PMID: 13575771Sep 20, 1958Paper

Physiological characteristics of human red blood cell ghosts

The Journal of General Physiology
J F HOFFMAN

Abstract

The properties of ghosts prepared by hypotonic hemolysis at various ratios of cells (C) to hemolyzing solution (H) have been studied. At all ratios, hemoglobin (Hb) was found to be distributed equally between the ghost and supernatant compartments. Techniques employing Fe(59)-labelled Hb showed that during hemolysis all of the Hb is exchangeable and that following hemolysis the ghost is impermeable to Hb. Ghosts containing defined fractions of their original Hb were prepared by appropriately altering the ratio C/H. When washed and suspended in 0.17 M NaCl-PO(4)-buffered media, the ghosts returned to their initial volume, recovered normal shape, and behaved as osmometers. The rate of rehemolysis of these reconstituted ghosts was observed to be proportional to the concentration of Hb in the ghosts. The rate of rehemolysis was accelerated by the addition of n-butyl alcohol (BA). For a given concentration of BA, temperature, and Hb content the rate of rehemolysis was minimal around the isoelectric point of Hb. Rehemolysis by BA was inhibited by the addition of sucrose to the medium. K influx and outflux were measured and found to be increased by the addition of BA and not influenced by the presence of sucrose. These results on the ...Continue Reading

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