Browsing by Author "Döger, Remziye"

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    Determinants of differential functions of galectin-8 on T cells and tumoral cells : interplay of galectin-8 isoforms, integrin and growth factor signaling pathways.
    (2014) Döger, Remziye; González de la Rosa, Alfonso; Pontificia Universidad Católica de Chile. Facultad de Ciencias Biológicas
    Galectins are a subfamily of lectins involved in a variety of cellular processes mainly related with the immune system and cancer. Galectins are secreted through unconventional mechanisms, because they lack a signal peptide, and their carbohydrate recognition domains (CRD) bind to N-acetyllactosamine residues present on cell surface N- and O-glycoconjugates. Each of the 15 galectin family members can have redundant as well as particular functions depending on the structural organization of their CRDs, which is classified in three major groups: Monomeric chimera-type design (Gal-3); Homodimeric prototype (Gal-1, -2, -5, -7, -10, -11, -13, and -15); Tandem-repeat type with two different CRDs connected by a linker peptide (Gal-4, -6, -8, -9 and -12). The function of each particular member can also vary in different cellular contexts through mechanisms still not well understood, but likely dependent on differential subsets of glycoproteins and signaling pathways engaged. Therefore, understanding the role of a particular galectin requires to define the determinants of its variable functions in different cellular contexts.