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In Situ Forming Hydrogel Composed of Hyaluronate and Polygalacturonic Acid for Prevention of Peridural Fibrosis

In Situ Forming Hydrogel Composed of Hyaluronate and Polygalacturonic Acid for Prevention of Peridural Fibrosis

Cheng-Yi Lin, Hsiu-Hui Peng, Mei-Hsiu Chen, Jui-Sheng Sun, Tse-Ying Liu, Ming-Hong Chen

J Mater Sci Mater Med. 2015 Apr;26(4):168.

PMID: 25791456

Abstract:

Hyaluronic acid-based hydrogels can reduce postoperative adhesion. However, the long-term application of hyaluronic acid is limited by tissue mediated enzymatic degradation. To overcome this limitation, we developed a polygalacturonic acid and hyaluronate composite hydrogel by Schiff's base crosslinking reaction. The polygalacturonic acid and hyaluronate composite hydrogels had short gelation time (less than 15 s) and degraded by less than 50 % in the presence of hyaluronidase for 7 days. Cell adhesion and migration assays showed polygalacturonic acid and hyaluronate composite hydrogels prevented fibroblasts from adhesion and infiltration into the hydrogels. Compared to hyaluronate hydrogels and commercial Medishield™ gels, polygalacturonic acid and hyaluronate composite hydrogel was not totally degraded in vivo after 4 weeks. In the rat laminectomy model, polygalacturonic acid and hyaluronate composite hydrogel also had better adhesion grade and smaller mean area of fibrous tissue formation over the saline control and hyaluronate hydrogel groups. Polygalacturonic acid and hyaluronate composite hydrogel is a system that can be easy to use due to its in situ cross-linkable property and potentially promising for adhesion prevention in spine surgeries.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP25990107	Polygalacturonic acid		25990-10-7	Price

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