Cited by 977Hippo pathway signaling and YAP/TAZDevelopmental Biology and Gene RegulationProtein Kinase Regulation and GTPase Signaling

The Drosophila tumor suppressor gene warts encodes a homolog of human myotonic dystrophy kinase and is required for the control of cell shape and proliferation.

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Justice, R W, Zilian, O, Woods, D F, Noll, M, Bryant, P J·1995·Genes & Development

Abstract

Homozygous loss of the warts (wts) gene of Drosophila, caused by mitotic recombination in somatic cells, leads to the formation of cell clones that are fragmented, rounded, and greatly overgrown compared with normal controls. Therefore, the gene is required for the control of the amount and direction of cell proliferation as well as for normal morphogenesis. The absence of wts function also results in apical hypertrophy of imaginal disc epithelial cells. Secretion of cuticle over and between the domed apical surfaces of these cells leads to a honeycomb-like structure and gives the superficial wart-like phenotype of mitotic clones on the adult. One wts allele allows survival of homozygotes to the late larval stage, and these larvae show extensive imaginal disc overgrowth. Because of the excess growth and abnormalities of differentiation that follow homozygous loss, we consider wts to be a tumor suppressor gene. The wts gene is defined by the breakpoints of overlapping deficiencies in the right telomeric region of chromosome 3, region 100A, and by lethal P-element insertions and excisions. It encodes a protein kinase that is most similar to human myotonic dystrophy kinase, the Neurospora cot-1 protein kinase, two cell-cycle regulated kinases of yeast, and several putative kinases from plants. These proteins define a new subfamily of protein kinases that are closely related to but distinct from the cyclic AMP-dependent kinases. Although myotonic dystrophy is defined by a neuromuscular disorder, it is sometimes associated with multiple pilomatrixomas, which are otherwise rare epithelial tumors, and with other tumors including neurofibromas and parathyroid adenomas. Our results raise the possibility that homozygous loss of the myotonic dystrophy kinase may contribute to the development of these tumors.

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Research works printed but not linked: 3

  1. --. 1987. Experimental and genetic analysis of growth and cell proliferation in Drosophila imaginal discs. In Genetic regulation of development (ed. W.F. Loomis), pp. 339-372.
  2. M.A. Innis, D.H. Gelfand, J.J. Sninsky, and T.J. White), pp. 28-38. Academic Press, San Diego, CA.
  3. Pirrotta, V. 1986. Cloning Drosophila genes. In Drosophila: A practical approach (ed. D.B. Roberts), pp. 83-110. IRL Press, Oxford, UK.

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Authors
Justice, R. W., Zilian, O., Woods, D. F., Noll, M., & Bryant, P. J.
Affiliations
University of California, Irvine (US)
Venue
Genes & Development
Published
1995-03-01
Volume
9
Issue
5
Pages
534-546
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2099072529
Cited by
977
References
62
Citations by year
2026: 30 · 2025: 37 · 2024: 39 · 2023: 35 · 2022: 47 · 2021: 76 · 2020: 71 · 2019: 43 · 2018: 66 · 2017: 52 · 2016: 35 · 2015: 40 · 2014: 40 · 2013: 47 · 2012: 39
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of California, Irvine
  • National Cancer Institute (CA 09338)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
Keywords
tumor suppressor, Drosophila, protein kinases, cell proliferation, cell shape, morphogenesis, cuticle secretion, pilomatrixoma, neurofibroma, parathyroid adenoma, chromosome 3, cell cycle kinases
MeSH terms
Amino Acid Sequence, Animals, Base Sequence, Cell Division, Cells, Cultured, Chromosome Mapping, Cloning, Molecular, Drosophila, Humans, Molecular Sequence Data, Protein Kinases, Transcription, Genetic, Genes, Tumor Suppressor, Mutagenesis, Genes, Insect, Protein Serine-Threonine Kinases, Sequence Homology, Amino Acid, Sequence Analysis, DNA, Drosophila Proteins, Cell Size, Myotonin-Protein Kinase

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