阅读说明：本技术 抗pd-l1抗体及其应用 (anti-PD-L1 antibody and application thereof ) 是由 房健民 姜静 李慎军 赵国锐 于 2020-08-25 设计创作，主要内容包括：本发明提供了一种PD-L1免疫抑制剂,具体提供了一种能够靶向PD-L1的单克隆抗体以及编码这些抗体的核苷酸、多核苷酸组合、表达载体以及表达载体组合。本发明还提供了包含上述抗PD-L1抗体的偶联物或者药物组合物。本发明还提供了上述抗PD-L1抗体核苷酸、多核苷酸组合、表达载体、表达载体组合、偶联物或者药物组合物在治疗或预防癌症的药物中的用途。(The invention provides a PD-L1 immunosuppressant, and particularly provides a monoclonal antibody capable of targeting PD-L1, and nucleotides, polynucleotide combinations, expression vectors and expression vector combinations for encoding the antibodies. The invention also provides a conjugate or a pharmaceutical composition comprising the anti-PD-L1 antibody. The invention also provides application of the anti-PD-L1 antibody nucleotide, the polynucleotide combination, the expression vector combination, the conjugate or the pharmaceutical composition in preparing a medicament for treating or preventing cancer.)