Abstract
Introduction
We examined two genetic markers established early in colorectal tumor development, microsatellite instability (MSI) and mutation of the KRAS proto-oncogene, to see if these genetic changes influence metastatic disease progression and survival.
Patients and methods
MSI and KRAS mutation status were assessed in 532 primary adenocarcinomas (stage I–IV) from patients treated by colon resection. Median follow-up was 4.1 years (range 0–13.3 years) overall, 5.4 years for survivors.
Results
MSI and KRAS mutation were detected in 12 and 36% of cases, respectively. MSI was more common in early-stage disease (I, 15%; II, 21%; III, 10%; IV, 2%; P = 0.0001). Prevalence of KRAS mutation did not vary with stage (I, 36%; II, 34%; III, 35%; IV, 40%; P = ns). Disease-specific survival was far superior for MSI tumors than for microsatellite stability (MSS) tumors (5-year survival 92 vs. 59%, P < 0.0001). KRAS mutation was a marker of poor survival (5-year survival 55 vs. 68%, P = 0.0002). Using Cox regression analysis MSI, KRAS mutation, and stage were strong independent predictors of survival in the entire patient population. A high-mortality group with MSS/KRAS-mutant tumors was identified within the stage I and II cohort.
Conclusions
MSI and KRAS mutation provide fundamental genetic signatures influencing tumor behavior across patient subsets and stages of tumor development.
Similar content being viewed by others
References
Skibber J, Minsky B, Hoff P. Cancer of the colon. In: DeVita VT, Rosenberg SA, editors. Principles and practice of oncology. Philadelphia: Lippincott Williams & Wilkins; 2001.
Chapuis PH, Fisher R, Dent OF, Newland RC, Pheils MT. The relationship between different staging methods and survival in colorectal carcinoma. Dis Colon Rectum. 1985;28:158–61.
Barillari P, de Angelis R, Valabrega S, Indinnimeo M, Gozzo P, Ramacciato G, et al. Relationship of symptom duration and survival in patients with colorectal carcinoma. Eur J Surg Oncol. 1989;15:441–5.
Robinson M, Hardcastle J. Should we be screening for colorectal cancer? Br Med Bull. 1998;54:807–821.
Culliford A, Paty P. Surgery of colon cancer. In: Saltz L, editor. Colorectal cancer: multimodality management. Oxford, UK: Blackwell; 2002.
Diep CB, Thorstensen L, Meling GI, Skovlund E, Rognum TO, Lothe RA. Genetic tumor markers with prognostic impact in Dukes’ stages B and C colorectal cancer patients. J Clin Oncol. 2003;21:820–9.
Elsaleh H, Powell B, McCaul K, Grieu F, Grant R, Joseph D, et al. P53 alteration and microsatellite instability have predictive value for survival benefit from chemotherapy in stage III colorectal carcinoma. Clin Cancer Res. 2001;7:1343–9.
Gryfe R, Kim H, Hsieh ET, Aronson MD, Holowaty EJ, Bull SB, et al. Tumor microsatellite instability and clinical outcome in young patients with colorectal cancer. N Engl J Med. 2000;342:69–77.
Halling KC, French AJ, McDonnell SK, Burgart LJ, Schaid DJ, Peterson BJ, et al. Microsatellite instability and 8p allelic imbalance in stage B2 and C colorectal cancers. J Natl Cancer Inst. 1999;91:1295–303.
Peltomäki P, Lothe RA, Aaltonen LA, Pylkkänen L, Nyström-Lahti M, Seruca R, et al. Microsatellite instability is associated with tumors that characterize the hereditary non-polyposis colorectal carcinoma syndrome. Cancer Res. 1993;53:5853–5.
Slattery ML, Curtin K, Schaffer D, Anderson K, Samowitz W. Associations between family history of colorectal cancer and genetic alterations in tumors. Int J Cancer. 2002;97:823–7.
Watanabe T, Wu TT, Catalano PJ, Ueki T, Satriano R, Haller DG, et al. Molecular predictors of survival after adjuvant chemotherapy for colon cancer. N Engl J Med. 2001;344:1196–206.
Lièvre A, Bachet JB, Boige V, Cayre A, Le Corre D, Buc E, et al. KRAS mutations as an independent prognostic factor in patients with advanced colorectal cancer treated with cetuximab. J Clin Oncol. 2008;26:374–9.
Andreyev HJ, Norman AR, Cunningham D, Oates J, Dix BR, Iacopetta BJ, et al. Kirsten ras mutations in patients with colorectal cancer: the ‘RASCAL II’ study. Br J Cancer. 2001;85:692–6.
Andreyev HJ, Norman AR, Cunningham D, Oates JR, Clarke PA. Kirsten ras mutations in patients with colorectal cancer: the multicenter “RASCAL” study. J Natl Cancer Inst. 1998;90:675–84.
Klump B, Hehls O, Okech T, Hsieh CJ, Gaco V, Gittinger FS, et al. Molecular lesions in colorectal cancer: impact on prognosis? Original data and review of the literature. Int J Colorectal Dis. 2004;19:23–42.
Duffy MJ, van Dalen A, Haglund C, Hansson L, Holinski-Feder E, Klapdor R, et al. Tumour markers in colorectal cancer: European Group on Tumour Markers (EGTM) guidelines for clinical use. Eur J Cancer. 2007;43:1348–60.
Duffy MJ, van Dalen A, Haglund C, Hansson L, Klapdor R, Lamerz R, et al. Clinical utility of biochemical markers in colorectal cancer: European Group on Tumour Markers (EGTM) guidelines. Eur J Cancer. 2003;39:718–27.
Graziano F, Cascinu S. Prognostic molecular markers for planning adjuvant chemotherapy trials in Dukes’ B colorectal cancer patients: how much evidence is enough? Ann Oncol. 2003;14:1026–38.
Ionov Y, Peinado MA, Malkhosyan S, Shibata D, Perucho M. Ubiquitous somatic mutations in simple repeated sequences reveal a new mechanism for colonic carcinogenesis. Nature. 1993;363:558–61.
Kolodner RD, Marsischky GT. Eukaryotic DNA mismatch repair. Curr Opin Genet Dev. 1999;9:89–96.
Pedroni M, Sala E, Scarselli A, Borghi F, Menigatti M, Benatti P, et al. Microsatellite instability and mismatch-repair protein expression in hereditary and sporadic colorectal carcinogenesis. Cancer Res. 2001;61:896–9.
Rajagopalan H, Nowak MA, Vogelstein B, Lengauer C. The significance of unstable chromosomes in colorectal cancer. Nat Rev Cancer. 2003;3:695–701.
Yamashita K, Dai T, Dai Y, Yamamoto F, Perucho M. Genetics supersedes epigenetics in colon cancer phenotype. Cancer Cell. 2003;4:121–31.
Samowitz WS, Curtin K, Ma KN, Schaffer D, Coleman LW, Leppert M, et al. Microsatellite instability in sporadic colon cancer is associated with an improved prognosis at the population level. Cancer Epidemiol Biomarkers Prev. 2001;10:917–23.
Nash GM, Gimbel M, Shia J, Culliford AT, Nathanson DR, Ndubuisi M, et al. Automated, multiplex assay for high-frequency microsatellite instability in colorectal cancer. J Clin Oncol. 2003;21:3105–12.
Suraweera N, Duval A, Reperant M, Vaury C, Furlan D, Leroy K, et al. Evaluation of tumor microsatellite instability using five quasimonomorphic mononucleotide repeats and pentaplex PCR. Gastroenterology. 2002;123:1804–11.
Xicola RM, Llor X, Pons E, Castells A, Alenda C, Piñol V, et al. Performance of different microsatellite marker panels for detection of mismatch repair-deficient colorectal tumors. J Natl Cancer Inst. 2007;99:244–52.
Umar A, Boland CR, Terdiman JP, Syngal S, de la Chapelle A, Rüschoff J, et al. Revised Bethesda Guidelines for hereditary nonpolyposis colorectal cancer (Lynch syndrome) and microsatellite instability. J Natl Cancer Inst. 2004;96:261–8.
Cox AD, Der CJ: Ras family signaling: therapeutic targeting. Cancer Biol Ther. 2002;1:599–606.
Sahai E, Olson MF, Marshall CJ. Cross-talk between Ras and Rho signalling pathways in transformation favours proliferation and increased motility. EMBO J. 2001;20:755–66.
Porta M, Ayude D, Alguacil J, Jariod M. Exploring environmental causes of altered ras effects: fragmentation plus integration? Mol Carcinog. 2003;36:45–52.
Cheng L, Lai MD. Aberrant crypt foci as microscopic precursors of colorectal cancer. World J Gastroenterol. 2003;9:2642–9.
Shibata D, Schaeffer J, Li ZH, Capella G, Perucho M. Genetic heterogeneity of the c-K-ras locus in colorectal adenomas but not in adenocarcinomas. J Natl Cancer Inst. 1993;85:1058–63.
Kondo Y, Issa JP. Epigenetic changes in colorectal cancer. Cancer Metastasis Rev. 2004;23:29–39.
Ahnen DJ, Feigl P, Quan G, Fenoglio-Preiser C, Lovato LC, Bunn PA Jr., et al. Ki-ras mutation and p53 overexpression predict the clinical behavior of colorectal cancer: a Southwest Oncology Group study. Cancer Res. 1998;58:1149–58.
Samowitz WS, Curtin K, Schaffer D, Robertson M, Leppert M, Slattery ML. Relationship of Ki-ras mutations in colon cancers to tumor location, stage, and survival: a population-based study. Cancer Epidemiol Biomarkers Prev. 2000;9:1193–7.
Umetani N, Sasaki S, Watanabe T, Ishigami H, Ueda E, Nagawa H. Diagnostic primer sets for microsatellite instability optimized for a minimal amount of damaged DNA from colorectal tissue samples. Ann Surg Oncol. 2000;7:276–80.
Khanna M, Park P, Zirvi M, Cao W, Picon A, Day J, et al. Multiplex PCR/LDR for detection of K-ras mutations in primary colon tumors. Oncogene. 1999;18:27–38.
Alrawi SJ, Schiff M, Carroll RE, Dayton M, Gibbs JF, Kulavlat M, et al. Aberrant crypt foci. Anticancer Res. 2006;26:107–19.
Pretlow TP, Brasitus TA, Fulton NC, Cheyer C, Kaplan EL. K-ras mutations in putative preneoplastic lesions in human colon. J Natl Cancer Inst. 1993;85:2004–7.
Shibata D, Peinado MA, Ionov Y, Malkhosyan S, Perucho M. Genomic instability in repeated sequences is an early somatic event in colorectal tumorigenesis that persists after transformation. Nat Genet. 1994;6:273–81.
Losi L, Benhattar J, Costa J. Stability of K-ras mutations throughout the natural history of human colorectal cancer. Eur J Cancer. 1992;28A:1115–20.
Finkelstein SD, Sayegh R, Christensen S, Swalsky PA. Genotypic classification of colorectal adenocarcinoma. Biologic behavior correlates with K-ras-2 mutation type. Cancer. 1993;71:3827–38.
Vogelstein B, Fearon ER, Kern SE, Hamilton SR, Preisinger AC, Nakamura Y, et al. Allelotype of colorectal carcinomas. Science. 1989;244:207–11.
Curran B, Lenehan K, Mulcahy H, Tighe O, Bennett MA, Kay EW, et al. Replication error phenotype, clinicopathological variables, and patient outcome in Dukes’ B stage II (T3,N0,M0) colorectal cancer. Gut. 2000;46:200–4.
Gnanasampanthan G, Elsaleh H, McCaul K, Iacopetta B. Ki-ras mutation type and the survival benefit from adjuvant chemotherapy in Dukes’ C colorectal cancer. J Pathol. 2001;195:543–8.
Wang C, van Rijnsoever M, Grieu F, Bydder S, Elsaleh H, Joseph D, et al. Prognostic significance of microsatellite instability and Ki-ras mutation type in stage II colorectal cancer. Oncology. 2003;64:259–65.
Rodriguez R, Hansen LT, Phear G, Scorah J, Spang-Thomsen M, Cox A, et al. Thymidine selectively enhances growth suppressive effects of camptothecin/irinotecan in MSI+ cells and tumors containing a mutation of MRE11. Clin Cancer Res. 2008;14:5476–83.
Fink D, Aebi S, Howell SB. The role of DNA mismatch repair in drug resistance. Clin Cancer Res. 1998;4:1–6.
Lièvre A, Bachet JB, Le Corre D, Boige V, Landi B, Emile JF, et al. KRAS mutation status is predictive of response to cetuximab therapy in colorectal cancer. Cancer Res. 2006;66:3992–5.
Fallik D, Borrini F, Boige V, Viguier J, Jacob S, Miquel C, et al. Microsatellite instability is a predictive factor of the tumor response to irinotecan in patients with advanced colorectal cancer. Cancer Res. 2003;63:5738–44.
Zhu CQ, da Cunha Santos G, Ding K, Sakurada A, Cutz JC, Liu N, et al. Role of KRAS and EGFR as biomarkers of response to erlotinib in National Cancer Institute of Canada Clinical Trials Group Study BR 21. J Clin Oncol. 2008;26:4268–75.
Acknowledgment
This study was supported by a grant from the National Cancer Institute (2 P01 CA65930-05A2) awarded to P.B.P., and by the philanthropy of Marie and William Bianco honoring Cathy Kiley.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Nash, G.M., Gimbel, M., Cohen, A.M. et al. KRAS Mutation and Microsatellite Instability: Two Genetic Markers of Early Tumor Development That Influence the Prognosis of Colorectal Cancer. Ann Surg Oncol 17, 416–424 (2010). https://doi.org/10.1245/s10434-009-0713-0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1245/s10434-009-0713-0