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Article Publish Status: FREE
Abstract Title:

Saikosaponin D exhibits anti-leukemic activity by targeting FTO/mA signaling.

Abstract Source:

Theranostics. 2021 ;11(12):5831-5846. Epub 2021 Mar 31. PMID: 33897884

Abstract Author(s):

Kaiju Sun, Yangyang Du, Yuzhu Hou, Mingyue Zhao, Jiajia Li, Yazhe Du, Lingxiao Zhang, Changbao Chen, Hongmei Yang, Fei Yan, Rui Su

Article Affiliation:

Kaiju Sun

Abstract:

The implementation of targeted therapies for acute myeloid leukemia (AML) has been challenging. Fat mass and obesity associated protein (FTO), an mRNA N-methyladenosine (mA) demethylase, functions as an oncogene that promotes leukemic oncogene-mediated cell transformation and leukemogenesis. Here, we investigated the role of Saikosaponin-d (SsD) in broad anti-proliferation effects in AML and evaluated the mA demethylation activity by targeting FTO of SsD.It was examined whether and how SsD regulates FTO/mA signaling in AML. The pharmacologic activities and mechanisms of actions of SsD, in mice, primary patient cells, and tyrosine kinase inhibitors-resistant cells were determined.SsD showed a broadly-suppressed AML cell proliferation and promoted apoptosis and cell-cycle arrest bothand. Mechanistically, SsD directly targeted FTO, thereby increasing global mA RNA methylation, which in turn decreased the stability of downstream gene transcripts, leading to the suppression of relevant pathways. Importantly, SsD also overcame FTO/mA-mediated leukemia resistance to tyrosine kinase inhibitors.Our findings demonstrated that FTO-dependent mA RNA methylation mediated the anti-leukemic actions of SsD, thereby opening a window to develop SsD as an epitranscriptome-base drug for leukemia therapy.

Study Type : In Vitro Study

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