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Related Concept Videos

Determination01:51

Determination

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During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In...
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Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the...
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Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata...
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Related Experiment Video

Updated: Nov 12, 2025

Assessing Signaling Properties of Ectodermal Epithelia During Craniofacial Development
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Craniofacial Development: Neural Crest in Molecular Embryology.

Daniela Marta Roth1, Francy Bayona1, Pranidhi Baddam1

  • 1School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, 7020N Katz Group Centre for Pharmacy & Health Research, 11361-87 Avenue, Edmonton, Alberta, AB, T6G 2E1, Canada.

Head and Neck Pathology
|March 16, 2021
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Neural crest cells (NCCs) are crucial for craniofacial development, forming diverse structures. Understanding their signaling pathways is key for regenerative therapies and treating craniofacial syndromes.

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BoneCartilageNeural crestOrofacial developmentSignalling

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Area of Science:

  • Developmental Biology
  • Embryology
  • Stem Cell Biology

Background:

  • Craniofacial development involves complex embryological events.
  • Neural crest cells (NCCs) are transient, pluripotent stem-like cells originating from the neural tube.
  • NCCs migrate and differentiate to form cartilage, bones, and craniofacial tissues.

Purpose of the Study:

  • To explore the role of neural crest cells in craniofacial development.
  • To understand the signaling pathways regulating NCC differentiation.
  • To highlight the potential of NCCs in regenerative medicine.

Main Methods:

  • Review of developmental biology principles.
  • Analysis of signaling pathways in craniofacial development.
  • Discussion of NCC differentiation and migration.

Main Results:

  • NCCs are essential for forming diverse craniofacial structures.
  • Conserved signaling pathways orchestrate NCC differentiation and development.
  • Defects in NCC development lead to craniofacial abnormalities and syndromes.

Conclusions:

  • NCCs are vital for craniofacial development and tissue formation.
  • Signaling networks control NCC spatial orientation and developmental plasticity.
  • NCC-derived stem cells offer promise for tissue repair and regeneration.