摘要
AIM: To study the inhibitory effects of a Shuangling Fuzheng anticancer preparation (SFAP) on the human gastric cancer cell line SGC-7901 in vitro as well as its immune-modulated effects in a cyclophosphamide-treated murine model. METHODS: MTT experiments and immunocytochemistry ABC experiments were performed for detecting the proliferation of SGC-7901 cells in vitro and protein expression of c-myc. The staphylococcal protein A (SPA) rosette test was utilized for measuring the ratio of T-lymphocyte subsets from peripheral blood in a cyclophosphamide-treated murine model. Enzyme- linked immunosorbant assay (ELISA) was performed for measuring the levels of serum sIL-2R in treated mice, while immunoturbidimetry was used for measuring the levels of immunoglobulins (Ig). RESULTS: SFAP (40-640 mg/L, 48 h) inhibited the proliferation of SGC-7901 cells, and a positive correlation was noted between inhibitory effects and dosage. At a dosage of 160-320 mg/L in cultured cells, the expression of c-myc was decreased. SFAP (50-200 mg/kg) increased the percentage of CD3+ and CD4+ T-lymphocytes, the ratio of CD4/CD8, and the contents of Ig such as IgM, IgG or IgA, but decreased the levels of serum sIL-2R in peripheral blood from cyclophosphamide-treated mice. CONCLUSION: SFAP can inhibit the proliferation of SGC-7901 cells via the c-myc gene. In addition, SFAP can modulat the cellular and humoral immunity in cyclophosphamide-induced immunosuppressed mice.
AIM： To study the inhibitory effects of a Shuangling Fuzheng anticancer preparation （SFAP） on the human gastric cancer cell line SGC-7901 in vitro as well as its immune-modulated effects in a cyclophosphamide-treated murine model.METHODS： MTT experiments and immunocytochemistry ABC experiments were performed for detecting the proliferation of SGC-7901 cells in vitro and protein expression of c-myc. The staphylococcal protein A （SPA） rosette test was utilized for measuring the ratio of T-lymphocyte subsets from peripheral blood in a cyclophosphamide-treated murine model. Enzymelinked immunosorbant assay （ELISA） was performed for measuring the levels Of serum sIL-2R in treated mice, while immunoturbidimetry was used for measuring the levels of immunoglobulins （Ig）.RESULTS： SFAP （40-640 mg/L, 48 h） inhibited the proliferation of SGC-7901 cells, and a positive correlation was noted between inhibitory effects and dosage. At a dosage of 160-320 mg/L in cultured cells, the expression of c-myc was decreased. SFAP （50-200 mg/kg） increased the percentage of CD3^＋ and CD4^＋ T-lymphocytes, the ratio of CD4/CD8, and the contents of Ig such as IgM, IgG or IgA, but decreased the levels of serum sIL-2R in peripheral blood from cyclophosphamide-treated mice.CONCLUSION： SFAP can inhibit the proliferation of SGC-7901 cells via the c-myc gene. In addition, SFAP can modulat the cellular and humoral immunity in cyclophosphamide-induced immunosuppressed mice.
基金
Supported by The Society Development Research Programs of Foundation Science and Technology Department of Jiangsu Province, No. BS99382
the Science Basic Research Programs of University of Jiangsu Province, No. 06KJB360131
