Potassium concentration is reduced in cultured rabbit tracheal smooth muscle cells after withdrawal of serum.
Comparison of elemental concentrations in growth-arrested airway smooth muscle cells with those in their proliferating counterpart showed that potassium (K(+)) was significantly reduced, whereas concentrations of other elements sodium (Na(+)), magnesium (Mg(2+)), phosphorus (P), and chlorine (Cl(-)) remained unchanged. Reduced K(+)concentration was associated with a change in the cells from a spindle shape to a flattened form.
Warley
A
A
EM Unit, Department of Ophthalmology, The Rayne Institute, St Thomas' Hospital, London SE1 7EH. alice.warley@kcl.ac.uk
D000818:Animals; D002478:Cells, Cultured; D002713:Chlorine / Q000032:analysis; D016895:Culture Media, Serum-Free; D004577:Electron Probe Microanalysis; D008297:Male; D009130:Muscle, Smooth / Q000737:chemistry* / Q000648:ultrastructure; D010758:Phosphorus / Q000032:analysis; D011188:Potassium / Q000032:analysis*; D011817:Rabbits; D012964:Sodium / Q000032:analysis; D014132:Trachea / Q000166:cytology*
D016895:Culture Media, Serum-Free; D010758:Phosphorus; D002713:Chlorine; D012964:Sodium; D011188:Potassium