Abstract: A method is described for detecting the presence of at least one trichophyton involved in a mycosis of the skin and skin apendages. The method can include a step of determining the presence, in a sample of skin or skin appendage from a human being or an animal that may be infected with a trichophyton, of at least one protease selected from dipeptidyl peptidase V, subtilisin-like protease 6, subtilisin-like protease 7, leucine aminopeptidase 1 and leucine aminopeptidase 2. Also described, is a monoclonal antibody directed against dipeptidyl peptidase V, subtilisin-like protease 6 or leucine aminopeptidase 2 or a fragment of this antibody capable of binding respectively to dipeptidyl peptidase V, subtilisin-like protease 6 or leucine aminopeptidase 2, and a kit including this antibody.

Abstract: A non-invasive method for collecting biological data useful for establishing a diagnosis or a prognosis of a particular cutaneous pathology in a patient, includes: a) obtaining a skin sample containing biological material by applying a layer of adhesive on the skin of such patient, and then removing the adhesive containing such skin sample/biological material, and b) conducting mass spectrometry and detecting, in the sample, at least one protein whose presence, absence, or variation in amount or concentration relative to a standard value is associated with the presence, the development or the absence of a particular cutaneous pathology; the subject methodology is particularly suitable for establishing a diagnosis or a prognosis of psoriasis.