Journal
NEW JOURNAL OF PHYSICS
Volume 17, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1367-2630/17/5/055021
Keywords
notch signaling; multistability; jagged; sender/receiver; cell-cell communication; pattern formation
Categories
Funding
- National Science Foundation (NSF) [PHY-1427654, MCB-1214457]
- Cancer Prevention and Research Institute of Texas (CPRIT)
- FAPESP Grant [2013/14438-8]
- Cancer Prevention and Research Institute of Texas
- NSF [CHE 1265929, 1152344]
- Welch foundation Grant [C1570]
- Tauber Family Funds
- Maguy-Glass Chair in Physics of Complex Systems
- Keck Center for Interdisciplinary Bioscience Training of the Gulf Coast Consortia CPRIT Grant [RP140113]
- Direct For Mathematical & Physical Scien
- Division Of Physics [1427654] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1152344] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1265929] Funding Source: National Science Foundation
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Notch pathway is an evolutionarily conserved cell-cell communication mechanism governing cell-fate during development and tumor progression. It is activated when Notch receptor of one cell binds to either of its ligand-Delta or Jagged-of another cell. Notch-Delta (ND) signaling forms a two-way switch, and two cells interacting via ND signaling adopt different fates-Sender (high ligand, low receptor) and Receiver (low ligand, high receptor). Notch-Delta-Jagged signaling (NDJ) behaves as a three-way switch and enables an additional fate-hybrid Sender/Receiver (S/R) (medium ligand, medium receptor). Here, by extending our framework of NDJ signaling for a two-cell system, we show that higher production rate of Jagged, but not that of Delta, expands the range of parameters for which both cells attain the hybrid S/R state. Conversely, glycosyltransferase Fringe and cis-inhibition reduces this range of conditions, and reduces the relative stability of the hybrid S/R state, thereby promoting cell-fate divergence and consequently lateral inhibition-based patterns. Lastly, soluble Jagged drives the cells to attain the hybrid S/R state, and soluble Delta drives them to be Receivers. We also discuss the critical role of hybrid S/R state in promoting cancer metastasis by enabling collective cell migration and expanding cancer stem cell (CSC) population.
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