Obiettivo A BETTER UNDERSTANDING OF THE RELATIONSHIP BETWEEN BIOLOGICAL AND BIOMECHANICAL PROPERTIES OF THE RECONSTRUCTED TISSUE COULD OPEN ALSO A NEW FIELD FOR EVALUATING TOXICOLOGICAL AND PHARMACOLOGICAL PROPERTIES. The model enabled the study of the regulation of cell density in a tissue, the influence of the substrate on attachment, proliferation and protein synthesis, and collagen and collagenase gene expression in fibroblasts at a transcriptional or pretranslational level. The dermal equivalent is a model for skin ageing, wound contraction and studies on pathological fibroblasts. The covering of the dermal equivalent by an epidermis leads to models of epidermal wound healing, pigmentation and epidermal ageing. In addition, dermal epidermal interactions can be investigated. This human living skin equivalent, in which cells communicate and differentiate as in vivo is a major tool for pharmacotoxicology. It enables the identification of the influence of cell cell, cell matrix and dermal epidermal interactions in response to pharmacological agents. A human dermal equivalent model has been developed by culturing cells in close contact with their physiological matrix molecules and with cell types usually adjacent in vivo.CELLS AND CONNECTIVE TISSUE COMPONENTS FROM THE SKIN CAN BE ISOLATED AND INVESTIGATED SEPARATELY IN DIFFERENT ORGAN AND CELL CULTURE.THE INDIVIDUAL CONSTITUENTS CAN ALSO BE USED TO RECONSTITUTE IN VITRO A SKIN EQUIVALENT.THE RECONSTITUTION OF AN ARTIFICIAL DERMIS REQUIRES TWO MAJOR COMPONENTS : FIBROBLASTS AND CONNECTIVE TISSUE MATRIX.IN THIS MODEL, THE DIFFERENTIATION OF FIBROBLASTS BECOME SIMILAR TO THE IN VIVO SITUATION AND QUITE DIFFERENT FROM FIBROBLASTS CULTIVATED AS MONOLAYERS, WHICH ARE USUALLY USED FOR PHARMACOLOGICAL OR TOXICOLOGICAL STUDIES. IT IS PROPOSED TO INVESTIGATE THE BASIC CELLULAR AND CELL MATRIX INTERCATIONS EXPRESSSED IN THIS MODEL, AS COMPARED WITH IN VIVO CONDITIONS AND OTHER IN VITRO CULTURE SYSTEMS, AND TO EVALUATE THE POTENTIALITY OF THIS MODEL FOR TOXICOLOGICAL AND PHARMACOLOGICAL STUDIES. Campo scientifico natural sciencesbiological sciencesbiochemistrybiomoleculesproteins Programma(i) FP1-BAP - Multiannual research action programme (EEC) in the field of biotechnology (BAP), 1985-1989 Argomento(i) Data not available Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore LUDWIG-MAXIMILIANS UNIVERSITY OF MUNICH Contributo UE Nessun dato Indirizzo Geschwister-Scholl-Platz 1 80539 MUENCHEN Germania Mostra sulla mappa Costo totale Nessun dato Partecipanti (4) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto Hôpital Henri Mondor Francia Contributo UE Nessun dato Indirizzo 94010 Créteil Mostra sulla mappa Costo totale Nessun dato St Thomas's Hospital Medical School Regno Unito Contributo UE Nessun dato Indirizzo Lambeth Palace Road London Mostra sulla mappa Costo totale Nessun dato UNIVERSITE DE LIEGE Belgio Contributo UE Nessun dato Indirizzo LAPIERE C M Mostra sulla mappa Costo totale Nessun dato University of Wales College of Medicine Regno Unito Contributo UE Nessun dato Indirizzo Heath Park CF4 4XN Cardiff Mostra sulla mappa Costo totale Nessun dato