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Updated: Jun 9, 2025

Glycan Node Analysis: A Bottom-up Approach to Glycomics
Published on: May 22, 2016
Sugar symphony: glycosylation in cancer metabolism and stemness
Venkatesh Varadharaj1, Wyatt Petersen2, Surinder K Batra3
1Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA.
Abstract:
Glycosylation is a complex co-translational and post-translational modification (PTM) in eukaryotes that utilizes glycosyltransferases to generate a vast array of glycoconjugate structures. Recent studies have highlighted the role of glycans in regulating essential molecular, cellular, tissue, organ, and systemic biological processes with significant implications for human diseases, particularly cancer. The metabolic reliance of cancer, spanning tumor initiation, disease progression, and resistance to therapy, necessitates a range of uniquely altered cellular metabolic pathways. In addition, the intricate interplay between cell-intrinsic and -extrinsic mechanisms is exemplified by the communication between cancer cells, cancer stem cells (CSCs), cancer-associated fibroblasts (CAFs), and immune cells within the tumor microenvironment (TME). In this review article, we explore how differential glycosylation in cancer influences the metabolism and stemness features alongside new avenues in glycobiology.
Insights
Glycosylation, a key protein modification, significantly impacts cancer metabolism and stemness. Understanding these glycan changes offers new therapeutic strategies for cancer treatment.
Area of Science:
- Biochemistry
- Molecular Biology
- Cancer Research
Background:
- Glycosylation is a crucial eukaryotic modification generating diverse glycoconjugates.
- Aberrant glycosylation is increasingly recognized for its role in human diseases, especially cancer.
- Cancer cells exhibit altered metabolic pathways and complex interactions within the tumor microenvironment.
Purpose of the Study:
- To review the influence of differential glycosylation on cancer metabolism and stemness.
- To explore the interplay between glycosylation, cancer cell communication, and the tumor microenvironment.
- To highlight emerging avenues in glycobiology for cancer research.
Main Methods:
- Literature review of recent studies in glycosylation and cancer biology.
- Analysis of the role of glycosyltransferases in cancer.
- Exploration of the tumor microenvironment's components and their interaction with cancer cells.
Main Results:
- Differential glycosylation patterns are linked to altered cancer cell metabolism.
- Glycans play a role in cancer stem cell (CSC) properties and tumor initiation.
- Interactions between cancer cells, CSCs, cancer-associated fibroblasts (CAFs), and immune cells are modulated by glycosylation.
Conclusions:
- Glycosylation is a critical regulator of cancer's metabolic reprogramming and stemness.
- Targeting glycosylation pathways presents novel therapeutic opportunities in oncology.
- Further research in glycobiology is essential for advancing cancer treatment strategies.
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