FoxO3a gene down-regulation in pathogenesis of pediatric acute lymphoblastic leukemia
Introduction: Acute lymphoblastic leukemia (ALL) is the most common malignancy found in the pediatrics with the peak prevalence between the ages of 2 and 5 years. The constitutive activation of PI3K/AKT pathway inhibits the tumor-suppressor role of FoxO3a (a member of the forkhead class O [FoxO] tra...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Thieme Medical and Scientific Publishers Pvt. Ltd.
2019-01-01
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| Series: | Indian Journal of Medical and Paediatric Oncology |
| Subjects: | |
| Online Access: | http://www.ijmpo.org/article.asp?issn=0971-5851;year=2019;volume=40;issue=3;spage=381;epage=385;aulast=Mirzaie |
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| Summary: | Introduction: Acute lymphoblastic leukemia (ALL) is the most common malignancy found in the pediatrics with the peak prevalence between the ages of 2 and 5 years. The constitutive activation of PI3K/AKT pathway inhibits the tumor-suppressor role of FoxO3a (a member of the forkhead class O [FoxO] transcription factor family) in a variety of cancers and leads to tumorigenesis. This study aims to investigate the expression of FoxO3a in three different stages of pediatric ALL in mRNA level. Subjects and Methods: In this case-control study, 70 patients with childhood ALL and 70 healthy age- and gender-matched as the control group were enrolled. Real-time quantitative RT-polymerase chain reaction (qRT-PCR) was used to detect the mRNA expression level of FoxO3a in children with different stages of ALL and healthy children as a control group. Results: Data showed that the expression of FoxO3a mRNA was lower in newly diagnosed ALL patients compared to controls (P < 0.0001), maintenance (P = 0.0342), and relapse (P = 0.0006) groups, while no difference was observed between other groups. In addition, T-ALL patients showed decreased expression of FoxO3a compared to Pre-B ALL ones (P < 0.0001). Conclusion: The study results suggest that FoxO3a plays a tumor-suppressor role in ALL. Thus, its up-regulation seems to be a plausible therapeutic strategy for this type of tumor. |
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| ISSN: | 0971-5851 0975-2129 |