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A critical analysis of L-asparaginase activity quantification methods—colorimetric methods versus high-performance liquid chromatography

Magri, Agnes ; Soler, Matheus F. ; Lopes, André M. ; Cilli, Eduardo M. ; Barber, Patrick S. ; Pessoa, Adalberto ; Pereira, Jorge F. B.

Analytical and bioanalytical chemistry, 2018-11, Vol.410 (27), p.6985-6990 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
A critical analysis of L-asparaginase activity quantification methods—colorimetric methods versus high-performance liquid chromatography
Autor: Magri, Agnes ; Soler, Matheus F. ; Lopes, André M. ; Cilli, Eduardo M. ; Barber, Patrick S. ; Pessoa, Adalberto ; Pereira, Jorge F. B.
Assuntos: Acrylamide ; Acute lymphoblastic leukemia ; Analytical Chemistry ; Anticancer properties ; Asparaginase ; Asparaginase - analysis ; Asparaginase - metabolism ; Asparagine ; Asparagine - analogs & derivatives ; Asparagine - metabolism ; Aspartic acid ; Aspartic Acid - metabolism ; Biochemistry ; Bioequivalence ; Characterization and Evaluation of Materials ; Chemical properties ; Chemistry ; Chemistry and Materials Science ; Chromatography ; Chromatography, High Pressure Liquid - methods ; Colorimetry ; Colorimetry - methods ; Communication ; Comparative analysis ; Control methods ; Correlation analysis ; Cytotoxicity ; Enzyme Assays - methods ; Food industry ; Food processing ; Food processing industry ; Food Science ; High performance liquid chromatography ; Humans ; L-asparaginase ; Laboratory Medicine ; Leukemia ; Liquid chromatography ; Lymphatic leukemia ; Lymphosarcoma ; Methods ; Monitoring/Environmental Analysis ; Quality control ; Substrates ; Toxicity
É parte de: Analytical and bioanalytical chemistry, 2018-11, Vol.410 (27), p.6985-6990
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Descrição: L-asparaginase or ASNase (L-asparagine aminohydrolase, E.C.3.5.1.1) is an enzyme clinically accepted as an antitumor agent to treat acute lymphoblastic leukemia (ALL) and lymphosarcoma through the depletion of L-asparagine (L-Asn) resulting in cytotoxicity to leukemic cells. ASNase is also important in the food industry, preventing acrylamide formation in processed foods. Several quantification techniques have been developed and used for the measurement of the ASNase activity, but standard pharmaceutical quality control methods were hardly reported, and in general, no official quality control guidelines were defined. To overcome this lack of information and to demonstrate the advantages and limitations, this work properly compares the traditional colorimetric methods (Nessler; L-aspartic acid β-hydroxamate (AHA); and indooxine) and the high-performance liquid chromatography (HPLC) method. A comparison of the methods using pure ASNase shows that the colorimetric methods both overestimate (Nessler) and underestimate (AHA and indooxine) the ASNase activity when compared to the values obtained with HPLC, considered the most precise method as this method monitors both substrate consumption and product formation, allowing for overall mass-balance. Correlation and critical analysis of each method relative to the HPLC method were carried out, resulting in a demonstration that it is crucial to select a proper method for the quantification of ASNase activity, allowing bioequivalence studies and individualized monitoring of different ASNase preparations. Graphical abstract ᅟ
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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A critical analysis of L-asparaginase activity quantification methods—colorimetric methods versus high-performance liquid chromatography

Magri, Agnes ; Soler, Matheus F. ; Lopes, André M. ; Cilli, Eduardo M. ; Barber, Patrick S. ; Pessoa, Adalberto ; Pereira, Jorge F. B.

Berlin/Heidelberg: Springer Berlin Heidelberg

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