101
|
Li X, Zhao S, Chen K, Hua W, Su Y, Yang J, Liang Z, Xu W, Zhang S. Dose-response association of implantable device-measured physical activity with long-term cardiac death and all-cause mortality in patients at high risk of sudden cardiac death: a cohort study. Int J Behav Nutr Phys Act 2020; 17:119. [PMID: 32957993 PMCID: PMC7507242 DOI: 10.1186/s12966-020-01026-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 09/14/2020] [Indexed: 11/10/2022] Open
Abstract
Background Cardiovascular implantable electronic devices (CIEDs) with physical activity (PA) recording function can continuously and automatically collect patients’ long-term PA data. The dose-response association of implantable cardioverter-defibrillator (ICD) and cardiac resynchronization therapy defibrillator (CRTD)-measured PA with cardiovascular outcomes in patients at high risk of sudden cardiac death (SCD) was investigated. Methods In total, 822 patients fulfilling the inclusion criteria were included and divided into three groups according to baseline PA tertiles: tertile 1 (< 8.04%, n = 274), tertile 2 (8.04–13.24%, n = 274), and tertile 3 (> 13.24%, n = 274). The primary endpoint was cardiac death, the secondary endpoint was all-cause mortality. Results During a mean follow-up of 59.7 ± 22.4 months, cardiac death (18.6% vs 8.8% vs 5.5%, tertiles 1–3, P < 0.001) and all-cause mortality (39.4% vs 20.4% vs 9.9%, tertiles 1–3, P < 0.001) events decreased according to PA tertiles. Compared with patients younger than 60 years old, older patients had a lower average PA level (9.6% vs 12.8%, P < 0.001) but higher rates of cardiac death (13.2% vs 8.1%, P = 0.024) and all-cause mortality (28.4% vs 16.7%, P < 0.001) events. Adjusted multivariate Cox regression analyses showed that a higher tertile of PA was associated with a lower risk of cardiac death (hazard ratio (HR) 0.41, 95% confidence interval (CI): 0.25–0.68, tertile 2 vs tertile 1; HR 0.28, 95% CI: 0.15–0.51, tertile 3 vs tertile 1, Ptrend < 0.001). Similar results were observed for all-cause mortality. The dose-response curve showed an inverse non-linear pattern, and a significant reduction in endpoint risk was observed at the low-moderate PA level. The HR for cardiac death was reduced by half with 12.32% PA (177 min), and the HR for all-cause mortality was reduced by half with 11.92% PA (172 min). Subgroup analysis results indicated that older adults could benefit from PA and the range for achieving optimal benefits might be lower. Conclusions PA monitoring may aid in long-term management of patients at high risk of SCD. More PA will generate better survival benefits, but even low-moderate PA is already good especially for older adults, which is relatively easy to achieve.
Collapse
Affiliation(s)
- Xiaoyao Li
- Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shuang Zhao
- Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Keping Chen
- Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Wei Hua
- Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Yangang Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiefu Yang
- Department of Cardiology, Beijing Hospital, Beijing, China
| | - Zhaoguang Liang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Shu Zhang
- Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China.
| |
Collapse
|
102
|
Zhou B, Zhao S, Tang M, Chen K, Hua W, Su Y, Chen S, Liang Z, Xu W, Li X, Xue X, Sun X, Zhang S. Overweight and obesity as protective factors against mortality in nonischemic cardiomyopathy patients with an implantable cardioverter defibrillator. Clin Cardiol 2020; 43:1435-1442. [PMID: 32936479 PMCID: PMC7724223 DOI: 10.1002/clc.23458] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/20/2020] [Accepted: 08/22/2020] [Indexed: 12/31/2022] Open
Abstract
Background Previous studies have reported inconsistent results on the relationship between body mass index (BMI) and clinical outcomes in implantable cardioverter defibrillator (ICD) patients. Additionally, research on ICD patients with nonischemic cardiomyopathy (NICM) is lacking. Hypothesis This study aimed to investigate the impact of BMI on mortality and ventricular arrhythmias (VAs) in NICM patients with an ICD. Methods This study retrospectively analyzed the data from the Study of Home Monitoring System Safety and Efficacy in Cardiac Implantable Electronic Device‐implanted patients (SUMMIT) in China. Four hundred and eighty NICM patients with an ICD having BMI data were enrolled. Patients were divided into two groups: underweight and normal range group (BMI < 24 kg/m2), overweight and obese group (BMI≥24 kg/m2). The primary endpoint was all‐cause mortality. The secondary endpoint was the first occurrence of VAs requiring appropriate ICD therapy or shock. Results During a median follow‐up of 61 (1‐95) months, 70 patients (14.6%) died, 173 patients (36%) experienced VAs requiring appropriate ICD therapy, and 112 patients (23.3%) were treated with ICD shock. Multivariate Cox regression modeling indicated a decreased mortality risk in the overweight and obese group compared with the underweight and normal range group (hazard ratio = 0.44, 95% confidence interval 0.26‐0.77, P = .003). However, the risk of VAs was similar in both groups in univariate and multivariate Cox models. Conclusions Compared with underweight and normal weight, overweight and obesity are protective against mortality but have only a neutral impact on VAs risk in NICM patients with an ICD.
Collapse
Affiliation(s)
- Bin Zhou
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shuang Zhao
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Min Tang
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keping Chen
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Hua
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yangang Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Silin Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangzhou, China
| | - Zhaoguang Liang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Xiaoyao Li
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaodi Xue
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuerong Sun
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shu Zhang
- Arrhythmia Centre, Fuwai Hospital, National Centre for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
103
|
Wang Q, Ren M, Liu X, Xia H, Chen K. Identification and characterization of novel short-type BmPGRP-S4 from the silkworm, Bombyx mori, involved in innate immunity. ACTA ACUST UNITED AC 2020; 75:13-21. [PMID: 31603862 DOI: 10.1515/znc-2019-0093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/12/2019] [Indexed: 01/19/2023]
Abstract
Peptidoglycan recognition proteins (PGRPs) are pattern recognition receptors that can recognize bacterial peptidoglycans and trigger the innate immune response of insects. Here, we identified and characterized a novel short-type Bombyx mori peptidoglycan recognition proteins short-4 (BmPGRP-S4) in a lepidopteran insect, Bombyx mori. BmPGRP-S4 exhibited a cDNA sequence length of 600 bp, encoding 199 aa with a protein molecular weight of 22 kDa. Multiple sequence alignment revealed that BmPGRP-S4 contains a conserved PGRP domain. Quantitative real-time polymerase chain reaction analysis showed that BmPGRP-S4 is highly expressed in the early developmental stages of silkworm larvae and presents tissue-specific expression in hemocytes. Interestingly, BmPGRP-S4 expression is significantly induced by bacterial infection in the midgut, fat body, and hemocytes. Furthermore, a dual luciferase reporter gene assay revealed that BmPGRP-S4 can activate the expression of the antimicrobial peptide genes lebocin, moricin, cecropin D, cecropin B, and attacin. Taken together, these results suggest that BmPGRP-S4 plays an important role in the innate immune response of silkworms.
Collapse
Affiliation(s)
- Qiang Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu, PR China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Meijia Ren
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Xiaoyong Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Hengchuan Xia
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| |
Collapse
|
104
|
Ning X, Li X, Fan X, Chen K, Hua W, Liu Z, Dai Y, Chen X, Lu M, Zhao S, Zhang S. 3.0 T magnetic resonance imaging scanning on different body regions in patients with pacemakers. J Interv Card Electrophysiol 2020; 61:545-550. [PMID: 32808082 DOI: 10.1007/s10840-020-00854-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/12/2020] [Indexed: 11/28/2022]
Abstract
PURPOSE Magnetic resonance imaging (MRI) at 3.0 T is becoming more common, but there is a lack of sufficient evidence on the safety of a 3.0 T scan in patients with pacemakers. This study aimed to investigate the safety and practical concerns of 3.0 T scans for patients with MR-conditional pacemakers. METHODS Twenty consecutive patients were enrolled. A standardized protocol was developed by cardiologists, pacemaker engineers, and radiologists. Pacemaker interrogation was performed immediately before and after the scan. Scan-related adverse events were documented, and imaging quality was graded as level 1 to 4 by radiologists. RESULTS Twenty-three MRI scans of different body regions (brain = 13, lumbar spine = 4, cervical spine = 2, and heart = 4) were performed, and the average time of a scan was 25 ± 11 min. No significant changes in sensing amplitude (atrial 3.1 ± 1.1 mV vs. 2.9 ± 1.2 mV, P = 0.71; ventricular 9.3 ± 3.5 mV vs. 10.2 ± 3.4 mV, P = 0.46), lead impedances (atrial 647 ± 146 Ω vs. 627 ± 151 Ω, P = 0.7; ventricular: 780 ± 247 Ω vs.711 ± 226 Ω, P = 0.36), or pacing threshold (atrial 0.6 ± 0.2 V/0.4 ms vs. 0.6 ± 0.2 V/0.4 ms, P = 0.71; ventricular 0.7 ± 0.3 V/0.4 ms vs. 0.7 ± 0.2 V/0.4 ms, P = 0.85) were observed pre- and postscan. No adverse events were detected. Image quality review showed grade 1 quality in 16 patients and grade 2 quality in 4 patients with artifacts of pulse generators and leads in cardiac MRI scan and no impact on diagnostic value. CONCLUSION Our initial data indicated that 3.0 T scanning might be feasible under a standardized protocol with good diagnostic imaging quality irrespective of body region in patients with MR-conditional pacemakers.
Collapse
Affiliation(s)
- Xiaohui Ning
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Xiaofei Li
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Xiaohan Fan
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China.
| | - Keping Chen
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Wei Hua
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Zhimin Liu
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Yan Dai
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Xiuyu Chen
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Minjie Lu
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shihua Zhao
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shu Zhang
- Department of Arrhythmia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, A 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| |
Collapse
|
105
|
Lin J, Chen K, Dai Y, Sun Q, Li Y, Jiang Y, Zhou Y, Chen R, Jin Y, Yan L, Zhou X, Cheng A, Zhang X, Gold MR, Zhang S. Bilateral Bundle Branch Area Pacing to Achieve Physiological Conduction System Activation. Circ Arrhythm Electrophysiol 2020; 13:e008267. [DOI: 10.1161/circep.119.008267] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Left bundle branch pacing (LBBP) is a technique for conduction system pacing, but it often results in right bundle branch block morphology on the ECG. This study was designed to assess simultaneous pacing of the left and right bundle branch areas to achieve more synchronous ventricular activation.
Methods:
In symptomatic bradycardia patients, the distal electrode of a bipolar pacing lead was placed at the left bundle branch area via a transventricular-septal approach. This was used to pace the left bundle branch area, while the ring electrode was used to pace the right bundle branch area. Bilateral bundle branch area pacing (BBBP) was achieved by stimulating the cathode and anode in various pacing configurations. QRS duration, delayed right ventricular activation time, left ventricular activation time, and interventricular conduction delay were measured. Pacing stability and short-term safety were assessed at 3-month follow-up.
Results:
BBBP was successfully performed in 22 of 36 patients. Compared with LBBP, BBBP resulted in greater shortening of QRS duration (109.3±7.1 versus 118.4±5.7 ms,
P
<0.001). LBBP resulted in a paced right bundle branch block configuration, with a delayed right ventricular activation time of 115.0±7.5 ms and interventricular conduction delay of 34.0±8.8 ms. BBBP fully resolved the right bundle branch block morphology in 18 patients. In the remaining 4 patients, BBBP partially corrected the right bundle branch block with delayed right ventricular activation time decreasing from 120.5±4.7 ms during LBBP to 106.1±4.2 ms during BBBP (
P
=0.005).
Conclusions:
LBBP results in a relatively narrow QRS complex but with an interventricular activation delay. BBBP can diminish the delayed right ventricular activation, producing more physiological ventricular activation.
Graphic Abstract:
A
graphic abstract
is available for this article.
Collapse
Affiliation(s)
- Jinxuan Lin
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yan Dai
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Qi Sun
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yuqiu Li
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yong Jiang
- State Key Laboratory of Cardiovascular Disease, Department of Echocardiography (Y. Jiang), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yu’an Zhou
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Ruohan Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yuanhao Jin
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Lirong Yan
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xiaohong Zhou
- Medtronic Inc, Cardiac Rhythm Heart Failure Division, Minneapolis, MN (X. Zhou, A.C.)
| | - Alan Cheng
- Medtronic Inc, Cardiac Rhythm Heart Failure Division, Minneapolis, MN (X. Zhou, A.C.)
| | - Xue Zhang
- Medtronic (Shanghai) Ltd, Shanghai, China (X. Zhang)
| | - Michael R. Gold
- Division of Cardiology, Medical University of South Carolina, Charleston (M.R.G.)
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center (J.L., K.C., Y.D., Q.S., Y.L., Y.Z., R.C., Y. Jin, L.Y., S.Z.), Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| |
Collapse
|
106
|
Sun L, Sarath Babu V, Qin Z, Su Y, Liu C, Shi F, Zhao L, Li J, Chen K, Lin L. Snakehead vesiculovirus (SHVV) infection alters striped snakehead (Ophicephalus striatus) cells (SSN-1) glutamine metabolism and apoptosis pathways. Fish Shellfish Immunol 2020; 102:36-46. [PMID: 32289513 DOI: 10.1016/j.fsi.2020.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Snakehead vesiculovirus (SHVV) causes enormous economic losses in snakehead fish (Ophicephalus striatus) culture. Understanding replication mechanisms of virus is considerable significance in preventing and treating viral disease. In our previous studies, we have reported that glutamine starvation could significant inhibit the replication of SHVV. Furthermore, we also showed that SHVV infection could cause apoptosis of striped snakehead fish cells (SSN-1). However, the underlying mechanisms remain enigmatic. To decipher the relationships among the viral infection, glutamine starvation and apoptosis, SSN-1 cells transcriptomic profilings of SSN-1 cells infected with or without SHVV under glutamine deprived condition were analyzed. RNA-seq was used to identify differentially expressed genes (DEGs). Our data revealed that 1215 up-regulated and 226 down-regulated genes at 24 h post-infection were involved in MAPK, apoptosis, RIG-1-like and toll-like receptors pathways and glutamine metabolism. Subsequently, DEGs of glutamine metabolism and apoptosis pathways were selected to validate the sequencing data by quantitative real-time PCR (qRT-PCR). The expression patterns of both transcriptomic data and qRT-PCR were consistent. We observed that lack of glutamine alone could cause mild cellular apoptosis. However, lack of glutamine together with SHVV infection could synergistically enhance cellular apoptosis. When the cells were cultured in complete medium with glutamine, overexpression of glutaminase (GLS), an essential enzyme for glutamine metabolism, could significantly enhance the SHVV replication. While, SHVV replication was decreased in cells when GLS was knocked down by specific siRNA, indicating that glutamine metabolism was essential for viral replication. Furthermore, the expression level of caspase-3 and Bax was significantly decreased in SHVV infected cells with GLS overexpression. By contrast, they were significantly increased in SHVV infected cells with GLS silence by SiRNA, indicating that SHVV infection activated the Bax and caspase-3 pathways to induce apoptosis independent of glutamine. Our results reveal that SHVV replication and starvation of glutamine could synergistically promote the cellular apoptosis, which will pave a new way for developing strategies against the vial infection.
Collapse
Affiliation(s)
- Lindan Sun
- School of Food and Biological Engineering, Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, China; Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - V Sarath Babu
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Zhendong Qin
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Youlu Su
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Chun Liu
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Fei Shi
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Lijuan Zhao
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Jun Li
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China; School of Biological Sciences, Lake Superior State University, Sault Ste. Marie, MI, 49783, USA
| | - Keping Chen
- School of Food and Biological Engineering, Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, China.
| | - Li Lin
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China; School of Biological Sciences, Lake Superior State University, Sault Ste. Marie, MI, 49783, USA.
| |
Collapse
|
107
|
Yuan Y, Huang W, Chen K, Ling E. Beauveria bassiana ribotoxin inhibits insect immunity responses to facilitate infection via host translational blockage. Dev Comp Immunol 2020; 106:103605. [PMID: 31904434 DOI: 10.1016/j.dci.2019.103605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 12/30/2019] [Indexed: 06/10/2023]
Abstract
Entomopathogenic fungi are promising bio-pesticides. To facilitate infection, fungi recruit multiple virulence factors and deploy different molecular strategies to evade host immunity. Fungal ribotoxins are extracellular secreted ribonucleases (RNases) with ribotoxic cytotoxicity and insecticidal activity. However, it remains unclear whether they have further biological functions. Here we show that the entomopathogenic fungus Beauveria bassiana ribotoxin (Rib) contributes to fungal virulence by inhibiting insect host immunity. Gene deletion of Rib (ΔRib) resulted in attenuated fungal virulence during infection. Pathogenesis analysis demonstrated that Rib mainly inhibits insect immunity through modulating the reactive oxygen species (ROS) response, suppressing antimicrobial peptides (AMPs) production and retarding hyphae penetration from insect cuticles. To further confirm this immunosuppressive function, recombinant ribotoxin (rRib) protein was purified and co-injected with living or heat-killed bacteria, bacteria-derived peptidoglycan (PGN) and lipopolysaccharide (LPS) separately, which also significantly inhibited the AMPs production in Drosophila fat bodies. Furthermore, co-injection of rRib with Escherichia coli or Staphylococcus aureus significantly enhanced bacterial pathogenicity and facilitated infection. In addition, rRib injection resulted in a global inhibition of protein expression in different tissues of Drosophila adults. This work identified B. bassiana ribotoxin as a key virulence factor that inhibits insect immunity.
Collapse
Affiliation(s)
- Yi Yuan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu, China; Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China; Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai, 200032, China
| | - Wuren Huang
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai, 200032, China
| | - Keping Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu, China; Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Erjun Ling
- Key Laboratory of Insect Developmental and Evolutionary Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Science, Shanghai, 200032, China; Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100093, China.
| |
Collapse
|
108
|
Zhu F, Li D, Song D, Huo S, Ma S, Lü P, Liu X, Yao Q, Chen K. Glycoproteome in silkworm Bombyx mori and alteration by BmCPV infection. J Proteomics 2020; 222:103802. [PMID: 32360640 PMCID: PMC7194664 DOI: 10.1016/j.jprot.2020.103802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/19/2020] [Accepted: 04/27/2020] [Indexed: 12/01/2022]
Abstract
The biological functions of protein glycosylation have been increasingly recognized but not yet been very well understood, especially in lower organisms. Silkworm as a model lepidopteran insect and important economic insect, has been widely studied in life science, however, the current knowledge on the glycosylation status of its proteome is not satisfactory, and little is known about how pathogenic infections could affect the glycosylation status. This study performed large scale glycosite mapping for the silkworm Bombyx mori P50 strain, and quantitatively compared with that infected with the Bombyx mori cytoplasmic polyhedrosis virus (BmCPV). Some 400 glycoproteins were mapped in the silkworm, including N- and O-glycoproteins. Upon virus infection, the glycosylation levels of 41 N-glycopeptides were significantly changed, some of them belonging to transmembrane glycoproteins. The O-glycosylation profiles were also affected. In addition, 4 BmCPV-encoded viral proteins were found to be glycosylated for the first time, including polyhedrin, P101, VP3, and the NS protein. This study drafted a silkworm protein glycosylation map and underlined the potential impact of virus infection on glycosylation. SIGNIFICANCE: This study reveals the characteristics of the glycoproteome in the silkworm strain P50, and quantitatively compared to that infected by the virus BmCPV, which underlines the impact of virus infection on the alteration of protein glycosylation in invertebrate species. Our findings add to the knowledge of the post translational modifications of this model organism, and also uncovered for the first time the glycosylation status of the viral proteins expressed by BmCPV.
Collapse
Affiliation(s)
- Feifei Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Dong Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Dandan Song
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Shuhao Huo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Peng Lü
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Xiaoyong Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Qin Yao
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| |
Collapse
|
109
|
Abstract
Glycosylation refers to the covalent attachment of sugar residues to a protein or lipid, and the biological importance of this modification has been widely recognized. While glycosylation in mammals is being extensively investigated, lower level animals such as invertebrates have not been adequately interrogated for their glycosylation. The rich diversity of invertebrate species, the increased database of sequenced invertebrate genomes and the time and cost efficiency of raising and experimenting on these species have enabled a handful of the species to become excellent model organisms, which have been successfully used as tools for probing various biologically interesting problems. Investigation on invertebrate glycosylation, especially on model organisms, not only expands the structural and functional knowledgebase, but also can facilitate deeper understanding on the biological functions of glycosylation in higher organisms. Here, we reviewed the research advances in invertebrate glycosylation, including N- and O-glycosylation, glycosphingolipids and glycosaminoglycans. The aspects of glycan biosynthesis, structures and functions are discussed, with a focus on the model organisms Drosophila and Caenorhabditis. Analytical strategies for the glycans and glycoconjugates are also summarized.
Collapse
Affiliation(s)
- Feifei Zhu
- 1 Institute of Life Sciences, Jiangsu University , Zhenjiang 212013 , People's Republic of China.,2 School of Food and Biological Engineering, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| | - Dong Li
- 1 Institute of Life Sciences, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| | - Keping Chen
- 1 Institute of Life Sciences, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| |
Collapse
|
110
|
Ge Q, Chen L, Yuan Y, Liu L, Feng F, Lv P, Ma S, Chen K, Yao Q. Network Pharmacology-Based Dissection of the Anti-diabetic Mechanism of Lobelia chinensis. Front Pharmacol 2020; 11:347. [PMID: 32265717 PMCID: PMC7099657 DOI: 10.3389/fphar.2020.00347] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 03/09/2020] [Indexed: 12/14/2022] Open
Abstract
Diabetes mellitus (DM) is a chronic inflammatory disease, and the rapidly increasing DM is becoming a major problem of global public health. Traditional Chinese medicine (TCM) has a long history of treating diabetes. It has been developed and utilized because of its good efficacy and no toxic side effects. Lobelia chinensis is a traditional whole grass herbal. With the continuous deepening of pharmacological research on TCM, the active ingredients of L. chinensis are continuously revealed, which contained the alkaloids, flavonoids, flavonoid glycosides and amino acids that have the good effects of anti-inflammatory, anti-viral and anti-diabetic. In order to further explore the targets of active ingredients and its anti-diabetic mechanism, a feasible network pharmacology analysis model based on chemical, pharmacokinetic and pharmacological data was developed by network construction method to clarify the anti-diabetic mechanism of L. chinensis. The present study conducted by gas chromatography–mass spectrometer (GC/MS), which identified 208 metabolites of L. chinensis, of which 23 ingredients may have effective pharmacological effects after absorption, distribution, metabolism, and excretion (ADME) screening. Network pharmacological analysis on the active ingredients revealed that 5-hydroxymethylfurfural in L. chinensis affects the insulin resistance signaling pathway by acting on GSK3B, TNF, and MAPK1, acacetin affects the diabetic pathway by acting on INSR, DPP4, and GSK3B, that regulate type 2 diabetes, non-insulin-dependent DM, and inflammatory diseases. These results successfully indicated the potential anti-diabetic mechanism of the active ingredients of L. chinensis.
Collapse
Affiliation(s)
- Qi Ge
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yi Yuan
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China.,School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Lanlan Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Fan Feng
- School of Biological and Food Engineering, Suzhou University, Suzhou, China
| | - Peng Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China.,School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qin Yao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China.,Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
111
|
Tang Q, Chen F, Qi X, Wu P, Chen H, Qiu L, Hu Z, Chen K, Li G. Bombyx mori Rad23 (BmRad23) contributes to the repair of UV-damaged BmNPV. Pestic Biochem Physiol 2020; 164:91-99. [PMID: 32284142 DOI: 10.1016/j.pestbp.2019.12.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 11/25/2019] [Accepted: 12/30/2019] [Indexed: 06/11/2023]
Abstract
Baculoviruses have been developed as long-term and environmentally friendly biopesticides. However, solar ultraviolet radiation can reduce the activity of baculovirus. Radiation sensitive 23 (Rad23) can recognize DNA damage and is involved with nucleotide excision repair (NER). In the current study, BmRad23 was accumulated mainly within the nucleus. Host cell reactivation (HCR) assays have shown that BmRad23 significantly facilitated the expression of UV-damaged mCherry reporter gene. Reverse transcription quantitative PCR (RT-qPCR) result showed that the mRNA expression level of BmRad23 was increased in (Bombyx mori nuclear polyhedrovirus, BmNPV) BmNPV-infected BmN cells. However, the expression of BmRad23 was increased significantly when BmNPV budded viruses (BVs) or BmN cells were irradiated with UV light. Overexpression of BmRad23 promoted the mRNA levels of two UV-induced DNA damage repair genes which were from Bombyx mori and BmNPV, respectively. Meanwhile, the overexpression of BmRad23 in BmN cells was conducive to the proliferation of BmNPV and UV-damaged BmNPV. The recombinant BmNPV BVs expressing BmRad23 showed stronger resistance to UV radiation than the control virus. In conclusion, the results revealed that BmRad23 contributed to the proliferation of BmNPV and the repair of UV-damaged BmNPV, which would provide a reference for the development of efficient baculovirus pesticides against UV radiation.
Collapse
Affiliation(s)
- Qi Tang
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Fangying Chen
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Xinyu Qi
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Peng Wu
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Huiqin Chen
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Lipeng Qiu
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Zhaoyang Hu
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China.
| | - Guohui Li
- Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China.
| |
Collapse
|
112
|
Li G, Qi X, Chen H, Hu Z, Chen F, Deng L, Guo Z, Chen K, Tang Q. The Motif of 76KRKCSK in Bm65 Is an Efficient Nuclear Localization Signal Involved in Production of Infectious Virions. Front Microbiol 2020; 10:2739. [PMID: 32038506 PMCID: PMC6988788 DOI: 10.3389/fmicb.2019.02739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/11/2019] [Indexed: 12/30/2022] Open
Abstract
orf65 (Bm65) of Bombyx mori nucleopolyhedrovirus (BmNPV) codes for a putative 104-amino-acid protein containing three cysteine residues with a putative molecular mass of 12.2 kDa. Previous studies have showed that Bm65 accumulates mainly in nucleus and involved in the repair of UV-damaged DNA. However, the mechanism of nuclear import of Bm65 remains unclear. In this study, a SDS-stable Bm65 tetramer was found in BmNPV-infected BmN cells, and alanine substitutions for the three cysteine residues did not affect the formation of Bm65 tetramer. Additionally, a basic amino acid cluster of the Bm65 protein was identified as an efficient nuclear localization signal (NLS). Firstly, transient expression of GFP-fused truncated Bm65 variants revealed that the 76KRKCSK motif functions as the NLS. This was also confirmed by alanine substitution in the 76KRKCSK motif, which caused attenuated nuclear localization of Bm65. Next, the 76KRKCSK motif-mutated bacmid was generated and the 76KRKCSK motif was also found to be important for nuclear localization of Bm65 in BmNPV-infected conditions. Lastly, analyses of flag-tagged Bm65 expressing bacmids revealed that the mutations in 76KRKCSK motif did not affect the synthesis of Bm65 tetramer, but severely impaired production levels of infectious virions. In conclusion, Bm65 exists in mainly a tetrameric form in virus-infected cells, which may be involved with production levels of infectious virions.
Collapse
Affiliation(s)
- Guohui Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Xinyu Qi
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Huiqing Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Zhaoyang Hu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Fangying Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Liang Deng
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Zhongjian Guo
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qi Tang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
113
|
Ge Q, Feng F, Liu L, Chen L, Lv P, Ma S, Chen K, Yao Q. RNA-Seq analysis of the pathogenesis of STZ-induced male diabetic mouse liver. J Diabetes Complications 2020; 34:107444. [PMID: 31757765 DOI: 10.1016/j.jdiacomp.2019.107444] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 08/31/2019] [Accepted: 09/05/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Diabetes mellitus (DM) is a chronic disease characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both. The liver is a key organ involved in glucose metabolism, and the major target proteins' changes in the pathogenesis are still unknown. METHODS A diabetic mouse model was induced by intraperitoneal injection of streptozotocin (STZ) solution and the RNA-Seq analysis was used to evaluate the transcription differences in the livers of diabetic mice of this study. And then, the differentially expressed genes were validated between a normal mouse group (n = 6) and a diabetic mouse group (n = 6) using quantitative real-time PCR (qRT-PCR) and Western blotting analysis. In addition, we also constructed protein-protein interacting (PPI) networks of up-regulated and down-regulated genes. RESULTS Transcriptome sequencing analysis revealed 370 up-regulated differentially expressed genes and 281 down-regulated differentially expressed genes in the diabetes model. The gene ontology (GO) analysis and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis results showed that the differentially expressed genes were mainly involved in immunity, enzyme activity, metabolism, and steroid synthesis. PPI analysis results indicated that the main 15 core differential proteins (Cyp51a1, Acsl4, Ugt1a1, Stat1, Gsta2, Cbr1, Aldh1a1, Fasn, Ces1, Camk2b, Tap1, Egr1, Sqle, Lpin1, Fabp5) were involved in the pathogenesis of diabetes. The qRT-PCR results showed that expression changes of four genes (Acsl4, Stat1, Gsta2, Fabp5) were in different directions from those of RNA-Seq. Western blotting results indicated that Sqle expression change at the protein level was in opposition direction from qRT-PCR, and we speculated that Sqle may be involved in the post-transcriptional modification process. CONCLUSIONS Our data speculated that the pathogenesis of diabetes may be mediated mainly through steroid biosynthesis, metabolic processes, and immune responses. Further researches on these pathways may provide new targets for the prevention and treatment of diabetes.
Collapse
Affiliation(s)
- Qi Ge
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China; Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Fan Feng
- The Fourth Affiliated Hospital of Jiangsu University, 20# Zhengdong Road, Zhenjiang, Jiangsu 212001, PR China
| | - Lanlan Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Peng Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
| | - Qin Yao
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China; Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China.
| |
Collapse
|
114
|
Wu H, Chen L, Zhu F, Han X, Sun L, Chen K. The Cytotoxicity Effect of Resveratrol: Cell Cycle Arrest and Induced Apoptosis of Breast Cancer 4T1 Cells. Toxins (Basel) 2019; 11:toxins11120731. [PMID: 31847250 PMCID: PMC6950385 DOI: 10.3390/toxins11120731] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/15/2022] Open
Abstract
Resveratrol, a natural polyterpenoid, can scavenge reactive oxygen species in vivo to carry out the functions of antioxidation and antiaging. Resveratrol’s anti-cancer capability has attracted widespread attention, but its molecular mechanism has not been systematically explained. In this study, by comparing the activity of normal cell lines and cancer cell lines after treating with resveratrol, it was found that resveratrol has more significant cytotoxicity in cancer cell lines. Resveratrol could play a toxic role through inducing apoptosis of the cancer cell in a time- and concentration-dependent manner. A total of 330 significantly differential genes were identified through large-scale transcriptome sequencing, among which 103 genes were upregulated and 227 genes were downregulated. Transcriptome and qRT-PCR data proved that a large number of genes related to cell cycle were differentially expressed after the treatment of resveratrol. The changes of cell cycle phases at different time points after treating with resveratrol were further detected, and it was found that the cells were arrested in the S phase because of the percentage of cells in S phase increased and cells in G1/G0 phase decreased. In conclusion, resveratrol can inhibit the proliferation of 4T1 cancer cells by inhibiting cell cycle and inducing apoptosis.
Collapse
Affiliation(s)
| | | | | | | | | | - Keping Chen
- Correspondence: ; Tel./Fax: +86-511-88791923
| |
Collapse
|
115
|
Zhou Y, Zhao S, Chen K, Hua W, Su Y, Chen S, Liang Z, Xu W, Zhang S. Risk of subsequent ventricular arrhythmia is higher in primary prevention patients with implantable cardioverter defibrillator than in secondary prevention patients. BMC Cardiovasc Disord 2019; 19:230. [PMID: 31638918 PMCID: PMC6805511 DOI: 10.1186/s12872-019-1218-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 10/04/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Because of previous ventricular arrhythmia (VA) episodes, patients with implantable cardioverter-defibrillator (ICD) for secondary prevention (SP) are generally considered to have a higher burden of VAs than primary prevention (PP) patients. However, when PP patients experienced VA, the difference in the prognosis of these two patient groups was unknown. METHODS The clinical characteristics and follow-up data of 835 ICD patients (364 SP patients and 471 PP patients) with home monitoring feature were retrospectively analysed. The incidence rate and risk of subsequent VA and all-cause mortality were compared between PP patients after the first appropriate ICD therapy and SP patients. RESULTS During a mean follow-up of 44.72 ± 20.87 months, 210 (44.59%) PP patients underwent appropriate ICD therapy. In the Kaplan-Meier survival analysis, the PP patients after appropriate ICD therapy were more prone to VA recurrence and all-cause mortality than SP patients (P<0.001 for both endpoints). The rate of appropriate ICD therapy and all-cause mortality in PP patients after the first appropriate ICD therapy was significantly higher than that in SP patients (for device therapy, 59.46 vs 20.64 patients per 100 patient-years; incidence rate ratio [IRR] 2.880, 95% confidence interval [CI]: 2.305-3.599; P<0.001; for all-cause mortality, 14.08 vs 5.40 deaths per 100 patient-years; IRR 2.607, 95% CI: 1.884-3.606; P<0.001). After propensity score matching for baseline characteristics, the risk of VA recurrence in PP patients with appropriate ICD therapy was still higher than that in SP patients (41.80 vs 19.10 patients per 100 patient-years; IRR 2.491, 95% CI: 1.889-3.287; P<0.001), but all-cause mortality rates were similar between the two groups (12.61 vs 9.33 deaths per 100 patient-years; IRR 1.352, 95% CI: 0.927-1.972; P = 0.117). CONCLUSIONS Once PP patients undergo appropriate ICD therapy, they will be more prone to VA recurrence and death than SP patients.
Collapse
Affiliation(s)
- You Zhou
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shuang Zhao
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Wei Hua
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Yangang Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Silin Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangzhou, China
| | - Zhaoguang Liang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China.
| |
Collapse
|
116
|
Zhu F, Li D, Song D, Xia H, Liu X, Yao Q, Chen K. Precision mapping of N- and O-glycoproteins in viral resistant and susceptible strains of Bombyx mori. J Invertebr Pathol 2019; 167:107250. [DOI: 10.1016/j.jip.2019.107250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 10/26/2022]
|
117
|
Chen K, Li Y. How to implant left bundle branch pacing lead in routine clinical practice. J Cardiovasc Electrophysiol 2019; 30:2569-2577. [PMID: 31535747 DOI: 10.1111/jce.14190] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/24/2019] [Accepted: 09/09/2019] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Left bundle branch pacing (LBBP) is characterized with a low and stable pacing capture threshold, relatively narrow QRS duration due to fast left ventricular activation, and direct excitation of the diseased left bundle branch. This report aims to describe the methods, procedural skills, and clinical implications of performing LBBP implantation. METHODS AND RESULTS LBBP is achieved by transventricular-septal approach. There are two methods to identify the location for LBBP lead placement: the single-lead method and the dual-lead method. During implantation, the unique transition of the paced QRS morphology and pacing parameter changes are important for guiding the lead - advancement to the left side of the interventricular septum. In our experience, LBBP can be safely performed in most patients requiring pacemaker therapy. CONCLUSION Clinical development of LBBP is at an early but encouraging phase with increasing clinical use, and a standardized procedure with improved delivery tools and pacing leads is needed, as well as long-term efficacy and safety.
Collapse
Affiliation(s)
- Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yuqiu Li
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| |
Collapse
|
118
|
Wang N, Zhu F, Shen M, Qiu L, Tang M, Xia H, Chen L, Yuan Y, Ma S, Chen K. Network pharmacology-based analysis on bioactive anti-diabetic compounds in Potentilla discolor bunge. J Ethnopharmacol 2019; 241:111905. [PMID: 31022565 DOI: 10.1016/j.jep.2019.111905] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/27/2019] [Accepted: 04/20/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Potentilla discolor Bunge (PDB) is a commonly used herbal for alleviating diabetes mellitus and its complications. Although accumulating evidences show the anti-diabetic efficacy of PDB, the vital anti-diabetic compounds and their functional targets remain elusive. AIM OF THE STUDY To investigate the anti-diabetic ingredients and their functional mechanisms in PDB, gas chromatograph-mass spectrometry analysis was performed on PDB extract and 21 were testified as anti-diabetic compounds. MATERIALS AND METHODS Subsequently their potential protein targets were also identified. The bioinformatics analysis was implemented by network pharmacology-based approaches. STRING analysis was performed to reveal enrichment of these target proteins, protein-protein interactions, pathways and related diseases. Cytoscape was used to determine the potential protein targets for these components in PDB, indicating that 21 anti-diabetic compounds in PDB regulate 33 diabetes-related proteins in 28 signal pathways and involve 21 kinds of diabetes-related diseases. Among the 21 potential anti-diabetic components predicted by network analysis, tricetin was firstly experimentally validated at the molecular and cellular level. RESULTS Results indicated that this active small-molecule compound may have beneficial effects on improving glucose uptake. CONCLUSIONS We envisage that network analysis will be useful in screening bioactive compounds of medicinal plants.
Collapse
Affiliation(s)
- Niannian Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Feifei Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Mingxiang Shen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Lipeng Qiu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Min Tang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, NY, 10029, USA.
| | - Hengchuan Xia
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Yi Yuan
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
| |
Collapse
|
119
|
Tang Q, Chen F, Wu P, Qiu L, Chen H, Chen K, Li G. BmNPV infection correlates with the enhancement of the resistance of Bombyx mori cells to UV radiation. Arch Insect Biochem Physiol 2019; 102:e21598. [PMID: 31290186 DOI: 10.1002/arch.21598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/31/2019] [Accepted: 06/18/2019] [Indexed: 06/09/2023]
Abstract
At present, the effect of ultraviolet (UV) radiation on the interaction between Bombyx mori nucleopolyhedrovirus (BmNPV) and host remains unclear. In the current study, UV treatment significantly reduced the activity of BmNPV budded viruses (BVs), and UV-damaged BmN cells were not conducive to BmNPV proliferation. BmNPV infection significantly reduced the viability of host cells, but increased the viability of high-dose UV-treated host cells. Furthermore, the quantitative reverse-transcription PCR (qPCR) results suggested that BmNPV and Bombyx mori might mutually use the same DNA repair proteins for repairing UV-induced damage and BmNPV infection promote the ability of host cells to repair UV-induced damage.
Collapse
Affiliation(s)
- Qi Tang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Fangying Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Peng Wu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Lipeng Qiu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Huiqing Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Guohui Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
120
|
Li Y, Chen K, Dai Y, Li C, Sun Q, Chen R, Yan L, Lin J, Zhang S. Recovery of complete left bundle branch block following heart failure improvement by left bundle branch pacing in a patient. J Cardiovasc Electrophysiol 2019; 30:1714-1717. [PMID: 31206858 DOI: 10.1111/jce.14034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/05/2019] [Accepted: 06/12/2019] [Indexed: 11/27/2022]
Abstract
A 57-year-old male presented with symptomatic systolic heart failure and complete left bundle branch block (LBBB). Left bundle branch pacing corrected LBBB at a low capture threshold (0.5V @0.4ms) with right bundle branch conduction delay and paced QRS morphology changed to near-normal by adjusting AV delay with diminished RBBD. At 1-year follow-up, the patient had a significant improvement in heart failure and LBBB automatically resolved with a rate-dependent pattern. LBBP may be an alternative to conventional cardiac resynchronization therapy with the likelihood of recovery of LBBB. More research is needed to evaluate the potential use of this pacing strategy in patients with LBBB and heart failure.
Collapse
Affiliation(s)
- Yuqiu Li
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yan Dai
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chao Li
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qi Sun
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruohan Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lirong Yan
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jinxuan Lin
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
121
|
Li C, Liu J, Lü P, Ma S, Zhu K, Gao L, Li B, Chen K. Identification, expression and function of myosin heavy chain family genes in Tribolium castaneum. Genomics 2019; 111:719-728. [DOI: 10.1016/j.ygeno.2018.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 02/07/2023]
|
122
|
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers in the world. Circular RNAs (circRNAs) are a new class of endogenous functional non-coding RNAs (ncRNAs), and have been demonstrated to play important roles in the development of HCC. This study aimed to explore the significance of circRNAs in HCC progression. HCC-associated circRNA expression profiles GSE94508 and GSE97332 were downloaded from the Gene Expression Omnibus database (GEO), and 87 differentially expressed circRNAs (DECs) between HCC tissues and paired non-cancer tissues were identified, including 76 up-regulated and 11 down-regulated circRNAs. Gene ontolog (GO) and pathway analyses of the host genes of these DECs suggested that these host genes were enriched in cell adhesion, cytosol, and protein binding, and were associated with tight junction and Wnt signaling pathways. CircRNA-miRNA interaction prediction identified 20 miRNAs that predispose to interact with DECs. Among these, four essential miRNAs, hsa-miR-7-5p, hsa-miR-145-5p, hsa-miR-203a-3p, and hsa-miR-192-5p, were reported to play pivotal roles in HCC progression by targeting multiple genes. Pathway analysis suggested that putative target genes of these essential miRNAs were involved in HCC-associated signaling pathways, such as Wnt, TGF-β, and Ras; whereas protein-protein network (PPI) analysis demonstrated that some validated target genes of these miRNAs, such as PIK3CA, AKT1, MYC, JUN, SMAD4, and SRC, were hub target genes as they have more counts of interacting protein. In the meantime, the deregulation of some DECs was validated in HCC cell line HepG2 compared with normal liver cell line L02 by quantitative real-time polymerase chain reaction (qRT-PCR) and the Sanger sequencing. This study identified a set of DECs in HCC, and provided a comprehensive understanding of the roles of these DECs in HCC progression.
Collapse
Affiliation(s)
- Lipeng Qiu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Tao Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Qi Ge
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Han Xu
- School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, China
| | - Yihang Wu
- Department of Pharmacy, College of Life Sciences, China Jiliang University, Hangzhou 310018, Zhejiang, China
| | - Qi Tang
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, Jiangsu, China
| |
Collapse
|
123
|
Zhou Y, Zhao S, Chen K, Hua W, Zhang S. Predictive value of gamma-glutamyltransferase for ventricular arrhythmias and cardiovascular mortality in implantable cardioverter-defibrillator patients. BMC Cardiovasc Disord 2019; 19:129. [PMID: 31146684 PMCID: PMC6542048 DOI: 10.1186/s12872-019-1114-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 05/21/2019] [Indexed: 11/10/2022] Open
Abstract
Background Gamma-glutamyltransferase (GGT) is a new predictor of cardiovascular diseases. In this study, we aimed to determine its association with ventricular arrhythmias (VAs) in implantable cardioverter-defibrillator (ICD) patients. Methods One hundred and forty patients implanted with ICD or cardiac resynchronization therapy defibrillator with home monitoring were studied retrospectively. The primary endpoint was appropriate ICD treatment of VAs, secondary endpoint was cardiac death. Results During a mean follow-up period of 44 ± 17 months, 78 patients (55.7%) experienced VAs, 50 patients (35.7%) were treated with appropriate ICD shocks and 16 patients (11.4%) died due to cardiovascular diseases. GGT was positively correlated with high sensitivity C reactive protein (r = 0.482, P < 0.001), left ventricular end-diastolic dimension (r = 0.175, P = 0.039), New York Heart Association class (r = 0.199, P = 0.018), fasting blood glucose (r = 0.233, P = 0.006) and negatively with left ventricular ejection fraction (r = − 0.181, P = 0.032) and high-density lipoprotein (r = − 0.313, P < 0.001). Based on receiver operating characteristics curve, the cut-off value of GGT = 56 U/L was identified to predict VAs. In Kaplan-Meier survival analysis, GGT ≥56 U/L was associated with increased VAs (P<0.001), ICD shock events (P = 0.006) and cardiovascular mortality (P = 0.003). In multivariate COX regression models, GGT ≥56 U/L was an independent risk factor for VAs (HR 2.253, 95%CI:1.383–3.671, P = 0.001), ICD shocks (HR 2.256, 95%CI:1.219–4.176, P = 0.010) and cardiac death (HR 3.555, 95%CI:1.215–10.404, P = 0.021). Conclusions In this ICD population, GGT ≥56 U/L was independently associated with VAs and cardiac death.
Collapse
Affiliation(s)
- You Zhou
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shuang Zhao
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Wei Hua
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China.
| |
Collapse
|
124
|
Chen L, Meng X, Gu J, Fan W, Abdlli N, Peprah FA, Wang N, Zhu F, Lü P, Ma S, Chen K. Silver nanoparticle toxicity in silkworms: Omics technologies for a mechanistic understanding. Ecotoxicol Environ Saf 2019; 172:388-395. [PMID: 30731270 DOI: 10.1016/j.ecoenv.2019.01.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 11/20/2018] [Revised: 01/09/2019] [Accepted: 01/12/2019] [Indexed: 06/09/2023]
Abstract
The widespread use of silver nanoparticles (AgNPs) has raised public concern due to their potential toxic effects on humans and the environment. Although some studies have evaluated the toxicity of nanomaterials in vertebrates, studies on their hazardous effects on insects are limited. Here we focused on different concentrations of AgNPs to silkworms, a promising model organism, to evaluate their toxic effects by omics analysis. After the silkworms were fed with 100 mg L-1 AgNPs, transcriptomics analysis showed differential expression of 43 genes: 39 upregulated and 4 downregulated. These differentially expressed genes (DEGs) were involved in the digestion process, various metabolic pathways, transmembrane transport and energy synthesis. Proteomic results for silkworms fed with 400 mg L-1 AgNPs revealed 14 significantly differentially expressed proteins: 11 downregulated and 3 upregulated. Reverse transcription-polymerase chain reaction (RT-PCR) results showed that the expression levels of eight proteins were similar to the transcription levels of their corresponding genes. As the AgNPs concentration was increased, the expression of digestive enzymes was downregulated, which damaged the silkworm tissue and suppressed the activity of the enzyme superoxide dismutase and the protein HSP 1, causing oxidative stress and the production of reactive oxygen species, which had toxic effects on the silkworm digestive system. Histopathological results showed that treatment with 400 mg L-1 AgNPs destroyed the basal lamina and the columnar cells, caused adverse effects on tissues and had the potential to induce harmful effects on the digestive system. The data presented herein provide valuable information on the hazards and risks of nanoparticle contamination. Main finding: AgNPs would downregulate some digestive enzymes, damage the tissue of midgut in silkworm, meantime induce the accumulation of reactive oxygen species which may cause oxidative stress.
Collapse
Affiliation(s)
- Liang Chen
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Xu Meng
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Jie Gu
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Weiqiang Fan
- School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China.
| | - Nouara Abdlli
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Frank Addai Peprah
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Niannian Wang
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Feifei Zhu
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Peng Lü
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, 212013 Zhenjiang, China.
| |
Collapse
|
125
|
Zhou Y, Zhao S, Chen K, Hua W, Su Y, Chen S, Liang Z, Xu W, Zhang S. Predictive value of rapid-rate non-sustained ventricular tachycardia in the occurrence of appropriate implantable cardioverter-defibrillator therapy. J Interv Card Electrophysiol 2019; 57:473-480. [PMID: 31073687 DOI: 10.1007/s10840-019-00557-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 04/25/2019] [Indexed: 12/20/2022]
Abstract
PURPOSE Rapid-rate non-sustained ventricular tachycardia (RR-NSVT) that meets detection criteria but terminates itself before the delivery of implantable cardioverter-defibrillator (ICD) therapy is not rare in routine ICD interrogation. Whether sustained ventricular tachycardia/fibrillation will occur in a short time after RR-NSVT has not been fully elucidated. METHODS Clinical features and follow-up data of 828 ICD patients with home monitoring were retrospectively collected. RR-NSVT characteristics and time interval between the first episode of RR-NSVT and subsequent appropriate ICD therapy were analyzed. RESULTS During a mean follow-up of 44.75 ± 20.87 months, 335 episodes of RR-NSVT were documented in 145 patients. A total of 119 patients had both RR-NSVT and appropriate ICD therapy. In multivariate COX regression models, RR-NSVT was an independent predictor of appropriate ICD therapy (HR 7.599, 95%CI 5.926-9.745, P < 0.001), appropriate shock (HR 6.222, 95%CI 4.667-8.294, P < 0.001), and all-cause mortality (HR 2.156, 95%CI 1.499-3.099, P < 0.001). Appropriate ICD therapy was administered after the first RR-NSVT episode in 101 patients, with a median interval of 21 days. Compared to RR-NSVT with appropriate ICD therapy occurring beyond 21 days, RR-NSVT within 21 days prior to appropriate ICD therapy had a longer median duration time (14 s vs. 12 s, P = 0.013), but without significant difference in mean RR interval at initial detection and mean RR interval after episode termination. CONCLUSIONS Rapid-rate non-sustained VT was an independent predictor of appropriate ICD therapy and all-cause mortality. The presence of RR-NSVT should be considered a possible herald of more serious cardiac events in ICD patients.
Collapse
Affiliation(s)
- You Zhou
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Shuang Zhao
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Wei Hua
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China
| | - Yangang Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Silin Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangzhou, China
| | - Zhaoguang Liang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Wei Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, 167 Bei Li Shi Road, Xicheng District, Beijing, 100037, China.
| |
Collapse
|
126
|
Lü P, He Y, Lin F, Pan Y, Yu Q, Guo Z, Li C, Wang H, Yao Q, Fu Y, Chen K. Rapid detection of Bombyx mori bidensovirus by loop-mediated isothermal amplification based lateral flow dipstick assay for field applications. J Invertebr Pathol 2019; 163:75-81. [PMID: 30858087 DOI: 10.1016/j.jip.2019.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 03/05/2019] [Accepted: 03/08/2019] [Indexed: 01/06/2023]
Abstract
Bombyx mori bidensovirus (BmBDV), is the only bipartite single-stranded DNA (ssDNA) insect virus reported to date. BmBDV causes fatal flacherie disease in silkworm, resulting in large economic losses to sericulture. We developed a loop-mediated isothermal amplification with lateral flow dipstick (LAMP-LFD) method that can successfully and rapidly detect BmBDV DNA with a low limit of detection (5 fg, 400 copies of the BmBDV genome). The method was evaluated and improved for direct field diagnosis using silkworm faeces. In the field, the actual limit of detection was ∼50 fg (4000 copies of the BmBDV genome). The results demonstrated that, compared with traditional methods for BmBDV detection, our new LAMP-LFD method was much more rapid, sensitive and cost-effective, with less dependence on equipment, making it easier to use. The method has potential to be translated into a new diagnostic product for field applications in the sericulture industry.
Collapse
Affiliation(s)
- Peng Lü
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China; Guangdong Silda Pupa and Silk Inc., Shaoguan, China.
| | - Yaling He
- Collage of Life Science, Fudan University, Shanghai 200032, China; Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.
| | - Feng Lin
- Zhejiang Insitute of Freshwater Fisheries, Huzhou 313001, China
| | - Ye Pan
- Laboratory Animal Research Center, Jiangsu University, Zhenjiang 212013, China.
| | - Qian Yu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Zhongjian Guo
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Chengjun Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Huiying Wang
- Jiangsu Well Biotechnology Co., Ltd., Changzhou 213149, China.
| | - Qin Yao
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Yan Fu
- Anhui Microanaly Gene Co., Ltd., Hefei 230601, China.
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| |
Collapse
|
127
|
Li C, Sun L, Lin H, Qin Z, Tu J, Li J, Chen K, Babu V S, Lin L. Glutamine starvation inhibits snakehead vesiculovirus replication via inducing autophagy associated with the disturbance of endogenous glutathione pool. Fish Shellfish Immunol 2019; 86:1044-1052. [PMID: 30590160 DOI: 10.1016/j.fsi.2018.12.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 11/18/2018] [Revised: 12/15/2018] [Accepted: 12/21/2018] [Indexed: 06/09/2023]
Abstract
Autophagy is a degradation cellular process which also plays an important role in virus infection. Glutamine is an essential substrate for the synthesis of glutathione which is the most abundant thiol-containing compound within the cells and plays a key role in the antioxidant defense and intracellular signaling. There is an endogenous cellular glutathione pool which consists of two forms of glutathione, i.e. the reduced form (GSH) and the oxidized form (GSSG). GSH serves as an intracellular antioxidant to maintain cellular redox homeostasis by scavenging free radicals and other reactive oxygen species (ROS) which can lead to autophagy. Under physiological conditions, the concentration of GSSG is only about 1% of total glutathione, while stress condition can result in a transient increase of GSSG. In our previous report, we showed that the replication of snakehead fish vesiculovirus (SHVV) was significant inhibited in SSN-1 cells cultured in the glutamine-starvation medium, however the underlying mechanism remains enigmatic. Here, we revealed that the addition of L-Buthionine-sulfoximine (BSO), a specific inhibitor of the GSH synthesis, could decrease the γ-glutamate-cysteine ligase (GCL) activity and GSH levels, resulting in autophagy and significantly inhibition of the replication of SHVV in SSN-1 cells cultured in the complete medium. On the other hand, the replication of SHVV was rescued and the autophagy was inhibited in the SSN-1 cells cultured in the glutamine-starvation medium supplemented with additional GSH. Furthermore, the inhibition of the synthesis of GSH had not significantly affected the generation of reactive oxygen species (ROS). However, it significantly decreased level of GSH and enhanced the level of GSSG, resulting in the decrease of the value of GSH/GSSG, indicating that it promoted the cellular oxidative stress. Overall, the present study demonstrated that glutamine starvation impaired the replication of SHVV in SSN-1 cells via inducing autophagy associated with the disturbance of the endogenous glutathione pool.
Collapse
Affiliation(s)
- Cheng Li
- Department of Core Facility, Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, Guangdong Provincial Key Laboratory of Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Lindan Sun
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Hanzuo Lin
- Faculty of Arts, University of British Columbia, Vancouver, British Columbia, V6T1W9, Canada
| | - Zhendong Qin
- Department of Core Facility, Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, Guangdong Provincial Key Laboratory of Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Jiagang Tu
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Jun Li
- Department of Core Facility, Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, Guangdong Provincial Key Laboratory of Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China; School of Biological Sciences, Lake Superior State University, Sault Ste. Marie, MI, 49783, USA; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, 212000, China
| | - Sarath Babu V
- Department of Core Facility, Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, Guangdong Provincial Key Laboratory of Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China.
| | - Li Lin
- Department of Core Facility, Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, Guangdong Provincial Key Laboratory of Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China; Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, PR China.
| |
Collapse
|
128
|
Chen K, Xu W, Yang C. Comparison of Indirect Immunofluorescence and Passive Particle Agglutination for the Detection of Mycoplasma Pneumoniae Antibodies. Clin Lab 2019; 65. [PMID: 30868867 DOI: 10.7754/clin.lab.2018.180901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Mycoplasma pneumoniae (MP) is the most predominant pathogen causing pneumonia. The present study compares two serological assays, the indirect immunofluorescence assay (IFA) and the passive particle agglutination assay (PPA), in order to assist clinicians in selecting accurate diagnosis methods. METHODS Sera from 127 patients suffering from mycoplasma pneumonia and 76 from the healthy group were analyzed simultaneously by PPA and IFA. Receiver operating characteristic analyses were performed to evaluate the detection value of PPA and IFA for mycoplasma pneumoniae. The kappa coefficient was analyzed to evaluate the agreement between the IFA and PPA assay. RESULTS The AUC of PPA and IFA was more than 0.70, suggesting both assays were acceptable in clinical efficacy for detecting mycoplasma pneumoniae. When ± 1:40 antibody titers were interpreted as negative, PPA showed the highest specificity, Youden index, and AUC (86.84%, 65.58%, and 0.828, respectively), and the kappa coefficient between PPA and IFA was 0.360. CONCLUSIONS IFA and PPA assays have advantages and disadvantages in the detection of MP antibodies. MP anti-bodies ± 1:40 antibody titers should be interpreted as negative to improve PPA detection abilities, and the consistency of the two methods was regular agreement. Clinicians should detect MP antibodies simultaneously with two methods or analyze paired samples with one method for diagnosing whether or not MP infection is present.
Collapse
|
129
|
Wang Q, Ren M, Liu X, Xia H, Chen K. Peptidoglycan recognition proteins in insect immunity. Mol Immunol 2018; 106:69-76. [PMID: 30590209 DOI: 10.1016/j.molimm.2018.12.021] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/05/2018] [Accepted: 12/20/2018] [Indexed: 12/22/2022]
Abstract
Insects lack an acquired immune system and rely solely on the innate immune system to combat microbial infection. The innate immunity of insects mainly depends on the interaction between the host's pattern recognition receptor (PRR) and pathogen-associated molecular pattern (PAMP). The peptidoglycan recognition proteins (PGRPs) family is the most important pattern recognition receptor (PRR) for insects. It can recognize the main component of the cell wall of the pathogenic microorganism, peptidoglycan (PGN), and plays an important role in the innate immunity of insects. In this paper, the structure, classification, and function of PGRPs is summarized, and the role of PGRPs in the innate immunity of insects is also discussed.
Collapse
Affiliation(s)
- Qiang Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu, PR China; Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, PR China
| | - Meijia Ren
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, PR China
| | - Xiaoyong Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, PR China
| | - Hengchuan Xia
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, PR China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, PR China.
| |
Collapse
|
130
|
Wang N, Zhu F, Chen L, Chen K. Proteomics, metabolomics and metagenomics for type 2 diabetes and its complications. Life Sci 2018; 212:194-202. [DOI: 10.1016/j.lfs.2018.09.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/18/2018] [Accepted: 09/18/2018] [Indexed: 02/08/2023]
|
131
|
Chen K, Cao F, Liang S, Wang J, Tian C. Front Cover: Cover Image, Volume 67, Issue 11. POLYM INT 2018. [DOI: 10.1002/pi.5714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Keping Chen
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Fen Cao
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Shuen Liang
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Jianhua Wang
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Chunrong Tian
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| |
Collapse
|
132
|
Li C, Lu Y, Ma S, Lü P, Li B, Chen K. Crinkled employs wingless pathway for wing development in Tribolium castaneum. Arch Insect Biochem Physiol 2018; 99:e21496. [PMID: 29984841 DOI: 10.1002/arch.21496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Crinkled is associated with embryonic denticle formation and auditory organ development in Drosophila melanogaster. However, the functions of Crinkled have not been fully investigated. Additionally, the genes that participate in the Crinkled pathway are unknown. Phylogenetic analysis indicates that crinkled exhibits a one-to-one orthologous relationship in insects. In Tribolium castaneum, the crinkled gene is 6,498 bp in length and consists of six exons. Crinkled expression peaked during two phases in Tribolium: late embryonic and pupal stages. High levels of crinkled mRNA were detected in the fat body, head, epidermis, ovary, and accessory gland of late adults. Knockdown of crinkled using RNA interference (RNAi) severely affected wing morphogenesis in T. castaneum. We further showed that crinkled silencing reduced forked expression through wingless and shaven-baby, and RNAi of forked phenocopied the effects of crinkled knockdown in T. castaneum. This study investigated the development role of crinkled in postembryonic stages and indicated that forked mediates the functions of crinkled during wing morphogenesis in T. castaneum.
Collapse
Affiliation(s)
- Chengjun Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yaoyao Lu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Peng Lü
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Bin Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
133
|
Li Z, Zhao S, Chen K, Su Y, Hua W, Chen S, Liang Z, Xu W, Dai Y, Fan X, Chen R, Zhang S. Prognostic significance of frequent premature ventricular complex early after implantation among patients with implantable cardioverter defibrillator. J Electrocardiol 2018; 51:898-905. [PMID: 30177337 DOI: 10.1016/j.jelectrocard.2018.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/31/2018] [Accepted: 06/04/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND Premature ventricular complex (PVC) was mainly studied by 24-hour Holter in previous studies. However, the value of long-term Home Monitoring of PVC burden early after ICD implantation is unknown. METHODS The data of 416 patients with ICD were analyzed. The percentage of days with frequent PVC (≥10/h) within 30th-90th days was calculated as the continuous frequent PVC (CfPVC) percentage. ROC curve of CfPVC percentages was plotted. Kaplan-Meier survival and Cox regression were used to assess the cumulative risks. RESULTS Based on ROC curves, the cut-off value for the CfPVC percentage was 40%. According to Kaplan-Meier analysis and multivariate Cox regression analysis, CfPVC percentage ≥40% was an independent predictor of higher incidences of VAEs, appropriate ATP, appropriate shocks, and cardiac death. CONCLUSION A long-term continuous burden of frequent PVC with CfPVC percentage ≥40% can be a predictor of future VAEs, appropriate ATP, appropriate shocks and cardiac death in ICD recipients.
Collapse
Affiliation(s)
- Zeyi Li
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Shuang Zhao
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Yangang Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wei Hua
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Silin Chen
- Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangzhou 510080, China
| | - Zhaoguang Liang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin 150081, China
| | - Wei Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing 210008, China
| | - Yan Dai
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Xiaohan Fan
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Ruohan Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
| |
Collapse
|
134
|
Pan Y, Lü P, Zhu F, Li C, He Y, Chen K. Dietary restriction alters the fatbody transcriptome during immune responses in Bombyx mori. Comp Biochem Physiol B Biochem Mol Biol 2018; 223:50-57. [DOI: 10.1016/j.cbpb.2018.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/28/2018] [Accepted: 06/19/2018] [Indexed: 01/15/2023]
|
135
|
Chen K, Gao T, Bai Z, Yuan Z. Circulating APP, NCAM and Aβ serve as biomarkers for Alzheimer's disease. Brain Res 2018; 1699:117-120. [PMID: 30118716 DOI: 10.1016/j.brainres.2018.08.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 05/18/2018] [Revised: 07/26/2018] [Accepted: 08/13/2018] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD) is the most common neurodegenerative disease and the early diagnosis and intervention are important for valid treatment of AD. However, there are few biomarkers for the diagnosis and monitoring of AD. In the present study, circulating APP, NCAM, Aβ40, and Aβ42 were measured in order to identify which marker or combination of markers could be useful, cost-effective and noninvasive biomarkers for diagnosing and continuously monitoring AD. The results showed that circulating APP, NCAM, Aβ40, and Aβ42 were different between the AD group and the control group. Importantly, the combination of the four biomarkers had the highest AUC (0.997) with the highest sensitivity (98.5). Therefore, circulating APP, NCAM, Aβ40, and Aβ42 can be used as desirable biomarkers for AD diagnosis and monitoring.
Collapse
Affiliation(s)
- Keping Chen
- Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China.
| | - Tianli Gao
- Zhongda Hospital, School of Medicine, Southeast University, Nanjing 210009, China
| | - Zhimao Bai
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, School of Public Health, Southeast University, Nanjing 210009, China
| | - Zuanning Yuan
- Van Andel Research Institute, Grand Rapids, MI 49503, USA
| |
Collapse
|
136
|
Wang N, Zhang S, Zhu F, Yang Y, Chen L, Lü P, Yu L, Chen K. Proteomic Study on the New Potential Mechanism and Biomarkers of Diabetes. Proteomics Clin Appl 2018; 13:e1800043. [DOI: 10.1002/prca.201800043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 07/05/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Niannian Wang
- Institute of Life SciencesJiangsu University Zhenjiang 212000 Jiangsu China
| | - Shu Zhang
- School of Food and Biological EngineeringJiangsu University Zhenjiang 212000 Jiangsu China
| | - Feifei Zhu
- Institute of Life SciencesJiangsu University Zhenjiang 212000 Jiangsu China
| | - Yanhua Yang
- Institute of Life SciencesJiangsu University Zhenjiang 212000 Jiangsu China
| | - Liang Chen
- Institute of Life SciencesJiangsu University Zhenjiang 212000 Jiangsu China
| | - Peng Lü
- Institute of Life SciencesJiangsu University Zhenjiang 212000 Jiangsu China
| | - Li Yu
- Affiliated Hospital of Jiangsu University Zhenjiang 212000 Jiangsu China
| | - Keping Chen
- Institute of Life SciencesJiangsu University Zhenjiang 212000 Jiangsu China
| |
Collapse
|
137
|
Chen K, Cao F, Liang S, Wang J, Tian C. Preparation of poly(ethylene oxide) brush-grafted multiwall carbon nanotubes and their effect on morphology and mechanical properties of rigid polyurethane foam. POLYM INT 2018. [DOI: 10.1002/pi.5676] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Keping Chen
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Fen Cao
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Shuen Liang
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Jianhua Wang
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| | - Chunrong Tian
- Institute of Chemical Materials, China Academy of Engineering Physics; Mianyang People's Republic of China
| |
Collapse
|
138
|
Ge Q, Zhang S, Chen L, Tang M, Liu L, Kang M, Gao L, Ma S, Yang Y, Lv P, Kong M, Yao Q, Feng F, Chen K. Mulberry Leaf Regulates Differentially Expressed Genes in Diabetic Mice Liver Based on RNA-Seq Analysis. Front Physiol 2018. [PMID: 30131712 DOI: 10.3389/fphys.2018.01051/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The pathogenesis of diabetes mellitus is a complicated process involving much gene regulation. The molecular mechanism of mulberry (Morus alba L.) leaf in the treatment of diabetes is not fully understood. In this study, we used the Illumina HiSeq™ 2,500 platform to explore the liver transcriptome of normal mice, STZ-induced diabetic mice, and mulberry leaf-treated diabetic mice, and we obtained 52,542,956, 52,626,414, and 52,780,196 clean reads, respectively. We identified differentially expressed genes (DEGs) during the pathogenesis of diabetes in mice. The functional properties of DEGs were characterized by comparison with the GO and KEGG databases, and the results show that DEGs are mainly involved in the metabolic pathway. qRT-PCR was used to analyse 27 differential genes involved in liver expression in different groups of diabetic mice. Among the DEGs, the expression of Scube1, Spns3, Ly6a, Igf2, and other genes between the control (C) and diabetic control (DC) groups was significantly upregulated; the expression of Grb10, Mup2, and Fasn was significantly downregulated; the expression of the Sqle, Lss, and Irs2 genes between the C group and diabetic group treated with mulberry (DD) was significantly upregulated; the expression of Fabp2, Ly6a, and Grb10 was significantly downregulated; and the expression of Sqle and Lss was significantly upregulated in the DC and DD groups, but Tap1, Igf2, and Spns3 were significantly downregulated. The results of Western blot validation showed that dynamic changes in proteins, such as IGF2, Ly6a, Grb10, and UBD, occurred to regulate the incidence of diabetes by influencing the insulin receptor substrate (IRS) signaling pathway.
Collapse
Affiliation(s)
- Qi Ge
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Shu Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Min Tang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, NY, United States
| | - Lanlan Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Mengna Kang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Lu Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yanhua Yang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Peng Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Ming Kong
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qin Yao
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Fan Feng
- The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
139
|
Ge Q, Zhang S, Chen L, Tang M, Liu L, Kang M, Gao L, Ma S, Yang Y, Lv P, Kong M, Yao Q, Feng F, Chen K. Mulberry Leaf Regulates Differentially Expressed Genes in Diabetic Mice Liver Based on RNA-Seq Analysis. Front Physiol 2018; 9:1051. [PMID: 30131712 PMCID: PMC6090096 DOI: 10.3389/fphys.2018.01051] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/16/2018] [Indexed: 12/25/2022] Open
Abstract
The pathogenesis of diabetes mellitus is a complicated process involving much gene regulation. The molecular mechanism of mulberry (Morus alba L.) leaf in the treatment of diabetes is not fully understood. In this study, we used the Illumina HiSeq™ 2,500 platform to explore the liver transcriptome of normal mice, STZ-induced diabetic mice, and mulberry leaf-treated diabetic mice, and we obtained 52,542,956, 52,626,414, and 52,780,196 clean reads, respectively. We identified differentially expressed genes (DEGs) during the pathogenesis of diabetes in mice. The functional properties of DEGs were characterized by comparison with the GO and KEGG databases, and the results show that DEGs are mainly involved in the metabolic pathway. qRT-PCR was used to analyse 27 differential genes involved in liver expression in different groups of diabetic mice. Among the DEGs, the expression of Scube1, Spns3, Ly6a, Igf2, and other genes between the control (C) and diabetic control (DC) groups was significantly upregulated; the expression of Grb10, Mup2, and Fasn was significantly downregulated; the expression of the Sqle, Lss, and Irs2 genes between the C group and diabetic group treated with mulberry (DD) was significantly upregulated; the expression of Fabp2, Ly6a, and Grb10 was significantly downregulated; and the expression of Sqle and Lss was significantly upregulated in the DC and DD groups, but Tap1, Igf2, and Spns3 were significantly downregulated. The results of Western blot validation showed that dynamic changes in proteins, such as IGF2, Ly6a, Grb10, and UBD, occurred to regulate the incidence of diabetes by influencing the insulin receptor substrate (IRS) signaling pathway.
Collapse
Affiliation(s)
- Qi Ge
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Shu Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Min Tang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, NY, United States
| | - Lanlan Liu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Mengna Kang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Lu Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yanhua Yang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Peng Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Ming Kong
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qin Yao
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Fan Feng
- The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
140
|
Ge Q, Chen L, Tang M, Zhang S, Liu L, Gao L, Ma S, Kong M, Yao Q, Feng F, Chen K. Analysis of mulberry leaf components in the treatment of diabetes using network pharmacology. Eur J Pharmacol 2018; 833:50-62. [DOI: 10.1016/j.ejphar.2018.05.021] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/02/2018] [Accepted: 05/17/2018] [Indexed: 12/28/2022]
|
141
|
Qiu L, Wang T, Tang Q, Li G, Wu P, Chen K. Long Non-coding RNAs: Regulators of Viral Infection and the Interferon Antiviral Response. Front Microbiol 2018; 9:1621. [PMID: 30072977 PMCID: PMC6060254 DOI: 10.3389/fmicb.2018.01621] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [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: 05/15/2018] [Accepted: 06/28/2018] [Indexed: 11/13/2022] Open
Abstract
Interferons (IFNs) are a family of cytokines providing a robust first line of host innate defense against pathogenic infection, and have now been part of the standard treatment for viral infection. However, IFN based therapy can best be described as modestly effective. Long non-coding RNAs (lncRNAs) are a novel class of non-protein-coding RNAs that are capable of regulating gene expression at different levels, including chromatin, transcription, post-transcription, and translation. Recently, lncRNAs are found to be deregulated upon viral infection or IFN treatment, and some of them can modulate viral infection in an IFN-dependent or -independent manner. Due to the crucial roles of lncRNAs in viral infection and the IFN antiviral response, the modulation of specific lncRNAs may be involved to increase the IFN antiviral response and improve the clinical result of IFN-based therapy. In this review, we summarize lncRNAs that are deregulated by viral infection, with special focus on the functions and underlying mechanisms of some essential lncRNAs, and discuss their roles in viral infection and the antiviral response of IFN.
Collapse
Affiliation(s)
- Lipeng Qiu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Tao Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Qi Tang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Guohui Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Peng Wu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
142
|
Kong M, Zuo H, Zhu F, Hu Z, Chen L, Yang Y, Lv P, Yao Q, Chen K. The interaction between baculoviruses and their insect hosts. Dev Comp Immunol 2018; 83:114-123. [PMID: 29408049 DOI: 10.1016/j.dci.2018.01.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 01/26/2018] [Accepted: 01/26/2018] [Indexed: 06/07/2023]
Abstract
Baculoviruses are double-stranded circular DNA viruses that infect arthropods via the midgut. Because of their superiority as eukaryotic expression systems and their importance as biopesticides, extensive research on the functions of baculovirus genes as well as on the host response to baculovirus infection has been carried out, including transcriptomic and proteomic analyses of the midgut. The morphological and cellular changes caused by baculovirus infection are also important to better understand the infection pathway. Thanks to these previous studies, we now have a clearer picture of the mechanisms of action of the virus and of host immunity. In this paper, we systematically reviewed studies on the interaction between baculoviruses and their insect hosts. By better understanding these interactions, baculoviruses can be developed for use as more efficient biopesticides to improve agricultural development in the future.
Collapse
Affiliation(s)
- Ming Kong
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Huan Zuo
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Feifei Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Zhaoyang Hu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yanhua Yang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Peng Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Qin Yao
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| |
Collapse
|
143
|
Zuo H, Chen L, Kong M, Yang Y, Lü P, Qiu L, Wang Q, Ma S, Chen K. The toxic effect of sodium fluoride on Spodoptera frugiperda 9 cells and differential protein analysis following NaF treatment of cells. Environ Pollut 2018; 236:313-323. [PMID: 29414353 DOI: 10.1016/j.envpol.2018.01.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 06/08/2023]
Abstract
Accumulation of excess fluoride has a destructive effect on the environment, endangering human health, affecting organism growth and development, and leading to damage to the biological chain, thereby affecting ecological environment balance. In recent years, numerous studies focused on the molecular mechanisms associated with fluoride toxicity; however, fluoride-toxicity mechanisms in insect cells remain unclear. This study explored the toxic impact of sodium fluoride (NaF) on Spodoptera frugiperda 9 (Sf9) insect cells. High concentrations of NaF (10-4 M, 10-3 M and 10-2 M) resulted in cell enlargement, cell membrane blurring and breakage, and release of cellular contents. Dose-response curves indicated that NaF-specific inhibition rates on Sf9-cell activity increased along with increases in NaF concentration, with a half-inhibitory concentration (IC50) for NaF of 5.919 × 10-3 M at 72 h. Compared with controls, the percentages of early and late apoptotic and necrotic cells clearly increased based on observed increases in NaF concentrations. Two-dimensional gel electrophoresis combined with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was used to detect differentially expressed proteins in Sf9 cells treated with IC50 NaF, identifying 17 proteins, seven of which were upregulated and 10 downregulated. These results demonstrated that Sf9 cells showed signs of NaF-mediated toxicity through alterations in cell morphology, apoptosis rates, and protein expression.
Collapse
Affiliation(s)
- Huan Zuo
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Ming Kong
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Yanhua Yang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Peng Lü
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Lipeng Qiu
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Qiang Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Shangshang Ma
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| |
Collapse
|
144
|
Wang Q, Ren M, Feng F, Chen K, Ju X. Treatment of colon cancer with liver X receptor agonists induces immunogenic cell death. Mol Carcinog 2018; 57:903-910. [PMID: 29573475 DOI: 10.1002/mc.22811] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/04/2018] [Accepted: 03/20/2018] [Indexed: 12/22/2022]
Abstract
Liver X receptor (LXR) agonists inhibit various types of tumor growth and have been applied to preclinical research. In colon cancer cells, LXR agonists induce pyroptotic cell death through the predominant cytoplasmic localisation of LXRβ. In the present study, we determined whether tumor cell death induced by LXR agonists in colon cancer cells could elicit immunogenic cell death (ICD). LXR agonist-treated-colon cancer cells exhibited translocation of calreticulin (CRT) and release of HMGB1 and ATP into the medium. Expression levels of CRT and HMGB1 were also increased in T0901317-treated Balb/c mice. Furthermore, compared with control mice, mice vaccinated with T0901317-treated CT26 cells showed reduced tumor volumes and protection against a challenge with live tumor cells. Inhibition of CRT or HMGB1 expression in CT26 cells abolished this protection in Balb/c mice. In conclusion, the LXR agonist T0901317 induces ICD in colon cancer cells. CRT exposure and HMGB1 release play a critical role in the immunogenicity of this treatment.
Collapse
Affiliation(s)
- Qiang Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Meijia Ren
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Fan Feng
- The Central Laboratory, The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaoli Ju
- School of Medicine, Jiangsu University, Zhenjiang, China
| |
Collapse
|
145
|
Chen K, Tian C, Liang S, Zhao X, Wang X. Effect of stoichiometry on the thermal stability and flame retardation of polyisocyanurate foams modified with epoxy resin. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
146
|
Ning X, Ye X, Si Y, Yang Z, Zhao Y, Sun Q, Chen R, Tang M, Chen K, Zhang X, Zhang S. Prevalence and prognosis of ventricular tachycardia/ventricular fibrillation in patients with post-infarction left ventricular aneurysm: Analysis of 575 cases. J Electrocardiol 2018; 51:742-746. [PMID: 29803411 DOI: 10.1016/j.jelectrocard.2018.03.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 03/12/2018] [Accepted: 03/21/2018] [Indexed: 11/18/2022]
Abstract
BACKGROUND We investigated the prevalence of ventricular tachycardia/ventricular fibrillation (VT/VF) in Post-infarction left ventricular aneurysm (PI-LVA) patients and analyze clinical outcomes in patients presenting with VT/VF. METHODS 575 PI-LVA patients were enrolled and investigated by logistic regression analysis. Patients with VT/VF were followed up, the composite primary endpoint was cardiac death and appropriate ICD/external shocks. RESULTS The incidence of sustained VT/VF was 11%. Logistical regression analysis showed male gender, enlarged LV end diastolic diameter (LVEDD) and higher NYHA class were correlated with VT/VF development. During follow up of 46 ± 15 months, 19 out of 62(31%) patients reached study end point. Multivariate Cox regression analysis revealed that enlarged LVEDD and moderate/severe mitral regurgitation (MR) were independently predictive of clinical outcome. CONCLUSIONS Male gender, enlarged LVEDD and higher NYHA class associated with risk of sustained VT/VF in PI-LVA patients. Among VT/VF positive patients, enlarged LVEDD and moderate/severe MR independently predicted poor clinical prognosis.
Collapse
Affiliation(s)
- Xiaohui Ning
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Xuerui Ye
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Yanhua Si
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Zihe Yang
- Department of Nuclear Medicine, Anzhen Hospital, China
| | - Yunzi Zhao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Qi Sun
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Ruohan Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Min Tang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China
| | - Xiaoli Zhang
- Department of Nuclear Medicine, Anzhen Hospital, China
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, China.
| |
Collapse
|
147
|
Ju X, Ren M, Chen K, Wang Q. Overexpression of c-Myc enhances recombinant protein production in High Five cells after baculovirus infection. ACTA ACUST UNITED AC 2018; 73:147-151. [PMID: 28753552 DOI: 10.1515/znc-2017-0076] [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: 05/04/2017] [Accepted: 07/10/2017] [Indexed: 11/15/2022]
Abstract
Due to their numerous advantages, baculovirus expression vector systems (BEVS) have been widely used to express recombinant proteins for different purposes. Different strategies have been adopted to increase recombinant protein production. In this study, we transiently or stably expressed mouse c-Myc in High Five cells using a commercial pIB/V5 vector. Under the control of the OpIE2 promoter, this vector could enhance recombinant protein production. We found that transient expression of c-Myc in High Five cells improved recombinant protein production. Furthermore, we established two stable cell lines, High Five-c-Myc #1 and High Five-c-Myc #2, that stably expressed mouse c-Myc. We further found that the expression level of the recombinant protein was increased in these stable cell lines compared to control cell lines. These data indicate that overexpressing c-Myc in cells is a promising way to improve recombinant protein production in BEVS.
Collapse
Affiliation(s)
- Xiaoli Ju
- School of Medicine, Jiangsu University, Zhenjiang, China
| | - Meijia Ren
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, P.R. China
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Qiang Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| |
Collapse
|
148
|
Qin S, Danso B, Zhang J, Li J, Liu N, Sun X, Hou C, Luo H, Chen K, Zhang G, Li M. MicroRNA profile of silk gland reveals different silk yields of three silkworm strains. Gene 2018; 653:1-9. [PMID: 29432827 DOI: 10.1016/j.gene.2018.02.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 12/13/2017] [Revised: 01/27/2018] [Accepted: 02/07/2018] [Indexed: 12/15/2022]
Abstract
Silk proteins are synthesized and secreted by the silk gland. The differential gene expression in it leads to different silk yield among various silkworm strains. As crucial factors, microRNAs (miRNAs) regulate protein synthesis at post-transcriptional level in silk gland. MiRNAs expression level in the silk gland of three silkworm strains (Jingsong, Lan10 and Dazao) was analyzed and 33 differentially expressed miRNAs (DEMs) were discovered between JingSong (JS) and Lan10 (L10), 60 DEMs between JS and Dazao, 54 DEMs between L10 and Dazao respectively. The DEMs target genes were predicted combing with two different methods and their functions were annotated according to gene ontology. Our previous studies showed that a batch of genes related to silk yield were identified in JS and L10 strains by comparative transcriptome and quantitative trait loci (QTL) method. Thirteen DEMs whose target genes are related to protein biosynthesis processes were screened by combining with these researches. Twelve DEMs potentially regulate nineteen genes which exist in our QTL results. Six common DEMs potentially regulate the genes in both of previous results. Finally, five DEMs were selected to verify their expression levels between JS and L10 by qRT-PCR, which showed similar difference as the results of small RNA-sequencing. MiRNAs in the silk gland may directly affect silk protein biosynthesis in different silkworm strains. In current work, we identified a batch of DEMs which potentially regulate the genes related to silk yield. Further functionally study of these miRNAs will contribute to improve varieties and boost the silk yield. Our research provides a basis for studying these miRNAs and their functions in silk production.
Collapse
Affiliation(s)
- Sheng Qin
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China; The Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu 212018, China.
| | - Blessing Danso
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China
| | - Jing Zhang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China
| | - Juan Li
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China
| | - Na Liu
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China
| | - Xia Sun
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China
| | - Chengxiang Hou
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China; The Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu 212018, China
| | - Heng Luo
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China.
| | - Keping Chen
- Institute of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
| | - Guozheng Zhang
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China; The Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu 212018, China
| | - Muwang Li
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China; The Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Science, Zhenjiang, Jiangsu 212018, China.
| |
Collapse
|
149
|
Chen L, Yang Y, Wang Y, Qiu L, Xia H, Wang A, Liu H, Shi H, Chen K. Proteomic response of the rat liver in differential swimming modes. Clin Exp Pharmacol Physiol 2018; 45:581-590. [DOI: 10.1111/1440-1681.12905] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 11/09/2017] [Accepted: 11/12/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Liang Chen
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu Province China
| | - Yanhua Yang
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu Province China
| | - Yiting Wang
- College of Athletic Sports; Yangzhou University; Yangzhou Jiangsu Province China
| | - Lipeng Qiu
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu Province China
| | - Hengchuan Xia
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu Province China
| | - Aiai Wang
- College of Athletic Sports; Yangzhou University; Yangzhou Jiangsu Province China
| | - Hailong Liu
- College of Life Sciences; Nanjing Normal University; Nanjing Jiangsu Province China
| | - Hongfei Shi
- Second Clinical College of Medicine; Nanjing University of Chinese Medicine; Nanjing Jiangsu Province China
| | - Keping Chen
- Institute of Life Sciences; Jiangsu University; Zhenjiang Jiangsu Province China
| |
Collapse
|
150
|
Affiliation(s)
- Abdelli Nouara
- School of Food and Biological Engineering, Jiangsu University, China
- Institute of Life Sciences, Jiangsu University, China
| | - Peng Lü
- Institute of Life Sciences, Jiangsu University, China
| | - Liang Chen
- Institute of Life Sciences, Jiangsu University, China
| | - Yan Pan
- Institute of Life Sciences, Jiangsu University, China
| | - Yanhua Yang
- Institute of Life Sciences, Jiangsu University, China
| | - Keping Chen
- School of Food and Biological Engineering, Jiangsu University, China
- Institute of Life Sciences, Jiangsu University, China
| |
Collapse
|