18:1 Lyso PA
1-oleoyl-2-hydroxy-sn-glycero-3-phosphate (sodium salt)
Biological responses to LPA
- Cell Proliferation
- Inhibition of differentiation (neuroblastoma cells, myoblasts)
- Platelet aggregation
- Smooth muscle contraction
- Neurotransmitter release
- Stress fibre formation/cell rounding/neurite retraction
- Cell-surface-fibronectin binding
- Tumor cell invasion
- Chemotaxis (dictyostelium amoebae)
- Cl--mediated membrane depolarization (fibroblasts)
- Inhibition of connexin 43 based cell-cell communication
- Increased tight junction permeability (brain endothelial cells)
Note: The bioactivity of LPA appears to require long (i.e., C16 to C18) acyl carbon chains of the type usually found associated with membrane lipids although optimum requirements for a single type of acyl carbon chain are not universal. The bioactivity decreases with shorter chain length. In serum, oleoyl and palmitoyl fatty acid containing LPA are the predominant species.