RADIOIMMUNOIMAGING OF NONSMALL CELL LUNG-CANCER WITH IN-111-LABELED AND TC-99M-LABELED MONOCLONAL ANTI-CEA-ANTIBODIES

被引:6
|
作者
KAIREMO, KJA
ARONEN, HJ
LIEWENDAHL, K
PAAVONEN, T
HEIKKONEN, JJ
VIRKKUNEN, P
MAKIHOKKONEN, H
KARONEN, SL
BROWNELL, AL
MANTYLA, MJ
机构
[1] HELSINKI UNIV,CENT HOSP,DEPT RADIOL,HELSINKI,FINLAND
[2] HELSINKI UNIV,CENT HOSP,DEPT PATHOL,HELSINKI,FINLAND
[3] HELSINKI UNIV,CENT HOSP,DEPT RADIOTHERAPY & ONCOL,HELSINKI,FINLAND
关键词
D O I
10.3109/02841869309096134
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Radiolabeled monoclonal anti-CEA antibodies were used for radioimmunolocalization (RIL) of non-small cell lung cancer; in 30 patients with In-111 labeled anti CEA F(ab')(2) fragment (BW 431/31) and in 16 with Tc-99m-labeled intact MoAb (BW 431/26). RIL results were compared with those of other imaging modalities. Paraffin sections from some patients were also studied immunohistochemically using anti-CEA antibody. Patients with In-111 labeled MoAB were imaged twice 1-4 days after injection and for image enhancement pulmonary and liver/spleen subtraction were performed. Twenty-seven of 28 primary tumors were positive and metastases were detected in all patients The total number of lesions was 78 of which 61 (78%) could be detected by RIL. For verification CT was applied to the study of 46 lesions detected by RIL. We found 6 unknown lesions subsequently verified histologically. Unsing subtraction techniques we detected 9 lesions in 4 patients, later verified as plumonary metastases, not detected in unprocessed images. Pleural, mediastinal and pericardial lesions were also better delineated in subtracted images than in unprocessed images. Imaging of non-small cell lung cancer with Tc-99m-labeled MoAB was performed twice 4-24 h after injection. RIL results were compared with other imaging methods; CT US, conventional radiography, and immunohistochemistry. Twelve out of 16 patients with suspected or known lung cancer had positive immunoscintigrams; 19 of 25 lesions could be detected by RIL. There were 5 false positive and 2 true negative findings. Immunoperoxidase (IF) stainings of paraffin sections of the tumours from 7 patients were performed using two different anti-CEA antibodies; BW 431/26 and ZCEA(1). None of the seven tumors examined by immunohistochemistry were negative when stained by BW 431/26, which was the antibody used for immunoscintigraphy.
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收藏
页码:771 / 778
页数:8
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