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产品介绍 The Interferon Regulatory Factor (IRF) reporter (Luc)-THP-1 cell line is designed to study the activation and signaling of Cytosolic DNA Sensors (CDS) in human monocytic cell line THP-1. It contains a firefly luciferase gene driven by multimerized ISRE (Interferon Stimulated Response Element) located upstream of the minimal TATA promoter. The cGAS-STING pathway acts to detect cytosolic DNA and induce an immune response. Briefly, upon binding DNA, the protein cGAS (cyclic GMP-AMP Synthase) triggers reaction of GTP and ATP to form cGAMP. cGAMP binds to STING (Stimulator of Interferon Genes) which triggers phosphorylation of IRF3 via TBK1. IRF3 can then bind to interferon-stimulated responsive elements (ISRE) in the nucleus and leads to IFN-α/β production. The IRF reporter (Luc)-THP-1 cell line is highly responsive to STING and CDS ligands.
询价背景介绍
The development of CAR-T cells is a complex process that requires multiple steps in the workflow including I) screening and sequencing of mAbs that are specific to the cancer antigens; II) engineering and validation of scFv and scFv-CAR of different varieties for their specificities and activities; III) production of high titer lentivirus for CAR constructs; IV) isolation, activation and expansion of primary T cells from healthy donors or patients that exhibit a specific cellular phenotype; V) transduction of activated T cells with CAR-encoding lentivirus; VI) validation of engineered CAR-T cells through FACS and functional analysis.
BPS Bioscience has developed a series of CAR-T products, including lentiviruses, reporter cell lines and fully validated functional CAR-T cells for a variety of targets such as CD19 and BCMA. In this product, anti-CD19 CAR negative control and NFAT-luciferase reporter are co-transfected into a Jurkat cell line, where the anti-CD19 scFv binds to CD19, however, it does not induce the activation of CAR and luciferase reporter through NFAT as the intracellular activation motifs are missing. Anti-CD19 scFv linked to the CD28 transmembrane region was cloned into a lentivector, and packaged using a safe, replication incompetent, and VSV-G pseudotyped lentiviral packaging system, in which the gene of anti-CD19 CAR negative control is driven by an EF-1α promotor. Anti-CD19 CAR negative control Jurkat/NFAT reporter cell line was generated by the transduction of anti-CD19 CAR negative control lentivirus into an NFAT-luciferase reporter Jurkat cell line. In these cells, the luciferase reporter should not be activated upon co-culture with CD19/CHO target cells (BPS Bioscience #79561).
Anti-CD19 CAR/NFAT-luciferase reporter Jurkat cell line (BPS Bioscience, #79853) is a great system for primary screening of anti-CD19 CAR and predicting its mechanism of action before testing on patient-derived primary T cells. The same anti-CD19 CAR lentivirus (BPS Bioscience, #79851) was also used to transduce primary T cells to make primary anti-CD19 CAR-T cells, which showed IFN-γ production and cytotoxic killing of CD19+ tumor cells in co-culture experiments, indicating that there is a good correlation between the reporter activity in CAR reporter Jurkat cell line and functional activation of primary CAR-T cells when co-cultured with target cells.
产品介绍
Anti-CD19 CAR negative control/NFAT-luciferase reporter Jurkat cell line is a double stable cell line expressing anti-CD19 CAR negative control and NFAT-luciferase reporter. The anti-CD19 CAR negative control consists of anti-CD19 scFv linked to the CD28 transmembrane motif without any intracellular signaling domains. The reporter cell line has been validated for anti- CD19 expression by FACS, while the stimulation by target cells including CD19/CHO recombinant cell line has not activated the luciferase reporter gene in this cell line. The cell line can be used for the negative control of anti-CD19 CAR/Jurkat-NFAT cell line (BPS Bioscience, #79853).
背景介绍
The development of CAR T-cells is a complex process that requires multiple components in the workflow including I) screening and sequencing of mAbs that are specific to the cancer antigens; II) engineering and validation of scFv and scFv-CAR of different varieties for their specificities and activities; III) production of high titer lentivirus for CAR constructs; IV) isolation, activation and expansion of primary T cells from healthy donors or patients that exhibit a specific cellular phenotype; V) transduction of activated T cells with CAR-encoding lentivirus; V) validation of engineered CAR-T cells through FACS and functional analysis.
BPS Bioscience has developed a series of CAR-T products, including lentiviruses, reporter cell lines and fully validated functional CAR T-cells for a variety of targets such as CD19 and BCMA. In this product, anti-CD19 CAR and NFAT-luciferase reporter are co-transfected into a Jurkat cell line, where binding of CD19 to anti-CD19 scFv leads to the activation of CAR and luciferase reporter through NFAT. Anti-CD19 scFv linked to 3rd generation CAR (CD28 transmembrane and costimulatory domains, 4-1BB, and CD3ζ components) was cloned into a lentivector, and packaged using a safe, replication incompetent, VSV-G pseudotyped lentiviral packaging system, in which the gene of anti-CD19 CAR is driven by an EF-1α promotor. The anti-CD19 CAR reporter Jurkat cell line was generated by transducing the anti-CD19 CAR lentivirus into an NFAT-luciferase reporter Jurkat cell line. In these cells, the luciferase reporter is activated upon co-culture with CD19/CHO target cells (BPS Bioscience #79561), or Raji cells with endogenous CD19 expression. The anti-CD19 CAR /NFAT-luciferase reporter Jurkat cell line is a great system for primary screening of anti-CD19 CAR and predicting its mechanism of action before testing on patient-derived primary T cells. The same anti-CD19 CAR lentivirus was also used to transduce primary T cells to make primary anti-CD19-CAR T-cells, which showed IFN-γ production and cytotoxic killing of CD19+ tumor cells in co-culture experiments, indicating that there is a good correlation between the reporter activity in CAR reporter Jurkat cell line and functional activation of primary CAR T cells when co-cultured with target cells.
产品介绍
Anti-CD19 CAR/NFAT-luciferase reporter Jurkat cell line is a double stable cell line expressing anti-CD19 CAR and NFAT-luciferase reporter. It is made from the anti-CD19 CAR lentivirus (BPS Bioscience #79851). The reporter cell line has been validated for anti CD19-CAR expression by FACS, and for luciferase reporter activation stimulated by target cells including CD19/CHO recombinant cell line can be used for primary screening and functional validation of anti-CD19 CAR construct and lentivirus before testing in primary T cells.
Anti-CD19 CAR consists of anti-CD19 scFv linked to 3rd generation CAR (Chimeric Antigen Receptor) containing CD28, 4-1BB co-stimulatory domains, and CD3ζ signaling domain.
背景介绍 RPMI 8226 cells are human B cells isolated from a plasmacytoma/myeloma patient. RPMI 8226 cells constitutively express B-Cell Maturation Antigen (BCMA), and offer a physiologically relevant platform to evaluate cancer-directed immunotherapies, such as Chimeric Antigen Receptor (CAR) T cells. The Firefly Luciferase - RPMI 8226 Recombinant Cell Line makes an excellent target to measure specific killing of CAR-T or NK cells targeting BCMA. 产品介绍 Recombinant RPMI 8226 cells constitutively expressing firefly (Photinus pyralis) luciferase.
询价背景介绍 B-Cell Maturation Antigen (BCMA), also known as CD269, is a cell surface receptor of the TNF receptor superfamily that recognizes B-Cell Activating Factor (BAFF). BCMA is preferentially expressed on mature B-lymphocytes and Multiple Myeloma (MM) cells. BCMA is a highly attractive target antigen for immunotherapy, not only because of its restricted expression in non-malignant tissue, but also due to its almost universal expression on MM cells. Pre-clinical studies using CAR (Chimeric Antigen Receptor) T-cells targeting BCMA have demonstrated anti-MM activity, and in 2017, the FDA granted BCMA CAR T-Cell immunotherapy the breakthrough designation for treating Multiple Myeloma. 产品介绍 Recombinant CHO-K1 cells constitutively expressing both the human BCMA protein (B-Cell Maturation Antigen or CD269, GenBank accession #NM_001192) and the Gaussia Luciferase (Δ Signal peptide). Surface expression of BCMA was confirmed by flow cytometry.
询价产品介绍 The IL-8 Promoter Luciferase Reporter Lentivirus are replication incompetent, HIV-based, VSV-G pseudotyped lentiviral particles that are ready to be transduced into almost all types of mammalian cells, including primary and non-dividing cells. The particles contain a firefly luciferase gene driven by the human IL-8 promoter. After transduction, activation of the IL-8 signaling pathway in the target cells can be monitored by measuring the luciferase activity.
询价产品介绍 The IL-2 Promoter Luciferase Reporter Lentivirus are replication incompetent, HIV-based, VSV-G pseudotyped lentiviral particles that are ready to be transduced into almost all types of mammalian cells, including primary and non-dividing cells. The particles contain a firefly luciferase gene driven by the human IL-2 promoter. After transduction, activation of the IL-2 signaling pathway in the target cells can be monitored by measuring the luciferase activity.
询价背景介绍 Lymphocyte-activation gene 3 (LAG3, CD223) is a cell surface protein that belongs to the immunoglobulin (Ig) superfamily. LAG3 is expressed on activated T cells, natural killer cells, B cells, and plasmacytoid dendritic cells. Its main ligand is MHC class II, to which it binds with higher affinity than CD4. It negatively regulates cellular proliferation, activation, and homeostasis of T cells in a similar fashion to CTLA-4 and PD-1, and has been reported to play a role in Treg suppressive function. A number of LAG3 antibodies are in preclinical development for treatments for cancer and autoimmune disorders. LAG3 may be a better immune checkpoint inhibitor target than CTLA-4 or PD-1 since antibodies to these two checkpoints are only activating effector T cells, and not inhibiting Treg activity while an antagonist LAG3 antibody can both activate effector T cells (by downregulating the LAG3 inhibiting signal) and inhibit induced (i.e. antigen-specific) Treg suppressive activity. 产品介绍 Recombinant Jurkat T cell expressing firefly luciferase gene under the control of IL-2 response elements with constitutive expression of human LAG3 (lymphocyte-activation gene 3, CD223, GenBank Accession # NM_002286).
询价背景介绍 A chronic pain mediator, NGF (Nerve Growth Factor) binds to TrkA resulting in activation of the downstream signaling pathway linked to pro-nociception; therefore, targeting the kinase activity of TrkA and the interaction between NGF/TrkA have been attractive tools in pain management research. In addition to control of chronic pain, a recent clinical success has proven that inhibition of TrkA kinase would be a promising anti-cancer strategy. 产品介绍 Recombinant HEK-293 cells expressing firefly luciferase gene under the control of Serum Response Elements (SRE) with constitutive expression of human TrkA (Tropomyosin receptor kinase A; NTRK1; ref. seq. NM_002529.3).
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