Indirect radioimmunoassay for thymus leukemia (TL) antigens. [Mice, /sup 125/I tracer technique]

Journal Article · Wed Sep 01 00:00:00 EDT 1976 · J. Immunol.; (United States)

OSTI ID:7141642

Esmon, N L; Little, J R

An indirect radioimmunoassay for thymus leukemia TL antigens has been developed and its specificity documented. The assay makes use of anti-TL antibodies produced in congenic mice (A-Tla/sup b/) and radioiodinated purified rabbit anti-mouse IgG. Using this assay, differences can be detected in the amounts of antigen expressed on thymocytes of the three known phenotypes (TL.1,2,3; TL.2; TL/sup -/) of inbred mouse strains. Significant differences are also detected in comparison of the thymocytes from homozygous TL.1,2,3 mice (A-Tla/sup a/) and heterozygotes from Tla/sup a/ and Tla/sup b/ parents. Optimum conditions for the assay have been established. Its ability to detect antigens on glutaraldehyde-fixed cells and the binding of noncytolytic antibodies on both viable and fixed cells are documented. The assay has also been used to quantitate the changes in TL antigen expression on cells incubated in anti-TL antisera under conditions of antigenic modulation.

• Research Organization: Washington Univ., St. Louis
• OSTI ID: 7141642
• Journal Information: J. Immunol.; (United States), Vol. 117:3
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
ANTIGENS
RADIOIMMUNOASSAY
ANTIBODIES
IODINE 125
LEUKEMIA
MICE
THYMUS
TRACER TECHNIQUES
ANIMALS
BETA DECAY RADIOISOTOPES
BODY
DAYS LIVING RADIOISOTOPES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
HEMIC DISEASES
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
LYMPHATIC SYSTEM
MAMMALS
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
RADIOASSAY
RADIOISOTOPES
RODENTS
VERTEBRATES
550601* - Medicine- Unsealed Radionuclides in Diagnostics