Lamc3, encoding laminin γ3 chain, is involved in providing structural support and participating in cellular processes through protein-containing complex binding and signaling receptor binding. The proteins it interacts with are mainly located in the basement membrane and extracellular matrix component. The gene is potentially associated with pathways like extracellular matrix-receptor interaction and PI3K-Akt signaling pathway [1].

Recessive or complex heterozygous variants of the LAMC3 gene can cause occipital cortical malformation (OCCM), characterized by polymicrogyria and pachygyria of the occipital lobes and childhood-onset seizures. Functional experiments have confirmed that certain variant sites lead to premature truncation of the laminin γ3 chain [1]. In ovarian cancer, low expression of LAMC3 is related to poor prognosis and malignant progression, potentially through regulating oncogene-pathways such as Rap1, MAPK, Ras and cell adhesion-related pathways [2]. In zebrafish embryos, knockdown of Lamc3 impairs motoneuron guidance, indicating its role in this process [3].

In summary, Lamc3 is crucial for structural support and cellular processes, and its variants are associated with various diseases. Research on Lamc3, especially through functional studies like knockdown in zebrafish embryos, helps to understand its role in biological processes and disease mechanisms, such as in cortical malformations and ovarian cancer prognosis [1,2,3].