PMID- 21385708 OWN - NLM STAT- MEDLINE DCOM- 20110323 LR - 20151119 IS - 1095-9203 (Electronic) IS - 0036-8075 (Linking) VI - 331 IP - 6021 DP - 2011 Mar 4 TI - Dynamics of Dpp signaling and proliferation control. PG - 1154-9 LID - 10.1126/science.1200037 [doi] AB - Morphogens, such as Decapentaplegic (Dpp) in the fly imaginal discs, form graded concentration profiles that control patterning and growth of developing organs. In the imaginal discs, proliferative growth is homogeneous in space, posing the conundrum of how morphogen concentration gradients could control position-independent growth. To understand the mechanism of proliferation control by the Dpp gradient, we quantified Dpp concentration and signaling levels during wing disc growth. Both Dpp concentration and signaling gradients scale with tissue size during development. On average, cells divide when Dpp signaling levels have increased by 50%. Our observations are consistent with a growth control mechanism based on temporal changes of cellular morphogen signaling levels. For a scaling gradient, this mechanism generates position-independent growth rates. FAU - Wartlick, O AU - Wartlick O AD - Department of Biochemistry, Faculty of Sciences, Geneva University, 30 Quai Ernest-Ansermet, 1211 Geneva, Switzerland. FAU - Mumcu, P AU - Mumcu P FAU - Kicheva, A AU - Kicheva A FAU - Bittig, T AU - Bittig T FAU - Seum, C AU - Seum C FAU - Julicher, F AU - Julicher F FAU - Gonzalez-Gaitan, M AU - Gonzalez-Gaitan M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Science JT - Science (New York, N.Y.) JID - 0404511 RN - 0 (Drosophila Proteins) RN - 0 (Intercellular Signaling Peptides and Proteins) RN - 0 (dpp protein, Drosophila) SB - IM CIN - Science. 2011 Mar 4;331(6021):1141-2. PMID: 21385701 CIN - Science. 2012 Jan 27;335(6067):401; author reply 401. PMID: 22282789 MH - Animals MH - Cell Cycle MH - *Cell Proliferation MH - Computer Simulation MH - Drosophila Proteins/*metabolism MH - Drosophila melanogaster/cytology/genetics/*growth & development/*metabolism MH - Intercellular Signaling Peptides and Proteins/*metabolism MH - Models, Biological MH - Morphogenesis MH - Mutation MH - *Signal Transduction MH - Wings, Animal/anatomy & histology/cytology/*growth & development/*metabolism EDAT- 2011/03/10 06:00 MHDA- 2011/03/24 06:00 CRDT- 2011/03/10 06:00 PHST- 2011/03/10 06:00 [entrez] PHST- 2011/03/10 06:00 [pubmed] PHST- 2011/03/24 06:00 [medline] AID - 331/6021/1154 [pii] AID - 10.1126/science.1200037 [doi] PST - ppublish SO - Science. 2011 Mar 4;331(6021):1154-9. doi: 10.1126/science.1200037.