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Costa-Silva M, Calistru A, Sobrinho-Simões J, Lisboa C, Azevedo F. Pitiryasis Lichenoides et Varioliformis Aacuta Associated With Human Herpesvirus 7. Actas Dermosifiliogr (Engl Ed) 2017; 109:e6-e10. [PMID: 29221609 DOI: 10.1016/j.ad.2017.03.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 02/24/2017] [Accepted: 03/10/2017] [Indexed: 01/17/2023] Open
Abstract
Pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica represent 2 ends of a disease spectrum of unknown etiology. Herein we describe 2 cases of pityriasis lichenoides et varioliformis acuta, in which human herpesvirus 7 DNA was detected in skin samples by polymerase chain reaction methodology, an association not previously described. This report may support the involvement of viral infection in the etiopathogeny of this disease.
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Affiliation(s)
- M Costa-Silva
- Unidad de Dermatología y Venereología, Centro Hospitalario São João, EPE, Oporto, Portugal.
| | - A Calistru
- Unidad de Dermatología y Venereología, Centro Hospitalario São João, EPE, Oporto, Portugal
| | - J Sobrinho-Simões
- Unidad de Patología Clínica, Centro Hospitalarrio de S.João, EPE, Oporto, Portugal
| | - C Lisboa
- Unidad de Dermatología y Venereología, Centro Hospitalario São João, EPE, Oporto, Portugal; Unidad de Microbiología, Facultad de Medicina, Universidad de Oporto, Oporto, Portugal
| | - F Azevedo
- Unidad de Dermatología y Venereología, Centro Hospitalario São João, EPE, Oporto, Portugal
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Theodoridis K, Tudorache I, Cebotari S, Calistru A, Meyer T, Sarikouch S, Bara C, Haverich A, Hilfiker A. Six-Year-Old Sheep as a Clinically Relevant Large Animal Model for Aortic Valve Replacement Using Tissue-Engineered Grafts Based on Decellularized Allogenic Matrix. Tissue Eng Part C Methods 2017; 23:953-963. [DOI: 10.1089/ten.tec.2017.0163] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Karolina Theodoridis
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Igor Tudorache
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Serghei Cebotari
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Alexandru Calistru
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Tanja Meyer
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Samir Sarikouch
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Christoph Bara
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Axel Haverich
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Andres Hilfiker
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
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Pedrosa AF, Bonito-Vítor A, Calistru A, Guimarães S, Azevedo F, Mota A. Disseminated papular lesions as a unique manifestation heralding bacille Calmette-Guérin infection in a patient with T-B+NK− severe combined immunodeficiency. Clin Exp Dermatol 2017; 42:693-695. [DOI: 10.1111/ced.13159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2016] [Indexed: 11/29/2022]
Affiliation(s)
- A. F. Pedrosa
- Department of Dermatology and Venereology; Centro Hospitalar São João EPE; Porto Portugal
- Department of Pediatrics; Centro Hospitalar São João EPE; Porto Portugal
| | - A. Bonito-Vítor
- Department of Pediatrics; Centro Hospitalar São João EPE; Porto Portugal
- Department of Pathology; Centro Hospitalar São João EPE; Porto Portugal
| | - A. Calistru
- Department of Dermatology and Venereology; Centro Hospitalar São João EPE; Porto Portugal
| | - S. Guimarães
- Faculty of Medicine; University of Porto; Portugal
| | - F. Azevedo
- Department of Dermatology and Venereology; Centro Hospitalar São João EPE; Porto Portugal
| | - A. Mota
- Department of Dermatology and Venereology; Centro Hospitalar São João EPE; Porto Portugal
- Department of Pediatrics; Centro Hospitalar São João EPE; Porto Portugal
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Theodoridis K, Tudorache I, Calistru A, Cebotari S, Meyer T, Sarikouch S, Bara C, Brehm R, Haverich A, Hilfiker A. Successful matrix guided tissue regeneration of decellularized pulmonary heart valve allografts in elderly sheep. Biomaterials 2015; 52:221-8. [PMID: 25818428 DOI: 10.1016/j.biomaterials.2015.02.023] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/25/2015] [Accepted: 02/01/2015] [Indexed: 11/25/2022]
Abstract
In vivo repopulation of decellularized allografts with recipient cells leads to a positive remodeling of the graft matrix in juvenile sheep. In light of the increasing number of heart valve replacements among older patients (>65 years), this study focused on the potential for matrix-guided tissue regeneration in elderly sheep. Pulmonary valve replacement was performed in seven-year old sheep using decellularized (DV), decellularized and CCN1-coated (RV), or decellularized and in vitro reendothelialized pulmonary allografts (REV) (n=6, each group). CCN1 coating was applied to support re-endothelialization. In vitro re-endothelialization was conducted with endothelial-like cells derived from peripheral blood. Echocardiograms of all grafts showed adequate graft function after implantation and at explantation 3 or 6 months later. All explants were macroscopically free of thrombi at explantation, and revealed repopulation of the allografts on the adventitial side of valvular walls and proximal in the cusps. Engrafted cells expressed vimentin, sm α-actin, and myosin heavy chain 2, while luminal cell lining was positive for vWF and eNOS. Cellular repopulation of valvular matrix demonstrates the capacity for matrix-guided regeneration even in elderly sheep but is not improved by in vitro endothelialization, confirming the suitability of decellularized matrix for heart valve replacement in older individuals.
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Affiliation(s)
- Karolina Theodoridis
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Igor Tudorache
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Alexandru Calistru
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Serghei Cebotari
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Tanja Meyer
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Samir Sarikouch
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Christoph Bara
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Ralph Brehm
- Institute of Anatomy, University of Veterinary Medicine Hannover, Germany
| | - Axel Haverich
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany
| | - Andres Hilfiker
- Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany; Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Germany.
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Baraki H, Tudorache I, Cebotari S, Calistru A, Braun M, Haverich A, Hilfiker A. Decellularized versus tissue engineered aortic valve conduits: comparison of short-term results in sheep model. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1246780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Calistru A, Meyer T, Braun M, Tudorache I, Cebotari S, Richter B, Haverich A, Hilfiker A. Aortic valve tissue engineering using progenitor cells in dynamic bioreactor: construction and mechanical testing. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1246650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Calistru A, Tudorache I, Tudorache G, Cebotari S, Haverich A, Hilfiker A. EPC derived endothelial cells serve for re-endothelialization of ovine decellularized pulmonary valves in vitro. Thorac Cardiovasc Surg 2009. [DOI: 10.1055/s-0029-1191477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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