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Imaging of lymph node uptake after intravenous administration of indium-111 metalloporphyrins

Journal Article · · J. Nucl. Med.; (United States)
OSTI ID:5205804
Indium-111- (111In) labeled tetra (N,N,N-trimethylanilinium) porphyrin (TTAP), tetra (N-methyl-4-pyridyl)porphyrin (TMPyP), and tetra(4-sulfonatophenyl)porphyrin (T4SPP) were synthesized and lymph node uptake was measured in animals after intravenous administration. In rats (111In) TTAP had maximum lymph node to muscle uptake ratios which averaged 85:1 between 24 and 48 hr postinjection. Total lymph node uptake was nearly 1% at that time. Lymph nodes in rabbits were clearly visualized by gamma scintigraphy at 48 hr after i.v. injection of labeled TTAP. These results suggest that 111In-labeled TTAP may be a prototype for the development of a class radiopharmaceuticals which permits visualization of lymph nodes after i.v. administration.
Research Organization:
Univ. of Pennsylvania School of Medicine, Philadelphia
OSTI ID:
5205804
Journal Information:
J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 2; ISSN JNMEA
Country of Publication:
United States
Language:
English