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Using a GFP-tagged TMEM184A Construct for Confirmation of Heparin Receptor Identity

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Published on: February 17, 2017

Heparanase - Discovery and Targets.

Ulf Lindahl¹, Jin-Ping Li²

¹Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden. Ulf.Lindahl@imbim.uu.se.

Advances in Experimental Medicine and Biology

|April 11, 2020

Summary

This summary is machine-generated.

Heparanase, an enzyme breaking down heparan sulfate, was discovered in mast cells. This enzyme plays roles in various diseases and unexpectedly influences heparan sulfate biosynthesis.

Keywords:

Biosynthesis Heparan sulfate Heparanase Heparin

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Area of Science:

Biochemistry
Molecular Biology
Cell Biology

Background:

Heparanase was discovered during research on heparin proteoglycans in mast cells.
Newly synthesized polysaccharide chains were rapidly degraded into smaller fragments.
Degradation products indicated heparanase acts as an endo-ßD-glucuronidase.

Purpose of the Study:

To identify and characterize the enzyme responsible for heparan sulfate degradation.
To understand the role of heparanase in pathophysiological processes.
To investigate the enzyme's influence on heparan sulfate biosynthesis.

Main Methods:

Analysis of degradation products from newly synthesized polysaccharide chains.
Enzyme activity assays to confirm endo-ßD-glucuronidase function.
Identification of heparanase in various tissues and cell types.

Main Results:

Heparanase was identified as an endo-ßD-glucuronidase.
The enzyme is involved in the degradation of extracellular heparan sulfate proteoglycans.
Heparanase overexpression leads to the production of highly sulfated, heparin-like oligosaccharides.

Conclusions:

Heparanase is a key enzyme in heparan sulfate metabolism.
The enzyme is implicated in cancer, inflammatory diseases, and amyloidosis.
The precise mechanism by which heparanase influences heparan sulfate biosynthesis requires further investigation.