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Chen X, Li LQ, Qiu X, Wu H. Long non-coding RNA HOXB-AS1 promotes proliferation, migration and invasion of glioblastoma cells via HOXB-AS1/miR-885-3p/HOXB2 axis. Neoplasma 2019; 66:386-396. [DOI: 10.4149/neo_2018_180606n377] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 11/20/2018] [Indexed: 11/08/2022]
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Qiu X, Tang Y, Yue Y, Zeng Y, Li W, Qu Y, Mu D. Accuracy of interferon-γ-induced protein 10 for diagnosing latent tuberculosis infection: a systematic review and meta-analysis. Clin Microbiol Infect 2018; 25:667-672. [PMID: 30553864 DOI: 10.1016/j.cmi.2018.12.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 12/02/2018] [Accepted: 12/05/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Effective diagnostic methods for detecting latent tuberculosis infection (LTBI) are important for its eradication. A number of studies have evaluated the use of interferon-γ-induced protein 10 (IP-10), which is elevated after tuberculosis infection, as a biomarker for LTBI, but conclusive results regarding its effectiveness have not been reported. OBJECTIVES Our objective was to assess the diagnostic value of IP-10 for LTBI. DATA SOURCES We searched the PubMed, Embase, the Cochrane Library and Web of Science databases to find eligible studies. STUDY ELIGIBILITY CRITERIA We included cohort, case-control and cross-sectional studies that evaluated IP-10 in LTBI participants in comparison with tuberculin skin tests (TST) and interferon-γ release assays (IGRA). PARTICIPANTS Individuals with LTBI and uninfected participants. INTERVENTIONS IP-10 (index test) compared with TST and IGRA (reference standard) for diagnosing LTBI. METHODS PubMed, Embase, the Cochrane Library, and Web of Science databases were searched up to June 2018. A hierarchical summary receiver operating characteristic (HSROC) model was used to evaluate the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio (DOR), and HSROC curve for the diagnostic efficiency of IP-10. RESULTS Twelve studies including 1023 participants and 1122 samples were included. The overall pooled sensitivity was 0.85 (95% CI 0.80-0.88), specificity was 0.89 (95% CI 0.84-0.92), PLR was 7.55 (95% CI 5.20-10.97), NLR was 0.17 (95% CI 0.13-0.22) and DOR was 44.23 (95% CI 28.86-67.79), indicating a high accuracy for diagnosing LTBI. Based on a meta-regression analysis, high-burden countries, study design, IP-10 method, reference standard and the IP-10 cut-off could not explain the heterogeneity (p >0.05). CONCLUSIONS Our results suggested that IP-10 is a promising biomarker for the diagnosis of LTBI.
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Zhao Y, Wang N, Wen P, Ouyang WB, Zhang FW, Qiu X, Liu Y, Zhao GZ, Xie YQ, Pan XB. [Safety and efficacy of percutaneous intervention for children with combined congenital heart abnormality solely guided by transthoracic echocardiography]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2018; 46:804-809. [PMID: 30369172 DOI: 10.3760/cma.j.issn.0253-3758.2018.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the safety and efficacy of percutaneous intervention of children with combined congenital heart abnormality solely guided by transthoracic echocardiography (TTE) . Methods: From September 2015 to June 2017, 21 children with combined congenital heart abnormality undergoing percutaneous interventional guided by TTE in Fuwai hospital were enrolled in our study, and the clinical data were retrospective analyzed. The atrial septal defect(ASD) closure, ventricular septal defect(VSD) closure, patent ductus arteriosus(PDA) closure or balloon pulmonary valvuloplasty were performed under the guidance of TTE. The procedural effect was evaluated by TTE after operation. The patients were followed up after discharged from the hospital. Results: The age was (37.3±11.6) months, and there were 9 male and 12 female patients. There were 4 cases with ASD and VSD, 6 cases with VSD and PDA, 6 cases with ASD and PDA, 2 cases with VSD and pulmonary stenosis, 3 cases with ASD and pulmonary stenosis. The operations were successfully performed in all patients. No one required extra X ray guidance or open heart surgery. The operation time was (44.6±7.5)min. All patients did not require blood transfusion, inotropic support, and analgesia. There were no complications such as peripheral vascular injury and pericardialeffusion after the operation. The length of hospital stay time was (3.5±0.6) days. All patients were recovered well. The follow-up was (17.6±5.2) months, and post-procedural conduction disturbances, residual shunts, occlude fall off, thrombosis, and new onset of valvular regurgitation were not observed in these patients. Conclusion: Percutaneous interventional of children with combined congenital heart abnormality solely guided by TTE is safe and effective, and the procedure can avoid the potential injuries of X ray and contrast agent.
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Huang Y, Chen C, Li Y, Qiu X, Chen T. Significance of pre-treatment F-18 FDG PET/CT parameters in nasopharyngeal carcinoma treated with intensity-modulated radiation therapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhang J, Chen N, Qiu X. P3.CR-37 Extensive Resection for Invasive Atypical Carcinoid of Thymus: 1 Case Report. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.2016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang J, Chen N, Qiu X. P3.CR-24 Surgical Resection of 30 Years’ Recurring Pneumonia: 1 Case of Giant Bronchopulmonary Sequestration. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.2003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wang Y, Qiu X, Zheng J. Effect of the sheet size on the thermal stability of silicone rubber-reduced graphene oxide nanocomposites. J Appl Polym Sci 2018. [DOI: 10.1002/app.47034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang J, Moore D, Subramanian A, Cheng KK, Toulis KA, Qiu X, Saravanan P, Price MJ, Nirantharakumar K. Gestational dyslipidaemia and adverse birthweight outcomes: a systematic review and meta-analysis. Obes Rev 2018; 19:1256-1268. [PMID: 29786159 DOI: 10.1111/obr.12693] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/30/2018] [Accepted: 02/26/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Low and high birthweight is known to increase the risk of acute and longer-term adverse outcomes, such as stillbirth, infant mortality, obesity, type 2 diabetes and cardiovascular diseases. Gestational dyslipidaemia is associated with a numbers of adverse birth outcomes, but evidence regarding birthweight is still inconsistent to reliably inform clinical practice and treatment recommendations. OBJECTIVE The aim of this study was to explore the relationship between maternal gestational dyslipidaemia and neonatal health outcomes, namely, birthweight, metabolic factors and inflammatory parameters. METHODS We searched systematically Embase, MEDLINE, PubMed, CINAHL Plus and Cochrane Library up to 1 August 2016 (with an updated search in MEDLINE at the end of July 2017) for longitudinal studies that assessed the association of maternal lipid levels during pregnancy with neonatal birthweight, or metabolic and inflammatory parameters up to 3 years old. RESULTS Data from 46 publications including 31,402 pregnancies suggest that maternal high triglycerides and low high-density-lipoprotein cholesterol levels throughout pregnancy are associated with increased birthweight, higher risk of large for gestational age and macrosomia and lower risk of small-for-gestational age. The findings were consistent across the studied populations, but stronger associations were observed in women who were overweight or obese prior to pregnancy. CONCLUSIONS This meta-analysis suggested that the potential under-recognized adverse effects of intrauterine exposure to maternal dyslipidaemia may warrant further investigation into the relationship between maternal dyslipidaemia and birthweight in large prospective cohorts or in randomized trials.
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Chu Y, Li D, Zhang H, Ding J, Xu P, Qiu X, Zhang H. PIG3 suppresses gastric cancer proliferation by regulating p53- mediated apoptosis. J BIOL REG HOMEOS AG 2018; 32:1185-1189. [PMID: 30334411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Gastric cancer (GC), the third leading cause of cancer mortality and the fifth most common cancer in the world, still is an important health problem worldwide. P53-inducible gene 3 (PIG3) was initially isolated in an investigation to identify the genes that were induced by p53 in human colorectal cancer cells. PIG3 can also regulate the stability of p53 through suppressing the process of the MDM2-mediated ubiquitination of p53. The aim of this study is to explore the expression level of PIG3 in human GC and further investigate the function and mechanism of PIG3 in human GC. Five cell lines and 30 matched GC tissue samples and adjacent tissue samples were used for this study, and MTT assay, colony formation assay, flow cytometry analysis and Western blot were carried out. Expression of PIG3 was found to be frequently reduced in GC. Restoration of the expression of PIG3 inhibited cell proliferation, induced cell apoptosis and further activated P53 signaling in BGC823 cells. In conclusion, we demonstrated that expression of PIG3 is frequently reduced in GC tissue, and PIG3 suppressed human GC growth through p53- mediated apoptosis. PIG3 may act as a potential diagnostic marker and a potential therapeutic target of GC.
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Qiu X, Wang HT. [Safety and efficacy of omalizumab for the treatment of allergic rhinitis:Meta-analysis of randomized clinical trials]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2018; 30:694-698. [PMID: 29771015 DOI: 10.13201/j.issn.1001-1781.2016.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Indexed: 11/12/2022]
Abstract
Objective:To assess the efficacy and safety of omalizumab in patients with allergic rhinitis(AR) in a meta-analysis of clinical trial results, and provide evidence for the clinical treatment of AR.Method:Pubmed, Medline, Cochrane and Embase were searched through August 2014 using the terms 'allergic rhinitis, omalizumab, efficacy, safety, and randomized controlled trial(RCT)'without language restriction. Relevant reviews, publications, and abstracts of meetings were also retrieved. RevMan5.3 software was used for meta-analysis after data extraction. Result: Nine RCTs were included(n =1764).Of the 1764 participants,859 patients were treated by omalizumab and the other 905 received a placebo.The meta-analysis revealed that patients treated with omalizumab had significantly reduced total and individual symptoms scorescompared with the placebo group(P <0.05). And there was no significantly differences in adverse events between placebo and omalizumab(P <0.05).The WMD rate and 95%CI were as follows:total nasal symptom scores(0.04, - 0.10 to 0.19), rhinorrhea(-0.32, -0.44 to -0.21), nasal stuffiness(-0.33,-0.38 to -0.27), nasal itching (-0.08,-0.25 to 0.09), and sneezing(-0.24, -0.27 to -0.21), and non-nasal symptoms scores(0.30,0.04 to 0.55).Conclusion:Compared to the placebo,omalizumab can effectively and safely reduce symptoms scores of patients with AR.
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Zhao B, Chen Y, Hao Y, Yang N, Wang M, Mei M, Wang J, Qiu X, Wu X. Transcriptomic analysis reveals differentially expressed genes associated with wool length in rabbit. Anim Genet 2018; 49:428-437. [DOI: 10.1111/age.12701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/28/2018] [Indexed: 12/24/2022]
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Zhang B, Li C, Bao W, Li Y, Tian S, Qiu X, Bai Y. Exercise brings balance of glucose metabolism to bilateral motor pathways in cerebral ischemic rat: A preliminary study using micropet. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu BY, Yang L, Wang BJ, Wang ZH, Cheng LL, Xie H, Qiu X, Ma ZJ, Zhao DW. [Prevention for glucocorticoid-induced osteonecrosis of femoral head: a long-term clinical follow-up trail]. ZHONGHUA YI XUE ZA ZHI 2018; 97:3213-3218. [PMID: 29141357 DOI: 10.3760/cma.j.issn.0376-2491.2017.41.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluated the outcome of prevention and treatment for glucocorticoid-induced osteonecrosis of femoral head with anticoagulant and vasodilator drugs. Methods: A prospective, randomized, double-blind study was performed. From August 2003 to August 2006, 58 patients with large amounts of hormone therapy in the Zhongshan Hospital Affiliated Dalian University were enrolled and randomly assigned to the control group (placebo) or preventive group (anticoagulant and vasodilator drugs). And we prospectively analyzed the clinical outcomes of 24 patients with glucocorticoid-induced osteonecrosis of femoral head early stage (treatment group)treated by anticoagulant and vasodilator drugsat the same time. Disease incidence rate and progression were evaluated by radiography and magnetic resonance imaging (MRI), Follow-up of patients with femoral head survival curve was drawn. The Harris Hip Score and the Short Form 36 health survey were used to rate hip function and quality of life, respectively. Results: Thus, a total of 80 patients were assessed in this study, 24 cases in control group[follow up from 7.5 to 13.0(10.7±1.6)years], 22 cases in preventive group and 24 cases in treatment group. There was significant difference in theincidence rate of Osteonecrosis of femoral head, survive rate of femoral head and HHS score between the control groupand preventive group(41.7% vs 13.6%, 66.7% vs 70.8% , P<0.01). Conclusion: Anticoagulant and vasodilator drugs could effect on preventing theglucocorticoid-induced osteonecrosis of femoral head, reducing disease progression, or improving life quality.
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Tan X, Chen C, Zhu Y, Deng J, Qiu X, Huang S, Shang F, Cheng B, Liu Y. Proteotoxic Stress Desensitizes TGF-beta Signaling Through Receptor Downregulation in Retinal Pigment Epithelial Cells. Curr Mol Med 2018. [PMID: 28625142 PMCID: PMC5688417 DOI: 10.2174/1566524017666170619113435] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Proteotoxic stress and transforming growth factor (TGFβ)-induced epithelial-mesenchymal transition (EMT) are two main contributors of intraocular fibrotic disorders, including proliferative vitreoretinopathy (PVR) and proliferative diabetic retinopathy (PDR). However, how these two factors communicate with each other is not well-characterized. Objective: The aim was to investigate the regulatory role of proteotoxic stress on TGFβ signaling in retinal pigment epithelium. Methods: ARPE-19 cells and primary human retinal pigment epithelial (RPE) cells were treated with proteasome inhibitor MG132 and TGFβ. Cell proliferation was analyzed by CCK-8 assay. The levels of mesenchymal markers α-SMA, fibronectin, and vimentin were analyzed by real-time polymerase chain reaction (PCR), western blot, and immunofluorescence. Cell migration was analyzed by scratch wound assay. The levels of p-Smad2, total Smad2, p-extracellular signal-regulated kinase 1/2 (ERK1/2), total ERK1/2, p-focal adhesion kinase (FAK), and total FAK were analyzed by western blot. The mRNA and protein levels of TGFβ receptor-II (TGFβR-II) were measured by real-time PCR and western blot, respectively. Results: MG132-induced proteotoxic stress resulted in reduced cell proliferation. MG132 significantly suppressed TGFβ-induced upregulation of α-SMA, fibronectin, and vimentin, as well as TGFβ-induced cell migration. The phosphorylation levels of Smad2, ERK1/2, and FAK were also suppressed by MG132. Additionally, the mRNA level and protein level of TGFβR-II decreased upon MG132 treatment. Conclusion: Proteotoxic stress suppressed TGFβ-induced EMT through downregulation of TGFβR-II and subsequent blockade of Smad2, ERK1/2, and FAK activation.
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Liu D, Tian K, Yuan Y, Li M, Zheng M, Qiu X. Prokaryotic functional expression and activity comparison of three CYP9A genes from the polyphagous pest Helicoverpa armigera. BULLETIN OF ENTOMOLOGICAL RESEARCH 2018; 108:77-83. [PMID: 28578718 DOI: 10.1017/s0007485317000517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cytochrome P450s (CYPs or P450s) have been long recognized as very important enzymes in the metabolism of xenobiotic and endogenous compounds, but only a few CYPs have been functionally characterized in insects. The effort in functional characterization of insect P450s is heavily hindered by technical difficulties in preparing active, individual P450 enzymes directly from the target insect. In this paper, we describe the functional expression of two additional pyrethroid resistance-associated CYP9A genes (CYP9A12 and CYP9A17) from the polyphagous pest Helicoverpa armigera in the facile Escherichia coli. The functionality of E. coli produced CYP9A12, CYP9A14, and CYP9A17 was investigated and activities of these CYP9As were compared against three probe substrates after reconstitution with NADPH-dependent cytochrome P450 reductase. The results showed that active forms of CYP9A12 and CYP9A17 were expressed in E. coli with a content of about 1.0-1.5 nmol mg-1 protein in membrane preparations. In vitro assays showed that CYP9A14 was capable of catalyzing O-dealkylation of methoxyresorufin (MROD), ethoxyresorufin (EROD), and benzyloxyresorufin (BROD), while CYP9A12 and CYP9A17 exhibited only MROD and EROD activities. Kinetic studies demonstrated that CYP9A14 had the greatest k cat/K m value for MROD, and CYP9A17 for EROD, while the lowest k cat/K m values for both MROD and EROD were observed for CYP9A12. The distinct biochemical traits suggest that the three paralogous CYP9As may play different roles in xenobiotic metabolism in this important pest.
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Lopez DS, Qiu X, Advani S, Tsilidis KK, Khera M, Kim J, Morgentaler A, Wang R, Canfield S. Double trouble: Co-occurrence of testosterone deficiency and body fatness associated with all-cause mortality in US men. Clin Endocrinol (Oxf) 2018; 88:58-65. [PMID: 29067698 DOI: 10.1111/cen.13501] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/10/2017] [Accepted: 10/16/2017] [Indexed: 01/04/2023]
Abstract
BACKGROUND Testosterone deficiency (TD, total testosterone ≤350 ng/dL [12.15 nmol L-1 ]) and obesity epidemic are growing in parallel in the United States. Yet, the sequelae of TD and obesity on the risk of mortality remain unclear. OBJECTIVE To investigate whether the co-occurrence of TD and overall obesity (body mass index ≥30 kg/m2 ), and abdominal obesity (waist circumference ≥102 cm), is associated with a risk of all-cause mortality in American men. DESIGN The data were obtained from the NHANES 1999-2004 and the Linked Mortality File (December 31, 2011). A total of 948 participants aged ≥20 years old with endogenous sex hormones and adiposity measurements data were included in this study. RESULTS Over a median of 9.5 years of follow-up, 142 men died of any cause in this cohort. Multivariable analysis showed a 2.60 fold increased risk of death among men with TD compared with men without TD (Hazard Ratio [HR] = 2.60; 95% confidence interval [CI] = 1.20-5.80). No evidence for interaction between TD and overall or abdominal obesity with risk of death (Pinteraction ≥ .80). However, only after comparing men with TD and abdominal obesity with men without TD and no abdominal obesity, we found a 3.30 fold increased risk of death (HR = 3.30, 95% CI = 1.21-8.71). CONCLUSION Men with co-occurrence of TD and abdominal obesity have a higher risk of mortality. The effect of co-occurrence of TD and abdominal obesity should be further explored with a larger and longer follow-up time study.
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Zhang J, Chen N, Qiu X. P2.05-015 Wedge Resection Is Enough for Curing GGO Patients with Minimally Invasive Adenocarcinoma (MIA) of the Lung? J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cao Y, Qiu X, Xiao G, Hao H. Effectiveness and safety of osimertinib in patients with metastatic EGFR T790M-positive NSCLC: An observational real-world study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Huang L, Qiu X. Sandwich Protocol with a Very Low Initial Dose of Radiation in MRI-Diagnosed Bifocal Intracranial Germinoma Patients. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li Y, Sun H, Zhang C, Liu J, Zhang H, Fan F, Everley RA, Ning X, Sun Y, Hu J, Liu J, Zhang J, Ye W, Qiu X, Dai S, Liu B, Xu H, Fu S, Gygi SP, Zhou C. Identification of translationally controlled tumor protein in promotion of DNA homologous recombination repair in cancer cells by affinity proteomics. Oncogene 2017; 36:6839-6849. [PMID: 28846114 PMCID: PMC5735297 DOI: 10.1038/onc.2017.289] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 06/09/2017] [Accepted: 07/13/2017] [Indexed: 01/21/2023]
Abstract
Translationally controlled tumor protein(TCTP) has been implicated in the regulation of apoptosis, DNA repair and drug resistance. However, the underlying molecular mechanisms are poorly defined. To better understand the molecular mechanisms underlying TCTP involved in cellular processes, we performed an affinity purification-based proteomic profiling to identify proteins interacting with TCTP in human cervical cancer HeLa cells. We found that a group of proteins involved in DNA repair are enriched in the potential TCTP interactome. Silencing TCTP by short hairpin RNA in breast carcinoma MCF-7 cells leads to the declined repair efficiency for DNA double-strand breaks on the GFP-Pem1 reporter gene by homologous recombination, the persistent activation and the prolonged retention of γH2AX and Rad51 foci following ionizing radiation. Reciprocal immunoprecipitations indicated that TCTP forms complexes with Rad51 in vivo, and the stability maintenance of Rad51 requires TCTP in MCF-7 cells under normal cell culture conditions. Moreover, inactivation of TCTP by sertraline treatment enhances UVC irradiation-induced apoptosis in MCF-7 cells, and causes sensitization to DNA-damaging drug etoposide and DNA repair inhibitor olaparib. Thus, we have identified an important role of TCTP in promoting DNA double-stand break repair via facilitating DNA homologous recombination processes and highlighted the great potential of TCTP as a drug target to enhance conventional chemotherapy for cancer patients with high levels of TCTP expression.
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Qiu X, Lü B, Xu N, Yan CW, Ouyang WB, Liu Y, Zhang FW, Yue ZQ, Pang KJ, Pan XB. [Feasibility of device closure for multiple atrial septal defects using 3D printing and ultrasound-guided intervention technique]. ZHONGHUA YI XUE ZA ZHI 2017; 97:1214-1217. [PMID: 28441847 DOI: 10.3760/cma.j.issn.0376-2491.2017.16.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility of trans-catheter closure of multiple atrial septal defects (ASD) monitored by trans-thoracic echocardiography (TTE) under the guidance of 3D printing heart model. Methods: Between April and August 2016, a total of 21 patients (8 male and 13 female) with multiple ASD in Fuwai Hospital of Chinese Academy of Medical Sciences underwent CT scan and 3-dimensional echocardiography for heart disease model produced by 3D printing technique. The best occlusion program was determined through the simulation test on the model. Percutaneous device closure of multiple ASD was performed follow the predetermined program guided by TTE. Clinical follow-up including electrocardiogram and TTE was arranged at 1 month after the procedure. Results: The trans-catheter procedure was successful in all 21 patients using a single atrial septal occluder. Mild residual shunt was found in 5 patient in the immediate postoperative period, 3 of them were disappeared during postoperative follow-up. There was no death, vascular damage, arrhythmia, device migration, thromboembolism, valvular dysfunction during the follow-up period. Conclusion: The use of 3D printing heart model provides a useful reference for transcatheter device closure of multiple ASD achieving through ultrasound-guided intervention technique, which appears to be safe and feasible with good outcomes of short-term follow-up.
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Bose N, Gorden K, Chan A, Bykowski AJ, Ottoson N, Walsh D, Qiu X, Harrison B, Kangas T, Fraser K, Fulton R, Leonardo S, Uhlik M, Graff J. Abstract B29: Innate immune modulation: The novel immunotherapeutic Imprime PGG triggers the anti-cancer immunity cycle in concert with tumor-targeting, anti-angiogenic and checkpoint inhibitor antibodies. Cancer Immunol Res 2017. [DOI: 10.1158/2326-6074.tumimm16-b29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Cancer immunotherapeutics largely focus on awakening T cell mediated recognition and eradication of tumor cells. Indeed, checkpoint inhibitor antibodies (e.g. pembrolizumab) unleash T cells already involved in anti-cancer responses and have shown remarkable clinical activity, though only in ~20-30% of solid tumor patients. Numerous approaches are being explored to enhance the percent of patients who benefit from checkpoint inhibitor therapies. Chief amongst these are the innate immune modulating therapies collectively designated as PAMPs- pathogen- associated molecular patterns. PAMPs operate as the critical non-self signals that, in response to pathogen infection, ignite the function of the innate immune system to trigger the immunity cycle. TLR and STING agonists acts as PAMPs and reflect bacterial and viral danger signals that can drive dendritic cell maturation, enhancing T cell function. These agents are in development in combination with other immunotherapies, including checkpoint inhibitors, but inspire intolerable cytokine storms and are thereby limited to direct intra-tumoral delivery approaches. We therefore sought to discover and develop a novel, systemically administered PAMP- Imprime PGG (Imprime). Ex vivo studies with whole blood from healthy human donors show that Imprime consistently elicits the activation of innate immune cells. M2 state macrophages repolarize, showing increased expression of M1 markers (CD86, PD-L1) with coincident reduction in M2 markers (CD163, CD206). Dendritic cells (DCs) mature, showing enhanced surface expression of CD80, CD86 and MHC class II. Functionally, the antigen presentation capability of these re-polarized macrophages and activated DCs is substantially enhanced and drives the robust expansion of co-cultured CD8 T cells as well as the marked upregulation of the potent anti-tumor cytokine interferon gamma. In preclinical tumor studies, Imprime is administered IV and profoundly enhances the efficacy of numerous antibody therapies. Using the B16 experimental metastasis model, we show that Imprime (administered IV) synergizes with the anti-TRP1 tumor-targeting antibody TA-99, nearly eradicating B16 metastases as measured by visual counts, TRP-1 RT-PCR and in situ immunofluorescence for TRP1. In the H441 and H1299 non-small cell lung cancer xenografts, Imprime synergizes with the anti-VEGFR2 antibody DC101 to flat-line tumor growth. In the MC-38, CT-26 and 4T-1 syngeneic tumor models, Imprime synergizes with both anti-PD-1 and PD-L1 checkpoint inhibitor antibodies to repress tumor growth and/or to eradicate cancer lesions. In situ imaging of these preclinical tumor tissues repeatedly shows that Imprime instigates a re-orientation of the immune microenvironment, promoting an M1 state (e.g. increased iNOS2, decreased Arginase 1), as well as the influx of myeloid cells and, in the syngenic models, CD8 T cells. In clinical trials in > 400 total patients to date, Imprime has been safely administered by IV infusion (4mg/kg over 2 hours) and has repeatedly shown evidence for efficacy in combination with tumor targeting or anti-angiogenic antibodies. Studies with checkpoint inhibitor antibodies are slated to begin summer of 2016. We now provide the first evidence in healthy human volunteers that Imprime (IV- 4mg/kg, 2 hours) drives the same innate immune activation events evident in the preclinical studies (e.g. chemokine and cytokine release, PD-L1 and CD86 upregulation) verifying that the clinical dose activates the innate immune system. Together, these preclinical and clinical studies provide evidence that the novel PAMP, Imprime PGG, can be safely administered systemically and can drive the critical innate immune activation necessary to spark the anti-cancer immunity cycle.
Citation Format: N Bose, K Gorden, A Chan, A Jonas Bykowski, N Ottoson, D Walsh, X Qiu, B Harrison, T Kangas, K Fraser, R Fulton, S Leonardo, M Uhlik, J Graff. Innate immune modulation: The novel immunotherapeutic Imprime PGG triggers the anti-cancer immunity cycle in concert with tumor-targeting, anti-angiogenic and checkpoint inhibitor antibodies. [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2016 Oct 20-23; Boston, MA. Philadelphia (PA): AACR; Cancer Immunol Res 2017;5(3 Suppl):Abstract nr B29.
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Fausther-Bovendo H, Qiu X, McCorrister S, Westmacott G, Sandstrom P, Castilletti C, Di Caro A, Ippolito G, Kobinger GP. Ebola virus infection induces autoimmunity against dsDNA and HSP60. Sci Rep 2017; 7:42147. [PMID: 28181533 PMCID: PMC5299614 DOI: 10.1038/srep42147] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/05/2017] [Indexed: 11/15/2022] Open
Abstract
Ebola virus (EBOV) survivors are affected by a variety of serious illnesses of unknown origin for years after viral clearance from the circulation. Identifying the causes of these persistent illnesses is paramount to develop appropriate therapeutic protocols. In this study, using mouse and non-human primates which survived EBOV challenge, ELISA, western blot, mass spectrometry and flow cytometry were used to screen for autoantibodies, identify their main targets, investigate the mechanism behind their induction and monitor autoantibodies accumulation in various tissues. In infected mice and NHP, polyclonal B cell activation and autoantigens secretion induced autoantibodies against dsDNA and heat shock protein 60 as well as antibody accumulation in tissues associated with long-term clinical manifestations in humans. Finally, the presence of these autoantibodies was confirmed in human EBOV survivors. Overall, this study supports the concept that autoimmunity is a causative parameter that contributes to the various illnesses observed in EBOV survivors.
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Zheng J, Tian K, Yuan Y, Li M, Qiu X. Identification and expression patterns of Halloween genes encoding cytochrome P450s involved in ecdysteroid biosynthesis in the cotton bollworm Helicoverpa armigera. BULLETIN OF ENTOMOLOGICAL RESEARCH 2017; 107:85-95. [PMID: 27545316 DOI: 10.1017/s0007485316000663] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
20-Hydroxyecdysone (20E) is a key hormone which regulates growth, development and reproduction in insects. Although cytochrome P450 enzymes (P450s) participating in the ecdysteroid biosynthesis of 20E have been characterized in a few model insects, no work has been published on the molecular entity of their orthologs in the cotton bollworm Helicoverpa armigera, a major pest insect in agriculture worldwide. In this study, four cytochrome P450 homologs, namely HarmCYP302A1, HarmCYP306A1, HarmCYP314A1 and HarmCYP315A1 from H. armigera, were identified and evolutional conservation of these Halloween genes were revealed among lepidopteran. Expression analyses showed that HarmCYP302A1 and HarmCYP315A1 were predominantly expressed in larval prothoracic glands, whereas this predominance was not always observed for HarmCYP306A1 and CYP314A1. The expression patterns of Halloween genes indicate that the fat bodies may play an important role in the conversion of ecdysone into 20E in larval-larval molt and in larval-pupal metamorphosis, and raise the possibility that HarmCYP315A1 plays a role in tissue-specific regulation in the steroid biosynthesis in H. armigera. These findings represent the first identification and expression characterization of four steriodogenic P450 genes and provide the groundwork for future functional and evolutionary study of steroid biosynthesis in this agriculturally important pest.
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Bai Y, Ao YY, Xu C, Qiu X, Zhang Y, Wang HT. [The preliminary analysis of chronic rhinosinusitis: clinical phenotypes and inflammation features]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2017; 31:107-110. [PMID: 29871198 DOI: 10.13201/j.issn.1001-1781.2017.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Indexed: 11/12/2022]
Abstract
Objective:To explore the clinical phenotypes and inflammatory features of chronic rhinosinusitis in the liminary study.Method:Twenty-five patients suffered with chronic rhinosinusitis and nasal polyps (CRSwNP) and 23 patients suffered with chronic rhinosinusitis without nasal polyps (CRSsNP) were enrolled in our study. Analysis was made in clinical features of the two types, including symptoms with VAS score, nasal endoscopy with Lanza-Kennedy score,and nasal sinus CT with Lund-Mackay score. Eosinophil and neutrophil distribution of lesions in the two groups were compared, inflammatory markers expression of interleukin (IL-5), interleukin-17(IL-17) and interferon gamma (IFN-γ) were assessed.Result:The VAS score of nasal obstruction, nasal endoscopic score and CT score were significantly higher in patients with CRSwNP than that in patients with CRSsNP (P< 0.05). HE staining showed that the lesions in patients with type two were infiltrated by mixed inflammatory cells. 41% (10 cases) out of patients with CRSwNP were mainly with eosinophils infiltration and 59% (15 cases) with neutrophil infiltration. 78%(18 cases) out of patients with CRSsNP were with eosinophilic infiltration and 22% (5 cases) with neutrophil infiltration. The expression of inflammatory factors IL-5, IL-17 and IFN in patients with CRSwNP was significantly increased compared with that in patients with CRSsNP (P< 0.05).Conclusion:The clinical manifestation and the degree of inflammation of patients with CRSwNP are more severe than that of patients with CRSsNP. Lesions in both groups are infiltrated by mixed inflammatory cells.
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