Abstract

Since plasmalogens are the predominant phospholipid of cardiac sarcolemma, the activation of the sodium-calcium exchanger by either plasmenylethanolamine or plasmalogenic phosphatidic acid generated by phospholipase D was explored. Sodium-calcium exchange activity was 7-fold greater in proteoliposomes comprised of plasmenylethanolamine compared to proteoliposomes comprised of only plasmenylcholine. Electrospray ionization mass spectrometry was utilized to assess the reconstitution of proteoliposomes with synthetic phospholipids. Phospholipase D treatment of proteoliposomes resulted in 1 mol % conversion of plasmenylcholine or phosphatidylcholine to their respective phosphatidic acid molecular species with a concomitant 8-fold or 2-fold activation of sodium-calcium exchange activity, respectfully. Thus, phospholipase D-mediated hydrolysis of plasmalogens to phosphatidic acid may be an important mechanism for the regulation of the sodium-calcium exchanger.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR000954-24
Application #
6336770
Study Section
Project Start
2000-08-01
Project End
2001-07-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
24
Fiscal Year
2000
Total Cost
$6,028
Indirect Cost

  Institution

Name
Washington University
Department
Type
DUNS #
062761671
City
Saint Louis
State
MO
Country
United States
Zip Code
63130

  Publications

Yue, Xuyi; Dhavale, Dhruva D; Li, Junfeng et al. (2018) Design, synthesis, and in vitro evaluation of quinolinyl analogues for ?-synuclein aggregation. Bioorg Med Chem Lett 28:1011-1019
Ohlemacher, Shannon I; Giblin, Daryl E; d'Avignon, D André et al. (2017) Enterobacteria secrete an inhibitor of Pseudomonas virulence during clinical bacteriuria. J Clin Invest 127:4018-4030
Lin, Xiaobo; Racette, Susan B; Ma, Lina et al. (2017) Endogenous Cholesterol Excretion Is Negatively Associated With Carotid Intima-Media Thickness in Humans. Arterioscler Thromb Vasc Biol 37:2364-2369
Ovod, Vitaliy; Ramsey, Kara N; Mawuenyega, Kwasi G et al. (2017) Amyloid ? concentrations and stable isotope labeling kinetics of human plasma specific to central nervous system amyloidosis. Alzheimers Dement 13:841-849
Cade, W Todd; Levy, Philip T; Tinius, Rachel A et al. (2017) Markers of maternal and infant metabolism are associated with ventricular dysfunction in infants of obese women with type 2 diabetes. Pediatr Res 82:768-775
Lucey, Brendan P; Mawuenyega, Kwasi G; Patterson, Bruce W et al. (2017) Associations Between ?-Amyloid Kinetics and the ?-Amyloid Diurnal Pattern in the Central Nervous System. JAMA Neurol 74:207-215
Alvarez, Jessica A; Ziegler, Thomas R; Millson, Erin C et al. (2016) Body composition and lung function in cystic fibrosis and their association with adiposity and normal-weight obesity. Nutrition 32:447-52
Sterl, Karin; Wang, Songyan; Oestricker, Lauren et al. (2016) Metabolic responses to xenin-25 are altered in humans with Roux-en-Y gastric bypass surgery. Peptides 82:76-84
Wei, Xiaochao; Song, Haowei; Yin, Li et al. (2016) Fatty acid synthesis configures the plasma membrane for inflammation in diabetes. Nature 539:294-298
Shields-Cutler, Robin R; Crowley, Jan R; Miller, Connelly D et al. (2016) Human Metabolome-derived Cofactors Are Required for the Antibacterial Activity of Siderocalin in Urine. J Biol Chem 291:25901-25910

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