Membrane fluidity of Toxoplasma gondii: a fluorescence polarization study

作者: Yves Gallois , Françoise Foussard , Andrée Girault , Jocelyne Hodbert , Anne Tricaud

DOI: 10.1111/J.1768-322X.1988.TB00701.X

关键词:

摘要: Toxoplasma gondii membrane fluidity was investigated by fluorescence polarization. We used 1,6-diphenyl 1,3,5-hexatriene (DPH) as a fluorescent hydrophobic probe. Fluorescence anisotropy (r) and degree of order (s) showed high properties. Chemical analysis performed on this parasite. found low cholesterol/phospholipid ratio, many unsaturated fatty acid chains, phosphatidylcholine sphingomyelin amounts. These results were in good agreement with the observed fluidity. This may be related to great adaptability infesting wide variety host cells.

参考文章(16)
A. Lewis Farr, Oliver H. Lowry, Rose J. Randall, Nira J. Rosebrough, Protein Measurement with the Folin Phenol Reagent Journal of Biological Chemistry. ,vol. 193, pp. 265- 275 ,(1951)
D. Grunberger, R. Haimovitz, M. Shinitzky, Resolution of plasma membrane lipid fluidity in intact cells labelled with diphenylhexatriene. Biochimica et Biophysica Acta. ,vol. 688, pp. 764- 774 ,(1982) , 10.1016/0005-2736(82)90290-5
Hans Pottel, Wieb van der Meer, Willy Herreman, Correlation between the order parameter and the steady-state fluorescence anisotropy of 1,6-diphenyl-1,3,5-hexatriene and an evaluation of membrane fluidity Biochimica et Biophysica Acta (BBA) - Biomembranes. ,vol. 730, pp. 181- 186 ,(1983) , 10.1016/0005-2736(83)90331-0
Richard A. Cooper, Mary H. Leslie, Steven Fischkoff, Meir Shinitzky, Sanford J. Shattil, Factors influencing the lipid composition and fluidity of red cell membranes in vitro: production of red cells possessing more than two cholesterols per phospholipid Biochemistry. ,vol. 17, pp. 327- 331 ,(1978) , 10.1021/BI00595A021
M. Shinitzky, Y. Barenholz, Fluidity parameters of lipid regions determined by fluorescence polarization Biochimica et Biophysica Acta (BBA) - Reviews on Biomembranes. ,vol. 515, pp. 367- 394 ,(1978) , 10.1016/0304-4157(78)90010-2
Kazuyuki Tanabe, Isao Kimata, Suehisa Takada, Penetration of chick embryo erythrocytes by toxoplasma gondii tachyzoites in simplified incubation media. Journal of Parasitology. ,vol. 66, pp. 240- 244 ,(1980) , 10.2307/3280811
Meir Shinitzky, Michael Inbar, Microviscosity parameters and protein mobility in biological membranes. Biochimica et Biophysica Acta. ,vol. 433, pp. 133- 149 ,(1976) , 10.1016/0005-2736(76)90183-8
Sanford J. Shattil, Richard A. Cooper, Membrane microviscosity and human platelet function. Biochemistry. ,vol. 15, pp. 4832- 4837 ,(1976) , 10.1021/BI00667A012