Belatacept is a soluble fusion protein, which links the extracellular domain of human cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) to the modified Fc (hinge, CH2, and CH3 domains) portion of human immunoglobulin G1 (IgG1). Structurally, abatacept is a glycosylated fusion protein with a MALDI-MS molecular weight of 92,300 Da and it is a homodimer of two homologous polypeptide chains of 357 amino acids each. It is produced through recombinant DNA technology in mammalian CHO cells. The drug has activity as a selective co-stimulation modulator with inhibitory activity on T lymphocytes. It is approved for the treatment of rheumatoid arthritis. Belatacept selectively blocks the process of T-cell activation. It was developed by Bristol-Myers-Squibb. Belatacept is only 2 amino acids different from abatacept (Orencia). FDA approved on June 15, 2011.
For prophylaxis of organ rejection. It is also used concomitantly with basiliximumab for induction therapy, mycophenolate, and corticosteriods in kidney transplant recepients that are seropositive for the Epstein-Barr virus.
CHU de Nantes, Nantes, France
Duke University Health System, Durham, North Carolina, United States
Washington University School of Medicine, Saint Louis, Missouri, United States
Houston Methodist Hospital, Houston, Texas, United States
PPD Austin Clinic, Austin, Texas, United States
Covance, Inc., Dallas, Texas, United States
Henri Mondor Hospital, Creteil, France
Emory University Hospital, Atlanta, Georgia, United States
Emory Clinic, Atlanta, Georgia, United States
Brigham and Women's Hospital, Boston, Massachusetts, United States
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