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Intracellular signalling: sphingosine-1-phosphate branches out
1Marine Biological Association, The Laboratory, Citadel Hill, PL1 2PB, Plymouth, UK. cbr@mba.ac.uk
Current Biology : CB
|July 27, 2001
Summary
Sphingosine-1-phosphate, a key signaling molecule in animals, is now found to be involved in calcium signaling in yeast and plants. This suggests sphingosine-1-phosphate may be a universal signaling molecule across eukaryotes.
Area of Science:
- Biochemistry
- Cell Biology
- Molecular Biology
Background:
- Sphingosine-1-phosphate (S1P) is a well-established signaling molecule in animal cells.
- Its role in non-animal eukaryotes has been less understood.
Purpose of the Study:
- To investigate the presence and function of sphingosine-1-phosphate signaling in yeast and higher plants.
- To determine if S1P acts as a universal signaling molecule in eukaryotes.
Main Methods:
- Analysis of calcium (Ca2+) dependent signaling pathways.
- Investigating the involvement of sphingosine-1-phosphate in these pathways across different eukaryotic models.
Main Results:
- Evidence suggests sphingosine-1-phosphate participates in Ca2+-dependent signaling in yeast.
- Sphingosine-1-phosphate is also implicated in Ca2+-dependent signaling in higher plants.
- These findings indicate a conserved role for S1P in eukaryotic signaling.
Conclusions:
- Sphingosine-1-phosphate is likely a universal signaling molecule with diverse functions in eukaryotes.
- The involvement of S1P in calcium signaling highlights its broad biological significance.