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Cancer: The Intimate Enemy

Explore the relationship between energy use and cancer, causes of cancer, the role of genetic factors, and screening and treatment options for cancer. Learn about the latest advancements in immunotherapy and targeted cancer treatment.

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Cancer: The Intimate Enemy

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  1. Cancer: The Intimate Enemy Honors Anatomy & Physiology 2015-2016

  2. Terms to Know • Neoplasm: New and abnormal tissue growth • Benign: Not harmful; not malignant • Malignant: Harmful; virulent; infectious; of cancer • Metastasis: Ability of single cancercells to break free of normalconfines and travel throughoutthe body; can create secondarytumors elsewhere.

  3. What is the relationship between energy use and cancer? • Cell division requires an enormous amount of energy/ATP. • ATP is consumed at a quick rate, resulting in significant calorie demands to meet the need of rapidly dividing cells. • Cancer patients often experience significant weight loss • Nausea and sickness due to treatment. • Calorie consumption by dividing cancer cells.

  4. Causes of Cancer Environmental Factors • Mutagens: cause alterations to the genetic code. • Carcinogens: specific mutagens that alter the genes that control cell division. • LYSOSOMES are designed to rid our cells of harmful substances before they cause changes. Genetic Factors • Oncogenes: promotes rapid cell division; altered proto-oncogene. • Proto-oncogenes: promotes normal rate of cell division. • Tumor Suppressor genes: control rate and timing of normal cell division; can be altered to allow cell division to go unchecked.

  5. Can a SINGLE Mutation Lead to Cancer? • We learned from our Genetics of Cancer activity on Tuesday • 140 Genes have been identified as possible mutations sites that lead to cancer. • 80 Tumor Suppressor Genes • 60 Proto-oncogene to Oncogenes • MOST cancers require more than one mutation and many require multiple mutations for cancer to develop.

  6. How Many Americans Will Develop Cancer in their Lifetime? • Current data shows that more people will get cancer and more will survive cancer. • ½ of US men will receive a cancer diagnosis in their lifetime. • 1/3 of US women will receive a cancer diagnosis in their lifetime. **Red is SURVIVAL RATE

  7. Screening and Treatment • Aim of cancer screening is to detect cancer BEFORE symptoms appear. • Variety of screening methods; dependent on the type of cancer physicians are screening for. • Physical Exam • Imaging Techniques – Mammography, Ultrasound • Laboratory examination/Biopsy, Blood tests, Genetic testing

  8. Screening and Treatment • The goal of cancer treatment is REMISSION. Remission is a cancer-free screening for 5 consecutive years following the end of treatment. • “Cut, Burn, Poison” is the traditional Surgical removal, Irradiate, and Chemical Infusion to destroy rapidly dividing cells. • Common side effect of Chemotherapy include • Hair loss • Vomiting and diarrhea • Lethargy • New techniques involve Immunotherapy and Targeted Cancer Treatment • Immunotherapy is activating our own immune system to seek and destroy cancer tumors. • Targeted Cancer Treatment is the use of drugs designed to each patient’s specific gene mutation(s) that led to their cancer development.

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