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Attenuation involves deleting viral genes, or gene regions, to eliminate viral functions that are expendable in tumour cells, but not in normal cells, thus making the virus safer and more tumour-specific. Cancer cells and virus-infected cells have similar alterations in their cell signalling pathways, particularly those that govern progression ...
An oncovirus or oncogenic virus is a virus that can cause cancer. [4] This term originated from studies of acutely transforming retroviruses in the 1950–60s, [ 5 ] when the term oncornaviruses was used to denote their RNA virus origin. [ 6 ]
Cancer; Candidiasis ("Thrush") Chagas disease; Chickenpox; Copenhagen disease; Croup; Cystic fibrosis; Cytomegalovirus (the virus most frequently transmitted before birth) Dental caries; Type 1 diabetes; Diphtheria; Duchenne muscular dystrophy; Fifth disease; Congenital Heart Disease; Infectious mononucleosis; Influenza; Intussusception ...
Herpesviruses also cause cancer in animals, especially leukemias and lymphomas. [13] Human T cell lymphotropic virus was the first human retrovirus discovered by Robert Gallo and colleagues at NIH. [20] The virus causes Adult T-cell leukemia, a disease first described by Takatsuki and colleagues in Japan [21] and other neurological diseases ...
Initial symptoms include fever, rash, aching muscles, sore throat, vomiting and diarrhea, while more advanced symptoms of the disease include delirium, liver failure, shock and organ failure.
Sequencing of the virus from Merkel cell cancers reveals that it generally has tumor-specific mutations that truncate the MCV T antigen. These mutations (which are not found in native virus obtained from nontumor sites) eliminate the T antigen helicase, preventing the integrated virus from replicating independently from the host cancer cell. [10]
SV40 is an abbreviation for simian vacuolating virus 40 or simian virus 40, a polyomavirus that is found in both monkeys and humans.Like other polyomaviruses, SV40 is a DNA virus that is found to cause tumors in humans and animals, but most often persists as a latent infection.
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