Apoptosis Becomes the New Focus of Investigation among Pharmaceutical Companies Seeking to Treat Illnesses Ranging from Cancer to Cirrhosis.DUBLIN, Ireland -- Research and Markets (http://www.researchandmarkets.com/reports/c32152) has announced the addition of Discoveries and Challenges in Early-Stage Apoptosis Drug Development to their offering. Apoptosis, the major and best-studied pathway of programmed cell death pro·grammed cell death n. See apoptosis. programmed cell death proposed system of cell death, often including poly(ADP)-ribosylation, ensures that a cell will not survive if it is so badly damaged that its recovery would harm the , plays an important role in embryonic development, the immune system immune system Cells, cell products, organs, and structures of the body involved in the detection and destruction of foreign invaders, such as bacteria, viruses, and cancer cells. Immunity is based on the system's ability to launch a defense against such invaders. , and protection against mutations and cancer. As such, it has become an intriguing focus of investigation among pharmaceutical companies seeking to treat illnesses ranging from cancer to cirrhosis. In this report, Decision Resources explain the apoptotic process, discuss several proteins within the apoptotic pathways that may represent potential targets for drug development, describe apoptosis modulators and inhibitors in development, and analyze the challenges associated with developing agents that target this pathway, especially those associated with caspase inhibitors Business Implications --Apoptosis is the major pathway of programmed cell death, or regulated cellular autodestruction, in which individual cells commit suicide Verb 1. commit suicide - kill oneself; "the terminally ill patient committed suicide" kill - cause to die; put to death, usually intentionally or knowingly; "This man killed several people when he tried to rob a bank"; "The farmer killed a pig for the holidays" . As a result of its role in cell development, the immune system, and protection against mutations and cancer, it has been an interesting target for drug developers since the early 1990s; however, no apoptosis drugs have yet reached the market. --Most of the activity in the development of apoptosis drugs has centered on apoptosis inducers for the treatment of cancer. This work has been hampered by the fact that most targets are "undruggable" protein-protein interactions. To circumvent the problem, researchers have focused on the development of antisense antisense, DNA or RNA manipulated in a laboratory so that its components (nucleotides) form a complementary copy of normal, or "sense," messenger RNA (mRNA; see nucleic acid). drugs. The antisense drug nearest to market is oblimersen (Genta's Genasense), a first-generation drug being submitted for approval in the United States and Europe. --Tumor necrosis factor (TNF TNF abbr. tumor necrosis factor TNF, n an abbreviation for tumor necrosis f )-related apoptosis-inducing ligand (TRAIL) is of particular interest to oncology drug developers because it has been found to selectively induce apoptosis in cancer cells independent of p53, which is usually inactivated inactivated rendered inactive; the activity is destroyed. inactivated viruses treated so that they are no longer able to produce evidence of growth or damaging effect on tissue. in human cancers. Evidence suggests that TRAIL may be involved in tumor surveillance by natural killer cells natural killer cells, n.pl lymphocytes that are part of innate immunity that kill foreign substances and abnormal tissues. Decreased number or activi-ty has been linked to a number of diseases, including AIDS, cancer, chronic fatigue syndrome, and in defense against viral infection viral infection, n an infection by a pathogenic virus. A virus acts on the cell nucleus, taking over the genetic material within the nucleus and replicating itself. . --Caspases are a class of proteases that constitute a key component of apoptotic pathways. The development of caspase inhibitors as therapeutics for conditions characterized by excessive apoptosis has been hampered by the existence of alternative pathways of cell death, which have only recently been elucidated. However, Idun, which was recently acquired by Pfizer, has an apoptosis inhibitor, IDN-6556, in Phase II clinical trials for liver disease Liver Disease Definition Liver disease is a general term for any damage that reduces the functioning of the liver. Description The liver is a large, solid organ located in the upper right-hand side of the abdomen. , a condition in which these alternative pathways are not an issue. Contents Include: --Introduction --An Overview of Apoptosis --Characteristics of Apoptosis --Detecting Apoptosis --Role of Apoptosis in Human Development --Role of Apoptosis in Disease --The Apoptotic Pathways --Apoptosis Activators in Development for Cancer --Bcl-2 Inhibitors --IAP Inhibitors --TRAIL Receptor Agonists --Other Intrinsic Pathway Intrinsic pathway One of three pathways in the coagulation cascade. Mentioned in: Partial Thromboplastin Time intrinsic pathway Drug Discovery Methods --Caspase Inhibitors as Antiapoptotic Agents --Challenges to Caspase Inhibitor Development --IDN-6556 --Outlook Companies mentioned in this report include: --Genta --Ascenta Therapeutics --Gemin X --Aegera Therapeutics --Avi BioPharma --Isis/Eli Lilly --Human Genome Sciences/GlaxoSmithKline --Genentech/Amgen --Pfizer --Idun For more information visit http://www.researchandmarkets.com/reports/c32152 Decision Resources |
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