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Journal of Cancer Research and Clinical Oncology

Erschienen in:

03.09.2020 | Original Article – Cancer Research

High Wilms’ tumor 1 associating protein expression predicts poor prognosis in acute myeloid leukemia and regulates m⁶A methylation of MYC mRNA

verfasst von: Duolan Naren, Tianyou Yan, Yuping Gong, Jingcao Huang, Dan Zhang, Lina Sang, Xue Zheng, Yarong Li

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 1/2021

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Abstract

Purpose

Acute myeloid leukemia (AML) is a heterogenous disease and the survival of AML patients is largely attributed to the improvement of supportive treatment. Wilms’ tumor 1-associated protein (WTAP) is a nuclear protein functions in many physiological and pathological processes. Although its expression and function in many malignant diseases have been reported, its prognostic and epigenetic roles in AML are largely unknown.

Methods

Peripheral blood or bone marrow samples were collected from AML patients. The WTAP expression was detected by western blot. WTAP expression level and patients clinical features were analyzed using statistical methods. WTAP knockdown AML cells were constructed. The experiments on proliferation, tumorigenic ability, cell cycle, and apoptosis were performed. Transcriptome sequencing was performed and analyzed. M⁶A methylation level was measured and m⁶A-RIP was performed to quantify m⁶A methylation level of MYC mRNA. RNA stability assay was performed to measure the half-life of mRNA.

Results

WTAP was overexpressed in AML patients and was an independent poor-risk factor in AML (p = 0.0140). Moreover, we found that WTAP regulated proliferation, tumorigenesis, cell cycle, and differentiation of AML cells. Furthermore, WTAP made AML cells resistant to daunorubicin. In further investigations, m⁶A methylation level was downregulated when knocking down WTAP, and c-Myc was upregulated due to the decreased m⁶A methylation of MYC mRNA.

Conclusion

High WTAP expression predicts poor prognosis in AML and WTAP plays an epigenetic role in AML.

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Titel: High Wilms’ tumor 1 associating protein expression predicts poor prognosis in acute myeloid leukemia and regulates m6A methylation of MYC mRNA
verfasst von: Duolan Naren
Tianyou Yan
Yuping Gong
Jingcao Huang
Dan Zhang
Lina Sang
Xue Zheng
Yarong Li
Publikationsdatum: 03.09.2020
Verlag: Springer Berlin Heidelberg
Erschienen in: Journal of Cancer Research and Clinical Oncology / Ausgabe 1/2021
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI: https://doi.org/10.1007/s00432-020-03373-w

Springer Medizin

High Wilms’ tumor 1 associating protein expression predicts poor prognosis in acute myeloid leukemia and regulates m⁶A methylation of MYC mRNA