Abstract
Mantle-cell lymphoma (MCL) remains incurable despite numerous therapeutic advances. OSU-2S, a novel nonimmunosuppressive FTY720 (Fingolimod) derivative, exhibits potent cytotoxicity in MCL cell lines and primary cells. OSU-2S increased the surface expression of CD74, a therapeutic antibody target in MCL cells. OSU-2S, in combination with anti-CD74 antibody milatuzumab, enhanced cytotoxicity in MCL. Moreover, MCL tumor antigen receptor tyrosine kinase-like orphan receptor 1 (ROR1) targeted immunonanoparticle-carrying OSU-2S (2A2-OSU-2S-ILP)-mediated selective cytotoxicity of MCL in vitro, as well as activity in a xenografted mouse model of MCL in vivo. The newly developed OSU-2S delivery using ROR1-directed immunonanoparticles provide selective targeting of OSU-2S to MCL and other ROR1(+) malignancies, sparing normal B cells.
Published by Elsevier Inc.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Animals
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Antibodies, Monoclonal, Humanized / pharmacology
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Antigens, Differentiation, B-Lymphocyte / genetics
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Antigens, Differentiation, B-Lymphocyte / metabolism
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Antigens, Neoplasm / metabolism
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Cytotoxins / pharmacology*
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Drug Delivery Systems*
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Fingolimod Hydrochloride
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Histocompatibility Antigens Class II / genetics
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Histocompatibility Antigens Class II / metabolism
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Humans
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Lymphoma, Mantle-Cell / genetics
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Lymphoma, Mantle-Cell / metabolism*
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Mice
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Mice, Inbred NOD
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Propylene Glycols / pharmacology*
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Receptor Tyrosine Kinase-like Orphan Receptors / genetics
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Receptor Tyrosine Kinase-like Orphan Receptors / metabolism*
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Sphingosine / analogs & derivatives*
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Sphingosine / pharmacology
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Xenograft Model Antitumor Assays
Substances
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Antibodies, Monoclonal, Humanized
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Antigens, Differentiation, B-Lymphocyte
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Antigens, Neoplasm
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Cytotoxins
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Histocompatibility Antigens Class II
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OSU-2S
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Propylene Glycols
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invariant chain
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milatuzumab
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ROR1 protein, human
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Receptor Tyrosine Kinase-like Orphan Receptors
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Fingolimod Hydrochloride
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Sphingosine