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CaNa2EDTA for Improvement of Radioimmunodetection and Radioimmunotherapy with 111In and 90Y-DTPA-Anti-CEA MAbs in Nude Mice Bearing Human Colorectal Cancer
https://repo.qst.go.jp/records/44090
https://repo.qst.go.jp/records/44090040430cd-1220-4346-86f3-264cfd1f4018
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-05-22 | |||||
| タイトル | ||||||
| タイトル | CaNa2EDTA for Improvement of Radioimmunodetection and Radioimmunotherapy with 111In and 90Y-DTPA-Anti-CEA MAbs in Nude Mice Bearing Human Colorectal Cancer | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Watanabe, Naoyuki
× Watanabe, Naoyuki× Oriuchi, Noboru× Endou, Keigo× Inoue, Tomio× Tanada, Shuji× Murata, Hajime× Sasaki, Yasuhito× et.al× 渡辺 直行× 遠藤 啓吾× 井上 登美夫× 棚田 修二× 村田 啓× 佐々木 康人 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 111In and 90Y, dissociated from 111In-labeled-monoclonal antibody (MAb) and 90Y-labeled MAb, may cause deterioration of the image quality in radioimmunodetection (RID) and undesirable irradiation of nontargeted tissue in radioimmunotherapy (RIT), respectively. The aim of this study was to investigate any improvement in RID and RIT with 111In-MAv and 90Y-MAb by pre- and postadministration of calcium disodium ethylenetriaminetetraacetic acid (CaNa2EDTA). Methods: Murine MAb F33-104 against carcinoembryonic antigen (CEA) was labeled with 111In or 90Y by the diethyienetriamine pentaacetic (DTPA)-anhydride method. The influence of CaNa2EDTA on loss of radioactivity from 111In-MAb or 90Y-MAv in serum was investigated in vitro. The effect of CaNa2EDTA, administered before and after 111In-MAb or 90Y-MAb, on the biodistribution of radioactive isotopes in nude mice bearing human colon adenocarcinoma LS 180 tumor expressing CEA, of human pulmonary carcinoma PC9 tumor expressing no CEA, were then examined. As a control, 0.9% NaCl was used in both the in vitro and in vivo studies. Results: CaNa2EDTA did not cause any decrease in levels of radioactivity of radiolabeled MAbs. Pre- and post-treatment with CaNa2EDTA reduced radioctivity in both specific and nonspecific tumors at 72 h after 111In-MAb injection resulting in an increase of the specific tumor-to-nonspecific tumor radioactivity ratio. The levels of hepatic and renal radioactivity were also subsequently decreased by CaNa2EDTA. On the other hand, CaNa2EDTA pre- and post-treatment reduced levels of bony, hepatic and renal radioactivity at 24, 72, and 72 h, respectively, after 90Y-MAv injection, although it had no effect on tumor radioactivity. Conclusion: Pre- and post-treatment with CaNa2EDTA would be of great use in humans who undergo RID or RIT with 111In-MAb and 90Y-MAb accompanied by disassociation of the labeled radionuclides. | |||||
| 書誌情報 |
Journal of Nuclear Medicine 巻 41, p. 337-344, 発行日 2000 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0161-5505 | |||||
