1. A New Generation of Arachidonic Acid Analogues as Potential Neurological Agent Targeting Cytosolic Phospholipase A2
- Author
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Wee Yong Ong, Yulin Lam, Mei-Lin Go, Yong Jun Chen, Francis Chee Kuan Tan, Chandra S. Verma, Chian-Ming Low, Srinivasaraghavan Kannan, and Cheng Yang Ng
- Subjects
0301 basic medicine ,lcsh:Medicine ,medicine.disease_cause ,Nitric oxide ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Phospholipase A2 ,medicine ,lcsh:Science ,Neuroinflammation ,chemistry.chemical_classification ,Arachidonyl trifluoromethyl ketone ,Phospholipase A ,Reactive oxygen species ,Multidisciplinary ,biology ,lcsh:R ,030104 developmental biology ,Biochemistry ,chemistry ,biology.protein ,Arachidonic acid ,lcsh:Q ,030217 neurology & neurosurgery ,Oxidative stress - Abstract
Cytosolic phospholipase A2 (cPLA2) is an enzyme that releases arachidonic acid (AA) for the synthesis of eicosanoids and lysophospholipids which play critical roles in the initiation and modulation of oxidative stress and neuroinflammation. In the central nervous system, cPLA2 activation is implicated in the pathogenesis of various neurodegenerative diseases that involves neuroinflammation, thus making it an important pharmacological target. In this paper, a new class of arachidonic acid (AA) analogues was synthesized and evaluated for their ability to inhibit cPLA2. Several compounds were found to inhibit cPLA2 more strongly than arachidonyl trifluoromethyl ketone (AACOCF3), an inhibitor that is commonly used in the study of cPLA2-related neurodegenerative diseases. Subsequent experiments concluded that one of the inhibitors was found to be cPLA2-selective, non-cytotoxic, cell and brain penetrant and capable of reducing reactive oxygen species (ROS) and nitric oxide (NO) production in stimulated microglial cells. Computational studies were employed to understand how the compound interacts with cPLA2.
- Published
- 2017
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