The invention relates to cell stimulatory fusion proteins and DNA sequences, vectors comprising at least two agonists of TNF/TNFR super family, immunoglobulin super family, cytokine family proteins and optional antigen combination. Instructions for use of these proteins and DNA constructs as immune adjuvants and vaccines for treatment of various chronic diseases such as viral infection are also provided. Additionally, the use of these protein and DNA constructs as immune suppressant for treatment of various chronic diseases, such as autoimmunity and organ transplant rejection, is also illustrated.