Imaging of human melanoma xenografts in nude mice with a radiolabeled monoclonal antibody
External photoscanning with display of radioactivity data as a color-scaled image detected xenografts of human melanoma in male nude inbred mice of BALB/c background 48 hours after injection of /sup 131/I-labeled monoclonal IgG 225.28S that is specific for human melanoma. A /sup 131/I-labeled polyclonal goat IgG against human melanoma-associated antigens could also image the tumor, but with this preparation there was considerable localization of radioactivity in normal tissues, resulting in less satisfactory tumor definition. Labeled normal mouse IgG did not image the melanoma grafts. Assay of radioactivity in tissues of melanoma-grafted mice confirmed tumor-specific localization of the antimelanoma antibodies. The tumor:blood ratio of radioactivity was 6.55 with the monoclonal antimelanoma IgG and 0.45 with the polyclonal IgG.
- Research Organization:
- Department of Pathology, Dalhousie University, Halifax, Nova Scotia, Canada
- OSTI ID:
- 6582058
- Journal Information:
- JNCI, J. Natl. Cancer Inst.; (United States), Vol. 69:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
MELANOMAS
MONOCLONAL ANTIBODIES
SCINTISCANNING
TRANSPLANTS
SPECIFICITY
IMMUNOGLOBULINS
IODINE 131
MICE
ANIMALS
ANTIBODIES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DISEASES
GLOBULINS
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPES
MAMMALS
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
PROTEINS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RODENTS
VERTEBRATES
550601* - Medicine- Unsealed Radionuclides in Diagnostics
551001 - Physiological Systems- Tracer Techniques