Identification of myo-inositol-binding proteins by using the biotin pull-down strategy in cultured cells.
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2022-06
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Metabolites are not only substrates in metabolic reactions, but they also serve as signaling molecules to regulate diverse biological functions. Identification of the binding proteins for the metabolites helps in the understanding of their functions beyond the classic metabolic pathways in which they are involved. We provide the protocol for synthesizing the biotin-labeled myo-inositol, which is used to identify its binding proteins by using biotin pull-down assay, given there is no available tool for the rapid screening of inositol-binding proteins in cells and in vitro systems. Biotin-labeled inositol probe therefore provides a tool to identify inositol's sensors. For complete details on the use and execution of this protocol, please refer to Hsu et al. (2021).
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Hsu, Che-Chia, Zhi-Gang Xu, Jie Lei, Zhong-Zhu Chen, Hong-Yu Li and Hui-Kuan Lin (2022). Identification of myo-inositol-binding proteins by using the biotin pull-down strategy in cultured cells. STAR protocols, 3(2). p. 101385. 10.1016/j.xpro.2022.101385 Retrieved from https://hdl.handle.net/10161/30659.
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Scholars@Duke
Che-Chia Hsu
My research has focused on mitochondrial functions in cancer metabolism and understand the role of mitochondrial dynamics in cellular function and human diseases including cancers. Additionally, I also continuously dissect cancer metabolism and identifying potential metabolic vulnerabilities of cancer initiation, progression and metastasis using several in vitro, ex vivo and in vivo genetical approaches such as CRISPR/Cas9 knockout, mouse/ human organoid cultures and genetically engineered mouse models, thereby characterizing molecular mechanisms regulated by metabolic pathways and developing potential metabolic interventions for targeting cancers.
Hui-Kuan Lin
The research interest in Dr. Lin lab is to understand oncogenic networks between oncogenes and tumor suppressor genes, dissect the regulatory mechanisms underlying the crosstalk between ageing and cancer, to unravel the role of posttranslational modifications (PTMs) such as ubiquitination and metabolism in diverse molecular and biological processes important for cancer progression and metastasis, cancer stem regulation, cancer immunity and drug resistance by using biochemical and molecular approaches along with and genetic mouse models, and finally to develop small molecule inhibitors and antibodies targeting critical oncogenic signaling and metabolic vulnerabilities for cancer treatment. His research goals aim to not only reveal fundamental insights and concepts for cancer biology and cancer immunity, but also develop novel paradigms and therapeutic strategies for targeting human cancer and overcoming drug resistance.
Research interests include:
- Crosstalk between oncogenic and tumor suppressor networks
- Posttranslational modifications in signaling and cancer
- Cancer progression and metastasis
- Biology of normal and cancer stem cells
- Metabolism in cancer and ageing
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