本文作者曾证明,人白细胞和鼠淋巴样细胞培养的上清液,体外具有增加同种特异性鼠胞毒性细胞产生的能力。近来又报告,鼠胸腺细胞有丝分裂因子(TMF)用层析法不能与增加 B 细胞反应因子(TRF 即 T 细胞置换因子)和杀伤细胞辅助因子(KHF)分离开来。此外,还提出,与 TMF 或 TRF无关的第二种 KHF,存在于 Con A 诱导的脾细胞培养的上清液中。围绕这些问题,作者对干扰素 The authors have demonstrated that supernatant cultures of human leukocytes and murine lymphoid cells have the capacity to increase the production of allogenic specific murine cytotoxic cells in vitro. Recently, it has also been reported that the chromatin of murine thymocyte mitosis factor (TMF) can not be separated from the increase of B cell response factor (TRF) or killer cell cofactor (KHF). In addition, it is also proposed that a second KHF unrelated to TMF or TRF is present in the supernatant of Con A-induced spleen cell culture. Around these questions, the author of the interferon