» Articles » PMID: 3279423

Early Cross-striation Formation in Twitching Xenopus Myocytes in Culture

Overview
Specialty Science
Date 1988 Mar 1
PMID 3279423
Citations 19
Authors
Affiliations
Soon will be listed here.
Abstract

Spontaneous release of neurotransmitter has been demonstrated in various types of synapses. Its physiological significance, however, is still unknown. In nerve-muscle cultures of embryonic Xenopus laevis, we observed that acetylcholine, which is released spontaneously at the synaptic terminal, caused frequent twitches of muscle cells. These muscle cells developed cross-striations earlier than neighboring non-twitching cells. This effect of innervation was unaffected by tetrodotoxin but was blocked by alpha-bungarotoxin. Repeated iontophoretic application of acetylcholine or KCl to muscle cells caused twitches and also accelerated the formation of cross-striations. Thus twitching apparently promotes lateral alignment of myofibrils. It is also known that myosin synthesis is higher in twitching muscle cells. Therefore, successfully innervated twitching muscle cells may have an advantage for faster differentiation over neighboring non-twitching muscle cells. We suggest that spontaneously released transmitter may serve as a mediator for trophic interaction at forming synapses.

Citing Articles

Structural switch in acetylcholine receptors in developing muscle.

Li H, Teng J, Hibbs R Nature. 2024; 632(8027):1174-1180.

PMID: 39085615 DOI: 10.1038/s41586-024-07774-6.


Development of 3D neuromuscular bioactuators.

Aydin O, Passaro A, Elhebeary M, Pagan-Diaz G, Fan A, Nuethong S APL Bioeng. 2020; 4(1):016107.

PMID: 32161837 PMC: 7064368. DOI: 10.1063/1.5134477.


Mechanical tension and spontaneous muscle twitching precede the formation of cross-striated muscle .

Weitkunat M, Brasse M, Bausch A, Schnorrer F Development. 2017; 144(7):1261-1272.

PMID: 28174246 PMC: 5399620. DOI: 10.1242/dev.140723.


Schwann cell-derived factors modulate synaptic activities at developing neuromuscular synapses.

Cao G, Ko C J Neurosci. 2007; 27(25):6712-22.

PMID: 17581958 PMC: 6672697. DOI: 10.1523/JNEUROSCI.1329-07.2007.


Potentiation of quantal secretion by insulin-like growth factor-1 at developing motoneurons in Xenopus cell culture.

Liou J, Tsai F, Ho S J Physiol. 2003; 553(Pt 3):719-28.

PMID: 14514875 PMC: 2343620. DOI: 10.1113/jphysiol.2003.050955.


References
1.
Kuno M . Quantum aspects of central and ganglionic synaptic transmission in vertebrates. Physiol Rev. 1971; 51(4):647-78. DOI: 10.1152/physrev.1971.51.4.647. View

2.
Tokuyasu K, Dutton A, Singer S . Immunoelectron microscopic studies of desmin (skeletin) localization and intermediate filament organization in chicken skeletal muscle. J Cell Biol. 1983; 96(6):1727-35. PMC: 2112467. DOI: 10.1083/jcb.96.6.1727. View

3.
Blackshaw S, Warner A . Low resistance junctions between mesoderm cells during development of trunk muscles. J Physiol. 1976; 255(1):209-30. PMC: 1309241. DOI: 10.1113/jphysiol.1976.sp011276. View

4.
Klier F, Schubert D, Heinemann S . The ultrastructural differentiation of the clonal myogenic cell line L6 in normal and high K+ medium. Dev Biol. 1977; 57(2):440-9. DOI: 10.1016/0012-1606(77)90228-7. View

5.
Bevan S, Steinbach J . The distribution of alpha-bungarotoxin binding sites of mammalian skeletal muscle developing in vivo. J Physiol. 1977; 267(1):195-213. PMC: 1283609. DOI: 10.1113/jphysiol.1977.sp011808. View