Evaluation of a galactose-carrying gelatin sponge for hepatocytes culture and transplantation.
This study proposes a new three-dimensional culture of mouse hepatocytes in a porous galactose-carrying modified gelatin sponge matrix. The modification of gelatin using galactose residues significantly increased the attachment of hepatocytes on the substrate. A modified gelatin sponge with lactobionic acid (MGLA) was prepared to increase the specific interaction between the hepatocytes and the matrix. Hepatocytes cultured in a three-dimensional MGLA sponge released much less lactate dehydrogenase than those cultured on a collagen Type I-coated monolayer. Moreover, the survival rate of hepatocytes cultured on an MGLA sponge was longer than the survival rate of hepatocytes cultured on a collagen Type I-coated monolayer. Hepatic specific metabolic functions, namely, the secretion of serum albumin and the synthesis of urea, were well maintained and promoted by spheroidal hepatocytes formed in the MGLA sponge.
Hong
Sung Ran
SR
School of Chemical Engineering, College of Engineering, Hanyang University, Seungdong-ku, Seoul, 133-791, Korea.
Lee
Young Moo
YM
Akaike
Toshihiro
T
D000818:Animals; D002448:Cell Adhesion / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D046508:Culture Techniques / Q000379:methods; D004187:Disaccharides; D005690:Galactose / Q000494:pharmacology*; D005781:Gelatin Sponge, Absorbable / Q000737:chemistry* / Q000494:pharmacology; D022781:Hepatocytes / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D019164:Liver, Artificial; D008297:Male; D051379:Mice; D012709:Serum Albumin / Q000378:metabolism; D018874:Spheroids, Cellular / Q000166:cytology / Q000187:drug effects; D014508:Urea / Q000378:metabolism
D004187:Disaccharides; D012709:Serum Albumin; C005608:lactobionic acid; D014508:Urea; D007770:L-Lactate Dehydrogenase; D005690:Galactose