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  • 學位論文

探討以不同方法合成131I-IMPY之合成率及對細胞專一性與毒性效果之評估

The study of assessing the synthesis rate and the effects of cell specificity and toxicity of 131I-IMPY

指導教授 : 田育彰
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摘要


131I-IMPY (6-iodo-2(4’-dimethylamino)-phenyl-imidazo[1,2-a]pyridine)是由硫磺素-T (Thioflavin-T)等纖維素染劑衍生而來,修飾原先的結構而展現出完整且適當的腦部代謝藥物動力學,具有高親脂性、體內安定等特性。 而在本研究中,使用了兩種不同的方法進行131I-IMPY的標幟,觀察兩種標幟方法的標幟效率。利用IMPY對於不同細胞進行藥物的吞噬率實驗,並利用不同濃度的藥物對細胞進行毒性與老化率分析,以及使用細胞螢光免疫染色觀察細胞吞噬不同濃度藥物後的表現。 實驗結果顯示氧化性碘化法比同位素交換法有更好的標幟效率。而在細胞實驗的結果中顯示,IMPY對於SH-SY5Y細胞的影響最小。而在細胞螢光免疫染色的結果中發現,當藥物濃度上升時,四種細胞的外型改變、細胞數目逐漸減少,而凋亡的程度也逐漸增加。 本實驗透過觀察IMPY與細胞之間的作用發現細胞對於此藥物的毒性以及耐受程度,但許多交互作用仍未清楚了解,尚待更多研究探討,進一步的運用在醫學影像檢查與治療的領域上。

關鍵字

合成率 細胞 毒性

並列摘要


131I-IMPY, a derivation from thioflavin-T, is a β-amyloid tracer being extremely stable with high lipophilicity. It can be synthesized by redox reaction and isotope exchange reaction. In order to understand the effects of IMPY within cells, the toxicity, the number of phagocytes and aging effects were examined. The cell morphology, numbers and apoptosis were also observed by fluorescent methods. In the results, IMPY had less influence on SH-SY5Y cells. Thus, it requires more experiments to identify the effects of IMPY on cells.

並列關鍵字

synthesis rate cell toxicity

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