Acta Chimica Sinica ›› 2023, Vol. 81 ›› Issue (7): 843-856.DOI: 10.6023/A23020040 Previous Articles     Next Articles


化学生物学解析疾病中O-GlcNAc糖基化功能: 研究工具与策略

张娜娜, 于恺然, 李际婷, 张嘉宁, 刘宇博*()   

  1. 大连理工大学 生命科学与药学学院 盘锦 122406
  • 投稿日期:2023-02-19 发布日期:2023-06-07
  • 作者简介:

    张娜娜, 大连理工大学生物工程专业在读博士生, 研究方向为O-GlcNAc糖基化修饰与肿瘤生物学行为.

    刘宇博, 大连理工大学生命科学与药学学院副教授, 博士生导师, 主要研究方向为化学糖生物学和肿瘤糖生物学. 以化学生物学和糖生物学交叉融合为手段, 开发高效、低毒糖探针, 发展化学糖组学研究新策略. 2014年大连理工大学生物化工专业博士毕业, 以第一作者或通讯作者在Nature Communications, Journal of Biological Chemistry, Cell death & Disease等期刊发表研究论文30余篇, 主持国家自然科学基金3项, 辽宁省自然科学基金3项.

  • 基金资助:
    国家自然科学基金(21975163); 国家自然科学基金(32171282)

Application of Chemical Biology to Reveal the Function of O-GlcNAcylation in Diseases: Research Tools and Tactics

Nana Zhang, Kairan Yu, Jiting Li, Jianing Zhang, Yubo Liu()   

  1. School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin 122406, China
  • Received:2023-02-19 Published:2023-06-07
  • Contact: *E-mail:
  • Supported by:
    National Natural Science Foundation of China(21975163); National Natural Science Foundation of China(32171282)

The addition of O-linked-β-N-acetylglucosamine (O-GlcNAc) onto serine and threonine residues of nuclear and cytoplasmic proteins is an abundant and unique post-translational modification that plays a critical role in governing important biological processes. Since its discovery, O-GlcNAcylation has been shown to contribute to numerous cellular processes, including signaling, protein localization and stability, transcription, chromatin remodeling, mitochondrial function, and cell survival. O-GlcNAcylation is a dynamic and reversible post-translational modification that regulates protein function in a site-specific manner, making it an important player in the regulation of diverse biological processes. Dysregulation of O-GlcNAcylation has been implicated in the pathogenesis of various diseases, including cancer, neurodegenerative disorders, and diabetes. To better understand the regulatory roles of O-GlcNAcylation in cellular physiology and disease pathogenesis, O-GlcNAc proteomics strategies and more specialized, more exact research tools are needed to further explore the bio-functional systematization of O-GlcNAcylation. In recent years, the field of chemical biology has developed various tools and methods for analyzing O-GlcNAc glycosylation, including small molecule sugar probes, metabolic labeling reagents, chemoenzymatic techniques, specific antibodies, and lectins. These tools have served as a foundation for the further development of O-GlcNAc glycoproteomic research strategies. O-GlcNAc glycoproteomic strategies, such as high-resolution mass spectrometry-based approaches have been developed to allow for the detection and quantification of O-GlcNAc modifications on specific proteins, enabling site-specific analysis of O-GlcNAc modification patterns. The number of proteins modified by O-GlcNAc is quite extensive, with at least 7000 modification sites identified in human cells. This highlights the importance of O-GlcNAcylation in regulating diverse biological processes. Identification of O-GlcNAcylation sites with specific biological functions is still a remaining problem. Innovative solutions are required to address this challenge in cell models and disease therapy. At the same time, with the aid of high-resolution mass spectrometry, a large number of O-GlcNAc modification sites on proteins have been identified, which has greatly promoted the study of site-specific O-GlcNAc biological functions. This article has reviewed the recent advances in the field of O-GlcNAc research, with the aim of providing a basis for the development of more chemical tools and offering new research ideas and strategies for uncovering the functions of O-GlcNAcylation in disease progression.

Key words: O-GlcNAcylation, chemical biology, molecular tools, glycoproteomics