My NCBI | Sign In
RSS Settings
  • Search:

Display Settings:

Format

Send to:

Choose Destination

    Diabetes. 2004 Aug;53(8):2024-33.

    Inhibition of activin signaling induces pancreatic epithelial cell expansion and diminishes terminal differentiation of pancreatic beta-cells.

    Zhang YQ, Cleary MM, Si Y, Liu G, Eto Y, Kritzik M, Dabernat S, Kayali AG, Sarvetnick N.

    Department of Immunology, The Scripps Research Institute, La Jolla, California 92037, USA.

    Activins regulate the growth and differentiation of a variety of cells. During pancreatic islet development, activins are required for the specialization of pancreatic precursors from the gut endoderm during midgestation. In this study, we probed the role of activin signaling during pancreatic islet cell development and regeneration. Indeed, we found that both activins and activin receptors are upregulated in duct epithelial cells during islet differentiation. Interestingly, the expression of endogenous cellular inhibitors of activin signaling, follistatin and Cripto, were also found to be augmented. Inhibition of activins significantly enhanced survival and expansion of pancreatic epithelial cells but decreased the numbers of differentiated beta-cells. Our results suggest that the homeostasis of growth and terminal differentiation requires a precise context-dependent regulation of activin signaling. Follistatin participates in this process by promoting expansion of precursor cells during pancreas growth.

    PMID: 15277382 [PubMed - indexed for MEDLINE]

    Publication Types, MeSH Terms, Substances, Grant Support

    Publication Types:

    MeSH Terms:

    Substances:

    Grant Support:

    LinkOut - more resources

    Full Text Sources:

    Molecular Biology Databases:

    Miscellaneous:

    Supplemental Content

    Click here to read

    Related articles

    Cited by 2 PubMed Central articles

    All links from this record

    • Related Articles

      Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.

    • GENSAT

      Gene Expression Nervous System Atlas (GENSAT) records that cite the current articles. References on GENSAT records are provided by GENSAT investigators, and also include references on the corresponding NCBI Gene record.

    • Gene

      Gene records that cite the current articles. Citations in Gene are added manually by NCBI or imported from outside public resources.

    • HomoloGene

      HomoloGene clusters of homologous genes and sequences that cite the current articles. These are references on the Gene and sequence records in the HomoloGene entry.

    • Nucleotide (RefSeq)

      NCBI nucleotide Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.

    • Nucleotide (Weighted)

      Nucleotide records associated with the current articles through the Gene database. These are the related sequences on the Gene record that are added manually by NCBI.

    • Protein (RefSeq)

      NCBI protein Reference Sequences (RefSeqs) that are cited in the current articles, included in the corresponding Gene Reference into Function, or that include the PubMed articles as references.

    • Protein (Weighted)

      Protein records associated with the current articles through related Gene database records. These are the related sequences on the Gene record that are added manually by NCBI.

    • Substance (MeSH Keyword)

      PubChem chemical substance (submitted) records that are classified under the same Medical Subject Headings (MeSH) controlled vocabulary as the current articles.

    • Taxonomy via GenBank

      Taxonomy records associated with the current articles through taxonomic information on related molecular database records (Nucleotide, Protein, Gene, SNP, Structure).

    • UniGene

      UniGene clusters of expressed sequences that are associated with the current articles through references on the clustered sequence records and related Gene records.

    • GEO Profiles

      Gene Expression Omnibus (GEO) Profiles of molecular abundance data. The current articles are references on the Gene record associated with the GEO profile.

    • Cited in PMC

      Full-text articles in the PubMed Central Database that cite the current articles.

    Recent activity