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Wei Z, Zuo Y, Wu E, Huang L, Qian Y, Wang J, Chen Z. Highly biocompatible, antioxidant and antibacterial gelatin methacrylate/alginate - Tannin hydrogels for wound healing. Int J Biol Macromol 2024; 279:135417. [PMID: 39265900 DOI: 10.1016/j.ijbiomac.2024.135417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 08/29/2024] [Accepted: 09/05/2024] [Indexed: 09/14/2024]
Abstract
Gelatin (Gel) hydrogels are widely utilized in various aspects of tissue engineering, such as wound repair, due to their abundance and biocompatibility. However, their low strength and limited functionality have constrained their development and scope of application. Tannic acid (TA), a naturally occurring polyphenol found in plants and fruits, has recently garnered interest as a crosslinking, anti-inflammatory, and antioxidant agent. In this study, we fabricated novel multifunctional gelatin methacrylate/alginate-tannin (GelMA/Alg-TA) hydrogels using chemical and physical crosslinking strategies with gelatin methacrylate (GelMA), alginate (Alg), and TA as the base materials. The GelMA/Alg-TA hydrogels maintained a stable three-dimensional porous structure with appropriate water content and exhibited excellent biocompatibility. Additionally, these hydrogels demonstrated significant antioxidant and antibacterial properties and substantially promoted wound healing in a mouse model of full-thickness skin defects by modulating inflammatory responses and enhancing granulation formation. Therefore, our study offers valuable insights into the design principles of novel multifunctional GelMA/Alg-TA hydrogels, highlighting their exceptional biocompatibility, antioxidant, and antibacterial properties. GelMA/Alg-TA hydrogels are promising candidates for wound healing applications.
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Affiliation(s)
- Zongyi Wei
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yu Zuo
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Enguang Wu
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Lianghui Huang
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yu Qian
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Jin Wang
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
| | - Zhenhua Chen
- Jiangxi Province Key Laboratory of Drug Design and Evaluation, School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang 330013, China.
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Yang X, Zhang S, Chen K, Shen D, Yang Y, Shen A, Liang J, Xu M, Yang Y, Zhao Y, Li H, Tong X. Hypoxic Preconditioned ADSC Exosomes Enhance Vaginal Wound Healing via Accelerated Keratinocyte Proliferation and Migration Through AKT/HIF‑1α Axis Activation. Cell Mol Bioeng 2024; 17:295-303. [PMID: 39372552 PMCID: PMC11450125 DOI: 10.1007/s12195-024-00814-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 08/20/2024] [Indexed: 10/08/2024] Open
Abstract
Purpose Accelerating wound healing is a main consideration in surgery. The three stages of wound healing are inflammatory response, tissue repair and cell proliferation. Much research has focused on epidermal cell proliferation and migration because this is an essential step in wound healing. Methods and Results The current study discovered that exosomes from Adipose-derived stem cell (ADSC) following hypoxic preconditioning (HExo) have a greater promotional effect on vaginal wound healing. Protein kinase B (AKT)/hypoxia-inducible factor 1-alpha (HIF-1α) play an important role in HExo-mediated HaCaT cell migration and proliferation. The promotional effect of HExo on rat wound healing was reversed by both, HIF‑1α and AKT inhibition. Phosphorylation of AKT (p-AKT) or HIF‑1α suppression reversed the protective effect of HExo on vaginal wound healing. Conclusion Taken together, our study found that hypoxic preconditioning of adipose MSC exosomes enhances vaginal wound healing via accelerated keratinocyte proliferation and migration through AKT/HIF‑1α axis activation.
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Affiliation(s)
- Xiaoyun Yang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Shasha Zhang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Kewei Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Dongsheng Shen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Yang Yang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Aiqun Shen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Junhua Liang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Mengjiao Xu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Yuanyuan Yang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Yanhong Zhao
- Department of Anesthesiology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Huaifang Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
| | - Xiaowen Tong
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji University School of Medicine, No. 389 Xincun Road, Shanghai, 200065 People’s Republic of China
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Yılmaz YZ, Çakan D. Effect of Locally Administered Estradiol on Wound Healing in a Nasal Septal Perforation Animal Model. Facial Plast Surg 2024; 40:80-85. [PMID: 37044127 DOI: 10.1055/a-2072-5052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
We aimed to investigate the effect of estradiol on wound healing in an experimental nasal septal perforation (NSP) model created in rats. Twenty-two Sprague Dawley healthy male rats were separated into two groups. NSP, approximately 2 mm in diameter, was created in each animal. The 0.1 mL 0.12% estradiol (12 g/L) (study group) and 0.1 mL 0.9% saline (9 g/L) (control group) were applied topically once a day for 14 days. The rats were sacrificed on the 14th day and the cartilage nasal septum of each animal was excised for histopathological examination. The nasal mucosal epithelial regeneration and degeneration, acute inflammatory cell count, fibroblast number, vascularization, granulation tissue formation, giant cell number, eosinophil number, degeneration and regeneration of the nasal cartilage, and collagen density were examined. The macroscopic closure rate of the perforations and histopathological parameters were evaluated statistically. In this study, the epithelial regeneration, the fibroblast count, the granulation tissue formation, and the amount of collagen were significantly higher in the study group than in the saline group (p < 0.05). The acute inflammatory activity was lower in the estradiol group than in the saline group (p < 0.05). There was no statistically significant difference in the closure rate of perforation between the two groups (p = 0.163). No significant difference was found in other comparisons (p > 0.05). The locally administered estradiol may improve wound healing of the nasal septum in an experimental NSP animal model. LEVEL OF EVIDENCE: Not applicable.
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Affiliation(s)
- Yetkin Zeki Yılmaz
- Cerrahpasa Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Dogan Çakan
- Cerrahpasa Cerrahpasa Medical Faculty, Istanbul University, Istanbul, Turkey
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Zhang T, Lv H, Zhang Y, Yu L, Li Y, Yan H, He C, Zhao D, Zhao L, He Y, Wang Y, Zhu Z. Long-lasting anti-swelling sustained-release estradiol hydrogel for promoting vaginal wound healing. MATERIALS ADVANCES 2024; 5:5644-5657. [DOI: 10.1039/d4ma00173g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/16/2024]
Abstract
This study presents a mechanically robust and stable poly(hydroxyethyl methacrylate) (PHEMA)/alginate hydrogel loaded with estrogen. The hydrogel significantly promotes vaginal wound healing in a rat vaginal loss model.
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Affiliation(s)
- Tianyue Zhang
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Sichuan University, Ministry of Education, Chengdu, 610041, China
| | - Hongyi Lv
- College of Chemistry and Materials Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, 610068, China
| | - Yijing Zhang
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Sichuan University, Ministry of Education, Chengdu, 610041, China
| | - Lingyun Yu
- The People's Hospital of Wenjaing Chengdu, Chengdu, 611130, China
| | - Yonghong Li
- The People's Hospital of Wenjaing Chengdu, Chengdu, 611130, China
| | - Hechun Yan
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Sichuan University, Ministry of Education, Chengdu, 610041, China
| | - Chenyan He
- Sichuan Normal University, Chengdu, 610068, China
| | - Dongmei Zhao
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Lijuan Zhao
- College of Chemistry and Materials Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, 610068, China
| | - Yuedong He
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi Wang
- College of Chemistry and Materials Science, Key Laboratory of the Evaluation and Monitoring of Southwest Land Resources (Ministry of Education), Sichuan Normal University, Chengdu, 610068, China
| | - Zhongyi Zhu
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Sichuan University, Ministry of Education, Chengdu, 610041, China
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McCracken JM, Calderon GA, Kumar LA, Balaji S, Rivas F, Erxleben D, Hall A, Hakim JC. Unveiling Vaginal Fibrosis: A Novel Murine Model Using Bleomycin and Epithelial Disruption. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.18.572175. [PMID: 38187720 PMCID: PMC10769241 DOI: 10.1101/2023.12.18.572175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Objective Develop, validate, and characterize a fibrotic murine vaginal wound healing model using bleomycin instillations and epithelial disruption. Approach We tested the effect of repeated bleomycin instillations with mucosal layer disruption on induction of vaginal fibrosis. Tissue samples collected at various time points were analyzed for fibrosis-related gene expression changes and collagen content. Results Low (1.5U/kg) and high-dose (2.5U/kg) bleomycin instillations alone did not induce fibrosis, but when high-dose bleomycin was combined with epithelial disruption, increased pro-fibrotic gene expression and trichrome staining were observed. To evaluate spatial and temporal changes in the ECM structure and gene expression, tissue samples were collected at 1 day, 3 weeks, and 6 weeks after bleomycin and epithelial disruption. Data analyses revealed a significant decrease in matrix metabolizing genes and an increase in pro-fibrotic genes and inhibitors of matrix metabolizing genes in the bleomycin plus epithelial disruption group at 3 weeks. Elevated levels of the profibrotic genes Acta2 , Col1a1 , and Col3a were exclusively detected in this group at 3 weeks, and trichrome staining confirmed increased collagen content after 3 weeks. Hydroxyproline levels showed a tendency towards elevation at 3 weeks (p=0.12) and 6 weeks (p=0.14), indicating fibrosis manifestation at 3 weeks and resolution by 6 weeks post-instillation and epithelial disruption. Innovation We combined bleomycin instillations with epithelial disruption to induce fibrosis and understand the mechanisms of the vaginal repair process. Conclusions Epithelial disruption combined with bleomycin induces murine vaginal fibrosis within three weeks, characterized by increased collagen synthesis. Remarkably, the vaginal tissue fully recovers within six weeks, elucidating the regenerative capacity of the vagina.
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Ho T, Zhang J, Wen Y, Guo S, Dobberfuhl AD, Chen B. Long-term effects of vaginal surgery and endogenous ovarian hormones on the vagina and bladder. Sex Med 2023; 11:qfad063. [PMID: 38074491 PMCID: PMC10710297 DOI: 10.1093/sexmed/qfad063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 10/16/2023] [Accepted: 11/02/2023] [Indexed: 02/12/2024] Open
Abstract
Background Surgery is a common treatment for pelvic organ prolapse (POP); however, risk of recurrence and reoperation is high, resulting in a negative impact on quality of life and sexual function. Aim To examine the long-term effects of POP surgery and endogenous circulating ovarian hormones on the vagina and bladder. Methods Our animal model simulated surgical injury of the vagina and bladder during POP surgery. Female Rowett nude rats were divided into 4 groups: intact control (IC), vaginal surgery only (V), ovariectomy only (O), and ovariectomy + vaginal surgery (OV). Rats were euthanized 10 weeks postsurgery. Proximal vagina and bladder dome/trigone underwent (1) organ bath myography to assess smooth muscle contractility; (2) real-time quantitative polymerase chain reaction to quantify mRNA expression of elastin, collagen I and III, and PGP9.5 (protein gene product 9.5); (3) enzyme-linked immunosorbent assay for protein quantification of elastin and collagen I and III; and (4) hematoxylin-eosin/immunohistochemistry staining. Outcomes The primary outcome was tissue contractility as measured by organ bath myography. Secondary outcomes included gene and protein expression of collagen I and III and elastin. Results O and OV showed reduced vaginal wall contractility vs IC and V (P < .002). Bladder dome and trigone displayed different contractile patterns, with significant differences between O and OV (P < .05), suggesting a negative effect from surgery rather than ovariectomy. OV demonstrated consistent reductions in contractility and elastin/collagen protein expression for the vagina and bladder vs IC. V had similar contractility and increased collagen I expression vs IC, suggesting a protective effect of ovarian hormones. Vaginal epithelium thinning was confirmed in the ovariectomized groups (P = .001), although there was no statistical significance in muscularis thinning with surgery or ovariectomy. O, V, and OV showed significant downregulation of PGP9.5 mRNA expression vs IC. Clinical Translation These data allow researchers to gain insights into the long-term effects of surgery and deprivation of ovarian hormones. Future studies can use this animal model to investigate other mechanisms that may affect long-term tissue changes due to surgical intervention. Strengths and Limitations Major strengths are long-term data on the effects of POP surgery and development of an animal model for future studies. However, the animal model limits our ability to extrapolate to humans, where tissue healing is modulated by many factors. Conclusion Our animal model provides evidence that ovarian hormone deprivation and POP surgery result in negative long-term effects on tissue function and extracellular matrix.
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Affiliation(s)
- Tam Ho
- Department of Obstetrics and Gynecology, Stanford University, Palo Alto, CA 94304, United States
| | - Jerry Zhang
- Department of Obstetrics and Gynecology, Stanford University, Palo Alto, CA 94304, United States
| | - Yan Wen
- Department of Urology, Stanford University, Palo Alto, CA 94304, United States
| | - Song Guo
- Department of Obstetrics and Gynecology, Stanford University, Palo Alto, CA 94304, United States
| | | | - Bertha Chen
- Department of Obstetrics and Gynecology, Stanford University, Palo Alto, CA 94304, United States
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McCracken JM, Calderon GA, Le QN, Faruqui NM, Balaji S, Hakim JCE. Cellular and extracellular vaginal changes following murine ovarian removal. Physiol Rep 2023; 11:e15762. [PMID: 37549960 PMCID: PMC10406565 DOI: 10.14814/phy2.15762] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 08/09/2023] Open
Abstract
Loss of estrogen as a result of aging, pelvic cancer therapy, genetics, or eating disorders affects numerous body systems including the reproductive tract. Specifically, a chronic hypoestrogenic state fosters debilitating vaginal symptoms like atrophy, dryness, and dyspareunia. Current treatment options, including vaginal estrogen and hyaluronan (HA), anecdotally improve symptoms, but rectifying mechanisms are largely understudied. In order to study the hypoestrogenic vaginal environment, in particular the extracellular matrix (ECM), as well as understand the mechanisms behind current treatments and develop new therapies, we characterized a reliable and reproducible animal model. Bilateral ovariectomies (OVX) were performed on 9-week-old CD1 mice. After 1 month of estrogen loss due to ovarian removal, a phenotype that is similar to human vaginal tissue in an estrogen reduced state was noted in mice compared to sham-operated controls. The uterine to body weight ratio decreased by 80% and vaginal epithelium was significantly thinner in OVX compared to sham mice. Estrogen signaling was altered in OVX, but submucosal ERα localization did not reach statistical differences. HA localization in the submucosal area was altered and CD44 expression decreased in OVX mice. Collagen turn-over was altered following OVX. The inflammation profile was also disrupted, and submucosal vaginal CD45+ and F4/80+ cell populations were significantly reduced in the OVX mice. These results show altered cellular and molecular changes due to reduced estrogen levels. Developing new treatments for hypoestrogenic vaginal symptoms rely on better understanding of not only the cellular changes, but also the altered vaginal ECM environment. Further studies using this mouse model has the potential to advance women's vaginal health treatments and aid in understanding the interplay between organ systems in both healthy, aged, and diseased states.
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Affiliation(s)
- Jennifer M. McCracken
- Department of Obstetrics and GynecologyDivision of Pediatric and Adolescent GynecologyTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
| | - Gisele A. Calderon
- Department of Obstetrics and GynecologyDivision of Pediatric and Adolescent GynecologyTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
| | - Quynh N. Le
- Department of Obstetrics and GynecologyDivision of Pediatric and Adolescent GynecologyTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
| | - Natasha M. Faruqui
- Department of Obstetrics and GynecologyDivision of Pediatric and Adolescent GynecologyTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
| | - Swathi Balaji
- Department of SurgeryDivision of Pediatric SurgeryTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
| | - Julie C. E. Hakim
- Department of Obstetrics and GynecologyDivision of Pediatric and Adolescent GynecologyTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
- Department of SurgeryDivision of Pediatric SurgeryTexas Children's Hospital, Baylor College of MedicineHoustonTexasUSA
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Costa-Fujishima M, Yazdanpanah A, Horne S, Lamont A, Lopez P, Farr Zuend C, Birse K, Taverner M, Greenslade R, Abou M, Noel-Romas L, Abrenica B, Ajibola O, Ikeogu N, Su RC, McKinnon LR, Pymar H, Poliquin V, Berard AR, Burgener AD, Murooka TT. Nonoptimal bacteria species induce neutrophil-driven inflammation and barrier disruption in the female genital tract. Mucosal Immunol 2023; 16:341-356. [PMID: 37121385 DOI: 10.1016/j.mucimm.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/27/2023] [Accepted: 04/02/2023] [Indexed: 05/02/2023]
Abstract
Neutrophil recruitment and activation within the female genital tract are often associated with tissue inflammation, loss of vaginal epithelial barrier integrity, and increased risk for sexually transmitted infections, such as HIV-1. However, the direct role of neutrophils on vaginal epithelial barrier function during genital inflammation in vivo remains unclear. Using complementary proteome and immunological analyses, we show high neutrophil influx into the lower female genital tract in response to physiological surges in progesterone, stimulating distinct stromal, immunological, and metabolic signaling pathways. However, despite the release of extracellular matrix-modifying proteases and inflammatory mediators, neutrophils contributed little to physiological mucosal remodeling events such as epithelial shedding or re-epithelialization during transition from diestrus to estrus phase. In contrast, the presence of bacterial vaginosis-associated bacteria resulted in a rapid and sustained neutrophil recruitment, resulting in vaginal epithelial barrier leakage and decreased cell-cell junction protein expression in vivo. Thus, neutrophils are important mucosal sentinels that rapidly respond to various biological cues within the female genital tract, dictating the magnitude and duration of the ensuing inflammatory response at steady state and during disease processes.
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Affiliation(s)
- Marina Costa-Fujishima
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada
| | - Atta Yazdanpanah
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada
| | - Samantha Horne
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, USA; University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada
| | - Alana Lamont
- University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada; National HIV and Retrovirology Labs, JC Wilt Infectious Disease Research Centre, Public Health Agency of Canada, Winnipeg, Canada
| | - Paul Lopez
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada
| | - Christina Farr Zuend
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, USA
| | - Kenzie Birse
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, USA; University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada
| | - Morgan Taverner
- University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada
| | - Riley Greenslade
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada
| | - Max Abou
- National HIV and Retrovirology Labs, JC Wilt Infectious Disease Research Centre, Public Health Agency of Canada, Winnipeg, Canada
| | - Laura Noel-Romas
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, USA; University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada
| | - Bernard Abrenica
- National HIV and Retrovirology Labs, JC Wilt Infectious Disease Research Centre, Public Health Agency of Canada, Winnipeg, Canada
| | - Oluwaseun Ajibola
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada
| | - Nnamdi Ikeogu
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada
| | - Ruey-Chyi Su
- University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada; National HIV and Retrovirology Labs, JC Wilt Infectious Disease Research Centre, Public Health Agency of Canada, Winnipeg, Canada
| | - Lyle R McKinnon
- University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada; Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa; Department of Medical Microbiology and Immunology, University of Nairobi, Nairobi, Kenya
| | - Helen Pymar
- University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada
| | - Vanessa Poliquin
- University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada
| | - Alicia R Berard
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, USA; University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada
| | - Adam D Burgener
- Center for Global Health and Diseases, Department of Pathology, Case Western Reserve University, Cleveland, USA; University of Manitoba, Department of Obstetrics, Gynecology, and Reproductive Sciences, Winnipeg, Canada; Unit of Infectious Diseases, Department of Medicine Solna, Center for Molecular Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
| | - Thomas T Murooka
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, Canada; University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada.
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Shafaat S, Roman Regueros S, Chapple C, MacNeil S, Hearnden V. Estradiol-17β [E 2] stimulates wound healing in a 3D in vitro tissue-engineered vaginal wound model. J Tissue Eng 2023; 14:20417314221149207. [PMID: 36726532 PMCID: PMC9885031 DOI: 10.1177/20417314221149207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/15/2022] [Indexed: 02/03/2023] Open
Abstract
Childbirth contributes to common pelvic floor problems requiring reconstructive surgery in postmenopausal women. Our aim was to develop a tissue-engineered vaginal wound model to investigate wound healing and the contribution of estradiol to pelvic tissue repair. Partial thickness scalpel wounds were made in tissue models based on decellularized sheep vaginal matrices cultured with primary sheep vaginal epithelial cells and fibroblasts. Models were cultured at an airliquid interface (ALI) for 3 weeks with and without estradiol-17β [E2]. Results showed that E2 significantly increased wound healing and epithelial maturation. Also, E2 led to collagen reorganization after only 14 days with collagen fibers more regularly aligned and compactly arranged Additionally, E2 significantly downregulated α-SMA expression which is involved in fibrotic tissue formation. This model allows one to investigate multiple steps in vaginal wound healing and could be a useful tool in developing therapies for improved tissue healing after reconstructive pelvic floor surgery.
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Affiliation(s)
- Sarah Shafaat
- Department of Materials Science and
Engineering, Kroto Research Institute, University of Sheffield, Sheffield, UK
| | - Sabiniano Roman Regueros
- Department of Materials Science and
Engineering, Kroto Research Institute, University of Sheffield, Sheffield, UK
| | - Christopher Chapple
- Department of Urology, Royal
Hallamshire Hospital, Urology Clinic, Sheffield, UK
| | - Sheila MacNeil
- Department of Materials Science and
Engineering, Kroto Research Institute, University of Sheffield, Sheffield, UK,Sheila MacNeil, Department of Materials
Science and Engineering, Kroto Research Institute, University of Sheffield,
Broad Lane, Sheffield S5 &AU, UK.
| | - Vanessa Hearnden
- Department of Materials Science and
Engineering, Kroto Research Institute, University of Sheffield, Sheffield, UK
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Wang Y, Wang W, Zhou S, Wang Y, Cudjoe O, Cha Y, Wang C, Cao X, Liu W, Jin K. Poldip2 knockdown protects against lipopolysaccharide-induced acute lung injury via Nox4/Nrf2/NF-κB signaling pathway. Front Pharmacol 2022; 13:958916. [PMID: 36120334 PMCID: PMC9471427 DOI: 10.3389/fphar.2022.958916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/20/2022] [Indexed: 12/02/2022] Open
Abstract
Polymerase δ-interacting protein 2 (Poldip2) has been reported to mediate acute lung injury (ALI); however, the underlying mechanism is not fully explored. Male C57BL/6 mice and A549 cells were used to establish the lipopolysaccharide (LPS)-induced ALI model, then the expression of Poldip2 and its effect on oxidative stress and the resulting inflammation were detected. Adeno-associated virus serotype 6 (AAV6) mediated Poldip2 knockdown was transfected into mice via intratracheal atomization. And A549 cells stimulated with LPS was used to further confirm our hypothesis in vitro. ML385, specifically inhibited the activation of the Nrf2 signaling pathway. Our data suggested that LPS stimulation remarkably increased protein levels of Nox4 and p-P65, activities of NADPH and MPO, and generation of ROS, TNF-α, and IL-1β while decreased protein levels of Nrf2 and HO-1 compared with those in NC shRNA + Saline group, which were obviously reversed by Poldip2 knockdown. Concomitantly, Poldip2 knockdown dramatically reduced contents of MDA and enhanced activities of SOD and GSH-Px compared to NC shRNA + LPS group. In vitro, we found that knockdown of Poldip2 significantly reversed LPS-induced increase protein levels of Nox4 and p-P65, activity of NADPH, and generation of ROS, TNF-α, and IL-1β, and decrease protein levels of Nrf2 and HO-1, ML385 pretreatment reversed the effects of Poldip2 knockdown mentioned above. Our study indicated that Poldip2 knockdown alleviates LPS-induced ALI via inhibiting Nox4/Nrf2/NF-κB signaling pathway.
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Affiliation(s)
- Yueguo Wang
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wenwen Wang
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- Graduate School of Bengbu Medical College, Bengbu, China
| | - Shusheng Zhou
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yulan Wang
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Obed Cudjoe
- Department of Microbiology and Immunology, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Yu Cha
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chunyan Wang
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiaoguang Cao
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wei Liu
- Department of Respiratory Disease, Anhui Provincial Chest Hospital, Hefei, China
| | - Kui Jin
- Department of Emergency Medicine, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
- *Correspondence: Kui Jin,
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11
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Dolivo D, Rodrigues A, Galiano R, Hong SJ, Mustoe T. Letter to the Editor regarding "Olfactomedin 4 regulates migration and proliferation of immortalized non-transformed keratinocytes through modulation of the cell cycle machinery and actin cytoskeleton remodeling". Exp Cell Res 2022; 416:113151. [PMID: 35421366 DOI: 10.1016/j.yexcr.2022.113151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/03/2022] [Accepted: 04/05/2022] [Indexed: 11/16/2022]
Affiliation(s)
- David Dolivo
- Department of Surgery-Northwestern University the Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Adrian Rodrigues
- Department of Surgery-Northwestern University the Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Robert Galiano
- Department of Surgery-Northwestern University the Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Seok Jong Hong
- Department of Surgery-Northwestern University the Feinberg School of Medicine, Chicago, IL, 60611, USA.
| | - Thomas Mustoe
- Department of Surgery-Northwestern University the Feinberg School of Medicine, Chicago, IL, 60611, USA
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12
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Plesniarski A, Siddik AB, Su RC. The Microbiome as a Key Regulator of Female Genital Tract Barrier Function. Front Cell Infect Microbiol 2022; 11:790627. [PMID: 34976864 PMCID: PMC8719631 DOI: 10.3389/fcimb.2021.790627] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
The microbiome, the collection of microbial species at a site or compartment, has been an underappreciated realm of human health up until the last decade. Mounting evidence suggests the microbiome has a critical role in regulating the female genital tract (FGT) mucosa's function as a barrier against sexually transmitted infections (STIs) and pathogens. In this review, we provide the most recent experimental systems and studies for analyzing the interplay between the microbiome and host cells and soluble factors with an influence on barrier function. Key components, such as microbial diversity, soluble factors secreted by host and microbe, as well as host immune system, all contribute to both the physical and immunologic aspects of the FGT mucosal barrier. Current gaps in what is known about the effects of the microbiome on FGT mucosal barrier function are compared and contrasted with the literature of the gut and respiratory mucosa. This review article presents evidence supporting that the vaginal microbiome, directly and indirectly, contributes to how well the FGT protects against infection.
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Affiliation(s)
- Andrew Plesniarski
- JC Wilt Infectious Diseases Research Centre, National Microbiology Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Abu Bakar Siddik
- JC Wilt Infectious Diseases Research Centre, National Microbiology Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Ruey-Chyi Su
- JC Wilt Infectious Diseases Research Centre, National Microbiology Laboratories, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
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