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Low miR-192 expression predicts poor prognosis in pediatric acute myeloid leukemia
Chunmei Tian1, Lin Zhang2, Xiaohua Li1
1Department of Pediatrics, Affiliated Hospital of Binzhou Medical University, Binzhou 256603, Shandong, China.
Background:
Abnormal expression of miR-192 has been observed in a variety of human cancers, but the expression pattern of miR-192 and its prognostic value in pediatric acute myeloid leukemia (AML) is poorly known.
Objective:
This study was to explore the expression status of miR-192 and its clinical significance in pediatric patients with AML.
Methods:
Quantitative RT-PCR was carried out to detect miR-192 expression level in the serum from 97 AML cases and 50 healthy controls.
Results:
The results showed that downregulation of serum miR-192 was observed in pediatric AML patients and strongly correlated with aggressive clinical features. Increased serum miR-192 expression occurred more frequently in the AML subjects with favorable risk cytogenetics. Moreover, serum miR-192 expression showed good performance to screen pediatric AML subjects from normal controls. Furthermore, serum miR-192 was identified as a independent prognostic indicator for both overall survival and event free survival. In addition, low serum miR-192 expression significantly contributed to poor prognosis in the whole cohort of AML patients or the AML patients with intermediate-risk cytogenetics.
Conclusions:
Collectively, serum miR-192 potentially can be a reliable biomarker for the diagnosis and prognosis in pediatric AML.
Insights
Serum miR-192 is downregulated in pediatric acute myeloid leukemia (AML) and serves as a potential biomarker for diagnosis and prognosis. Low levels indicate a poorer outcome in pediatric AML patients.
Area of Science:
- Oncology
- Molecular Biology
- Biomarkers
Background:
- miR-192 abnormal expression is noted in various cancers.
- Its role in pediatric acute myeloid leukemia (AML) remains unclear.
Purpose of the Study:
- To investigate miR-192 expression in pediatric AML.
- To determine its clinical significance and prognostic value.
Main Methods:
- Quantitative RT-PCR used to measure serum miR-192 levels.
- Compared 97 pediatric AML cases with 50 healthy controls.
Main Results:
- Serum miR-192 was downregulated in pediatric AML patients.
- Downregulation correlated with aggressive clinical features and poor prognosis.
- miR-192 showed diagnostic potential and acted as an independent prognostic indicator.
Conclusions:
- Serum miR-192 is a potential biomarker for pediatric AML diagnosis.
- It can predict prognosis and survival outcomes in pediatric AML.
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