Evaluation of PDL1 positive cancer cell-specific binding activity of recombinant anti-PDL1 scFv

IF 2.5 3区生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Biotechnology Progress Pub Date : 2024-02-20 DOI:10.1002/btpr.3439

Sun-Hee Kim, Hae-Min Park, Hee-Jin Jeong

引用次数: 0

Abstract

Programmed cell death-ligand 1 (PDL1) is a transmembrane protein that is characterized as an immune regulatory molecule. We recently developed a recombinant single-chain fragment of variable domain (scFv) against PDL1, which showed high binding efficiency to purified recombinant PDL1 protein. However, at that time, proof-of-concept data for the effect of scFv using PDL1-expressing cells was lacking. In this study, we conducted two kinds of cell-based immunoassays, western blotting and enzyme-linked immunosorbent assay, using anti-PDL1 scFv. The results indicate that scFv can selectively and sensitively detect PDL1 from PDL1 positive human cancer cell lines. Our findings suggest that scFv could be used as a potential PDL1 inhibitor agent and probe for cell-based immunoassays to detect PDL1.

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评估重组抗 PDL1 scFv 的 PDL1 阳性癌细胞特异性结合活性。

程序性细胞死亡配体 1（PDL1）是一种跨膜蛋白，被认为是一种免疫调节分子。我们最近开发了一种针对 PDL1 的重组可变结构域单链片段（scFv），它与纯化的重组 PDL1 蛋白的结合效率很高。然而，当时还缺乏使用 PDL1 表达细胞对 scFv 的效果进行概念验证的数据。在本研究中，我们使用抗 PDL1 scFv 进行了两种基于细胞的免疫测定，即 Western 印迹和酶联免疫吸附测定。结果表明，scFv 可以选择性地、灵敏地检测 PDL1 阳性人类癌症细胞系中的 PDL1。我们的研究结果表明，scFv 可作为一种潜在的 PDL1 抑制剂和细胞免疫测定探针来检测 PDL1。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Biotechnology Progress 工程技术-生物工程与应用微生物

CiteScore

6.50

自引率

3.40%

发文量

审稿时长

4 months

期刊介绍： Biotechnology Progress , an official, bimonthly publication of the American Institute of Chemical Engineers and its technological community, the Society for Biological Engineering, features peer-reviewed research articles, reviews, and descriptions of emerging techniques for the development and design of new processes, products, and devices for the biotechnology, biopharmaceutical and bioprocess industries. Widespread interest includes application of biological and engineering principles in fields such as applied cellular physiology and metabolic engineering, biocatalysis and bioreactor design, bioseparations and downstream processing, cell culture and tissue engineering, biosensors and process control, bioinformatics and systems biology, biomaterials and artificial organs, stem cell biology and genetics, and plant biology and food science. Manuscripts concerning the design of related processes, products, or devices are also encouraged. Four types of manuscripts are printed in the Journal: Research Papers, Topical or Review Papers, Letters to the Editor, and R & D Notes.

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