Scholarship 19/24530-5 - Engenharia tecidual, Células endoteliais - BV FAPESP
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Bioengineering microvascular network in led light-dermo-epidermal skin model

Grant number: 19/24530-5
Support Opportunities:Scholarships abroad - Research Internship - Post-doctor
Start date until: May 30, 2020
End date until: May 29, 2021
Field of knowledge:Health Sciences - Pharmacy
Principal Investigator:Antonio Claudio Tedesco
Grantee:Carla Souza
Supervisor: Mercedes Balcells-Camps
Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
Institution abroad: Harvard-MIT Program in Health Sciences and Technology (HST) , United States  
Associated to the scholarship:17/01272-5 - In vitro reconstituted skin models: development, damage assessment and photoprotective efficacy in the UVA and visible spectral ranges, BP.PD

Abstract

The development of increasingly biomimetic human tissue analogs has been a long-standing goal in two important biomedical applications: drug discovery and regenerative medicine. In seeking to understand the safety and effectiveness of newly developed pharmacological therapies and replacement tissues for severely injured non-regenerating tissues and organs, there remains a tremendous unmet need in generating tissues with both functional complexity and scale. In this study, we propose to simultaneously apply LED visible-light source associated with photosensitizers to activate fibroblast (HDFs)-endothelial (HDECs) 3D co-cultured system in order to obtain a vascularized dermis tissue engineering model. Them, human dermal keratinocytes (HDKs) will be cultivated on the vascularized dermis equivalent to obtain a full skin model. Structure, morphology and function of micro-vessels will be evaluated by histology, immunofluorescence and protein expression. Finally, the biocompatibility of the vascularized skin substitutes with physiological, structural, and functional properties will be evaluated by in vivo subcutaneous implantation. Thus, we believe that the proposed equivalent tissue may represent an effective precursor of a new class of skin substitute of clinical interest and contribute to the understanding of skin graft vascularization and advancement of basic research in this field, especially that one has been started in our Research Group (CNET). (AU)

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