NATS 1670 Lecture 6: Winter Lecture 6 & 7 - Oncogenic Viruses and Viral Infections
7 Feb 2017
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Document Summary
Some herpes viruses have oncogenic properties as: epstein-barr virus (ebv) has been associated with malignancies such are immunocompromized; found in everyone, but is under control of immune system. Burkitt"s lymphoma disease that can be found in people that. Nasopharyngeal carcinoma found in people living in places such as japan, pacific islands; don"t know if it has to do with. Human papilloma virus (hpv) - effects cervix and genitalia food, or what factors cause it. Other oncogenic viruses: cervical carcinoma, liver cancer. **approximately 40% of human cancer is due to viral infections** Cancer of cervix, anus, penis, vulva/vagina, and disease and primary effusion lymphoma. May inhibit host dna, rna or protein synthesis. Make new (viral) genome and proteins make copies of itself in cell: morphological/functional changes. Cell death: activate the immune system against the infected cells. Hepatitis viruses: lysis: non enveloped viruses. Eventually lead to lack of coagulating factors.
