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730017 
Journal Article 
Regulation of spontaneous intestinal tumorigenesis through the adaptor protein MyD88 
Rakoff-Nahoum, S; Medzhitov, R 
2007 
1 
Science
ISSN: 0036-8075
EISSN: 1095-9203 
317 
5834 
124-127 
English 
17615359 
Inflammation is increasingly recognized as an important component of tumorigenesis, although the mechanisms and pathways involved are not well understood. Tumor development is regulated by products of several modifier genes, but instructions for their tumor-specific expression are currently unknown. We show that the signaling through the adaptor protein MyD88 has a critical role in spontaneous tumor development in mice with heterozygous mutation in the adenomatous polyposis coli (APC) gene. We found that MyD88-dependent signaling controls the expression of several key modifier genes of intestinal tumorigenesis and has a critical role in both spontaneous and carcinogen-induced tumor development. This study thus reveals the important role of an innate immune signaling pathway in intestinal tumorigenesis.