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Therapy model for advanced intracerebral B16 mouse melanoma using radiation therapy combined with immunotherapy.
MedLine Citation:
PMID:  23615842     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A reproducible therapy model for advanced intracerebral B16 melanoma is reported. Implanted tumors (D0), suppressed by a single 15 Gy radiosurgical dose of 100 kVp X-rays (D8), were further suppressed by a single ip injection of a Treg-depleting mAb given 2 days prior to the initiation (D9) of four weekly then eight bi-monthly sc injections of GMCSF-transfected, mitotically disabled B16 cells. The trends of seven independent experiments were similar to the combined result: The median (days) [SD/total N] of survival went from 15[1.09/62] (no treatment control) to 35.8[8.8/58] (radiation therapy only) to 52.5[13.5/57] (radiation therapy plus immunotherapy). Within 2 weeks after immunization, tumors in mice receiving radiation therapy plus immunotherapy were significantly smaller than tumors in mice treated only with radiosurgery. Splenocytes and lymph node cells from immunized mice showed increased interferon γ production when cultured with syngeneic tumor cells. We suggest that our model will be useful for the development and testing of novel combination therapies for brain tumors.
Authors:
Henry M Smilowitz; Daniel Sasso; Edward W Lee; Gyuhyeong Goh; Peggy L Micca; F Avraham Dilmanian
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-25
Journal Detail:
Title:  Cancer immunology, immunotherapy : CII     Volume:  -     ISSN:  1432-0851     ISO Abbreviation:  Cancer Immunol. Immunother.     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8605732     Medline TA:  Cancer Immunol Immunother     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT, 06030, USA, smilowitz@nso1.uchc.edu.
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