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Evaluation of KRAS inhibitor-directed therapies for pancreatic cancer treatment
Abstract
Despite significant advancements in the treatment of other cancers, pancreatic ductal adenocarcinoma (PDAC) remains one of the world’s deadliest cancers. More than 90% of PDAC patients harbor a Kirsten rat sarcoma (KRAS) gene mutation. Although the clinical potential of anti-KRAS therapies has long been realized, all initial efforts to target KRAS were unsuccessful. However, with the recent development of a new generation of KRAS-targeting drugs, multiple KRAS-targeted treatment options for patients with PDAC have entered clinical trials. In this review, we provide an overview of current standard of care treatment, describe RAS signaling and the relevance of KRAS mutations, and discuss RAS isoform- and mutation-specific differences. We also evaluate the clinical efficacy and safety of mutation-selective and multi-selective inhibitors, in the context of PDAC. We then provide a comparison of clinically relevant KRAS inhibitors to second-line PDAC treatment options. Finally, we discuss putative resistance mechanisms that may limit the clinical effectiveness of KRAS-targeted therapies and provide a brief overview of promising therapeutic approaches in development that are focused on mitigating these resistance mechanisms.
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“This resistance may arise from tumor heterogeneity, resistance genes (such as KRAS mutations, PI3K/Akt/mTOR pathway activation), and the hypoxic, acidic tumor microenvironment, as well as the presence of drug efflux pumps [152, 153].”
From Emerging role of exosomes in cancer therapy: progress and challenges (2025) · cites this paper as [153]
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“Moreover, digestive system cancers, especially colorectal and pancreatic cancers, often display resistance to chemotherapy and targeted therapies.”
From Emerging role of exosomes in cancer therapy: progress and challenges (2025) · cites this paper as [153]
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Whole genomes redefine the mutational landscape of pancreatic cancer
Initiative, A. P. C. G., Waddell, N., Pajic, M., Patch, A.-M., Chang, D. K., Kassahn, K. S., Bailey, P., Johns, A. L., Miller, D., Nones, K., et al. (2015) · Nature · doi:10.1038/nature14169 · Cited by 2,642
K-Ras(G12C) inhibitors allosterically control GTP affinity and effector interactions
Ostrem, J. M., Peters, U., Sos, M. L., Wells, J. A., & Shokat, K. M. (2013) · Nature · doi:10.1038/nature12796 · Cited by 2,557
Oncogenic Kras maintains pancreatic tumors through regulation of anabolic glucose metabolism
Ying, H., Kimmelman, A. C., Lyssiotis, C. A., Hua, S., Chu, G. C., Fletcher-Sananikone, E., Locasale, J. W., Son, J., Zhang, H., Coloff, J. L., et al. (2012) · Cell · doi:10.1016/j.cell.2012.01.058 · Cited by 2,043
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Cox, A. D., Fesik, S. W., Kimmelman, A. C., Luo, J., & Der, C. J. (2014) · Nature Reviews Drug Discovery · doi:10.1038/nrd4389 · Cited by 1,997
Sotorasib for Lung Cancers with KRAS p.G12C Mutation
Skoulidis, F., Li, B. T., Dy, G. K., Price, T. J., Falchook, G. S., Wolf, J., Italiano, A., Schuler, M., Borghaei, H., Barlesi, F., et al. (2021) · New England Journal of Medicine · doi:10.1056/nejmoa2103695 · Cited by 1,849
Acquired Resistance to KRAS G12C Inhibition in Cancer
Awad, M. M., Liu, S., Rybkin, I. I., Arbour, K. C., Dilly, J., Zhu, V. W., Johnson, M. L., Heist, R. S., Patil, T., Riely, G. J., et al. (2021) · New England Journal of Medicine · doi:10.1056/nejmoa2105281 · Cited by 1,247 · cited 4×
“For instance, loss of NF1 has been observed in response to OFF state inhibitors, which facilitates more GTP-bound KRAS, preventing inhibitor binding (114).”
BackgroundInfluentialThe Frequency of Ras Mutations in Cancer
Prior, I. A., Hood, F. E., & Hartley, J. L. (2020) · Cancer Research · doi:10.1158/0008-5472.can-19-3682 · Cited by 1,130
Whole-exome sequencing of pancreatic cancer defines genetic diversity and therapeutic targets
Witkiewicz, A. K., McMillan, E. A., Balaji, U., Baek, G., Lin, W.-C., Mansour, J., Mollaee, M., Wagner, K.-U., Koduru, P., Yopp, A., et al. (2015) · Nature Communications · doi:10.1038/ncomms7744 · Cited by 1,115
Adagrasib in Non–Small-Cell Lung Cancer Harboring a KRAS G12C Mutation
Jänne, P. A., Riely, G. J., Gadgeel, S. M., Heist, R. S., Ou, S.-H. I., Pacheco, J. M., Johnson, M. L., Sabari, J. K., Leventakos, K., Yau, E., et al. (2022) · New England Journal of Medicine · doi:10.1056/nejmoa2204619 · Cited by 1,061
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Sorted by citations
Emerging role of exosomes in cancer therapy: progress and challenges
Li, J., Wang, J., & Chen, Z. (2025) · Molecular Cancer · doi:10.1186/s12943-024-02215-4 · Cited by 297
Metadata
- Authors
- Long, S.-A., Amparo, A. M., Goodhart, G., Ahmad, S. A., & Waters, A. M.
- Venue
- Frontiers in Oncology
- Publisher
- Frontiers Media SA
- Published
- 2024-05-10
- Volume
- 14
- ISSN
- 2234-943X
- PMC
- PMC11116577
- Cited by
- 31
- References
- 37
- Funders
- National Institutes of Health
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