Intercellular communication via intracellular calcium oscillations.

Area of Science:

• Cellular and Molecular Biology
• Biophysics
• Theoretical Biology

Background:

• Intercellular communication is crucial for biological processes.
• Calcium oscillations play a key role in cell signaling.
• Understanding the dynamics of cell-to-cell signaling is essential.

Purpose of the Study:

• To model intercellular communication using a simplified two-cell system.
• To investigate the phenomenon of phase-locked regimes in coupled cells.
• To explore the impact of varying oscillation frequencies on cellular responses.

Main Methods:

• Developed a simple mathematical model of two coupled cells (donor and sensor).
• Incorporated a calcium-induced calcium release mechanism within each cell.
• Coupled cells by making the sensor cell's input proportional to the donor cell's output.

Main Results:

• Observed a

Conclusions:

• The model demonstrates that varying donor cell oscillation frequency leads to predictable phase-locked responses in the sensor cell.
• Stochastic modeling confirms that phase locking is robust even with realistic cell volumes.
• This provides a framework for understanding complex intercellular communication dynamics.