A role for fatty acids and liver fatty acid binding protein in peroxisome proliferation?

1992 ◽  
Vol 20 (4) ◽  
pp. 824-827 ◽  
Author(s):  
Isabelle Issemann ◽  
Rebecca Prince ◽  
Jonathan Tugwood ◽  
Stephen Green
FEBS Journal ◽  
2014 ◽  
Vol 281 (9) ◽  
pp. 2266-2283 ◽  
Author(s):  
Huan Huang ◽  
Avery L. McIntosh ◽  
Gregory G. Martin ◽  
Kerstin K. Landrock ◽  
Danilo Landrock ◽  
...  

2002 ◽  
Vol 277 (32) ◽  
pp. 29139-29151 ◽  
Author(s):  
Huan Huang ◽  
Olga Starodub ◽  
Avery McIntosh ◽  
Ann B. Kier ◽  
Friedhelm Schroeder

1991 ◽  
Vol 280 (2) ◽  
pp. 387-391 ◽  
Author(s):  
J R Cannon ◽  
P I Eacho

Fatty-acid-binding protein (FABP) is a 14 kDa protein found in hepatic cytosol which binds and transports fatty acids and other hydrophobic ligands throughout the cell. The purpose of this investigation was to determine whether LY171883, a leukotriene D4 antagonist, and other peroxisome proliferators bind to FABP and displace an endogenous fatty acid. [3H]Oleic acid was used to monitor the elution of FABP during chromatographic purification. [14C]LY171883 had a similar elution profile when substituted in the purification, indicating a common interaction with FABP. LY171883 and its structural analogue, LY189585, as well as the hypolipidaemic peroxisome proliferators clofibric acid, ciprofibrate, bezafibrate and WY14,643, displaced [3H]oleic acid binding to FABP. Analogues of LY171883 that do not induce peroxisome proliferation only weakly displaced oleate binding. [3H]Ly171883 bound directly to FABP with a Kd of 10.8 microM, compared with a Kd of 0.96 microM for [3H]oleate. LY171883 binding was inhibited by LY189585, clofibric acid, ciprofibrate and bezafibrate. These findings demonstrate that peroxisome proliferators, presumably due to their structural similarity to fatty acids, are able to bind to FABP and displace an endogenous ligand from its binding site. Interaction of peroxisome proliferators with FABP may be involved in perturbations of fatty acid metabolism caused by these agents as well as in the development of the pleiotropic response of peroxisome proliferation.


1998 ◽  
Vol 76 (4) ◽  
pp. 593-599 ◽  
Author(s):  
J M Stewart ◽  
T E English ◽  
K B Storey

Hibernating mammals rely heavily on lipid metabolism to supply energy during hibernation. We wondered if the fatty acid binding protein from a hibernator responded to temperature differently than that from a nonhibernator. We found that the Kd for oleate of the liver fatty acid binding protein (1.5 micromolar) isolated from ground squirrel (Spermophilus richardsonii) was temperature insensitive over 5-37°C, while the rat liver fatty acid binding protein was affected with the Kd at 37°C being about half (0.8 micromolar) that found at lower temperatures. This same trend was observed when comparing the specificity of various fatty acids of differing chain length and degree of unsaturation for the two proteins at 5 and 37°C. At the lower temperature, ground squirrel protein bound long-chain unsaturated fatty acids, particularly linoleate and linolenate, at least as well as at the higher temperature and matched requirements for these fatty acids in the diet. The most common long-chain fatty acid, palmitate, was a more effective ligand for ground squirrel liver fatty acid binding protein at 5°C than at 37°C, with the opposite occurring in the eutherm. Rat protein was clearly not adapted to function optimally at temperatures lower than the animal's body temperature.Key words: fatty acid binding protein, temperature, hibernation.


Biochemistry ◽  
1997 ◽  
Vol 36 (21) ◽  
pp. 6545-6555 ◽  
Author(s):  
Andrey Frolov ◽  
Tae-Hyeon Cho ◽  
Eric J. Murphy ◽  
Friedhelm Schroeder

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