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Near-Complete Remission of Glioblastoma in a Patient Treated with an Allogenic Dendritic Cell-Based Vaccine: The Role of Tumor-Specific CD4+T-Cell Cytokine Secretion Pattern in Predicting Response and Recurrence

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Pinho, Mariana P. ; Lepski, Guilherme A. ; Rehder, Roberta ; Chauca-Torres, Nadia E. ; Evangelista, Gabriela C. M. ; Teixeira, Sarah F. ; Flatow, Elizabeth A. ; de Oliveira, Jaqueline V. ; Fogolin, Carla S. ; Peres, Nataly ; Arevalo, Analia ; Alves, Venancio ; Barbuto, Jose A. M. ; Bergami-Santos, Patricia C.
Total Authors: 14
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES; v. 23, n. 10, p. 10-pg., 2022-05-01.
Abstract

Immunotherapy has brought hope to the fight against glioblastoma, but its efficacy remains unclear. We present the case of CST, a 25-year-old female patient with a large right-hemisphere glioblastoma treated with a dendritic-tumor cell fusion vaccine. CST showed a near-complete tumor response, with a marked improvement in her functional status and simultaneous increases in tumor-specific CD8+ and CD4+ T cells. Two months before recurrence, the frequency of tumor-specific T cells decreased, while that of IL-17 and CD4+ T cells increased. CST passed away 15 months after enrollment. In this illustrative case, the tumor-specific CD4+ T-cell numbers and phenotype behaved as treatment efficacy biomarkers, highlighting the key role of the latter in glioblastoma immunotherapy. (AU)

FAPESP's process: 14/25988-1 - Analysis of the T cell repertoire in cancer patients: unveiling the antitumor immune response in humans
Grantee:Mariana Pereira Pinho
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 16/01137-8 - Analysis of the tumor-antigen specific T cell repertoire in healthy donors using T cell libraries
Grantee:Mariana Pereira Pinho
Support Opportunities: Scholarships abroad - Research Internship - Doctorate