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Your Position: Casa > El antígeno de maduración de células B (BCMA),un objetivo para el mieloma múltiple

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).

proteínas BCMA

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.

Datos de validación del producto

FACS

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).

BLI
Loaded Anti-Human BCMA MAb (human IgG1) on Protein A Biosensor, can bind Human BCMA, His Tag (Cat. No. BCA-H522y) with an affinity constant of 35.8 nM as determined in BLI assay (ForteBio Octet Red96e).

SPR
Anti-BCMA MAb (Mouse IgG1, the antibody was co developed by SCT and ACROBiosystems) captured on CM5 chip via anti-mouse antibodies surface can bind Human BCMA, His Tag (Cat. No. BCA-H522y) with an affinity constant of 0.388 nM as determined in a SPR assay (Biacore T200).
ELISA
Immobilized Human BAFF, Fc Tag at 5 μg/mL (100 μL/well) can bind Biotinylated Human BCMA, His,Avitag (Cat. No. BCA-H82E4) with a linear range of 15-125 ng/mL.
Immobilized Human APRIL, Fc Tag at 5 μg/mL (100 μL/well) can bind Biotinylated Human BCMA, His,Avitag (Cat. No. BCA-H82E4) with a linear range of 0.6-20 ng/mL.

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.

Lista de productos BCMA

Molecule Cat. No. Species Structure Purity Features
BCMA
(Biotin-labeled)
BC7-H82F0
BC7-H82F0-STC1

BCMA
(FITC-Labeled)
BCA-HF254
BCA-HF254-STC1

BCMA BCA-H522y
BCA-H522y-STC1

BCMA BC7-H5254
BC7-H5254-STC1

BCMA
(Biotin-labeled)
BCA-M82F0
BCA-M82F0-STC1

BCMA
(Biotin-labeled)
BCA-M5258
BCA-M5258-STC1

BCMA
(Biotin-labeled)
BCA-C82F4
BCA-C82F4-STC1

BCMA BCA-C5253
BCA-C5253-STC1

Otros productos relevantes

Molecule Cat. No. Species Structure Purity Features
BAFF
(Biotin-labeled)
BAF-H82F3
BAF-H82F3-STC1

BAFF
(Biotin-labeled)
BAF-H82Q2
BAF-H82Q2-STC1

BAFF
(FITC-Labeled)
BAF-HF268
BAF-HF268-STC1

BAFF BAF-M5257
BAF-M5257-STC1

BAFFR
(Biotin-labeled)
BAR-M82F0
BAR-M82F0-STC1

BAFFR BAR-M5259
BAR-M5259-STC1

BAFFR BAR-H5257
BAR-H5257-STC1

APRIL
(Biotin-labeled)
APL-H82F5
APL-H82F5-STC1

Other Multiple Myeloma Targets

Molecule Cat. No. Species Structure Purity Features
CD38
(Biotin-labeled)
CD8-H82E7
CD8-H82E7-STC1

CD38 CD8-H5224
CD8-H5224-STC1

SLAMF7
(Biotin-labeled)
SL7-H82E0
SL7-H82E0-STC1
SLAMF7 SL7-H5225
SL7-H5225-STC1
SLAMF7 SL7-H5256
SL7-H5256-STC1

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