Neurocristopathies are a class of pathologies in vertebrates, including humans, that result from abnormal expression, migration, differentiation, or death of neural crest cells (NCCs) during embryonic development. NCCs are cells derived from the embryonic cellular structure called the neural crest. Abnormal NCCs can cause a neurocristopathy by chemically affecting the development of the non-NCC tissues around them. They can also affect the development of NCC tissues, causing defective migration or proliferation of the NCCs. There are many neurocristopathies that affect many different types of systems. Some neurocristopathies result in albinism (piebaldism) and cleft palate in humans. Various pigment, skin, thyroid, and hearing disorders, craniofacial and heart abnormalities, malfunctions of the digestive tract, and tumors can be classified as neurocristopathies. This classification ties a variety of disorders to one embryonic origin.

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