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Yang X, Li Q, Zeng T. Peripheral CD4 + T cells correlate with response and survival in patients with advanced non-small cell lung cancer receiving chemo-immunotherapy. Front Immunol 2024; 15:1364507. [PMID: 38650951 PMCID: PMC11033411 DOI: 10.3389/fimmu.2024.1364507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 03/26/2024] [Indexed: 04/25/2024] Open
Abstract
Background The aim of the present study was to explore the potential of peripheral immune cells in predicting the response and prognosis of patients with advanced non-small cell lung cancer (NSCLC) receiving anti-PD-1 immunotherapy and platinum-based chemotherapy. Participants and Methods We utilized flow cytometry to examine the levels and dynamics of blood immune cells in 79 advanced NSCLC patients treated with the chemoimmunotherapy between December 2019 and January 2022. The pre- and post-treatment blood samples were collected within 3 days prior to the initiation of the first and third cycle of combination treatment, respectively. Progression-free survival (PFS) and overall survival (OS) analyses were conducted using Kaplan-Meier method and Cox regression models. Results The pre-treatment CD4+/Total T cells ratio was significantly higher in responders than non-responders (P < 0.05). The levels of pre-treatment total lymphocytes (P = 0.012), total B lymphocytes (P = 0.025), and NK cells (P = 0.022), and post-treatment NK cells (P = 0.011) and NKT cells (P = 0.035) were significantly associated with OS. Post-treatment CD8+/Total T cells ratio was positively correlated with OS (P = 0.038). In multivariate analysis, post-treatment NK cells and post-treatment CD4+CD8+/Total T cells ratio were negatively associated with OS (hazard ratio [HR] = 10.30, P = 0.038) and PFS (HR = 1.95, P = 0.022), respectively. Notably, significantly positive correlations were observed between CD4+/Total T cells ratio and prognosis both before and after treatment (P < 0.05). Conclusion To summarize, our finding reveals that high CD4+/total T cells ratio was associated with favorable response and prognosis, highlighting its potential as a predictive biomarker to guide the selection of likely responders to platinum and anti-PD-1 combination therapy.
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Affiliation(s)
- Xin Yang
- Department of Cardio-Thoracic Surgery, Deyang People’s Hospital, Deyang, Sichuan, China
| | - Qiao Li
- Department of Pathology, Deyang People’s Hospital, Deyang, Sichuan, China
| | - Tianyang Zeng
- Department of Thoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Li G, Guo J, Mou Y, Luo Q, Wang X, Xue W, Hou T, Zeng T, Yang Y. Keratin gene signature expression drives epithelial-mesenchymal transition through enhanced TGF-β signaling pathway activation and correlates with adverse prognosis in lung adenocarcinoma. Heliyon 2024; 10:e24549. [PMID: 38322947 PMCID: PMC10844058 DOI: 10.1016/j.heliyon.2024.e24549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 12/13/2023] [Accepted: 01/10/2024] [Indexed: 02/08/2024] Open
Abstract
Background Lung adenocarcinoma (LUAD) stands as the foremost histological subtype of non-small-cell lung cancer, accounting for approximately 40% of all lung cancer diagnoses. However, there remains a critical unmet need to enhance the prediction of clinical outcomes and therapy responses in LUAD patients. Keratins (KRTs), serving as the structural components of the intermediate filament cytoskeleton in epithelial cells, play a crucial role in the advancement of tumor progression. This study investigated the prognostic significance of the KRT family gene and developed a KRT gene signature (KGS) for prognostic assessment and treatment guidance in LUAD. Methods Transcriptome profiles and associated clinical details of LUAD patients were meticulously gathered from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases. The KGS score was developed based on the expression of five prognostic KRT genes (KRT7, KRT8, KRT17, KRT18, and KRT80), and the upper quartile of the KGS score was chosen as the cutoff. The Kaplan-Meier method was evaluated to compare survival outcomes between KGS-high and KGS-low groups. The underlying mechanism was further investigated by GSEA, GSVA, and other bioinformatic algorithms. Results High expression of the KGS signature exhibited a robust association with poorer overall survival (OS) in the TCGA-LUAD dataset (HR: 1.81; 95% CI: 1.35-2.42, P = 0.00011). The association was further corroborated in three external GEO cohorts, including GSE31210 (HR: 3.31; 95% CI: 1.7-6.47, P = 0.00017), GSE72094 (HR: 1.95; 95% CI: 1.34-2.85, P = 0.00057) and GSE26939 (HR: 3.19; 95% CI: 1.74-5.84, P < 0.0001). Interestingly, KGS-high tumors revealed enrichments in TGF-β and WNT-β catenin signaling pathways, exhibited heightened activation of the epithelial-mesenchymal transition (EMT) pathway and proved intensified tumor stemness compared to their KGS-low counterparts. Additionally, KGS-high tumor cells exhibited increased sensitivity to several targeted agents, including gefitinib, erlotinib, lapatinib, and trametinib, in comparison to KGS-low cells. Conclusion This study developed a KGS score that independently predicts the prognosis in LUAD. High expression of KGS score, accompanied by upregulation of TGF-β and WNT-β catenin signaling pathways, confers more aggressive EMT and tumor progression.
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Affiliation(s)
- Gang Li
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan People’s Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Jinbao Guo
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yunfei Mou
- Department of Thoracic Surgery, Chengdu Third People’s Hospital, Chengdu, 610082, China
| | - Qingsong Luo
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan People’s Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Xuehai Wang
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan People’s Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Wei Xue
- Burning Rock Biotech, Guangzhou, 510300, China
| | - Ting Hou
- Burning Rock Biotech, Guangzhou, 510300, China
| | - Tianyang Zeng
- Department of Cardiothoracic Surgery, First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yi Yang
- Department of Thoracic Surgery, Chengdu Third People’s Hospital, Chengdu, 610082, China
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Zeng T, Jia T. [Progress in methodology of the Global Burden of Disease Study and its impact on the disease burden of parasitic diseases]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:299-306. [PMID: 37455104 DOI: 10.16250/j.32.1374.2022287] [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] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Currently, the Global Burden of Disease Study (GBD) is the most comprehensive, systematic, and largest-scale global observational epidemiological project, which measures the national, regional and global mortality and disability of diseases, injuries and risk factors that threaten human health using unified indicators, such as disability-adjusted life year. This review describes the development history, assessment process and methodological advances of GBD, and discusses the impact of GBD on the burden of parasitic diseases, aiming to provide insights into the widespread use of GBD.
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Affiliation(s)
- T Zeng
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research); WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases; National Health Commission Key Laboratory of Parasite and Vector Biology, Shanghai 200025, China
| | - T Jia
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research); WHO Collaborating Centre for Tropical Diseases; National Center for International Research on Tropical Diseases; National Health Commission Key Laboratory of Parasite and Vector Biology, Shanghai 200025, China
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Zeng T, Lü S, Tian L, Li S, Sun L, Jia T. [Temporal trends in disease burden of major human parasitic diseases in China from 1990 to 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:7-14. [PMID: 36974009 DOI: 10.16250/j.32.1374.2023001] [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] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
OBJECTIVE To analysize the temporal trends in the disease burden of major human parasitic diseases in China from 1990 to 2019, so as to provide the evidence for improving the parasitic disease control strategy in China. METHODS The disability-adjusted life years (DALYs) of malaria, intestinal nematode infections, schistosomiasis, food-borne trematodiases, cysticercosis and echinococcosis in China from 1990 to 2019 were captured from the Global Burden of Disease Study 2019 (GBD 2019), and age- and gender-specific DALYs of parasitic diseases were estimated. The temporal trends in DALYs of malaria, intestinal nematode infections, schistosomiasis, food-borne trematodiases, cysticercosis and echinococcosis were evaluated in China from 1990 to 2019 using average annual percent change (AAPC) with Joinpoint regression analysis. RESULTS The DALYs were 643 836.42 person-years due to food-borne trematodiases, 156 853.03 person-years due to cysticercosis, 79 764.62 person-years due to schistosomiasis, 70 989.73 person-years due to intestinal nematode infections, 4 258.61 person-years due to echinococcosis and 264.86 person-years due to malaria in China in 2019, respectively. The overall DALYs of six parasitic diseases were higher among men (546 441.93 person-years) than among women (409 525.33 person-years), and were greater among adults at ages of 14 to 65 years (684 780.84 person-years) than among children at 14 years and lower (35 437.38 person-years) and the elderly at ages of 65 years and older (235 749.04 person-years). During the period from 1990 to 2019, food-borne trematodiases were the leading cause of DALYs among the six parasitic diseases, and cysticercosis shifted from the fourth leading cause in 1990 to the second leading cause of DALYs in China in 2019, while intestinal nematode infections shifted from the second leading cause in 1990 to the fourth leading cause of DALYs in 2019. The DALYs of major human parasitic diseases appeared an overall tendency towards a decline in China from 1990 to 2019, with the fastest drop seen in DALYs due to malaria (AAPC = -19.6%, P = 0.003), followed by due to intestinal nematode infections (AAPC = -8.2%, P < 0.001) and schistosomiasis (AAPC = -3.1%, P < 0.001), and a slow decline was seen in the DALYs of food-borne trematodiases (AAPC = -1.0%, P < 0.001), while there were no significant decrease in the DALYs of echinococcosis (AAPC = -0.5%, P = 0.264) and the DALYs of cysticercosis appeared a tendency towards a rise (AAPC = 0.7%, P < 0.001). CONCLUSIONS The disease burden of major human parasitic diseases appeared an overall tendency towards a decline in China from 1990 to 2019, with a high disease burden seen due to food-borne parasitic diseases, no remarkable reduction seen in echinococcosis, and a tendency towards a rise seen in cysticercosis. It is recommended to focus on echinococcosis control, and continue to consolidate the control achievements of other major human parasitic diseases in China; meanwhile, the surveillance and prevention of food-borne parasitic diseases should be reinforced.
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Affiliation(s)
- T Zeng
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - S Lü
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - L Tian
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - S Li
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - L Sun
- Jiangsu Institute of Parasitic Diseases, China
| | - T Jia
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
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Mei ZQ, Zeng T, Cai XT, Hu BJ, Li SM, Zhou J, Jia TW. [Diagnostic efficacy of indirect haemagglutination assay for detection of Schistosoma japonicum infections among boatmen and fishermen in the Dongting Lake region]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:300-306. [PMID: 35896494 DOI: 10.16250/j.32.1374.2022110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate the diagnostic efficacy of indirect haemagglutination assay (IHA) for detection of Schistosoma japonicum infections among boatmen and fishermen in Dongting Lake region, so as to provide insights into improving the schistosomiasis surveillance program among boatmen and fishermen. METHODS The boatmen and fishermen were detected for S. japonicum infections using IHA and Kato-Katz technique or miracidium hatching test nylon gauze simultaneously at schistosomiasis testing sites in the anchor sites for boatmen and fishermen in the Dongting Lake region during the period from 2014 to 2016, and using IHA for serological screening followed by parasitological testing of seropositives during the period from 2017 to 2019. The sensitivity and specificity of IHA were evaluated for detection of S. japonicum infections among boatmen and fishermen, with the 2014-2016 parasitological testing results as a gold standard. In addition, the seroprevalence of S. japonicum infections was compared among boatmen and fishermen with different characteristics and among years. RESULTS A total of 306 schistosomiasis testing sites were assigned for boatmen and fishermen, and a total of 143 360 person-time boatmen and fishermen were tested for S. japonicum infections in the Dongting Lake region from 2014 to 2019. The sensitivity and specificity of IHA were 69.9%, 97.3% and 96.1% (χ2 = 74.6, P < 0.05), and 70.9%, 74.5% and 71.9% for detection of S. japonicum infections from 2014 to 2016 (χ2 = 29.4, P < 0.05), respectively. The seroprevalence of S. japonicum infections reduced from 30.3% in 2014 to 1.8% in 2019 among boatmen and fishermen, appearing an overall tendency towards a decline (Z = 1 552.4, P < 0.05). In addition, male, individuals at ages of 45 to 60 years, full-time boatmen and fishermen were more likely to be seropositive for S. japonicum infections (all P values < 0.05). CONCLUSIONS The seroprevalence of S. japonicum infections appeared a tendency towards a decline among boatmen and fishermen in the Dongting Lake region year by year from 2014 to 2019. IHA presented a high efficacy for screening of S. japonicum infections among boatmen and fishermen in the Dongting Lake region.
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Affiliation(s)
- Z Q Mei
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - T Zeng
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
| | - X T Cai
- Hunan Institute of Schistosomiasis Control, China
| | - B J Hu
- Hunan Institute of Schistosomiasis Control, China
| | - S M Li
- Hunan Institute of Schistosomiasis Control, China
| | - J Zhou
- Hunan Institute of Schistosomiasis Control, China
| | - T W Jia
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), National Health Commission Key Laboratory of Parasite and Vector Biology, WHO Collaborating Centre for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai 200025, China
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Yang X, Zeng T, Liu Z, He W, Hu M, Tang T, Chen L, Xing L. Long noncoding RNA GK-IT1 promotes esophageal squamous cell carcinoma by regulating MAPK1 phosphorylation. Cancer Med 2022; 11:4555-4574. [PMID: 35608100 PMCID: PMC9741976 DOI: 10.1002/cam4.4795] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 02/13/2022] [Accepted: 03/30/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Long noncoding RNAs (lncRNAs) are implicated in the oncogenesis and metastasis of multiple human cancers. Nonetheless, the precise molecular mechanisms underlying the oncogenic role of lncRNA in esophageal squamous cell carcinoma (ESCC) remains to be clarified. METHODS The expression of GK intronic transcript 1 (GK-IT1) was analyzed using ESCC RNA-seq data from The Cancer Genome Atlas database. Quantitative real-time PCR was used to measure the expression of GK-IT1 in ESCC clinical samples and cells. The correlation between GK-IT1 expression and clinicopathological variables was examined using chi-squared tests. Kaplan-Meier survival and Cox regression analyses were employed to generate the survival curve and assess the prognostic value of GK-IT1. Functional experiments were utilized to explore the role of GK-IT1 in promoting cell migration, invasion, proliferation, and suppressing apoptosis and autophagy in ESCC. To understand the mechanism, an RNA pulldown assay, RNA immunoprecipitation, agarose gel electrophoresis, immunofluorescence, and co-immunoprecipitation assays were used. RESULTS In this study we identified an unreported lncRNA, termed GK-IT1 that was aberrantly overexpressed in ESCC tissues and cells. GK-IT1 was closely associated with advanced clinical stage, and it was an independent prognostic indicator of ESCC. Functional assays verified that GK-IT1 significantly promoted ESCC proliferation, invasion, and migration, and suppressed ESCC apoptosis and autophagy. Furthermore, tumorigenesis experiments in nude mice indicated that GK-IT1 promoted ESCC tumor growth and metastasis. Mechanistically, GK-IT1 competitively bound to mitogen-activated protein kinase 1 (MAPK1) to prevent the interaction between dual specificity phosphatase 6 (DUSP6) and MAPK1, thereby controlling the phosphorylation of MAPK1 and promoting ESCC progression. CONCLUSION Our study revealed that GK-IT1 competed with DUSP6 to attenuate the interaction between DUSP6 and MAPK1, leading to activation of the ERK/MAPK pathway, thereby promoting progression of ESCC. Our research indicated that GK-IT1 served as a novel potential target for the diagnosis and treatment of ESCC.
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Affiliation(s)
- Xin Yang
- Department of Thoracic SurgeryThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Tianyang Zeng
- Department of Thoracic SurgeryThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Ziyang Liu
- Department of Thoracic SurgeryThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Wanlun He
- The Frist People's HospitalChongqing Liang Jiang New AreaChongqingChina
| | - Mengting Hu
- Department of Cell Biology and GeneticsChongqing Medical UniversityChongqingChina
| | - Ti Tang
- Department of Thoracic SurgeryThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Li Chen
- Department of Thoracic SurgeryThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Lei Xing
- Department of Endocrine and Breast SurgeryThe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
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Liu L, Hui R, Zeng T, Yang X, Wu Q, Yang T. CUL4B is a Potential Novel Prognostic Biomarker and is Correlated with Immune Infiltrates in Malignant Pleural Mesothelioma. Int J Gen Med 2022; 15:4613-4623. [PMID: 35535145 PMCID: PMC9078356 DOI: 10.2147/ijgm.s355889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/22/2022] [Indexed: 12/21/2022] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Lu Liu
- Intensive Care Unit of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Ruting Hui
- Department of Rehabilitation Medicine, Chengdu First People’s Hospital, Chengdu, 61007, People’s Republic of China
| | - Tianyang Zeng
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Xuetao Yang
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Qingchen Wu
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Tao Yang
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Department of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT, 06520, USA
- Correspondence: Tao Yang, Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, People’s Republic of China, Email
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Yang T, Hui R, Nouws J, Sauler M, Zeng T, Wu Q. Untargeted metabolomics analysis of esophageal squamous cell cancer progression. J Transl Med 2022; 20:127. [PMID: 35287685 PMCID: PMC8919643 DOI: 10.1186/s12967-022-03311-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 02/14/2022] [Indexed: 02/08/2023] Open
Abstract
Abstract90% of esophageal cancer are esophageal squamous cell carcinoma (ESCC) and ESCC has a very poor prognosis and high mortality. Nevertheless, the key metabolic pathways associated with ESCC progression haven’t been revealed yet. Metabolomics has become a new platform for biomarker discovery over recent years. We aim to elucidate dominantly metabolic pathway in all ESCC tumor/node/metastasis (TNM) stages and adjacent cancerous tissues. We collected 60 postoperative esophageal tissues and 15 normal tissues adjacent to the tumor, then performed Liquid Chromatography with tandem mass spectrometry (LC–MS/MS) analyses. The metabolites data was analyzed with metabolites differential and correlational expression heatmap according to stage I vs. con., stage I vs. stage II, stage II vs. stage III, and stage III vs. stage IV respectively. Metabolic pathways were acquired by Kyoto Encyclopedia of Genes and Genomes. (KEGG) pathway database. The metabolic pathway related genes were obtained via Gene Set Enrichment Analysis (GSEA). mRNA expression of ESCC metabolic pathway genes was detected by two public datasets: gene expression data series (GSE)23400 and The Cancer Genome Atlas (TCGA). Receiver operating characteristic curve (ROC) analysis is applied to metabolic pathway genes. 712 metabolites were identified in total. Glycerophospholipid metabolism was significantly distinct in ESCC progression. 16 genes of 77 genes of glycerophospholipid metabolism mRNA expression has differential significance between ESCC and normal controls. Phosphatidylserine synthase 1 (PTDSS1) and Lysophosphatidylcholine Acyltransferase1 (LPCAT1) had a good diagnostic value with Area under the ROC Curve (AUC) > 0.9 using ROC analysis. In this study, we identified glycerophospholipid metabolism was associated with the ESCC tumorigenesis and progression. Glycerophospholipid metabolism could be a potential therapeutic target of ESCC progression.
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Chen C, Zhao J, Fan D, Qi Q, Zeng T, Bi Y. Microwave-assisted co-pyrolysis of chlorella vulgaris and polypropylene: Characteristic and product distribution analyses. Bioresour Technol 2022; 344:126279. [PMID: 34752889 DOI: 10.1016/j.biortech.2021.126279] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 09/28/2021] [Revised: 10/29/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
The co-pyrolysis characteristics and product yield of Chlorella vulgaris (CV) and polypropylene (PP) under different mixing ratios (10:0, 8:2, 6:4, 5:5, 4:6, 2:8 and 0:10) were studied by microwave oven. Then the effects of different graphite (GP) additions (10%, 20%, 30% and 40%) on the optimum mixing ratio of CV and PP were investigated. The composition of bio-oil was analyzed by GC-MS. The results indicated that the C8P2 (CV/PP = 8:2) group had the best pyrolysis characteristics. The maximum weight loss rate (Rm) and average weight loss rate (Rv) of the C8P2 with 30% GP addition achieved the peak value. In the absence of GP, compared with C10P0 group, the contents of nitrogen compounds in bio-oil of the C8P2 group decreased by 21.58%. After adding GP to the C8P2 group, the nitrogen compounds in bio-oil of 30% GP group was 1.93% lower than that in 0% GP group.
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Affiliation(s)
- Chunxiang Chen
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China; Guangxi Key Laboratory of Petrochemical Resources Processing and Process Intensification Technology, Nanning City 530004, China; Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, Guangzhou City 510640, China.
| | - Jian Zhao
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China
| | - Dianzhao Fan
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China
| | - Qianhao Qi
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China
| | - Tianyang Zeng
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China
| | - Yingxin Bi
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, China
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Chen C, Qi Q, Zhao J, Zeng T, Fan D, Qin Y. Study on microwave pyrolysis and production characteristics of Chlorella vulgaris using different compound additives. Bioresour Technol 2021; 341:125857. [PMID: 34523553 DOI: 10.1016/j.biortech.2021.125857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/24/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Pyrolysis characteristics and bio-oil of Chlorella vulgaris were investigated under SiC and ZnO (SZ) mixture (compound additive) with various mixing ratios (S/Z = 10:0, 7:3, 5:5, 3:7, 0:10) and addition amounts (5%, 10%, 15%) by thermogravimetric analysis and GC-MS. At three experimental groups of 10% compound additive, as ZnO in compound additive increased, maximum weight loss rate (Rp) increased, the time (tp) corresponding to Rp and the weight stabilization time (tf) first decreased and then increased, while average rate of weight loss (Ra) and total weight loss (M) first increased and then decreased; maximum temperature rising rate (Hx) and average rate of temperature rising (Hg) increased, while the time (tx) corresponding to Hx decreased. Compound additives reduced the bio-oil yield, increased the gas yield, and reduced the acid compounds in bio-oil. Besides, it might promote the production of alicyclic hydrocarbons and oxygen/nitrogen-containing long-chain compounds.
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Affiliation(s)
- Chunxiang Chen
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, PR China; Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Nanning City 530004, PR China; Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, Guangzhou City 510640, China.
| | - Qianhao Qi
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, PR China
| | - Jian Zhao
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, PR China
| | - Tianyang Zeng
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, PR China
| | - Dianzhao Fan
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, PR China
| | - Yuemei Qin
- College of Mechanical Engineering, Guangxi University, University Road 100, Xixiangtang District, Nanning City 530004, PR China
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Li J, Zeng T, Tang S, Zhong M, Huang Q, Li X, He X. Medical ozone induces proliferation and migration inhibition through ROS accumulation and PI3K/AKT/NF-κB suppression in human liver cancer cells in vitro. Clin Transl Oncol 2021; 23:1847-1856. [PMID: 33821368 DOI: 10.1007/s12094-021-02594-w] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/09/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND Hepatocellular carcinoma is one of the most common malignancies and leading cancer-associated deaths worldwide. Ozone has been proposed as a promising therapeutic agent in the treatment of various disorders. PURPOSE The purpose of this paper is to assess the potential anticancer effects of the ozone on liver cancer cells. METHOD The liver cancer cell line of bel7402 and SMMC7721 was used in this study. Proliferation was evaluated using the CCK-8 and the colony formation assay. Wond healing assay and transwell assay without Matrigel were used to evaluate their migration ability. Flow cytometry was used for cell cycle analysis and reactive oxygen species (ROS) determination. Glutathione detection kit was used for measurement of glutathione level. Protein expression was estimated by western blot analysis. RESULTS Ozone treatment inhibited liver cancer cell proliferation, colony formation. Ozone induced G2/M phase cell cycle arrest, which could be elucidated by the change of protein levels of p53, p21, Cyclin D1, cyclin B1, cdc2, and CDK4. We also found that ozone treatment inhibited migration ability by inhibiting EMT-relating protein. Ozone also induced ROS accumulation and decreased glutathione level decreased, which contributed to the inactivation of the PI3K/AKT/NF-κB pathway. Finally, we found that pre-treatment of liver cancer cells with N-acetylcysteine resisted ozone-induced effects. CONCLUSIONS Ozone restrains the proliferation and migration potential and EMT process of liver cancer cells via ROS accumulation and PI3K/AKT/NF-κB suppression.
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Affiliation(s)
- J Li
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China
| | - T Zeng
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
- Department of Medical Laboratory, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, People's Republic of China
| | - S Tang
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China
| | - M Zhong
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Q Huang
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - X Li
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China
| | - X He
- Division of Vascular and Interventional Radiology, Department of General Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, Guangdong, People's Republic of China.
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12
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Abstract
Abstract
The optimization measures in the physical protection system monitoring center of a nuclear power plant include the prioritization of alarm signals, optimization of sound and light alarm form, improvement of the layout of video monitor screen, security training, and strengthening of organizational management. Based on the fuzzy analytic hierarchy process, the influence of these factors on the probability of alert assessment and guard’s respond time in the EASI method are quantitatively analyzed. Making full use of the measures for prioritization of alarm signals can effectively promote the improvement of human-computer interaction efficiency. The degree of influence of the four factors (guarder’s status, decision strategy, guarder’s training and organization management) on guard’s decision-making is roughly the same.
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Affiliation(s)
- T. Zeng
- School of Electrical Engineering and School of Nuclear Science and Technology University of South China Hengyang 421001 China
| | - X. Yang
- School of Nuclear Science and Technology and CNNC key laboratory on high trusted computing and School of Computer University of South China Hengyang 421001 China
| | - Y. Wan
- CNNC key laboratory on high trusted computing and School of Computer University of South China Hengyang 421001 China
| | - Y. Mao
- School of Computer University of South China Hengyang 421001 China
| | - Z. Liu
- School of Computer University of South China Hengyang 421001 China
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13
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Li X, Li X, Zeng T, Liu Y, Hu T, Huang J, Wu Y, Yu J, Pei Z, Tan L. The clinical value of serum sirtuin-1 in the diagnosis of rheumatoid arthritis: a pilot study. Br J Biomed Sci 2021; 78:191-194. [PMID: 33507129 DOI: 10.1080/09674845.2021.1880085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Introduction: Cell biology studies, animal models and other data suggest a role for sirtuin-1 in the pathogenesis of rheumatoid arthritis (RA). We hypothesized the clinical significance of serum sirtuin-1 in this disease.Methods: Serum was obtained from 141 RA patients, 144 non-RA patients and 88 healthy controls. Sirtuin-1, anti-mutant citrulline vimentin antibody (anti-MCV), anti-cyclic citrulline polypeptide antibody (anti-CCP), rheumatoid factor and C-reactive protein were measured by immunological methods, and erythrocyte sedimentation rate was determined by the Westergren method.Results: All markers were higher in the RA group than in the non-RA group and the healthy control group (P < 0.01). The specificity of sirtuin-1 for the diagnosis of RA was 97% (the highest among all markers), sensitivity was 71%. In ROC curve analysis, the AUCs (95% CI) of sirtuin-1, anti-CCP and anti-MCV were 0.87 (0.82-0.91), 0.91 (0.88-0.94) and 0.92 (0.89-0.95) respectively (all p < 0.01). The combination of sirtuin-1and anti-MCV gave the highest Youden index of 0.79, whilst Cox regression showed sirtuin-1 and rheumatoid factor were the strongest independent predictors of RA.Conclusions: Serum sirtuin-1 is increased in RA, and may have a place is the diagnosis of this disease when combined with other markers.
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Affiliation(s)
- X Li
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - X Li
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - T Zeng
- Department of Clinical Laboratory, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Y Liu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - T Hu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Huang
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Y Wu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Yu
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Z Pei
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - L Tan
- Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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14
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Chen XX, Jiang YJ, Zeng T, Li JJ. Overexpression of the long noncoding RNA NEAT1 protects against As2O3-induced injury of cardiomyocyte by inhibiting the miR-124/NF-κB signaling pathway. Eur Rev Med Pharmacol Sci 2021; 24:1378-1390. [PMID: 32096187 DOI: 10.26355/eurrev_202002_20195] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Arsenic trioxide (As2O3) an evident effect in the treatment of acute promyelocytic leukemia and other malignant tumors in recent years. However, more and more studies have found that the cardiac toxicity of As2O3 was increased, limiting its wide clinical application. This study aims to explore the molecule mechanisms of As2O3 on cardiomyocyte injury. MATERIALS AND METHODS The cardiomyocyte injury under As2O3 was detected by MTT assay. The levels of NEAT1 and miR-124 were examined by RT-PCR. The functions of NEAT1 and miR-124 at H9c2 cell injury under As2O3 were detected by cell transfection of the overexpression or repression. The expression levels of inflammation factors, apoptosis genes and NF-κB signals were measured by Western blot in H9c2 cell lines under As2O3. The luciferase assay detected the direct interaction between NEAT1 and miR-124. RESULTS The overexpression of NEAT1 decreased the H9c2 cells injury under As2O3. The levels of IL-1β, IL-6, TNF-α were upregulated after NEAT1 overexpression. Moreover, the luciferase assay results showed NEAT1 was directly interacting with miR-124. Silencing of miR-124 significantly increased the H9c2 cell survival under As2O3 by repressing NF-κB signaling pathway. Furthermore, the overexpression of NEAT1 markedly increased H9c2 cells survival under As2O3, while the miR-124 could reverse the effects. Finally, NEAT1 regulated the H9c2 cells As2O3 injury by repressing the miR-124, NF-kappa B expressions and inflammatory response. CONCLUSIONS According to the results, we found that long non-coding RNA NEAT1 regulated the expression of inflammatory factors to protect cardiomyocytes from As2O3 damage by inhibiting miR-124/NF-kappa B signaling pathway. It provides a novel potential treatment strategy for As2O3 cardiomyocytes injury.
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Affiliation(s)
- X-X Chen
- Department of Emergency, The First Affiliated Hospital to Third Military Medical University (Army Medical University), Chongqing, China.
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15
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Gu T, Li G, Wu X, Zeng T, Xu Q, Li L, Vladyslav S, Chen G, Lu L. Pattern-recognition receptors in duck ( Anas platyrhynchos): identification, expression and function analysis of toll-like receptor 3. Br Poult Sci 2020; 62:346-352. [PMID: 33215508 DOI: 10.1080/00071668.2020.1853045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
1. Innate immunity provides the first line of defence against pathogenic organisms through a myriad of germline encoded receptors called pattern-recognition receptors (PRRs). Toll-like receptor (TLR) 3, as an important member of PRRs, is indispensable for host defence against viral infection by recognising virus-derived RNAs. However, little is known about the structure and function of TLR3 in ducks (Anas platyrhynchos), a natural host for the avian influenza virus.2. This study cloned the full-length cDNA of duck TLR3 using reverse transcription polymerase chain reaction (RT-PCR) with rapid amplification of cDNA ends (RACE). The cDNA sequence of duck TLR3 was 4046 bp in length and encoded 895 amino acids. Multiple sequence alignment showed that duck TLR3 shared high similarity with that from other vertebrates.3. Quantitative real-time PCR (qRT-PCR) analysis suggested that TLR3 mRNA was constitutively expressed in all tissues tested, having higher levels in the kidney, liver, breast muscle, ovary and heart. After stimulation with viral- or bacterial-mimics, including LPS, poly(I:C), pam3CSK4, FLS-1, FLA-ST and R848, the TLR3 transcript was significantly upregulated. Meanwhile, overexpression of duck TLR3 significantly promoted the transcription of IFN-β, IRF7, TRIF, Mx, STAT1 and STAT2 mRNA after stimulation with poly(I:C).4. These results suggested that TLR3 play an important role in resistance against viral and bacterial infections in ducks.
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Affiliation(s)
- T Gu
- Jiangsu Key Laboratory for Animal Genetic, Breeding and Molecular Design, Yangzhou University, Yangzhou, Jiangsu, China.,Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - G Li
- Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - X Wu
- Jiangsu Key Laboratory for Animal Genetic, Breeding and Molecular Design, Yangzhou University, Yangzhou, Jiangsu, China
| | - T Zeng
- Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Q Xu
- Jiangsu Key Laboratory for Animal Genetic, Breeding and Molecular Design, Yangzhou University, Yangzhou, Jiangsu, China
| | - L Li
- Zhuji Poultry Development Co., Ltd, Zhuji, Zhejiang, China
| | - S Vladyslav
- University of Life and Environment Sciences, National Academy Science of Ukraine, Kyiv, Ukraine
| | - G Chen
- Jiangsu Key Laboratory for Animal Genetic, Breeding and Molecular Design, Yangzhou University, Yangzhou, Jiangsu, China
| | - L Lu
- Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
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Hua Y, Yang F, Yang Y, Bao S, Sun C, Yan X, Zeng T, Jiang M, Huang X, Wu H, Li J, Li W, Yin Y. 50P Efficacy and safety analysis of pyrotinib in lapatinib resistant HER2-positive metastatic breast cancer: A retrospective study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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17
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Yang Y, Sun C, Huang X, Zeng T, Hua Y, Yang F, Li W, Yin Y. 56P Treatment of palbociclib in hormone receptor-positive breast cancer in China: A real-world study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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18
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Yang QY, Jia YJ, Wang YP, Zeng T, Zhao XD, Zhou LN. [Clinical and immunological characteristics of a case with activated phosphoinositide 3-kinase δ syndrome 2]. Zhonghua Er Ke Za Zhi 2020; 58:413-417. [PMID: 32392959 DOI: 10.3760/cma.j.cn112140-20190925-00614] [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 the clinical and immunological characteristics of a patient with activated phosphoinositide 3-kinase δ syndrome 2 (APDS2). Methods: A retrospective analysis of clinical data, immune-related gene sequencing, imaging and laboratory findings of a patient with APDS2 admitted to Children's Hospital of Chongqing Medical University was performed. The absolute and relative numbers of peripheral lymphocyte subsets, immune cell subsets and phenotypes were detected by flow cytometry with the age matched healthy child or the patient's father as a control. Results: A female patient aged 6 years and 4 months old was firstly admitted due to paleness over one month and cough for 7 days in June 2017. The IgA (<0.067 g/L) decreased while the IgM (2.55 g/L) increased. The abdominal ultrasound found hepatomegaly (subcostal 1.7 cm) and splenomegaly (subcostal 3.6 cm), and gene sequencing revealed a heterozygous mutation in the PIK3R1 gene c.1425+1G>A. After the treatment with prednisone which was initiated with a dose of 10 mg/times, 3 times/d and continued and tapered over 7 months, the IgM decreased to normal (1.72 g/L), and the hepatomegaly (subcostal 0 cm) and splenomegaly (subcostal 0.5 cm) were improved. The patient was readmitted due to pale and sallow complexion for half a month in July 2019. The percentage of naive CD4(+)T (0.386) and naive CD8(+)T cells (0.271) were decreased while the percentage of terminally differentiated effector memory CD8(+)T cells (0.377) and transitional B cells (0.223) were increased. The mean fluorescence intensity (MFI) of phosphorylated protein kinase B (AKT) in CD3(+)T, CD4(+)T and CD8(+)T cells were higher in the patient (4 125, 5 213, 3 497) than those in her father (3 434, 3 312, 3 058). The percentage of follicular helper T cell (Tfh) (0.299), Th1 (0.491) and Th1-like cells (0.438) in the patient were higher than those in the healthy control (0.156,0.313,0.303), while the percentage of Th17 (0.126) and Th17-like cells (0.188) were lower than those in the healthy control (0.198, 0.315). And the percentage of CD57 in the patient (0.306) was also higher than that in the healthy control (0.246). Conclusions: The humoral immunity and cellular immunity of APDS2 patient are impaired to varying degrees. The steroid can improve the lymphoproliferation and autoimmune hemolytic anemia in this case.
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Affiliation(s)
- Q Y Yang
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - Y J Jia
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - Y P Wang
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - T Zeng
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - X D Zhao
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - L N Zhou
- Department of Pediatric Research Institute, Children's Hospital of Chongqing Medical University, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
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Zeng T, Li W, Yi Y. 75P Clinical and pathological feature of primary lung cancer in patients with primary breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.03.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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20
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Bai X, Zeng T, Ni XY, Su HA, Huang J, Ye GY, Lu YY, Qi YX. CRISPR/Cas9-mediated knockout of the eye pigmentation gene white leads to alterations in colour of head spots in the oriental fruit fly, Bactrocera dorsalis. Insect Mol Biol 2019; 28:837-849. [PMID: 31106480 DOI: 10.1111/imb.12592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/16/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
The intensely studied white gene is widely used as a genetic marker in Drosophila melanogaster. Here, we cloned and characterized the white gene in an important pest of the fruit industry, Bactrocera dorsalis, to understand its functional role in pigmentation. We obtained BdWhite knockout strains, based on the wild-type strain, using the CRISPR/Cas9 genome editing system, and found that mutants lost pigmentation in the compound eye and their black head spots. We then examined differences in the expression levels of genes associated with melanin pigmentation between mutants and the wild-type strain using quantitative reverse transcription PCR. We found that transcription levels of the Bd-yellow1 were lower in the head of mutants than in the wild-type strain, and there were no significant differences in expression of the other six genes between mutants and the wild type. Since yellow is critical for melanin biosynthesis (Heinze et al., Scientific Reports. 2017;7:4582), the lower levels of expression of Bd-yellow1 in mutants led to reduced dark pigmentation in head spots. Our results provide the first evidence, to our knowledge, that white may play a functional role in cuticle pigmentation by affecting the expression of yellow.
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Affiliation(s)
- X Bai
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - T Zeng
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - X-Y Ni
- Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - H-A Su
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - J Huang
- Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - G-Y Ye
- Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Y-Y Lu
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Y-X Qi
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
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Tian Y, Li G, Shen J, Tao Z, Chen L, Zeng T, Lu L. Molecular cloning, characterisation, and expression patterns of pigeon CCAAT/enhancer binding protein-α and -β genes. Br Poult Sci 2019; 60:347-356. [PMID: 31064204 DOI: 10.1080/00071668.2019.1614530] [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: 02/06/2023]
Abstract
1. CCAAT/enhancer binding proteins (C/EBPs), as a family of transcription factors, consists of six functionally and structurally related proteins which share a conserved basic leucine zipper (bZIP) DNA-binding domain. The aim of this study was to clone the full-length coding sequences (CDS) of C/EBP-α and -β genes, and determine the abundance of these two genes in various tissues of white king pigeon (C. livia). 2. The complete cDNA sequences of C/EBP-α and -β genes were cloned from pigeons by using PCR combined with rapid amplification of cDNA ends (RACE). The sequences were bioinformatically analysed, and the tissue distribution determined by quantitative real-time RT-PCR (qRT-PCR). 3. The results showed that the full-length cDNA sequences of pigeon C/EBP-α and -β genes were 2,807bp and 1,778bp, respectively. The open reading frames of C/EBP-α (978 bp) and -β (987bp) encoded 325 amino acids and 328 amino acids, respectively. The pigeon C/EBP-α and C/EBP-β proteins were predicted to have a conserved basic leucine zipper (bZIP) domain, which is a common structure feature of the C/EBP family. Multiple sequence alignments indicated that pigeon C/EBP-α and -β shared more than 90% amino-acid identity with their corresponding homologues in other avian species. Phylogenetic analysis revealed that these two proteins were highly conserved across different species and evolutionary processes. QRT-PCR results indicated that the pigeon C/EBP-α and -β mRNA transcripts were expressed in all investigated organs. The mRNA expression levels of pigeon C/EBP-α in descending order, were in spleen, heart, liver, lung, kidney and muscle. The pigeon C/EBP-β gene had the most abundant expression in lung, followed by the kidney, with minimal expression detected in muscle. 4. This study investigated the full-length cDNA sequences, genetic characteristics and tissue distribution of pigeon C/EBP-α and -β genes and found that they may have functions in various tissues of pigeon. This provides a foundation for further study for regulatory mechanisms of these two genes in birds.
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Affiliation(s)
- Y Tian
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
| | - G Li
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
| | - J Shen
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China
| | - Z Tao
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China
| | - L Chen
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China
| | - T Zeng
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
| | - L Lu
- a Zhejiang Academy of Agricultural Sciences , Institute of Animal Husbandry and Veterinary Science , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
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Huang J, Zeng T, Zhang X, Tian Y, Wu Y, Yu J, Pei Z, Liu Y, Hu T, Tan L. Clinical diagnostic significance of 14-3-3η protein, high-mobility group box-1, anti-cyclic citrullinated peptide antibodies, anti-mutated citrullinated vimentin antibodies and rheumatoid factor in rheumatoid arthritis. Br J Biomed Sci 2019; 77:19-23. [PMID: 31433746 DOI: 10.1080/09674845.2019.1658425] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Introduction: Circulating markers of rheumatoid arthritis (RA) include the 14-3-3η protein, high-mobility group box-1 (HMGB1), anti-cyclic citrullinated peptide (anti-CCP) antibodies, anti-mutated citrullinated vimentin (anti-MCV) antibodies and rheumatoid factor (RF). We set out to determine which two markers in combination provided best discriminatory power for this disease.Methods: We recruited 108 RA patients, 102 non-RA patients (SLE, AS, Sjogren's syndrome, MCTD) and 90 healthy controls. Sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, negative likelihood ratio and the Youden index of each analyte were calculated and binary logistic regression analysis and receiver operating characteristic (ROC) curve were performed to evaluate their diagnostic value for RA alone and in paired combination.Results: As expected, all markers were elevated in RA patients (P < 0.05). Binary logistic regression analysis showed that 14-3-3η had the highest odds ratio (95% CI) at 2.4 (1.9-2.8). Anti-CCP and anti-MCV had the highest areas under the curves [AUC (95% CI)] at 0.85 (0.78-0.90) and 0.85 (0.78-0.91) respectively (both P < 0.001). In serial detection (one marker followed by another), no combination had a Youden index >0.6. In parallel analysis (both considered together) several combinations had a Youden index >0.7, of which the highest (0.78) was anti-CCP with anti-MCV, with a sensitivity of 93.3% and specificity of 84.7%.Conclusions: Despite individual increases in serum 14-3-3η, HMGB1, anti-CCP, anti-MCV and RF, the combination of anti-CCP and anti-MCV might be of great help for diagnostic in RA, and so should be considered as routine tests for this disease.
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Affiliation(s)
- J Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - T Zeng
- The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - X Zhang
- The Third Hospital of Nanchang City Jiangxi Province, Nanchang, Jiangxi, China
| | - Y Tian
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - Y Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - J Yu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - Z Pei
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - Y Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - T Hu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
| | - L Tan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine, Nanchang, Jiangxi, China
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Li GQ, Tian Y, Chen L, Shen JD, Tao ZR, Zeng T, Xu J, Lu LZ. Cloning, expression and bioinformatics analysis of a putative pigeon melanoma differentiation-associated gene 5. Br Poult Sci 2019; 60:94-104. [PMID: 30595037 DOI: 10.1080/00071668.2018.1564241] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
1. Melanoma differentiation-associated gene 5 (MDA5) is a critical member of cytosolic pattern recognition receptors (PRRs) that recognise viral RNA and mediate type I interferon secretion in host cells. 2. The objective of the present study was to identify and characterise the structure and expression of pigeon MDA5. 3. The full-length MDA5 cDNA was cloned from pigeon spleen using RT-PCR and RACE. The distribution and expression level of pigeon MDA5 in different tissues were determined by QRT-PCR. 4. The results showed that the full-length pigeon MDA5 cDNA had 3858 nucleotides (containing a 210-bp 5'-UTR, a 3030-bp open reading frame and a 618-bp 3'-UTR) encoding a polypeptide of 1009 amino acids. The deduced amino acid sequence contained six conserved structural domains typical of RIG-I-like receptor (RLR), including two tandem arranged N-terminal caspase activation and recruitment domains (CARDs), a DEAH/DEAD box helicase domain (DExDc), a helicase superfamily c-terminal domain (HELICc), a type III restriction enzyme (ResIII) and a C-terminal regulatory domain (RD). 5. The pigeon MDA5 showed 84.8%, 87.3%, 87.9% and 87.2% amino acid sequence identities with previously described homologues from chicken, duck, goose and Muscovy ducks, respectively, and phylogenetic analysis revealed a close relationship among these MDA5. 6. Pigeon MDA5 transcript was ubiquitously expressed in all seven tissues tested in healthy pigeons and showed a high level in the thymus gland and kidney. 7. These findings lay the foundation for further research on the function and mechanism of MDA5 in innate immune responses related to vaccinations and infectious diseases in the pigeon.
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Affiliation(s)
- G-Q Li
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
| | - Y Tian
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
| | - L Chen
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China
| | - J-D Shen
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China
| | - Z-R Tao
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China
| | - T Zeng
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
| | - J Xu
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China
| | - L-Z Lu
- a Institute of Animal Science and Veterinary Medicine , Zhejiang Academy of Agricultural Sciences , Hangzhou , China.,b Key Laboratory of Information Traceability for Agricultural Products , Ministry of Agriculture of China , Hangzhou , China
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24
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Tan L, Meng Y, Zeng T, Wang Q, Long T, Wu S, Guan X, Fu H, Zheng W, Tian Y, Chen J, Yu J, Wu Y, Li H, Cao L. Clinical diagnostic significance of prealbumin, cholinesterase and retinol binding protein in liver cirrhosis combined with encephalopathy. Br J Biomed Sci 2018; 76:24-28. [PMID: 30392460 DOI: 10.1080/09674845.2018.1523673] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 02/08/2023]
Abstract
OBJECTIVE Hepatic encephalopathy is a common consequence of liver cirrhosis, but diagnosis can be difficult as it is based on clinical criteria alone. We hypothesised that serum prealbumin, cholinesterase and retinol binding protein (RBP) can help support the diagnosis of hepatic encephalopathy. METHODS We enrolled 306 cirrhotic patients (110 with encephalopathy), 100 chronic hepatitis B patients and 50 healthy controls, measuring routine liver function tests (ALT, AST, GGT, ALP, and bilirubin), albumin, prothrombin time, prealbumin, cholinesterase and RBP by routine methods. Logistic regression analysis and areas under the receiver operating characteristic curves (AUCs) were used to find predictive factors for hepatic encephalopathy. RESULTS There were differences in all laboratory indices between the three groups (all p < 0.001). In univariate analysis, albumin, prothrombin time, prealbumin, cholinesterase and RBP were significantly altered in those with encephalopathy (p < 0.01), but only prealbumin, cholinesterase and RBP levels were significant predictors in multivariate analysis, and each was linked to the severity of liver fibrosis defined by the Child-Pugh score (all p < 0.001). The AUCs (95% CI) of prealbumin, cholinesterase and RBP for diagnosing liver cirrhosis with hepatic encephalopathy were comparable at 0.85 (81-90), 0.81 (0.76-0.85) and 0.81 (0.76-0.86), respectively (all p < 0.01). CONCLUSIONS Serum prealbumin, cholinesterase and RBP levels are of potential clinical value in diagnosis of liver cirrhosis complicated by encephalopathy.
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Affiliation(s)
- L Tan
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - Y Meng
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - T Zeng
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - Q Wang
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - T Long
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - S Wu
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - X Guan
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - H Fu
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - W Zheng
- b School of Public Health , Nanchang University , Nanchang , Jiangxi , China
| | - Y Tian
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - J Chen
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - J Yu
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - Y Wu
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - H Li
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
| | - L Cao
- a Department of Clinical Laboratory Science, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , Jiangxi , China
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25
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Xiao M, Yang R, Guan MJ, Zhao N, Xie KQ, Zeng T. [Protective effects of N-acetyl-L-cysteine against binge drinking-induced fatty liver in mice]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:169-173. [PMID: 29996215 DOI: 10.3760/cma.j.issn.1001-9391.2018.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the roles of N-acetyl-L-cysteine (NAC) against binge drinking-induced fatty liver in mice. Methods: SPF male C57BL/6 mice were randomly divided into 3 groups, i.e. control group, model group, and NAC/ethanol group (n=10). Mice in model and NAC/ethanol groups were exposed to 3 doses of ethanol (6 g/kg bw) to induced fatty liver, while mice in control group received equal volume and equal energy of maltodextrin solution. NAC was administered to mice at 1 h before ethanol exposure (100 mg/kg bw, i.p.). The mice were sacrificed at 6 h after the last ethanol exposure. The liver and epididymal adipose tissues were collected. Histopathological examination and biochemical assay kit were used to evaluate the fat accumulation, while Western-blot was performed to detect the protein levels of some key factors involved in fat metabolism in liver and adipose tissues. Results: Compored with control group mice, the liver index and liver weight were significantly increased compared with model group, the liver index and TG level in NAC/ethanol group mice were all significantly decreased (P<0.05). Histological examination showed NAC effectively suppressed binge drinking-induced fat accumulation in mice liver. In addition, NAC had no significant effects on the protein levels of peroxisome proliferator-activated receptor-α (PPAR-α), Acy-CoA oxidase (ACOX), sterol regulatory element binding protein 1 c (SREBP-1c) and fatty acid synthase (FAS). Furthermore, the protein levels of hormone sensitive lipase (HSL) did not significantly differ among 3 groups, whereas NAC prevented binge drinking-induced increase of HSL phosphorylation at ser563 and ser660. Conclusion: NAC could effectively attenuate binge drinking-induced fatty liver, which might be associated with the inhibition of lipid mobilization by suppressing the phosphorylation of HSL.
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Affiliation(s)
- M Xiao
- Institute of Toxicology, School of Public Health, Shandong University, Jinan 250012, China
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26
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Tian Y, Zeng T, Tan L, Wu Y, Yu J, Huang J, Pei Z. BPI-ANCA in chronic obstructive pulmonary disease with pulmonary Pseudomonas aeruginosa colonisation: a novel indicator of poor prognosis. Br J Biomed Sci 2018; 75:206-208. [PMID: 30105943 DOI: 10.1080/09674845.2018.1512260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Y Tian
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - T Zeng
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - L Tan
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Y Wu
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - J Yu
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - J Huang
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
| | - Z Pei
- a Department of Clinical Laboratory, Jiangxi Province Key Laboratory of Laboratory Medicine , the Second Affiliated Hospital of Nanchang University , Nanchang , China
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27
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Zeng T, Huang L, Ren J, Chen L, Tian Y, Huang Y, Zhang H, Du J, Lu L. Gene expression profiling reveals candidate genes related to residual feed intake in duodenum of laying ducks. J Anim Sci 2018; 95:5270-5277. [PMID: 29293758 DOI: 10.2527/jas2017.1714] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Feed represents two-thirds of the total costs of poultry production, especially in developing countries. Improvement in feed efficiency would reduce the amount of feed required for production (growth or laying), the production cost, and the amount of nitrogenous waste. The most commonly used measures for feed efficiency are feed conversion ratio (FCR) and residual feed intake (RFI). As a more suitable indicator assessing feed efficiency, RFI is defined as the difference between observed and expected feed intake based on maintenance and growth or laying. However, the genetic and biological mechanisms regulating RFI are largely unknown. Identifying molecular mechanisms explaining divergence in RFI in laying ducks would lead to the development of early detection methods for the selection of more efficient breeding poultry. The objective of this study was to identify duodenum genes and pathways through transcriptional profiling in 2 extreme RFI phenotypes (HRFI and LRFI) of the duck population. Phenotypic aspects of feed efficiency showed that RFI was strongly positive with FCR and feed intake (FI). Transcriptomic analysis identified 35 differentially expressed genes between LRFI and HRFI ducks. These genes play an important role in metabolism, digestibility, secretion, and innate immunity including (), (), (), β (), and (). These results improve our knowledge of the biological basis underlying RFI, which would be useful for further investigations of key candidate genes for RFI and for the development of biomarkers.
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28
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Zeng T, Zhang H, Liu J, Chen L, Tian Y, Shen J, Lu L. Genetic parameters of feed efficiency traits and their relationships with egg quality traits in laying period of ducks. Poult Sci 2018; 97:758-763. [DOI: 10.3382/ps/pex337] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 12/18/2022] Open
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Zhou FZ, Zeng T, Yin SW, Tang CH, Yuan DB, Yang XQ. Development of antioxidant gliadin particle stabilized Pickering high internal phase emulsions (HIPEs) as oral delivery systems and the in vitro digestion fate. Food Funct 2018; 9:959-970. [DOI: 10.1039/c7fo01400g] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In this paper, we demonstrate for the first time the use of gliadin particles to structure algal oil (rich in DHA) and to exert chemical stability against lipid oxidation via the Pickering high internal phase emulsion (HIPE) strategy.
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Affiliation(s)
- F. Z. Zhou
- Research and Development Center of Food Proteins
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety
- South China University of Technology
- Guangzhou 510640
- PR China
| | - T. Zeng
- Research and Development Center of Food Proteins
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety
- South China University of Technology
- Guangzhou 510640
- PR China
| | - S. W. Yin
- Research and Development Center of Food Proteins
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety
- South China University of Technology
- Guangzhou 510640
- PR China
| | - C. H. Tang
- Research and Development Center of Food Proteins
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety
- South China University of Technology
- Guangzhou 510640
- PR China
| | - D. B. Yuan
- Haikou Experimental Station
- Chinese Academy of Tropical Agricultural Sciences
- Haikou 570102
- China
| | - X. Q. Yang
- Research and Development Center of Food Proteins
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety
- South China University of Technology
- Guangzhou 510640
- PR China
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30
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Zheng B, Zhang S, Zeng T, Zheng W, Chen C. F-049OUTCOMES OF MODIFIED ENHANCED RECOVERY AFTER SURGERY PROTOCOLS FOR THE PATIENTS UNDERGOING MINIMALLY INVASIVE OESOPHAGECTOMY. Interact Cardiovasc Thorac Surg 2017. [DOI: 10.1093/icvts/ivx280.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Yuan DB, Hu YQ, Zeng T, Yin SW, Tang CH, Yang XQ. Development of stable Pickering emulsions/oil powders and Pickering HIPEs stabilized by gliadin/chitosan complex particles. Food Funct 2017; 8:2220-2230. [PMID: 28513748 DOI: 10.1039/c7fo00418d] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In this paper, we demonstrate the use of gliadin/chitosan complex particles (GCCPs) as particulate stabilizers of oil-in-water emulsions of natural oils and water. For this purpose, we fabricated GCCPs through a facile anti-solvent procedure and demonstrated their usage in the formation of Pickering emulsions and Pickering high internal phase emulsions (HIPEs). The GCCPs can be used to produce surfactant-free o/w Pickering emulsions and Pickering HIPEs; unfortunately these emulsions were labile to coalescence. NaCl addition and/or pH regulation, and the combination were used to modify the surface wettability of the complex particles to achieve stable emulsions. The microstructures, e.g., interfacial frameworks, GCCP partition between the continuous phase and interfacial region, and the state of the droplets, of Pickering emulsions were visualized by confocal laser scanning microscopy (CLSM), confirming that the inclusion of NaCl and slightly adjusting pH toward 4.0 and/or 5.0 benefited the adsorption and accumulation of colloid particles at the droplet surface to form an engineered interfacial structure, bridging droplets together through a percolating layer of colloidal particles at the oil/water interface. A schematic representation for the formation route of the emulsions is proposed to relate the physical performance and rheological property with the interfacial structures and aggregate behaviors in the Pickering system stabilized by the complex particles. Interestingly, direct freeze-drying of the emulsions transformed unstable Pickering emulsions into stable oil powders. This study opens a promising route based on Pickering HIPEs or oil powders to structure liquid oils into solid-like fats without artificial trans-fat, which outlines new directions for future fundamental research.
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Affiliation(s)
- D B Yuan
- Research and Development Center of Food Proteins, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, PR China.
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Chen L, Zeng T, Li GQ, Liu R, Tian Y, Li QH, Lu LZ. PCK1 expression is correlated with the plasma glucose level in the duck. Anim Genet 2017; 48:358-361. [PMID: 28198082 DOI: 10.1111/age.12540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2016] [Indexed: 11/30/2022]
Abstract
Phosphoenolpyruvate carboxykinase 1 (soluble) (PCK1) is a key gene in gluconeogenesis and glyceroneogenesis. Although its functions have been extensively studied in mice, bats and humans, little is known in ducks. Here, PCK1 functions were studied using a duck domestication model and a 48-h fasting experiment. We found PCK1 expression significantly decreased in two breeds of domestic ducks (Jinyun Pockmark ducks and Cherry Valley ducks) as compared with wild ducks (Anas platyrhynchos). Simultaneously, plasma levels of glucose, triglycerides and free fatty acid in domestic ducks were lower than in wild ducks. When compared with fed ducks, the plasma triglyceride level was observed to be significantly decreased, while the glucose and free fatty acid levels remained constant in 48-h fasting ducks. The expression analysis of gluconeogenic genes revealed that fructose-1,6-bisphosphatase genes (FBP1 and FBP2) and the glucose-6-phosphatase gene (G6PC2) were not changed, whereas PCK1 was significantly upregulated. In addition, the reported regulators of PCK1, including forkhead box A2 (FOXA2) gene and orphan nuclear receptor NR4A family genes (NR4A1, NR4A2 and NR4A3), exhibited similar expression levels between 48-h fasting ducks and fed ducks, suggesting that PCK1 is not regulated by these genes in the duck under fasting conditions. In conclusion, PCK1 expression may affect plasma levels of glucose, triglycerides and free fatty acid during the duck domestication process. This work demonstrates for the first time in duck that PCK1 is a key gene in maintaining plasma glucose homeostasis during fasting and that the upregulated expression of PCK1 may be responsible for constant plasma free fatty acid level by the glyceroneogenesis process.
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Affiliation(s)
- L Chen
- Institute of Animal Sciences and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - T Zeng
- Institute of Animal Sciences and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - G Q Li
- Institute of Animal Sciences and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - R Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Y Tian
- Institute of Animal Sciences and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Q H Li
- State Key Laboratory for Agro-Biotechnology, China Agricultural University, Beijing, 100193, China
| | - L Z Lu
- Institute of Animal Sciences and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
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Xie Y, Xu M, Wang C, Xiao J, Xiao Y, Jiang C, You X, Zhao F, Zeng T, Liu S, Kuang X, Wu Y. Diagnostic value of recombinant Tp0821 protein in serodiagnosis for syphilis. Lett Appl Microbiol 2016; 62:336-43. [PMID: 26853900 DOI: 10.1111/lam.12554] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 01/31/2016] [Accepted: 02/01/2016] [Indexed: 12/15/2022]
Abstract
UNLABELLED Syphilis is a multistage sexually transmitted disease that remains a serious public health concern worldwide. The coexistence of Treponema pallidum with other closely related members of spirochaeta, such as Leptospira spp. and Borrelia burgdorferi, has complicated the serodiagnosis due to cross-reactive antigens. In this study, recombinant Tp0821 protein was expressed in Escherichia coli and purified by metal affinity chromatography. Then enzyme-linked immunosorbent assays (ELISAs) based on Tp0821 for the detection of specific antibodies were established. The relative positive rates of the IgM ELISA and the IgG ELISA were found to be 91·0 and 98·3%, respectively, when screening 578 syphilis specimens. The specificities were 94·3 and 100%, respectively, when cross-checking with serum samples obtained from 30 patients with Lyme disease, five patients with leptospirosis, and 52 uninfected controls. In addition, relative positive rates and specificities of Tp0821 for human sera were all 100% in Western blotting. When compared to the syphilis diagnostic tests commonly used in clinical settings, we found that the results of Tp0821-based ELISAs correlated well with the results of the treponemal tests, specifically the T. pallidum particle agglutination (TP-PA) test and the chemiluminescent immunoassay (CIA). Thus, these findings identify Tp0821 as a novel serodiagnostic candidate for syphilis. SIGNIFICANCE AND IMPACT OF THE STUDY In this study, we expressed and purified the Treponema pallidum protein Tp0821 and developed Tp0821-based enzyme-linked immunosorbent assays (ELISAs) for the detection of specific antibodies. The serodiagnostic performance of the recombinant protein was then evaluated. When compared to the results of syphilis diagnostic tests commonly used in clinical settings, we found that the reactivities of syphilitic sera with the recombinant antigen correlated well with the results of the treponemal tests, specifically the T. pallidum particle agglutination (TP-PA) test and the chemiluminescent immunoassay (CIA). Thus, the recombinant protein shows promise as a new diagnostic antigen in the ELISAs.
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Affiliation(s)
- Y Xie
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - M Xu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - C Wang
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - J Xiao
- Clinical Laboratory Department, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - Y Xiao
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China.,Clinical Laboratory Department, The Second Affiliated Hospital of University of South China, Hengyang, Hunan, China
| | - C Jiang
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - X You
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - F Zhao
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - T Zeng
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - S Liu
- Clinical Laboratory Department, The First Affiliated Hospital of University of South China, Hengyang, Hunan, China
| | - X Kuang
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
| | - Y Wu
- Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, Hunan, China.,Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, China.,Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, Hunan, China
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Zeng T, Chen L, Du X, Lai SJ, Huang SP, Liu YL, Lu LZ. Association analysis between feed efficiency studies and expression of hypothalamic neuropeptide genes in laying ducks. Anim Genet 2016; 47:606-9. [DOI: 10.1111/age.12457] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2016] [Indexed: 11/30/2022]
Affiliation(s)
- T. Zeng
- Institute of Animal Husbandry and Veterinary Medicine; Zhejiang Academy of Agricultural sciences; Hangzhou 310021 China
- College of Animal Science and Technology; Nanjing Agricultural University; Nanjing 210095 China
| | - L. Chen
- Institute of Animal Husbandry and Veterinary Medicine; Zhejiang Academy of Agricultural sciences; Hangzhou 310021 China
| | - X. Du
- Institute of Animal Husbandry and Veterinary Medicine; Zhejiang Academy of Agricultural sciences; Hangzhou 310021 China
| | - S. J. Lai
- Institute of Animal Husbandry and Veterinary Medicine; Zhejiang Academy of Agricultural sciences; Hangzhou 310021 China
| | - S. P. Huang
- Institute of Animal Husbandry and Veterinary Medicine; Zhejiang Academy of Agricultural sciences; Hangzhou 310021 China
| | - Y. L. Liu
- Zhejiang Animal Husbandry Technique Extension Station; Hangzhou 310020 China
| | - L. Z. Lu
- Institute of Animal Husbandry and Veterinary Medicine; Zhejiang Academy of Agricultural sciences; Hangzhou 310021 China
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Huang ZQ, Wang GX, Jiang XL, Tian EP, Yao WL, Zeng T. Systematic tracking of altered modules identifies disrupted pathways in teratozoospermia. Genet Mol Res 2016; 15:gmr7514. [PMID: 27173237 DOI: 10.4238/gmr.15027514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The objective of this study was to identify disrupted pathways in teratozoospermia by systematically tracking dysregulated modules in reweighted protein-protein interaction (PPI) networks. We inferred and reweighted the PPI networks of normal and teratozoospermia groups based on Spearman correlation coefficients. Modules in the PPI networks were explored via a clique-merging algorithm and altered modules were identified based on maximum weight bipartite matching. Furthermore, pathway-enrichment analyses of genes in altered modules were performed by Database for Annotation, Visualization, and Integrated Discovery (DAVID) to illuminate the biological pathways in teratozoospermia. A total of 20,102 genes were screened from the expression profile. We explored 2406 and 2101 modules in normal and disease PPI networks, respectively. Moreover, we obtained 875 altered modules by comparing modules in normal and teratozoospermia PPI networks. At P < 0.01, the genes involved in 2855 interactions with score changes >1 were mainly enriched in 66 pathways and the genes in altered modules were enriched in 71 pathways. The activity genes (missed and added genes in the disrupted modules) were enriched in 41 common pathways. There were 36 mutual enriched pathways under the five different conditions. Moreover, the cell cycle pathway was disrupted in the first 10 pathways of each condition. This study provides a powerful biomarker discovery platform to better understand the progression of teratozoospermia by systematically tracking dysregulated modules. This method uncovered potential diagnostic and therapeutic targets of teratozoospermia. This information might lead to improved monitoring and treatment of teratozoospermia.
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Affiliation(s)
- Z Q Huang
- School of Medicine, Nanchang University, Nanchang, China.,Department of Urinary Surgery, Nanchang Reproductive Hospital, Nanchang, China
| | - G X Wang
- Department of Urinary Surgery, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - X L Jiang
- Department of Reproductive Medicine, Nanchang Reproductive Hospital, Nanchang, China
| | - E P Tian
- Department of Urinary Surgery, Nanchang Reproductive Hospital, Nanchang, China
| | - W L Yao
- Department of Urinary Surgery, Nanchang Reproductive Hospital, Nanchang, China
| | - T Zeng
- Department of Urinary Surgery, Jiangxi Province Peoples Hospital, Nanchang, China
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Liu J, Zeng T, Su G, Lin LY, Zhao Y, Yang WQ, Xie WX, Zhao ZG, Li GM. The dissemination mode of drug-resistant genes in Enterobacter cloacae. Indian J Med Microbiol 2015; 33 Suppl:87-92. [PMID: 25657163 DOI: 10.4103/0255-0857.150899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Enterobacter cloacae (E. cloacae) infection has the highest mortality rate among Enterobacter infections. This study aimed to determine the prevalence and the transmission route of the class I integron, qnr genes, and CTX-M ESBLs genes in clinical isolates and to analyse the association between the prevalence of MDR genes and the antibiotic resistance of E. cloacae. MATERIALS AND METHODS The antibiotic susceptibility was tested the agar dilution method. The class I integron, qnr genes, and CTX-M ESBLs genes were detected by polymerase chain reaction (PCR). The prevalence data were analysed with the Chi-square test. RESULTS In the 100 clinical isolates, the class I integron-positive rate was 65%, with 12% on chromosome, 15% on plasmids and 38% on both. The positive rate of qnr genes was 37% with plasmid location. The positive rates for qnrA, qnrB and qnrS were 6%, 23% and 8%, respectively. The CTX-M ESBLs-positive rate was 34%. For CTX-M-1 ESBLs, 15% were on chromosome, 6% on plasmids and 4% on both; for CTX-M-9 ESBLs, 1% was on chromosome and 7% on plasmid; for CTX-M-25 ESBLs, 3% were on chromosome and 1% on plasmid. CONCLUSION Antibiotic resistance genes may be horizontally and vertically disseminated among E. cloacae, which helps multidrug-resistant (MDR) strains of E. cloacae to be successful nosocomial agents.
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Affiliation(s)
| | | | | | | | | | | | | | - Z G Zhao
- Department of Microbiology and Immunology, Guangdong Medical College, Zhanjiang, China
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37
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Huang Z, Gao C, Chi X, Hu YW, Zheng L, Zeng T, Wang Q. IL-37 Expression is Upregulated in Patients with Tuberculosis and Induces Macrophages Towards an M2-like Phenotype. Scand J Immunol 2015; 82:370-9. [PMID: 26073153 DOI: 10.1111/sji.12326] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 06/05/2015] [Indexed: 02/01/2023]
Affiliation(s)
- Z. Huang
- Laboratory Medicine Center; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong China
- Department of Laboratory Medicine; Longgang Central District Hospital; Shenzhen Guangdong China
| | - C. Gao
- Department of Laboratory Medicine; People's Hospital of Linyi; Linyi Shandong China
| | - X. Chi
- School of Nursing; Guangdong Medical College; Dongguan Guangdong China
| | - Y. W. Hu
- Laboratory Medicine Center; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong China
| | - L. Zheng
- Laboratory Medicine Center; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong China
| | - T. Zeng
- Laboratory Medicine Center; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong China
| | - Q. Wang
- Laboratory Medicine Center; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong China
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Shen C, Chen L, Xu Y, Tian Z, Ng M, Zeng T, Lou Y, Zhu L, Jia X. WE-G-207-08: Imaging Dose Reduction and Scatter Removal in Cone Beam CT Via Random Undersampling: A Simulation Study. Med Phys 2015. [DOI: 10.1118/1.4926101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chen L, Shen C, Ng M, Zeng T, Lou Y, Jia X. MO-FG-204-06: A New Algorithm for Gold Nano-Particle Concentration Identification in Dual Energy CT. Med Phys 2015. [DOI: 10.1118/1.4925427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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40
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Zeng T, Pankratov D, Falk M, Leimkühler S, Shleev S, Wollenberger U. Miniature direct electron transfer based sulphite/oxygen enzymatic fuel cells. Biosens Bioelectron 2015; 66:39-42. [DOI: 10.1016/j.bios.2014.10.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 10/29/2014] [Accepted: 10/30/2014] [Indexed: 10/24/2022]
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41
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de Lange MF, Zeng T, Vlugt TJH, Gascon J, Kapteijn F. Manufacture of dense CAU-10-H coatings for application in adsorption driven heat pumps: optimization and characterization. CrystEngComm 2015. [DOI: 10.1039/c5ce00789e] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lu XY, Yang Y, Xu H, Zeng T, Zhang ZZ. Synergistic in vitro anti-tumor effect of letrozole and everolimus on human endometrial carcinoma Ishikawa cells. Eur Rev Med Pharmacol Sci 2014; 18:2264-2269. [PMID: 25219824] [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: 06/03/2023]
Abstract
OBJECTIVES To investigate the in vitro effect of the use of combination of letrozole and everolimus on the proliferation and apoptosis of human endometrial carcinoma Ishikawa cells. MATERIALS AND METHODS Different concentrations of letrozole alone or in combination with everolimus were added to Ishikawa cell cultures in vitro. Cell viability was assessed using MTT assay. Double staining with Annexin-V-FITC was used to detect the cell apoptosis by the flow cytometry (FCM). The expression of PTEN and 4E-BP1 proteins was analyzed with Western blotting. RESULTS Letrozole by itself inhibited cell viability and decreased the invasiveness of Ishikawa cells. The anti-tumor effect of letrozole in combination with everolimus was improved compared to letrozole alone. CONCLUSIONS Letrozole and everolimus synergistically inhibit the proliferation and induce cell apoptosis by inhibiting the cell signal pathway PI3K/Akt/mTOR and inducing cell apoptosis, thus showing a promising anti-tumor effectiveness.
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Affiliation(s)
- X-Y Lu
- Department of Gynecology and Obstetrics, Xuzhou Medical College Affiliated Hospital, Xuzhou, Jiangsu Province, China.
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43
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Han XY, Cheng D, Song FY, Zeng T, An LH, Xie KQ. Decelerated transport and its mechanism of 2,5-hexanedione on middle-molecular-weight neurofilament in rat dorsal root ganglia cells. Neuroscience 2014; 269:192-8. [PMID: 24699225 DOI: 10.1016/j.neuroscience.2014.03.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Revised: 03/17/2014] [Accepted: 03/21/2014] [Indexed: 02/02/2023]
Abstract
Chronic exposure to n-hexane induces peripheral-central axonopathy, mediated by its metabolite 2,5-hexanedione (2,5-HD), in occupational workers and experimental animals, but the underlying mechanism is still unclear. In the current study, we investigated the effects of 2,5-HD on middle-molecular-weight neurofilament (NF-M) axonal transport using live-cell imaging technique in cultured rat dorsal root ganglia (DRG) cells. PA-GFP-NF-M plasmid was transfected into DRG neurons and live-cell imaging was performed to observe the slow axonal transport of NF-M. The levels of cytoskeleton and motor proteins in DRG cells were detected by Western-blot and the concentration of ATP was determined using an ATP Assay Kit. The results showed that 2,5-HD administration resulted in a decrease of NF-M axonal transport and a reduction of three neurofilament subunits levels in DRG cells. Furthermore, 2,5-HD exposure significantly decreased ATP contents and the protein levels of kinesin heavy chain (KHC). These findings indicated that 2,5-HD reduced slow axonal transport, neurofilaments cargoes, motor proteins and ATP energy in rat DRG cells, which may contribute to 2,5-HD-induced neurotoxicity.
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Affiliation(s)
- X-Y Han
- Institute of Toxicology, Shandong University, Jinan 250012, China; College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - D Cheng
- Department of Toxicology, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - F-Y Song
- Institute of Toxicology, Shandong University, Jinan 250012, China
| | - T Zeng
- Institute of Toxicology, Shandong University, Jinan 250012, China
| | - L-H An
- Institute of Toxicology, Shandong University, Jinan 250012, China
| | - K-Q Xie
- Institute of Toxicology, Shandong University, Jinan 250012, China.
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Lu XY, Zeng T. Effects of polyunsaturated fatty acids on endometrial carcinoma Ishikawa cells. Eur Rev Med Pharmacol Sci 2014; 18:3311-3314. [PMID: 25487944] [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 This study aimed to explore the effects and mechanisms of polyunsaturated fatty acids in the endometrial carcinoma Ishikawa cells. MATERIALS AND METHODS The Ishikawa cells were treated with n-6 PUFAs, n-3 PUFAs, or the mixture of n-6/n-3 PUFAs at a ratio of 1:1/10:1. Cell proliferation was quantified by MTT assay, while expressions of Akt, mTOR and VEGF mRNAs by PCR. RESULTS Treatment with n-6 PUFAs and 10:1 n-6/n-3PUFAs markedly promoted cell proliferation and up-regulated expressions of Akt, mTOR and VEGF mRNAs. Further, n-3 PUFAs and 1:1 n-6/n-3 PUFAs markedly suppressed cell proliferation and down-regulated expressions of Akt, mTOR and VEGF mRNAs. CONCLUSIONS Different ratios of n-6/n-3PUFAs exhibit differential effects on the endometrial carcinoma Ishikawa cells through the PI3k/Akt/mTOR signaling pathway and differentially regulate VEGF expression.
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Affiliation(s)
- X-Y Lu
- Department of Obstetrics and Gynecology, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China.
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Li M, Zeng T, Liu R, Chen L. Detecting tissue-specific early warning signals for complex diseases based on dynamical network biomarkers: study of type 2 diabetes by cross-tissue analysis. Brief Bioinform 2013; 15:229-43. [DOI: 10.1093/bib/bbt027] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Chen G, Volz SG, Borca-Tasciuc T, Zeng T, Song D, Wang KL, Dresselhaus MS. Thermal Conductivity and Phonon Engineering in Low-Dimensional Structures. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-545-357] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractUnderstanding phonon heat conduction mechanisms in low-dimensional structures is of critical importance for low-dimensional thermoelectricity. In this paper, we discuss heat conduction mechanisms in two-dimensional (2D) and one-dimensional (1D) structures. Models based on both the phonon wave picture and particle picture are developed for heat conduction in 2D superlattices. The phonon wave model, based on the acoustic wave equations, includes the effects of phonon interference and tunneling, while the particle model, based on the Boltzmann transport equation, treats the internal as well interface scattering of phonons. For 1D systems, both the Boltzmann transport equation and molecular dynamics simulation approaches are employed. Comparing the modeling results with experimental data suggest that the interface scattering of phonons plays a crucial role in the thermal conductivity of low-dimensional structures. We also discuss the minimum thermal conductivity of low-dimensional structures based on a generalized thermal conductivity integral, and suggest that the minimum thermal conductivities of low-dimensional systems may differ from those of their corresponding bulk materials. The discussion leads to alternative ways to reduce thermal conductivity based on the propagating phonon modes.
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Slusher DL, Neff WD, Kim S, Huey LG, Wang Y, Zeng T, Tanner DJ, Blake DR, Beyersdorf A, Lefer BL, Crawford JH, Eisele FL, Mauldin RL, Kosciuch E, Buhr MP, Wallace HW, Davis DD. Atmospheric chemistry results from the ANTCI 2005 Antarctic plateau airborne study. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd012605] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Miele L, Lee G, Lin M, Turhan A, Zeng T, Tsuda A, Konerding M, Orgill D, Mentzer S. QS280. Mesoscopic Traffic Flow Theory Characterizes Microhemodynamics in Chemically-Induced Murine Colitis. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ma MX, Chen YM, He J, Zeng T, Wang JH. Effects of morphine and its withdrawal on Y-maze spatial recognition memory in mice. Neuroscience 2007; 147:1059-65. [PMID: 17601672 DOI: 10.1016/j.neuroscience.2007.05.020] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2007] [Revised: 05/15/2007] [Accepted: 05/18/2007] [Indexed: 11/27/2022]
Abstract
UNLABELLED Effects of morphine on acquisition and retrieval of memory have been proven in the avoidance paradigms. In present study, we used a two-trial recognition Y-maze to test the effects of acute morphine and morphine withdrawal on spatial recognition memory. The Y-maze is based on the innate tendency of rodents to explore novel environments and therefore avoid punishment and reward. RESULTS 1) Pre-training morphine 10 mg/kg impaired the recognition spatial memory of acquisition after a 1 h inter-trial interval (ITI), whereas morphine 2.5, 5 and 10 mg/kg showed impairment after 2 h ITI. 2) Pre-retention morphine 5, 10 mg/kg disrupted the retrieval of memory after 1 h ITI. 3) Morphine 5 and 10 mg/kg caused hyper-locomotor activity depending on the state. 4) Mice withdrawn from morphine 40 mg/kg but not 10 mg/kg for 3 days showed amnesia in Y-maze. Our data suggested that acute morphine impaired the acquisition and retrieval of spatial recognition memory and increased the locomotor activity in the Y-maze depending on the dose and state. Moreover, withdrawal from chronic morphine also impaired acquisition in the Y-maze depending on the dose and state.
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Affiliation(s)
- M X Ma
- Department of Psychology, Jilin University, Changchun, 130012, PR China
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Zeng T, Jamshidi Z, Mori H, Miyoshi E, Klobukowski M. Electron affinities of heavier phosphoryl and thiophosphoryl halides APX3 (A = O, S and X = Br, I). J Comput Chem 2007; 28:2027-33. [PMID: 17455368 DOI: 10.1002/jcc.20726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We carried out computational studies of OPX3 and SPX3 (X = Br and I) molecules and their corresponding anions using density functional theory, Møller-Plesset, and CCSD(T) methods with newly developed model core potentials (MCP). Reliabilities of the MCP were demonstrated by comparing experimental and calculated results. We computed the geometric structure, electron affinities, and electrostatic moments using systematic sequences of the dzp-, tzp-, and qzp-quality basis sets. Both C3v and Cs symmetries were assumed to ascertain that minima on the potential energy surface were found. Infrared and Raman frequencies were calculated and compared with available experimental data. Natural population analyses were performed and used to determine distribution of the extra electron in anions.
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Affiliation(s)
- T Zeng
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
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