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Article Dans Une Revue (Article De Synthèse) Molecular Oncology Année : 2024

Surfaceome: a new era in the discovery of immune evasion mechanisms of circulating tumor cells

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Circulating tumor cells (CTCs) are cancer cells that detach from the original site and reach the bloodstream. The most aggressive CTCs survive various immune system attacks and initiate metastasis formation. Importantly, CTCs are not specifically targeted by the current immunotherapies due to the limited knowledge on specific targets. Proteomic profiling can be a powerful tool for understanding some of the immune evasion mechanisms used by cancer cells and particularly CTCs. These mechanisms are generally linked to the expression of specific surface proteins/peptides (i.e. the surfaceome). The study of the peptides that bind to class I molecules of the major histocompatibility complex (MHC‐I) and of the various glycoproteins expressed on CTC surface may open a completely new avenue for the discovery of novel mechanisms of immune evasion. In this review, we discuss how immunopeptidomic and glycoproteomic studies of CTCs that interact with immune cells could help to better understand how metastasis‐initiator CTCs escape the host immune response. We also describe how immunopeptidomic and glycoproteomic studies are carried out.
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hal-04649173 , version 1 (16-07-2024)

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Doryan Masmoudi, Jérôme Vialaret, Christophe Hirtz, Catherine Alix-Panabières. Surfaceome: a new era in the discovery of immune evasion mechanisms of circulating tumor cells. Molecular Oncology, inPress, Online ahead of print. ⟨10.1002/1878-0261.13665⟩. ⟨hal-04649173⟩
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