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1CA II, a potential biomarker by proteomic analysis, exerts significantinhibitory effect on the growth of colorectal cancer cells显示文摘Rui Zhou Wenjun Huang Yuqin Yao Yuxi Wang Ziqiang Li Bin Shao Jian Zhong Minghai Tang Shufang Liang Xia Zhao Aiping Tong Jinliang Yang 2013International Journal of Oncology2013,,2:1
2Multiplex ratiometric gold nanoprobes based on surface-enhanced Raman scattering enable accurate molecular detection and imaging of bladder cancer显示文摘Recently,surface-enhanced Raman scattering(SERS)has been successfully used in the non-invasive detection of bladder tumor(BCa).The internal standard method was considered as an effective ratiometric strategy for calibrating signal fluctuation originated from the interference of measurement conditions and samples.However,it is still difficult to detect the target mRNA quantitatively using the current ratiometric SERS nanosensors.In this study,we developed an internal reference based ratiometric SERS assay.Two kinds of molecular beacons(MB)carrying Raman reporter molecules were anchored on sea-urchinlike Au nanoclusters(AuNCs).Thymidine kinase1(TK1)MBs with hexachlorofluorescein(HEX)were used to capture tumor biomarker TK1 mRNA,and glyceraldehyde 3-phosphate dehydrogenase(GAPDH)MBs with 5(6)-carboxyfluorescein(FAM)were used to offer internal standard signals.The internal reference GAPDH MB can reflect the consistent content of the GAPDH mRNA in single cells.The ratiometric method(I745/I645)can more accurately reflect the content of target mRNA in single cells.The ratiometric nanoprobes had excellent stability(coefficient of variation:0.3%),high sensitivity(detection limit:3.4 pM),high specificity(capable of single-base mismatch recognition)and ribozyme-resistant stability.Notably,the nanoprobes can effectively distinguish BCa cells from normal cells,and it was easy to contour the single BCa cell using the ratiometric method.By combining asymmetric polymerase chain reaction(PCR)and ratiometric nanoprobes,it was easy to distinguish the SERS ratio(I_(745)/I_(645))as low concentration as 10-14 M.Further clinical detection in urine samples from patients with BCa confirmed its potential for early noninvasive diagnosis of BCa with the sensitivity of 80%and specificity of 100%,which is superior to the current urine cytological method.Xiao Liang Pu Zhang Minghai Ma Tao Yang Xiangwei Zhao Rui Zhang Minxuan Jing Rundong Song Lei Wang Jinhai Fan 2022Nano Research2022,15,4:1
3Diagnosis of indirectly driven double shell targets with point-projection hard x-ray radiography显示文摘We present an application of short-pulse laser-generated hard x rays for the diagnosis of indirectly driven double shell targets. Coneinserted double shell targets were imploded through an indirect drive approach on the upgraded SG-II laser facility. Then, based on thepoint-projection hard x-ray radiography technique, time-resolved radiography of the double shell targets, including that of their near-peakcompression, were obtained. The backlighter source was created by the interactions of a high-intensity short pulsed laser with a metalmicrowire target. Images of the target near peak compression were obtained with an Au microwire. In addition, radiation hydrodynamicsimulations were performed, and the target evolution obtained agrees well with the experimental results. Using the radiographic images, arealdensities of the targets were evaluated.Chao Tian Minghai Yu Lianqiang Shan Fengjuan Wu Bi Bi Qiangqiang Zhang Yuchi Wu Tiankui Zhang Feng Zhang Dongxiao Liu Weiwu Wang Zongqiang Yuan Siqian Yang Lei Yang Zhigang Deng Jian Teng Weimin Zhou Zongqing Zhao Yuqiu Gu Baohan Zhang 2024Matter and Radiation at Extremes2024,9,2:0
4cGAS regulates the DNA damage response to maintain proliferative signaling in gastric cancer cells显示文摘The activation of some oncogenes promote cancer cell proliferation and growth,facilitate cancer progression and metastasis by induce DNA replication stress,even genome instability.Activation of the cyclic GMP-AMP synthase(cGAS)mediates classical DNA sensing,is involved in genome instability,and is linked to various tumor development or therapy.However,the function of cGAS in gastric cancer remains elusive.In this study,the TCGA database and retrospective immunohistochemical analyses revealed substantially high cGAS expression in gastric cancer tissues and cell lines.By employing cGAS high-expression gastric cancer cell lines,including AGS and MKN45,ectopic silencing of cGAS caused a significant reduction in the proliferation of the cells,tumor growth,and mass in xenograft mice.Mechanistically,database analysis predicted a possible involvement of cGAS in the DNA damage response(DDR),further data through cells revealed protein interactions of the cGAS and MRE11-RAD50-NBN(MRN)complex,which activated cell cycle checkpoints,even increased genome instability in gastric cancer cells,thereby contributing to gastric cancer progression and sensitivity to treatment with DNA damaging agents.Furthermore,the upregulation of cGAS significantly exacerbated the prognosis of gastric cancer patients while improving radiotherapeutic outcomes.Therefore,we concluded that cGAS is involved in gastric cancer progression by fueling genome instability,implying that intervening in the cGAS pathway could be a practicable therapeutic approach for gastric cancer.BIN LIU HAIPENG LIU FEIFEI REN HANGFAN LIU IHTISHAM BUKHARI YUMING FU WANQINGWU MINGHAI ZHAO SHAOGONG ZHU HUI MO FAZHAN LI MICHAEL B.ZHENG YOUCAI TANG PENGYUAN ZHENG YANG MI 2021Oncology Research2021,29,2:0
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