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Tumor viruses come in a variety of forms: Viruses with a DNA genome, such as adenovirus, and viruses with an RNA genome, like the hepatitis C virus (HCV), can cause cancers, as can retroviruses having both DNA and RNA genomes (Human T-lymphotropic virus and hepatitis B virus, which normally replicates as a mixed double and single-stranded DNA ...
A complete MCV genome was designed from multiple Merkel Cell carcinoma tumors and normal human tissues. [13] Polyomaviruses are small (~5400 base pair), non-enveloped, double-stranded DNA viruses. MCV is the fifth polyomavirus that infects humans to be discovered.
[7] [8] One of the major challenges in cancer treatment is finding treatments that target tumor cells while ignoring non-cancerous host cells. Viruses are chosen because they can target specific receptors expressed by cancer cells that allow for virus entry. One example of this is the targeting of CD46 on multiple myeloma cells by measles virus ...
Efforts to induce this phenomenon have used cancer vaccines (derived from cancer cells or selected cancer antigens), or direct treatment with immune-stimulating factors on skin cancers. [53] Some oncolytic viruses are very immunogenic and may by infection of the tumour, elicit an anti-tumor immune response, especially viruses delivering ...
Polyomaviruses are non-enveloped double-stranded DNA viruses with circular genomes of around 5000 base pairs. With such a small size, they are ranked among the smallest known double stranded DNA viruses. [12] The genome is packaged in a viral capsid of about 40-50 nanometers in diameter, which is icosahedral in shape (T=7 symmetry).
AAV is a non-pathogenic virus, so it is currently being investigated for many gene therapy applications including oncolytic cancer treatments due to its relatively safe nature. AAV also has little risk for insertional mutagenesis , a common problem when dealing with viral vectors, as its transgenes are normally expressed episomally. [ 3 ]
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.
Oncogenomics is a sub-field of genomics that characterizes cancer-associated genes.It focuses on genomic, epigenomic and transcript alterations in cancer. Cancer is a genetic disease caused by accumulation of DNA mutations and epigenetic alterations leading to unrestrained cell proliferation and neoplasm formation.