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PUMA has been shown to be active in inducing apoptosis in hematopoietic and intestinal tissue following γ-irradiation. [12] [55] Since inhibition of PUMA does not directly cause spontaneous malignancies, therapeutics to inhibit PUMA function in healthy tissue could lessen or eliminate the side effects of traditional cancer therapies. [7]
p53, also known as Tumor protein P53, cellular tumor antigen p53 (UniProt name), or transformation-related protein 53 (TRP53) is a regulatory protein that is often mutated in human cancers. The p53 proteins (originally thought to be, and often spoken of as, a single protein) are crucial in vertebrates , where they prevent cancer formation. [ 5 ]
Activation of a suicide gene can cause death through a variety of pathways, but one important cellular "switch" to induce apoptosis is the p53 protein. Stimulation or introduction (through gene therapy ) of suicide genes is a potential way of treating cancer or other proliferative diseases.
Canine distemper virus (CDV) is known to cause apoptosis in central nervous system and lymphoid tissue of infected dogs in vivo and in vitro. [109] Apoptosis caused by CDV is typically induced via the extrinsic pathway , which activates caspases that disrupt cellular function and eventually leads to the cells death. [ 92 ]
Neurodegenerative diseases such as Alzheimer's, Parkinson's, and Huntington's are all age-related diseases and involve increased apoptosis where cells die that are still able to function or that contribute to support function of tissue. Apaf-1-ALT is an Apaf-1 mutant found in prostate cancer, which does not have residues 339-1248.
The p53 p63 p73 family is a family of tumor suppressor genes. [1] [2] This gene family codes the proteins: p53; TP73L (also known as "p63") p73; They are sometimes considered part of a "p53 family." When overexpressed, these proteins are known to be involved in tumor pathogenesis. [3]
Programmed cell death (PCD; sometimes referred to as cellular suicide [1]) is the death of a cell as a result of events inside of a cell, such as apoptosis or autophagy. [2] [3] PCD is carried out in a biological process, which usually confers advantage during an organism's lifecycle.
Lung cancer is the second most common type of cancer and leading cause of death in men and women in the United States, it is estimated that there is about 216,000 new cases and 160,000 deaths due to lung cancer. [116] Initiation and progression of lung carcinoma is the result of the interaction between genetic, epigenetic and environmental factors.