Methods: Through affinity enrichment and immunoscreening of phage-displayed fifteen-peptide libraries with a monoclonal antibody named WLA2C4 against WLA-Ag1, the enriched phages was obtained and plated on agar plates.

• 方法：采用肺癌单克隆抗体WLA2C4对噬菌体完全随机十五肽表达文库进行多级亲和筛选，建立与WLA2C4具亲和力的肽库；