LAMA1 is also known as laminin subunit α1. Laminins are a family of glycoproteins found in the extracellular matrix that comprises the basement membrane. Laminins have a heterotrimeric structure composed of an α, β, and γ chain. Numerous biological processes are known to be directed by them, including cell adhesion, mitogenesis, differentiation, and metastasis, all of which contribute to carcinogenesis. Tissue distribution of LAMA1 occurred mainly in early epithelial development and some adult epithelia. Recent reports have shown that laminin-1 acts as an efficient attachment protein for a large variety of cultured cell types in vitro. (PMID: 36824663)