PPT-ONCOGENIC VIRUSES Virus Family

Human Cancer DNA Oncogenic Viruses Papillomaviridae Polyomaviridae   Human papilloma viruses Cervical carcinoma Other genital tract carcinoma Anal Vulval vaginal Penile Esophageal. DNA Enveloped . Viruses. I. Objectives. In this lecture you will learn about properties, pathogenesis, clinical picture and diagnosis of: . Herpesviruses. . (HHVs 1 to 8). Poxviruses. Smallpox Virus. 1. A program that attaches itself to another . executable. (a . host program. ). Whenever the host program is executed, virus code is ran and it can make a copy of itself and infect other executables found in your memory or hard drive. A. Viruses are a unique group of biological entities. 1. They are not capable of surviving without a host cell (lack metabolic machinery). 2. They do, however, contain all the information necessary to direct metabolic processes. Viruses Are Not Cells!. There are several structural and functional differences between cells and viruses. The structural differences include:. No nucleus. No cell membrane. No organelles. The functional differences include:. Are Viruses Living or Non-living?. Biologists consider viruses to be non-living because:. Are not cells. Do not grow or respond to their surroundings. Cannot make food, take in food, or produce wastes. Folder Title: . CxVirus. (. NoTP. ). Updated: April 12, 2017. See Chapter 3, Weinberg, 2. nd. Edition pages 71 to 102. Importance of Virology to. Cancer Biology and Cancer Medicine. Need to Control Potentially Infectious Exposure. VOCABULARY. Virus. Capsid. Envelope. Human . Immunodeficiency Virus (HIV. ). Influenza. Lytic Cycle. Lysogenic Cycle. Lysis. Retrovirus. Prerequisite questions. What are the eight characteristics which all living things have in common. Growth Factor Receptor (EGFR) mutants and its Clinical Implications. . Jeonghee Cho. Samsung. . Genome Institute. Samsung Medical Center . Outline. Mechanistic insight of . cetuximab. -based EGFR targeted therapy . arboviruses. ) are viruses that can be transmitted to man by arthropod vectors. . Arboviruses. belong to three families:. Togaviruses. . Bunyaviruses. e.g. . Sandfly. Fever. .. Flaviviruses. e.g. Yellow Fever, dengue, Japanese Encephalitis. Authority. : International Committee on Taxonomy of . Viruses.. . http. ://. www.ictvdb.org/index.htm. Taxonomic . groups: Order. Family. Subfamily. As a group discuss for 1 minute. Be able to defend your answer for the class!. Are . VIRUSES. alive?. Growth and Development. Reproduce. Change Over Time. Obtain and Use Energy. Maintain Homeostasis. AL-. Fahadawi. Oncogenic . viruses. HPV. EBV. CMV. Oncogenesis. . -An abnormal . growth of . tissue resulting . from . uncontrolled, progressive multiplication . of . cells . and serving no . physiological function. . Viruses are very small – smaller than the smallest cell.. They are usually surrounded by a capsid of proteins.. For replication, viruses rely on their host cells . ie. ., the cells they infect.. Most viruses exhibit a limited host range- they typically infect only specific types of cells of one host species.. A . virus. (from the Latin virus meaning toxin or poison) is a microscopic organism consisting of genetic material (. RNA or DNA. ) surrounded by a protein, lipid, or glycoprotein coat.. Structure of a virus.