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Huo L, Chu C, Jiang X, Zheng S, Zhang P, Zhou R, Chen N, Guo J, Qiu B, Liu H. A Pilot Trial of Consolidation Bevacizumab after Hypo-Fractionated Concurrent Chemoradiotherapy in Patients with Unresectable Locally Advanced Non-Squamous Non-Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e38. [PMID: 37785285 DOI: 10.1016/j.ijrobp.2023.06.731] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To assess the feasibility of adding bevacizumab consolidation into hypo-fractionated concurrent chemoradiotherapy (hypo-CCRT) in patients with unresectable locally advanced non-squamous non-small cell lung cancer (LA-NS-NSCLC). MATERIALS/METHODS Eligible patients were treated with hypo-RT (40 Gy in 10 fractions) followed by hypo-boost (24-28 Gy in 6-7 fractions) combined with concurrent weekly chemotherapy. Patients completed the hypo-CCRT without≥G2 toxicities then received consolidation bevacizumab every 3 weeks for up to 1 year, or disease progression or unacceptable treatment related toxicities. The primary endpoint was the risk of G4 or higher hemorrhage. The secondary endpoint was progression-free survival (PFS), overall survival (OS), locoregional failure-free survival (LRFS), distant metastasis-free survival (DMFS) and objective response rate (ORR). All time-to-event endpoints (OS, PFS, LRFS and DMFS) were measured from the start of radiotherapy. RESULTS From December 2017 to July 2020, a total of 27 patients were analyzed with a median follow-up duration of 28.0 months. One patient (3.7%) developed G5 hemorrhage during bevacizumab consolidation. Besides, there were 7 patients (25.9%) had G3 cough and 3 patients (11.1%) had G3 pneumonitis. The ORR was 92.6% of the whole cohort. The median OS was 37.0 months (95% confidence interval, 8.9-65.1 months), the median PFS was 16.0 months (95% confidence interval, 14.0-18.0 months), the median LRFS was not reached and the median DMFS was 18.0 months. CONCLUSION This pilot study met its goal of demonstrating the tolerability of consolidation bevacizumab after hypo-CCRT. Further investigation of antiangiogenic and immunotherapy combinations in LA-NSCLC is warranted while G3 respiratory toxicities is worth considering.
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Affiliation(s)
- L Huo
- Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - C Chu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - X Jiang
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - S Zheng
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - P Zhang
- Sun Yat-sen University Cancer Center, Guangzhou, China
| | - R Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - N Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - J Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - B Qiu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - H Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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Chen N, Zhou R, Luo Q, Liu Y, Li C, Zhang J, Guo J, Zhou Y, Jiang H, Qiu B, Liu H. Combining Dosimetric and Radiomics Features for the Prediction of Radiation Pneumonitis in Locally Advanced Non-Small Cell Lung Cancer by Machine Learning. Int J Radiat Oncol Biol Phys 2023; 117:e38. [PMID: 37785286 DOI: 10.1016/j.ijrobp.2023.06.732] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) This study aimed to analyze the dosimetric factors and radiomics features of tumor and lungs in locally advanced non-small cell lung cancer (LANSCLC) to establish machine learning models and improve the prediction of grade (G) 2 radiation pneumonitis (RP). MATERIALS/METHODS This study retrospectively collected data of 284 LANSCLC patients underwent concurrent chemoradiotherapy (CCRT) to a median dose of 64 Gy in 20-33 fractions between 2013 and 2021. Of this cohort, 21.1% of patients had ≥ G2 RP. There were 4 regions of interest (ROIs) had been identified in planning computed tomography images: gross tumor volume (GTV), ipsilesional lung (IL), contralesional lung (CL), and total lung (TL). We calculated the dose-volume histogram (DVH) from the lowest dose to the maximum dose increasing by degrees with 1 Gy, and extracted a total of 172 radiomics features from all the 4 ROIs. We selected the best predictors for classifying 2 groups of patients using a sequential backward elimination support vector machine model. RESULTS The best predictors for ≥ G2 RP were the combination of 8 radiomics features and 7 dosimetric factors in training group, and the validation group achieved an area under the curve (AUC) of 0.847 (accuracy, 80.38%; sensitivity, 78.95%; specificity, 81.82%). The eight radiomic features included 2 from GTV while 1, 2 and 3 from IL, CL and TL, respectively. For dosimetric factors, V65 of GTV, V20, V50 and V55 of IL, V10 of CL, V20 and V55 of TL appeared to be significantly related to symptomatic RP. These dosimetric factors should be constrained to less than 99.2%, 50.0%, 17.5%, 13.0%, 39.5%, 32.0%, and 6.6%, respectively. CONCLUSION Combining dosimetric factors and radiomics features within GTV, IL, CL and TL can improve the prediction of symptomatic RP in LANSCLC patients treated with CCRT. The results suggested the importance of V65 of GTV, V20, V50 and V55 of IL, V10 of CL, V20 and V55 of TL as predictors of symptomatic RP and provide useful information for optimization of treatment planning in the era of combination of radiotherapy and immunotherapy.
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Affiliation(s)
- N Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - R Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Q Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Y Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - C Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - J Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - J Guo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Y Zhou
- Homology Medical Technologies Inc., Ningbo, China
| | - H Jiang
- Homology Medical Technologies Inc., Ningbo, China
| | - B Qiu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - H Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
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Zuo YH, Chen Y, Chen LH, Zhang Q, Qiu B. Computed Tomography scanning in patients with COVID-19: artificial intelligence analysis of lesions volume and outcome. Eur Rev Med Pharmacol Sci 2023; 27:5869-5877. [PMID: 37401324 DOI: 10.26355/eurrev_202306_32826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
OBJECTIVE The aim of this study was to summarize the computed tomography (CT) chest scanning results of COVID-19 patients, and to assess the value of artificial intelligence (AI) dynamics and quantitative analysis of lesion volume change for the evaluation of the disease outcome. PATIENTS AND METHODS First chest CT and reexamination imaging data of 84 patients diagnosed with COVID-19 who were treated at Jiangshan Hospital of Guiyang, Guizhou Province from February 4, 2020, to February 22, 2020, were retrospectively analyzed. Distribution, location, and nature of lesions were analyzed according to the characteristics of CT imaging and COVID-19 diagnosis and treatment guidelines. Based on the results of the analysis, patients were divided into the group without abnormal pulmonary imaging, the early group, the rapid progression group, and the dissipation group. AI software was used to dynamically measure the lesion volume in the first examination and in the cases with more than two reexaminations. RESULTS There were statistically significant differences in the age of patients between the groups (p<0.01). The first chest CT examination of the lung without abnormal imaging findings mainly occurred in young adults. Early and rapid progression was more common in the elderly, with a median age of 56 years. The ratio of the lesion to the total lung volume was 3.7 (1.4, 5.3) ml 0.1%, 15.4 (4.5, 36.8) ml 0.3%, 115.0 (44.5, 183.3) ml 3.33%, 32.6 (8.7, 98.0) ml 1.22% in the non-imaging group, early group, rapid progression group, and dissipation group, respectively. Pairwise comparison between the four groups was statistically significant (p<0.001). AI measured the total volume of pneumonia lesions and the proportion of the total volume of pneumonia lesions to predict the receiver operating characteristic (ROC) curve from early development to rapid progression, with a sensitivity of 92.10%, 96.83%, specificity of 100%, 80.56%, and the area under the curve of 0.789. CONCLUSIONS Accurate measurement of lesion volume and volume changes by AI technology is helpful in assessing the severity and development trend of the disease. The increase in the lesion volume proportion indicates that the disease has entered a rapid progression period and is aggravated.
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Affiliation(s)
- Y-H Zuo
- Department of Medical Imaging, Beijing Jishuitan Hospital Guizhou Hospital, Guizhou Province, China.
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Oon CE, Subramaniam AV, Ooi LY, Yehya AHS, Lee YT, Kaur G, Sasidharan S, Qiu B, Wang X. BZD9L1 benzimidazole analogue hampers colorectal tumor progression by impeding angiogenesis. World J Gastrointest Oncol 2023; 15:810-827. [PMID: 37275453 PMCID: PMC10237024 DOI: 10.4251/wjgo.v15.i5.810] [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: 01/03/2023] [Revised: 02/17/2023] [Accepted: 04/21/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND The development of new vasculatures (angiogenesis) is indispensable in supplying oxygen and nutrients to fuel tumor growth. Epigenetic dysregulation in the tumor vasculature is critical to colorectal cancer (CRC) progression. Sirtuin (SIRT) enzymes are highly expressed in blood vessels. BZD9L1 benzimidazole analogue is a SIRT 1 and 2 inhibitor with reported anticancer activities in CRC. However, its role has yet to be explored in CRC tumor angiogenesis.
AIM To investigate the anti-angiogenic potential of BZD9L1 on endothelial cells (EC) in vitro, ex vivo and in HCT116 CRC xenograft in vivo models.
METHODS EA.hy926 EC were treated with half inhibitory concentration (IC50) (2.5 μM), IC50 (5.0 μM), and double IC50 (10.0 μM) of BZD9L1 and assessed for cell proliferation, adhesion and SIRT 1 and 2 protein expression. Next, 2.5 μM and 5.0 μM of BZD9L1 were employed in downstream in vitro assays, including cell cycle, cell death and sprouting in EC. The effect of BZD9L1 on cell adhesion molecules and SIRT 1 and 2 were assessed via real-time quantitative polymerase chain reaction (qPCR). The growth factors secreted by EC post-treatment were evaluated using the Quantibody Human Angiogenesis Array. Indirect co-culture with HCT116 CRC cells was performed to investigate the impact of growth factors modulated by BZD9L1-treated EC on CRC. The effect of BZD9L1 on sprouting impediment and vessel regression was determined using mouse choroids. HCT116 cells were also injected subcutaneously into nude mice and analyzed for the outcome of BZD9L1 on tumor necrosis, Ki67 protein expression indicative of proliferation, cluster of differentiation 31 (CD31) and CD34 EC markers, and SIRT 1 and 2 genes via hematoxylin and eosin, immunohistochemistry and qPCR, respectively.
RESULTS BZD9L1 impeded EC proliferation, adhesion, and spheroid sprouting through the downregulation of intercellular adhesion molecule 1, vascular endothelial cadherin, integrin-alpha V, SIRT1 and SIRT2 genes. The compound also arrested the cells at G1 phase and induced apoptosis in the EC. In mouse choroids, BZD9L1 inhibited sprouting and regressed sprouting vessels compared to the negative control. Compared to the negative control, the compound also reduced the protein levels of angiogenin, basic fibroblast growth factor, platelet-derived growth factor and placental growth factor, which then inhibited HCT116 CRC spheroid invasion in co-culture. In addition, a significant reduction in CRC tumor growth was noted alongside the downregulation of human SIRT1 (hSIRT1), hSIRT2, CD31, and CD34 EC markers and murine SIRT2 gene, while the murine SIRT1 gene remained unaffected, compared to vehicle control. Histology analyses revealed that BZD9L1 at low (50 mg/kg) and high (250 mg/kg) doses reduced Ki-67 protein expression, while BZD9L1 at the high dose diminished tumor necrosis compared to vehicle control.
CONCLUSION These results highlighted the anti-angiogenic potential of BZD9L1 to reduce CRC tumor progression. Furthermore, together with previous anticancer findings, this study provides valuable insights into the potential of BZD9L1 to co-target CRC tumor vasculatures and cancer cells via SIRT1 and/or SIRT2 down-regulation to improve the therapeutic outcome.
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Affiliation(s)
- Chern Ein Oon
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Ayappa V Subramaniam
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Lik Yang Ooi
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Ashwaq Hamid Salem Yehya
- Cancer Research, Eman Biodiscoveries, Kedah 08000, Malaysia
- Vatche and Tamar Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, CA 90095, United States
| | - Yeuan Ting Lee
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Gurjeet Kaur
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Sreenivasan Sasidharan
- Institute for Research in Molecular Medicine, Universiti Sains Malaysia, Penang 11800, Malaysia
| | - Beiying Qiu
- Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore 169857, Singapore
- Singapore National Eye Centre, Singapore Eye Research Institute, Singapore 168751, Singapore
| | - Xiaomeng Wang
- Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore 169857, Singapore
- Singapore National Eye Centre, Singapore Eye Research Institute, Singapore 169857, Singapore
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Tian SQ, Wang JJ, Ji Z, Jiang YL, Qiu B, Fan JH, Sun HT. [Validation of calculation method for dose distribution around radioactive iodine-125 particles based on AAPM TG43 report]. Zhonghua Yi Xue Za Zhi 2023; 103:199-204. [PMID: 36649991 DOI: 10.3760/cma.j.cn112137-20220809-01718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Objective: According to the formula provided by the TG43 report [AAPM TG43 (2004)] proposed by the American Association of Physicists in Medicine (AAPM) in 2004, we calculated the dose distribution around the radioactive iodine-125 particles, and verified the calculation accuracy of the radioactive iodine-125 particles treatment planning system. Methods: AAPM TG43 (2004) report provides two calculation methods when calculating the dose around a single radioactive source. The calculation method that does not consider the geometric structure of the radioactive source is called point source calculation method, and the calculation method that considers the geometric structure of the radioactive source is called line source calculation method. Assuming a single Amersham 6711 radioactive iodine-125 particle with an activity of 100 U, the following point doses were calculated according to the two calculation methods provided by AAPM TG43 (2004) report, at 0°, 90° directions, distances 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5 and 6 cm; In the direction of 45°, the doses at 0.71, 1.41, 2.12, 2.83, 3.54, 4.24, 4.95, 5.66, 6.36, 7.07, 7.78 and 8.49 cm. On the clinically used brachytherapy planning system variseeds 8.0, the above two calculation methods are used to calculate the corresponding activity and the dose around the corresponding type of radioactive iodine-125 particles, and the function of capturing points to templates built in the planning system is used to accurately find the above corresponding point position, using a single measurement of the above corresponding point dose; and comparation of the results were performed to see if there is a statistical difference. Results: The AAPM TG43 report uses point source calculation method to calculate the dose of single Amersham 6711 radioactive iodine-125 particles with activity of 100 U at 0° and 90° directions. The points with the same distance and the same dose are 8 082.18, 1 870.08, 756.58, 381.47, 217.11, 131.91, 86.55, 58.32, 39.97, 27.42, 19.74, 14.13 Gy, respectively, at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5 and 6 cm away from them. In the 45° direction, the doses at the distances of 0.71, 1.41, 2.12, 2.83, 3.54, 4.24, 4.95, 5.66, 6.36, 7.07, 7.78 and 8.49 cm are 3 957.37, 865.83, 329.99, 155.69, 84.10, 48.50, 28.49, 17.80, 11.37, 7.38, 4.98 and 3.39 Gy, respectively; For line source calculation method, radioactive particles are at the same distance as above. The doses at each point in the direction of 0° are 3 128.71, 755.44, 330.30, 180.53, 107.74, 68.56, 46.40, 32.22, 22.70, 16.00, 11.51, 8.24 Gy, respectively. The doses at each point in the direction of 90° are 8 306.46, 1 981.01, 802.74, 405.38, 230.60, 140.03, 91.83, 61.84, 42.36, 29.05, 20.91, 14.97 Gy; In the 45° direction, the dose at the corresponding distance as above is 4 020.78, 877.43, 333.49, 156.93, 84.69, 48.81, 28.65, 17.89, 11.42, 7.41, 4.99 and 3.40 Gy, respectively. The maximum dose difference (0.3%) between the two methods is 7.78 cm in the 45° direction, the maximum difference (-0.3%) between the two methods is 8.49 cm in the 45° direction, and the value of other sampling points is less than 0.3%. The closer the Amersham 6711 iodine-125 particles are to the source in the directions of 0°, 45°, and 90°, the faster the dose will drop, and the dose will drop gradually as the distance increases. Conclusion: The brachytherapy planning system variseeds 8.0 and the AAPM TG43 report calculate a maximum dose difference of 0.3%, which can accurately calculate the dose distribution around radioactive iodine-125 seeds, and provide a reliable tool for the clinical implementation of radioactive iodine-125 particles implantation for tumor treatment.
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Affiliation(s)
- S Q Tian
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
| | - J J Wang
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
| | - Z Ji
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
| | - Y L Jiang
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
| | - B Qiu
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
| | - J H Fan
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
| | - H T Sun
- Department of Radiation Oncology, Peking University Third Hospital, Beijing 100191,China
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Li RZ, Qiu B. [JCOG lung cancer surgery trial series: review and interpretation]. Zhonghua Zhong Liu Za Zhi 2022; 44:703-711. [PMID: 35880335 DOI: 10.3760/cma.j.cn112152-20220511-00325] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Surgery is so far the most effective treatment for early-stage non-small cell lung cancer (NSCLC). Since the 1990s, the pathology spectrum of early-stage lung cancer has gradually changed because of the increased detection of ground-glass opacity (GGO). The findings from preoperative thin-section computed tomography are strong predictors for the invasiveness and lymph node involvement of GGO, and limited surgery is believed to be implemented safely for radiological less invasive lesions, which calls into question the dominance of lobectomy. After the JCOG0201 trial establishing the radiologic criteria of pathological noninvasiveness for lung adenocarcinoma, the Japan Clinical Oncology Group (JCOG) and the West Japan Oncology Group (WJOG) have successively carried out a series of prospective imaging-guided trials to investigate the optimal surgical procedure for early-stage lung cancer. JCOG0804, was a single-arm, non-randomized, confirmatory trial to evaluate the efficacy and safety of sublobar resection (wedge resection and segmentectomy) for GGO dominant peripheral lung cancer. The primary end point was 5-year relapse-free survival. JCOG0802/WJOG4607L, was a multicentre, open-label, phase 3, randomized, controlled, non-inferiority trial to investigate if segmentectomy was non-inferior to lobectomy in patients with small-sized peripheral NSCLC. The primary endpoint was 5-year overall survival. JCOG1211 was also a non-randomized confirmatory trial to confirm the efficacy of a segmentectomy for clinical T1N0 lung cancer with dominant GGO. The primary endpoint was 5-year relapse-free survival. The findings of JCOG0804 and JCOG0802, and the primary analysis results of JCOG1211 have been officially published. This article systematically reviewed and interpreted the results of the JCOG lung cancer surgery trial series.
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Affiliation(s)
- R Z Li
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - B Qiu
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
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Alli-Shaik A, Qiu B, Lai SL, Cheung N, Tan G, Neo SP, Tan A, Cheung CMG, Hong W, Wong TY, Wang X, Gunaratne J. System-wide vitreous proteome dissection reveals impaired sheddase activity in diabetic retinopathy. Am J Cancer Res 2022; 12:6682-6704. [PMID: 36185601 PMCID: PMC9516227 DOI: 10.7150/thno.72947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022] Open
Abstract
Rationale: Diabetic retinopathy (DR) is a major complication of diabetes mellitus causing significant vision loss. DR is a multifactorial disease involving changes in retinal microvasculature and neuronal layers, and aberrations in vascular endothelial growth factors (VEGF) and inflammatory pathways. Despite the success of anti-VEGF therapy, many DR patients do not respond well to the treatment, emphasizing the involvement of other molecular players in neuronal and vascular aberrations in DR. Methods: We employed advanced mass spectrometry-based proteome profiling to obtain a global snapshot of altered protein abundances in vitreous humor from patients with proliferative DR (PDR) in comparison to individuals with epiretinal membrane without active DR or other retinal vascular complications. Global proteome correlation map and protein-protein interaction networks were used to probe into the functional inclination of proteins and aberrated molecular networks in PDR vitreous. In addition, peptide-centric analysis of the proteome data was carried out to identify proteolytic processing, primarily ectodomain shedding events in PDR vitreous. Functional validation experiments were performed using preclinical models of ocular angiogenesis. Results: The vitreous proteome landscape revealed distinct dysregulations in several metabolic, signaling, and immune networks in PDR. Systematic analysis of altered proteins uncovered specific impairment in ectodomain shedding of several transmembrane proteins playing critical roles in neurodegeneration and angiogenesis, pointing to defects in their regulating sheddases, particularly ADAM10, which emerged as the predominant sheddase. We confirmed that ADAM10 protease activity was reduced in animal models of ocular angiogenesis and established that activation of ADAM10 can suppress endothelial cell activation and angiogenesis. Furthermore, we identified the impaired ADAM10-AXL axis as a driver of retinal angiogenesis. Conclusion: We demonstrate restoration of aberrant ectodomain shedding as an effective strategy for treating PDR and propose ADAM10 as an attractive therapeutic target. In all, our study uncovered impaired ectodomain shedding as a prominent feature of PDR, opening new possibilities for advancement in the DR therapeutic space.
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Xi Y, Qiu B, Li Y, Xie X, Liu F, Wu L, Liang T, Li L, Feng Y, Guo J, Wang D, Chu C, Zeng Y, Yang L, Zhang J, Wang J, Chen M, Xue L, Ding Y, Wu Q, Liu H. Diagnostic Signatures for Lung Cancer by Gut Microbiome and Urine Metabolomics Profiling. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen N, Qiu B, Zhou Y, Luo Y, Chu C, Li Q, Wang B, Li C, Jiang H, Liu F, Wang D, Huang X, Xiong M, Liu H. Radiomic Features of Tumor and Tumor Organismal Environment in Locally Advanced Non-Small Cell Lung Cancer Treated With Concurrent Chemoradiotherapy: A Retrospective Analysis of Survival Prediction. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Guo W, Liang N, Ma Q, Chen X, Liu R, Wu S, Bao H, Wu X, Shao Y, Qiu B, Wang D, Tan F, Gao Y, Xue Q, Gao S. MA07.07 Detecting Stage I Lung Cancer with High Sensitivity Using Genome-wide Multi-dimensional Fragmentomic Profiles of Cell Free DNA. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Murray H, Qiu B, Ho SY, Wang X. Complement Factor B Mediates Ocular Angiogenesis through Regulating the VEGF Signaling Pathway. Int J Mol Sci 2021; 22:ijms22179580. [PMID: 34502486 PMCID: PMC8431595 DOI: 10.3390/ijms22179580] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/30/2021] [Revised: 08/27/2021] [Accepted: 08/31/2021] [Indexed: 11/17/2022] Open
Abstract
Complement factor B (CFB), a 95-kDa protein, is a crucial catalytic element of the alternative pathway (AP) of complement. After binding of CFB to C3b, activation of the AP depends on the proteolytic cleavage of CFB by factor D to generate the C3 convertase (C3bBb). The C3 convertase contains the catalytic subunit of CFB (Bb), the enzymatic site for the cleavage of a new molecule of C3 into C3b. In addition to its role in activating the AP, CFB has been implicated in pathological ocular neovascularization, a common feature of several blinding eye diseases, however, with somewhat conflicting results. The focus of this study was to investigate the direct impact of CFB on ocular neovascularization in a tightly controlled environment. Using mouse models of laser-induced choroidal neovascularization (CNV) and oxygen-induced retinopathy (OIR), our study demonstrated an increase in CFB expression during pathological angiogenesis. Results from several in vitro and ex vivo functionality assays indicated a promoting effect of CFB in angiogenesis. Mechanistically, CFB exerts this pro-angiogenic effect by mediating the vascular endothelial growth factor (VEGF) signaling pathway. In summary, we demonstrate compelling evidence for the role of CFB in driving ocular angiogenesis in a VEGF-dependent manner. This work provides a framework for a more in-depth exploration of CFB-mediated effects in ocular angiogenesis in the future.
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Affiliation(s)
- Hannah Murray
- Institute of Molecular and Cell Biology, Agency for Science Technology and Research (A*STAR), Proteos, 61 Biopolis Dr., Singapore 138673, Singapore;
| | - Beiying Qiu
- Duke-NUS Graduate Medical School, 8 College Road, Singapore 169857, Singapore; (B.Q.); (S.Y.H.)
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
| | - Sze Yuan Ho
- Duke-NUS Graduate Medical School, 8 College Road, Singapore 169857, Singapore; (B.Q.); (S.Y.H.)
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Xiaomeng Wang
- Institute of Molecular and Cell Biology, Agency for Science Technology and Research (A*STAR), Proteos, 61 Biopolis Dr., Singapore 138673, Singapore;
- Duke-NUS Graduate Medical School, 8 College Road, Singapore 169857, Singapore; (B.Q.); (S.Y.H.)
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore
- Correspondence: ; Tel.: +65-6576-7248
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12
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Bai GY, Qiu B, Ji Y, Song P, Zhang F, Xue Q, Gao SG. [Progress in diagnosis and treatment of lung adenocarcinomas imaging manifesting as radiological part-solid nodule]. Zhonghua Zhong Liu Za Zhi 2021; 43:743-750. [PMID: 34289567 DOI: 10.3760/cma.j.cn112152-20200710-00646] [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: 11/05/2022]
Abstract
The incidence and mortality of lung cancer ranked the first in China. China had 787, 000 new cases of lung cancer in 2015, and a majority of these patients with advanced lung cancer. With the development and popularization of high-resolution computed tomography, more and more early-stage lung adenocarcinomas are found in screening. The imaging finding of early-stage lung adenocarcinomas often manifests as part solid nodule (PSN) containing ground glass opacity (GGO). Although the imaging manifestation of the nodules can't accurately predict the pathologic type of nodules, the parts of solid nodule and GGO still have some pathologic indications, and the prognostic evaluation effect of the maximum diameter of PSN is superior to that of the whole nodule. With the development of the molecular radiography and molecular pathology, the relationship of imaging manifestation of the PSN and metastasis were focused on. Some PSNs with special nature are more active and rapidly progressed than the pure GGOs. While compared to the pure solid nodules, the aggressiveness of PSNs are insufficient, with lower metastatic rates of lymph node and better prognoses. Currently, international acknowledge recommends to take active intervention measure for PSNs which are highly suspected to be malignant. We focus on the diagnosis and treatment of PSNs, systemically depict their staging, follow-up, surgical treatment, gene detection and immunotherapy.
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Affiliation(s)
- G Y Bai
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - B Qiu
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Ji
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Song
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F Zhang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q Xue
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S G Gao
- Department of Thoracic Surgery, 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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13
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Pang KT, Ghim M, Liu C, Tay HM, Fhu CW, Chia RN, Qiu B, Sarathchandra P, Chester AH, Yacoub MH, Wilkinson FL, Weston R, Warboys CM, Hou HW, Weinberg PD, Wang X. Leucine-Rich α-2-Glycoprotein 1 Suppresses Endothelial Cell Activation Through ADAM10-Mediated Shedding of TNF-α Receptor. Front Cell Dev Biol 2021; 9:706143. [PMID: 34291056 PMCID: PMC8288075 DOI: 10.3389/fcell.2021.706143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 05/06/2021] [Accepted: 06/09/2021] [Indexed: 11/13/2022] Open
Abstract
Elevated serum concentrations of leucine-rich α-2-glycoprotein (LRG1) have been reported in patients with inflammatory, autoimmune, and cardiovascular diseases. This study aims to investigate the role of LRG1 in endothelial activation. LRG1 in endothelial cells (ECs) of arteries and serum of patients with critical limb ischemia (CLI) was assessed by immunohistochemistry and ELISA, respectively. LRG1 expression in sheared and tumor necrosis factor-α (TNF-α)-treated ECs was analyzed. The mechanistic role of LRG1 in endothelial activation was studied in vitro. Plasma of 37-week-old Lrg1 -/- mice was used to investigate causality between LRG1 and tumor necrosis factor receptor 1 (TNFR1) shedding. LRG1 was highly expressed in ECs of stenotic but not normal arteries. LRG1 concentrations in serum of patients with CLI were elevated compared to healthy controls. LRG1 expression was shear dependent. It could be induced by TNF-α, and the induction of its expression was mediated by NF-κB activation. LRG1 inhibited TNF-α-induced activation of NF-κB signaling, expression of VCAM-1 and ICAM-1, and monocyte capture, firm adhesion, and transendothelial migration. Mechanistically, LRG1 exerted its function by causing the shedding of TNFR1 via the ALK5-SMAD2 pathway and the subsequent activation of ADAM10. Consistent with this mechanism, LRG1 and sTNFR1 concentrations were correlated in the serum of CLI patients. Causality between LRG1 and TNFR1 shedding was established by showing that Lrg1 -/- mice had lower plasma sTNFR1 concentrations than wild type mice. Our results demonstrate a novel role for LRG1 in endothelial activation and its potential therapeutic role in inflammatory diseases should be investigated further.
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Affiliation(s)
- Kuin Tian Pang
- Department of Bioengineering, Imperial College London, London, United Kingdom.,Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore
| | - Mean Ghim
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Chenghao Liu
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Hui Min Tay
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.,School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| | - Chee Wai Fhu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Rui Ning Chia
- Centre for Vision Research, Duke-NUS Medical School, Singapore, Singapore
| | - Beiying Qiu
- Centre for Vision Research, Duke-NUS Medical School, Singapore, Singapore
| | - Padmini Sarathchandra
- Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Adrian H Chester
- Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Magdi H Yacoub
- Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Fiona L Wilkinson
- Department of Life Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Ria Weston
- Department of Life Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Christina M Warboys
- Comparative Biomedical Sciences, The Royal Veterinary College, London, United Kingdom
| | - Han Wei Hou
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.,School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore
| | - Peter D Weinberg
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Xiaomeng Wang
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A∗STAR), Singapore, Singapore.,Centre for Vision Research, Duke-NUS Medical School, Singapore, Singapore.,Singapore Eye Research Institute, Singapore, Singapore
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14
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Fan D, Qiu B, Yang XJ, Tang HL, Peng SJ, Yang P, Dong YM, Yang L, Bao GQ, Zhao HD. LncRNA SNHG8 promotes cell migration and invasion in breast cancer cell through miR-634/ZBTB20 axis. Eur Rev Med Pharmacol Sci 2021; 24:11639-11649. [PMID: 33275231 DOI: 10.26355/eurrev_202011_23808] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Small nucleolus RNA Host Gene 8 (SNHG8) belongs to a subgroup of long non-coding RNAs. SNHG8 is upregulated in many cancers, such as gastric cancer, liver cancer, and esophageal squamous cell cancer. However, whether SNHG8 is abnormally expressed in breast cancer and its biological functions remain unclear. Therefore, our research intended to determine the expression status of SNHG8 in breast cancer, explore the effects of SNHG8 on the development of breast cancer, and investigate the potential molecular mechanisms in cancer progression. PATIENTS AND METHODS The expression levels of SNHG8 were detected in tissue samples and cell lines via qRT-PCR. The effects of SNHG8 on viability of breast cancer cells were detected via CCK-8, EdU, transwell, and flow cytometry analyses. RESULTS qRT-PCR results showed that the expression level of SNHG8 was significantly upregulated in tumor tissues and cell lines. Gene functional studies showed that the downregulation of the expression level of SNHG8 significantly inhibited the breast cancer cells migration and invasion, and induced apoptosis. Meanwhile, we found that SNHG8 served as an inhibitor of miR-634 in tumor tissues. SNHG8 may participate in the malignancy of breast cancer by sponging the miR-634 to increase the expression level of ZBTB20. CONCLUSIONS The SNHG8-miR-634-ZBTB20 pathway may be a potential target for the treatment of breast cancers.
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Affiliation(s)
- D Fan
- Tangdu Hospital, The Second Affiliated Hospital of Air Force Military Medical University, Xi'an, China.
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15
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Qiu B, Ji Y, Zhang F, Peng Y, Gao YS, Tan FW, Mou JW, Xue Q, Gao SG, He J. [Anatomical partial lobectomy for the treatment of 3 336 cases of patients with lung nodule]. Zhonghua Zhong Liu Za Zhi 2021; 43:137-142. [PMID: 33472327 DOI: 10.3760/cma.j.cn112152-20201014-00900] [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: 11/05/2022]
Abstract
Objective: To explore the feasibility, safety and effectiveness of anatomical partial lobectomy. Methods: The clinical data of 3 336 patients with lung nodules underwent anatomical partial lobectomy in our center from November 2013 to November 2019 were retrospectively analyzed. We set the safety margin distance according to the imaging feature of the lesion. The surgeons then anatomically detached the major vessels and bronchus in this region, resected the targeted lung tissue along the plane, and completed the resection of anatomical pulmonary lobe and clean and sampling of systemic lymph nodules. Results: A total of 668 cases were multiple nodules and 2 668 cases were solitary pulmonary nodules. According to the postoperative pathological results, 283 cases were benign, 1 197 cases were preinvasive lesions (including 38 cases of atypical adenomatous hyperplasia, 445 cases of adenocarcinoma in situ and 714 cases of minimally invasive adenocarcinoma), 1 713 cases were invasive adenocarcinoma, 73 cases were non-adenocarcinoma and 70 cases were metastatic carcinoma. Among 1 786 invasive primary lung cancers, 11 cases received preoperative neoadjuvant chemotherapy, and their postoperative pathologic diagnoses were stage ypIA. Other 1 775 cases who did not receive postoperative neoadjuvant treatment included 1 587 cases in stage ⅠA, 112 cases in stage ⅠB, 3 cases in stage ⅡA, 18 cases in stage ⅡB, 37 cases in stage ⅢA, 9 cases in stage ⅢB, 9 cases in stage Ⅳ. The average operation time was (127.3±55.3) minutes, and the mean postoperative hospital stay was (4.8±2.4) days. The incidence rate of complications (grade>2) was 1.1%(38/3 336), and no death occurred during 30 days after operation. Conclusion: Anatomic partial lobectomy has good clinical applicability, safety and effectiveness, which is worthy of clinical application and recommendation.
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Affiliation(s)
- B Qiu
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Ji
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F Zhang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Peng
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y S Gao
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F W Tan
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J W Mou
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q Xue
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S G Gao
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J He
- Department of Thoracic Surgery, 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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16
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Liu H, Qiu B, Li Q, Li C, Lin M, Luo Y, Wang B, Liang Y, Zhang L, Xiong M. Efficacy of Function-Adapted Simultaneous Modulated Accelerated Radiation Therapy (FA-SMART) with Concurrent Chemotherapy in Patients with Locally Advanced Non–Small-Cell Lung Cancer: A Phase 2 Prospective Clinical Trial. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Njah K, Chakraborty S, Qiu B, Arumugam S, Raju A, Pobbati AV, Lakshmanan M, Tergaonkar V, Thibault G, Wang X, Hong W. A Role of Agrin in Maintaining the Stability of Vascular Endothelial Growth Factor Receptor-2 during Tumor Angiogenesis. Cell Rep 2020; 28:949-965.e7. [PMID: 31340156 DOI: 10.1016/j.celrep.2019.06.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 08/08/2018] [Revised: 04/16/2019] [Accepted: 06/07/2019] [Indexed: 12/12/2022] Open
Abstract
Endothelial cell (EC) recruitment is central to the vascularization of tumors. Although several proteoglycans have been implicated in cancer and angiogenesis, their roles in EC recruitment and vascularization during tumorigenesis remain poorly understood. Here, we reveal that Agrin, which is secreted in liver cancer, promotes angiogenesis by recruiting ECs within tumors and metastatic lesions and facilitates adhesion of cancer cells to ECs. In ECs, Agrin-induced angiogenesis and adherence to cancer cells are mediated by Integrin-β1, Lrp4-MuSK pathways involving focal adhesion kinase. Mechanistically, we uncover that Agrin regulates VEGFR2 levels that sustain the angiogenic property of ECs and adherence to cancer cells. Agrin attributes an ECM stiffness-based stabilization of VEGFR2 by enhancing interactions with Integrin-β1-Lrp4 and additionally stimulates endothelial nitric-oxide synthase (e-NOS) signaling. Therefore, we propose that cross-talk between Agrin-expressing cancer and ECs favor angiogenesis by sustaining the VEGFR2 pathway.
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Affiliation(s)
- Kizito Njah
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore; School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Sayan Chakraborty
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore.
| | - Beiying Qiu
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Surender Arumugam
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Anandhkumar Raju
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Ajaybabu V Pobbati
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Manikandan Lakshmanan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Vinay Tergaonkar
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
| | - Guillaume Thibault
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Xiaomeng Wang
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore; Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856, Singapore; Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1V 9EL, UK.
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Singapore
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18
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Wang T, Liu Z, Zhang PY, Qiu B, Liu CG, Yin DT. [Factors affecting the near-infrared autofluorescence intensity of parathyroid glands and intraoperative identification of parathyroid glands]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:490-496. [PMID: 32842364 DOI: 10.3760/cma.j.cn115330-20191223-00773] [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: 11/05/2022]
Abstract
Objective: To evaluate the potential factors influencing the parathyroid autofluorescence intensity of near-infrared fluorescent (NIRF) and further value of NIRF in identifying the parathyroid during surgery. Methods: The clinical data of 51 patients who underwent thyroid or parathyroid surgery in the Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University from April to June 2019 were retrospectively analyzed, including 16 males and 35 females, aged 18 to 74 years.The fluorescence intensity (FI) of the parathyroid glands, thyroid glands and background, and the number of parathyroid glands detected by NIRF and white light were measured. Variance analysis, two independent samples t test and Spearman rank correlation analysis were used to analyze the relationship between standardized parathyroid FI and clinical variables. Chi square test was used to analyze the difference of parathyroid detection rate between NIRF and white light. Results: In the 51 patients, the mean standardized parathyroid FI was greater than the standardized thyroid FI (1.72 ± 0.68 vs. 1.25 ± 0.40, t=6.555, P<0.001). The standardized parathyroid FI was not associated with gender, age, operation type, BMI, preoperative serum Ca(2+), parathyroid hormone and calcitonin (all P>0.05), but it was associated with disease type (F=2.636, P<0.05). The mean standardized parathyroid FI of SHPT was lower than that of PTC, PTC with nodular goiter or NG(0.70±0.28 vs. 1.86±0.70, 1.69±0.49, 1.64±0.44, t value was 3.023, -1.129,-2.019, respectively, all P<0.05). There was no difference in the standardized parathyroid FI between SHPT and PHPT (1.34±0.18, t=1.218, P>0.05). There was no difference in standardized parathyroid FI between PHPT, PTC, NG, and PTC with NG(all P>0.05). Except for 3 cases of SHPT, 117 parathyroid glands were detected by NIRF and 101 parathyroid glands were detected by white light. The detection rate of parathyroid glands detected by NIRF was higher than that detected by white light (98.32% vs. 84.87%, χ(2)=13.974, P<0.001). In SHPT, the detection rate of parathyroid gland by NIRF was 25.00%. Conclusions: Except SHPT, parathyroid FI is not affected by other clinical variables. NIRF can improve the detection rate of parathyroid glands during operation.
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Affiliation(s)
- T Wang
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Key Discipline Laboratory of Clinical Medicine for Colleges and Universities in Henan, Zhengzhou 450052, China
| | - Z Liu
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Key Discipline Laboratory of Clinical Medicine for Colleges and Universities in Henan, Zhengzhou 450052, China
| | - P Y Zhang
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Key Discipline Laboratory of Clinical Medicine for Colleges and Universities in Henan, Zhengzhou 450052, China
| | - B Qiu
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Key Discipline Laboratory of Clinical Medicine for Colleges and Universities in Henan, Zhengzhou 450052, China
| | - C G Liu
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Key Discipline Laboratory of Clinical Medicine for Colleges and Universities in Henan, Zhengzhou 450052, China
| | - D T Yin
- Department of Thyroid Surgery, the First Affiliated Hospital of Zhengzhou University, Key Discipline Laboratory of Clinical Medicine for Colleges and Universities in Henan, Zhengzhou 450052, China
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19
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Liu C, Lim ST, Teo MHY, Tan MSY, Kulkarni MD, Qiu B, Li A, Lal S, Dos Remedios CG, Tan NS, Wahli W, Ferenczi MA, Song W, Hong W, Wang X. Collaborative Regulation of LRG1 by TGF-β1 and PPAR-β/δ Modulates Chronic Pressure Overload-Induced Cardiac Fibrosis. Circ Heart Fail 2019; 12:e005962. [PMID: 31830829 DOI: 10.1161/circheartfailure.119.005962] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Despite its established significance in fibrotic cardiac remodeling, clinical benefits of global inhibition of TGF (transforming growth factor)-β1 signaling remain controversial. LRG1 (leucine-rich-α2 glycoprotein 1) is known to regulate endothelial TGFβ signaling. This study evaluated the role of LRG1 in cardiac fibrosis and its transcriptional regulatory network in cardiac fibroblasts. METHODS Pressure overload-induced heart failure was established by transverse aortic constriction. Western blot, quantitative reverse transcription polymerase chain reaction, immunofluorescence, and immunohistochemistry were used to evaluate the expression level and pattern of interested targets or pathology during fibrotic cardiac remodeling. Cardiac function was assessed by pressure-volume loop analysis. RESULTS LRG1 expression was significantly suppressed in left ventricle of mice with transverse aortic constriction-induced fibrotic cardiac remodeling (mean difference, -0.00085 [95% CI, -0.0013 to -0.00043]; P=0.005) and of patients with end-stage ischemic-dilated cardiomyopathy (mean difference, 0.13 [95% CI, 0.012-0.25]; P=0.032). More profound cardiac fibrosis (mean difference, -0.014% [95% CI, -0.029% to -0.00012%]; P=0.048 for interstitial fibrosis; mean difference, -1.3 [95% CI, -2.5 to -0.2]; P=0.016 for perivascular fibrosis), worse cardiac dysfunction (mean difference, -2.5 ms [95% CI, -4.5 to -0.4 ms]; P=0.016 for Tau-g; mean difference, 13% [95% CI, 2%-24%]; P=0.016 for ejection fraction), and hyperactive TGFβ signaling in transverse aortic constriction-operated Lrg1-deficient mice (mean difference, -0.27 [95% CI, -0.47 to -0.07]; P<0.001), which could be reversed by cardiac-specific Lrg1 delivery mediated by adeno-associated virus 9. Mechanistically, LRG1 inhibits cardiac fibroblast activation by competing with TGFβ1 for receptor binding, while PPAR (peroxisome proliferator-activated receptor)-β/δ and TGFβ1 collaboratively regulate LRG1 expression via SMRT (silencing mediator for retinoid and thyroid hormone receptor). We further demonstrated functional interactions between LRG1 and PPARβ/δ in cardiac fibroblast activation. CONCLUSIONS Our results established a highly complex molecular network involving LRG1, TGFβ1, PPARβ/δ, and SMRT in regulating cardiac fibroblast activation and cardiac fibrosis. Targeting LRG1 or PPARβ/δ represents a promising strategy to control pathological cardiac remodeling in response to chronic pressure overload.
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Affiliation(s)
- Chenghao Liu
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore
| | - Seok Ting Lim
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore
| | - Melissa Hui Yen Teo
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore
| | - Michelle Si Ying Tan
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore
| | - Madhura Dattatraya Kulkarni
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore
| | - Beiying Qiu
- Institute of Molecular and Cell Biology, Proteos, Agency for Science, Technology and Research, Singapore (B.Q., N.S.T., W.H., X.W.)
| | - Amy Li
- Anatomy and Histology, School of Medical Sciences, Bosch Institute, University of Sydney, Australia (A.L., S.L., C.G.d.R.)
| | - Sean Lal
- Anatomy and Histology, School of Medical Sciences, Bosch Institute, University of Sydney, Australia (A.L., S.L., C.G.d.R.)
| | - Cristobal G Dos Remedios
- Anatomy and Histology, School of Medical Sciences, Bosch Institute, University of Sydney, Australia (A.L., S.L., C.G.d.R.)
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore.,School of Biological Sciences (N.S.T.), Nanyang Technological University Singapore.,Institute of Molecular and Cell Biology, Proteos, Agency for Science, Technology and Research, Singapore (B.Q., N.S.T., W.H., X.W.).,KK Research Centre, KK Women's and Children Hospital, Singapore (N.S.T.)
| | - Walter Wahli
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore.,INRA ToxAlim, UMR1331, Chemin de Tournefeuille, Toulouse, France (W.W.).,Centre for Integrative Genomics, University of Lausanne, Le Genopode, Switzerland (W.W.)
| | - Michael Alan Ferenczi
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore
| | - Weihua Song
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore.,National Heart Centre Singapore (W.S.)
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Proteos, Agency for Science, Technology and Research, Singapore (B.Q., N.S.T., W.H., X.W.)
| | - Xiaomeng Wang
- Lee Kong Chian School of Medicine (C.L., S.T.L., M.H.Y.T., M.S.Y.T., M.D.K., N.S.T., W.W., M.A.F., W.S., X.W.), Nanyang Technological University Singapore.,Institute of Molecular and Cell Biology, Proteos, Agency for Science, Technology and Research, Singapore (B.Q., N.S.T., W.H., X.W.).,Institute of Ophthalmology, University College London, United Kingdom (X.W.).,Singapore Eye Research Institute, The Academia, Singapore (X.W.)
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20
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Qiu B, Tan A, Veluchamy AB, Li Y, Murray H, Cheng W, Liu C, Busoy JM, Chen QY, Sistla S, Hunziker W, Cheung CMG, Wong TY, Hong W, Luesch H, Wang X. Apratoxin S4 Inspired by a Marine Natural Product, a New Treatment Option for Ocular Angiogenic Diseases. Invest Ophthalmol Vis Sci 2019; 60:3254-3263. [PMID: 31361305 DOI: 10.1167/iovs.19-26936] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Abnormal blood vessel formation is a defining feature of many blinding eye diseases. Targeting abnormal angiogenesis by inhibiting VEGF has revolutionized the treatment of many ocular angiogenic diseases over the last decade. However, a substantial number of patients are refractory to anti-VEGF treatment or may develop resistance over time. The objective of this study was to determine the efficacy and the mechanism of action of Apratoxin S4 in ocular angiogenesis. Methods Retinal vascular cell proliferation, migration, and the ability to form tube-like structure were studied in vitro. Ex vivo aortic ring, choroid, and metatarsal assays were used to study Apratoxin S4's impact on vessel outgrowth in a multicellular environment. Apratoxin S4 was also tested in mouse models of oxygen-induced retinopathy (OIR) and laser-induced choroidal neovascularization (CNV), and in a rabbit model of persistent retinal neovascularization (PRNV). Western blot and ELISA were used to determine the expression of key angiogenic regulators after Apratoxin S4 treatment. Results Apratoxin S4 strongly inhibits retinal vascular cell activation by suppressing multiple angiogenic pathways. VEGF-activated vascular cells and angiogenic vessels are more susceptible to Apratoxin S4 treatment than quiescent vascular cells and vessels. Both intraperitoneal and intravitreal delivery of Apratoxin S4 are able to impede ocular neovascularization in vivo. Apratoxin S4 specifically attenuates pathological ocular angiogenesis and exhibits a combinatorial inhibitory effect with standard-of-care VEGF inhibitor drug (aflibercept). Conclusions Apratoxin S4 is a potent antiangiogenic drug that inhibits the activation of retinal endothelial cells and pericytes through mediating multiple angiogenic pathways.
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Affiliation(s)
- Beiying Qiu
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore
| | - Alison Tan
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore
| | - Amutha Barathi Veluchamy
- Singapore Eye Research Institute, Singapore National Eye Center, Singapore.,Duke-NUS Medical School, National University of Singapore, Singapore.,Department of Ophthalmology, Yong Loo Lin School of Medicine, Singapore
| | - Yong Li
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore.,Singapore Eye Research Institute, Singapore National Eye Center, Singapore
| | - Hannah Murray
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore
| | - Wei Cheng
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore
| | - Chenghao Liu
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore
| | - Joanna Marie Busoy
- Singapore Eye Research Institute, Singapore National Eye Center, Singapore
| | - Qi-Yin Chen
- Department of Medicinal Chemistry and Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, Gainesville, Florida, United States
| | - Srivani Sistla
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore
| | - Walter Hunziker
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore.,Department of Physiology, National University Singapore, Singapore
| | - Chui Ming Gemmy Cheung
- Singapore Eye Research Institute, Singapore National Eye Center, Singapore.,Duke-NUS Medical School, National University of Singapore, Singapore
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Center, Singapore.,Duke-NUS Medical School, National University of Singapore, Singapore
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore
| | - Hendrik Luesch
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore.,Department of Medicinal Chemistry and Center for Natural Products, Drug Discovery and Development (CNPD3), University of Florida, Gainesville, Florida, United States.,Oceanyx Pharmaceuticals, Inc., Woburn, Massachusetts, United States
| | - Xiaomeng Wang
- Institute of Molecular and Cell Biology, Agency for Science Technology & Research, Singapore.,Singapore Eye Research Institute, Singapore National Eye Center, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore.,Institute of Ophthalmology, University College London, United Kingdom
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21
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Li Q, Qiu B, Wang B, Zhang J, Li C, Zhou Y, Qin J, Guo S, Xie W, Hui Z, Liang Y, Guo J, Wang H, Zhu M, Shen W, Duan L, Chen L, Zhang L, Long H, Wang Y, Liu H. Comparable Local Control Rates after Hyper- and Hypo-Fractionated Radiotherapy with IMRT Technique in Small Cell Lung Cancer: The Introduction of Extended LQ and TCP Models. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Xue K, Zhao X, Zhang Z, Qiu B, Tan QSW, Ong KH, Liu Z, Parikh BH, Barathi VA, Yu W, Wang X, Lingam G, Hunziker W, Su X, Loh XJ. Sustained delivery of anti-VEGFs from thermogel depots inhibits angiogenesis without the need for multiple injections. Biomater Sci 2019; 7:4603-4614. [DOI: 10.1039/c9bm01049a] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Polyurethane thermogels show sustained delivery of bioactive anti-VEGFs therapeutics to the eye.
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23
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Qiu B, Wang B, Liu H, Li Q. P2.17-26 Quantifying the Interfractional Motion of the Esophagus During Radiation Therapy for Locally Advanced Non Small Cell Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Qiu B, Gong N, Li Q, Xie C, Liu H. P3.17-08 Assessing Primary Lung Cancer Lesion Using Ratio Metrics of T1 and T2-Weighted Images in Magnetic Resonance Imaging. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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25
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Liang Y, Chen Q, Lin Y, Liu H, Qiu B. P3.01-60 A Novel MET D1246H Mutation After Progression of EGFR-TKI/MET Inhibitor Combined Therapy in a NSCLC Patient with Acquired MET Amplification. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1620] [Citation(s) in RCA: 2] [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] [Indexed: 11/28/2022]
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26
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Li Q, Qiu B, Liang W, Wang J, Hu W, Xu S, Lin S, López J, Chen N, Zhang T, Guo M, Zhao Y, Liu S, Liu Q, Guo J, Cai L, Wang S, Wang X, Zhang L, Rong T, Yu Z, Yun J, Wu G, Zhang L, Fang V, Long H, Pang Q, Liu H. P1.15-17 Risk Factors of Local Recurrence in EGFR-Mutant Stage III-pN2 Adenocarcinoma After Complete Resection: A Multi-Center Real-World Cohort Study. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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27
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Li Q, Gong N, Qiu B, He H, Wang J, Ye Y, Guo J, Lin S, Cai P, Chen Q, Li H, Xie C, Liu H. P1.16-40 Evaluating the Tumor Heterogeneity in Lung Cancer by Constructing Tumor Heterogeneity Index (THI) from Magnetic Resonance Imaging. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Lio DCS, Liu C, Wiraja C, Qiu B, Fhu CW, Wang X, Xu C. Molecular Beacon Gold Nanosensors for Leucine-Rich Alpha-2-Glycoprotein-1 Detection in Pathological Angiogenesis. ACS Sens 2018; 3:1647-1655. [PMID: 30095245 DOI: 10.1021/acssensors.8b00321] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Leucine-rich alpha-2-glycoprotein-1 (Lrg1) is an emerging biomarker for angiogenesis. Its expression in ocular tissues is up-regulated in both human patients with proliferative diabetic retinopathy and rodent models of pathological angiogenesis. However, there is no existing sensor that allows visualization and monitoring of Lrg1 expression noninvasively and in real time. Herein, we report a nucleic acid-gold nanorod-based nanosensor for the noninvasive monitoring of cellular Lrg1 expression in angiogenesis. Specifically, this platform is constructed by covalently conjugating molecular beacons onto gold nanorods, which prequench the fluorophores on the molecular beacons. Upon intracellular entry and endosomal escape, the complexes interact with cellular Lrg1 mRNA through hybridization of the loop area of the molecular beacons. This complexation distances the fluorophores from nanorod and restores the prequenched fluorescence. The reliability of this platform is confirmed by examining the increased Lrg1 expression in migrating keratinocytes and the Lrg1 gene changes in different postnatal stages of mouse retinal vasculature growth in the mouse retina model.
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Affiliation(s)
- Daniel Chin Shiuan Lio
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
- NTU-Northwestern Institute for Nanomedicine, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Chenghao Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Christian Wiraja
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
| | - Beiying Qiu
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Proteos, 61 Biopolis Dr, Singapore 138673, Singapore
| | - Chee Wai Fhu
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Xiaomeng Wang
- Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Drive, Singapore 636921, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Proteos, 61 Biopolis Dr, Singapore 138673, Singapore
- Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower Level 6, Singapore 169856
- Institute of Ophthalmology, University College London, 11-43 Bath Street, London EC1 V 9EL, United Kingdom
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore
- NTU-Northwestern Institute for Nanomedicine, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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Wang B, Zuo Z, Chen H, Qiu B, Du M, Gao Y. The comparison of thoracoscopic-laparoscopic esophagectomy and open esophagectomy: A meta-analysis. Indian J Cancer 2018; 54:115-119. [PMID: 29199673 DOI: 10.4103/ijc.ijc_192_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The objective of this study was to perform a meta-analysis to evaluate the effects of thoracoscopic-laparoscopic esophagectomy (TLE) and open esophagectomy (OE) in the treatment of esophageal cancer. METHODS A literature search was performed using PubMed, Embase, and Google Scholar databases for relevant keywords and the medical subject headings. After we had screened further, 13 clinical trials were included in the final meta-analysis. Specific odds ratios (ORs), standardized mean differences (SMDs), mean differences (MDs), and confidence intervals (CIs) were calculated. RESULTS The outcomes of treatment effects included anastomotic leakage, blood loss, number of lymph nodes harvested, and operating time. Comparing OE for esophageal cancer patients, the pooled OR of anastomotic leakage was 0.89 (95% CI = [0.47, 1.68]), the pooled SMD of blood loss was - 0.56 (95% CI = [-0.77, -0.35]), the pooled MD of lymph nodes harvested was - 0.93 (95% CI = [-2.35, 0.50]), and the pooled SMD of operating time was 0.31 (95% CI = [0.02, 0.59]). CONCLUSION TLE was found to significantly decrease patients' blood loss. There is no difference of anastomotic leakage and the number of lymph nodes harvested between TLE and OE.
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Affiliation(s)
- B Wang
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Zuo
- Thoracic Cancer Treatment Center, Armed Police Beijing Corps Hospital, Beijing, China
| | - H Chen
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Qiu
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Du
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Gao
- Department of Thoracic Surgical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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30
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Li QW, Qiu B, Wang B, Wang DL, Yin SH, Yang H, Liu JL, Fu JH, Liu MZ, Xie CM, Liu H. Prediction of pathologic responders to neoadjuvant chemoradiotherapy by diffusion-weighted magnetic resonance imaging in locally advanced esophageal squamous cell carcinoma: a prospective study. Dis Esophagus 2018; 31:4259168. [PMID: 29036528 DOI: 10.1093/dote/dox121] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 09/06/2017] [Indexed: 12/11/2022]
Abstract
This study aims to investigate the role of diffusion-weighted magnetic resonance imaging (DW-MRI) in ESCC patients receiving neoadjuvant concurrent chemoradiotherapy (CCRT), and the efficacy of apparent diffusion coefficient (ADC) values in predicting pathologic response to neoadjuvant CCRT. Twenty-eight locally advanced ESCC patients treated with neoadjuvant CCRT followed by radical resection were prospectively enrolled. DW-MRI was recommended to be performed within 2 weeks before and 4-6 weeks after neoadjuvant CCRT. The calculated ADCs pre- (ADC1) and post- (ADC2) neoadjuvant CCRT, the definite (ΔADC) and percentage changes (ΔADC%) were analyzed for the efficacy of predicting pathologic response to neoadjuvant CCRT. Twenty patients had been identified as responders (tumor regression grade 1-2). Among them, ADC2 (3.02 ± 0.84 vs. 2.12 ± 0.44 × 10-3 mm2/s, P = 0.001) and ΔADC (1.22 ± 0.78 vs 0.64 ± 0.26 × 10-3 mm2/s, P = 0.007) were significantly higher than those of nonresponders (tumor regression grade: 3-5). Receiver operating characteristic analysis revealed that ADC2 exhibited an overall accuracy of in 71.4% in predicting pathologic response, with a sensitivity of 60.0%, a specificity of 100%, a positive predictive value of 100%, and a negative predictive value of 50.0%, when 3.04 × 10-3 mm2/s was used as the cutoff value. ADC value could be useful in predicting pathologic response to neoadjuvant CCRT in ESCC patients. High postneoadjuvant CCRT ADC is a predictive indicator for good response.
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Affiliation(s)
- Q-W Li
- Departments of Radiation Oncology
| | - B Qiu
- Departments of Radiation Oncology
| | - B Wang
- Departments of Radiation Oncology
| | | | - S-H Yin
- Departments of Medical Imaging
| | | | - J-L Liu
- Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center Guangzhou, Guangdong, China
| | | | - M-Z Liu
- Departments of Radiation Oncology
| | - C-M Xie
- Departments of Medical Imaging
| | - H Liu
- Departments of Radiation Oncology
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31
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Li Q, Qiu B, Xie W, Hui Z, Wang B, Liang Y, Guo J, Zhou Y, Zhu M, Shen W, Duan R, Chen L, Zhang L, Long H, Liu H. P2.14-004 Comparable Local Controls after Twice-Daily and Once-Daily Chest Radiotherapy in Extensive Stage Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Ma L, Ye W, Li Q, Wang B, Luo G, Chen Z, Guo S, Qiu B, Liu H. P1.14-010 SGA Could Be a Predictive Factor for Radiation Pneumonitis in Lung Cancer Patients Treated by Concurrent Chemoradiotherapy. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Qiu B, Liu H. P1.14-012 Hypofractionated Simultaneous Integrated Boost IMRT Concurrent with Chemotherapy Improved Loco-Regional Control in Locally Advanced NSCLC. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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34
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Qiu B, Ma L, Zhang J, Li Q, Wang B, Zhang X, Qiang M, Chen Z, Guo S, Liu H. Survival and Prognostic Factors of Radical Radiotherapy for Locally Recurrent Non-Small Cell Lung Cancer after Surgery. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Qiu B, Liang Y, Li Q, Liu G, Wang F, Chen Z, LIU M, Zhao M, Liu H. Local Therapy for Oligoprogressive Disease in Advanced Staged Non–small Cell Lung Cancer Patients Harboring Epidermal Growth Factor Receptor Mutation. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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Qiu B, Ma L, Ye W, Li Q, Wang B, Luo G, Chen Z, Guo S, Liu H. Subjective Global Assessment (SGA) Scores Could be a Predictive Factor for Radiation Pneumonitis in Locally Advanced Lung Cancer Patients Treated By Intensity-Modulated Radiation Therapy and Concurrent Chemotherapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Poon MW, Jiang D, Qin P, Zhang Y, Qiu B, Chanda S, Tergaonkar V, Li Q, Wong IY, Yu Z, Tse HF, Wong DSH, Lian Q. Inhibition of NUCKS Facilitates Corneal Recovery Following Alkali Burn. Sci Rep 2017; 7:41224. [PMID: 28106169 PMCID: PMC5247723 DOI: 10.1038/srep41224] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 06/07/2016] [Accepted: 12/19/2016] [Indexed: 02/07/2023] Open
Abstract
Corneal wound healing involves a complex cascade of cytokine-controlled cellular events, including inflammatory and angiogenesis responses that are regulated by transcriptional chromatin remodeling. Nuclear Ubiquitous Casein and cyclin-dependent Kinase Substrate (NUCKS) is a key chromatin modifier and transcriptional regulator of metabolic signaling. In this study, we investigated the role of NUCKS in corneal wound healing by comparing its effects on corneal alkali burn in NUCKS knockout (NKO) and NUCKS wild-type (NWT) mice. Our data showed that following alkali-injury, inhibition of NUCKS (NKO) accelerated ocular resurfacing and suppressed neovascularization; the cytokine profile of alkali burned corneas in NKO mice showed suppressed expression of inflammation cytokines (IL1A & IL1B); upregulated expression of antiangiogenic factor (Pigment Epithelium-derived Factor; PEDF); and downregulated expression of angiogenic factor (Vascular Endothelial Growth Factor, VEGF); in vitro, following LPS-induced NFκB activation, NKO corneal cells showed reduced expression of IL6, IP10 and TNFα. In vitro, corneal epithelial cells showed reduced NF-κb activation on silencing of NUCKS and corresponding NFκB-mediated cytokine expression was reduced. Here, we illustrate that inhibition of NUCKS played a role in cytokine modulation and facilitated corneal recovery. This reveals a potential new effective strategy for ocular burn treatment.
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Affiliation(s)
- Ming-Wai Poon
- Department of Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China.,Shenzhen Institutes of Research and Innovation, the University of Hong Kong, Hong Kong SAR, China.,Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Dan Jiang
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Peng Qin
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Yuelin Zhang
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Beiying Qiu
- Institute of Molecular and Cellular Biology, Biopolis, Singapore
| | - Sumit Chanda
- Infectious &Inflammatory Disease Center, the Burnham Institute for Medical Research, La Jolla, California, U.S
| | - Vinay Tergaonkar
- Institute of Molecular and Cellular Biology, Biopolis, Singapore
| | - Qing Li
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Ian Y Wong
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Zhendong Yu
- Central Laboratory, Peking University Shenzhen Hospital, Shenzhen, China
| | - Hung-Fat Tse
- Department of Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - David S H Wong
- Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
| | - Qizhou Lian
- Department of Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China.,Shenzhen Institutes of Research and Innovation, the University of Hong Kong, Hong Kong SAR, China.,Department of Ophthalmology, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong SAR, China
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Mu H, Qiu B, Xie Q, Han W, Zhao T, Zhao S. 324 CapG is Highly Expressed in Prostate Cancer and Affects Cell Apoptosis, Proliferation and Migration. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Li Q, Zhu Y, Zhang W, Yang H, Qiu B, Liang Y, HU Y, Liu M, Liu H. Concurrent Chemoradiation Therapy for Esophageal Cancer and Synchronous Second Primary Malignancy in the Upper Digestive Tract. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Qiu B, Wang D, Yang H, Xie W, Liang Y, Cai P, Liu M, Fu J, Xie C, Liu H. Combined Modalities of Magnetic Resonance Imaging, Endoscopy, and Computed Tomography in Evaluation of Tumor Response to Definitive Chemoradiation Therapy in Esophageal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu S, Anfossi S, Zheng Y, Cai M, Fu J, Qiu B, Yang H, Liu Q, Fu J, Liu M, Burks J, Lin S, Reuben J, Liu H. Clinical and Biological Prognostic Factors for Locoregional Recurrence in Patients With Thoracic Esophageal Squamous Cell Carcinoma Treated With Radical 2-field Lymph Node Dissection: Results From Long-term Follow-up. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu S, Qiu B, Yang H, Luo G, Liang Y, Zheng Y, Chen Z, Luo K, Xi M, Liu Q, HU Y, Li Q, Fu J, Liu M, Liu H. Staging Matched-Pair Comparison of Surgery After Neoadjuvant Chemoradiation Therapy, Surgery Alone, and Definitive Chemoradiation Therapy for Thoracic Esophageal Squamous Cell Carcinoma: Treatment Decision Making in the Real World. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Wang Y, Qiu B, Liu J, Zhu WG, Zhu S. Cocaine- and amphetamine-regulated transcript facilitates the neurite outgrowth in cortical neurons after oxygen and glucose deprivation through PTN-dependent pathway. Neuroscience 2014; 277:103-10. [DOI: 10.1016/j.neuroscience.2014.06.064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/12/2014] [Accepted: 06/28/2014] [Indexed: 01/11/2023]
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Qiu B, Shi X, Wong ET, Lim J, Bezzi M, Low D, Zhou Q, Akıncılar SC, Lakshmanan M, Swa HLF, Tham JML, Gunaratne J, Cheng KKY, Hong W, Lam KSL, Ikawa M, Guccione E, Xu A, Han W, Tergaonkar V. NUCKS is a positive transcriptional regulator of insulin signaling. Cell Rep 2014; 7:1876-86. [PMID: 24931609 DOI: 10.1016/j.celrep.2014.05.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 03/17/2014] [Accepted: 05/14/2014] [Indexed: 12/24/2022] Open
Abstract
Although much is known about the molecular players in insulin signaling, there is scant information about transcriptional regulation of its key components. We now find that NUCKS is a transcriptional regulator of the insulin signaling components, including the insulin receptor (IR). Knockdown of NUCKS leads to impaired insulin signaling in endocrine cells. NUCKS knockout mice exhibit decreased insulin signaling and increased body weight/fat mass along with impaired glucose tolerance and reduced insulin sensitivity, all of which are further exacerbated by a high-fat diet (HFD). Genome-wide ChIP-seq identifies metabolism and insulin signaling as NUCKS targets. Importantly, NUCKS is downregulated in individuals with a high body mass index and in HFD-fed mice, and conversely, its levels increase upon starvation. Altogether, NUCKS is a physiological regulator of energy homeostasis and glucose metabolism that works by regulating chromatin accessibility and RNA polymerase II recruitment to the promoters of IR and other insulin pathway modulators.
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Affiliation(s)
- Beiying Qiu
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Xiaohe Shi
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138667, Singapore
| | - Ee Tsin Wong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Joy Lim
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138667, Singapore
| | - Marco Bezzi
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Diana Low
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Qiling Zhou
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Semih Can Akıncılar
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Manikandan Lakshmanan
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Hannah L F Swa
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Jill Mae Lan Tham
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Jayantha Gunaratne
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Kenneth K Y Cheng
- State Key Laboratory of Pharmaceutical Biotechnology, Hong Kong, China
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Karen S L Lam
- State Key Laboratory of Pharmaceutical Biotechnology, Hong Kong, China
| | | | - Ernesto Guccione
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore
| | - Aimin Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Hong Kong, China; Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Weiping Han
- Singapore Bioimaging Consortium, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138667, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
| | - Vinay Tergaonkar
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore 138673, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
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Qiu B, Zou HY, Yang YH, Lai CF. Interleukin-1B-31 gene polymorphism in Hakka gastric cancer patients in Guangdong, China. Genet Mol Res 2014; 13:5873-9. [DOI: 10.4238/2014.august.7.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
The effects of the FUS1 gene on the oesophageal carcinoma cell line EC109 are investigated. The messenger RNA (mRNA) expression level of the FUS1 gene was detected by a reverse transcription polymerase chain reaction (RT-PCR) technique in the cell lines SHEE, SHEEC and EC109. The full length of the FUS1 gene was amplified using a PCR technique from the total RNA of umbilical mesenchymal stem cells. The FUS1 gene was cloned into a pSL6-IRES-EGFP vector and identified by PCR, digestion and sequencing. The recombinant pSL6-FUS1-IRES-EGFP plasmid was transfected into 293FT cells and the resulting lentivirus was collected. The growth of EC109 cells after transfection with lentivirus containing the FUS1 gene was determined by MTT assay and plate colony formation. Expression of the FUS1 gene in EC109 cells was weaker than that in SHEE, SHEEC cells and human umbilical vein endothelial cells (HUVEE; used as a control). Transfection efficiency was more than 80% after 48 h. Cell growth assessed by MTT assay was inhibited by about 40% compared with the control group; a finding that was in accordance with the plate colony formation results. The results suggest that the FUS1 gene might be a candidate tumour suppressor gene for the treatment of oesophageal carcinoma; however, these results require confirmation in in vivo studies.
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Affiliation(s)
- B Zhang
- School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou 510515, PR China.
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Zhu B, Li Y, Li M, Yang X, Qiu B, Gao Q, Liu J, Liu M. Dynamic proteome analysis of spinal cord injury after ischemia-reperfusion in rabbits by two-dimensional difference gel electrophoresis. Spinal Cord 2013; 51:610-5. [PMID: 23752265 DOI: 10.1038/sc.2013.24] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Revised: 02/28/2013] [Accepted: 03/07/2013] [Indexed: 01/22/2023]
Abstract
STUDY DESIGN Spinal cord injury (SCI) is a devastating and common neurologic disorder that has profound influences on modern society from physical, psychosocial and socio-economic perspectives. OBJECTIVES To analyze the dynamic changes in protein expression during SCI after ischemia-reperfusion. METHODS We used two-dimensional difference gel electrophoresis combined with matrix-assisted laser desorption/ionization time-of-flight/time-of-flight MS to give a global analysis of protein dynamic change during SCI after ischemia-reperfusion. Dynamic changes in protein expression were investigated from 6 to 48 h in SCI after ischemia-reperfusion using a proteomics tool. RESULTS Twenty-one proteins were identified in total, including neuronal proteins, glycometabolism enzymes, stress-related proteins and cytoskeleton-related proteins. These were divided into upregulated and downregulated groups. Results identified 24 h as a key time point when all proteins were changed dramatically. In addition, changes in Fascin expression were discovered in SCI for the first time. CONCLUSION In conclusion, we observed dynamic proteome change correlated with SCI by ischemia-reperfusion, and provided a clue to this pathological mechanism by protein identification and analysis.
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Affiliation(s)
- B Zhu
- Department of Orthopedics, The Fifth Central Hospital of Tianjin, Tianjin, China
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Abstract
Primary small cell carcinoma of esophagus (SCCE) is a rare disease with poor prognosis. The aims of this study are to review the clinical characteristics, treatment modalities, and outcomes of SCCE and to investigate the prognostic factors and optimal treatment options. Sixty-four patients diagnosed as SCCE in Sun Yat-sen University Cancer Center from 1990 to 2011 were retrospectively reviewed. There were 46 patients with limited disease (LD) and 18 with extensive disease. The median survival time (MST) and overall survival rate were calculated and compared by the Kaplan-Meier method and log-rank test, respectively. The prognostic factors were calculated by Cox hazards regression model. With a median follow up of 11.6 months, the MST of all the 64 patients was 12.6 months, 16.5 months for LD and 9.0 months for extensive disease. The 1-, 3-, and 5-year overall survivals were 52.5%, 20.9%, and 7.5%, respectively. In univariate analysis, patients with ECOG performance score <2 (P = 0.009), lesion length ≤5 cm (P = 0.009), T stage ≤2 (P = 0.004), LD (P = 0.000), and multimodality treatment (P = 0.016) had significant associations with MST. Multivariate analysis showed that ECOG performance score (P = 0.001), T stage (P = 0.023), limited-extensive stage (P = 0.007), and treatment modality (P = 0.008) were independent prognostic factors. Locoregional treatment combined with chemotherapy had a trend to increase MST from 15.3 to 20.0 months in LD patients (P = 0.126), while combined chemotherapy had a significant impact on MST in extensive disease patients (P = 0.000). SCCE is a highly malignant disease with poor prognosis. Patients might obtain survival benefit from the combination of locoregional treatment and systemic therapy. Prospective studies are needed to validate these factors.
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Affiliation(s)
- Y Zhu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China; Guangdong Esophageal Cancer Research Institute, Guangzhou, Guangdong, China
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Qiu B, Lin YB, Cai QQ, Hu YM, Wang DF, Lin ZD, Liang Y. Primary lymphoepithelioma-like carcinoma of ocular adnexa: clinicopathologic features and treatment. ACTA ACUST UNITED AC 2013; 20:e113-22. [PMID: 23559878 DOI: 10.3747/co.20.1289] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND METHODS Lymphoepithelioma-like carcinoma (lelc) is a rare malignancy in ocular adnexa. Here, we report 4 patients with lelc and review 11 patients reported in the literature. Clinical profiles, association with Epstein-Barr virus (ebv), treatment, and outcomes are analyzed. RESULTS Lacrimal glands and the lacrimal drainage system, eyelid, and conjunctiva are potential primary sites for lelc. The tumours are characterized histologically by nests of undifferentiated malignant cells surrounded by lymphoid infiltrates. Infection with ebv was confirmed in lelc of ocular adnexa, and that association seemed to be restricted to Asian populations. Results from our centre uniformly showed expression of ebv-encoded small rnas in primary tumour, locally recurrent tumour, and metastatic lymph nodes. This disease had a tendency to relapse regionally. Postoperative radiotherapy seems to improve disease-free survival. Tumours appear to be sensitive to radiotherapy and chemotherapy based on cisplatin and 5-fluorouracil. At our centre, 3 patients were still living at 22, 33, and 76 months after surgery. One patient died of distant metastasis after a survival of 38 months. CONCLUSIONS Lymphoepithelioma-like carcinoma is a heterogenous entity among ocular adnexal malignancies. Multimodality treatment provides a better chance at survival. Further investigation is required to achieve a better understanding of the biologic behavior of this entity and of its optimal treatment.
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Affiliation(s)
- B Qiu
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, PR China
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Meng Y, Wang J, Sun J, Zhang F, Wang H, Zhang T, Qiu B, Yang X. Abstract No. 140: MRI of intracoronary local agent delivery using motexafin gadolinium: towards molecular MRI-guided gene therapy. J Vasc Interv Radiol 2012. [DOI: 10.1016/j.jvir.2011.12.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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