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  • Human GAPDH Is a Target of Aspirin's Primary Metabolite Salicylic Acid and Its Derivatives.

Human GAPDH Is a Target of Aspirin's Primary Metabolite Salicylic Acid and Its Derivatives.

PloS one (2015-11-26)
Hyong Woo Choi, Miaoying Tian, Murli Manohar, Maged M Harraz, Sang-Wook Park, Frank C Schroeder, Solomon H Snyder, Daniel F Klessig
ABSTRACT

The plant hormone salicylic acid (SA) controls several physiological processes and is a key regulator of multiple levels of plant immunity. To decipher the mechanisms through which SA's multiple physiological effects are mediated, particularly in immunity, two high-throughput screens were developed to identify SA-binding proteins (SABPs). Glyceraldehyde 3-Phosphate Dehydrogenase (GAPDH) from plants (Arabidopsis thaliana) was identified in these screens. Similar screens and subsequent analyses using SA analogs, in conjunction with either a photoaffinity labeling technique or surface plasmon resonance-based technology, established that human GAPDH (HsGAPDH) also binds SA. In addition to its central role in glycolysis, HsGAPDH participates in several pathological processes, including viral replication and neuronal cell death. The anti-Parkinson's drug deprenyl has been shown to suppress nuclear translocation of HsGAPDH, an early step in cell death and the resulting cell death induced by the DNA alkylating agent N-methyl-N'-nitro-N-nitrosoguanidine. Here, we demonstrate that SA, which is the primary metabolite of aspirin (acetyl SA) and is likely responsible for many of its pharmacological effects, also suppresses nuclear translocation of HsGAPDH and cell death. Analysis of two synthetic SA derivatives and two classes of compounds from the Chinese medicinal herb Glycyrrhiza foetida (licorice), glycyrrhizin and the SA-derivatives amorfrutins, revealed that they not only appear to bind HsGAPDH more tightly than SA, but also exhibit a greater ability to suppress translocation of HsGAPDH to the nucleus and cell death.

MATERIALS
Product Number
Brand
Product Description

Custom DNA Oligos, Design and Order Custom Oligos
Sigma-Aldrich
Acetylsalicylic acid, ≥99.0%
Sigma-Aldrich
N,N-Dimethylformamide, for molecular biology, ≥99%
Sigma-Aldrich
Triethylamine, BioUltra, ≥99.5% (GC)
Sigma-Aldrich
Glycyrrhizic acid ammonium salt from glycyrrhiza root (licorice), ≥95.0% (NT)
293 Cell Line human, from human kidney(embryonic), 85120602
Sigma-Aldrich
Salicylic acid, ACS reagent, ≥99.0%
Sigma-Aldrich
Acetic anhydride, ACS reagent, ≥98.0%