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Troncoso MF, Ferragut F, Bacigalupo ML, Cárdenas Delgado VM, Nugnes LG, Gentilini L, Laderach D, Wolfenstein-Todel C, Compagno D, Rabinovich GA, Elola MT. Galectin-8: a matricellular lectin with key roles in angiogenesis. Glycobiology 2014; 24:907-14. [PMID: 24939370 DOI: 10.1093/glycob/cwu054] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Galectin-8 (gal-8) is a "tandem-repeat"-type galectin, containing two carbohydrate recognition domains connected by a linker peptide. gal-8 is expressed both in the cytoplasm and nucleus in vascular endothelial cells (ECs) from normal and tumor-associated blood vessels, and in lymphatic endothelial cells. Herein, we describe a novel role for gal-8 in the regulation of vascular and lymphatic angiogenesis and provide evidence of its critical implications in tumor biology. Functional assays revealed central roles for gal-8 in the control of capillary-tube formation, EC migration and in vivo angiogenesis. So far, two endothelial ligands have been described for gal-8, namely podoplanin in lymphatic vessels and CD166 (ALCAM, activated leukocyte cell adhesion molecule) in vascular ECs. Other related gal-8 functions are also summarized here, including cell adhesion and migration, which collectively demonstrate the multi-functionality of this complex lectin. Thus, gal-8 is an important component of the angiogenesis network, and an essential molecule in the extracellular matrix by providing molecular anchoring to this surrounding matrix. The implications of gal-8 in tumor angiogenesis remain to be further explored, but it is exciting to speculate that modulating gal-8-glycan interactions could be used to block lymphatic-vascular connections vital for metastasis.
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Affiliation(s)
- María F Troncoso
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
| | - Fátima Ferragut
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
| | - María L Bacigalupo
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
| | - Víctor M Cárdenas Delgado
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
| | - Lorena G Nugnes
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
| | - Lucas Gentilini
- Laboratorio de Glicómica Funcional, IQUIBICEN-CONICET, Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Diego Laderach
- Laboratorio de Glicómica Funcional, IQUIBICEN-CONICET, Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Carlota Wolfenstein-Todel
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
| | - Daniel Compagno
- Laboratorio de Glicómica Funcional, IQUIBICEN-CONICET, Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Gabriel A Rabinovich
- Laboratorio de Glicómica Funcional, IQUIBICEN-CONICET, Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina Laboratorio de Inmunopatología, Instituto de Biología y Medicina Experimental (IBYME - CONICET), Buenos Aires, Argentina
| | - María T Elola
- Instituto de Química y Fisicoquímica Biológicas Prof. Dr. Alejandro Paladini (UBA-CONICET), Facultad de Farmacia y Bioquímica
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Elola MT, Ferragut F, Cárdenas Delgado VM, Nugnes LG, Gentilini L, Laderach D, Troncoso MF, Compagno D, Wolfenstein-Todel C, Rabinovich GA. Expression, localization and function of galectin-8, a tandem-repeat lectin, in human tumors. Histol Histopathol 2014; 29:1093-105. [PMID: 24696431 DOI: 10.14670/hh-29.1093] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Galectin-8 (Gal-8) is a 'tandem-repeat'-type galectin, which possesses two carbohydrate recognition domains connected by a linker peptide. Gal-8 complexity is related to the alternative splicing of its mRNA precursor, which is known to generate isoforms. Regarding its carbohydrate-binding specificity, Gal-8 has a unique feature among galectins, since its C-terminal domain has higher affinity for N-glycan-type branched oligosaccharides, while its N-terminal domain shows strong affinity for α2-3-sialylated or 3'-sulfated β-galactosides. We integrate here the available information on Gal-8 expression in different tumor types and attempt to elucidate associations of its expression and localization with tumor progression with the overarching goal of analyzing its potential applications in diagnosis and prognosis. Differential diagnosis is still a prime concern in tumor pathology, and Gal-8 could be of great value in some types of primary or secondary tumors (i.e. papillary thyroid carcinoma, advanced colon carcinoma from patients with distant metastases, or metastases from primary lung carcinoma). The prognostic value of Gal-8 has been described for laryngeal carcinoma as well as advanced colon carcinoma. Further studies are needed to explain the relevance of Gal-8 and its isoforms in tumor pathology and their different intra- or extracellular roles (cytoplasmic, nuclear or extracellular) in tumor biology.
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Affiliation(s)
- María T Elola
- Institute of Biochemistry and Biophysics (IQUIFIB), UBA-CONICET, Department of Biological Chemistry, School of Pharmacy and Biochemistry. University of Buenos Aires, Buenos Aires, Argentina.
| | - Fátima Ferragut
- Institute of Biochemistry and Biophysics (IQUIFIB), UBA-CONICET, Department of Biological Chemistry, School of Pharmacy and Biochemistry. University of Buenos Aires, Buenos Aires, Argentina
| | - Víctor M Cárdenas Delgado
- Institute of Biochemistry and Biophysics (IQUIFIB), UBA-CONICET, Department of Biological Chemistry, School of Pharmacy and Biochemistry. University of Buenos Aires, Buenos Aires, Argentina
| | - Lorena G Nugnes
- Institute of Biochemistry and Biophysics (IQUIFIB), UBA-CONICET, Department of Biological Chemistry, School of Pharmacy and Biochemistry. University of Buenos Aires, Buenos Aires, Argentina
| | - Lucas Gentilini
- Laboratory of Functional Glycomics, IQUIBICEN, CONICET, Department of Biological Chemistry, School of Exact and Natural Sciences. University of Buenos Aires. Buenos Aires, Argentina
| | - Diego Laderach
- Laboratory of Functional Glycomics, IQUIBICEN, CONICET, Department of Biological Chemistry, School of Exact and Natural Sciences. University of Buenos Aires. Buenos Aires, Argentina
| | - María F Troncoso
- Institute of Biochemistry and Biophysics (IQUIFIB), UBA-CONICET, Department of Biological Chemistry, School of Pharmacy and Biochemistry. University of Buenos Aires, Buenos Aires, Argentina
| | - Daniel Compagno
- Laboratory of Functional Glycomics, IQUIBICEN, CONICET, Department of Biological Chemistry, School of Exact and Natural Sciences. University of Buenos Aires, Buenos Aires, Argentina
| | - Carlota Wolfenstein-Todel
- Institute of Biochemistry and Biophysics (IQUIFIB), UBA-CONICET, Department of Biological Chemistry, School of Pharmacy and Biochemistry. University of Buenos Aires, Buenos Aires, Argentina
| | - Gabriel A Rabinovich
- Laboratory of Functional Glycomics, IQUIBICEN, CONICET, Department of Biological Chemistry, School of Exact and Natural Sciences. University of Buenos Aires, and Laboratory of Immunopathology, Institute of Experimental Biology and Medicine (IBYME), CONICET, Buenos Aires, Argentina
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Delgado VMC, Nugnes LG, Colombo LL, Troncoso MF, Fernández MM, Malchiodi EL, Frahm I, Croci DO, Compagno D, Rabinovich GA, Wolfenstein‐Todel C, Elola MT. Modulation of endothelial cell migration and angiogenesis: a novel function for the “tandem‐repeat” lectin galectin‐8. FASEB J 2010; 25:242-54. [DOI: 10.1096/fj.09-144907] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Lorena G. Nugnes
- Instituto de Química y Fisicoquímica BiológicasBuenos AiresArgentina
| | - Lucas L. Colombo
- Área de InvestigaciónInstituto de Oncología A. H. RoffoBuenos AiresArgentina
| | - María F. Troncoso
- Instituto de Química y Fisicoquímica BiológicasBuenos AiresArgentina
| | - Marisa M. Fernández
- Cátedra de InmunologíaInstituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. MargniUniversidad de Buenos Aires, Consejo Nacional de Investigaciones Cientificas y Tecnicas (UBA–CONICET)Facultad de Farmacia y BioquímicaBuenos AiresArgentina
| | - Emilio L. Malchiodi
- Cátedra de InmunologíaInstituto de Estudios de la Inmunidad Humoral Prof. Ricardo A. MargniUniversidad de Buenos Aires, Consejo Nacional de Investigaciones Cientificas y Tecnicas (UBA–CONICET)Facultad de Farmacia y BioquímicaBuenos AiresArgentina
| | - Isabel Frahm
- Departamento de PatologíaSanatorio Mater DeiBuenos AiresArgentina
| | - Diego O. Croci
- Laboratorio de InmunopatologíaInstituto de Biología y Medicina Experimental (IBYME‐CONICET)Buenos AiresArgentina
| | - Daniel Compagno
- Laboratorio de Modulación Genética e InmunologíaDepartamento de Química BiológicaFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
| | - Gabriel A. Rabinovich
- Laboratorio de Modulación Genética e InmunologíaDepartamento de Química BiológicaFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Laboratorio de InmunopatologíaInstituto de Biología y Medicina Experimental (IBYME‐CONICET)Buenos AiresArgentina
| | | | - María T. Elola
- Instituto de Química y Fisicoquímica BiológicasBuenos AiresArgentina
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