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KMID : 1100720220420050585
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Annals of Laboratory Medicine
2022 Volume.42 No. 5 p.585 ~ p.589
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Overexpression of Prohibitin 2 Protein is Associated with Adverse Prognosis in Cytogenetically Normal Acute Myeloid Leukemia
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Lee Young-Eun
Lim Ha-Jin
Park Ju-Heon
Kim Hye-Ran
Kang Min-Gu
Cho Young-Kuk
Shin Jong-Hee
Shin Myung-Geun
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Abstract
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Cytogenetically normal acute myeloid leukemia (CN-AML) accounts for 40%?50% of all AML cases. Despite advances in understanding the molecular pathophysiology of CN-AML, its clinical outcome remains unsatisfactory and unpredictable. To investigate its clinical implication in CN-AML, we measured the expression of prohibitin 2 (PHB2) using immunohistochemical staining (IHCS) of paraffin-embedded bone marrow sections from 134 CN-AML patients. IHCS results were semi-quantitatively scored. Clinical outcome was analyzed in comparison with other prognostic markers, including NPM1 polymorphism and FLT3 internal tandem duplication, and WT1 and BAALC mRNA expression. Except for BAALC mRNA expression, the known molecular markers showed no prognostic effect in the CN-AML patients. PHB2 protein overexpression was significantly associated with adverse prognosis in CN-AML patients. The PHB2 protein expression status may serve as an independent prognostic indicator in CN-AML.
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KEYWORD
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Acute myeloid leukemia, Prohibitin 2, Prognosis
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