期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 64, 期 19-20, 页码 2465-2476出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-007-7279-4
关键词
fatty acid; PPAR (peroxisome proliferation-activated receptor); fatty acid binding protein; lipid binding protein
Translation of nutrient stimuli through intracellular signaling is important for adaption and regulation of metabolic processes, while deregulation by either genetic or environmental factors predisposes towards the development of metabolic disorders. Besides providing energy, fatty acids act as prominent signaling molecules by altering cell membrane structures, affecting the lipid modification status of proteins, and by modulating ligand-activated nuclear receptor activity. Given their highly hydrophobic nature, fatty acids in the aqueous intracellular compartment are bound to small intracellular lipid binding proteins which function as intracellular carriers of these hydrophobic components. This review describes recent advances in identifying intracellular pathways for cytosolic fatty acid signaling through ligand activated receptors by means of small intracellular lipid binding proteins. The mechanism behind intracellular fatty acid transport and subsequent nuclear receptor activation is an emerging concept, and advances in understanding this process provide new potential therapeutic targets towards the treatment of metabolic disorders.
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