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N 6-Methyladenosine modification: a novel pharmacological target for anti-cancer drug development.

ABSTRACT: N 6-Methyladenosine (m6A) modification is the most pervasive modification of human mRNA molecules. It is reversible via regulation of m6A modification methyltransferase, demethylase and proteins that preferentially recognize m6A modification as "writers", "erasers" and "readers", respectively. Altered expression levels of the m6A modification key regulators substantially affect their function, leading to significant phenotype changes in the cell and organism. Recent studies have proved that the m6A modification plays significant roles in regulation of metabolism, stem cell self-renewal, and metastasis in a variety of human cancers. In this review, we describe the potential roles of m6A modification in human cancers and summarize their underlying molecular mechanisms. Moreover, we will highlight potential therapeutic approaches by targeting the key m6A modification regulators for cancer drug development.

SUBMITTER: Niu Y

PROVIDER: S-EPMC6251950 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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N 6-Methyladenosine modification: a novel pharmacological target for anti-cancer drug development.

Niu Yi Y Wan Arabella A Lin Ziyou Z Lu Xiongbin X Wan Guohui G

Acta pharmaceutica Sinica. B 20180606 6

N 6-Methyladenosine (m6A) modification is the most pervasive modification of human mRNA molecules. It is reversible via regulation of m6A modification methyltransferase, demethylase and proteins that preferentially recognize m6A modification as "writers", "erasers" and "readers", respectively. Altered expression levels of the m6A modification key regulators substantially affect their function, leading to significant phenotype c ...[more]

PMID: 30505654

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Project description:Cancer cells share several properties, high proliferation potential, reprogramed metabolism, and resistance to apoptotic cues. Acquiring these hallmarks involves changes in key oncogenes and non-oncogenes essential for cancer cell survival and prosperity, and is accompanied by the increased energy requirements of proliferating cells. Mitochondria occupy a central position in cell life and death with mitochondrial bioenergetics, biosynthesis, and signaling are critical for tumorigenesis. Voltage-dependent anion channel 1 (VDAC1) is situated in the outer mitochondrial membrane (OMM) and serving as a mitochondrial gatekeeper. VDAC1 allowing the transfer of metabolites, fatty acid ions, Ca2+, reactive oxygen species, and cholesterol across the OMM and is a key player in mitochondrial-mediate apoptosis. Moreover, VDAC1 serves as a hub protein, interacting with diverse sets of proteins from the cytosol, endoplasmic reticulum, and mitochondria that together regulate metabolic and signaling pathways. The observation that VDAC1 is over-expressed in many cancers suggests that the protein may play a pivotal role in cancer cell survival. However, VDAC1 is also important in mitochondria-mediated apoptosis, mediating release of apoptotic proteins and interacting with anti-apoptotic proteins, such as B-cell lymphoma 2 (Bcl-2), Bcl-xL, and hexokinase (HK), which are also highly expressed in many cancers. Strategically located in a "bottleneck" position, controlling metabolic homeostasis and apoptosis, VDAC1 thus represents an emerging target for anti-cancer drugs. This review presents an overview on the multi-functional mitochondrial protein VDAC1 performing several functions and interacting with distinct sets of partners to regulate both cell life and death, and highlights the importance of the protein for cancer cell survival. We address recent results related to the mechanisms of VDAC1-mediated apoptosis and the potential of associated proteins to modulate of VDAC1 activity, with the aim of developing VDAC1-based approaches. The first strategy involves modification of cell metabolism using VDAC1-specific small interfering RNA leading to inhibition of cancer cell and tumor growth and reversed oncogenic properties. The second strategy involves activation of cancer cell death using VDAC1-based peptides that prevent cell death induction by anti-apoptotic proteins. Finally, we discuss the potential therapeutic benefits of treatments and drugs leading to enhanced VDAC1 expression or targeting VDAC1 to induce apoptosis.

Dataset Information

N 6-Methyladenosine modification: a novel pharmacological target for anti-cancer drug development.

Publications

<i>N</i> <sup>6</sup>-Methyladenosine modification: a novel pharmacological target for anti-cancer drug development.

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