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Development of a novel rat model of heterogeneous hepatic injury by injection with colchicine via the splenic vein

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World Journal of Gastroenterology 2018年第44期24卷 5005-5012页

作者： Yan-Yan zhang chao-xu zhang Yu Li xuan Jiang Yong-Fang Wang Yang Sun Jun Wang Wan-Ying Ji Yi Liu Medical Imaging Center The Affiliated Hospital of Liaoning Traditional Chinese Medical University Department of Radiology The First Hospital of China Medical University Department of Medical Oncology The First Hospital of China Medical University Department of Cardiac Surgery The First Hospital of China Medical University

AIM To develop a novel rat model of heterogeneous hepatic *** Seventy male Sprague-Dawley rats were randomly divided into a control group(n = 10) and a colchicine group(n =60). A 0.25% colchicine solution(0.4 mL/kg) was injected via the splenic vein in the colchicine group to develop a rat model of heterogeneous hepatic injury. An equal volume of normal saline was injected via the splenic vein in the control group. At days 3, 7, and 14 and weeks 4, 8, and 12 after the operation, at least seven rats of the colchicine group were selected randomly for magnetic resonance imaging(MRI) examinations, and then they were euthanized. Ten rats of the control group underwent MRI examinations at the same time points, and then were euthanized at week 12. T2-weighted images(T2 WI) and diffusion weighted imaging(DWI) were used to evaluate the heterogeneous hepatic injury. The heterogeneous injury between the left and right hepatic lobes was assessed on liver sections according to the histological scoring criteria, and correlated with the results of MRI study. RESULTS Obvious pathological changes occurred in the hepatic parenchyma in the colchicine group. Hepatic injury scores were significantly different between the left and right lobes at each time point(P < 0.05). There was a significant difference in apparent diffusion coefficient(ADC) of DWI and liver-to-muscle ratio(LMR) of T2 WI between the left and right lobes of rats in the colchicine group(P < 0.05) at each time point, and similar results were observed between the colchicine and control groups. Besides, there was a significant correlation between hepatic injury scores and ADC values or LMR(r =-0.682, P = 0.000; r =-0.245, P = 0.018).CONCLUSION Injection with colchicine via the splenic vein can be used to successfully develop a rat model of heterogeneous hepatic injury. DWI and T2 WI may help evaluate the heterogeneous injury among liver lobes.

关键词： Heterogeneous hepatic injury Rat model Colchicine T2-weighted images Diffusion weighted imaging

The spatiotemporal evolution of EGFR C797S mutation in EGFR-mutant non-small cell lung cancer:opportunities for third-generation EGFR inhibitors re-challenge

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Science Bulletin 2019年第8期64卷 499-503页

作者： Yi-Chen zhang Qing Zhou Zhi-Hong Chen Ming-Feng zhang Jin-Ji Yang Hai-Yan Tu xu-chao zhang Chong-Rui xu Hong-Hong Yan Xiao-Xiao Peng Xiao-Yan Bai Shao-Kun Chuai Jun-Yi Ye Yi-Long Wu The Second School of Clinical Medicine Southern Medical University Guangdong Lung Cancer Institute Guangdong Provincial People's Hospital and Guangdong Academy of Medical Sciences Burning Rock Biotech

Third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) have demonstrated impressive activity in EGFR T790M-positive non-small cell lung cancer (NSCLC) progressed from prior EGFR-TKI... 详细信息

关键词： cis The spatiotemporal evolution of EGFR C797S mutation in EGFR-mutant non-small cell lung cancer:opportunities for third-generation EGFR inhibitors re-challenge

Influence of clinical characteristics and tumor size on symptoms of bladder leiomyoma： a pooled analysis of 61 cases

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Chinese Medical Journal 2012年第14期125卷 2436-2439页

作者： JIANG Xian-zhou xu chao zhang Nian-zhao xu Zhi-shun Department of Urology Qilu Hospital Shandong UniversityJinan Shandong 250012 China

Background Bladder leiomyoma is an uncommon type of bladder neoplasms. Most publications are reports of isolated cases. The influence of tumor size on patients＇ early symptoms was seldom analyzed. We aim to investigate the clinical characteristics of bladder leiomyoma and the influence of tumor size on patients＇ symptoms in Chinese population. Methods We reviewed the medical records of eight patients diagnosed with bladder leiomyoma at our department, collected 53 cases from Chinese National Knowledge Infrastructure （CNKI）, Wangfang data base, and Chinese Biological Medicine Disk, and performed a pooled analysis. The clinical characteristics of the patients were analyzed and then classified into symptomatic and asymptomatic groups. The association between tumor size and the occurrence of symptoms was evaluated. Furthermore, Logistic regression model was constructed to discriminate variables. Results Women comprised the majority of the patients （49/61, 80.3%）. The mean age and tumor size were （42.3＋14.0） years and （45.0＋25.7） mm, respectively. Among all the symptoms, irritative symptoms occurred most frequently （37.7%, 23/61）, followed by obstructive urinary symptoms （31.1%, 19/61）, hematuria （24.6%, 15/61 ）, and abdominal bulge or pain （14.8%, 9/61）. In our study, patients who were 45 years old or younger tended to be asymptomatic compared with elder ones （14/36 vs. 3/25, P=-0.021）. The histological, as well as anatomical, location of tumor, did not show significant differences between symptomatic and asymptomatic patients （P=-0.306 and 0.700）. Tumors larger than 30 mm in the greatest diameter would cause clinical symptoms such as obstructive urinary symptoms （P=0.048） and irritative symptoms （P=0.037）. Logistic regression confirmed the association between tumor size and the occurrence of symptoms, which was related with age. Conclusions Bladder leiomyoma occurs mainly in women and most frequently with irritative symptoms. The occurrence of symptoms is related to tu

关键词： bladder neoplasm leiomyoma tumor size, symptoms, pooled analysis

From waste to wealth:Coal tar residue derived carbon materials as low-cost anodes for potassium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 464-475页

作者： Zhonghua Lu Jun Shen Xin zhang Lingcong chao Liang Chen Ding zhang Tao Wei Shoudong xu College of Chemical Engineering and Technology Taiyuan University of TechnologyTaiyuan 030024China College of Chemistry Taiyuan University of TechnologyTaiyuan 030024China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430205China School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China

Carbon materials are widely recognized as highly promising electrode materials for various energy storage system *** tar residues(CTR),as a type of carbon-rich solid waste with high value-added utilization,are crucially important for the development of a more sustainable *** this study,we employed a straightforward direct carbonization method within the temperature range of 700-1000℃to convert the worthless solid waste CTR into economically valuable carbon materials as anodes for potassium-ion batteries(PIBs).The effect of carbonization temperature on the microstructure and the potassium ions storage properties of CTR-derived carbons(CTRCs)were systematically explored by structural and morphological characterization,alongside electrochemical performances *** on the co-regulation between the turbine layers,crystal structure,pore structure,functional groups,and electrical conductivity of CTR-derived carbon carbonized at 900℃(CTRC-900H),the electrode material with high reversible capacity of 265.6m Ah·g^(-1)at 50 m A·g^(-1),a desirable cycling stability with 93.8%capacity retention even after 100 cycles,and the remarkable rate performance for PIBs were ***,cyclic voltammetry(CV)at different scan rates and galvanostatic intermittent titration technique(GITT)have been employed to explore the potassium ions storage mechanism and electrochemical kinetics of *** indicate that the electrode behavior is predominantly governed by surface-induced capacitive processes,particularly under high current densities,with the potassium storage mechanism characterized by an“adsorption-weak intercalation”*** work highlights the potential of CTR-based carbon as a promising electrode material category suitable for high-performance PIBs electrodes,while also provides valuable insights into the new avenues for the high value-added utilization of CTR.

关键词： coal tar residue carbon materials anode potassium-ion batteries high value-added

Establishment of a Novel Method for Screening Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor Resistance Mutations in Lung Cancer

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Chinese Medical Journal 2017年第12期130卷 1446-1453页

作者： Hong-Xia Tian xu-chao zhang Zhen Wang Jin-Ji Yang Wei-Bang Guo Zhi-Hong Chen Yi-Long Wu Medical Research Center Guangdong Lung Cancer Institute Guangdong General Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong 510080 China Division of Pulmonary Oncology Guangdong Lung Cancer Institute Guangdong General Hospital Guangdong Academy of Medical Sciences Guangzhou Guangdong 510080 China

Background： Drug resistance to targeted therapies occurs in lung cancer, and resistance mechanisms related to epidermal growth factor receptor （EGFR） tyrosine kinase inhibitors （TKIs） are continuously being discovered. We aimed to establish a novel method for highly parallel multiplexed detection of genetic mutations related to EGFR TKl-resistant lung cancer using Agena iPLEX chemistry and niatrix-assisted laser desorption ionization time-of-flight analysis on the MassARRAY mass spectrometry platform. Methods： A review of the literature revealed 60 mutation hotspots in seven target genes （EGFR, KRAS, PIK3CA, BRAF, ERBB2, NRAS, and BIM） that are closely related to EGFR TKI resistance to lung cancer. A total of 183 primers comprised 61 paired forward and reverse amplification primers, and 61 matched extension primers were designed using Assay Design Software. The detection method was established by analyzing nine cell lines, and by comparison with LungCartaTM kit in ten lung cancer specimens. EGFR, KRAS. and BIM genes in all cell lines and clinical samples were subjected to Sanger sequencing for confirming reproducibility. Results： Our data showed that designed panel was a high-throughput and robust tool, allowing genotyping for sixty hotspots in the same run. Moreover, it made efficient use of patient diagnostic samples for a more accurate EGFR TKIs resistance analysis. The proposed method could accurately detect mutations in lung cancer cell lines and clinical specimens, consistent with those obtained by the LungCartaTM kit and Sanger sequencing. We also established a method for detection of large-fragment deletions based on single-base extension technology of MassARRAY platform. Conclusions： We established an effective method for high-throughput detection of genetic mutations related to EGFR TKI resistance based on the MassARRAY platform, which could provide more accurate information for overcoming cancers with de novo or acquired resistance to EGFR-targeted therap

关键词： Drug Resistance Epidermal Growth Factor Receptor Lung Cancer MassARRAY Targeted Molecular Therapy

Different dissecting orders of the pulmonary bronchus and vessels during right upper lobectomy are associated with surgical feasibility and postoperative recovery for lung cancer patients

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Chinese Journal of Cancer 2017年第10期36卷 468-477页

作者： Hao-Ran Zhai xue-Ning Yang Qiang Nie Ri-Qiang Liao Song Dong Wei Li Ben-Yuan Jiang Jin-Ji Yang Qing Zhou Hai-Yan Tu xu-chao zhang Yi-Long Wu Wen-Zhao Zhong Graduate School Southern Medical University Guangdong Lung Cancer Institute Guangdong General Hospital&Guangdong Academy of Medical Sciences

Background: Right upper lobectomy(RUL) for lung cancer with di erent dissecting orders involves the most vari?able anatomical structures, but no studies have analyzed its e ects on postoperative recovery. This study compared the conventional surgical approach, VAB(dissecting pulmonary vessels first, followed by the bronchus), and the alter?native surgical approach, a BVA(dissecting the posterior ascending arterial branch first, followed by the bronchus and vessels) on improving surgical feasibility and postoperative recovery for lung cancer ***: According to the surgical approach, consecutive lung cancer patients undergoing RUL were grouped into a BVA and VAB cohorts. Their clinical, pathologic, and perioperative characteristics were collected to compare periop?erative ***: Three hundred one patients were selected(109 in the a BVA cohort and 192 in the VAB cohort). The mean operation time was shorter in the a BVA cohort than in the VAB cohort(164 vs. 221 min, P 0.05). The median disease?free survival was comparable for all patients in the two cohorts(not arrived vs. 41.97 months) and for patients with disease recurrences(13.25 vs. 9.44 months)(both P > 0.05). The recurrence models in two cohorts were also comparable for patients with local recurrences(6.4% vs. 7.8%), distant metastases(10.1% vs. 8.3%), and both(1.8% vs. 1.6%)(all P > 0.05).Conclusions: Dissecting the right upper bronchus before turning over the lobe repeatedly and dissecting veins via the a BVA approach during

关键词： Lung cancer Dissecting order Video-assisted thoracic surgery Pulmonary veins Bronchus

Establishment and application of a multiplex genetic mutation-detection method of lung cancer based on MassARRAY platform

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Cancer Biology & Medicine 2016年第1期13卷 68-76页

作者： Hong-Xia Tian xu-chao zhang Zhen Wang Jian-Guang Chen Shi-Liang Chen Wei-Bang Guo Yi-Long Wu Medical Research Center Guangdong Lung Cancer Institute Guangdong General Hospital Guangdong Academy of Medical Sciences

Objective: This study aims to establish a method for highly parallel multiplexed detection of genetic mutations in Chinese lung cancer samples through Agena i PLEX chemistry and matrix-assisted laser desorption ionization time-of-flight analysis on Mass ARRAY mass spectrometry ***: We reviewed the related literature and data on lung cancer treatments. We also identified 99 mutation hot spots in 13 target genes closely related to the pathogenesis, drug resistance, and metastasis of lung cancer. A total of 297 primers, composed of99 paired forward and reverse amplification primers and 99 matched extension primers, were designed using Assay Design software. The detection method was established by analyzing eight cell lines and six lung cancer specimens. The proposed method was then validated through comparisons by using a Lung Carta^(TM) kit. The sensitivity and specificity of the proposed method were evaluated by directly sequencing EGFR and KRAS genes in 100 lung cancer ***: The proposed method was able to detect multiplex genetic mutations in lung cancer cell lines. This finding was consistent with the observations on previously reported mutations. The proposed method can also detect such mutations in clinical lung cancer specimens. This result was consistent with the observations with Lung Carta^(TM) kit. However, an FGFR2 mutation was detected only through the proposed method. The measured sensitivity and specificity were 100% and 96.3%, ***: The proposed Mass ARRAY technology-based multiplex method can detect genetic mutations in Chinese lung cancer patients. Therefore, the proposed method can be applied to detect mutations in other cancer tissues.

关键词： Lung neoplasms driver genes mutation multigene testing MassARRAY

Single nucleotide polymorphisms of MAGE-A3 gene and its clinical implications in Chinese patients with non-small cell lung cancer(NSCLC)

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Chinese Journal of Cancer Research 2015年第3期27卷 301-308页

作者： xue-Ning Yang Ling Huang Yu Chen She-Juan An xu-chao zhang Ri-Qiang Liao Jian Su Yi-Long Wu Guangdong Lung Cancer Institute Guangdong Provincial Key Laboratory of Translational Medicine in Lung CancerGuangdong General Hospital& Guangdong Academy of Medical Sciences

Background： Available study revealed advanced tumors have a higher expression rate of MAGE-A3 gene which has a lot of single nucleotide polymorphism（SNP） loci with polymorphisms. This study aimed to analyze the allele frequency of SNP loci in MAGE-A3 gene and investigate the relationship between MAGE-A3 gene polymorphisms and clinical ***： Tumor samples of a cohort of 191 NSCLC patients were collected. EGFR m RNA expression were detected by q RT-PCR. SNPs in whole length of MAGE-A3 gene were detected by direct sequencing. Frequencies of the SNPs were correlated to gene expression, mutation status of EGFR and clinical ***： Sequencing analysis confirmed that allele frequencies of genotypes on SNP loci rs5970360, rs5925210, rs5970361, rs5925211 and rs35123853 were CC（0.681）/CT（0.319）, CC（0.660）/CG（0.340）, CC（0.681）/CA（0.319）, AA（0.984）/AT（0.016） and GG（1.000）/GA（0.000）, respectively, which were different from the frequencies and genotypes of MAGE-A3 in SNP database. Chi-square tests showed the EGFR mR NA expression level had significant correlation with the genotypes of SNP loci rs5970360 and rs5925210. But all frequencies of each MAGE-A3 SNPs were not found significantly different between EGFR mutant and wild type patients. MAGE-A3 gene polymorphisms had no significant effects on survival of NSCLC ***： Chinese patients with NSCLC had different SNP patterns of MAGE-A3 in comparison with those in international SNP database. These MAGE-A3 SNP loci might have not prognostic significance. MAGE-A3 SNP loci rs5970360 and rs5925210 might be predictive for EGFR m RNA expression levels and helpful to the selection of patients for epidermal growth factor receptor（EGFR） targeted immunotherapy.

关键词： MAGE-A3 epidermal growth factor receptor (EGFR) non-small cell lung cancer (NSCLC) single nucleotide polymorphism (SNP)

SYK-mediated epithelial cell state is associated with response to c-Met inhibitors in c-Met-overexpressing lung cancer

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Signal Transduction and Targeted Therapy 2023年第6期8卷 3098-3110页

作者： Ji Zhou xu-chao zhang Shan xue Mengdi Dai Yueliang Wang Xia Peng Jianjiao Chen Xinyi Wang Yanyan Shen Hui Qin Bi Chen Yu Zheng Xiwen Gao Zuoquan Xie Jian Ding Handong Jiang Yi-Long Wu Meiyu Geng Jing Ai Division of Antitumor Pharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of SciencesShanghai201203China University of Chinese Academy of Sciences No.19A Yuquan RoadBeijing100049China Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer Guangdong Lung Cancer InstituteGuangdong Provincial People’s Hospitaland Guangdong Academy of Medical SciencesSchool of MedicineSouth China University of TechnologyGuangzhou510080China Department of Respiratory Medicine Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai200127China Department of Neurobiology Brain InstituteUniversity of PittsburghPittsburgh15213USA Department of Respiratory Medicine Affiliated Hospital of Xuzhou Medical UniversityXuzhou221000China Department of Respiratory Medicine Minhang HospitalFudan UniversityShanghai201199China School of Pharmaceutical Science and Technology Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou310024P.R.China

Genomic MET amplification and exon 14 skipping are currently clinically recognized biomarkers for stratifying subsets of non-small cell lung cancer(NSCLC)patients according to the predicted response to c-Met inhibitors(c-Metis),yet the overall clinical benefit of this strategy is quite ***,c-Met protein overexpression,which occurs in approximately 20–25%of NSCLC patients,has not yet been clearly defined as a clinically useful *** optimized strategy for accurately classifying patients with c-Met overexpression for decision-making regarding c-Meti treatment is ***,we found that SYK regulates the plasticity of cells in an epithelial state and is associated with their sensitivity to c-Metis both in vitro and in vivo in PDX models with c-Met overexpression regardless of MET gene ***,TGF-β1 treatment resulted in SYK transcriptional downregulation,increased Sp1-mediated transcription of FRA1,and restored the mesenchymal state,which conferred resistance to ***,a subpopulation of NSCLC patients with c-Met overexpression coupled with SYK overexpression exhibited a high response rate of 73.3%and longer progression-free survival with c-Meti treatment than other *** negativity coupled with TGF-β1 positivity conferred de novo and acquired *** summary,SYK regulates cell plasticity toward a therapy-sensitive epithelial cell ***,our findings showed that SYK overexpression can aid in precisely stratifying NSCLC patients with c-Met overexpression regardless of MET alterations and expand the population predicted to benefit from c-Met-targeted therapy.

关键词： SYK alterations state