Cyclicphosphatidicacid(cPA)isanaturallyoccurringanalogofthegrowthfactor-likephospholipidmediator,lysophosphatidicacid(LPA).Thesn-2hydroxygroupofCPAformsa5-memberedringwiththesn-3phosphate.cPAaffectsnumerouscellularfunctions,includinganti-mitogenicregulationofthecellcycle1,inductionofstressfiberformation2,inhibitionoftumorcellinvasionandmetastasis3,andregulationofdifferentiationandsurvivalofneuronalcells4.Interestingly,manyofthesecellularresponsescausedbycPAopposethoseofLPAdespitetheactivationofapparentlyoverlappingreceptorpopulations.
YoucanfindadditionalinformationoncPAatthefollowinglink:
LIPIDMAPSLipidomicsGateway
1.Murakami-Murofushi,K.,Kaji,K.,Kano,K.,Fukuda,M.,Shioda,M.,andMurofushi,H.(1993)Inhibitionofcellproliferationbyauniquelysophosphatidicacid,PHYLPA,isolatedfromPhysarumpolycephalum:signalingeventsofantiproliferativeactionbyPHYLPA.CellStruct.Funct.18:363–370.
2.Fischer,D.L.,Liliom,K.,Guo,H.,Nusser,N.,Virag,T.,Murakami-Murofushi,K.,Kobayashi,S.,Erickson,J.P.,Sun,G.,Miller,D.D.,andTigyi,G.(1998)Naturallyoccurringanalogsoflysophosphatidicacidelicitdifferentcellularresponsesthroughselectiveactivationofmultiplereceptorsubtypes. Mol.Pharmacol.54:979–988.
3.Mukai,M.,Imamura,F.,Ayaki,M.,Shinkai,K.,Iwasaki,T.,Murakami-Murofushi,K.,Murofushi,H.,Kobayashi,S.,Yamamoto,T.,Nakamura,H.,andAkedo,H.(1999)Inhibitionoftumorinvasionandmetastasisbyanovellysophosphatidicacid(cyclicLPA).Int.J.Cancer81:918–922.
4.Fujiwara,Y.,Sebok,A.,Meakin,S.,Kobayashi,T.,Murakami-Murofushi,K.,andTigyi,G.(2003)Cyclicphosphatidicacidelicitsneurotrophin-likeactionsinembryonichippocampalneurons.J.Neu
Rochem.87:1272–1283.