抗Bcl-2抗体 | Anti-Bcl-2 Antibody

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	Genetic Strategies Validation. Western Blot: Bcl-2 Antibody [NB100-56098] - Analysis of Bcl-2 in whole cell lysate from Daoy cells. Cells were transfected with scrambled control siRNA (lane 1) or Bcl-2 siRNA (lane2). Image from verified customer review.
	Western Blot: Bcl-2 Antibody [NB100-56098] - WB analysis of whole cell lysate (WCL) of Jurkat cells using anti-Bcl-2 antibody (NB100-56098) at 1:1000 dilution. HRP conjugated goat anti-rabbit IgG (H+L) cross adsorbed secondary antibody was used with ECL substrate for the detection of Bcl2 antibody bound to the blotted protein. This Bcl2 antibody detected a specific band at expected molecular weight marker position of Bcl2 protein (26kDa).
	Immunohistochemistry-Paraffin: Bcl-2 Antibody [NB100-56098] - IHC analysis of a formalin-fixed paraffin-embedded (FFPE) human breast carcinoma tissue section using 1:1000 dilution of Bcl-2 antibody (NB100-56098) on a Bond Rx autostainer (Leica Biosystems). The assay involved 20 minutes of heat induced antigen retrieval (HIER) with 10mM sodium citrate buffer (pH 6.0) and endogenous peroxidase quenching using peroxide block. The sections were incubated with primary antibody for 30 minutes. Bond Polymer Refine Detection (Leica Biosystems) and DAB were used for signal detection which followed counterstaining with hematoxylin. Whole slide scanning and capturing of representative images (20X) were performed using Aperio AT2 (Leica Biosystems). This antibody generated a diffused cytoplasmic staining of BCL2 in the cancer cells with relatively intense signal in their nuclear membranes. Staining was performed by Histowiz.
	Western Blot: Bcl-2 Antibody [NB100-56098] - Analysis of Bcl-2 using this antibody at 1:2000, 20 ug/protein was loaded per lane. Lane 1. Human Jurkat T cells. Lane 2. Human RS11 lymphoma cells. Lanes 3-6. Human breast cancer cases. Patient sample in lane 5 lacked detectible Bcl-2 expression.
	Western Blot: Bcl-2 Antibody [NB100-56098] - Analysis of Bcl-2 in 293T cell lysate (30ug) using anti-Bcl-2 antibody. Image from verified customer review.
	Immunohistochemistry-Paraffin: Bcl-2 Antibody [NB100-56098] - IHC analysis of a formalin-fixed paraffin-embedded (FFPE) human breast carcinoma tissue section using 1:1000 dilution of Bcl-2 antibody (NB100-56098) on a Bond Rx autostainer (Leica Biosystems). The assay involved 20 minutes of heat induced antigen retrieval (HIER) with 10mM sodium citrate buffer (pH 6.0) and endogenous peroxidase quenching using peroxide block. The sections were incubated with primary antibody for 30 minutes. Bond Polymer Refine Detection (Leica Biosystems) and DAB were used for signal detection which followed counterstaining with hematoxylin. Whole slide scanning and capturing of representative images (20X) were performed using Aperio AT2 (Leica Biosystems). This antibody generated a diffused cytoplasmic staining of BCL2 in the cancer cells with relatively intense signal in their nuclear membranes. The endothelial cells and the stromal cells showed a weak signal while the RBCs were negative for BCL2.

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Background

The Bcl-2 family of apoptosis-related genes plays central roles in regulating apoptotic pathways (reviewed in Thomadaki and Scorilas, 2006). Regulation of cell death through apoptosis is critical for the maintenance of homeostasis, defense against infectious agents, and normal development. Bcl-2 family proteins regulate apoptosis primarily through the regulation of mitochondrial outer membrane permeability. In mammals, the family consists of both prosurvival (antiapoptotic) and proapoptotic (prodeath) members. Cellular homeostasis is thought to be dependent on a balance between the actions of prosurvival and proapoptotic proteins. Bcl-2 family proteins can be divided into 3 main subfamilies on the basis of their function and the content of their Bcl-2 homology (BH) domains, for example: 1) Prosurvival: Bcl-2, Bcl-XL, Bcl-W, A1, and Mcl-1 2) Proapoptotic (multidomain): Bax, Bak, and Bok. 3) BH3-only (proapoptotic): Bad, Bcl-XS, Bid, Bik, Bim, Blk, Bmf, Bnip, Noxa, and Puma. Prosurvival members inhibit cells from undergoing apoptosis, whereas proapoptotic and BH3-only subfamily members promote apoptosis. There are 4 BH domains (1-4) conserved among Bcl-2 family proteins. The BH domains are important for function as well as for heterodimerization between family members. Typical prosurvival family members have all four BH domains (1-4), whereas proapoptotic (multidomain) members have BH1, 2 and 3 domains and BH3-only members have only the BH3 domain. Overall, the relative ratio of prosurvival and proapoptotic proteins determines the suseptibility of a cell to various apoptotic stimuli. Many Bcl-2 family proteins are differentially expressed in various malignancies and some are useful prognostic biomarkers. Prosurvival proteins are often elevated in diverse cancers and have the potential to confer resistance to both endogenous cell death stimuli and cancer treatments. Alterations in the ratio or levels of Bcl-2 family proteins have been also associated with nonmalignant diseases including neurodegenerative diseases, autoimmune diseases, AIDs, Down's syndrome, cardiovascular diseases, diabetes, glomerulonephritis, and muscular dystrophy. Recognizes both Bcl-2 alpha and beta isoforms. Human Bcl-2 alpha is a 239 amino acid (aa) protein and human Bcl-2 beta is a 205 aa protein.

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