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- BD OMICS-Guard Sample Preservation Buffer
- BD Rhapsody™ ATAC-Seq Assays
- BD Rhapsody™ TCR/BCR Next Multiomic Assays
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Multicolor flow cytometric analysis of LAG-3 (CD223) expression on unstimulated (Top Plots) and stimulated (Bottom Plots) human peripheral blood lymphocytes. Human peripheral blood mononuclear cells (PBMC) were cultured for 3 days with plate-bound Anti-Human CD3 (Cat. No. 555329; 10 µg/mL for coating) and soluble Anti-Human CD28 (Cat. No. 555725; 1 µg/mL) antibodies, and Human Recombinant IL-2 (Cat. No. 554603; 10 ng/mL). Unstimulated PBMC (from the same donor) and the stimulated PBMC were stained with APC Mouse Anti-Human CD8 (Cat. No. 555369/561421/561952/561953), PE Mouse Anti-Human CD279 (PD-1) (Cat. No. 560795), and BD Horizon™ BV421 Mouse Anti-Human LAG-3 (CD223) (Cat. No. 565720/565721) antibodies. Two-color flow cytometric contour plots showing the correlated expression of LAG-3 (CD223) versus CD8 (Left Plots), or LAG-3 (CD223) versus CD279 (PD-1) (Right Plots) were derived from gated events with the forward and side light-scatter characteristics of viable unstimulated (Top Plots) or stimulated (Bottom Plots) lymphocytes. Flow cytometric analysis was performed using a BD™ LSR II Flow Cytometer System.
BD Horizon™ BV421 Mouse Anti-Human LAG-3 (CD223)
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준비 및 보관
권장 분석 절차
For optimal and reproducible results, BD Horizon Brilliant Stain Buffer should be used anytime two or more BD Horizon Brilliant dyes are used in the same experiment. Fluorescent dye interactions may cause staining artifacts which may affect data interpretation. The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions. More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794).
제품 고시
- This reagent has been pre-diluted for use at the recommended Volume per Test. We typically use 1 × 10^6 cells in a 100-µl experimental sample (a test).
- An isotype control should be used at the same concentration as the antibody of interest.
- Pacific Blue™ is a trademark of Molecular Probes, Inc., Eugene, OR.
- Source of all serum proteins is from USDA inspected abattoirs located in the United States.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
- BD Horizon Brilliant Violet 421 is covered by one or more of the following US patents: 8,158,444; 8,362,193; 8,575,303; 8,354,239.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
관련 제품
The T47-530 specifically recognizes the Lymphocyte Activation Gene 3 (LAG-3) protein which is also known as, Protein FDC, or CD223. LAG-3 is a ~70 kDa type I transmembrane glycoprotein that belongs to the Ig superfamily and exhibits homology to CD4. LAG-3 is expressed on NK cells, regulatory T cells, and activated conventional T cells with higher expression found on CD8+ T cells compared with CD4+ T cells. LAG-3 is an activation induced cell surface molecule that like CD4, binds MHC class II molecules, but with much higher affinity. This may enable LAG-3 to act as a negative competitor of CD4 for MHC class II ligand binding. LAG-3 may associate with the TCR-CD3 complex to downregulate TCR signal transduction and T cell clonal expansion. In contrast, LAG-3-induced signaling may promote dendritic cell activation.
The antibody was conjugated to BD Horizon BV421 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max at 421-nm, BD Horizon BV421 can be excited by the violet laser and detected in the standard Pacific Blue™ filter set (eg, 450/50-nm filter). BD Horizon BV421 conjugates are very bright, often exhibiting a 10 fold improvement in brightness compared to Pacific Blue conjugates.
개발 참고 자료 (5)
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Casati C, Camisaschi C, Novellino L, et al. Human lymphocyte activation gene-3 molecules expressed by activated T cells deliver costimulation signal for dendritic cell activation. J Immunol. 2008; 180(6):3782-3788. (Biology). 참조 보기
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Hannier S, Tournier M, Bismuth G, Triebel F. CD3/TCR complex-associated lymphocyte activation gene-3 molecules inhibit CD3/TCR signaling. J Immunol. 1998; 161(8):4058-4065. (Biology). 참조 보기
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Huang CT, Workman CJ, Flies D, et al. Role of LAG-3 in regulatory T cells. Immunity. 2004; 21(4):503-513. (Biology). 참조 보기
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Triebel F, Hacene K, Pichon MF. A soluble lymphocyte activation gene-3 (sLAG-3) protein as a prognostic factor in human breast cancer expressing estrogen or progesterone receptors. Cancer Lett. 2006; 235(1):147-153. (Biology). 참조 보기
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Triebel F, Jitsukawa S, Baixeras E, et al. LAG-3, a novel lymphocyte activation gene closely related to CD4. J Exp Med. 1990; 171(5):1393-1405. (Biology). 참조 보기
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