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Related Concept Videos

Cholinergic Neurons: Neurotransmission01:23

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Cholinergic neurotransmission involves the synthesis and the release of acetylcholine (ACh) in order to transmit nerve impulses across the synapse. The process begins with the synthesis of acetyl CoA, a precursor for ACh, from ATP, acetate, and coenzyme A in the mitochondria. Choline, another vital precursor, is transported inside the neuron through choline transporters, including high-affinity choline transporter CHT1, low-affinity choline transporter CTL1, and lower-affinity choline...
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Cholinergic agonists or cholinomimetics mimic the action of acetylcholine to stimulate the parasympathetic nervous system. They are categorized into direct-acting and indirect-acting agents. The direct-acting cholinergic drugs induce the parasympathetic response by directly binding to the muscarinic or nicotine receptors. In comparison, the indirect-acting cholinergic drugs prevent acetylcholine hydrolysis, indirectly contributing to the extended parasympathetic response.
The direct-acting...
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Related Experiment Video

Updated: Mar 23, 2026

Rewiring Neuronal Circuits: A New Method for Fast Neurite Extension and Functional Neuronal Connection
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Polyester with Pendent Acetylcholine-Mimicking Functionalities Promotes Neurite Growth.

Shaofei Wang1, Eric Jeffries2, Jin Gao2

  • 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , 2999 North Renmin Road, Shanghai 201620, P. R. China.

ACS Applied Materials & Interfaces
|March 25, 2016
PubMed
Summary

A novel neuroactive polymer functionalized with acetylcholine (Ach) promotes nerve regeneration by supporting cell proliferation and neurite outgrowth. This biomaterial offers a promising, less toxic approach for nerve tissue engineering applications.

Keywords:
acetylcholinebiomimetic materialdorsal root ganglionnerve regenerationneurite extensionneuronneurotransmitterpoly(glycerol sebacate)

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Area of Science:

  • Biomaterials Science
  • Neuroscience
  • Polymer Chemistry

Background:

  • Nerve regeneration requires biomaterials offering biochemical and mechanical support.
  • Controlled degradation, minimal inflammation, and scar formation are crucial for successful nerve repair.
  • Existing acetylcholine-mimetic polymers face challenges with toxicity and efficacy.

Purpose of the Study:

  • To synthesize and characterize a novel neuroactive polymer, PSeD-Ach, functionalized with acetylcholine (Ach).
  • To evaluate the efficacy of PSeD-Ach in promoting nerve regeneration in vitro.
  • To assess the mechanical and degradation properties of PSeD-Ach for nerve tissue engineering.

Main Methods:

  • Two-step synthesis of PSeD-Ach from poly(sebacoyl diglyceride) (PSeD).
  • Characterization using NMR, FTIR, tensiometry, zetasizer, DSC, and TGA.
  • In vitro evaluation using PC12 cells and primary rat dorsal root ganglions for proliferation, neurite outgrowth, and sprouting.

Main Results:

  • PSeD-Ach demonstrated successful covalent attachment of acetylcholine moieties.
  • PC12 cell proliferation and neurite outgrowth were significantly enhanced on PSeD-Ach compared to controls.
  • PSeD-Ach supported primary neuron adhesion and neurite sprouting comparable to leading methods.
  • The polymer exhibited favorable mechanical properties (76.9 kPa elastic modulus) and controlled in vitro degradation (60% mass loss in 4 weeks).

Conclusions:

  • The synthesized PSeD-Ach polymer effectively mimics acetylcholine functionality for nerve regeneration.
  • This neuroactive polymer supports key cellular processes essential for nerve repair with reduced toxicity.
  • PSeD-Ach presents a versatile and promising biomaterial for nerve tissue engineering applications.