Ablation of islet endocrine cells by targeted expression of hormone-promoter-driven toxigenes

Pedro Luis Herrera, Joaquin Huarte, Romain Zufferey, Anthony Nichols, Bernadette Mermillod, Jacques Philippe, Pedro Muniesa, Francesca Sanvito, Lelio Orci, Jean Dominique Vassalli

Research output: Contribution to journalArticlepeer-review


Ontogenic relationships between the different types of endocrine cells in the islets of Langerhans were explored by generating transgenic mouse embryos in which cells transcribing the glucagon, insulin, or pancreatic polypeptide genes were destroyed through the promoter-targeted expression of the diphtheria toxin A chain. Embryos lacking glucagon- or insulin-containing cells did not exhibit alterations in the development of the nontargeted islet cell types, whereas embryos lacking pancreatic polypeptide gene-expressing cells also lacked pancreatic insulin- and somatostatin-containing cells. These results show that neither glucagon nor insulin gene-expressing cells are essential for the differentiation of the other islet endocrine-cell types. These results also suggest that pancreatic polypeptide gene-expressing cells are indispensable for the differentiation of islet β and δ cells because the former produce a necessary paracrine or endocrine factor and/or operate through a cell-lineage relationship.

Original languageEnglish
Pages (from-to)12999-13003
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number26
Publication statusPublished - Dec 20 1994


  • Cell lineage
  • Diphtheria toxin
  • Pancreas
  • Pancreatic polypeptide-fold family
  • Transgenic

ASJC Scopus subject areas

  • General
  • Genetics

Fingerprint Dive into the research topics of 'Ablation of islet endocrine cells by targeted expression of hormone-promoter-driven toxigenes'. Together they form a unique fingerprint.

Cite this