| Autor: |
Yusuke Nakade, Masashi Kinoshita, Mitsutoshi Nakada, Hemragul Sabit, Toshiya Ichinose, Masashi Mita, Takeo Yuno, Moeko Noguchi-Shinohara, Kenjiro Ono, Yasunori Iwata, Takashi Wada |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Acta Neuropathologica Communications, Vol 12, Iss 1, Pp 1-16 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2051-5960 |
| DOI: |
10.1186/s40478-024-01836-6 |
| Popis: |
Abstract Gliomas, particularly glioblastomas (GBMs), pose significant challenges due to their aggressiveness and poor prognosis. Early detection through biomarkers is critical for improving outcomes. This study aimed to identify novel biomarkers for gliomas, particularly GBMs, using chiral amino acid profiling. We used chiral amino acid analysis to measure amino acid L- and D-isomer levels in resected tissues (tumor and non-tumor), blood, and urine from 33 patients with primary gliomas and 24 healthy volunteers. The levels of D-amino acid oxidase (DAO), a D-amino acid-degrading enzyme, were evaluated to investigate the D-amino acid metabolism in brain tissue. The GBM mouse model was created by transplanting GBM cells into the brain to confirm whether gliomas affect blood and urine chiral amino acid profiles. We also assessed whether D-amino acids produced by GBM cells are involved in cell proliferation. D-asparagine (D-Asn) levels were higher and DAO expression was lower in glioma than in non-glioma tissues. Blood and urinary D-Asn levels were lower in patients with GBM than in healthy volunteers (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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