Prognostic significance of MDM2 gene expression in childhood neuroblastoma
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
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Prognostic significance of MDM2 gene expression in childhood neuroblastoma
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| Creator |
Inomistova, M.V.
Svergun, N.M. Khranovska, N.M. Skachkova, O.V. Gorbach, O.I. Klymnyuk, G.I. |
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Original contributions
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| Description |
Aim: To investigate the association of MDM2 expression at the mRNA levels in neuroblastoma with clinical features and unfavorable disease factors to determine the possibility of it usage as a prognostic marker of neuroblastoma. Materials and Methods: Total RNA and DNA were extracted from tumor tissue samples of total 91 neuroblastoma patients (mean age: 39.45 ± 4.81 months). MDM2 mRNA levels were detected with Q-PCR. TP53 gene deletion was detected with FISH method. MYCN amplification was detected with Q-PCR analysis in fresh tumor samples and FISH in FFPE samples. Results: We investigated the association of MDM2 mRNA expression with clinical outcome in neuroblastoma patients (n = 91). Kaplan — Meier curves showed a significant association of high MDM2 expression with poor event-free survival (p < 0.001). Clinical outcome of patients without MYCN amplification with low MDM2 expression was associated with better event-free survival than with high MDM2 expression (p < 0.001). Overexpression of MDM2 can be used as significant prognostic marker for patient stratification on risk groups and treatment optimization. Conclusion: Our results showed that the high expression of MDM2 at mRNA levels is an important factor of neuroblastoma prognosis. It may be a valuable additional molecular marker in guiding specific therapy in MYCN non-amplified NB patients without TP53 gene deletion. Key Words: neuroblastoma, MDM2 mRNA expression, MYCN gene amplification, p53/MDM2 interaction.
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| Date |
2019-01-22T11:05:58Z
2019-01-22T11:05:58Z 2015 |
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| Type |
Article
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| Identifier |
Prognostic significance of MDM2 gene expression in childhood neuroblastoma / M.V. Inomistova, N.M. Svergun, N.M. Khranovska, O.V. Skachkova, O.I. Gorbach, G.I. Klymnyuk // Experimental Oncology. — 2015. — Т. 37, № 2. — С. 111-115. — Бібліогр.: 15 назв. — англ.
1812-9269 http://dspace.nbuv.gov.ua/handle/123456789/145465 |
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| Language |
en
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| Relation |
Experimental Oncology
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| Publisher |
Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України
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