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A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

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Published on: April 11, 2014

A derivative of ascorbic acid modulates cAMP production.

B Bordignon¹, S Mones, F Rahman

¹N.O.R.T.: Nutrition, Obesity and Risk of Thrombosis, Aix-Marseille University, INSERM U 1062, INRA 1260, 27 boulevard Jean Moulin, F-13385 Marseille, France.

Biochemical and Biophysical Research Communications

|August 15, 2013

Summary

AA regulates cAMP pools, and its analog K873 also impacts cAMP production without antioxidant activity. This suggests AA derivatives may be promising drugs for cAMP-dependent pathways.

Keywords:

Antioxidants Ascorbic acid Cyclic AMP

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Area of Science:

Biochemistry
Molecular Biology
Pharmacology

Background:

Adenosine cyclic monophosphate (cAMP) is a crucial second messenger regulating numerous cellular processes.
Previous studies identified AA as a global regulator of cellular cAMP pools.

Purpose of the Study:

To investigate the impact of K873, a synthesized analog of AA with antiproliferative properties, on cAMP production.
To determine if the effect of AA on cAMP production is linked to its antioxidant activity.

Main Methods:

Synthesis of K873, an analog of AA.
Assessment of K873's antiproliferative properties.
Measurement of cAMP production in response to AA and K873.
Evaluation of the antioxidant activity of AA and K873.

Main Results:

K873, despite lacking antioxidant activity, demonstrably impacts cAMP production.
AA exhibits antioxidant activity, while K873 does not.
The findings decouple the effect of AA on cAMP production from its antioxidant properties.

Conclusions:

AA and its derivatives, like K873, influence cAMP production independently of antioxidant effects.
These molecules represent potential therapeutic agents targeting cAMP-dependent biological pathways.
Further research into AA derivatives could yield novel drugs for diseases involving cAMP signaling.