Intestinal Cell News Volume 1.36 | Nov 27 2015

Cell Nonautonomous Activation of Flavin-Containing Monooxygenase Promotes Longevity and Health Span
Stabilization of the hypoxia-inducible factor 1 (HIF-1) increased life span and health span in nematodes through an unknown mechanism. The authors report that neuronal stabilization of HIF-1 mediates these effects in C. elegans through a cell nonautonomous signal to the intestine, which resulted in activation of the xenobiotic detoxification enzyme flavin-containing monooxygenase-2. [Science] Abstract

Liver X Receptor Regulates Triglyceride Absorption through Intestinal Downregulation of Scavenger Receptor Class B, Type 1
In Caco-2/TC7 cells and mice, intestinal activation of liver X receptor reduced production of chylomicron by a mechanism dependent on the apical localization of scavenger receptor class B, type 1. [Gastroenterology] Abstract

PRMT1-Mediated Methylation of the EGF Receptor Regulates Signaling and Cetuximab Response
Scientists determined that methylation at R198 and R200 of the EGFR extracellular domain by protein arginine methyltransferase 1 (PRMT1) enhances binding to EGF and subsequent receptor dimerization and signaling activation. [J Clin Invest] Full Article | Press Release

MicroRNA-22 Inhibits Tumor Growth and Metastasis in Gastric Cancer by Directly Targeting MMP14 and Snail
Investigators found that the expression of microRNA (miR)-22 was significantly reduced in clinical gastric cancer (GC) tissues compared with paired adjacent normal tissues, and was significantly correlated with a more aggressive phenotype of GC in patients, and low miR-22 expression correlated with poor overall survival. [Cell Death Dis] Full Article

Bile Acids Regulate Intestinal Cell Proliferation by Modulating EGFR and FXR Signaling
Scientists examined the effects of bile acids on intestinal epithelial cell proliferation and investigated the possible roles for epidermal growth factor receptor (EGFR) and farnesoid X receptor (FXR) in these effects. [Am J Physiol Gastrointest Liver Physiol] Abstract

Lgr5 Methylation in Cancer Stem Cell Differentiation and Prognosis-Prediction in Colorectal Cancer
Researchers investigated the methylation status within the leucine-rich-repeat-containing G-protein-coupled receptor 5 (lgr5) promoter and evaluated its relationship with cancer stem cells differentiation, prognosis for colorectal cancer, and its clinicopathological features. [PLoS One] Full Article

Hcrcn81 Promotes Cell Proliferation through Wnt Signaling Pathway in Colorectal Cancer
Scientists investigated the role of hcrcn81 gene in Wnt/β-catenin signaling pathway related to human colorectal cancer. [Med Oncol] Abstract

INTESTINAL STEM CELL & ORGANOID RESEARCH

Bidirectional Notch Signaling Regulates Drosophila Intestinal Stem Cell Multipotency
Investigators found that during enteroendocrine (ee) cell formation, the ee cell marker Prospero localizes to the basal side of dividing intestinal stem cells. [Science] Abstract

Agonists of the TRAIL Death Receptor DR5 Sensitize Intestinal Stem Cells to Chemotherapy-Induced Cell Death and Trigger Gastrointestinal Toxicity
Researchers showed that the combined administration of the DR5 agonistic monoclonal antibody and chemotherapy to wildtype mice triggered synergistic gastrointestinal toxicities that were associated with the death of Lgr5⁺ crypt base columnar stem cells in a p53- and DR5-dependent manner. [Cancer Res] Abstract

Visit our reviews page to see a complete list of reviews in the intestinal cell research field.

CPRIT Awards Faculty $19.6 Million for Research in Cervical, Breast, Lung, Colon, and Pediatric Cancers, and Cancer Biology
The Cancer Prevention and Research Institute of Texas (CPRIT) has awarded UT Southwestern Medical Center researchers more than $19.6 million in research grants to improve preventive, diagnostic, and therapeutic services relating to cervical, breast, lung, colon, and pediatric cancers, as well as to improve scientific understanding of cancer biology. [The University of Texas Southwestern Medical Center] Press Release

From our sponsor: Culturing hematopoietic stem and progenitor cells? Download the technical bulletin.

Food and Drug Administration (United States)

Center for Biologics Evaluation and Research (United States)

European Medicines Agency (European Union)

Medicines and Healthcare Products Regulatory Agency (United Kingdom)

Therapeutic Goods Administration (Australia)

Visit our events page to see a complete list of events in the intestinal cell research community.

Research Associate – Intestinal Cell Biology (STEMCELL Technologies Inc.)

Research Technician – Preclinical and Translational Research (Qu Biologics Inc.)

Faculty Position – Autoimmune Disease and Rheumatologic Inflammation (Cleveland Clinic)

Postdoctoral Fellowship – Innate Lymphoid Cell-Epithelial Cell Interactions in Intestinal Lymphoid Follicles (Linköping University)

PhD Studentships – Cancer Research (Institute of Cancer Research)

Computational Postdoctoral Associate – Inflammatory Bowel Disease (Icahn School of Medicine at Mount Sinai)

Postdoctoral Fellow – Immunology or Genetics (Research Center for Molecular Medicine of the Austrian Academy of Sciences)

Postdoctoral Associate – Epigenetics of Inflammatory Bowel Disease (Icahn School of Medicine at Mount Sinai)

Open Group Leader Position – Cancer Research (Oslo University Hospital)

Postdoctoral Research Fellow – Ex Vivo Tumor Organoid Models (Fred Hutchinson Cancer Research Center)

Recruit Top Talent: Reach more than 60,000 potential candidates by posting your organization’s career opportunities on the Connexon Creative Job Board at no cost.