Cited by 936Lung Cancer Treatments and MutationsCancer Genomics and DiagnosticsLung Cancer Research Studies

Co-occurring Genomic Alterations Define Major Subsets of KRAS -Mutant Lung Adenocarcinoma with Distinct Biology, Immune Profiles, and Therapeutic Vulnerabilities

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Skoulidis, Ferdinandos, Byers, Lauren A., Diao, Lixia, Papadimitrakopoulou, Vassiliki A., Tong, Pan, Izzo, Julie, Behrens, Carmen, Kadara, Humam +29 more·2015·Cancer Discovery

Published version of a preprint

Abstract

The molecular underpinnings that drive the heterogeneity of KRAS-mutant lung adenocarcinoma are poorly characterized. We performed an integrative analysis of genomic, transcriptomic, and proteomic data from early-stage and chemorefractory lung adenocarcinoma and identified three robust subsets of KRAS-mutant lung adenocarcinoma dominated, respectively, by co-occurring genetic events in STK11/LKB1 (the KL subgroup), TP53 (KP), and CDKN2A/B inactivation coupled with low expression of the NKX2-1 (TTF1) transcription factor (KC). We further revealed biologically and therapeutically relevant differences between the subgroups. KC tumors frequently exhibited mucinous histology and suppressed mTORC1 signaling. KL tumors had high rates of KEAP1 mutational inactivation and expressed lower levels of immune markers, including PD-L1. KP tumors demonstrated higher levels of somatic mutations, inflammatory markers, immune checkpoint effector molecules, and improved relapse-free survival. Differences in drug sensitivity patterns were also observed; notably, KL cells showed increased vulnerability to HSP90-inhibitor therapy. This work provides evidence that co-occurring genomic alterations identify subgroups of KRAS-mutant lung adenocarcinoma with distinct biology and therapeutic vulnerabilities. Significance: Co-occurring genetic alterations in STK11/LKB1, TP53, and CDKN2A/B—the latter coupled with low TTF1 expression—define three major subgroups of KRAS-mutant lung adenocarcinoma with distinct biology, patterns of immune-system engagement, and therapeutic vulnerabilities. Cancer Discov; 5(8); 860–77. ©2015 AACR. This article is highlighted in the In This Issue feature, p. 783

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  • Inactivating mutations or loss of STK11/LKB1 define one of the major genomic sub-groups of KRAS-mutant lung cancers.

    “Inactivating mutations or loss of STK11/LKB1, which define one of the major genomic sub-groups of KRAS-mutant lung cancers1,19,62, are of particular interest because they are associated with decreased responsiveness to immune checkpoint blockade9,63 and poor overall prognosis64.”
  • In KRAS-mutated NSCLC, the tumor microenvironment frequently has lack or dysfunction of tumor-infiltrating lymphocytes, especially with STK11 co-mutations.

    “In KRAS-mutated NSCLC, the tumor microenvironment (TME) is frequently characterized by a lack or dysfunction of tumor-infiltrating lymphocytes (TILs), especially in the presence of co-occurring mutations in STK11 (also known as LKB1) (72, 73).”
  • Co-mutations of tumor suppressor genes such as TP53, SMARCA4, STK11, and/or KEAP1 commonly accompany KRAS mutations.

    “Concomitant mutation or deletion (hereafter, “co-mutations”) of different tumor suppressor genes (e.g., TP53, SMARCA4, STK11, and/or KEAP1) typically occur in concert with KRAS mutations (4,5).”
  • Combining AMG510 with anti-PD-1 or anti-PD-L1 therapy augmented T cell infiltration and achieved longer-term efficacy.

    “Combining AMG510 with anti-PD-1 or anti-PD-L1 therapy augmented T cell infiltration and achieve longer-term efficacy [42, 50, 150].”
  • In an analysis of cohorts with KRAS-mutated lung cancer that differed in clinical stage and preceding therapy, three major subgroups could be defined on the basis of RNA expression patterns and correlated with different patterns of co-occurring mutations in transformation-associated genes.

    “In an analysis of cohorts with KRAS-mutated lung cancer that differed in clinical stage and preceding therapy, three major subgroups could be defined on the basis of RNA expression patterns and correlated with different patterns of co-occurring mutations in transformationassociated genes.22”

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Authors
Skoulidis, F., Byers, L. A., Diao, L., Papadimitrakopoulou, V. A., Tong, P., Izzo, J., Behrens, C., Kadara, H., Parra, E. R., Canales, J. R., Zhang, J., Giri, U., Gudikote, J., Cortez, M. A., Yang, C., Fan, Y., Peyton, M., Girard, L., Coombes, K. R., Toniatti, C., Heffernan, T. P., Choi, M., Frampton, G. M., Miller, V., Weinstein, J. N., Herbst, R. S., Wong, K.-K., Zhang, J., Sharma, P., Mills, G. B., Hong, W. K., Minna, J. D., Allison, J. P., Futreal, A., Wang, J., Wistuba, I. I., & Heymach, J. V.
Affiliations
  • The University of Texas MD Anderson Cancer Center (US)
  • 5Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
  • 1Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas.
  • Harold C. Simmons Comprehensive Cancer Center (US)
  • The Ohio State University Wexner Medical Center (US)
  • Seoul National University (KR)
  • Foundation Medicine (United States) (US)
  • Yale Cancer Center (US)
  • Dana-Farber Cancer Institute (US)
  • 4Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Corresponding author
Heymach, John V.
Venue
Cancer Discovery
Published
2015-08-01
Volume
5
Issue
8
Pages
860-877
ISSN
  • 2159-8274 (ISSN-L)
  • 2159-8290
OpenAlex
W2145411470
Cited by
936
References
59
Citations by year
2026: 82 · 2025: 90 · 2024: 87 · 2023: 86 · 2022: 114 · 2021: 123 · 2020: 88 · 2019: 72 · 2018: 70 · 2017: 55 · 2016: 52 · 2015: 10 · 2014: 1
FWCI
49.37
Type
journal article
Language
en
Open access
Locations
  • Cancer Discovery (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (5r01ca205150-04)
  • National Cancer Institute (R01-CA205150, R01CA166480, CA 016672, P50CA098258, T32CA009666, R01CA140594, R01CA155196, P50CA070907, P01CA154303, R01CA168484, R01CA163896, P01CA120964, P30CA016672)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Lung Cancer Treatments and Mutations
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer Genomics and Diagnostics
  • Health Sciences › Medicine › Oncology › Lung Cancer Research Studies
Keywords
KRAS-mutant lung adenocarcinoma, tumor subtypes, STK11/LKB1, TP53, mTORC1 signaling, tumor immune microenvironment, PD-L1, drug sensitivity, Hsp90 inhibitors, mucinous histology, relapse-free survival
MeSH terms
Adenocarcinoma of Lung, AMP-Activated Protein Kinase Kinases, Adenocarcinoma, DNA-Binding Proteins, Humans, Inflammation, Lung Neoplasms, Mutation, Prognosis, Transcription Factors, Genetic Variation, Signal Transduction, Gene Expression, Cluster Analysis, Protein Serine-Threonine Kinases, Oxidative Stress, ras Proteins, Gene Expression Profiling, Genomics, Tumor Suppressor Proteins, Cell Line, Tumor, AMP-Activated Protein Kinases

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