UTILISATION DE LIGAND ETIQUETE AYANT UNE SPECIFICITE POUR LA MOLECULE CD4 HUMAINE AFIN DE PRODUIRE UN AGENT DIAGNOSTIC D'ANALYSE DES MOTIFS DE MIGRATION OU DE DISTRIBUTION DES POPULATIONS CELLULAIRES
The invention concerns the use of a labelled ligand having specificity for thehumanCD4 molecule to produce a diagnostic agent for analysing migration and/ordistribution patterns of certain cell populations which comprise CD4-bearingcells inhuman individuals.In addition the invention concerns a composition which comprises a labelledligandhaving specificity for the CD4 molecule and CD4-bearing cells or particles,and amethod for determining the extent and progression of diseases in which humanCD4-bearing cells are of clinical importance.