• How Does Transforming Growth Factor beta Suppress Colorectal Tumor Development?

How Does Transforming Growth Factor beta Suppress Colorectal Tumor Development?

Researchers review the mechanisms by which loss of transforming growth factor beta (TGFB) proteins contribute to development and progression of colorectal cancer in the January 2017 issue of Gastroenterology. Development and progression of colorectal cancer involve loss of tumor suppressor proteins, including transforming growth factor beta (TGFB) family members. In colon

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  • What Gene Mutations Cause Familial Colorectal Cancers?

What Gene Mutations Cause Familial Colorectal Cancers?

Mutations in the DNA repair gene, FAN1, cause some inherited forms of colorectal cancer (CRC), researchers report in the September issue of Gastroenterology. Identification of another gene associated with this hereditary cancer will facilitate management of patients with family histories of cancer. Germline mutations in EPCAM, APC, MUTYH, POLE, POLD1, GREM1,

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  • Expert Panel Recommends Aspirin Therapy for Prevention of Colorectal Cancer

Expert Panel Recommends Aspirin Therapy for Prevention of Colorectal Cancer

For the first time, an expert panel has recommended aspirin therapy to prevent not only heart attacks but also colorectal cancer. The guideline for those at high risk of heart disease, published September 14 in a draft report from the US Preventive Services Task Force is the first time a major

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  • VEGF Signaling Prevents Senescence in Colorectal Tumors

VEGF Signaling Prevents Senescence in Colorectal Tumors

Vascular endothelial growth factor receptor-2 (VEGFR2) signaling prevents senescence of colorectal cancer cells by inactivating p21, researchers report in the July issue of Gastroenterology. Inactivation of this pathway correlates with survival of patients treated with anti-VEGF cancer drug bevacizumab. VEGF, a growth factor that has been well studied for its

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  • Author Q&A Series: H pylori-associated Gastric Cancer

Author Q&A Series: H pylori-associated Gastric Cancer

Gastric tumors and tissues from humans and mice accumulate somatic mutations in various genes in the gastric mucosa upon Helicobacter pylori infection, researchers report in the August issue of Gastroenterology. In the study, Takahiro Shimizu et al. show that increased cytidine deaminase activity in these tissues promotes the accumulation of these mutations and might

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  • Review: LGR5 and Intestinal Stem Cells

Review: LGR5 and Intestinal Stem Cells

Since the discovery of LGR5 as a marker of intestinal stem cells, we have learned a great deal about the intestinal crypt stem cell niche. In the August issue of Gastroenterology Bon-Kyoung Koo and Hans Clevers review the discovery of crypt base columnar cells as LGR5+ adult stem cells and

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How Can We Tell if Patients are Still at Risk for HCC after HCV Therapy?

For patients with chronic Hepatitis C virus infection, high levels of α-fetoprotein after therapy can identify those at risk for hepatocellular carcinoma (HCC), researchers report in the July issue of Clinical Gastroenterology and Hepatology. In persons with chronic HCV infection, lack of sustained virologic response (SVR) 24 weeks after the end

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