometriosis. Am J Reprod Immunol 2017; 77. [DOI: 10.1111/aji.12622] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 11/21/2016] [Indexed: 02/03/2023] Open
Affiliation(s)
- Justyna Sikora
- Department of Immunology and Serology; Sosnowiec School of Pharmacy with the Division of Medical Analytics in Sosnowiec; Medical University of Silesia in Katowice; Sosnowiec Poland
| | - Marta Smycz-Kubańska
- Department of Immunology and Serology; Sosnowiec School of Pharmacy with the Division of Medical Analytics in Sosnowiec; Medical University of Silesia in Katowice; Sosnowiec Poland
| | - Aleksandra Mielczarek-Palacz
- Department of Immunology and Serology; Sosnowiec School of Pharmacy with the Division of Medical Analytics in Sosnowiec; Medical University of Silesia in Katowice; Sosnowiec Poland
| | - Zdzisława Kondera-Anasz
- Department of Immunology and Serology; Sosnowiec School of Pharmacy with the Division of Medical Analytics in Sosnowiec; Medical University of Silesia in Katowice; Sosnowiec Poland
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13
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Luo XZ, Zhou WJ, Tao Y, Wang XQ, Li DJ. TLR4 Activation Promotes the Secretion of IL-8 Which Enhances the Invasion and Proliferation of Endometrial Stromal Cells in an Autocrine Manner via the FAK Signal Pathway. Am J Reprod Immunol 2015; 74:467-79. [PMID: 26362992 DOI: 10.1111/aji.12425] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 08/11/2015] [Indexed: 01/02/2023] Open
Abstract
PROBLEM Chronic inflammation is important for the occurrence of endometriosis, but the molecular mechanisms are still poorly understood. TLR4 is not only expressed on immune cells but is also present in the human endometrium, and its regulation might be crucial for the pathogenesis of endometriosis. METHOD OF STUDY In this study, the expression of TLR4 in normal, eutopic endometrium, and ectopic tissues was analyzed by immunohistochemistry. The expression of the key molecules in endometrial stromal cells (ESCs) was assessed by in-cell Western assays. The invasion of eutopic ESCs from patients with endometriosis was evaluated by Matrigel invasion assay. The effects of CXCL8 on the proliferation of ESCs in vitro were assessed using BrdU assays. RESULTS We found that the expression of TLR4 is higher in the eutopic endometrium than the normal endometrium and that ectopic tissue had the highest level of expression. TLR4 activation stimulated IL-8 secretion and the expression of its receptor CXCR1 in ESCs by activating p38/ERK, but not JNK and NK-κB signal pathways. IL-8 could enhance the invasion and proliferation of ESCs through the FAK signal pathway, and these effects could be abolished by an anti-CXCL8 neutralizing antibody or by a FAK inhibitor.
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Affiliation(s)
- Xue-zhen Luo
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, China
| | - Wen-jie Zhou
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, China
| | - Yu Tao
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, China
| | - Xiao-qiu Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, China
| | - Da-jin Li
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai, China.,Department of Obstetrics and Gynecology, Hainan Medical College Affiliated Hospital, Haikou, China
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14
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MiR-183 Regulates ITGB1P Expression and Promotes Invasion of Endometrial Stromal Cells. BIOMED RESEARCH INTERNATIONAL 2015; 2015:340218. [PMID: 26357653 PMCID: PMC4556833 DOI: 10.1155/2015/340218] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 02/24/2015] [Indexed: 12/18/2022]
Abstract
We applied in the previous study miRNA microarray screening analysis to identify several differentially expressed miRNAs, including miR-183 in normal, eutopic, and ectopic endometrium. Knockdown of miR-183 expression induced the invasiveness and inhibition of apoptosis in endometrial stromal cells. The current study aims to identify the miR-183 targets with relevance to cell functions in endometrial stromal cells, to verify the interaction of miR-183 with its target genes, and to confirm the role of miR-183 in the process of endometriosis. Using microarray analysis, we identified 27 differentially expressed genes (19 were upregulated and 8 downregulated), from which we selected 4 downregulated genes (ITGB1, AMIGO2, VAV3, and PSEN2) based on GO databases for functional analysis and significant pathway analysis. Western blotting analyses showed that integrin β1 (ITGB1), but not AMIGO2, was affected by miR-183 overexpression, whereas no protein expression of VAV3 and PSEN2 was detected. Luciferase reporter assay verified that ITGB1 is a target gene of miR-183. Moreover, we found that ITGB1 is overexpressed in the endometrium of endometriosis patients. Furthermore, overexpression of ITGB1 rescued the repressive effects of miR-183 on the invasiveness of endometrial stromal cells. These findings, together with the fact that ITGB1 is a critical factor for cell adhesion and invasiveness, suggest that miR-183 may be involved in the development of endometriosis by regulating ITGB1 in endometrial stromal cells.
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15
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Wang Y, Chen H, Wang N, Guo H, Fu Y, Xue S, Ai A, Lyu Q, Kuang Y. Combined 17β-Estradiol with TCDD Promotes M2 Polarization of Macrophages in the Endometriotic Milieu with Aid of the Interaction between Endometrial Stromal Cells and Macrophages. PLoS One 2015; 10:e0125559. [PMID: 25950905 PMCID: PMC4423913 DOI: 10.1371/journal.pone.0125559] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 03/25/2015] [Indexed: 12/13/2022] Open
Abstract
The goal of this study is to elucidate the effects of 17β-estradiol and TCDD (2,3,7,8-tetrachlorodibenzo-p-dioxin) on macrophage phenotypes in the endometriotic milieu. Co-culture of endometrial stromal cells (ESCs) and U937 cells (macrophage cell line) was performed to simulate the endometriotic milieu and to determine the effects of 17β-estradiol and/or TCDD on IL10, IL12 production and HLA-DR, CD86 expression by U937 macrophages. We found that combining 17β-estradiol with TCDD has a synergistic effect on inducing M2 activation when macrophages are co-cultured with ESCs. Moreover, the combination of 17β-estradiol and TCDD significantly enhanced STAT3 and P38 phosphorylation in macrophages. Differentiation of M2 macrophages induced by 17β-estradiol and TCDD were effectively abrogated by STAT3 and P38MAPK inhibitors, but not by ERK1/2 and JNK inhibitors. In conclusion, 17β-estradiol and TCDD in the ectopic milieu may lead to the development of endometriosis by inducing M2 polarization of macrophages through activation of the STAT3 and P38MAPK pathways.
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Affiliation(s)
- Yun Wang
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
- * E-mail: (YW); (Y-PK)
| | - Hong Chen
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - NingLing Wang
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - HaiYan Guo
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Yonglun Fu
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Songguo Xue
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Ai Ai
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Qifeng Lyu
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
| | - Yanping Kuang
- Department of Assisted Reproduction, Shanghai ninth people’s hospital affiliated to JiaoTong University School of Medicine, Shanghai, China
- * E-mail: (YW); (Y-PK)
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16
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Yuan DP, Gu L, Long J, Chen J, Ni J, Qian N, Shi YL. Shikonin reduces endometriosis by inhibiting RANTES secretion and mononuclear macrophage chemotaxis. Exp Ther Med 2013; 7:685-690. [PMID: 24520268 PMCID: PMC3919901 DOI: 10.3892/etm.2013.1458] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 12/10/2013] [Indexed: 11/17/2022] Open
Abstract
Endometriosis is a common disease in females of reproductive age and has the classic characteristic of mononuclear cell infiltration into lesions. Shikonin is an anti-inflammatory phytocompound obtained from Lithospermum erythrorhizon whose potential therapeutic effects in the treatment of endometriosis remain unclear. The working hypothesis of the present study was that shikonin is capable of inhibiting the development of endometriosis by inhibiting the chemotactic effect. In a murine model of endometriosis, shikonin significantly inhibited the growth of human endometrial tissue implanted into severe combined immunodeficiency (SCID) mice (P<0.05) and no adverse effects were observed. Mouse regulated upon activation normal T-cell expressed and secreted (mRANTES) levels in the peritoneal fluid of the animal endometriosis model were higher than those in normal SCID mice (P<0.05) and decreased significantly following shikonin treatment in a dose-dependent manner (P<0.05). Peritoneal fluid from SCID mice treated with shikonin inhibited the chemotaxis of monocytes; this inhibitory effect was eradicated by mRANTES antibody. In vitro, shikonin significantly inhibited RANTES expression in U937 cells that were cultured alone or co-cultured with human mesothelial and endometrial stromal cells. In addition, shikonin inhibited the RANTES-induced chemotaxis of U937 cells (P<0.05). The results indicate that shikonin inhibits the development of endometriosis by various mechanisms, including the inhibition of RANTES expression and the reduction of mononuclear cell migration to lesions. Therefore, shikonin may be a novel, useful and safe agent for treating endometriosis.
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Affiliation(s)
- Dong-Ping Yuan
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China ; Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210004, P.R. China
| | - Lin Gu
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
| | - Jun Long
- Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210004, P.R. China
| | - Jie Chen
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
| | - Jie Ni
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
| | - Ning Qian
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
| | - Ying-Li Shi
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
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17
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Shi XY, Gu L, Chen J, Guo XR, Shi YL. Downregulation of miR-183 inhibits apoptosis and enhances the invasive potential of endometrial stromal cells in endometriosis. Int J Mol Med 2013; 33:59-67. [PMID: 24173391 PMCID: PMC3868559 DOI: 10.3892/ijmm.2013.1536] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 10/11/2013] [Indexed: 12/26/2022] Open
Abstract
Endometriosis is a common gynecological disease, yet its pathogenesis remains poorly understood. Recent studies have demonstrated that the aberrant expression of certain microRNAs (miRNAs) may correlate with the development and progression of endometriosis. In this study, we profiled several differentially expressed miRNAs in the normal, eutopic and ectopic endometrium by miRNA microarray screening analysis, among which, miR-183 was found to be downregulated in the ectopic and eutopic tissues, and the result was further confirmed by real-time PCR (qPCR). Functional analysis indicated that miR-183 plays a promotional role in endometrial stromal cell (ESC) apoptosis and has a negative regulatory impact on the invasive ability of cells, although it has no effect on ESC proliferation. Ovarian steroids (17β-estradiol and progesterone) and inflammatory factors (tumor necrosis factor-α and interleukin-6) decreased the expression of miR-183 in the ESCs. This regulatory function may further manifest the growth and invasive potential of ESCs by altering the expression of miR-183. These findings suggest that the downregulation of miR-183 expression is involved in the development and progression of endometriosis.
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Affiliation(s)
- Xiao-Yan Shi
- State Key Laboratory of Reproductive Medicine, Department of Gynecology, Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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18
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Regression of the inflammatory microenvironment of the peritoneal cavity in women with endometriosis by GnRHa treatment. Eur J Obstet Gynecol Reprod Biol 2013; 170:550-4. [DOI: 10.1016/j.ejogrb.2013.08.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Revised: 06/25/2013] [Accepted: 08/03/2013] [Indexed: 02/04/2023]
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19
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Borrelli GM, Carvalho KI, Kallas EG, Mechsner S, Baracat EC, Abrão MS. Chemokines in the pathogenesis of endometriosis and infertility. J Reprod Immunol 2013; 98:1-9. [PMID: 23622730 DOI: 10.1016/j.jri.2013.03.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 03/14/2013] [Accepted: 03/18/2013] [Indexed: 01/07/2023]
Abstract
Endometriosis is a chronic benign disease that affects women of reproductive age causing abdominal pain and infertility. Its pathogenesis remains obscure despite all the research conducted over the past 100 years. However, there is a consensus among the specialists that the basis of its pathophysiology would be multifactorial. Many publications have demonstrated that chemokines are somehow associated with the development of endometriosis and infertility. In this study, we reviewed all PubMed literature using MeSH terms "chemokines" and "endometriosis" as well as "chemokines" and "female infertility" to establish what we know and what we do not yet know about this relationship.
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Affiliation(s)
- G M Borrelli
- Sao Paulo University, School of Medicine, Department of Obstetrics and Gynecology, Sao Paulo, Brazil.
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20
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Reis FM, Petraglia F, Taylor RN. Endometriosis: hormone regulation and clinical consequences of chemotaxis and apoptosis. Hum Reprod Update 2013; 19:406-18. [PMID: 23539633 DOI: 10.1093/humupd/dmt010] [Citation(s) in RCA: 178] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The recruitment of immune cells by chemokines and the regulation of endometrial cell apoptosis are critical aspects of endometriosis biology. Here, we review the local (paracrine) and systemic hormone (endocrine) modulation of these two specific, but highly related phenomena. METHODS We searched Pubmed for items published in English between September 1991 and September 2011 and selected the studies evaluating the effects of hormones on chemokines or apoptosis in normal human endometrium and endometriosis. RESULTS Estradiol has proinflammatory and antiapoptotic effects in endometrial cells, and these effects appear to be exacerbated in women with endometriosis. In these women, physiological estradiol concentrations are able to induce an enhanced inflammatory response mediated by local chemokine production and to reinforce mechanisms of cell survival mediated by extracellular signal-regulated kinases and Bcl-2. The main effect of progestogens is to inhibit interleukin-8 and other chemokines in stromal cells from both eutopic and ectopic endometrium. Progesterone is also effective in inducing apoptosis in endometrial and endometriotic cells through the inhibition of Bcl-2 and nuclear factor-κB. CONCLUSIONS Estrogens and progestogens modulate chemotaxis and apoptosis in human endometrium and endometriotic cells and tissues. These endocrine and paracrine pathways are perturbed in women with endometriosis, contributing to inflammatory responses, abnormal tissue remodeling, therapeutic refractoriness and disease persistence. Ultimately, they promote adhesion formation and the clinical symptoms of pelvic pain and infertility. A more detailed understanding of the molecular mechanisms involved will offer new opportunities for novel pharmacological strategies to diagnose and treat endometriosis.
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Affiliation(s)
- Fernando M Reis
- Department of Obstetrics and Gynecology, University of Minas Gerais, Belo Horizonte, Brazil
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21
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Environmental Influences on the Development of Endometriosis. JOURNAL OF ENDOMETRIOSIS AND PELVIC PAIN DISORDERS 2013. [DOI: 10.5301/je.5000153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purpose Several environmental toxicants (ETs), including dioxins and dioxin-like compounds (DLCs), perfluorochemicals, organochlorine pesticides, phthalates, and heavy metals (especially cadmium with its estrogen-like properties in animal models) have been investigated as possibly being related to endometriosis. Methods Systematic review of pertinent literature. Results DLCs have been the most investigated ETs. DLCs are persistent organic pollutants with highly toxic potential and include three types of compounds: polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) or furans, and polychlorinated biphenyls (PCBs). The most toxic is 2, 3, 7, 8- tetrachlorodibenzo-p-dioxin (TCDD). The connection mechanism between dioxins and endometriosis is still unclear. However, dioxins and DLCs are endocrine-disrupting compounds that can affect the pathobiology of endometriosis at multiple levels. Part of the dioxin and DLCs toxic effects can be accounted for by their interaction with the aryl hydrocarbon receptor (AhR). It has been proposed that dioxin can initiate or promote endometriosis by means of interaction with estrogen receptors or by suppressing the expression of progesterone receptors. Furthermore, TCDD alters the expression of cytokines and growth factors, remodeling enzymes and cytochrome P450 expression and activity. Conclusions Studies in rhesus models have revealed a correlation between dioxin exposure and endometriosis. However, evidence from epidemiologic studies is inconclusive.
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22
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Li MQ, Luo XZ, Meng YH, Mei J, Zhu XY, Jin LP, Li DJ. CXCL8 enhances proliferation and growth and reduces apoptosis in endometrial stromal cells in an autocrine manner via a CXCR1-triggered PTEN/AKT signal pathway. Hum Reprod 2012; 27:2107-16. [PMID: 22563025 DOI: 10.1093/humrep/des132] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Chemokine CXCL8 (also known as IL-8) has been identified as a potential regulator of endometrial stromal cells (ESCs), but it is unclear how CXCL8 regulates the survival of ESCs in the pathogenesis of endometriosis. METHODS We assessed the secretion of CXCL8 by enzyme-linked immunosorbent assays and the expression of its receptors, CXCR1 and CXCR2, by in-cell Western assay and immunohistochemistry. The effects of CXCL8 on the activation or expression of various cell mediators were also investigated by in-cell Western assay. The effects of CXCL8 on the proliferation, growth and apoptosis of ESCs in vitro were assessed by BrdU assays, cell counts and annexin V labeling, respectively. RESULTS Secretion of CXCL8 and expression of CXCR1 in the eutopic ESCs from women with endometriosis were significantly higher than that in control ESCs, but the expression of CXCR2 showed no significant difference between these two cell types. CXCL8 stimulated proliferation and growth and reduced apoptosis of ESCs in an autocrine manner, and these effects were abolished by anti-human CXCL8 and CXCR1 neutralizing antibodies and by a PI3K/Akt inhibitor. Moreover, CXCL8 up-regulated the expression of the anti-apoptotic proteins, survivin and Bcl-2, inhibited the expression of the Phosphatase and tensin homolog (PTEN) and activated the phosphorylation of Akt. CONCLUSIONS This study suggests that CXCL8 and CXCR1 are involved in the pathogenesis of endometriosis by up-regulating proliferation and growth and restricting apoptosis in ESCs by activating the PTEN/Akt pathway and mediating the expression of survivin and Bcl-2.
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Affiliation(s)
- Ming-Qing Li
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, IBS, Fudan University Shanghai Medical College, Shanghai 200011, China
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Li MQ, Li HP, Meng YH, Wang XQ, Zhu XY, Mei J, Li DJ. Chemokine CCL2 enhances survival and invasiveness of endometrial stromal cells in an autocrine manner by activating Akt and MAPK/Erk1/2 signal pathway. Fertil Steril 2012; 97:919-29. [DOI: 10.1016/j.fertnstert.2011.12.049] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 12/14/2011] [Accepted: 12/28/2011] [Indexed: 10/14/2022]
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Li MQ, Hou XF, Lv SJ, Meng YH, Wang XQ, Tang CL, Li DJ. CD82 gene suppression in endometrial stromal cells leads to increase of the cell invasiveness in the endometriotic milieu. J Mol Endocrinol 2011; 47:195-208. [PMID: 21685244 DOI: 10.1530/jme-10-0165] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tetraspanin CD82 is a wide-spectrum tumor metastasis suppressor that inhibits motility and invasiveness of cancer cells. Endometriosis is a benign gynecological disorder, but appears malignant behaviors including invasion, ectopic implantation and recurrence. This study is to elucidate the role of CD82 expression regulation in the pathogenesis of endometriosis. The short interfering RNA silence was established to analyze the roles of CD82, chemokine CCL2, and its receptor CCR2 in the invasiveness of endometrial stromal cells (ESCs). We have found that the mRNA and protein levels of CD82 in the primary normal ESCs from endometrium without endometriosis are significantly higher than that of the primary ESCs from eutopic endometrium and ectopic tissue. CD82 inhibits the invasiveness of ESCs by downregulating CCL2 secretion and CCR2 expression via mitogen-activated protein kinase (MAPK) and integrinβ1 signal pathway, and in turn upregulating the expression of TIMP1 and TIMP2 in an autocrine manner. The combination of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) with 17β-estradiol can promote the invasion of ESCs via suppressing CD82 expression and stimulating CCL2 secretion and CCR2 expression, and the enhanced interaction of CCL2-CCR2 recruits more macrophages into the ectopic milieu in a paracrine manner, which further downregulates CD82 expression in the ectopic ESCs. Our study has demonstrated for the first time that the abnormal lower CD82 expression in ESCs induced by TCDD and estrogen may be an important molecular basis of endometriosis pathogenesis through enhancing the CCL2 secretion and CCR2 expression and the invasion of ESCs via MAPK and integrinβ1 signal pathway.
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Affiliation(s)
- Ming-Qing Li
- Laboratory for Reproductive Immunology, Fudan University Shanghai Medical College, Hospital and Institute of Obstetrics and Gynecology, IBS, Shanghai 200011, People's Republic of China
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Chalupka S, Chalupka AN. The impact of environmental and occupational exposures on reproductive health. J Obstet Gynecol Neonatal Nurs 2010; 39:84-102. [PMID: 20409107 DOI: 10.1111/j.1552-6909.2009.01091.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Environmental exposures during critical periods of susceptibility in utero may result in lifelong or intergenerational adverse health effects. Most chemicals in commercial use in the United States have not been tested for possible developmental toxicity to fetuses, infants, and children. Environmental and occupational exposures can result in adverse effects on female and male reproduction. Nurses can identify at-risk patients, provide education about the impact of chemical toxicants, and empower women to take precautionary action.
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Affiliation(s)
- Stephanie Chalupka
- Graduate Nursing Program, Worcester State College, Worcester, MA and a visiting scientist in Occupational and Environmental Health, Harvard School of Public Health, Boston, MA..
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26
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Wang Y, Yu J, Luo X, Wang X, Li M, Wang L, Li D. Abnormal regulation of chemokine TECK and its receptor CCR9 in the endometriotic milieu is involved in pathogenesis of endometriosis by way of enhancing invasiveness of endometrial stromal cells. Cell Mol Immunol 2010; 7:51-60. [PMID: 20081876 DOI: 10.1038/cmi.2009.102] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The chemokine thymus-expressed chemokine (TECK), which regulates T-cell development and tissue-specific homing, has been identified as a potential contributor to the pathogenesis and progression of endometriosis. Dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin, TCDD), an air pollutant, and estrogen also appear to be involved in endometriosis. Both endometrial stromal cells (ESCs) and the combination of 17beta-estradiol and TCDD increase the secretion of TECK in the endometriosis-associated cells and promote the invasiveness of ESCs by increasing expression of matrix metalloproteinase (MMP)-2 and MMP-9. Anti-TECK neutralizing antibodies can effectively inhibit the invasiveness of ESCs and the expression of MMP-2 and MMP-9 in the cells. Interestingly, the expression of chemokine C receptor 9 (CCR9) and its ligand TECK increases significantly in the endometriotic milieu of patients with endometriosis. Therefore, the over-expressed TECK interacts with CCR9 on the ESCs in the endometriotic milieu, which may contribute to the onset and progression of endometriosis.
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Affiliation(s)
- Yun Wang
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Shanghai Medical College of Fudan University, Shanghai 200011, China
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Guo SW, Simsa P, Kyama CM, Mihalyi A, Fulop V, Othman EER, D'Hooghe TM. Reassessing the evidence for the link between dioxin and endometriosis: from molecular biology to clinical epidemiology. Mol Hum Reprod 2009; 15:609-24. [DOI: 10.1093/molehr/gap075] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Bruner-Tran KL, Yeaman GR, Crispens MA, Igarashi TM, Osteen KG. Dioxin may promote inflammation-related development of endometriosis. Fertil Steril 2008; 89:1287-98. [PMID: 18394613 DOI: 10.1016/j.fertnstert.2008.02.102] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Revised: 02/08/2008] [Accepted: 02/08/2008] [Indexed: 01/09/2023]
Abstract
Laboratory and population-based studies suggest that exposure to environmental toxicants may be one of several triggers for the development of endometriosis. We discuss evidence that modulation of the endometrial endocrine-immune interface could mechanistically link toxicant exposure to the development of this disease.
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Affiliation(s)
- Kaylon L Bruner-Tran
- Women's Reproductive Health Research Center, Department of Obstetrics and Gynecology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA
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29
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Mendola P, Messer LC, Rappazzo K. Science linking environmental contaminant exposures with fertility and reproductive health impacts in the adult female. Fertil Steril 2008; 89:e81-94. [PMID: 18308071 DOI: 10.1016/j.fertnstert.2007.12.036] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
STUDY OBJECTIVE To broadly review the recent literature linking environmental factors and adult female reproductive health for the UCSF-CHE Summit on Environmental Challenges to Reproductive Health and Fertility. DESIGN Reviewed articles indexed in PubMed from 1999-2007 addressing environment and puberty, menstrual and ovarian function, fertility, and menopause. RESULT(S) The strongest evidence of environmental contaminant exposures interfering with healthy reproductive function in adult females is for heavy metals, particularly lead. Compounds that can influence hormone function, including pesticides and persistent pollutants, are also associated with risk. The pattern of effects for these endocrine-active compounds is often complex, with no clear dose response, but alterations in function and poor reproductive health outcomes are observed. From a clinical perspective, most modifiable risk appears to be associated with exposures in unique populations (contaminated fish consumers) or occupational groups (farmworkers). Many compounds have demonstrated increased risks for reproductive health impairment in women, but the literature is largely cross-sectional in nature and too sparse or inconclusive to support causal inference. CONCLUSION(S) Reproductive function in adult females is impaired by lead exposure. Pesticides and persistent pollutants can alter hormone function resulting in adverse reproductive health effects. Coordinated research is needed to address contaminant effects across the life span.
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Affiliation(s)
- Pauline Mendola
- US EPA, Human Studies Division, National Health and Environmental Effects Research Laboratory, Research Triangle Park, North Carolina 27711, USA.
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Shi YL, Luo XZ, Zhu XY, Li DJ. Combination of 17β-estradiol with the environmental pollutant TCDD is involved in pathogenesis of endometriosis via up-regulating the chemokine I-309–CCR8. Fertil Steril 2007; 88:317-25. [PMID: 17693327 DOI: 10.1016/j.fertnstert.2006.11.129] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2006] [Revised: 11/21/2006] [Accepted: 11/21/2006] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To explore the effects of the combined E(2) with the environmental pollutant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on CCR8-I-309 expression by the endometriotic lesion-associated cells in the pathogenesis of endometriosis. DESIGN Prospective laboratory study. SETTING University hospital. PATIENT(S) Chinese women with endometriosis. INTERVENTION(S) The endometriotic tissue and matched eutopic endometrium were collected. Endometrial stromal cells (ESCs), HPMC, and U937 cells were treated with 17beta-E(2) or TCDD. The ESCs were stimulated with I-309. MAIN OUTCOME MEASURE(S) The expression of CCR8 in tissues was analyzed by reverse transcription-polymerase chain reaction and immunohistochemistry. The effect of I-309 on integrin beta1 and alphavbeta3 expression intensity was analyzed by flow cytometry, and the chemotactic activity of I-309 on the ESC was explored by chemotactic assay. Concentration of I-309 in the culture supernatant was quantified by enzyme-linked immunosorbent assay. RESULT(S) CCR8 was overexpressed in the endometriotic tissue. I-309 promoted the expression of integrin beta1. Estradiol and TCDD up-regulated CCR8 expression by ESCs. Estradiol magnified the stimulatory effect of TCDD on I-309 secretion by U937. The interaction of HPMC and U937 cells promoted I-309 secretion. CONCLUSION(S) These findings imply that the combination of 17beta-E(2) with the environmental pollutant TCDD is involved in the pathogenesis of endometriosis via up-regulating the chemokine CCR8-I-309.
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Affiliation(s)
- Ying-Li Shi
- Laboratory for Reproductive Immunology, Hospital and Institute of Obstetrics and Gynecology, Fudan University Shanghai Medical College, Shanghai, China
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Nayyar T, Bruner-Tran KL, Piestrzeniewicz-Ulanska D, Osteen KG. Developmental exposure of mice to TCDD elicits a similar uterine phenotype in adult animals as observed in women with endometriosis. Reprod Toxicol 2006; 23:326-36. [PMID: 17056225 PMCID: PMC1885235 DOI: 10.1016/j.reprotox.2006.09.007] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2006] [Revised: 08/28/2006] [Accepted: 09/18/2006] [Indexed: 12/23/2022]
Abstract
Whether environmental toxicants impact an individual woman's risk for developing endometriosis remains uncertain. Although the growth of endometrial glands and stroma at extra-uterine sites is associated with retrograde menstruation, our studies suggest that reduced responsiveness to progesterone may increase the invasive capacity of endometrial tissue in women with endometriosis. Interestingly, our recent studies using isolated human endometrial cells in short-term culture suggest that experimental exposure to the environmental contaminant 2,3,7,8-tetracholorodibenzo-p-dioxin (TCDD) can alter the expression of progesterone receptor isotypes. Compared to adult exposure, toxicant exposure during development can exert a significantly greater biological impact, potentially affecting the incidence of endometriosis in adults. To address this possibility, we exposed mice to TCDD at critical developmental time points and subsequently examined uterine progesterone receptor expression and steroid responsive transforming growth factor-beta2 expression in adult animals. We find that the uterine phenotype of toxicant-exposed mice is markedly similarly to the endometrial phenotype of women with endometriosis.
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Affiliation(s)
- Tultul Nayyar
- Women's Reproductive Health Research Center, Department of Obstetrics & Gynecology, Vanderbilt University School of Medicine, 1161 21st Avenue S, MCN B-1100, Nashville, TN 37232, USA
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