Results 81 to 90 of about 3,043 (170)
Up-regulation of the vitamin C transporter SVCT2 upon differentiation and depolarization of myotubes
In addition to its role as a strong antioxidant, vitamin C regulates the differentiation of several cell lineages. In vertebrate skeletal muscle, the vitamin C transporter SVCT2 is preferentially expressed in slow muscle fibers. To gain insights into the
Low, Marcela +9 more
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Excitatory action of ATP on embryonic chick muscle
It has been suggested that ATP might play a role in synaptic transmission at developing vertebrate neuromuscular junctions. To increase our understanding of the events underlying synapse formation, we have used intracellular recording and patch clamp ...
MG Honig, RI Hume
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1. Single-channel currents induced by acetylcholine (ACh) were recorded from unstriated and non-innervated embryonic chick myotubes using the cell-attached patch-clamp technique. 2.
EUSEBI, Fabrizio +3 more
core
Coated vesicles isolated from 17 d chick embryo skeletal muscle contain acetylcholine receptors (AChRs) as shown by the presence of specific, latent binding sites for 125I-alpha bungarotoxin (125I-alpha-BTX). Since these coated vesicles also contain AChE
K Porter-Jordan +3 more
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Actin filaments and acetylcholine receptor clusters in embryonic chick myotubes.
The tumor-promoting drug 4 beta-phorbol 12-myristate 13-acetate (TPA) causes the loss of myofibrils in primary cultures of chick embryonic myotubes [9]. When myofibrils in chick myotubes are dispersed by TPA treatment (5 X 10(-8) M), there remains a class of non-myofibrillar actin filaments that are sensitive to subsequent breakdown by cytochalasin D ...
J A, Connolly, A J, Graham
openaire +1 more source
The role of myogenic cells in accurate pathway selection and muscle nerve formation was studied in chick embryos. Myotubes were eliminated from the forelimb of the chick embryo by extirpating the somites, which give rise to myogenic cells. Other elements
KA Phelan, M Hollyday
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ATP, a trigger of P2-purinoceptor-mediated polyphosphoinositide (PI) turnover in cultured myotubes, increased cytosolic calcium levels in a time- and dose-dependent manner (quin2 fluorescence). The calcium was released from intracellular stores, as acute
Johan Häggblad +3 more
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The activity of calcium-, phospholipid-dependent protein kinase (PKc) was measured in (a) total extracts, (b) crude membrane, and (c) cytosolic fractions of chick embryo myogenic cells differentiating in culture. Total PKc activity slowly declines during
CAPORALE C +4 more
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Nuclear clustering in myotubes: a proposed role in acetylcholine receptor mRNA expression
We investigated the functional relationship between nuclear topology, as expressed by degree and type of nuclear aggregation, and appearance of acetylcholine receptor (AChR) subunit mRNAs.
Berman, S.A +4 more
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