Abstract
The Wnt and the extracellular signal regulated-kinase (ERK) pathways are both involved in the pathogenesis of various kinds of cancers. Recently, the existence of crosstalk between Wnt and ERK pathways was reported. Gathering all reported results, we have discovered a positive feedback loop embedded in the crosstalk between the Wnt and ERK pathways. We have developed a plausible model that represents the role of this hidden positive feedback loop in the Wnt/ERK pathway crosstalk based on the integration of experimental reports and employing established basic mathematical models of each pathway. Our analysis shows that the positive feedback loop can generate bistability in both the Wnt and ERK signaling pathways, and this prediction was further validated by experiments. In particular, using the commonly accepted assumption that mutations in signaling proteins contribute to cancerogenesis, we have found two conditions through which mutations could evoke an irreversible response leading to a sustained activation of both pathways. One condition is enhanced production of β-catenin, the other is a reduction of the velocity of MAP kinase phosphatase(s). This enables that high activities of Wnt and ERK pathways are maintained even without a persistent extracellular signal. Thus, our study adds a novel aspect to the molecular mechanisms of carcinogenesis by showing that mutational changes in individual proteins can cause fundamental functional changes well beyond the pathway they function in by a positive feedback loop embedded in crosstalk. Thus, crosstalk between signaling pathways provides a vehicle through which mutations of individual components can affect properties of the system at a larger scale.
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Abbreviations
- APC:
-
adenomatous polyposis coli
- Dsh:
-
dishevelled
- EGFR:
-
epidermal growth factor receptor
- ERK:
-
extracellular signal related-kinase
- GSK-3β:
-
glycogen synthase kinase 3β
- MKP:
-
MAP kinase phosphatase
- PP1:
-
protein phosphatase 1
- PP2A:
-
protein phosphatase 2A
- RKIP:
-
Raf-1 kinase inhibitor protein
- TCF:
-
T-cell factor
References
Aberle H, Bauer A, Stappert J, Kispert A, Kemler R . (1997). beta-catenin is a target for the ubiquitin-proteasome pathway. EMBO J 16: 3797â3804.
Almeida M, Han L, Bellido T, Manolagas SC, Kousteni S . (2005). Wnt proteins prevent apoptosis of both uncommitted osteoblast progenitors and differentiated osteoblasts by beta-catenin-dependent and -independent signaling cascades involving Src/ERK and phosphatidylinositol 3-kinase/AKT. J Biol Chem 280: 41342â41351.
Amaral MC, Casillas AM, Nel AE . (1993). Contrasting effects of two tumour promoters, phorbol myristate acetate and okadaic acid, on T-cell responses and activation of p42 MAP-kinase/ERK-2. Immunology 79: 24â31.
Aust DE, Haase M, Dobryden L, Markwarth A, Lohrs U, Wittekind C et al. (2005). Mutations of the BRAF gene in ulcerative colitis-related colorectal carcinoma. Int J Cancer 115: 673â677.
Behrens J . (2005). The role of the Wnt signalling pathway in colorectal tumorigenesis. Biochem Soc Trans 33: 672â675.
Behrens J, Lustig B . (2004). The Wnt connection to tumorigenesis. Int J Dev Biol 48: 477â487.
Casillas AM, Amaral K, Chegini-Farahani S, Nel AE . (1993). Okadaic acid activates p42 mitogen-activated protein kinase (MAP kinase; ERK-2) in B-lymphocytes but inhibits rather than augments cellular proliferation: contrast with phorbol 12-myristate 13-acetate. Biochem J 290 (Part 2): 545â550.
Cho KH, Baek S, Sung MH . (2006). Wnt pathway mutations selected by optimal beta-catenin signaling for tumorigenesis. FEBS Lett 580: 3665â3670.
Cho K-H, Shin S-Y, Kim H-W, Wolkenhauer O, McFerran B, Kolch W . (2003). Mathematical modeling of the influence of RKIP on the ERK pathway. Lecture Notes Comp Sci 2602: 127â141.
Civenni G, Holbro T, Hynes NE . (2003). Wnt1 and Wnt5a induce cyclin D1 expression through ErbB1 transactivation in HC11 mammary epithelial cells. EMBO Rep 4: 166â171.
Ding Q, Xia W, Liu JC, Yang JY, Lee DF, Xia J et al. (2005). Erk associates with and primes GSK-3beta for its inactivation resulting in upregulation of beta-catenin. Mol Cell 19: 159â170.
Downward J . (2003). Targeting RAS signalling pathways in cancer therapy. Nat Rev Cancer 3: 11â22.
Esufali S, Bapat B . (2004). Cross-talk between Rac1 GTPase and dysregulated Wnt signaling pathway leads to cellular redistribution of beta-catenin and TCF/LEF-mediated transcriptional activation. Oncogene 23: 8260â8271.
Fang JY, Richardson BC . (2005). The MAPK signalling pathways and colorectal cancer. Lancet Oncol 6: 322â327.
Ferrell Jr JE . (2002). Self-perpetuating states in signal transduction: positive feedback, double-negative feedback and bistability. Curr Opin Cell Biol 14: 140â148.
Harada N, Tamai Y, Ishikawa T, Sauer B, Takaku K, Oshima M et al. (1999). Intestinal polyposis in mice with a dominant stable mutation of the beta-catenin gene. EMBO J 18: 5931â5942.
Kim CJ, Cho YG, Park YG, Nam SW, Kim SY, Lee SH et al. (2005). Pin1 overexpression in colorectal cancer and its correlation with aberrant beta-catenin expression. World J Gastroenterol 11: 5006â5009.
Kim K, Pang KM, Evans M, Hay ED . (2000). Overexpression of beta-catenin induces apoptosis independent of its transactivation function with LEF-1 or the involvement of major G1 cell cycle regulators. Mol Biol Cell 11: 3509â3523.
Kinzler KW, Vogelstein B . (1996). Lessons from hereditary colorectal cancer. Cell 87: 159â170.
Kolch W . (2005). Coordinating ERK/MAPK signalling through scaffolds and inhibitors. Nat Rev Mol Cell Biol 6: 827â837.
Kolch W, Calder M, Gilbert D . (2005). When kinases meet mathematics: the systems biology of MAPK signalling. FEBS Lett 579: 1891â1895.
Kolch W, Kotwaliwale A, Vass K, Janosch P . (2002). The role of Raf kinases in malignant transformation. Expert Rev Mol Med 2002: 1â18.
Lee E, Salic A, Kruger R, Heinrich R, Kirschner MW . (2003). The roles of APC and Axin derived from experimental and theoretical analysis of the Wnt pathway. PLoS Biol 1: E10.
Loda M, Capodieci P, Mishra R, Yao H, Corless C, Grigioni W et al. (1996). Expression of mitogen-activated protein kinase phosphatase-1 in the early phases of human epithelial carcinogenesis. Am J Pathol 149: 1553â1564.
Lustig B, Jerchow B, Sachs M, Weiler S, Pietsch T, Karsten U et al. (2002). Negative feedback loop of Wnt signaling through upregulation of conductin/axin2 in colorectal and liver tumors. Mol Cell Biol 22: 1184â1193.
Minoo P, Baker K, Goswami R, Chong G, Foulkes W, Ruszkiewicz A et al. (2006). Extensive DNA methylation in normal colorectal mucosa in hyperplastic polyposis. Gut 55: 1467â1474.
Mirabelli-Primdahl L, Gryfe R, Kim H, Millar A, Luceri C, Dale D et al. (1999). Beta-catenin mutations are specific for colorectal carcinomas with microsatellite instability but occur in endometrial carcinomas irrespective of mutator pathway. Cancer Res 59: 3346â3351.
Reya T, Clevers H . (2005). Wnt signalling in stem cells and cancer. Nature 434: 843â850.
Rottinger E, Besnardeau L, Lepage T . (2004). A Raf/MEK/ERK signaling pathway is required for development of the sea urchin embryo micromere lineage through phosphorylation of the transcription factor Ets. Development 131: 1075â1087.
Sancho E, Batlle E, Clevers H . (2003). Live and let die in the intestinal epithelium. Curr Opin Cell Biol 15: 763â770.
Sancho E, Batlle E, Clevers H . (2004). Signaling pathways in intestinal development and cancer. Annu Rev Cell Dev Biol 20: 695â723.
Takagi Y, Futamura M, Yamaguchi K, Aoki S, Takahashi T, Saji S . (2000). Alterations of the PPP2R1B gene located at 11q23 in human colorectal cancers. Gut 47: 268â271.
Wolkenhauer O, Sreenath SN, Wellstead P, Ullah M, Cho KH . (2005). A systems- and signal-oriented approach to intracellular dynamics. Biochem Soc Trans 33: 507â515.
Yan H, Dobbie Z, Gruber SB, Markowitz S, Romans K, Giardiello FM et al. (2002). Small changes in expression affect predisposition to tumorigenesis. Nat Genet 30: 25â26.
Yeung K, Seitz T, Li S, Janosch P, McFerran B, Kaiser C et al. (1999). Suppression of Raf-1 kinase activity and MAP kinase signalling by RKIP. Nature 401: 173â177.
Yun MS, Kim SE, Jeon SH, Lee JS, Choi KY . (2005). Both ERK and Wnt/beta-catenin pathways are involved in Wnt3a-induced proliferation. J Cell Sci 118: 313â322.
Acknowledgements
This work was supported by a Grant 2005-B0000002 from the Korea Bio-Hub Program of Korea Ministry of Commerce, Industry & Energy, by a grant from the Korea Ministry of Science and Technology (Korean Systems Biology Research Grant, M10503010001-05N030100111), by the 21C Frontier Microbial Genomics and Application Center Program, Ministry of Science & Technology (Grant MG05-0204-3-0), Republic of Korea, and by the European Union FP6 project âComputational Systems Biology of Cell Signallingâ (LSHG-CT-2004-512060) and Cancer Research UK. D Kim and K-H Cho were supported by the second stage Brain Korea 21 Project in 2006.
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Kim, D., Rath, O., Kolch, W. et al. A hidden oncogenic positive feedback loop caused by crosstalk between Wnt and ERK Pathways. Oncogene 26, 4571â4579 (2007). https://doi.org/10.1038/sj.onc.1210230
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DOI: https://doi.org/10.1038/sj.onc.1210230