Peripheral Blood TCRß Repertoire, IL15, IL2 and Soluble Ligands for NKG2D Activating Receptor Predict Efficacy of Immune Checkpoint Inhibitors in Lung Cancer

Sesma, Andrea ; Pardo, Julian (Universidad de Zaragoza) ; Isla, Dolores ; M. Gálvez, Eva ; Gascón-Ruiz, Marta ; Martínez-Lostao, Luis (Universidad de Zaragoza) ; Moratiel, Alba ; Paño-Pardo, J. Ramón (Universidad de Zaragoza) ; Quílez, Elisa ; Torres-Ramón, Irene ; Yubero, Alfonso ; Zapata-García, María ; Domingo, María Pilar ; Esteban, Patricia ; Sanz Pamplona, Rebeca ; Lastra, Rodrigo ; Ramírez-Labrada, Ariel

Resumen: The development of immune checkpoint inhibitors (ICIs) has changed the therapeutic paradigm of lung cancer (LC), becoming the standard of treatment for previously untreated advanced non-small cell lung cancer (NSCLC) without actionable mutations. It has allowed the achievement of durable responses and resulted in significant survival benefits. However, not all patients respond; hence, molecular biomarkers are needed to help us predict which patients will respond. With this objective, a prospective observational study was designed, including a cohort of 55 patients with NSCLC who received ICIs. We studied whether biomarkers such as TCRβ and specific cytokines involved in the regulation of T cell activity were related to the immunotherapy response. In the survival analysis, it was found that patients with higher TCRβ clonality, lower TCRβ evenness, higher TCRβ Shannon diversity and lower TCRβ convergence had higher overall survival (OS) and progression-free survival (PFS). However, no statistically significant association was observed. Regarding cytokines, those patients with higher levels of IL-2 and IL-15 presented statistically significantly shorter OS and PFS, respectively. In fact, in the multivariable analysis, the high IL-15 level increased the risk of death by three times. Although the sample size was small and more studies are needed to confirm our results, our study reveals promising markers of responses to ICIs.

Idioma: Inglés

DOI: 10.3390/cancers16162798

Año: 2024

Publicado en: Cancers 16, 16 (2024), 2798 [22 pp.]
ISSN: 2072-6694

Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2020-113963RB-I00
Financiación: info:eu-repo/grantAgreement/ES/AEI/PTA2019-016739-I
Financiación: info:eu-repo/grantAgreement/ES/AEI/RYC2022-036627-I
Financiación: info:eu-repo/grantAgreement/ES/DGA/B29-20R

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Inmunología (Dpto. Microb.Ped.Radio.Sal.Pú.)
Área (Departamento): Area Medicina (Dpto. Medicina, Psiqu. y Derm.)