CDKN2A loss-of-function predicts immunotherapy resistance in non-small cell lung cancer

Autor: Stanley I. Gutiontov, William Tyler Turchan, Liam F. Spurr, Sherin J. Rouhani, Carolina Soto Chervin, George Steinhardt, Angela M. Lager, Pankhuri Wanjari, Renuka Malik, Philip P. Connell, Steven J. Chmura, Aditya Juloori, Philip C. Hoffman, Mark K. Ferguson, Jessica S. Donington, Jyoti D. Patel, Everett E. Vokes, Ralph R. Weichselbaum, Christine M. Bestvina, Jeremy P. Segal, Sean P. Pitroda
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Druh dokumentu: article
ISSN: 2045-2322
09793879
DOI: 10.1038/s41598-021-99524-1
Popis: Abstract Immune checkpoint blockade (ICB) improves outcomes in non-small cell lung cancer (NSCLC) though most patients progress. There are limited data regarding molecular predictors of progression. In particular, there is controversy regarding the role of CDKN2A loss-of-function (LOF) in ICB resistance. We analyzed 139 consecutive patients with advanced NSCLC who underwent NGS prior to ICB initiation to explore the association of CDKN2A LOF with clinical outcomes. 73% were PD-L1 positive (≥ 1%). 48% exhibited high TMB (≥ 10 mutations/megabase). CDKN2A LOF was present in 26% of patients and was associated with inferior PFS (multivariate hazard ratio [MVA-HR] 1.66, 95% CI 1.02–2.63, p = 0.041) and OS (MVA-HR 2.08, 95% CI 1.21–3.49, p = 0.0087) when compared to wild-type (WT) patients. These findings held in patients with high TMB (median OS, LOF vs. WT 10.5 vs. 22.3 months; p = 0.069) and PD-L1 ≥ 50% (median OS, LOF vs. WT 11.1 vs. 24.2 months; p = 0.020), as well as in an independent dataset. CDKN2A LOF vs. WT tumors were twice as likely to experience disease progression following ICB (46% vs. 21%; p = 0.021). CDKN2A LOF negatively impacts clinical outcomes in advanced NSCLC treated with ICB, even in high PD-L1 and high TMB tumors. This novel finding should be prospectively validated and presents a potential therapeutic target.
Databáze: Directory of Open Access Journals
Externí odkaz: