Inflated wings, tissue autolysis and early death in tissue inhibitor of metalloproteinases mutants of Drosophila

Eur J Cell Biol. 2000 Jul;79(7):495-501. doi: 10.1078/0171-9335-00072.

Abstract

In vertebrates, tissue inhibitors of metalloproteinases (TIMPs) play key roles in extracellular matrix (ECM) homeostasis and growth control. Deletion of the recently cloned Timp gene of Drosophila results in a subviable phenotype. Adult flies display inflated wings similar to integrin mutants, suffer from a bloated gut and progressive dissolution of internal tissues, and die prematurely. Our results demonstrate that the Timp gene product controls selective aspects of ECM function in Drosophila, and suggest that it is involved in cell adhesion/cell signaling pathways. Hence, Drosophila Timp mutants may prove useful as a model system for a wide variety of pathological conditions related to ECM dysregulation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abdomen / pathology
  • Animals
  • Blotting, Northern
  • Cell Adhesion
  • Crosses, Genetic
  • DNA Transposable Elements / genetics
  • Drosophila / genetics*
  • Extracellular Matrix / metabolism
  • Female
  • Gene Deletion
  • Genotype
  • Immunohistochemistry
  • In Situ Hybridization
  • Integrins / genetics*
  • Male
  • Models, Genetic
  • Mutagenesis, Site-Directed
  • Phenotype
  • Protein Binding
  • Signal Transduction
  • Synapsins / genetics
  • Time Factors
  • Tissue Inhibitor of Metalloproteinases / genetics*
  • Tissue Inhibitor of Metalloproteinases / physiology
  • Wings, Animal / physiology

Substances

  • DNA Transposable Elements
  • Integrins
  • Synapsins
  • Tissue Inhibitor of Metalloproteinases