12 months from date of receipt / reconstitution, 2 to 8 °C as supplied
应用 | 稀释度 |
---|---|
ICC | 1:500 |
FCM | 1:130 |
The CD19 antigen plays an important role in clinical oncology. In normal cells, it is the most ubiquitously expressed protein in the B lymphocyte lineage. CD19 expression is induced at the point of B lineage commitment during the differentiation of the hematopoietic stem cell, and its expression continues through preB and mature B cell differentiation until it is finally down-regulated during terminal differentiation into plasma cells. CD19 expression is maintained in B-lineage cells that have undergone neoplastic transformation, and therefore CD19 is useful in diagnosis of leukemias and lymphomas using monoclonal antibodies (mAbs) and flow cytometry [PMID: 8528044].
Flow cytometric analysis of Jurkat (Human T cell leukemia T lymphocyte, left) / Raji (Human Burkitt's lymphoma B lymphocyte, Right) cells labelling CD19 (Cy5 Conjugate) antibody at 1/130 dilution (1 μg) / (Red) compared with a Rabbit monoclonal IgG (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue).
Negative control: Jurkat
ICC shows positive staining in Raji cells. Anti-CD19 (Cy5 Conjugate) antibody was used at 1/500 dilution (magenta) and incubated overnight at 4°C. The cells were fixed with 100% ice-cold methanol and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).
Negative control: ICC shows negative staining in Jurkat cells. Anti-CD19 (Cy5 Conjugate) antibody was used at 1/500 dilution and incubated overnight at 4°C. The cells were fixed with 100% ice-cold methanol and permeabilized with 0.1% PBS-Triton X-100. Nuclei were counterstained with DAPI (Blue).