The present invention relates to novel family of homologous cell attachment chimeric peptides. In particular, the present invention relates to chimeric peptides, each comprising synthetic peptides comprising (a) an M-tide comprising an amino acid sequence that is at least 80% homologous to the amino acid sequence selected from the group consisting of: SEQ ID NO:1, 2 and 37 and (b) a core haptide comprising an amino acid sequence homologous to amino acid sequences at the carboxy termini of the and E chains of fibrinogen or other proteins comprising C-termini that are homologous to said fibrinogen sequences, wherein the M-tide and the core haptide originate from the same protein. The synthetic peptides are linked to one another thereby providing the chimeric peptides of the invention which does not occur in the native protein as a continuous sequence. The present invention further discloses pharmaceutical compositions comprising said chimeric peptides and uses thereof.