title: LFA-1 on leukemic cells as a target for therapy or drug delivery.
abstract: Leukemia therapeutics are aiming for improved efficacy by targeting molecular markers differentially expressed on cancerous cells. Lymphocyte function-associated antigen-1 (LFA-1) expression on various types of leukemia has been well studied. Here, the role and expression of LFA-1 on leukemic cells and the possibility of using this integrin as a target for drug delivery is reviewed. To support this rationale, experimental results were also included where cIBR, a cyclic peptide derived from a binding site of LFA-1, was conjugated to the surface of polymeric nanoparticles and used as a targeting ligand. These studies revealed a correlation of LFA-1 expression level on leukemic cell lines and binding and internalization of cIBR-NPs suggesting a differential binding and internalization of cIBR-NPs to leukemic cells overexpressing LFA-1. Nanoparticles conjugated with a cyclic peptide against an accessible molecular marker of disease hold promise as a selective drug delivery system for leukemia treatment.
authors.affiliation: Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand.
authors.forename: Rungsinee
authors.initials: R
authors.lastname: Phongpradist
authors.forename: Chuda
authors.initials: C
authors.lastname: Chittasupho
authors.forename: Siriporn
authors.initials: S
authors.lastname: Okonogi
authors.forename: Teruna
authors.initials: T
authors.lastname: Siahaan
authors.forename: Songyot
authors.initials: S
authors.lastname: Anuchapreeda
authors.forename: Chadarat
authors.initials: C
authors.lastname: Ampasavate
authors.forename: Cory
authors.initials: C
authors.lastname: Berkland
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000378:metabolism*; D045744:Cell Line, Tumor; D016503:Drug Delivery Systems / Q000379:methods* / Q000639:trends; D015972:Gene Expression Regulation, Neoplastic / Q000502:physiology; D018922:HL-60 Cells; D006801:Humans; D007938:Leukemia / Q000188:drug therapy* / Q000378:metabolism* / Q000473:pathology; D008024:Ligands; D016169:Lymphocyte Function-Associated Antigen-1 / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism*; D011485:Protein Binding / Q000187:drug effects / Q000502:physiology; D020298:U937 Cells
chemical_list: D000970:Antineoplastic Agents; D008024:Ligands; D016169:Lymphocyte Function-Associated Antigen-1