Generation and characterization of a functional Nanobody against inflammatory chemokine CXCL10, as a novel strategy for treatment of multiple sclerosis

(2018) Generation and characterization of a functional Nanobody against inflammatory chemokine CXCL10, as a novel strategy for treatment of multiple sclerosis. CNS Neurol Disord Drug Targets. ISSN 1996-3181 (Electronic) 1871-5273 (Linking)

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Abstract

Chemokines and their receptors play a pivotal role in the pathogenesis of various autoimmune diseases such as multiple sclerosis, infectious diseases, and also in cancer metastasis via attraction of the pathogenic immune cells into the inflammation sites. Inflammatory chemokine CXCL10 as a T helper (Th)1-chemokine directs chemotaxis of many cell subsets especially Th1 into the central nevous system (CNS) via its receptor CXCR3 and it has been put forward as a potential therapeutic target in treatment of multiple sclerosis. Nanobodies are the smallest intact antigen binding fragments derived from heavy chain-only antibodies occurring in camelids with unique biochemical and biophysical features which render them superior to conventional antibodies or antibody fragments. Here we describe the generation, selection, and characterization of CXCL10-specific Nanobodies from camel immunized with CXCL10. The obtained Nanobodies displayed high affinity toward CXCL10 about 10-11-10-8 M. Then a Nanobody with the highest affinity named 3Nb12 was selected and investigated as a migration inhibitor of CXCR3+ cells. Chemotaxis assay results showed that 3Nb12 blocked CXCL10-CXCR3 binding and potently inhibited chemotaxis of CXCR3-transfected HEK293T cells. The Nanobody 3Nb12 might be a promising specific and powerful blocking agent of CXCL10 function, which can be used for diagnostic, therapeutic and research purposes in MS.

Item Type: Article
Keywords: Cxcl10 Cxcr3 Chemotaxis Heavy chain antibody Multiple sclerosis Nanobody
Divisions: Faculty of Medicine > Department of Basic Science > Department of Molecular Medicine and Genetics
Faculty of Pharmacy and Pharmaceutical Sciences > Department of Pharmaceutical Biotechnology
Journal or Publication Title: CNS Neurol Disord Drug Targets
Journal Index: Pubmed
Identification Number: https://doi.org/10.2174/1871527317666181114134518
ISSN: 1996-3181 (Electronic) 1871-5273 (Linking)
Depositing User: Zahra Otroj
URI: http://eprints.mui.ac.ir/id/eprint/7959

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