Mapping the sialic acid-binding sites of LuIII and H-1 parvovirus.

ABSTRACT: Oncolytic protoparvoviruses, including LuIII, H-1 parvovirus (H-1PV), and the prototypic strain of minute virus of mice (MVMp), can target and destroy cancer cells. Host cell targeting is based largely on the identification and interaction of the virus with the primary receptor. Previously, it has been shown that MVMp and H-1PV bind to sialic acid (SIA), which is the primary glycan receptor. This study investigates whether LuIII also utilizes a similar glycan for host cell attachment. Microarray analysis confirmed that α2-3-linked SIA is a shared receptor requirement for cell binding for all three viruses. Three glycans were identified in the array, namely, Neu5Acα2-3Galβ1-4GlcNAcβ1-3Galβ1-4GlcNAc, Neu5Acα2-3Galβ1-4GlcNAcβ1-3Galβ1-4GlcNAcβ1-3Galβ1-4GlcNAc, and Neu5Acα2-3Galβ1-4(Fucα1-3)-Gl

SUBMITTER: Busuttil K 

PROVIDER: S-EPMC12363179 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature