A high molecular weight cytotoxic lymphokine in supernatants of lymphokine-activated killer cells cross-reacts with transforming growth factor beta

Autor: Barbara Sterman, Dov Sulitzeanu, Sarit Larisch-Bloch
Rok vydání: 1990
Předmět:
Zdroj: Immunology Letters. 26:189-192
ISSN: 0165-2478
DOI: 10.1016/0165-2478(90)90144-f
Popis: Supernatants of lymphokine-activated killer (LAK) cells were highly cytotoxic for melanoma A375 cells. A high-molecular-weight fraction was isolated from such supernatants by gel filtration on an S-300 Sephacryl column (Fraction 1; Fr1). The cytotoxic activity in Fr1 was heat- and acid-resistant and was completely abolished by a rabbit antibody against TGF-β. We conclude that Fr1 contains TGF-β or a cross-reactive molecule, associated with a high-molecular-weight carrier.
Databáze: OpenAIRE