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Castelucci BG, Consonni SR, Rosa VS, Joazeiro PP. Recruitment of monocytes and mature macrophages in mouse pubic symphysis relaxation during pregnancy and postpartum recovery†. Biol Reprod 2020; 101:466-477. [PMID: 31201427 PMCID: PMC6735965 DOI: 10.1093/biolre/ioz107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/03/2019] [Accepted: 06/13/2019] [Indexed: 12/12/2022] Open
Abstract
Appropriate remodeling of the female lower reproductive tract and pelvic floor is essential during normal mammalian pregnancy, labor, and postpartum recovery. During mouse pregnancy, in addition to reproductive tract modifications, the pubic symphysis (PS) is remodeled into a soft interpubic ligament (IpL) to provide safe delivery of the offspring and fast postpartum recovery. Although temporal changes in the phenotypes of myeloid cells, such as mononuclear phagocytes, are crucial to remodeling the lower reproductive tract organs in preparation for a safe delivery, little is known about the involvement of recruited monocytes or macrophages in mouse PS remodeling. We used combined light microscopy, electron microscopy, and qPCR analysis to investigate the profile of recruited monocytes and macrophage polarization markers in C57Bl6 mouse interpubic tissues during pregnancy (D12, D18, and D19) and early days postpartum (1 dpp and 3 dpp) to better identify their presence in proper remodeling of the mouse PS. Our morphological data show that the number of recruited monocytes is increased in interpubic tissues and that recruited monocytes differentiate into proinflammatory or anti-inflammatory macrophage phenotypes from D18 to 3 dpp, which may contribute to dynamic changes in the gene expression of specific inflammatory mediators involved in interpubic tissue remodeling at these time points. Therefore, our morphological and quantitative gene expression data suggest that both differentiated macrophages from recruited monocytes and polarized macrophages may collaborate for IpL relaxation at labor and the appropriate repair of the PS after the first pregnancy.
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Affiliation(s)
- Bianca G Castelucci
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Silvio R Consonni
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Viviane S Rosa
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Paulo P Joazeiro
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
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Castelucci BG, Pereira AHM, Fioramonte M, Carazzolle MF, de Oliveira PSL, Franchini KG, Kobarg J, Martins-de-Souza D, Joazeiro PP, Consonni SR. Evidence of macrophage modulation in the mouse pubic symphysis remodeling during the end of first pregnancy and postpartum. Sci Rep 2020; 10:12403. [PMID: 32709949 PMCID: PMC7381608 DOI: 10.1038/s41598-020-68676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/30/2020] [Indexed: 11/10/2022] Open
Abstract
In mouse pregnancy, pubic symphysis (PS) remodels into an elastic interpubic ligament (IpL) in a temporally regulated process to provide safe delivery. It restores at postpartum to assure reproductive tract homeostasis. Recently, macrophage localization in the IpL and dynamic changes in the expression of inflammatory mediators observed from the end of pregnancy (D18, D19) to early days postpartum (1dpp, 3dpp) highlighted the necessity of the identification of the key molecules involved in innate immune processes in PS remodeling. Therefore, this study uses morphological and high-sensitivity molecular techniques to identify both macrophage association with extracellular matrix (ECM) remodeling and the immunological processes involved in PS changes from D18 to 3dpp. Results showed macrophage association with active gelatinases and ECM components and 25 differentially expressed genes (DEGs) related to macrophage activities in interpubic tissues from D18 to 3dpp. Additionally, microarray and proteomic analysis showed a significant association of interpubic tissue DEGs with complement system activation and differentially expressed proteins (DEPs) with phagocytosis, highlighting the involvement of macrophage-related activities in mouse PS remodeling. Therefore, the findings suggest that PS ECM remodeling is associated with evidence of macrophage modulation that ensures both IpL relaxation and fast PS recovery postpartum for first labor.
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Affiliation(s)
- B G Castelucci
- Laboratory of Cytochemistry and Immunocytochemistry, Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - A H M Pereira
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - M Fioramonte
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - M F Carazzolle
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - P S L de Oliveira
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - K G Franchini
- Brazilian Biosciences National Laboratory, Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - J Kobarg
- School of Pharmaceutical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - D Martins-de-Souza
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
- Experimental Medicine Research Cluster (EMRC), State University of Campinas (UNICAMP), Campinas, Brazil
- D'Or Institute for Research and Education (IDOR), São Paulo, Brazil
| | - P P Joazeiro
- Laboratory of Cytochemistry and Immunocytochemistry, Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - S R Consonni
- Laboratory of Cytochemistry and Immunocytochemistry, Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil.
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Castelucci BG, Consonni SR, Rosa VS, Sensiate LA, Delatti PCR, Alvares LE, Joazeiro PP. Time-dependent regulation of morphological changes and cartilage differentiation markers in the mouse pubic symphysis during pregnancy and postpartum recovery. PLoS One 2018; 13:e0195304. [PMID: 29621303 PMCID: PMC5886480 DOI: 10.1371/journal.pone.0195304] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 03/20/2018] [Indexed: 02/02/2023] Open
Abstract
Animal models commonly serve as a bridge between in vitro experiments and clinical applications; however, few physiological processes in adult animals are sufficient to serve as proof-of-concept models for cartilage regeneration. Intriguingly, some rodents, such as young adult mice, undergo physiological connective tissue modifications to birth canal elements such as the pubic symphysis during pregnancy; therefore, we investigated whether the differential expression of cartilage differentiation markers is associated with cartilaginous tissue morphological modifications during these changes. Our results showed that osteochondral progenitor cells expressing Runx2, Sox9, Col2a1 and Dcx at the non-pregnant pubic symphysis proliferated and differentiated throughout pregnancy, giving rise to a complex osteoligamentous junction that attached the interpubic ligament to the pubic bones until labour occurred. After delivery, the recovery of pubic symphysis cartilaginous tissues was improved by the time-dependent expression of these chondrocytic lineage markers at the osteoligamentous junction. This process potentially recapitulates embryologic chondrocytic differentiation to successfully recover hyaline cartilaginous pads at 10 days postpartum. Therefore, we propose that this physiological phenomenon represents a proof-of-concept model for investigating the mechanisms involved in cartilage restoration in adult animals.
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Affiliation(s)
- Bianca Gazieri Castelucci
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
- * E-mail: (BGC); (SRC); (PPJ)
| | - Sílvio Roberto Consonni
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
- * E-mail: (BGC); (SRC); (PPJ)
| | - Viviane Souza Rosa
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Lucimara Aparecida Sensiate
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Paula Cristina Rugno Delatti
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Lúcia Elvira Alvares
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Paulo Pinto Joazeiro
- Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Brazil
- * E-mail: (BGC); (SRC); (PPJ)
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Geng J, Huang C, Jiang S. Roles and regulation of the matrix metalloproteinase system in parturition. Mol Reprod Dev 2016; 83:276-86. [PMID: 26888468 DOI: 10.1002/mrd.22626] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 02/10/2016] [Indexed: 12/23/2022]
Abstract
Significant tissue destruction, repair, and remodeling are involved in parturition, which involves fetal membrane rupture, cervical ripening, and uterine contraction and its subsequent involution. Extracellular matrix degradation and remodeling by proteolytic enzymes, such as matrix metalloproteinases (MMPs), are required for the final steps of parturition. MMPs participate in physiological degradation and remodeling through their proteolytic activities on specific substrates, and are balanced by the action of their inhibitors. Disruption to this balance can result in pathological stress that ends with preterm or post-term birth or pre-eclampsia. In this review, we examine the roles and regulation of the MMP system in physiological and pathological labor, and propose a model that illustrates the mechanisms by which the MMP system contributes to these processes.
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Affiliation(s)
- Junnan Geng
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Cong Huang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
| | - Siwen Jiang
- Key Laboratory of Swine Genetics and Breeding of Agricultural Ministry, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China.,The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
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Giardini-Rosa R, Joazeiro PP, Thomas K, Collavino K, Weber J, Waldman SD. Development of scaffold-free elastic cartilaginous constructs with structural similarities to auricular cartilage. Tissue Eng Part A 2014; 20:1012-26. [PMID: 24124666 DOI: 10.1089/ten.tea.2013.0159] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
External ear reconstruction with autologous cartilage still remains one of the most difficult problems in the fields of plastic and reconstructive surgery. As the absence of tissue vascularization limits the ability to stimulate new tissue growth, relatively few surgical approaches are currently available (alloplastic implants or sculpted autologous cartilage grafts) to repair or reconstruct the auricle (or pinna) as a result of traumatic loss or congenital absence (e.g., microtia). Alternatively, tissue engineering can offer the potential to grow autogenous cartilage suitable for implantation. While tissue-engineered auricle cartilage constructs can be created, a substantial number of cells are required to generate sufficient quantities of tissue for reconstruction. Similarly, as routine cell expansion can elicit negative effects on chondrocyte function, we have developed an approach to generate large-sized engineered auricle constructs (≥3 cm(2)) directly from a small population of donor cells (20,000-40,000 cells/construct). Using rabbit donor cells, the developed bioreactor-cultivated constructs adopted structural-like characteristics similar to native auricular cartilage, including the development of distinct cartilaginous and perichondrium-like regions. Both alterations in media composition and seeding density had profound effects on the formation of engineered elastic tissue constructs in terms of cellularity, extracellular matrix accumulation, and tissue structure. Higher seeding densities and media containing sodium bicarbonate produced tissue constructs that were closer to the native tissue in terms of structure and composition. Future studies will be aimed at improving the accumulation of specific tissue constituents and determining the clinical effectiveness of this approach using a reconstructive animal model.
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Affiliation(s)
- Renata Giardini-Rosa
- 1 Human Mobility Research Centre, Kingston General Hospital and Queen's University , Kingston, Canada
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Consonni SR, Werneck CC, Sobreira DR, Kühne F, Moraes SG, Alvares LE, Joazeiro PP. Elastic fiber assembly in the adult mouse pubic symphysis during pregnancy and postpartum. Biol Reprod 2012; 86:151, 1-10. [PMID: 22238283 DOI: 10.1095/biolreprod.111.095653] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Impairment of pelvic organ support has been described in mice with genetic modifications of the proteins involved in elastogenesis, such as lysyl oxidase-like 1 (LOXL1) and fibulin 5. During pregnancy, elastic fiber-enriched pelvic tissues are modified to allow safe delivery. In addition, the mouse pubic symphysis is remodeled in a hormone-controlled process that entails the modification of the fibrocartilage into an interpubic ligament (IpL) and the relaxation of this ligament. After first parturition, recovery occurs to ensure pelvic tissue homeostasis. Because ligaments are the main supports of the pelvic organs, this study aimed to evaluate elastogenesis in the IpL during mouse pregnancy and postpartum. Accordingly, virgin, pregnant, and postpartum C57BL/6 mice were studied using light, confocal, and transmission electron microscopy as well as Western blots and real-time PCR. Female mice exhibited the separation of the pubic bones and the formation, relaxation, and postpartum recovery of the IpL. By the time the IpL was formed, the elastic fibers had increased in profile length and diameter, and they consisted of small conglomerates of amorphous material distributed among the bundles of microfibrils. Our analyses also indicated that elastin/tropoelastin, fibrillin 1, LOXL1/Loxl1, and fibulin 5 were spatially and temporally regulated, suggesting that these molecules may contribute to the synthesis of new elastic fibers during IpL development. Overall, this work revealed that adult elastogenesis may be important to assure the elasticity of the pelvic girdle during preparation for parturition and postpartum recovery. This finding may contribute to our understanding of pathological processes involving elastogenesis in the reproductive tract.
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Affiliation(s)
- Sílvio Roberto Consonni
- Department of Histology and Embryology, State University of Campinas (Unicamp), Campinas, Brazil
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Rosa RG, Tarsitano CAB, Hyslop S, Yamada AT, Toledo OMS, Joazeiro PP. Temporal changes in matrix metalloproteinases, their inhibitors, and cathepsins in mouse pubic symphysis during pregnancy and postpartum. Reprod Sci 2012; 18:963-77. [PMID: 21960510 DOI: 10.1177/1933719111401657] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Remodeling and relaxation of the mouse pubic symphysis (PS) are central events in parturition. The involvement of endogenous proteins such as matrix metalloproteinases (MMPs), tissue inhibitors of matrix metalloproteinases (TIMPs), and cathepsins in these phenomena remains unclear. In this work, we used a combination of immunolocalization, protein expression/activity, and relative messenger RNA (mRNA) expression to examine the changes in selected MMPs (-2, -9, and -8), TIMPs (-1 and -2), and cathepsins (B and K) during pregnancy and postpartum in mice. Immunohistochemistry revealed the presence of all of these proteins in the cytoplasm of chondrocytes, fibrochondrocytes, and fibroblast-like cells in the interpubic tissues. Zymography showed increases in the active forms of MMP-2 and -9 primarily on days 15 to 19 of pregnancy. Western blotting showed enhanced expression of MMP-8 on days 12 to 15 of pregnancy, with no changes in cathepsins B and K. Matrix metalloproteinases 2, TIMP-1 and -2, and cathepsin B had significant relative gene expression throughout pregnancy. These findings indicate that during pregnancy and postpartum there are variations in the expression and activity of proteins that may have an important role in remodeling the pubic symphysis during these events.
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Affiliation(s)
- Renata G Rosa
- Department of Histology and Embryology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, SP, Brazil
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Rosa RG, Akgul Y, Joazeiro PP, Mahendroo M. Changes of large molecular weight hyaluronan and versican in the mouse pubic symphysis through pregnancy. Biol Reprod 2012; 86:44. [PMID: 22011392 PMCID: PMC3290668 DOI: 10.1095/biolreprod.111.093229] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 07/12/2011] [Accepted: 10/14/2011] [Indexed: 01/07/2023] Open
Abstract
During pregnancy, the mouse pubic symphysis undergoes expansion and remodeling resulting in formation of a flexible and elastic interpubic ligament allowing passage of a term fetus. In the current study, we sought to identify and characterize components of the extracellular matrix that likely play an important role in elongation and flexibility of the interpubic ligament during parturition. Mouse pubic symphyses and interpubic ligaments collected at time points during pregnancy and postpartum were utilized to evaluate collagen type, collagen content, processing and solubility, matricellular protein, and proteoglycan expression and quantitative assessment of all glycosaminoglycans. These studies revealed increased gene expression for hyaluronan synthase 1, hyaluronan synthase 2, and versican on Gestation Day 18 as well as a decline in protein expression for the versican-degrading protease a disintegrin-like and metalloprotease with thrombospondin type 1 (ADAMTS1) motif. These findings suggest that the primary mediators of increased elongation and flexibility of the interpubic ligament at term result from increased synthesis and reduced metabolism of viscoelasticity-promoting molecules such as high molecular weight hyaluronan and versican.
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Affiliation(s)
- Renata Giardini Rosa
- Department of Obstetrics and Gynecology and The Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas
- Department of Histology and Embryology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Yucel Akgul
- Department of Obstetrics and Gynecology and The Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Paulo Pinto Joazeiro
- Department of Histology and Embryology, Institute of Biology, State University of Campinas (UNICAMP), Campinas, Sao Paulo, Brazil
| | - Mala Mahendroo
- Department of Obstetrics and Gynecology and The Cecil H. and Ida Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, Texas
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Moro CF, Consonni SR, Rosa RG, Nascimento MAC, Joazeiro PP. High iNOS mRNA and protein localization during late pregnancy suggest a role for nitric oxide in mouse pubic symphysis relaxation. Mol Reprod Dev 2012; 79:272-82. [PMID: 22223460 DOI: 10.1002/mrd.22020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 12/13/2011] [Indexed: 11/10/2022]
Abstract
Remodeling and relaxation of the mouse pubic symphysis (PS) are central events in parturition. The mouse PS remodels in a hormone-controlled process that involves the modification of the fibrocartilage into an interpubic ligament (IpL), followed by its relaxation prior to parturition. It is recognized that nitric oxide synthase (NOS) and consequently nitric oxide (NO) generation play important roles in extracellular matrix modification, and may promote cytoskeleton changes that contribute to the remodeling of connective tissue, which precedes the onset of labor. To our knowledge, no studies thus far have investigated inducible nitric oxide synthase (iNOS) expression, protein localization, and NO generation in the mouse PS during pregnancy. In this work, we used a combination of the immunolocalization of iNOS, its relative mRNA expression, and NO production to examine the possible involvement of iNOS in remodeling and relaxation of the mouse IpL during late pregnancy. The presence of iNOS was observed in chondrocytes and fibroblast-like cells in the interpubic tissues. In addition, iNOS mRNA and NO production were higher during preterm labor on Day 19 of pregnancy (D19) than NO production on D18 or in virgin groups. The significant increase in iNOS mRNA expression and NO generation from the partially relaxed IpL at D18 to the completely relaxed IpL at D19 may indicate that NO plays an important role in late pregnancy during relaxation of the mouse IpL.
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Affiliation(s)
- Camila Fernandes Moro
- Department of Histology and Embryology, State University of Campinas (Unicamp), Campinas, SP, Brazil
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