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Clark AL. Genitourinary syndrome of menopause-I know it when I see it-or do I? Menopause 2023; 30:785-787. [PMID: 37498218 DOI: 10.1097/gme.0000000000002228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Affiliation(s)
- Amanda L Clark
- From Oregon Health & Science University and Kaiser Permanente Center for Health Research, Portland, OR
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2
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Viti F, Pramotton FM, Martufi M, Magrassi R, Pedemonte N, Nizzari M, Zanacchi FC, De Michele B, Alampi M, Zambito M, Santamaria G, Bajetto A, Sardar S, Tomati V, Gandullia P, Giampietro C, Florio T, Beltrame F, Vassalli M, Ceccherini I. Patient's dermal fibroblasts as disease markers for visceral myopathy. BIOMATERIALS ADVANCES 2023; 148:213355. [PMID: 36893487 DOI: 10.1016/j.bioadv.2023.213355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 02/09/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Visceral myopathy (VSCM) is a rare genetic disease, orphan of pharmacological therapy. VSCM diagnosis is not always straightforward due to symptomatology similarities with mitochondrial or neuronal forms of intestinal pseudo-obstruction. The most prevalent form of VSCM is associates with variants in the gene ACTG2, encoding the protein gamma-2 actin. Overall, VSCM is a mechano-biological disorder, in which different genetic variants lead to similar alterations to the contractile phenotype of enteric smooth muscles, resulting in the emergence of life-threatening symptoms. In this work we analyzed the morpho-mechanical phenotype of human dermal fibroblasts from patients affected with VSCM, demonstrating that they retain a clear signature of the disease when compared with different controls. We evaluated several biophysical traits of fibroblasts, and we show that a measure of cellular traction forces can be used as a non-specific biomarker of the disease. We propose that a simple assay based on traction forces could be designed to provide a valuable support for clinical decision or pre-clinical research.
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Affiliation(s)
- Federica Viti
- Istituto di Biofisica - Consiglio Nazionale delle Ricerche, Via De Marini 16, 16149 Genova, Italy.
| | - Francesca Micaela Pramotton
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland; ETH Zurich, The Institute for Mechanical Systems, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Michela Martufi
- Istituto di Biofisica - Consiglio Nazionale delle Ricerche, Via De Marini 16, 16149 Genova, Italy; Dipartimento Medicina Interna, Sezione di Farmacologia, Università di Genova, viale Benedetto XV, 2, 16132 Genova, Italy
| | - Raffaella Magrassi
- Istituto di Biofisica - Consiglio Nazionale delle Ricerche, Via De Marini 16, 16149 Genova, Italy
| | - Nicoletta Pedemonte
- UOC Genetica Medica, IRCCS Istituto Giannina Gaslini, Via Gaslini 5, 16147 Genova, Italy
| | - Mario Nizzari
- Istituto di Biofisica - Consiglio Nazionale delle Ricerche, Via De Marini 16, 16149 Genova, Italy
| | | | - Benedetta De Michele
- Istituto di Biofisica - Consiglio Nazionale delle Ricerche, Via De Marini 16, 16149 Genova, Italy
| | - Manuela Alampi
- Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genoa, Viale Causa, 13, 16145 Genova, Italy
| | - Martina Zambito
- Dipartimento Medicina Interna, Sezione di Farmacologia, Università di Genova, viale Benedetto XV, 2, 16132 Genova, Italy
| | - Giuseppe Santamaria
- UOSD Laboratorio di Genetica e Genomica delle Malattie Rare, IRCCS Istituto Giannina Gaslini, Via Gaslini 5, 16147 Genova, Italy
| | - Adriana Bajetto
- Dipartimento Medicina Interna, Sezione di Farmacologia, Università di Genova, viale Benedetto XV, 2, 16132 Genova, Italy
| | - Sabah Sardar
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, Oakfield avenue, G128LT Glasgow, UK
| | - Valeria Tomati
- UOC Genetica Medica, IRCCS Istituto Giannina Gaslini, Via Gaslini 5, 16147 Genova, Italy
| | - Paolo Gandullia
- UOC Pediatric Gastroenterology and Digestive Endoscopy, IRCCS Istituto Giannina Gaslini, Via Gaslini 5, 16147 Genova, Italy
| | - Costanza Giampietro
- EMPA, Swiss Federal Laboratories for Materials Science and Technology, Ueberlandstrasse 129, 8600 Dübendorf, Switzerland; ETH Zurich, The Institute for Mechanical Systems, Leonhardstrasse 21, 8092 Zürich, Switzerland
| | - Tullio Florio
- Dipartimento Medicina Interna, Sezione di Farmacologia, Università di Genova, viale Benedetto XV, 2, 16132 Genova, Italy; IRCCS Ospedale Policlinico San Martino, Largo rosanna benzi 10, 16132 Genova, Italy
| | - Francesco Beltrame
- Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genoa, Viale Causa, 13, 16145 Genova, Italy
| | - Massimo Vassalli
- Centre for the Cellular Microenvironment, James Watt School of Engineering, University of Glasgow, Oakfield avenue, G128LT Glasgow, UK
| | - Isabella Ceccherini
- UOSD Laboratorio di Genetica e Genomica delle Malattie Rare, IRCCS Istituto Giannina Gaslini, Via Gaslini 5, 16147 Genova, Italy
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3
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Clark-Patterson GL, Buchanan LM, Ogola BO, Florian-Rodriguez M, Lindsey SH, De Vita R, Miller KS. Smooth muscle contribution to vaginal viscoelastic response. J Mech Behav Biomed Mater 2023; 140:105702. [PMID: 36764168 DOI: 10.1016/j.jmbbm.2023.105702] [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: 11/09/2022] [Revised: 01/22/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
Smooth muscle cells contribute to the mechanical function of various soft tissues, however, their contribution to the viscoelastic response when subjected to multiaxial loading remains unknown. The vagina is a fibromuscular viscoelastic organ that is exposed to prolonged and increased pressures with daily activities and physiologic processes such as vaginal birth. The vagina changes in geometry over time under prolonged pressure, known as creep. Vaginal smooth muscle cells may contribute to creep. This may be critical for the function of vaginal and other soft tissues that experience fluctuations in their biomechanical environment. Therefore, the objective of this study was to develop methods to evaluate the contribution of smooth muscle to vaginal creep under multiaxial loading using extension - inflation tests. The vaginas from wildtype mice (C57BL/6 × 129SvEv; 3-6 months; n = 10) were stimulated with various concentrations of potassium chloride then subjected to the measured in vivo pressure (7 mmHg) for 100 s. In a different cohort of mice (n = 5), the vagina was stimulated with a single concentration of potassium chloride then subjected to 5 and 15 mmHg. A laser micrometer measured vaginal outer diameter in real-time. Immunofluorescence evaluated the expression of alpha-smooth muscle actin and myosin heavy chain in the vaginal muscularis (n = 6). When smooth muscle contraction was activated, vaginal creep behavior increased compared to the relaxed state. However, increased pressure decreased the active creep response. This study demonstrated that extension - inflation protocols can be used to evaluate smooth muscle contribution to the viscoelastic response of tubular soft tissues.
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Affiliation(s)
| | - Lily M Buchanan
- University of Texas at Dallas, Department of Bioengineering, 800 W. Campbell Road, Richardson, TX, 75080, USA.
| | - Benard O Ogola
- Augusta University, Vascular Biology Center, Medical College of Georgia at Augusta University, 1460 Laney Walker Blvd, Augusta, GA, 30912, USA.
| | - Maria Florian-Rodriguez
- University of Texas Southwestern Medical Center, Department of Obstetrics and Gynecology, Division of Female Pelvic Medicine and Reconstructive Surgery and Cecil H and Ida Green Center for Reproductive Biological Sciences, 5323 Harry Hines Boulevard, Dallas, TX, 75390-9032, USA.
| | - Sarah H Lindsey
- Tulane University School of Medicine, Department of Pharmacology, 1430 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Raffaella De Vita
- Virginia Tech,Department of Biomedical Engineering and Mechanics, 330 A Kelly Hall, 325 Stanger St, Blacksburg, VA, 24061, USA.
| | - Kristin S Miller
- Tulane University, Department of Biomedical Engineering, 6823 St Charles Ave, New Orleans, LA, 70118, USA; University of Texas at Dallas, Department of Bioengineering, 800 W. Campbell Road, Richardson, TX, 75080, USA.
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4
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Ma Y, Zhang Y, Chen J, Li L, Liu X, Zhang L, Ma C, Wang Y, Tian W, Song X, Li Y, Zhu L. Mesenchymal stem cell-based bioengineered constructs enhance vaginal repair in ovariectomized rhesus monkeys. Biomaterials 2021; 275:120863. [PMID: 34139509 DOI: 10.1016/j.biomaterials.2021.120863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/24/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022]
Abstract
Transvaginal meshes repair for treating pelvic organ prolapse (POP) was halted by the U. S. Food and Drug Administration (FDA) because they can lead to severe complications. Therefore, investigations of new therapeutic strategies are urgently needed. Cell-based regenerative therapy holds great promise for the repair and restoration of damaged tissue. Here, we generated a bioengineered graft by seeding human umbilical cord mesenchymal stem cells (HUMSCs) on bioscaffolds to reconstruct the damaged vagina. In the in vitro study, HUMSCs proliferated well and the density was appropriate after 5 days of culture. Besides, we demonstrated that the differentiation potential of HUMSCs was maintained with external growth factor stimulation. The complete transcriptomic profile of HUMSCs revealed that HUMSCs cultured on grafts produced significantly higher levels of proangiogenic cytokines than cells cultured in tissue culture plates (TCPs). Three months after implantation of the bioengineered grafts into ovariectomized (OVX) rhesus monkeys via sacrocolpopexy, extracellular matrix reorganization, large muscle bundle formation, angiogenesis and, mechanical properties of the vagina were enhanced. To our knowledge, this is the first demonstration of the utility of stem cell-based bioengineered grafts for repairing damaged vaginal tissue in rhesus monkeys. These results elucidate a new approach for vagina repair and provide new ideas for treating POP.
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Affiliation(s)
- Yidi Ma
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Ye Zhang
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Juan Chen
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Lei Li
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xudong Liu
- Medical Science Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China
| | - Lin Zhang
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Congcong Ma
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yuan Wang
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Weijie Tian
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Xiaochen Song
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China
| | - Yaqian Li
- Medical Science Research Center, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.
| | - Lan Zhu
- Department of Obstetrics and Gynaecology, National Clinical Research Center for Obstetric & Gynecologic Diseases, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
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5
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Li Y, Zhang QY, Sun BF, Ma Y, Zhang Y, Wang M, Ma C, Shi H, Sun Z, Chen J, Yang YG, Zhu L. Single-cell transcriptome profiling of the vaginal wall in women with severe anterior vaginal prolapse. Nat Commun 2021; 12:87. [PMID: 33397933 PMCID: PMC7782707 DOI: 10.1038/s41467-020-20358-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 11/30/2020] [Indexed: 12/20/2022] Open
Abstract
Anterior vaginal prolapse (AVP) is the most common form of pelvic organ prolapse (POP) and has deleterious effects on women's health. Despite recent advances in AVP diagnosis and treatment, a cell atlas of the vaginal wall in AVP has not been constructed. Here, we employ single-cell RNA-seq to construct a transcriptomic atlas of 81,026 individual cells in the vaginal wall from AVP and control samples and identify 11 cell types. We reveal aberrant gene expression in diverse cell types in AVP. Extracellular matrix (ECM) dysregulation and immune reactions involvement are identified in both non-immune and immune cell types. In addition, we find that several transcription factors associated with ECM and immune regulation are activated in AVP. Furthermore, we reveal dysregulated cell-cell communication patterns in AVP. Taken together, this work provides a valuable resource for deciphering the cellular heterogeneity and the molecular mechanisms underlying severe AVP.
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Affiliation(s)
- Yaqian Li
- Medical Science Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 100730, Beijing, China
| | - Qing-Yang Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101, Beijing, China
- Sino-Danish College, University of Chinese Academy of Sciences, 101408, Beijing, China
| | - Bao-Fa Sun
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101, Beijing, China
- China National Center for Bioinformation, 100101, Beijing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
- Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China
| | - Yidi Ma
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Ye Zhang
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Min Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Congcong Ma
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Honghui Shi
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Zhijing Sun
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Juan Chen
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China
| | - Yun-Gui Yang
- CAS Key Laboratory of Genomic and Precision Medicine, Collaborative Innovation Center of Genetics and Development, College of Future Technology, Beijing Institute of Genomics, Chinese Academy of Sciences, 100101, Beijing, China.
- China National Center for Bioinformation, 100101, Beijing, China.
- University of Chinese Academy of Sciences, 100049, Beijing, China.
- Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, 100101, Beijing, China.
| | - Lan Zhu
- Departments of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100730, Beijing, China.
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Khadzhieva MB, Kolobkov DS, Kamoeva SV, Salnikova LE. Expression changes in pelvic organ prolapse: a systematic review and in silico study. Sci Rep 2017; 7:7668. [PMID: 28794464 PMCID: PMC5550478 DOI: 10.1038/s41598-017-08185-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/05/2017] [Indexed: 01/23/2023] Open
Abstract
Pelvic organ prolapse (POP) is a highly disabling condition common for a vast number of women worldwide. To contribute to existing knowledge in POP pathogenesis, we performed a systematic review of expression studies on both specific gene and whole-genome/proteome levels and an in silico analysis of publicly available datasets related to POP development. The most extensively investigated genes in individual studies were related to extracellular matrix (ECM) organization. Three premenopausal and two postmenopausal sets from two Gene Expression Omnibus (GEO) studies (GSE53868 and GSE12852) were analyzed; Gene Ontology (GO) terms related to tissue repair (locomotion, biological adhesion, immune processes and other) were enriched in all five datasets. Co-expression was higher in cases than in controls in three premenopausal sets. The shared between two or more datasets up-regulated genes were enriched with those related to inflammatory bowel disease (IBD) in the NHGRI GWAS Catalog. ECM-related genes were not over-represented among differently expressed genes. Up-regulation of genes related to tissue renewal probably reflects compensatory mechanisms aimed at repair of damaged tissue. Inefficiency of this process may have different origins including age-related deregulation of gene expression.
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Affiliation(s)
- Maryam B Khadzhieva
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkina str., Moscow, 119333, Russia.,Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, 1 Samory Mashela str., Moscow, 117997, Russia
| | - Dmitry S Kolobkov
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkina str., Moscow, 119333, Russia
| | - Svetlana V Kamoeva
- Pirogov Russian National Research Medical University, 1 Ostrovitianov str., Moscow, 117997, Russia
| | - Lyubov E Salnikova
- Vavilov Institute of General Genetics, Russian Academy of Sciences, 3 Gubkina str., Moscow, 119333, Russia. .,Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, 1 Samory Mashela str., Moscow, 117997, Russia.
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Chen X, Kong X, Liu D, Gao P, Zhang Y, Li P, Liu M. In vitro differentiation of endometrial regenerative cells into smooth muscle cells: Α potential approach for the management of pelvic organ prolapse. Int J Mol Med 2016; 38:95-104. [PMID: 27221348 PMCID: PMC4899030 DOI: 10.3892/ijmm.2016.2593] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 05/05/2016] [Indexed: 12/21/2022] Open
Abstract
Pelvic organ prolapse (POP), is a common condition in parous women. Synthetic mesh was once considered to be the standard of care; however, the use of synthetic mesh is limited by severe complications, thus creating a need for novel approaches. The application of cell-based therapy with stem cells may be an ideal alternative, and specifically for vaginal prolapse. Abnormalities in vaginal smooth muscle (SM) play a role in the pathogenesis of POP, indicating that smooth muscle cells (SMCs) may be a potential therapeutic target. Endometrial regenerative cells (ERCs) are an easily accessible, readily available source of adult stem cells. In the present study, ERCs were obtained from human menstrual blood, and phase contrast microscopy and flow cytometry were performed to characterize the morphology and phenotype of the ERCs. SMC differentiation was induced by a transforming growth factor β1-based medium, and the induction conditions were optimized. We defined the SMC characteristics of the induced cells with regard to morphology and marker expression using transmission electron microscopy, western blot analysis, immunocytofluorescence and RT-PCR. Examining the expression of the components of the Smad pathway and phosphorylated Smad2 and Smad3 by western blot analysis, RT-PCR and quantitative PCR demonstrated that the 'TGFBR2/ALK5/Smad2 and Smad3' pathway is involved, and both Smad2 and Smad3 participated in SMC differentiation. Taken together, these findings indicate that ERCs may be a promising cell source for cellular therapy aimed at modulating SM function in the vagina wall and pelvic floor in order to treat POP.
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Affiliation(s)
- Xiuhui Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Xianchao Kong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Dongzhe Liu
- Department of Oncology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Peng Gao
- Department of Surgery, Harbin Children's Hospital, Harbin, Heilongjiang 150001, P.R. China
| | - Yanhua Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Peiling Li
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Meimei Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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Giri A, Wu JM, Ward RM, Hartmann KE, Park AJ, North KE, Graff M, Wallace RB, Bareh G, Qi L, O'Sullivan MJ, Reiner AP, Edwards TL, Velez Edwards DR. Genetic Determinants of Pelvic Organ Prolapse among African American and Hispanic Women in the Women's Health Initiative. PLoS One 2015; 10:e0141647. [PMID: 26545240 PMCID: PMC4636147 DOI: 10.1371/journal.pone.0141647] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 10/12/2015] [Indexed: 12/14/2022] Open
Abstract
Current evidence suggests a multifactorial etiology to pelvic organ prolapse (POP), including genetic predisposition. We conducted a genome-wide association study of POP in African American (AA) and Hispanic (HP) women from the Women's Health Initiative Hormone Therapy study. Cases were defined as any POP (grades 1-3) or moderate/severe POP (grades 2-3), while controls had grade 0 POP. We performed race-specific multiple logistic regression analyses between SNPs imputed to 1000 genomes in relation to POP (grade 0 vs 1-3; grade 0 vs 2-3) adjusting for age at diagnosis, body mass index, parity, and genetic ancestry. There were 1274 controls and 1427 cases of any POP and 317 cases of moderate/severe POP. Although none of the analyses reached genome-wide significance (p<5x10-8), we noted variants in several loci that met p<10-6. In race-specific analysis of grade 0 vs 2-3, intronic SNPs in the CPE gene (rs28573326, OR:2.14; 95% CI 1.62-2.83; p = 1.0x10-7) were associated with POP in AAs, and SNPs in the gene AL132709.5 (rs1950626, OR:2.96; 95% CI 1.96-4.48, p = 2.6x10-7) were associated with POP in HPs. Inverse variance fixed-effect meta-analysis of the race-specific results showed suggestive signals for SNPs in the DPP6 gene (rs11243354, OR:1.36; p = 4.2x10-7) in the grade 0 vs 1-3 analyses and for SNPs around PGBD5 (rs740494, OR:2.17; p = 8.6x10-7) and SHC3 (rs2209875, OR:0.60; p = 9.3x10-7) in the grade 0 vs 2-3 analyses. While we did not identify genome-wide significant findings, we document several SNPs reaching suggestive statistical significance. Further interrogation of POP in larger minority samples is warranted.
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Affiliation(s)
- Ayush Giri
- Institute for Medicine and Public Health, Vanderbilt Epidemiology Center, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Jennifer M. Wu
- Department of Obstetrics and Gynecology, Center for Women’s Health Research, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Renee M. Ward
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Katherine E. Hartmann
- Institute for Medicine and Public Health, Vanderbilt Epidemiology Center, Vanderbilt University, Nashville, Tennessee, United States of America
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Amy J. Park
- Department of Obstetrics and Gynecology and Urology, Georgetown University Medical Center, Washington, DC, United States of America
| | - Kari E. North
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Mariaelisa Graff
- Department of Epidemiology, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Robert B. Wallace
- Department of Epidemiology, University of Iowa, Iowa City, Iowa, United States of America
| | - Gihan Bareh
- Department of Obstetrics and Gynecology, Loma Linda University, Loma Linda, California, United States of America
| | - Lihong Qi
- Department of Public Health Sciences, University of California, Davis, California, United States of America
| | - Mary J. O'Sullivan
- Department of Obstetrics and Gynecology, University of Miami, Miami, Florida, United States of America
| | - Alexander P. Reiner
- Department of Epidemiology, University of Washington, Seattle, Washington, United States of America
| | - Todd L. Edwards
- Institute for Medicine and Public Health, Vanderbilt Epidemiology Center, Vanderbilt University, Nashville, Tennessee, United States of America
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Genetics Institute, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Digna R. Velez Edwards
- Institute for Medicine and Public Health, Vanderbilt Epidemiology Center, Vanderbilt University, Nashville, Tennessee, United States of America
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Vanderbilt Genetics Institute, Vanderbilt University, Nashville, Tennessee, United States of America
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9
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The role of smooth muscle cells in the pathophysiology of pelvic organ prolapse. Female Pelvic Med Reconstr Surg 2013; 19:254-9. [PMID: 23982572 DOI: 10.1097/spv.0b013e31829ff74d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Pelvic organ prolapse (POP) is a prevalent and disabling condition. The pathophysiology of prolapse is multifactorial, and no single mechanism adequately explains all aspects of its development. The pathophysiology of POP is complex and incompletely understood. Smooth muscle (SM), an integral part of the vaginal wall and endopelvic structures that support the pelvic viscera, has also been implicated in the pathophysiology of POP. In this article, we review the role of smooth muscle cells (SMC) in the pathophysiology of POP, also addressing the anatomy of SM in pelvic floor, morphometric analysis, biomechanical properties, and potential mechanisms.
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Basha ME, Chang S, Burrows LJ, Lassmann J, Wein AJ, Moreland RS, Chacko S. Effect of estrogen on molecular and functional characteristics of the rodent vaginal muscularis. J Sex Med 2013; 10:1219-30. [PMID: 23438289 DOI: 10.1111/jsm.12088] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Vaginal atrophy is a consequence of menopause; however, little is known concerning the effect of a decrease in systemic estrogen on vaginal smooth muscle structure and function. As the incidence of pelvic floor disorders increases with age, it is important to determine if estrogen regulates the molecular composition and contractility of the vaginal muscularis. AIM The goal of this study was to determine the effect of estrogen on molecular and functional characteristics of the vaginal muscularis utilizing a rodent model of surgical menopause. METHODS Three- to 4-month old Sprague-Dawley rats underwent sham laparotomy (Sham, N = 18) or ovariectomy (Ovx, N = 39). Two weeks following surgery, animals received a subcutaneous osmotic pump containing vehicle (Sham, Ovx) or 17β-estradiol (Ovx). Animals were euthanized 1 week later, and the proximal vagina was collected for analysis of contractile protein expression and in vitro studies of contractility. Measurements were analyzed using a one-way analysis of variance followed by Tukey's post hoc analysis (α = 0.05). MAIN OUTCOME MEASURES Protein and mRNA transcript expression levels of contractile proteins, in vitro measurements of vaginal contractility. RESULTS Ovariectomy decreased the expression of carboxyl-terminal myosin heavy chain isoform (SM1) and h-caldesmon and reduced the amplitude of contraction of the vaginal muscularis in response to KCl. Estradiol replacement reversed these changes. No differences were detected in the % vaginal muscularis, mRNA transcript expression of amino-terminal MHC isoforms, l-caldesmon expression, and maximal velocity of shortening. CONCLUSION Systemic estrogen replacement restores functional and molecular characteristics of the vaginal muscularis of ovariectomized rats. Our results indicate that menopause is associated with changes in the vaginal muscularis, which may contribute to the increased incidence of pelvic floor disorders with age.
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Affiliation(s)
- Maureen E Basha
- Department of Human Science, School of Nursing and Health Studies, Georgetown University, Washington, DC 20057, USA.
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Adammek M, Greve B, Kässens N, Schneider C, Brüggemann K, Schüring AN, Starzinski-Powitz A, Kiesel L, Götte M. MicroRNA miR-145 inhibits proliferation, invasiveness, and stem cell phenotype of an in vitro endometriosis model by targeting multiple cytoskeletal elements and pluripotency factors. Fertil Steril 2013; 99:1346-1355.e5. [PMID: 23312222 DOI: 10.1016/j.fertnstert.2012.11.055] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 11/15/2012] [Accepted: 11/30/2012] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To study the function of miR-145, known to be dysregulated in endometriosis, and to identify its target genes in an in vitro endometriosis model. DESIGN Experimental laboratory study. SETTING University medical centers. PATIENT(S) Primary endometrial stroma cells were derived from eutopic endometrium of three American Society for Reproductive Medicine stage III endometriosis patients and from ectopic lesions of four patients with deep infiltrating endometriosis. INTERVENTION(S) The human endometriotic cell line 12Z and primary eutopic and ectopic endometrial stroma cells were transiently transfected with miR-145 precursors or anti-miR-145 inhibitors and investigated for posttranscriptional regulation of predicted target genes and changes in cell behavior. MAIN OUTCOME MEASURE(S) Predicted target expression was measured by quantitative reverse transcription-polymerase chain reaction and Western blotting, and altered cell behavior was monitored by cell proliferation assays. The 12Z cells were additionally investigated by Matrigel invasion assays, cell cycle analysis, side population analysis, and aldehyde dehydrogenase activity assays. RESULT(S) In all cells investigated, miR-145 overexpression inhibited cell proliferation and induced down-regulation of FASCIN-1, SOX2, and MSI2. In 12Z cells miR-145 upregulation increased Matrigel invasiveness and reduced side population and aldehyde dehydrogenase-1 activity. Additional down-regulated targets in 12Z cells included OCT4, KLF4, PODXL, JAM-A, and SERPINE1/PAI-1. ACTG2 and TAGLN were up-regulated upon pre-miR-145 transfection. JAM-A, FASCIN-1, and PAI-I down-regulation in 12Z cells were confirmed by Western blotting. CONCLUSION(S) miR-145 inhibits endometriotic cell proliferation, invasiveness, and stemness by targeting multiple pluripotency factors, cytoskeletal elements, and protease inhibitors.
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Affiliation(s)
- Marlene Adammek
- Department of Gynecology and Obstetrics, Münster University Hospital, Münster, Germany
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Genetics: POP goes the smooth muscle contractile protein. Nat Rev Urol 2011; 8:650. [PMID: 22105317 DOI: 10.1038/nrurol.2011.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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