Isolation and labelling of human leukocytes with 99mTc

European Journal of Nuclear Medicine
H Kelbaek

Abstract

The role of the leukocyte isolation procedure on cell labelling with 99mTc has been evaluated. Separation of leukocytes was performed by two procedures: sedimentation on methyl cellulose, followed by discontinuous gradient centrifugation; methyl cellulose sedimentation and hypotonic haemolysis of residual red blood cells. After washing the cells in saline and incubation with a stannous pyrophosphate agent, the leukocytes were labelled with 5-10 mCi 99mTc. Procedure 1 gave a higher purity but lower recovery of polymorphonuclear leukocytes, and a minor contamination of red blood cells. 99mTc labelling of cells was slightly more efficient with this method, probably due to the presence of red blood cells. Procedure 1 is recommended for in vitro studies on cell kinetics and procedure 2 is recommended for clinical use.

References

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Citations

Jun 11, 2009·The American Journal of Sports Medicine·Alasdair R DempseyBridget J Munro

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