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Cancer detection with sugar molecules

Date:
August 14, 2017
Source:
Julius-Maximilians-Universität Würzburg, JMU
Summary:
Scientists have synthesized a complex sugar molecule which specifically binds to the tumor protein Galectin-1. This could help to recognize tumors at an early stage and to combat them in a targeted manner.
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Scientists from the University of Würzburg have synthesized a complex sugar molecule which specifically binds to the tumor protein Galectin-1. This could help to recognize tumors at an early stage and to combat them in a targeted manner.

Galectins are a family of proteins that have become a promising source of cancer research in recent years. A representative thereof is galectin-1. It sits on the surface of all human cells; on tumor cells, however, it occurs in enormous quantities. This makes it an interesting target for diagnostics and therapy.

"Among other things, it is known that galectin-1 hides the tumor cells from the immune system," explains Professor Jürgen Seibel of the Institute of Organic Chemistry at the Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany. Recent studies have shown that when Galectin-1 is blocked, the immune system can recognize the tumor and attack it with T cells.

Sugar molecule with docking station

No wonder, therefore, that galectin-1 has become a major focus of research. Seibel and his colleague Dr. Clemens Grimm is interested in a very specific section of this protein, the so-called carbohydrate recognition domain. They have now designed a complex sugar molecule that fits perfectly into this domain, as the scientists report in journal ChemBioChem.

"We have equipped the sugar molecule with a docking site, for example, to connect it with a fluorescent dye or an drug," says Seibel. In addition, the scientists have described the binding of their molecule to galectin-1 with high-resolution X-ray structure analyzes.

"Our findings can serve the development of high-affinity ligands of the protein Galectin-1 and thus of new drugs," said Clemens Grimm.

Quick test for Galectin-1 in progress

Now the JMU scientists are working on a rapid test for the detection of galectin-1. It is designed to enable early detection of tumors such as neuroblastoma. For the future, Seibel's team would like to expand the sugar molecules into a kind of shuttle system that allows pharmaceutical agents to be transported directly to the tumors.


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Materials provided by Julius-Maximilians-Universität Würzburg, JMU. Note: Content may be edited for style and length.


Journal Reference:

  1. Nadja Bertleff-Zieschang, Julian Bechold, Clemens Grimm, Michael Reutlinger, Petra Schneider, Gisbert Schneider, Jürgen Seibel. Exploring the Structural Space of the Galectin-1-Ligand Interaction. ChemBioChem, 2017; 18 (15): 1477 DOI: 10.1002/cbic.201700251

Cite This Page:

Julius-Maximilians-Universität Würzburg, JMU. "Cancer detection with sugar molecules." ScienceDaily. ScienceDaily, 14 August 2017. <www.sciencedaily.com/releases/2017/08/170814125922.htm>.
Julius-Maximilians-Universität Würzburg, JMU. (2017, August 14). Cancer detection with sugar molecules. ScienceDaily. Retrieved February 21, 2024 from www.sciencedaily.com/releases/2017/08/170814125922.htm
Julius-Maximilians-Universität Würzburg, JMU. "Cancer detection with sugar molecules." ScienceDaily. www.sciencedaily.com/releases/2017/08/170814125922.htm (accessed February 21, 2024).

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