CellSeed Inc. develops regenerative medicine products primarily in Japan and internationally. It is involved in the research, development, and commercialization of cell-sheet regenerative medicine products, such as epithelial cell sheet for esophageal regeneration, regenerated cartilage sheet, and chondrocyte sheet for the treatment of knee osteoarthritis. The company also offers UpCell, a temperature-responsive cell cultureware for cell-sheet engineering; RepCell, a temperature-responsive cell cutureware for cell collection; and HydroCell, a low cell binding cultureware. In addition, it provides contract development and manufacturing services. The company was founded in 2001 and is headquartered in Tokyo, Japan.