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O-GlcNAcylation: Implications in normal and malignant hematopoiesis
Hideaki Nakajima1, Koichi Murakami1
1Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Experimental Hematology
|July 24, 2021
Summary
O-GlcNAcylation, a dynamic protein modification, is crucial for regulating diverse biological processes. Aberrant O-GlcNAcylation impacts hematopoiesis and is linked to blood cancers.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- O-GlcNAcylation is a dynamic posttranslational modification adding O-linked β-N-acetyl-D-glucosamine to proteins.
- This process is catalyzed by O-GlcNAc transferase and O-GlcNAcase, regulating gene expression, metabolism, and cell signaling.
- It responds to metabolic status, nutrient availability, and stress.
Purpose of the Study:
- To review the significance of O-GlcNAcylation in normal physiology and disease.
- To highlight the critical roles of O-GlcNAcylation in hematopoiesis.
- To discuss the implications of aberrant O-GlcNAcylation in hematologic malignancies.
Main Methods:
- Literature review of studies on O-GlcNAcylation.
- Analysis of O-GlcNAcylation's role in various biological processes.
- Examination of O-GlcNAcylation's involvement in hematopoietic cells and malignancies.
Main Results:
- O-GlcNAcylation is a fundamental regulator of gene expression, cell cycle, metabolism, and proteostasis.
- It plays essential and pleiotropic roles in the differentiation, proliferation, and function of hematopoietic cells.
- Aberrant O-GlcNAcylation is implicated in hematologic malignancies due to dysregulated epigenetics, metabolism, and transcription.
Conclusions:
- O-GlcNAcylation is a key regulator of normal hematopoiesis.
- Dysregulated O-GlcNAcylation is associated with the development of blood cancers.
- Understanding O-GlcNAcylation offers insights into hematologic disorders.
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