Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
ISSN-L : 0918-6158
Regular Articles
Development of Low Endotoxin Gelatin for Regenerative Medicine
Yoshitaka KanayamaChizuru AokiYasuo Sakai
ジャーナル フリー

2007 年 30 巻 2 号 p. 237-241


The basic concept of tissue engineering, an actively applied technology in regenerative medicine, is the coordination between cells, scaffolds, and proliferation factors. Collagen and gelatin are materials that have mostly been used as scaffolds because of their excellent affinity for cells, they are biodegradable, and their ability to form gel. However, very few of the collagen or gelatin preparations used as tissue engineering material have been prepared with low levels of endotoxin, which may trigger fever, shock and a fall in blood pressure even in very minute quantities. Therefore we decided to decrease the content of endotoxin in gelatin so that this biomaterial is not harmful to the body but still maintains its properties, namely, bioaffinity and biodegradation for use in the fields of cell culture and regenerative medicine. In this paper, we describe a method whereby endotoxin could be removed from gelatin solution by using an ultrafiltration membrane with a molecular weight cut-off of 100 kDa and low endotoxin gelatin, endotoxin activity in 0.1% gelatin solution was below 0.03 EU/ml, was obtained as the resulting filtrate solution.

© 2007 The Pharmaceutical Society of Japan
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