Discrimination of Malignant Pleural Mesothelioma Cell Lines Using Amino Acid Metabolomics with HPLC

• Published in: Biological & pharmaceutical bulletin Vol. 45; no. 6; pp. 724 - 729
• Main Authors: Tomita, Ryoko, Nishijo, Nao, Hayama, Tadashi, Fujioka, Toshihiro
• Format: Journal Article
• Language: English
• Published: Japan The Pharmaceutical Society of Japan 01-06-2022; Japan Science and Technology Agency
• Subjects: amino acid metabolomics; Amino acid sequence; Asbestos; Biopsy; Cell culture; Cell differentiation; Cell lines; Culture media; Diagnosis; discriminative model; fluorescence derivatization; High-performance liquid chromatography; HPLC; Malignancy; malignant mesothelioma cell line; Mesothelioma; Metabolomics; Methionine; principal component analysis; Principal components analysis; malignant mesothelioma cell line; amino acid metabolomics; HPLC; fluorescence derivatization; principal component analysis; discriminative model
• ISSN: 0918-6158; 1347-5215
• DOI: 10.1248/bpb.b21-00972

Malignant pleural mesothelioma (MPM) is a malignancy closely associated with asbestos exposure. Although early diagnosis provides a chance of effective treatment and better prognosis, invasive biopsy and cytological procedure are required for definitive diagnosis. In this study, we developed a method to differentiate between MPM and control cell lines, named “amino acid metabolomics,” consisting in the assessment of the balance of their amino acid levels in the cell culture medium. Culture media of MESO-1 (MPM cell line) and Met-5A (control) cells were used in this study to evaluate amino acid levels using HPLC, following the fluorescence derivatization method. The time-dependent changes in amino acid levels were visualized on the score plot following principal component analysis, and the results revealed differential changes in amino acid levels between the two cell culture supernatants. A discriminative model based on linear discriminant analysis could distinguish MPM and control cells.