Immunoscintigraphy of adenocarcinomas by means of radiolabeled F(ab')2 fragments of an anti-carcinoembryonic antigen monoclonal antibody: a multicenter study.
Immunoscintigraphy of adenocarcinomas by means of radiolabeled F(ab')2 fragments of an anti-carcinoembryonic antigen monoclonal antibody: a multicenter study.
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使用抗癌胚抗原单克隆抗体的放射性标记 F(ab)2 片段对腺癌进行免疫闪烁扫描:一项多中心研究。
作者:
A. Siccardi;G. Buraggi;L. Callegaro;A. C. Colella;P. D. De Filippi;G. Galli;G. Mariani;R. Masi;R. Palumbo;P. Riva
F(ab')2 fragments of anti-carcinoembryonic antigen (CEA) monoclonal antibody F023C5, determined to be more suitable than intact IgG and Fab fragments for immunoscintigraphy, were labeled with 131I or conjugated to DTPA for instant 111In-labeling, and administered i.v. (2-3 mCi/0.5 mg) to 509 patients in 11 nuclear medicine departments: 284 patients had gastrointestinal adenocarcinomas, 204 had nongastrointestinal adenocarcinomas and 21 were control; serum CEA was elevated in 169 patients, normal in 115, and not determined in 225. The following results were obtained: (a) no adverse reactions; (b) tumor imaging in 324 patients (in particular, in 81.5% CEA-seropositive and in 69.0% CEA-seronegative patients); (c) no significant difference in sensitivity among the results of the 11 departments; (d) no significant difference in overall sensitivity between 131I-and 111In-labeled immunoradiopharmaceuticals; (e) the fraction of documented lesions imaged was 73.3% in CEA-seropositive and 53.7% in CEA-seronegative patients; (f) the detection of liver metastases was hampered, particularly when using the 111In-labeled reagent, by nonspecific radioactivity uptake; (g) the major cause of negative immunoscintigraphy results was a lack of CEA in tumor lesions, as documented by immunohistochemistry; (h) lesion size is also important since the sensitivity was 64% for lesions up to 2 cm in diameter and 84% for larger lesions; (i) many "unexpected" radiolocalizations were recorded. Most were identified as occult tumor lesions. In 35 patients, this finding contributed to the early detection of tumor recurrences.
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DOI:
--
发表时间:
1985
期刊:
Journal of nuclear medicine : official publication, Society of Nuclear Medicine
影响因子:
--
作者:
Hnatowich,DJ;Griffin,TW;Kosciuczyk,C;Rusckowski,M;Childs,RL;Mattis,JA;Shealy,D;Doherty,PW
通讯作者:
Doherty,PW
DOI:
--
发表时间:
1984
期刊:
The Journal of nuclear medicine and allied sciences
影响因子:
--
作者:
Buraggi,GL;Callegaro,L;Turrin,A;Cascinelli,N;Attili,A;Emanuelli,H;Gasparini,M;Deleide,G;Plassio,G;Dovis,M
通讯作者:
Dovis,M
影响因子:
11.2
作者:
Beatty,JD;Duda,RB;Williams,LE;Sheibani,K;Paxton,RJ;Beatty,BG;Philben,VJ;Werner,JL;Shively,JE;Vlahos,WG
通讯作者:
Vlahos,WG
影响因子:
11.2
作者:
Siccardi,AG;Buraggi,GL;Callegaro,L;Mariani,G;Natali,PG;Abbati,A;Bestagno,M;Caputo,V;Mansi,L;Masi,R
通讯作者:
Masi,R
影响因子:
11.2
作者:
Buraggi,GL;Callegaro,L;Mariani,G;Turrin,A;Cascinelli,N;Attili,A;Bombardieri,E;Terno,G;Plassio,G;Dovis,M
通讯作者:
Dovis,M