|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Genetic Polymorphisms in the Precursor MicroRNA Flanking Region and Non-Small Cell Lung Cancer Survival显示文摘 | Hu, Zhibin Shu, Yongqian Chen, Yijiang Chen, Jiaping Dong, Jing Liu, Yao Pan, Shiyang Xu, Lin Xu, Jing Wang, Yi Dai , Juncheng Ma, Hongxia Jin, Guangfu Shen,Hongbing | 2011 | 南京医科大学学报(自然科学版)2011,31,6: | 8 |
| 2 | 校近期发表IF≥4.0的SCI论文摘要--Common genetic variants on 5p15.33 contribute to risk of lung adenocarcinoma in a Chinese population显示文摘 | Jin Guangfu Shu Yongqian Tian Tian Liang Jie Xu Yan Wang Furu Chen Jianjian Dai Juncheng Hu Zhibin Shen Hongbing Xu Lin | 2009 | 南京医科大学学报(自然科学版)2009,29,10: | 7 |
| 3 | Prognostic assessment of apoptotic gene polymorphisms in non-small cell lung cancer in Chinese显示文摘Apoptosis plays a key role in inhibiting tumor growth, progression and resistance to anti-tumor therapy. We hypothesized that genetic variants in apoptotic genes may affect the prognosis of lung cancer. To test this hypothesis, we selected 38 potentially functional single nucleotide polymorphisms (SNPs) from 12 genes (BAX, BCL2, BID, CASP3, CASP6, CASP7, CASP8, CASP9, CASP10, FAS, FASLG and MCL1) involved in apoptosis to assess their prognostic significance in lung cancer in a Chinese case cohort with 568 non-small cell lung cancer (NSCLC) patients. Thirty-five SNPs passing quality control underwent association analyses, 11 of which were shown to be significantly associated with NSCLC survival (P<0.05). After Cox stepwise regression analyses, 3 SNPs were independently associated with the outcome of NSCLC (BID rs8190315: P=0.003; CASP9 rs4645981: P=0.007 and FAS rs1800682: P=0.016). A favorable survival of NSCLC was significantly associated with the genotypes of BID rs8190315 AG/GG (adjusted HR=0.65, 95% CI: 0.49-0.88), CASP9 rs4645981 AA (HR=0.22, 95% CI: 0.07-0.69) and FAS rs1800682 GG (adjusted HR=0.67, 95% CI: 0.46-0.97). Time-dependent receptor operation curve (ROC) analysis revealed that the area under curve (AUC) at year 5 was significantly increased from 0.762 to 0.819 after adding the risk score of these 3 SNPs to the clinical risk score. The remaining 32 SNPs were not significantly associated with NSCLC prognosis after adjustment for these 3 SNPs. These findings indicate that BID rs8190315, CASP9 rs4645981 and FAS rs1800682 polymorphisms in the apoptotic pathway may be involved in the prognosis of NSCLC in the Chinese population. | Songyu Cao Cheng Wang Xinen Huang Juncheng Dai Lingmin Hu Yao Liu Jiaping Chen Hongxia Ma Guangfu Jin Zhibin Hu Lin Xu Hongbing Shen | 2013 | The Journal of Biomedical Research2013,27,3: | 6 |
| 4 | U-shaped association between telomere length and esophageal squamous cell carcinoma risk: a case-control study in Chinese population显示文摘在由维持 chromosomal 正直并且阻止染色体的生物变老的一个关键角色结束的 Telomeres 玩熔化。流行病学的研究建议了 telomere 长度的内部个人的差别能影响倾向到多重癌症,但是关于食道的有鳞的房间癌(ESCC ) 的证据仍然是不明确的。几 telomere 在白种人的长度相关的单个核苷酸多型性(TLSNP ) 在染色体宽的协会研究被报导了。然而,在 ESCC 开发的 telomere 长度和 TL-SNPs 的效果是不清楚的。因此,我们进行了盒子控制研究(1045 个 ESCC 案例和 1433 控制) 在中国人口评估在 telomere 长度, TL-SNPs,和 ESCC 风险之间的协会。作为结果, ESCC 案例显示出全面更短的相对 telomere 长度(RTL )( 中部:1.34 ) 比控制(中部:1.50, P < 0.001 ) 。更有趣地,一个明显的非线性的U字形的协会在 RTL 和 ESCC 风险之间被观察( P < 0.001 )与比率(95%信心间隔)等于到 2.40 的机会( 1.843.14 ), 1.36 ( 1.031.79 ), 1.01 ( 0.761.35 ),并且 1.37 ( 1.031.82 )为个人在第一(最短),第二,第三,并且 第5 (最长) quintile 分别地,在是的 第4 quintile 与那些相比引用组。没有重要协会在八报导 TL-SNPs 和 ESCC 危险性之间被观察。这些调查结果建议短或极其长的 telomeres 可以是为在中国人口的 ESCC 的风险因素。 | Jiangbo Du Wenjie Xue Yong Ji Xun Zhu Yayun Gu Meng Zhu Cheng Wang Yong Gao Juncheng Dai Hongxia Ma Yue Jiang Jiaping Chen Zhibin Hu Guangfu Jin Hongbing Shen | 2015 | Frontiers of Medicine2015,9,4: | 4 |
| 5 | RNA-seq analysis identified hormone-related genes associated with prognosis of triple negative breast cancer显示文摘Triple negative breast cancer(TNBC) is an aggressive subtype of breast cancer that currently lacks effective biomarkers and therapeutic targets required to investigate the diagnosis and treatment of TNBC. Here we performed a comprehensive differential analysis of 165 TNBC samples by integrating RNA-seq data of breast tumor tissues and adjacent normal tissues from both our cohort and The Cancer Genome Atlas(TCGA). Pathway enrichment analysis was conducted to evaluate the biological function of TNBC-specific expressed genes. Further multivariate Cox proportional hazard regression was performed to evaluate the effect of these genes on TNBC prognosis. In this report, we identified a total of 148 TNBC-specific expressed genes that were primarily enriched in mammary gland morphogenesis and hormone levels related pathways, suggesting that mammary gland morphogenesis might play a unique role in TNBC patients differing from other breast cancer types. Further survival analysis revealed that nine genes(FSIP1, ADCY5, FSD1, HMSD, CMTM5, AFF3, CYP2 A7, ATP1 A2,and C11 orf86) were significantly associated with the prognosis of TNBC patients, while three of them(ADCY5,CYP2 A7, and ATP1 A2) were involved in the hormone-related pathways. These findings indicated the vital role of the hormone-related genes in TNBC tumorigenesis and may provide some independent prognostic markers as well as novel therapeutic targets for TNBC. | Fei Chen Yuancheng Li Na Qin Fengliang Wang Jiangbo Du Cheng Wang Fangzhi Du Tao Jiang Yue Jiang Juncheng Dai Zhibin Hu Cheng Lu Hongbing Shen | 2020 | The Journal of Biomedical Research2020,34,2: | 4 |
| 6 | Comprehensive functional annotation of susceptibility variants identifies genetic heterogeneity between lung adenocarcinoma and squamous cell carcinoma显示文摘Although genome-wide association studies have identified more than eighty genetic variants associated with non-small cell lung cancer(NSCLC)risk,biological mechanisms of these variants remain largely unknown.By integrating a large-scale genotype data of 15581 lung adenocarcinoma(AD)cases,8350 squamous cell carcinoma(SqCC)cases,and 27355 controls,as well as multiple transcriptome and epigenomic databases,we conducted histology-specific meta-analyses and functional annotations of both reported and novel susceptibility variants.We identified 3064 credible risk variants for NSCLC,which were overrepresented in enhancer-like and promoter-like histone modification peaks as well as DNase I hypersensitive sites.Transcription factor enrichment analysis revealed that USF1 was AD-specific while CREB1 was SqCC-specific.Functional annotation and genebased analysis implicated 894 target genes,including 274 specifics for AD and 123 for SqCC,which were overrepresented in somatic driver genes(ER=1.95,P=0.005).Pathway enrichment analysis and Gene-Set Enrichment Analysis revealed that AD genes were primarily involved in immune-related pathways,while SqCC genes were homologous recombination deficiency related.Our results illustrate the molecular basis of both wellstudied and new susceptibility loci of NSCLC,providing not only novel insights into the genetic heterogeneity between AD and SqCC but also a set of plausible gene targets for post-GWAS functional experiments. | Na Qin Yuancheng Li Cheng Wang Meng Zhu Juncheng Dai Tongtong Hong Demetrius Albanes Stephen Lam Adonina Tardon Chu Chen Gary Goodman Stig EBojesen Maria Teresa Landi Mattias Johansson Angela Risch H-Erich Wichmann Heike Bickeboller Gadi Rennert Susanne Arnold Paul Brennan John KField Sanjay Shete Loic Le Marchand Olle Melander Hans Brunnstrom Geoffrey Liu Rayjean JHung Angeline Andrew Lambertus AKiemeney Shan Zienolddiny Kjell Grankvist Mikael Johansson Neil Caporaso Penella Woll Philip Lazarus Matthew BSchabath Melinda CAldrich Victoria LStevens Guangfu Jin David CChristiani Zhibin Hu Christopher IAmos Hongxia Ma Hongbing Shen | 2021 | Frontiers of Medicine2021,15,2: | 3 |
| 7 | Ultrabroadband and multiband infrared/terahertz photodetectors with high sensitivity显示文摘Broadband response is pursued in both infrared(IR)and terahertz(THz)detection technologies,which find their applications in both terrestrial and astronomical realms.Herein,we report an ultrabroadband and multiband IR/THz detector based on blocked-impurity-band detecting principle.The detectors are prepared by implanting phosphorus into germanium(Ge:P),where photoresponses with a P impurity band,a self-interstitial defect band,and a vacancy-P(V-P)pair defect band are realized simultaneously.The response spectra of the detectors show ultrabroad and dual response bands in a range of 3-28μm(IR band)and 40-165μm(THz band),respectively.Additionally,a tiny mid-IR(MIR)band within 3-4.2μm is embedded in the IR band.The THz band arises from the P impurity band,whereas the IR and the MIR bands are ascribed to the two defect bands.At150 m V and 4.5 K,the peak detectivities of the three bands are obtained as 2.9×10^(12) Jones(at 3.9μm),6.8×10^(12) Jones(at 16.3μm),and 9.9×10^(12) Jones(at 116.5μm),respectively.The impressive coverage andsensitivity of the detectors are promising for applications in IR and THz detection technologies. | JIAQI ZHU HE ZHU MENGJUAN LIU YAO WANG HANLUN XU NASIR ALI HUIYONG DENG ZHIYONG TAN JUNCHENG CAO NING DAI HUIZHEN WU | 2021 | Photonics Research2021,9,11: | 2 |
| 8 | Association of assisted reproductive technology, germline de novo mutations and congenital heart defects in a prospective birth cohort study显示文摘Emerging evidence suggests that children conceived through assisted reproductive technology(ART)have a higher risk of congenital heart defects(CHDs)even when there is no family history.De novo mutation(DNM)is a well-known cause of sporadic congenital diseases;however,whether ART procedures increase the number of germline DNM(gDNM)has not yet been well studied.Here,we performed whole-genome sequencing of 1137 individuals from 160 families conceived through ART and 205 families conceived spontaneously.Children conceived via ART carried 4.59 more gDNMs than children conceived spontaneously,including 332 paternal and 1.26 maternal DNMs,after correcting for parental age at conception,cigarette smoking,alcohol drinking,and exercise behaviors.Paternal DNMs in offspring conceived via ART are characterized by C>T substitutions at CpG sites,which potentially affect protein-coding genes and are significantly associated with the increased risk of CHD.In addition,the accumulation of non-coding functional mutations was independently associated with CHD and 87.9% of the mutations were originated from the father.Among ART offspring,infertility of the father was associated with elevated paternal DNMs;usage of both recombinant and urinary follicle-stimulating hormone and high-dosage human chorionic gonadotropin trigger was associated with an increase of maternal DNMs.In sum,the increased gDNMs in offspring conceived by ART were primarily originated from fathers,indicating that ART itself may not be a major reason for the accumulation of gDNMs.Our findings emphasize the importance of evaluating the germline status of the fathers in families with the use of ART. | Cheng Wang Hong Lv Xiufeng Ling Hong Li Feiyang Diao Juncheng Dai Jiangbo Du Ting Chen Qi Xi Yang Zhao Kun Zhou Bo Xu Xiumei Han Xiaoyu Liu Meijuan Peng Congcong Chen Shiyao Tao Lei Huang Cong Liu Mingyang Wen Yangqian Jiang Tao Jiang Chuncheng Lu Wei Wu Di Wu Minjian Chen Yuan Lin Xuejiang Guo Ran Huo Jiayin Liu Hongxia Ma Guangfu Jin Yankai Xia Jiahao Sha Hongbing Shen Zhibin Hu | 2021 | Cell Research2021,31,8: | 2 |
| 9 | Genetic variants at chromosome 9p21, 10p15 and 10q22 and breast cancer susceptibility in a Chinese population显示文摘 | Jiaping Chen Yue Jiang Xiaoan Liu Zhenzhen Qin Juncheng Dai Guangfu Jin Hongxia Ma Shui Wang Xinru Wang Zhibin Hu Hongbing Shen | 2012 | Breast Cancer Research and Treatment2012,,2: | 1 |
| 10 | A genetic variant at KIF1B predicts clinical outcome of HBV-related hepatocellular carcinoma in Chinese显示文摘 | Mingde Huang Yun Pan Jibin Liu Fuzhen Qi Juan Wen Kaipeng Xie Hongxia Ma Hongbing Shen Yao Liu Juncheng Dai | 2014 | Cancer Epidemiology2014,,5: | 1 |
| 11 | Birth defects in children conceived by in vitro fertilization and intracytoplasmic sperm injection: a meta-analysis显示文摘 | Juan Wen Jie Jiang Chenyue Ding Juncheng Dai Yao Liu Yankai Xia Jiayin Liu Zhibin Hu | 2012 | Fertility and Sterility2012,,: | 1 |
| 12 | Genetic variants at 10q 23.33 are associated with plasma lipid levels in a Chinese population显示文摘Plasma lipid abnormalities are implicated in the pathogenic process of type 2 diabetes.The IDE-KIF11-HHEX gene cluster on chromosome 10q23.33 has been identified as a susceptibility locus for type 2 diabetes.We hypothesized that genetic variants at 10q23.33 may be associated with plasma lipid concentrations.Seven tagging single nucleotide polymorphisms(SNPs:rs7923837,rs2488075,rs947591,rs11187146,rs5015480,rs4646957 and rs1111875) at 10q23.33 were genotyped in 3,281 subjects from a Han Chinese population,using the TaqMan OpenArray and Sequenom MassARRAY platforms.Multiple linear regression analyses showed that SNP rs7923837 in the 3'-flanking region of HHEX was significantly associated with triglyceride levels(P = 0.019,0.031 mmol/L average decrease per minor G allele) and that rs2488075 and rs947591 in the downstream region of HHEX were significantly associated with total cholesterol levels(P = 0.041,0.058 mmol/L average decrease per minor C allele and P = 0.018,0.063 mmol/L average decrease per minor A allele,respectively).However,the other four SNPs(rs11187146,rs5015480,rs4646957 and rs1111875) were not significantly associated with any plasma lipid concentrations in this Chinese population.Our data suggest that genetic variants in the IDE-KIF11-HHEX gene cluster at 10q23.33 may partially explain the variation of plasma lipid levels in the Han Chinese population.Further studies are required to confirm these findings in other populations. | Sijun Liu Yun Qian Feng Lu Meihua Dong Yudi Lin Huizhang Li Chong Shen Juncheng Dai Yue Jiang Guangfu Jin Zhibin Hu Hongbing Shen | 2014 | The Journal of Biomedical Research2014,28,1: | 1 |
| 13 | Identification of A-to-I RNA editing profiles and their clinical relevance in lung adenocarcinoma显示文摘Adenosine-to-inosine(A-to-I)RNA editing is a widespread posttranscriptional modification that has been shown to play an important role in tumorigenesis.Here,we evaluated a total of 19,316 RNA editing sites in the tissues of 80 lung adenocarcinoma(LUAD)patients from our Nanjing Lung Cancer Cohort(NJLCC)and 486 LUAD patients from the TCGA database.The global RNA editing level was significantly increased in tumor tissues and was highly heterogeneous across patients.The high RNA editing level in tumors was attributed to both RNA(ADAR1 expression)and DNA alterations(mutation load).Consensus clustering on RNA editing sites revealed a new molecular subtype(EC3)that was associated with the poorest prognosis of LUAD patients.Importantly,the new classification was independent of classic molecular subtypes based on gene expression or DNA methylation.We further proposed a simplified model including eight RNA editing sites to accurately distinguish the EC3 subtype in our patients.The model was further validated in the TCGA dataset and had an area under the curve(AUC)of the receiver operating characteristic curve of 0.93(95%CI:0.91-0.95).In addition,we found that LUAD cell lines with the EC3 subtype were sensitive to four chemotherapy drugs.These findings highlighted the importance of RNA editing events in the tumorigenesis of LUAD and provided insight into the application of RNA editing in the molecular subtyping and clinical treatment of cancer. | Cheng Wang Mingtao Huang Congcong Chen Yuancheng Li Na Qin Zijian Ma Jingyi Fan Linnan Gong Hui Zeng Liu Yang Xianfeng Xu Jun Zhou Juncheng Dai Guangfu Jin Zhibin Hu Hongxia Ma Fengwei Tan Hongbing Shen | 2022 | Science China(Life Sciences)2022,65,1: | 1 |
| 14 | Genetic variants at 5p15 are associated with risk and early onset of gastric cancer in Chinese populations显示文摘 | Jiangbo Du Yaochu Xu Juncheng Dai Chuanli Ren Chen Zhu Ningbin Dai Hongxia Ma Yongyong Shi Zhibin Hu Dongxin Lin Hongbing Shen Guangfu Jin | 2013 | Carcinogenesis2013,,11: | 1 |
| 15 | Gene amplification-driven RNA methyltransferase KIAA1429 promotes tumorigenesis by regulating BTG2 via m6A-YTHDF2-dependent in lung adenocarcinoma显示文摘Background:Epigenetic alterations have been shown to contribute immensely to human carcinogenesis.Dynamic and reversible N6-methyladenosine(m6A)RNA modification regulates gene expression and cell fate.However,the reasons for activation of KIAA1429(also known as VIRMA,an RNA methyltransferase)and its underlying mechanism in lung adenocarcinoma(LUAD)remain largely unexplored.In this study,we aimed to clarify the oncogenic role of KIAA1429 in the tumorigenesis of LUAD.Methods:Whole-genome sequencing and transcriptome sequencing of LUAD data were used to analyze the gene amplification of RNA methyltransferase.The in vitro and in vivo functions of KIAA1429 were investigated.Transcriptome sequencing,methylated RNA immunoprecipitation sequencing(MeRIP-seq),m6A dot blot assays and RNA immunoprecipitation(RIP)were performed to confirm the modified gene mediated by KIAA1429.RNA stability assays were used to detect the half-life of the target gene.Results:Copy number amplification drove higher expression of KIAA1429 in LUAD,whichwas correlatedwith poor overall survival.Manipulating the expression of KIAA1429 could regulate the proliferation and metastasis of LUAD.Mechanistically,the target genes of KIAA1429-mediated m6A modification were confirmed by transcriptome sequencing and MeRIP-seq assays.We also revealed that KIAA1429 could regulate BTG2 expression in an m6A-dependent manner.Knockdown of KIAA1429 significantly decreased the m6A levels of BTG2 mRNA,leading to enhanced YTH m6A RNA binding protein 2(YTHDF2,the m6A“reader”)-dependent BTG2 mRNA stability and promoted the expression of BTG2;thus,participating in the tumorigenesis of LUAD.Conclusions:Our data revealed the activation mechanism and important role of KIAA1429 in LUAD tumorigenesis,which may provide a novel view on the targeted molecular therapy of LUAD. | Chang Zhang Qi Sun Xu Zhang Na Qin Zhening Pu Yayun Gu Caiwang Yan Meng Zhu Juncheng Dai ChengWang Ni Li Guangfu Jin Hongxia Ma Zhibin Hu Erbao Zhang Fengwei Tan Hongbing Shen | 2022 | Cancer Communications2022,42,7: | 1 |
| 16 | Genome-wide analysis of runs of homozygosity identifies new susceptibility regions of lung cancer in Han Chinese显示文摘Runs of homozygosity (ROHs) are a class of important but poorly studied genomic variations and may be involved in individual susceptibility to diseases. To better understand ROH and its relationship with lung cancer, we performed a genome-wide ROH analysis of a subset of a previous genome-wide case-control study (1,473 cases and 1,962 controls) in a Han Chinese population. ROHs were classified into two classes, based on lengths, intermediate and long ROHs, to evaluate their association with lung cancer risk using existing genome-wide single nucleotide polymorphism (SNP) data. We found that the overall level of intermediate ROHs was significantly associated with a decreased risk of lung cancer (odds ratio=0.63; 95% confidence interval: 0.51-0.77; P=4.78×10-6 ), while the long ROHs seemed to be a risk factor of lung cancer. We also identified one ROH region at 14q23.1 that was consistently associated with lung cancer risk in the study. These results indicated that ROHs may be a new class of variation which may be associated with lung cancer risk, and genetic variants at 14q23.1 may be involved in the development of lung cancer. | Cheng Wang Zhengfeng Xu Guangfu Jin Zhibin Hu Juncheng Dai Hongxia Ma Yue Jiang Lingmin Hu Minjie Chu Songyu Cao Hongbing Shen | 2013 | The Journal of Biomedical Research2013,27,3: | 1 |
| 17 | A novel long-term intravenous combined with local treatment with human amnion-derived mesenchymal stem cells for a multidisciplinary rescued uremic calciphylaxis patient and the underlying mechanism显示文摘Calciphylaxis is a rare disease characterized histologically by microvessel calcification and microthrombosis,with high mortality and no proven therapy.Here,we reported a severe uremic calciphylaxis patient with progressive skin ischemia,large areas of painful malodorous ulcers,and mummified legs.Because of the worsening symptoms and signs refractory to conventional therapies,treatment with human amnion-derived mesenchymal stem cells(hAMSCs)was approved.Preclinical release inspections of hAMSCs,efficacy,and safety assessment,including cytokine secretory ability,immunocompetence,tumorigenicity,and genetics analysis in vitro,were introduced.We further performed acute and long-term hAMSC toxicity evaluations in C57BL/6 mice and rats,abnormal immune response tests in C57BL/6 mice,and tumorigenicity tests in neonatal Balbc-nu nude mice.After the preclinical research,the patient was treated with hAMSCs by intravenous and local intramuscular injection and external supernatant application to the ulcers.When followed up to 15 months,the blood-based markers of bone and mineral metabolism improved,with skin soft tissue regeneration and a more favorable profile of peripheral blood mononuclear cells.Skin biopsy after 1-month treatment showed vascular regeneration with mature noncalcified vessels within the dermis,and 20 months later,the re-epithelialization restored the integrity of the damaged site.No infusion or local treatment-related adverse events occurred.Thus,this novel long-term intravenous combined with local treatment with hAMSCs warrants further investigation as a potential regenerative treatment for uremic calciphylaxis due to effects of inhibiting vascular calcification,stimulating angiogenesis and myogenesis,anti-inflammatory and immune modulation,multidifferentiation,re-epithelialization,and restoration of integrity. | Lianju Qin Jing Zhang Yujie Xiao Kang Liu Yugui Cui Fangyan Xu Wenkai Ren Yanggang Yuan Chunyan Jiang Song Ning Xiaoxue Ye Ming Zeng Hanyang Qian Anning Bian Fan Li Guang Yang Shaowen Tang Zhihong Zhang Juncheng Dai Jing Guo Qiang Wang Bin Sun Yifei Ge Chun Ouyang Xueqiang Xu Jing Wang Yaoyu Huang Hongqing Cui Jing Zhou Meilian Wang Zhonglan Su Yan Lu Di Wu Jingping Shi Wei Liu Li Dong Yinbing Pan Baiqiao Zhao Ying Cui Xueyan Gao Zhanhui Gao Xiang Ma Aiqin Chen Jie Wang Meng Cao Qian Cui Li Chen Feng Chen Youjia Yu Qiang Ji Zhiwei Zhang Mufeng Gu Xiaojun Zhuang Xiaolin Lv Hui Wang Yanyan Pan Ling Wang Xianrong Xu Jing Zhao Xiuqin Wang Cuiping Liu Ningxia Liang Changying Xing Jiayin Liu Ningning Wang | 2022 | Journal of Molecular Cell Biology2022,14,2: | 1 |
| 18 | Positronium Annihilation in Oxygen and Nitrogen Mixture显示文摘Formed in silica aerogels, positronium annihilation in oxygen and nitrogen mixture is studied by a simple and convenient method. The results show that ortho-positronium (o-Ps) lifetime is significantly shortened when some oxygen is introduced into nitrogen gas and that the o-Ps collisional quenching rate for an oxy-gen molecule is (28.0±0.4) μs-1·amagat-1 (1 amagat = 2.69×1025m-3). It is found that the o-Ps annihilation rate in oxygen of 1atm at room temperature is (25.5±0.5) μs-1 and that the effective number of electrons per oxygen molecule available for 2γ annihilation of positron in the o-Ps is (34.6±0.4). | WANG Juncheng HE Chunqing DAI Yiqun WANG Shaojie | 2013 | Wuhan University Journal of Natural Sciences2013,18,2: | 0 |
| 19 | A causal variant rs3769823 in 2q33.1 involved in apoptosis pathway leading to a decreased risk of non-small cell lung cancer显示文摘Objective:Although our previous genome-wide association study(GWAS)has identified chromosome 2q33.1 as a susceptibility locus for non-small cell lung cancer(NSCLC),the causal variants remain unclear.The aims of this study were to identify the causal variants in 2q33.1 and to explore their biological functions in NSCLC.Methods:CCK-8,colony formation,EdU incorporation,Transwell,and quantitative real-time polymerase chain reaction assays were applied to examine variant function.The tumor xenograft model was used to examine variant function in vivo.Caspase-8 activity assays,flow cytometry analysis,and co-immunoprecipitation assays were used to explore the molecular mechanism.Results:The missense variant rs3769823(A>G),which caused the substitution of lysine with arginine at amino acid 14 in caspase-8(caspase-8K14R),was identified as a potential causal candidate in 2q33.1.Compared with the wild type caspase-8(caspase8WT)group,the caspase-8K14R group had higher expression of caspase-8 and cleaved caspase-8.Caspase-8K14R inhibited the proliferation and metastasis of human lung cancer cell lines in vitro.Moreover,caspase-8K14R repressed lung cancer cell growth in vivo.Mechanistically,caspase-8K14R was more sensitive than caspase-8WT to tumor necrosis factor-related apoptosis-inducing ligand(TRAIL)-mediated apoptosis and showed higher binding of caspase-8 and FADD.Conclusions:These results suggested that rs3769823 is the causal variant in chromosome 2q33.1 and is involved in an apoptosis pathway,leading to a decreased risk of NSCLC. | Xu Zhang Na Qin Jingyi Fan Chang Zhang Qi Sun Yayun Gu Meng Zhu Erbao Zhang Juncheng Dai Guangfu Jin Hongxia Ma Zhibin Hu Hongbing Shen | 2022 | Cancer Biology & Medicine2022,19,9: | 0 |