The《Cell Research》 will publish papers written in English in all branches of animal and plant cell biology. Manuscripts must be written in a clear and concise style. The principle criteria for acceptance are originality and scientific excellence. Manuscripts will be published free of charge (except color prints) within six months after their final acceptance. Papers judged by two referees and a member of the Editorial Board to be inappropriate for the Journal’s scope and content are returned to authors within two months. One original and two copies of each manuscript should be submitted. Manuscripts are requsted to be addressed to: Professor Zhen YAO, Editor-in-chief, Shanghai Institute of Cell Biology, Academia Sinica. 320 Yue Yang Rd., Shanghai 200031, China or Ms. Ailan CHANG, Secretary of the Editorial Board of Cell Research, Shanghai Institute of Cell Biology,Academia Sinica. 320 Yue Yang Rd., Shanghai 200031, China. The “Cell Research” will publish papers written in English in all branches of animal and plant cell biology. Manuscripts must be written in a clear and concise style. The principle criteria for acceptance are originality and scientific excellence. (except color prints) within six months after their final acceptance. Papers judged by two referees and a member of the Editorial Board to be inappropriate for the Journal’s scope and content are returned to authors within two months. One original and two copies of each manuscript should be submitted. Professor Zhen YAO, Editor-in-chief, Shanghai Institute of Cell Biology, Academia Sinica. 320 Yue Yang Rd., Shanghai 200031, China or Ms. Ailan CHANG, Secretary of the Editorial Board of Cell Research, Shanghai Institute of Cell Biology, Academia Sinica. 320 Yue Yang Rd., Shanghai 200031, China.