Determinants of resistance to engineered T cell therapies targeting CD19 in large B cell lymphomas

Brian J. Sworder, David M. Kurtz, Stefan K. Alig, Matthew J. Frank, Navika Shukla, Andrea Garofalo, Charles W. Macaulay, Mohammad Shahrokh Esfahani, Mari N. Olsen, James Hamilton, Hitomi Hosoya, Mark Hamilton, Jay Y. Spiegel, John H. Baird, Takeshi Sugio, Mia Carleton, Alexander F.M. Craig, Sheren F. Younes, Bita Sahaf, Natasha D. SheybaniJoseph G. Schroers-Martin, Chih Long Liu, Jean S. Oak, Michael C. Jin, Sara Beygi, Andreas Hüttmann, Christine Hanoun, Ulrich Dührsen, Jason R. Westin, Michael S. Khodadoust, Yasodha Natkunam, Robbie G. Majzner, Crystal L. Mackall, Maximilian Diehn, David B. Miklos, Ash A. Alizadeh

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Most relapsed/refractory large B cell lymphoma (r/rLBCL) patients receiving anti-CD19 chimeric antigen receptor (CAR19) T cells relapse. To characterize determinants of resistance, we profiled over 700 longitudinal specimens from two independent cohorts (n = 65 and n = 73) of r/rLBCL patients treated with axicabtagene ciloleucel. A method for simultaneous profiling of circulating tumor DNA (ctDNA), cell-free CAR19 (cfCAR19) retroviral fragments, and cell-free T cell receptor rearrangements (cfTCR) enabled integration of tumor and both engineered and non-engineered T cell effector-mediated factors for assessing treatment failure and predicting outcomes. Alterations in multiple classes of genes are associated with resistance, including B cell identity (PAX5 and IRF8), immune checkpoints (CD274), and those affecting the microenvironment (TMEM30A). Somatic tumor alterations affect CAR19 therapy at multiple levels, including CAR19 T cell expansion, persistence, and tumor microenvironment. Further, CAR19 T cells play a reciprocal role in shaping tumor genotype and phenotype. We envision these findings will facilitate improved chimeric antigen receptor (CAR) T cells and personalized therapeutic approaches.

Original languageEnglish (US)
Pages (from-to)210-225.e5
JournalCancer cell
Volume41
Issue number1
DOIs
StatePublished - Jan 9 2023

Keywords

  • cell-free DNA
  • chimeric antigen receptor T cells
  • circulating tumor DNA
  • ctDNA
  • genomics
  • immunotherapy
  • large B cell lymphoma
  • MRD
  • oncology
  • precision medicine

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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