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Hydroxymethylfurfural: an enemy or a friendly xenobiotic? A bioanalytical approach
1Institute of Pharmaceutical Sciences, Pharmaceutical Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
Abstract:
Hydroxymethylfurfural (HMF), a well-known heterocyclic Maillard reaction product, has often been studied for its potential toxic, mutagenic, and carcinogenic effects. Recent clinical studies, however, have strongly suggested that HMF might have exciting antitumor potential. We report on the development and validation of a bioanalytical assay for HMF that could be suitable as a basis for pharmacokinetic models in cancer patients. Two strategies were tested, i.e., direct and indirect methodologies. A direct isocratic LC determination at 283 nm was designed. Two indirect attempts involved derivatization coupled to HPLC-UV. It was possible to resolve the stereoisomers of the HMF derivative, and factors influencing their equilibrium ratio are discussed. HMF was extracted from the biomatrix by solid-phase extraction using different cartridges. A comparative study was made of the implemented methods as well as the extraction protocols. Both indirect assays proved to be more sensitive and were used to assess HMF quantitatively in human plasma. However, the newly introduced derivatization conditions led to the highest sensitivity with a LOD (S/N ratio = 3) of at least 2 pmol analyte on column. The assay selectivity was satisfactory in pre- and post-dose real samples. The mean recoveries of the assays were 79% and 89%, with acceptable accuracies and reproducibilities. Figure Schematic representation of hydroxymethylfurfural (HMF) in human plasma.
Insights
Hydroxymethylfurfural (HMF), a compound previously linked to toxicity, shows promise as an antitumor agent. This study developed a sensitive bioanalytical assay for quantifying HMF in human plasma, crucial for cancer patient pharmacokinetic studies.
Area of Science:
- Analytical Chemistry
- Pharmacology
- Biochemistry
Background:
- Hydroxymethylfurfural (HMF) is a Maillard reaction product with known toxic effects.
- Emerging clinical research suggests HMF possesses significant antitumor potential.
- Accurate quantification of HMF in biological matrices is essential for cancer research.
Purpose of the Study:
- To develop and validate a sensitive bioanalytical assay for Hydroxymethylfurfural (HMF).
- To establish a method suitable for pharmacokinetic modeling in cancer patients.
- To compare direct and indirect analytical methodologies for HMF quantification.
Main Methods:
- Development of direct liquid chromatography (LC) and indirect derivatization-HPLC-UV methods.
- Optimization of solid-phase extraction (SPE) protocols for HMF from human plasma.
- Resolution and analysis of HMF derivative stereoisomers.
Main Results:
- Indirect assays demonstrated higher sensitivity compared to the direct method.
- The optimized derivatization conditions achieved a limit of detection (LOD) of at least 2 pmol on-column.
- Assays showed satisfactory selectivity in real patient samples, with mean recoveries of 79% and 89%.
Conclusions:
- Sensitive and selective bioanalytical assays for HMF in human plasma were successfully developed and validated.
- Indirect methods, particularly with new derivatization conditions, offer superior sensitivity for HMF quantification.
- The developed assay provides a foundation for pharmacokinetic studies of HMF in cancer patients.
