还想请问一下,这篇文章是怎么个测RO% bound strategy的。
原文Human IgG4 anti-PD-1 antibodies (JS001) were evaluated for RO bioanalysis. A 100 μl blood sample was aliquoted into two different tubes labeled as RO tube and total receptor tube (TR tube), respectively. Blood sample in TR tube was incubated with 3 μg of JS001, or human IgG4 isotype control antibody (Biovision, CA, USA) for 30 min at 25◦C. After centrifugation, the harvested blood cells were washed twice and resuspended in phosphate-buffered saline containing 1% fetal bovine serum (pH 7.0). The sample was then incubated with FITC-conjugated mouse anti-human CD3ε (BD Biosciences, CA, USA), PerCP/cy 5.5 anti-human CD8a (Biolegend, CA, USA), mouse anti-human IgG4 pFc’-PE (Southern Biotech, AL, USA) and one of the following antibodies: APC mouse antihuman CD95 antibody, APC mouse anti-human CD69 antibody, APC mouse anti-human HLA-DR antibody,
APC mouse anti-human CD45RO antibody or APC mouse anti-human CD45RA antibody- for an activated T-cell
marker for 30 min at 25◦C.
到底RO管与TR管里是分别怎样加药物和检测抗体的呢,没看懂?
RO管加3ug药物,再加检测抗体?
TR管直接加同型抗体,再加检测抗体?这样不能得到RO啊.....
原文公式为: PD − 1 RObound strategy (%) = (MFIRO Tube/MFITR Tube) × 100
|