[1] Korea Univ, Coll Life Sci & Biotechnol, Lab Cell Growth & Funct Regulat, Seoul 136701, South Korea
[2] Imgen Co Ltd, Suwon, Gyenggi Do, South Korea
[3] Korea Univ, Coll Med, Dept Dermatol, Seoul 136705, South Korea
[4] Korea Univ, Coll Med, Dept Pathol, Seoul 136705, South Korea
[5] Chonnam Natl Univ, Inst Agr Sci & Technol, Dept Anim Sci, Kwangju, South Korea
[6] Yonsei Univ, Coll Med, Ctr Cell Therapy, Dept Physiol, Seoul, South Korea