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Xu WL, Tang WJ, Yang WY, Sun LC, Zhang ZQ, Li W, Zang XX. Multiorgan dysfunction syndrome due to high-dose cantharidin poisoning: A case report. World J Clin Cases 2024; 12:2074-2078. [DOI: 10.12998/wjcc.v12.i12.2074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/07/2024] [Accepted: 03/28/2024] [Indexed: 04/16/2024] Open
Abstract
BACKGROUND This report delves into the diagnostic and therapeutic journey undertaken by a patient with high-dose cantharidin poisoning and multiorgan dysfunction syndrome (MODS). Particular emphasis is placed on the comprehensive elucidation of the clinical manifestations of high-dose cantharidin poisoning, the intricate path to diagnosis, and the exploration of potential underlying mechanisms.
CASE SUMMARY A patient taking 10 g of cantharidin powder orally subsequently developed MODS. The patient was treated with supportive care, fluid hydration and antibiotics, and hemoperfusion and hemofiltration therapy for 24 h and successfully recovered 8 d after hospital admission. Cantharidin poisoning can cause life-threatening MODS and is rare clinically. This case underscores the challenge in diagnosis and highlights the need for early clinical differentiation to facilitate accurate assessment and prompt intervention.
CONCLUSION This article has reported and analyzed the clinical data, diagnosis, treatment, and prognosis of a case of high-dose cantharidin poisoning resulting in MODS and reviewed the relevant literature to improve the clinical understanding of this rare condition.
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Affiliation(s)
- Wan-Ling Xu
- Department of Emergency Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Wen-Jing Tang
- Department of Emergency Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Wei-Ying Yang
- Department of Emergency Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Li-Chao Sun
- Department of Emergency Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Ze-Qun Zhang
- Department of Chinese Traditional Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Wei Li
- Department of Emergency Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Xiu-Xian Zang
- Department of Emergency Medicine, First Hospital of Jilin University, Changchun 130021, Jilin Province, China
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Yang HB, Gan ZG, Li YJ, Liu ML, Xu SY, Liu C, Zhang MM, Zhang ZY, Huang MH, Yuan CX, Wang SY, Ma L, Wang JG, Han XC, Rohilla A, Zuo SQ, Xiao X, Zhang XB, Zhu L, Yue ZF, Tian YL, Wang YS, Yang CL, Zhao Z, Huang XY, Li ZC, Sun LC, Wang JY, Yang HR, Lu ZW, Yang WQ, Zhou XH, Huang WX, Wang N, Zhou SG, Ren ZZ, Xu HS. Discovery of New Isotopes ^{160}Os and ^{156}W: Revealing Enhanced Stability of the N=82 Shell Closure on the Neutron-Deficient Side. Phys Rev Lett 2024; 132:072502. [PMID: 38427897 DOI: 10.1103/physrevlett.132.072502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/12/2023] [Accepted: 01/19/2024] [Indexed: 03/03/2024]
Abstract
Using the fusion-evaporation reaction ^{106}Cd(^{58}Ni,4n)^{160}Os and the gas-filled recoil separator SHANS, two new isotopes _{76}^{160}Os and _{74}^{156}W have been identified. The α decay of ^{160}Os, measured with an α-particle energy of 7080(26) keV and a half-life of 201_{-37}^{+58} μs, is assigned to originate from the ground state. The daughter nucleus ^{156}W is a β^{+} emitter with a half-life of 291_{-61}^{+86} ms. The newly measured α-decay data allow us to derive α-decay reduced widths (δ^{2}) for the N=84 isotones up to osmium (Z=76), which are found to decrease with increasing atomic number above Z=68. The reduction of δ^{2} is interpreted as evidence for the strengthening of the N=82 shell closure toward the proton drip line, supported by the increase of the neutron-shell gaps predicted in theoretical models.
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Affiliation(s)
- H B Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z G Gan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - Y J Li
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - M L Liu
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - S Y Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - C Liu
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - M M Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z Y Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - M H Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - C X Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - S Y Wang
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - L Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J G Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X C Han
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - A Rohilla
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - S Q Zuo
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - X Xiao
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - X B Zhang
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - L Zhu
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Z F Yue
- School of Space Science and Physics, Shandong University, Weihai 264209, China
| | - Y L Tian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - Y S Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - C L Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - X Y Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z C Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - L C Sun
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - J Y Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - H R Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Z W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Q Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X H Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - W X Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
| | - N Wang
- Guangxi Key Laboratory of Nuclear Physics and Technology, Guangxi Normal University, Guilin 541004, China
| | - S G Zhou
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Z Z Ren
- School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
| | - H S Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- Advanced Energy Science and Technology Guangdong Laboratory, Huizhou 516007, China
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Zhao CL, Sun LC, Zhang JB, Sun YY. [CIC-rearranged sarcoma: a clinicopathological analysis of six cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1025-1027. [PMID: 37805394 DOI: 10.3760/cma.j.cn112151-20230306-00175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Affiliation(s)
- C L Zhao
- Department of Pathology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - L C Sun
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - J B Zhang
- Department of Pathology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Y Y Sun
- Department of Pathology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
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Liu HQ, Sun LX, Yu L, Liu J, Sun LC, Yang ZH, Shu X, Ran YL. HSP90, as a functional target antigen of a mAb 11C9, promotes stemness and tumor progression in hepatocellular carcinoma. Stem Cell Res Ther 2023; 14:273. [PMID: 37759328 PMCID: PMC10523703 DOI: 10.1186/s13287-023-03453-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/16/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Identification of promising targeted antigens that exhibited cancer-specific expression is a crucial step in the development of novel antibody-targeted therapies. We here aimed to investigate the anti-tumor activity of a novel monoclonal antibody (mAb) 11C9 and identify the antibody tractable target in the hepatocellular cancer stem cells (HCSCs). METHODS The identification of the targeted antigen was conducted using SDS-PAGE, western blot, mass spectrometry, and co-immunoprecipitation. Silence of HSP90 was induced by siRNA interference. Positive cells were sorted by fluorescence-activated cell sorting. Double-immunofluorescent (IF) staining and two-color flow cytometry detected the co-expression. Self-renewal, invasion, and drug resistance were assessed by sphere formation, matrigel-coated Transwell assay, and CCK-8 assay, respectively. Tumorigenicity was evaluated in mouse xenograft models. RNA-seq and bioinformatics analysis were performed to explore the mechanism of mAb 11C9 and potential targets. RESULTS MAb 11C9 inhibited invasion and self-renewal abilities of HCC cell lines and reversed the cisplatin resistance. HSP90 (~ 95 kDa) was identified as a targeted antigen of mAb 11C9. Tissue microarrays and online databases revealed that HSP90 was overexpressed in HCC and associated with a poor prognosis. FACS and double-IF staining showed the co-expression of HSP90 and CSCs markers (CD90 and ESA). In vitro and in vivo demonstrated the tumorigenic potentials of HSP90. The inhibition of HSP90 by siRNA interference or 17-AAG inhibitor both decreased the number of invasion, sphere cells, and CD90+ or ESA+ cells, as well as reversed the resistance. Bioinformatics analysis and western blot verified that HSP90 activated Wnt/β-catenin signaling. CONCLUSIONS The study preliminarily revealed the anti-tumor activity of mAb 11C9. More importantly, we identified HSP90 as a targeted antigen of mAb 11C9, which functions as an oncogene in phenotype shaping, stemness maintenance, and therapeutic resistance by activating Wnt/β-catenin signaling.
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Affiliation(s)
- Hui-Qi Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
| | - Jun Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
| | - Zhi-Hua Yang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
| | - Xiong Shu
- National Center for Orthopaedics, Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Capital Medical University, No. 31 Xinjiekou E Road, Xicheng, Beijing, 100035 People’s Republic of China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 17 Panjiayuan Subdistrict, Chaoyang, Beijing, 100021 People’s Republic of China
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Shu X, Chen M, Liu SY, Yu L, Sun LX, Sun LC, Ran YL. Palladin promotes cancer stem cell-like properties in lung cancer by activating Wnt/Β-Catenin signaling. Cancer Med 2023; 12:4510-4520. [PMID: 36047666 PMCID: PMC9972019 DOI: 10.1002/cam4.5192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) are responsible for drug resistance, cancer relapse, and metastasis. Here, we report the first analysis of Palladin expression and its impacts on stem cell-like properties in lung cancer. METHODS Tissue microarrays were used to investigate Palladin expression and its association with prognosis. Immunofluorescence (IF), flow fluorescence assay, and Western blot were performed to detect Palladin expression in 6 NSCLC cell lines. Cell phenotypes and drug resistance were evaluated. Xenograft models were constructed to confirm the role of Palladin in vivo. RESULTS By using the tissue microarrays, Palladin was identified to be highly expressed in the cytoplasm, specifically in the cytomembrane of NSCLC, and its high expression is associated with poor prognosis. Palladin is widely expressed and enriched in the sphere cells. The in vitro and in vivo studies showed that Palladin promoted stem cell-like properties, including cell viability, invasion, migration, self-renewal abilities, taxol resistance, and tumorigenicity. Western blot revealed that Palladin promoted the accumulation of β-catenin and activated Wnt/β-catenin signaling. Tissue microarrays analysis further confirmed the positive correlation between Palladin and β-catenin. Wnt/β-catenin pathway inhibitor blocked the Palladin-induced enhancement of sphere-forming. CONCLUSIONS Palladin might act as an oncogene by promoting CSCs-like properties and tumorigenicity of NSCLC cells via the Wnt/β-catenin signaling pathway. Besides, Palladin was identified to have the potential as a cell surface marker for LCSCs identification. These findings provide a possible target for developing putative agents targeted to LCSCs.
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Affiliation(s)
- Xiong Shu
- Laboratory of Molecular Orthopaedics, Beijing Research Institute of Orthopaedics and Traumatology, Beijing JiShuiTan Hospital, Beijing, P. R. China
| | - Meng Chen
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Shi-Ya Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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Ma ZH, Wang XM, Wu RH, Hao DL, Sun LC, Li P, Niu JQ. Serum metabolic profiling of targeted bile acids reveals potentially novel biomarkers for primary biliary cholangitis and autoimmune hepatitis. World J Gastroenterol 2022; 28:5764-5783. [PMID: 36338890 PMCID: PMC9627419 DOI: 10.3748/wjg.v28.i39.5764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/07/2022] [Accepted: 09/23/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Primary biliary cholangitis (PBC) and autoimmune hepatitis (AIH) are two unexplained immune diseases. The golden standard for diagnosis of these diseases requires a liver biopsy. Liver biopsy is not widely accepted by patients because of its invasive nature, and atypical liver histology can confuse diagnosis. In view of the lack of effective diagnostic markers for PBC and AIH, combined with the increasingly mature metabolomics technologies, including full-contour metabolomics and target.
AIM To determine non-invasive, reliable, and sensitive biochemical markers for the differential diagnosis of PBC and AIH.
METHODS Serum samples from 54 patients with PBC, 26 patients with AIH and 30 healthy controls were analyzed by Ultra-high performance liquid chromatography-tandem mass spectrometry serum metabolomics. The metabolites and metabolic pathways were identified, and the metabolic changes, metabolic pathways and inter-group differences between PBC and AIH were analyzed. Fifteen kinds of target metabolites of bile acids (BAs) were quantitatively analyzed by SRM, and the differential metabolites related to the diagnosis of PBC were screened by receiver operating characteristic curve analysis.
RESULTS We found the changes in the levels of amino acids, BAs, organic acids, phospholipids, choline, sugar, and sugar alcohols in patients with PBC and AIH. Furthermore, the SRM assay of BAs revealed the increased levels of chenodeoxycholic acid, lithocholic acid (LCA), taurolithocholic acid (TLCA), and LCA + TLCA in the PBC group compared with those in the AIH group. The levels of BAs may be used as biomarkers to differentiate PBC from AIH diseases. The levels of glycochenodeoxycholic acid, glycochenodeoxycholic sulfate, and taurodeoxycholic acid were gradually elevated with the increase of Child-Pugh class, which was correlated with the severity of disease.
CONCLUSION The results demonstrated that the levels of BAs could serve as potential biomarkers for the early diagnosis and assessment of the severity of PBC and AIH.
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Affiliation(s)
- Zhen-Hua Ma
- Department of Infection and Hepatology, The Affiliated Hospital of Beihua University, Jilin 132011, Jilin Province, China
| | - Xiao-Mei Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130061, Jilin Province, China
| | - Rui-Hong Wu
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130061, Jilin Province, China
| | - Da-Lin Hao
- Department of Infection and Hepatology, The Affiliated Hospital of Beihua University, Jilin 132011, Jilin Province, China
| | - Li-Chao Sun
- Department of Infection and Hepatology, The Affiliated Hospital of Beihua University, Jilin 132011, Jilin Province, China
| | - Pan Li
- Department of Pathology, The Affiliated Hospital of Beihua University, Jilin 132011, Jilin Province, China
| | - Jun-Qi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130061, Jilin Province, China
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Shen MJ, Yan ST, Zhang XY, Li W, Chen X, Zheng XX, Zhang GQ, Sun LC. The circular RNA hsa_circ_0003091 regulates sepsis-induced lung injury by sponging the miR-149/Smad2 axis. Aging (Albany NY) 2022; 14:5059-5074. [PMID: 35700140 PMCID: PMC9271288 DOI: 10.18632/aging.204125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 05/30/2022] [Indexed: 12/02/2022]
Abstract
Sepsis-induced acute lung injury (ALI) is a severe cause of death. Increasing evidence has identified circular RNAs (circRNAs) acting as critical regulators of human diseases. However, their expression pattern and underlying mechanisms in ALI remain unclear. Herein, we screened the circRNAs of ALI patients and constructed a lung injury murine model using lipopolysaccharides (LPS) induction. Functional analyses of targeted circRNA were performed in vivo and in vitro. Then, the downstream miRNA and mRNA of specific circRNAs were identified. Compared to healthy subjects, 35 circRNAs were upregulated and 9 circRNAs were downregulated in sepsis patients. The top 10 differentially expressed circRNAs were selected for validation and has_circ_0003091 was selected. The ALI mice presented significantly elevated has_circ_0003091 (mmu_circ_0015268). The functional analysis revealed that mmu_circ_0015268 contributed to the pulmonary injury, cell apoptosis, inflammatory responses, and endothelial activation in the ALI murine model. On the other hand, silencing mmu_circ_0015268 showed protective effects in LPS-treated mice and PMVECs. Furthermore, mmu_circ_0015268 sponged miR-149 to upregulate the expression of its target Smad2. In summary, we demonstrated that has_circ_0003091 might be a novel target for the management and treatment of sepsis-induced ALI.
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Affiliation(s)
- Mei-Jia Shen
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China.,Emergency Department, China-Japan Friendship Hospital, Beijing 100029, China
| | - Shen-Tao Yan
- Emergency Department, China-Japan Friendship Hospital, Beijing 100029, China
| | - Xiao-Yan Zhang
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wen Li
- Surgical Intensive Care Unit (SICU), China-Japan Friendship Hospital, Beijing 100029, China
| | - Xu Chen
- Department of Digestive, Beijing Ditan Hospital Capital Medical University, Beijing 100015, China
| | - Xiao-Xiao Zheng
- Department of Emergency, Peking University People's Hospital (PKUPH), Beijing 100044, China
| | - Guo-Qiang Zhang
- Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100193, China.,Emergency Department, China-Japan Friendship Hospital, Beijing 100029, China
| | - Li-Chao Sun
- Emergency Department, China-Japan Friendship Hospital, Beijing 100029, China
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Shu X, Zhan PP, Sun LX, Yu L, Liu J, Sun LC, Yang ZH, Ran YL, Sun YM. BCAT1 Activates PI3K/AKT/mTOR Pathway and Contributes to the Angiogenesis and Tumorigenicity of Gastric Cancer. Front Cell Dev Biol 2021; 9:659260. [PMID: 34164393 PMCID: PMC8215359 DOI: 10.3389/fcell.2021.659260] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/03/2021] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Focusing on antiangiogenesis may provide promising choices for treatment of gastric cancer (GC). This study aimed to investigate the mechanistic role of BCAT1 in the pathogenesis of GC, particularly in angiogenesis. METHODS Bioinformatics and clinical samples analysis were used to investigate the expression and potential mechanism of BCAT1 in GC. BGC823 cells with BCAT1 overexpression or silencing were induced by lentiviral transduction. Cell phenotypes and angiogenesis were evaluated. The relevant proteins were quantized by Western blotting, immunohistochemistry, or immunofluorescence. Xenograft models were constructed to confirm the role of BCAT1 in vivo. RESULTS BCAT1 was overexpressed in GC patients and associated with lower survival. BCAT1 expression was correlated with proliferation-, invasion-, or angiogenesis-related markers expression and pathways. Silencing BCAT1 expression suppressed cell viability, colony formation, cycle progression, invasion, and angiogenesis of BGC823 cells, as well as the tumor growth of xenograft models, whereas overexpressing BCAT1 had the opposite results both in vitro and in vivo. Bioinformatics analysis and Western blotting demonstrated that BCAT1 activated the PI3K/AKT/mTOR pathway. The addition of LY294002 reversed the tumor growth induced by BCAT1 overexpression, further verifying this mechanism. CONCLUSION BCAT1 might act as an oncogene by facilitating proliferation, invasion, and angiogenesis through activation of the PI3K/AKT/mTOR pathway. This finding could aid the optimization of antiangiogenesis strategies.
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Affiliation(s)
- Xiong Shu
- Laboratory of Molecular Orthopedics, Beijing Jishuitan Hospital, Beijing Research Institute of Orthopedics and Traumatology, Beijing, China
| | - Pan-Pan Zhan
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jun Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhi-Hua Yang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yue-Min Sun
- Department of Pancreatic and Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Sun LC, Dong XR, Tu Z, Wu DN, Lin W, Zhou XR, Zhu H. [Re-examination of malaria diagnosis in Hubei Provincial Malaria Diagnostic Reference Laboratory from 2017 to 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:631-634. [PMID: 33325200 DOI: 10.16250/j.32.1374.2020082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To analyze the re-examination results of malaria cases captured from the National Notifiable Communicable Disease Reporting System in Hubei Provincial Malaria Diagnostic Reference Laboratory from 2017 to 2019, so as to pro- vide the scientific evidence for improving the malaria control capability in the province. METHODS Microscopy and nested PCR assay were performed to re-examine the diagnosis of malaria cases registered in the National Notifiable Communicable Disease Reporting System in Hubei Provincial Malaria Diagnostic Reference Laboratory from 2017 to 2019, and the coincidences of ma- laria diagnosis and malaria parasite species were evaluated. RESULTS A total of 410 malaria cases were reported in Hubei Province from 2017 to 2019 according to the data retrieved from the National Notifiable Communicable Disease Reporting System. Among the 407 samples re-examined by Hubei Provincial Malaria Diagnostic Reference Laboratory from 2017 to 2019, the diag- nosis 374 malaria cases were confirmed, with an overall coincidence of 91.89% (374/407) for malaria diagnosis and 89.04% (333/374) for parasite species identification. The coincidence rates of malaria diagnosis and parasite species identification were 50.00% to 100.00% and 66.67% to 100.00% in 16 cities (prefectures) of Hubei Province during the re-examinations, which both varied in regions (χ2 = 40.46 and 42.30, both P values < 0.01). The coincidence rates of Plasmodium falciparum, P. vivax, P. malariae and P. ovale identification were 95.80%, 100.00%, 58.33% and 51.92% during the re-examinations, respectively (χ2 = 76.66, P < 0.01). The consistency rate between microscopic and nested PCR results was 89.83% (362/403). CONCLUSIONS The overall diagnostic quality of malaria is high in medical institutions at all levels in Hubei Province; however, the diagnostic capability of malaria remains to be improved in some regions.
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Affiliation(s)
- L C Sun
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - X R Dong
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - Z Tu
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - D N Wu
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - W Lin
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - X R Zhou
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
| | - H Zhu
- Institute of Parasitic Diseases, Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079, China
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Zhang XY, Jia YP, Zhao Q, Wang WY, Zhang Z, Li W, Sun LC. Ameliorative effect of acetylshikonin on cigarette smoke-induced lung inflammation in mice. J Asian Nat Prod Res 2020; 22:1078-1094. [PMID: 31805776 DOI: 10.1080/10286020.2019.1694512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
Cigarette smoke exposure is the major cause of chronic obstructive pulmonary disease (COPD). Acetylshikonin was the active principle component of Purple Gromwell that show anti-oxidative and anti-inflammatory effect. However, no data are available to elucidate the protective effect of acetylshikonin on COPD. Acetylshikonin could attenuate smoke-induced lung pathological changes, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), and monocyte chemoattractant protein 1 (MCP-1) productions, and tissue damages caused by oxidative stress. Furthermore, acetylshikonin was found to enhance the expression of Nrf2 and Nur77-mediated COX-2 in vivo and in vitro.
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Affiliation(s)
- Xiao-Yan Zhang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100029, China
| | - Yu-Ping Jia
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100029, China
| | - Qing Zhao
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100029, China
| | - Wen-Ya Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- National Clinical Research Center for Respiratory Diseases, Beijing 100029, China
- Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing 100029, China
| | - Zhi Zhang
- Department of Emergency, China-Japan Friendship Hospital, Beijing 100029, China
| | - Wen Li
- Department of Emergency, China-Japan Friendship Hospital, Beijing 100029, China
| | - Li-Chao Sun
- Department of Emergency, China-Japan Friendship Hospital, Beijing 100029, China
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Yang T, Shu X, Zhang HW, Sun LX, Yu L, Liu J, Sun LC, Yang ZH, Ran YL. Enolase 1 regulates stem cell-like properties in gastric cancer cells by stimulating glycolysis. Cell Death Dis 2020; 11:870. [PMID: 33067426 PMCID: PMC7567818 DOI: 10.1038/s41419-020-03087-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/18/2022]
Abstract
Recent studies have demonstrated that gastric cancer stem cells (CSCs) are a rare sub-group of gastric cancer (GC) cells and have an important role in promoting the tumor growth and progression of GC. In the present study, we demonstrated that the glycolytic enzyme Enolase 1 (ENO1) was involved in the regulation of the stem cell-like characteristics of GC cells, as compared to the parental cell lines PAMC-82 and SNU16, the expression of ENO1 in spheroids markedly increased. We then observed that ENO1 could enhance stem cell-like characteristics, including self-renewal capacity, cell invasion and migration, chemoresistance, and even the tumorigenicity of GC cells. ENO1 is known as an enzyme that is involved in glycolysis, but our results showed that ENO1 could markedly promote the glycolytic activity of cells. Furthermore, inhibiting glycolysis activity using 2-deoxy-D-glucose treatment significantly reduced the stemness of GC cells. Therefore, ENO1 could improve the stemness of CSCs by enhancing the cells' glycolysis. Subsequently, to further confirm our results, we found that the inhibition of ENO1 using AP-III-a4 (ENOblock) could reduce the stemness of GC cells to a similar extent as the knockdown of ENO1 by shRNA. Finally, increased expression of ENO1 was related to poor prognosis in GC patients. Taken together, our results demonstrated that ENO1 is a significant biomarker associated with the stemness of GC cells.
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Affiliation(s)
- Ting Yang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Xiong Shu
- Laboratory of Molecular orthopaedics, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Ji Shui Tan Hospital, Beijing, 100035, China
| | - Hui-Wen Zhang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jun Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Zhi-Hua Yang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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Wang WY, Lin JT, Zhou X, Chen P, Wan HY, Yin KS, Ma LJ, Wu CG, Li J, Liu CT, Xie H, Tang W, Huang M, Chen Y, Liu YH, Song LQ, Chen XL, Liu GL, Zhang YM, Li W, Sun LC. [An epidemiological survey on clinical features, self-management and cognitive level of elderly asthmatics in China]. Zhonghua Yi Xue Za Zhi 2020; 100:1426-1431. [PMID: 32392995 DOI: 10.3760/cma.j.cn112137-20191117-02498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the prevalence of asthma among the elderly people in China and to analyze the clinical features, self-management and cognitive level of elderly asthma patients. Methods: According to the multi-stage random cluster sampling methods, a total of 164 215 subjects were visited by a questionnaire in the last epidemiology survey from eight provinces (Beijing, Shanghai, Guangdong, Liaoning, Henan, Shanxi, Jiangsu, Sichuan provinces) and seven regions (north, northeast, southern china, east, south, southwest and northwest) in China from February 2010 to August 2012. 2 034 were diagnosed as asthma. The elderly patients aged ≥65 years were selected from the 2 034 asthma patients. The clinical characteristics, comorbidities, the status of asthma control and self-management and insights of the disease in elderly asthma patients were analyzed. Results: Among the 2 034 asthma patients, 584 (28.7%) were elderly asthmatics aged ≥65 years old and 1 450 (71.3%) were<65 years old. In the elderly asthma group, Early-onset asthma accounted for 439 (75.2%) and 145 (24.8%) were late-onset. The common clinical manifestations of elderly asthma patients were: chest distress 395 (67.6%), wheezing 304 (52.1%), cough 298 (51.0%). Common comorbidities of elderly asthmatics were: chronic obstructive pulmonary disease 144 (24.7%), allergic rhinitis 122(20.9%), gastroesopheal reflux disease (GERD) 114(19.5%), allergic conjunctivitis 86 (14.7%), eczema 82 (14.0%), chronic bronchitis 76 (13.0%). The Asthma Control Test (ACT) scores of elderly asthmatics and non-elderly asthmatics were (18.5±3.2) and (21.7±3.4) respectively. There was a significant difference between the two groups (P=0.042). Of the elderly asthmatics, only 13 (2.2%) patients monitored daily using a peak flow meter. 93 (15.9%) patients aware that asthma was characterized by chronic airway inflammation. 64 (11.0%) asthmatics understood that the treatment goal. Conclusions: The clinical manifestations of elderly asthmatics are atypical, especially paroxysmal wheezing. Asthma in elderly people causes more comorbidities and mortality. The self-management and cognitive level of patients with asthma needs to be improved.
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Affiliation(s)
- W Y Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - J T Lin
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - X Zhou
- Department of Respiratory Diseases, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 201315, China
| | - P Chen
- Department of Pulmonary and Critical Care Medicine, General Hospital of Northen Theater Shenyang Command, Shenyang 110016, China
| | - H Y Wan
- Department of Pulmonary and Critical CareMedicine, Ruijin Hospital of Shanghai Jiaotong University, Shanghai 200025, China
| | - K S Yin
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - L J Ma
- Department of Pulmonary and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - C G Wu
- Department of Pulmonary and Critical Care Medicine, Chest Hospital of Xi'an International Medical Center, Xi'an 710100, China
| | - J Li
- Guangzhou Institute of Respiratory Disease, Department of Respiratory Diseases, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C T Liu
- Department of Respiratory Diseases West China Hospital of Sichuan University, Chengdu 610041, China
| | - H Xie
- Department of Pulmonary and Critical Care Medicine, General Hospital of Northen Theater Shenyang Command, Shenyang 110016, China
| | - W Tang
- Department of Pulmonary and Critical CareMedicine, Ruijin Hospital of Shanghai Jiaotong University, Shanghai 200025, China
| | - M Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y Chen
- Guangzhou Institute of Respiratory Disease, Department of Respiratory Diseases, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Y H Liu
- Department of Respiratory Diseases West China Hospital of Sichuan University, Chengdu 610041, China
| | - L Q Song
- Department of Pulmonary and Critical Care Medicine, Xijing Hospital of Air Force Military Medical University, Xi'an 710032, China
| | - X L Chen
- Department of Pulmonary and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - G L Liu
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Y M Zhang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - W Li
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - L C Sun
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
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13
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Wang WY, Lin JT, Zhou X, Chen P, Wan HY, Yin KS, Ma LJ, Wu CG, Li J, Liu CT, Xie H, Tang W, Huang M, Chen Y, Liu YH, Song LQ, Chen XL, Liu GL, Zhang YM, Li W, Sun LC. [A survey on clinical characteristics and risk factors of severe asthma in China]. Zhonghua Yi Xue Za Zhi 2020; 100:1106-1111. [PMID: 32294877 DOI: 10.3760/cma.j.cn112137-20191117-02497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the clinical characteristics and risk factors of severe bronchial asthma in Chinese people over 14 years old. Methods: According to the multi-stage random cluster sampling methods, a total of 164 215 subjects were visited by a questionnaire in the epidemiology survey from eight provinces (Beijing, Shanghai, Guangdong, Liaoning, Henan, Shanxi, Jiangsu, Sichuan provinces) located in seven regions (north, northeast, east, central China, south, southwest and northwest) of China from February 2010 to August 2012. A total of 2 034 were diagnosed as asthma. The clinical characteristics and related risk factors of patients with severe asthma in China were analyzed. Results: Among all asthma patients, 560 were newly diagnosed, accounting for 27.5% (560/2 034) and the percentage of previously confirmed patients was 72.5% (1 474/2 034). A total of 145 were eligible for severe asthma, accounting for 9.8% (145/1 474) of previously confirmed asthmatics and 7.1% (145/2 034) of all asthmatics. 83.5% (121/145) severe asthmatics had at least one trigger factor. Correlation analysis showed that the risk factors of severe asthma were: smoking (OR=1.543, 95%CI: 1.250-1.814), obesity (OR=2.186, 95%CI: 1.972-2.354), petting (OR=2.135, 95%CI: 1.904-2.283), combined with allergic rhinitis (OR=3.456, 95%CI: 2.721-4.326), gastroesophageal reflux disease (OR=1.842, 95%CI: 1.682-2.140), bronchiectasis (OR=1.665, 95%CI: 1.347-1.912) or chronic obstructive pulmonary disease (OR=1.312, 95%CI: 1.171-1.694). Conclusions: The most common comorbidities in severe asthmatics in China are allergic rhinitis and gastroesophageal reflux disease. The risk factors of severe asthma include obesity, allergic rhinitis, gastroesophageal reflux disease, chronic obstructive pulmonary disease, bronchiectasis, smoking and petting.
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Affiliation(s)
- W Y Wang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - J T Lin
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - X Zhou
- Department of Respiratory Diseases, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 201315, China
| | - P Chen
- Department of Pulmonary and Critical Care Medicine, General Hospital of Northen Theater Shenyang Command, Shenyang 110016, China
| | - H Y Wan
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital of Shanghai Jiaotong University, Shanghai 200025, China
| | - K S Yin
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - L J Ma
- Department of Pulmonary and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - C G Wu
- Department of Pulmonary and Critical Care Medicine, Chest Hospital of Xi'an International Medical Center, Xi'an 710100, China
| | - J Li
- Guangzhou Institute of Respiratory Disease, Department of Respiratory Diseases, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C T Liu
- Department of Pulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - H Xie
- Department of Pulmonary and Critical Care Medicine, General Hospital of Northen Theater Shenyang Command, Shenyang 110016, China
| | - W Tang
- Department of Pulmonary and Critical Care Medicine, Ruijin Hospital of Shanghai Jiaotong University, Shanghai 200025, China
| | - M Huang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y Chen
- Guangzhou Institute of Respiratory Disease, Department of Respiratory Diseases, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Y H Liu
- Department of Pulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - L Q Song
- Department of Pulmonary and Critical Care Medicine, Xijing Hospital of Air Force Military Medical University, Xi'an 710032, China
| | - X L Chen
- Department of Pulmonary and Critical Care Medicine, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - G L Liu
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Y M Zhang
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - W Li
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - L C Sun
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
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Guo SD, Yan ST, Li W, Zhou H, Yang JP, Yao Y, Shen MJ, Zhang LW, Zhang HB, Sun LC. HDAC6 promotes sepsis development by impairing PHB1-mediated mitochondrial respiratory chain function. Aging (Albany NY) 2020; 12:5411-5422. [PMID: 32221047 PMCID: PMC7138540 DOI: 10.18632/aging.102964] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 02/19/2020] [Indexed: 04/09/2023]
Abstract
OBJECTIVE This study was aimed at investigating the regulation of mitochondrial function by histone deacetylase 6 (HDAC6) and the role of HDAC6 in the development and progression of sepsis. RESULTS HDAC6 downregulated PHB1 and subsequently promoted the development of CLP-induced sepsis. Inhibition of HDAC6 significantly attenuated CLP-induced sepsis through inhibition of mitochondrial dysfunction and reduced oxidant production, thus protecting the rats from oxidative injury. CONCLUSIONS In this sepsis model, HDAC6 inhibits the expression and function of PHB1 and alters the function of the mitochondrial respiratory chain mediated by PHB1, thus enhancing the production of oxidants and increasing oxidative stress and thereby leading to severe oxidative injury in multiple organs. METHODS The expression of HDAC6 and prohibitin 1 (PHB1) in humans and in a rat model of sepsis was measured by quantitative reverse-transcription PCR and western blotting. Sepsis induction by cecal ligation and puncture (CLP) was confirmed by histological analysis. Concentrations of different sepsis markers were measured by an enzyme-linked immunosorbent assay, and mitochondrial function was assessed via the mitochondrial respiratory control rate.
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Affiliation(s)
- Shi-dong Guo
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
| | - Sheng-tao Yan
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
| | - Wen Li
- Surgical Intensive Care Unit of China-Japan Friendship Hospital, Beijing, China
| | - Hong Zhou
- Department of Emergency, China Emergency General Hospital, Beijing, China
| | - Jian-ping Yang
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
| | - Yao Yao
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
| | - Mei-jia Shen
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
| | - Liu-wei Zhang
- Department of Physical Constitution and Health, Sport Science College, Beijing Sport University, Beijing, China
| | - Hong-Bo Zhang
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
| | - Li-Chao Sun
- Emergency Department of China-Japan Friendship Hospital, Beijing, China
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Sun LC, Zhang HB, Gu CD, Guo SD, Li G, Lian R, Yao Y, Zhang GQ. Protective effect of acacetin on sepsis-induced acute lung injury via its anti-inflammatory and antioxidative activity. Arch Pharm Res 2017; 41:1199-1210. [PMID: 29243040 PMCID: PMC7101724 DOI: 10.1007/s12272-017-0991-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 11/19/2017] [Indexed: 01/14/2023]
Abstract
Sepsis is a clinical syndrome with no effective protective or therapeutic treatments. Acacetin, a natural flavonoid compound, has anti-oxidative and anti-inflammatory effects which can potentially work to reduce sepsis. We investigated the potential protective effect of acacetin on sepsis-induced acute lung injury (ALI) ALI and dissect out the underlying mechanisms. Mice were divided into five groups: a sham group, a sepsis-induced ALI group, and three sepsis groups pre-treated with 20, 40, and 80 mg/kg body weight of acacetin. We found that acacetin significantly attenuated sepsis-induced ALI, in histological examinations and lung edema. Additionally, acacetin treatment decreased protein and inflammatory cytokine concentration and the number of infiltrated inflammatory cells in BALF compared with that in the non-treated sepsis mice. Pulmonary myeloperoxidase (MPO) activity was lower in the acacetin-pre-treated sepsis groups than in the sepsis group. The mechanism underlying the protective effect of acacetin on sepsis is related to the regulation of certain antioxidation genes, including inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), superoxide dismutases (SODs), and heme oxygenase 1 (HO-1).Taken together, our results indicate that acacetin pre-treatment inhibits sepsis-induced ALI through its anti-inflammatory and antioxidative activity, suggesting that acacetin may be a potential protective agent for sepsis-induced ALI.
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Affiliation(s)
- Li-Chao Sun
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Hong-Bo Zhang
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Cheng-Dong Gu
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Shi-Dong Guo
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Gang Li
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Rui Lian
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Yao Yao
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China
| | - Guo-Qiang Zhang
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Chaoyang District, Hepingli, Beijing, 100029, China.
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Lin MS, Chen RT, Yu NY, Sun LC, Liu Y, Cui CH, Xie SY, Huang RB, Zheng LS. Fullerene-based amino acid ester chlorides self-assembled as spherical nano-vesicles for drug delayed release. Colloids Surf B Biointerfaces 2017; 159:613-619. [DOI: 10.1016/j.colsurfb.2017.08.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/31/2017] [Accepted: 08/02/2017] [Indexed: 10/19/2022]
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Qiu JQ, Cui Y, Sun LC, Zhu ZP. Aphasic status epilepticus as the sole symptom of epilepsy: A case report and literature review. Exp Ther Med 2017; 14:3501-3506. [PMID: 29042939 PMCID: PMC5639272 DOI: 10.3892/etm.2017.4979] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 06/02/2017] [Indexed: 12/03/2022] Open
Abstract
Aphasia is a common symptom encountered by neurologists. However, the presence of aphasia as the sole manifestation of partial status epilepticus is rare. The present study reports a case of aphasic status epilepticus in a 27-year-old right-handed female who presented after the abrupt onset of aphasia, which had persisted for 1.5 days. The patient's medical history included head trauma followed by a craniectomy and cranioplasty. Computed tomography scans revealed a lesion in the patient's left parietal lobe, and an electroencephalogram showed a spike and slow wave pattern in the left hemisphere of the brain during aphasia. The patient's condition improved after the oral administration of oxcarbazepine daily. In the present study it was observed that EEGs were a simple method to diagnose aphasic seizures and therefore EEG recordings should be performed in all cases of unexplained aphasia. In addition, the present study reviewed previously reported cases of aphasic status epilepticus.
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Affiliation(s)
- Ji-Qing Qiu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yu Cui
- Department of Otolaryngology, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Li-Chao Sun
- Department of Emergency, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhan-Peng Zhu
- Department of Neurosurgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
- Correspondence to: Dr Zhan-Peng Zhu, Department of Neurosurgery, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, P.R. China, E-mail:
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Nong Y, Lin JT, Chen P, Zhou X, Wan HY, Yin KS, Ma LJ, Wu CG, Li J, Liu CT, Su N, Liu GL, Xie H, Tang W, Huang M, Chen YH, Liu LJ, Song Y, Chen XL, Zhang YM, Wang WY, Li W, Sun LC. [The relationship between smoking status and epidermiology of asthma in people aged over 14 years in China]. Zhonghua Nei Ke Za Zhi 2017; 56:485-489. [PMID: 28693055 DOI: 10.3760/cma.j.issn.0578-1426.2017.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the relationship between bronchial asthma and smoking status in Chinese people. Methods: Asthma epidemiological survey and stratified-cluster-random method survey were performed in residents over 14 years in 8 provinces (cities) of China from February 2010 to August 2012. Asthma was diagnosed based upon case history, clinical signs and lung function test. Smoking status was investigated by questionnaire. Results: Sampling population was 180 099 and 164 215 were valid. A total of 2 034 subjects were diagnosed as asthma including 79 692 men and 84 523 women. The overall prevalence rate of asthma was 1.24% (2 034/164 215). Smokers were 23.8% (39 137/164 215) in the whole population. Smokers were 34.5% (702/2 034) in asthmatic patients, compared with 23.7% (38 435/162 181) in no-asthmatic population. The incidence of asthma was 1.79% and 1.06% in smokers and non-smokers respectively (P<0.001), suggesting that OR of smoking was 1.70 (95% CI 1.55-1.86, P<0.001). According to asthma control test (ACT) score, the level of asthma control in non smoking group was higher than that in smoking group(43.2% vs 35.3%). The times of hospitalization due to acute exacerbations(0.51 vs 0.41 events/person/year), total hospitalization rate(27.35% vs 20.12%), annual emergency room visits (0.80 vs 0.60 events/person/year) and emergency room visit rate (31.77% vs 24.47%) were all much higher in smoking asthmatic patients than those in non smoking asthmatic patients, indicating that the level of asthma control in smoking patients was significantly worse than in non smoking patients. Conclusions: The smoking rate in Chinese people over 14 years is still high. The prevalence rate of asthma in smokers is significantly higher than that of non-smokers. The level of asthma control in smokers is significantly worse than that in non smokers.
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Affiliation(s)
| | - J T Lin
- Department of Respiratory and Critical Care Medicine, China-Japan Friendship Hospital, Beijing 100029, China
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Zhang HB, Sun LC, Zhi LD, Wen QK, Qi ZW, Yan ST, Li W, Zhang GQ. Astilbin alleviates sepsis-induced acute lung injury by inhibiting the expression of macrophage inhibitory factor in rats. Arch Pharm Res 2017; 40:1176-1185. [PMID: 28840536 DOI: 10.1007/s12272-016-0857-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 11/02/2016] [Indexed: 12/14/2022]
Abstract
Sepsis is a systemic inflammatory response syndrome caused by severe infections. Astilbin is a dihydroflavonol derivative found in many medicinal and food plants with multiple pharmacological functions. To investigate the effects of astilbin on sepsis-induced acute lung injury (ALI), cecal ligation and puncture was performed on rats to establish a sepsis-induced ALI model; these rats were then treated with astilbin at different concentrations. Lung injury scores, including lung wet/dry ratio, protein leakage, myeloperoxidase activity, and inflammatory cell infiltration were determined to evaluate the effects of astilbin on sepsis-induced ALI. We found that astilbin treatment significantly attenuates sepsis-induced lung injury and improves survival rate, lung injury scores, lung wet/dry ratio, protein leakage, myeloperoxidase activity, and inflammatory cell infiltration. Astilbin treatment also dramatically decreased the production of inflammatory cytokines and chemokines in bronchoalveolar lavage fluid. Further, astilbin treatment inhibited the expression and production of macrophage inhibitory factor (MIF), which inhibits the inflammatory response. Collectively, these data suggest that astilbin has a protective effect against sepsis-induced ALI by inhibiting MIF-mediated inflammatory responses. This study provides a molecular basis for astilbin as a new medical treatment for sepsis-induced ALI.
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Affiliation(s)
- Hong-Bo Zhang
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Li-Chao Sun
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Li-da Zhi
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Qian-Kuan Wen
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Zhi-Wei Qi
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Sheng-Tao Yan
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Wen Li
- Critical Care Medicine Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China
| | - Guo-Qiang Zhang
- Emergency Department of China-Japan Friendship Hospital, 2 Yinghua Dongjie, Hepingli, Chaoyang District, Beijing, 100029, China.
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20
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Qiu JQ, Cui Y, Sun LC, Zhu ZP. Subcutaneous metastasis after three surgeries for brain metastasis from lung cancer: A case report and review of the literature. Mol Clin Oncol 2016; 5:697-700. [PMID: 28105349 PMCID: PMC5228495 DOI: 10.3892/mco.2016.1039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 09/23/2016] [Indexed: 11/10/2022] Open
Abstract
Lung cancer is a common malignancy that is frequently associated with distant subcutaneous metastasis. However, reports of subcutaneous metastasis of lung cancer after three surgeries for recurrent brain metastasis are scarce. The present study describes the case of a 49-year-old female patient who was admitted to our hospital with a cutaneous mass. The patient had a history of lung cancer and had undergone three surgeries for brain metastases. The subcutaneous mass was considered to be an implantation metastasis from the previous brain metastases. The cutaneous mass was grossly resected and histopathological examination revealed adenocarcinoma. This case highlights the need to perform a comprehensive analysis for suspected subcutaneous masses in lung cancer patients. Furthermore, pathological examination is crucial for accurate diagnosis and timely treatment.
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Affiliation(s)
- Ji-Qing Qiu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yu Cui
- Department of Otolaryngology, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Li-Chao Sun
- Department of Emergency, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhan-Peng Zhu
- Department of Neurosurgery, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
- Correspondence to: Dr Zhan-Peng Zhu, Department of Neurosurgery, First Hospital of Jilin University, 71 Xinmin Street, Changchun, Jilin 130021, P.R. China, E-mail:
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Zhang HB, Sun LC, Ling L, Cong LH, Lian R. miR-143 suppresses the proliferation of NSCLC cells by inhibiting the epidermal growth factor receptor. Exp Ther Med 2016; 12:1795-1802. [PMID: 27602093 DOI: 10.3892/etm.2016.3555] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 04/08/2016] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs (miRs) regulate the proliferation and metastasis of numerous cancer cell types. It was previously reported that miR-143 levels were downregulated in non-small cell lung cancer (NSCLC) tissues and cell lines, and that the migration and invasion of NSCLC cells was inhibited upon suppression of cell proliferation and colony formation by the upregulation of miR-143. Epidermal growth factor receptor (EGFR), which is a vital factor in the promotion of cancer cell proliferation and has been investigated as a potential focus in cancer therapy, has been reported to be a possible target of miR-143. The present study aimed to investigate the role of miR-143 in NSCLC using NSCLC cell lines and primary cells from NSCLC patients. NSCLC cells were co-transfected with EGFR and miR-143, and the mRNA and protein expression of EGFR were analyzed. Furthermore, the activity of the transfected cancer cells with regard to colony formation, migration, invasion and apoptosis were evaluated. The levels of miR-143 were decreased in the NSCLC cell lines and primary cells from patients with NSCLC compared with the controls. Following transfection with miR-143, the ability of NSCLC cells to proliferate, form colonies, migrate and invade was inhibited. Similarly, knockdown of EGFR led to the suppression of NSCLC cell proliferation. The mRNA and protein expression levels of EGFR were significantly reduced following miR-143 overexpression, and the level of miR-143 was inversely correlated with that of EGFR in NSCLC cells. The results of the present study demonstrated that miR-143 was able to suppress NSCLC cell proliferation and invasion by inhibiting the effects of EGFR, suggesting that EGFR may be considered a potential target for NSCLC therapy.
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Affiliation(s)
- Hong-Bo Zhang
- Department of Emergency Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Li-Chao Sun
- Department of Emergency Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Lan Ling
- Department of Emergency Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Lu-Hong Cong
- Department of Emergency Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
| | - Rui Lian
- Department of Emergency Medicine, China-Japan Friendship Hospital, Beijing 100029, P.R. China
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22
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Tao YF, Fang F, Hu SY, Lu J, Cao L, Zhao WL, Xiao PF, Li ZH, Wang NN, Xu LX, Du XJ, Sun LC, Li YH, Li YP, Xu YY, Ni J, Wang J, Feng X, Pan J. Hypermethylation of the GATA binding protein 4 (GATA4) promoter in Chinese pediatric acute myeloid leukemia. BMC Cancer 2015; 15:756. [PMID: 26490736 PMCID: PMC4618362 DOI: 10.1186/s12885-015-1760-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Accepted: 10/09/2015] [Indexed: 12/12/2022] Open
Abstract
Background Acute myeloid leukemia (AML) is the second-most common form of leukemia in children. Aberrant DNA methylation patterns are a characteristic feature of AML. GATA4 has been suggested to be a tumor suppressor gene regulated by promoter hypermethylation in various types of human cancers although the expression and promoter methylation of GATA4 in pediatric AML is still unclear. Methods Transcriptional expression levels of GATA4 were evaluated by semi-quantitative and real-time PCR. Methylation status was investigated by methylation-specific PCR (MSP) and bisulfate genomic sequencing (BGS). The prognostic significance of GATA4 expression and promoter methylation was assessed in 105 cases of Chinese pediatric acute myeloid leukemia patients with clinical follow-up records. Results MSP and BGS analysis showed that the GATA4 gene promoter is hypermethylated in AML cells, such as the HL-60 and MV4-11 human myeloid leukemia cell lines. 5-Aza treatment significantly upregulated GATA4 expression in HL-60 and MV4-11 cells. Aberrant methylation of GATA4 was observed in 15.0 % (3/20) of the normal bone marrow control samples compared to 56.2 % (59/105) of the pediatric AML samples. GATA4 transcript levels were significantly decreased in AML patients (33.06 ± 70.94; P = 0.011) compared to normal bone marrow/idiopathic thrombocytopenic purpura controls (116.76 ± 105.39). GATA4 promoter methylation was correlated with patient leukocyte counts (WBC, white blood cells) (P = 0.035) and minimal residual disease MRD (P = 0.031). Kaplan-Meier survival analysis revealed significantly shorter overall survival time in patients with GATA4 promoter methylation (P = 0.014). Conclusions Epigenetic inactivation of GATA4 by promoter hypermethylation was observed in both AML cell lines and pediatric AML samples; our study implicates GATA4 as a putative tumor suppressor gene in pediatric AML. In addition, our findings imply that GATA4 promoter methylation is correlated with WBC and MRD. Kaplan-Meier survival analysis revealed significantly shorter overall survival in pediatric AML with GATA4 promoter methylation but multivariate analysis shows that it is not an independent factor. However, further research focusing on the mechanism of GATA4 in pediatric leukemia is required. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1760-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yan-Fang Tao
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Fang Fang
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Jun Lu
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Lan Cao
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Na-Na Wang
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese PLA, Yin chuan, China.
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
| | - Yan-Hong Li
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Yi-Ping Li
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Yun-Yun Xu
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing, China.
| | - Jian Wang
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Xing Feng
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
| | - Jian Pan
- Department of Hematology and Oncology, Childrens Hospital of Soochow University, Suzhou, China.
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23
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Lu J, Tao YF, Li ZH, Cao L, Hu SY, Wang NN, Du XJ, Sun LC, Zhao WL, Xiao PF, Fang F, Xu LX, Li YH, Li G, Zhao H, Ni J, Wang J, Feng X, Pan J. Analyzing the gene expression profile of anaplastic histology Wilms' tumor with real-time polymerase chain reaction arrays. Cancer Cell Int 2015; 15:44. [PMID: 26136641 PMCID: PMC4486424 DOI: 10.1186/s12935-015-0197-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 04/12/2015] [Indexed: 11/10/2022] Open
Abstract
Background Wilms’ tumor (WT) is one of the most common malignant neoplasms of the urinary tract in children. Anaplastic histology (unfavorable histology) accounts for about 10% of whole WTs, and it is the single most important histologic predictor of treatment response and survival in patients with WT; however, until now the molecular basis of this phenotype is not very clearly. Methods A real-time polymerase chain reaction (PCR) array was designed and tested. Next, the gene expression profile of pediatric anaplastic histology WT and normal adjacent tissues were analyzed. These expression data were anlyzed with Multi Experiment View (MEV) cluster software further. Datasets representing genes with altered expression profiles derived from cluster analyses were imported into the Ingenuity Pathway Analysis Tool (IPA). Results 88 real-time PCR primer pairs for quantitative gene expression analysis of key genes involved in pediatric anaplastic histology WT were designed and tested. The gene expression profile of pediatric anaplastic histology WT is significantly different from adjacent normal controls; we identified 15 genes that are up-regulated and 16 genes that are down-regulated in the former. To investigate biological interactions of these differently regulated genes, datasets representing genes with altered expression profiles were imported into the IPA for further analysis, which revealed three significant networks: Cancer, Hematological Disease, and Gene Expression, which included 27 focus molecules and a significance score of 43. The IPA analysis also grouped the differentially expressed genes into biological mechanisms related to Cell Death and Survival 1.15E−12, Cellular Development 2.84E−11, Cellular Growth and Proliferation 2.84E-11, Gene Expression 4.43E−10, and DNA Replication, Recombination, and Repair 1.39E−07. The important upstream regulators of pediatric anaplastic histology WT were TP53 and TGFβ1 signaling (P = 1.15E−14 and 3.79E−13, respectively). Conclusions Our study demonstrates that the gene expression profile of pediatric anaplastic histology WT is significantly different from adjacent normal tissues with real-time PCR array. We identified some genes that are dysregulated in pediatric anaplastic histology WT for the first time, such as HDAC7, and IPA analysis showed the most important pathways for pediatric anaplastic histology WT are TP53 and TGFβ1 signaling. This work may provide new clues into the molecular mechanisms behind pediatric anaplastic histology WT. Electronic supplementary material The online version of this article (doi:10.1186/s12935-015-0197-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Lan Cao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Na-Na Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese PLA, Yin chuan, China
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Yan-Hong Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Gang Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - He Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing, China
| | - Jian Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xing Feng
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
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24
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Tao YF, Xu LX, Lu J, Hu SY, Fang F, Cao L, Xiao PF, Du XJ, Sun LC, Li ZH, Wang NN, Su GH, Li YH, Li G, Zhao H, Li YP, Xu YY, Zhou HT, Wu Y, Jin MF, Liu L, Zhu XM, Ni J, Wang J, Xing F, Zhao WL, Pan J. Early B-cell factor 3 (EBF3) is a novel tumor suppressor gene with promoter hypermethylation in pediatric acute myeloid leukemia. J Exp Clin Cancer Res 2015; 34:4. [PMID: 25609158 PMCID: PMC4311429 DOI: 10.1186/s13046-014-0118-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 11/27/2014] [Indexed: 12/21/2022]
Abstract
Background Pediatric acute myeloid leukemia (AML) comprises up to 20% of all childhood leukemia. Recent research shows that aberrant DNA methylation patterning may play a role in leukemogenesis. The epigenetic silencing of the EBF3 locus is very frequent in glioblastoma. However, the expression profiles and molecular function of EBF3 in pediatric AML is still unclear. Methods Twelve human acute leukemia cell lines, 105 pediatric AML samples and 30 normal bone marrow/idiopathic thrombocytopenic purpura (NBM/ITP) control samples were analyzed. Transcriptional level of EBF3 was evaluated by semi-quantitative and real-time PCR. EBF3 methylation status was determined by methylation specific PCR (MSP) and bisulfite genomic sequencing (BGS). The molecular mechanism of EBF3 was investigated by apoptosis assays and PCR array analysis. Results EBF3 promoter was hypermethylated in 10/12 leukemia cell lines. Aberrant EBF3 methylation was observed in 42.9% (45/105) of the pediatric AML samples using MSP analysis, and the BGS results confirmed promoter methylation. EBF3 expression was decreased in the AML samples compared with control. Methylated samples revealed similar survival outcomes by Kaplan-Meier survival analysis. EBF3 overexpression significantly inhibited cell proliferation and increased apoptosis. Real-time PCR array analysis revealed 93 dysregulated genes possibly implicated in the apoptosis of EBF3-induced AML cells. Conclusion In this study, we firstly identified epigenetic inactivation of EBF3 in both AML cell lines and pediatric AML samples for the first time. Our findings also showed for the first time that transcriptional overexpression of EBF3 could inhibit proliferation and induce apoptosis in AML cells. We identified 93 dysregulated apoptosis-related genes in EBF3-overexpressing, including DCC, AIFM2 and DAPK1. Most of these genes have never been related with EBF3 over expression. These results may provide new insights into the molecular mechanism of EBF3-induced apoptosis; however, further research will be required to determine the underlying details. Our findings suggest that EBF3 may act as a putative tumor suppressor gene in pediatric AML.
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Affiliation(s)
- Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Lan Cao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese PLA, Yin chuan, China.
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Na-Na Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Guang-Hao Su
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yan-Hong Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Gang Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - He Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yi-Ping Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yun-Yun Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Hui-Ting Zhou
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Yi Wu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Mei-Fang Jin
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Lin Liu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Xue-Ming Zhu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing, China.
| | - Jian Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Feng Xing
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China.
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25
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Wang NN, Li ZH, Zhao H, Tao YF, Xu LX, Lu J, Cao L, Du XJ, Sun LC, Zhao WL, Xiao PF, Fang F, Su GH, Li YH, Li G, Li YP, Xu YY, Zhou HT, Wu Y, Jin MF, Liu L, Ni J, Wang J, Hu SY, Zhu XM, Feng X, Pan J. Molecular targeting of the oncoprotein PLK1 in pediatric acute myeloid leukemia: RO3280, a novel PLK1 inhibitor, induces apoptosis in leukemia cells. Int J Mol Sci 2015; 16:1266-92. [PMID: 25574601 PMCID: PMC4307303 DOI: 10.3390/ijms16011266] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/29/2014] [Indexed: 01/03/2023] Open
Abstract
Polo-like kinase 1 (PLK1) is highly expressed in many cancers and therefore a biomarker of transformation and potential target for the development of cancer-specific small molecule drugs. RO3280 was recently identified as a novel PLK1 inhibitor; however its therapeutic effects in leukemia treatment are still unknown. We found that the PLK1 protein was highly expressed in leukemia cell lines as well as 73.3% (11/15) of pediatric acute myeloid leukemia (AML) samples. PLK1 mRNA expression was significantly higher in AML samples compared with control samples (82.95 ± 110.28 vs. 6.36 ± 6.35; p < 0.001). Kaplan-Meier survival analysis revealed that shorter survival time correlated with high tumor PLK1 expression (p = 0.002). The 50% inhibitory concentration (IC50) of RO3280 for acute leukemia cells was between 74 and 797 nM. The IC50 of RO3280 in primary acute lymphocytic leukemia (ALL) and AML cells was between 35.49 and 110.76 nM and 52.80 and 147.50 nM, respectively. RO3280 induced apoptosis and cell cycle disorder in leukemia cells. RO3280 treatment regulated several apoptosis-associated genes. The regulation of DCC, CDKN1A, BTK, and SOCS2 was verified by western blot. These results provide insights into the potential use of RO3280 for AML therapy; however, the underlying mechanisms remain to be determined.
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Affiliation(s)
- Na-Na Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - He Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Lan Cao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese People's Liberation Army (PLA), Yinchuan 750000, China.
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021, China.
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Guang-Hao Su
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yan-Hong Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Gang Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yi-Ping Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yun-Yun Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Hui-Ting Zhou
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Yi Wu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Mei-Fang Jin
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Lin Liu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing 210000, China.
| | - Jian Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Xue-Ming Zhu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Xing Feng
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China.
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Tao YF, Hu SY, Lu J, Cao L, Zhao WL, Xiao PF, Xu LX, Li ZH, Wang NN, Du XJ, Sun LC, Zhao H, Fang F, Su GH, Li YH, Li YP, Xu YY, Ni J, Wang J, Feng X, Pan J. Zinc finger protein 382 is downregulated by promoter hypermethylation in pediatric acute myeloid leukemia patients. Int J Mol Med 2014; 34:1505-15. [PMID: 25319049 PMCID: PMC4214337 DOI: 10.3892/ijmm.2014.1966] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 10/03/2014] [Indexed: 11/06/2022] Open
Abstract
Acute myeloid leukemia (AML) is the second-most common form of leukemia in children. Aberrant DNA methylation patterns are characteristic of AML. Zinc finger protein 382 (ZNF382) has been suggested to be a tumor suppressor gene possibly regulated by promoter hypermethylation in various types of human cancer. However, ZNF382 expression and methylation status in pediatric AML is unknown. In the present study, ZNF382 transcription levels were evaluated by quantitative reverse-transcription PCR. Methylation status was investigated by methylation-specific (MSP) PCR and bisulfate genomic sequencing (BGS). The prognostic significance of ZNF382 expression and promoter methylation was assessed in 105 cases of pediatric AML. The array data suggested that the ZNF382 promoter was hypermethylated in the AML cases examined. MSP PCR and BGS analysis revealed that ZNF382 was hypermethylated in leukemia cell lines. Furthermore, treatment with 5-aza-2'-deoxycytidine (5-Aza) upregulated ZNF382 expression in the selected leukemia cell lines. The aberrant methylation of ZNF382 was observed in 10% (2/20) of the control samples compared with 26.7% (28/105) of the AML samples. ZNF382 expression was significantly decreased in the 105 AML patients compared with the controls. Patients with ZNF382 methylation showed lower ZNF382 transcript levels compared with patients exhibiting no methylation. There were no significant differences in clinical characteristics or cytogenetic analysis between the patients with or without ZNF382 methylation. ZNF382 methylation correlated with minimal residual disease (MRD). Kaplan-Meier survival analysis revealed similar survival times in the samples with ZNF382 methylation, and multivariate analysis revealed that ZNF382 methylation was not an independent prognostic factor in pediatric AML. The epigenetic inactivation of ZNF382 by promoter hypermethylation can be observed in AML cell lines and pediatric AML samples. Therefore, our study suggests that ZNF382 may be considered a putative tumor suppressor gene in pediatric AML. However, further studies focusing on the mechanisms responsible for ZNF382 downregulation in pediatric leukemia are required.
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Affiliation(s)
- Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Jun Lu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Lan Cao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Pei-Fang Xiao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Li-Xiao Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Zhi-Heng Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Na-Na Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Xiao-Juan Du
- Department of Gastroenterology, The 5th Hospital of Chinese PLA, Yinchuan, Ningxia, P.R. China
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, P.R. China
| | - He Zhao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Fang Fang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Guang-Hao Su
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Yan-Hong Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Yi-Ping Li
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Yun-Yun Xu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Jian Ni
- Translational Research Center, Second Hospital, The Second Clinical School, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Jian Wang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Xing Feng
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
| | - Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, Jiangsu, P.R. China
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Tao YF, Pang L, Du XJ, Sun LC, Hu SY, Lu J, Cao L, Zhao WL, Feng X, Wang J, Wu D, Wang N, Ni J, Pan J. Differential mRNA expression levels of human histone-modifying enzymes in normal karyotype B cell pediatric acute lymphoblastic leukemia. Int J Mol Sci 2013; 14:3376-94. [PMID: 23389039 PMCID: PMC3588049 DOI: 10.3390/ijms14023376] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 01/29/2013] [Accepted: 01/30/2013] [Indexed: 11/16/2022] Open
Abstract
Histone modification enzymes regulate gene expression by altering the accessibility of promoters to transcription factors. We sought to determine whether the genes encoding histone modification enzymes are dysregulated in pediatric acute lymphoblastic leukemia (ALL). A real-time PCR array was designed, tested and used to profile the expression of 85 genes encoding histone modification enzymes in bone marrow mononuclear cells from 30 pediatric ALL patients and 20 normal controls. The expression profile of histone-modifying genes was significantly different between normal karyotype B cell pediatric ALL and normal controls. Eleven genes were upregulated in pediatric ALL, including the histone deacetylases HDAC2 and PAK1, and seven genes were downregulated, including PRMT2 and the putative tumor suppressor EP300. Future studies will seek to determine whether these genes serve as biomarkers of pediatric ALL. Ingenuity Pathway Analysis revealed that Gene Expression and Organ Morphology was the highest rated network, with 13 focus molecules (significance score = 35). Ingenuity Pathway Analysis also indicated that curcumin and miR-34 are upstream regulators of histone-modifying enzymes; future studies will seek to validate these results and examine the role of curcumin and miR-34 in leukemia. This study provides new clues into the molecular mechanisms of pediatric ALL.
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Affiliation(s)
- Yan-Fang Tao
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Li Pang
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Xiao-Juan Du
- Department of Gastroenterology, the 5th Hospital of Chinese PLA, Yinchuan 750004, Ningxia, China; E-Mail:
| | - Li-Chao Sun
- Department of Cell and Molecular Biology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing100021, China; E-Mail:
| | - Shao-Yan Hu
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Jun Lu
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Lan Cao
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Wen-Li Zhao
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Xing Feng
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Jian Wang
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Dong Wu
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Na Wang
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
| | - Jian Ni
- Translational Research Center, The Second Clinical School, Nanjing Medical University, Nanjing 210011, Jiangsu, China; E-Mail:
| | - Jian Pan
- Department of Hematology and Oncology, Children’s Hospital of Soochow University, Suzhou 215003, Jiangsu, China; E-Mails: (Y.-F.T.); (L.P.); (S.-Y.H.); (J.L.); (L.C.); (W.-L.Z.); (X.F.); (J.W.); (D.W.); (N.W.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-512-6778-8216
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Tao YF, Lu J, Du XJ, Sun LC, Zhao X, Peng L, Cao L, Xiao PF, Pang L, Wu D, Wang N, Feng X, Li YH, Ni J, Wang J, Pan J. Survivin selective inhibitor YM155 induce apoptosis in SK-NEP-1 Wilms tumor cells. BMC Cancer 2012; 12:619. [PMID: 23267699 PMCID: PMC3543843 DOI: 10.1186/1471-2407-12-619] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 12/21/2012] [Indexed: 12/11/2022] Open
Abstract
Background Survivin, a member of the family of inhibitor of apoptosis proteins, functions as a key regulator of mitosis and programmed cell death. YM155, a novel molecular targeted agent, suppresses survivin, which is overexpressed in many tumor types. The aim of this study was to determine the antitumor activity of YM155 in SK-NEP-1 cells. Methods SK-NEP-1 cell growth in vitro and in vivo was assessed by MTT and nude mice experiments. Annexin V/propidium iodide staining followed by flow cytometric analysis was used to detect apoptosis in cell culture. Then gene expression profile of tumor cells treated with YM155 was analyzed with real-time PCR arrays. We then analyzed the expression data with MEV (Multi Experiment View) cluster software. Datasets representing genes with altered expression profile derived from cluster analyses were imported into the Ingenuity Pathway Analysis tool. Results YM155 treatment resulted in inhibition of cell proliferation of SK-NEP-1cells in a dose-dependent manner. Annexin V assay, cell cycle, and activation of caspase-3 demonstrates that YM155 induced apoptosis in SK-NEP-1 cells. YM155 significantly inhibited growth of SK-NEP-1 xenografts (YM155 5 mg/kg: 1.45 ± 0.77 cm3; YM155 10 mg/kg: 0.95 ± 0.55 cm3) compared to DMSO group (DMSO: 3.70 ± 2.4 cm3) or PBS group cells (PBS: 3.78 ± 2.20 cm3, ANOVA P < 0.01). YM155 treatment decreased weight of tumors (YM155 5 mg/kg: 1.05 ± 0.24 g; YM155 10 mg/kg: 0.72 ± 0.17 g) compared to DMSO group (DMSO: 2.06 ± 0.38 g) or PBS group cells (PBS: 2.36 ± 0.43 g, ANOVA P < 0.01). Real-time PCR array analysis showed between Test group and control group there are 32 genes significantly up-regulated and 54 genes were significantly down-regulated after YM155 treatment. Ingenuity pathway analysis (IPA) showed cell death was the highest rated network with 65 focus molecules and the significance score of 44. The IPA analysis also groups the differentially expressed genes into biological mechanisms that are related to cell death, cellular function maintenance, cell morphology, carbohydrate metabolism and cellular growth and proliferation. Death receptor signaling (3.87E-19), TNFR1 signaling, induction of apoptosis by HIV1, apoptosis signaling and molecular mechanisms of cancer came out to be the top four most significant pathways. IPA analysis also showed top molecules up-regulated were BBC3, BIRC3, BIRC8, BNIP1, CASP7, CASP9, CD5, CDKN1A, CEBPG and COL4A3, top molecules down-regulated were ZNF443, UTP11L, TP73, TNFSF10, TNFRSF1B, TNFRSF25, TIAF1, STK17A, SST and SPP1, upstream regulator were NR3C1, TP53, dexamethasone , TNF and Akt. Conclusions The present study demonstrates that YM155 treatment resulted in apoptosis and inhibition of cell proliferation of SK-NEP-1cells. YM155 had significant role and little side effect in the treatment of SK-NEP-1 xenograft tumors. Real-time PCR array analysis firstly showed expression profile of genes dyes-regulated after YM155 treatment. IPA analysis also represents new molecule mechanism of YM155 treatment, such as NR3C1 and dexamethasone may be new target of YM155. And our results may provide new clues of molecular mechanism of apoptosis induced by YM155.
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Affiliation(s)
- Yan-Fang Tao
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
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Wang YX, Huang L, Sun LC, Xie SY, Xu GL, Chen SR, Xu YF, Li JT, Chou SL, Dou SX, Sun SG. Facile synthesis of a interleaved expanded graphite-embedded sulphur nanocomposite as cathode of Li–S batteries with excellent lithium storage performance. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15041g] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Rong Y, Wang YX, Sun LX, Zhang XY, Yang ZH, Ran YL, Sun LC. CD117-positive cells in human hepatocarcinoma cell line HepG2: isolation and evaluation of their stem cell properties. Shijie Huaren Xiaohua Zazhi 2011; 19:3649-3655. [DOI: 10.11569/wcjd.v19.i36.3649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To isolate CD117+ cells from human hepatocarcinoma cell line HepG2 and to observe their biological behavior and stem cell properties.
METHODS: HepG2 cells were cultured in serum-free medium. Flow cytometry was used to detect the expression of CD117 in HepG2 cells and sphere cells. CD117+ and CD117- cells were sorted by FACS and their ability of proliferation and self-renewal was observed in vitro. Chemosensitivity to cisplatin was determined by CCK-8 assay. The inhibitory rate of cells treated with cisplatin, the half maximal inhibitory concentration (IC50) and resistance index (RI) were measured.
RESULTS: HepG2 cells could survive, proliferate and form sphere cells in serum-free medium. The sphere-forming rate was 6.21% ± 2.03%. The percentage of CD117+ cells population in sphere cells increased by 9 folds compared to HepG2 cells. The sphere-forming ability and proliferation ability of CD117+ subpopulation in serum-free medium were significantly higher than un-sorted cells and CD117- cells. The inhibitory rate of CD117+ cells treated with cisplatin of different concentrations was lower than un-sorted cells and CD117- cells. The IC50 were 12.229 μmol/L in CD117+ cells, 7.970 μmol/L in un-sorted cells, and 7.345 μmol/L in CD117- cells, and the RI of CD117+ cells and un-sorted cells were 1.165 and 1.076, respectively.
CONCLUSION: CD117+ cells are a subpopulation of HepG2 cells with stem cell properties. CD117 may be a candidate surface marker for liver cancer stem cells.
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Pan J, Sun LC, Tao YF, Zhou Z, Du XL, Peng L, Feng X, Wang J, Li YP, Liu L, Wu SY, Zhang YL, Hu SY, Zhao WL, Zhu XM, Lou GL, Ni J. ATP synthase ecto-α-subunit: a novel therapeutic target for breast cancer. J Transl Med 2011; 9:211. [PMID: 22152132 PMCID: PMC3254596 DOI: 10.1186/1479-5876-9-211] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 12/08/2011] [Indexed: 11/10/2022] Open
Abstract
Background Treatment failure for breast cancer is frequently due to lymph node metastasis and invasion to neighboring organs. The aim of the present study was to investigate invasion- and metastasis-related genes in breast cancer cells in vitro and in vivo. Identification of new targets will facilitate the developmental pace of new techniques in screening and early diagnosis. Improved abilities to predict progression and metastasis, therapeutic response and toxicity will help to increase survival of breast cancer patients. Methods Differential protein expression in two breast cancer cell lines, one with high and the other with low metastatic potential, was analyzed using two-dimensional liquid phase chromatographic fractionation (Proteome Lab PF 2D system) followed by matrix-assisted laser desorption/time-of-flight mass spectrometry (MALDI-TOF/MS). Results Up regulation of α-subunit of ATP synthase was identified in high metastatic cells compared with low metastatic cells. Immunohistochemical analysis of 168 human breast cancer specimens on tissue microarrays revealed a high frequency of ATP synthase α-subunit expression in breast cancer (94.6%) compared to normal (21.2%) and atypical hyperplasia (23%) breast tissues. Levels of ATP synthase expression levels strongly correlated with large tumor size, poor tumor differentiation and advanced tumor stages (P < 0.05). ATP synthase α-subunit over-expression was detected on the surface of a highly invasive breast cancer cell line. An antibody against the ATP synthase α-subunit inhibited proliferation, migration and invasion in these breast cancer cells but not that of a non-tumor derived breast cell line. Conclusions Over-expression of ATP synthase α-subunit may be involved in the progression and metastasis of breast cancer, perhaps representing a potential biomarker for diagnosis, prognosis and a therapeutic target for breast cancer. This finding of this study will help us to better understand the molecular mechanism of tumor metastasis and to improve the screening, diagnosis, as well as prognosis and/or prediction of responses to therapy for breast cancer.
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Affiliation(s)
- Jian Pan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou 215003, China
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Ma CY, Meng YY, Shan GJ, Sun LC, Lin SC, Xie SY, Huang RB, Zheng LS. From Graphene Sheets to Boron Nitride Nanotubes via a Carbon-Thermal Substitution Reaction. Chem Asian J 2011; 6:1331-4. [DOI: 10.1002/asia.201000839] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Indexed: 11/10/2022]
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Peng L, Ran YL, Hu H, Yu L, Liu Q, Zhou Z, Sun YM, Sun LC, Pan J, Sun LX, Zhao P, Yang ZH. Secreted LOXL2 is a novel therapeutic target that promotes gastric cancer metastasis via the Src/FAK pathway. Carcinogenesis 2009; 30:1660-9. [PMID: 19625348 DOI: 10.1093/carcin/bgp178] [Citation(s) in RCA: 149] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The purpose of this study was to investigate invasion- and metastasis-related genes in gastric cancer. To this end, we used the transwell system to select a highly invasive subcell line from minimally invasive parent cells and compared gene expression in paired cell lines with high- and low-invasive potentials. Lysyl oxidase-like 2 (LOXL2) was overexpressed in the highly invasive subcell line. Immunohistochemical analysis revealed that LOXL2 expression was markedly increased in carcinoma relative to normal epithelia, and this overexpression in primary tumor was significantly associated with depth of tumor invasion, lymph node metastasis and poorer overall survival. Moreover, LOXL2 expression was further increased in lymph node metastases compared with primary cancer tissues. RNA interference-mediated knockdown and ectopic expression of LOXL2 showed that LOXL2 promoted tumor cell invasion in vitro and increased gastric carcinoma metastasis in vivo. Subsequent mechanistic studies showed that LOXL2 could activate both the Snail/E-cadherin and Src kinase/Focal adhesion kinase (Src/FAK) pathways. However, secreted LOXL2 induced gastric tumor cell invasion and metastasis exclusively via the Src/FAK pathway. Expression correlation analysis in gastric carcinoma tissues also revealed that LOXL2 promoted invasion via the Src/FAK pathway but not the Snail/E-cadherin pathway. We then evaluated secreted LOXL2 as a target for gastric carcinoma treatment and found that an antibody against LOXL2 significantly inhibited tumor growth and metastasis. Overall, our data revealed that LOXL2 overexpression, a frequent event in gastric carcinoma progression, contributes to tumor cell invasion and metastasis, and LOXL2 may be a therapeutic target for preventing and treating metastases.
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Affiliation(s)
- Liang Peng
- State Key Laboratory of Molecular Oncology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
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Zhou Z, Ran YL, Hu H, Pan J, Li ZF, Chen LZ, Sun LC, Peng L, Zhao XL, Yu L, Sun LX, Yang ZH. TM4SF3 promotes esophageal carcinoma metastasis via upregulating ADAM12m expression. Clin Exp Metastasis 2008; 25:537-48. [PMID: 18365756 DOI: 10.1007/s10585-008-9168-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Accepted: 03/14/2008] [Indexed: 12/14/2022]
Abstract
Esophageal cancer is characterized by rapid clinical progression and poor prognosis due to adjacent tissue invasion and distant organs metastasis at a very early stage. TM4SF3 (transmembrane 4 superfamily 3), a member of tetraspanin family, has been reported as a metastasis associated gene in many types of tumors. Herein, we described new properties of TM4SF3 in tumor metastasis, which suggested that this gene might be involved in esophageal carcinoma metastasis. Western blotting revealed that TM4SF3 was overexpressed in 57.1% (8/14) of esophageal carcinomas and esophageal carcinoma cell lines with high-invasive potential. Exogenous expression of TM4SF3 in two low-invasive esophageal carcinoma cell lines, KYSE150 and EC9706, significantly promoted cell migration and invasion. Upregulating TM4SF3 expression in EC9706 cells promoted xenograft tumor invading into surrounding tissues, enhanced lung metastasis, and shortened the lifespan of mice (median survival EC9706-TM4SF3 106.5 days versus EC9706-Vector 169.0 days, P < 0.0001) in a spontaneous metastasis model. Further studies demonstrated that ADAM12m was upregulated by TM4SF3 overexpression in vitro and in vivo. Abrogating up-expression of ADAM12m by siRNA significantly suppressed TM4SF3-mediated invasion. Together, these data from our studies indicated that overexpression of TM4SF3 in esophageal cancer conferred advantage to the invasion and metastasis of this destructive disease. Upregulated expression of ADAM12m by TM4SF3 might play a key role in TM4SF3-mediated invasion and metastasis. TM4SF3 and ADAM12m might be potential targets of esophageal carcinoma for anti-metastasis therapy.
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Affiliation(s)
- Zhuan Zhou
- Department of Cell and Molecular Biology, Cancer Institute Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, People's Republic of China
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Hu B, Sun LC, Karmakar M, Cotton PB, Gostout CJ, Hawes RH, Kalloo AN, Kantsevoy SV, Pasricha PJ, Chung SC. Assessing the adequacy of endoscopically tied knots: a functional approach. Endoscopy 2005; 37:415-7. [PMID: 15844018 DOI: 10.1055/s-2005-861197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS Endoscopic intracorporeal knots have potentially enormous applications in endoscopic surgery. We describe a method for testing the security of various types of endoscopically tied knots using a vessel perfusion manometer system. METHODS A 4-cm segment of porcine splenic artery was placed on the mucosal surface of a pig stomach. The two ends of the vessel were brought out through the gastric wall and connected to a two-way manometer. One end was also joined to a pressure infusion bag. The stomach was mounted in an Erlangen training model. A long 3/0 nylon thread, previously introduced into the submucosal layer of the stomach and encircling the vessel, was brought out from the mouth. Three-throw square knots, Mayo knots, "surgeon's" knots and five-throw square knots were tied and pushed into place using a cap attached to a gastroscope. The pressure at the two ends of the artery was compared. If the pressure could be increased to over 200 mm Hg at one end without a change in the other, the knot was considered secure. RESULTS Each type of knot was tested 12 times under endoscopic vision. The range for mean knotting time was 3.4 - 4.5 minutes. Five-throw knots took significantly longer to tie than three-throw knots (P < 0.005). There was one loose knot in each of the three-throw and Mayo groups, and three each in the "surgeon's" and five-throw groups (P > 0.05). CONCLUSIONS This system is a reliable model for testing intracorporeal knots tied endoscopically. A three-half-hitches square knot with 3/0 nylon, tied using a flexible endoscope and knot-tightening cap, can withstand pressure up to 200 mm Hg.
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Affiliation(s)
- B Hu
- Endoscopy Center, Prince of Wales Hospital, The Chinese University of Hong Kong, China
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Hu B, Chung SC, Sun LC, Kawashima K, Yamamoto T, Cotton PB, Gostout CJ, Hawes RH, Kalloo AN, Kantsevoy SV, Pasricha PJ. Transoral obesity surgery: endoluminal gastroplasty with an endoscopic suture device. Endoscopy 2005; 37:411-4. [PMID: 15844017 DOI: 10.1055/s-2005-861196] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS Surgical creation of a small gastric pouch with a restricted outlet is a well-established option for the treatment of morbid obesity. This report describes initial experience with endoscopic transoral stomach partition using a newly designed suturing apparatus. MATERIALS AND METHODS A fresh porcine stomach was placed in the Erlangen model. A prototype suture device, incorporating a curved needle and an intracorporeal tightening mechanism, was used in this procedure. A long fishing line was first introduced into the stomach, with the two ends left outside. The suturing device, premounted outside a standard gastroscope, was inserted into the stomach and delivered several stitches attaching the fishing line to both the anterior and posterior walls along the line for the stomach to be partitioned. Five throws of half-hitches were tied onto the fishing line extracorporeally and separately pushed into place, creating a gastric pouch just below the esophagogastric junction. A flexible sheath of 8 cm long was then put on one side of the fishing line and pushed into the stomach. Additional extracorporeal knots were tied on the fishing line, forming a restrictive ring at the outlet of the pouch. The ring was then anchored to the stomach wall with similar endosutures. RESULTS The proximal gastric pouch, with an estimated volume of approximately 100 ml, was successfully created with a restrictive band at its outlet. All of the stitches were securely sutured, with consistent penetration of the muscular layer of the stomach wall. CONCLUSIONS In a bench model, it is technically possible to accomplish transoral gastroplasty endoscopically with an intraluminal suturing device. Further live animal studies will be needed in order to confirm the efficacy and safety of this procedure before clinical application.
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Affiliation(s)
- B Hu
- Endoscopy Center, Prince of Wales Hospital, Chinese University of Hong Kong, China
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Li CX, Wan YH, Chi SM, Wang G, Sun LC, Zhang YG, Zhao XD, Gao TW, Liu YF. Purification of natural antikeratin autoantibodies from normal human serum and their effect on human keratinocytes cultured in vitro. Br J Dermatol 2001; 145:737-48. [PMID: 11736897 DOI: 10.1046/j.1365-2133.2001.04469.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Antikeratin (AK) autoantibodies, circulating antibodies against epidermal keratins, have been detected in all normal human sera. However, direct evidence on the biological significance of AK autoantibodies is still lacking. OBJECTIVES To purify AK autoantibodies from human serum and to make a preliminary study of their biological effects on human keratinocytes. METHODS We first extracted keratin polypeptides from human stratum corneum and analysed their purity using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). Next, a keratin affinity column was prepared with the extracted keratins, and AK autoantibodies were purified from pooled normal human serum. Antibodies obtained were identified with SDS-PAGE, enzyme-linked immunosorbent assay, immunoperoxidase staining, immunoelectron microscopy and Western blotting. The biological effect of AK autoantibodies on cultured human keratinocytes was studied using a DNA synthesis assay, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) colorimetric determination and cell cycle analysis. RESULTS On average, 1.83 +/- 0.24 mg of antibodies could be purified from 10 mL of pooled human serum. High-titre IgG (about 1 : 70) and low-titre IgM (about 1 : 30) AK autoantibodies were obtained. The DNA synthesis assay and MTT colorimetric determination demonstrated that AK autoantibodies have a significant dose-dependent inhibitory effect on cultured keratinocytes. Correlation coefficients in the two experiments were - 0.583 and - 0.797, respectively. Cell cycle analysis indicated that a small dose of AK autoantibodies leads to inhibition of proliferation of cultured keratinocytes, whereas a large dose of AK autoantibodies causes a visible hypodiploid peak, suggesting apoptosis of keratinocytes. CONCLUSIONS The present research lays a solid foundation for further investigation into the biological significance of natural AK autoantibodies.
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Affiliation(s)
- C X Li
- Department of Dermatology, Xijing Hospital, China.
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Abstract
The gastrointestinal absorption constant (f1) is a critical parameter in assessing systemic uptake following the ingestion of a radioactive material and in monitoring such intakes. This study addresses the latter, particularly for plutonium, and from environmental measurements derives an f1 value of 4 x 10(-4) for the Marshallese population. The uncertainty associated with the methodology and measurements used in this f1 value assessment is evaluated. This evaluation takes into account the results from 24-h urine samples and the particular lifestyle of the Marshallese. Plutonium intake resulting from soil consumption is a primary parameter in this evaluation; for this study, it was assumed to be 500 mg d(-1). The f1 value determined here is consistent with the values in ICRP Publication 67 of 5x10(-4) for ages 1 to adult, and is the same as that suggested by the NRPB.
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Affiliation(s)
- L C Sun
- Department of Advanced Technology, Brookhaven National Laboratory, Upton, NY 11973, USA
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Sun LC, Clinton JH, Kaplan E, Meinhold CB. 137Cs exposure in the Marshallese populations: an assessment based on whole-body counting measurements (1989-1994). Health Phys 1997; 73:86-99. [PMID: 9199220 DOI: 10.1097/00004032-199707000-00007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The Marshall Islands were the site of numerous tests of nuclear weapons by the United States. From 1946 to 1958, nuclear devices were detonated at Enewetak and Bikini Atolls. Following the inadvertent contamination of the northern islands downwind of the 1954 Bravo Test, Brookhaven National Laboratory became involved in the medical care and the radiological safety of the affected populations. One important technique employed in assessing the internally deposited radionuclides is whole-body counting. To estimate current and future exposures to 137Cs, data from 1989 to 1994 were analyzed and are reported in this paper. During this period, 3,618 measurements were made for the Marshallese. The cesium body contents were assumed to result from a series of chronic intakes. Also, it was assumed that cesium activity in the body reaches a plateau that is maintained over 365 d. We estimated the annual effective dose rate for each population, derived from the recommendations of the International Commission on Radiological Protection. The average 137Cs uptake measured by the whole-body counting method varies from one population to another; it was consistent with measurements of external exposure rate. The analysis, though based on limited data, indicates that there is no statistical support for a seasonal effect on 137Cs uptake. The critical population group for cesium uptake is adult males. Within the 5-y monitoring period, all internal exposures to 137Cs were less than 0.2 mSv y(-1). Similarly, a persistent average cesium effective dose rate of 2 microSv y(-1) was determined for Majuro residents.
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Affiliation(s)
- L C Sun
- Department of Advanced Technology, Brookhaven National Laboratory, Upton, NY 11973, USA
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Abstract
Since 1980, the inhabitants of Enewetak Atoll have been monitored periodically by scientists from Brookhaven National Laboratory for internally deposited radioactive material. In 1989, the establishment of fission track analysis and of a protocol for shipboard collection of 24-h urine samples significantly improved our ability to assess the internal uptake of plutonium. The purpose of this report is to show the distribution of plutonium concentrations in urine collected in 1989 and 1991, and to assess the associated committed effective doses for the Enewetak population based on a long-term chronic uptake of low-level plutonium. To estimate dose, we derived the plutonium dose-per-unit-uptake coefficients based on the dosimetric system of the International Commission on Radiological Protection. Assuming a continuous uptake, an integrated Jones's plutonium urine excretion function was developed to interpret the Enewetak urine data. The Appendix shows how these values were derived. The committed effective doses were 0.2 mSv, calculated from the 1991 average plutonium content in 69 urine samples.
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Affiliation(s)
- L C Sun
- Department of Advanced Technology, Brookhaven National Laboratory, Upton, NY 11973, USA
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Sun LC, Moorthy AR, Kaplan E, Baum JW, Meinhold CB. Assessment of plutonium exposures in Rongelap and Utirik populations by fission track analysis of urine. Appl Radiat Isot 1995; 46:1259-69. [PMID: 8535424 DOI: 10.1016/0969-8043(95)00169-e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A nuclear device, code-named Bravo, detonated at Bikini Atoll at 6:45 a.m. on 1 March 1954, unexpectedly released a large amount of radioactivity. Over 40 years after this incident, the study of its impact on the radiological health and environmental safety of the residents of Rongelap and Utirik Atolls continues. In 1987, researchers at Brookhaven National Laboratory established a fission track analysis (FTA) method for low-level 239Pu urinalysis. Two years later, a new shipboard protocol was developed for collecting 24-h radiologically clean urine samples. The purpose of this paper is to update information on the FTA method for measuring low-levels of plutonium, and to summarize results on the distribution of 239Pu in the populations of Rongelap and Utirik between 1981-1991. Plutonium detection levels (99% confidence level) in these samples were 2-3 microBq, which is equivalent to 0.2-0.3 mSv effective dose equivalent (EDE) to age 70 for Marshallese. The latest 1991 FTA data indicate average EDE of 0.62 mSv and 1.6 mSv for the people of Rongelap and Utirik, respectively, which both are the highest values since 1988.
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Affiliation(s)
- L C Sun
- Department of Advanced Technology, Brookhaven National Laboratory, Upton, NY 11973, USA
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