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William S. Klug Michael R. Cummings Charlotte A. Spencer Concepts of Genetics Eighth Edition Chapter 18 Cell Cycle Regulation and Cancer Copyright © 2006.

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Presentation on theme: "William S. Klug Michael R. Cummings Charlotte A. Spencer Concepts of Genetics Eighth Edition Chapter 18 Cell Cycle Regulation and Cancer Copyright © 2006."— Presentation transcript:

1 William S. Klug Michael R. Cummings Charlotte A. Spencer Concepts of Genetics Eighth Edition Chapter 18 Cell Cycle Regulation and Cancer Copyright © 2006 Pearson Prentice Hall, Inc.

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3 Cancer Is a Genetic Disease About 1% are associated with germline mutations

4 Figure 18-1a Copyright © 2006 Pearson Prentice Hall, Inc.

5 Figure 18-1b Copyright © 2006 Pearson Prentice Hall, Inc.

6 Cancer Is a Genetic Disease What Is Cancer? The Clonal Origin of Cancer Cells Cancer As a Multistep Process, Requiring Multiple Mutations

7 Figure 18-2 Copyright © 2006 Pearson Prentice Hall, Inc.

8 Figure 18-3 Copyright © 2006 Pearson Prentice Hall, Inc. Cancers often develop in progressive steps

9 Cancer Cells Contain Genetic Defects Affecting Genomic Stability and DNA Repair Link: Aneuploidy can cause cancer

10 Figure 18-4a Copyright © 2006 Pearson Prentice Hall, Inc.

11 Figure 18-4b Copyright © 2006 Pearson Prentice Hall, Inc. Homogeneous

12 Figure 18-5 Copyright © 2006 Pearson Prentice Hall, Inc.

13 Gleevec

14 Tomlins et al.

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18 Figure 18-6 Copyright © 2006 Pearson Prentice Hall, Inc. HNPCC (hereditary nonpolyposis colorectal cancer) Pedigree – defects in mismatch repair

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20 Cancer Cells Contain Genetic Defects Affecting Cell Cycle Regulation The Cell Cycle and Signal Transduction Cell Cycle Control and Checkpoints

21 Figure 18-7 Copyright © 2006 Pearson Prentice Hall, Inc.

22 Figure 18-8 Copyright © 2006 Pearson Prentice Hall, Inc.

23 Figure 18-9 Copyright © 2006 Pearson Prentice Hall, Inc.

24 Figure 18-10 Copyright © 2006 Pearson Prentice Hall, Inc. Apoptosis may occur if damage is severe

25 Many Cancer-Causing Genes Disrupt Control of the Cell Cycle

26 Table 18-2 Copyright © 2006 Pearson Prentice Hall, Inc.

27 Figure 18-11 Copyright © 2006 Pearson Prentice Hall, Inc. Ras proto-oncogenes

28 Figure 18-12 Copyright © 2006 Pearson Prentice Hall, Inc.

29 Figure 18-13 Copyright © 2006 Pearson Prentice Hall, Inc.

30 The p53 Tumor Suppressor Gene (the “guardian of the genome”)

31 Figure 18-14 Copyright © 2006 Pearson Prentice Hall, Inc.

32 The RB1 Tumor Suppressor Gene

33 Figure 18-15 Copyright © 2006 Pearson Prentice Hall, Inc.

34 Figure 18-16 Copyright © 2006 Pearson Prentice Hall, Inc.

35 from Arnold et al. (2005), Cancer 104:2035-2047 Epigentic gene silencing can play a role in cancer

36 Cancer Is a Genetic Disorder Affecting Cell–Cell Contact

37 Figure 18-17 Copyright © 2006 Pearson Prentice Hall, Inc.

38 Predisposition to Some Cancers Can Be Inherited

39 Table 18-3 Copyright © 2006 Pearson Prentice Hall, Inc.

40 Figure 18-18 Copyright © 2006 Pearson Prentice Hall, Inc.

41 Figure 18-19 Copyright © 2006 Pearson Prentice Hall, Inc.

42 Viruses Contribute to Cancer in Both Humans and Animals

43 Figure 18-20 Copyright © 2006 Pearson Prentice Hall, Inc.

44 Table 18-4 Copyright © 2006 Pearson Prentice Hall, Inc.

45 Table 18-5 Copyright © 2006 Pearson Prentice Hall, Inc. New idea about viruses and cancer Research article, Zhao et al 2007 Links:

46 Cervical Cancer Vaccine Gets Injected With a Social Issue Some Fear a Shot For Teens Could Encourage Sex By Rob Stein Washington Post Staff Writer Monday, October 31, 2005; Page A03 Vaccine Prevents Most Cervical Cancer Published: October 7, 2005 http://www.biol.sc.edu/~awaldman/HPVvaccine.htm Link:

47 NYTimes article on new teatment Link:

48 Environmental Agents Contribute to Human Cancers

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