A light-up fluorescence assay for tumor cell detection based on bifunctional split aptamers

The Analyst ◽  
2018 ◽  
Vol 143 (15) ◽  
pp. 3579-3585 ◽  
Author(s):  
Yuqiong Sun ◽  
Baoyin Yuan ◽  
Meitao Deng ◽  
Qing Wang ◽  
Jin Huang ◽  
...  

Truncating, splitting and fusing of two aptamers for label-free and one-step fluorescence detection of tumor cells.

Lab on a Chip ◽  
2015 ◽  
Vol 15 (7) ◽  
pp. 1677-1688 ◽  
Author(s):  
Chun-Li Chang ◽  
Wanfeng Huang ◽  
Shadia I. Jalal ◽  
Bin-Da Chan ◽  
Aamer Mahmood ◽  
...  

A parallel flow micro-aperture chip system for detection of circulating tumor cells.


2007 ◽  
Vol 2 ◽  
pp. 117739010700200 ◽  
Author(s):  
Fatma Al-Saeedi

Pentavalent technetium-99m dimercaptosuccinic acid (99mTc-(V)DMSA) is a tumor-seeking agent which was introduced to evaluate, image, and manage many types of cancers. In this review, the beginning of, and the most recent applications of using this agent was appraised. The relation with tumor cell detection and proliferation was reported and several mechanisms of uptake of 99mTc-(V)DMSA in tumor cells are described.


2021 ◽  
Vol 22 (15) ◽  
pp. 8184
Author(s):  
Han Zhou ◽  
Xin Du ◽  
Zhenguo Zhang

In recent years, the increasing incidence and mortality of cancer have inspired the development of accurate and rapid early diagnosis methods in order to successfully cure cancer; however, conventional methods used for detecting tumor cells, including histopathological and immunological methods, often involve complex operation processes, high analytical costs, and high false positive rates, in addition to requiring experienced personnel. With the rapid emergence of sensing techniques, electrochemical cytosensors have attracted wide attention in the field of tumor cell detection because of their advantages, such as their high sensitivity, simple equipment, and low cost. These cytosensors are not only able to differentiate tumor cells from normal cells, but can also allow targeted protein detection of tumor cells. In this review, the research achievements of various electrochemical cytosensors for tumor cell detection reported in the past five years are reviewed, including the structures, detection ranges, and detection limits of the cytosensors. Certain trends and prospects related to the electrochemical cytosensors are also discussed.


1992 ◽  
Vol 10 (10) ◽  
pp. 1534-1539 ◽  
Author(s):  
I J Diel ◽  
M Kaufmann ◽  
R Goerner ◽  
S D Costa ◽  
S Kaul ◽  
...  

PURPOSE At the time of primary surgery, approximately 90% of all patients with breast cancer are free of metastases, but in the next 5 years almost 50% of them will relapse. We evaluated the significance of the presence of tumor cells in bone marrow of patients with primary breast cancer to investigate their predictive value for relapse. PATIENTS AND METHODS Two hundred sixty patients with primary breast cancer were examined for tumor cells in bone marrow aspirates taken from six sites of the skeleton. After density centrifugation, cells in interphase were smeared and stained. For the immunocytologic reaction, we used a new monoclonal antibody (2E11) that was reactive with the core protein of the tumor-associated glycoprotein TAG12. TAG12 is secreted by nearly all human breast carcinomas. RESULTS A significant correlation was found between tumor-cell detection and tumor stage (P < .0001), nodal status (P < .0001), and tumor grading (P = .002). A good relation to progesterone receptor (PR; P = .008) was found, but there was no correlation to estrogen receptor (ER) and menopausal status. Follow-up examinations showed distant metastases in 26 of 211 patients (15%). Twenty-two relapses occurred among the 81 patients with 2E11-positive cells in bone marrow, but only four occurred among the 130 patients without tumor-cell detection. CONCLUSIONS This study suggests that tumor-cell detection in bone marrow of patients with primary breast carcinoma is a good predictor for all distant relapses (P < .0005, Cox multiple regression analysis) and provides additional information in regard to other prognostic factors. The highest predicting value for distant metastasis results from the combination of nodal status, negative PR, and tumor-cell presence in bone marrow.


1987 ◽  
Vol 15 (3) ◽  
pp. 191-200 ◽  
Author(s):  
Masayasu Suzuki ◽  
Nobuyuki Watamabe ◽  
Eiichi Tamiya ◽  
Tetsuro Kataoka ◽  
Tohru Tokunaga ◽  
...  

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