Dataset Information

Lifestyle and Dietary Pattern in Relation to Precursor Lesions of Colorectal Cancer

ABSTRACT: The association between lifestyle and dietary pattern with precursor lesions of colorectal cancer is still unclear. This study is conduced in Jinhua, a city with a high prevalence of colorectal cancer in China, to assess relations between precursor lesions of colorectal cancer and lifestyle and dietary factors.

DISEASE(S): Colorectal Neoplasms,Polyps

PROVIDER: 2287045 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:Analysis of wildtype C. elegans (N2) and pcca-1(ok2282) and metr-1(ok521) mutants fed Comamonas DA1877 Expression profiles are tailored according to dietary input. However, the networks that control dietary responses remain largely uncharacterized. Here, we combine forward and reverse genetic screens to delineate a network of 184 genes that affect the C. elegans dietary response to Comamonas DA1877 bacteria. We find that perturbation of a mitochondrial network comprised of enzymes involved in amino acid metabolism and the TCA cycle affects the dietary response. In humans, mutations in the corresponding genes cause inborn diseases of amino acid metabolism, most of which are treated by dietary intervention. We identify several TFs that mediate the changes in gene expression upon metabolic network perturbations. Altogether, our findings unveil a transcriptional response system that is poised to sense dietary cues and metabolic imbalances, illustrating extensive communication between metabolic networks in the mitochondria and gene regulatory networks in the nucleus. Expression profiles are tailored according to dietary input. However, the networks that control dietary responses remain largely uncharacterized. Here, we combine forward and reverse genetic screens to delineate a network of 184 genes that affect the C. elegans dietary response to Comamonas DA1877 bacteria. We find that perturbation of a mitochondrial network comprised of enzymes involved in amino acid metabolism and the TCA cycle affects the dietary response. In humans, mutations in the corresponding genes cause inborn diseases of amino acid metabolism, most of which are treated by dietary intervention. We identify several TFs that mediate the changes in gene expression upon metabolic network perturbations. Altogether, our findings unveil a transcriptional response system that is poised to sense dietary cues and metabolic imbalances, illustrating extensive communication between metabolic networks in the mitochondria and gene regulatory networks in the nucleus.

Dataset Information

Lifestyle and Dietary Pattern in Relation to Precursor Lesions of Colorectal Cancer

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