We developed a serum-free culture system that promoted the growth of B cell colonies in peripheral blood, bone marrow, lymph nodes and cerebrospinal fluid (CSF) from 7 out of 8 patients with non-Hodgkin's lymphoma...We developed a serum-free culture system that promoted the growth of B cell colonies in peripheral blood, bone marrow, lymph nodes and cerebrospinal fluid (CSF) from 7 out of 8 patients with non-Hodgkin's lymphomas of B cell type. The culture cells were pretreated with or without galactose oxi-dase (GO) prior to plating. Colony growth was best supported with BCGF. A moderate increment was observed with rIL-3, as well as rIL-1β and even to a lesser degree, by rlL-2, while B cell stimulating factor-2 (rBCSF-2) and rlL-1β did not show significant activity. rGM-CSF and rG-CSF had little effect, while rM-CSF enhanced the formation of lymphoma colonies. The cells from different patients had different requirements for Staphylococcus aureus protein A and GO pretreatment. It reflected the differences in activation and differentiation status and surface properties of lymphoma cells from different patients. The cells from CSF of one patient were successfully maintained in serum-free culture medium supplemented with 10% BCGF or 5% PHA-LCM for more than 4 months. The long-term culture cells were EBV negative, phenotypically consistent with B cells and gene rearrangements for JH, Kappa and myc. This serum-free culture system allowed extensive analysis of the growth requirements for clonogenic precursors.展开更多
【据《Nature》2019 年10 月报道】题:诱导和利用肿瘤细胞弱点治疗肝癌(作者Wang C 等)由于缺乏针对关键靶点的药物,肝癌仍然难以治疗。广谱激酶抑制剂(如索拉非尼)对肝癌患者作用有限。诱导衰老可能代表了一种治疗癌症的策略,尤其是与...【据《Nature》2019 年10 月报道】题:诱导和利用肿瘤细胞弱点治疗肝癌(作者Wang C 等)由于缺乏针对关键靶点的药物,肝癌仍然难以治疗。广谱激酶抑制剂(如索拉非尼)对肝癌患者作用有限。诱导衰老可能代表了一种治疗癌症的策略,尤其是与另外一种可以选择性消除衰老癌细胞(衰老作用)药物联合使用。展开更多
虽然超重和肥胖的全球发病率逐日上升,但在不同地区、国家和性别中的发病趋势仍存在差异。据世界卫生组织报道,全球多个地区由体质量指数（body mass index,BMI）≥25kg/m2定义的超重/肥胖发生率几乎接近一半人口,有的甚至超过了一半,...虽然超重和肥胖的全球发病率逐日上升,但在不同地区、国家和性别中的发病趋势仍存在差异。据世界卫生组织报道,全球多个地区由体质量指数（body mass index,BMI）≥25kg/m2定义的超重/肥胖发生率几乎接近一半人口,有的甚至超过了一半,如美洲（61.1%）,欧洲（54.8%）和东地中海地区（46.0%）,然而,在非洲（26.9%）,东南亚（13.7%）和西太平洋地区（25．4％），超重／肥胖发生率较低。展开更多
文摘We developed a serum-free culture system that promoted the growth of B cell colonies in peripheral blood, bone marrow, lymph nodes and cerebrospinal fluid (CSF) from 7 out of 8 patients with non-Hodgkin's lymphomas of B cell type. The culture cells were pretreated with or without galactose oxi-dase (GO) prior to plating. Colony growth was best supported with BCGF. A moderate increment was observed with rIL-3, as well as rIL-1β and even to a lesser degree, by rlL-2, while B cell stimulating factor-2 (rBCSF-2) and rlL-1β did not show significant activity. rGM-CSF and rG-CSF had little effect, while rM-CSF enhanced the formation of lymphoma colonies. The cells from different patients had different requirements for Staphylococcus aureus protein A and GO pretreatment. It reflected the differences in activation and differentiation status and surface properties of lymphoma cells from different patients. The cells from CSF of one patient were successfully maintained in serum-free culture medium supplemented with 10% BCGF or 5% PHA-LCM for more than 4 months. The long-term culture cells were EBV negative, phenotypically consistent with B cells and gene rearrangements for JH, Kappa and myc. This serum-free culture system allowed extensive analysis of the growth requirements for clonogenic precursors.
文摘【据《Nature》2019 年10 月报道】题:诱导和利用肿瘤细胞弱点治疗肝癌(作者Wang C 等)由于缺乏针对关键靶点的药物,肝癌仍然难以治疗。广谱激酶抑制剂(如索拉非尼)对肝癌患者作用有限。诱导衰老可能代表了一种治疗癌症的策略,尤其是与另外一种可以选择性消除衰老癌细胞(衰老作用)药物联合使用。
文摘虽然超重和肥胖的全球发病率逐日上升,但在不同地区、国家和性别中的发病趋势仍存在差异。据世界卫生组织报道,全球多个地区由体质量指数（body mass index,BMI）≥25kg/m2定义的超重/肥胖发生率几乎接近一半人口,有的甚至超过了一半,如美洲（61.1%）,欧洲（54.8%）和东地中海地区（46.0%）,然而,在非洲（26.9%）,东南亚（13.7%）和西太平洋地区（25．4％），超重／肥胖发生率较低。
