double-positive, alpha-beta thymocyte CD4-intermediate, CD8-positive double-positive thymocyte 2010-10-21T02:29:19Z A double-positive thymocyte that is undergoing positive selection, has high expression of the alpha-beta T cell receptor, is CD69-positive, and is in the process of down regulating the CD4 co-receptor. T_4int8+_Th T.4int8+.Th