研究生: |
吳心耀 Wu, Shin-Yao |
---|---|
論文名稱: |
SACA細胞自組裝晶片結合快速自動化影像辨識系統及抓取應用於循環腫瘤癌細胞之分析與檢測 Application of high efficient Self-assembled cell-array(SACA) chip and high speed automatic image capture system on clinical detection and analysis for circulating tumor cells |
指導教授: |
曾繁根
Tseng, Fan-Gang |
口試委員: |
楊智勇
Yang, Chih-Yung 陳致真 Chen, Chih-chen |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 奈米工程與微系統研究所 Institute of NanoEngineering and MicroSystems |
論文出版年: | 2018 |
畢業學年度: | 106 |
語文別: | 中文 |
論文頁數: | 87 |
中文關鍵詞: | 細胞自組裝晶片 、自動化影像系統 、細胞抓取 |
外文關鍵詞: | SACA chip, Automatic image system, Cell capture |
相關次數: | 點閱:2 下載:0 |
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惡性腫瘤(癌症)連續三十六年為台灣人十大死因之首,平均每九分鐘就有一人因為癌症而死亡。癌症之所以難以治療,在於癌症發生初期不容易被發現,若長在特殊位置更難以開刀去除。即使切除了原位癌,卻有相當的機率發生癌症轉移,最終遍布身體各處,常常使治療的時間拉長、難度提升。癌症細胞要轉移至血液循環系統成為「循環腫瘤細胞」(Circulating Tumor Cell, CTC),近年的研究表示循環腫瘤細胞的多寡與病情的嚴重性及預後有相當的關係。因此偵測與分析循環腫瘤細胞是近年來重要的研究方向之一,若能於癌症早期發現循環癌細胞,便能積極做早期治療。
本論文利用微流體的特性,以PC為基材做出結構。細胞在螢光抗體標定之後,藉由重力和液體流動產生的側向拉力影響下產生單層緊密排列的自組裝陣列。在SACA晶片觀測區域形成二維陣列,最後以自動化影像檢測系統觀測循環腫瘤癌細胞並計算數量,並通過IRB審查取得醫院中大腸癌病患的血液檢體,而後與流式細胞儀的結果作比較。相較於分析實驗室細胞株的結果,直接分析檢體具有臨床意義且在大量的實驗修正流程後,可以建立有效的臨床分析步驟與數據。
此研究方法製作成本較低,且結構相當簡易,檢體在SACA晶片上三分鐘內即可完成沉降排列。目前,晶片已從原先PMMA壓合SU8載玻片發展成可量產型之塑膠晶片,本論文將著重於建立自動化影像檢測系統與細胞捉取系統。1個觀測區域僅需9分鐘就能將所有螢光資訊儲存下來。除了縮短檢測的時間及減輕實驗人員負擔之外,更可以在檢測後取出循環腫瘤細胞做後續的細胞實驗。本研究的主要成果為:1.可運用於臨床上的檢測裝置。2.更快速的自動化檢測設備。3.細胞捉取設備。未來此檢測方法會應用在醫院中的癌症相關的研究上,捕捉循環腫瘤細胞有助於後續培養或生化分析等實驗。
Malignant tumor is the first of top ten death causes in Taiwan. The difficulty is not only the treatment of malignant tumor eradication, and it is more difficult to prevent cancer metastasis. It makes treatment time stretched and hard. The presence of circulating tumor cells (CTC), known as metastasis-derived cells in the circulation, is associated with a reduced survival in colorectal cancer patients. CTC are also an important indicator of tumor metastasis which contributes to the vast majority of cancer-related deaths. As a strong prognostic factor for overall survival in patients with metastatic cancers, much effort has been exerted to develop means to enumerate CTC and analyze their biological properties. Nevertheless, current approaches on CTC analysis suffered a number of drawbacks including high cost, labor extensive, inefficient, and damage to the isolated CTC. The main objective of this report is to improve the efficiency and sensitivity in identification and characterization of CTC derived from CRC. This report uses a fluid feature for detecting CTCs. Self –Assembled Cell Array(SACA) chip makes up with PC substrate. SACA chip rapidly make assemble cells become into a highly-dense monolayer under a microscope for in-parallel 2D image acquiring.. In the end CTCs can be count by the fluorescence microscope. It has IRB cooperated plan with hospital and allowed to get colorectal cancer and breast cancer patient blood sample to do the clinical research.
This report provides an inexpensive and simple way to make chip and the process costs less than ten minutes. It also builds up the automatic imaging and in-situ cell capturing system to shorten the process time and isolate CTCs after process.
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