galectin-3

Ligand id: 6619

Name: galectin-3

Species: Human

Classification
Compound class Endogenous peptide in human, mouse or rat
Ligand families/groups Galectins
Synonyms
galectin 3 | GALIG | LGALS2 | MAC-2
Comments
Galectin 3 9Gal-3) is one of a group of 14 lectins that bind β-galactoside-containing carbohydrates, via a carbohydrate recognition domain (CRD), and it binds to galectin-3 binding protein. It plays regulatory functions in multiple biological processes, including cell-cell adhesion, cell-matrix interactions, macrophage activation, leukocyte migration, inflammation, angiogenesis, metastasis, apoptosis [5] and fibrosis. Galectin 3 is being investigated as a molecular target for the development of novel therapeutics for cancer [8-9], cardiovascular disease [2,4] and fibrosis (e.g. liver fibrosis in nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) [10]) [3]. GM-MD-02 (Galectin Therapeutics) is a galactoarabino-rhamnogalacturonan polysaccharide polymer (pectin) that binds to Gal-3 (Kd 8 μM: Gal-1 Kd 10 μM)) and reduces inflammation and fibrosis-associated effects in experimental models [1], but no clinical efficacy was observed in Phase 2 evaluation in patients with NASH cirrhosis (NCT02462967), although in the subset of patients with cirrhosis who had no esophageal varices some clinical benefit has been indicated, and Phase 3 testing in this subset of cirrhosis patients is planned.
In relation to cardiovascular disease, galectin 3/galectin 3 binding protein complexes co-localize to the leukocyte/endothelial cell interface of vein walls in mice and galectin 3 increases vein wall IL-6 levels and promotes venous thrombosis [4]. In human patients, elevated circulating galectin-3 binding protein correlates with acute venous thrombosis.
Gene/Precursor
Gene symbol Gene name Species Precursor protein name Synonyms
LGALS3 galectin 3 Human galectin-3 lectin, galactoside-binding, soluble, 3
Database Links
Ensembl Gene ENSG00000131981 (Hs)
GtoPdb PubChem SID 178103232
Human Protein Atlas ENSG00000131981 (Hs)
UniProtKB P17931 (Hs)
Wikipedia Galectin-3