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Proteomic Identification of Heat Shock-Induced Danger Signals in a Melanoma Cell Lysate Used in Dendritic Cell-Based Cancer Immunotherapy
Joint Authors
Tittarelli, Andrés
Pereda, Cristián
Salazar-Onfray, Flavio
González, Fermín E.
López, Mercedes N.
Chernobrovkin, Alexey
García-Salum, Tamara
Zubarev, Roman A.
Source
Journal of Immunology Research
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-18
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Autologous dendritic cells (DCs) loaded with cancer cell-derived lysates have become a promising tool in cancer immunotherapy.
During the last decade, we demonstrated that vaccination of advanced melanoma patients with autologous tumor antigen presenting cells (TAPCells) loaded with an allogeneic heat shock- (HS-) conditioned melanoma cell-derived lysate (called TRIMEL) is able to induce an antitumor immune response associated with a prolonged patient survival.
TRIMEL provides not only a broad spectrum of potential melanoma-associated antigens but also danger signals that are crucial in the induction of a committed mature DC phenotype.
However, potential changes induced by heat conditioning on the proteome of TRIMEL are still unknown.
The identification of newly or differentially expressed proteins under defined stress conditions is relevant for understanding the lysate immunogenicity.
Here, we characterized the proteomic profile of TRIMEL in response to HS treatment.
A quantitative label-free proteome analysis of over 2800 proteins was performed, with 91 proteins that were found to be regulated by HS treatment: 18 proteins were overexpressed and 73 underexpressed.
Additionally, 32 proteins were only identified in the HS-treated TRIMEL and 26 in non HS-conditioned samples.
One protein from the overexpressed group and two proteins from the HS-exclusive group were previously described as potential damage-associated molecular patterns (DAMPs).
Some of the HS-induced proteins, such as haptoglobin, could be also considered as DAMPs and candidates for further immunological analysis in the establishment of new putative danger signals with immunostimulatory functions.
American Psychological Association (APA)
González, Fermín E.& Chernobrovkin, Alexey& Pereda, Cristián& García-Salum, Tamara& Tittarelli, Andrés& López, Mercedes N.…[et al.]. 2018. Proteomic Identification of Heat Shock-Induced Danger Signals in a Melanoma Cell Lysate Used in Dendritic Cell-Based Cancer Immunotherapy. Journal of Immunology Research،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1192266
Modern Language Association (MLA)
González, Fermín E.…[et al.]. Proteomic Identification of Heat Shock-Induced Danger Signals in a Melanoma Cell Lysate Used in Dendritic Cell-Based Cancer Immunotherapy. Journal of Immunology Research No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1192266
American Medical Association (AMA)
González, Fermín E.& Chernobrovkin, Alexey& Pereda, Cristián& García-Salum, Tamara& Tittarelli, Andrés& López, Mercedes N.…[et al.]. Proteomic Identification of Heat Shock-Induced Danger Signals in a Melanoma Cell Lysate Used in Dendritic Cell-Based Cancer Immunotherapy. Journal of Immunology Research. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1192266
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1192266