Toralizumab
Based on 1 Customer Validation
Toralizumab (IDEC-131) is a humanized monoclonal antibody (mAb) against CD40L (CD154) comprised of human gamma 1 heavy chains and human kappa light chains. Toralizumab binds specifically to human CD40L on T cells, thereby preventing CD40 signaling. Toralizumab is an immunosuppressive agent. Toralizumab can lead to increased thrombosis. Toralizumab can be studied in research for diseases such as multiple sclerosis, systemic lupus erythematosus (SLE), and Crohn’s disease.
For research use only. We do not sell to patients.
- Purity: 99.57%
- CAS No.: 252662-47-8
- Molecular Weight:145.66 kDa
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Human IgG1 kappa
Human
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CD40L |
Toralizumab has prothrombotic properties in vitro that are mediated by crystallizable fragment (Fc)-gamma receptor IIa (FcγRIIa)-dependent platelet activation triggered by high-order immune complexes formed by anti-CD154 antibodies crosslinking soluble CD154[4].
Toralizumab (Compound IDEC-131) (0-200 mcg/mL) modestly reduces lymphocyte proliferative responses when used alone in MLR and the reduction is not dose-dependent[5].
Toralizumab blocks the CD62E expression induced by coincubating HEC with D1.1 cells[5].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Outbred rhesus monkeys, 2-5 yr, seronegative for SIV and herpes B[5]
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Dosage:15, 20 mg/kg/dose
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Administration:Intravenous injection (i.v.), day 0, 1, 3, 7 then weekly for 8 w
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Result:Prolonged skin allograft survival up to 45 and 246 days when combined with Rapamycin (HY-10219) (1 mg/kg, p.o.).
Extended the erythema-free survival period in combination of DST plus IDEC-131 and Rapamycin compared with Toralizumab alone or with Rapamycin.
Resulted in a strong proliferative response to their donors and to third party cells when compared with pretransplant MLR in combination with Rapamycin with or without DST.
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
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Human IgG1 kappa
ELISA, FACS, Functional assay
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Immobilized CD40L/CD154/TRAP Protein, Human (His, HY-P72907) can bind Toralizumab. The EC50 for this effect is 5.068 ng/mL. -
Flow cytometric analysis of 1X106 500 ng/mL anti-CD3 stimulated Jurkat cells (24h) labeling Toralizumab (HY-P99325, red). Cells were fixed with 4% paraformaldehyde. Then stained with the primary antibody at 1/200 dilution for an hour at 4℃. Alexa Fluor 488-conjugated AffiniPure Goat Anti-Human IgG H&L (HY-P83776) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Human IgG1 kappa Isotype Control (HY-P99001, blue) was used as the isotype control, cells without incubation with primary antibody were used as the unlabeled control (black).
Chemical Information
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CAS No. 252662-47-8
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Appearance Liquid
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Molecular Weight 145.66 kDa
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Color Colorless to light yellow
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SMILES
[Toralizumab]
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Synonyms
IDEC-131; Anti-Human CD40 ligand Recombinant Antibody
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Shipping
Shipping with dry ice.
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
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Data Sheet (262 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Inhibitory Antibodies User Guide (603 KB)
References
[1]. Camilo E Fadul, et al. Safety and Immune Effects of Blocking CD40 Ligand in Multiple Sclerosis. Neurol Neuroimmunol Neuroinflamm. 2021 Oct 15;8(6):e1096. [Content Brief]
[2]. Kenneth C Kalunian, et al. Treatment of systemic lupus erythematosus by inhibition of T cell costimulation with anti-CD154: a randomized, double-blind, placebo-controlled trial. Arthritis Rheum. 2002 Dec;46(12):3251-8. [Content Brief]
[3]. Murphy, G., & Isenberg, D. A. (2019). New therapies for systemic lupus erythematosus - past imperfect, future tense. Nature reviews. Rheumatology, 15(7), 403-412. [Content Brief]
[4]. Lassiter, G., et al., (2023). TNX-1500, a crystallizable fragment-modified anti-CD154 antibody, prolongs nonhuman primate renal allograft survival. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons, 23(8), 1171-1181. [Content Brief]
[5]. Xu, H., et al., (2003). Studies investigating pretransplant donor-specific blood transfusion, rapamycin, and the CD154-specific antibody IDEC-131 in a nonhuman primate model of skin allotransplantation. Journal of immunology (Baltimore, Md.: 1950), 170(5), 2776-2782. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)