Indium-111 T101 monoclonal antibody is superior to iodine-131 T101 in imaging of cutaneous T-cell lymphoma

Journal Article · Sun Mar 01 04:00:00 EST 1987 · J. Nucl. Med.; (United States)

OSTI ID:6593140

Carrasquillo, J A; Mulshine, J L; Bunn, Jr, P A; Reynolds, J C; Foon, K A; Schroff, R W; Perentesis, P; Steis, R G; Keenan, A M; Horowitz, M

We have reported that (/sup 111/In)T101 is highly effective in the detection of cutaneous T-cell lymphoma (CTCL) in nodal and cutaneous (erythroderma and tumor) sites. This study compares the biodistribution of (/sup 131/I)T101 (1 to 7.1 mg, 2 mCi) in four patients with CTCL; two of these patients also received (/sup 111/In)T101 (1 mg, 5 mCi). There was rapid clearance of (/sup 131/I)T101 from whole-body, spleen, liver, and bone marrow, with evidence of loss of /sup 131/I tracer from the T101. Lymph node uptake was minimal in three of four patients, and there was no localization in skin lesions. This contrasted with (/sup 111/In)T101 where there was prolonged retention of activity in these organs and excellent uptake in skin tumors, erythroderma, and lymph nodes. The study showed that (/sup 131/I)T101 was suboptimal for imaging CTCL patients and demonstrates that the isotope or labeling method can dramatically alter the apparent biodistribution and tumor targeting of a given monoclonal antibody.

• Research Organization: National Cancer Institute-Navy Medical Oncology Branch, Bethesda, MD
• OSTI ID: 6593140
• Journal Information: J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 3; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMAL CELLS
ANIMALS
ANTIBODIES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY FLUIDS
CLEARANCE
COMPARATIVE EVALUATIONS
CONNECTIVE TISSUE CELLS
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC USES
DISEASES
DISTRIBUTION
DRUGS
ELECTRON CAPTURE RADIOISOTOPES
INDIUM 111
INDIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
IODINE 131
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LABELLED COMPOUNDS
LEUKOCYTES
LYMPH NODES
LYMPHATIC SYSTEM
LYMPHOCYTES
LYMPHOMAS
MAMMALS
MATERIALS
MICE
MINUTES LIVING RADIOISOTOPES
MONOCLONAL ANTIBODIES
NEOPLASMS
NUCLEI
ODD-EVEN NUCLEI
PATIENTS
RADIOISOTOPES
RADIOPHARMACEUTICALS
RODENTS
SOMATIC CELLS
TISSUE DISTRIBUTION
USES
VERTEBRATES