title: Cell-based therapy for preventing postoperative adhesion and promoting regeneration after hepatectomy.
abstract: Postoperative adhesion is a critical clinical issue after almost all abdominal or pelvic surgeries including liver surgery. Postoperative adhesion causes several complications, such as small bowel obstruction and chronic abdominal pain. Furthermore, it makes reoperation much more difficult, leading to increased mortality and morbidity rate. Postoperative adhesion is particularly problematic for repeated hepatectomy, since hepatic malignant neoplasm recurs frequently and repeated hepatectomy is widely used as one of the most curative treatments. Several treatments to reduce postoperative adhesion have been developed, which include laparoscopic surgery, administration of pharmacological agents and use of prophylactic barrier materials. However, none of them are optimal. We have proposed a novel treatment using a cell sheet of fetal liver mesothelial cells (FL-MCs) to prevent postoperative adhesion in a novel mouse model. Besides adhesion, repeated hepatectomy has another serious problem; although the liver has a remarkable ability to regenerate, the recovery of liver mass and function of the remnant liver after multiple repeated hepatectomy is limited. The FL-MC cell sheet enhances proliferation of hepatocytes after hepatectomy by providing growth factors for hepatocytes. Thus the FL-MC sheet could simultaneously solve the two problems associated with repeated hepatectomy.
authors: Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan.
authors: Natsuko F
authors: NF
authors: Inagaki
authors: Hepato-Biliary-Pancreatic Surgery Division, Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
authors: Fuyuki F
authors: FF
authors: Inagaki
authors: Hepato-Biliary-Pancreatic Surgery Division, Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
authors: Norihiro
authors: N
authors: Kokudo
authors: Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan. miyajima@iam.u-tokyo.ac.jp.
authors: Atsushi
authors: A
authors: Miyajima
mesh_terms: D000818:Animals; D064987:Cell- and Tissue-Based Therapy / Q000379:methods*; D004195:Disease Models, Animal; D016332:Fetal Tissue Transplantation / Q000379:methods*; D006498:Hepatectomy; D008115:Liver Regeneration / Q000502:physiology*; D051379:Mice; D011183:Postoperative Complications / Q000517:prevention & control*; D000267:Tissue Adhesions / Q000517:prevention & control*
keywords: Liver regeneration; Mesothelial cells; Postoperative adhesion