Molecular Medicine

, Volume 17, Issue 9–10, pp 1107–1118 | Cite as

Severe Alterations in Lipid Composition of Frontal Cortex Lipid Rafts from Parkinson’s Disease and Incidental Parkinson’s Disease

  • Noemí Fabelo
  • Virginia Martín
  • Gabriel Santpere
  • Raquel Marín
  • Laia Torrent
  • Isidre Ferrer
  • Mario Díaz
Research Article


Lipid rafts are cholesterol- and sphingomyelin-enriched microdomains that provide a highly saturated and viscous physico-chemical microenvironment to promote protein-lipid and protein-protein interactions. We purified lipid rafts from human frontal cortex from normal, early motor stages of Parkinson’s disease (PD) and incidental Parkinson’s disease (iPD) subjects and analyzed their lipid composition. We observed that lipid rafts from PD and iPD cortices exhibit dramatic reductions in their contents of n-3 and n-6 long-chain polyunsaturated fatty acids, especially docosahexaenoic acid (22:6-n3) and arachidonic acid (20:4n-6). Also, saturated fatty acids (16:0 and 18:0) were significantly higher than in control brains. Paralleling these findings, unsaturation and peroxidability indices were considerably reduced in PD and iPD lipid rafts. Lipid classes were also affected in PD and iPD lipid rafts. Thus, phosphatidylserine and phosphatidylinositol were increased in PD and iPD, whereas cerebrosides and sulfatides and plasmalogen levels were considerably diminished. Our data pinpoint a dramatic increase in lipid raft order due to the aberrant biochemical structure in PD and iPD and indicate that these abnormalities of lipid rafts in the frontal cortex occur at early stages of PD pathology. The findings correlate with abnormal lipid raft signaling and cognitive decline observed during the development of these neurodegenerative disorders.



This study was supported by grants SAF2007-66148-C02-02 and SAF2010-22114-C02-01/02 from the Spanish Ministry of Science and Innovation and FIS-PI080582 from the Spanish Ministry of Health.


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Copyright information

© The Feinstein Institute for Medical Research 2011

Authors and Affiliations

  • Noemí Fabelo
    • 1
    • 2
  • Virginia Martín
    • 1
    • 2
  • Gabriel Santpere
    • 3
  • Raquel Marín
    • 1
    • 4
  • Laia Torrent
    • 3
  • Isidre Ferrer
    • 3
  • Mario Díaz
    • 1
    • 2
  1. 1.Instituto de Tecnologías Biomédicas, Universidad de La LagunaTenerifeSpain
  2. 2.Laboratory of Membrane Physiology and Biophysics, Departamento de Biología AnimalUniversidad de La LagunaTenerifeSpain
  3. 3.Institut Neuropatologia, Servei Anatomia Patologica, Hospital Universitari de BellvitgeUniversitat de Barcelona, Hospitalet de LlobregatCibernedSpain
  4. 4.Departamento de FisiologíaUniversidad de La LagunaTenerifeSpain

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