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Vertebrate Embryonic Patterning 5

Vertebrate Embryonic Patterning 5. Neural Crest. Neural Crest Cells. Neural Crest Derivatives. Two major divisions Cranial Trunk PNS Endocrine Melanocytes Facial Cartilage Connective Tissue. Trunk Neural Crest. Neural Crest Cells Stain Positive for ECM Protein HNK-1. RhoB. HNK-1.

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Vertebrate Embryonic Patterning 5

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  1. Vertebrate Embryonic Patterning 5 Neural Crest

  2. Neural Crest Cells

  3. Neural Crest Derivatives Two major divisions Cranial Trunk PNS Endocrine Melanocytes Facial Cartilage Connective Tissue

  4. Trunk Neural Crest

  5. Neural Crest Cells Stain Positive for ECM Protein HNK-1 RhoB HNK-1

  6. Migratory Pathways of Neural Crest ephrins expressed in posterior compartment of somite

  7. Ephrin – Eph RTK Pathway Regulates NC Migration Through/Over Somites Eph RTKs and ephrins appear to regulate boundary formation and cell-cell interactions in many regions of the embryo

  8. Ephrins Repulse Axon Growth

  9. Signals from the Floorplate Induce Axon Migration

  10. Netrin Induces Commissural Axon Growth

  11. Semaphorins Repulse Axons

  12. Axonal Guidance in Invertebrates

  13. Eph RTK & Ephrins Regulate Retinotectal Patterning

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