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Articles

The BCBC features background and short reports of ongoing scientific investigations. We select primary research publications, relevant to beta cell biology, and write short synopses on these. Our articles focus on the fundamental advancements that the publications report on and provide a focused view of these.

Featured Article

Imaging the pancreatic vasculature in diabetes models - Mar 23, 2012

Molecule for Imaging Pancreatic Vasculature

The progression of both type 1 and type 2 diabetes is associated with changes in pancreatic islet vasculature and subsequent dysfunction.  Previous studies by Medarova et al., 2007 have used in vivo magnetic resonance imaging (MRI) to visualize the localization of the blood pool agent, PGC-GdDTPA-F (PGC-gadolinium diethlenetriminepentaacetic acid labeled with fluorescein), in areas of inflammation and altered vasculature in islets of mice with chemically induced diabetes.  In Medarova et al., 2011, the authors use the same agent, to assess changes in the morphology of islet vasculature in animal models of type 1 and type 2 diabetes.  It was found that the blood volume contrast agent could highlight changes in the blood volume and vascular permeability of diseased pancreatic islets that are characteristic of diabetic inflammation.  This work serves to characterize a compound with the ability to non-invasively visualize defects in pancreatic vascularization that are a hallmark of diabetes pathology and progression.

Primary references:

Medarova et al.  Noninvasive magnetic resonance imaging of microvascular changes in type I diabetes.  Diabetes.  56, 2677-2682 (2007).  PMID:  17682091

Medarova et al.  Imaging the pancreatic vasculature in diabetes models.  Diabetes Metab Res Rev.  27, 767-772 (2011).  PMID:  22069257

Other Articles

PDGF signalling controls age-dependent proliferation in pancreatic beta-cells - Mar 07, 2012

Specific control of pancreatic endocrine beta cell and delta cell mass by Class IIa Histone Deacetylases HDAC4, HDAC5, and HDAC9 - Jan 27, 2012

Context-specific alpha-to-beta cell reprogramming by forced Pdx1 expression - Nov 30, 2011

Bace2 is a beta cell-enriched protease that regulates pancreatic beta cell function and mass - Nov 21, 2011

Connective tissue growth factor acts within both endothelial cells and beta cells to promote proliferation of developing beta cells - Nov 10, 2011

Transcriptomes of the major human pancreatic cell types - Oct 10, 2011

A genetically engineered human pancreatic beta cell line exhibiting glucose-inducible insulin secretion - Sep 20, 2011

Nkx2.2 and Arx genetically interact to regulate pancreatic endocrine cell development and endocrine hormone expression - Sep 16, 2011

Cell-surface markers for the isolation of pancreatic cell types derived from human embryonic stem cells - Aug 17, 2011

Exploring pathways to generating beta cells: Transdifferentiation of alpha cells to beta cells following beta cell ablation in adult mice - Apr 23, 2010

Pax4 ectopic expression in the pancreas defines a pathway for beta cell generation in vivo. - Mar 18, 2010

Small Molecules Direct Embryonic Stem Cells towards Endoderm or Pancreatic Fate - Jun 29, 2009

Ectopic expression of Ngn3 transforms oval cells in the liver to neo-islets - Jun 22, 2009

ZnT8 (Slc30A8) is a new antigenic target in type 1 diabetes - Mar 31, 2009

Reprogramming adult mouse pancreatic exocrine cells to beta cells in vivo - Feb 10, 2009

Myt1 offsets Ngn's own negative feed-back mechanism to promote islet cell differentiation - Oct 28, 2008

Claudin-6: A Promising Global Marker of Definitive Endoderm - Feb 27, 2008

Generation of Beta Cells from Endogenous Progenitors in Injured Adult Mouse Pancreas - Feb 01, 2008

MafB is an activator of glucagon gene expression in alpha- and beta cells - Jun 12, 2006

APOCHIP - A Microarray Platform for Studying Beta Cell Apoptosis - Mar 09, 2006

Keystone Symposium 2006 - Report on Concurrent Islet Meetings - Mar 03, 2006

Ghrelin cells arise from Ngn3-expressing precursors - Oct 03, 2005

Report: The 2005 BCBC Kickoff Meeting - Sep 27, 2005

ISSCR: 2005 Annual Meeting Report - Jul 05, 2005

CITR - Collaborative Islet Transplant Registry - May 19, 2005

KLF11 is a glucose-inducible regulator of the insulin gene - Apr 25, 2005

A new ESC culture protocol for generating islet cells - Apr 04, 2005

HNF-4a regulates KATP channel-dependent insulin secretion in beta cells - Mar 17, 2005

Ghrelin cells fill the void - Mar 01, 2005

Keystone Symposium 2005: Molecular Regulation of Stem Cells - Mar 01, 2005

The Structure of Insulin - Dec 13, 2004

Regulation of Insulin Exocytosis by a Novel Islet-Specific microRNA - Dec 13, 2004

Pancreas-derived multipotent precursors - PMPs to the rescue - Nov 16, 2004

No adult supervision for beta cells? - Nov 09, 2004

Insulin - from secretion to action - Oct 13, 2004