摘要:
An improved process for producing a regenerated corneal endothelial cell sheet, comprising the steps of allowing corneal endothelial cells collected from a tissue to be cultivated on a cell culture support having its surface covered with a polymer of which the hydrating force varies in a temperature range of 0-80° C., and after the culture,(1) adjusting the temperature of the culture solution to the temperature at which the polymer on the substrate surface is hydrated,(2) bringing the cultured corneal endothelial cell sheet into close contact with a carrier, and(3) detaching the sheet together with the carrier.The regenerated corneal endothelial cell sheet obtained by the process will adhere very well to living tissues.
摘要:
An object of the invention is to provide a collagen crosslinking agent superior in biocompatibility that is free from the damage by UV irradiation and also from the problems of toxicity caused by residual monomer or unreacted functional groups.[Means to Solve] Provided is a noncovalent collagen crosslinking agent (for fibrous protein collagen), comprising a spacer of a polyvalent alcohol having two or more OH groups at the terminals and arms of collagen peptides formed of repetitions of three amino acids, the arms being bound via the OH groups to the spacer.
摘要:
An improved process for producing a regenerated corneal endothelial cell sheet, comprising the steps of allowing corneal endothelial cells collected from a tissue to be cultivated on a cell culture support having its surface covered with a polymer of which the hydrating force varies in a temperature range of 0-80° C., and after the culture, (1) adjusting the temperature of the culture solution to the temperature at which the polymer on the substrate surface is hydrated, (2) bringing the cultured corneal endothelial cell sheet into close contact with a carrier, and (3) detaching the sheet together with the carrier. The regenerated corneal endothelial cell sheet obtained by the process will adhere very well to living tissues.
摘要:
The present invention has as its objective providing acorneal epithelium forming cell sheet that will adhere well to an anterior segment tissue. To attain this objective, a corneal epithelium forming cell sheet is produced by a process comprising the steps of cultivating under specified conditions corneal epithelium forming cells on a cell culture support comprising a substrate having its surface covered with a temperature responsive polymer of which the hydrating force varies in a temperature range of 0-80° C., optionally stratifying the layer of cultured cells, and thereafter, (1) adjusting the temperature of the culture solution to either above an upper critical dissolution temperature or below a lower critical dissolution temperature, (2) bringing the cultured corneal epithelium forming cells into close contact with a carrier, and (3) detaching the sheet together with the carrier under specified conditions.