6533b820fe1ef96bd127a418
RESEARCH PRODUCT
Tumour mutational burden as a biomarker for immunotherapy: Current data and emerging concepts
Jean David FumetFrançois GhiringhelliCaroline TruntzerMark Yarchoansubject
0301 basic medicineCancer ResearchImmune checkpoint inhibitorsmedicine.medical_treatment[SDV]Life Sciences [q-bio]DNA Mutational AnalysisProgrammed Cell Death 1 ReceptorTumour mutational burdenBioinformaticsArticleB7-H1 Antigen03 medical and health sciencesAntineoplastic Agents Immunological0302 clinical medicineImmune systemNeoplasmsBiomarkers TumorHumansMedicineIn patientGenetic TestingPredictive biomarkerbusiness.industryPatient SelectionCancerBiomarkerImmunotherapymedicine.disease3. Good healthBiomarker (cell)[SDV] Life Sciences [q-bio]030104 developmental biologyOncologyDrug Resistance Neoplasm030220 oncology & carcinogenesisMutationImmunotherapybusinessCD8description
International audience; Treatment with immune checkpoint inhibitors targeting programmed cell death protein 1 (PD-1) or its ligand (PD-L1) can generate durable responses in various cancer types, but only in a subset of patients. The use of predictive biomarkers for response to PD-1/PD-L1 inhibitors is critical for patient selection. Expression of PD-L1 has demonstrated utility in patient selection. Tumour mutational burden (TMB) is an emerging biomarker for response to PD-1/PD-L1 inhibitors. The evaluation of this biomarker is based on the hypothesis that a high number of mutations in somatic exonic regions will lead to an increase in neoantigen production, which could then be recognised by CD8+ T cells, resulting in improved immune responses. In this review, we will discuss rationale and implementation of TMB usage in patients, development of different methods to assess it, current limitations and technical issues to use this biomarker as a diagnostic test and propose future perspectives beyond TMB.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-05-31 |