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Clinical assessment and identification of immuno-oncology markers concerning the 19-gene based risk classifier in stage Ⅳ colorectal cancer

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World Journal of Gastroenterology 2019年第11期25卷 1341-1354页

作者： Jong Lyul Lee seon ae roh Chan Wook Kim Yi Hong Kwon Ye Jin Ha seon-Kyu Kim seon-Young Kim Dong-Hyung Cho Yong Sung Kim Jin Cheon Kim Department of Surgery University of Ulsan College of Medicine Institute of Innovative Cancer Research Asan Medical Center Medical Genomics Research Center Korea Research Institute of Bioscience and Biotechnology School of Life Sciences Kyungpook National University

BACKGROUND Genomic profiling of tumors has contributed to the understanding of colorectal cancer(CRC), facilitating diagnosis, prognosis and selection of treatments,including targeted regimens. A report suggested that a 19-gene-based risk classifier(TCA19) was a prognostic tool for patients with stage III CRC. The survival outcomes in patients with stage IV CRC are still poor and appropriate selection of targeted therapies and immunotherapies is *** To assess clinical implication of TCA19 in patients with stage IV CRC, and to identify TCA19 with involvement in *** A retrospective review of the medical records of 60 patients with stage IV CRC was conducted, assessing clinicopathological variables and progression-free survival(PFS). TCA19 gene expression was determined by quantitative polymerase chain reaction(qPCR) in matched normal and tumor tissues taken from the study cohort. Expression of potential immune-oncology regulatory proteins and targets was examined by immunohistochemistry(IHC), western blot, immunofluorescence staining in tissues from a validation cohort of 10 patients, and in CRC cell lines co-cultured with monocyte in *** In the patients with TCA19 score higher than the median, the PFS rates of eight patients who received the targeted regimens were significantly higher than the PFS rates of four patients who received 5-fluorouracil-based regimen(P = 0.041).In multivariate analysis, expression of signaling lymphocytic activation molecule family, member 7(SLAMF7) and triggering receptor expressed on myeloid cells 1(TREM1) was associated with PFS in the 60-patient cohort. After checking another 10 validate set, the expression of the IHC, the level of real-time qPCR,and the level of western blot were lower for SLAMF7 and higher for TREM7 in primary and metastatic tumors than in normal tissues. In CRC cells expressing SLAMF7 that were co-cultured with a monocytic cell line, levels of CD 68 and CD73 were significant

关键词： Colorectal cancer Prognosis Immunotherapy Signaling lymphocytic activation molecule family,member 7 Triggering receptor expressed on myeloid cells 1

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Gene expression profiling:Canonical molecular changes and clinicopathological features in sporadic colorectal cancers

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World Journal of Gastroenterology 2008年第43期14卷 6662-6672页

作者： Jin Cheon Kim seon Young Kim seon ae roh Dong-Hyung Cho Dae Dong Kim Jeong Hyun Kim Yong Sung Kim Department of Surgery University of Ulsan College of Medicine and Asan Medical Centerand Laboratory of Cancer Biology & GeneticsAsan Institute for Life SciencesSeoul 138-736South Korea Medical Genomics Research Center Korea Research Institute of Bioscience & BiotechnologyDaejeon 305-806South Korea

AIM： To investigate alternative or subordinate pathways involved in colorectal tumorigenesis and tumor growth, possibly determining at-risk populations and predicting responses to treatment. METHODS： Using microarray gene-expression analysis, we analyzed patterns of gene expression relative to canonical molecular changes and clinicopathological features in 84 sporadic colorectal cancer patients, standardized by tumor location. Subsets of differentially expressed genes were confirmed by real-time reverse-transcript polymerase chain reaction （RT-PCR）. RESULTS： The largest number of genes identified as being differentially expressed was by tumor location, and the next largest number by lymphovascular or neural invasion of tumor cells and by mismatch repair （NMR） defects. Amongst biological processes, the immune response was significantly implicated in entire molecular changes observed during colorectal tumorigenesis （P 〈 0.001）. Amongst 47 differentially expressed genes, seven （PISD, NIBP, BAI2, STOML1, MRPL21, MRPL16, and MKKS） were newly found to correlate with tumorigenesis and tumor growth. Most location-associated molecular changes had distinct effects on gene expression, but the effects of the latter were sometimes contradictory. CONCLUSION： We show that several differentially expressed genes were associated with canonical molecular changes in sporadic colorectal cancers, possibly constituting alternative or subordinate pathways of tumorigenesis. As tumor location was the dominant factor influencing differential gene expression, location-specific analysis may identify location-associated pathways and enhance the accuracy of class prediction.

关键词： Colorectal adenocarcinomas Sporadic Gene expression Profiling Tumorigenesis

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Realizing High Thermoelectric Performance in n-Type Se-Free Bi2Te3 Materials by Spontaneous Incorporation of FeTe2 Nanoinclusions

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Energy & Environmental Materials 2024年第4期7卷 344-354页

作者： Jamil Ur Rahman Woo Hyun Nam Yong-Jae Jung Jong Ho Won Jong-Min Oh Nguyen Van Du Gul Rahman Víctor M.García-Suárez Ran He Kornelius Nielsch Jung Young Cho Won-seon Seo Jong Wook roh Sang-il Kim Soonil Lee Kyu Hyoung Lee Hyun Sik Kim Weon Ho Shin Leibniz Institute for Solid State and Materials Research Advanced Materials Convergence R&D Division Korea Institute of Ceramic Engineering & Technology Department of Electronic Materials Engineering Kwangwoon University Department of Energy Engineering Dankook University Faculty of Fundamental Science Phenikaa University Department of Physics Quaid-i-Azam University Departamento de Física Universidad de Oviedo Nanomaterials and Nanotechnology Research Center-CINN Department of Materials Science and Engineering Yonsei University School of Nano & Materials Science and Engineering Kyungpook National University Department of Materials Science and Engineering University of Seoul School of Materials Science and Engineering Changwon National University

Bi2Te3-based materials have drawn much attention from the thermoelectric community due to their excellent thermoelectric performance near room ***,the stability of existing n-type Bi2（Te,Se）3materials is still low due to the evaporation energy of Se (37.70 kJ mol-1) being much lower than that of Te (52.55 kJ mol-1).The evaporated Se from the material causes problems in interconnects of the module while degrading the efficiency.

关键词： Bi2Te3 energy harvesting FeTe2 nanoinclusion n-type materials thermoelectric

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