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Cancers (Basel). 2020 Jul 17;12(7). doi: 10.3390/cancers12071943.

Pre-Treatment Mutational and Transcriptomic Landscape of Responding Metastatic Melanoma Patients to Anti-PD1 Immunotherapy.

Cancers

Carol M Amato, Jennifer D Hintzsche, Keith Wells, Allison Applegate, Nicholas T Gorden, Victoria M Vorwald, Richard P Tobin, Kelsey Nassar, Yiqun G Shellman, Jihye Kim, Theresa M Medina, Matthew Rioth, Karl D Lewis, Martin D McCarter, Rene Gonzalez, Aik-Choon Tan, William A Robinson

Affiliations

  1. Department of Medicine, Division of Medical Oncology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.
  2. Willamette Valley Cancer Institute and Research Center, Corvallis, OR 97330, USA.
  3. Saint Alphonsus Cancer Institute, Boise, ID 83706, USA.
  4. Department of Surgery, Division of Surgical Oncology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.
  5. Department of Dermatology, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.
  6. Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL 33612, USA.

PMID: 32708981 PMCID: PMC7409244 DOI: 10.3390/cancers12071943

Abstract

Immunotherapy, such as anti-PD1, has improved the survival of patients with metastatic melanoma. However, predicting which patients will respond to immunotherapy remains a significant knowledge gap. In this study we analyzed pre-immunotherapy treated tumors from 52 patients with metastatic melanoma and monitored their response based on RECIST 1.1 criteria. The responders group contained 21 patients that had a complete or partial response, while the 31 non-responders had stable or progressive disease. Whole exome sequencing (WES) was used to identify biomarkers of anti-PD1 response from somatic mutations between the two groups. Variants in codons G34 and G41 in

Keywords: CD83; NFKB; RNA sequencing; anti-PD1; biomarker; immunotherapy; melanoma; whole exome sequencing

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