title: [Preparation of polyclonal antibody against sAPRIL and analysis of function in suppressing sAPRIL-mediated lymphocyte proliferation].
abstract: This study was aimed to prepare the polyclonal antibody against the soluble proliferation-inducing ligand (sAPRIL) antigen and to investigate its effects in suppressing sAPRIL mediated lymphocyte proliferation. Mutated recombinant sAPRIL protein, which lacks biological activity but maintains immunogenicity, was used as antigen to immunize humanized SCID mice. Sera were obtained at 6 weeks after immunization. Indirect ELISA and Western blot were used to detect the antibody titer and specificity. The inhibition of polyclonal antibodies on Raji and Jurkat cell proliferation stimulated by sAPRIL was assessed by the MTT assay. The results showed that the mutant of sAPRIL could induce the production of polyclonal antibodies against human sAPRIL. Western blot and indirect ELISA analyses indicated that the anti-serum had higher specificity with a titer of 1:640. Functional analysis revealed that these polyclonal antibodies significantly inhibited the proliferation of Raji and Jurkat cell stimulated by sAPRIL (p < 0.05). It is concluded the polyclonal antibody against human sAPRIL is successfully prepared, which can inhibit the proliferation of Raji and Jurkat cells stimulated by sAPRIL in vitro.
authors.affiliation: Department of Plastic Surgery, Southern Medical University, Guangzhou, Guangdong Province, China.
authors.forename: Ben-Jun
authors.initials: BJ
authors.lastname: Du
authors.forename: Quan-Sheng
authors.initials: QS
authors.lastname: Gao
authors.forename: Zhi
authors.initials: Z
authors.lastname: Lan
authors.forename: Jun-Wen
authors.initials: JW
authors.lastname: Fan
authors.forename: Lu-Jing
authors.initials: LJ
authors.lastname: Ding
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Qi
authors.forename: Wei
authors.initials: W
authors.lastname: Kong
mesh_terms: D000818:Animals; D000906:Antibodies / Q000235:genetics* / Q000276:immunology / Q000494:pharmacology*; D000918:Antibody Specificity / Q000276:immunology; D049109:Cell Proliferation / Q000187:drug effects; D003001:Cloning, Molecular; D006801:Humans; D007106:Immune Sera / Q000032:analysis / Q000276:immunology; D019169:Jurkat Cells; D051379:Mice; D053300:Tumor Necrosis Factor Ligand Superfamily Member 13 / Q000235:genetics* / Q000276:immunology
chemical_list: D000906:Antibodies; D007106:Immune Sera; C114631:TNFSF13 protein, human; D053300:Tumor Necrosis Factor Ligand Superfamily Member 13