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This checkpoint is the target of Merck & Co.'s melanoma drug Keytruda, which gained FDA approval in September 2014. The checkpoint is also the target of EMD Serono (Merck KGaA)'s drug Bavencio, which gained FDA approval in 2017. An advantage of targeting PD-1 is that it can restore immune function in the tumor microenvironment.
Checkpoint inhibitor therapy is a form of cancer immunotherapy. The therapy targets immune checkpoints , key regulators of the immune system that when stimulated can dampen the immune response to an immunologic stimulus.
The interaction of these cell surface proteins is involved in the suppression of the immune system and occurs following infection to limit the killing of bystander host cells and prevent autoimmune disease. [2] This immune checkpoint is also active in pregnancy, [3] following tissue allografts, [4] and in different types of cancer. [5]
The prevalence of checkpoint inhibitor induced colitis varies depending on the regimen of immunotherapy. The incidence is 0.7 – 1.6% for anti- programmed cell death protein 1 (PD1) agents, 5.7 – 9.1% for anti- cytotoxic T-lymphocyte associated protein 4 (CTLA-4), and about 13.6% for combination therapy. [ 2 ]
An immune checkpoint regulator is a modulator of the immune system, that allows initiation of a productive immune response and prevents the onset of autoimmunity. Examples of such a molecule are cytotoxic T-lymphocyte antigen 4 (CTLA-4 or CD152), which is an inhibitory receptor found on immune cells and programmed cell death 1 (CD279), which has an important role in down-regulating the immune ...
CHEK2 (Checkpoint kinase 2) is a tumor suppressor gene that encodes the protein CHK2, a serine-threonine kinase. CHK2 is involved in DNA repair , cell cycle arrest or apoptosis in response to DNA damage.
Eftilagimod alpha (INN; [1] development code IMP321 or efti) is a large-molecule cancer drug being developed by the clinical-stage biotechnology company Immutep.Efti is a soluble version of the immune checkpoint molecule LAG-3.
Checkpoint kinase 1, commonly referred to as Chk1, is a serine/threonine-specific protein kinase that, in humans, is encoded by the CHEK1 gene. [ 5 ] [ 6 ] Chk1 coordinates the DNA damage response (DDR) and cell cycle checkpoint response. [ 7 ]