Depletion of regulatory T cells by targeting folate receptor 4 enhances the potency of a GM-CSF-secreting tumor cell immunotherapy

Copyright © 2013 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 148(2013), 2 vom: 15. Aug., Seite 287-98
1. Verfasser: Liang, Spencer C (VerfasserIn)
Weitere Verfasser: Moskalenko, Marina, Van Roey, Melinda, Jooss, Karin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2013
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Cancer immunotherapy Costimulation T cells Tregs Antibodies Cancer Vaccines Receptors, Cell Surface folate receptor 4, mouse Granulocyte-Macrophage Colony-Stimulating Factor 83869-56-1
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245 1 0 |a Depletion of regulatory T cells by targeting folate receptor 4 enhances the potency of a GM-CSF-secreting tumor cell immunotherapy 
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520 |a In this report, a Treg-depleting anti-FR4 antibody is combined with a GM-CSF-secreting tumor cell immunotherapy (GVAX) for treatment of melanoma-bearing animals. Median survival time (MST) of animals treated with GVAX was 41 days, compared to a MST of 32 days in untreated animals. Anti-FR4 monotherapy had no effect on MST. Combination of anti-FR4 and GVAX significantly prolonged MST to 55 days, suggesting that these two agents can function cooperatively. Combination therapy increased expression of IFN-γ and granzyme B by CD8 T cells. In contrast to anti-CD25-mediated Treg depletion, administration of anti-FR4 after GVAX did not reduce efficacy, suggesting that anti-FR4 does not deplete effector cells induced by GVAX. Triple combination of a blocking CTLA4 antibody with GVAX and anti-FR4 further enhanced overall survival and reduced growth of well-established melanomas. Considered together, anti-FR4 antibody and GVAX may be a promising approach for the treatment of patients with cancer 
650 4 |a Journal Article 
650 4 |a Cancer immunotherapy 
650 4 |a Costimulation 
650 4 |a T cells 
650 4 |a Tregs 
650 7 |a Antibodies  |2 NLM 
650 7 |a Cancer Vaccines  |2 NLM 
650 7 |a Receptors, Cell Surface  |2 NLM 
650 7 |a folate receptor 4, mouse  |2 NLM 
650 7 |a Granulocyte-Macrophage Colony-Stimulating Factor  |2 NLM 
650 7 |a 83869-56-1  |2 NLM 
700 1 |a Moskalenko, Marina  |e verfasserin  |4 aut 
700 1 |a Van Roey, Melinda  |e verfasserin  |4 aut 
700 1 |a Jooss, Karin  |e verfasserin  |4 aut 
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