Dally regulates Dpp morphogen gradient formation in the<i>Drosophila</i>wing

• Momoko Fujise

  Department of Biology, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan

• Satomi Takeo

  Department of Biology, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan

• Keisuke Kamimura

  Department of Biology, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan

• Takashi Matsuo

  Department of Biology, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan

• Toshiro Aigaki

  Department of Biology, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan

• Susumu Izumi

  Department of Biology, Tokyo Metropolitan University, Hachioji-shi, Tokyo 192-0397, Japan

• Hiroshi Nakato

  Department of Molecular and Cellular Biology, and Arizona Cancer Center,University of Arizona, Tucson, AZ 85724, USA

抄録

Decapentaplegic (Dpp), a Drosophila TGFβ/bone morphogenetic protein homolog, functions as a morphogen to specify cell fate along the anteroposterior axis of the wing. Dpp is a heparin-binding protein and Dpp signal transduction is potentiated by Dally, a cell-surface heparan sulfate proteoglycan, during assembly of several adult tissues. However, the molecular mechanism by which the Dpp morphogen gradient is established and maintained is poorly understood. We show evidence that Dally regulates both cellular responses to Dpp and the distribution of Dpp morphogen in tissues. In the developing wing, dally expression in the wing disc is controlled by the same molecular pathways that regulate expression of thickveins,which encodes a Dpp type I receptor. Elevated levels of Dally increase the sensitivity of cells to Dpp in a cell autonomous fashion. In addition,dally affects the shape of the Dpp ligand gradient as well as its activity gradient. We propose that Dally serves as a co-receptor for Dpp and contributes to shaping the Dpp morphogen gradient.

収録刊行物

• Development

  Development 130 (8), 1515-1522, 2003-04-15

  The Company of Biologists

キーワード

• Developmental Biology
• Molecular Biology

詳細情報

• CRID: 1360292618744039808
• NII論文ID: 30002332052
• NII書誌ID: AA10667805
• DOI: 10.1242/dev.00379
• ISSN: 14779129
• ISSN: 09501991
• Web Site: http://journals.biologists.com/dev/article-pdf/130/8/1515/1502788/1515.pdf
• データソース種別:
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  • CiNii Articles