Abstract: Disclosed is a method to recover a dendritic cell rich mixture from peripheral blood mononuclear cells (PBMC) mobilized with one or more cell adhesion inhibitors (CAI) for the preparation of a dendritic cell vaccine. The CAI derived dendritic cell rich mixture (CdDC) from PBMC can either be used alone or better still, be induced into dendritic vaccine specific preparations with the addition or modification with different antigens and methodologies of immunological induction methods known to the art. These CAI derived dendritic vaccines can then be used, but not exclusively so, in the treatment of cancer and infectious diseases. In order to achieve the best immature and mature dendritic cell rich mixture, peripheral blood cells mobilization may be achieved by administering, simultaneously or in sequence, to an individual one or more of a combination of different chemical compounds, hormones, growth factors etc. prior to PBMC collection with one or more of cell adhesion inhibitors such as a CXCR4 antagonist.