BPK 140 Chapter Notes - Chapter 5: Angiogenesis Inhibitor, Prostate Cancer, Human Papillomavirus Infection

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 140
• Professor: Stephen Brown

Document Summary

Although some cancers are caused by pathogens. Hpv cervical and other cancers (anus, mouth/throat) Cell multiplication is normally controlled certain genes tell cells when to start multiplying, stop multiplying and die. An accumulation of mutations in certain genes may lead to unregulated growth. A number of things can cause mutations e. g. radiation, chemicals in tobacco smoke. Cancer takes many steps, usually over years or decades. Latent period: time exposed to cancer-causing agent to appearance of cancer. Long latent period makes it difficult to establish cause. Cancer cells are usually killed by white blood cells, but when not killed, can accumulate into tumors. Cancer develops over time through stages, there are multiple steps. Benign tumours stay in one place, do not invade other tissue but can press on organs. Metastasis: spread of disease (e. g. cancer cells) from one place to another.