| DEDICATION | 6 |
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| PREFACE | 7 |
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| ABOUT THE EDITORS... | 9 |
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| ABOUT THE EDITORS... | 10 |
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| PARTICIPANTS | 11 |
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| Table of Contents | 13 |
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| CHAPTER 1 APC and ß-Catenin Degradation | 17 |
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| Introduction | 17 |
| APC Is a Critical Component of the ß-Catenin Destruction Complex | 17 |
| The Role of APC in Recruiting ß-Catenin to the Complex | 19 |
| Phosphorylation of APC Enhances Affinity for ß-Catenin | 20 |
| A Possible Role of PP2A in Regulating Competition between APC and Axin for ß-Catenin Binding | 20 |
| Is There a Role for the Destruction Complex in the Nucleus? | 22 |
| Regulation of APC and the Destruction Complex by Wnt Signaling | 22 |
| Phospho-Dvl and Frat | 22 |
| Axin/LRP Binding | 23 |
| Wnt Regulation of APC Stability | 24 |
| Does APC also Play a Positive Role in Wnt/ß-Catenin Signaling? | 24 |
| Conclusion | 24 |
| References | 25 |
| CHAPTER 2 Nuclear APC | 29 |
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| Abstract | 29 |
| Introduction | 29 |
| Detection of Nuclear APC | 29 |
| APC Domains Contributing to Nuclear Import and Export | 30 |
| APC Shuttles between the Nucleus and Cytoplasm | 34 |
| Factors that Affect the Subcellular Distribution of APC | 34 |
| APC and Nuclear Export of ß-Catenin | 37 |
| APC and Nuclear Sequestration of ß-Catenin | 38 |
| The Role of Other Nuclear Proteins in APC Mediated ß-Catenin Sequestration | 39 |
| Interaction of APC with DNA and Other Nuclear Proteins | 40 |
| The Requirement for Nuclear APC in Tumor Suppression | 40 |
| Future Applications, New Research, and Anticipated Developments | 42 |
| Acknowledgements | 42 |
| References | 43 |
| CHAPTER 3 APC in Cell Migration | 46 |
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| Abstract | 46 |
| Introduction | 46 |
| APC Localization in Migrating Cells | 47 |
| Actin-Dependent Localization of APC at Cell-Cell Contacts | 48 |
| Microtubule-Dependent Localization of APC at Protrusive Sites | 48 |
| Regulation of APC Localization During Cell Migration | 49 |
| APC and Protrusive Activity | 50 |
| APC and Regulation of the Microtubule Cytoskeleton | 50 |
| APC and Regulation of the Actin Cytoskeleton | 50 |
| APC and Cell Polarity | 51 |
| APC, Microtubule Anchoring and Centrosome Reorientation | 51 |
| APC and Polarity Proteins | 52 |
| Conclusion | 52 |
| Acknowledgements | 53 |
| References | 53 |
| CHAPTER 4 The APC-EB1 Interaction | 57 |
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| Abstract | 57 |
| Introduction | 57 |
| EB1 Is an Evolutionarily Conserved Microtubule Plus-End Binding Protein | 57 |
| The EB1 Binding Region in APC | 58 |
| The APC Binding Site in EB1 | 58 |
| Interphase Functions of the APC-EB1 Interaction | 60 |
| Mitotic Functions of the APC-ED1 Interaction | 61 |
| APC-EB1 Interactions in Other Organisms | 63 |
| Conclusion | 63 |
| Acknowledgments | 63 |
| References | 63 |
| CHAPTER 5 The Role of APC in Mitosis and in Chromosome Instability | 67 |
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| Abstract | 67 |
| Introduction | 67 |
| APC in Mitotic Cells | 68 |
| APC Regulates Microtubule Dynamics in Mitosis | 71 |
| APC Function in the Spindle Checkpoint | 73 |
| APC and Microtubule Dynamics in Cytokinesis | 74 |
| The Dominant Activity of APC in Mitosis-The Tip of the Iceberg | 77 |
| References | 78 |
| CHAPTER 6 Role of APC and Its Binding Partners in Regulating Microtuhules in Mitosis | 81 |
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| Abstract
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