Document Detail

Context-dependent multifunctionality of galectin-1: a challenge for defining the lectin as therapeutic target.
MedLine Citation:
PMID:  23289445     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: One route of translating the information encoded in the glycan chains of cellular glycoconjugates into physiological effects is via receptor (lectin) binding. A family of endogenous lectins, sharing folding, a distinct sequence signature and affinity for β-galactosides (thus termed galectins), does so effectively in a context-dependent manner.
AREAS COVERED: An overview is given on the multifunctional nature of galectins, with emphasis on galectin-1. The broad range of functions includes vital processes such as adhesion via glycan bridging, glycoconjugate transport or triggering signaling relevant, for example, for growth regulation. Besides distinct glycoconjugates, this lectin can also interact with certain proteins so that it can target counterreceptors at all sites of location, that is, in the cytoplasm and/or nucleus, at both sides of the membrane or extracellularly. Approaches to strategically exploit galectin activities with therapeutic intentions are outlined.
EXPERT OPINION: The wide versatility of sugar coding and the multifunctionality of galectin-1 explain why considering to turn the protein into a therapeutic target is an ambitious aim. Natural pathways shaped by physiologic master regulators (e.g., the tumor suppressor p16(INK4a)) are suggested to teach inspiring lessons as to how the lectin might be recruited to clinical service.
Karel Smetana; Sabine André; Herbert Kaltner; Jürgen Kopitz; Hans-Joachim Gabius
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2013-01-06
Journal Detail:
Title:  Expert opinion on therapeutic targets     Volume:  17     ISSN:  1744-7631     ISO Abbreviation:  Expert Opin. Ther. Targets     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-15     Completed Date:  2013-08-28     Revised Date:  2013-11-06    
Medline Journal Info:
Nlm Unique ID:  101127833     Medline TA:  Expert Opin Ther Targets     Country:  England    
Other Details:
Languages:  eng     Pagination:  379-92     Citation Subset:  IM    
Institute of Anatomy, 1st Faculty of Medicine, Charles University, U Nemocnice 3, 128 00 Prague, Czech Republic.
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MeSH Terms
Antineoplastic Agents / pharmacology,  therapeutic use
Biological Transport / drug effects
Cell Adhesion / drug effects
Cell Proliferation / drug effects
Drug Design*
Galectin 1 / antagonists & inhibitors,  metabolism*
Galectins / antagonists & inhibitors,  metabolism
Glycoconjugates / metabolism
Molecular Targeted Therapy
Neoplasm Proteins / antagonists & inhibitors,  metabolism
Neoplasms / drug therapy,  prevention & control
Signal Transduction / drug effects
Reg. No./Substance:
0/Antineoplastic Agents; 0/Galectin 1; 0/Galectins; 0/Glycoconjugates; 0/Neoplasm Proteins

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