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Mei J, Yan H, Tang Z, Piao Z, Yuan Y, Dou Y, Su H, Hu C, Meng M, Jia Z. Deep learning algorithm applied to plain CT images to identify superior mesenteric artery abnormalities. Eur J Radiol 2024; 173:111388. [PMID: 38412582 DOI: 10.1016/j.ejrad.2024.111388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/02/2024] [Accepted: 02/21/2024] [Indexed: 02/29/2024]
Abstract
OBJECTIVES Atypical presentations, lack of biomarkers, and low sensitivity of plain CT can delay the diagnosis of superior mesenteric artery (SMA) abnormalities, resulting in poor clinical outcomes. Our study aims to develop a deep learning (DL) model for detecting SMA abnormalities in plain CT and evaluate its performance in comparison with a clinical model and radiologist assessment. MATERIALS AND METHODS A total of 1048 patients comprised the internal (474 patients with SMA abnormalities, 474 controls) and external testing (50 patients with SMA abnormalities, 50 controls) cohorts. The internal cohort was divided into the training cohort (n = 776), validation cohort (n = 86), and internal testing cohort (n = 86). A total of 5 You Only Look Once version 8 (YOLOv8)-based DL submodels were developed, and the performance of the optimal submodel was compared with that of a clinical model and of experienced radiologists. RESULTS Of the submodels, YOLOv8x had the best performance. The area under the curve (AUC) of the YOLOv8x submodel was higher than that of the clinical model (internal test set: 0.990 vs 0.878, P =.002; external test set: 0.967 vs 0.912, P =.140) and that of all radiologists (P <.001). The YOLOv8x submodel, when compared with radiologist assessment, demonstrated higher sensitivity (internal test set: 100.0 % vs 70.7 %, P =.002; external test set: 96.0 % vs 68.8 %, P <.001) and specificity (internal test set: 90.7 % vs 66.0 %, P =.025; external test set: = 88.0 % vs 66.0 %, P <.001). CONCLUSION Using plain CT images, YOLOv8x was able to efficiently identify cases of SMA abnormalities. This could potentially improve early diagnosis accuracy and thus improve clinical outcomes.
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Affiliation(s)
- Junhao Mei
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Hui Yan
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zheyu Tang
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Zeyu Piao
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Yuan Yuan
- Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yang Dou
- Department of Radiology, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Haobo Su
- Department of Interventional Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Chunfeng Hu
- Department of Radiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Mingzhu Meng
- Department of Radiology, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China
| | - Zhongzhi Jia
- Department of Interventional and Vascular Surgery, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, China.
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Tian X, Gu L, Zeng F, Liu X, Zhou Y, Dou Y, Han J, Zhao Y, Zhang Y, Luo Q, Wang F. Strophanthidin Induces Apoptosis of Human Lung Adenocarcinoma Cells by Promoting TRAIL-DR5 Signaling. Molecules 2024; 29:877. [PMID: 38398629 PMCID: PMC10892344 DOI: 10.3390/molecules29040877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Strophanthidin (SPTD), one of the cardiac glycosides, is refined from traditional Chinese medicines such as Semen Lepidii and Antiaris toxicaria, and was initially used for the treatment of heart failure disease in clinic. Recently, SPTD has been shown to be a potential anticancer agent, but the underlying mechanism of action is poorly understood. Herein, we explored the molecular mechanism by which SPTD exerts anticancer effects in A549 human lung adenocarcinoma cells by means of mass spectrometry-based quantitative proteomics in combination with bioinformatics analysis. We revealed that SPTD promoted the expression of tumor necrosis factor (TNF)-related apoptosis-inducing ligand receptor 2 (TRAIL-R2, or DR5) in A549 cells to activate caspase 3/6/8, in particular caspase 3. Consequently, the activated caspases elevated the expression level of apoptotic chromatin condensation inducer in the nucleus (ACIN1) and prelamin-A/C (LMNA), ultimately inducing apoptosis via cooperation with the SPTD-induced overexpressed barrier-to-autointegration factor 1 (Banf1). Moreover, the SPTD-induced DEPs interacted with each other to downregulate the p38 MAPK/ERK signaling, contributing to the SPTD inhibition of the growth of A549 cells. Additionally, the downregulation of collagen COL1A5 by SPTD was another anticancer benefit of SPTD through the modulation of the cell microenvironment.
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Affiliation(s)
- Xiao Tian
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China;
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Liangzhen Gu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fangang Zeng
- School of Environment of Natural Resources, Remin University of China, Beijing 100875, China;
| | - Xingkai Liu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Yang Zhou
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Dou
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juanjuan Han
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Yao Zhao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanyan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Qun Luo
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fuyi Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China;
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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Dou Y, Li X, Tao J, Dong Y, Xu N, Wang S. Prediction of high-grade soft-tissue sarcoma using a combined intratumoural and peritumoural MRI-based radiomics nomogram. Clin Radiol 2023; 78:e1032-e1040. [PMID: 37748959 DOI: 10.1016/j.crad.2023.08.020] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 08/03/2023] [Accepted: 08/29/2023] [Indexed: 09/27/2023]
Abstract
AIM To develop an intratumoural and peritumoural magnetic resonance imaging (MRI)-based radiomics nomogram for predicting tumour grade to improve clinical treatment and long-term prognosis. MATERIALS AND METHODS MRI (3 T) features and T2-weighted imaging with fat-saturation (T2WI-FS)-based radiomics features of 57 patients with soft-tissue sarcoma (STS) were analysed retrospectively. Tumour size, ratio of width and length, relative depth to the peripheral fascia, peritumoural oedema, heterogeneity on T2WI, necrosis signal, enhancement model, and peritumoural enhancement were obtained. Independent risk factors were screened to construct an MRI feature nomogram. Radiomics features were obtained from intratumoural and peritumoural images on T2WI-FS. The optimal radiomics model was selected by the four-step dimensionality reduction method of minimum and maximum normalisation, optimal feature selection, selection based on support vector machine with L1-norm regularisation model, and iterative feature selection. MRI features and optimal radiomics features were used to construct a radiomics nomogram. The MRI feature nomogram model, the radiomics model, and the radiomics nomogram model were assessed by receiver operating characteristic (ROC) curves and calibration curves of the training and validation sets. RESULTS Heterogeneity on T2WI and peritumoural enhancement were independent risk factors for predicting high-grade STS. The areas under the curves of the training set and verification set of the three models were as follows: MRI feature nomogram, 0.86 and 0.83, respectively; intratumoural and peritumoural combined radiomics model, 0.99 and 0.86, respectively; and radiomics nomogram model, 0.98 and 0.96, respectively. CONCLUSION The radiomics nomogram model based on MRI features and combined intratumoural and peritumoural radiomic features was best able to predict high-grade STS.
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Affiliation(s)
- Y Dou
- Department of Ultrasound, The First Affiliated Hospital, Dalian Medical University, Dalian, China; Department of Radiology, The Second Hospital, Dalian Medical University, Dalian, China
| | - X Li
- Department of Radiology, Huashan Hospital Fudan University, Shanghai, China
| | - J Tao
- Department of Pathology, The Second Hospital, Dalian Medical University, Dalian, China
| | - Y Dong
- Department of Radiology, The Second Hospital, Dalian Medical University, Dalian, China
| | - N Xu
- Department of Radiology, The Second Hospital, Dalian Medical University, Dalian, China
| | - S Wang
- Department of Radiology, The Second Hospital, Dalian Medical University, Dalian, China.
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Chu G, Wang W, Dou Y, Sun K, Qin W, Wang Z, Si Y. Enhanced microbial degradation mediated by pyrogenic carbon toward p-nitrophenol: Role of carbon structures and iron minerals. Sci Total Environ 2023; 900:165797. [PMID: 37506896 DOI: 10.1016/j.scitotenv.2023.165797] [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: 05/16/2023] [Revised: 07/04/2023] [Accepted: 07/24/2023] [Indexed: 07/30/2023]
Abstract
Pyrogenic carbon (PC) including black carbons and engineered carbons can mediate the extracellular electron transfer to facilitate the biogeochemical reaction with organic pollutants. Yet, the role of carbon structures and iron minerals on PC-mediated microbial degradation is still lacking of understanding. Herein, we studied the electrochemical properties of PCs produced from varied feedstock with regards to the mediated degradation of p-nitrophenol (PNP) by Shewanella putrefaciens CN32 in anoxic system. Mediated degradation by PCs was enhanced by facilitating extracellular electron transfer through oxygenated group and graphitic structure. Graphitic crystallites improved the electron-accepting capacity (as suggested by ID/IG and EAC) and diminished the electrochemical impedance (as suggested by Rct), contributing to PNP degradation under the anoxic system. Furthermore, more interfacial adsorption was conducive to the mediated reduction by the graphitic structure on PCs of high-temperature. In the presence of iron minerals, both hematite and goethite significantly facilitated PC-mediated degradation, which could be ascribed to the enhancement of the electron-donating capacity of microorganism and the accumulation of the reductive-state PCs by the interaction with generated Fe(II). This work paves a feasible way to the technical design on the remediation of phenolic contaminants by PC-mediated microbial degradation in environment.
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Affiliation(s)
- Gang Chu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China; Yunnan Provincial Key Laboratory of Carbon Sequestration and Pollution Control in Soils, Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China.
| | - Wangmin Wang
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Yang Dou
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Kai Sun
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Wenxiu Qin
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Zhen Wang
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Youbin Si
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Faculty of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China.
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Chang CD, Dong C, Zhao SX, Yuan XW, Zhang XX, Zhao DD, Dou Y, Nan YM. [Real-world study on the efficacy and safety of first-line antiviral therapy for chronic hepatitis B]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:855-861. [PMID: 37723068 DOI: 10.3760/cma.j.cn501113-20230322-00124] [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] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Objective: To clarify the clinical efficacy of first-line oral antiviral drugs tenofovir alafenamide (TAF), tenofovir disoproxil fumarate (TDF), and entecavir (ETV) in the treatment of chronic hepatitis B (CHB) and their safety profiles with lipid, bone, and kidney metabolism. Methods: 458 CHB cases diagnosed and treated at the Department of Hepatology of Integrated Traditional Chinese and Western Medicine of the Third Hospital of Hebei Medical University from February 2010 to November 2022 were selected. TAF (175 cases), TDF (124 cases), and ETV (159 cases) were used as therapies. At 24 and 48 weeks, the virology, biochemical response, changes in liver stiffness measurement (LSM), and bone, kidney, and blood lipid metabolism safety profiles were compared and analyzed. Results: After 24 and 48 weeks of TAF, TDF, and ETV therapy, HBV DNA load decreased by 3.28, 2.69, and 3.14 log10 IU/ml and 3.28, 2.83, and 3.65 log10 IU/ml, respectively, compared with the baseline, and the differences between the three groups were statistically significant, P < 0.001. The complete virological response rates were 73.95%, 66.09%, 67.19%, and 82.22%, 72.48%, and 70.49%, respectively. The incidence rates of low-level viremia were 16.67%, 21.70%, and 23.08%, while poor response rates were 1.11%, 3.67%, and 4.10%. ALT normalization rates were 64.00%, 63.89%, 67.96%, and 85.33%, 80.56%, 78.64%, respectively, and there was no statistically significant difference among the groups. LSM was significantly improved in patients treated with TAF for 48 weeks, P = 0.022. Serum phosphorus level gradually decreased with the prolongation of TDF treatment. The TAF treatment group had a good safety profile for kidney, bone, and phosphorus metabolism, with no dyslipidemia or related occurrences of risk. Conclusion: There are some differences in the therapeutic effects of first-line anti-HBV drugs. TAF has the lowest incidence of low-level viremia after 48 weeks of treatment and has a good safety profile in kidney, bone, and blood lipid metabolism.
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Affiliation(s)
- C D Chang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - C Dong
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - S X Zhao
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - X W Yuan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - X X Zhang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - D D Zhao
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - Y Dou
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
| | - Y M Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Provincial Key Laboratory of study on Mechanism of Hepatic Fibrosis in Chronic Liver Disease, Shijiazhuang 050051, China
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Dong C, Chang CD, Zhao DD, Zhang XX, Guo PL, Dou Y, Zhao SX, Nan YM. [Clinical value of plasma scaffold protein SEC16A in evaluating hepatitis B-related liver cirrhosis and hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:621-626. [PMID: 37400387 DOI: 10.3760/cma.j.cn501113-20230220-00067] [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: 07/05/2023]
Abstract
Objective: To investigate the clinical value of plasma scaffold protein SEC16A level and related models in the diagnosis of hepatitis B virus-related liver cirrhosis (HBV-LC) and hepatocellular carcinoma (HBV-HCC). Methods: Patients with HBV-LC and HBV-HCC and a healthy control group diagnosed by clinical, laboratory examination, imaging, and liver histopathology at the Third Hospital of Hebei Medical University between June 2017 and October 2021 were selected. Plasma SEC16A level was detected using an enzyme-linked immunosorbent assay (ELISA). Serum alpha-fetoprotein (AFP) was detected using an electrochemiluminescence instrument. SPSS 26.0 and MedCalc 15.0 statistical software were used to analyze the relationship between plasma SEC16A levels and the occurrence and development of liver cirrhosis and liver cancer. A sequential logistic regression model was used to analyze relevant factors. SEC16A was established through a joint diagnostic model. Receiver operating characteristic curve was used to evaluate the clinical efficacy of the model for liver cirrhosis and hepatocellular carcinoma diagnosis. Pearson correlation analysis was used to identify the influencing factors of novel diagnostic biomarkers. Results: A total of 60 cases of healthy controls, 60 cases of HBV-LC, and 52 cases of HBV-HCC were included. The average levels of plasma SEC16A were (7.41 ± 1.66) ng/ml, (10.26 ± 1.86) ng/ml, (12.79 ± 1.49) ng /ml, respectively, with P < 0.001. The sensitivity and specificity of SEC16A in the diagnosis of liver cirrhosis and hepatocellular carcinoma were 69.44% and 71.05%, and 89.36% and 88.89%, respectively. SEC16A, age, and AFP were independent risk factors for the occurrence of HBV-LC and HCC. SAA diagnostic cut-off values, sensitivity, and specificity were 26.21 and 31.46, 77.78% and 81.58%, and 87.23% and 97.22%, respectively. The sensitivity and specificity for HBV-HCC early diagnosis were 80.95% and 97.22%, respectively. Pearson correlation analysis showed that AFP level was positively correlated with alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBil), and γ-glutamyltransferase (GGT) with P < 0.01, while the serum SEC16A level was only slightly positively correlated with ALT and AST in the liver cirrhosis group (r = 0.268 and 0.260, respectively, P < 0.05). Conclusion: Plasma SEC16A can be used as a diagnostic marker for hepatitis B-related liver cirrhosis and hepatocellular carcinoma. SEC16A, combined with age and the AFP diagnostic model with SAA, can significantly improve the rate of HBV-LC and HBV-HCC early diagnosis. Additionally, its application is helpful for the diagnosis and differential diagnosis of the progression of HBV-related diseases.
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Affiliation(s)
- C Dong
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - C D Chang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - D D Zhao
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - X X Zhang
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - P L Guo
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - Y Dou
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - S X Zhao
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - Y M Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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Sun X, Yin ZQ, Zheng JX, Dou Y, Zhang Q, Fu Q, Zhang WL, Yi L. [A comparative study of the curative effects between butterfly-shaped flap and propeller flap based on the dorsal branch of digital artery in repairing the wound in volar aspect of finger]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:552-557. [PMID: 37805771 DOI: 10.3760/cma.j.cn501225-20220714-00294] [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: 10/09/2023]
Abstract
Objective: To compare the curative effects of butterfly-shaped flap based on the dorsal branch of digital artery (hereinafter referred to as butterfly-shaped flap) and propeller flap based on the dorsal branch of digital artery (hereinafter referred to as propeller flap) in repairing the wound in volar aspect of finger. Methods: A retrospective cohort study was conducted. From August 2018 to April 2022, 16 patients with finger palmar wounds admitted to Ruijin Hospital of Shanghai Jiao Tong University School of Medicine and 7 patients with finger palmar wounds admitted to General Hospital of PLA Central Theater Command met the inclusion criteria, including 14 males and 9 females, aged 25 to 64 years. After debridement or resection of skin benign tumor, the wounds ranged from 0.5 cm×0.5 cm to 1.5 cm×1.5 cm. According to the different rotation axes of flap pedicle during wound repair, the patients were divided into butterfly-shaped flap group (8 cases) and propeller flap group (15 cases), and their wounds were repaired by butterfly-shaped flap (with area of 0.5 cm×0.5 cm-1.5 cm×1.3 cm) or propeller flap (with area of 0.7 cm×0.5 cm-1.5 cm×1.5 cm) , respectively. In propeller flap group, wounds in the donor sites were repaired by full-thickness skin grafts taken from the palms of wrists or the groin. The surgical time, postoperative complications, flap survival, and wound healing time of patients in the two groups were recorded. Data were statistically analyzed with independent sample t test, Mann Whitney U test, or Fisher's exact probability test. Results: The surgical time and postoperative wound healing time of patients in butterfly-shaped flap group ((43±9) min and (13.1±0.8) d, respectively) were both significantly shorter than those in propeller flap group ((87±16) min and (16.7±4.6) d, respectively, with t values of -7.03 and -2.86, respectively, P<0.05). The postoperative flap survival and complications of patients between the two groups were both similar (P>0.05). Conclusions: For repairing the wound in volar aspect of finger, the butterfly-shaped flap has more advantages in comparison with the traditional propeller flap. The butterfly-shaped flap has a short surgical time and fast postoperative recovery, which is worthy of clinical promotion.
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Affiliation(s)
- X Sun
- Department of Burn and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z Q Yin
- Department of Burn and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J X Zheng
- Department of Burn and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Dou
- Department of Burn and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Q Zhang
- Department of Burn and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Q Fu
- Department of Orthopedics, General Hospital of PLA Central Theater Command, Wuhan 430072, China
| | - W L Zhang
- Department of Hand Surgery, the People's Hospital of Tianjin, Tianjin 300121, China
| | - L Yi
- Department of Burn and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Zhu L, Liu H, Dou Y, Luo Q, Gu L, Liu X, Zhou Q, Han J, Wang F. A Photoactivated Ru (II) Polypyridine Complex Induced Oncotic Necrosis of A549 Cells by Activating Oxidative Phosphorylation and Inhibiting DNA Synthesis as Revealed by Quantitative Proteomics. Int J Mol Sci 2023; 24:ijms24097756. [PMID: 37175463 PMCID: PMC10178167 DOI: 10.3390/ijms24097756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
The ruthenium polypyridine complex [Ru(dppa)2(pytp)] (PF6)2 (termed as ZQX-1), where dppa = 4,7-diphenyl-1,10-phenanthroline and pytp = 4'-pyrene-2,2':6',2''-terpyridine, has been shown a high and selective cytotoxicity to hypoxic and cisplatin-resistant cancer cells either under irradiation with blue light or upon two-photon excitation. The IC50 values of ZQX-1 towards A549 cancer cells and HEK293 health cells are 0.16 ± 0.09 µM and >100 µM under irradiation at 420 nm, respectively. However, the mechanism of action of ZQX-1 remains unclear. In this work, using the quantitative proteomics method we identified 84 differentially expressed proteins (DEPs) with |fold-change| ≥ 1.2 in A549 cancer cells exposed to ZQX-1 under irradiation at 420 nm. Bioinformatics analysis of the DEPs revealed that photoactivated ZQX-1 generated reactive oxygen species (ROS) to activate oxidative phosphorylation signaling to overproduce ATP; it also released ROS and pyrene derivative to damage DNA and arrest A549 cells at S-phase, which synergistically led to oncotic necrosis and apoptosis of A549 cells to deplete excess ATP, evidenced by the elevated level of PRAP1 and cleaved capase-3. Moreover, the DNA damage inhibited the expression of DNA repair-related proteins, such as RBX1 and GPS1, enhancing photocytotoxicity of ZQX-1, which was reflected in the inhibition of integrin signaling and disruption of ribosome assembly. Importantly, the photoactivated ZQX-1 was shown to activate hypoxia-inducible factor 1A (HIF1A) survival signaling, implying that combining use of ZQX-1 with HIF1A signaling inhibitors may further promote the photocytotoxicity of the prodrug.
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Affiliation(s)
- Li Zhu
- College of Applied Science and Technology, Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, Beijing 100101, China
| | - Hui Liu
- College of Applied Science and Technology, Beijing Key Laboratory of Bioactive Substances and Functional Foods, Beijing Union University, Beijing 100101, China
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yang Dou
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qun Luo
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liangzhen Gu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xingkai Liu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Qianxiong Zhou
- Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Juanjuan Han
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Fuyi Wang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Centre for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
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9
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Dou Y, Xu K, Deng YQ, Jia Z, Lan J, Xu X, Zhang G, Cao T, Liu P, Wang X, Wang X, Xu L, Du P, Qin CF, Liu H, Li Y, Wu G, Wang K, Lu B. Development of neutralizing antibodies against SARS-CoV-2, using a high-throughput single B-cell cloning method. Antib Ther 2023; 6:76-86. [PMID: 37077472 PMCID: PMC10108556 DOI: 10.1093/abt/tbad002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
Abstract
Background
Rapid and efficient strategies are needed to discover neutralizing antibodies (nAbs) from B cells derived from virus-infected patients.
Methods
Here, we report a high-throughput single B-cell cloning method for high-throughput isolation of nAbs targeting diverse epitopes on the SARS-CoV-2-RBD (receptor binding domain) from convalescent COVID-19 patients. This method is simple, fast, and highly efficient in generating SARS-CoV-2-neutralizing antibodies from COVID-19 patients’ B cells.
Results
Using this method, we have developed multiple nAbs against distinct SARS-CoV-2-RBD epitopes. CryoEM and crystallography revealed precisely how they bind RBD. In live virus assay, these nAbs are effective in blocking viral entry to the host cells.
Conclusion
This simple and efficient method may be useful in developing human therapeutic antibodies for other diseases and next pandemic.
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Affiliation(s)
- Yang Dou
- School of Pharmaceutical Sciences , IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China, 100084
| | - Ke Xu
- NHC Key Laboratory of Biosafety , National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China, 102206
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China, 100071
| | - Zijing Jia
- National Laboratory of Macromolecules , Institute of Biophysics, Chinese Academy of Sciences, Beijing, China, 100101
| | - Jun Lan
- Beijing Advanced Innovation Center for Structural Biology , School of Life Sciences, Tsinghua University, Beijing, China, 100084
| | - Xiaoyu Xu
- Vazyme Biotech Co. , Ltd., Nanjing, China
| | - Guorui Zhang
- Department of Respiratory and Critical Care Medicine , The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, 450052
| | - Tianshu Cao
- State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China, 100071
| | - Pan Liu
- National Laboratory of Macromolecules , Institute of Biophysics, Chinese Academy of Sciences, Beijing, China, 100101
| | - Xiangxi Wang
- National Laboratory of Macromolecules , Institute of Biophysics, Chinese Academy of Sciences, Beijing, China, 100101
| | - Xinquan Wang
- Beijing Advanced Innovation Center for Structural Biology , School of Life Sciences, Tsinghua University, Beijing, China, 100084
| | - Lingjie Xu
- Vazyme Biotech Co. , Ltd., Nanjing, China
| | - Pan Du
- Vazyme Biotech Co. , Ltd., Nanjing, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity , Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China, 100071
| | - Hong Liu
- Department of Respiratory and Critical Care Medicine , The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China, 450052
| | - Yafeng Li
- Shanxi Provincial Key Laboratory of Kidney Disease , The Fifth Hospital of Shanxi Medical University, Taiyuan, China, 030012
| | - Guizhen Wu
- NHC Key Laboratory of Biosafety , National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China, 102206
| | - Kang Wang
- National Laboratory of Macromolecules , Institute of Biophysics, Chinese Academy of Sciences, Beijing, China, 100101
| | - Bai Lu
- School of Pharmaceutical Sciences , IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China, 100084
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10
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Yang YC, Dou Y, Wang ZW, Yin RH, Pan CJ, Duan SF, Tang XQ. Prediction of myocardial ischemia in coronary heart disease patients using a CCTA-Based radiomic nomogram. Front Cardiovasc Med 2023; 10:1024773. [PMID: 36742075 PMCID: PMC9893015 DOI: 10.3389/fcvm.2023.1024773] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 01/03/2023] [Indexed: 01/20/2023] Open
Abstract
Objective The present study aimed to predict myocardial ischemia in coronary heart disease (CHD) patients based on the radiologic features of coronary computed tomography angiography (CCTA) combined with clinical factors. Methods The imaging and clinical data of 110 patients who underwent CCTA scan before DSA or FFR examination in Changzhou Second People's Hospital, Nanjing Medical University (90 patients), and The First Affiliated Hospital of Soochow University (20 patients) from March 2018 to January 2022 were retrospectively analyzed. According to the digital subtraction angiography (DSA) and fractional flow reserve (FFR) results, all patients were assigned to myocardial ischemia (n = 58) and normal myocardial blood supply (n = 52) groups. All patients were further categorized into training (n = 64) and internal validation (n = 26) sets at a ratio of 7:3, and the patients from second site were used as external validation. Clinical indicators of patients were collected, the left ventricular myocardium were segmented from CCTA images using CQK software, and the radiomics features were extracted using pyradiomics software. Independent prediction models and combined prediction models were established. The predictive performance of the model was assessed by calibration curve analysis, receiver operating characteristic (ROC) curve and decision curve analysis. Results The combined model consisted of one important clinical factor and eight selected radiomic features. The area under the ROC curve (AUC) of radiomic model was 0.826 in training set, and 0.744 in the internal validation set. For the combined model, the AUCs were 0.873, 0.810, 0.800 in the training, internal validation, and external validation sets, respectively. The calibration curves demonstrated that the probability of myocardial ischemia predicted by the combined model was in good agreement with the observed values in both training and validation sets. The decision curve was within the threshold range of 0.1-1, and the clinical value of nomogram was higher than that of clinical model. Conclusion The radiomic characteristics of CCTA combined with clinical factors have a good clinical value in predicting myocardial ischemia in CHD patients.
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Affiliation(s)
- You-Chang Yang
- Department of Radiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Shandong, China
| | - Yang Dou
- Graduate School of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Zhi-Wei Wang
- Graduate School of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Ruo-Han Yin
- Department of Radiology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Chang-Jie Pan
- Department of Radiology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China
| | - Shao-Feng Duan
- GE Healthcare, Precision Health Institution, Shanghai, China
| | - Xiao-Qiang Tang
- Department of Radiology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, China,*Correspondence: Xiao-Qiang Tang,
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11
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Dou Y, Xin J, Zhou P, Tang J, Xie H, Fan W, Zhang Z, Wu D. Bidirectional association between polycystic ovary syndrome and periodontal diseases. Front Endocrinol (Lausanne) 2023; 14:1008675. [PMID: 36755917 PMCID: PMC9899846 DOI: 10.3389/fendo.2023.1008675] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) and periodontal disease (PDD) share common risk factors. The bidirectional interaction between PCOS and PDD has been reported, but until now, the underlying molecular mechanisms remain unclear. Endocrine disorders including hyperandrogenism (HA) and insulin resistance (IR) in PCOS disturb the oral microbial composition and increase the abundance of periodontal pathogens. Additionally, PCOS has a detrimental effect on the periodontal supportive tissues, including gingiva, periodontal ligament, and alveolar bone. Systemic low-grade inflammation status, especially obesity, persistent immune imbalance, and oxidative stress induced by PCOS exacerbate the progression of PDD. Simultaneously, PDD might increase the risk of PCOS through disturbing the gut microbiota composition and inducing low-grade inflammation and oxidative stress. In addition, genetic or epigenetic predisposition and lower socioeconomic status are the common risk factors for both diseases. In this review, we will present the latest evidence of the bidirectional association between PCOS and PDD from epidemiological, mechanistic, and interventional studies. A deep understanding on their bidirectional association will be beneficial to provide novel strategies for the treatment of PCOS and PDD.
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Affiliation(s)
- Yang Dou
- Department of Stomatology, Shenzhen Baoan Women’s and Children’s Hospital, Jinan University, Shenzhen, Guangdong, China
| | - Jinglei Xin
- Department of Stomatology, Guangdong Women and Children hospital, Guangzhou, Guangdong, China
| | - Peng Zhou
- Department of Stomatology, Guangdong Women and Children hospital, Guangzhou, Guangdong, China
| | - Jianming Tang
- Department of Stomatology, Shenzhen People’s Hospital, Shenzhen, Guangdong, China
| | - Hongliang Xie
- Department of Stomatology, Shenzhen People’s Hospital, Shenzhen, Guangdong, China
| | - Wanting Fan
- Department of Stomatology, Shenzhen People’s Hospital, Shenzhen, Guangdong, China
| | - Zheng Zhang
- Department of Stomatology, Shenzhen People’s Hospital, Shenzhen, Guangdong, China
| | - Donglei Wu
- Department of Stomatology, Shenzhen People’s Hospital, Shenzhen, Guangdong, China
- *Correspondence: Donglei Wu,
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12
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Wang F, Li L, Dou Y, Shi R, Duan X, Liu H, Zhang J, Liu D, Wu J, He Y, Lan J, Lu B, Feng H, Yan J. Etesevimab in combination with JS026 neutralizing SARS-CoV-2 and its variants. Emerg Microbes Infect 2022; 11:548-551. [PMID: 35060840 PMCID: PMC8843163 DOI: 10.1080/22221751.2022.2032374] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The neutralizing antibody is a potential therapeutic for the ongoing COVID-19 pandemic. As an antiviral agent, numerous mAbs recognize the epitopes that overlap with ACE2-binding sites in the SARS-CoV-2-RBD. Some studies have shown that residual changes on the spike protein can significantly decrease the efficiency of neutralizing antibodies. To address this issue, a therapeutic cocktail could be an effective countermeasure. In the present study, we isolated a fully human neutralizing antibody, JS026, from a convalescent patient. The comparative analysis revealed that JS026 binding to SARS-CoV-2-RBD mainly located between epitopes for class 2 and class 3 mAbs as opposed to that of class 1 (etesevimab) antibodies. A cocktail of etesevimab and JS026 increased neutralizing efficacy against both wild-type SARS-CoV-2 and the recent emergence of Alpha, Beta, Gamma, and Delta variants. JS026 and the cocktail reduced virus titers in the infected lungs of hACE2 transgenic mice and relieved pathological changes. These findings would benefit antibody-based therapeutic countermeasures in the treatment of COVID-19.
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Affiliation(s)
- Fengze Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- These authors contributed equally
| | - Li Li
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
- These authors contributed equally
| | - Yang Dou
- School of Pharmaceutical Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, 100084, China
- These authors contributed equally
| | - Rui Shi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Xiaomin Duan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongchuan Liu
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
| | - Jing Zhang
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
| | - DanDan Liu
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
| | - Jing Wu
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
| | - Yang He
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
| | - Jun Lan
- Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Bai Lu
- School of Pharmaceutical Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, 100084, China
| | - Hui Feng
- Shanghai Junshi Biosciences Co. Ltd, Shanghai 200126, China
| | - Jinghua Yan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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13
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Zeng Q, Fang Q, Zhou X, Yang H, Dou Y, Zhang W, Gong P, Rong X. Cofilin 2 Acts as an Inflammatory Linker Between Chronic Periodontitis and Alzheimer's Disease in Amyloid Precursor Protein/Presenilin 1 Mice. Front Mol Neurosci 2021; 14:728184. [PMID: 34658785 PMCID: PMC8514664 DOI: 10.3389/fnmol.2021.728184] [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: 06/21/2021] [Accepted: 08/30/2021] [Indexed: 11/25/2022] Open
Abstract
Increasing evidence has shown a correlation between chronic periodontitis (CP) and Alzheimer’s disease (AD). Nevertheless, there is still a lack of direct evidence, and especially key molecules to connect the two diseases. This study aims to investigate potential protein links between CP and AD within the inflammatory aspect. The hippocampus of CP model mice and controls were collected, and changes in protein expression were evaluated using two-dimensional differential in-gel electrophoresis (2D-DIGE) analysis combined with liquid chromatography tandem mass spectrometry. A total of 15 differentially expressed proteins were identified in CP model mice, as compared with the controls. Among them, S100-A9, transthyretin, Cofilin 2, peroxiredoxin 2, and lipocalin-2 were validated by Western blot according to their dual function both in inflammation and AD. Based on 2D-DIGE analysis, CP animal model had higher levels of S100-A9, Cofilin 2, peroxiredoxin 2, and lipocalin-2 compared to controls. The level of Cofilin 2, one of the well-established proteins in the pathology of AD, was strongly correlated with the time course of CP pathology, indicating a specific molecular correlation between CP and AD. Moreover, the in vivo results showed the level of Cofilin 2 increased significantly along with a prominent increase of the phosphorylation of protein phosphatase 2 (PP2A) and tau protein in the cell lysates of Porphyromonas gingivalis (P.g-LPS)-treated SK-N-SH APPwt cells. Cofilin 2 inhibition resulted in a sharp decrease in PP2A dependent of tau phosphorylation. Furthermore, tumor growth factor (TGF)-β1 was one of the most important inflammatory cytokines for the Pg-LPS-induced Cofilin 2 upregulation in SK-N-SH APPwt cells. These results showed inflammation served as the bond between CP and AD, whereas inflammatory related proteins could be the key linkers between the two diseases. Determining the association between CP and AD at the molecular mechanism will not only hold the direct evidence of the association between the two diseases but also provide a new way of preventing and treating AD: the effective prevention and treatment of CP could serve as a useful method to alleviate the development of AD.
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Affiliation(s)
- Qing Zeng
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Qin Fang
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Xincai Zhou
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Hongfa Yang
- Department of Cardiology, The Second Affiliated Hospital of University of South China, Hengyang, China
| | - Yang Dou
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Wenhao Zhang
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Pu Gong
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
| | - Xianfang Rong
- Department of Stomatology, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Shenzhen, China
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14
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Yi L, Dou Y, Zhou ZD, Li XC, Zheng JX, Zhang Q, Huan JN, Liu Y. [Observation on the clinical effect of self-designed modified rhomboid skin flap in facial wound repair]. Zhonghua Shao Shang Za Zhi 2021; 37:788-792. [PMID: 34420279 DOI: 10.3760/cma.j.cn501120-20200504-00250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical effect of self-designed modified rhomboid flap in repairing rhomboid, round, and teardrop-shaped wounds on the face. Methods: A retrospective observational study was conducted. From August 2018 to April 2020, 30 patients with facial lesions admitted into Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine and the People's Hospital of Jianchuan County in Yunnan province met the inclusion criteria, including 16 males and 14 females, aged 23 to 88 years. The wound area ranged from 1.0 cm×1.0 cm to 7.0 cm×5.0 cm, with 10 cases of rhomboid wounds, 12 cases of round wounds, and 8 cases of teardrop-shaped wounds. The self-designed modified rhomboid flaps were applied to repair the wounds and after that, the patients were followed up for 1 to 18 months to record the survival of flaps, wound tension, scar formation and complications after surgery. Results: No necrosis or blackening was observed at the tip of the flaps after surgery. All the flaps survived and the wounds healed well with little tension, minimal scars, and no complications. Conclusions: The self-designed modified rhomboid flap is especially suitable for facial wounds with multiple important organs, multiple anatomical subunits, and areas with large changes in soft tissue tension, which can reduce not only the rotation of the flap, but also unnecessary excision of normal skin and soft tissue.
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Affiliation(s)
- L Yi
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Dou
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Z D Zhou
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - X C Li
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J X Zheng
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Q Zhang
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J N Huan
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Liu
- Department of Burn, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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15
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Liu J, Chen Q, Yang S, Li Y, Dou Y, Deng YQ, Bi J, Tan Y, Wang H, Gong W, Xu X, Li Z, Lang G, Qin CF, Lu B, Jiang W. hACE2 Fc-neutralization antibody cocktail provides synergistic protection against SARS-CoV-2 and its spike RBD variants. Cell Discov 2021; 7:54. [PMID: 34285198 PMCID: PMC8290864 DOI: 10.1038/s41421-021-00293-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 06/11/2021] [Indexed: 01/07/2023] Open
Affiliation(s)
- Junli Liu
- Shanghai Henlius Biotech, Inc., Shanghai, China
| | - Qi Chen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Shumin Yang
- Shanghai Henlius Biotech, Inc., Shanghai, China
| | - Ying Li
- Shanghai Henlius Biotech, Inc., Shanghai, China
| | - Yang Dou
- School of Pharmaceutical Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Jinpeng Bi
- Vazyme Biotech Co., Ltd., Nanjing, China
| | - Yongcong Tan
- Sanyou Biopharmaceuticals Co., Ltd., Shanghai, China
| | | | - Wei Gong
- Shanghai Henlius Biotech, Inc., Shanghai, China
| | - Xiaoyu Xu
- Vazyme Biotech Co., Ltd., Nanjing, China
| | - Zhenhu Li
- Shanghai Henlius Biotech, Inc., Shanghai, China
| | - Guojun Lang
- Sanyou Biopharmaceuticals Co., Ltd., Shanghai, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Bai Lu
- School of Pharmaceutical Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China. .,Beijing Tiantan Hospital, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China.
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16
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Cao Y, Yisimayi A, Bai Y, Huang W, Li X, Zhang Z, Yuan T, An R, Wang J, Xiao T, Du S, Ma W, Song L, Li Y, Li X, Song W, Wu J, Liu S, Li X, Zhang Y, Su B, Guo X, Wei Y, Gao C, Zhang N, Zhang Y, Dou Y, Xu X, Shi R, Lu B, Jin R, Ma Y, Qin C, Wang Y, Feng Y, Xiao J, Xie XS. Humoral immune response to circulating SARS-CoV-2 variants elicited by inactivated and RBD-subunit vaccines. Cell Res 2021; 31:732-741. [PMID: 34021265 PMCID: PMC8138844 DOI: 10.1038/s41422-021-00514-9] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/21/2021] [Indexed: 11/16/2022] Open
Abstract
SARS-CoV-2 variants could induce immune escape by mutations on the receptor-binding domain (RBD) and N-terminal domain (NTD). Here we report the humoral immune response to circulating SARS-CoV-2 variants, such as 501Y.V2 (B.1.351), of the plasma and neutralizing antibodies (NAbs) elicited by CoronaVac (inactivated vaccine), ZF2001 (RBD-subunit vaccine) and natural infection. Among 86 potent NAbs identified by high-throughput single-cell VDJ sequencing of peripheral blood mononuclear cells from vaccinees and convalescents, near half anti-RBD NAbs showed major neutralization reductions against the K417N/E484K/N501Y mutation combination, with E484K being the dominant cause. VH3-53/VH3-66 recurrent antibodies respond differently to RBD variants, and K417N compromises the majority of neutralizing activity through reduced polar contacts with complementarity determining regions. In contrast, the 242-244 deletion (242-244Δ) would abolish most neutralization activity of anti-NTD NAbs by interrupting the conformation of NTD antigenic supersite, indicating a much less diversity of anti-NTD NAbs than anti-RBD NAbs. Plasma of convalescents and CoronaVac vaccinees displayed comparable neutralization reductions against pseudo- and authentic 501Y.V2 variants, mainly caused by E484K/N501Y and 242-244Δ, with the effects being additive. Importantly, RBD-subunit vaccinees exhibit markedly higher tolerance to 501Y.V2 than convalescents, since the elicited anti-RBD NAbs display a high diversity and are unaffected by NTD mutations. Moreover, an extended gap between the third and second doses of ZF2001 leads to better neutralizing activity and tolerance to 501Y.V2 than the standard three-dose administration. Together, these results suggest that the deployment of RBD-vaccines, through a third-dose boost, may be ideal for combating SARS-CoV-2 variants when necessary, especially for those carrying mutations that disrupt the NTD supersite.
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MESH Headings
- Animals
- Antibodies, Neutralizing/blood
- Antibodies, Neutralizing/immunology
- COVID-19/blood
- COVID-19/immunology
- COVID-19/prevention & control
- COVID-19 Vaccines/immunology
- COVID-19 Vaccines/pharmacology
- Cell Line
- HEK293 Cells
- Humans
- Immunity, Humoral
- Models, Molecular
- Mutation
- SARS-CoV-2/genetics
- SARS-CoV-2/immunology
- Spike Glycoprotein, Coronavirus/genetics
- Spike Glycoprotein, Coronavirus/immunology
- Vaccines, Inactivated/immunology
- Vaccines, Inactivated/pharmacology
- Vaccines, Subunit/immunology
- Vaccines, Subunit/pharmacology
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Affiliation(s)
- Yunlong Cao
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China.
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China.
| | - Ayijiang Yisimayi
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Yali Bai
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Joint Graduate Program of Peking-Tsinghua-NIBS, School of Life Sciences, Tsinghua University, Beijing, China
| | - Weijin Huang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Xiaofeng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
| | - Zhiying Zhang
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Tianjiao Yuan
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Ran An
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
| | - Jing Wang
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Tianhe Xiao
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Shuo Du
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Wenping Ma
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Liyang Song
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Yongzheng Li
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
| | - Xiang Li
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Weiliang Song
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Jiajing Wu
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Shuo Liu
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China
| | - Xuemei Li
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yonghong Zhang
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Bin Su
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Xianghua Guo
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Yangyang Wei
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Chuanping Gao
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China
- School of Life Sciences, Peking University, Beijing, China
| | - Nana Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
| | - Yifei Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
| | - Yang Dou
- School of Pharmaceutical Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China
| | - Xiaoyu Xu
- Vazyme Biotech Co., Ltd, Nanjing, Jiangsu, China
| | - Rui Shi
- CAS Key Laboratory of Microbial Physiological and Metabolic Engineering, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Bai Lu
- School of Pharmaceutical Sciences, IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing, China
| | - Ronghua Jin
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Yingmin Ma
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Chengfeng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China.
| | - Youchun Wang
- Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Institute for Biological Product Control, National Institutes for Food and Drug Control (NIFDC) and WHO Collaborating Center for Standardization and Evaluation of Biologicals, Beijing, China.
| | - Yingmei Feng
- Beijing Youan Hospital, Capital Medical University, Beijing, China.
| | - Junyu Xiao
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China.
- School of Life Sciences, Peking University, Beijing, China.
| | - Xiaoliang Sunney Xie
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, China.
- Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China.
- School of Life Sciences, Peking University, Beijing, China.
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17
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Zhang Y, Ma ZZ, Wu BW, Dou Y, Zhang Q, Yang LY, Chen EZ. [Establishment of a risk prediction model for bloodstream infection and analysis of its predictive value in patients with extremely severe burns]. Zhonghua Shao Shang Za Zhi 2021; 37:530-537. [PMID: 34139830 DOI: 10.3760/cma.j.cn501120-20210114-00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To establish a prediction model for bloodstream infection in patients with extremely severe burns based on the screened independent risk factors, and to analyze its predictive value. Methods: A retrospective case-control study was conducted. From January 1, 2010 to December 31, 2019, 307 patients with extremely severe burns were admitted to the Department of Burns and Plastic Surgery of Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medcine, including 251 males and 56 females, aged from 33 to 55 years. According to the occurrence of bloodstream infection, the patients were divided into non-bloodstream infection group (221 cases) and bloodstream infection group (86 cases). The gender, age, body mass index, outcome, length of hospital stay of patients were compared between the two groups, and the detection of bacteria in blood microbial culture of patients was analyzed in bloodstream infection group. The included 307 patients were divided into modeling group (219 cases) and validation group (88 cases) according to the random number table with the ratio of about 7∶3. The gender, age, body mass index, total burn area, full-thickness burn area, combination of inhalation injury, implementation of mechanical ventilation, days of mechanical ventilation, days of intensive care unit (ICU) stay, outcome, length of hospital stay, complication of bloodstream infection of patients were compared between the two groups. The patients in modeling group were divided into bloodstream infection subgroup and non-bloodstream infection subgroup. The total burn area, full-thickness burn area, combination of inhalation injury, implementation of mechanical ventilation, days of mechanical ventilation, and days of ICU stay of patients were compared between the two subgroups. The above-mentioned data between two groups were statistically analyzed with independent sample t test, chi-square test, and Mann-Whitney U test to screen out the factors with statistical significant differences in the subgroup univariate analysis of modeling group. The factors were used as variables, and binary multivariate logistic regression analysis was used to screen out the risk factors of bloodstream infection in patients with extremely severe burns, based on which the prediction model for bloodstream infection in patients with extremely severe burns of modeling group was established. The receiver operating characteristic (ROC) curve of the prediction model predicting the risk of bloodstream infection of patients in modeling group was drawn, and the area under the ROC curve was calculated. The sensitivity, specificity, and the best prediction probability were calculated according to the Youden index. The patients in validation group were divided into bloodstream infection subgroup (21 cases) and non-bloodstream infection subgroup (67 cases). The prediction probability>the best prediction probability of model was used as the judgment standard of bloodstream infection. The prediction model was used to predict the occurrence of bloodstream infection of patients in the two subgroups of validation group, and the incidence, specificity, and sensitivity of bloodstream infection were calculated, In addition, the ROC curve of the prediction model predicting the risk of bloodstream infection of patients in validation group was drawn, and the area under the ROC curve was calculated. Results: Compared with those of non-bloodstream infection group, the mortality of patients in bloodstream infection group was significantly higher (χ2=8.485, P<0.01), the length of hospital stay was significantly increased (Z=-3.003, P<0.01), but there was no significant change in gender, age, or body mass index (P>0.05). In bloodstream infection group, 110 strains of bacteria were detected in blood microbial culture, among which Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii were the top three bacteria, accounting for 35.45% (39/110), 26.36% (29/110), and 13.64% (15/110) respectively. Gender, age, body mass index, total burn area, full-thickness burn area, proportion of combination of inhalation injury, proportion of implementation of mechanical ventilation, days of mechanical ventilation, days of ICU stay, outcome, length of hospital stay, and proportion of complication of bloodstream infection of patients were similar between modeling group and validation group (P>0.05). Compared with those of non-bloodstream infection subgroup in modeling group, the total burn area, full-thickness burn area, proportion of combination of inhalation injury, proportion of implementation of mechanical ventilation, days of mechanical ventilation, and days of ICU stay of patients in bloodstream infection subgroup were significantly increased (Z=-4.429, t=-4.045, χ2=7.845, 8.845, Z=-3.904, -4.134, P<0.01). Binary multivariate logistic regression analysis showed that total burn area, days of ICU stay, and combination of inhalation injury were the independent risk factors for bloodstream infection of patients in modeling group (odds ratio=1.031, 1.018, 2.871, 95% confidence interval=1.004-1.059, 1.006-1.030, 1.345-6.128, P<0.05 or P<0.01). In modeling group, the area under the ROC curve was 0.773 (95% confidence interval=0.708-0.838); the sensitivity was 64.6%, the specificity was 77.9%, and the best prediction probability was 0.335 when the Youden index was 0.425. The bloodstream infection incidence of patients predicted by the prediction model in validation group was 27.27% (24/88), with specificity of 82.09% (55/67) and sensitivity of 57.14% (12/21). The area under the ROC curve in validation group was 0.759 (95% confidence interval=0.637-0.882). Conclusions: The total burn area, days of ICU stay, and combination of inhalation injury are the risk factors of bloodstream infection in patients with extremely severe burns. The prediction model for bloodstream infection risk in patients with extremely severe burns based on these factors has certain predictive value for burn centers with relatively stable treatment methods and bacterial epidemiology.
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Affiliation(s)
- Y Zhang
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medcine, Shanghai 200025, China
| | - Z Z Ma
- School of Nursing, Shanghai Jiao Tong University, Shanghai 200020, China
| | - B W Wu
- Nursing Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medcine, Shanghai 200025, China
| | - Y Dou
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medcine, Shanghai 200025, China
| | - Q Zhang
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medcine, Shanghai 200025, China
| | - L Y Yang
- Department of Critical Care, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - E Z Chen
- Emergency Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medcine, Shanghai 200025, China
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18
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Wang Y, Yu W, Ran L, Chen Z, Wang C, Dou Y, Qin Y, Suo Q, Li Y, Zeng J, Liang A, Dai Y, Wu Y, Ouyang X, Xiao Y. DELLA-NAC Interactions Mediate GA Signaling to Promote Secondary Cell Wall Formation in Cotton Stem. Front Plant Sci 2021; 12:655127. [PMID: 34305962 PMCID: PMC8299300 DOI: 10.3389/fpls.2021.655127] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 05/18/2021] [Indexed: 05/04/2023]
Abstract
Gibberellins (GAs) promote secondary cell wall (SCW) development in plants, but the underlying molecular mechanism is still to be elucidated. Here, we employed a new system, the first internode of cotton, and the virus-induced gene silencing method to address this problem. We found that knocking down major DELLA genes via VIGS phenocopied GA treatment and significantly enhanced SCW formation in the xylem and phloem of cotton stems. Cotton DELLA proteins were found to interact with a wide range of SCW-related NAC proteins, and virus-induced gene silencing of these NAC genes inhibited SCW development with downregulated biosynthesis and deposition of lignin. The findings indicated a framework for the GA regulation of SCW formation; that is, the interactions between DELLA and NAC proteins mediated GA signaling to regulate SCW formation in cotton stems.
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Qiu P, Dou Y, Ma LZ, Tang XX, Liu XL, Chen JW. Long non-coding RNA TTN-AS1 promotes the metastasis in breast cancer by epigenetically activating DGCR8. Eur Rev Med Pharmacol Sci 2020; 23:10835-10841. [PMID: 31858552 DOI: 10.26355/eurrev_201912_19787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Breast cancer (BC) is one of the most common fatal cancers. Recent studies have identified the vital roles of long non-coding RNAs (lncRNAs) in the development and progression of BC. This research aimed to investigate the underlying mechanisms of lncRNA TTN-AS1 in the metastasis of BC. PATIENTS AND METHODS TTN-AS1 expression of tissues was detected by Real Time-quantitative Polymerase Chain Reaction (RT-qPCR) in 50 BC patients. Wound healing assay and transwell assay were used to observe the phenotypic alteration of BC cells after knockdown or overexpression of TTN-AS1. Moreover, RT-qPCR and Western blot assay were performed to discover the potential targets of TTN-AS1 in BC. RESULTS TTN-AS1 expression in BC samples was significantly higher than that of the adjacent tissues. Besides, the migration and invasion of BC cells were markedly inhibited after TTN-AS1 was silenced, while promoted after TTN-AS1 overexpression. In addition, a remarkable decrease of DGCR8 was observed after TTN-AS1 was inhibited in BC cells, while DGCR8 was upregulated after overexpression of TTN-AS1. Furthermore, DGCR8 expression showed significant enhancement in BC tissues and was positively associated with TTN-AS1 level. CONCLUSIONS Our study uncovered a new oncogene in BC and suggested that TTN-AS1 could enhance BC cell migration and invasion via sponging DGCR8, which provided a novel therapeutic target for the treatment of breast cancer.
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Affiliation(s)
- P Qiu
- Department of Medical Oncology, Xingtai People's Hospital, Xingtai, China.
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20
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Ma G, Han D, Dang S, Yu N, Yang Q, Yang C, Jin C, Dou Y. Replacing true unenhanced imaging in renal carcinoma with virtual unenhanced images in dual-energy spectral CT: a feasibility study. Clin Radiol 2020; 76:81.e21-81.e27. [PMID: 32993881 DOI: 10.1016/j.crad.2020.08.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 08/21/2020] [Indexed: 11/18/2022]
Abstract
AIM To investigate the clinical value of virtual unenhanced (VNC) spectral computed tomography (CT) images to replace the conventional true unenhanced spectral CT images (TNC) in diagnosing renal carcinoma. MATERIALS AND METHODS Fifty-six cases of renal carcinoma confirmed by histopathology underwent conventional plain CT and contrast-enhanced spectral CT at arterial phase (AP) and venous phase (VP). VNC images were generated on an AW4.6 workstation. The CT attenuation, image noise, contrast-to-noise ratio (CNR), and signal-noise-ratio (SNR) of the renal lesions and normal kidneys, long and short axis diameters of the lesion were measured from the three image sets and analysed using one-way analysis of variance (ANOVA). Two radiologists evaluated image quality subjectively using a five-point score, and lesion signature using a three-point score. Image quality scores were compared statistically and tested for consistency. RESULTS The two reviewers had good agreement for subjective evaluation (Kappa>0.70) and there was no difference in the quality of the scores among the three image groups. The lesion signature scores were all above the acceptable level. The CNR and SNR values in VNC were significantly higher than in TNC (p<0.05). VNC images had lower renal noise than in TNC (p<0.05). There was no difference in the long and short axis diameters of the lesion among the three image groups. VNC had higher CT attenuation values for the lesion and kidney than TNC (p<0.05), but the differences were <5 HU. CONCLUSION VNC images in spectral CT may be used to replace the conventional plain CT to reduce imaging duration and radiation dose in diagnosing renal carcinoma.
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Affiliation(s)
- G Ma
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China
| | - D Han
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China
| | - S Dang
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China
| | - N Yu
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China
| | - Q Yang
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China
| | - C Yang
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China
| | - C Jin
- Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Yanta Western Road, Xi'an, Shannxi, 710061, China
| | - Y Dou
- Department of Radiology, Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, 712000, China.
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21
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Qiu P, Dou Y, Ma LZ, Tang XX, Liu XL, Chen JW. Long non-coding RNA TTN-AS1 promotes the metastasis in breast cancer by epigenetically activating DGCR8. Eur Rev Med Pharmacol Sci 2020; 24:7559. [PMID: 32744664 DOI: 10.26355/eurrev_202007_22212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long non-coding RNA TTN-AS1 promotes the metastasis in breast cancer by epigenetically activating DGCR8, by P. Qiu, Y. Dou, L.-Z. Ma, X.-X. Tang, X.-L. Liu, J.-W. Chen, published in Eur Rev Med Pharmacol Sci 2019; 23 (24): 10835-10841-DOI: 10.26355/eurrev_201912_19787-PMID: 31858552" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/19787.
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Affiliation(s)
- P Qiu
- Department of Medical Oncology, Xingtai People's Hospital, Xingtai, China
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22
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Dou Y, Zhang Q. [A single center study on antimicrobial use and bacterial resistance in burn ward]. Zhonghua Yi Xue Za Zhi 2020; 100:1401-1408. [PMID: 32392991 DOI: 10.3760/cma.j.cn112137-20191207-02673] [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 effect of antibiotics on bacterial resistance through analyzing the use of common antibiotics and the bacterial prevalence in single-center burn ward. Methods: The epidemiological data of pathogenic bacteria and the use of common antibiotics in burn ward of Ruijin Hospital Affiliated to Shanghai Jiaotong University Medical College was investigated in the past 9 years. Bacteria samples were collected from the wounds, catheters, blood, feces, urine and sputum of inpatients in the unit from January 2010 to December 2018. The antibiotics use density was calculated by defined daily doses (DDDs)/(1 000 patient-days). Results: (1) In the proportion of bacteria detected, Staphylococcus aureus was the first and sensitive to glycopeptide antibiotics. Klebsiella pneumonia (19.8%), Pseudomonas aeruginosa (11.9%) and Acinetobacter baumannii (11.5%) were the top three Gram-negative bacteria in 2018; the proportion of Klebsiella pneumoniae was significantly increased (R(2)=0.861, P<0.001). (2) The Pseudomonas aeruginosa resistance rate to ceftazidime (R(2)=0.447, P=0.049) and ciprofloxacin (R(2)=0.663, P=0.008) increased significantly. The Klebsiella pneumoniae resistance rate to piperacillin (R(2)=0.999, P=0.018), meropenem (R(2)=0.999, P=0.023), ciprofloxacin (R(2)=1.000, P=0.010) increased significantly. There was no significant trend in the Acinetobacter baumannii resistance rate. (3) The use density of meropenem increased significantly (R(2)=0.492, P=0.035), and that of ciprofloxacin decreased significantly (R(2)=0.572, P=0.018). (4) Carbapenems use density was positively correlated with resistance rate of Klebsiella pneumoniae to cefoperazone sulbactam (r=0.733, P=0.025), piperacillin tazobactam (r=0.684, P=0.042), cefuroxime (r=0.821, P=0.023), ceftazidime (r=0.741, P=0.022), imipenem (r=0.718, P=0.029), meropenem (r=0.690, P=0.040), amikacin (r=0.750, P=0.020). (5) Ciprofloxacin use density was negatively correlated with the Pseudomonas aeruginosa resistance rate to ceftazidime (r=-0.751, P=0.020), Ciprofloxacin (r=-0.873, P=0.002) and with the Klebsiella pneumoniae resistance rate to cefuroxime (r=-0.767, P=0.044), ceftazidime (r=-0.712, P=0.031), imipenem (r=-0.780, P=0.013), meropenem (r=-0.793, P=0.011), ciprofloxacin (r=-0.871, P=0.002), Sulfamethoxazole/trimethoprim (r=-0.793, P=0.011). Conclusion: Carbapenems can induce Klebsiella pneumoniae to be multiple drug resistance; through the relationship between ciprofloxacin use intensity and drug resistance, the strategy of only restricting a certain antimicrobial agent may not restore the bacterial sensitivity.
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Affiliation(s)
- Y Dou
- Burn and Plastic Surgery Department, Ruijin Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200025, China
| | - Q Zhang
- Burn and Plastic Surgery Department, Ruijin Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 200025, China
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23
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Zhang Y, Wang T, Lei J, Guo S, Wang S, Gu Y, Wang S, Dou Y, Zhuang X. Cerebral Damage after Carbon Monoxide Poisoning: A Longitudinal Diffusional Kurtosis Imaging Study. AJNR Am J Neuroradiol 2019; 40:1630-1637. [PMID: 31558500 DOI: 10.3174/ajnr.a6201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/25/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND PURPOSE Previous DTI cross-sectional studies have showed the cerebral damage feature was different in the three clinical stages after carbon monoxide poisoning. Diffusional kurtosis imaging (DKI) is an advanced diffusion imaging model and considered to better provide microstructural contrast in comparison with DTI parameters. The primary aim of this study was to assess microstructural changes in gray and white matter with diffusional kurtosis imaging in the acute, delayed neuropsychiatric, and chronic phases after acute carbon monoxide (CO) poisoning. The secondary aim was to relate diffusional kurtosis imaging measures to neuropsychiatric outcomes of acute carbon monoxide poisoning. MATERIALS AND METHODS In all, 17 patients with acute carbon monoxide poisoning and 30 sex- and age-matched healthy volunteers were enrolled in the study. Patients were scanned within 1 week, 3-8 weeks, and 6 months after acute carbon monoxide poisoning. Diffusional kurtosis imaging metrics including mean kurtosis, mean diffusivity, fractional anisotropy, and kurtosis fractional anisotropy were measured in 11 ROIs and then further correlated with neuropsychiatric scores. RESULTS In WM, mean kurtosis tended to increase from the acute-to-delayed neuropsychiatric phases and then decrease in the chronic phase, while in GM mean kurtosis showed a constant decline. Contrary to mean kurtosis, mean diffusivity first decreased then tended to increase in WM, while in GM, from the acute to chronic phases, mean diffusivity showed a constant increase. In both WM and GM, the fractional anisotropy and kurtosis fractional anisotropy values progressively declined with time. Kurtosis fractional anisotropy showed the best diagnostic efficiency with an area under the curve of 0.812 (P = .000). Along with neuropsychiatric scores, kurtosis fractional anisotropy of the centrum semiovale and Digit Span Backward were most relevant (r = 0.476, P = .000). CONCLUSIONS Longitudinally, microstructural changes were inconsistent in WM and GM with time after acute carbon monoxide poisoning. Diffusional kurtosis imaging metrics provided important complementary information to quantify the damage to cognitive impairment.
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Affiliation(s)
- Y Zhang
- From the Department of Radiology (Y.Z., J.L., S.G., Shuaiwen Wang, Y.D., X.Z.), The First Hospital of Lan Zhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Lanzhou, China
| | - T Wang
- Department of Neurology (T.W., Y.G.), The First Hospital of Lan Zhou University, Lan Zhou, China
| | - J Lei
- From the Department of Radiology (Y.Z., J.L., S.G., Shuaiwen Wang, Y.D., X.Z.), The First Hospital of Lan Zhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Lanzhou, China
| | - S Guo
- From the Department of Radiology (Y.Z., J.L., S.G., Shuaiwen Wang, Y.D., X.Z.), The First Hospital of Lan Zhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Lanzhou, China
| | - S Wang
- MR Scientific Marketing (Shaoyu Wang), Siemens Healthineers, Xi'an, China
| | - Y Gu
- Department of Neurology (T.W., Y.G.), The First Hospital of Lan Zhou University, Lan Zhou, China
| | - S Wang
- MR Scientific Marketing (Shaoyu Wang), Siemens Healthineers, Xi'an, China
| | - Y Dou
- From the Department of Radiology (Y.Z., J.L., S.G., Shuaiwen Wang, Y.D., X.Z.), The First Hospital of Lan Zhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Lanzhou, China
| | - X Zhuang
- From the Department of Radiology (Y.Z., J.L., S.G., Shuaiwen Wang, Y.D., X.Z.), The First Hospital of Lan Zhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Lanzhou, China
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Lan W, Dou Y, Wang X, Si W, Zhou Z, Zhuang S, Liu H, Liu Q, Zhang D. Polyazamacrocyclic Copper-Based Cyanide-Bridged Bimetallic Sandwich-Like Complexes: Synthesis, Crystal Structure, and Magnetic Properties. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619090129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
Tumor necrosis factor receptor-associated factor (TRAF) is an important binding protein of tumor necrosis factor (TNF) superfamily and the toll/IL-1 receptor (TIR) superfamily, which play an important role in innate immunity and ac-quired immunity. TRAFs family have 7 members (TRAF1-7), and TRAF6 has its special facture and biological function. TRAF6 has two special domains: C-terminal domain and N-terminal domain, which could integrate with multiple kinases and regulate signaling pathway function as an E3 ubiquitin ligase. Studies have increasingly found that TRAF6 is closely re-lated to central nervous system diseases, such as stroke, Traumatic brain injury, neurodegenerative diseases and neuropathic pain. Further research on the pathophysiological mechanism may be expected to become the new targets for the treatment of central nervous system diseases
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Affiliation(s)
- Yang Dou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, China
| | - Xiaodi Tian
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, China
| | - Jian Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, China
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Dou Y, Li L, Du J, He Y, Chen R, Li Y, Ma C, Liu H. Development of a multiplex two-gene real-time PCR assay for accurate detection of Klebsiella pneumoniae. Br J Biomed Sci 2018; 76:42-45. [PMID: 29991336 DOI: 10.1080/09674845.2018.1499167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Y Dou
- a Department of Clinical Laboratory , Shenzhen Shajing Hospital affiliated to Guangzhou Medical University , Shenzhen , China
| | - L Li
- b Dongguan Research Center, Traditional Chinese Medicine and New Drug Research Institute, Guangdong Medical University , Dongguan , China
| | - J Du
- a Department of Clinical Laboratory , Shenzhen Shajing Hospital affiliated to Guangzhou Medical University , Shenzhen , China
| | - Y He
- a Department of Clinical Laboratory , Shenzhen Shajing Hospital affiliated to Guangzhou Medical University , Shenzhen , China
| | - R Chen
- c Department of Clinical Laboratory , The Second People's Hospital of Futian District , Shenzhen , China
| | - Y Li
- a Department of Clinical Laboratory , Shenzhen Shajing Hospital affiliated to Guangzhou Medical University , Shenzhen , China
| | - C Ma
- a Department of Clinical Laboratory , Shenzhen Shajing Hospital affiliated to Guangzhou Medical University , Shenzhen , China
| | - H Liu
- a Department of Clinical Laboratory , Shenzhen Shajing Hospital affiliated to Guangzhou Medical University , Shenzhen , China
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Luan YJ, Xu Y, Cai J, Dou Y, Yu WJ, Wang KT, Liu SH, Yang PS, Qu X, Wei FC. Expression of Kif5b protein is significantly associated with the progression, recurrence and prognosis of oral squamous cell carcinoma. Eur Rev Med Pharmacol Sci 2018; 22:4542-4550. [PMID: 30058692 DOI: 10.26355/eurrev_201807_15509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Kinesin family member 5b (Kif5b), a conventional kinesin, mainly participates in lysosome and mitochondria transportation. Some studies have indicated that Kif5b may be associated with the development of a variety of tumors. However, the role Kif5b plays in oral squamous cell carcinoma (OSCC) has yet to be determined. Our study aimed at investigating the expression level of Kif5b in primary OSCC and discussing its clinical significance in patients' outcomes. PATIENTS AND METHODS We measured Kif5b expression in 82 OSCC tissue samples with immunohistochemistry. The associations between the expression level of Kif5b and clinicopathological characteristics as well as patients' survival were statistically assessed. RESULTS Kif5b level was significantly associated with tumor size (p=0.034), histological differentiation (p=0.028), disease recurrence (p=0.018), surrounding tissue invasion (p=0.045), recurrence time (p=0.036) and survival status (p=0.030). Kaplan-Meier cumulative survival analyses indicated that high expression of Kif5b was linked to worse overall survival (p=0.0112) and disease-free survival (p=0.0085). The univariate and multivariate Cox proportional hazard analysis further identified the expression status of Kif5b as an independent variable that correlated with patients' survival and recurrence. Furthermore, in 54 early-stage, clinically node negative OSCC patients, Kif5b expression were correlated with histological differentiation (p=0.034), disease recurrence (p=0.038) and surrounding tissue invasion (p=0.029). Univariate and multivariable logistic regression results showed that only Kif5b expression level could influence the probability of recurrence. CONCLUSIONS Our results reveal that Kif5b expression is associated with poor clinical outcome in OSCC and even in early-stage, clinically node negative OSCC and may be a potential target for OSCC treatment.
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Affiliation(s)
- Y-J Luan
- Department of Stomatology, Qilu Hospital and Institute of Stomatology, Shandong University, Jinan, China.
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Abstract
Objective: To investigate distribution and drug resistance of pathogens of burn patients. Methods: A total of 3 357 strains were cultured and isolated from 25 286 specimens of wounds excretion, deep venous catheters, venous blood, stool, mid-stream urine, sputum, puncture fluid, and throat swab of 11 510 burn patients hospitalized in our burn wards from January 2007 to December 2015. After being identified by API bacteria identification panels and automatically bacteria identification equipment, drug-resistances of Staphylococcus aureus, Pseudomonas aeruginosa, Acinetobacter baumannii, and Klebsiella pneumoniae to 28 common antibiotics were tested by drug sensitivity test with K-B paper disk diffusion method. The WHONET 5.6 software was used to analyze constituent ratio of gram-negative bacteria and gram-positive bacteria in each year, distribution of pathogens in each year, and drug resistance of the above-mentioned 4 pathogens in 9 years to 28 common antibiotics. Data were analyzed by the linear model curve fitting. Results: (1) From 2007 to 2015, constituent ratios of gram-negative bacteria were respectively 41.22% (101/245), 41.88% (165/394), 45.92% (169/368), 42.54% (208/489), 52.35% (267/510), 56.89% (194/341), 58.99% (210/356), 56.95% (172/302), and 50.28% (177/352), with significantly increasing trend (R(2)=0.625, P<0.05); constituent ratios of gram-positive bacteria were respectively 58.78% (144/245), 58.12% (229/394), 54.08% (199/368), 57.46% (281/489), 47.65% (243/510), 43.11% (147/341), 41.01% (146/356), 43.05% (130/302), 49.72% (175/352), with significantly decreasing trend (R(2)=0.625, P<0.05). In 9 years, constituent ratio of Staphylococcus aureus ranked the first in all bacteria, and constituent ratios of Pseudomonas aeruginosa and Klebsiella pneumoniae were with significantly increasing trend (R(2)=0.811, 0.778, P<0.01). (2) In 9 years, drug-resistant rates of Staphylococcus aureus to gentamycin and rifampicin were with significantly decreasing trend (R(2)=0.727, 0.766, P<0.01); drug-resistant rates of Staphylococcus aureus to phosphonomycin were always in lower levels of 4.6% to 19.5%. In 9 years, drug-resistant rates of Pseudomonas aeruginosa to ceftazidime and ciprofloxacin had no significant change in trend (R(2)=0.023, <0.001, P>0.05), while drug-resistant rates of Pseudomonas aeruginosa to other 10 common antibiotics were with significantly increasing trend (R(2)=0.764, 0.793, 0.785, 0.768, 0.752, 0.749, 0.789, 0.786, 0.706, 0.629, P<0.01). In 9 years, drug-resistant rate of Acinetobacter baumannii to ampicillin/sulbactam was with significantly decreasing trend (R(2)=0.652, P<0.01), and drug-resistant rate of Acinetobacter baumannii to amikacin was with significantly increasing trend ( R(2)=0.531, P<0.05). In 9 years, drug-resistant rates of Klebsiella pneumoniae to piperacillin, ampicillin/sulbactam, cefuroxime, ceftazidime, cefotaxime, cefepime, imipenem, meropenem, amikacin, and gentamicin were with obviously increasing trend (R(2)=0.481, 0.672, 0.694, 0.532, 0.810, 0.641, 0.809, 0.709, 0.579, 0.810, P<0.05 or P<0.01). Conclusions: Constituent ratios of gram-positive bacteria of Pseudomonas aeruginosa and Klebsiella pneumoniae of burn patients hospitalized in our burn wards from 2007 to 2015 were significantly increased, while constituent ratios of Staphylococcus aureus of those children always ranked the first. Drug-resistence of bacteria of those children in our burn wards was serious. Drug-resistant rate of Staphylococcus aureus only to phosphonomycin was always in lower level. Drug-resistant rates of Pseudomonas aeruginosa to 10 common antibiotics except ceftazidime and ciprofloxacin were significantly increased. Drug-resistant rate of Acinetobacter baumannii only to ampicillin/sulbactam was significantly decreased. Drug-resistant rates of Klebsiella pneumoniae to most common antibiotics were significantly increased.
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Affiliation(s)
- Y Dou
- Department of Burns and Plastic Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China
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Dou Y, Rutanhira H, Chen X, Mishra A, Wang C, Fletcher HM. Role of extracytoplasmic function sigma factor PG1660 (RpoE) in the oxidative stress resistance regulatory network of Porphyromonas gingivalis. Mol Oral Microbiol 2017; 33:89-104. [PMID: 29059500 DOI: 10.1111/omi.12204] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2017] [Indexed: 12/27/2022]
Abstract
In Porphyromonas gingivalis, the protein PG1660, composed of 174 amino acids, is annotated as an extracytoplasmic function (ECF) sigma factor (RpoE homologue-σ24). Because PG1660 can modulate several virulence factors and responds to environmental signals in P. gingivalis, its genetic properties were evaluated. PG1660 is co-transcribed with its downstream gene PG1659, and the transcription start site was identified as adenine residue 54-nucleotides upstream of the ATG translation start codon. In addition to binding its own promoter, using the purified rPG1660 and RNAP core enzyme from Escherichia coli with the PG1660 promoter DNA as template, the function of PG1660 as a sigma factor was demonstrated in an in vitro transcription assay. Transcriptome analyses of a P. gingivalis PG1660-defective isogenic mutant revealed that under oxidative stress conditions 176 genes including genes involved in secondary metabolism were downregulated more than two-fold compared with the parental strain. The rPG1660 protein also showed the ability to bind to the promoters of the highly downregulated genes in the PG1660-deficient mutant. As the ECF sigma factor PG0162 has a 29% identity with PG1660 and can modulate its expression, the cross-talk between their regulatory networks was explored. The expression profile of the PG0162PG1660-deficient mutant (P. gingivalis FLL356) revealed that the type IX secretion system genes and several virulence genes were downregulated under hydrogen peroxide stress conditions. Taken together, we have confirmed that PG1660 can function as a sigma factor, and plays an important regulatory role in the oxidative stress and virulence regulatory network of P. gingivalis.
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Affiliation(s)
- Y Dou
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - H Rutanhira
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - X Chen
- Department of Basic Sciences, School of Medicine, Center for Genomics, Loma Linda University, Loma Linda, CA, USA
| | - A Mishra
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - C Wang
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Department of Basic Sciences, School of Medicine, Center for Genomics, Loma Linda University, Loma Linda, CA, USA
| | - H M Fletcher
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Institute of Oral Biology, Kyung Hee University, Seoul, Korea
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Xu S, Dou Y, Ye B, Wu Q, Wang Y, Hu M, Ma F, Rong X, Guo J. Ganoderma lucidum polysaccharides improve insulin sensitivity by regulating inflammatory cytokines and gut microbiota composition in mice. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.032] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Dou Y, Shen H, Feng D, Li H, Tian X, Zhang J, Wang Z, Chen G. Tumor necrosis factor receptor-associated factor 6 participates in early brain injury after subarachnoid hemorrhage in rats through inhibiting autophagy and promoting oxidative stress. J Neurochem 2017; 142:478-492. [PMID: 28543180 DOI: 10.1111/jnc.14075] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 04/24/2017] [Accepted: 05/17/2017] [Indexed: 12/21/2022]
Abstract
Tumor necrosis factor receptor-associated factor 6 (TRAF6) is a member of the TRAF family and an important multifunctional intracellular adaptin of the tumor necrosis factor superfamily and toll/IL-1 receptor (TIR) superfamily. TRAF6 has been studied in several central nervous system diseases, including ischemic stroke, traumatic brain injury, and neurodegenerative diseases, but its role in subarachnoid hemorrhage (SAH) has not been fully illustrated. This study was designed to explore changes of expression level and potential roles and mechanisms of TRAF6 in early brain injury (EBI) after SAH using a Sprague-Dawley rat model of SAH induced in 0.3 mL non-heparinized autologous arterial blood injected into the pre-chiasmatic cistern. First, compared with the sham group, we found that the expression levels of TRAF6 increased gradually and peaked at 24 h after SAH. Second, the results showed that application of TRAF6 over-expression plasmid and genetic silencing siRNA could increase or decrease expression of TRAF6, respectively, and severely exacerbate or relieve EBI after SAH, including neuronal death, brain edema, and blood-brain barrier injury. Meanwhile, the levels of autophagy and oxidative stress were reduced and increased separately. Finally, GFP-TRAF6-C70A, which is a TRAF6 mutant that lacks E3 ubiquitin ligase activity, was used to explore the mechanism of TRAF6 in SAH, and the results showed that EBI and oxidative stress were reduced, but the levels of autophagy were increased under this condition. Collectively, these results indicated that TRAF6 affected the degree of EBI after SAH by inhibiting autophagy and promoting oxidative stress.
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Affiliation(s)
- Yang Dou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | | | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiaodi Tian
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jian Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Wang Z, Zhou F, Dou Y, Tian X, Liu C, Li H, Shen H, Chen G. Melatonin Alleviates Intracerebral Hemorrhage-Induced Secondary Brain Injury in Rats via Suppressing Apoptosis, Inflammation, Oxidative Stress, DNA Damage, and Mitochondria Injury. Transl Stroke Res 2017; 9:74-91. [PMID: 28766251 PMCID: PMC5750335 DOI: 10.1007/s12975-017-0559-x] [Citation(s) in RCA: 203] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 07/20/2017] [Accepted: 07/23/2017] [Indexed: 12/12/2022]
Abstract
Intracerebral hemorrhage (ICH) is a cerebrovascular disease with high mortality and morbidity, and the effective treatment is still lacking. We designed this study to investigate the therapeutic effects and mechanisms of melatonin on the secondary brain injury (SBI) after ICH. An in vivo ICH model was induced via autologous whole blood injection into the right basal ganglia in Sprague-Dawley (SD) rats. Primary rat cortical neurons were treated with oxygen hemoglobin (OxyHb) as an in vitro ICH model. The results of the in vivo study showed that melatonin alleviated severe brain edema and behavior disorders induced by ICH. Indicators of blood-brain barrier (BBB) integrity, DNA damage, inflammation, oxidative stress, apoptosis, and mitochondria damage showed a significant increase after ICH, while melatonin reduced their levels. Meanwhile, melatonin promoted further increasing of expression levels of antioxidant indicators induced by ICH. Microscopically, TUNEL and Nissl staining showed that melatonin reduced the numbers of ICH-induced apoptotic cells. Inflammation and DNA damage indicators exhibited an identical pattern compared to those above. Additionally, the in vitro study demonstrated that melatonin reduced the apoptotic neurons induced by OxyHb and protected the mitochondrial membrane potential. Collectively, our investigation showed that melatonin ameliorated ICH-induced SBI by impacting apoptosis, inflammation, oxidative stress, DNA damage, brain edema, and BBB damage and reducing mitochondrial membrane permeability transition pore opening, and melatonin may be a potential therapeutic agent of ICH.
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Affiliation(s)
- Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China
| | - Feng Zhou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China
| | - Yang Dou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China
| | - Xiaodi Tian
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China
| | - Chenglin Liu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China.
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, Jiangsu Province, 215006, China.
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Tian X, Sun L, Feng D, Sun Q, Dou Y, Liu C, Zhou F, Li H, Shen H, Wang Z, Chen G. HMGB1 promotes neurovascular remodeling via Rage in the late phase of subarachnoid hemorrhage. Brain Res 2017; 1670:135-145. [PMID: 28606778 DOI: 10.1016/j.brainres.2017.06.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 12/28/2016] [Revised: 04/06/2017] [Accepted: 06/02/2017] [Indexed: 01/03/2023]
Abstract
High-mobility group box1 (HMGB1) is a nuclear protein widely expressed in the central nervous system. Extracellular HMGB1 serves as a proinflammatory cytokine and contributes to brain injury during the acute stage post-stroke. Recently, increasing evidence has demonstrated beneficial effects of HMGB1 in some types of brain injury, but little is known about its effects during the late phase of subarachnoid hemorrhage (SAH). This study was designed to explore the potential roles and mechanisms of HMGB1 and its receptor, receptor for advanced glycation end-products (Rage), on brain recovery in the late stage of experimental SAH. Two inhibitors of HMGB1, ethyl pyruvate and glycyrrhizin (EP and GA), and Rage antagonist FPS-ZM1 were used to determine whether HMGB1 promotes brain recovery after SAH. The administration of EP, GA, and FPS-ZM1 effectively reduced HMGB1 and Rage expression. Correspondingly, protein levels of beneficial growth factors (NGF, BDNF, and VEGF) and numbers of BrdU and DCX positive neurons in the cortex were also decreased. The biphasic roles of HMGB1 may be based on the different redox modifications of cysteine residues. In this research, rats injected with two different redox status HMGB1 showed different prognosises at 7-14day after SAH. Recombinant HMGB1 can promote cytokine stimulating activity and aggravate brain injury. However, oxidized HMGB1 was unable to stimulate TNF production but can promote brain recovery by promoting neurotrophin expression. In conclusion, our investigation identified that HMGB1 promotes neurovascular recovery via Rage and may act in the oxidized state in the late stage of SAH.
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Affiliation(s)
- Xiaodi Tian
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Liang Sun
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Dongxia Feng
- Scott & White Clinic-Temple, 2401 S.31st Street, Temple TX 76508, USA
| | - Qing Sun
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yang Dou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Chenglin Liu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Feng Zhou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.
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Abstract
Stroke is a kind of acute cerebrovascular disease characterized by the focal lack of neurological function, including ischemic stroke and hemorrhagic stroke. As society ages rapidly, stroke has become the second leading cause of disability and death, and also become the main threat to human health and life. In recent years, findings from increasing animal and clinical trials have supplied scientific evidences for the treatment of stroke. Hydrogen sulfide (H2S), which has always been seen as a toxic gas, now has been thought to be the third gaseous signaling molecule following nitric oxide and carbon monoxide. Accumulating evidences indicate that H2S plays an important role in stroke. Given that its neuroprotective effect is dose-dependent, only when its concentration is relatively low, H2S can yield the neuroprotection, while high dose may lead to neurotoxicity. All these study results suggest that H2S may offer a new promising application for the therapy of stroke. Here, our review will present the role of H2S in stroke from its mechanism to animal and clinical studies.
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Affiliation(s)
- Yang Dou
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
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Chen H, Dou Y, Zheng X, Tang Y, Zhang M, Zhang Y, Wang Z, Diao Y. Hydropericardium Hepatitis Syndrome Emerged in Cherry Valley Ducks in China. Transbound Emerg Dis 2016; 64:1262-1267. [DOI: 10.1111/tbed.12500] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Indexed: 11/27/2022]
Affiliation(s)
- H. Chen
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - Y. Dou
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - X. Zheng
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - Y. Tang
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - M. Zhang
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - Y. Zhang
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - Z. Wang
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
| | - Y. Diao
- College of Animal Science and Technology; Shandong Agricultural University; Tai'an Shandong China
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Chen H, Tang Y, Dou Y, Zheng X, Diao Y. Evidence for Vertical Transmission of Novel Duck-Origin Goose Parvovirus-Related Parvovirus. Transbound Emerg Dis 2016; 63:243-7. [PMID: 26890433 DOI: 10.1111/tbed.12487] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Indexed: 12/31/2022]
Abstract
In 2015, novel duck-origin goose parvovirus-related parvovirus (N-GPV) infection progressively appeared in commercial Cherry Valley duck flocks in North China. Diseased ducks were observed to have beak atrophy and dwarfism syndrome (BADS). A previous study showed that a high seropositive rate for N-GPV indicated a latent infection in most breeder duck flocks. To investigate this possibility in hatching eggs collected from N-GPV-infected breeder ducks, 120 eggs were collected at various stages of embryonic development for viral DNA detection and an N-GPV-specific antibody test. N-GPV DNA was present in nine hatching eggs, eleven duck embryo and eight newly hatched ducklings. Of the newly hatched ducklings, 58.33% (21/36) were seropositive. Further, two isolates were obtained from a 12-day-old duck embryo and a newly hatched duckling. N-GPV infection did not reduce the fertilization rate and hatchability. These results indicate possible vertical transmission of N-GPV and suggest that it may be transmitted from breeder ducks to ducklings in ovo.
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Affiliation(s)
- H Chen
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, China
| | - Y Tang
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, China
| | - Y Dou
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, China
| | - X Zheng
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, China
| | - Y Diao
- College of Animal Science and Technology, Shandong Agricultural University, Tai'an, Shandong, China
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Boutrin MC, Yu Y, Wang C, Aruni W, Dou Y, Shi L, Fletcher HM. A putative TetR regulator is involved in nitric oxide stress resistance in Porphyromonas gingivalis. Mol Oral Microbiol 2015; 31:340-53. [PMID: 26332057 DOI: 10.1111/omi.12128] [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] [Accepted: 08/24/2015] [Indexed: 02/02/2023]
Abstract
To survive in the periodontal pocket, Porphyromonas gingivalis, the main causative agent of periodontal disease, must overcome oxidative and nitric oxide (NO) stress. Previously, we reported that, in the presence of NO comparable to stress conditions, the transcriptome of P. gingivalis was differentially expressed, and genes belonging to the PG1178-81 cluster were significantly upregulated. To further evaluate their role(s) in NO stress resistance, these genes were inactivated by allelic exchange mutagenesis. Isogenic mutants P. gingivalis FLL460 (ΔPG1181::ermF) and FLL461 (ΔPG1178-81::ermF) were black-pigmented, with gingipain and hemolytic activities comparable to that of the wild-type strain. Whereas the recovery of these isogenic mutants from NO stress was comparable to the wild-type, there was increased sensitivity to hydrogen peroxide-induced stress. RNA-Seq analysis under conditions of NO stress showed that approximately 5 and 8% of the genome was modulated in P. gingivalis FLL460 and FLL461, respectively. The PG1178-81 gene cluster was shown to be part of the same transcriptional unit and is inducible in response to NO stress. In the presence of NO, PG1181, a putative transcriptional regulator, was shown to bind to its own promoter region and that of several other NO responsive genes including PG0214 an extracytoplasmic function σ factor, PG0893 and PG1236. Taken together, the data suggest that PG1181 is a NO responsive transcriptional regulator that may play an important role in the NO stress resistance regulatory network in P. gingivalis.
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Affiliation(s)
- M-C Boutrin
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Y Yu
- School of Pharmacy, Fudan University, Shanghai, China
| | - C Wang
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - W Aruni
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Y Dou
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - L Shi
- School of Pharmacy, Fudan University, Shanghai, China
| | - H M Fletcher
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Institute of Oral Biology, Kyung Hee University, Seoul, Korea
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Dou Y, Aruni W, Muthiah A, Roy F, Wang C, Fletcher HM. Studies of the extracytoplasmic function sigma factor PG0162 in Porphyromonas gingivalis. Mol Oral Microbiol 2015. [PMID: 26216199 DOI: 10.1111/omi.12122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PG0162, annotated as an extracytoplasmic function (ECF) sigma factor in Porphyromonas gingivalis, is composed of 193 amino acids. As previously reported, the PG0162-deficient mutant, P. gingivalis FLL350 showed significant reduction in gingipain activity compared with the parental strain. Because this ECF sigma factor could be involved in the virulence regulation in P. gingivalis, its genetic properties were further characterized. A 5'-RACE analysis showed that the start of transcription of the PG0162 gene occurred from a guanine (G) residue 69 nucleotides upstream of the ATG translation initiation codon. The function of PG0162 as a sigma factor was confirmed in a run-off in vitro transcription assay using the purified rPG0162 and RNAP core enzyme from Escherichia coli with the PG0162 promoter as template. As an appropriate PG0162 inducing environmental signal is unknown, a strain overexpressing the PG0162 gene designated P. gingivalis FLL391 was created. Compared with the wild-type strain, transcriptome analysis of P. gingivalis FLL391 showed that approximately 24% of the genome displayed altered gene expression (260 upregulated genes; 286 downregulated genes). Two other ECF sigma factors (PG0985 and PG1660) were upregulated more than two-fold. The autoregulation of PG0162 was confirmed with the binding of the rPG0162 protein to the PG0162 promoter in electrophoretic mobility shift assay. In addition, the rPG0162 protein also showed the ability to bind to the promoter region of two genes (PG0521 and PG1167) that were most upregulated in P. gingivalis FLL391. Taken together, our data suggest that PG0162 is a sigma factor that may play an important role in the virulence regulatory network in P. gingivalis.
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Affiliation(s)
- Y Dou
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - W Aruni
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - A Muthiah
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - F Roy
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - C Wang
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - H M Fletcher
- Division of Microbiology and Molecular Genetics, Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Institute of Oral Biology, Kyung Hee University, Seoul, Republic of Korea
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Yan Q, Liu HS, Yao D, Li X, Chen H, Dou Y, Wang Y, Pei Y, Xiao YH. The Basic/Helix-Loop-Helix Protein Family in Gossypium: Reference Genes and Their Evolution during Tetraploidization. PLoS One 2015; 10:e0126558. [PMID: 25992947 PMCID: PMC4436304 DOI: 10.1371/journal.pone.0126558] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 04/03/2015] [Indexed: 12/05/2022] Open
Abstract
Basic/helix-loop-helix (bHLH) proteins comprise one of the largest transcription factor families and play important roles in diverse cellular and molecular processes. Comprehensive analyses of the composition and evolution of the bHLH family in cotton are essential to elucidate their functions and the molecular basis of cotton development. By searching bHLH homologous genes in sequenced diploid cotton genomes (Gossypium raimondii and G. arboreum), a set of cotton bHLH reference genes containing 289 paralogs were identified and named as GobHLH001-289. Based on their phylogenetic relationships, these cotton bHLH proteins were clustered into 27 subfamilies. Compared to those in Arabidopsis and cacao, cotton bHLH proteins generally increased in number, but unevenly in different subfamilies. To further uncover evolutionary changes of bHLH genes during tetraploidization of cotton, all genes of S5a and S5b subfamilies in upland cotton and its diploid progenitors were cloned and compared, and their transcript profiles were determined in upland cotton. A total of 10 genes of S5a and S5b subfamilies (doubled from A- and D-genome progenitors) maintained in tetraploid cottons. The major sequence changes in upland cotton included a 15-bp in-frame deletion in GhbHLH130D and a long terminal repeat retrotransposon inserted in GhbHLH062A, which eliminated GhbHLH062A expression in various tissues. The S5a and S5b bHLH genes of A and D genomes (except GobHLH062) showed similar transcription patterns in various tissues including roots, stems, leaves, petals, ovules, and fibers, while the A- and D-genome genes of GobHLH110 and GobHLH130 displayed clearly different transcript profiles during fiber development. In total, this study represented a genome-wide analysis of cotton bHLH family, and revealed significant changes in sequence and expression of these genes in tetraploid cottons, which paved the way for further functional analyses of bHLH genes in the cotton genus.
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Affiliation(s)
- Qian Yan
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Hou-Sheng Liu
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Dan Yao
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Xin Li
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Han Chen
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Yang Dou
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Yi Wang
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Yan Pei
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
| | - Yue-Hua Xiao
- Biotechnology Research Center, Chongqing Key Laboratory of Application and Safety Control of Genetically Modified Crops, Southwest University, Beibei, Chongqing, China
- * E-mail:
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Dou Y, Robles A, Roy F, Aruni AW, Sandberg L, Nothnagel E, Fletcher HM. The roles of RgpB and Kgp in late onset gingipain activity in the vimA-defective mutant of Porphyromonas gingivalis W83. Mol Oral Microbiol 2015; 30:347-60. [PMID: 25858089 DOI: 10.1111/omi.12098] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2015] [Indexed: 11/26/2022]
Abstract
Previous studies have shown that VimA, an acetyltransferase, can modulate gingipain biogenesis in Porphyromonas gingivalis. Inactivation of the vimA gene resulted in isogenic mutants that showed a late onset of gingipain activity that only occurred during the stationary growth phase. To further elucidate the role and contribution of the gingipains in this VimA-dependent process, isogenic mutants defective in the gingipain genes in the vimA-deficient genetic background were evaluated. In contrast with the wild-type strain, RgpB and Kgp gingipain activities were absent in exponential phase in the ∆rgpA::tetQ-vimA::ermF mutant. However, these activities increased to 31 and 53%, respectively, of that of the wild-type during stationary phase. In the ∆rgpA::cat-∆kgp::tetQ-vimA::ermF mutant, the RgpB protein was observed in the extracellular fraction but no activity was present even at the stationary growth phase. There was no gingipain activity observed in the ∆rgpB::cat-∆kgp::tetQ-vimA::ermF mutant whereas Kgp activity in ∆rgpA::cat-∆rgpB::tetQ-vimA::ermF mutant was 24% of the wild-type at late stationary phase. In contrast to RgpA, the glycosylation profile of the RgpB catalytic domain from both W83 and P. gingivalis FLL92 (vimA::ermF) showed similarity. Taken together, the results suggest multiple gingipain activation pathways in P. gingivalis. Whereas the maturation pathways for RgpA and RgpB are different, the late-onset gingipain activity in the vimA-defective mutant was due to activation/maturation of RgpB and Kgp. Moreover, unlike RgpA, which is VimA-dependent, the maturation/activation pathways for RgpB and Kgp are interdependent in the absence VimA.
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Affiliation(s)
- Y Dou
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - A Robles
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - F Roy
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - A W Aruni
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - L Sandberg
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - E Nothnagel
- Botany and Plant Sciences, University of California, Riverside, CA, USA
| | - H M Fletcher
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Institute of Oral Biology, Kyung Hee University, Seoul, Korea
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Liu J, Wu J, Dou Y, Lv M, Tang J, Zhou YX. [Assessment of quality of life after multiple arthroplasty]. Beijing Da Xue Xue Bao Yi Xue Ban 2015; 47:285-288. [PMID: 25882946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To evaluate the effectiveness of conducting multiple arthroplasty to treat multiple joints disease in terms of quality of life (QOL) and function improvement. METHODS We compared our results with the reported results of single and dual arthroplasty to see if there is any improvement in QOL, functional scores or complications. In this study, 13 patients admitted to Department of Adult Reconstructive Surgery, Beijing Jishuitan hospital from 2005 to 2009 were included. Questionnaires SF-36 were used to evaluate the QOL. Harris hip score, American Knee Society Score (KSS) were used to evaluate the joint function. The patients were evaluated before surgery to the latest follow up. RESULTS SF-36 has changed as follow: physical function 4.17 ± 14.43 → 65.83 ± 24.76, role physical 25.00 ± 26.11 → 60.42 ± 45.8, bodily pain 23.83 ± 21.41 → 76.88 ± 20.89, general health 53.33 ± 33.87 → 76.67 ± 14.67, vitality 50.42 ± 17.25 → 71.67 ± 16.28, social functioning 29.17 ± 33.50 → 73.96 ± 33.90, role emotional 22.08 ± 35.61 → 77.77 ± 41.03, mental health 53.33 ± 25.70 → 82.67 ± 14.41, which indicated that they all improved greatly after the surgery (P < 0.05). Harris score increased from 37.68 ± 14.71 before the surgery to 83.36 ± 13.54 after the surgery. KSS has also showed sharp improvement (P < 0.001) in both clinical score (42.52 ± 23.83 → 77.74 ± 20.67) and function score (-2.61 ± 22.56 → 65.65 ± 30.76). CONCLUSION Multiple arthroplasty is one of the most effective methods which can markedly improve the quality of life in patients with multiple joints disease. But complications are common and joint functions are relatively poor.
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Affiliation(s)
- J Liu
- Department of Adult Reconstructive Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - J Wu
- Department of Adult Reconstructive Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Y Dou
- Department of Adult Reconstructive Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - M Lv
- Department of Adult Reconstructive Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - J Tang
- Department of Adult Reconstructive Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Y X Zhou
- Department of Adult Reconstructive Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
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Cheng J, Anastasi J, Yue M, Dou Y, Shen Q, Larson R, Vardiman J. 17 IDENTIFYING DISTINCT DIFFERENTIATION/LINEAGE-SPECIFIC DRUG-SENSITIVE CHROMATIN STRUCTURE AND THE UNDERLYING NOVEL MUTATIONS IN MDS AND LEUKEMIAS. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30018-7] [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: 11/24/2022]
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McKenzie RME, Aruni W, Johnson NA, Robles A, Dou Y, Henry L, Boskovic DS, Fletcher HM. Metabolome variations in the Porphyromonas gingivalis vimA mutant during hydrogen peroxide-induced oxidative stress. Mol Oral Microbiol 2014; 30:111-27. [PMID: 25055986 DOI: 10.1111/omi.12075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2014] [Indexed: 01/01/2023]
Abstract
The adaptability and survival of Porphyromonas gingivalis in the oxidative microenvironment of the periodontal pocket are indispensable for survival and virulence, and are modulated by multiple systems. Among the various genes involved in P. gingivalis oxidative stress resistance, vimA gene is a part of the 6.15-kb locus. To elucidate the role of a P. gingivalis vimA-defective mutant in oxidative stress resistance, we used a global approach to assess the transcriptional profile, to study the unique metabolome variations affecting survival and virulence in an environment typical of the periodontal pocket. A multilayered protection strategy against oxidative stress was noted in P. gingivalis FLL92 with upregulation of detoxifying genes. The duration of oxidative stress was shown to differentially modulate transcription with 94 (87%) genes upregulated twofold during 10 min and 55 (83.3%) in 15 min. Most of the upregulated genes (55%), fell in the hypothetical/unknown/unassigned functional class. Metabolome variation showed reduction in fumarate and formaldehyde, hence resorting to alternative energy generation and maintenance of a reduced metabolic state. There was upregulation of transposases, genes encoding for the metal ion binding protein transport and secretion system.
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Affiliation(s)
- R M E McKenzie
- Division of Microbiology and Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA, USA; Center for Dental Research, School of Dentistry, Loma Linda University, Loma Linda, CA, USA
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Tong B, Wan B, Wei Z, Wang T, Zhao P, Dou Y, Lv Z, Xia Y, Dai Y. Role of cathepsin B in regulating migration and invasion of fibroblast-like synoviocytes into inflamed tissue from patients with rheumatoid arthritis. Clin Exp Immunol 2014; 177:586-97. [PMID: 24749816 DOI: 10.1111/cei.12357] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2014] [Indexed: 12/27/2022] Open
Abstract
Cathepsin B (CB), an important proteinase that participates in joint destruction in rheumatoid arthritis (RA), exhibits higher expression in fibroblast-like synoviocyte (FLS) of abnormal proliferative synovial tissues. Whether and how it affects the biological behaviours of RA-FLS, such as migration and invasion, are poorly understood. In the present study, CB expression in synovial tissues of patients with RA and ostearthritis (OA) were measured by quantitative polymerase chain reaction (qPCR) and immunohistochemistry (IHC), respectively. Stable depletion of endogenous CB was achieved by small interfering RNA (siRNA) transfection, and decrease of CB activity was acquired by using its specific inhibitor (CA074Me). The effects of CA074Me and RNA interference (RNAi) treatments on proliferation, migration, invasion, matrix metalloproteinase (MMP)-2/-9 expression, focal adhesion kinase (FAK) activation, and mitogen-activated protein kinases (MAPKs) phosphorylation of FLS were analysed. In RA synovial tissues, CB was expressed at elevated levels compared with OA synovial tissues. CA074Me could inhibit invasion of FLS obtained from RA patients in an ex-vivo invasion model. CA074Me and siRNA treatments suppressed the migration and invasion of FLS, reduced the activity, expression and mRNA level of MMP-2, restrained the activation of FAK and reduced the expression of F-actin. Moreover, CA074Me decreased the phosphorylation of P38 MAPK and c-Jun N-terminal kinase (JNK) in FLS, while siCB treatment reduced the phosphorylation of P38 but not JNK. CB substantially contributes to the invasive phenotype of FLS that leads to joint destruction in RA. This proteinase may show promise as a therapeutic target in inflammatory arthritis.
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Affiliation(s)
- B Tong
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, China
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Dawson A, Lutz J, Date K, Dou Y, Flynn M, Maraveyas A, Greenman J, Madden L. Microfluidic Maintenance of Ovarian Tumour Biopsies for the Study of Hypercoaguability During Chemotherapy. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu338.31] [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: 11/13/2022] Open
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Zhang J, Dou Y, Zhong Z, Su J, Xu D, Tang F, Zhang X, Zhao Y, Zeng X, Zhang F, You X. Clinical characteristics and therapy exploration of active human cytomegalovirus infection in 105 lupus patients. Lupus 2014; 23:889-97. [PMID: 24836584 DOI: 10.1177/0961203314532560] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 05/18/2013] [Accepted: 03/14/2014] [Indexed: 11/16/2022]
Abstract
Systemic lupus erythematosus (SLE) has protean clinical manifestations of varying severity over the course of its onset, exacerbation, remission and flare that could often pose significant challenges for clinicians in their decision making as to whether to treat aggressively or to look for concurrent conditions such as infection with opportunistic pathogens. Human cytomegalovirus (HCMV) is one of those pathogens and is frequently encountered in our daily management of lupus patients. To investigate the clinical characteristics and therapeutic options of active HCMV infection in patients with SLE, we retrospectively reviewed clinical data of 105 inpatients in our department of Rheumatology and Clinical Immunology of Peking Union Medical College Hospital (PUMCH) diagnosed with both SLE and active HCMV infection from January 2006 to January 2012. Three groups were designated that included 42 cases of HCMV triggering SLE, 31 cases of HCMV exacerbating SLE, and 32 cases of HCMV mimicking SLE flare based on the relationship of HCMV infection and SLE. 1) Hematocytopenia (81%), fever (73.3%) and liver dysfunction (54.3%) were the most common clinical manifestations. The differences among the three groups with regard to butterfly erythema, cutaneous vasculitis, arthritis, serositis, central nervous system involvement and renal involvement were statistically significant (p < 0.05). 2) Positive rate of HCMV-pp65, compared with HCMV-IgM and HCMV-DNA, was the highest (84.9%) in patients with SLE and active HCMV infection. 3) Following 14-21 days of inductive treatment with ganciclovir, a total of 26 out of 56 patients were still positive with HCMV-IgM (nine of 19, 47.6%) and pp65 (17/37, 45.9%). Among them, seven cases suffered HCMV relapses in three months with six cases of sustained HCMV-pp65 antigenemia. In conclusion, hematocytopenia, fever and liver dysfunction should remind us to consider HCMV infection. Butterfly erythema, cutaneous vasculitis, arthritis, serositis, central nervous system involvement and renal lesion were relatively characteristic symptoms of lupus activity. HCMV-pp65 is a sensitive indicator to guide antiviral therapy. Induction therapy using ganciclovir with a duration of 14∼21 days is not sufficient, and continued HCMV-pp65 positivity may require prolonged antiviral treatment in lupus patients.
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Affiliation(s)
- J Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China Department of Immunology and Rheumatology, LiHuili Hospital, Medical School of Ningbo University, Ningbo, China
| | - Y Dou
- Department of Clinical Lab, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Zhong
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - J Su
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - D Xu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - F Tang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Y Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - F Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X You
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
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Yu H, Wang Y, Li L, Dou Y, Li X, Chen Y, Zhao Y. Survey and analysis on birth quality influence factors of 300 cases of newborns. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog15282014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Yu HF, Wang YX, Li L, Dou Y, Li XY, Chen YN, Zhao YN. Survey and analysis on birth quality influence factors of 300 cases of newborns. CLIN EXP OBSTET GYN 2014; 41:121-123. [PMID: 24779233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
PURPOSE Little research has been conducted to specifically identify the correlations of birth quality influence factors of newborns and hemoglobin of gravidae and puerperal with birth weight of newborns. To investigate the correlations of birth quality influence factors of newborns and hemoglobin of gravidae and puerperal with birth weight of newborns in order to provide a scientific basis for promoting health ofgravidae and their newborns. MATERIALS AND METHODS Three hundred cases of gravidae and puerpera treated in the present hospital were randomly selected, and questionnaire survey method was used to survey their basic situations. Also, hemoglobin values in different pregnancy stages were detected. According to birth weight of newborns, gravidae were divided into several groups to compare antepartum hemoglobin levels of various groups of gravidae. In addition, logistic regression analysis was carried out for birth quality influence factors of newborns. RESULTS Logistic regression analysis result showed that birth quality influence factors of newborns included age, nutrition situation and pregnancy healthcare education of gravidae and puerpera. In addition, birth weight of newborns was positively related to antepartum hemoglobin level of gravidae (r = 0.746, p < 0.01). CONCLUSIONS It was feasible for promoting smooth delivery of gravidae and puerpera, reducing incidence rate of mother and baby complications and effectively enhancing health situations of newborns to strengthen health monitoring of gravidae and conduct health education intervention.
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Osbourne D, Aruni AW, Dou Y, Perry C, Boskovic DS, Roy F, Fletcher HM. VimA-dependent modulation of the secretome in Porphyromonas gingivalis. Mol Oral Microbiol 2012; 27:420-35. [PMID: 23134608 DOI: 10.1111/j.2041-1014.2012.00661.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The VimA protein of Porphyromonas gingivalis is a multifunctional protein involved in cell surface biogenesis. To further determine if its acetyl coenzyme A (acetyl-CoA) transfer and putative sorting functions can affect the secretome, its role in peptidoglycan biogenesis and effects on the extracellular proteins of P. gingivalis FLL92, a vimA-defective mutant, were evaluated. There were structural and compositional differences in the peptidoglycan of P. gingivalis FLL92 compared with the wild-type strain. Sixty-eight proteins were present only in the extracellular fraction of FLL92. Fifteen proteins present in the extracellular fraction of the parent strain were missing in the vimA-defective mutant. These proteins had protein sorting characteristics that included a C-terminal motif with a common consensus Gly-Gly-CTERM pattern and a polar tail consisting of aromatic amino acid residues. These observations suggest that the VimA protein is likely involved in peptidoglycan synthesis, and corroborates our previous report, which suggests a role in protein sorting.
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Affiliation(s)
- D Osbourne
- Division of Microbiology & Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, CA 92350, USA
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Takasawa K, Takaeda C, Higuchi M, Maeda T, Tomosugi N, Ueda N, Sasaki Y, Ikezoe M, Hagiwara M, Furuhata S, Murakami M, Shimonaka Y, Yamazaki S, Hamahata S, Hamahata S, Oue M, Kuragano T, Furuta M, Yahiro M, Kida A, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Sarafidis P, Rumjon A, Ackland D, Maclaughlin H, Bansal SS, Macdougall IC, Panichi V, Rosati A, Malagnino E, Giusti R, Casani A, Betti G, Conti P, Bernabini G, Bernabini G, Gabrielli C, Caiani D, Scatena A, Migliori M, Pizzarelli F, Mitsopoulos E, Tsiatsiou M, Minasidis I, Kousoula V, Intzevidou E, Passadakis P, Vargemezis V, Tsakiris D, Yahiro M, Kida A, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Kuragano T, Lines SW, Carter AM, Dunn EJ, Wright MJ, Aoyagi R, Miura T, De Paola L, Lombardi G, Coppolino G, Lombardi L, Hasuike Y, Fukumoto H, Kaibe S, Tokuyama M, Kida A, Otaki Y, Kuragano T, Nonoguchi H, Hiwasa M, Miyamoto T, Ohue H, Matsumoto A, Toyoda K, Nakanishi T, Rottembourg J, Emery C, Lafuma A, Wernli J, Zakin L, Mahi L, Borzych-Duzalka D, Bilginer Y, Pape L, Ha IS, Bak M, Chua A, Rees L, Pesle S, Cano F, Urzykowska A, Emre S, Russcasso J, Ramela V, Printza N, White C, Kuzmanovska D, Andrea V, Muller-Wiefel D, Warady B, Schaefer F, Chung JH, Park MK, Kim HL, Shin BC, Fujikawa T, Kuji T, Kakimoto M, Shibata K, Satta H, Nishihara M, Kawata S, Koguchi N, Toya Y, Umemura S, David V, Michel G, Maxime H, Paul L, Sebastien K, Francois V, Kuntsevich V, Dou Y, Thijssen S, Levin NW, Kotanko P, Kim BS, Kim BS, Park WD, Song HC, Kim HG, Kim YO, Woodburn K, Fong KL, Moriya Y, Tagawa Y, Maeda T, Kanda F, Morita N, Tomosugi N, London G, London G, Zaoui P, Covic A, Dellanna F, Goldsmith D, Gesualdo L, Mann J, Combe C, Turner M, Meunzberg M, Macdonald K, Abraham I, Gesualdo L, Combe C, Covic A, Dellanna F, Goldsmith D, London G, Mann J, Zaoui P, Turner M, Meunzberg M, Macdonald K, Abraham I, Rottembourg J, Guerin A, Diaconita M, Apruzzese R, Dou Y, Thijssen S, Kruse A, Ouellet G, Levin NW, Kotanko P, Bond C, Jensen D, Wang S, Pham E, Rubin J, Sika M, Niecestro R, Woodburn K, Fong KL, Sloneker S, Strzemienski P, Solon E, Moriya Y, Tagawa Y, Stamopoulos D, Mpakirtzi N, Grapsa E, Gogola B, Manios E, Afentakis N, Ewer J, Macdougall IC. Renal anaemia - CKD 5D. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs244] [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: 11/13/2022] Open
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