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Binding to cells via a high affinity receptor, laminin is thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components.
Gene References into Functions
High LAMA4 expression is associated with gastric cancer. PMID: 30015861
Disruption of LAMA4, LAMA5, and LAMB2 or the laminin-receptor interaction occurs in neuromuscular diseases including Pierson syndrome and Lambert-Eaton myasthenic syndrome (LEMS). (Review) PMID: 27614294
highlight MCAM and LAMA4 as prime candidates for RCC prognosis and therapeutic targeting PMID: 26921326
LAMA4-integrin signalling affects chondrocyte morphology and gene expression, contributing to cluster formation in osteoarthritic chondrocytes. PMID: 26295200
LAMA4 expression is lowered in preeclamptic placentas and promotes trophoblast cell invasion, migration, and angiogenesis. hypoxia-reoxygenation decreases LAMA4 expression and decouple the relationship between LAMA4 expression and p38 and ERK activation. PMID: 26059342
Oxidative stress plays a vital role in controlling expression of LAMA4 through MAPK signaling pathways, which suggests a possible pathological mechanism of pre-eclampsia. PMID: 25676580
Laminins 411 and 421 differentially promote tumor cell migration via alpha6beta1 integrin and MCAM (CD146). PMID: 24951930
Data from experiment with peptide fragments suggest laminin alpha4 (and laminin alpha5) may be part of host defense response and may protect tissues from invading pathogens. PMID: 20433883
Laminins with alpha1, alpha4, and alpha5 chains are compared to determine laminin isoform-specific promotion of adhesion and migration of human bone marrow progenitor cells. PMID: 12393739
Data report the identification of a splice variant of the human laminin alpha4 subunit transcript containing 21 extra nucleotides. PMID: 12445830
The G domain of laminin alpha4 chain is a specific, high affinity ligand for alphavbeta3 & alpha3beta1 integrin heterodimers. These integrins, with alpha6beta1, cooperatively mediate endothelial cell-alpha4 laminin interaction & blood vessel development. PMID: 12454288
laminin alpha4 LG4 module may play an important role in cell adhesion and/or vessel wall formation in the skin by interacting with syndecan-2 and/or -4. PMID: 15086543
laminin isoform changes are associated with brain tumor invasion and angiogenesis [review] PMID: 16146715
This suggests that G(1121-1139) peptide-containing proteins may perform their biological functions by interacting with alphavbeta3 integrin. PMID: 16824487
alpha4 chain Lms have a de-adhesive function and could thus play a role in detachment, migration and invasion of renal carcinoma cells in vivo. PMID: 17533363
2 novel mutations (2828C>T [Pro943Leu] & 3217C>T [Arg1073X]) in the integrin-interacting domain of the LAMA4 gene reduce its integrin binding, & cause endothelial cell loss and heart failure. PMID: 17646580
LAMA4 is specifically up-regulated on both mRNA and protein levels in hepatocelluar carcinoma; potential role in hepatocarcinogenesis and tumor progression. PMID: 18084776
Concomitant changes take place in laminin- and collagen-binding receptors. Laminin-411 reduces adhesion to laminin-511 and fibronectin, suggesting that tumor cells could utilize laminin-411 in their invasive behavior PMID: 18496706
LM alpha4 and beta2 have roles in in vitro migration and in vivo tumorigenicity of prostate cancer cells PMID: 19048114
In adult, strong expression in heart, lung, ovary small and large intestines, placenta, liver; weak or no expression in skeletal muscle, kidney, pancreas, testis, prostate, brain. High expression in fetal lung and kidney. Expression in fetal and newborn t