Oncotarget

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Interview with Dr. Robert Hsu from the Department of Internal Medicine, Division of Medical Oncology, Norris Comprehensive Cancer Center and Hospital, University of Southern California

Name: Interview with Interview with Dr. Robert Hsu from the Department of Internal Medicine, Division of Medical Oncology, Norris Comprehensive Cancer Center and Hospital, University of Southern California
Uploaded: 2022-07-11
Duration: 5 min 46 s
Description: Interview regarding his article published in Oncotarget Volume 12, Issue 25 titled Molecular characterization of Kita-Kyushu lung cancer antigen (KK-LC-1) expressing carcinomas

Dr. Robert Hsu from the Department of Internal Medicine, Division of Medical Oncology, Norris Comprehensive Cancer Center and Hospital, University of Southern California, describes a recent research paper he co-authored that was published by Oncotarget, entitled, "Molecular characterization of Kita-Kyushu lung cancer antigen (KK-LC-1) expressing carcinomas."

Cancer/testis antigens (CTAs) are strongly expressed in some solid tumors but minimally expressed in normal tissue, making them appealing therapeutic targets. KK-LC-1 (CXorf61) has cytoplasmic expression in gastric, breast, and lung cancer. We characterized the molecular subtypes of non-small cell lung cancer (NSCLC) expressing KK-LC-1 to inform rational clinical trials of T-cell receptor therapy (TCR-T) targeting KK-LC-1. 9790 NSCLC tumors that underwent whole transcriptome sequencing (Illumina NovaSeq) and NextGen DNA sequencing (NextSeq, 592 Genes and NovaSEQ, WES) at Caris Life Sciences (Phoenix, AZ) were analyzed. Tumors were split into quartiles based on KK-LC-1 expression and pathological and molecular differences were investigated. Adenocarcinoma had significantly higher KK-LC-1 expression than squamous cell carcinoma (median, 3.25 vs. 1.17 transcripts per million (TPM), p < 0.0001). Tumors with the highest quartile of KK-LC-1 expression had a greater proportion of tumors with high tumor mutation burden (TMB) (≥10 mutations per megabase; 44% vs. 28% in Q1, p < 0.001). Increased KK-LC-1 expression was associated with increased M1 macrophage abundance. Higher levels of KK-LC-1 expression were seen in pan-wild type and KRAS mutated tumors and associated with high TMB. TCR-T therapy directed against KK-LC-1 should be considered in patients whose clinical features reflect these characteristics.

DOI - https://doi.org/10.18632/oncotarget.28132

Full text - https://www.oncotarget.com/article/28132/text/

Correspondence to - Jorge J. Nieva - [email protected]

Keywords - lung cancer, tumor microenvironment, diagnostic biomarkers, biomarkers for immunotherapy, cancer testis antigen

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Interview with Dr. Robert Hsu from the Department of Internal Medicine, Division of Medical Oncology, Norris Comprehensive Cancer Center and Hospital, University of Southern California