Neurite


Neurite

A neurite refers to any projection from the cell body of a neuron. This projection can be either an axon or a dendrite. The term is frequently used when speaking of immature or developing neurons, especially of cells in culture, because it can be difficult to tell axons from dendrites before differentiation is complete.

Neurites are often packed with microtubule bundles, the growth of which is stimulated by Nerve Growth Factor (NGF), as well as tau proteins, MAP1[disambiguation needed ], and MAP2.[1]

The neural cell adhesion molecule N-CAM simultaneously combines with another N-CAM and a fibroblast growth factor receptor to stimulate the tyrosine kinase activity of that receptor to induce the growth of neurites.

There are several software kits available to facilitate neurite tracing in images (see external links).

Weak endogeneous electric fields may be used to both facilitate and direct the growth of projections from cell soma neurites, EFs of moderate strength have been used to direct and enhance neurite outgrowth in both murine and xenopus models. Co-culture of neurons with electrically alligned glial tissue also directs neurite outgrowth, as it is rich in neurotrophins that promote nerve growth.

See also

References

  1. ^ Bear, Mark F; Connors, Barry W.; Paradiso, Michael A., Neuroscience, Exploring the Brain, Philadelphia : Lippincott Williams & Wilkins; Third Edition (February 1, 2006). ISBN 0-7817-6003-8

External links



Wikimedia Foundation. 2010.

Look at other dictionaries:

  • neurite — s.m. [der. di neuro , col suff. ite ]. (anat.) [prolungamento del neurone] ▶◀ assone, cilindrasse …   Enciclopedia Italiana

  • neurite — s. f. O mesmo que nevrite.   ‣ Etimologia: neuro + ite …   Dicionário da Língua Portuguesa

  • Neurite — On appelle neurite tout prolongement du corps cellulaire d un neurone. Il peut s agir d un axone ou d une dendrite. Ce terme est fréquemment utilisé dans le cadre de la biologie du développement en parlant de cellules nerveuses immatures,… …   Wikipédia en Français

  • neurite — A process growing out of a neuron. As it is hard to distinguish a dendrite from an axon in culture, the term neurite is is used for both …   Dictionary of molecular biology

  • neurite — see axon …   Dictionary of invertebrate zoology

  • neurite — noun Any projection from the body of a neuron; either a dendrite or an axon …   Wiktionary

  • neurite — neu·rite n(y)u̇ .rīt n AXON also DENDRITE * * * neu·rite (noorґīt) any of the branched processes extending from the cell body of a neuron; it includes axons, dendrites, and undifferentiated processes such as those seen in immature neurons… …   Medical dictionary

  • neurite — 1neu·rì·te s.f. var. → nevrite. 2neu·rì·te s.m. TS biol. → assone {{line}} {{/line}} DATA: 1931. ETIMO: der. di neuro con 1 ite …   Dizionario italiano

  • neurite — {{hw}}{{neurite}}{{/hw}}V. nevrite …   Enciclopedia di italiano

  • neurite — neurite1 pl.f. neuriti neurite2 pl.m. neuriti …   Dizionario dei sinonimi e contrari


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.