Journal: Genes & Diseases
Article Title: Identification of new aptamer BC-3 targeting RPS7 from rapid screening for bladder carcinoma
doi: 10.1016/j.gendis.2022.07.002
Figure Lengend Snippet: BC-3 target proteins analyzed by mass spectrometry. ( A ) The binding of biotin- and FITC-labeled BC-3 to 5637 cells was measured by flow cytometry, with biotin- and FITC-labeled Library as a control. ( B ) SDS-PAGE with silver staining was used to identify the aptamer target. Lane library, protein captured with biotin-labeled library treated sample; Lane BC-3, protein captured with biotin-labeled BC-3 treated sample. ( C ) Western blot analysis of the concentrations of RPS7 and β-actin in the preparations captured via Library and BC-3. ( D ) After incubating the ER fluorescence probe ER-tracker (red) for 0.5 h and FITC-labeled BC-3 or Library (green) for 1 h, 5637 cells displayed the colocalization (yellow) of ER-tracker and FITC-labeled BC-3. ( E ) Enlarged view of intracellular fluorescence signals in colocalization. ( F ) Fluorescence intensity profile of yellow arrow regions in 5637 cells (scale bar = 40 μm).
Article Snippet: PVDF membranes were then separately incubated with anti-RPS7 rabbit polyclonal antibody (D127523, Sangon Biotechnology Co., Ltd.) and anti-β-Actin antibody (MA5-11869, Thermo Fisher) at 4 °C overnight.
Techniques: Mass Spectrometry, Binding Assay, Labeling, Flow Cytometry, Control, SDS Page, Silver Staining, Western Blot, Fluorescence