Abstract
Biodistribution of monoclonal antibody T43 and its F(ab')2 111In-DTPA conjugates were determined in nu/nu mice bearing human breast tumor and rat pituitary tumor xenografts. T43 localized in the target tumor with tumor/blood ratios of 3.9 (P less than 0.01) and 4.5 (P less than 0.05) at 48 and 72 h, respectively. T43 F(ab')2 fragments localized with tumor/blood ratio of 14.2 (P less than 0.1) at 72 h. Tumors as small as 4 mm were detected without computer subtraction technique. These studies suggest that T43 and T43 F(ab')2 might be useful reagents in radioimaging.
Publication types
-
Research Support, Non-U.S. Gov't
-
Research Support, U.S. Gov't, P.H.S.
MeSH terms
-
Animals
-
Antibodies, Monoclonal*
-
Breast Neoplasms / physiopathology*
-
Cell Line
-
Enzyme-Linked Immunosorbent Assay
-
Female
-
Humans
-
Immunoglobulin Fab Fragments / immunology
-
Indium Radioisotopes / pharmacokinetics
-
Mice
-
Mice, Inbred BALB C
-
Mice, Inbred C57BL
-
Mice, Nude
-
Neoplasm Transplantation
-
Neoplasms, Experimental / physiopathology*
-
Pentetic Acid*
-
Tissue Distribution
-
Transplantation, Heterologous
Substances
-
Antibodies, Monoclonal
-
Immunoglobulin Fab Fragments
-
Indium Radioisotopes
-
Pentetic Acid