Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer

<p dir="ltr">Immune checkpoint blockade (ICB) has been approved as first- or second-line therapy options in a broadening range of metastatic cancer and is increasingly explored in the treatment of early stage tumors. However, clinical responses are limited to a small group of patient...

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Main Author: Said Dermime (79420) (author)
Other Authors: Maysaloun Merhi (4246147) (author), Taha Merghoub (217303) (author)
Published: 2021
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author Said Dermime (79420)
author2 Maysaloun Merhi (4246147)
Taha Merghoub (217303)
author2_role author
author
author_facet Said Dermime (79420)
Maysaloun Merhi (4246147)
Taha Merghoub (217303)
author_role author
dc.creator.none.fl_str_mv Said Dermime (79420)
Maysaloun Merhi (4246147)
Taha Merghoub (217303)
dc.date.none.fl_str_mv 2021-10-21T03:00:00Z
dc.identifier.none.fl_str_mv 10.3389/fimmu.2021.781872
dc.relation.none.fl_str_mv https://figshare.com/articles/journal_contribution/Editorial_Dynamic_Biomarkers_of_Response_to_Anti-Immune_Checkpoint_Inhibitors_in_Cancer/25756461
dc.rights.none.fl_str_mv CC BY 4.0
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Biomedical and clinical sciences
Immunology
Oncology and carcinogenesis
immune checkpoint inhibitors (ICI)
programmed cell death protein 1 (PD1)
programmed cell death ligand 1 (PD-L1)
dynamic biomarkers
irAEs
dc.title.none.fl_str_mv Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
dc.type.none.fl_str_mv Text
Journal contribution
info:eu-repo/semantics/publishedVersion
text
contribution to journal
description <p dir="ltr">Immune checkpoint blockade (ICB) has been approved as first- or second-line therapy options in a broadening range of metastatic cancer and is increasingly explored in the treatment of early stage tumors. However, clinical responses are limited to a small group of patients and potentially long-lasting responses were observed in 10% to 40% of cancer patients, depending on the malignancy subtype. Considerable efforts have been made to identify predictive factors of response to ICB with the aim to use this therapy in patients with a high probability of response and to avoid exposing non-responder subjects to their potential side effects. Whilst a range of biomarkers have been investigated, their predictive potential remains unsatisfactory. In current clinical practice only PD-L1 expression in tumor tissues is used as predictive biomarker of response to PD-1 immune checkpoint blockade. However, a small proportion of patients with absent PD-L1 tumor expression may still respond to PD-1 blockade, making it difficult to restrict prescription of these therapies solely based on this biomarker. Hence, the search for novel biomarkers of response to checkpoint inhibitors remains an unmet need. One promising emerging approach is to focus on dynamic biomarkers, which would allow, when tested in the patient early after exposition to the therapeutic agents, to identify those patients presenting an immune response failure. The study of the dynamics of the immune system and of the tumor under immune checkpoint blockade shed light on their mechanisms of activity. Indeed, some immune pathways induced by ICB therapy may affect anti-tumor activity, whilst others may correlate with immune related adverse events (irAE) rather than with response. Moreover, tumor-intrinsic mechanisms of immune escape may develop following ICB and will consequently affect treatment outcome. We have recently summarized the dynamics of the immune system and of the tumor under immune checkpoint blockade. We emphasized the importance of studying mechanisms influencing response to ICB and focused on the multitude of immune cells subsets (including effector and immunosuppressive T cells and B cells subsets) that were shown to be impacted by CTLA-4 and PD-1/PD-L1 blockade monotherapy. In this Research Topic, we compiled reviews and original research articles reflecting the current advances in the study of dynamic biomarkers as predictors of the response to checkpoint inhibitors therapies in cancer. Four complimentary areas are addressed in this topic.</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Immunology<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fimmu.2021.781872" target="_blank">https://dx.doi.org/10.3389/fimmu.2021.781872</a></p>
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spelling Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in CancerSaid Dermime (79420)Maysaloun Merhi (4246147)Taha Merghoub (217303)Biomedical and clinical sciencesImmunologyOncology and carcinogenesisimmune checkpoint inhibitors (ICI)programmed cell death protein 1 (PD1)programmed cell death ligand 1 (PD-L1)dynamic biomarkersirAEs<p dir="ltr">Immune checkpoint blockade (ICB) has been approved as first- or second-line therapy options in a broadening range of metastatic cancer and is increasingly explored in the treatment of early stage tumors. However, clinical responses are limited to a small group of patients and potentially long-lasting responses were observed in 10% to 40% of cancer patients, depending on the malignancy subtype. Considerable efforts have been made to identify predictive factors of response to ICB with the aim to use this therapy in patients with a high probability of response and to avoid exposing non-responder subjects to their potential side effects. Whilst a range of biomarkers have been investigated, their predictive potential remains unsatisfactory. In current clinical practice only PD-L1 expression in tumor tissues is used as predictive biomarker of response to PD-1 immune checkpoint blockade. However, a small proportion of patients with absent PD-L1 tumor expression may still respond to PD-1 blockade, making it difficult to restrict prescription of these therapies solely based on this biomarker. Hence, the search for novel biomarkers of response to checkpoint inhibitors remains an unmet need. One promising emerging approach is to focus on dynamic biomarkers, which would allow, when tested in the patient early after exposition to the therapeutic agents, to identify those patients presenting an immune response failure. The study of the dynamics of the immune system and of the tumor under immune checkpoint blockade shed light on their mechanisms of activity. Indeed, some immune pathways induced by ICB therapy may affect anti-tumor activity, whilst others may correlate with immune related adverse events (irAE) rather than with response. Moreover, tumor-intrinsic mechanisms of immune escape may develop following ICB and will consequently affect treatment outcome. We have recently summarized the dynamics of the immune system and of the tumor under immune checkpoint blockade. We emphasized the importance of studying mechanisms influencing response to ICB and focused on the multitude of immune cells subsets (including effector and immunosuppressive T cells and B cells subsets) that were shown to be impacted by CTLA-4 and PD-1/PD-L1 blockade monotherapy. In this Research Topic, we compiled reviews and original research articles reflecting the current advances in the study of dynamic biomarkers as predictors of the response to checkpoint inhibitors therapies in cancer. Four complimentary areas are addressed in this topic.</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Immunology<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/fimmu.2021.781872" target="_blank">https://dx.doi.org/10.3389/fimmu.2021.781872</a></p>2021-10-21T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3389/fimmu.2021.781872https://figshare.com/articles/journal_contribution/Editorial_Dynamic_Biomarkers_of_Response_to_Anti-Immune_Checkpoint_Inhibitors_in_Cancer/25756461CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/257564612021-10-21T03:00:00Z
spellingShingle Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
Said Dermime (79420)
Biomedical and clinical sciences
Immunology
Oncology and carcinogenesis
immune checkpoint inhibitors (ICI)
programmed cell death protein 1 (PD1)
programmed cell death ligand 1 (PD-L1)
dynamic biomarkers
irAEs
status_str publishedVersion
title Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
title_full Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
title_fullStr Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
title_full_unstemmed Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
title_short Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
title_sort Editorial: Dynamic Biomarkers of Response to Anti-Immune Checkpoint Inhibitors in Cancer
topic Biomedical and clinical sciences
Immunology
Oncology and carcinogenesis
immune checkpoint inhibitors (ICI)
programmed cell death protein 1 (PD1)
programmed cell death ligand 1 (PD-L1)
dynamic biomarkers
irAEs