Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

In vivo traffic of indium-111-oxine labeled human lymphocytes collected by automated apheresis

Journal Article · · Journal of Nuclear Medicine; (USA)
OSTI ID:7063384
; ; ; ;  [1]
  1. National Institutes of Health, Bethesda, MD (USA)
The in vivo traffic patterns of autologous lymphocytes were studied in five normal human volunteers using lymphocytes obtained by automated apheresis, separated on Ficoll-Hypaque gradients, and labeled ex vivo with {sup 111}In-oxine. Final lymphocyte infusions contained 1.8-3.1 X 10(9) cells and 270-390 microCi (9.99-14.43 MBq) {sup 111}In, or 11-17 microCi (0.41-0.63 MBq) per 10(8) lymphocytes. Gamma imaging showed transient lung uptake and significant retention of radioactivity in the liver and spleen. Progressive uptake of activity in normal, nonpalpable axillary and inguinal lymph nodes was seen from 24 to 96 hr. Accumulation of radioactivity also was demonstrated at the forearm skin test site, as well as in its associated epitrochlear and axillary lymph nodes, in a subject who had been tested for delayed hypersensitivity with tetanus toxoid. Indium-111-oxine labeled human lymphocytes may provide a useful tool for future studies of normal and abnormal lymphocyte traffic.
OSTI ID:
7063384
Journal Information:
Journal of Nuclear Medicine; (USA), Journal Name: Journal of Nuclear Medicine; (USA) Vol. 31:6; ISSN 0161-5505; ISSN JNMEA
Country of Publication:
United States
Language:
English