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Yu ZP, Jian ZY, Sun AN, Chen BA, Ge Z. The CSN5/HSF/SPI1/PU.1 Axis Regulates Cell Proliferation in Hypocellular Myelodysplastic Syndrome Patients. J Pediatr Hematol Oncol 2023; 45:e873-e878. [PMID: 37526438 PMCID: PMC10521780 DOI: 10.1097/mph.0000000000002712] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 05/20/2023] [Indexed: 08/02/2023]
Abstract
OBJECTIVE This study explored the relationship between the activation of the jak/stat3 signaling pathway and the CSN5 gene transcript and protein expression levels in the hematopoietic stem cells of patients with myelodysplastic syndromes (MDSs). This study also aimed to investigate the correlation between the expression level of CSN5 and the deubiquitination of HSF1, as well as the transcript level of the spi1/pu.1 genes to explore the pathogenesis of MDS. MATERIALS AND METHODS We isolated cells from normal individuals and MDS patients, and the mRNA and protein expression levels of spi1/pu.1 in cd34+ cells (hematopoietic stem cells) were measured by PCR and western blotting, respectively. A ChIP assay was used to detect the binding of HSF1 to the spi1/pu.1 promoter in cd34+ cells. The ubiquitination of HSF1 in cd34+ cells was detected by CO-IP. The binding of HSF1 and Fbxw7α was detected in in cd34+ cells by CO-IP. The binding of HSF1 and CSN5 was evaluated. A luciferase reporter assay was used to detect the effect of STAT3 on CSN5 promoter activation in cd34+ cells. Western blotting was used to detect the phosphorylation of STAT3 in cd34+ cells of MDS patients. The binding of STAT3 and C/EBP beta in cd34+ cells was detected by CO-IP. RESULTS Inhibition of SPI1/PU.1 expression was observed in MDS samples with low proliferation ability. Further experiments proved that phosphorylation of STAT3 affected CSN5 function and mediated the ubiquitination of HSF, the upstream regulator of SPI1/PU.1 transcription, which led to the inhibition of SPI1/PU.1 expression. Restoration of CSN5 rescued the inhibition of HSF1 ubiquitination, causing SPI1/PU.1 transcription to resume and increasing SPI1/PU.1 expression, promoting the recovery of cell proliferation in hypocellular MDS. CONCLUSIONS Our research revealed the regulatory role of the CSN5/HSF/SPI1/PU.1 axis in hypocellular MDS, providing a probable target for clinical intervention.
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Affiliation(s)
- Zheng-Ping Yu
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
| | - Zi-Ying Jian
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
| | - Ai-Ning Sun
- Hematology Division, Suzhou Medical University, Suzhou, China
| | - Bao-An Chen
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
| | - Zheng Ge
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing
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Zhu L, Huang ZQ, Wang ZW, Yang XP, Hong JB, Yang ZZ, Yu ZP, Cao RL, He JL, Chen YX. A comparative study on the application of different endoscopic diagnostic methods in the differential diagnosis of benign and malignant bile duct strictures. Front Med (Lausanne) 2023; 10:1143978. [PMID: 37521338 PMCID: PMC10373872 DOI: 10.3389/fmed.2023.1143978] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 06/22/2023] [Indexed: 08/01/2023] Open
Abstract
Objective To compare the diagnostic value of cytobrush, ERCP-guided biopsy, SpyGlass direct visual impression and SpyGlass-guided biospy (SpyBite) in the differential diagnosis of benign and malignant bile duct strictures. Methods The data of 1,008 patients who were clinically diagnosed with indeterminate biliary strictures and underwent ERCP-guided biopsy, cytobrush, SpyGlass direct visual impression or SpyBite at the First Affiliated Hospital of Nanchang University between January 2010 and December 2019 were collected and analyzed retrospectively. The final diagnose was determined by surgical pathological specimen or follow-up (Malignant stricture can be identified if the stricture showed malignant progression during one year of follow-up). The differential diagnostic value of the above endoscopic diagnostic methods was evaluated by means of sensitivity, specificity, accuracy, positive predictive value, negative predictive value, etc. and safety was evaluated by the incidence rate of adverse events. Results In terms of sensitivity, standard biopsy group (48.6%) and SpyBite group (61.5%) were significantly higher than cytobrush group (32.0%), and visual impression group (100%) was significantly higher than any other group. As far as specificity was concerned, cytobrush group (99.0%), standard biopsy group (99.3%) and the SpyBite group (100%) were significantly higher than visual impression (55.6%), but there was no statistical difference among the three groups above. As far as accuracy was concerned, standard biopsy group (65.3%), and SpyBite group (80.0%) were significantly higher than cytobrush group (44.4%), and SpyBite group (80.0%) was significantly higher than visual impression group (54.8%). In terms of safety, visual impression group and SpyBite group were significantly higher than cytobrush group and standard biopsy group in post-ERCP cholangitis. Conclusion SpyBite combined with SpyGlass-guided visual impression was better for differential diagnosis of benign and malignant bile duct strictures in terms of sensitivity and accuracy compared with conventional endoscopic diagnostic methods such as cytobrush and standard biopsy. Furthmore, the incidence rates of adverse events after SpyGlass examination was similar to those after conventional endoscopic diagnostic methods except for higher cholangitis, which could be controlled by antibiotics and might be avoided by adequate biliary drainage.
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Affiliation(s)
- Liang Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Center for Gastroenterology, Nanchang, China
| | - Zhi-Quan Huang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhen-Wen Wang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xue-Ping Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jun-Bo Hong
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Center for Gastroenterology, Nanchang, China
| | - Zhen-Zhen Yang
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Center for Gastroenterology, Nanchang, China
| | - Zheng-Ping Yu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Rong-Lai Cao
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jin-Li He
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - You-Xiang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Clinical Research Center for Gastroenterology, Nanchang, China
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Wei FF, Chen SL, Chen C, Yu ZP, Zhou YY, Xu TY, Wu YZ, Dong YG, Liu C. [Associations of all-cause mortality with admission blood pressure variability during multiple hospitalizations in acute decompensated heart failure]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:377-383. [PMID: 37057324 DOI: 10.3760/cma.j.cn112148-20230110-00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Objective: To investigate whether admission blood pressure (BP) variability during multiple hospitalizations is associated with all-cause mortality independent of baseline BP in acute decompensated heart failure (ADHF). Methods: Patients with ADHF admitted to the Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University from September 2013 to December 2017 were retrospectively enrolled. The risk of all-cause mortality associated with indices of BP variability, including mean admission BPs, standard deviation of BP and coefficient of variation of BP during multiple hospitalizations was assessed, using Cox regression model. Results: A total of 1 006 ADHF patients (mean aged (69.3±13.5) years; 411 (40.8%) female; 670 (66.6%) with preserved ejection fraction) were enrolled. During a median follow-up of 1.54 years, 47.0% of patients died. In all ADHF patients, after adjusting for confounding factors, for every 1-standard deviation (SD) increase in SD and coefficient of variation (CV) of systolic BP, the risk of all-cause mortality increased by 10% and 11%, respectively (SD: HR, 1.10, 95%CI, 1.01-1.21, P=0.029, CV: HR, 1.11, 95%CI, 1.02-1.21, P=0.017); for every 1-SD increase in the mean of diastolic BP, the risk of all cause mortality decreased by 25% (HR, 0.75; 95%CI, 0.65-0.87; P<0.001). In ADHF patients with preserved ejection fraction, after accounted for potential confounders, higher SD and CV of admitted systolic and diastolic BP were significantly associated with higher risk of all-cause mortality, regardless of whether confounding factors were adjusted (P≤0.049); After adjusting for confounding factors, the risk of all-cause mortality increased by 18% and 19% for every 1-SD increase in SD and CV of systolic BP, while the risk of all-cause mortality increased by 11% and 15% for every 1-SD increase in SD and CV of diastolic BP. In ADHF patients with reduced ejection fraction, after adjusting for confounding factors, the higher the mean admission systolic BP during multiple hospitalizations, the lower the risk of total mortality (HR, 0.68; 95%CI, 0.47-1.00; P=0.049). Conclusions: In patients with ADHF, independent of baseline BP, BP variability during multiple hospitalizations was strong predictor of all-cause mortality.
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Affiliation(s)
- F F Wei
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - S L Chen
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - C Chen
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - Z P Yu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - Y Y Zhou
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - T Y Xu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - Y Z Wu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - Y G Dong
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
| | - C Liu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, National Health Commission Key Laboratory of Assisted Circulation (Sun Yat-Sen University), Guangzhou 510080, China
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Yu ZP, Zhu L, Yang XP, Cao RL, Chen YX. [Efficacy and safety of endoscopic retrograde cholangiopancreatography in children]. Zhonghua Er Ke Za Zhi 2022; 60:1295-1301. [PMID: 36444433 DOI: 10.3760/cma.j.cn112140-20221028-00918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the efficacy and safety of endoscopic retrograde cholangiopancreatography (ERCP) in the diagnosis and treatment of biliary and pancreatic diseases in children. Methods: The clinical data of 127 children who were treated with ERCP in the First Affiliated Hospital of Nanchang University from January 2007 to July 2021 were analyzed. According to the diseases they suffered from, the children were divided into biliary group and pancreatic group. The operation times, technical success rate, diagnosis, interventions and post-ERCP complications between the groups were compared by t-test or χ2 test. The risk factors of post-ERCP pancreatitis (PEP) were analyzed by multivariate Logistic regression. Results: A total of 127 children, including 54 males and 73 females, with a median age of 14 years at first ERCP, were included in this study. ERCP was performed in 181 cases, with a success rate of 98.3% (178/181). In pre-ERCP imaging examination, the positive diagnostic rates of ultrasound, CT and magnetic resonance cholangiopancreatography (MRCP) for biliary and pancreatic diseases were 54.1% (53/98), 56.1% (37/66) and 79.3% (88/111), respectively. MRCP had the highest positive diagnostic rate, and the difference among the three measures was statistically significant (χ2=17.33, P<0.001). The most common indications for ERCP in biliary and pancreatic diseases were choledocholithiasis (77.0%, 107/139) and congenital structural abnormalities of the pancreas (31.0%, 13/42), respectively. After ERCP, the abdominal pain was dramatically relieved and the liver function was significantly improved (all P<0.001). The blood amylase level of the children with pancreatic diseases was significantly lower than that before ERCP (t=7.73, P<0.001). The overall incidence of post-ERCP complications was 12.2% (22/181), of which post-ERCP pancreatitis (PEP) was the most common (7.2%, 13/181). The incidence of PEP was significantly higher in the pancreatic group than in the biliary group (16.7% (7/42) vs. 4.3% (6/139),χ2=7.38, P=0.007). Multivariate Logistic regression analysis showed that young age was the independent risk factor of PEP (OR=0.80, 95%CI 0.67-0.96). Conclusions: MRCP is the first choice for pre-ERCP imaging examination of biliary and pancreatic diseases in children. ERCP can be safely and effectively used in the diagnosis and treatment of biliary and pancreatic diseases in children, with a high success rate and obvious alleviation of symptoms.
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Affiliation(s)
- Z P Yu
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi Clinical Research Center for Gastroenterology, Nanchang 330006, China
| | - L Zhu
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi Clinical Research Center for Gastroenterology, Nanchang 330006, China
| | - X P Yang
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi Clinical Research Center for Gastroenterology, Nanchang 330006, China
| | - R L Cao
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi Clinical Research Center for Gastroenterology, Nanchang 330006, China
| | - Y X Chen
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi Clinical Research Center for Gastroenterology, Nanchang 330006, China
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Zhang YJ, Mu ZL, Deng P, Liang YD, Wu LC, Yang LL, Zhou Z, Yu ZP. 8-Formylophiopogonanone B induces ROS-mediated apoptosis in nasopharyngeal carcinoma CNE-1 cells. Toxicol Res (Camb) 2021; 10:1052-1063. [PMID: 34733490 DOI: 10.1093/toxres/tfab087] [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: 05/21/2021] [Revised: 07/28/2021] [Accepted: 08/05/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the leading causes of death in the world. It is very important to find drugs with high efficiency, low toxicity, and low side effects for the treatment of cancer. Flavonoids and their derivatives with broad biological functions have been recognized as anti-tumor chemicals. 8-Formylophiopogonanone B (8-FOB), a naturally existed homoisoflavonoids with rarely known biological functions, needs pharmacological evaluation. In order to explore the possible anti-tumor action of 8-FOB, we used six types of tumor cells to evaluate in vitro effects of this agent on cell viability and tested the effects on clone formation ability, scratching wound-healing, and apoptosis. In an attempt to elucidate the mechanism of pharmacological action, we examined 8-FOB-induced intracellular oxidative stress and -disrupted mitochondrial function. Results suggested that 8-FOB could suppress tumor cell viability, inhibit cell migration and invasion, induce apoptosis, and elicit intracellular ROS production. Among these six types of tumor cells, the nasopharyngeal carcinoma CNE-1 cells were the most sensitive cancer cells to 8-FOB treatment. Intracellular ROS production played a pivotal role in the anti-tumor action of 8-FOB. Our present study is the first to document that 8-FOB has anti-tumor activity in vitro and increases intracellular ROS production, which might be responsible for its anti-tumor action. The anti-tumor pharmacological effect of 8-FOB is worthy of further investigation.
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Affiliation(s)
- Ya-Jing Zhang
- Medical College, Guangxi University, 100 University East Road, Xixiangtang District, Nanning, Guangxi, 530004, P. R. China
| | - Zhen-Lin Mu
- Medical College, Guangxi University, 100 University East Road, Xixiangtang District, Nanning, Guangxi, 530004, P. R. China
| | - Ping Deng
- Department of Occupational Health, Third Military Medical University, 30 Gaotanyan Zhengjie, Shapingba District, Chongqing, 400038, P. R. China
| | - Yi-Dan Liang
- Medical College, Guangxi University, 100 University East Road, Xixiangtang District, Nanning, Guangxi, 530004, P. R. China
| | - Li-Chuan Wu
- Medical College, Guangxi University, 100 University East Road, Xixiangtang District, Nanning, Guangxi, 530004, P. R. China
| | - Ling-Ling Yang
- Department of Occupational Health, Third Military Medical University, 30 Gaotanyan Zhengjie, Shapingba District, Chongqing, 400038, P. R. China
| | - Zhou Zhou
- Department of Environmental Medicine, and Department of Emergency Medicine of the First Affiliated Hospital, Zhejiang University, 866 Yuhangtang Road, Xihu District, Hangzhou, Zhejiang, 310000, P. R. China
| | - Zheng-Ping Yu
- Medical College, Guangxi University, 100 University East Road, Xixiangtang District, Nanning, Guangxi, 530004, P. R. China
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Qin LY, Zhang RC, Liang YD, Wu LC, Zhang YJ, Mu ZL, Deng P, Yang LL, Zhou Z, Yu ZP. Concentrations and health risks of heavy metals in five major marketed marine bivalves from three coastal cities in Guangxi, China. Ecotoxicol Environ Saf 2021; 223:112562. [PMID: 34332248 DOI: 10.1016/j.ecoenv.2021.112562] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 04/10/2021] [Revised: 07/22/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Seafood consumption provides essential elements to humans while also posing risks to human health. A total of 2610 individuals of five edible marine bivalve species (Ruditapes philippinarum, Paphia undulata, Meretrix meretrix, Sinonovacula constricta and Meretrix lyrata) were randomly sampled from six farmer markets in three cities (Beihai, Qinzhou and Fangchenggang) in the southernmost coastal region of China. The concentrations of heavy metals (Cu, Pb, Zn, Cd, Cr, Hg and As) were determined by inductively coupled plasma mass spectrometry (ICP-MS). The estimated daily intake (EDI), target hazard quotient (THQ), total hazard index (HI), and target cancer risk (TR) were calculated to evaluate potential human health risks from bivalve consumption. The mean concentrations of metals in the tissues of bivalves descended in the order Zn > Cu > As > Cd > Cr >Pb > Hg in descending order, and the concentrations varied substantially among the five bivalves. Heavy metal concentrations in edible tissues of most bivalve samples were below the safety limits set by national and international regulations, and there were significant correlations between certain metal concentrations. The EDI values for each metal in each bivalve were significantly lower than the corresponding PTDI (provisional tolerable daily intake) values. Health risk assessment showed that although there is no noncarcinogenic health risk for local residents exposed to individual or combined metals from these bivalves, there is a carcinogenic risk from Cd and Cr exposure. Thus, in the long term, monitoring and controlling bivalve consumption will be important. Although current accumulation levels of bivalves are safe, continued and excessive lifetime consumption over 70 years may pose a target cancer risk.
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Affiliation(s)
- Lu-Yan Qin
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China; Guangxi Academy of Oceanography, Nanning 530022, China
| | - Rong-Cang Zhang
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Marine Environmental Science, Guangxi Beibu Gulf Marine Research Center, Guangxi Academy of Science,Nanning 530007, China
| | - Yi-Dan Liang
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China
| | - Li-Chuan Wu
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China
| | - Ya-Jing Zhang
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China
| | - Zhen-Lin Mu
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China
| | - Ping Deng
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Ling-Ling Yang
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, China
| | - Zhou Zhou
- Department of Environmental Medicine, and Department of Emergency Medicine of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zheng-Ping Yu
- Department of Cell Biology, School of Life Sciences, and School of Medicine, Guangxi University, Nanning 530004, China.
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Deng LM, Wang Y, Yang JH, Li JL, Chen ZY, Bao WM, Chen KY, Yao XF, Zheng CM, Zheng JY, Yu ZP, Jin B, Chen G. Diffuse reduction of spleen density is a novel prognostic marker for intrahepatic cholangiocarcinoma after curative resection. World J Gastrointest Oncol 2021; 13:929-942. [PMID: 34457196 PMCID: PMC8371520 DOI: 10.4251/wjgo.v13.i8.929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/14/2021] [Accepted: 07/09/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Diffuse reduction of spleen density (DROSD) is related to cancer prognosis; however, its role in intrahepatic cholangiocarcinoma (ICC) remains unclear.
AIM To assess the predictive value of DROSD in the prognosis of ICC after curative resection.
METHODS In this multicenter retrospective cohort study, we enrolled patients with ICC who underwent curative hepatectomy between 2012 and 2019. Preoperative spleen density was measured using computed tomography. Overall survival (OS) and recurrence-free survival (RFS) rates were calculated and compared utilizing the Kaplan–Meier method. Univariable and multivariable Cox regression analyses were applied to identify independent factors for OS and RFS. A nomogram was created with independent risk factors to predict prognosis of patients with ICC.
RESULTS One hundred and sixty-seven ICC patients were enrolled. Based on the diagnostic cut-off values (spleen density ≤ 45.5 Hounsfield units), 55 (32.9%) patients had DROSD. Kaplan–Meier analysis indicated that patients with DROSD had worse OS and RFS than those without DROSD (P < 0.05). Cox regression analysis revealed that DROSD, carcinoembryonic antigen level, carbohydrate antigen 19-9 level, length of hospital stay, lymph node metastasis, and postoperative complications were independent predictors for OS (P < 0.05). The nomogram created with these factors was able to predict the prognosis of patients with ICC with good reliability (OS C-index = 0.733). The area under the curve for OS was 0.79.
CONCLUSION ICC patients with DROSD have worse OS and RFS. The nomogram is a simple and practical method to identify high-risk ICC patients with poor prognosis.
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Affiliation(s)
- Li-Ming Deng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Yi Wang
- Department of Epidemiology and Biostatistics, School of Public Health and Management, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Jin-Huan Yang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Jia-Liang Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Zi-Yan Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Wen-Ming Bao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Kai-Yu Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Xin-Fei Yao
- Division of Clinical Medicine, First School of Clinical Medicine,Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Chong-Ming Zheng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Jiu-Yi Zheng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Zheng-Ping Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - Bin Jin
- Department of Hepatobiliary Surgery, Qilu Hospital Shandong University, Jinan 250012, Shandong Province, China
| | - Gang Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
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Li YB, Fan XY, Ning L, Li SK, Yu ZP. microRNA-486-5p functions as a tumor suppressor in gastric carcinoma via directly targeting KDM5B. J BIOL REG HOMEOS AG 2021; 35:1. [PMID: 34327974 DOI: 10.23812/21-si1-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Y B Li
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - X Y Fan
- Divison of Medical Affairs of Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - L Ning
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - S K Li
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
| | - Z P Yu
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University, Qingdao, P.R. China
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9
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Chen G, Wang Y, Zhao X, Xie XZ, Zhao JG, Deng T, Chen ZY, Chen HB, Tong YF, Yang Z, Ding XW, Guo PY, Yu HT, Wu LJ, Zhang SN, Zhu QD, Li JJ, Shan YF, Yu FX, Yu ZP, Xia JL. A positive feedback loop between Periostin and TGFβ1 induces and maintains the stemness of hepatocellular carcinoma cells via AP-2α activation. J Exp Clin Cancer Res 2021; 40:218. [PMID: 34193219 PMCID: PMC8243733 DOI: 10.1186/s13046-021-02011-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 06/09/2021] [Indexed: 02/02/2023]
Abstract
Background Liver cancer stem cells (LCSCs) play key roles in the metastasis, recurrence, and chemotherapeutic resistance of hepatocellular carcinoma (HCC). Our previous research showed that the POSTN gene is closely related to the malignant progression and poor prognosis of HCC. This study aimed to elucidate the role of POSTN in generating LCSCs and maintaining their stemness as well as the underlying mechanisms. Methods Human HCC tissues and matched adjacent normal tissues were obtained from 110 patients. Immunohistochemistry, western blotting (WB), and RT-PCR were performed to detect the expression of POSTN and stemness factors. The roles of transforming growth factor (TGF)-β1 and AP-2α in the POSTN-induced stemness transformation of HCC cells were explored in vitro and in vivo using LCSCs obtained by CD133+ cell sorting. Results The high expression of POSTN was correlated with the expression of various stemness factors, particularly CD133, in our HCC patient cohort and in TCGA and ICGC datasets. Knockdown of POSTN expression decreased the abilities of HCC cell lines to form tumours in xenograft mouse models. Knockdown of POSTN expression also suppressed cell viability and clone formation, invasion, and sphere formation abilities in vitro. Knockdown of AP-2α attenuated the generation of CD133+ LCSCs and their malignant behaviours, indicating that AP-2α was a critical factor that mediated the POSTN-induced stemness transformation and maintenance of HCC cells. The role of AP-2α was verified by using a specific αvβ3 antagonist, cilengitide, in vitro and in vivo. Activation of POSTN could release TGFβ1 from the extracellular matrix and initiated POSTN/TGFβ1 positive feedback signalling. Furthermore, we found that the combined use of cilengitide and lenvatinib suppressed the growth of HCC cells with high POSTN expression more effectively than the use of lenvatinib alone in the patient-derived xenograft (PDX) mouse model. Conclusions The POSTN/TGFβ1 positive feedback pathway regulates the expression of stemness factors and the malignant progression of HCC cells by regulating the transcriptional activation of AP-2α. This pathway may serve as a new target for targeted gene therapy in HCC. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02011-8.
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Affiliation(s)
- Gang Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China. .,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China. .,Liver Cancer Institute, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China.
| | - Yi Wang
- Division of Preventive Medicine, School of Public Health and Management, Wenzhou Medical University, Wenzhou, 325005, China
| | - Xin Zhao
- Department of General Surgery, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Xiao-Zai Xie
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Jun-Gang Zhao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Tuo Deng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Zi-Yan Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Han-Bin Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Yi-Fan Tong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Zhen Yang
- Department of Infectious Diseases, Shandong Provincial Hospital affiliated to Shandong University, Jinan, 250021, China
| | - Xi-Wei Ding
- Department of Gastroenterology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, Jiangsu, China
| | - Peng-Yi Guo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Hai-Tao Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Li-Jun Wu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Si-Na Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Qian-Dong Zhu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Jun-Jian Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Yun-Feng Shan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Fu-Xiang Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Zheng-Ping Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325005, China.,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China
| | - Jing-Lin Xia
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China. .,Liver Cancer Institute, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325005, China. .,Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
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Li SK, Li CQ, Li YB, Ning L, Yu ZP, Wang PG, Zhou XB, Ren JA. [Clinical characteristics of recurrent appendicitis]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:786-790. [PMID: 32810951 DOI: 10.3760/cma.j.cn.441530-20200722-00435] [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 analyze clinical characteristics of recurrent appendicitis. Methods: A retrospective cohort study was carried out. Clinical data of patients who underwent appendectomy due to acute appendicitis confirmed by pathology in the Affiliated Hospital of Qingdao University from January 2011 to December 2015 were analyzed retrospectively. Exclusion criteria: (1) age of less than 18 years;(2) chronic appendicitis; (3) periappendiceal abscess; (4) appendiceal mucocele or mucinous neoplasms; (5) appendiceal neuroendocrine tumors or cancers; (6) appendicitis during pregnancy; (7) concurrent AIDS, hematological disease, autoimmune disease, inflammatory bowel disease or advanced cancer; (8) other simultaneous surgery. A total of 373 patients were enrolled the study. These patients were divided into the recurrent group (133 cases) and the first episode group (240 cases) according to the previous history of antibiotic therapy for acute appendicitis. The prevalence of recurrent appendicitis was calculated, and the clinical characteristics were analyzed, including gender, age, comorbidities and preoperative CT images. Results: Of 373 patients, 209 were male and 164 were female, with a median age of 42 (18 to 88) years. Median recurrent time of the recurrent group was 4 (1 to 60) months. Compared to the first episode group, the recurrent group had higher proportion of age <50 years [71.4% (95/133) vs. 57.5% (138/240), χ(2)=7.081, P=0.008], higher proportion of concurrent diabetes [13.5% (18/133) vs. 5.4% (13/240), χ(2)=7.399, P=0.007], shorter onset time [(41.7±13.6) hours vs. (59.4±56.2) hours, t=-3.286, P=0.001], lower proportion of abdominal tension and rebound pain [57.9% (77/133) vs. 66.7% (160/240), χ(2)=5.065, P=0.024], lower score of modified Alvarado score [(5.6±1.9) point vs. (6.1±1.9) point, t=-2.417, P=0.016], lower WBC count [(10.5±4.6) ×10(9)/L vs. (11.5±4.5)×10(9)/L, t=-1.190, P=0.047], higher percentage of lymphocyte [(19.4±14.7)% vs. (16.1±13.3)%, t=2.069, P=0.039]. In the recurrent group, ratio of length of removed appendix ≥7 cm was higher as compared with the first episode group [44.4% (59/133) vs. 32.9% (79/240), χ(2)=4.808, P=0.028], while the ratio of complicated appendicitis was significantly lower [8.3% (11/133) vs. 22.9% (55/240), χ(2)=10.823, P=0.001]. CT images were available in 129 patients, intraluminal appendicoliths was found in 19 of 50 patients (38%) in the recurrent group, while in 16 of 79 patients (20.3%) in the first episode group, and there was statistically significant difference between the two groups (χ(2)=4.880, P=0.027). Conclusions: Clinical characteristics of recurrent acute appendicitis include age less than 50 years, concurrent diabetes, short onset time, less abdominal tension or rebound pain, low modified Alvarado score, low WBC count, high percentage of lymphocyte, appendix length longer than 7 cm, non-complicated appendicitis and intraluminal appendicoliths.
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Affiliation(s)
- S K Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - C Q Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Y B Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - L Ning
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Z P Yu
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - P G Wang
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - X B Zhou
- Department of Epidemiology and Health Statistics, School of Public Health of Qingdao University, Qingdao, Shandong 266021, China
| | - J A Ren
- Department of General Surgery, Jinling Hospital, Nanjing University Medical School, Nanjing, Jiangsu 210002, China
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11
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Gao P, Zheng FZ, He MD, Li M, Deng P, Zhou Z, Yu ZP, Zhang L. An Experimental Study of Effects of Media Implication on Self-Report Symptoms Related With MP Use. Front Public Health 2020; 8:175. [PMID: 32478030 PMCID: PMC7237582 DOI: 10.3389/fpubh.2020.00175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 04/21/2020] [Indexed: 12/19/2022] Open
Abstract
Along with gradually increases in mobile phone (MP) use, the mass media has played a vital role in informing the public regarding the potential health hazards of MP use. These media warnings have prompted public worries about health. The aim of the present study is to investigate the effects of media warnings about the possible health hazards of MP use on self-reported symptoms. Participants were 703 undergraduate students who volunteered to take part in an experimental study between August 2013 and July 2015. After completing baseline questionnaires containing information on demographics, MP usage and possible confounding variables, the participants were randomly clustered assigned to a video treatment group (watching a 5-min video about the possible health hazards of MP use) or a control group. Then, they completed another set of questionnaires containing 6 self-reported physical symptoms and the Beck Depression Inventory (BDI). Chi-squared tests, Mann-Whitney U-tests and logistic regression models were applied in the data analysis. Participants in the video group reported significantly more frequent headache (P = 0.01), fatigue (P = 0.00), memory loss (P = 0.03), inattention (P = 0.00), and higher level of depression (P = 0.05) than those in the control group. Additionally, the prevalence of memory loss (β = 0.071, P = 0.03) and inattention (β = 0.110, P = 0.00) were significantly higher in participants with higher level of depression who watched the video. Media warnings about the possible health hazards of MP use promote people to report physical symptoms and psychological problems. Considering this tendency, more moderate and scientific media information is needed to alleviate public worries about MP use.
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Affiliation(s)
- Peng Gao
- Department of Occupational Health, Key Laboratory of Medical Protection for Electromagnetic Radiation, Ministry of Education, Third Military Medical University, Chongqing, China
| | - Fei-Zhou Zheng
- General Hospital of Central Theater Command, Wuhan, China
| | - Min-Di He
- Department of Occupational Health, Key Laboratory of Medical Protection for Electromagnetic Radiation, Ministry of Education, Third Military Medical University, Chongqing, China
| | - Min Li
- Department of Occupational Health, Key Laboratory of Medical Protection for Electromagnetic Radiation, Ministry of Education, Third Military Medical University, Chongqing, China
| | - Ping Deng
- Department of Occupational Health, Key Laboratory of Medical Protection for Electromagnetic Radiation, Ministry of Education, Third Military Medical University, Chongqing, China
| | - Zhou Zhou
- Department of Environmental Medicine, Zhejiang University School of Medicine, Hangzhou, China.,Department of Emergency Medicine, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zheng-Ping Yu
- Department of Occupational Health, Key Laboratory of Medical Protection for Electromagnetic Radiation, Ministry of Education, Third Military Medical University, Chongqing, China
| | - Lei Zhang
- Department of Occupational Health, Key Laboratory of Medical Protection for Electromagnetic Radiation, Ministry of Education, Third Military Medical University, Chongqing, China
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Qian JY, Deng P, Liang YD, Pang L, Wu LC, Yang LL, Zhou Z, Yu ZP. 8-Formylophiopogonanone B Antagonizes Paraquat-Induced Hepatotoxicity by Suppressing Oxidative Stress. Front Pharmacol 2019; 10:1283. [PMID: 31708790 PMCID: PMC6821879 DOI: 10.3389/fphar.2019.01283] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 10/07/2019] [Indexed: 01/15/2023] Open
Abstract
Flavonoids are some of the most important natural products with a variety of physiological activities. 8-Formylophiopogonanone B (8-FOB) is a naturally existing homoisoflavonoid in Ophiopogon japonicus. Paraquat (PQ) has been widely used as a potent herbicide and has high toxicity in humans. The goal of the present study was to investigate whether 8-FOB could protect against PQ-induced hepatotoxicity in vitro and in vivo. We first tested the protective effects of 8-FOB on PQ-induced cytotoxicity in L02 cells by determining cell viability, intracellular oxidative stress levels, mitochondrial function, and apoptosis in vitro. To verify the protective effects of 8-FOB, we pretreated mice with 8-FOB and assessed liver function, hepatic oxidative stress, and histopathological changes after PQ administration. Our results revealed that 8-FOB could antagonize PQ-induced hepatotoxicity in vitro and in vivo. The antagonistic effects could be attributed to suppressing oxidative stress, preserving mitochondrial function, and inhibiting apoptosis. The present study is the first to document that 8-FOB, a homoisoflavonoid compound, is an effective antioxidant for antagonizing PQ-induced hepatotoxicity.
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Affiliation(s)
- Jing-Yu Qian
- Department of Cell Biology, School of Life Sciences and School of Medicine, Guangxi University, Nanning, China
| | - Ping Deng
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Yi-Dan Liang
- Department of Cell Biology, School of Life Sciences and School of Medicine, Guangxi University, Nanning, China
| | - Li Pang
- Department of Cell Biology, School of Life Sciences and School of Medicine, Guangxi University, Nanning, China
| | - Li-Chuan Wu
- Department of Cell Biology, School of Life Sciences and School of Medicine, Guangxi University, Nanning, China
| | - Ling-Ling Yang
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Zhouv Zhou
- Department of Cell Biology, School of Life Sciences and School of Medicine, Guangxi University, Nanning, China
| | - Zheng-Ping Yu
- Department of Cell Biology, School of Life Sciences and School of Medicine, Guangxi University, Nanning, China
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13
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Pang L, Deng P, Liang YD, Qian JY, Wu LC, Yang LL, Yu ZP, Zhou Z. Lipoic acid antagonizes paraquat-induced vascular endothelial dysfunction by suppressing mitochondrial reactive oxidative stress. Toxicol Res (Camb) 2019; 8:918-927. [PMID: 32774841 DOI: 10.1039/c9tx00186g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/23/2019] [Indexed: 12/19/2022] Open
Abstract
Paraquat (PQ) is a widely used herbicide in the agricultural field. The lack of an effective antidote is the significant cause of high mortality in PQ poisoning. Here, we investigate the antagonistic effects of alpha lipoic acid (α-LA), a naturally existing antioxidant, on PQ toxicity in human microvascular endothelial cells (HMEC-1). All the doses of 250, 500 and 1000 μM α-LA significantly inhibited 1000 μM PQ-induced cytotoxicity in HMEC-1 cells. α-LA pretreatment remarkably diminished the damage to cell migration ability, recovered the declined levels of the vasodilator factor nitric oxide (NO), elevated the expression level of endothelial nitric oxide synthases (eNOS), and inhibited the upregulated expression of vasoconstrictor factor endothelin-1 (ET-1). Moreover, α-LA pretreatment inhibited reactive oxygen species (ROS) generation, suppressed the damage to the mitochondrial membrane potential (ΔΨ m) and mitigated the inhibition of adenosine triphosphate (ATP) production in HMEC-1 cells. These results suggested that α-LA could alleviate PQ-induced endothelial dysfunction by suppressing oxidative stress. In summary, our present study provides novel insight into the protective effects and pharmacological potential of α-LA against PQ toxicity in microvascular endothelial cells.
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Affiliation(s)
- Li Pang
- Department of Cell Biology , School of Life Sciences and School of Medicine , Guangxi University , Nanning 530004 , China .
| | - Ping Deng
- Department of Occupational Health , Third Military Medical University , Chongqing 400038 , China
| | - Yi-Dan Liang
- Department of Cell Biology , School of Life Sciences and School of Medicine , Guangxi University , Nanning 530004 , China .
| | - Jing-Yu Qian
- Department of Cell Biology , School of Life Sciences and School of Medicine , Guangxi University , Nanning 530004 , China .
| | - Li-Chuan Wu
- Department of Cell Biology , School of Life Sciences and School of Medicine , Guangxi University , Nanning 530004 , China .
| | - Ling-Ling Yang
- Department of Occupational Health , Third Military Medical University , Chongqing 400038 , China
| | - Zheng-Ping Yu
- Department of Cell Biology , School of Life Sciences and School of Medicine , Guangxi University , Nanning 530004 , China . .,Department of Occupational Health , Third Military Medical University , Chongqing 400038 , China
| | - Zhou Zhou
- Department of Cell Biology , School of Life Sciences and School of Medicine , Guangxi University , Nanning 530004 , China .
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Yu ZP, Ding JH, Sun AN, Chen BA, Ge Z, Wu DP. A New Conditioning Regimen Can Significantly Promote Post-Transplant Immune Reconstitution and Improve the Outcome of Umbilical Cord Blood Transplantation for Patients. Stem Cells Dev 2019; 28:1376-1383. [PMID: 31464164 DOI: 10.1089/scd.2019.0139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 01/25/2023] Open
Abstract
This study included data from 81 consecutively enrolled patients with hematological diseases who had been treated with unrelated umbilical cord blood transplantation (UCBT) between September 2014 and April 2019. All patients received intense conditioning regimens with combined fludarabine and high-dose cyclophosphamide (FC) before undergoing UCBT. Sixty-seven patients received a single UCBT, and 14 patients received a double UCBT. Fifty patients were pretreated with the fludarabine, busulfan, and cyclophosphamide (FBC) protocol, while 31 patients were treated with FC before transplantation. Graft-versus-host disease (GVHD) was prevented with cyclosporine A and mycophenolate mofetil administration. According to low-resolution, human leukocyte antigen (HLA) donor-recipient matching at six sites, 53 patients had 5-6 matches, while 28 patients had 4 matches. Seventy-eight patients (96.3%) achieved complete engraftment in this study. Thirty-six patients developed acute GVHD (aGVHD). The cumulative incidence of grade I-II aGVHD at day 100 posthematopoietic stem cell transplantation was 29.6%, and the cumulative incidence of grade III-IV aGVHD was 14.8%. At the end of the follow-up, 12 patients died due to treatment-related complications, and 4 died of disease relapse after transplantation. The transplant-related deaths were due to transplant-related infection (8 of 81), GVHD (2 of 81), and organ toxicity (2 of 81). The probability of overall survival (OS) was 80.2%. A higher dose of cyclophosphamide combined with fludarabine conditioning in UCBT was an effective curative method for treatment of hematologic disorders and could enhance the engraftment of umbilical cord blood stem cells, promote post-transplant immune reconstitution, and improve OS.
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Affiliation(s)
- Zheng-Ping Yu
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing, China
| | - Jia-Hua Ding
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing, China
| | - Ai-Ning Sun
- Hematology Division, Soochow University Affiliated No 1 People's Hospital, Suzhou, China
| | - Bao-An Chen
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing, China
| | - Zheng Ge
- Department of Hematology (Key Department of Jiangsu Medicine), Zhong Da Hospital, Southeast University, Nanjing, China
| | - De-Pei Wu
- Hematology Division, Soochow University Affiliated No 1 People's Hospital, Suzhou, China
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15
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Song HH, Yu ZP, Heg WD, Ding JH, Chen BA. [Efficacy Analysis of Unrelated Umbilical Cord Blood Transplantation for the Treatment of Wiskott-Aldrich Syndrome]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2019; 26:1816-1821. [PMID: 30501726 DOI: 10.7534/j.issn.1009-2137.2018.06.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To explore the clinical efficacy and safety of unrelated umbilical cord blood transplantation (UCBT) for the treatment of Wiskott-Aldrich syndrome(WAS). METHODS Five pediatric patients with WAS received single UCBT were retrospectively analyzed. The median age of these male patients was 268 days (range, 3 days -695 days). Among them, 2 patients were transplanted with a 6/6 matched cord blood graft,the other 3 patients received a 5/6 matched cord blood graft. Myeloablative conditioning regimen was applied, and all patients received a combination of cyclosporine and mycophenolate mofetil for the prophylaxis of graft versus host disease (GVHD). The recovery time of neutrophils and platelets as well as chimerism after transplantation were taken as the evidence of hematopoietic reconstruction. RESULTS All the five pediatric patients had hematopoietic recovery. A median time of neutrophil cells after transplantation was at 15.8 days (range,11 days -25 days), and platelet recovery was at a median of 20.4 days(range,12 days-30 days). Chimerism data were available for 5 patients at 30 days after UCBT, 4 out of the 5 patients had full donor chimerism and only one patient had mixed chimerism. There were 2 cases with pre-engraftment syndrome, 3 cases with acute GVHD gradeⅠ-Ⅲ, 4 cases with pulmonary infection and cytomegalovirus infection, but chronic GVHD was not observed in 5 cases. Four patients were alive with a median follow-up of 12.3 months (range, 5 months-17 months), and one patient had died at 22 days after UCBT. CONCLUSION Unrelated umbilical cord blood transplantation is a safe and effective treatment method for Wiskott-Aldrich syndrome.
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Affiliation(s)
- Hui-Hui Song
- Department of Hematology,Zhongda Hospital,Southeast University,Nanjing 210009,Jiangsu Province, China
| | - Zheng-Ping Yu
- Department of Hematology,Zhongda Hospital,Southeast University,Nanjing 210009,Jiangsu Province, China
| | - Wen-Duo Heg
- Department of Hematology,Zhongda Hospital,Southeast University,Nanjing 210009,Jiangsu Province, China
| | - Jia-Hua Ding
- Department of Hematology,Zhongda Hospital,Southeast University,Nanjing 210009,Jiangsu Province, China.E-mail:
| | - Bao-An Chen
- Department of Hematology,Zhongda Hospital,Southeast University,Nanjing 210009,Jiangsu Province, China
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Chang DL, Wei W, Yu ZP, Qin CK. miR-152-5p inhibits proliferation and induces apoptosis of liver cancer cells by up-regulating FOXO expression. Pharmazie 2018; 72:338-343. [PMID: 29442022 DOI: 10.1691/ph.2017.7406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Currently, a lot of microRNAs (miRNAs) have been confirmed to be closely related with liver cancer occurrence and development. This study was aimed to explore the role of miR-152-5p in liver cancer. HepG2 and MHCC97 cells were transfected with miR-152-5p mimic, inhibitor or corresponding scramble controls, respectively. The expression level of miR-152-5p in transfected cells was detected by qPCR. Cell viability, apoptosis, migration and invasion of miR-transfected cells were measured to determine the effect of miR-152-5p on the activity of hepatoma cells. The protein expressions of fork head transcription factor O (FOXO) and apoptosis related factors in miR-transfected cells were detected by western blot assay. In addition, western blot was used to detect the relationship of FOXO expression and mainly factors of the JNK signaling pathway after concurrent treatment with miR-152-5p mimic and JNK inhibitor. The results showed that the miR-152-5p was effectively overexpressed or repressed in both HepG2 and MHCC97 cells. Overexpression of miR-152-5p inhibited cell viability, promoted apoptosis, and reduced migration and invasion. In these cells, miR-152-5p overexpression activated the expression of apoptosis-related factors and upregulated the expression of FOXO by activating the phosphorylation of mainly factors in the JNK pathway. miR-152-5p might be a potential anti-tumor factor for liver cancer treatment.
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Sheng XS, Ding MX, Guo FM, Yu ZP, Hua X, Lin L. [The diagnostic value of copeptin in the cardiorenal syndrome rats and the association with heart and kidney impairment]. Zhonghua Nei Ke Za Zhi 2018; 57:518-521. [PMID: 29996272 DOI: 10.3760/cma.j.issn.0578-1426.2018.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To explore the diagnostic value of copeptin (CPP) in cardiorenal syndrome (CRS) in rats and the association between CPP and impairment of heart and kidney, 60 male SD rats were randomly divided into blank control group (CK group), kidney failure group (SNX group), heart failure group (MI group), and CRS group. Heart and kidney function and their histology changes in rats from each group were detected. The correlation between serum CPP and heart and kidney function indexes was performed with Pearson correlation analysis. The HE staining of heart and kidney showed that the tissue lesion was more severe in CRS group than in SNX group and MI group. There was a significant positive correlation between serum CPP and brain natriuretic peptide (BNP) (r=0.638, P<0.05). No correlation was observed between serum CPP and cardiac function index (left ventricular systolic pressure, left ventricular diastolic pressure, left ventricular end-diastolic pressure) or renal function index (serum creatinine, urine creatinine, blood urea nitrogen) (r=0.512, 0.189,-0.063, 0.207, 0.290, 0.595, respectively, all P>0.05). The CPP level is associated with the degree of heart and kidney damage in CRS rats.
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Affiliation(s)
| | | | | | | | | | - L Lin
- Department of Anesthesiology, Jinhua People's Hospital, Jinhua, Zhejiang 321000, China
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Pan JX, Chen G, Li JJ, Zhu QD, Li JJ, Chen ZJ, Yu ZP, Ye LY. Isocorydine suppresses doxorubicin-induced epithelial-mesenchymal transition via inhibition of ERK signaling pathways in hepatocellular carcinoma. Am J Cancer Res 2018; 8:154-164. [PMID: 29416928 PMCID: PMC5794729] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/04/2017] [Indexed: 06/08/2023] Open
Abstract
Doxorubicin (DOX) is a conventional and effective chemotherapeutic used in the treatment of hepatocellular carcinoma (HCC). However, doxorubicin administration may induce EMT, which results in the development of chemoresistance in HCC. Recent studies report that Isocorydine (ICD) selectively inhibits human cancer stem cells (CSCs), which have an important role in the development of chemoresistance. In this study, we observed that ICD co-administration enhanced DOX cytotoxicity in HCC cells, enabling the inhibition of DOX-induced epithelial-mesenchymal transition (EMT). Microarray data analysis revealed substantially decreased ERK signaling after ICD treatment. Additionally, we observed decreased IC50 for DOX upon ERK knockdown. Finally, we confirmed the enhanced efficacy of treatment with a combination of DOX and ICD in xenograft models. Collectively, the present study unveils the benefit of using DOX in combination with ICD for chemotherapy against HCC, revealing a novel potential anti-cancer strategy.
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Affiliation(s)
- Jie-Xue Pan
- The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Gang Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Jun-Jian Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Qian-Dong Zhu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Jing-Jie Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Zong-Jing Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Zheng-Ping Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
| | - Long-Yun Ye
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou, China
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Yu ZP, Ding JH, Sun AN, Ge Z, Chen BA, Wu DP. A Randomized Study Comparing Stem Cell Transplantation Versus Conventional Therapy for Low- and Intermediate-Risk Myelodysplastic Syndromes Patients. Stem Cells Dev 2017; 26:1132-1139. [PMID: 28494646 DOI: 10.1089/scd.2017.0031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Zheng-Ping Yu
- Hematology Division, The First Affiliated Hospital of Soochow University, Suzhou, China
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
| | - Jia-Hua Ding
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
| | - Ai-Ning Sun
- Hematology Division, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zheng Ge
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
| | - Bao-An Chen
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
| | - De-Pei Wu
- Hematology Division, The First Affiliated Hospital of Soochow University, Suzhou, China
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Ji XK, Zheng XW, Wu XL, Yu ZP, Shan YF, Zhang QY, Zeng QQ. Diagnosis and surgical treatment of retroperitoneal paraganglioma: A single-institution experience of 34 cases. Oncol Lett 2017; 14:2268-2280. [PMID: 28789448 PMCID: PMC5530091 DOI: 10.3892/ol.2017.6468] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 04/21/2017] [Indexed: 12/30/2022] Open
Abstract
The present study aimed at identifying the clinical, radiological and pathological characteristics of retroperitoneal paragangliomas, and determining the association between the tumor features and the prognosis of patients following surgery. A total of 34 patients with retroperitoneal paragangliomas, who underwent resection between November 1999 and December 2015, were included in the present retrospective study. The patients' demographics, clinical symptoms and signs, tumor functional status, surgical procedure, intraoperative results, tumor pathology, radiological results, and postoperative survival time were recorded and analyzed. Of the 34 patients, the most common type of presenting symptom was abdominal mass (46%), followed by hypertension (39%) and abdominal pain (32%). Functional tumors occurred in 20 patients (59%). Computed tomography (CT) and magnetic resonance imaging revealed soft-tissue masses, with marked enhancement in the arterial phase, indicative of retroperitoneal paragangliomas. The preoperative CT diagnostic accuracy rate between 2010 and 2015 was markedly improved, compared with that between 1999 and 2009. The tumors were primarily located close to the renal arteries and veins surrounding the abdominal aorta and inferior vena cava. With the exception of one malignant paraganglioma, the majority of paragangliomas were positive for chromogranin A, S-100 protein, vimentin and heat-shock protein 90, and exhibited decreased expression of Ki-67 antigen and insulin-like growth factor 2. All tumors were completely removed by surgery. Distant metastasis, but not tumor size, functional status and local invasion, was markedly associated with survival. The preoperative diagnostic accuracy rate of retroperitoneal paragangliomas may be improved by focusing on the predilection sites and CT characteristics. In addition, immunohistochemical markers were useful to determine tumor malignancy. Complete surgical resection was appropriate for all patients and postoperative survival time was identified to be associated with tumor metastasis.
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Affiliation(s)
- Xiao-Ke Ji
- Department of General Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiang-Wu Zheng
- Radiological Department, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiu-Lin Wu
- Department of Pathology, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zheng-Ping Yu
- Department of General Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yun-Feng Shan
- Department of General Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Qi-Yu Zhang
- Department of General Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Qi-Qiang Zeng
- Department of General Surgery, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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Sun C, Feng SB, Cao ZW, Bei JJ, Chen Q, Zhao WB, Xu XJ, Zhou Z, Yu ZP, Hu HY. Up-Regulated Expression of Matrix Metalloproteinases in Endothelial Cells Mediates Platelet Microvesicle-Induced Angiogenesis. Cell Physiol Biochem 2017; 41:2319-2332. [PMID: 28463834 DOI: 10.1159/000475651] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [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: 11/23/2016] [Accepted: 03/07/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Platelet microvesicles (PMVs) contribute to angiogenesis and vasculogenesis, but the mechanisms underlying these contributions have not been fully elucidated. In the present study, we investigated whether PMVs regulate the angiogenic properties of endothelial cells (ECs) via mechanisms extending beyond the transport of angiogenic regulators from platelets. METHODS In vitro Matrigel tube formation assay and in vivo Matrigel plug assay were used to evaluate the pro-angiogenic activity of PMVs. The effects of PMVs on the migration of human umbilical vein endothelial cells (HUVECs) were detected by transwell assay and wound-healing assay. Real-time PCR and western blot were conducted to examine mRNA and protein expression of pro-angiogenic factors in HUVECs. Matrix metalloproteinase (MMP) activity was assayed by gelatin zymography. Moreover, the effects of specific MMP inhibitors were tested. RESULTS PMVs promoted HUVEC capillary-like network formation in a dose-dependent manner. Meanwhile, PMVs dose-dependently facilitated HUVEC migration. Levels of MMP-2 and MMP-9 expression and activity were up-regulated in HUVECs stimulated with PMVs. Inhibition of MMPs decreased their pro-angiogenic and pro-migratory effects on HUVECs. Moreover, we confirmed the pro-angiogenic activity of PMVs in vivo in mice with subcutaneous implantation of Matrigel, and demonstrated that blockade of MMPs attenuated PMV-induced angiogenesis. CONCLUSION The findings of our study indicate that PMVs promote angiogenesis by up-regulating MMP expression in ECs via mechanism extending beyond the direct delivery of angiogenic factors.
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Affiliation(s)
- Cheng Sun
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Shi-Bin Feng
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zheng-Wang Cao
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Jun-Jie Bei
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Qiang Chen
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Wei-Bo Zhao
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xian-Jie Xu
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zhou Zhou
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Zheng-Ping Yu
- Department of Occupational Health, Third Military Medical University, Chongqing, China
| | - Hou-Yuan Hu
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
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Li Q, He MD, Mao L, Wang X, Jiang YL, Li M, Lu YH, Yu ZP, Zhou Z. Nicotinamide N-Methyltransferase Suppression Participates in Nickel-Induced Histone H3 Lysine9 Dimethylation in BEAS-2B Cells. Cell Physiol Biochem 2017; 41:2016-2026. [DOI: 10.1159/000475432] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/15/2017] [Indexed: 11/19/2022] Open
Abstract
Background: Nickel compounds are well-established human carcinogens with weak mutagenic activity. Histone methylation has been proposed to play an important role in nickel-induced carcinogenesis. Nicotinamide N-methyltransferase (NNMT) decreases histone methylation in several cancer cells by altering the cellular ratio of S-adenosylmethionine (SAM) to S-adenosylhomocysteine (SAH). However, the role of NNMT in nickel-induced histone methylation remains unclear. Methods: BEAS-2B cells were exposed to different concentrations of nickel chloride (NiCl2) for 72 h or 200 μM NiCl2 for different time periods. Histone H3 on lysine 9 (H3K9) mono-, di-, and trimethylation and NNMT protein levels were measured by western blot analysis. Expressions of NNMT mRNA and the H3k9me2-associated genes, mitogen-activated protein kinase 3 (MAP2K3) and dickkopf1 (DKK1), were determined by qPCR analysis. The cellular ratio of nicotinamide adenine dinucleotide (NAD+) to reduced NAD (NADH) and SAM/SAH ratio were determined. Results: Exposure of BEAS-2B cells to nickel increased H3K9 dimethylation (H3K9me2), suppressed the expressions of H3K9me2-associated genes (MAP2K3 and DKK1), and induced NNMT repression at both the protein and mRNA levels. Furthermore, over-expression of NNMT inhibited nickel-induced H3K9me2 and altered the cellular SAM/SAH ratio. Additionally, the NADH oxidant phenazine methosulfate (PMS) not only reversed the nickel-induced reduction in NAD+/NADH but also inhibited the increase in H3K9me2. Conclusions: These findings indicate that the repression of NNMT may underlie nickel-induced H3K9 dimethylation by altering the cellular SAM/SAH ratio.
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Zhou Z, Lu YH, Pi HF, Gao P, Li M, Zhang L, Pei LP, Mei X, Liu L, Zhao Q, Qin QZ, Chen Y, Jiang YM, Zhang ZH, Yu ZP. Cadmium Exposure is Associated with the Prevalence of Dyslipidemia. Cell Physiol Biochem 2016; 40:633-643. [PMID: 27898410 DOI: 10.1159/000452576] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Cadmium is a widespread environmental and occupational pollutant that accumulates in human body with a biological half-life exceeding 10 years. Cadmium exposure has been demonstrated to increase rates of cardiovascular diseases. Whether occupational cadmium exposure is associated with the increase in the prevalence of dyslipidemia and hence contributes to the risk of cardiovascular diseases is still equivocal. To test the hypothesis that exposure to cadmium is related to the prevalence of dyslipidemia, we examined the associations between blood cadmium concentration and the prevalence of dyslipidemia in workers occupationally exposed to cadmium in China. METHODS A cross-sectional survey on demographic data, blood cadmium level and lipid profile in cadmium exposed workers from seven cadmium smelting factories in central and southwestern China was conducted. We measured blood cadmium concentration and lipid components of 1489 cadmium exposed workers. The prevalence of dyslipidemia was compared across blood cadmium quartiles. Associations between the blood cadmium concentrations and the prevalence of dyslipidemia were assessed using confounder adjusted linear and logistic regressions. RESULTS The blood cadmium concentration was 3.61±0.84µg/L ( mean ±SD). The prevalence of dyslipidemia in this occupational population was 66.3%. Mean blood cadmium concentration of workers with dyslipedemia was significantly higher than that of workers without dyslipidemia (p <0.01). The prevalence of dyslipidemia increased dose-dependently with elevations in blood cadmium concentrations (p for trend <0.001). Elevated levels of blood cadmium were associated with BMI, education attainment, income, smoking status and duration of exposure (all p <0.01). Furthermore, the profile of blood lipid was obviously changed in this occupational population. The prevalence of high TC, high TG, Low HDL-C and high LDL-C rose with increases in blood cadmium levels dose-dependently (p for trend <0.001). The odds ratios (95% confidence interval) for dyslipidemia across the increasing blood cadmium quartiles were 1.21(1.16-1.55), 1.56(1.11-1.87), 1.79(1.26-2.25) respectively (referencing to 1.00; p for trend <0.001), after multivariate adjustment for BMI, education attainment, income, lifestyle factors and duration of exposure, the association between blood cadmium concentrations and the prevalence of dyslipidemia remained unchanged (all p for trend <0.001). CONCLUSION Elevated blood cadmium concentration is associated with prevalence of dyslipidemia. Cadmium exposure could alter lipid metabolism in humans. It is imperative to control cadmium exposure of occupational population in cadmium related industries and reduce adverse health effects.
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Affiliation(s)
- Zhou Zhou
- Department of Occupational Health, Third Military Medical University, Chongqing, China
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Chen ZY, Liu C, Lu YH, Yang LL, Li M, He MD, Chen CH, Zhang L, Yu ZP, Zhou Z. Cadmium Exposure Enhances Bisphenol A-Induced Genotoxicity through 8-Oxoguanine-DNA Glycosylase-1 OGG1 Inhibition in NIH3T3 Fibroblast Cells. Cell Physiol Biochem 2016; 39:961-74. [DOI: 10.1159/000447804] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2016] [Indexed: 11/19/2022] Open
Abstract
Background: Both cadmium (Cd) and bisphenol A (BPA) are commonly encountered in humans' daily activities, but their combined genotoxic effects remain unclear. Methods: In the present study, we exposed a mouse embryonic fibroblast cell line (NIH3T3) to Cd for 24 h, followed by a 24 h BPA exposure to evaluate toxicity. The cytotoxicity was evaluated by viability with CCK-8 assay and lactate dehydrogenase (LDH) release. Reactive oxygen species (ROS) production was measured by 2′,7′-dichlorofluorescein diacetate (DCFH-DA). And DNA damage was measured by 8-hydroxydeoxyguanosine (8-OHdG), phosphorylated H2AX (γH2AX) and the comet assay. The flow cytometry was used to detect cell cycle distribution, and apoptosis was determined by TUNEL assay and western blot against poly-ADP-ribose polymerase (PARP). Results: The results showed that Cd or BPA treatments alone (with the exception of BPA exposure at 50 μM) did not alter cell viability. However, pre-treatment with Cd aggravated the BPA-induced reduction in cell viability; increased BPA-induced LDH release, ROS production, DNA damage and G2 phase arrest; and elevated BPA-induced TUNEL-positive cells and the expression levels of cleaved PARP. Cd exposure concurrently decreased the expression of 8-oxoguanine-DNA glycosylase-1 (OGG1), whereas OGG1 over-expression abolished the enhancement of Cd on BPA-induced genotoxicity and cytotoxicity. Conclusion: These findings indicate that Cd exposure aggravates BPA-induced genotoxicity and cytotoxicity through OGG1 inhibition.
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Chen Q, Bei JJ, Liu C, Feng SB, Zhao WB, Zhou Z, Yu ZP, Du XJ, Hu HY. HMGB1 Induces Secretion of Matrix Vesicles by Macrophages to Enhance Ectopic Mineralization. PLoS One 2016; 11:e0156686. [PMID: 27243975 PMCID: PMC4887028 DOI: 10.1371/journal.pone.0156686] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 05/18/2016] [Indexed: 12/14/2022] Open
Abstract
Numerous clinical conditions have been linked to ectopic mineralization (EM). This process of pathological biomineralization is complex and not fully elucidated, but thought to be started within matrix vesicles (MVs). We hypothesized that high mobility group box 1 (HMGB1), a cytokine associated with biomineralizing process under physiological and pathological conditions, induces EM via promoting MVs secretion from macrophages. In this study, we found that HMGB1 significantly promoted secretion of MVs from macrophages and subsequently led to mineral deposition in elevated Ca/Pi medium in vitro. Transmission electron microscopy of calcifying MVs showed formation of hydroxyapatite crystals in the vesicle interior. Subcutaneous injection into mice with MVs derived from HMGB1-treated cells showed a greater potential to initiate regional mineralization. Mechanistic experiments revealed that HMGB1 activated neutral sphingomyelinase2 (nSMase2) that involved the receptor for advanced glycation end products (RAGE) and p38 MAPK (upstream of nSMase2). Inhibition of nSMase2 with GW4869 or p38 MAPK with SB-239063 prevented MVs secretion and mineral deposition. Collectively, HMGB1 induces MVs secretion from macrophages at least in part, via the RAGE/p38 MAPK/nSMase2 signaling pathway. Our findings thus reveal a novel mechanism by which HMGB1 induces ectopic mineralization.
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Affiliation(s)
- Qiang Chen
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
- Department of Out-patient, Naval University of Engineering, Wuhan, China
| | - Jun-Jie Bei
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Chuan Liu
- Department of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Shi-Bin Feng
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Wei-Bo Zhao
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Zhou Zhou
- Department of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Zheng-Ping Yu
- Department of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Xiao-Jun Du
- Experimental Cardiology, Baker IDI Heart and Diabetes Institute, and Central Clinical School, Monash University, Melbourne, Australia
| | - Hou-Yuan Hu
- Department of Cardiology, Southwest Hospital, Third Military Medical University, Chongqing, China
- * E-mail:
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Zeng QQ, Zheng XW, Wang QJ, Yu ZP, Zhang QY. Primary hepatic actinomycosis mimicking liver tumour. ANZ J Surg 2016; 88:E629-E630. [PMID: 27080813 DOI: 10.1111/ans.13586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 02/23/2016] [Accepted: 02/27/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Qi-Qiang Zeng
- Department of General Surgery, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiang-Wu Zheng
- Radiological Department, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qun-Ji Wang
- Department of Pathology, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Zheng-Ping Yu
- Department of General Surgery, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qi-Yu Zhang
- Department of General Surgery, First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China
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Bei JJ, Liu C, Peng S, Liu CH, Zhao WB, Qu XL, Chen Q, Zhou Z, Yu ZP, Peter K, Hu HY. Staphylococcal SSL5-induced platelet microparticles provoke proinflammatory responses via the CD40/TRAF6/NFκB signalling pathway in monocytes. Thromb Haemost 2015; 115:632-45. [PMID: 26632487 DOI: 10.1160/th15-04-0322] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 04/19/2015] [Accepted: 10/28/2015] [Indexed: 01/07/2023]
Abstract
Pathogens-induced platelet activation contributes to inflammation in cardiovascular diseases, but underlying mechanisms remain elusive. Staphylococcal superantigen-like protein 5 (SSL5) is a known activator of platelets. Here we examined whether SSL5 is implicated in Staphylococcus aureus (S. aureus)-induced inflammation and potential mechanisms involved. As expected, we show that SSL5 activates human platelets and induces generation of platelet microparticles (PMPs). Flow cytometry and scanning electron microscopy studies demonstrate that SSL5-induced PMPs (SSL5-PMPs) bind to monocytes, causing aggregate formation. In addition, SSL5-PMPs provoke monocyte expression and release of inflammatory mediators, including interleukin-1β (IL-1β), tumour necrosis factor-α (TNFα), monocyte chemoattractant protein-1 (MCP-1) and matrix metalloproteinase-9 (MMP-9) in a dose- and time-dependent manner. SSL5-PMPs also enhance MCP-1-induced monocyte migration. Blockade of CD40 and CD40 ligand (CD40L) interactions with neutralising antibodies significantly reduce monocyte release of inflammatory mediators and migration induced by SSL5-PMPs. SiRNA-mediated silencing of CD40 or TNF receptor (TNFR)-associated factor 6 (TRAF6) gene largely abrogates phosphorylation and nuclear translocation of NFκB (p65). In conclusion, SSL5 provokes the release of inflammatory mediators in monocytes, at least in part, via PMPs-mediated activation of the CD40/TRAF6/NFκB signalling pathway, though it normally inhibits leukocyte function. Our findings thus reveal a novel mechanism by which S. aureus induces inflammation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Hou-Yuan Hu
- Hou-Yuan Hu, Department of Cardiology, Southwest Hospital, Third Military Medical University, 29 Gaotanyan Street, Shapingba District, Chongqing 400038, China, Tel.: +86 23 68765167, Fax: +86 23 65317511, E-mail:
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Duan WX, He MD, Mao L, Qian FH, Li YM, Pi HF, Liu C, Chen CH, Lu YH, Cao ZW, Zhang L, Yu ZP, Zhou Z. NiO nanoparticles induce apoptosis through repressing SIRT1 in human bronchial epithelial cells. Toxicol Appl Pharmacol 2015; 286:80-91. [PMID: 25840356 DOI: 10.1016/j.taap.2015.03.024] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [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: 01/25/2015] [Revised: 03/20/2015] [Accepted: 03/21/2015] [Indexed: 02/06/2023]
Abstract
With application of nano-sized nickel-containing particles (Nano-Ni) expanding, the health concerns about their adverse effects on the pulmonary system are increasing. However, the mechanisms for the pulmonary toxicity of these materials remain unclear. In the present study, we focused on the impacts of NiO nanoparticles (NiONPs) on sirtuin1 (SIRT1), a NAD-dependent deacetylase, and investigated whether SIRT1 was involved in NiONPs-induced apoptosis. Although the NiONPs tended to agglomerate in fluid medium, they still entered into the human bronchial epithelial cells (BEAS-2B) and released Ni(2+) inside the cells. NiONPs at doses of 5, 10, and 20μg/cm(2) inhibited the cell viability. NiONPs' produced cytotoxicity was demonstrated through an apoptotic process, indicated by increased numbers of Annexin V positive cells and caspase-3 activation. The expression of SIRT1 was markedly down-regulated by the NiONPs, accompanied by the hyperacetylation of p53 (tumor protein 53) and overexpression of Bax (Bcl-2-associated X protein). However, overexpression of SIRT1 through resveratrol treatment or transfection clearly attenuated the NiONPs-induced apoptosis and activation of p53 and Bax. Our results suggest that the repression of SIRT1 may underlie the NiONPs-induced apoptosis via p53 hyperacetylation and subsequent Bax activation. Because SIRT1 participates in multiple biologic processes by deacetylation of dozens of substrates, this knowledge of the impact of NiONPs on SIRT1 may lead to an improved understanding of the toxic mechanisms of Nano-Ni and provide a molecular target to antagonize Nano-Ni toxicity.
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Affiliation(s)
- Wei-Xia Duan
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Min-Di He
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Lin Mao
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Feng-Hua Qian
- Department of Hematology, Southwest Hospital, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Yu-Ming Li
- Institute of Hepatobiliary Surgery, XinQiao Hospital, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Hui-Feng Pi
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Chuan Liu
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Chun-Hai Chen
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Yong-Hui Lu
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Zheng-Wang Cao
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Lei Zhang
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Zheng-Ping Yu
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Zhou Zhou
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China.
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Qin QZ, Zhao Q, Chen CH, Zhou Z, Yu ZP. [Rutin protects against trimethyltin-induced learning and memory impairment in BALB/c mice by antagonizing down-regulated synaptophysin expression]. Nan Fang Yi Ke Da Xue Xue Bao 2015; 35:113-116. [PMID: 25613621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To explore the protective effects of rutin against learning and memory impairment induced by trimethyltin (TMT) and investigate the possible mechanism. METHODS Forty 6- to 9-week-old male BALB/c mice were randomized equally into saline group (control), TMT group, TMT+rutin group, and rutin group. Mouse models of learning and memory impairment were establish by acute TMT (2.25 mg/kg) exposure. In TMT+rutin and rutin treatment groups, the mice received intraperitioneal injection of rutin (10 mg/kg) for 1 week before TMT exposure. Twenty-four hours after TMT exposure, Morris water maze test was employed to test the escape latency of the mice, and the synaptophysin expression in the hippocampus and cortex were analyzed by Western blotting. RESULTS Compared that in TMT group, the escape latency of the mice in water maze test was significantly shorter in the other 3 groups (P<0.05); the escape latency in TMT +rutin group was similar with that in the control and rutin groups (P>0.05). Western blotting showed significantly decreased synaptophysin expression in the hippocampus and cortex in TMT group (P<0.05); synaptophysin expression in TMT +rutin group increased significantly compared with that in TMT group (P<0.05) but showed no statistical significance from that in rutin and control groups (P>0.05). CONCLUSION Rutin pretreatment offers protective effect against TMT-induced learning and memory impairment in mice possibly by antagonizing decreased synaptophysin in the hippocampus and cortex.
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Affiliation(s)
- Qi-Zhong Qin
- Experiment Teaching Center, Chongqing Medical University, Chongqing 401331, China
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Yuan P, Yu ZP, Yue TH, Xiao YH, Chen BA. [Clinical efficacy of idarubicin combined with methotrexate for treatment of patients with central nervous system diffuse large B cell lymphoma]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2014; 22:1621-3. [PMID: 25543485 DOI: 10.7534/j.issn.1009-2137.2014.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was aimed to investigate the clinical efficacy of idarubicin combined with methotrexate for treatment of patients with central nervous system diffuse large B-cell lymphoma. A total of 88 patients with central nervous system diffuse large B-cell lymphoma was selected, out of them 54 patients received idarubicin combined with methotrexate and were selected as A group, other 34 patients received only methotrexate and were selected as B group (control group). Clinical efficacy and safety were compared after treatment. The results showed that in A group 84 patients achieved complete remission (CR), 5 patients archived partial remission (PR), the total remission rate of A group was 72.2%; in B group 10 patients achieved complete remission (CR), 4 patients archived partial remission (PR), the total remission rate of B group was 41.2%; the average survival time of A group was 33.172 months, and the average survival time of B group was 26.305 months, the former was significantly higher than latter (P < 0.05). It is concluded that idarubicin combined with methotrexate for the patients with central nervous system diffuse large B-cell lymphoma is effective and safe, and may be used in clinic.
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Affiliation(s)
- Peng Yuan
- Department of Interventional Radiology, Jianhu County People's Hospital, Jianhu 224700, Jiangsu Province, China
| | - Zheng-Ping Yu
- Department of Hematology, Zhongda Hospital Affiliated to Southeast University Nanjing, Nanjing 210000, Jiangsu Province, China
| | - Tian-Hua Yue
- Department of Interventional Radiology, Jianhu County People's Hospital, Jianhu 224700, Jiangsu Province, China
| | - Yan-Hua Xiao
- Department of Interventional Radiology, Jianhu County People's Hospital, Jianhu 224700, Jiangsu Province, China
| | - Bao-An Chen
- Department of Hematology, Zhongda Hospital Affiliated to Southeast University Nanjing, Nanjing 210000, Jiangsu Province, China. E-mail: ;
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He GH, Lin JJ, Cai WK, Xu WM, Yu ZP, Yin SJ, Zhao CH, Xu GL. Associations of polymorphisms in histidine decarboxylase, histamine N-methyltransferase and histamine receptor H3 genes with breast cancer. PLoS One 2014; 9:e97728. [PMID: 24835231 PMCID: PMC4023951 DOI: 10.1371/journal.pone.0097728] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 03/23/2014] [Accepted: 04/07/2014] [Indexed: 12/05/2022] Open
Abstract
We previously found that genetic polymorphisms in gene coding for histamine H4 receptors were related to the risk and malignant degree of breast cancer. The roles of polymorphisms in other histamine-related genes, such as histidine decarboxylase (HDC), histamine N-methyltransferase (HNMT) and histamine H3 receptor (HRH3), remain unexplored. The aim of this study is to analyze the clinical associations of polymorphisms in HDC, HNMT and HRH3 with breast cancer. Two hundred and one unrelated Chinese Han breast cancer patients and 205 ethnicity-matched health controls were recruited for case-control investigation. Genomic DNA from the participants was extracted and 5 single nucleotide polymorphisms (SNPs) in HDC, HNMT and HRH3 were genotyped. We found that polymorphisms of HNMT and HRH3 were irrelevant with breast cancer in the present study. However, the T allele of rs7164386 in HDC significantly decreased the risk of breast cancer (adjusted odds ratios [ORs], 0.387; 95% confidence intervals [CIs], 0.208–0.720; P = 0.003). Furthermore, for HDC haplotypes, the CG haplotype of rs7164386-rs7182203 was more frequent among breast cancer patients (adjusted OR, 1.828; 95% CI, 1.218–2.744; P = 0.004) while the TG haplotype was more frequent among health controls (adjusted OR, 0.351; 95% CI, 0.182–0.678; P = 0.002). These findings indicated that polymorphisms of HDC gene were significantly associated with breast cancer in Chinese Han population and may be novel diagnostic or therapeutic targets for breast cancer. Further studies with larger participants worldwide are still needed for conclusion validation.
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Affiliation(s)
- Gong-Hao He
- Department of Pharmacy, Kunming General Hospital of Chengdu Military Region, Kunming, Yunnan, China
| | - Jia-Ji Lin
- Department of neurology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wen-Ke Cai
- Department of Cardio-Thoracic Surgery, Kunming General Hospital of Chengdu Military Region, Kunming, Yunnan, China
| | - Wen-Mang Xu
- Department of Pathology, Kunming General Hospital of Chengdu Military Region, Kunming, Yunnan, China
| | - Zheng-Ping Yu
- Department of Labour Hygiene, College of Military Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Sun-Jun Yin
- Department of Pharmacy, Kunming General Hospital of Chengdu Military Region, Kunming, Yunnan, China
| | - Can-Hu Zhao
- Department of Pharmacy, Kunming General Hospital of Chengdu Military Region, Kunming, Yunnan, China
| | - Gui-Li Xu
- Department of Pharmacy, Kunming General Hospital of Chengdu Military Region, Kunming, Yunnan, China
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He GL, Liu Y, Li M, Chen CH, Gao P, Yu ZP, Yang XS. The amelioration of phagocytic ability in microglial cells by curcumin through the inhibition of EMF-induced pro-inflammatory responses. J Neuroinflammation 2014; 11:49. [PMID: 24645646 PMCID: PMC3994595 DOI: 10.1186/1742-2094-11-49] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 03/10/2014] [Indexed: 01/05/2023] Open
Abstract
Background Insufficient clearance by microglial cells, prevalent in several neurological conditions and diseases, is intricately intertwined with MFG-E8 expression and inflammatory responses. Electromagnetic field (EMF) exposure can elicit the pro-inflammatory activation and may also trigger an alteration of the clearance function in microglial cells. Curcumin has important roles in the anti-inflammatory and phagocytic process. Here, we evaluated the ability of curcumin to ameliorate the phagocytic ability of EMF-exposed microglial cells (N9 cells) and documented relative pathways. Methods N9 cells were pretreated with or without recombinant murine MFG-E8 (rmMFG-E8), curcumin and an antibody of toll-like receptor 4 (anti-TLR4), and subsequently treated with EMF or a sham exposure. Their phagocytic ability was evaluated using phosphatidylserine-containing fluorescent bioparticles. The pro-inflammatory activation of microglia was assessed via CD11b immunoreactivity and the production of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β) and nitric oxide (NO) via the enzyme-linked immunosorbent assay or the Griess test. We evaluated the ability of curcumin to ameliorate the phagocytic ability of EMF-exposed N9 cells, including checking the expression of MFG-E8, αvβ3 integrin, TLR4, nuclear factor-κB (NF-κB) and signal transducer and activator of transcription 3 (STAT3) using Western blotting. Results EMF exposure dramatically enhanced the expression of CD11b and depressed the phagocytic ability of N9 cells. rmMFG-E8 could clearly ameliorate the phagocytic ability of N9 cells after EMF exposure. We also found that EMF exposure significantly increased the secretion of pro-inflammatory cytokines (TNF-α, IL-6 and IL-1β) and the production of NO; however, these increases were efficiently chilled by the addition of curcumin to the culture medium. This reduction led to the amelioration of the phagocytic ability of EMF-exposed N9 cells. Western blot analysis revealed that curcumin and naloxone restored the expression of MFG-E8 but had no effect on TLR4 and cytosolic STAT3. Moreover, curcumin significantly reduced the expression of NF-κB p65 in nuclei and phospho-STAT3 (p-STAT3) in cytosols and nuclei. Conclusions This study indicates that curcumin ameliorates the depressed MFG-E8 expression and the attenuated phagocytic ability of EMF-exposed N9 cells, which is attributable to the inhibition of the pro-inflammatory response through the NF-κB and STAT3 pathways.
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Affiliation(s)
| | | | | | | | | | | | - Xue-Sen Yang
- Key Laboratory of Medical Protection for Electromagnetic Radiation Ministry of Education, Third Military Medical University, 30 Gaotanyan Street, Chongqing 400038, PR China.
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Sun YP, Zhang BL, Duan JW, Wu HH, Wang BQ, Yu ZP, Yang WJ, Shan YF, Zhou MT, Zhang QY. Effect of NK4 transduction in bone marrow-derived mesenchymal stem cells on biological characteristics of pancreatic cancer cells. Int J Mol Sci 2014; 15:3729-45. [PMID: 24595237 PMCID: PMC3975364 DOI: 10.3390/ijms15033729] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/20/2014] [Accepted: 02/10/2014] [Indexed: 12/25/2022] Open
Abstract
Pancreatic cancer usually has a poor prognosis, and no gene therapy has yet been developed that is effective to treat it. Since a unique characteristic of bone marrow-derived mesenchymal stem cells (MSCs) is that they migrate to tumor tissues, we wanted to determine whether MSCs could serve as a vehicle of gene therapy for targeting pancreatic cancer. First, we successfully extracted MSCs from SD rats. Next, MSCs were efficiently transduced with NK4, an antagonist of hepatocyte growth factor (HGF) which comprising the N-terminal and the subsequent four kringle domains of HGF, by an adenoviral vector. Then, we confirmed that rat MSCs preferentially migrate to pancreatic cancer cells. Last, MSCs expressing NK4 (NK4-MSCs) strongly inhibited proliferation and migration of the pancreatic cancer cell line SW1990 after co-culture. These results indicate that MSCs can serve as a vehicle of gene therapy for targeting pancreatic cancer.
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Affiliation(s)
- Yun-Peng Sun
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Ben-Long Zhang
- Department of General Surgery, Yiwu Chouzhou Hospital, Yiwu 322000, Zhejiang, China.
| | - Jian-Wen Duan
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Huan-Huan Wu
- Department of Infectious Disease, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Ben-Quan Wang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Zheng-Ping Yu
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Wen-Jun Yang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Yun-Feng Shan
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Meng-Tao Zhou
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
| | - Qi-Yu Zhang
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325015, Zhejiang, China.
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Huang YH, Chen ZK, Huang KT, Li P, He B, Guo X, Zhong JQ, Zhang QY, Shi HQ, Song QT, Yu ZP, Shan YF. Decreased expression of LKB1 correlates with poor prognosis in hepatocellular carcinoma patients undergoing hepatectomy. Asian Pac J Cancer Prev 2014; 14:1985-8. [PMID: 23679304 DOI: 10.7314/apjcp.2013.14.3.1985] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM To study any correlation of LKB1 expression with prognosis in hepatocellular carcinoma (HCC) cases. METHODS A total of 70 HCC patients and 20 primary intrahepatic stone patients in the first affiliated hospital of Wenzhou Medical College were enrolled in this study. LKB1 expression was detected by immunohistochemistry. Patients were followed-up and prognostic factors were evaluated. RESULT LKB1 expression was decreased in the HCC samples. Loss of LKB1 expression in HCC was significantly related to histologic grade (P=0.010), vascular invasion (P=0.025) and TMN stage (P=0.011). Patients showing negative LKB1 expression had a significantly shorter disease-free and overall survival than those with positive expression (P = 0.001, P=0.000, respectively). Multivariate Cox regression analysis indicated that LKB1 expression level was an independent factor of survival (P = 0.033). CONCLUSION HCC patients with decreased expression LKB1 have a poor prognosis. The loss of LKB1 expression is correlated with a lower survival rate.
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Affiliation(s)
- Yue-Han Huang
- Department of Hepatobiliary, The First Affiliated Hospital of Wenzhou Medical College, Wenzhou, China
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Zhang L, Zhao Q, Chen CH, Qin QZ, Zhou Z, Yu ZP. Synaptophysin and the dopaminergic system in hippocampus are involved in the protective effect of rutin against trimethyltin-induced learning and memory impairment. Nutr Neurosci 2013; 17:222-9. [PMID: 24001577 DOI: 10.1179/1476830513y.0000000085] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
OBJECTIVES This study aimed to investigate the protective effect of rutin against trimethyltin-induced spatial learning and memory impairment in mice. This study focused on the role of synaptophysin, growth-associated protein 43 and the action of the dopaminergic system in mechanisms associated with rutin protection and trimethyltin-induced spatial learning and memory impairment. METHODS Cognitive learning and memory was measured by Morris Water Maze. The expression of synaptophysin and growth-associated protein 43 in hippocampus was analyzed by western blot. The concentrations of dopamine, homovanillic acid, and dihyroxyphenylacetic acid in hippocampus were detected using reversed phase high-performance liquid chromatography with electrochemical detection. RESULTS Trimethyltin-induced spatial learning impairment showed a dose-dependent mode. Synaptophysin but not growth-associated protein 43 was decreased in the hippocampus after trimethyltin administration. The concentration of dopamine decreased, while homovanillic acid increased in the hippocampus after trimethyltin administration. Mice pretreated with 20 mg/kg of rutin for 7 consecutive days exhibited improved water maze performance. Moreover, rutin pretreatment reversed the decrease of synaptophysin expression and dopamine alteration. DISCUSSION These results suggest that rutin may protect against spatial memory impairment induced by trimethyltin. Synaptophysin and the dopaminergic system may be involved in trimethyltin-induced neuronal damage in hippocampus.
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Shan YF, Huang YH, Chen ZK, Huang KT, Zhou MT, Shi HQ, Song QT, Yu ZP, Deng AM, Zhang QY. miR-499A>G rs3746444 and miR-146aG>C expression and hepatocellular carcinoma risk in the Chinese population. Genet Mol Res 2013; 12:5365-71. [PMID: 24301908 DOI: 10.4238/2013.november.7.11] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We conducted a case-control study of a possible association of miR-499A>G rs3746444 and miR-146aG>C rs2910164 with risk of hepatocellular carcinoma. Samples from 172 hepatocellular carcinoma patients and 185 cancer-free controls were collected from October 2008 to December 2011. PCR-RFLP analysis was performed to determine the polymorphisms in each individual. The MAFs of miR-146aG>C and miR-499A>G in controls were similar to that known from the SNP database, and frequencies of genotypes in controls were in line with Hardy-Weinberg equilibrium. We found that miR-499 AG was significantly associated with decreased risk for hepatocellular carcinoma when compared with miR-499 AA genotype (adjusted odds ration = 0.74, 95% confidence interval = 0.24-0.96). However, subjects carrying miR-146a GG had a non-significant 0.62-fold decreased risk of hepatocellular carcinoma. We did not find a significant association of miR-146aG>C rs2910164 and miR-499A>G rs3746444 polymorphisms with hepatocellular carcinoma risk in the Chinese population. Further investigations are warranted to clarify the relationship between miRNA polymorphisms and susceptibility to hepatocellular carcinoma risk in various ethnic populations.
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Affiliation(s)
- Y F Shan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Yu ZP, Ding JH, Chen BA, Li YF, Ding BH, Qian J. An anti-human thymocyte globulin-based reduced-intensity conditioning regimen is associated with a higher quality of life and lower organ toxicity without affecting lymphocyte reconstitution. PLoS One 2013; 8:e73755. [PMID: 24040055 PMCID: PMC3767797 DOI: 10.1371/journal.pone.0073755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 07/22/2013] [Indexed: 11/27/2022] Open
Abstract
Reduced-intensity (RIT) conditioning regimens are gaining increased attention as a result of their advantages and efficacy. However, no data are available regarding whether these regimens improve patient quality of life (QoL). In our study, health-related QoL (HRQoL) was retrospectively assessed in 111 patients with hematological malignancies. Analysis of the Quality of Life Questionnaire indicated that 35 of the RIT patients were able to perform their normal work and returned to their baseline levels of function 2 to 3 months after transplantation. In the myeloablative (MA) group, only 24 patients were able to resume work, and these patients returned to their baseline levels of function 6 to 8 months after transplantation (68.6% vs. 40.0%, P = 0.004). Grade III–IV organ toxicity occurred in 20% of the RIT patients and in 52% of the MA patients (P = 0.001), and the cumulative incidences of grades III–IV acute graft-versus-host disease (GVHD) were 13.7% and 35.0% in RIT and MA patients, respectively (P = 0.015). In conclusion, the RIT conditioning regimens were well tolerated by the patients, with a low incidence of transplant-related mortality (TRM) and serious acute GVHD. In addition, these regimens minimized procedure-related toxicity, improved QoL and did not influence lymphocyte reconstitution; however, OS was similar for both regimens because the relapse rate was relatively increased in the RIT groups.
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Affiliation(s)
- Zheng-Ping Yu
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
| | - Jia-Hua Ding
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
- * E-mail:
| | - Bao-An Chen
- Department of Hematology (Key Department of Jiangsu Medicine), ZhongDa Hospital, Southeast University, Nanjing, China
| | - Yu-Feng Li
- Hematology Division, Huaian Hospital, Nanjing Medical University, Huaian, China
| | - Bang-He Ding
- Hematology Division, Huaian Hospital, Nanjing Medical University, Huaian, China
| | - Jun Qian
- Hematology Division, Zhenjiang Hospital, Zhenjiang Medical University, Zhenjiang, China
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Liu C, Gao P, Xu SC, Wang Y, Chen CH, He MD, Yu ZP, Zhang L, Zhou Z. Mobile phone radiation induces mode-dependent DNA damage in a mouse spermatocyte-derived cell line: A protective role of melatonin. Int J Radiat Biol 2013; 89:993-1001. [DOI: 10.3109/09553002.2013.811309] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gong QF, Yang XS, Tu L, Zhang GB, Yu ZP. [The Chinese medicine nutrient diet intervention prevent against the neurologic damage induce by EMF irradiation in rat hippocampus]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2013; 29:346-350. [PMID: 24175560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To observe the neurologic damage in rat hippocampus after electromagnetic field (EMF) acute or chronic irradiation and research the protective effects of Chinese medicine diet (CMD) which comprised ferulic acid, ginsenoside, astragalus polysaccharide and rhodiola sachalinensis. METHODS Eighty rats were divided into ten groups (n = 8): normal diet with shame irradiation group (NS), normal diet with chronic irradiation group (NCI), three groups of normal diet with acute irradiation after 3 h, 24 h, 72 h (NAI), Chinese medicine diet with shame irradiation group (CS), Chinese medicine diet with chronic irradiation group (CCI), three groups of Chinese medicine diet with acute irradiation after 3 h, 24 h, 72 h (CAI). The chronic EMF irradiation were performed by electromagnetic wave at 15 W/cm2 for 20 min everyday for 8 weeks continuously. The acute EMF irradiation were performed by electromagnetic wave at 65 W/cm2 for 20 min after feeding with CMD for 8 weeks. The learning and memory were evaluated by Morris water maze before/after electromagnetic wave irradiation. The apoptotic cells in hippocampus was detected by Tunel staining. The peroxidation damage of EMF and the protective effect of CMD intervention were assayed by measuring superoxide dismutase (SOD), malondialdehyde (MDA), glutathione peroxidase (GSH-Px) and reactive oxygen species (ROS). RESULTS The acute and chronic EMF irradiation disturbed the ability of learning and memory significantly (P < 0.05), CMD intervention markedly antagonized this effect. The apoptotic cells in hippocampus increased evidently after EMF irradiation (P < 0.05), but CMD intervention reduced the apoptotic cells. The acute and chronic EMF irradiation induced the oxidative stress by down-regulating SOD activity, GSH-Px activity, ROS inhibiting and up-regulating the content of MDA obviously (P < 0.05), and CMD intervention reduced peroxidation damage significantly (P < 0.05). CONCLUSION The acute and chronic EMF irradiation could initiate neurologic damage in hippocampus. CMD intervention has protective effect on the impaired learning and memory, the neuron apoptosis, the peroxidation damage induced by EMF irradiation. CMD intervention plays a significant protective role in antagonizing neurologic damage in the later stage of acute irradiation and chronic irradiation.
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Affiliation(s)
- Qian-Fen Gong
- Nutrition Department, Southwest Hospital, Military Medical Chongqing 400038, China.
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Wu HJ, Liu C, Duan WX, Xu SC, He MD, Chen CH, Wang Y, Zhou Z, Yu ZP, Zhang L, Chen Y. Melatonin ameliorates bisphenol A-induced DNA damage in the germ cells of adult male rats. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2013; 752:57-67. [DOI: 10.1016/j.mrgentox.2013.01.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2012] [Revised: 01/11/2013] [Accepted: 01/31/2013] [Indexed: 10/27/2022]
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41
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Yang XS, He GL, Hao YT, Xiao Y, Chen CH, Zhang GB, Yu ZP. Exposure to 2.45GHz electromagnetic fields elicits an HSP-related stress response in rat hippocampus. Brain Res Bull 2012; 88:371-8. [DOI: 10.1016/j.brainresbull.2012.04.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2012] [Revised: 03/08/2012] [Accepted: 04/02/2012] [Indexed: 11/28/2022]
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Li J, Zhang L, Zhou L, Yu ZP, Qi F, Liu B, Zi SX, Li L, Li Y, Wang SB, Cui ZJ, Pan XH. Beneficial effects of non-matched allogeneic cord blood mononuclear cells upon patients with idiopathic osteoporosis. J Transl Med 2012; 10:102. [PMID: 22613677 PMCID: PMC3408346 DOI: 10.1186/1479-5876-10-102] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Accepted: 05/21/2012] [Indexed: 01/22/2023] Open
Abstract
Background Immunological arguments and historical examples have shown that treatment with cord blood for non-hematopoietic activities, such as growth factor production and stimulation of angiogenesis, may not require matching or immune suppression. Methods To study the benefit of blood mononuclear cell therapy, 8 patients with idiopathic osteoporosis were given intermittent treatments with non-matched allogeneic cord blood mononuclear cells for 3 months. Morning fasting samples were collected for measuring urine N telopeptide of type-1 collagen, serum bone-specific alkaline phosphatase, and insulin-like growth factor 1 during one-year study. Results Clinical response was striking. Serum insulin-like growth factor 1 significantly increased in all patients at 3 months compared with baseline values, from 264.1 ± 107.0 to 384.4 ± 63.1 ng/mL (P = 0.002), with a tendency to return to baseline values at 12 months (312.9 ± 75.5 ng/mL, P = 0.083). In contrast, differences in serum bone-specific alkaline phosphatase and urine N telopeptide of type-1 collagen were not significant at 3 (P = 0.765, P = 0.057) or 12 months (P = 0.889, P = 0.122). A beneficial effect on bone density was observed in all patients at the lumbar spine. The mean bone mineral density calculated during therapy (0.6811 ± 0.1442 g/cm2) tended higher than baseline values (0.6239 ± 0.1362 g/cm2, P < 0), and percentage change (median) varied from 8.85% at 3 months to 7.85% at one year. All patients are now well after one year. Conclusions The findings indicate that for these patients with idiopathic osteoporosis, treatment with cord blood mononuclear cells led to a significant increase in insulin-like growth factor 1 levels, which favors the increase in bone mineral density.
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Affiliation(s)
- Jun Li
- Stem cell, Tissue and Organ Engineering Research Center, Kunming General, Hospital of Chinese People's Liberation Army, Kunming 650032, China
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Xu SC, Chen YB, Lin H, Pi HF, Zhang NX, Zhao CC, Shuai L, Zhong M, Yu ZP, Zhou Z, Bie P. Damage to mtDNA in liver injury of patients with extrahepatic cholestasis: the protective effects of mitochondrial transcription factor A. Free Radic Biol Med 2012; 52:1543-51. [PMID: 22306509 DOI: 10.1016/j.freeradbiomed.2012.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 01/05/2012] [Accepted: 01/13/2012] [Indexed: 12/24/2022]
Abstract
Oxidative stress and mitochondrial dysfunction are involved in the pathogenesis of chronic liver cholestasis. Mitochondrial DNA (mtDNA) is highly susceptible to oxidative stress and mtDNA damage leads to mitochondrial dysfunction. This study aimed to investigate the mtDNA alterations that occurred during liver injury in patients with extrahepatic cholestasis. Along with an increase in malondialdehyde (MDA) levels and a decrease in ATP levels, extrahepatic cholestatic patients presented a significant increase in mitochondrial 8-hydroxydeoxyguanosine (8-OHdG) levels and decreases in mtDNA copy number, mtDNA transcript levels, and mtDNA nucleoid structure. In L02 cells, glycochenodeoxycholic acid (GCDCA) induced similar damage to the mtDNA and mitochondria. In line with the mtDNA alterations, the mRNA and protein levels of mitochondrial transcription factor A (TFAM) were significantly decreased both in cholestatic patients and in GCDCA-treated L02 cells. Moreover, overexpression of TFAM could efficiently attenuate the mtDNA damage induced by GCDCA in L02 cells. However, without its C-tail, ΔC-TFAM appeared less effective against the hepatotoxicity of GCDCA than the wild-type TFAM. Overall, our study demonstrates that mtDNA damage is involved in liver damage in extrahepatic cholestatic patients. The mtDNA damage is attributable to the loss of TFAM. TFAM has mtDNA-protective effects against the hepatotoxicity of bile acid during cholestasis.
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Affiliation(s)
- Shang-Cheng Xu
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
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Yu ZP, Ding JH, Wu F, Liu J, Wang J, Cheng J, Zhao G. Quality of Life of Patients after Allogeneic Hematopoietic Stem Cell Transplantation with Antihuman Thymocyte Globulin. Biol Blood Marrow Transplant 2012; 18:593-9. [DOI: 10.1016/j.bbmt.2011.08.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Accepted: 08/11/2011] [Indexed: 10/17/2022]
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Xu SC, He MD, Lu YH, Li L, Zhong M, Zhang YW, Wang Y, Yu ZP, Zhou Z. Nickel exposure induces oxidative damage to mitochondrial DNA in Neuro2a cells: the neuroprotective roles of melatonin. J Pineal Res 2011; 51:426-33. [PMID: 21797922 DOI: 10.1111/j.1600-079x.2011.00906.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent studies suggest that oxidative stress and mitochondrial dysfunction play important roles in the neurotoxicity of nickel. Because mitochondrial DNA (mtDNA) is highly vulnerable to oxidative stress and melatonin can efficiently protect mtDNA against oxidative damage in various pathological conditions, the aims of this study were to determine whether mtDNA oxidative damage was involved in the neurotoxicity of nickel and to assay the neuroprotective effects of melatonin in mtDNA. In this study, we exposed mouse neuroblastoma cell lines (Neuro2a) to different concentrations of nickel chloride (NiCl(2), 0.125, 0.25, and 0.5 mm) for 24 hr. We found that nickel significantly increased reactive oxygen species (ROS) production and mitochondrial superoxide levels. In addition, nickel exposure increased mitochondrial 8-hydroxyguanine (8-OHdG) content and reduced mtDNA content and mtDNA transcript levels. Consistent with this finding, nickel was found to destroy mtDNA nucleoid structure and decrease protein levels of Tfam, a key protein component for nucleoid organization. However, all the oxidative damage to mtDNA induced by nickel was efficiently attenuated by melatonin pretreatment. Our results suggest that oxidative damage to mtDNA may account for the neurotoxicity of nickel. Melatonin has great pharmacological potential in protecting mtDNA against the adverse effects of nickel in the nervous system.
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Affiliation(s)
- Shang-Cheng Xu
- Department of Occupational Health, Third Military Medical University, Chongqing, China
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He MD, Xu SC, Lu YH, Li L, Zhong M, Zhang YW, Wang Y, Li M, Yang J, Zhang GB, Yu ZP, Zhou Z. L-carnitine protects against nickel-induced neurotoxicity by maintaining mitochondrial function in Neuro-2a cells. Toxicol Appl Pharmacol 2011; 253:38-44. [PMID: 21419151 DOI: 10.1016/j.taap.2011.03.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 03/05/2011] [Accepted: 03/08/2011] [Indexed: 01/08/2023]
Abstract
Mitochondrial dysfunction is thought to be a part of the mechanism underlying nickel-induced neurotoxicity. L-carnitine (LC), a quaternary ammonium compound biosynthesized from the amino acids lysine and methionine in all mammalian species, manifests its neuroprotective effects by improving mitochondrial energetics and function. The purpose of this study was to investigate whether LC could efficiently protect against nickel-induced neurotoxicity. Here, we exposed a mouse neuroblastoma cell line (Neuro-2a) to different concentrations of nickel chloride (NiCl₂) (0.25, 0.5, 1, and 2 mM) for 24 h, or to 0.5 mM and 1 mM NiCl₂ for various periods (0, 3, 6, 12, or 24 h). We found that nickel significantly increased the cell viability loss and lactate dehydrogenase (LDH) release in Neuro-2a cells. In addition, nickel exposure significantly elevated reactive oxygen species (ROS) and malondialdehyde (MDA) levels, disrupted the mitochondrial membrane potential (ΔΨ(m)), reduced adenosine-5'-triphosphate (ATP) concentrations and decreased mitochondrial DNA (mtDNA) copy numbers and mtRNA transcript levels. However, all of the cytotoxicities and mitochondrial dysfunctions that were triggered by nickel were efficiently attenuated by pretreatment with LC. These protective effects of LC may be attributable to its role in maintaining mitochondrial function in nickel-treated cells. Our results suggest that LC may have great pharmacological potential in protecting against the adverse effects of nickel in the nervous system.
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Affiliation(s)
- Min-Di He
- Department of Occupational Health, Third Military Medical University, Chongqing 400038, People's Republic of China
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Qu MY, Deng ZH, Zhou Z, Wei AM, Chen CH, Yu ZP, Wang DG. [Effect of microwave irradiation on expression of heat shock proteins family in primary cultured rat hippocampal neurons]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2010; 28:909-913. [PMID: 21241601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the effects of microwave irradiation on the expression and regulation of heat shock proteins (HSPs) in primary cultured rat hippocampal neurons. METHODS Neurons were exposed to 90 mW/cm(2) microwave irradiation for 10 minutes. Western blot was used to determine the expression of HSP27, HSP70, HSP90 and heat shock factor 1 (HSF1) at 0, 3, 6, 12 and 24 hour respectively. Real-time RT-PCR was used to determine the mRNA expression of HSF1. DNA-binding activity of HSF1 was measured by electrophoretic mobility shift assay (EMSA). RESULTS The protein expression of HSP27 was significantly increased by 22%, 36%, 18% at 3, 6, 12 h, respectively (P < 0.05). The protein expression of HSP70 was significantly increased by 23%, 32%, 26% at 3, 6, 12 h, respectively (P < 0.05, P < 0.01). The protein expression of HSP90 was significantly increased by 27%, 33% at 6, 12 h, respectively (P < 0.05, P < 0.01). The DNA-binding activity of HSF1 was stimulated, however, no significant change of the expression of HSF1 was observed on both the mRNA and protein levels. CONCLUSION The transcriptional activity of HSF1 is activated by microwave irradiation, which promotes the expression of HSPs. Heat shock response which contributes to establish a cytoprotective state is induced by microwave irradiation in primary cultured rat hippocampal neurons.
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Affiliation(s)
- Ming-Yue Qu
- Department of Military Occupational Hygiene, Third Military Medical University, Chongqing 400038, China
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Yu ZP, Ding JH, Chen BA, Liu BC, Liu H, Li YF, Ding BH, Qian J. Risk factors for acute kidney injury in patients undergoing allogeneic hematopoietic stem cell transplantation. Chin J Cancer 2010; 29:946-51. [DOI: 10.5732/cjc.010.10293] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Xu SC, He MD, Zhong M, Zhang YW, Wang Y, Yang L, Yang J, Yu ZP, Zhou Z. Melatonin protects against Nickel-induced neurotoxicity in vitro by reducing oxidative stress and maintaining mitochondrial function. J Pineal Res 2010; 49:86-94. [PMID: 20536687 DOI: 10.1111/j.1600-079x.2010.00770.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Nickel is a potential neurotoxic pollutant. Oxidative stress is supposed to be involved in the mechanism underlying nickel-induced neurotoxicity. Melatonin has efficient protective effects against various oxidative damages in nervous system. The purpose of this study was to investigate whether melatonin could efficiently protect against neurotoxicity induced by nickel. Here, we exposed primary cultured cortical neurons and mouse neuroblastoma cell lines (neuro2a) to different concentrations of nickel chloride (NiCl(2)) (0.125, 0.25, 0.5, and 1 mm) for 12 hr or 0.5 mm NiCl(2) for various periods (0, 3, 6, 12, and 24 hr). We found that nickel significantly increased reactive oxygen species production and caused the loss of cell viability both in cortical neurons and neuro2a cells. In addition, nickel exposure obviously inhibited the mitochondrial function, disrupted the mitochondrial membrane potential (DeltaPsim), reduced ATP production, and decreased mitochondrial DNA (mtDNA) content. However, each of these oxidative damages was efficiently attenuated by melatonin pretreatment. These protective effects of melatonin may be attributable to its roles in reducing oxidative stress and improving mitochondrial function in nickel-treated nerve cells. Our results suggested that melatonin may have great pharmacological potential in protecting against the adverse effects of nickel in the nervous system.
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Affiliation(s)
- Shang-Cheng Xu
- Department of Occupational Health, Third Military Medical University, Chongqing, China
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Xia JX, Fan SY, Yan J, Chen F, Li Y, Yu ZP, Hu ZA. Orexin A-induced extracellular calcium influx in prefrontal cortex neurons involves L-type calcium channels. J Physiol Biochem 2009; 65:125-36. [PMID: 19886391 DOI: 10.1007/bf03179063] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Orexins, novel excitatory neuropeptides from the lateral hypothalamus, have been strongly implicated in the regulation of sleep and wakefulness. In this study, we explored the effects and mechanisms of orexin A on intracellular free Ca2+ concentration ([Ca2+]i) of freshly dissociated neurons from layers V and VI in prefrontal cortex (PFC). Changes in [Ca2+]i were measured with fluo-4/AM using confocal laser scanning microscopy. The results revealed that application of orexin A (0.1-1 microM) induced increase of [Ca2+]i in a dose-dependent manner. This elevation of [Ca2+]i was completely blocked by pretreatment with selective orexin receptor 1 antagonist SB 334867. While depletion of intracellular Ca2+ stores by the endoplasmic reticulum inhibitor thapsigargin (2 pM), [Ca2+]i in PFC neurons showed no increase in response to orexin A. Under extracellular Ca2+-free condition, orexin A failed to induce any changes of Ca2+ fluorescence intensity in these acutely dissociated cells. Our data further demonstrated that the orexin A-induced increase of [Ca2+]i was completely abolished by the inhibition of intracellular protein kinase C or phospholipase C activities using specific inhibitors, BIS II (1 microM) and D609 (10 microM), respectively. Selective blockade of L-type Ca2+ channels by nifedipine (5 microM) significantly suppressed the elevation of [Ca2+]i induced by orexin A. Therefore, these findings suggest that exposure to orexin A could induce increase of [Ca2+]i in neurons from deep layers of PFC, which depends on extracellular Ca2+ influx via L-type Ca2+ channels through activation of intracellular PLC-PKC signaling pathway by binding orexin receptor 1.
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Affiliation(s)
- J X Xia
- Department of Physiology, Third Military Medical University, 30 Gao tanyan Street, Chongqing 400038, China
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