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Silva JR, Souza-Fabjan JMG, Bento TFM, Silva RC, Moura CRF, Bartlewski PM, Batista RITP. The effects of heat stress on intrauterine development, reproductive function, and ovarian gene expression of F1 female mice as well as gene expression of F2 embryos†. Biol Reprod 2024; 110:33-47. [PMID: 37812452 DOI: 10.1093/biolre/ioad133] [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: 05/12/2023] [Revised: 08/30/2023] [Accepted: 10/01/2023] [Indexed: 10/10/2023] Open
Abstract
Exposure to heat stress (HS) in utero was postulated to trigger an adaptive molecular response that can be transmitted to the next generation. Hence, this study assessed the impact of HS exposure at different stages of the gestational period of mice on the female F1 population and their offspring. Heat stress exposure (41°C and 65% relative humidity-RH) occurred during the first half (FP), the second half (SP), or the entire pregnancy (TP). A control group (C) was maintained in normothermic conditions (25°C, 45% RH) throughout the experiment. Heat stress had a significant negative effect on intrauterine development, mainly when HS exposure occurred in the first half of pregnancy (FP and TP groups). Postnatal growth of FP and TP mice was hindered until 4 weeks of age. The total number of follicles per ovary did not vary (P > 0.05) between the control and HS-exposed groups. Mean numbers of primordial follicles were lower (P < 0.05) in the sexually mature FP than those in SP and TP F1 females. However, the mean number of viable embryos after superovulation was lower (P < 0.05) in TP compared with C group. The expression of genes associated with physiological and cellular response to HS, autophagy, and apoptosis was significantly affected in the ovarian tissue of F1 females and F2 in vivo-derived blastocysts in all HS-exposed groups. In conclusion, exposure to HS during pregnancy compromised somatic development and reproductive parameters as well as altered gene expression profile that was then transmitted to the next generation of mice.
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Affiliation(s)
- José R Silva
- Programa de Pós-Graduação em Ciência e Biotecnologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Joanna M G Souza-Fabjan
- Programa de Pós-Graduação em Ciência e Biotecnologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Tays F M Bento
- Programa de Pós-Graduação em Ciência e Biotecnologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Robson Campos Silva
- Departamento de Ciências Básicas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil
| | - Cristiane R F Moura
- Departamento de Ciências Básicas, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, MG, Brazil
| | - Pawel M Bartlewski
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Ribrio I T P Batista
- Programa de Pós-Graduação em Ciência e Biotecnologia, Universidade Federal Fluminense, Niterói, RJ, Brazil
- Faculdade de Veterinária, Universidade Federal Fluminense, Niterói, RJ, Brazil
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2
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Maranduca MA, Cosovanu MA, Clim A, Pinzariu AC, Filip N, Drochioi IC, Vlasceanu VI, Timofte DV, Nemteanu R, Plesa A, Pertea M, Serban IL. The Renin-Angiotensin System: The Challenge behind Autoimmune Dermatological Diseases. Diagnostics (Basel) 2023; 13:3398. [PMID: 37998534 PMCID: PMC10670244 DOI: 10.3390/diagnostics13223398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023] Open
Abstract
Autoimmune dermatological diseases (AIDD) encompass a diverse group of disorders characterized by aberrant immune responses targeting the skin and its associated structures. In recent years, emerging evidence suggests a potential involvement of the renin-angiotensin system (RAS) in the pathogenesis and progression of these conditions. RAS is a multicomponent cascade, primarily known for its role in regulating blood pressure and fluid balance. All of the RAS components play an important role in controlling inflammation and other immune responses. Angiotensin II, the main effector, acts on two essential receptors: Angiotensin Receptor 1 and 2 (AT1R and AT2R). A disturbance in the axis can lead to many pathological processes, including autoimmune (AI) diseases. AT1R activation triggers diverse signaling cascades involved in inflammation, fibrosis and tissue remodeling. Experimental studies have demonstrated the presence of AT1R in various cutaneous cells and immune cells, further emphasizing its potential contribution to the AI processes in the skin. Furthermore, recent investigations have highlighted the role of other RAS components, beyond angiotensin-converting enzyme (ACE) and Ang II, that may contribute to the pathophysiology of AIDD. Alternative pathways involving ACE2, Ang receptors and Ang-(1-7) have been implicated in regulating immune responses and tissue homeostasis within the skin microenvironment. Understanding the intricate involvement of the RAS in AIDD may provide novel therapeutic opportunities. Targeting specific components of the RAS, such as angiotensin receptor blockers (ARBs), ACE inhibitors (ACEIs) or alternative RAS pathway modulators, could potentially ameliorate inflammatory responses, reduce tissue damage and lessen disease manifestations. Further research is warranted to outline the exact mechanisms underlying RAS-mediated immune dysregulation in AIDD. This abstract aims to provide a concise overview of the intricate interplay between the RAS and AIDD. Therefore, we elaborate a systematic review of the potential challenge of RAS in the AIDD, including psoriasis, systemic sclerosis, vitiligo, lupus erythematosus and many more.
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Affiliation(s)
- Minela Aida Maranduca
- Discipline of Physiology, Department of Morpho-Functional Sciences II, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, 700115 Iasi, Romania
| | - Mihai Andrei Cosovanu
- Discipline of Physiology, Department of Morpho-Functional Sciences II, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Andreea Clim
- Discipline of Physiology, Department of Morpho-Functional Sciences II, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Alin Constantin Pinzariu
- Discipline of Physiology, Department of Morpho-Functional Sciences II, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Nina Filip
- Discipline of Biochemistry, Department of Morpho-Functional Sciences II, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Ilie Cristian Drochioi
- Department of Oral and Maxillofacial Surgery and Reconstructive, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700020 Iasi, Romania
| | - Vlad Ionut Vlasceanu
- Discipline of Surgical Semiology, Department of Surgery I, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Daniel Vasile Timofte
- Discipline of Surgical Semiology, Department of Surgery I, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Roxana Nemteanu
- Medical I Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Institute of Gastroenterology and Hepatology, “St. Spiridon” University Hospital, 700111 Iasi, Romania
| | - Alina Plesa
- Medical I Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Institute of Gastroenterology and Hepatology, “St. Spiridon” University Hospital, 700111 Iasi, Romania
| | - Mihaela Pertea
- Department of Plastic Surgery and Reconstructive Microsurgery, “Sf. Spiridon” Emergency County Hospital, 700111 Iasi, Romania
| | - Ionela Lacramioara Serban
- Discipline of Physiology, Department of Morpho-Functional Sciences II, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
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3
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Macchi R, Sotelo AD, Parrado AC, Salaverry LS, Blanco GA, Castro MS, Rey-Roldán EB, Canellada AM. Losartan impairs HTR-8/SVneo trophoblast migration through inhibition of angiotensin II-induced pro-inflammatory profile in human endometrial stromal cells. Toxicol Appl Pharmacol 2023; 461:116383. [PMID: 36682589 DOI: 10.1016/j.taap.2023.116383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/29/2022] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
A deep interaction between the endometrium and the invading trophoblast occurs during implantation in humans, with the acquisition of uterine receptivity to the invading embryo promoted by an elevation of pro-inflammatory cytokines in the endometrium, and the invasiveness of decidualizing endometrial stromal cells, augmented by trophoblast-derived signals. Considering that usage of angiotensin II type 1 (AT1) receptor blockers, among other renin-angiotensin system (RAS) antagonists, is associated with adverse pregnancy outcomes, here we aim to analyse the involvement of AT1 receptor in the reciprocal dialogue occurring between endometrial stroma and trophoblast cells. In human endometrial stromal cells (T-HESC) pre-incubated with a decidualization cocktail, angiotensin (Ang) II increased protein expression of prolactin and FOXO1, markers of endometrial decidualization, while promoting nuclear translocation of FOXO1. In addition, Ang II treatment increased CXCL8, and matrix metalloprotease (MMP)-2 levels in T-HESC. Incubation with the AT1 receptor blocker losartan or with an NFAT signalling inhibitor, decreased Ang II-induced secretion of prolactin, CXCL8, and MMP-2 in T-HESC. In a wound healing assay, conditioned medium (CM) obtained from Ang II-treated T-HESC, but not CM from losartan-pre-incubated T-HESC, increased migration of HTR-8/SVneo trophoblasts, effect that was inhibited in the presence of a CXCL8-neutralizing antibody. An increased secretion of CXCL8 and MMP-2 was observed after treatment of T-HESC with CM obtained from HTR-8/SVneo cells, which was not observed in T-HESC pre-incubated with losartan or with the NFAT inhibitor. This study evidenced a reciprocal RAS-coded messaging between trophoblast and ESC which is affected by the AT1 receptor blocker losartan.
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Affiliation(s)
- Rosario Macchi
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Agustina D Sotelo
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Andrea C Parrado
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Luciana S Salaverry
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Guillermo A Blanco
- Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Marisa S Castro
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Estela B Rey-Roldán
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina
| | - Andrea M Canellada
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Microbiología, Inmunología, Biotecnología y Genética, Cátedra de Inmunología, Junín 956, Buenos Aires C1113AAD, Argentina; Universidad de Buenos Aires, CONICET, Instituto de Estudios de la Inmunidad Humoral "Prof. Dr. Ricardo A. Margni", Junín 956, Buenos Aires C1113AAD, Argentina.
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Csekes E, Račková L. Skin Aging, Cellular Senescence and Natural Polyphenols. Int J Mol Sci 2021; 22:12641. [PMID: 34884444 PMCID: PMC8657738 DOI: 10.3390/ijms222312641] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/13/2021] [Accepted: 11/18/2021] [Indexed: 01/10/2023] Open
Abstract
The skin, being the barrier organ of the body, is constitutively exposed to various stimuli impacting its morphology and function. Senescent cells have been found to accumulate with age and may contribute to age-related skin changes and pathologies. Natural polyphenols exert many health benefits, including ameliorative effects on skin aging. By affecting molecular pathways of senescence, polyphenols are able to prevent or delay the senescence formation and, consequently, avoid or ameliorate aging and age-associated pathologies of the skin. This review aims to provide an overview of the current state of knowledge in skin aging and cellular senescence, and to summarize the recent in vitro studies related to the anti-senescent mechanisms of natural polyphenols carried out on keratinocytes, melanocytes and fibroblasts. Aged skin in the context of the COVID-19 pandemic will be also discussed.
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Affiliation(s)
- Erika Csekes
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dúbravská Cesta 9, 841 04 Bratislava, Slovakia
| | - Lucia Račková
- Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dúbravská Cesta 9, 841 04 Bratislava, Slovakia
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5
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Munavalli GG, Knutsen-Larson S, Lupo MP, Geronemus RG. Oral angiotensin-converting enzyme inhibitors for treatment of delayed inflammatory reaction to dermal hyaluronic acid fillers following COVID-19 vaccination-a model for inhibition of angiotensin II-induced cutaneous inflammation. JAAD Case Rep 2021; 10:63-68. [PMID: 33681439 PMCID: PMC7923909 DOI: 10.1016/j.jdcr.2021.02.018] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Girish Gilly Munavalli
- Dermatology, Laser and Vein Specialists of the Carolinas, Charlotte, North Carolina.,Department of Dermatology, the Wake Forest School of Medicine, Winston-Salem, North Carolina
| | | | - Mary P Lupo
- Lupo Center for Aesthetic and General Dermatology, New Orleans, Louisiana
| | - Roy G Geronemus
- Laser and Skin Surgery Center of New York, New York, New York
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6
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Ziaja M, Urbanek KA, Kowalska K, Piastowska-Ciesielska AW. Angiotensin II and Angiotensin Receptors 1 and 2-Multifunctional System in Cells Biology, What Do We Know? Cells 2021; 10:cells10020381. [PMID: 33673178 PMCID: PMC7917773 DOI: 10.3390/cells10020381] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/13/2022] Open
Abstract
For years, the renin-angiotensin system (RAS) has been perceived as a system whose role is to primarily modulate the functioning of the cardiovascular system. Years of research into the role of RAS have provided the necessary data to confirm that the role of RAS is very complex and not limited to the cardiovascular system. The presence of individual elements of the renin-angiotensin (RA) system allows to control many processes, ranging from the memorization to pro-cancer processes. Maintaining the proportions between the individual axes of the RA system allows for achieving a balance, often called homeostasis. Thus, any disturbance in the expression or activity of individual RAS elements leads to pathophysiological processes.
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7
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Salamanna F, Maglio M, Landini MP, Fini M. Body Localization of ACE-2: On the Trail of the Keyhole of SARS-CoV-2. Front Med (Lausanne) 2020; 7:594495. [PMID: 33344479 PMCID: PMC7744810 DOI: 10.3389/fmed.2020.594495] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/16/2020] [Indexed: 01/08/2023] Open
Abstract
The explosion of the new coronavirus (SARS-CoV-2) pandemic has brought the role of the angiotensin converting enzyme 2 (ACE2) back into the scientific limelight. Since SARS-CoV-2 must bind the ACE2 for entering the host cells in humans, its expression and body localization are critical to track the potential target organ of this infection and to outline disease progression and clinical outcomes. Here, we mapped the physiological body distribution, expression, and activities of ACE2 and discussed its potential correlations and mutal interactions with the disparate symptoms present in SARS-CoV-2 patients at the level of different organs. We highlighted that despite during SARS-CoV-2 infection ACE2-expressing organs may become direct targets, leading to severe pathological manifestations, and subsequent multiple organ failures, the exact mechanism and the potential interactions through which ACE2 acts in these organs is still heavily debated. Further scientific efforts, also considering a personalized approach aimed to consider specific patient differences in the mutual interactions ACE2-SARS-CoV-2 and the long-term health effects associated with COVID-19 are currently mandatory.
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Affiliation(s)
- Francesca Salamanna
- Surgical Sciences and Technologies, Istituto di Ricovero e Cura a Carattere Scientifico Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Melania Maglio
- Surgical Sciences and Technologies, Istituto di Ricovero e Cura a Carattere Scientifico Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Maria Paola Landini
- Scientific Direction, Istituto di Ricovero e Cura a Carattere Scientifico Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Milena Fini
- Surgical Sciences and Technologies, Istituto di Ricovero e Cura a Carattere Scientifico Istituto Ortopedico Rizzoli, Bologna, Italy
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Zhao Q, Fang X, Pang Z, Zhang B, Liu H, Zhang F. COVID-19 and cutaneous manifestations: a systematic review. J Eur Acad Dermatol Venereol 2020; 34:2505-2510. [PMID: 32594572 PMCID: PMC7361780 DOI: 10.1111/jdv.16778] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/08/2020] [Indexed: 01/08/2023]
Abstract
The cutaneous manifestations of COVID‐19 patients have been increasingly reported, but not summarized, and the potential mechanisms remain to be investigated. Herein, we performed a comprehensive review of literatures (from inception to 30 May 2020) using PubMed, CNKI, medRxiv and bioRxiv with the terms “((novel coronavirus) OR (2019 novel coronavirus) OR (2019‐nCoV) OR (Coronavirus disease 2019) OR (COVID‐19) OR (SARS‐CoV‐2)) AND ((Dermatology) OR (skin) OR (rash) OR (cutaneous))” and “((ACE2) OR (Angiotensin‐converting enzyme)) AND ((skin) OR (epidermis) OR (dermis)).” Totally, 44 articles met the inclusion criteria. A total of 507 patients with cutaneous manifestations were summarized, and 96.25% patients were from Europe. The average age of the patients was 49.03 (range: 5–91) with a female ratio of 60.44%. The skin lesions were polymorphic, and erythema, chilblain‐like and urticarial lesions were most common, occurring on an average of 9.92 days (range: 1–30) after the onset of systemic symptoms. The receptor of SARS‐CoV‐2, ACE2, was found to be expressed on skin, mainly on keratinocytes. Our review systematically presented the clinical characteristics of 507 patients and showed that skin might be the potential target of the infection according to ACE2 expression. More work should be done to better understand the underlying pathogenesis.
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Affiliation(s)
- Qing Zhao
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Xiaokai Fang
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Zheng Pang
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Bowen Zhang
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Hong Liu
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Furen Zhang
- Shandong Provincial Hospital for Skin Diseases & Shandong Provincial Institute of Dermatology and Venereology, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
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Li Z, Li S, Li K, Jiang X, Zhang J, Liu H. A highly simulated scar model developed by grafting human thin split-thickness skin on back of nude mouse: The remodeling process, histological characteristics of scars. Biochem Biophys Res Commun 2020; 526:744-750. [PMID: 32265030 DOI: 10.1016/j.bbrc.2020.03.140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/17/2020] [Indexed: 12/17/2022]
Abstract
A predictive scar animal model is needed in order to study the mechanism and assess the therapies before its use in humans. However, due to the differences in wound healing patterns and regeneration ability, none of the existing models can fully simulate the characteristics of human scar. The aim of this study was to build a model that recapitulated the developing process and outcomes of human hypertrophic scar (HS). Nude mice were grafted with thin split-thickness human skins. The dynamic changes and final outcomes of the grafts were investigated. The results showed that human skin grafts survived and underwent progressive scarring remodeling in morphology and histology. Scar related markers (α-SMA, CD34, Collage I, TGF-β1) were positive in immunohistology. Protein expressions in TGF-β1/Smad2/3 pathway were increased in accordance with HS during the development process by western blotting. It was finally proved that scar reconstructed by this model matches a real-world human HS. This is a stable, easy to reproduce model for studying the scar formation process and its properties.
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Affiliation(s)
- Zehua Li
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong, China
| | - Shenghong Li
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Kecheng Li
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Xiao Jiang
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Jinrong Zhang
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong, China
| | - Hongwei Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China.
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