Urokinase Plasminogen Activator u PA and its Receptor
- Slides: 16
Urokinase Plasminogen Activator (u. PA) and its Receptor u. PAR
The Importance of Cell Movements In Development Early embryogenesis Organ & tissue development Organ & tissue remodeling throughout life In defense & disease Immune responses Wound healing Invasion & metastasis
Hepatacyte Growth Factor (HGF) is a Powerful Inducer of Epithelial Cell Motility Figure 14. 24 The Biology of Cancer (© Garland Science 2007)
EGF Secreted by Mθs Induces Motility in Breast Carcinoma Cells Recall: Figure 14. 23 b The Biology of Cancer (© Garland Science 2007)
Rho Family Small G Proteins Play Central Roles in Cell Motility and Invasiness Rac, Cdc 42, Rho and their GEFs (eg Tiam 1 Rac) are all involved in the orchestration of extension/sensing/contraction and MMP secretion that are involved in the movement of cells across surfaces. A role for Rho proteins is demonstrated by studies of melanoma. filopodium
The Lymphatic System
Draining Lymph Nodes Can be Destinations for Metastatic Cells Metastasis to draining lymph node Figure 14. 41 a The Biology of Cancer (© Garland Science 2007)
The ‘Seed and Soil’ Principle – Some Tissues are More Susceptible to Colonization by Particular Tumors Than Others Figure 14. 42 The Biology of Cancer (© Garland Science 2007)
Figure 14. 44 The Biology of Cancer (© Garland Science 2007)
Breast Cancer Tends to be Osteolytic & Prostate Cancer Tends to be Osteoblastic Figure 14. 46 The Biology of Cancer (© Garland Science 2007)
The Osteoblastic Cascade Figure 14. 48 The Biology of Cancer (© Garland Science 2007)
Table 14. 4 The Biology of Cancer (© Garland Science 2007)
Cytokeratin-free Bone Marrow Augurs Well Figure 14. 50 a The Biology of Cancer (© Garland Science 2007)
Gene Expression Signatures Show Some Promise as Prognostic Indicators Figure 14. 51 a The Biology of Cancer (© Garland Science 2007)
Instigators & Responders – Implications for Micrometastases Mc. Callister et al. , Cell 133: 994 (2008)
Figure 14. 53 The Biology of Cancer (© Garland Science 2007)
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