POTASSIUM CONCENTRATION IS REDUCED IN CULTURED RABBIT TRACHEAL SMOOTH MUSCLE CELLS AFTER WITHDRAWAL OF SERUM

Authors


EM Unit, Dept of Ophthalmology, GKT Medical and Dental Schools, The Rayne Institute, St Thomas' Hospital, London SE1, 7EH. Email: alice.warley@kcl.ac.uk. Fax: 020 7401 9206.

Abstract

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 (Mg2+), 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.

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