Preclinical Study of 177Lu-DOTA-Trastuzumab: A Potential Radiopharmaceutical for Therapy of Breast Cancer Positive HER-2

  • MARTALENA RAMLI NATIONAL NUCLEAR ENERGY OF INDONESIA
  • BASUKI HIDAYAT DR. HASAN SADIKIN GENERAL HOSPITAL
  • SRI AGUSWARINI NATIONAL NUCLEAR ENERGY OF INDONESIA
  • KARYADI KARYADI NATIONAL NUCLEAR ENERGY OF INDONESIA
  • CAHYA NOVA ARDIYATNO NATIONAL NUCLEAR ENERGY OF INDONESIA
  • HAMMAD SUBUR NATIONAL NUCLEAR ENERGY OF INDONESIA
  • TITIS SEKAR HUMANI NATIONAL NUCLEAR ENERGY OF INDONESIA
  • RIEN RITAWIDYA NATIONAL NUCLEAR ENERGY OF INDONESIA
  • ABDUL MUTALIB NATIONAL NUCLEAR ENERGY OF INDONESIA
  • JOHAN MASJHUR DR. HASAN SADIKIN GENERAL HOSPITAL

Abstract

Radiopharmaceutical 177Lu-(1,4,7,10-tetraazacyclododecane-N,N’,N”,N”’-tetra acetic acid)-trastuzumab (177Lu-DOTA-trastuzumab), based on antihuman epithelial receptor type 2 (HER-2) monoclonal antibody which is expected to be potential for diagnostic and therapeutic agent of breast cancer positive HER-2, had been successfully prepared with radiochemical purity of > 99%. Preclinical studies aimed in providing basic data for clinical trial and particularly in finding out the effectiveness of 177Lu-DOTA-trastuzumab in killing cancer cells which over express HER-2, have been performed. The data included urine and faeces clearance tests, imaging with gamma camera and cytotoxicity test. The results showed that the excretion of radioactivity post injection of 177Lu-DOTA-trastuzumab in normal rats were more rapid through urine as compared to the excretion through faeces. The gamma camera image on normal rat 144 hours post injection of 177Lu-DOTA-trastuzumab showed that there was remaining a trace of radioactivity in hepatic area. The residue of radioactivity (< 5%, quantified by biodistribution test) was found to be relatively lower than reported for 111In-NSL-trastuzumab. However, this residue of radioactivity has to be seriously considered when 177Lu-DOTA-trastuzumab is going to be applied for treatment of cancer. Cytotoxicity test showed that 177Lu-DOTA-trastuzumab was far more effective in killing cancer cells positive HER-2 (SKOV-3 cell lines) than that of trastuzumab.

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Published
2013-09-30
How to Cite
RAMLI, MARTALENA et al. Preclinical Study of 177Lu-DOTA-Trastuzumab: A Potential Radiopharmaceutical for Therapy of Breast Cancer Positive HER-2. JURNAL ILMU KEFARMASIAN INDONESIA, [S.l.], v. 11, n. 2, p. 116-122, sep. 2013. ISSN 2614-6495. Available at: <http://jifi.farmasi.univpancasila.ac.id/index.php/jifi/article/view/203>. Date accessed: 27 dec. 2024.
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Vol 11 No 2 (2013): JIFI
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