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Pan C, Anouar B, Yang Y, Li L, Kuang L, Wang B, Lv G, Obeid I. Relationships between lumbar lordosis correction and the change in global tilt (GT) in adult spinal deformity. Eur Spine J 2024; 33:610-619. [PMID: 38104044 DOI: 10.1007/s00586-023-08066-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 07/24/2023] [Accepted: 11/24/2023] [Indexed: 12/19/2023]
Abstract
PURPOSE This study aimed to explore the relationships between lumbar lordosis (LL) correction and improvement of postoperative global sagittal alignment and to establish corresponding linear regressions to predict the change in global tilt (GT) based on the corrected LL following adult spinal deformity (ASD) surgery. METHODS A total of 240 ASD patients who underwent lumbar correction were enrolled in this multicentre study. The following sagittal parameters were measured pre- and postoperatively: thoracic kyphosis (TK), LL, upper and lower LL (ULL and LLL), pelvic tilt (PT), sagittal vertical axis (SVA) and GT. The correlations among the changes in GT (△GT), SVA (△SVA), PT (△PT), TK (△TK), LL (△LL), ULL (△ULL) and LLL (△LLL) were assessed, and linear regressions were conducted to predict △GT, △SVA, △PT and △TK from △LL, △ULL and △LLL. RESULTS △LL was statistically correlated with △GT (r = 0.798, P < 0.001), △SVA (r = 0.678, P < 0.001), △PT (r = 0.662, P < 0.001) and △TK (r = - 0.545, P < 0.001), and the outcomes of the linear regressions are: △GT = 3.18 + 0.69 × △LL (R2 = 0.636), △SVA = 4.78 + 2.57 × △LL (R2 = 0.459), △PT = 2.57 + 0.34 × △LL (R2 = 0.439), △TK = 7.06-0.43 × △LL (R2 = 0.297). In addition, △LLL had more correlations with △GT, △SVA and △PT, while △ULL had more correlations with △TK. CONCLUSION Surgical correction of LL could contribute to the restoration of global sagittal morphology following ASD surgery. These models were established to predict the changes in sagittal parameters, in particular △GT, determined by △LL, which has not been previously done and may help to customize a more precise correction plan for ASD patients.
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Affiliation(s)
- Changyu Pan
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Bourghli Anouar
- Spine Surgery Department, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Yue Yang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Ibrahim Obeid
- Orthopedic Spinal Surgery Unit 1, Pellegrin Hospital, Place Amélie Raba-Léon, 33076, Bordeaux Cedex, France.
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Chen Z, Lv G, Zhang O, Li Y, Wang X, He H, Yuan H, Pan C, Kuang L. Risk factors of instrumentation failure after laminectomy and posterior cervical fusions (PCF). BMC Musculoskelet Disord 2024; 25:1. [PMID: 38166792 PMCID: PMC10759594 DOI: 10.1186/s12891-023-07116-z] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND For patients with multilevel degenerative cervical myelopathy, laminectomy and posterior cervical fusions (PCF) with instrumentation are widely accepted techniques for symptom relief. However, hardware failure is not rare and results in neck pain or even permanent neurological lesions. There are no in-depth studies of hardware-related complications following laminectomy and PCF with instrumentation. METHODS The present study was a retrospective, single centre, observational study. Patients who underwent laminectomy and PCF with instrumentation in a single institution between January 2019 and January 2021 were included. Patients were divided into hardware failure and no hardware failure group according to whether there was a hardware failure. Data, including sex, age, screw density, end vertebra (C7 or T1), cervical sagittal alignment parameters (C2-C7 cervical lordosis, C2-C7 sagittal vertical axis, T1 slope, Cervical lordosis correction), regional Hounsfield units (HU) of the screw trajectory and osteoporosis status, were collected and compared between the two groups. RESULTS We analysed the clinical data of 56 patients in total. The mean overall follow-up duration was 20.6 months (range, 12-30 months). Patients were divided into the hardware failure group (n = 14) and no hardware failure group (n = 42). There were no significant differences in the general information (age, sex, follow-up period) of patients between the two groups. The differences in fusion rate, fixation levels, and screw density between the two groups were not statistically significant (p > 0.05). The failure rate of fixation ending at T1 was lower than that at C7 (9% vs. 36.3%) (p = 0.019). The regional HU values of the pedicle screw (PS) and lateral mass screw (LMS) in the failure group were lower than those in the no failure group (PS: 267 ± 45 vs. 368 ± 43, p = 0.001; LMS: 308 ± 53 vs. 412 ± 41, p = 0.001). The sagittal alignment parameters did not show significant differences between the two groups before surgery or at the final follow-up (p > 0.05). The hardware failure rate in patients without osteoporosis was lower than that in patients with osteoporosis (14.3% vs. 57.1%) (p = 0.001). CONCLUSIONS Osteoporosis, fixation ending at C7, and low regional HU value of the screw trajectory were the independent risk factors of hardware failure after laminectomy and PCF. Future studies should illuminate if preventive measures targeting these factors can help reduce hardware failure and identified more risk factors, and perform long-term follow-up.
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Affiliation(s)
- Zejun Chen
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Guohua Lv
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Ou Zhang
- California University of Science and Medicine, Colton, CA, USA
| | - Yunchao Li
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Xiaoxiao Wang
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Haoyu He
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Hui Yuan
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Changyu Pan
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Lei Kuang
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
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Wang G, Zhao R, Zhang X, Zheng Y, Xie F, Jiang Y, Lv G, Long D, Sun C, Bao Y, Qi S, Liu X, Zhang Q, Yang X. EGFR/MAPK signaling pathway acts as a potential therapeutic target for sulforaphane-rescued heart tube malformation induced by various concentrations of PhIP exposure. Phytomedicine 2024; 123:155270. [PMID: 38096717 DOI: 10.1016/j.phymed.2023.155270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 11/14/2023] [Accepted: 12/07/2023] [Indexed: 01/17/2024]
Abstract
BACKGROUND 2-Amino-1-methyl-6-phenylimidazo [4,5-b] pyrimidine (PhIP) is a known carcinogen generated mainly from cooking meat and environmental pollutants. It is worth exploring the potential of natural small-molecule drugs to protect against adverse effects on embryonic development. PURPOSE In this study, we investigated the potential toxicological effects of PhIP on embryonic heart tube formation and the effect of Sulforaphane (SFN) administration on the anti-toxicological effects of PhIP on embryonic cardiogenesis. STUDY DESIGN AND METHODS First, the chicken embryo model was used to investigate the different phenotypes of embryonic heart tubes induced by various concentrations of PhIP exposure. We also proved that SFN rescues PhIP-induced embryonic heart tube malformation. Second, immunofluorescence, western blot, Polymerase Chain Reaction (PCR) and flow cytometry experiments were employed to explore the mechanisms by which SFN protects cardiac cells from oxidative damage in the presence of PhIP. We used RNA-seq analysis, molecular docking, in situ hybridization, cellular thermal shift assay and solution nuclear magnetic resonance spectroscopy to explore whether SFN protects cardiogenesis through the EGFR/MAPK signaling pathway. RESULTS The study showed that PhIP might dose-dependently interfere with the C-looping heart tube (mild) or the fusion of a pair of bilateral endocardial tubes (severe) in chick embryos, while SFN administration prevented cardiac cells from oxidative damage in the presence of high-level PhIP. Furthermore, we found that excessive reactive oxygen species (ROS) production and subsequent apoptosis were not the principal mechanisms by which low-level PhIP induced malformation of heart tubes. This is due to PhIP-disturbed Mitogen-activated protein kinase (MAPK) signaling pathway could be corrected by SFN administration. CONCLUSIONS This study provided novel insight that PhIP exposure could increase the risk of abnormalities in early cardiogenesis and that SFN could partially rescue various concentrations of PhIP-induced abnormal heart tube formation by targeting EGFR and mediating EGFR/MAPK signaling pathways.
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Affiliation(s)
- Guang Wang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China; Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou 510632, China.
| | - Ran Zhao
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Xinxia Zhang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Ying Zheng
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Feiling Xie
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Yu Jiang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Guohua Lv
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Denglu Long
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Chengyang Sun
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Yongping Bao
- Norwich Medical School, University of East Anglia, Norwich, Norfolk NR4 7UQ, United Kingdom
| | - Shuangyu Qi
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Xinyue Liu
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China
| | - Qihao Zhang
- Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Xuesong Yang
- International Joint Laboratory for Embryonic Development & Prenatal Medicine, Division of Histology and Embryology, Medical College, Jinan University, Guangzhou 510632, China; Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou 510632, China; Clinical Research Center, Clifford Hospital, Guangzhou 511495, China.
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Dong A, Liu J, Zhang G, Wei Z, Zhai Y, Lv G. Momentum contrast transformer for COVID-19 diagnosis with knowledge distillation. Pattern Recognit 2023; 143:109732. [PMID: 37303605 PMCID: PMC10232920 DOI: 10.1016/j.patcog.2023.109732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/08/2023] [Accepted: 05/29/2023] [Indexed: 06/13/2023]
Abstract
Intelligent diagnosis has been widely studied in diagnosing novel corona virus disease (COVID-19). Existing deep models typically do not make full use of the global features such as large areas of ground glass opacities, and the local features such as local bronchiolectasis from the COVID-19 chest CT images, leading to unsatisfying recognition accuracy. To address this challenge, this paper proposes a novel method to diagnose COVID-19 using momentum contrast and knowledge distillation, termed MCT-KD. Our method takes advantage of Vision Transformer to design a momentum contrastive learning task to effectively extract global features from COVID-19 chest CT images. Moreover, in transfer and fine-tuning process, we integrate the locality of convolution into Vision Transformer via special knowledge distillation. These strategies enable the final Vision Transformer simultaneously focuses on global and local features from COVID-19 chest CT images. In addition, momentum contrastive learning is self-supervised learning, solving the problem that Vision Transformer is challenging to train on small datasets. Extensive experiments confirm the effectiveness of the proposed MCT-KD. In particular, our MCT-KD is able to achieve 87.43% and 96.94% accuracy on two publicly available datasets, respectively.
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Affiliation(s)
- Aimei Dong
- Faculty of Computer Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Jian Liu
- Faculty of Computer Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Guodong Zhang
- Faculty of Computer Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhonghe Wei
- Faculty of Computer Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yi Zhai
- Faculty of Computer Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Guohua Lv
- Faculty of Computer Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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Pan C, Anouar B, Li Y, Li L, Kuang L, Wang B, Sun J, Lv G, Obeid I. Predicting thoracic kyphosis morphology and the thoracolumbar inflection point determined by individual lumbar lordosis in asymptomatic adults. Eur Spine J 2023:10.1007/s00586-023-07983-z. [PMID: 37851162 DOI: 10.1007/s00586-023-07983-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 07/31/2023] [Accepted: 10/01/2023] [Indexed: 10/19/2023]
Abstract
PURPOSE The aims of this study were to explore the correlations between thoracic kyphosis (TK) and lumbar lordosis (LL) parameters and to build corresponding linear regressions to predict TK morphology and the thoracolumbar inflection point (IP) determined by individual LL parameters in asymptomatic adults. METHODS A total of 280 adult healthy volunteers were recruited, and full-spine X-rays were performed for each subject in a standing posture. The following sagittal parameters were measured: cumulative TK, LL, proximal LL (PLL), the apices of TK (TKA) and LL (LLA), the IP and the distance from the plumb line of the thoracic apex (TAPL) and the lumbar apex (LAPL) to the gravity line. The correlations between TK and LL parameters were analyzed, and the corresponding linear regressions were conducted. RESULTS Extensive variations existed in TK alignment, including angular and morphological parameters. In addition, there were statistical correlations of all cumulative TK angles with LL (r values from - 0.173 to - 0.708) and PLL (r values from - 0.206 to - 0.803), TKA and IP with LLA (rs = 0.359 and 0.582, respectively) and TAPL with LAPL (rs = 0.335). The common predictive formulas employed in ASD surgery could include T10-L1 = - 3.6-0.2*LL (R2 = 0.201), T4-L1 = 3.4-0.5*LL (R2 = 0.457), TKA = - 10.3 + 1.1*LLA (R2 = 0.180) and IP = - 12.7 + 1.6*LLA (R2 = 0.330). CONCLUSION There were intimate associations between TK and LL parameters in asymptomatic adults. Moreover, predictive models for thoracic alignment, particularly cumulative TK, based on LL parameters were proposed, which could better delineate anatomical relationships, guide thoracic construction during adult spinal deformity surgery and may help preventing proximal junctional failure.
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Affiliation(s)
- Changyu Pan
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
- Orthopedic Spinal Surgery Unit 1, Pellegrin Hospital, Place Amélie Raba-Léon, 33076, Bordeaux Cedex, France
| | - Bourghli Anouar
- Spine Surgery Department, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Yunchao Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China
| | - Jianmin Sun
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250000, Shandong, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, China.
| | - Ibrahim Obeid
- Orthopedic Spinal Surgery Unit 1, Pellegrin Hospital, Place Amélie Raba-Léon, 33076, Bordeaux Cedex, France
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Song C, Wen H, Liu G, Ma X, Lv G, Wu N, Chen J, Xue M, Li H, Xu P. Corrigendum: Gut microbes reveal Pseudomonas medicates ingestion preference via protein utilization and cellular homeostasis under feed domestication in freshwater drum, Aplodinotus grunniens. Front Microbiol 2023; 14:1259988. [PMID: 37692406 PMCID: PMC10484575 DOI: 10.3389/fmicb.2023.1259988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 08/11/2023] [Indexed: 09/12/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fmicb.2022.861705.].
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Affiliation(s)
- Changyou Song
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Haibo Wen
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Guangxiang Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Xueyan Ma
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Guohua Lv
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Ningyuan Wu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Jianxiang Chen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Miaomiao Xue
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Hongxia Li
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
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Xue M, Wen H, Xu P, Chen J, Wang Q, Tang Y, Ma X, Lv G, Li H, Song C. Validation and Functional Analysis of Reference and Tissue-Specific Genes in Adipose Tissue of Freshwater Drum, Aplodinotus grunniens, under Starvation and Hypothermia Stress. Cells 2023; 12:cells12091328. [PMID: 37174728 PMCID: PMC10177597 DOI: 10.3390/cells12091328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/23/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Adipose tissue is critical to the growth, development, and physiological health of animals. Reference genes play an essential role in normalizing the expression of mRNAs. Tissue-specific genes are preferred for their function and expression in specific tissues or cell types. Identification of these genes contributes to understanding the tissue-gene relationship and the etiology and discovery of new tissue-specific targets. Therefore, reference genes and tissue-specific genes in the adipose tissue of Aplodinotus grunniens were identified to explore their function under exogenous starvation (1 d, 2 w, 6 w) and hypothermic stress (18 °C and 10 °C for 2 d and 8 d) in this study. Results suggest that 60SRP was the most stable reference gene in adipose tissue. Meanwhile, eight genes were validated as tissue-specific candidates from the high-throughput sequencing database, while seven of them (ADM2, β2GP1, CAMK1G, CIDE3, FAM213A, HSL, KRT222, and NCEH1) were confirmed in adipose tissue. Additionally, these seven tissue-specific genes were active in response to starvation and hypothermic stress in a time- or temperature-dependent manner. These results demonstrate that adipose-specific genes can be identified using stable internal reference genes, thereby identifying specific important functions under starvation and hypothermic stress, which provides tissue-specific targets for adipose regulation in A. grunniens.
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Affiliation(s)
- Miaomiao Xue
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Haibo Wen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Pao Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Jianxiang Chen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Qingyong Wang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
| | - Yongkai Tang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Xueyan Ma
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Guohua Lv
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Hongxia Li
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Changyou Song
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
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He J, Kong M, Qian Y, Gong M, Lv G, Song J. Cellobiose elicits immunity in lettuce conferring resistance to Botrytis cinerea. J Exp Bot 2023; 74:1022-1038. [PMID: 36385320 DOI: 10.1093/jxb/erac448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Cellobiose is the primary product of cellulose hydrolysis and is expected to function as a type of pathogen/damage-associated molecular pattern in evoking plant innate immunity. In this study, cellobiose was demonstrated to be a positive regulator in the immune response of lettuce, but halted autoimmunity when lettuce was exposed to concentrations of cellobiose >60 mg l-1. When lettuce plants were infected by Botrytis cinerea, cellobiose endowed plants with enhanced pre-invasion resistance by activating high β-1,3-glucanase and antioxidative enzyme activities at the initial stage of pathogen infection. Cellobiose-activated core regulatory factors such as EDS1, PTI6, and WRKY70, as well as salicylic acid signaling, played an indispensable role in modulating plant growth-defense trade-offs. Transcriptomics data further suggested that the cellobiose-activated plant-pathogen pathways are involved in microbe/pathogen-associated molecular pattern-triggered immune responses. Genes encoding receptor-like kinases, transcription factors, and redox homeostasis, phytohormone signal transduction, and pathogenesis-related proteins were also up- or down-regulated by cellobiose. Taken together, the findings of this study demonstrated that cellobiose serves as an elicitor to directly activate disease-resistance-related cellular functions. In addition, multiple genes have been identified as potential modulators of the cellobiose-induced immune response, which could aid understanding of underlying molecular events.
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Affiliation(s)
- Jiuxing He
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Meng Kong
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuanchao Qian
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Min Gong
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Guohua Lv
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jiqing Song
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Wang J, Zhang X, Zhang Y, Lv G, Wang X, Li J. Posterior instrumentation combined with anterior debridement and reconstruction using allogenic strut bone for the treatment of children with multilevel lumbar spinal tuberculosis: minimum 5-year follow-up. BMC Musculoskelet Disord 2022; 23:1051. [PMID: 36461041 PMCID: PMC9716726 DOI: 10.1186/s12891-022-06006-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022] Open
Abstract
OBJECTIVES To evaluate the clinical outcomes of one-stage posterior instrumentation combined with anterior debridement and reconstruction using allogenic strut bone for the surgical treatment of multilevel lumbar spinal tuberculosis in children younger than 10 years of age with at least 5 years of follow-up. METHODS A total of 16 children with multilevel lumbar spinal tuberculosis who underwent one-stage posterior instrumentation combined with anterior debridement and reconstruction using allogenic strut bone were enrolled from January 2003 to January 2017. Among them, 6 were females and 10 were males with an average age of 6.9 ± 2.2 years (range 3-10 years). Patients' clinical outcomes, including C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), kyphosis angle, and neurologic function, were assessed before and after surgery. P < 0.05 was considered statistically significant. RESULTS The average follow-up was 7.8 ± 2.4 years. CRP and ESR of all patients returned to the normal range within 1 year. Compared with preoperative neurological deficits, postoperative and final follow-up neurological deficits improved significantly by grades 0.9 and 1.6, respectively. No instrumentation failure occurred, and all patients achieved solid bone fusion. The preoperative kyphosis angle was 29.9 ± 8.1°, which decreased significantly to 5.9 ± 2.6° postoperatively. There was a mild loss (2.5°) and the kyphosis angle was 8.4 ± 2.9° at final follow-up, with an overall correction rate of 71.3%. CONCLUSION One-stage posterior instrumentation combined with anterior debridement and reconstruction using allogenic strut bone is a safe and effective procedure for children with multilevel lumbar spinal tuberculosis. This approach facilitates the removal of lesions and decompression of the spinal cord and is effective in restoring spinal stability, correcting kyphosis, and preventing deterioration of the deformity.
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Affiliation(s)
- Jingyu Wang
- grid.452708.c0000 0004 1803 0208Department of Spine Surgery, Spinal Deformity Center, The Second Xiangya Hospital of Central South University, Changsha, 410011 Hunan China
| | - Xueying Zhang
- grid.493088.e0000 0004 1757 7279Department of Neurology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100 Henan China
| | - Yi Zhang
- grid.452708.c0000 0004 1803 0208Department of Spine Surgery, Spinal Deformity Center, The Second Xiangya Hospital of Central South University, Changsha, 410011 Hunan China
| | - Guohua Lv
- grid.452708.c0000 0004 1803 0208Department of Spine Surgery, Spinal Deformity Center, The Second Xiangya Hospital of Central South University, Changsha, 410011 Hunan China
| | - Xiaobin Wang
- grid.452708.c0000 0004 1803 0208Department of Spine Surgery, Spinal Deformity Center, The Second Xiangya Hospital of Central South University, Changsha, 410011 Hunan China
| | - Jing Li
- grid.452708.c0000 0004 1803 0208Department of Spine Surgery, Spinal Deformity Center, The Second Xiangya Hospital of Central South University, Changsha, 410011 Hunan China
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10
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Wang Y, Zhou Y, Shi C, Liu J, Lv G, Huang H, Li S, Duan L, Zheng X, Liu Y, Zhou H, Wang Y, Li Z, Ding K, Sun P, Huang Y, Lu X, Zhang ZM. A toxin-deformation dependent inhibition mechanism in the T7SS toxin-antitoxin system of Gram-positive bacteria. Nat Commun 2022; 13:6434. [PMID: 36307446 PMCID: PMC9616950 DOI: 10.1038/s41467-022-34034-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 10/11/2022] [Indexed: 12/25/2022] Open
Abstract
Toxin EsaD secreted by some S. aureus strains through the type VII secretion system (T7SS) specifically kills those strains lacking the antitoxin EsaG. Here we report the structures of EsaG, the nuclease domain of EsaD and their complex, which together reveal an inhibition mechanism that relies on significant conformational change of the toxin. To inhibit EsaD, EsaG breaks the nuclease domain of EsaD protein into two independent fragments that, in turn, sandwich EsaG. The originally well-folded ββα-metal finger connecting the two fragments is stretched to become a disordered loop, leading to disruption of the catalytic site of EsaD and loss of nuclease activity. This mechanism is distinct from that of the other Type II toxin-antitoxin systems, which utilize an intrinsically disordered region on the antitoxins to cover the active site of the toxins. This study paves the way for developing therapeutic approaches targeting this antagonism.
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Affiliation(s)
- Yongjin Wang
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Yang Zhou
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Chaowei Shi
- grid.59053.3a0000000121679639Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026 China
| | - Jiacong Liu
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Guohua Lv
- grid.258164.c0000 0004 1790 3548Division of Histology & Embryology, Medical College, Jinan University, Guangzhou, 510632 China
| | - Huisi Huang
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Shengrong Li
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Liping Duan
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Xinyi Zheng
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Yue Liu
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Haibo Zhou
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Yonghua Wang
- grid.79703.3a0000 0004 1764 3838School of Food Science and Engineering, South China University of Technology, Guangzhou, 510640 China
| | - Zhengqiu Li
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Ke Ding
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Pinghua Sun
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Yun Huang
- grid.5386.8000000041936877XDepartment of Physiology & Biophysics, Weill Cornell Medicine, New York, NY 10065 USA
| | - Xiaoyun Lu
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China
| | - Zhi-Min Zhang
- grid.258164.c0000 0004 1790 3548International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, Guangzhou, 510632 China ,Guangdong Youmei Institute of Intelligent Bio-manufacturing, Foshan, Guangdong 528200 China
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Zhang T, Wen H, Xu D, Lv G, Zhou Y. PacBio Full-Length and Illumina Transcriptomes of the Gill Reveal the Molecular Response of Corbicula fluminea under Aerial Exposure. Int J Mol Sci 2022; 23:ijms231911474. [PMID: 36232776 PMCID: PMC9570311 DOI: 10.3390/ijms231911474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/09/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Air exposure is a common stress for Corbicula fluminea, an economically important freshwater shellfish consumed in China, during aquaculture and transportation. However, little is known about its molecular responses to air exposure. Therefore, this study used a combination of PacBio full-length and Illumina transcriptomes to investigate its molecular responses to air exposure. A total of 36,772 transcripts were obtained using PacBio sequencing. Structural analysis identified 32,069 coding sequences, 1906 transcription factors, 8873 simple sequence repeats, and 17,815 long non-coding RNAs. Subcellular localization analysis showed that most transcripts were located in the cytoplasm and nucleus. After 96-h of air exposure, 210 differentially expressed genes (DEGs) in the gill were obtained via Illumina sequencing. Among these DEGs, most of the genes related to glycolysis, tricarboxylic acid cycle, lipid metabolism, and amino acid metabolism were upregulated. Additionally, many DEGs associated with immunity, cytoskeleton reorganization, autophagy, and ferroptosis were identified. These findings indicated that metabolic strategy change, immune response, cytoskeleton reconstruction, autophagy, and ferroptosis might be the important mechanisms that C. fluminea use to cope with air exposure. This study will enrich the gene resources of C. fluminea and provide valuable data for studying the molecular mechanisms coping with air exposure in C. fluminea and other freshwater mollusks.
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Affiliation(s)
- Ting Zhang
- Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Haibo Wen
- Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Dongpo Xu
- Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Guohua Lv
- Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
| | - Yanfeng Zhou
- Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China
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12
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Lv G, Wang B, Li L, Li Y, Li X, He H, Kuang L. Exosomes from dysfunctional chondrocytes affect osteoarthritis in Sprague-Dawley rats through FTO-dependent regulation of PIK3R5 mRNA stability. Bone Joint Res 2022; 11:652-668. [PMID: 36066338 PMCID: PMC9533253 DOI: 10.1302/2046-3758.119.bjr-2021-0443.r2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aims Exosomes (exo) are involved in the progression of osteoarthritis (OA). This study aimed to investigate the function of dysfunctional chondrocyte-derived exo (DC-exo) on OA in rats and rat macrophages. Methods Rat-derived chondrocytes were isolated, and DCs induced with interleukin (IL)-1β were used for exo isolation. Rats with OA (n = 36) or macrophages were treated with DC-exo or phosphate-buffered saline (PBS). Macrophage polarization and autophagy, and degradation and chondrocyte activity of cartilage tissues, were examined. RNA sequencing was used to detect genes differentially expressed in DC-exo, followed by RNA pull-down and ribonucleoprotein immunoprecipitation (RIP). Long non-coding RNA osteoarthritis non-coding transcript (OANCT) and phosphoinositide-3-kinase regulatory subunit 5 (PIK3R5) were depleted in DC-exo-treated macrophages and OA rats, in order to observe macrophage polarization and cartilage degradation. The PI3K/AKT/mammalian target of rapamycin (mTOR) pathway activity in cells and tissues was measured using western blot. Results DC-exo inhibited macrophage autophagy (p = 0.002) and promoted M1 macrophage polarization (p = 0.002). DC-exo at 20 μg/ml induced collagen degradation (p < 0.001) and inflammatory cell infiltration (p = 0.023) in rats. OANCT was elevated in DC (p < 0.001) and in cartilage tissues of OA patients (p < 0.001), and positively correlated with patients’ Kellgren-Lawrence grade (p < 0.001). PIK3R5 was increased in DC-exo-treated cartilage tissues (p < 0.001), and OANCT bound to fat mass and obesity-associated protein (FTO) (p < 0.001). FTO bound to PIK3R5 (p < 0.001) to inhibit the stability of PIK3R5 messenger RNA (mRNA) (p < 0.001) and disrupt the PI3K/AKT/mTOR pathway (p < 0.001). Conclusion Exosomal OANCT from DC could bind to FTO protein, thereby maintaining the mRNA stability of PIK3R5, further activating the PI3K/AKT/mTOR pathway to exacerbate OA. Cite this article: Bone Joint Res 2022;11(9):652–668.
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Affiliation(s)
- Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yunchao Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xinyi Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Haoyu He
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
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13
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Zhang T, Xu D, Lv G, Wang A, Wen H. Histological, physiological, and transcriptomic responses of hepatopancreas to air exposure in asian freshwater clam Corbicula fluminea. Front Physiol 2022; 13:952744. [PMID: 36035463 PMCID: PMC9402986 DOI: 10.3389/fphys.2022.952744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Corbicula fluminea (C. fluminea) is an important freshwater economy shellfish in China, but it often suffers from air exposure during transportation. In this study, we investigated the histological, physiological (mainly including respiratory metabolism, antioxidant capacity, and immune function), and transcriptomic responses of hepatopancreas in C. fluminea to different times of air exposure. At histological level, air exposure caused vacuolation of digestive cells (24–96 h) and enlargement of digestive tubule lumen (6–96 h) in hepatopancreas. At physiological level, the activities of enzymes related to glycolysis (hexokinase and pyruvate kinase) and anaerobic respiration (lactate dehydrogenase) were increased first (6–24 h) of air exposure, then came back to normal level or even decreased. The activity of aerobic respiration-related enzyme (succinic dehydrogenase) began to reduce from 24 h of air exposure. The activities of antioxidant enzymes (superoxide dismutase and catalase) were enhanced during 6–48 h of air exposure and then returned to control level or even inhibited. The content of malondialdehyde (MDA) increased from 96 h of air exposure. The activities of immune-related enzymes (acid phosphatase and alkaline phosphatase) increased during 6–48 h, then returned to normal or began to decline. At transcriptome level, 44 differentially expressed genes (DEGs) in the hepatopancreas were identified after 96-h air exposure. Among these DEGs, 8 were associated with glycolysis, TCA cycle, immune, and antioxidant, and were downregulated after 96-h air exposure. Taken together, these findings illuminated the response of C. fluminea to air exposure at histological, physiological, and transcriptomic levels, which will be beneficial to the aquaculture and transportation of C. fluminea.
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Zheng B, Zheng B, Niu H, Wang X, Lv G, Li J, Wang J. Effect Analysis of Preoperative Intravenous Tranexamic Acid Combined With Intraoperative Immersion in Reducing Perioperative Blood Loss of One Stage Posterior Thoracolumbar Tuberculosis. Front Surg 2022; 9:852589. [PMID: 35813048 PMCID: PMC9260174 DOI: 10.3389/fsurg.2022.852589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/06/2022] [Indexed: 11/16/2022] Open
Abstract
Background To investigate the efficacy and safety of preoperative intravenous tranexamic acid (TXA) combined with intraoperative immersion in reducing perioperative blood loss in one-stage posterior thoracolumbar tuberculosis. Methods All patients were divided into four groups: Group A received an intravenous drip of TXA before surgery, group B received multiple local immersions during the operation, group C received an intravenous drip combined with multiple local immersions, and the control group (group CG) were not treated with TXA during the same period. The total blood loss (TBL), intraoperative blood loss (IBL), hidden blood loss (HBL), postoperative drainage volume, maximum hemoglobin drop value (max Hb drop), liver and kidney function, coagulation indexes, blood transfusion rate, hospital stay and incidence of complications were compared among the four groups. Results TBL, IBL, HBL, max Hb drop, POD1 drainage, and POD2 drainage in group A, group B, and group C were significantly lower than those in group CG. TBL, IBL, HBL and max Hb drop were group C < group A < group B < group CG. The drainage volume of group C was significantly lower than that of the other groups. There was no significant difference in blood coagulation index (PT, D-D) or liver and kidney function (ALT, Cr) among the four groups. There was no difference in postoperative hospital stay between group A and group B, but it was significantly lower in group C than in the other three groups. All patients achieved satisfactory bone graft fusion at the last follow-up. Conclusion Preoperative intravenous drip of TXA combined with intraoperative multiple immersion can effectively reduce perioperative blood loss while not increasing the risk of thrombosis without affecting liver and kidney function, coagulation function or tuberculosis prognosis.
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Affiliation(s)
- Bowen Zheng
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Musculoskeletal Tumor Center, Peking University People's Hospital, Peking University, Beijing, China
| | - Boyv Zheng
- Department of Orthopedics Surgery, General Hospital of the Central Theater Command, Wuhan, China
| | - Huaqing Niu
- Department of Orthopedics Surgery, General Hospital of the Central Theater Command, Wuhan, China
| | - Xiaobin Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jing Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Correspondence: Jing Li Jingyu Wang
| | - Jingyu Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
- Correspondence: Jing Li Jingyu Wang
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15
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Song C, Wen H, Liu G, Ma X, Lv G, Wu N, Chen J, Xue M, Li H, Xu P. Gut Microbes Reveal Pseudomonas Medicates Ingestion Preference via Protein Utilization and Cellular Homeostasis Under Feed Domestication in Freshwater Drum, Aplodinotus grunniens. Front Microbiol 2022; 13:861705. [PMID: 35722333 PMCID: PMC9204248 DOI: 10.3389/fmicb.2022.861705] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/02/2022] [Indexed: 12/15/2022] Open
Abstract
With strong demand for aquatic products, as well as a rapid decrease in global fishery resources and capture fisheries, domesticating animals to provide more high-quality proteins is meaningful for humans. Freshwater drum (Aplodinotus grunniens) is widely distributed in the wild habitats of North America. However, the research on A. grunniens and the feed domestication with diets composed of artificial compounds remains unclear. In this study, a 4-month feeding domestication experiment was conducted with A. grunniens larvae to evaluate the underlying mechanism and molecular targets responsible for alternations in the ingestion performance. The results indicated that a significant increase in the final body weight was exhibited by the feed domesticated group (DOM, 114.8 g) when compared to the group that did not ingest the feed (WT, 5.3 g) as the latest version we raised From the result, the final body weight exhibited significant increase between unfavorable with the feed (WT, 5.3 g) and feed domesticated group (DOM, 114.8 g). In addition, the enzyme activity of digestive enzymes like amylase, lipase, and trypsin was increased in DOM. Genes related to appetite and perception, such as NPY4R, PYY, and LEPR, were activated in DOM. 16s rRNA gene sequencing analysis revealed that Pseudomonas sp. increased from 58.74% to 89.77% in DOM, which accounts for the dominant upregulated microbial community at the genus level, followed by Plesiomonas. Analogously, Mycobacterium, Methylocystis, and Romboutsia also accounted for the down-regulated microbes in the diversity. Transcriptome and RT-PCR analysis revealed that feed domestication significantly improved protein digestion and absorption, inhibited apoptosis by AGE-RAGE signaling, and activated extracellular matrix remodeling by relaxin signaling. Integrated analysis of the microbiome and host transcriptome revealed that Pseudomonas-mediated ingestion capacity, protein utilization, and cellular homeostasis might be the underlying mechanism under feed domestication. These results indicate Pseudomonas and its key genes relating to food ingestion and digestion could serve as the molecular targets for feed domestication and sustainable development in A. grunniens.
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Affiliation(s)
- Changyou Song
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Haibo Wen
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Guangxiang Liu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Xueyan Ma
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Guohua Lv
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Ningyuan Wu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Jianxiang Chen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Miaomiao Xue
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Hongxia Li
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - Pao Xu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
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16
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Tan R, Lv X, Wu P, Li Y, Dai Y, Jiang B, Ren B, Lv G, Wang B. Learning Curve and Initial Outcomes of Full-Endoscopic Posterior Lumbar Interbody Fusion. Front Surg 2022; 9:890689. [PMID: 35574552 PMCID: PMC9096087 DOI: 10.3389/fsurg.2022.890689] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 04/11/2022] [Indexed: 11/13/2022] Open
Abstract
Study DesignThis was a retrospective cohort study.ObjectiveWe evaluated the feasibility, safety, and accuracy of full-endoscopic posterior lumbar interbody fusion (FE-PLIF) by assessing the learning curve and initial clinical outcomes.Summary of Background DataLow back pain is one of the crucial medical conditions worldwide. FE-PLIF has been reported to be a minimally invasive method to treat mechanical low back pain, but there lacks a thorough evaluation on this new technique.MethodsThe patients were divided into three groups in the order of operating date, implying that Group A consisted of the initial 12 cases, Group B the subsequent 12 cases, and Group C the last 12 cases. The data of patients were reviewed for gender, age, preoperative symptoms, satisfaction, as well as clinical outcomes demonstrated by visual analog scale (VAS). The operative time and intraoperative fluoroscopy were recorded to demonstrate the learning curve and the extent of radiographic exposure. Statistical significance was set at a p < 0.05 (two-sided).ResultsThe patients enrolled in this study were followed up at an average of 1.41 ± 0.24 years. Overall, patients were satisfied with the surgery. The average number of intraoperative fluoroscopy was 6.97 ± 0.74. A significant improvement was observed in the VAS of both lumbar pain and leg pain. The overall fusion rate was 77.7%. Complications were reported in two patients in Group A, one in Group B, and none in Group C. The average operative time showed a trend of gradual decline. The learning curve was characterized using a cubic regression analysis as y = –27.07x + 1.42x2–0.24x3 + 521.84 (R2 = 0.617, p = 0.000).ConclusionsFE-PLIF is an effective and safe method for treating low back pain caused by short-segmental degenerative diseases. The learning curve of this technique is steep at the initial stage but acceptable and shows great potential for improvement.
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Yin G, Lv G, Zhang J, Jiang H, Lai T, Yang Y, Ren Y, Wang J, Yi C, Chen H, Huang Y, Xiao C. Early-stage structure-based drug discovery for small GTPases by NMR spectroscopy. Pharmacol Ther 2022; 236:108110. [PMID: 35007659 DOI: 10.1016/j.pharmthera.2022.108110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/22/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 12/13/2022]
Abstract
Small GTPase or Ras superfamily, including Ras, Rho, Rab, Ran and Arf, are fundamental in regulating a wide range of cellular processes such as growth, differentiation, migration and apoptosis. They share structural and functional similarities for binding guanine nucleotides and hydrolyzing GTP. Dysregulations of Ras proteins are involved in the pathophysiology of multiple human diseases, however there is still a stringent need for effective treatments targeting these proteins. For decades, small GTPases were recognized as 'undruggable' targets due to their complex regulatory mechanisms and lack of deep pockets for ligand binding. NMR has been critical in deciphering the structural and dynamic properties of the switch regions that are underpinning molecular switch functions of small GTPases, which pave the way for developing new effective inhibitors. The recent progress of drug or lead molecule development made for small GTPases profoundly delineated how modern NMR techniques reshape the field of drug discovery. In this review, we will summarize the progress of structural and dynamic studies of small GTPases, the NMR techniques developed for structure-based drug screening and their applications in early-stage drug discovery for small GTPases.
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Affiliation(s)
- Guowei Yin
- The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China.
| | - Guohua Lv
- Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 511486, Guangdong, China
| | - Jerry Zhang
- University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC 27516, USA
| | - Hongmei Jiang
- The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Tianqi Lai
- Division of Histology & Embryology, Medical College, Jinan University, Guangzhou 511486, Guangdong, China
| | - Yushan Yang
- The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Yong Ren
- The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Jing Wang
- College of Life Sciences, Northwest University, Xi'an 710069, Shaanxi, China
| | - Chenju Yi
- The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Hao Chen
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi Province 710049, PR China; Research Institute of Xi'an Jiaotong University, Zhejiang, Hangzhou, Zhejiang Province 311215, PR China
| | - Yun Huang
- Howard Hughes Medical Institute, Chevy Chase 20815, MD, USA; Department of Physiology & Biophysics, Weill Cornell Medicine, New York 10065, NY, USA.
| | - Chaoni Xiao
- College of Life Sciences, Northwest University, Xi'an 710069, Shaanxi, China.
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18
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Li H, Long D, Lv G, Cheng X, Wang G, Yang X. The double-edged sword role of TGF-β signaling pathway between intrauterine inflammation and cranial neural crest development. FASEB J 2021; 36:e22113. [PMID: 34939699 DOI: 10.1096/fj.202101343r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/25/2021] [Accepted: 12/06/2021] [Indexed: 11/11/2022]
Abstract
Intrauterine infection would harm a developing embryo/fetus, thereby increasing the risk of developmental malformation. But, whether or not the infection-induced inflammation affects neural crest development still remains obscure. In this study, we employed meta-analysis to demonstrate the potential correlation between infection-induced inflammation and craniofacial anomalies, which was usually derived from the problems in neural crest cell development. The correlation was further verified by inflammatory cytokine release and the activation of nuclear factor kappa-light-chain enhancer of activated B cells signaling in lipopolysaccharide-treated HH10 chicken embryos. In such an inflammatory condition, AP-2α- and Pax7-labeled pre-migratory and migratory neural crest cells in HH10 chicken embryos were significantly less than the ones in control. The bioinformatics analysis of RNA-seq data demonstrated that the principal differential gene expression occurred in transforming growth factor-beta (TGF-β) signaling pathway, which was confirmed by the subsequent experimental results of quantitative PCR and immunofluorescent staining. Under this inflammatory circumstance, whole-mount in situ hybridization, immunofluorescence, and quantitative PCR showed the gene expression changes of key EMT-related transcription factors including upregulated Msx1, downregulated Slug, and FoxD3, as well as adhesion molecules and extracellular matrix protein including upregulated Cadherrin6B, E-cadherin, N-cadherin, and Laminin at the dorsal portion of neural tube of HH10 chicken embryos. Meanwhile, the bioinformatics analysis of RNA-seq data also manifested the differential gene expressions relevant to cell proliferation, which was confirmed by proliferating cell nuclear antigen Western blot data and co-immunofluorescence staining of human natural killer-1 and phosphorylated histone H3. In brief, this study revealed for the first time that the double-edged sword role of TGF-β signaling pathway between intrauterine inflammation (protective role) and cranial neural crest development (harmful role).
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Affiliation(s)
- Haiyang Li
- Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Jinan University, Guangzhou, China
| | - Denglu Long
- Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Jinan University, Guangzhou, China.,Medical Records Department, Quality and Safety Management Office, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Guohua Lv
- Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Jinan University, Guangzhou, China
| | - Xin Cheng
- Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Jinan University, Guangzhou, China
| | - Guang Wang
- Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Jinan University, Guangzhou, China
| | - Xuesong Yang
- Division of Histology and Embryology, International Joint Laboratory for Embryonic Development & Prenatal Medicine, Medical College, Jinan University, Guangzhou, China.,Key Laboratory for Regenerative Medicine of the Ministry of Education, Jinan University, Guangzhou, China
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19
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Song N, Kan S, Pang Q, Mei H, Zheng H, Li D, Cui F, Lv G, An R, Li P, Xiong Z, Fan S, Zhang M, Chen Y, Qiao Q, Liang X, Cui M, Li D, Liao Q, Li X, Liu W. A prospective study on vulvovaginal candidiasis: multicentre molecular epidemiology of pathogenic yeasts in China. J Eur Acad Dermatol Venereol 2021; 36:566-572. [PMID: 34908189 DOI: 10.1111/jdv.17874] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Vulvovaginal candidiasis (VVC) is frequent in women of reproductive age, but very limited data are available on the epidemiology in cases of VVC in China. OBJECTIVES The current study has been conducted to reveal the prevalence, species distribution of yeast causing VVC and molecular genetics of Candida albicans in China. METHODS Vaginal swabs were collected from 543 VVC outpatients recruited in 12 hospitals in China between September 2017 and March 2018. They were preliminarily incubated on Sabouraud dextrose agar and then positive subjects of which were then transmitted to our institute for further identification. CHROMagar™ was used to isolate Candida species, and all isolates were finally identified by DNA sequencing. Multilocus sequence typing (MLST) was used to analyse phylogenetic relationships of the various C. albicans isolates. RESULTS Eleven different yeast species were identified in 543 isolates, among which C. albicans (84.7%) was the most frequent, followed by C. glabrata (8.7%). We obtained 117 unique diploid sequence types from 451 clinical C. albicans isolates and 92 isolates (20.4%) belonged to a New Clade. All the strains appearing in the New Clade were from northern China and they were isolated from non-recurrent VVC. CONCLUSIONS Our findings suggest that C. albicans are still the main cause of VVC in China and the majority of C. albicans isolates belongs to Clade 1 with DST 79 and DST 45 being two most common. Moreover, the New Clade revealed in our study seems to be specific to northern China.
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Affiliation(s)
- N Song
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - S Kan
- Shanghai Skin Disease Hospital, Department of Medical Mycology, Tongji University School of Medicine, Shanghai, China
| | - Q Pang
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - H Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - H Zheng
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - D Li
- Department of Microbiology/Immunology, Georgetown University, Washington, DC, USA
| | - F Cui
- Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - G Lv
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - R An
- The First Affiliated Teaching Hospital of Xi'an Jiaotong University, Xi'an, China
| | - P Li
- Nanjing Maternity and Child Health Care Hospital, Women's Hospital of Nanjing Medical University, Nanjing, China
| | - Z Xiong
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Fan
- Peking University Shenzhen Hospital, Shenzhen, China
| | - M Zhang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Chen
- The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Q Qiao
- The Affiliated Hospital of Inner Mongolia Medical University, Huhehaote, China
| | - X Liang
- Peking University People's Hospital, Beijing, China
| | - M Cui
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - D Li
- The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Q Liao
- Department of Obstetrics and Gynecology, Beijing Tsinghua Changgung Hospital, School of Clinical Medical, Tsinghua University, Beijing, China
| | - X Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China.,Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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20
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Wang M, Huan Y, Li X, Li J, Lv G. RUNX3 derived hsa_circ_0005752 accelerates the osteogenic differentiation of adipose-derived stem cells via the miR-496/MDM2-p53 pathway. Regen Ther 2021; 18:430-440. [PMID: 34754888 PMCID: PMC8546365 DOI: 10.1016/j.reth.2021.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 12/18/2022] Open
Abstract
Background Circular RNAs (circRNAs) are non-coding RNAs that play a pivotal role in bone diseases. RUNX3 was an essential transcriptional regulator during osteogenesis. However, it is unknown whether RUNX3 regulates hsa_circ_0005752 during osteogenic differentiation. Methods The levels of hsa_circ_0005752 and RUNX3 were measured by qRT-PCR after osteogenic differentiation of ADSCs. The osteogenic differentiation was analyzed by Alkaline phosphatase (ALP) staining and Alizarin red staining (ARS). qRT-PCR and western blot were used to assess the expressions of osteogenic differentiation-related molecules. RNA pull-down, RIP, and luciferase reporter assays determine the interactions between miR-496 and hsa_circ_0005752 or MDM2 mRNA. CHIP-PCR analyzed the interaction between RUNX3 and LPAR1. Finally, the potential roles of RUNX3 were investigated during osteogenic differentiation with or without hsa_circ_0005752 knockdown. Results Hsa_circ_0005752 and RUNX3 were significantly increased, and miR-496 was remarkably decreased in ADSCs after osteogenic differentiation. Hsa_circ_0005752 could promote osteogenic differentiation, as shown by enhancing ALP and ARS staining intensity. Hsa_circ_0005752 enhanced the expressions of Runx2, ALP, Osx, and OCN. Furthermore, hsa_circ_0005752 directly targeted miR-496, which can directly bind to MDM2. RUNX3 bound to the LPAR1 promoter and enhanced hsa_circ_0005752 expressions. Moreover, the enhanced expression of hsa_circ_0005752 by RUNX3 could promote osteogenic differentiation, whereas knockdown of hsa_circ_0005752 partially antagonized the effects of RUNX3. Conclusion Our study demonstrated that RUNX3 promoted osteogenic differentiation via regulating the hsa_circ_0005752/miR-496/MDM2 axis and thus provided a new therapeutic strategy for osteoporosis.
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Key Words
- 3′ UTR, 3′ untranslated region
- ADSCs, adipose-derived stem cells
- ALP, alkaline phosphatase
- ARS, Alizarin Red Staining
- Adipose-derived stem cells
- BCA, bicinchoninic acid
- BM-MSCs, Bone Marrow-Mesenchymal Stem Cells
- BMP2, Bone morphogenetic protein 2
- ChIP, chromatin immunoprecipitation
- Circular RNAs
- ECL, enhanced chemiluminescence
- H&E staining, Hematoxylin and Eosin staining
- LPAR1, lysophosphatidic acid receptor 1
- MDM2
- MDM2, murine double minute 2
- OCN, osteocalcin
- OM, osteogenic (differentiation) medium
- Osteogenic differentiation
- Osx, osterix
- PMSF, phenylmethylsulfonyl fluoride
- RIP, RNA immunoprecipitation
- RUNX3
- Runx2, Runt-related transcription factor 2
- Runx3, RUNX Family Transcription Factor 3
- SDS-PAGE, polyacrylamide gel electrophoresis
- UC-MSCs, Umbilical Cord-Mesenchymal Stem Cells
- circRNAs, Circular RNAs
- miRNAs, microRNA
- microRNA
- qRT-PCR, quantitative real-time polymerase chain reaction
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Affiliation(s)
- Ming Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, PR China.,Department of Spine Surgery, The First Affiliated Hospital of University of South China, Hengyang 421001, Hunan Province, PR China
| | - Yifan Huan
- Department of Orthopedics, Financial and Trade Hospital of Hunan Province, Changsha 410001, Hunan Province, PR China
| | - Xiyang Li
- Department of Orthopedics, Financial and Trade Hospital of Hunan Province, Changsha 410001, Hunan Province, PR China
| | - Jing Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, PR China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha 410011, Hunan Province, PR China
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21
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Xia Y, Zou R, Escouboué M, Zhong L, Zhu C, Pouzet C, Wu X, Wang Y, Lv G, Zhou H, Sun P, Ding K, Deslandes L, Yuan S, Zhang ZM. Secondary-structure switch regulates the substrate binding of a YopJ family acetyltransferase. Nat Commun 2021; 12:5969. [PMID: 34645811 PMCID: PMC8514532 DOI: 10.1038/s41467-021-26183-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 09/21/2021] [Indexed: 11/11/2022] Open
Abstract
The Yersinia outer protein J (YopJ) family effectors are widely deployed through the type III secretion system by both plant and animal pathogens. As non-canonical acetyltransferases, the enzymatic activities of YopJ family effectors are allosterically activated by the eukaryote-specific ligand inositol hexaphosphate (InsP6). However, the underpinning molecular mechanism remains undefined. Here we present the crystal structure of apo-PopP2, a YopJ family member secreted by the plant pathogen Ralstonia solanacearum. Structural comparison of apo-PopP2 with the InsP6-bound PopP2 reveals a substantial conformational readjustment centered in the substrate-binding site. Combining biochemical and computational analyses, we further identify a mechanism by which the association of InsP6 with PopP2 induces an α-helix-to-β-strand transition in the catalytic core, resulting in stabilization of the substrate recognition helix in the target protein binding site. Together, our study uncovers the molecular basis governing InsP6-mediated allosteric regulation of YopJ family acetyltransferases and further expands the paradigm of fold-switching proteins.
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Affiliation(s)
- Yao Xia
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China
| | - Rongfeng Zou
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 518005, Shenzhen, China
| | - Maxime Escouboué
- Laboratoire des Interactions Plantes-Microbes-Environnement (LIPME), INRAE, CNRS, Université de Toulouse, 31326, Castanet-Tolosan, France
| | - Liang Zhong
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China
| | - Chengjun Zhu
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China
| | - Cécile Pouzet
- FRAIB-TRI Imaging Platform Facilities, FR AIB, Université de Toulouse, CNRS, 31320, Castanet-Tolosan, France
| | - Xueqiang Wu
- Institute for Pharmaceutical Analysis, College of Pharmacy, Jinan University, 510632, Guangzhou, China
| | - Yongjin Wang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China
| | - Guohua Lv
- Division of Histology & Embryology, Medical College, Jinan University, 510632, Guangzhou, China
| | - Haibo Zhou
- Institute for Pharmaceutical Analysis, College of Pharmacy, Jinan University, 510632, Guangzhou, China
| | - Pinghua Sun
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China.
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China.
| | - Ke Ding
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China.
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China.
| | - Laurent Deslandes
- Laboratoire des Interactions Plantes-Microbes-Environnement (LIPME), INRAE, CNRS, Université de Toulouse, 31326, Castanet-Tolosan, France.
| | - Shuguang Yuan
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, 518005, Shenzhen, China.
| | - Zhi-Min Zhang
- International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), College of Pharmacy, Jinan University, 510632, Guangzhou, China.
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, 510632, Guangzhou, China.
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22
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Pan C, Wang G, Li Y, Kuang L, Sun J, Lv G. Predictive model of global tilt (GT) determined by individual thoracic kyphosis, lumbar lordosis and pelvic incidence in the human degenerative spine. Eur Spine J 2021; 30:3191-3199. [PMID: 34331586 DOI: 10.1007/s00586-021-06947-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/16/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Previous studies only investigated the simple linear relationships of global tilt (GT) with thoracic kyphosis (TK), lumbar lordosis (LL) and pelvic incidence (PI). This study aimed to establish multiple linear regressions of GT based on individual TK, LL and PI in patients with degenerative spines. METHODS Four hundred sixty-nine adult patients aged older than 35 years with various degenerative spinal diseases were enrolled in this two-centre study between January 2017 and December 2020. Full-spine X-rays were performed for all the subjects in a standing position. The following regional and global parameters were measured in the sagittal plane: TK, LL, PI, pelvic tilt (PT), sagittal vertical axis (SVA) and GT. The correlations of the GT, PT and SVA with the TK, LL and PI were analysed, and then multiple linear regressions were constructed. RESULTS GT was statistically correlated with TK, LL and PI. Additionally, TK, LL and PI were significant predictors for the GT, PT and SVA models. The relevant predictive formulae were as follows: GT = -9.60 + 1.09*PI + 0.89*LL + 0.42*TK (R2 = 0.935), PT = -4.49 + 0.81*PI + 0.56*LL + 0.24*TK (R2 = 0.792) and SVA = -25.68 + 2.98*LL + 2.37*PI + 1.67*TK (R2 = 0.416). CONCLUSION The specific sagittal spinopelvic morphology, evaluated by GT parameters, should be determined by individual TK, LL and PI values in the degenerative spine. Surgeons can utilize such predictive models to better understand the degenerative evolution of sagittal alignment and recognize the relationships between regional parameters and global sagittal alignment to customize a precise correction strategy.
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Affiliation(s)
- Changyu Pan
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Guodong Wang
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Yunchao Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China
| | - Jianmin Sun
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, Hunan, People's Republic of China.
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23
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Zhang M, Wu Q, Zhao R, Yao X, Du X, Liu Q, Lv G, Xiao S. Isobavachalcone ameliorates cognitive deficits, and Aβ and tau pathologies in triple-transgenic mice with Alzheimer's disease. Food Funct 2021; 12:7749-7761. [PMID: 34269361 DOI: 10.1039/d1fo01306h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that affects 50 million people worldwide. The current medicines have modest benefits in preventing or curing AD. Thus, it is urgent to discover drugs with the potential to change the progression of the disease. The primary clinical symptoms are memory loss and anxiety, while the critical pathological characteristics are Aβ plaques and hyperphosphorylated tau tangles. In this study, isobavachalcone (ISO), isolated from Psoralea corylifolia, was administered to 3×Tg-AD mice. It has been shown that this compound could significantly improve anxiety, memory and recognition deficits in the AD mice, attenuate the accumulation of Aβ oligomers, reduce the hyperphosphorylation of tau, and prevent the production of tau filaments. The metabolomic analysis implicates that the most probable pathways affected by ISO were bile secretion, tyrosine metabolism, and purine metabolism. In summary, ISO possesses the potential for further development as a drug candidate for AD.
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Affiliation(s)
- Mohan Zhang
- Shenzhen Key Laboratory of Marine Biotechnology and Ecology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, Guangdong 518060, China.
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24
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Luo Z, Ni J, Lv G, Wei J, Liu L, Peng P, Dong Z. Distally Based Sural Fasciocutaneous Flaps for Reconstructing Soft Tissue Defects Proximal and Distal to the Tarsometatarsal Joints: A Comparative Analysis. INT J LOW EXTR WOUND 2021; 22:251-258. [PMID: 33856240 DOI: 10.1177/15347346211002333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Distally based sural fasciocutaneous (DBSF) flaps are widely used for reconstructing soft tissue defects of the foot. The purpose of this paper was to compare the clinical efficacy of the use of flaps to repair defects in areas proximal and distal to the level of the tarsometatarsal joints in a relatively large number of patients and to analyze the effects of factors on the risk of developing partial necrosis of the flaps. Between April 2001 and December 2019, a total of 355 DBSF flaps were utilized to cover soft tissue defects in the foot. According to the furthest location of the defects reconstructed with the flaps, the flaps were divided into the proximal foot group (n = 260) and the distal foot group (n = 95). The partial necrosis rates, their influencing factors, and the clinical outcomes of the procedure were compared between the two groups. In the proximal foot group, the partial necrosis rate (6.2%, 16 of 260) was significantly lower than that in the distal foot group (14.7%, 14 of 95) (P < .05). The proportion of successful coverage of the defects using the flaps alone or in combination with a simple salvage treatment was comparable between the groups (P > .05). The ratio of unfavorable conditions in the distal foot group was higher than that in the proximal foot group (P < .05). DBSF flaps can be effectively utilized to repair defects in the proximal and distal areas of the foot. The use of a DBSF flap to repair defects in the proximal areas of the foot is superior to the use of DBSF flaps for repairing defects in the distal areas of the foot in terms of reliable survival of the flap.
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Affiliation(s)
- Zhaobiao Luo
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Jiangdong Ni
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Guohua Lv
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Jianwei Wei
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Lihong Liu
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Ping Peng
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Zhonggen Dong
- 70566The Second Xiangya Hospital, Central South University, Changsha, People's Republic of China
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25
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Luo Z, Ni J, Lv G, Wei J, Liu L, Peng P, Dong Z. Utilisation of distally based sural fasciocutaneous flaps in lower extremity reconstruction: a single-centre experience with 88 paediatric patients. J Orthop Surg Res 2021; 16:52. [PMID: 33441179 PMCID: PMC7805089 DOI: 10.1186/s13018-021-02206-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND No large series have analysed distally based sural fasciocutaneous (DBSF) flaps in paediatric patients. The aims of this study were to assess the reliability and analyse the potential risk factors for these flaps and to describe complications in the donor site and the functional follow-up results. METHODS Between June 2002 and November 2017, 88 DBSF flaps were used to reconstruct soft tissue defects in paediatric patients. Potential risk factors, reconstruction outcomes, and complications in the donor site of the flaps were analysed. RESULTS Among the 88 flaps, partial necrosis developed in 8 flaps (9.1%). The partial necrosis rate was significantly higher in flaps with the top edge located in the 9th zone (26.1%), with a length-width ratio (LWR) ≥ 5:1 (28.6%), and with a dimension of the skin island ≥ 100 cm2 (22.7%). Partial necrosis did not occur in flaps with a dimension of the skin island < 80.0 cm2 or with a skin-island width < 7.0 cm. The reconstruction outcomes in most paediatric patients were evaluated as "excellent" or "good". The incidence of obvious scarring was higher in the donor site. CONCLUSIONS Partial necrosis of DBSF flaps will significantly increase when the top edge of the flap is located in the 9th zone, when the LWR of the flap is ≥ 5:1, or when the dimension of the skin island is ≥ 100.0 cm2. Flaps with a skin-island width < 7.0 cm or with a dimension of the skin island < 80 cm2 are relatively safe and reliable.
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Affiliation(s)
- Zhaobiao Luo
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Jiangdong Ni
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Jianwei Wei
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Lihong Liu
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Ping Peng
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Zhonggen Dong
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China.
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Peng P, Luo Z, Lv G, Ni J, Wei J, Dong Z. Distally based peroneal artery perforator-plus fasciocutaneous flap in the reconstruction of soft tissue defects over the distal forefoot: a retrospectively analyzed clinical trial. J Orthop Surg Res 2020; 15:487. [PMID: 33087146 PMCID: PMC7579933 DOI: 10.1186/s13018-020-02019-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 10/14/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Distally based peroneal artery perforator-plus fasciocutaneous (DPAPF) flaps are widely used for reconstructing soft-tissue defects of the lower extremity. However, reports on the reconstruction of the defects over the distal forefoot using the DPAPF flaps are scarce. Herein, we describe our experience on the reconstruction of these defects using DPAPF flaps in a considerable sample size. METHODS Between February 2005 and August 2019, a total of 56 DPAPF flaps in 56 patients were used to reconstruct soft-tissue defects in the forefoot. In order to reduce the length of fascial pedicle and the total length of the DPAPF flaps, the ankles were fixed in dorsiflexion using a Kirschner wire before designing the flaps. The flaps were elevated by the anterograde-retrograde approach. Patient factors and flap factors were compared between the "survival" and "partial necrosis" groups. RESULTS Overall, 47 flaps had survived completely in one stage. Partial necrosis developed in nine flaps, with only one remnant defect covered using a local flap. By fixing the ankles in dorsiflexion, the length of the fascial pedicle was reduced approximately 2.35 ± 0.58 cm, the total length of the flap was simultaneously shortened by the same amount as the length of the fascial pedicle. The width of the fascia pedicle varied from 3.0 cm to 6.0 cm. The fascial pedicle width > 4 cm was found in 21 flaps. The partial necrosis rate of the DPAPF flaps with the top edge located in the 8th zone was significantly lower than that in the 9th zone (p < 0.05). CONCLUSIONS The DPAPF flaps can be effectively used to reconstruct the defects over the distal forefoot because of convenient harvest and reliability. By fixing the ankle in dorsiflexion with Kirschner wire and widening the fascial pedicle appropriately, the top edge and LWR of the flaps will be decreased, and thus the procedures are helpful for the flaps survival.
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Affiliation(s)
- Ping Peng
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, People's Republic of China
| | - Zhaobiao Luo
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, People's Republic of China
| | - Jiangdong Ni
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, People's Republic of China
| | - Jianwei Wei
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, People's Republic of China
| | - Zhonggen Dong
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, No. 139 Renmin Road, Changsha, 410011, People's Republic of China.
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Yang Y, Wang P, Zheng J, Lv G, Mao R, Zhou D. Cerebral fungal abscess resembling high-grade glioma: A case report in an immunocompromised patient. Neurochirurgie 2020; 66:494-496. [PMID: 33053402 DOI: 10.1016/j.neuchi.2020.09.002] [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] [Received: 05/14/2020] [Revised: 06/29/2020] [Accepted: 09/02/2020] [Indexed: 11/26/2022]
Affiliation(s)
- Y Yang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - P Wang
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - J Zheng
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - G Lv
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - R Mao
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China
| | - D Zhou
- Department of Neurosurgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, No. 106, Zhongshan Er Road, 510080 Guangzhou, Yuexiu District, P.R.China.
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Li L, Lv G, Wang B, Ma H. Long Non-Coding RNA KCNQ1OT1 Promotes Multidrug Resistance in Chordoma by Functioning as a Molecular Sponge of miR-27b-3p and Subsequently Increasing ATF2 Expression. Cancer Manag Res 2020; 12:7847-7853. [PMID: 32922083 PMCID: PMC7457737 DOI: 10.2147/cmar.s250611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 02/20/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022] Open
Abstract
Background Chordoma, a rare bone tumor, occurs most commonly at the sacrococcygeal and skull base region. To date, chemotherapy is used to treat patients with advanced-stage chordoma. However, multidrug resistance (MDR) greatly hinders the effect of chemotherapy in chordoma. Here, we studied the correlation between KCNQ1OT1 and chemotherapy resistance. Methods RT-PCR assay was used to examine KCNQ1OT1, miR-27b-3p, and ATF2 mRNA expression. CCK8 assay was exercised to detect IC50 values of cisplatin in chordoma cells. ATF2 protein expression was detected by Western blot. Results KCNQ1OT1 was increased in chemotherapy-resistant patients and cisplatin-resistant cells, and downregulation of KCNQ1OT1 expression weakened MDR in chordoma. In addition, KCNQ1OT1 promoted MDR in chordoma by sponging miR-27b-3p and subsequently increasing ATF2 expression. Conclusion KCNQ1OT1 is proved to be strikingly raised in the chemotherapy-resistant group and to promote MDR in chordoma. Our findings demonstrated the role of the KCNQ1OT1/miR-27b-3p/ATF2 axis in MDR of chordoma, which provides new insight into the molecular mechanism of chordoma MDR, and may determine the effect of therapy after receiving chemotherapy by detecting the expression of KCNQ1OT1 in serum.
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Affiliation(s)
- Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Hong Ma
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
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Luo Z, Dong Z, Ni J, Wei J, Peng P, Lv G. Distally Based Peroneal Artery Perforator-Plus Fasciocutaneous Flap to Reconstruct Soft Tissue Defect Combined With Chronic Osteomyelitis in the Lateral Malleolus. INT J LOW EXTR WOUND 2020; 21:464-470. [PMID: 32912022 DOI: 10.1177/1534734620956782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Distally based peroneal artery perforator-plus fasciocutaneous (DPAPF) flaps are widely used to reconstruct soft tissue defects of the lower extremity. Treatment for soft tissue defect combined with chronic osteomyelitis in the lateral malleolus has rarely been reported. The aim of this study was to elaborate the superiority of the DPAPF flap and provide referential experience for using the DPAPF flap in this situation. Between June 2010 and December 2017, soft tissue defects in the setting of chronic osteomyelitis in the lateral malleolus were reconstructed with DPAPF flaps in 17 patients. After thorough debridement, the defect was repaired with the DPAPF flap, and patients subsequently followed an antibiotic regimen for 6 weeks. Follow-up periods for all patients were at least 24 months. The reconstruction outcomes and the satisfaction of the 17 patients were evaluated. Of the 17 flaps, 16 survived uneventfully, except one occurrence of partial necrosis. No infection occurred in the follow-up period. In the study, 17 patients except one were satisfied with flap appearance. All the patients were satisfied with the reconstruction outcomes. In a one-stage procedure, the use of DPAPF flaps is ideal for reconstructing soft tissue defects in the setting of chronic osteomyelitis in the lateral malleolus.
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Affiliation(s)
- Zhaobiao Luo
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhonggen Dong
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiangdong Ni
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jianwei Wei
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ping Peng
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guohua Lv
- The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Li L, Lv G, Wang B, Ma H. Long Noncoding RNA LINC00525 Promotes the Aggressive Phenotype of Chordoma Through Acting as a microRNA-505-3p Sponge and Consequently Raising HMGB1 Expression. Onco Targets Ther 2020; 13:9015-9027. [PMID: 32982292 PMCID: PMC7490091 DOI: 10.2147/ott.s268678] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Accepted: 08/11/2020] [Indexed: 12/13/2022] Open
Abstract
Purposes Long intergenic non-protein coding RNA 525 (LINC00525), a long noncoding RNA, has been implicated in the carcinogenesis and progression of many human cancer types. However, the detailed roles of LINC00525 in chordoma and the underlying mechanisms are not fully understood. Here, we aimed to determine whether LINC00525 could modulate the oncogenicity of chordoma cells and to elucidate in detail the molecular events underlying these tumor-promoting activities. Methods Reverse-transcription quantitative polymerase chain reactions were performed to assess LINC00525 expression in chordoma. The effects of LINC00525 silencing on chordoma cell proliferation, apoptosis, migration, and invasiveness in vitro and tumor growth in vivo were respectively tested using CCK-8 assay, flow cytometry, migration and invasion assays, and xenograft experiments. Results High LINC00525 expression levels were detected in chordoma tissues. The proliferative, migratory, and invasive abilities of chordoma cells in vitro and their tumor growth in vivo were suppressed by the LINC00525 knockdown, whereas apoptosis was induced by it. Mechanistically, LINC00525 acted as a molecular sponge of microRNA-505-3p (miR-505-3p) and upregulated the expression of high mobility group box 1 (HMGB1), which is directly targeted by miR-505-3p. Rescue assays indicated that increasing the output of miR-505-3p-HMGB1 axis attenuated the effects of LINC00525 depletion on chordoma cells. Conclusion LINC00525, a pro-oncogenic long noncoding RNA, promotes chordoma progression by regulating the miR-505-3p-HMGB1 axis. The LINC00525-miR-505-3p-HMGB1 pathway may be a novel therapeutic target in chordoma.
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Affiliation(s)
- Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Hong Ma
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
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Huang Y, Wang X, Lv G, Razavi AM, Huysmans GHM, Weinstein H, Bracken C, Eliezer D, Boudker O. Use of paramagnetic 19F NMR to monitor domain movement in a glutamate transporter homolog. Nat Chem Biol 2020; 16:1006-1012. [PMID: 32514183 PMCID: PMC7442671 DOI: 10.1038/s41589-020-0561-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/07/2020] [Indexed: 12/17/2022]
Abstract
In proteins where conformational changes are functionally important, the number of accessible states and their dynamics are often difficult to establish. Here we describe a novel 19F-NMR spectroscopy approach to probe dynamics of large membrane proteins. We labeled a glutamate transporter homolog with a 19F probe via cysteine chemistry and with a Ni2+ ion via chelation by a di-histidine motif. We used distance-dependent enhancement of the longitudinal relaxation of 19F nuclei by the paramagnetic metal to assign the observed resonances. We identified one inward- and two outward-facing states of the transporter, in which the substrate-binding site is near the extracellular and intracellular solutions, respectively. We then resolved the structure of the unanticipated second outward-facing state by cryo-EM. Finally, we showed that the rates of the conformational exchange are accessible from measurements of the metal-enhanced longitudinal relaxation of 19F nuclei.
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Affiliation(s)
- Yun Huang
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Xiaoyu Wang
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Guohua Lv
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, USA
- Division of Histology & Embryology, Medical College, Jinan University, Guangzhou, China
| | - Asghar M Razavi
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Gerard H M Huysmans
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Harel Weinstein
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Clay Bracken
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, USA
| | - David Eliezer
- Department of Biochemistry, Weill Cornell Medicine, New York, NY, USA.
| | - Olga Boudker
- Department of Physiology & Biophysics, Weill Cornell Medicine, New York, NY, USA.
- Howard Hughes Medical Institute, Chevy Chase, MD, USA.
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Li L, Wang B, Li Y, Li L, Dai Y, Lv G, Wu P, Li P. Celastrol regulates bone marrow mesenchymal stem cell fate and bone-fat balance in osteoporosis and skeletal aging by inducing PGC-1α signaling. Aging (Albany NY) 2020; 12:16887-16898. [PMID: 32723973 PMCID: PMC7521495 DOI: 10.18632/aging.103590] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 08/18/2019] [Accepted: 06/13/2020] [Indexed: 01/24/2023]
Abstract
Celastrol has recently been identified as a prospective new treatment for obesity and several metabolic complications. However, the effect of Celastrol in osteoporosis (OP) remains unknown. In this study, we demonstrated that Celastrol promotes osteoblast differentiation and prevents adipocyte differentiation in bone marrow mesenchymal stem cells (BM-MSCs) in vitro. Mechanistically, Celastrol was able to control the differentiation of BM-MSCs by stimulating PGC-1α signaling. Moreover, administration of Celastrol could alleviate bone loss and bone marrow adipose tissue (MAT) accumulation in ovariectomized (OVX) mice and aged mice. Together, these results recommended that Celastrol could regulate BM-MSCs fate and bone-fat balance in OP and skeletal aging by stimulating PGC-1α, which might act as a possible therapeutic target for OP and for the prevention of skeletal aging.
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Affiliation(s)
- Li Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Yawei Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Yuliang Dai
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Pengfei Wu
- Center for Medical Genetics, School of Life Sciences, Central South University, Changsha 410011, Hunan, China
| | - Pengzhi Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
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Pan Y, Chen D, Hu T, Lv G, Dai Z. Characteristics and Prognostic Factors of Patients With Osteosarcoma Older Than 60 Years From the SEER Database. Cancer Control 2020; 26:1073274819888893. [PMID: 31773978 PMCID: PMC6882037 DOI: 10.1177/1073274819888893] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Indexed: 01/23/2023] Open
Abstract
Osteosarcoma is predominant in the adolescent and the elderly population, but few studies have described the characteristics and prognostic factors of patients older than 60 years. In this study, the Surveillance, Epidemiology, and End Results registry database was used to identify all patients diagnosed with primary osteosarcoma from 1973 to 2014. We utilized Cox proportional hazards regression analysis to evaluate the association between patient overall survival and relevant characteristics, including gender, race, disease stage, treatment methods, primary tumor site, differentiation grade, and histologic subtype. In the data set, a total of 1139 patients with osteosarcoma older than 60 years old were identified. The overall rate of distant metastatic cases was 28.6%. Osteosarcoma occurred equally in men and women (49.5% vs 50.5%). Of all, 41.3% of tumors were located in axial location (pelvis, spine, and ribs), 34.1% of tumors were located in extremity (long or short bones of the upper or lower extremity), and 24.6% in other location (mandible, skull, and other atypical locations). Male (hazard ratio [HR] = 1.201; 95% confidence interval [CI]: 1.056-1.366), axial location (HR = 1.342; 95% CI: 1.157-1.556), distant metastasis (HR = 2.369; 95% CI: 2.015-2.785), non-surgery perform (HR = 2.108; 95% CI: 1.814-2.451) were independent risk factors for 5-year overall survival. This study revealed distinct clinicopathological features of patients with osteosarcoma older than 60 years. Male gender, tumor in axial site, nonsurgery perform, and distant metastasis indicated worse prognosis survival. Performing surgery is still an effective and reliable treatment method for patients older than 60 years.
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Affiliation(s)
- Yue Pan
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Daqi Chen
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Taobo Hu
- Department of Orthopaedics, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Zhehao Dai
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
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Ardah MT, Ghanem SS, Abdulla SA, Lv G, Emara MM, Paleologou KE, Vaikath NN, Lu JH, Li M, Vekrellis K, Eliezer D, El-Agnaf OMA. Inhibition of alpha-synuclein seeded fibril formation and toxicity by herbal medicinal extracts. BMC Complement Med Ther 2020; 20:73. [PMID: 32143619 PMCID: PMC7076823 DOI: 10.1186/s12906-020-2849-1] [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: 11/18/2019] [Accepted: 02/11/2020] [Indexed: 12/15/2022] Open
Abstract
Background Recent studies indicated that seeded fibril formation and toxicity of α-synuclein (α-syn) play a main role in the pathogenesis of certain diseases including Parkinson’s disease (PD), multiple system atrophy, and dementia with Lewy bodies. Therefore, examination of compounds that abolish the process of seeding is considered a key step towards therapy of several synucleinopathies. Methods Using biophysical, biochemical and cell-culture-based assays, assessment of eleven compounds, extracted from Chinese medicinal herbs, was performed in this study for their effect on α-syn fibril formation and toxicity caused by the seeding process. Results Salvianolic acid B and dihydromyricetin were the two compounds that strongly inhibited the fibril growth and neurotoxicity of α-syn. In an in-vitro cell model, these compounds decreased the insoluble phosphorylated α-syn and aggregation. Also, in primary neuronal cells, these compounds showed a reduction in α-syn aggregates. Both compounds inhibited the seeded fibril growth with dihydromyricetin having the ability to disaggregate preformed α-syn fibrils. In order to investigate the inhibitory mechanisms of these two compounds towards fibril formation, we demonstrated that salvianolic acid B binds predominantly to monomers, while dihydromyricetin binds to oligomeric species and to a lower extent to monomers. Remarkably, these two compounds stabilized the soluble non-toxic oligomers lacking β-sheet content after subjecting them to proteinase K digestion. Conclusions Eleven compounds were tested but only two showed inhibition of α-syn aggregation, seeded fibril formation and toxicity in vitro. These findings highlight an essential beginning for development of new molecules in the field of synucleinopathies treatment.
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Affiliation(s)
- Mustafa T Ardah
- Department of Biochemistry, College of Medicine and Health Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Simona S Ghanem
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Education City, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - Sara A Abdulla
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Education City, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - Guohua Lv
- Department of Biochemistry, Weill Cornell Medical College, New York, NY, USA
| | - Mohamed M Emara
- Basic Medical Sciences Department, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - Katerina E Paleologou
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Nishant N Vaikath
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Education City, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - Jia-Hong Lu
- State Key Lab of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China
| | - Min Li
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Konstantinos Vekrellis
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527, Athens, Greece
| | - David Eliezer
- Department of Biochemistry, Weill Cornell Medical College, New York, NY, USA
| | - Omar M A El-Agnaf
- Neurological Disorders Research Center, Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Education City, Qatar Foundation, P.O. Box 5825, Doha, Qatar.
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Li L, Lv G, Wang B, Kuang L. Corrigendum. J Cell Physiol 2020; 235:4979. [PMID: 32048738 DOI: 10.1002/jcp.29364] [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: 11/09/2022]
Affiliation(s)
- Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
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Luo Z, Lv G, Wei J, Ni J, Liu L, Peng P, Dong Z. Comparison between distally based peroneal and posterior tibial artery perforator-plus fasciocutaneous flap for reconstruction of the lower extremity. Burns 2020; 46:225-233. [DOI: 10.1016/j.burns.2019.06.002] [Citation(s) in RCA: 3] [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: 01/18/2019] [Revised: 05/26/2019] [Accepted: 06/04/2019] [Indexed: 10/25/2022]
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Lv G, Kumar A, Huang Y, Eliezer D. A Protofilament-Protofilament Interface in the Structure of Mouse α-Synuclein Fibrils. Biophys J 2019; 114:2811-2819. [PMID: 29925018 DOI: 10.1016/j.bpj.2018.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 05/04/2018] [Accepted: 05/07/2018] [Indexed: 12/11/2022] Open
Abstract
Fibrillar α-synuclein (AS) is the major component of Lewy bodies, the pathological hallmark of Parkinson's disease. Using solid-state nuclear magnetic resonance (ssNMR), we previously reported a structural characterization of mouse AS (mAS) fibrils and found that the secondary structure of the mAS fibrils is highly similar to a form of human AS (hAS) fibrils. Recently, a three-dimensional structure of these same hAS fibrils was determined by ssNMR and scanning transmission electron microscopy. Using medium- and long-range distance restraints obtained from ssNMR spectra, we found that the single protofilament structure of mAS fibrils is also similar to that of the hAS fibrils. However, residue-specific water accessibility of mAS fibrils probed by water polarization transfer ssNMR measurements indicates that residues S42-T44 and G84-V95 are largely protected from water even though they are located at the edge of the protofilament. Some of the corresponding resonances also exhibit peak doubling. These observations suggest that these residues may be involved in, to our knowledge, a novel protofilament-protofilament interface. We propose a structural model of mAS fibrils that incorporates this dimer interface.
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Affiliation(s)
- Guohua Lv
- Department of Biochemistry, Weill Cornell Medical College, New York, New York; Department of NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany.
| | - Ashutosh Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Mumbai, India; Department of NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
| | - Yun Huang
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, New York
| | - David Eliezer
- Department of Biochemistry, Weill Cornell Medical College, New York, New York.
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Lv G, Zhang DL, Wang D, Pan L, Liu Y. Synthesis, Crystal Structure, Anti-Bone Cancer Activity and Molecular Docking Investigations of the Heterocyclic Compound 1-((2S,3S)-2-(Benzyloxy)Pentan-3-yl) -4-(4-(4-(4-Hydroxyphenyl)Piperazin-1-yl) Phenyl)-1H-1,2,4-Triazol-5(4H)-One. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619070205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li L, Lv G, Wang B, Kuang L. XIST/miR-376c-5p/OPN axis modulates the influence of proinflammatory M1 macrophages on osteoarthritis chondrocyte apoptosis. J Cell Physiol 2019; 235:281-293. [PMID: 31215024 DOI: 10.1002/jcp.28968] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [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: 03/06/2019] [Revised: 05/23/2019] [Accepted: 05/28/2019] [Indexed: 01/15/2023]
Abstract
The inflammatory microenvironment in the joints is one of the critical issues during osteoarthritis (OA) and also the main factor that may aggravate symptoms. Under inflammatory microenvironment, M1 macrophages are activated and produce large numbers of proinflammatory mediators, leading to the production of degradative enzymes, the disturbance of chondrocyte apoptosis and cartilage catabolic processes, and finally the deterioration of OA. In the present study, we reveal that the overexpression of osteopontin (OPN), a cytokine, and a matrix protein involved in arthritis and chondrocyte apoptosis in OA, could exacerbate the inflammatory microenvironment in OA via promoting the production of proinflammation cytokines and the levels of degradative enzymes in M1 macrophages, therefore, enhancing the cytotoxicity of M1 macrophage on chondrocytes. XIST expression significantly increases in OA tissue specimens. XIST serves as a competing endogenous RNA for miR-376c-5p to compete with OPN for miR-376c-5p binding, thus counteracting miR-376c-5p-mediated OPN suppression. XIST knockdown could improve the inflammatory microenvironment in OA via acting on M1 macrophages, subsequently affecting the apoptosis of cocultured chondrocytes. miR-376c-5p inhibition exerts an opposing effect on M1 macrophages and cocultured chondrocytes, as well as significantly reverses the effect of XIST knockdown. As a further confirmation, XIST and OPN mRNA expression significantly increased in OA tissues and was positively correlated in tissue samples. In summary, we provide a novel mechanism of macrophages and the inflammatory microenvironment affecting chondrocyte apoptosis. XIST and OPN might be potential targets for OA treatment, which needs further in vivo experimental confirmation.
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Affiliation(s)
- Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
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Wang J, Liu C, Wang C, Li J, Lv G, A J, Deng Y, Wang W. Early and Midterm Outcomes of Surgical Correction for Severe Dystrophic Cervical Kyphosis in Patients with Neurofibromatosis Type 1: A Retrospective Multicenter Study. World Neurosurg 2019; 127:e1190-e1200. [PMID: 31004860 DOI: 10.1016/j.wneu.2019.04.096] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To evaluate the early and midterm outcomes of surgical correction for severe dystrophic cervical kyphosis in patients with neurofibromatosis type 1 (NF-1) and analyze the pathomechanics and the influence on surgical efficacy of related systemic skeletal dystrophy. METHODS Ten patients who underwent surgical correction for NF-1-related severe dystrophic cervical kyphosis were reviewed. Radiographic parameters, including local and global Cobb angle, sagittal vertical axis, and T-1 slope, were measured. The visual analog scale score, Japanese Orthopaedic Association score, Neck Disability Index, Patient Satisfaction Index, and complications were evaluated. RESULTS The average follow-up was 50.6 months. The local and global Cobb angle improved from the preoperative average of 82.0° and 54.9° to an average of 35.6° and 29.8°, respectively, at the time of final follow-up. The C2-7 sagittal vertical axis averaged 5.8 mm before surgery and 8.9 mm at the final follow-up. The average T1 slope was -12.3° before surgery and -1.6° at the final follow-up. The visual analog scale score, Japanese Orthopaedic Association score, and Neck Disability Index improved significantly, and the overall satisfaction rate was 90.0%. One death and 4 instrumentation failures occurred, 3 patients showed progression of the kyphosis, and 2 fusion failures were observed. CONCLUSIONS Surgical correction, specifically the combined anteroposterior procedure, is essential and effective for management of NF-1-related severe dystrophic cervical kyphosis. However, high incidences of instrumentation failure, kyphosis progression, and fusion failure were observed. NF-1-related continuous skeletal dystrophy caused by multiple metabolic factors remarkably affected the midterm outcomes. Early prevention and targeted pharmacotherapy may be necessary.
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Affiliation(s)
- Jingcheng Wang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Congcong Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China; Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Cheng Wang
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang, Hunan, P.R. China
| | - Jing Li
- Department of Orthopedics, Qinghai Red Cross Hospital, Xining, Qinghai, P.R. China
| | - Guohua Lv
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China
| | - Jiancuo A
- Department of Orthopedics, Qinghai Red Cross Hospital, Xining, Qinghai, P.R. China
| | - Youwen Deng
- Department of Emergency Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China; Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, P.R. China.
| | - Wenjun Wang
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang, Hunan, P.R. China
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Qiao R, Li X, Han X, Wang K, Lv G, Ren G, Li X. Population structure and genetic diversity of four Henan pig populations. Anim Genet 2019; 50:262-265. [PMID: 30883844 DOI: 10.1111/age.12775] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2019] [Indexed: 12/22/2022]
Abstract
To investigate the population structure and genetic diversity of Henan indigenous pig breeds, samples from a total of 78 pigs of 11 breeds were collected, including four pig populations from Henan Province, three Western commercial breeds, three Chinese native pig breeds from other provinces and one Asian wild boar. The genotyping datasets were obtained by genotyping-by-sequencing technology. We found a high degree of polymorphism and rapid linkage disequilibrium decay in Henan pigs. A neighbor-joining tree, principal component analysis and structure analysis revealed that the Huainan and Erhualian pigs were clustered together and that the Queshan black pigs were clearly grouped together but that the Nanyang and Yuxi pigs were extensively admixed with Western pigs. In addition, heterozygosity values might indicate that Henan indigenous pigs, especially the Queshan black and Huainan pigs, were subjected to little selection during domestication. The results presented here indicate that Henan pig breeds were admixed from Western breeds, especially Nanyang and Yuxi pigs. Therefore, establishment of purification and rejuvenation systems to implement conservation strategies is urgent. In addition, it is also necessary to accelerate genetic resources improvement and utilization using modern breeding technologies, such as genomic selection and genome-wide association studies.
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Affiliation(s)
- R Qiao
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - K Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - G Lv
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - G Ren
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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Tan Y, Yao X, Dai Z, Wang Y, Lv G. Bone morphogenetic protein 2 alleviated intervertebral disc degeneration through mediating the degradation of ECM and apoptosis of nucleus pulposus cells via the PI3K/Akt pathway. Int J Mol Med 2018; 43:583-592. [PMID: 30387830 DOI: 10.3892/ijmm.2018.3972] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 10/22/2018] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to explore the underlying mechanisms of bone morphogenetic protein 2 (BMP2) in alleviating intervertebral disc degeneration (IDD). A rat puncture IDD model was constructed, and the rats were randomly divided into six groups: Control; IDD (model); IDD+PBS [containing 1010 adeno‑associated virus serotype 2 (AAV)]; and IDD + AAV2‑BMP2 (106, 108 and 1010). IL‑1β was used to treat primary nucleus pulposus (NP) cells to mimic IDD in vitro. The effects of BMP2 in IDD were determined by magnetic resonance imaging (MRI), hematoxylin and eosin staining and Alcian Blue staining in vivo. The levels of collagen II, aggrecan, transcription factor SOX9 (SOX9) and matrix metalloproteinase 13 (MMP‑13) were examined using western blot analysis and reverse transcription quantitative polymerase chain reaction (RT‑qPCR) in NP tissues and cells. The expression of C‑telopeptide of type II collagen (CTX‑II) in the sera or cell supernatants was determined by ELISA. In addition, the levels of phosphorylation of phosphoinositide 3‑kinase (PI3K) and protein kinase B (Akt), and the levels of apoptosis‑associated proteins and apoptosis ratio of NP cells were also determined by western blot analysis and flow cytometry, respectively. LY29400, an inhibitor of PI3K, was used to additionally confirm the signal pathway mechanism of BMP2 treatment in IDD. BMP2 significantly extended the interval between discs and alleviated the fibrous ring rupture and the decrease in the levels of glycoproteins in IDD rats, as determined by MRI and histological staining. Additionally, BMP2 treatment significantly upregulated the levels of collagen II, aggrecan and SOX9, but downregulated the levels of MMP‑13 and CTX‑II in IDD rats and NP cells in a dose‑dependent manner. Concurrently, recombinant human (rh)BMP2 pretreatment also significantly decreased the apoptosis ratio of interleukin (IL)‑1β‑treated NP cells via downregulating the level of cleaved caspase‑3 and upregulating the level of uncleaved poly (adenosine 5'‑diphosphate‑ribose) polymerase. It was demonstrated that rhBMP2 also significantly decreased the inflammatory response in NP tissues and cells, based on levels of IL‑6, TNF‑α and IL‑10. In addition, rhBMP2 inhibited cell apoptosis via upregulating the phosphorylation levels of the PI3K/Akt signaling pathway, and LY29400 pretreatment inhibited the effects of BMP2 in IL‑1β treated NP cells. BMP2 alleviated IDD via the PI3K/Akt signaling pathway by inhibiting NP cell apoptosis and decreasing the levels of matrix proteins.
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Affiliation(s)
- Yanlin Tan
- Department of Spinal Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Xingwang Yao
- Department of Spinal Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Zhehao Dai
- Department of Spinal Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Yunhua Wang
- Department of Positron Emission Tomography/Computed Tomography Center, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
| | - Guohua Lv
- Department of Spinal Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
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Li L, Lv G, Wang B, Kuang L. The role of lncRNA XIST/miR-211 axis in modulating the proliferation and apoptosis of osteoarthritis chondrocytes through CXCR4 and MAPK signaling. Biochem Biophys Res Commun 2018; 503:2555-2562. [PMID: 30005876 DOI: 10.1016/j.bbrc.2018.07.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [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: 07/02/2018] [Accepted: 07/04/2018] [Indexed: 12/20/2022]
Abstract
Long noncoding RNAs (lncRNAs) participate in multiple diverse diseases, including osteoarthritis (OA). Here, we explored the role of lncRNA XIST in OA and identified the potential molecular mechanisms. The expression of XIST in cartilage samples in patients with OA was significantly upregulated. XIST knockdown remarkably suppressed IL-1β-suppressed OA chondrocyte proliferation while promoted IL-1β-induced cell apoptosis. By employing online tools, miRNAs related to CXCR4, a major contributor to chondrocyte apoptosis, and XIST were selected. miR-211 expression could be significantly inhibited by IL-1β stimulation, and miR-211 negatively regulated XIST expression and CXCR4 protein levels. Through direct binding, XIST served as a ceRNA for miR-211 to counteract miR-211-mediated CXCR4 repression, thereby modulating chondrocyte proliferation and apoptosis through downstream MAPK signaling. In OA tissues, miR-211 expression was significantly downregulated while CXCR4 mRNA expression was upregulated. miR-211 was negatively correlated with XIST and CXCR4, respectively, while XIST and CXCR4 was positively correlated in tissue samples. In conclusion, the study revealed that lncRNA XIST can promote the proliferation of OA chondrocytes and promote apoptosis through the miR-211/CXCR4 axis. Thus, lncRNA XIST might be considered as a potential therapeutic target for OA treatment.
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Affiliation(s)
- Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China
| | - Lei Kuang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.
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Tu Z, Li L, Wang B, Li Y, Lv G, Dai Y. Stand-Alone Anterolateral Interbody Fusion Versus Extended Posterior Fusion for Symptomatic Adjacent-Segment Degeneration: A Retrospective Study of 2 Years' Follow-up. World Neurosurg 2018; 115:e748-e755. [PMID: 29729460 DOI: 10.1016/j.wneu.2018.04.165] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 04/20/2018] [Accepted: 04/21/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To evaluate the clinical and radiologic outcome of stand-alone anterolateral lumbar interbody fusion (ALLIF) using self-locked cages in comparison with extended posterior lumbar interbody fusion (PLIF) for symptomatic adjacent-segment degeneration (ASD) after posterior lumbar fusion. METHODS This retrospective study enrolled 40 symptomatic patients with ASD who were treated with ALLIF (n = 13) or extended PLIF (n = 27) between January 2011 and January 2015. Evaluations were performed preoperatively, at 3, 12, and 24 months postoperatively. Clinical outcome measurements included visual analog scale scores for low-back and leg pain, Oswestry Disability Index score for function assessment, Short-Form 36 Questionnaire for quality of life, and modified Macnab criteria for patient satisfaction. Radiologic outcome measurements included fusion rate, cage subsidence, disc height, and lumbar lordosis. RESULTS There were no significant differences in the baseline data for the ALLIF and PLIF groups (P > 0.05). Mean operative time, blood loss, and length of hospital stay were significantly decreased for the ALLIF group (P < 0.05). Postoperatively, low back and leg pain was relieved, function and quality of life were improved in both groups (P < 0.05), whereas disc height and lumbar lordosis were restored (P < 0.05). At 24-month follow-up, fusion was observed in 13 of 13 patients (100%), with 3 of 13 (23.1%) patients developing cage subsidence in the ALLIF group. CONCLUSIONS Stand-alone ALLIF could achieve satisfactory safety and efficacy for the treatment of symptomatic ASD with less trauma and faster recovery, and it may serve as an alternative surgical treatment for symptomatic ASD with appropriate indication.
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Affiliation(s)
- Zhiming Tu
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Lei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Bing Wang
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China.
| | - Yawei Li
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Guohua Lv
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Yuliang Dai
- Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
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45
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He Y, Zheng H, Li X, Lv G, Liu W. 881 Comparison of Sensititre YeastOne® colorimetric antifungal panel with routine CLSI tests against dematiaceos fungi. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Zhan P, Dukik K, Li D, Sun J, Stielow JB, Gerrits van den Ende B, Brankovics B, Menken SBJ, Mei H, Bao W, Lv G, Liu W, de Hoog GS. Phylogeny of dermatophytes with genomic character evaluation of clinically distinct Trichophyton rubrum and T. violaceum. Stud Mycol 2018; 89:153-175. [PMID: 29910521 PMCID: PMC6002342 DOI: 10.1016/j.simyco.2018.02.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [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] [Indexed: 01/03/2023] Open
Abstract
Trichophyton rubrum and T. violaceum are prevalent agents of human dermatophyte infections, the former being found on glabrous skin and nail, while the latter is confined to the scalp. The two species are phenotypically different but are highly similar phylogenetically. The taxonomy of dermatophytes is currently being reconsidered on the basis of molecular phylogeny. Molecular species definitions do not always coincide with existing concepts which are guided by ecological and clinical principles. In this article, we aim to bring phylogenetic and ecological data together in an attempt to develop new species concepts for anthropophilic dermatophytes. Focus is on the T. rubrum complex with analysis of rDNA ITS supplemented with LSU, TUB2, TEF3 and ribosomal protein L10 gene sequences. In order to explore genomic differences between T. rubrum and T. violaceum, one representative for both species was whole genome sequenced. Draft sequences were compared with currently available dermatophyte genomes. Potential virulence factors of adhesins and secreted proteases were predicted and compared phylogenetically. General phylogeny showed clear gaps between geophilic species of Arthroderma, but multilocus distances between species were often very small in the derived anthropophilic and zoophilic genus Trichophyton. Significant genome conservation between T. rubrum and T. violaceum was observed, with a high similarity at the nucleic acid level of 99.38 % identity. Trichophyton violaceum contains more paralogs than T. rubrum. About 30 adhesion genes were predicted among dermatophytes. Seventeen adhesins were common between T. rubrum and T. violaceum, while four were specific for the former and eight for the latter. Phylogenetic analysis of secreted proteases reveals considerable expansion and conservation among the analyzed species. Multilocus phylogeny and genome comparison of T. rubrum and T. violaceum underlined their close affinity. The possibility that they represent a single species exhibiting different phenotypes due to different localizations on the human body is discussed.
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Affiliation(s)
- P Zhan
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Dermatology Hospital of Jiangxi Provinces, Jiangxi Dermatology Institute, Nanchang, China.,Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - K Dukik
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - D Li
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China.,Georgetown University Medical Center, Department of Microbiology and Immunology, Washington, DC, USA
| | - J Sun
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - J B Stielow
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Thermo Fisher Scientific, Landsmeer, The Netherlands.,Center of Expertise in Mycology of Radboudumc/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
| | | | - B Brankovics
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - S B J Menken
- Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - H Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Bao
- Nanjing General Hospital of Nanjing Command, Nanjing, China
| | - G Lv
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - W Liu
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Nanjing, China
| | - G S de Hoog
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Institute of Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.,Thermo Fisher Scientific, Landsmeer, The Netherlands.,Center of Expertise in Mycology of Radboudumc/Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
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Li Y, Zhao C, Yu Z, Chen J, She X, Li P, Liu C, Zhang Y, Feng J, Fu H, Wang B, Kuang L, Li L, Lv G, Wu M. Low expression of miR-381 is a favorite prognosis factor and enhances the chemosensitivity of osteosarcoma. Oncotarget 2018; 7:68585-68596. [PMID: 27612424 PMCID: PMC5356575 DOI: 10.18632/oncotarget.11861] [Citation(s) in RCA: 32] [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: 04/09/2016] [Accepted: 08/24/2016] [Indexed: 01/13/2023] Open
Abstract
Osteosarcoma (OS) is the most common primary bone malignancy with a poor prognosis for all races and both sexes. In this study, we found that miR-381 is a positive prognosis factor for OS patients that OS patients with a low expression of miR-381 had a longer survival time after surgical intervention, and miR-381 expression promotes MG-63 cell proliferation and cell invasion ability. Our results also showed a strong negative correlation between the expression of miR-381 and LRRC4 (brain relative specific expression gene) in OS tissues. This demonstrated that LRRC4 is a direct target gene of miR-381, and suppressing the expression of miR-381 increases the sensitivity of OS cells to chemotherapeutic drugs through the LRRC4-mediated mTOR pathway. In summary, miR-381 is an important biomarker in directing therapeutic intervention and predicting prognosis in OS patients.
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Affiliation(s)
- Yunchao Li
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chunhua Zhao
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Zhibin Yu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Jiarui Chen
- Xiangya Nursing School, Central South University, Changsha, Hunan, China
| | - Xiaoling She
- Pathology Department, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Peiyao Li
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Changhong Liu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Yan Zhang
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Jianbo Feng
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Haijuan Fu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
| | - Bing Wang
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Lei Kuang
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Lei Li
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Guohua Lv
- Department of Spinal Surgery, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Minghua Wu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Key Laboratory of Carcinogenesis, Ministry of Health, Changsha, Hunan, China
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48
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Li Y, Lv G, Wang B. Letter to the Editor. Hybrid cervical disc arthroplasty for cervical myelopathy associated with congenital cervical stenosis. J Neurosurg Spine 2018; 28:455-456. [PMID: 29393832 DOI: 10.3171/2017.8.spine17888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Lv G, Teng SW, Lu G. Enhancing image registration performance by incorporating distribution and spatial distance of local descriptors. Pattern Recognit Lett 2018. [DOI: 10.1016/j.patrec.2018.01.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Tu Z, Wang B, Li L, Li Y, Dai Y, Lv G, Li T. Early Experience of Full-Endoscopic Interlaminar Discectomy for Adolescent Lumbar Disc Herniation with Sciatic Scoliosis. Pain Physician 2018; 21:E63-E70. [PMID: 29357342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND Full-endoscopic interlaminar discectomy (FEID) has achieved satisfactory outcome in adolescent lumbar disc herniation (ALDH). Sciatic scoliosis is found to be a common presentation in ALDH. However, few reports are focused on the influences of sciatic scoliosis on ALDH and the prognosis of sciatic scoliosis after FEID. OBJECTIVE This study aims to evaluate the clinical and radiological results of FEID in the treatment of ALDH with sciatic scoliosis and to identify the effects of sciatic scoliosis on complication and recurrence. STUDY DESIGN A retrospective study. SETTING An inpatient surgery center. METHODS A series of cases of patients under age 20 with single-level ALDH that underwent FEID between January 2010 and December 2014 were retrospectively analyzed. The patients were divided into 2 groups according to if they had scoliosis or not. Clinical outcomes were evaluated using a visual analog scale (VAS) for low back and leg pain, Oswestry Disability Index (ODI) for the functional assessment, and modified Macnab criteria for the patient satisfaction. Radiological parameters of the scoliosis group such as Cobb angle, CVSL-max, and CVSL-C7 were statistically analyzed. RESULTS No significant differences were found between both groups in terms of the mean operative time, the mean length of hospital stay, complications, and recurrences (P > 0.05). VAS and ODI scores were significantly improved in both groups (P < 0.05). However, there were no statistically significant differences between the 2 groups in VAS, ODI, and modified MacNab criteria (P > 0.05). For the scoliosis group, significant improvements were observed in the postoperative sagittal and coronal alignment parameters (P < 0.05). LIMITATIONS This was a retrospective study with a relatively small sample size. Additionally, the length of follow-up was short. CONCLUSIONS The application of FEID in the treatment of ALDH could achieve satisfactory clinical and radiological outcomes. Sciatic scoliosis was corrected spontaneously without increasing the risk of complication and recurrence. KEY WORDS Adolescent lumbar disc herniation, full-endoscopic interlaminar discectomy, sciatic scoliosis, recurrence.
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Affiliation(s)
- Zhiming Tu
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Bing Wang
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Lei Li
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Yawei Li
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Yuliang Dai
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Guohua Lv
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
| | - Tuoqi Li
- Department of Spine, The Second Xiangya Hospital of Central South University, Changsha, Hunan China
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