Immunization With the CSF-470 Vaccine Plus BCG and rhGM-CSF Induced in a Cutaneous Melanoma Patient a TCRβ Repertoire Found at Vaccination Site and Tumor Infiltrating Lymphocytes That Persisted in Blood
Autor: | Mariana Aris, Alicia Inés Bravo, Heli Magalí Garcia Alvarez, Ibel Carri, Enrique Podaza, Paula Alejandra Blanco, Cecilia Rotondaro, Sofia Bentivegna, Morten Nielsen, María Marcela Barrio, José Mordoh |
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Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
lcsh:Immunologic diseases. Allergy
0301 basic medicine CIENCIAS MÉDICAS Y DE LA SALUD CUTANEOUS MELANOMA Immunology Inmunología Case Report Peripheral blood mononuclear cell 03 medical and health sciences cutaneous melanoma 0302 clinical medicine Immune system CSF-470 vaccine Antigen SDG 3 - Good Health and Well-being TCRβ repertoire Immunology and Allergy Medicine cutaneous metastasis TCRΒ REPERTOIRE TUMOR INFILTRATING LYMPHOCYTES business.industry Tumor-infiltrating lymphocytes ELISPOT purl.org/becyt/ford/3.1 [https] Vaccination Medicina Básica vaccination site 030104 developmental biology VACCINATION SITE Immunization tumor infiltrating lymphocytes CUTANEOUS METASTASIS purl.org/becyt/ford/3 [https] CSF-470 VACCINE lcsh:RC581-607 business CD8 030215 immunology |
Zdroj: | Frontiers in Immunology Aris, M, Bravo, A I, Garcia Alvarez, H M, Carri, I, Podaza, E, Blanco, P A, Rotondaro, C, Bentivegna, S, Nielsen, M, Barrio, M M & Mordoh, J 2019, ' Immunization With the CSF-470 Vaccine Plus BCG and rhGM-CSF Induced in a Cutaneous Melanoma Patient a TCRβ Repertoire Found at Vaccination Site and Tumor Infiltrating Lymphocytes That Persisted in Blood ', Frontiers in Immunology, vol. 10, 2213 . https://doi.org/10.3389/fimmu.2019.02213 CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Frontiers in Immunology, Vol 10 (2019) |
ISSN: | 1664-3224 |
DOI: | 10.3389/fimmu.2019.02213 |
Popis: | The CSF-470 cellular vaccine plus BCG and rhGM-CSF increased distant metastases-free survival in cutaneous melanoma patients stages IIB-IIC-III relative to medium dose IFN-α2b (CASVAC-0401 study). Patient-045 developed a mature vaccination site (VAC-SITE) and a regional cutaneous metastasis (C-MTS), which were excised during the protocol, remaining disease-free 36 months from vaccination start. CDR3-TCRβ repertoire sequencing in PBMC and tissue samples, along with skin-DTH score and IFN-γ ELISPOT assay, were performed to analyze the T-cell immune response dynamics throughout the immunization protocol. Histopathological analysis of the VAC-SITE revealed a highly-inflamed granulomatous structure encircled by CD11c+ nested-clusters, brisk CD8+ and scarce FOXP3+, lymphocytes with numerous Langhans multinucleated-giant-cells and macrophages. A large tumor-regression area fulfilled the C-MTS with brisk lymphocyte infiltration, mainly composed of CD8+PD1+ T-cells, CD20+ B-cells, and scarce FOXP3+ cells. Increasing DTH score and IFN-γ ELISPOT assay signal against the CSF-470 vaccine-lysate was evidenced throughout immunization. TCRβ repertoire analysis revealed for the first time the presence of common clonotypes between a VAC-SITE and a C-MTS; most of them persisted in blood by the end of the immunization protocol. In vitro boost with vaccine-lysate revealed the expansion of persistent clones that infiltrated the VAC-SITE and/or the C-MTS; other persistent clones expanded in the patient´s blood as well. We propose that expansion of such persistent clonotypes might derive from two different although complementary mechanisms: the proliferation of specific clones as well as the expansion of redundant clones, which increased the number of nucleotide rearrangements per clonotype, suggesting a functional antigenic selection. In this patient, immunization with the CSF-470 vaccine plus BCG and rhGM-CSF induced a T-cell repertoire at the VAC-SITE that was able to infiltrate an emerging C-MTS, which resulted in the expansion of a T-cell repertoire that persisted in blood by the end of the 2-year treatment. Fil: Aris, Mariana. Fundación Cáncer. Centro de Investigaciones Oncológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Bravo, Alicia Inés. Provincia de Buenos Aires. Ministerio de Salud. Hospital Interzonal de Agudos "Eva Perón"; Argentina Fil: García Álvarez, Heli Magalí. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Biotecnológicas; Argentina Fil: Carri, Ibel. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Biotecnológicas; Argentina Fil: Podaza, Enrique Arturo. Fundación Cáncer. Centro de Investigaciones Oncológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Blanco, Paula Alejandra. Fundación Cáncer. Centro de Investigaciones Oncológicas; Argentina Fil: Rotondaro, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina Fil: Bentivegna, Sofía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina Fil: Nielsen, Morten. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. - Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Biotecnológicas; Argentina. Technical University of Denmark; Dinamarca Fil: Barrios, María Marcela. Fundación Cáncer. Centro de Investigaciones Oncológicas; Argentina Fil: Mordoh, Jose. Fundación Cáncer. Centro de Investigaciones Oncológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Bioquímicas de Buenos Aires. Fundación Instituto Leloir. Instituto de Investigaciones Bioquímicas de Buenos Aires; Argentina. Instituto Alexander Fleming.; Argentina |
Databáze: | OpenAIRE |
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