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El antígeno de maduración de células B (BCMA),un objetivo para el mieloma múltiple
BCMA se induce selectivamente durante la diferenciación de las células plasmáticas y está casi ausente en las células B ingenuas y de memoria[1,2]. La interacción entre la BCMA y su ligando BAFF y APRIL está implicada en el mantenimiento de las células plasmáticas de larga vida [3,4]. El BCMA es un objetivo ideal para los cánceres de células plasmáticas, porque no se expresa en otros órganos importantes. Actualmente se están desarrollando y probando clínicamente docenas de terapias dirigidas a la BCMA, como las células T receptoras de antígenos quiméricos (CAR-T), los conjugados de anticuerpos y los anticuerpos biespecíficos. A la cabeza está el bb2121 de Bluebird y Celgene. Un ensayo clínico multicéntrico de fase (I) ha demostrado una asombrosa tasa de respuesta del 80% en pacientes con mieloma múltiple. Estos enfoques, si se establecen con éxito, aportarán a los pacientes con mieloma múltiple una opción muy necesaria más allá del Daratumumab (anticuerpo anti-CD38 ) y Elotuzumab (anti-SLAMF7).
Las interacciones entre BAFF / APRIL y sus receptores son selectivas. Tenga en cuenta que BCMA puede interactuar tanto con BAFF como con APRIL[5]. Sin embargo, la afinidad de la interacción APRIL-BCMA es mucho mayor que la de la unión BAFF-BCMA[6].
ACROBiosystems proporciona un panel completo de proteínas BCMA, incluyendo la exclusiva BCMA biotinilada (Cat. No. BC7-H82F0) y la BCMA monomérica (Cat. No. BCA-H522y). También ofrecemos proteínas relacionadas con la BCMA, como las proteínas BAFF y BAFFR.
293 cells were transfected with anti-BCMA-scFv and RFP tag. 2e5 of the cells were stained with B. FITC-labeled human BCMA / TNFRSF17 protein, Fc tag (Cat. No. BCA-HF254, 3 μg/ml) and C. FITC-labeled protein control. A. Non-transfected 293 cells and C. FITC-labeled protein control were used as negative control. RFP was used to evaluate CAR (anti-BCMA-scFv) expression and FITC was used to evaluate the binding activity of FITC-labeled human BCMA / TNFRSF17 protein, Fc tag (Cat. No. BCA-HF254).
Human T cells were transfected with anti-BCMA CAR and cultured for 3 days. Three days post-transfection, 1e6 cells were first incubated with 50ul Biotinylated Human BCMA, Fc,Avitag (Cat. No. BC7-H82F0, 8 μg/ml ), washed and then stained with PE Streptavidin and analyzed by flow cytometry. (Data are kindly provided by PREGENE Biopharma).
We offer a variety of ready-to-use biotinylated proteins using our in-house developed labeling techniques, which confer high bioactivity and minimal batch-to-batch variation. In addition, we also offer FITC-labeled BCMA and BAFF proteins.
Molecule | Cat. No. | Species | Structure | Purity | Features |
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BCMA (Biotin-labeled) |
BC7-H82F0 |
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BCMA (FITC-Labeled) |
BCA-HF254 |
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BCMA | BCA-H522y |
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BCMA | BC7-H5254 |
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BCMA (Biotin-labeled) |
BCA-M82F0 |
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BCMA (Biotin-labeled) |
BCA-M5258 |
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BCMA (Biotin-labeled) |
BCA-C82F4 |
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BCMA | BCA-C5253 |
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Molecule | Cat. No. | Species | Structure | Purity | Features |
---|---|---|---|---|---|
BAFF (Biotin-labeled) |
BAF-H82F3 |
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BAFF (Biotin-labeled) |
BAF-H82Q2 |
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BAFF (FITC-Labeled) |
BAF-HF268 |
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BAFF | BAF-M5257 |
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BAFFR (Biotin-labeled) |
BAR-M82F0 |
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BAFFR | BAR-M5259 |
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BAFFR | BAR-H5257 |
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APRIL (Biotin-labeled) |
APL-H82F5 |
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Molecule | Cat. No. | Species | Structure | Purity | Features |
---|---|---|---|---|---|
CD38 (Biotin-labeled) |
CD8-H82E7 |
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CD38 | CD8-H5224 |
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SLAMF7 (Biotin-labeled) |
SL7-H82E0 |
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SLAMF7 | SL7-H5225 |
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SLAMF7 | SL7-H5256 |
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