| Structural highlights
Function
LEG3_HUMAN Galactose-specific lectin which binds IgE. May mediate with the alpha-3, beta-1 integrin the stimulation by CSPG4 of endothelial cells migration. Together with DMBT1, required for terminal differentiation of columnar epithelial cells during early embryogenesis (By similarity). In the nucleus: acts as a pre-mRNA splicing factor. Involved in acute inflammatory responses including neutrophil activation and adhesion, chemoattraction of monocytes macrophages, opsonization of apoptotic neutrophils, and activation of mast cells.[1] [2] [3]
Publication Abstract from PubMed
Galectin-3 (Gal-3), a beta-galactoside-binding lectin, is implicated in diverse cellular functions ranging from immune response modulation to tissue homeostasis. Notably, increased Gal-3 expression has been linked to the progression of numerous diseases, including cancer, fibrosis, and cardiovascular disorders, underscoring its potential as a therapeutic target. Small molecule inhibitors have been discovered and are valuable tools to study such diseases. We report here the discovery of novel, galactose-based, small molecule inhibitors such as compound 12 which are orally bioavailable and show efficacy in a mouse model of acute liver injury and fibrosis (CCl4 model). The use of structure-based drug design (docking of a virtual library of amides based on acid 2) was key in the process towards potent, nanomolar inhibitors.
, PMID:40071533[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Fukushi J, Makagiansar IT, Stallcup WB. NG2 proteoglycan promotes endothelial cell motility and angiogenesis via engagement of galectin-3 and alpha3beta1 integrin. Mol Biol Cell. 2004 Aug;15(8):3580-90. Epub 2004 Jun 4. PMID:15181153 doi:http://dx.doi.org/10.1091/mbc.E04-03-0236
- ↑ Henderson NC, Sethi T. The regulation of inflammation by galectin-3. Immunol Rev. 2009 Jul;230(1):160-71. doi: 10.1111/j.1600-065X.2009.00794.x. PMID:19594635 doi:10.1111/j.1600-065X.2009.00794.x
- ↑ Haudek KC, Spronk KJ, Voss PG, Patterson RJ, Wang JL, Arnoys EJ. Dynamics of galectin-3 in the nucleus and cytoplasm. Biochim Biophys Acta. 2010 Feb;1800(2):181-189. Epub 2009 Jul 16. PMID:19616076 doi:S0304-4165(09)00194-9
- ↑ Zumbrunn C, Remen L, Sager CP, Grisostomi C, Stamm C, Krüsi D, Glutz S, Schmidt G, Nayler O, Iglarz M, Mac Sweeney A, Chambovey A, Müller M, Mueller C, Hühn E, Cattaneo C, Vercauteren M, Gatfield J, Bolli MH, Meyer S, Bourquin G. Discovery of Galactopyranose-1-Carboxamides as a New Class of Small, Novel, Potent, Selective, and Orally Active Galectin-3 Inhibitors. ChemMedChem. 2025 Mar 12:e202401012. PMID:40071533 doi:10.1002/cmdc.202401012
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