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What does SEMA stand for?

SEMA stands for Semaphorin

This definition appears very rarely and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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We have 52 other definitions for SEMA in our Acronym Attic

Samples in periodicals archive:

The publication highlights an important role for antibodies that block the activity of Semaphorin 4D (SEMA4D) in reducing three causes of neuroinflammatory disease including the breakdown of the blood-brain barrier, apoptosis (programmed cell death) of oligodendrocytes precursor cells important for maintaining the myelin coating on neurons, and activation of microglia, innate inflammatory cells of the central nervous system.
Third, two classes of molecular inhibitors to growth are present in the lesioned CNS to actively block axonal growth: inhibitory extracellular matrix proteins, including chondroitin sulfate proteoglycans, and inhibitory proteins present on adult myelin, including Nogo, myelin-associated glycoprotein, oligodendrocyte-myelin glycoprotein, netrin, semaphorins, Wnt proteins, and others [64-66].
Axons--the long extensions formed by growing brain cells--display neuropilin-1, which reacts to proteins called semaphorins or collapsins, which serve as axonal stop signs.