101
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Wong TY, Dreyfus H, Harth S, Louis JC, Mandel P, Massarelli R. [Role of sialo compounds in choline uptake by synaptosomes]. COMPTES RENDUS DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE III, SCIENCES DE LA VIE 1981; 293:31-7. [PMID: 6796200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Two kinetic mechanisms are responsible for the uptake of choline in Rat brain synaptosomal fractions with different affinity towards the substrate (high affinity mechanism: Km 5.1 microM, Vmax 44 pmol/mg prot/min.; low affinity mechanism: 35.7 microM, Vmax 286 pmol/mg prot/min). The treatment of synaptosomal fractions with neuraminidase (15 min. at 37 degrees C) followed by 1 min. incubation with various concentrations of [14C] choline reduces the uptake in parallel with the disappearance of the high affinity mechanism (Km 202.2 microM, Vmax 119 pmol/mg prot/min.), without influencing the synthesis of acetylcholine.
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102
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Nilsson O, Fredman P, Klinghardt GW, Dreyfus H, Svennerholm L. Chloroquine-induced accumulation of gangliosides and phospholipids in skeletal muscles. Quantitative determination and characterization of stored lipids. EUROPEAN JOURNAL OF BIOCHEMISTRY 1981; 116:565-71. [PMID: 7262076 DOI: 10.1111/j.1432-1033.1981.tb05373.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
High doses of the lysosomotropic drug chloroquine result in lipid storage in many organs in animals. We used miniature pigs, type Göttingen, to study the lipid accumulation in skeletal muscle after chloroquine intoxication for more than 200 days. The lipids of the quadriceps muscle in intoxicated and in age-matched control pigs were characterized and determined. The lipid storage was larger in skeletal muscle than in any other organ of the intoxicated pigs. The concentration of phospholipids was increased threefold, acidic phospholipids relatively more than neutral ones. The lysosome-specific acidic phospholipid bis(monoacylglyceryl)phosphate content was almost 50-fold larger in the intoxicated pigs than in the controls. Cholesterol was increased slightly more than the phospholipids, but there was no particular accumulation of cholesteryl esters, which has been shown to occur in the liver. For the first time a storage of gangliosides, relatively more pronounced than of other lipids, was demonstrated in skeletal muscle in the drug-induced lipidosis. The concentration of total gangliosides was increased 10--15-fold, and the pattern of gangliosides showed some distinct changes resulting in at least a 100-fold increase in the concentration of ganglioside GM2 (II3NeuAc-GgOse4Cer).
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103
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Wong TY, Dreyfus H, Massarelli R. Transport and metabolism of choline in synaptosomes: ionic requirement. Biochem Soc Trans 1981; 9:84-5. [PMID: 7215684 DOI: 10.1042/bst0090084] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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104
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Dreyfus H, Harth S, Gomez de Gracia A, Hoflack B, Mandel P, Louis JC. Ganglioside sialylation during maturation of cultured neurons. Biochem Soc Trans 1981; 9:102-3. [PMID: 7215625 DOI: 10.1042/bst0090102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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105
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Louis JC, Vincendon G, Massarelli R, Dreyfus H. Development of dopaminergic properties in cultured neurons from chick embryo cerebral hemispheres. Biochem Soc Trans 1981; 9:104-5. [PMID: 6111504 DOI: 10.1042/bst0090104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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106
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107
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Dreyfus H, Harth S, Yusufi AN, Urban PF, Mandel P. Sialyltransferase activities in two neuronal models: retina and cultures of isolated neurons. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1980; 125:227-37. [PMID: 7361614 DOI: 10.1007/978-1-4684-7844-0_22] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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108
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Urban PF, Harth S, Freysz L, Dreyfus H. Brain and retinal ganglioside composition from different species determined by TLC and HPTLC. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1980; 125:149-57. [PMID: 6767341 DOI: 10.1007/978-1-4684-7844-0_14] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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109
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Mandel P, Dreyfus H, Yusufi AN, Sarliève L, Robert J, Neskovic N, Harth S, Rebel G. Neuronal and glial cell cultures, a tool for investigation of ganglioside function. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1980; 125:515-31. [PMID: 6102430 DOI: 10.1007/978-1-4684-7844-0_45] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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110
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Dreyfus H, Harth S, Urban PF, Mandel P, Freysz L. Enzymatic biosynthesis of ethanolamine- and choline-phosphoglycerides in retina during development. Effect of light stimulation. J Neurochem 1978; 31:1157-62. [PMID: 702164 DOI: 10.1111/j.1471-4159.1978.tb06239.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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111
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Preti A, Fiorilli A, Dreyfus H, Harth S, Urban PF, Mandel P. Developmental studies of the catabolism of sialocompounds by endogenous neuraminidase in the chick retina. Exp Eye Res 1978; 26:621-8. [PMID: 680019 DOI: 10.1016/0014-4835(78)90096-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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112
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Harth S, Dreyfus H, Urban PF, Mandel P. Direct thin-layer chromatography of gangliosides of a total lipid extract. Anal Biochem 1978; 86:543-51. [PMID: 655414 DOI: 10.1016/0003-2697(78)90781-9] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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113
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Virmaux N, Delmelle M, Nullans G, Dreyfus H. Rhodopsin vesicles derived from retinal-outer-segment membranes: effect of light and detergent on the lipid fraction [proceedings]. Biochem Soc Trans 1978; 6:669-71. [PMID: 208896 DOI: 10.1042/bst0060669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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114
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Urban PF, Neskovic N, Harth S, Mandel P, Dreyfus H. Sequential synthesis of ganglioside precursors and haematosides in chicken retina. Biochem Soc Trans 1978; 6:172-4. [PMID: 640154 DOI: 10.1042/bst0060172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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115
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Dreyfus H, Pescheloche M, Harth S, Mandel P, Aunis D. Lipids in bovine adrenal-medullary chromaffin granules: structure, location and accessibility in the membrane of gangliosides, and lactosylceramide sialytransferase activity [proceedings]. Biochem Soc Trans 1978; 6:312-4. [PMID: 640202 DOI: 10.1042/bst0060312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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116
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Dreyfus H, Pieringer JA, Farooqui AA, Harth S, Rebel G, Sarlieve LL. Sulpholipid metabolism in developing chicken retina. J Neurochem 1978; 30:167-74. [PMID: 23417 DOI: 10.1111/j.1471-4159.1978.tb07048.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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117
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Dreyfus H, Harth S, Preti A, Urban PF, Mandel P. Studies on retinal ganglioside metabolism. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1978; 101:655-65. [PMID: 665385 DOI: 10.1007/978-1-4615-9071-2_61] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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118
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Dreyfus H, Aunis D, Harth S, Mandel P. Gangliosides and phospholipids of the membranes from bovine adrenal medullary chromaffin granules. BIOCHIMICA ET BIOPHYSICA ACTA 1977; 489:89-97. [PMID: 562192 DOI: 10.1016/0005-2760(77)90235-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The lipid and ganglioside compositions of membranes of chromaffin granules isolated from bovine adrenal medulla have been investigated. The detailed lipid analysis revealed the presence of high levels of lysophosphatidylcholine, in agreement with previous studies, but also of sphingomyelin and plasmalogens. From these membranes, gangliosides have been extracted and separated by thin-layer chromatography and analysed. 95% of the total recovered gangliosides were hematosides (GM3), which migrated as three major species. Sugar analyses have been performed, as well as the fatty acid compositions. The three hematoside gangliosides appeared to differ on the basis of their fatty acid composition. Compared with the brain, chromaffin granule membranes showed a simple ganglioside composition, thus offering a good model for the study of the metabolism and the role of gangliosides. The simple ganglioside composition of chromaffin granule membranes has allowed us to state that there are 60 mol phospholipid and 30 mol cholesterol per mol ganglioside.
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119
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Dreyfus H, Edel-Harth S, Urban PF, Neskovic N, Mandel P. Enzymatic synthesis of lactosylceramide by a galactosyltransferase from developing chicken retina. Exp Eye Res 1977; 25:1-7. [PMID: 891654 DOI: 10.1016/0014-4835(77)90239-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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120
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Dreyfus H, Harth S, Preti A, Urban PF, Mandel P. Action of endogenous neuraminidase on sialo compounds in the developing chick retina. Biochem Soc Trans 1977; 5:198-200. [PMID: 892161 DOI: 10.1042/bst0050198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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121
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Dreyfus H, Harth S, Urban PF, Mandel P, Preti A, Lombardo A. On the presence of a "particle-bound" neuraminidase in retina: a developmental study. Life Sci 1976; 18:1057-63. [PMID: 6852 DOI: 10.1016/0024-3205(76)90138-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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122
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Urban PF, Dreyfus H, Mandel P. Influence of various amino acids on the bioelectrical response to light stimulation of a superfused frog retina. Life Sci 1976; 18:473-9. [PMID: 1082970 DOI: 10.1016/0024-3205(76)90324-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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123
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Dorman RV, Dreyfus H, Freysz L, Horrocks LA. Ether lipid content of phosphoglycerides from the retina and brain of chicken and calf. BIOCHIMICA ET BIOPHYSICA ACTA 1976; 486:55-9. [PMID: 1009135 DOI: 10.1016/0005-2760(77)90069-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Phospholipid contents and compositions were determined for chicken and calf retinas, chicken brain and calf gray matter. Retinal phospholipid compositions differ from brain phospholipid compositions by including a higher percentage of choline phosphoglycerides and lower percentages of ethanolamine and serine phosphoglycerides. The proportion of sphingomyelin is lower in calf retina than in calf brain. Among the ethanolamine phosphoglycerides, the proportions of the alk-1-enylacyl (plasmalogen) type are lower and the proportions of alkylacyl and diacyl types are higher in retina than in brain. The alkyacyl glycerophosphoethanolamines accounted for 7.6% and 8.9% of the ethanolamine phosphoglycerides from chicken and calf retinas respectively. Lower proportions of plasmalogens in the choline phosphoglycerides were found in retina as compared with brain. The alkylacyl glycerylphosphocholines comprised 4.0% of the retinal choline phosphoglycerides. Overall, a smaller proportion of retinal phosphilipids than of brain phospholipids contained alkyl or alk-1-enyl ether groups and the ratio of alkyl groups to alk-1-enyl groups was greater in retina than in brain.
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124
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Dreyfus H, Harth S, Urban PF, Mandel P. Stimulation of chick retinal ganglioside synthesis by light. Vision Res 1976; 16:1365-9. [PMID: 1007014 DOI: 10.1016/0042-6989(76)90153-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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125
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Dreyfus H, Urban PF, Harth S, Preti A, Mandel P. Retinal gangliosides: composition, evolution with age. Biosynthetic and metabolic approaches. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1976; 71:163-88. [PMID: 779416 DOI: 10.1007/978-1-4614-4614-9_11] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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