GSTM1 null and GSTT1 null: predictors of cisplatin-caused acute ototoxicity measured by DPOAEs
| Autor: | Márta Szőnyi, Erika Kovács, Krisztina Bíró, Dániel J. Erdélyi, László Noszek, Barna Budai, Lajos Géczi, Péter Prekopp |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Oncology medicine.medical_specialty Genotype Acute ototoxicity Logistic regression 03 medical and health sciences GSTP1 0302 clinical medicine Testicular cancer Gene Frequency Testicular Neoplasms Ototoxicity Internal medicine Drug Discovery medicine DPOAEs Humans Prospective Studies GST polymorphisms Genetics (clinical) Glutathione Transferase 030304 developmental biology Cisplatin 0303 health sciences Polymorphism Genetic medicine.diagnostic_test business.industry Hearing Tests Null (mathematics) Neoplasms Germ Cell and Embryonal medicine.disease Germ Cells Case-Control Studies 030220 oncology & carcinogenesis Molecular Medicine Hearing test Original Article business Biomarkers medicine.drug |
| Zdroj: | Journal of Molecular Medicine (Berlin, Germany) |
| ISSN: | 1432-1440 0946-2716 |
| Popis: | Abstract Preventing the ototoxicity caused by cisplatin is a major issue yet to be overcome. Useful preventive treatments will soon be available. Consequently, the next step is to filter out those patients who are more prone to develop ototoxicity. The aim of this study was to prospectively evaluate potential predictive markers of acute ototoxicity as determined by measures of distortion product otoacoustic emissions (DPOAEs). A total of 118 patients from our previous DPOAE analysis were put under evaluation. Ototoxic cases were divided according to unilateral (n = 45) or bilateral (n = 23) involvement. The clinicopathological characteristics, hearing test results, germline GSTT1, GSTM1, and GSTP1 polymorphisms, and common laboratory parameters were included in the new analysis. Univariate and multivariate statistical tests were applied. According to multivariate logistic regression, the only independent predictor of unilateral ototoxicity (vs. non-affected) was a GSTM1 null genotype (OR = 4.52; 95%CI = 1.3–16.3), while for bilateral damage, the GSTT1 null genotype (OR = 4.76; 1.4–16) was a predictor. The higher starting serum urea level was characteristic of bilateral ototoxicity; however, the only independent marker of bilateral (vs. unilateral) ototoxicity was the presence of GSTT1 null genotype (OR = 2.44; 1.23–4.85). Different processes, involving the GSTM1 and GSTT1 genotypes, respectively, govern the development of acute unilateral and bilateral ototoxicities. Further research is needed to clarify these processes. Based on the above findings, patients whom are at risk may be selected for otoprotective therapies. Key messages The acute ototoxicity was determined by DPOAE in 118 testicular cancer patients. GSTM1 null was the only marker of unilateral ototoxicity (vs. non-affected). The only marker of bilateral hearing loss (vs. non-affected) was the GSTT1 null. GSTT1 null was also the marker of bilateral vs. unilateral ototoxicity. A high-risk group may be selected for new, individualized otoprotective treatment. |
| Databáze: | OpenAIRE |
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