title: Both NK sensitive and resistant mycoplasma free cell lines stimulate release of NKCF.
mesh_terms: D000818:Animals; D002460:Cell Line; D003602:Cytotoxicity, Immunologic; D007694:Killer Cells, Natural / Q000276:immunology*; D055646:Killer Factors, Yeast; D051379:Mice; D009174:Mycoplasma / Q000302:isolation & purification; D009374:Neoplasms, Experimental / Q000276:immunology; D011506:Proteins / Q000378:metabolism*; D051381:Rats; D013154:Spleen / Q000276:immunology / Q000378:metabolism
chemical_list: D055646:Killer Factors, Yeast; D011506:Proteins