Journal
CLINICAL PHARMACOLOGY & THERAPEUTICS
Volume 82, Issue 4, Pages 441-447Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.clpt.6100325
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Funding
- NCI NIH HHS [CA95026, CA75123, R01 CA095026-04S1] Funding Source: Medline
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Colorectal carcinogenesis originates in the context of dysregulated epithelial cell homeostasis, wherein hyperproliferation, hypodifferentiation, metabolic reprogramming, and mesenchymal remodeling reflect recursive mutually reinforcing mechanisms contributing to progressive genomic instability. Although genotypic and phenotypic elements characterizing the terminal integration of these pathophysiological processes defining cancer are well enumerated, events initiating, coordinating, and sustaining this hierarchical maladaptive systems evolution remain elusive for most tumors. In the intestine, guanylyl cyclase C ( GCC) and its paracrine ligands organize and regulate the homeostatic integrity of the crypt - villus axis, forming a hormonal tumor suppressor signaling sequence, whose dysfunction defines the initiation of neoplastic transformation and creates a permissive niche for tumor progression.
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