A subpopulation of bone marrow cells depleted by a novel antibody, anti-Liv8, is useful for cell therapy to repair damaged liver |
| |
Authors: | Yamamoto Naoki Terai Shuji Ohata Shinya Watanabe Tomomi Omori Kaoru Shinoda Koh Miyamoto Koji Katada Toshiaki Sakaida Isao Nishina Hiroshi Okita Kiwamu |
| |
Affiliation: | Department of Molecular Science and Applied Medicine (Gastroenterology and Hepatology), Yamaguchi University School of Medicine, Minami Kogushi 1-1-1, Ube, Yamaguchi 755-8505, Japan. |
| |
Abstract: | We previously reported a new in vivo model named as "GFP/CCl(4) model" for monitoring the transdifferentiation of green fluorescent protein (GFP) positive bone marrow cell (BMC) into albumin-positive hepatocyte under the specific "niche" made by CCl(4) induced persistent liver damage, but the subpopulation which BMCs transdifferentiate into hepatocytes remains unknown. Here we developed a new monoclonal antibody, anti-Liv8, using mouse E 11.5 fetal liver as an antigen. Anti-Liv8 recognized both hematopoietic progenitor cells in fetal liver at E 11.5 and CD45-positive hematopoietic cells in adult bone marrow. We separated Liv8-positive and Liv8-negative cells and then transplanted these cells into a continuous liver damaged model. At 4 weeks after BMC transplantation, more efficient repopulation and transdifferentiation of BMC into hepatocytes were seen with Liv8-negative cells. These findings suggest that the subpopulation of Liv8-negative cells includes useful cells to perform cell therapy on repair damaged liver. |
| |
Keywords: | Bone marrow cell Cell therapy Regenerative medicine Hepatic stem cell Migration Transdifferentiation Mesenchymal stem cell Hematopoietic stem cell Liver regeneration Niche |
本文献已被 ScienceDirect PubMed 等数据库收录! |