0000000000024031

AUTHOR

Christos Tzaferis

showing 2 related works from this author

Innate Sensing by Mesenchymal TLR4/MyD88 Signals Promotes Spontaneous Intestinal Tumorigenesis

2018

MyD88, an adaptor molecule downstream of innate pathways, plays a significant tumor-promoting role in sporadic intestinal carcinogenesis, which is dependent on its function in the stroma. Here, we show that deletion of MyD88 in intestinal mesenchymal cells (IMCs) significantly reduces Apc-mediated intestinal tumorigenesis. This phenotype is associated with decreased epithelial cell proliferation, altered inflammatory and tumorigenic immune cell infiltration, and modified gene expression similar to complete MyD88 knockout mice. Genetic deletion of TLR4, but not IL1R, in IMCs led to altered molecular profiles and reduction of intestinal tumors similar to the MyD88 deficiency. Ex vivo analysis…

StromaMesenchymal stem cellKnockout mouseGene expressionmedicineTLR4BiologyCarcinogenesismedicine.disease_causePhenotypeEx vivoCell biologySSRN Electronic Journal
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Innate Sensing through Mesenchymal TLR4/MyD88 Signals Promotes Spontaneous Intestinal Tumorigenesis

2019

Summary MyD88, an adaptor molecule downstream of innate pathways, plays a significant tumor-promoting role in sporadic intestinal carcinogenesis of the Apcmin/+ model, which carries a mutation in the Apc gene. Here, we show that deletion of MyD88 in intestinal mesenchymal cells (IMCs) significantly reduces tumorigenesis in this model. This phenotype is associated with decreased epithelial cell proliferation, altered inflammatory and tumorigenic immune cell infiltration, and modified gene expression similar to complete MyD88 knockout mice. Genetic deletion of TLR4, but not interleukin-1 receptor (IL-1R), in IMCs led to altered molecular profiles and reduction of intestinal tumors similar to …

0301 basic medicineCarcinogenesisBiologymedicine.disease_causeArticleGeneral Biochemistry Genetics and Molecular BiologyExtracellular matrixMice03 medical and health sciences0302 clinical medicinemedicinetumor microenvironmentAnimalsHumansReceptorinnate immunityTumor microenvironmentInnate immune systemMesenchymal stem cellCell biologyIntestinesToll-Like Receptor 4030104 developmental biologyMyeloid Differentiation Factor 88Knockout mouseTLR4Carcinogenesiscancer-associated fibroblasts030217 neurology & neurosurgerySignal Transduction
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