| 摘要 |
Human lymphotoxin is prepared substantially free of impurities by a process which comprises (a) obtaining an extract, supernatant or filtrate from a cell culture which produces lymphotoxin; (b) treating said extract, supernatant, or filtrate with a lentil lectin absorbant; (c) selectively eluting the lymphotoxin from the absorbant. The lymphotoxin or salts or derivatives thereof can be used in a pharmaceutical composition, e.g. for treating tumors. |
