Drosophila myc Regulates Cellular Growth during Development
Abstract
Transcription factors of the Myc proto-oncogene family promote cell division, but how they do this is poorly understood. Here we address the functions of Drosophila Myc (dMyc) during development. Using mosaic analysis in the fly wing, we show that loss of dMyc retards cellular growth (accumulation of cell mass) and reduces cell size, whereas dMyc overproduction increases growth rates and cell size. dMyc-induced growth promotes G1/S progression but fails to accelerate cell division because G2/M progression is independently controlled by Cdc25/String. We also show that the secreted signal Wingless patterns growth in the wing primordium by modulating dMyc expression. Our results indicate that dMyc links patterning signals to cell division by regulating primary targets involved in cellular growth and metabolism.
Additional Information
© 1999 Cell Press. Received 9 June 1999, Revised 11 August 1999. We thank members of the Edgar and Eisenman labs for discussions during the course of the work; S. Parkhurst for advice and resources; A. de la Cruz, P. F. Cheng, A. Berger, L. Caldwell, and K. Seidel for technical assistance; and M. Groudine, E. Hafen, T. Neufeld, and J. Roberts for comments on the manuscript. Work in the Edgar lab is supported by the National Institutes of Health, and support for the Eisenman lab comes from the National Cancer Institute. L. A. J. was supported by NIH funding to G. Schubiger and P. G. by the Swiss National Science Foundation. B. A. E. is a Rita Allen Scholar, and R. N. E. is a Research Professor of the American Cancer Society.Additional details
- Eprint ID
- 102566
- Resolver ID
- CaltechAUTHORS:20200415-141031630
- NIH
- National Cancer Institute
- Swiss National Science Foundation (SNSF)
- Rita Allen Foundation
- American Cancer Society
- Created
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2020-04-15Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field