A novel laminin polypeptide comprising the amino acid sequence set forth by SEQ ID NO:3 is disclosed. Also disclosed are compositions-of-matter comprising a polysaccharide (e.g., hyaluronic acid) and the novel laminin polypeptide； or hyaluronic acid, a laminin polypeptide and an antioxidant (e.g., superoxide dismutase), as well as matrices and hydrogels comprising same which can be used for ex vivo or in vivo tissue formation and for treatment of pathologies characterized by diseased, damaged or loss of tissue.
