Monoclonal antibody
Siplizumab (MEDI-507) is an investigational monoclonal antibody with a human IgG1 , kappa directed to CD2 . The agent has shown potent immunomodulatory effects, selectively suppressing the function of T and NK cells , and has been tested as a possible treatment for psoriasis and in the prevention of graft-versus-host disease .[ 1] [ 2] [ 3] [ 4] [ 5]
^ Podestà, Manuel A.; Binder, Christian; Sellberg, Felix; DeWolf, Susan; Shonts, Brittany; Ho, Siu-Hong; Obradovic, Aleksandar; Waffarn, Elizabeth; Danzl, Nichole; Berglund, David; Sykes, Megan (January 2020). "Siplizumab selectively depletes effector memory T cells and promotes a relative expansion of alloreactive regulatory T cells in vitro" . American Journal of Transplantation . 20 (1): 88–100. doi :10.1111/ajt.15533 . PMC 6940533 . PMID 31319439 .
^ Langley, Richard G.; Papp, Kim; Bissonnette, Robert; Toth, Darryl; Matheson, Robert; Hultquist, Micki; White, Barbara (July 2010). "Safety profile of intravenous and subcutaneous siplizumab, an anti-CD2 monoclonal antibody, for the treatment of plaque psoriasis: results of two randomized, double-blind, placebo-controlled studies". International Journal of Dermatology . 49 (7): 818–828. doi :10.1111/j.1365-4632.2010.04512.x . PMID 20618506 . S2CID 21145758 .
^ O'Mahony, Deirdre; Morris, John C.; Stetler-Stevenson, Maryalice; Matthews, Helen; Brown, Margaret R.; Fleisher, Thomas; Pittaluga, Stefania; Raffeld, Mark; Albert, Paul S.; Reitsma, Dirk; Kaucic, Karen; Hammershaimb, Luz; Waldmann, Thomas A.; Janik, John E. (1 April 2009). "EBV-Related Lymphoproliferative Disease Complicating Therapy with the Anti-CD2 Monoclonal Antibody, Siplizumab, in Patients with T-Cell Malignancies" . Clinical Cancer Research . 15 (7): 2514–2522. doi :10.1158/1078-0432.CCR-08-1254 . PMC 7322623 . PMID 19293260 .
^ Adkins, Douglas; Ratanatharathorn, Voravit; Yang, Harry; White, Barbara (27 July 2009). "Safety Profile and Clinical Outcomes in a Phase I, Placebo-Controlled Study of Siplizumab in Acute Graft-Versus-Host Disease" . Transplantation . 88 (2): 198–202. doi :10.1097/TP.0b013e3181abfbf7 . PMID 19623014 .
^ Cvetkovski, Filip; Razavi, Ronia; Sellberg, Felix; Berglund, Erik; Berglund, David (October 2023). "Siplizumab combination therapy with belatacept or abatacept broadly inhibits human T cell alloreactivity in vitro" . American Journal of Transplantation . 23 (10): 1603–1611. doi :10.1016/j.ajt.2023.05.032 . PMID 37270108 .