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Tang H, Zhou X, Liu L, Wang Z, Wang C, Luo N, Jin G. Superparamagnetic Iron Oxide-Erastin-Polyethylene Glycol Nanotherapeutic Platform: A Ferroptosis-Based Approach for the Integrated Diagnosis and Treatment of Nasopharyngeal Cancer. Mol Pharm 2024. [PMID: 38736196 DOI: 10.1021/acs.molpharmaceut.3c01172] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Erastin can induce ferroptosis in tumor cells as an effective small molecule inhibitor. However, its application is hampered by a lack of water solubility. This study investigated the effects of superparamagnetic iron oxide (SPIO)-erastin-polyethylene glycol (PEG) nanoparticles prepared by loading SPIO-PEG nanoparticles with erastin on ferroptosis. SPIO-erastin-PEG nanoparticles exhibited square and spherical shapes with good dispersibility. The zeta potential and hydrodynamic size of SPIO-erastin-PEG were measured as (-37.68 ± 2.706) mV and (45.75 ± 18.88) nm, respectively. On T2-weighted imaging, the nanosystem showed significant contrast enhancement compared to no-enhancement magnetic resonance imaging (MRI). SPIO-erastin-PEG induced ferroptosis by increasing reactive oxygen species and iron content and promoting the accumulation of lipid peroxides and the degradation of glutathione peroxidase 4. Pharmacokinetic experiments revealed a half-life of 1.25 ± 0.05 h for the SPIO-erastin-PEG solution in circulation. Moreover, significant antitumorigenic effects of SPIO-erastin-PEG have been demonstrated in 5-8F cells and mouse-bearing tumors. These results indicated that the synthesized SPIO-erastin-PEG nanoplatform could induce ferroptosis effects in vitro and in vivo while exhibiting favorable physical characteristics. This approach may provide a new strategy for theranostic nanoplatform for nasopharyngeal cancer.
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Affiliation(s)
- Haonan Tang
- Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Xiao Zhou
- Xiangtan Central Hospital, Xiangtan, Hunan 411000, China
| | - Lijuan Liu
- Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Ziyu Wang
- Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Chen Wang
- Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Ningbin Luo
- Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, China
| | - Guanqiao Jin
- Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region 530021, China
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Wang J, Li Z, Chen Y, Luo N, He S. Gelatin nanocarriers assembled by a self-immolative cross-linker for targeted cancer therapy. Int J Biol Macromol 2024; 268:131722. [PMID: 38649082 DOI: 10.1016/j.ijbiomac.2024.131722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
With a number of outstanding properties, gelatin is an ideal candidate for assembling nanoplatforms in biomedical applications. Generally, gelatin nanocarriers are cross-linked by aldehydes to improve their stability in water solution. However, aldehydes could cause multiple toxicities and their cross-linking products are uncontrollable. Here, we first used a self-immolative cross-linker to assemble gelatin nanocarriers for the controlled release of drugs and targeted cancer therapy. The cross-linker contains a disulphide bridge and two symmetrical succinimidyl-esters, endowing it with multiple functions: 1) to cross-link the gelatin nanocarriers and thus improve their stability in water; 2) to conjugate the drug and tumor-targeting ligands with nanocarriers through covalent linkage; 3) to redox-responsively degrade the nanocarriers through hydrolysis of disulphide bridge; and 4) to produce traceless drug molecules through self-immolative reaction. Good biocompatibility and controllable drug release were demonstrated by in vitro experiments. Both qualitative and quantitative analyses confirmed the intracellular uptake of the nanocarriers by using doxorubicin (DOX) as a drug model and phenylboronic acid (PBA) as the targeting ligand. In vivo results demonstrated high therapeutic efficiency and low toxic side effects of the DOX loaded nanocarriers against artificial liver tumors.
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Affiliation(s)
- Jingtong Wang
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi 530021, PR China
| | - Zhao Li
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi 530021, PR China
| | - Yajing Chen
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi 530021, PR China
| | - Ningbin Luo
- Guangxi Medical University Cancer Hospital, PR China
| | - Shengbin He
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education, Guangxi Colleges and Universities Key Laboratory of Biological Molecular Medicine Research, School of Basic Medical Sciences, Guangxi Medical University, Nanning, Guangxi 530021, PR China.
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Li T, Guo L, Li J, Mu X, Liu L, Song S, Luo N, Zhang Q, Zheng B, Jin G. Precision USPIO-PEG-SLe x Nanotheranostic Agent Targeted Photothermal Therapy for Enhanced Anti-PD-L1 Immunotherapy to Treat Immunotherapy Resistance. Int J Nanomedicine 2024; 19:1249-1272. [PMID: 38348177 PMCID: PMC10859766 DOI: 10.2147/ijn.s445879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/19/2024] [Indexed: 02/15/2024] Open
Abstract
Background The anti-Programmed Death-Ligand 1 (termed aPD-L1) immune checkpoint blockade therapy has emerged as a promising treatment approach for various advanced solid tumors. However, the effect of aPD-L1 inhibitors limited by the tumor microenvironment makes most patients exhibit immunotherapy resistance. Methods We conjugated the Sialyl Lewis X with a polyethylene glycol-coated ultrasmall superparamagnetic iron oxide (USPIO-PEG) to form UPS nanoparticles (USPIO-PEG-SLex, termed UPS). The physicochemical properties of UPS were tested and characterized. Transmission electron microscopy and ICP-OES were used to observe the cellular uptake and targeting ability of UPS. Flow cytometry, mitochondrial membrane potential staining, live-dead staining and scratch assay were used to verify the in vitro photothermal effect of UPS, and the stimulation of UPS on immune-related pathways at the gene level was analyzed by sequencing. Biological safety analysis and pharmacokinetic analysis of UPS were performed. Finally, the amplification effect of UPS-mediated photothermal therapy on aPD-L1-mediated immunotherapy and the corresponding mechanism were studied. Results In vitro experiments showed that UPS had strong photothermal therapy ability and was able to stimulate 5 immune-related pathways. In vivo, when the PTT assisted aPD-L1 treatment, it exhibited a significant increase in CD4+ T cell infiltration by 14.46-fold and CD8+ T cell infiltration by 14.79-fold, along with elevated secretion of tumor necrosis factor-alpha and interferon-gamma, comparing with alone aPD-L1. This PTT assisted aPD-L1 therapy achieved a significant inhibition of both primary tumors and distant tumors compared to the alone aPD-L1, demonstrating a significant difference. Conclusion The nanotheranostic agent UPS has been introduced into immunotherapy, which has effectively broadened its application in biomedicine. This photothermal therapeutic approach of the UPS nanotheranostic agent enhancing the efficacy of aPD-L1 immune checkpoint blockade therapy, can be instructive to address the challenges associated with immunotherapy resistance, thereby offering potential for clinical translation.
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Affiliation(s)
- Ting Li
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, People’s Republic of China
| | - Lianshan Guo
- Department of Emergency, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530007, People’s Republic of China
| | - Jiaxu Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Graduate School, Nanning Normal University, Nanning, 530001, People’s Republic of China
| | - Xingyu Mu
- Department of Nuclear Medicine, Affiliated Hospital of Guilin Medical University, Guilin, 541001, People’s Republic of China
| | - Lijuan Liu
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, People’s Republic of China
| | - Shulin Song
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, People’s Republic of China
| | - Ningbin Luo
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, People’s Republic of China
| | - Qi Zhang
- Laboratory Animal Center, Guangxi Medical University, Nanning, 530021, People’s Republic of China
| | - Bin Zheng
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, People’s Republic of China
| | - Guanqiao Jin
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, 530021, People’s Republic of China
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Liu L, Tang H, Wang K, Liu J, Luo N, Jin G. A three-gene signature reveals changes in the tumor immune microenvironment in the progression from NAFLD to HCC. Sci Rep 2023; 13:22295. [PMID: 38102321 PMCID: PMC10724126 DOI: 10.1038/s41598-023-49358-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most dangerous malignant tumors. The incidence rates of obesity related NAFLD and NASH are increasing year by year, and they are the main risk factors for HCC at present. Finding the mechanism of malignant transformation of NAFLD and NASH is helpful for early prevention and diagnosis. In this study, we performed differential analysis using NAFLD data, NASH data, and HCC data to identify crossover differential genes. Then, using the clinical data of TCGA, a prognostic risk prediction model of three genes (TEAD4, SOCS2, CIT) was constructed, and survival analysis and receiver operating characteristic curves were drawn. The prognostic model was validated using ICGC, GSE116174 and GSE54236 datasets. In addition, we assessed immune status and function in high- and low-risk populations using a prognostic model. Moreover, we assessed the expression of CIT in clinical samples and HCC cell lines and validated its role in HCC development. Our study elucidates the important role of the tumor immune microenvironment in the development of NAFLD/NASH to HCC, deepens the understanding of the pathogenesis of NAFLD/NASH development to HCC, and is helpful for clinical management and decision-making.
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Affiliation(s)
- Lijuan Liu
- Guangxi Medical University Cancer Hospital, Nan Ning, Guangxi Zhuang Autonomous Region, China
| | - Haonan Tang
- Guangxi Medical University Cancer Hospital, Nan Ning, Guangxi Zhuang Autonomous Region, China
| | - Kui Wang
- Guangxi Medical University Cancer Hospital, Nan Ning, Guangxi Zhuang Autonomous Region, China
| | - Jiaying Liu
- Guangxi Medical University Cancer Hospital, Nan Ning, Guangxi Zhuang Autonomous Region, China
| | - Ningbin Luo
- Guangxi Medical University Cancer Hospital, Nan Ning, Guangxi Zhuang Autonomous Region, China.
| | - Guanqiao Jin
- Guangxi Medical University Cancer Hospital, Nan Ning, Guangxi Zhuang Autonomous Region, China.
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Luo N, Li LY, Ye CY, Liu XY, Wang L, Wang E. [The correlation between burst suppression on electroencephalogram during laparoscopic surgery and emergence delirium in elderly patients]. Zhonghua Yi Xue Za Zhi 2023; 103:3263-3267. [PMID: 37926569 DOI: 10.3760/cma.j.cn112137-20230630-01115] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Objective: To investigate the relationship between intraoperative electroencephalogram burst suppression (BS) and emergence delirium (ED) in elderly patients undergoing elective laparoscopic surgery under total intravenous anesthesia (TIVA). Methods: From October 2017 to September 2019, a total of 358 elderly patients who underwent elective laparoscopic surgery under TIVA at Xiangya Hospital, Central South University, were included. Patients were divided into two groups based on the confusion assessment method for the intensive care unit (CAM-ICU) assessment conducted before leaving the post-anesthesia care unit (PACU): the ED group [n=63, 46 males, 17 females, average age of (70.8±0.6) years] and the non-ED group [n=295, 220 males, 75 females, average age of (69.7±0.2) years]. Preoperative general information, intraoperative conditions, and intraoperative electroencephalogram BS status were collected. A multivariate logistic regression model was employed to identify risk factors associated with ED. Results: In the ED group, the duration of surgery, intraoperative blood loss, the burst suppression ratio (BSR)>10% lasting for more than 1 minute were (224.4±9.6) min, (240.8±33.9) ml, 36.5% (23/63), respectively, which were higher than those of the non-ED group [(204.7±3.6) min, (150.5±9.2) ml, 21.7% (64/295), all P<0.05]. Multivariate logistic regression analysis revealed that a longer duration of education was a protective factor for ED (OR=0.904, 95%CI: 0.833-0.982,P=0.016), whereas increased intraoperative blood loss (OR=1.002, 95%CI: 1.000-1.003, P=0.013) and BSR>10% lasting for more than 1 minute (OR=2.131, 95%CI: 1.004-4.524,P=0.049) were identified as risk factors for ED. Conclusion: In elderly patients undergoing laparoscopic surgery under TIVA, intraoperative electroencephalogram BS may be a risk factor for ED.
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Affiliation(s)
- N Luo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Y Li
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C Y Ye
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - X Y Liu
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - L Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - E Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, China
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Tang Y, Lu X, Liu L, Huang X, Lin L, Lu Y, Zhou C, Lai S, Luo N. A Reliable and Repeatable Model for Predicting Microvascular Invasion in Patients With Hepatocellular Carcinoma. Acad Radiol 2023; 30:1521-1527. [PMID: 37002035 DOI: 10.1016/j.acra.2023.02.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 03/31/2023]
Abstract
RATIONALE AND OBJECTIVES The reproducibility of imaging models for predicting microvascular invasion (MVI) in patients with hepatocellular carcinoma (HCC) remains questionable due to inconsistent interpretation of image signs. Our aim was to screen for high-consensus MRI features to develop a repeatable model for predicting MVI. MATERIALS AND METHODS We included 219 patients with HCC who underwent surgical resection, and patients were divided into a training cohort (n = 145) and a validation cohort (n = 74). Morphological characteristics, signal features on hepatobiliary phases, and dynamic enhancement patterns were qualitatively interobserver evaluated. Interobserver agreement was assessed using Cohen's κ for selecting features with high interobserver agreement. Risk factors that were significant in stepwise multivariate analysis and that could be measured with good interobserver agreement were used to construct a predictive model, which was assessed in the validation cohort. The diagnostic performance of the model was evaluated based on area under the receiver operating characteristic curve (AUC). RESULTS Multivariate analysis identified nonsmooth tumor margin, absence of radiologic capsule, and intratumoral artery as independent risk factors of MVI. These MRI-based features showed good or nearly perfect interobserver agreement between radiologists (κ > 0.6). The predictive model predicted MVI well in the training (AUC 0.734) and validation cohorts (AUC 0.759) and fitted well to calibration curves. CONCLUSION MRI features included nonsmooth tumor margin, absence of radiologic capsule, and intratumoral artery that can be assessed with high interobserver agreement can predict MVI in HCC patients. The predictive model described here may be useful to radiologists, regardless of experience level.
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Affiliation(s)
- Yunjing Tang
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xinhui Lu
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Lijuan Liu
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xiangyang Huang
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Ling Lin
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yixin Lu
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Chuanji Zhou
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Shaolv Lai
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Ningbin Luo
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China.
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Wei W, Ji Y, Tang Z, Huang X, Zhang W, Luo N. Breast Magnetic Resonance Imaging Can Predict Ki67 Discordance Between Core Needle Biopsy and Surgical Samples. J Magn Reson Imaging 2023; 57:85-94. [PMID: 35648113 DOI: 10.1002/jmri.28231] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Disagreement in assessments of Ki67 expression based on core-needle biopsy and matched surgical samples complicates decisions in the treatment of breast cancer. PURPOSE To examine whether preoperative breast MRI could be useful in predicting Ki67 discordance between core-needle biopsy and surgical samples. STUDY TYPE Retrospective. POPULATION Three hundred and sixty-five breast cancer patients with MRI scans and having both core-needle biopsy and surgical samples from 2017 to 2019. FIELD STRENGTH/SEQUENCE 3.0 T, T2-weighted iterative decomposition of water and fat with echo asymmetry and least squares estimation sequence, diffusion-weighted sequence using b-values 0/1000, dynamic contrast enhanced image by volume imaged breast assessme NT. ASSESSMENT We collected clinicopathologic variables and preoperative MRI features (tumor size, lesion type, shape of mass, spiculated margin, internal enhancement, peri-tumoral edema, intra-tumoral necrosis, multifocal/multicentric, apparent diffusion coefficient [ADC] minimum, ADC mean, ADC maximum, ADC difference). STATISTICAL TESTS K-means clustering, multivariable logistic regression, receiver operating characteristic curve. RESULTS Sixty-one patients showed Ki67 discordance and 304 patients show Ki67 concordance according to our definition using K-means clustering. Multivariable regression analysis showed that the following parameters were independently associated with Ki67 discordance: peri-tumoral edema, odds ratio (OR) 2.662, 95% confidence interval (CI) 1.432-4.948; ADCmin ≤ 0.829 × 10-3 mm2 /sec, OR 2.180, 95% CI 1.075-4.418; and ADCdiff > 0.317 × 10-3 mm2 /sec, OR 3.365, 95% CI 1.698-6.669. This multivariable model resulted in an AUC of 0.758 (95% CI 0.711-0.802) with sensitivity and specificity being 0.803 and 0.621, respectively. CONCLUSION Presence of peri-tumoral edema, smaller ADCmin and greater ADCdiff in preoperative breast MRI may indicate high risk of Ki67 discordance between core-needle biopsy and surgical samples. For patients with these MRI-based risk factors, clinicians should not rely on Ki67 assessment only from core-needle biopsy.
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Affiliation(s)
- Wenjuan Wei
- Department of Radiology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, People's Republic of China
| | - Yinan Ji
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People's Republic of China
| | - Zhi Tang
- Department of Radiology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, People's Republic of China
| | - Xiangyang Huang
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People's Republic of China
| | - Wei Zhang
- Department of Radiology, Liuzhou People's Hospital Affiliated to Guangxi Medical University, Liuzhou, Guangxi, People's Republic of China
| | - Ningbin Luo
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People's Republic of China
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Tian H, Qi Y, Zhu X, Luo N, Li M, Sun T, Qi C. 104P NTRK3 mutation affects the efficacy of immune checkpoint inhibitors in patients with advanced cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.136] [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: 11/01/2022] Open
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Xiao W, Chen L, Xuan T, He X, Yu H, Zhu X, Luo N, Li M, Qi Y, Sun T, Qi C. 1769P KDM6A mutation act as a potential immunotherapy biomarker in urothelial carcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1847] [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: 11/01/2022] Open
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Luo N, Kiang S, Mattar A, Loor G, Wang Y. Proof of Concept Design of an Ex-Vivo Lung Perfusion (EVLP) Device to Evaluate Optimal Ex Vivo Hemodynamic Environments for Donation After Cardiac Death (DCD) Lungs. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.772] [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] Open
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Luo N, Huang X, Ji Y, Jin G, Qin Y, Xiang B, Su D, Tang W. A functional liver imaging score for preoperative prediction of liver failure after hepatocellular carcinoma resection. Eur Radiol 2022; 32:5623-5632. [PMID: 35294586 DOI: 10.1007/s00330-022-08656-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/11/2022] [Accepted: 02/13/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Posthepatectomy liver failure (PHLF) is a challenging complication after resection to treat hepatocellular carcinoma (HCC), and it is associated with high mortality. Preoperative prediction of PHLF may improve patient subsequent and reduce such mortality. This study examined whether a functional liver imaging score (FLIS) based on preoperative gadoxetic acid-enhanced magnetic resonance imaging (MRI) could predict PHLF. MATERIALS AND METHODS The study included 502 patients who underwent preoperative gadoxetic acid-enhanced MRI, followed by HCC resection. Significant preoperative predictors of PHLF were identified using logistic regression analysis. The ability of FLIS to predict PHLF was evaluated using receiver operating characteristic curves, and its predictive power was compared to that of the model for end-stage liver disease (MELD) score, albumin-bilirubin (ALBI) score, and indocyanine green 15-min retention rate (ICG-R15). RESULTS In multivariate analysis, PHLF was independently associated with FLIS (OR 0.452, 95% CI 0.361 to 0.568, p < 0.001) and major resection (OR 1.898, 95% CI 1.057 to 3.408, p = 0.032). FLIS was associated with a higher area under the receiver operating characteristic curve (0.752) than the MELD score (0.557), ALBI score (0.609), or ICG-R15 (0.605) (all p < 0.05). Patients with FLIS ≤ 4 who underwent major resection were at 9.4-fold higher risk of PHLF than patients with lower FLIS who underwent minor resection. CONCLUSION FLIS is an independent predictor of PHLF, and it may perform better than the MELD score, ALBI score, and ICG-R15 clearance. We propose treating elevated FLIS and major resection as risk factors for PHLF. KEY POINTS • A functional liver imaging score can independently predict posthepatectomy liver failure in patients with HCC. • The score may predict such failure better than MELD and ALBI scores and ICG-R15. • Patients with scores ≤ 4 who undergo major hepatic resection may be at nearly tenfold higher risk of posthepatectomy liver failure.
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Affiliation(s)
- Ningbin Luo
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xiangyang Huang
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yinan Ji
- Department of Surgery, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Guanqiao Jin
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Yunying Qin
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Bangde Xiang
- Department of Surgery, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Danke Su
- Department of Radiology, Guangxi Medical University Cancer Hospital, Nanning, China.
| | - Weizhong Tang
- Department of Surgery, Guangxi Medical University Cancer Hospital, Nanning, China.
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Luo N, Gao HM, Wang YQ, Li HJ, Li Y. MiR-942-5p alleviates septic acute kidney injury by targeting FOXO3. Eur Rev Med Pharmacol Sci 2021; 24:6237-6244. [PMID: 32572890 DOI: 10.26355/eurrev_202006_21521] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Sepsis refers to the systemic inflammatory response caused by infection. Acute kidney injury (AKI) in sepsis is very common, and there are many complicated mechanisms for the occurrence of septic AKI. This article aimed to study the role of miR-942-5p in inflammation and apoptosis of septic AKI and its potential mechanism. MATERIALS AND METHODS Real Time-quantitative Polymerase Chain Reaction (RT-qPCR) was performed to detect the expression of RNAs. The protein expression was detected using Western blot. The contents of inflammatory factors in the cell supernatant were detected using commercial enzyme-linked immunosorbent assay (ELISA) kits. Cell Counting Kit-8 (CCK-8) assay was utilized to compare the cell viability of each group. Terminal dexynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) staining and flow cytometry were used to observe cell apoptosis. RESULTS MiR-942-5p expression was reduced in lipopolysaccharide (LPS)-treated HK-2 cells. MiR-942-5p mimic could observably increase miR-942-5p expression. The overexpression of miR-942-5p dramatically inhibits the expression of inflammatory factors and Bax, but increase Bcl-2 expression. MiR-942-5p overexpression greatly reversed the LPS-induced decrease in viability of HK-2 cells. In addition, we observed that LPS can markedly increase the number of apoptosis, while miR-942-5p mimic can reduce it. CONCLUSIONS Taken together, our results demonstrated that miR-942-5p expression was reduced in the LPS-treated HK-2 cells, and miR-942-5p overexpression can inhibit LPS-induced inflammation and apoptosis of HK-2 cells via targeting FOXO3.
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Affiliation(s)
- N Luo
- Department of Intensive Care Unit, Tianjin First Central Hospital, Tianjin, China.
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Luo N, Li W, Xie J, Fu D, Liu L, Huang X, Su D, Jin G. Preoperative normalized iodine concentration derived from spectral CT is correlated with early recurrence of hepatocellular carcinoma after curative resection. Eur Radiol 2020; 31:1872-1882. [PMID: 33037444 DOI: 10.1007/s00330-020-07330-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 05/05/2020] [Revised: 08/10/2020] [Accepted: 09/21/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To investigate whether normalized iodine concentration (NIC) correlates with tumor microvessel density and early recurrence in patients with HCC. MATERIALS AND METHODS We included 71 patients with surgically resected single HCC in this prospective study who underwent preoperative spectral CT between November 2014 and June 2016. Two observers independently measured the NIC in the arterial phase (AP) and portal venous phase (PVP). The relationship between NIC and microvessel density was evaluated. Univariate and multivariate logistic regression was performed to evaluate independent predictors of early recurrence. RESULTS Early recurrence occurred in 28 of 71 patients (39.4%) during the 2-year follow-up. NIC-AP positively correlated with microvessel density for the two observers (r = 0.593 and 0.527). Based on multivariate analysis, independent risk factors for early HCC recurrence were tumor size (odds ratio, 1.200; p = 0.043) and NIC-AP (odds ratio, 2.522; p = 0.005). For the two observers, areas under the receiver operating characteristic curve for predicting early HCC recurrence were 0.719 and 0.677. Early recurrence rates were significantly higher among patients with NIC-AP values higher than the optimal cutoff than among those with values below the cutoff. CONCLUSION Normalized iodine concentration in the arterial phase from spectral CT reflects tumor-derived angiogenesis and is a potential predictive biomarker for early recurrence of hepatocellular carcinoma. KEY POINTS • Normalized iodine concentration in the arterial phase positively correlated with microvessel density of hepatocellular carcinoma. • In the patients with hepatocellular carcinoma, tumor size and normalized iodine concentration in the arterial phase were independent risk factors for early hepatocellular carcinoma recurrence. • Early hepatocellular carcinoma recurrence rates were significantly higher when normalized iodine concentration in the arterial phase values was above the optimal cutoff.
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Affiliation(s)
- Ningbin Luo
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
| | - Wenzhu Li
- Department of Radiology, Hainan People's Hospital, Haikou, Hainan, People's Republic of China
| | - Jisheng Xie
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
| | - Danhui Fu
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
| | - Lidong Liu
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
| | - Xiangyang Huang
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China
| | - Danke Su
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
| | - Guanqiao Jin
- Department of Radiology, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
- Department of Radiology, Guangxi Clinical Medical Research Center of Imaging Medicine, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
- Department of Radiology, Guangxi Key Clinical Specialties, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
- Department of Radiology, Guangxi Medical University Cancer Hospital Superiority Cultivation Discipline, 71 Hedi Road, Nanning, Guangxi, People's Republic of China.
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Nie Z, Luo N, Liu J, Zhang Y, Zeng X, Su D. Dual-Mode Contrast Agents with RGD-Modified Polymer for Tumour-Targeted US/NIRF Imaging. Onco Targets Ther 2020; 13:8919-8929. [PMID: 32982284 PMCID: PMC7495348 DOI: 10.2147/ott.s256044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 08/06/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Cancer diagnosis and treatment during the early stages of disease remain extremely challenging clinical tasks. The development of effective multimode contrast agents could greatly facilitate the early detection of cancer. MATERIALS AND METHODS We prepared dual-mode contrast agents using a biotin/avidin bioamplification system. Through in vivo and in vitro experiments, we verified the imaging performance of this contrast agents in both fluorescence and ultrasound and its targeting specificity for MDA-MB-231 cells. RESULTS The RGD peptide-labelled microbubbles showed excellent targeting of αvβ3 integrin expressed by MDA-MB-231 cells in vitro and in vivo. The signal intensity and time duration of ultrasound imaging using these particles were superior to those obtained with a typical ultrasound contrast agent in the clinic. The tumour areas also demonstrated high Cy5.5 accumulation by fluorescence imaging. CONCLUSION The results show that this targeted dual-mode imaging system yields outstanding US/NIRF imaging results, possibly allowing the early clinical diagnosis of cancer.
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Affiliation(s)
- Zhenhui Nie
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Ningbin Luo
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Junjie Liu
- Department of Medical Ultrasound, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Yu Zhang
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Xinyi Zeng
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Danke Su
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
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Zhang Q, Liu W, Xu H, Huang Z, Luo N, Ge M, Guo H. 121P Relationship between different mutation type in JAK1/2/3 and B2M with other biomarkers for immunotherapy in solid tumours. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.242] [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: 10/23/2022] Open
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Wang HF, Wang YQ, Dou L, Gao HM, Wang B, Luo N, Li Y. Influences of up-regulation of miR-126 on septic inflammation and prognosis through AKT/Rac1 signaling pathway. Eur Rev Med Pharmacol Sci 2020; 23:2132-2138. [PMID: 30915758 DOI: 10.26355/eurrev_201903_17257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the influences of the up-regulation of micro ribonucleic acid (miR)-126 on septic inflammation and prognosis through the AKT/Rac1 signaling pathway. MATERIALS AND METHODS Human pulmonary microvascular endothelial cells (HMVECs) were cultured and transfected with miR-126 mimics. The HMVECs in the logarithmic growth phase in different groups were incubated with thrombin. The transmembrane resistivity of HMVECs was detected as the permeability via Electric Cell-substrate Impedance Sensing (ECIS) system. The endothelial cell space was observed via immunofluorescence. The mouse model of sepsis was then established and the serum was extracted to detect interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). The survival curve was plotted based on the death time. The Statistical Product and Service Solutions (SPSS) 22.0 was used for statistical analysis, and p<0.05 suggested that the difference was statistically significant. RESULTS Thrombin could significantly increase the permeability of HMVECs, while the overexpression of miR-126 markedly inhibited the increased permeability. The overexpression of miR-126 also reduced the endothelial cell space induced by thrombin. In addition, the serum IL-6 and TNF-α levels of sepsis mice in miR-126 overexpression group were significantly decreased compared to those in the control group. Moreover, the death rate of mice exogenously expressing miR-126 was lower than that in the control group. CONCLUSIONS The up-regulation of miR-126 inhibited the septic inflammation and improved the prognosis of sepsis mice through the AKT/Rac1 signaling pathway.
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Affiliation(s)
- H-F Wang
- Department of Intensive Care Unit, Tianjin First Center Hospital, Tianjin, China.
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Nie Z, Luo N, Liu J, Zeng X, Zhang Y, Su D. Multi-mode biodegradable tumour-microenvironment sensitive nanoparticles for targeted breast cancer imaging. Nanoscale Res Lett 2020; 15:81. [PMID: 32297036 PMCID: PMC7158979 DOI: 10.1186/s11671-020-03309-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/25/2020] [Indexed: 05/07/2023]
Abstract
Gas-filled ultrasound (US) contrast agents easily collapse in the body, and the gas can easily overflow, which limits the effectiveness of US imaging. To address this issue, an injectable gas-generating multi-mode system was developed that carries the MR negative contrast agent Fe3O4, the fluorescent dye Cy5.5, and the CO2 releasing donor (Na2CO3). The nanoparticles can continuously generate carbon dioxide (CO2) gas in acidic tumour tissue in the body, giving the tumour a strong echo signal under ultrasonic imaging. In addition, the nanoparticles confer excellent effects for MR and fluorescence imaging of the tumour tissue. The results indicate that this pH-responsive NP system provides good effects in MR/US/fluorescent imaging. This study provides a useful reference for multi-mode tumour imaging.
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Affiliation(s)
- Zhenhui Nie
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Ningbin Luo
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Junjie Liu
- Department of Medical Ultrasound, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Xinyi Zeng
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Yu Zhang
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
| | - Danke Su
- Department of Radiology, Affiliated Tumour Hospital of Guangxi Medical University, No 71, Hedi Road, Nanning, 530021 Guangxi People’s Republic of China
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Niu M, Li Y, Li G, Zhou L, Luo N, Yao M, Kang W, Liu J. A longitudinal study on α-synuclein in plasma neuronal exosomes as a biomarker for Parkinson's disease development and progression. Eur J Neurol 2020; 27:967-974. [PMID: 32150777 DOI: 10.1111/ene.14208] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 03/05/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE The identification of reliable diagnostic and prognostic biomarkers for Parkinson's disease (PD) is urgently needed. Here, we explored the potential use of α-synuclein (α-syn) in plasma neuronal exosomes as a biomarker for early PD diagnosis and disease progression. METHODS This study included both cross-sectional and longitudinal designs. The subjects included 36 patients with early-stage PD, 17 patients with advanced PD, 20 patients with idiopathic rapid eye movement sleep behavior disorder and 21 healthy controls (HCs). α-syn levels were measured by electrochemiluminescence immunoassay. A subgroup of patients with early-stage PD (n = 18) participated in a follow-up examination with repeated blood collection and clinical assessments after an average of 22 months. RESULTS The α-syn levels in plasma neuronal exosomes were significantly higher in patients with early-stage PD compared with HCs (P = 0.007). Differences in α-syn levels between patients with idiopathic rapid eye movement sleep behavior disorder and HCs did not reach statistical significance (P = 0.08). In addition, Spearman correlation analysis revealed that neuronal exosomal α-syn concentrations were correlated with Movement Disorders Society Unified Parkinson's Disease Rating Scale III/(I + II + III) scores, Non-Motor Symptom Questionnaire scores and Sniffin' Sticks 16-item test scores of patients with PD (P < 0.05). After a mean follow-up of 22 months in patients with early-stage PD, a Cox regression analysis adjusted for age and gender showed that longitudinally increased α-syn rather than baseline α-syn levels were associated with higher risk for motor symptom progression in PD (P = 0.039). CONCLUSIONS Our results suggested that α-syn in plasma neuronal exosomes may serve as a biomarker to aid early diagnosis of PD and also as a prognostic marker for PD progression.
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Affiliation(s)
- M Niu
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - G Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Zhou
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - N Luo
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Yao
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - W Kang
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,Ruijin Hospital North affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Liu
- Department of Neurology and Institute of Neurology, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.,CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai, China
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Luo N, Ji Y, Huang X, Liu Y, Liu L, Jin G, Zhao X, Zhu X, Su D. Changes in Apparent Diffusion Coefficient as Surrogate Marker for Changes in Ki-67 Index Due to Neoadjuvant Chemotherapy in Patients with Invasive Breast Cancer. Acad Radiol 2019; 26:1352-1357. [PMID: 30711409 DOI: 10.1016/j.acra.2019.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/11/2018] [Revised: 01/20/2019] [Accepted: 01/20/2019] [Indexed: 11/18/2022]
Abstract
RATIONALE AND OBJECTIVES To evaluate possible correlation between changes in apparent diffusion coefficient (ADC) and Ki-67 index as a result of neoadjuvant chemotherapy (NAC) in patients with invasive breast cancer. METHODS AND MATERIALS Between February 2016 and October 2017, 87 patients with breast cancer underwent diffusion-weighted magnetic resonance imaging (b = 0 and 800 sec/mm2) before and after NAC. ADC and tumor diameter before and after NAC were compared to the Ki-67 index determined from biopsy or surgical specimens. RESULTS Ki-67 index did not correlate significantly with ADC before NAC (p = 0.862) or afterwards (p = 0.292), nor did it correlate with tumor diameter before (p = 0.545) or afterwards (p = 0.478). However, change in ADC as a result of NAC correlated inversely with change in Ki-67 index (r = -0.326, p = 0.002). The percentage change in Ki-67 index did not correlate with the percentage change in ADC (p = 0.404). Similarly, the change in Ki-67 index or percentage change in that index did not correlate with the change in tumor diameter (p = 0.075) or percentage change in tumor diameter (p = 0.233). CONCLUSION Comparison of pre- and post-NAC ADC can be used to estimate the change in Ki-67 index in patients with invasive breast cancer.
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Affiliation(s)
- Ningbin Luo
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Yinan Ji
- Department of Breast Surgery, Guangxi Medical University Affiliated Cancer Hospital, Nanning, Guangxi, China
| | - Xiangyang Huang
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Yu Liu
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Lidong Liu
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Guanqiao Jin
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Xin Zhao
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Xuna Zhu
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China
| | - Danke Su
- Department of Radiology, Guangxi Medical University Affiliated Cancer Hospital, No. 71 Hedi Road, Nanning, Guangxi 530021, China.
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Chong W, Ho R, Luo N, Koh G. THE INFLUENCE OF CAREGIVER-PATIENT RELATIONSHIP QUALITY AND CAREGIVER BURDEN ON LONG-TERM CARE USE IN SINGAPORE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- W Chong
- Nanyang Technological University
| | - R Ho
- Nanyang Technological University
| | - N Luo
- National University of Singapore
| | - G Koh
- National University of Singapore
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Wang C, Liu L, Lai S, Su D, Liu Y, Jin G, Zhu X, Luo N. Diagnostic value of diffusion-weighted magnetic resonance imaging for local and skull base recurrence of nasopharyngeal carcinoma after radiotherapy. Medicine (Baltimore) 2018; 97:e11929. [PMID: 30142809 PMCID: PMC6112862 DOI: 10.1097/md.0000000000011929] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Tumor recurrence is a major cause of nasopharyngeal carcinoma (NPC) treatment failure. Diffusion-weighted imaging (DWI) is used for a variety of cancers, but few data are available for NPC.The aim of the study was to investigate the DWI features of recurrent NPC after radiotherapy and apparent diffusion coefficient (ADC) thresholds for the diagnosis of recurrent NPC.This was a retrospective study of 160 patients with NPC treated by radiotherapy at the Cancer Hospital affiliated to Guangxi Medical University from May 2012 to March 2015. The patients were divided into the local recurrence (n = 39), fibrosis (n = 51), clivus recurrence (n = 22), and clivus nonrecurrence (n = 48) groups. The patients underwent magnetic resonance imaging (MRI), enhanced MRI, and DWI. Receiver operating characteristics curves were used to determine sensitivity, specificity, and negative predictive values.ADC values were significantly different between the recurrence and fibrosis groups (P < .0001). Using ADC threshold values of 0.887 × 10 mm/s for local recurrence, the area under the curve (AUC) of DWI was 0.967 (87.2% sensitivity and 94.1% specificity), compared with 0.732 for routine MRI (71.8% sensitivity and 74.5% specificity) (P < .001). Using ADC threshold values of 1.018 × 10 mm/s for the diagnosis of clivus recurrent NPC, the AUC of DWI was 0.984 (95.5% sensitivity and 91.7% specificity) compared with 0.558 for routine MRI (63.6% sensitivity and 47.9% specificity) (P < .001).DWI has a higher diagnostic value for recurrent NPC than MRI. DWI can increase the diagnosis sensitivity and specificity of locally recurrent NPC.
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Yang F, Luo N, Lau T, Yu ZL, Foo MWY, Griva K. Health-Related Quality of Life in Patients Treated with Continuous Ambulatory Peritoneal Dialysis and Automated Peritoneal Dialysis in Singapore. Pharmacoecon Open 2018; 2:203-208. [PMID: 29623617 PMCID: PMC5972117 DOI: 10.1007/s41669-017-0046-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE This study aimed to compare the health-related quality of life (HRQOL) in patients with end-stage renal disease (ESRD) treated with continuous ambulatory peritoneal dialysis (CAPD) and automated peritoneal dialysis (APD) in Singapore. METHODS The data used in this study were from two cross-sectional surveys of ESRD patients. HRQOL was assessed using the Kidney Disease Quality of Life (KDQOL) instrument. Socio-demographic characteristics and clinical data were collected. The physical component summary (PCS) and mental component summary (MCS) scores, kidney disease component summary (KDCS) score and its three scales (symptoms, effects, burden), and one health utility score [EuroQol 5-dimension (EQ-5D)] were calculated and compared between CAPD and APD using multivariate linear regression. RESULTS In total, 266 patients were included, with 145 on CAPD (mean age 60.8 years) and 121 on APD (mean age 57.4 years). After adjustment for all variables collected, APD patients had significant higher scores in PCS and KDQOL symptoms than CAPD patients, suggesting that APD was associated with better physical health and milder dialysis-related symptoms. CONCLUSION The HRQOL of CAPD and APD patients was largely equivalent in Singapore, but APD patients seemed to experience better physical health and be less bothered by dialysis-related symptoms.
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Affiliation(s)
- F Yang
- Manchester Centre for Health Economics, University of Manchester, Manchester, UK
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - T Lau
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore, Singapore
| | - Z L Yu
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore, Singapore
| | - M W Y Foo
- Department of Renal Medicine, Singapore General Hospital, Singapore, Singapore
| | - K Griva
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore, Singapore.
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Xu X, Ni S, Fu M, Zheng X, Luo N, Weng W. Numerical investigation of airflow, heat transfer and particle deposition for oral breathing in a realistic human upper airway model. J Therm Biol 2017; 70:53-63. [DOI: 10.1016/j.jtherbio.2017.05.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 04/30/2017] [Accepted: 05/17/2017] [Indexed: 11/26/2022]
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Cheok S, Yee F, Song Ma JY, Leow R, Ho MSL, Yew YW, Tay YK, Rebello SA, Luo N, Koh MJA. Prevalence and descriptive epidemiology of atopic dermatitis and its impact on quality of life in Singapore. Br J Dermatol 2017; 178:276-277. [PMID: 28415136 DOI: 10.1111/bjd.15587] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S Cheok
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - F Yee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - J Y Song Ma
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - R Leow
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Y W Yew
- National Skin Center, Singapore
| | - Y K Tay
- Dermatology Department, Changi General Hospital, Singapore
| | - S A Rebello
- Saw Swee Hock School of Public Health, Singapore
| | - N Luo
- Saw Swee Hock School of Public Health, Singapore
| | - M J A Koh
- Dermatology Service, KK Women's & Children's Hospital, Singapore
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Zhu ZJ, Wei LP, Xu ZX, Xu HJ, Liu Q, Luo N. [Clinical study of aged patients with secondary benign paroxysmal positional vertigo]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:670-675. [PMID: 28910891 DOI: 10.3760/cma.j.issn.1673-0860.2017.09.007] [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 investigate the clinical features and evaluate the efficacy of manual reduction in treatment of age patients with secondary benign paroxysmal positional vertigo (s-BPPV). Methods: Thirty-two cases of aged patients ( the s-BPPV group: including 19 cases of female and 13 males, age from 60 to 86 years old)with secondary benign paroxysmal positional vertigo from Jul. 2013 to Sep. 2015 in our hospital were retrospectively analyzed. The results were compared with 121 patients( the primary group: including 82 cases of female and 39males, aged from 60 to 86 years old)with aged primary benign paroxysmal positional vertigo(p -BPPV). All the patients were followed up for 12 months. Statistical data analysis was carried out with SPSS 19.0. Results: 20.92%(32/153)of all the observed elderly patients with BPPV was the aged s-BPPV. The sex ratio and onset age had no significant difference between the two groups(χ(2)=0.79, P>0.05; t=0.37, P>0.05). The rate of two or more semicircular canal involvement in the secondary group(21.88%) was higher than that in primary group(6.61%)(χ(2)=6.67, P<0.05). Bilateral semicircular canals were involved in 5 of the 32 cases in secondary group(15.63%) and 4 of the 121 cases in aged primary group(3.31%), The difference was significant(χ(2)=6.94, P<0.05). The effective rate after first manual reduction was 57.50%(23/40)in secondary group and 82.31%(107/130)in primary group, the difference was significant(χ(2)=10.46, P<0.05). The total effective rate were 87.50%(35/40) after more than once manual reduction in secondary group and 91.54%(119/130) in primary group, the difference was not significant(χ(2)= 0.59, P>0.05). The numbers of circulation of the first successful manual reduction management were (3.9±1.3)times in secondary group and (2.1±1.1)times in primary group, the difference was significant(t=3.15, P<0.05). The recurrence rate was 37.50%(15/40) in the secondary group and 16.15%(21/130)in primary group after during follow-up for 12 months, the difference was statistically significant(χ(2)=8.35, P<0.05). Conclusions: It's shown that the aged patients with secondary BPPV is not rare in clinical practice, sudden deafness and head trauma are frequent more than other reasons. The aged patients with secondary BPPV are prone to injury in multi-semicircular and bilateral canal compared with the primary BPPV. The effective rate after first manual reduction of secondary BPPV is lower than primary BPPV, it's needed more circulation of first success in manual reduction management. The total effective rates are not significant in two groups and recurrence rate is relatively high in secondary group.
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Affiliation(s)
- Z J Zhu
- Department of Otorhinolaryngology Head and Neck surgery, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan 250001, China
| | - L P Wei
- Department of Otorhinolaryngology Head and Neck surgery, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan 250001, China
| | - Z X Xu
- Department of Otorhinolaryngology Head and Neck surgery, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan 250001, China
| | - H J Xu
- Department of Otorhinolaryngology Head and Neck surgery, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan 250001, China
| | - Q Liu
- Department of Otorhinolaryngology Head and Neck surgery, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan 250001, China
| | - N Luo
- Department of Otorhinolaryngology Head and Neck surgery, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine , Jinan 250001, China
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Ji Y, Luo N, Jiang Y, Li Q, Wei W, Yang H, Liu J. Clinical utility of the additional use of blue dye for indocyanine green for sentinel node biopsy in breast cancer. J Surg Res 2017; 215:88-92. [PMID: 28688667 DOI: 10.1016/j.jss.2017.03.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 03/04/2017] [Accepted: 03/24/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND Indocyanine green (ICG) is widely used as a tracer in sentinel lymph node biopsy (SLNB) of patients with breast cancer. Whether SLNB performance can be improved by supplementing ICG with methylene blue dye remains controversial. This study compared the performance of SLNB when ICG was used alone or with blue dye. MATERIALS AND METHODS Consecutive patients with T1-3 primary breast cancer at our hospital were recruited into our study and randomized to undergo SLNB with ICG alone (n = 62) or with the combination of ICG and blue dye (n = 65). We compared the two methods in terms of identification rate, number and detection time of sentinel lymph nodes (SLNs) removed. RESULTS SLN identification rate were similar in the absence (95.2%) or presence of blue dye (98.5%, P = 0.578) but significantly, more average nodes were removed when blue dye was used (3.8 ± 1.5 versus 2.7 ± 1.2, P = 0.000), and the average time for detecting each SLN was significantly shorter (3.91 ± 1.87 versus 5.65 ± 2.95 min; P = 0.000). No patient in the study experienced severe adverse reactions or complications. Recurrence of axillary node was detected in one patient (1.6%) using ICG alone but not in any patients using ICG and blue dye. CONCLUSIONS The efficiency and sensitivity of SLNB can be improved by combining ICG with blue dye.
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Affiliation(s)
- Yinan Ji
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Ningbin Luo
- Department of Radiology, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Yi Jiang
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Qiuyun Li
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Wei Wei
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Huawei Yang
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China
| | - Jianlun Liu
- Department of Breast Surgery, The Affiliated Tumor Hospital of Guangxi Medical University, Nanning, Guangxi, P.R. China.
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Luo N, Estrada VM, Sanders ME, Balko JM. Abstract P1-04-02: Improving immunotherapy response by epigenetic modulation. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-04-02] [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: 11/16/2022]
Abstract
Abstract
The presence of predicted neo-antigens in any given tumor is highly correlated with total somatic mutational burden of the same tumor genome. However, many potential neo-antigens are never transcribed, translated, or presented as antigens, partially because they lie in regions of the genome that are transcriptionally-repressed by cytosine methylation of promoter-CpG islands. Treatment with DNA methyltransferase inhibitors (DNMTi) can hypothetically lead to re-expression of many potential neo-antigens. Furthermore, the presence of neo-antigens have been linked to immunotherapy outcomes in patients. Our hypothesis is that tumors with reduced mutational burden can be maximized for neo-antigen presentation by activating transcription and translation of these sequences through DNMTi treatment. Our preliminary results showed that the DNMTi guadecitabine (SGI-110), a second-generation hypomethylating agent, treatment decreases methyl-cytosine in genomic DNA both in vitro and in vivo. In addition, SGI-110 treatment enhances MHC-II expression on murine mammary carcinoma MMTV-Neu cells upon IFN-γ stimulation in vitro and increases T-cell infiltration in vivo. Currently, we are performing whole-exome-sequencing and RNA-sequencing to track somatic mutations from DNA to RNA. We will further track somatic mutations from RNA→ MHC-presented peptide sequences using MHC immunoprecipitation followed by mass spectroscopy analysis. In addition, we will explore the role of guadecitabine therapeutic priming on response to αPD-L1 immunotherapy. These studies will provide a pre-clinical data to evaluate the potential for combined epigenetic and immune-therapy in a clinical trial for breast cancer.
Citation Format: Luo N, Estrada VM, Sanders ME, Balko JM. Improving immunotherapy response by epigenetic modulation [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-04-02.
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Affiliation(s)
- N Luo
- Medicine; Pathology Microbiology and Immunology; Breast Cancer Research Program; Cancer Biology, Vanderbilt-Ingram Cancer Center; Vanderbilt University Medical Center, Nashville, TN
| | - VM Estrada
- Medicine; Pathology Microbiology and Immunology; Breast Cancer Research Program; Cancer Biology, Vanderbilt-Ingram Cancer Center; Vanderbilt University Medical Center, Nashville, TN
| | - ME Sanders
- Medicine; Pathology Microbiology and Immunology; Breast Cancer Research Program; Cancer Biology, Vanderbilt-Ingram Cancer Center; Vanderbilt University Medical Center, Nashville, TN
| | - JM Balko
- Medicine; Pathology Microbiology and Immunology; Breast Cancer Research Program; Cancer Biology, Vanderbilt-Ingram Cancer Center; Vanderbilt University Medical Center, Nashville, TN
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Abstract
BACKGROUND Although tea consumption has been reported to have various health benefits in humans, its association with health-related quality of life (HRQOL) has not been investigated directly. We aimed to examine the relationship between tea consumption and HRQOL among older Chinese adults. METHODS We analyzed community-based cross-sectional data of 5,557 older Chinese individuals aged 60 years or older who participated in the Weitang Geriatric Diseases study. Information on tea consumption and HRQOL assessed by the European Quality of Life-5 dimensions (EQ-5D) were collected by questionnaires. We estimated the relationship of tea consumption and the EQ-5D index score using linear regression models and the association between tea consumption and self-reported EQ-5D health problems using logistic regression models. RESULTS The EQ-5D index score was higher for habitual tea drinkers than their counterparts. In multivariate linear analyses controlling for socio-demographic conditions, health conditions, and lifestyle habits, the differences in ED-5D index score between individuals with and without tea drinking habits was 0.012 (95% confidence interval, 0.006-0.017). In multivariate logistic analyses, habitual tea drinking was inversely associated with reporting of problems in EQ-5D dimensions mobility (odds ration [OR], 0.44; 95% CI: 0.23-0.84); pain/discomfort (OR, 0.74; 95% CI: 0.61-0.90); and anxiety/depression (OR, 0.60; 95% CI: 0.38-0.97). These associations were more evident for black or oolong tea than green tea. CONCLUSION Habitual tea consumption was associated with better HRQOL in older adults.
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Affiliation(s)
- C-W Pan
- Pei Wang, PhD, School of Public Health, Fudan University, Shanghai, China,
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Liu Z, Mingfang X, Li S, Luo N, Huang S, Wang D. Abstract PR501. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492885.87724.8b] [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: 11/05/2022]
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Luo N, Guo J, Chen L, Yang W, Qu X, Cheng Z. ARHGAP10, downregulated in ovarian cancer, suppresses tumorigenicity of ovarian cancer cells. Cell Death Dis 2016; 7:e2157. [PMID: 27010858 PMCID: PMC4823924 DOI: 10.1038/cddis.2015.401] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 11/17/2015] [Accepted: 11/30/2015] [Indexed: 12/14/2022]
Abstract
Rho GTPase-activating proteins (RhoGAPs) are implicated in the development and progression of ovarian cancer. ARHGAP10 is a member of RhoGAP proteins and inactivates Cdc42 by converting GTP-bound form to GDP-bound form. Here, we aimed to evaluate ARHGAP10 expression profile and functions in ovarian cancer. The decreased expression of ARHGAP10 was found in 77.3% (58/75) of ovarian cancer tissues, compared with their non-tumorous counterparts. Furthermore, overall survival in ovarian cancer patients with higher expression of ARHGAP10 was longer than those with lower expression. Ectopic expression of ARHGAP10 in two ovarian cancer cell lines with lower expression of ARHGAP10 (A2780 and HO-8910) dramatically suppressed cell proliferation in vitro. In nude mice, its stable overexpression significantly inhibited the tumorigenicity of A2780 cells. We further demonstrated that overexpression of ARHGAP10 significantly inhibited cell adhesion, migration and invasion, resulted in cell arrest in G1 phase of cell cycle and a significant increase of apoptosis. Moreover, ARHGAP10 interacted with Cdc42 and overexpression of ARHGAP10 inhibited the activity of Cdc42 in A2780 cells. Gene set enrichment analysis on The Cancer Genome Atlas dataset showed that KEGG cell cycle, replication and base excision repair (BER) pathways were correlatively with the ARHGAP10 expression, which was further confirmed in ovarian cancer cells by western blotting. Hence, ARHGAP10 may serve as a tumor suppressor through inactivating Cdc42, as well as inhibiting cell cycle, replication and BER pathways. Our data suggest an important role of ARHGAP10 in the molecular etiology of cancer and implicate the potential application of ARHGAP10 in cancer therapy.
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Affiliation(s)
- N Luo
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - J Guo
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - L Chen
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - W Yang
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - X Qu
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
| | - Z Cheng
- Department of Gynecology & Obstetrics, Yangpu Hospital, School of Medicine, Tongji University, Shanghai 200090, China.,Institute of Gynecological Minimally Invasive Medicine, School of Medicine, Tongji University, Shanghai 200090, China
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Wang P, Li MH, Liu GG, Thumboo J, Luo N. Do Chinese have similar health-state preferences? A comparison of mainland Chinese and Singaporean Chinese. Eur J Health Econ 2015; 16:857-863. [PMID: 25260384 DOI: 10.1007/s10198-014-0635-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 09/17/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Little is known about whether health-state preferences differ among Chinese populations. This study compared the preference values for EQ-5D-5L health states between mainland Chinese and Singaporean Chinese. METHODS The preference values for ten EQ-5D-5L health states were elicited from general population samples of mainland Chinese and Singaporeans. In computer-assisted self-interviews, each participant completed five time trade-off (TTO) tasks to value five different EQ-5D-5L health states. The difference in TTO values between mainland Chinese and Singaporean Chinese was examined using random-effects linear regression and logistic regression models. RESULTS A total of 194 eligible mainland Chinese and 145 eligible Singaporean Chinese provided data for this study. All ten health states considered, the mean TTO value was 0.18 for Singaporean Chinese and 0.35 for mainland Chinese, with the unadjusted and adjusted difference [95% confidence interval (CI)] being -0.17 (-0.28, -0.07) and -0.16 (-0.27, -0.05). Singaporean Chinese had substantially lower TTO values than mainland Chinese for states with severe or extreme problems, with the adjusted difference being -0.30 (95% CI -0.42, -0.17). On the other hand, Singaporean Chinese and mainland Chinese had similar TTO values for states with mild or moderate problems, with the adjusted (95% CI) difference being 0.04 (-0.07, 0.15). Logistic regression analysis showed that Singaporean Chinese were more likely to rate health states with severe or extreme problems as worse than death compared to mainland Chinese. CONCLUSIONS Mainland Chinese and Singaporean Chinese have different preferences for EQ-5D-5L health states, supporting the development of local value sets for the EQ-5D-5L instrument for the two populations.
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Affiliation(s)
- P Wang
- Saw Swee Hock School of Public Health, National University of Singapore, 16 Medical Drive, Block MD3, Singapore, 117597, Singapore
| | - M H Li
- Department of Pharmaceutical Health Services Research, University of Maryland, Baltimore, MD, USA
| | - G G Liu
- National School of Development, Peking University, Beijing, China
| | - J Thumboo
- Department of Rheumatology and Immunology, Singapore General Hospital, Singapore, Singapore
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, 16 Medical Drive, Block MD3, Singapore, 117597, Singapore.
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Shen W, Chang A, Wang J, Zhou W, Gao R, Li J, Xu Y, Luo X, Xiang R, Luo N, Stupack DG. TIFA, an inflammatory signaling adaptor, is tumor suppressive for liver cancer. Oncogenesis 2015; 4:e173. [PMID: 26501855 PMCID: PMC4632091 DOI: 10.1038/oncsis.2015.30] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/29/2015] [Accepted: 08/07/2015] [Indexed: 02/07/2023] Open
Abstract
TIFA (TNF receptor associated factor (TRAF)-interacting protein with a Forkhead-associated (FHA) domain), also called T2BP, was first identified using a yeast two-hybrid screening. TIFA contains a FHA domain, which directly binds phosphothreonine and phosphoserine, and a consensus TRAF6-binding motif. TIFA-mediated oligomerization and poly-ubiquitinylation of TRAF6 mediates signaling downstream of the Tumor necrosis factor alpha receptor 1 (TNFaR-I) and interleukin-1/Toll-like receptor 4 (TLR4) pathways. Examining TIFA expression in hepatocellular carcinoma (HCC) tissues microarrays, we noted marked decreases TIFA reactivity in tumor versus control samples. In agreement, we found that HCC cell lines show reduced TIFA expression levels versus normal liver controls. Reconstituting TIFA expression in HCC cell lines promoted two independent apoptosis signaling pathways: the induction of p53 and cell cycle arrest, and the activation of caspase-8 and caspase-3. In contrast, the expression of a non-oligomerizing mutant of TIFA impacted cells minimally, and suppression of TIFA expression protected cells from apoptosis. Mice bearing TIFA overexpression hepatocellular xenografts develop smaller tumors versus TIFA mutant tumors; terminal deoxynucleotidyl transferase dUTP nick end labeling staining demonstrates increased cell apoptosis, and decreased proliferation, reflecting cell cycle arrest. Interestingly, p53 has a greater role in decreased proliferation than cell death, as it appeared dispensable for TIFA-induced cell killing. The findings demonstrate a novel suppressive role of TIFA in HCC progression via promotion of cell death independent of p53.
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Affiliation(s)
- W Shen
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - A Chang
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - J Wang
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - W Zhou
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - R Gao
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - J Li
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - Y Xu
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - X Luo
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - R Xiang
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - N Luo
- Department of Immunology, School of Medicine, Nankai University, Tianjin, China
| | - D G Stupack
- Department of Reproductive Medicine, San Diego School of Medicine, University of California, San Diego, San Diego, CA, USA
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Wan S, He HG, Mak A, Lahiri M, Luo N, Cheung P, Wang W. AB1211-HPR Health-Related Quality of Life and its Predictors Among Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1223] [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: 11/04/2022]
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Yang F, Griva K, Lau T, Vathsala A, Lee E, Ng HJ, Mooppil N, Foo M, Newman SP, Chia KS, Luo N. Health-related quality of life of Asian patients with end-stage renal disease (ESRD) in Singapore. Qual Life Res 2015; 24:2163-71. [PMID: 25800727 DOI: 10.1007/s11136-015-0964-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/03/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND This study aimed to identify factors associated with the health-related quality of life (HRQOL) of multiethnic Asian end-stage renal disease (ESRD) patients treated with dialysis. The role of dialysis modality was also explored. METHODS Data used in this study were from two cross-sectional surveys of Singaporean ESRD patients on haemodialysis (HD) or peritoneal dialysis (PD). In both surveys, participants were assessed using the kidney disease quality of life (KDQOL) instrument and questions assessing socio-demographic characteristics. Clinical data including co-morbidity (measured by Charlson comorbidity index [CCI]), albumin level, haemoglobin level, and dialysis-related variables (e.g. dialysis vintage and dialysis adequacy) were retrieved from medical records. The 36-item KDQOL (KDQOL-36) was used to generate three summary scores (physical component summary [PCS], mental component summary [MCS] and kidney disease component summary [KDCS]) and two health utility scores (Short Form 6-dimension [SF-6D] and EuroQol 5-dimension [EQ-5D]). Linear regression analysis was performed to examine the association of factors with each of the HRQOL scale scores. RESULTS Five hundred and two patients were included in the study (mean age 57.1 years; male 52.4 %; HD 236, PD 266). Mean [standard deviation (SD)] PCS, MCS and KDCS scores were 37.9 (9.7), 46.4 (10.8) and 57.6 (18.1), respectively. Mean (SD) health utility score was 0.66 (0.12) for SF-6D and 0.60 (0.21) for EQ-5D. In multivariate regression analysis, factors found to be significantly associated with better HRQOL included: young (<45 years) or old age (>60 years), low CCI (<5), high albumin (≥37 g/l) and high haemoglobin (≥11 g/dl) with PCS; long dialysis vintage (≥3.5 years) with MCS; old age, Malay ethnicity and PD modality with KDCS; low CCI, high albumin and high haemoglobin with EQ-5D and high albumin with SF-6D. CONCLUSIONS Clinical characteristics are better predictors of HRQOL in ESRD patients than socio-demographics in Singapore. Dialysis modality has no impact on the health utility of those patients.
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Affiliation(s)
- F Yang
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive 2, Singapore, 117549, Singapore
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Chen FR, Zhai ZF, Shi XW, Feng L, Zhong BY, Yan WJ, Wang H, Chen Y, You Y, Luo N, Zhang DM, Hao F. Association of PELI1 polymorphisms in systemic lupus erythematosus susceptibility in a Chinese population. Lupus 2015; 24:1037-44. [PMID: 25712248 DOI: 10.1177/0961203315571463] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Accepted: 01/12/2015] [Indexed: 01/08/2023]
Abstract
Objective Studies in animal models have indicated that Pellino 1 is involved in inflammatory and autoimmune diseases, such as systemic lupus erythematosus (SLE). The current study was designed to determine whether PELI1 confers genetic susceptibility to SLE in humans, as assessed in a Chinese Han population. Methods Blood samples were drawn from patients diagnosed with SLE and healthy volunteers. Three single nucleotide polymorphism (SNP) loci with a minor allele frequency of at least 0.05 were chosen to evaluate the correlation between PELI1 genotype and the incidence of SLE. Results There was a significant difference in the frequency distribution of the rs329497 allele between the SLE patients and the healthy controls (A vs. G; Bonferroni corrected p = 0.036, odds ratio = 0.75, 95% confidence interval = 0.60–0.94). No differences in the genotype and allele frequencies of other SNP loci were observed between the two groups. Furthermore, the alleles and genotypes of the three SNPs were not associated with lupus nephritis. Conclusion In the Chinese Han population, PELI1 SNPs may be associated with SLE susceptibility.
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Affiliation(s)
- F-R Chen
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Z-F Zhai
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - X-W Shi
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - L Feng
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - B-Y Zhong
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - W-J Yan
- Department of Dermatology, Affiliated Hospital of Guilin Medical College, Guilin, China
| | - H Wang
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Y Chen
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Y You
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - N Luo
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - D-M Zhang
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - F Hao
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
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Luo N, Wang Y, How CH, Wong KY, Shen L, Tay EG, Thumboo J, Herdman M. Cross-cultural measurement equivalence of the EQ-5D-5L items for English-speaking Asians in Singapore. Qual Life Res 2014; 24:1565-74. [PMID: 25394895 DOI: 10.1007/s11136-014-0864-8] [Citation(s) in RCA: 9] [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] [Accepted: 11/10/2014] [Indexed: 11/30/2022]
Abstract
PURPOSE To investigate how the response labels of the 5-level EQ-5D (EQ-5D-5L) items are interpreted and used by English-speaking Chinese and non-Chinese Singaporeans, as a means to assessing whether those items are cross-culturally equivalent health-status measures in this Asian population. METHODS In face-to-face interviews, Chinese, Malay and Indian visitors to a primary care institution in Singapore were asked to rate the relative severity conveyed by EQ-5D-5L response labels, each containing the keyword of 'no(t),' 'slight(ly),' 'moderate(ly),' 'severe(ly),' or 'unable'/'extreme(ly),' using a 0-100 numerical rating scale. Participants were also asked to describe 25 hypothetical health states using the EQ-5D-5L response labels. Differences between Chinese and Malay/Indian participants in label interpretation and selection were examined using multivariate regression analysis to adjust for participant characteristics. RESULTS The differences in adjusted mean severity scores for individual EQ-5D-5L labels between Chinese (n = 148) and non-Chinese (Malay: n = 53; Indian: n = 56) participants ranged from 0.0 to 9.0. The relative severity of the labels to the participants supported the ordinality of the EQ-5D-5L response labels and was similar across ethnic groups. Chinese and non-Chinese participants selected similar response labels to describe each hypothetical health state, with the adjusted odds ratios of selecting any type of the five response labels for non-Chinese versus Chinese participants ranging from 0.92 to 1.15 (p > 0.05 for all). CONCLUSIONS The EQ-5D-5L items are likely to generate equivalent health outcomes between English-speaking Chinese and non-Chinese Singaporeans.
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Affiliation(s)
- N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, 12 Science Drive 2, Block MD1, Singapore, 117549, Singapore,
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Zhong H, Deng X, Song Z, Darsow U, Chen W, Chen S, Luo N, Hao F. Immunological changes after ASIT in AD allergen-specific immunotherapy and their potential correlation with clinical response in patients with atopic dermatitis patients sensitized to house dust mite. J Eur Acad Dermatol Venereol 2014; 29:1318-24. [PMID: 25376542 DOI: 10.1111/jdv.12813] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 09/29/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Allergen-specific immunotherapy (ASIT) is the main treatment for inducing long-term immunological and clinical tolerance in patients with IgE-mediated allergic diseases. Recent open-label and controlled studies on the efficacy of ASIT in patients with atopic dermatitis (AD) have provided promising results. However, data about possible relationship between the improvement of clinical symptoms and changes of serum cytokines are limited. METHODS Seventy-nine patients with moderate to severe AD sensitized to house dust mite (HDM) were enrolled. Fifty-eight patients were treated with ASIT and 11 controls received only symptomatic treatment. The disease activity in AD patients was evaluated by using the patient-oriented eczema measure (POEM) system. Serum interleukin (IL)-4, IL-10, interferon (IFN)-γ, transforming growth factor (TGF) β1, total IgE, HDM-specific IgE (s-IgE) and HDM-specific IgG4 (s-IgG4) were measured before and after 2 years of therapy. RESULTS The mean patient-oriented eczema measure system (POEM) score of AD patients with ASIT significantly decreased after 2 years of treatment, compared to that in patients without ASIT. After ASIT, the serum levels of IL-10, TGF-β1, IFN-γ and s-IgG4 increased, while the level of IL-4 decreased. The change in the POEM score was negatively correlated with changes of serum concentration of TGF-β1, s-IgG4 and IFN-γ. Furthermore, s-IgG4 levels were positively correlated with changes in the IL-10 levels. No correlation between POEM score and serum IL-10 or IL-4 was observed. CONCLUSION Clinical symptoms and the quality of life of AD with HDM sensitization could be improved after 2 years of ASIT. Changes in serum IL-10, TGF-β1, s-IgG4 and IFN-γ might be considered as biomarkers to assist clinical evaluation of the therapeutic effects of ASIT in patients with AD.
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Affiliation(s)
- H Zhong
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - X Deng
- Department of Dermatology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Z Song
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - U Darsow
- Department of Dermatology and Allergy, Technische Universitaet Muenchen, Munich, Germany
| | - W Chen
- Department of Dermatology and Allergy, Technische Universitaet Muenchen, Munich, Germany
| | - S Chen
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - N Luo
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - F Hao
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, China
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38
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Affiliation(s)
- S H Kim
- Dankook University, Cheonan, South Korea
| | - M W Jo
- University of Ulsan, Seoul, South Korea
| | - J Ahn
- National Evidence-based health care Collaborating Agency, Seoul, South Korea
| | - S Shin
- National Evidence-based health care Collaborating Agency, Seoul, South Korea
| | - M Ock
- University of Ulsan, Seoul, South Korea
| | - J Park
- National Evidence-based Healthcare Collaborating Agency (NECA), Seoul, South Korea
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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39
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Yang F, Griva K, Lau T, Vathsala A, Lee E, Ng HJ, Mooppil N, Newman SP, Chia KS, Luo N. Health-Related Quality Of Life (Hrqol) Of Asian Patients With End-Stage Renal Disease (Esrd) In Singapore. Value Health 2014; 17:A471. [PMID: 27201352 DOI: 10.1016/j.jval.2014.08.1338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- F Yang
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - K Griva
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore
| | - T Lau
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore
| | - A Vathsala
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore
| | - E Lee
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore
| | - H J Ng
- Department of Psychology, Faculty of Arts and Social Sciences, National University of Singapore, Singapore
| | - N Mooppil
- National Kidney Foundation, Singapore
| | | | - K S Chia
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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Jin X, Liu G, Luo N, Li H, Guan H, Xie F. Impact of Demographics on Health Preferences in China: An Exploratory Analysis of China EQ-5D-5L Valuation Study. Value Health 2014; 17:A753. [PMID: 27202738 DOI: 10.1016/j.jval.2014.08.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- X Jin
- McMaster University, Hamilton, ON, Canada
| | - G Liu
- Guanghua School of Management, Peking University, Beijing, China
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - H Li
- China Pharmaceutical University, Nanjing, China
| | - H Guan
- Peking University, Beijing, China
| | - F Xie
- McMaster University, Hamilton, ON, Canada
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41
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Luo N, Wang Y, How CH, Wong KY, Tay EG, Thumboo J. A Comparison of Three Language Versions of the EQ-5D-5L Dimension Scales in Singapore. Value Health 2014; 17:A731. [PMID: 27202614 DOI: 10.1016/j.jval.2014.08.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Y Wang
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - C H How
- SingHealth Polyclinics, Singapore
| | - K Y Wong
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - E G Tay
- SingHealth Polyclinics, Singapore
| | - J Thumboo
- Singapore General Hospital, Outram, Singapore
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Wang P, Tai ES, Thumboo J, Hubertus V, Luo N. Does diabetes have an impact on health-state utility? A study of asians in singapore. Value Health 2014; 17:A746-A747. [PMID: 27202699 DOI: 10.1016/j.jval.2014.08.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- P Wang
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - E S Tai
- Yong Loo Lin School of Medicine, National University Health System, Singapore
| | - J Thumboo
- Singapore General Hospital, Outram, Singapore
| | - V Hubertus
- National University of Singapore, Singapore
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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Wang X, Luo N, Lamoureux E, Ang M. Economic Impact of Visual Impairment: A Pilot Study in Singapore. Value Health 2014; 17:A605-A606. [PMID: 27202100 DOI: 10.1016/j.jval.2014.08.2110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- X Wang
- National University of Singapore, Singapore
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - E Lamoureux
- University of Melbourne, Melbourne, Australia
| | - M Ang
- Singapore National Eye Center, Singapore
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Yang F, Lau T, Lee E, Vathsala A, Chia KS, Luo N. Comparison of the Preference-Based EQ-5D and SF-6D Health Indices in Multiethnic Asian Patients with End-Stage Renal Disease (ESRD). Value Health 2014; 17:A725. [PMID: 27202580 DOI: 10.1016/j.jval.2014.08.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- F Yang
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - T Lau
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore
| | - E Lee
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore
| | - A Vathsala
- Division of Nephrology, University Medicine Cluster, National University Health System, Singapore
| | - K S Chia
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - N Luo
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
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Nie C, Luo Y, Zhao X, Luo N, Tong A, Liu X, Yuan Z, Wang C, Wei Y. Caspase-9 mediates Puma activation in UCN-01-induced apoptosis. Cell Death Dis 2014; 5:e1495. [PMID: 25356864 PMCID: PMC4649536 DOI: 10.1038/cddis.2014.461] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 04/24/2014] [Revised: 09/17/2014] [Accepted: 09/18/2014] [Indexed: 02/05/2023]
Abstract
The protein kinase inhibitor 7-hydroxystaurosporine (UCN-01) is one of the most potent and frequently used proapoptotic stimuli. The BH3-only molecule of Bcl-2 family proteins has been reported to contribute to UCN-01-induced apoptosis. Here we have found that UCN-01 triggers Puma-induced mitochondrial apoptosis pathway. Our data confirmed that Akt-FoxO3a pathway mediated Puma activation. Importantly, we elucidate the detailed mechanisms of Puma-induced apoptosis. Our data have also demonstrated that caspase-9 is a decisive molecule of Puma induction after UCN-01 treatment. Caspase-9 mediates apoptosis through two kinds of feedback loops. On the one hand, caspase-9 enhances Puma activation by cleaving Bcl-2 and Bcl-xL independent of caspase-3. On the other hand, caspase-9 directly activated caspase-3 in the presence of caspase-3. Caspase-3 could cleave XIAP in an another positive feedback loop to further sensitize cancer cells to UCN-01-induced apoptosis. Therefore, caspase-9 mediates Puma activation to determine the threshold for overcoming chemoresistance in cancer cells.
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Affiliation(s)
- C Nie
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - Y Luo
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - X Zhao
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - N Luo
- Nankai University School of Medicine/Collaborative Innovation Center of Biotherapy, Tianjin 300071, People's Republic of China
| | - A Tong
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - X Liu
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - Z Yuan
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - C Wang
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
| | - Y Wei
- The State Key Laboratory of Biotherapy and Cancer Center/Collaborative Innovation Center of Biotherapy, West China Hospital and College of Life Science, Sichuan University, No. 17 People's South Road, Chengdu 610041, People's Republic of China
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46
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Affiliation(s)
- K.C. Jiang
- Department of Endocrinology, Nanjing PLA General Hospital, Jiangsu Province, People's Republic of China
| | - N. Luo
- Department of Endocrinology, Nanjing PLA General Hospital, Jiangsu Province, People's Republic of China
| | - Y.C. Chen
- Department of Endocrinology, Nanjing PLA General Hospital, Jiangsu Province, People's Republic of China
| | - L. Liu
- Department of Endocrinology, Nanjing PLA General Hospital, Jiangsu Province, People's Republic of China
| | - A.P. Wang
- Department of Endocrinology, Nanjing PLA General Hospital, Jiangsu Province, People's Republic of China
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Zhu X, Walton RG, Tian L, Luo N, Ho SR, Fu Y, Garvey WT. Prostaglandin A2 enhances cellular insulin sensitivity via a mechanism that involves the orphan nuclear receptor NR4A3. Horm Metab Res 2013; 45:213-20. [PMID: 23104421 PMCID: PMC4116744 DOI: 10.1055/s-0032-1327619] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We have previously reported that members of the NR4A family of orphan nuclear receptors can augment insulin's ability to stimulate glucose transport in adipocytes. In the current study, we endeavored to test for an insulin-sensitizing effect in muscle cells and to identify a potential transactivator. Lentiviral constructs were used to engineer both hyperexpression and shRNA silencing of NR4A3 in C2C12 myocytes. The NR4A3 hyper-expression construct led to a significant increase in glucose transport rates in the presence of maximal insulin while the NR4A3 knock-down exhibited a significant reduction in insulin-stimulated glucose transport rates. Consistently, insulin-mediated AKT phosphorylation was increased by NR4A3 hyperexpression and decreased following shRNA NR4A3 suppression. Then, we examined effects of prostaglandin A2 (PGA2) on insulin action and NR4A3 transactivation. PGA2 augmented insulin-stimulated glucose uptake in C2C12 myocytes and AKT phosphorylation after 12-h treatment, without significant effects on basal transport or basal AKT phosphorylation. More importantly, we demonstrated that PGA2 led to a greater improvement in insulin-stimulated glucose rates in NR4A3 overexpressing C2C12 myocytes, when compared with Lac-Z controls stimulated with insulin and PGA2. Moreover, the sensitizing effect of PGA2 was significantly diminished in NR4A3 knockdown myocytes compared to scramble controls. These results show for the first time that: (i) PGA2 augments insulin action in myocytes as manifested by enhanced stimulation of glucose transport and AKT phosphorylation; and (ii) the insulin sensitizing effect is dependent upon the orphan nuclear receptor NR4A3.
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Affiliation(s)
- X Zhu
- Department of Cell Biology, University of Alabama at Birmingham, Birmingham, AL 35294-3360, USA.
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Luo N, Su D, Jin G, Liu L, Zhu X, Xie D, Liu Y. Apparent diffusion coefficient ratio between axillary lymph node with primary tumor to detect nodal metastasis in breast cancer patients. J Magn Reson Imaging 2013; 38:824-8. [PMID: 23440958 DOI: 10.1002/jmri.24031] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Accepted: 12/12/2012] [Indexed: 11/07/2022] Open
Affiliation(s)
- Ningbin Luo
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
| | - Danke Su
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
| | - Guanqiao Jin
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
| | - Lidong Liu
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
| | - Xuna Zhu
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
| | - Dong Xie
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
| | - Younan Liu
- Department of Radiology; Affiliated Cancer Hospital of Guangxi Medical University; Nanning People's Republic of China
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Di W, Shi X, Zhu Y, Tao Y, Qi W, Luo N, Xiao Z, Yi C, Miao J, Zhang A, Zhang X, Fang Y. Overuse of paracetamol caffeine aspirin powders affects cerebral glucose metabolism in chronic migraine patients. Eur J Neurol 2012; 20:655-62. [PMID: 23114018 DOI: 10.1111/ene.12018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Accepted: 09/18/2012] [Indexed: 01/22/2023]
Affiliation(s)
- W. Di
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - X. Shi
- Department of Nuclear Medicine; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - Y. Zhu
- Zhongshan Ophthalmic Center; Sun Yat-sen University; Guangzhou China
| | - Y. Tao
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - W. Qi
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - N. Luo
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - Z. Xiao
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - C. Yi
- Department of Nuclear Medicine; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - J. Miao
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - A. Zhang
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - X. Zhang
- Department of Nuclear Medicine; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
| | - Y. Fang
- Department of Neurology; the First Affiliated Hospital; Sun Yat-sen University; Guangzhou China
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Wang P, Fu AZ, Wee HL, Lee J, Tai ES, Thumboo J, Luo N. Predicting preference-based SF-6D index scores from the SF-8 health survey. Qual Life Res 2012; 22:1675-83. [DOI: 10.1007/s11136-012-0284-6] [Citation(s) in RCA: 5] [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] [Accepted: 10/01/2012] [Indexed: 10/27/2022]
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