摘要
利用B细胞杂交瘤技术,用rhG-CSF免疫BALB/c小鼠,将其脾细胞与SP2/0骨髓瘤细胞融合,成功地建立了3株能持续分泌特异抗rhG-CSF McAb的杂交瘤细胞。取其中2D_4-B_4杂交瘤细胞进行染色体数目测定,并将2D_4-B_4瘤细胞注入小鼠腹腔,获得抗体阳性腹水,测定提纯抗体IgG亚型、特异性、稳定性和亲和力,证实该McAb可以和hG-CSF及小鼠G-CSF特异结合。为进一步研究hG-CSF和人工合成G-CSF打下良好的基础。
Three hybridomas producing monoclonal antibodies (McAb) against recom-binant human granulocyte colony-stimulating factor (rhG-CSF) have been established by fusing mouse myeloma SP 2/0 cells with spleen cells from a BALB/c mouse immunized with rhG-CSF.Ascites was produced from BALB/c mice by injecting substrain 2D4-B4 hybridoma cells intraperitoneally. The antibody was purified either by the caprylic acid-ammonium sulfate method or by euglobulin precipitation. The caprylic acid-ammonium sulfate method was superior to euglobulin precipitation in terms of purification and recovery of IgG. The 2D4-B4 McAb was determined to belong to the IgG3 subclass with a molecular weight of about 172 400 It was proved by Western Blot to react specifically with rhG-CSF. The stability and affinit affinity of the McAb were analyzed as well.The potential clinical and experimental applications of this McAb are discussed.
出处
《中国医学科学院学报》
CAS
CSCD
北大核心
1991年第1期7-12,共6页
Acta Academiae Medicinae Sinicae
