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( Ching-ling Lin ),( Ming-lin Tsai ),( Yu-hsin Chen ),( Wei-ni Liu ),( Chun-yu Lin ),( Kai-wen Hsu ),( Chien-yu Huang ),( Yu-jia Chang ),( Po-li Wei ),( Shu-huey Chen ),( Li-chi Huang ),( Chia-hwa Lee 한국응용약물학회 2021 Biomolecules & Therapeutics(구 응용약물학회지) Vol.29 No.5
Thyroid cancer is the most common endocrine malignancy. Patients with well-differentiated thyroid cancers, such as papillary and follicular cancers, have a favorable prognosis. However, poorly differentiated thyroid cancers, such as medullary, squamous and anaplastic advanced thyroid cancers, are very aggressive and insensitive to radioiodine treatment. Thus, novel therapies that attenuate metastasis are urgently needed. We found that both PDGFC and PDGFRA are predominantly expressed in thyroid cancers and that the survival rate is significantly lower in patients with high PDGFRA expression. This finding indicates the important role of PDGF/PDGFR signaling in thyroid cancer development. Next, we established a SW579 squamous thyroid cancer cell line with 95.6% PDGFRA gene insertion and deletions (indels) through CRISPR/Cas9. Protein and invasion analysis showed a dramatic loss in EMT marker expression and metastatic ability. Furthermore, xenograft tumors derived from PDGFRA geneedited SW579 cells exhibited a minor decrease in tumor growth. However, distant lung metastasis was completely abolished upon PDGFRA gene editing, implying that PDGFRA could be an effective target to inhibit distant metastasis in advanced thyroid cancers. To translate this finding to the clinic, we used the most relevant multikinase inhibitor, imatinib, to inhibit PDGFRA signaling. The results showed that imatinib significantly suppressed cell growth, induced cell cycle arrest and cell death in SW579 cells. Our developed noninvasive apoptosis detection sensor (NIADS) indicated that imatinib induced cell apoptosis through caspase-3 activation. In conclusion, we believe that developing a specific and selective targeted therapy for PDGFRA would effectively suppress PDGFRA-mediated cancer aggressiveness in advanced thyroid cancers.
Implementation of BOC Signal Acquisition Using a DSP/FPGA Board
Yu-Hsuan Chen,Jyh-Ching Juang,Tsai-Ling Kao 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.2 No.-
Future GNSS signal using BOC modulation brings the advantages of positioning accuracy and multipath rejection. However, the BOC signal has an ambiguous autocorrelation function that complicates the process of acquisition. Three techniques that solve the ambiguous problem are BPSK-like, Sub Carrier Phase Cancellation, and Bump Jumping. In this paper, these methods are implemented by means of a DSP/FPGA board. Moreover, an experiment is conducted to examine and compare the performance of these techniques.
Clinical Features of Patients with Esophageal and Second Primary Cancers
Tsai, Huang-Wen,Chang, Chih-Chun,Sun, Jen-Tang,Liou, Ching-Biau,Lin, Hsiu-Chen,Lin, I-Hsin,Yu, Yun-Chieh,Weng, Wei-Ling,Leong, Ka-I,Yen, Tzung-Hai,Wu, Jiann-Ming Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.22
Background: The prevalence of esophageal cancer (EC) with second primary cancers (SPC) is increasing worldwide. This study was aimed to understand the clinical features of EC patients with SPC in the Taiwanese population. Materials and Methods: Clinical and laboratory data for 180 EC patients with or without SPC were collected between January 2009 and December 2013. Information on treatment approaches, location of SPCs and ABO blood type were also collected and stratified. Results: The most common SPC in EC patients was hypopharyngeal cancer, followed by laryngeal cancer and hepatocellular carcinoma in our study. Malignancies of colon, prostate and lung were also found. There was a significant higher portion of blood type A in the EC patients with SPC compared with those without (42.4% vs 19.5%, P=0.006). Conclusions: The frequency and SPC site distribution and blood type A should be considered in clinical evaluation of EC patients with a high risk of developing SPC in the Taiwanese population.
( Ching-chih Lin ),( Ta-wei Liu ),( Ming-lun Yeh ),( Yi-shan Tsai ),( Pei-chien Tsai ),( Chung-feng Huang ),( Jee-fu Huang ),( Wan-long Chuang ),( Chia-yen Dai ),( Ming-lung Yu ) 대한간학회 2021 Clinical and Molecular Hepatology(대한간학회지) Vol.27 No.2
Background/Aims: Growth hormone (GH) is the main regulator of somatic growth, metabolism, and gender dimorphism in the liver. GH receptor (GHR) signaling in cancer is derived from a large body of evidence, although the GHR signaling pathway involved in the prognosis of hepatocellular carcinoma (HCC) in patients with hepatitis C virus (HCV)-related HCC, remains unclear. We aimed to explore the expression of GHR and analyze its association with clinicopathologic features and prognosis of patients with chronic hepatitis C and HCC. Methods: The expression of GHR mRNA was investigated by quantitative real-time polymerase chain reaction in paired tumors and adjacent non-tumorous (ANT) liver tissues of 200 patients with chronic hepatitis C and HCC. Western blotting and immunofluorescence assays using the HCV-infected Huh7.5.1 cell model was performed. Results: GHR mRNA was significantly lower in HCV-HCC tissues than in corresponding ANT liver tissues. GHR mRNA and protein levels also decreased in the HCV-infected Huh7.5.1 cell model. Notably, lower GHR expression was associated with age of >60 years (P=0.0111) and worse clinicopathologic characteristics, including alpha-fetoprotein >100 ng/mL (P=0.0403), cirrhosis (P=0.0075), vascular invasion (P=0.0052), pathological stage II-IV (P=0.0002), and albumin ≤4.0 g/dL (P=0.0055), which were linked with poor prognosis of HCC. Most importantly, the high incidence of recurrence and poor survival rates in patients with a low ratio of tumor/ANT GHR (≤0.1) were observed, indicating that low expression levels of GHR had great risk for development of HCC in patients with chronic hepatitis C. Conclusions: Our study demonstrates a significant down-regulation of GHR expression as a new unfavorable independent prognostic factor in patients with chronic hepatitis C and HCC. (Clin Mol Hepatol 2021;27:313-328)
Fabrication and Study of Novel Piezoresistive Polymer Composites Sensor for 3D Printing Applications
( Yu-yen Chen ),( Cheng-chun Huang ),( Ching-yuan Su ),( Yao-chuan Tsai ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
With the technology development, the technique of 3D printing has gradually matured. The characteristic of 3D printing is that it can print the product directly without another complex process. If the 3D printing could be applied to manufacturing sensor elements, it could be quicker and cheaper for the sensor element fabrication and the sensor forms will be applicable. Piezoresistive effect is a common sensor sensing principle which is through the deformation of the material to cause the resistance changes. In this study, a piezoresistive polymer composites material was developed, which can be manufactured by the photo-curable 3D printing. The different amount of the conductive carbon black (CB) nanoparticles was employed and added into photo-curable resin for obtaining the conductive percolation threshold of the polymer composites and measuring the piezoresistivity of the polymer composites. The conductive percolation threshold is around 1.0~1.5wt%, and the gauge factor of 1.5wt% is 9~17. The gauge factor was found which would decrease with the increasing strains. This study can be applied on fabricating the piezoresistive pressure and tactile sensors which can be used to the agricultural, industrial and various industries.
On The Security of RFID-based Monitoring Mechanism for Retail Inventory Management
( Yu Yi Chen ),( Jinn Ke Jan ),( Meng Lin Tsai ),( Chun Ching Ku ),( Der Chen Huang ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.2
The aim of this article is to provide a study on the issue of inventory inaccuracy and to show the manner in which RFID technology can improve the inventory management performance. The objective of inventory control is to monitor the stock flow of merchandises in order to understand the operating profit and loss. A proper mechanism of inventory control could be made to help the profitability. As RFID is applied to inventory control, it can improve efficiency, enhance accuracy and achieve security. In this paper, we introduce the evolution of different mechanisms of inventory control with RFID system - counting method, collect-all method, and continuous monitoring method. As for improving the accuracy of inventory check during business hours, continuous monitoring is the solution. We introduce the infrastructure of the RFID inventory management system based on M2M architecture can make the inventory be efficiently monitored with instant warnings.
Yu Cheng Lin,Chih Hung Tsai,Rong Kwei Li,Ching Piao Chen,Hsien Ching Chen 한국품질경영학회 2008 The Asian Journal on Quality Vol.9 No.3
The definition of cycle time is the time from the wafer start to the wafer output. It usually takes one or two months to get the product since customer decides to produce it. The cycle time is a critical factor for customer satisfaction because it represents the response time to the market. Long cycle time reflects the ineffective investment for the capital. The cycle time is very important for foundry because long cycle time will cause customer unsatisfied and the order loss. Consequently, all of the foundries put lots of human source in the cycle time improvement. Usually, we make decisions based on the experience in the cycle time management. We have no mechanism or theory for cycle time management. We do work-in-process (WIP) management based on turn rate and standard WIP (STD WIP) set by experiences. But the experience didn`t mean the optimal solution, when the situation changed, the cycle time or the standard WIP will also be changed. The experience will not always be applicable. If we only have the experience and no mechanism, management will not be work out. After interview several foundry fab managers, all of the fab can`t reflect the situation. That is, all of them will have an impact period after product mix or utilization varied. In this study, we want to develop a formula for standard WIP and use statistical process control (SPC) concept to set WIP upper/lower limit level. When WIP exceed the limit level, it will trigger action plans to compensate WIP Profile. If WIP Profile balances, we don`t need too much WIP. So WIP level could be reduced and cycle time also could be reduced.
( Yu Hsin Lin ),( Chih Hung Tsai ),( Ching En Lee ),( Chung Ching Chiu ) 한국품질경영학회 2007 The Asian Journal on Quality Vol.8 No.2
Constructing an effective production control policy is the most important issue in wafer fabrication factories. Most of researches focus on the input regulations of wafer fabrication. Although many of these policies have been proven to be effective for wafer fabrication manufacturing, in practical, there is a need to help operators decide which lots should be pulled in the right time and to develop a systematic way to alleviate the long queues at the bottleneck workstation. The purpose of this study is to construct a photolithography workstation dispatching rule (PADR). This dispatching rule considers several characteristics of wafer fabrication and influential factors. Then utilize the weights and threshold values to design a hierarchical priority rule. A simulation model is also constructed to demonstrate the effect of the PADR dispatching rule. The PADR performs better in throughput, yield rate, and mean cycle time than FIFO (First-In-First-Out) and SPT (Shortest Process Time).