Abstract
We have undertaken a study to characterize the lipolytic pathway responsible for the generation of free fatty acids (FFA) during Fas/CD95-induced apoptosis in Jurkat cells. It was initially shown that the cellular lipid fraction that suffered the major quantitative decrease during Fas-induced apoptosis was that of phosphatidylcholine (PC). In addition, the secretion of palmitic acid-derived FFA was largely prevented by D609, an inhibitor of PC-specific phospholipase C (PC-PLC) and also by the diacylglycerol lipase (DAGL) inhibitor RHC-80267, suggesting that the secretion of these FFA during Fas-induced apoptosis is mediated by the generation of DAG by a PC-PLC activity and, sequentially, by a 1-DAGL activity which generates the FFA from its sn-1 position. The endocannabinoid 2-arachidonoyl glycerol (2-AG) should be generated as a sub-product of this pathway, but it did not accumulate inside the cells nor was secreted into the supernatant. Interestingly, the complete inhibition of free AA secretion during Fas-induced apoptosis was only achieved by using the AA trifluoromethylketone, which not only inhibits all types of phospholipase-A2 (PLA2) activities, but also the described lytic activities on 2-AG. Using a combination of RHC-80267 and the iPLA2-specific inhibitor bromoenol lactone, it was shown that the DAGL pathway also cooperates with iPLA2 in the generation of free arachidonate.
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Abbreviations
- AA:
-
arachidonic acid
- AAtfmk:
-
arachidonoyl trifluoromethylketone
- 2-AG:
-
2-arachidonoyl-glycerol
- BEL:
-
bromoenol lactone
- CH:
-
cholesterol
- CE:
-
cholesteryl esters
- Cer:
-
ceramide
- CL:
-
cardiolipin
- c-PLA2:
-
cytosolic phospholipase-A2
- DAG:
-
diacylglycerol
- DAGL:
-
diacylglycerol lipase
- D609:
-
Tricyclodecan-9-yl xanthate potassium
- FAAH:
-
fatty acid amide hydrolase
- FFA:
-
free fatty acids
- i-PLA2:
-
Ca++-independent phospholipase-A2
- LPC:
-
lysophosphatidylcholine
- mAb:
-
monoclonal antibody
- MAG:
-
monoacylglycerol
- MAGL:
-
monoacylglycerol lipase
- MTT:
-
3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide
- PA:
-
palmitic acid
- PC:
-
phosphatidylcholine
- PC-PLC:
-
phosphatidylcholine-specific phospholipase C
- PE:
-
phosphatidylethanolamine
- PI:
-
phosphatidylinositol
- PL:
-
phospholipids
- PS:
-
phosphatidylserine
- RHC:
-
1,6-bis (cyclohexyloximinocarbonylamino) hexane
- SM:
-
sphingomyelin
- SMase:
-
sphingomyelinase
- TAG:
-
triacylglycerol
References
Neale ML, Fiera RA, Matthews, N. Involvement of phospholipase A2 activation in tumour cell killing by tumour necrosis factor. Immunology 1988; 64: 81–85.
Atsumi GI, Tajima M, Hadano A, Nakatani Y, Murakami M, Kudo I. Fas-induced arachidonic acid release is mediated by Ca2+-independent, but not cytosolic phospholipase A2, which undergoes protolytic inactivation. J Biol Chem 1998; 273: 13870–13877.
Enari M, Hug H, Hayakawa M, Ito F, Nishimura Y, Nagata S. Different apoptotic pathways by Fas and the tumor-necrosis-factor receptor. Cytosolic phospholipase A2 is not involved in Fas-mediated apoptosis. Eur J Biochem 1996; 236: 533–538.
Koren HS, Ferber E, Fischer H. Changes in phospholipid metabolism of a tumor target cell during a cell-mediated cytotoxic reaction. Biochim Biophys Acta 1971; 231: 520–526.
Richieri GV, Kleinfeld AM. Free fatty acids are produced in and secreted from target cells very early in cytotoxic T lymphocyte-mediated killing. J Immunol 1991; 147: 2809–2815.
Brekke OL, Sagen E, Bjerve KS. Specificity of endogenous fatty acid release during TNF-induced apoptosis in WEHI 164 fibrosarcoma cells. J Lipid Res 1999; 40: 2223–2233.
Iturralde M, Gamen S, Pardo, et al. Saturated free fatty acids release and intracellular ceramide generation during apoptosis induction are closely related processes. Biochim Biophys Acta 2003; 1634: 40–51.
Nagata S. Apoptosis by death factor. Cell 1997; 88: 355–365.
Nicholson DW, Thornberry NA. Caspases : Killer proteases. Trends Biochem Sci 1997; 22: 299–306.
Cifone MG, De Maria R, Roncaioli, et al. Apoptotic signaling through CD95 (Fas/Apo-1) activates an acidic sphingomyelinase. J Exp Med 1993; 177: 1547–1552.
Gamen S, Marzo I, Anel A, Piñeiro A, Naval J. CPP32 inhibition prevents Fas-induced ceramide generation and apoptosis in human cells. FEBS Lett 1996; 390: 233–237.
Tepper AD, Boesen-de Cock JGR, de Vries E, Borst J, van Blitterswijk WJ. CD95/Fas-induced ceramide formation proceeds with slow kinetics and is not blocked by caspase-3/CPP32 inhibition. J Biol Chem 1997; 272: 24308–24312.
Tepper AD, de Vries E, van Blitterswijk WJ, Borst J. Ordering of ceramide formation, caspase activation, and mitochondrial changes during CD95- and DNA damage-induced apoptosis. J. Clin Invest 1999; 103: 971–978.
Tepper AD, Ruurs P, Wiedmer T, Sims PJ, Borst J, van Blitterswijk WJ. Sphingomyelin hydrolysis to ceramide during the execution phase of apoptosis results from phospholipid scrambling and alters cell-surface morphology. J Cell Biol 2000; 150: 155–164.
Savill J, Fadok V. Corpse clearance defines the meaning of cell death. Nature 2000; 407: 784–788.
Cauwels A, Janssen B, Wayetens A, Cuvelier C, Brouckaert P. Caspase inhibition causes hyperacute TNF-induced shock via oxidative stress and PLA2. Nature Immunol 2003; 4: 387–393.
Adam-Klages S, Schwander R, Lüschen S, Ussat S, Kreder D, Krönke M. Caspase-mediated inhibition of human cytosolic phospholipase A2 during apoptosis. J Immunol 1998; 161: 5687–5694.
Atsumi GI, Murakami M, Kojima K, Hadano A, Tajima M, Kudo I. Distinct roles of two intracellular phospholipase A2 in fatty acid release in the cell death pathway. J Biol Chem 2000; 275: 18248–18258.
Lauber K, Bohn E, Kröber, et al. Apoptotic cells induce migration of phagocytic cells induce migration of phagocytes via caspase-3-mediated release of a lipid attraction signal. Cell 2003; 113: 717–730.
Müller-Decker K. Interruption of TPA-induced signals by an antiviral and antitumoral xanthate compound : Inhibition of a phospholipase C-type reaction. Biochem Biophys Res Commun 1989; 162: 198–205.
Schütze S, Potthoff K, Machleidt T, Berkovic D, Wiegmann K, Krönke M. TNF activates NF-κB by phosphatidylcholine-specific phospholipase C-induced “acidic” sphingomyelin breakdown. Cell 1992; 71: 765–776.
Stella N, Schweitzer P, Piomelli D. A second endogenous cannabinoid that modulates long-term potentiation. Nature 1997; 388: 773–778.
Sutherland C, Amin D. Relative activities of rat and dog platelet phospholipase A2 and diglyceride lipase. Selective inhibition of diglyceride lipase by RHC 80267. J Biol Chem 1982; 257: 14006–14010.
Ackermann EJ, Conde-Frieboes K, Dennis EA. Inhibition of macrophage Ca2+-independent phospholipase A2 by bromoenol lactone and trifluoromethyl ketones. J Biol Chem 1995; 270: 445–450.
Di Marzo V, Bisogno T, De Petrocellis, et al. Biosynthesis and inactivation of the endocannabinoid 2-arachidonoylglycerol in circulating and tumoral macrophages. Eur J Biochem 1999; 264: 258–267.
Cabanillas JA, Pacheco-Castro A, Zapata, et al. T cell transformation with Herpesvirus saimiri : A tool for primary immunodeficiencies research. Recent Res Devel Immunology 2002; 4: 382–394.
Alley MC, Scudiero DA, Monks, et al. Sensibility of drug screening with panels of human tumor cell lines using microculture tetrazolium assay. Cancer Res 1988; 46: 589–601.
Anel A, Buferne M, Boyer C, Schmitt-Verhulst AM, Golstein P. T cell receptor-induced Fas ligand expression in cytotoxic T lymphocyte clones is blocked by protein tyrosine kinase inhibitors and cyclosporin. A Eur J Immunol 1994; 24: 2469–2476.
Pardo J, Balkow S, Anel A, Simon MM. The differential contribution of granzyme A and granzyme B in CTL-mediated apoptosis is determined by the quality of target cells. Eur J Immunol 2002; 32: 1980–1985.
Anel A, Naval J, Desportes P, Gonzalez B, Uriel J, Piñeiro A. Increased cytotoxicity of polyunsaturated fatty acids on human tumoral B and T-cell lines compared with normal lymphocytes. Leukemia 1992; 6: 680–688.
Jacobsson SO, Wallin T, Fowler CJ. Inhibition of Rat C6 Glioma Cell Proliferation by Endogenous and Synthetic Cannabinoids. Relative Involvement of Cannabinoid and Vanilloid Receptors. J Pharmacol Exp Ther 2001; 299: 951–959.
Anel A, Naval J, González, et al. Fatty acid metabolism in human lymphocytes. I. Time-course changes in fatty acid composition and membrane fluidity during blastic transformation of peripheral blood lymphocytes. Biochim Biophys Acta 1990; 1044: 323–331.
Zhang J, Driscoll TA, Hannun YA, Obeid LM. Regulation of membrane release in apoptosis. Biochem J 1998; 334: 479–485.
Anel A, Gamen S, Alava MA, Schmitt-Verhulst AM, Piñeiro A, Naval J. Inhibition of CPP32-like proteases prevents granzyme B- and Fas-, but not granzyme A-based cytotoxicity exerted by CTL clones. J Immunol 1997; 158: 1999–2006.
Bisogno T, Sepe N, Melck D, Maurelli S, De Petrocellis L, Di Marzo V. Biosynthesis, release and degradation of the novel endogenous cannabimimetic metabolite 2-arachidonoylglycerol in mouse neuroblastoma cells. Biochem J 1997; 322: 671–677.
Di Marzo V, De Petrocellis L, Sugiura T, Waku K. Potential Biosynthetic Connections between the Two Cannabimimetic Eicosanoids, Anandamide and 2-Arachidonoyl-Glycerol, in Mouse Neuroblastoma Cells. Biochem Biophys Res Commun 1996; 227: 281–288.
Bisogno T, Maccarrone M, De Petrocellis, et al. The uptake by cells of 2-arachidonoylglycerol, an endogenous agonist of cannabinoid receptors. Eur J Biochem 2001; 268: 1982–1989.
Smani T, Zakharov SI, Leno E, Csutora P, Trepakova ES, Bolotina VM. Ca2+-independent phospholipase A2 is a novel determinant of store-operated Ca2+ entry. J Biol Chem 2003; 278: 11909–11915.
Paumen MB, Ishida Y, Muramatsu M, Yamamoto M, Honjo T. Inhibition of carnitine palmitoyltransferase I augments sphingolipid synthesis and palmitate-induced apoptosis. J Biol Chem 1997; 272: 3324–3329.
Richieri GV, Anel A, Kleinfeld AM. Interactions of long-chain fatty acids and albumin: Determination of free fatty acid levels using the fluorescent probe ADIFAB. Biochemistry 1993; 32: 7574–7580.
Chow SC, Sisfontes L, Björkhem I, Jondal M. Supression of growth in a leukemic T cell line by n-3 and n-6 polyunsaturated fatty acids. Lipids 1989; 24: 700–704.
Luberto C, Hannun Y. Sphingomyelin Synthase, a Potential Regulator of Intracellular Levels of Ceramide and Diacylglycerol during SV40 Transformation. Does sphingomyelin synthase account for the putative PC-specific PLC? J Biol Chem 1998; 273: 14550–14559.
Bratton DL, Fadok VA, Richter, et al. Polyamine regulation of plasma membrane phospholipid flip-flop during apoptosis. J Biol Chem 1999; 274: 28113–28120.
Fadok VA, Bratton DL, Rose DM, Pearson A, Ezekewitz RA, Henson PM. A receptor for phosphatidylserine-specific clearance of apoptotic cells. Nature 2000; 405: 85–90.
Fadok VA, Voelker DR, Campbell PA, Cohen JJ, Bratton DL, Henson PM. Exposure of phosphatidylserine on the surface of apoptotic lymphocytes triggers specific recognition and removal by macrophages. J Immunol 1992; 148: 2207–2216.
Bisogno T, Howell F, Williams, et al. Cloning of the first sn1-DAG lipases points to the spatial and temporal regulation of endocannabinoid signaling in the brain. J Cell Biol 2003; 163: 463–468.
Balsinde J, Diez E, Mollinedo F. Arachidonic acid release from diacylglycerol in human neutrophils. Translocation of diacylglycerol-deacylating enzyme activities from an intracellular pool to plasma membrane upon cell activation. J Biol Chem 1991; 266: 15638–15643.
Ramoni C, Spadaro F, Barletta B, Dupuis ML, Podo F. Phosphatidylcholine-specific phospholipase C in mitogen-stimulated fibroblasts. Exp Cell Res 2004; 299: 370–382.
Pandol SJ, Hsu YL, Kondratenko NF, Schoffield-Payne MS, Steinbach JH. Dual pathways for agonist-stimulated arachidonic acid release in pancreatic acini: Roles in secretion. Am J Physiol 1991; 260: G423–G433.
Hou W, Arita Y, Morisset J. Caerulein-stimulated arachidonic acid release in rat pancreatic acini: A diacylglycerol lipase affair. Am J Physiol 1996; 271: C1735–C1742.
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Iturralde, M., Pardo, J., Lacasa, E. et al. Characterization of the lipolytic pathways that mediate free fatty acid release during Fas/CD95-induced apoptosis. Apoptosis 10, 1369–1381 (2005). https://doi.org/10.1007/s10495-005-1511-1
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DOI: https://doi.org/10.1007/s10495-005-1511-1