Sino Biological Inc. have advanced antibody development platform, including Immunohistochemistry / IHC, Flow Cytometry / FACS, Immunofluorescence / IF, Immunofluorescence / IF/ ICC, Immunoprecipitation / IP, Western Blot / WB and ELISA. Sino Biological Inc. has developed nearly 1700 Immunofluorescence / IF / ICC antibodies, this provides an effective tool for scientists. These antibodies include different research areas, including cancer, stem cells, diagnostic and Biomarkers etc.. The antibodies were extensive validation by multiple cell types, including cancer cells, such as Hela, MCF7 and HepG2 etc., and stem cells, such as HESC (human embryonic stem cell) and MSC (mesenchymal stem cells).
Immunofluorescence / IF / ICC is a laboratory technique that uses antibodies to detect specific peptides or protein antigens in the cell via specific epitopes. Immunofluorescence / IF / ICC allows researchers to evaluate whether or not cells express the target antigen. Moreover, Immunofluorescence / IF / ICC allow researchers to know sub-cellular location of target antigen.
SKBR3 cells are human breast cancer cells which were developed in 1970 by the Memorial Sloan–Kettering Cancer Center. SKBR3 cells were isolated from a 43-year-old female who had adenocarcinoma of breast. The cell line was validated that it over-expresses the HER2 protein. SKBR3 cell line is often used in Immunofluorescence / IF / ICC test.
Immunofluorescence staining of Human ErbB2 in SKBR3 cells. Cells were fixed with 4% PFA, blocked with 10% serum, and incubated with Rabbit anti-Human ErbB2 monoclonal antibody (10 µg/ml) at 4℃ overnight. Then cells were stained with the Alexa Fluor® 488-conjugated Goat Anti-rabbit IgG secondary antibody (green) and counterstained with DAPI (blue). Positive staining was localized to plasma membrane.