Journal: Pathology and Oncology Research
Article Title: A novel automated IHC staining system for quality control application in ALK immunohistochemistry testing
doi: 10.3389/pore.2025.1611964
Figure Lengend Snippet: IHC staining results of lung adenocarcinoma samples, ALK positive and negative cell controls by applying different antibody concentrations. (A1–A4) Lung adenocarcinoma samples stained with BP6165 at different concentrations (original magnification: ×20). (A1) The highest concentration with an antibody dilution rate of 1:25 shows nonspecific staining on lymphocytes; (A2) antibody dilution rate of 1:200 shows an optimal staining pattern; (A3) antibody dilution rate of 1:1,600 shows weaker staining than the optimal staining; (A4) dilution rate of 1:6400 shows even weaker staining. (B1–B4) ALK positive controls in liquid form stained with BP6165 at different concentrations (original magnification: ×20). (B1, B2) Both antibody dilution rates of 1:25 and 1:200 show a standard staining pattern; (B3) antibody dilution rate of 1:1,600 shows a lower positive rate, away from the standard staining pattern; (B4) antibody dilution rate of 1:6400 shows even weaker staining. (C1–C4) ALK negative controls in liquid form stained with BP6165 at different concentrations (original magnification: ×20). (C1) antibody dilution rate of 1:25 shows “background staining;” (C2–C4) dilution rates of 1:200, 1:1600, and 1:6400 show standard negative results.
Article Snippet: The rabbit monoclonal anti-ALK antibody BP6165 (catalog number: I1153, Biolynx) assay was performed using the LYNX480 PLUS System with conventional 3,3′-diaminobenzidine (DAB) staining (no amplification).
Techniques: Immunohistochemistry, Staining, Concentration Assay