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Tislelizumab 是一种能特异性结合细胞程序性死亡受体 1 (PD-1) 的单克隆抗体，阻断其与程序性死亡配体 1 (PD-L1) 和程序性死亡配体 2 (PD-L2) 的相互作用Tislelizumab 可使 T 淋巴细胞等免疫细胞重新激活，增强抗肿瘤的活性。Tislelizumab 被用于经典型霍奇金淋巴瘤、尿路上皮癌、非小细胞肺癌和肝细胞癌等多种肿瘤的研究。 本试剂盒采用间接法酶联免疫吸附试验（ELISA）。往预先包被有人PD-1抗原的微孔中，依次加入样本、标准品、HRP标记的二抗，中间经过温育和洗涤，用底物TMB显色，TMB在过氧化物酶(HRP)的催化下转化成蓝色，并在酸的作用下转化成最终的黄色。颜色的深浅和样本中的替雷利珠单抗(Tislelizumab)呈正相关。用酶标仪在450nm波长下测定吸光度（OD值），计算样本浓度。
This kit employs the indirect enzyme-linked immunosorbent assay (ELISA) principle. Microplate wells are pre-coated with Human PD-1 antigen. The sample or standard is first added to the wells, followed by an HRP (horseradish peroxidase)-labeled secondary antibody. The procedure involves incubation and wash steps between each addition. TMB substrate is then added for color development. Under the catalysis of the peroxidase (HRP), TMB is converted into a blue product, which subsequently turns into a final stable yellow color upon the addition of an acid stop solution. The intensity of the yellow color is directly proportional to the concentration of Tislelizumab in the sample. The optical density (OD) is measured at a wavelength of 450 nm using a microplate reader, and the concentration of the target analyte in the sample is calculated based on the standard curve.
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