Hays E F, Goodrum D, Bessho M, Kitada S, Uittenbogaart C H
Proc Natl Acad Sci U S A. 1984 Dec;81(24):7807-11. doi: 10.1073/pnas.81.24.7807.
Autocrine growth factor activity was found in supernatants of AKR T-cell lymphoma lines cultured in serum-free medium. This factor was designated leukemia-derived growth factor (LDGF). Active supernatants stimulated the growth of the AKR murine T-cell lymphoma line SL 12, its cloned derivatives, and all other murine T-cell lymphoma lines tested. Growth factor activity in conditioned medium was found to be different from interleukin 2 (IL-2) and several other known growth factors. LDGF was able to stimulate growth of the human leukemia T-cells MOLT4f, and the LDGF from MOLT4f cells stimulated the mouse cells. Because mouse T-cell lymphoma lines produced and respond to this factor, it may support the continued proliferation of these cells and could be responsible for their malignant in vivo properties.
在无血清培养基中培养的AKR T细胞淋巴瘤细胞系的上清液中发现了自分泌生长因子活性。这种因子被命名为白血病衍生生长因子(LDGF)。活性上清液刺激了AKR小鼠T细胞淋巴瘤细胞系SL 12、其克隆衍生物以及所有其他测试的小鼠T细胞淋巴瘤细胞系的生长。发现条件培养基中的生长因子活性不同于白细胞介素2(IL-2)和其他几种已知的生长因子。LDGF能够刺激人白血病T细胞MOLT4f的生长,而来自MOLT4f细胞的LDGF则刺激小鼠细胞。由于小鼠T细胞淋巴瘤细胞系产生并对这种因子有反应,它可能支持这些细胞的持续增殖,并可能导致它们在体内的恶性特性。