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All Journal Ganendra: Majalah IPTEK Nuklir Indonesian Journal of Cancer Chemoprevention
Rizky Juwita Sugiharti
Pusat Teknologi Nuklir Bahan dan Radiometri - BATAN
Biochemistry, Genetics & Molecular Biology Computer Science & IT Medicine & Pharmacology Other

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STUDI AWAL BIODISTRIBUSI NANOMATERIAL 186Re-M41S-NH2 SEBAGAI RADIOFARMAKA UNTUK PROSEDUR RADIOSINOVEKTOMI Sugiharti, Rizky Juwita; Daruwati, Isti; Widyasari, Eva Maria; Christina, Maria
GANENDRA Majalah IPTEK Nuklir Volume 22 Nomor 1 Januari 2019
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.065 KB) | DOI: 10.17146/gnd.2019.22.1.4724

Abstract

Rheumatoid arthritis merupakan penyakit autoimun akibat reaksi antigen-antibodi pada lapisan membran sinovial yang menyebabkan kerusakan pada sendi. Salah satu prosedur radioterapi yang digunakan untuk meredakan nyeri dan inflamasi yang disebabkan oleh rheumatoid arthritis adalah radiosinovektomi yaitu dengan injeksi radioisotop pemancar sinar β secara intra-artikular ke dalam sendi sinovial. M41S-NH2adalah partikel ordered mesoporous silica dengan pori-pori seragam yang berikatan stabil dengan radioisotop renium-186 (186ReO4-) menjadi 186Re-M41S-NH2 yang dikembangkan sebagai radiofarmaka untuk prosedur radiosinovektomi. Untuk mengetahui pola biodistribusi dan stabilitas radiofarmaka 186Re-M41S-NH2 secara in vivo maka dilakukan uji biodistribusi dengan cara menyuntikan 186Re-M41S-NH2secara intra artikular ke dalam sendi tikus normal stok Sprague Dawley. Hasil uji biodistribusi 186Re-M41S-NH2, memperlihatkan partikel radiofarmaka 186Re-M41S-NH2 terakumulasi sebesar (96,80+3,92)% ID di dalam sendi lutut 3 jam pasca injeksi.  Eksresi  radiofarmaka  186Re-M41S-NH2di dalam urin setelah 24 jam adalah sebesar (6,11+0,5)% ID menunjukkan radiofarmaka ini cukup stabil di dalam rongga sendi. Data biodistribusi radiofarmaka 186Re-M41S-NH2memperlihatkan radioaktivitas yang sangat rendah di semua organ non target khususnya di hati dan limpa. Akumulasi radioaktivitas yang kecil di lambung menunjukkan radiofarmaka 186Re-M41S-NH2merupakan kompleks yang stabil secara in vivo dan tidak terurai menjadi ReO4-. Dari uji pendahuluan biodistribusi ini memperlihatkan bahwa radiofarmaka 186Re-M41S-NH2ini cukup ideal sebagai radiofarmaka yang dapat digunakan untuk prosedur radiosinovektomi. 
The Optimization Method for Synthesis of 99mTc-Rutin as Potential Radiotracer in The Development of Cancer Drugs From Flavonoid Widyasari, Eva Maria; Kusumawardhany, Esty; Sugiharti, Rizky Juwita; Sriyani, Maula Eka; Marzuki, Muharam
Indonesian Journal of Cancer Chemoprevention Vol 10, No 2 (2019)
Publisher : Indonesian Society for Cancer Chemoprevention

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14499/indonesianjcanchemoprev10iss2pp80-87

Abstract

Based on the Basic Health Research Data of Ministry of Health's of Indonesia in 2013, mortality rates from malignant and tumor malignancies in Indonesia are still high with prevalence of cancer is about 1.4%. Chemotherapy is still the primary choice in cancer modality that uses chemotherapeutic drugs to eradicate and inhibit the growth of cancer cells; however the cost this treatment is extremely high. Therefore, patient tends to seek alternative treatment such as consuming traditional herbal medicine for cancer treatment. Rutin is one of the attractive phytochemicals flavonoids because of its antioxidant activities. However, as traditional herbal medicine, its effectiveness is not yet been fully established due to the lack of scientific information. A radiotracer can be defined as a specific radiolabeled molecule that monitors the in vivo behaviour of a functional molecule, and can be used to provide biological information in a living system. Hence, to provide pharmacological information of rutin for cancer treatment, we synthesized radiolabeled flavonoid 99mTc-rutin as radiotracer. The aim of the present study is to develop 99mTc-rutin under varying conditions of rutin quantity, reducing agent concentration and incubation time. Labeling studies were performed by changing the selected parameters one by one and optimum labeling conditions were determined. After observing the conditions for maximum labeling efficiency, 99mTc-rutin was obtained with preparation of 700 μg of rutin with addition of 20 μg of SnCl2.2H2O as reductor and 1-3 mCi 99mTcO4- without any incubation. Radiochemical yield of 99mTc-rutin was determined with radio thin layer chromatography which was found 99.28 ± 0.14% and stable up to 4 hour. From the result of this study, the successfully labeled 99mTc-rutin can be used as a reference for following preclinical study. Furthermore radiolabeled 99mTc-rutin is expected as tools in research and development of rutin as cancer drugs from natural product to obtain detailed information its efficacy.Keywords: radiotracer, 99mTc-rutin, cancer, labeled compounds
Co-Authors Christina, Maria Eva Maria Widyasari Isti Daruwati Kusumawardhany, Esty Marzuki, Muharam Maula Eka Sriyani