Laminin subunit alpha 4 (LAMA4),a member of the laminin family,is present in the intercellular matrix of adult tissues as a major component of basement membrane.LAMA4 is involved in the adhesion of cells and can bind to corresponding integrins to activate relevant signaling pathways,playing an essential role in the growth,proliferation,and migration of cells.It has been demonstrated that LAMA4 is associated with the occurrence and development of a variety of diseases including tumors,and the expression of LAMA4 can be used as a biomarker of tumor diagnosis and prognosis.This paper summarizes the current research progress in LAMA4 with the focus on the relationship between LAMA4 and diseases,especially tumor,with a view to provide new directions for the future research.
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http://dx.doi.org/10.3881/j.issn.1000.503X.14615 | DOI Listing |
Biochim Biophys Acta Mol Basis Dis
January 2025
Department of Radiation Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou City, Guangdong Province 510280, China. Electronic address:
Background: Oxaliplatin is the first-line chemotherapy for patients with colon cancer (CC). However, its resistance limits its therapeutic efficacy.
Methods: Oxaliplatin resistance-associated differentially expressed genes (DEGs) in the GSE42387 and GSE227315 datasets were identified through bioinformatics methods.
Medicine (Baltimore)
December 2024
Department of Cardiovascular Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Dilated cardiomyopathy (DCM) is characterized by ventricular dilation and poor systolic function. Approximately half of idiopathic DCM cases are assigned to genetic causes in familial or apparently sporadic cases, and more than 50 genes are reported to cause DCM. However, genetic basis of most DCM patients still keeps unknown and require further study.
View Article and Find Full Text PDFInfect Genet Evol
December 2024
2(nd) Propedeutic Department of Internal Medicine, Hippocration General Hospital, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
The recent discovery that the trimeric SARS-CoV-2 spike S glycoprotein carries heme within an NTD domain pocket of the S1 subunits, suggested that this virus may be cleverly utilizing heme, in addition to the S1 RBD domains, for invading target cells carrying a specific entry receptor like ACE2, TMEM106B and others. Studies during the COVID-19 pandemic revealed that the infectivity of this virus depends on cell surface heparan sulfate and that the infection induces non-canonical activation of the Complement Alternative pathway (AP) on the surface of infected cells. In our recent COVID-19 genomic studies, among the coding SNPs of interest we also detected the presence of the CFH rs1061170, rs800292 and rs1065489 within all the infected patient subgroups examined.
View Article and Find Full Text PDFMatrix Biol
February 2025
Department of Dermatology, Medical Center - University of Freiburg, Freiburg, Germany. Electronic address:
Integrin α6β4 subunits and type XVII collagen are critical transmembrane proteins involved in cell-matrix adhesion in skin, while laminin 332 serves as their ligand in the basement membrane zone (BMZ). Those proteins contribute to the composition of hemidesmosomes (HDs) and pathogenic variants in their corresponding genes cause junctional epidermolysis bullosa (JEB). Although the genotype-phenotype relationships in JEB have been extensively studied, the pathogenetic changes of extracellular matrix (ECM) and cell-matrix adhesion resulting from gene mutations remain unclear.
View Article and Find Full Text PDFAm J Physiol Cell Physiol
January 2025
Department of Anatomy, Faculty of Medicine, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
During development, tooth germs undergo various morphological changes resulting from interactions between the oral epithelium and ectomesenchyme. These processes are influenced by the extracellular matrix, the composition of which, along with cell adhesion and signaling, is regulated by metalloproteinases. Notably, these include matrix metalloproteinases (MMPs), a disintegrin and metalloproteinases (ADAMs), and a disintegrin and metalloproteinases with thrombospondin motifs (ADAMTSs).
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