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- Title
C 609T Polymorphism of NADPH Quinone Oxidoreductase 1 Correlates Clinical Hematological Toxicities in Lung Cancer Patients Treated with Amrubicin.
- Authors
Misato Nagata; Tatsuo Kimura; Tomohiro Suzumura; Yukimi Kira; Toshiyuki Nakai; Kanako Umekawa; Hidenori Tanaka; Kuniomi Matsuura; Shigeki Mitsuoka; Naruo Yoshimura; Takako Oka; Shinzoh Kudoh; Kazuto Hirata
- Abstract
Background: Amrubicin hydrochloride (AMR) is a key agent for lung cancer. NADPH quinone oxidoreductase 1 (NQO1) metabolizes the quinone structures contained in both amrubicin (AMR) and amrubicinol (AMR-OH). We hypothesized that NQO1 C609T polymorphism may affect AMR-related pharmacokinetics and clinical outcomes. Methods: Patients received AMR doses of 30 or 40 mg/m2/day on days 1-3. Plasma sampling was performed 24 hours after the first and third AMR injections. Concentrations of AMR and AMR-OH were determined by HPLC and the NQO1 C609T polymorphism was assayed by RT-PCR. Results: A total of 35 patients were enrolled. At a dose of 40 mg/m2, the T/T genotype exhibited a tendency toward a relationship with decrease concentrations of AMR-OH on days 2 and 4. The genotype also showed a significant decrease of hematological toxicities (P < 0.05). Conclusions: NQO1 C609T polymorphism had a tendency of correlation with the plasma concentrations of AMR-OH, and thereby had significant correlations with hematologic toxicities.
- Subjects
JAPAN; PATIENT monitoring; ACADEMIC medical centers; ANALYSIS of variance; ANTHRACYCLINES; BLOOD testing; CREATININE; ECHOCARDIOGRAPHY; ELECTROCARDIOGRAPHY; GENES; GENETIC polymorphisms; HIGH performance liquid chromatography; LUNG tumors; PHYSICAL diagnosis; POLYMERASE chain reaction; RESEARCH funding; T-test (Statistics); EQUIPMENT &; supplies; DATA analysis software; DESCRIPTIVE statistics; THERAPEUTICS
- Publication
Clinical Medicine Insights: Oncology, 2013, Issue 7, p31
- ISSN
1179-5549
- Publication type
Article
- DOI
10.4137/CMO.S10839