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Luo P, Feng C, Jiang C, Ren X, Gou L, Ji P, Xu J. IL-37b alleviates inflammation in the temporomandibular joint cartilage via IL-1R8 pathway. Cell Prolif 2019; 52:e12692. [PMID: 31560411 PMCID: PMC6869040 DOI: 10.1111/cpr.12692] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 08/22/2019] [Accepted: 08/24/2019] [Indexed: 02/06/2023] Open
Abstract
Objectives Interleukin (IL)‐37 is a natural suppressor of innate inflammation. This study was conducted to explore the anti‐inflammatory effects of IL‐37 in temporomandibular joint (TMJ) inflammation. Materials and Methods The expression of IL‐37 in the TMJ was measured using ELISA and IHC. Human TMJ chondrocytes were treated with IL‐37b and IL‐1β, and inflammation‐related factors were detected. siRNA‐IL‐1R8 was transfected into chondrocytes, and the affected pathways were detected. IL‐37b was used in disc‐perforation‐induced TMJ inflammation in SD rats. Micro‐CT, IHC, real‐time PCR and histological staining were used to quantify the therapeutic effect of IL‐37b. Results IL‐37 was expressed in the synovium and the disc of patients with osteoarthritis (OA) and in the articular cartilage of condylar fracture patients. IL‐37 was highly expressed in synovial fluid of patients with synovitis than in those with OA and disc displacement and was closely related to visual analogue scale (VAS) score. In vitro, IL‐37b suppressed the expression of pro‐inflammatory factors. In addition, IL‐37b exerted anti‐inflammatory effects via IL‐1R8 by inhibiting the p38, ERK, JNK and NF‐κB activation, while silencing IL‐1R8 led to inflammation and upregulation of these signals. In disc‐perforation‐induced TMJ inflammation in SD rats, IL‐37b suppressed inflammation and inhibited osteoclast formation to protect against TMJ. Conclusions IL‐37b may be a novel therapeutic agent for TMJ inflammation.
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Affiliation(s)
- Ping Luo
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chi Feng
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Chao Jiang
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xiaochun Ren
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Liming Gou
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Ping Ji
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jie Xu
- College of Stomatology, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.,Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
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52
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Follicular structures of cows with cystic ovarian disease present altered expression of cytokines. ZYGOTE 2019; 27:285-298. [PMID: 31412964 DOI: 10.1017/s0967199419000285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Ovulation is considered an inflammatory, cytokine-mediated event. Cytokines, which are recognized as growth factors with immunoregulatory properties, are involved in many cellular processes at the ovarian level. In this sense, cytokines affect fertility and are involved in the development of different ovarian disorders such as bovine cystic ovarian disease (COD). Because it has been previously demonstrated that ovarian cells represent both sources and targets of cytokines, the aim of this study was to examine the expression of several cytokines, including IL-1β, IL-1RA, IL-1RI, IL-1RII, IL-4 and IL-8, in ovarian follicular structures from cows with spontaneous COD. The protein expression of these cytokines was evaluated by immunohistochemistry. Additionally, IL-1β, IL-4 and IL-8 concentrations in follicular fluid (FF) and serum were determined by enzyme-linked immunosorbent assay (ELISA). In granulosa and theca cells, IL-1RI, IL-1RII, IL-1RA and IL-4 expression levels were higher in cystic follicles than in the control dominant follicles. The serum and FF concentrations of IL-1β and IL-4 showed no differences between groups, whereas IL-8 concentration was detected only in FF of cysts from cows with COD. The FF and serum concentrations of IL-1β and IL-8 showed no significant differences, whereas IL-4 concentration was higher in FF than in serum in both the control and COD groups. These results evidenced an altered expression of cytokines in ovaries of cows with COD that could contribute to the pathogenesis of this disease.
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53
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Song D, Yin L, Wang C, Wen X. Adenovirus-mediated expression of SIK1 improves hepatic glucose and lipid metabolism in type 2 diabetes mellitus rats. PLoS One 2019; 14:e0210930. [PMID: 31233505 PMCID: PMC6590778 DOI: 10.1371/journal.pone.0210930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 06/05/2019] [Indexed: 11/19/2022] Open
Abstract
Aim In this study, we investigated the role and mechanism of Salt-induced kinase 1 (SIK1) in regulation of hepatic glucose and lipid metabolism in a high-fat food (HFD) and streptozocin (STZ)-induced type 2 diabetes mellitus (T2DM) rat model. Methods A diabetic rat model treated with HFD plus low-dose STZ was developed and was transduced to induce a high expression of SIK1 in vivo via a tail-vein injection of a recombinant adenoviral vector. The effects on hepatic glucogenetic and lipogenic gene expression, systemic metabolism and pathological changes were then determined. Results In T2DM rats, SIK1 expression was reduced in the liver. Overexpression of SIK1 improved hyperglycaemia, hyperlipidaemia and fatty liver, reduced the expression of cAMP-response element binding protein (CREB)-regulated transcription co-activator 2 (CRTC2), phosphoenolpyruvate carboxykinase (PEPCK), glucose-6-phosphatase (G6Pase), pS577 SIK1, sterol regulatory element binding-protein-1c (SREBP-1c) and its target genes, including acetyl-CoA carboxylase (ACC) and fatty acid synthase (FAS), and increased the expression of SIK1, pT182 SIK1 and pS171 CRTC2 in diabetic rat livers with the suppression of gluconeogenesis and lipid deposition. Conclusion SIK1 plays a crucial role in the regulation of glucose and lipid metabolism in the livers of HFD/STZ-induced T2DM rats, where it suppresses hepatic gluconeogenesis and lipogenesis by regulating the SIK1/CRTC2 and SIK1/SREBP-1c signalling pathways. Strategies to activate SIK1 kinase in liver would likely have beneficial effects in patients with T2DM and nonalcoholic fatty liver disease (NAFLD).
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Affiliation(s)
- DaoFei Song
- Department of Endocrinology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Lei Yin
- Department of Endocrinology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Chang Wang
- Department of Endocrinology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - XiuYing Wen
- Department of Traditional Chinese Medicine and Endocrinology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
- * E-mail:
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54
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He D, Wu L, Li X, Liu X, Ma P, Juang Y. Ecotropic virus integration-1 and calreticulin as novel prognostic markers in triple-negative breast cancer: A retrospective cohort study. Oncol Lett 2019; 18:1847-1855. [PMID: 31423253 PMCID: PMC6607142 DOI: 10.3892/ol.2019.10472] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 05/09/2019] [Indexed: 12/16/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is an aggressive form of breast cancer, for which no specific targete d therapy is currently available. The present study aimed to examine the associations of ecotropic virus integration site 1 (EVI-1) and calreticulin (CRT) with other clinicopathological variables and the prognosis of patients with TNBC. The present retrospective cohort study reviewed the medical records of patients with TNBC treated in the Affiliated Hospitals of Jinzhou Medical University between January 2010 and June 2015. The protein expression levels of EVI-1 and CRT in tumor samples obtained from the patients were examined by immunohistochemical analysis. Univariate and multivariate regression analyses were used to identify associations between clinical characteristics and disease-free survival (DFS) or overall survival (OS). Kaplan-Meier analysis was performed to observe the survival condition (DFS/OS) according to EVI-1 and CRT expression. A total of 88 TNBC patients were included in the present study. Tumor tissues in 52 (59.1%) patients were EVI-1 positive, and tumor tissues in 64 (72.7%) patients were CRT-positive, and these rates were significantly higher compared with those in the corresponding paracancerous tissues (P<0.05). Multivariate analysis revealed that EVI-1 and CRT expression levels were independent variables associated with OS and DFS, and high expression of both CRT and EVI-1 was significantly associated with decreased OS and DFS compared with the other subgroups (low EVI-1/low CRT expression, low EVI-1/high CRT expression and high EVI-1/low CRT expression) of patients with TNBC. EVI-1 and CRT expression in TNBC was significantly correlated with poor outcome. Evaluation of the EVI-1 and CRT status may provide insight into prognosis prediction for patients with TNBC.
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Affiliation(s)
- Dongning He
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China.,Department of Oncology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Lei Wu
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiaoxi Li
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xiaodan Liu
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ping Ma
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Youhong Juang
- Molecular Oncology Laboratory of Cancer Research Institute, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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55
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Chen J, Wang Y, Du G, Zhang W, Cao T, Shi L, Wang Y, Mi J, Tang G. Down-regulation of miRNA-27b-3p suppresses keratinocytes apoptosis in oral lichen planus. J Cell Mol Med 2019; 23:4326-4337. [PMID: 30973209 PMCID: PMC6533518 DOI: 10.1111/jcmm.14324] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 03/04/2019] [Accepted: 03/22/2019] [Indexed: 12/17/2022] Open
Abstract
Oral lichen planus (OLP) is considered a precancerous lesion with no known cure. Recent studies reported that abnormal regulation of apoptosis was involved in the pathogenesis of OLP. Next generation sequencing was used to screen the candidate microRNAs and genes in biopsies from patients with OLP and healthy mucosa. Human oral keratinocytes were transfected into the related oligonucleotides of miR‐27b‐3p/cyclophilin D and their control groups. Apoptosis was detected by TdT‐mediated dUTP nick end labelling and flow cytometry. The levels of mRNA and protein were detected by quantitative PCR, Western blots, and enzyme‐linked immunosorbent assays, respectively. Luciferase assays were performed to detect the luciferase activities of miR‐27b‐3p and cyclophilin D. Here, we showed that basal epithelium apoptosis was reduced and the miR‐27b‐3p levels were decreased in clinical OLP samples. We also found that down‐regulation of miR‐27b‐3p inhibited epithelial keratinocyte apoptosis by up‐regulating cyclophilin D expression. Moreover, cyclophilin D increased the protein stability of Bcl2 through direct binding, and Bcl2 suppressed caspase9/3 activation and cytochrome C release. Taken together, these data showed that miR‐27b‐3p regulated keratinocyte apoptosis through cyclophilin D/Bcl2 signalling, suggesting the miR‐27b‐3p regulated the pathogenesis of OLP.
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Affiliation(s)
- Junjun Chen
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Biochemistry & Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yufeng Wang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guanhuan Du
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenyi Zhang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianyi Cao
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Linjun Shi
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanni Wang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Mi
- Department of Biochemistry & Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guoyao Tang
- Department of Oral Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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56
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Zhang ZZ, Chen YR, Wang SJ, Zhao F, Wang XG, Yang F, Shi JJ, Ge ZG, Ding WY, Yang YC, Zou TQ, Zhang JY, Yu JK, Jiang D. Orchestrated biomechanical, structural, and biochemical stimuli for engineering anisotropic meniscus. Sci Transl Med 2019; 11:11/487/eaao0750. [PMID: 30971451 DOI: 10.1126/scitranslmed.aao0750] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 08/12/2018] [Accepted: 03/21/2019] [Indexed: 12/31/2022]
Abstract
Reconstruction of the anisotropic structure and proper function of the knee meniscus remains an important challenge to overcome, because the complexity of the zonal tissue organization in the meniscus has important roles in load bearing and shock absorption. Current tissue engineering solutions for meniscus reconstruction have failed to achieve and maintain the proper function in vivo because they have generated homogeneous tissues, leading to long-term joint degeneration. To address this challenge, we applied biomechanical and biochemical stimuli to mesenchymal stem cells seeded into a biomimetic scaffold to induce spatial regulation of fibrochondrocyte differentiation, resulting in physiological anisotropy in the engineered meniscus. Using a customized dynamic tension-compression loading system in conjunction with two growth factors, we induced zonal, layer-specific expression of type I and type II collagens with similar structure and function to those present in the native meniscus tissue. Engineered meniscus demonstrated long-term chondroprotection of the knee joint in a rabbit model. This study simultaneously applied biomechanical, biochemical, and structural cues to achieve anisotropic reconstruction of the meniscus, demonstrating the utility of anisotropic engineered meniscus for long-term knee chondroprotection in vivo.
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Affiliation(s)
- Zheng-Zheng Zhang
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing 100191, P.R. China
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - You-Rong Chen
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Shao-Jie Wang
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing 100191, P.R. China
- Department of Joint Surgery, Zhongshan Hospital of Xiamen University, Xiamen 361004, P.R. China
| | - Feng Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, P.R. China
| | - Xiao-Gang Wang
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University, Beijing 100083, P.R. China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Jin-Jun Shi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Zi-Gang Ge
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, P.R. China
| | - Wen-Yu Ding
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, P.R. China
| | - Yu-Chen Yang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, P.R. China
| | - Tong-Qiang Zou
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, P.R. China
| | - Ji-Ying Zhang
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Jia-Kuo Yu
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing 100191, P.R. China.
| | - Dong Jiang
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing 100191, P.R. China.
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Lorenzetti MA, Mosna MJ, De Matteo EN, García Lombardi M, Colli SL, Preciado MV. Overexpression of survivin in pediatric Hodgkin lymphoma tumor cells: Characterization of protein expression and splice-variants transcription profile. Exp Mol Pathol 2019; 108:24-31. [PMID: 30876863 DOI: 10.1016/j.yexmp.2019.03.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 03/07/2019] [Accepted: 03/11/2019] [Indexed: 01/30/2023]
Abstract
Survivin is abundantly expressed during fetal development but absent in most differentiated adult tissues; an exception being components of the immune system, such as B and T lymphocytes. Beyond acting as a master regulator of the cell cycle, survivin acts as an inhibitor of apoptosis and is overexpressed in almost all carcinoma types; however, its expression in lymphomas is lesser-explored. Survivin's role in carcinogenesis was subjected to its sub-cellular localization and splice transcripts expression, namely wild-type survivin, survivin-∆Ex3 and survivin-2B. To assess survivin's expression and sub-cellular localization in Epstein Barr virus positive and negative biopsies from treatment naïve pediatric patients with Hodgkin lymphoma (HL), samples were stained for survivin protein by immunofluorescence. The proportion of survivin+ cells was calculated, survivin sub-cellular localization assessed and its fluorescence intensity quantified. Transcription profile of survivin mRNA variants was studied by RT-qPCR. Survivin was overexpressed in the nucleus of tumor cells, and also in a greater proportion of tumor cells, in comparison with the non-tumoral infiltrating cells. Although a higher expression of survivin was observed in advanced clinical stages, no correlation was found between the expression level of survivin and a proliferation marker, or event-free survival. Instead, survivin was related to apoptosis inhibition in tumor cells. Additionally, survivin's transcriptional variants displayed similar expression levels. Present results suggest that although survivin is overexpressed in Hodgkin's tumor cells, it may not play a central role in the progression of classic HL, or act as a suitable progression biomarker, as suggested for most carcinomas.
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Affiliation(s)
- Mario Alejandro Lorenzetti
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina.
| | - María Jimena Mosna
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Elena Noemí De Matteo
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | | | - Sandra Lorena Colli
- División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - María Victoria Preciado
- Instituto Multidisciplinario de Investigaciones en Patologías Pediátricas (IMIPP), CONICET-GCBA, División Patología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
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Cao Y, Song M, Li F, Li C, Lin X, Chen Y, Chen Y, Xu J, Ding Q, Song H. A Synthetic Plasmid Toolkit for Shewanella oneidensis MR-1. Front Microbiol 2019; 10:410. [PMID: 30906287 PMCID: PMC6418347 DOI: 10.3389/fmicb.2019.00410] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/18/2019] [Indexed: 11/25/2022] Open
Abstract
Shewanella oneidensis MR-1 is a platform microorganism for understanding extracellular electron transfer (EET) with a fully sequenced and annotated genome. In comparison to other model microorganisms such as Escherichia coli, the available plasmid parts (such as promoters and replicons) are not sufficient to conveniently and quickly fine-tune the expression of multiple genes in S. oneidensis MR-1. Here, we constructed and characterized a plasmid toolkit that contains a set of expression vectors with a combination of promoters, replicons, antibiotic resistance genes, and an RK2 origin of transfer (oriT) cassette, in which each element can be easily changed by fixed restriction enzyme sites. The expression cassette is also compatible with BioBrick synthetic biology standards. Using green fluorescent protein (GFP) as a reporter, we tested and quantified the strength of promoters. The copy number of different replicons was also measured by real-time quantitative PCR. We further transformed two compatible plasmids with different antibiotic resistance genes into the recombinant S. oneidensis MR-1, enabling control over the expression of two different fluorescent proteins. This plasmid toolkit was further used for overexpression of the MtrCAB porin-c-type cytochrome complex in the S. oneidensis ΔmtrA strain. Tungsten trioxide (WO3) reduction and microbial fuel cell (MFC) assays revealed that the EET efficiency was improved most significantly when MtrCAB was expressed at a moderate level, thus demonstrating the utility of the plasmid toolkit in the EET regulation in S. oneidensis. The plasmid toolkit developed in this study is useful for rapid and convenient fine-tuning of gene expression and enhances the ability to genetically manipulate S. oneidensis MR-1.
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Affiliation(s)
- Yingxiu Cao
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Mengyuan Song
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Feng Li
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Congfa Li
- College of Food Science and Technology, Hainan University, Haikou, China
| | - Xue Lin
- College of Food Science and Technology, Hainan University, Haikou, China
| | - Yaru Chen
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Yuanyuan Chen
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Jing Xu
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Qian Ding
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Hao Song
- Key Laboratory of Systems Bioengineering (Ministry of Education), SynBio Research Platform, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
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Zhang ZZ, Zhou YF, Li WP, Jiang C, Chen Z, Luo H, Song B. Local Administration of Magnesium Promotes Meniscal Healing Through Homing of Endogenous Stem Cells: A Proof-of-Concept Study. Am J Sports Med 2019; 47:954-967. [PMID: 30786213 DOI: 10.1177/0363546518820076] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although many strategies have been developed to modify the biological and biomechanical environment of the meniscal suture repair to improve the chances of healing, the failure rates remain high. Thus, new methods to promote meniscal regeneration and repair are needed. HYPOTHESIS Administration of magnesium (via a repair using magnesium stitches) might enhance recruitment and adherence of endogenous stem cells to the site of the lesion, thereby promoting in situ meniscal regeneration and chondroprotective functions. STUDY DESIGN Controlled laboratory study. METHODS Synovial fluid-derived mesenchymal stem cells (SMSCs) were identified and isolated from the knees of rabbits with a meniscal injury of 4 weeks' duration. An in vitro analysis of adherence and chemotaxis of SMSCs was performed. For the in vivo assay, rabbits (n = 120) with meniscal lesions were divided into 3 groups: repair with high-purity magnesium stitches (Mg group), repair with absorbable sutures (Control group), and no repair (Blank group). Healing of the regenerated tissue and degeneration of the articular cartilage were evaluated by gross and histological analysis at postoperative weeks 1, 3, 6, and 12. The mechanical properties of the repaired meniscus were also analyzed (tensile testing). RESULTS In vitro, magnesium promoted the adhesion and migration of SMSCs, which were identified and increased in the knee joints with meniscal lesions. Moreover, fibrochondrogenesis of SMSCs was stimulated by magnesium. Compared with the other groups, the Mg group had enhanced tissue regeneration, lower cartilage degeneration, and retained mechanical strength at 12 weeks after meniscal repair. CONCLUSION/CLINICAL RELEVANCE Magnesium could be used for in situ meniscal repair due to the potential capacity of magnesium to recruit endogenous stem cells and promote synthesis of fibrocartilaginous matrix.
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Affiliation(s)
- Zheng-Zheng Zhang
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yun-Feng Zhou
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei-Ping Li
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuan Jiang
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhong Chen
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huan Luo
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bin Song
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Xing Z, Yang R, Liu W, Zhang H. A modified trace metal detection test for secondary imprints on porous substrates: A preliminary study. Forensic Sci Int 2019; 296:28-38. [PMID: 30669113 DOI: 10.1016/j.forsciint.2018.09.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 09/12/2018] [Accepted: 09/24/2018] [Indexed: 11/28/2022]
Abstract
In the investigation of criminal cases involving metallic weapons such as firearms and knives, the trace metal detection test (TMDT) and the transfer detection technique are two effective and on-the-spot methods to link a suspect and a suspected metallic weapon. In general, these tests need to be conducted on suspects' hands or done by lifting trace metals from their hands within 3 days of the crime being committed. However, if no suspects are arrested within this period, neither of these two techniques is applicable. This paper presents preliminary development of a modified TMDT to overcome the intrinsic disadvantages of conventional TMDTs. The method primarily focuses on the secondary imprints on porous substrates that are transferred unconsciously from the palms of criminals after handling galvanized weapons. The modified TMDT was established by studying the effect of various factors on secondary imprints on porous substrates. We also tested the effectiveness of the modified TMDT for common porous substrates and galvanized weapons and its relative sensitivity in a depletion series. Additionally, the storage conditions of the developed secondary imprints as physical evidence were studied under different time lapses and light conditions. Finally, we proposed an improved procedure for detecting metal traces formed in the use of metallic weapons and subsequent activities at a crime scene. The modified TMDT provides a novel method for investigators to demonstrate the relationship between a suspect and a metallic weapon, thus reducing the heavy reliance of conventional TMDTs on suspects and the time limit available to visualize or lift metal traces. For this reason, it can be used as a complementary and remedial method for conventional TMDTs, especially when suspects are not arrested within 3 days of the commission of a crime. Furthermore, the improved procedure can serve as a guide for investigators to apply the TMDT series properly to solving the cases involving metallic weapons.
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Affiliation(s)
- Zhuo Xing
- School of Forensic Science, People's Public Security University of China, No. 1 Muxidi Nanli, Xicheng District, Beijing 100038, China
| | - Ruiqin Yang
- School of Forensic Science, People's Public Security University of China, No. 1 Muxidi Nanli, Xicheng District, Beijing 100038, China.
| | - Wenbin Liu
- Shanghai Key Laboratory of Crime Scene Evidence, No. 803 Zhongshan North, Hongkou District, Shanghai, 200080, China
| | - Hongge Zhang
- School of Forensic Science, People's Public Security University of China, No. 1 Muxidi Nanli, Xicheng District, Beijing 100038, China
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61
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Matiller V, Hein GJ, Stassi AF, Angeli E, Belotti EM, Ortega HH, Rey F, Salvetti NR. Expression of TGFBR1, TGFBR2, TGFBR3, ACVR1B and ACVR2B is altered in ovaries of cows with cystic ovarian disease. Reprod Domest Anim 2019; 54:46-54. [PMID: 30120850 DOI: 10.1111/rda.13312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 08/03/2018] [Indexed: 12/22/2022]
Abstract
The objective of this study was to examine the expression of transforming growth factor beta receptor (TGFBR)1, TGFBR2, TGFBR3, activin receptor (ACVR)1B and ACVR2B in ovaries of cows with cystic ovarian disease (COD). The expression of the selected receptors was determined by immunohistochemistry in sections of ovaries from cows with ACTH-induced and spontaneous COD. Expression of TGFBR1 and TGFBR3 was higher in granulosa cells of cysts from cows with spontaneous COD than in tertiary follicles from the control group. Additionally, TGFBR3 expression was higher in granulosa cells of cysts from cows with ACTH-induced COD than in those from the control group and lower in theca cells of spontaneous and ACTH-induced cysts than in tertiary control follicles. There were no changes in the expression of TGFBR2. ACVR1B expression was higher in granulosa cells of tertiary follicles of cows with spontaneous COD than in the control group, whereas ACVR2B expression was higher in cysts of the spontaneous COD group than in tertiary follicles from the control group. The alterations here detected, together with the altered expression of the ligands previously reported, indicate alterations in the response of the ligands in the target cells, modifying their actions at cellular level.
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Affiliation(s)
- Valentina Matiller
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Facultad de Ciencias Veterinarias del Litoral, UNL, Esperanza, Santa Fe, Argentina
| | - Gustavo J Hein
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Centro Universitario Gálvez, Universidad Nacional del Litoral (UNL), Gálvez, Santa Fe, Argentina
| | - Antonela F Stassi
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina
| | - Emmanuel Angeli
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Facultad de Ciencias Veterinarias del Litoral, UNL, Esperanza, Santa Fe, Argentina
| | - Eduardo M Belotti
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Facultad de Ciencias Veterinarias del Litoral, UNL, Esperanza, Santa Fe, Argentina
| | - Hugo H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Facultad de Ciencias Veterinarias del Litoral, UNL, Esperanza, Santa Fe, Argentina
| | - Florencia Rey
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Facultad de Ciencias Veterinarias del Litoral, UNL, Esperanza, Santa Fe, Argentina
| | - Natalia R Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias del Litoral (ICiVet-Litoral), Universidad Nacional del Litoral (UNL)/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Esperanza, Santa Fe, Argentina.,Facultad de Ciencias Veterinarias del Litoral, UNL, Esperanza, Santa Fe, Argentina
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62
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Li X, Tsauo J, Geng C, Zhao H, Lei X, Li X. Ginsenoside Rg3 Decreases NHE1 Expression via Inhibiting EGF-EGFR-ERK1/2-HIF-1 α Pathway in Hepatocellular Carcinoma: A Novel Antitumor Mechanism. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:1915-1931. [PMID: 30525897 DOI: 10.1142/s0192415x18500969] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Na + /H + exchanger 1 (NHE1) plays a vital role in the oncogenesis and development of hepatocellular carcinoma (HCC) and has been regarded as a promising target for the treatment of HCC. Ginsenoside Rg3 (Rg3), a bioactive ginseng compound, is suggested to possess pleiotropic antitumor effects on HCC. However, the underlying mechanisms of Rg3 suppressing HCC remain unclear. In the present study, we uncovered a novel antitumor mechanism of Rg3 on HCC by decreasing NHE1 expression through in vivo and in vitro studies. Mechanistically, we demonstrated that epidermal growth factor (EGF) could dramatically upregulate NHE1 expression, while increasing the phosphorylated extracellular signal-regulated protein kinase (ERK1/2) level and hypoxia-inducible factor 1 alpha (HIF-1 α) expression. In the presence of ERK1/2-specific inhibitor PD98059, EGF stimulated HIF-1 α and NHE1 expression was obviously blocked in addition, the presence of HIF-1 α -specific inhibitor 2-methoxyestradiol (2-MeOE2) blocked EGF stimulated NHE1 expression. Moreover, results from in vivo and in vitro studies indicate that Rg3 treatment markedly decreased the expression of EGF, EGF receptor (EGFR), phosphorylated ERK1/2 and HIF-1 α . Conclusively, these findings suggested that NHE1 was stimulated by EGF, and Rg3 could decrease NHE1 expression by integrally inhibiting EGF-EGFR-ERK1/2-HIF- α signal axis in HCC. Together, our evidence indicated that Rg3 was an effective multi-targets antitumor agent for the treatment of HCC.
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Affiliation(s)
- Xiao Li
- * Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, P. R. China
| | - Jiaywei Tsauo
- ‡ Department of Interventional Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P. R. China
| | - Chong Geng
- * Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, P. R. China
| | - He Zhao
- ‡ Department of Interventional Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P. R. China
| | - Xuelian Lei
- * Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, P. R. China
| | - Xiao Li
- † Institute of Interventional Radiology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, P. R. China.,‡ Department of Interventional Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, P. R. China
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63
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Yu J, Wang W, Wang J, Wang C, Li C. Short-term toxicity of dibutyl phthalate to mice intestinal tissue. Toxicol Ind Health 2018; 35:20-31. [PMID: 30453839 DOI: 10.1177/0748233718807303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The objective of this study was to investigate changes in intestinal histopathology and expression of heat-shock proteins (HSPs) in the small intestinal tissue of mouse after acute exposure to dibutyl phthalate (DBP). Forty-eight 60-day-old Institute of Cancer Research (ICR) mice were administered DBP by gavage once a day for 10 days. The mice were divided into three groups of 16 mice each: the high-dose group was administered 500 mg/kg body weight (BW) DBP; the low-dose group was administered 50 mg/kg BW; and the control group was not administered DBP. Significant increases in the uterine index, ovary index, and testicular index were observed in the DBP-exposed groups compared to those in the control group. Villus height and V/ C ratio significantly increased ( p < 0.05) in the duodenum and decreased ( p < 0.05) in the jejunum after the administration of DBP. The goblet cell number decreased in both the duodenum and the jejunum of mice exposed to DBP ( p < 0.05) compared to the number in the control group mice. Damage to the structure of the small intestine was accompanied by a marked increase in HSP27 expression and a decrease in the expression of HSP70 and HSP90 in both high-dose and low-dose groups. These results indicate that elevated HSP27 levels in the duodenum and jejunum may be important markers for acute DBP exposure and that HSP27 may act as a protective protein involved in intestinal mucosa repair.
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Affiliation(s)
- Jimian Yu
- 1 Ningbo College of Health Sciences, Ningbo, China
| | - Wei Wang
- 2 College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
| | - Jianfeng Wang
- 3 Ningbo Academy of Inspection and Quarantine, Ningbo, China
| | - Chun Wang
- 3 Ningbo Academy of Inspection and Quarantine, Ningbo, China
| | - Caiyan Li
- 2 College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China
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64
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Yang M, Qian X, Wang N, Ding Y, Li H, Zhao Y, Yao S. Inhibition of MARCO ameliorates silica-induced pulmonary fibrosis by regulating epithelial-mesenchymal transition. Toxicol Lett 2018; 301:64-72. [PMID: 30391304 DOI: 10.1016/j.toxlet.2018.10.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/17/2018] [Accepted: 10/29/2018] [Indexed: 01/02/2023]
Abstract
Epithelial-mesenchymal transition (EMT) is linked to fibrosis following exposure to silica. The scavenger receptor, macrophage receptor with collagenous structure (MARCO) plays an important role in silica-induced inflammation, however, the effect of MARCO on silica-induced fibrosis has not been identified. We hypothesized that MARCO would regulate EMT and be involved in the development of silicosis. Herein, we found that MARCO was highly expressed in lung tissue after exposure to silica and a MARCO inhibitor PolyG could alleviate pulmonary fibrosis in vivo. Our results confirmed that the expression of epithelial marker such as E-cadherin decreased, while the expression of mesenchymal markers, including vimentin and α-SMA increased after silica treatment. Furthermore, PolyG administration efficiently blocked the mRNA and protein expression of EMT markers and decreased the level of fibrosis-related transcription factors and proteins, such as Col1a1, Col3a1, Collagen I and Collagen III in the lungs of silica-exposed rats. The findings demonstrate that the macrophage membrane receptor MARCO controls the fibrotic response through regulating EMT in experimental silicosis and suggest a novel target for preventive intervention.
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Affiliation(s)
- Meng Yang
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China; School of Public health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xinlai Qian
- The third Affiliated Hospital, Xinxiang Medical University, Xinxiang, 453003, China
| | - Na Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yingying Ding
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Haibin Li
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yingzheng Zhao
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Sanqiao Yao
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China.
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65
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Xu C, Zou C, Hussain M, Shi W, Shao Y, Jiang Z, Wu X, Lu M, Wu J, Xie Q, Ke Y, Long F, Tang L, Wu X. High expression of Sonic hedgehog in allergic airway epithelia contributes to goblet cell metaplasia. Mucosal Immunol 2018; 11:1306-1315. [PMID: 29867080 PMCID: PMC6160330 DOI: 10.1038/s41385-018-0033-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 03/15/2018] [Accepted: 04/27/2018] [Indexed: 02/04/2023]
Abstract
Sonic hedgehog (SHH) is abundantly expressed and critical for morphogenesis in embryonic lungs; however, SHH expression drops to a much lower level in mice from E17.5 and in humans from the 21st gestational week. We find that SHH expression is robustly upregulated in the airway epithelia of children with asthma or mouse models with allergic airway disease. Specifically, airway-specific SMO loss of function significantly suppresses allergen-induced goblet cell phenotypes, whereas an airway-specific SMO gain of function markedly enhances the goblet cell phenotypes in mouse models with allergic airway disease. Notably, intratracheal administration with SHH-neutralizing antibody or cyclopamine robustly attenuates goblet cell phenotypes in mouse models with allergic airway disease. Finally, we identify that Muc5AC gene encoding MUC5AC mucin serves as a direct target of GLI transcriptional factors in response to SHH, whereas the SAM-pointed domain-containing ETS transcription factor and Forkhead box A2, critical transcriptional factors for goblet cell phenotypes, both function as the effectors of GLIs in response to SHH stimulation. Together, the upregulation of SHH expression in allergic bronchial epithelia contributes to goblet cell metaplasia; thus, blockage of SHH signaling is a rational approach in a therapeutic intervention of epithelial remodeling in chronic airway diseases.
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Affiliation(s)
- Chengyun Xu
- Department of Pharmacology, Zhejiang University School of Medicine, 310058, Hangzhou, China
- Key Laboratory of CFDA for Respiratory Drug Research, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Chaochun Zou
- Department of Respiratory Medicine of the Children's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Musaddique Hussain
- Department of Pharmacology, Zhejiang University School of Medicine, 310058, Hangzhou, China
- Key Laboratory of CFDA for Respiratory Drug Research, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Wei Shi
- Department of Pharmacology, Zhejiang University School of Medicine, 310058, Hangzhou, China
- Key Laboratory of CFDA for Respiratory Drug Research, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Yanan Shao
- Department of Respiratory Medicine of the Children's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Ziyan Jiang
- Department of Respiratory Medicine of the Children's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Xiling Wu
- Department of Respiratory Medicine of the Children's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Meiping Lu
- Department of Respiratory Medicine of the Children's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Junsong Wu
- Department of Orthopedics of the First Affiliated Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Qiangmin Xie
- Department of Pharmacology, Zhejiang University School of Medicine, 310058, Hangzhou, China
- Key Laboratory of CFDA for Respiratory Drug Research, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Yuehai Ke
- Department of Pathology, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Fanxin Long
- Departments of Orthopedics, Medicine and Developmental Biology, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Lanfang Tang
- Department of Respiratory Medicine of the Children's Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China.
| | - Ximei Wu
- Department of Pharmacology, Zhejiang University School of Medicine, 310058, Hangzhou, China.
- Key Laboratory of CFDA for Respiratory Drug Research, Zhejiang University School of Medicine, 310058, Hangzhou, China.
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66
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Feng Q, Yao J, Zhou G, Xia W, Lyu J, Li X, Zhao T, Zhang G, Zhao N, Yang J. Quantitative Proteomic Analysis Reveals That Arctigenin Alleviates Concanavalin A-Induced Hepatitis Through Suppressing Immune System and Regulating Autophagy. Front Immunol 2018; 9:1881. [PMID: 30177931 PMCID: PMC6109684 DOI: 10.3389/fimmu.2018.01881] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 07/30/2018] [Indexed: 12/24/2022] Open
Abstract
Concanavalin A-induced autoimmune hepatitis is a well-established experimental model for immune-mediated liver injury. It has been widely used in the therapeutic studies of immune hepatitis. The in-depth analysis of dysregulated proteins from comparative proteomic results indicated that the activation of immune system resulted in the deregulation of autophagy. Follow-up studies validated that some immune related proteins, including Stat1, Pkr, Atg7, and Adrm1, were indeed upregulated. The accumulations of LC3B-II and p62 were confirmed by immunohistochemistry and Western blot analyses. Arctigenin pretreatment significantly alleviated the liver injury, as evidenced by biochemical and histopathological investigations, whose protective effects were comparable with Prednisone acetate and Cyclosporin A. Arctigenin pretreatment decreased the levels of IL-6 and IFN-γ, but increased the ones of IL-10. Next, the quantitative proteomic analysis demonstrated that ARC pretreatment suppressed the activation of immune system through the inhibition of IFN-γ signaling, when it downregulated the protein expressions of Stat1, P-Stat1, Pkr, P-Pkr, Bnip3, Beclin1, Atg7, LC3B, Adrm1, and p62. Meanwhile, Arctigenin pretreatment also reduced the gene expressions of Stat1, Pkr, and Atg7. These results suggested that Arctigenin alleviated autophagy as well as apoptosis through inhibiting IFN-γ/IL-6/Stat1 pathway and IL-6/Bnip3 pathway. In summary, the comparative proteomic analysis revealed that the activation of immune system led to Concanavalin A-induced hepatitis. Both autophagy and apoptosis had important clinical implications for the treatment of immune hepatitis. Arctigenin might exert great therapeutic potential in immune-mediated liver injury.
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Affiliation(s)
- Qin Feng
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China
| | - Jingchun Yao
- Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China
| | - Ge Zhou
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Wenkai Xia
- Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China
| | - Jingang Lyu
- Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China
| | - Xin Li
- Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China
| | - Tao Zhao
- Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China
| | - Guimin Zhang
- Center for New Drug Pharmacological Research of Lunan Pharmaceutical Group, State Key Laboratory, Generic Manufacture Technology of Chinese Traditional Medicine, Linyi, China.,School of Pharmacy, Linyi University, Linyi, China
| | - Ningwei Zhao
- Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.,Shimadzu Biomedical Research Laboratory, Shanghai, China
| | - Jie Yang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, China
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67
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Fan Y, Shen Z. The clinical value of HPV E6/E7 and STAT3 mRNA detection in cervical cancer screening. Pathol Res Pract 2018; 214:767-775. [DOI: 10.1016/j.prp.2018.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 01/16/2018] [Accepted: 02/08/2018] [Indexed: 01/10/2023]
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68
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Decellularized Rat Lung Scaffolds Using Sodium Lauryl Ether Sulfate for Tissue Engineering. ASAIO J 2018; 64:406-414. [DOI: 10.1097/mat.0000000000000654] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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69
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Mutant Huntingtin Causes a Selective Decrease in the Expression of Synaptic Vesicle Protein 2C. Neurosci Bull 2018; 34:747-758. [PMID: 29713895 DOI: 10.1007/s12264-018-0230-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/24/2018] [Indexed: 12/11/2022] Open
Abstract
Huntington's disease (HD) is a neurodegenerative disease caused by a polyglutamine expansion in the huntingtin (Htt) protein. Mutant Htt causes synaptic transmission dysfunctions by interfering in the expression of synaptic proteins, leading to early HD symptoms. Synaptic vesicle proteins 2 (SV2s), a family of synaptic vesicle proteins including 3 members, SV2A, SV2B, and SV2C, plays important roles in synaptic physiology. Here, we investigated whether the expression of SV2s is affected by mutant Htt in the brains of HD transgenic (TG) mice and Neuro2a mouse neuroblastoma cells (N2a cells) expressing mutant Htt. Western blot analysis showed that the protein levels of SV2A and SV2B were not significantly changed in the brains of HD TG mice expressing mutant Htt with 82 glutamine repeats. However, in the TG mouse brain there was a dramatic decrease in the protein level of SV2C, which has a restricted distribution pattern in regions particularly vulnerable in HD. Immunostaining revealed that the immunoreactivity of SV2C was progressively weakened in the basal ganglia and hippocampus of TG mice. RT-PCR demonstrated that the mRNA level of SV2C progressively declined in the TG mouse brain without detectable changes in the mRNA levels of SV2A and SV2B, indicating that mutant Htt selectively inhibits the transcriptional expression of SV2C. Furthermore, we found that only SV2C expression was progressively inhibited in N2a cells expressing a mutant Htt containing 120 glutamine repeats. These findings suggest that the synaptic dysfunction in HD results from the mutant Htt-mediated inhibition of SV2C transcriptional expression. These data also imply that the restricted distribution and decreased expression of SV2C contribute to the brain region-selective pathology of HD.
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70
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Ma X, Cui Y, Zhou H, Li Q. Function of mitochondrial pyruvate carriers in hepatocellular carcinoma patients. Oncol Lett 2018; 15:9110-9116. [PMID: 29805642 PMCID: PMC5958719 DOI: 10.3892/ol.2018.8466] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 07/09/2017] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial pyruvate carriers (MPC) have been identified as a critical component of energy metabolism in the cancer cells of multiple malignant tumor types. The aim of the present study was to investigate the association between the expression of MPC1 and MPC2 and the prognosis of patients with hepatocellular carcinoma (HCC). A total of 85 formalin-fixed paraffin-embedded HCC tissues were assessed using immunohistochemistry. A further 20 fresh pathological specimens, including cancer and adjacent normal liver tissues from patients who had undergone a hepatectomy, were analyzed using western blotting and reverse transcription-quantitative polymerase chain reaction. The relative expression of MPC1 and MPC2 was quantified using Image-Pro Plus software, and the association between MPC expression and clinical outcomes was analyzed by Student's t-test. MPC1 and MPC2 protein expression was significantly downregulated in HCC, but no association was identified between the expression of MPC1 or MPC2 and the clinicopathological characteristics of the patients. MPC1 mRNA levels were decreased in each cancer sample, while a mixture of increased and decreased MPC2 mRNA levels observed in the HCC samples. Multivariate regression analysis indicated that the protein level and the microvascular invasion of MPC1 were positively associated with the recurrence of HCC (P=0.000 and P=0.017, respectively). MPC1 may therefore serve as an attractive biomarker for the identification of patients with HCC at a high risk of recurrence following curative resection.
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Affiliation(s)
- Xiangming Ma
- Department of Hepatobiliary Surgery, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
| | - Yunlong Cui
- Department of Hepatobiliary Surgery, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
| | - Hongyuan Zhou
- Department of Hepatobiliary Surgery, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
| | - Qiang Li
- Department of Hepatobiliary Surgery, Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
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71
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Altered expression of IL-1β, IL-1RI, IL-1RII, IL-1RA and IL-4 could contribute to anovulation and follicular persistence in cattle. Theriogenology 2018; 110:61-73. [DOI: 10.1016/j.theriogenology.2017.12.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 12/19/2017] [Accepted: 12/31/2017] [Indexed: 12/13/2022]
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72
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Zheng Z, Liu Y, Zhu L, Tang J, Huang W, Cheng B. Lumbar sympathectomy reduces vascular permeability, possibly through decreased adenosine receptor A2a expression in the hind plantar skin of rats. Clin Hemorheol Microcirc 2018; 68:5-15. [PMID: 29439317 DOI: 10.3233/ch-160214] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND The effect of lumbar sympathectomy for the treatment of lower limb ischemia remains a matter of controversy. METHODS Sprague-Dawley rats were subjected to lumbar sympathectomy, after which Evans blue dye was injected into the hind plantar skin. Extravasation of dye was measured and compared with rats undergoing sham operation. Hind plantar skin was processed for HE staining, immunohistochemistry, and Western blot. RESULTS In sympathectomized rats, blue stained areas in hind plantar skin and concentrations of Evans blue were significantly less than that of sham sympathectomy (control) rats, both 2 weeks and 3 months after surgery. Expression of prostaglandin E2, bradykinin, bradykinin B2 receptor, and adenosine triphosphate were not significantly different between the sympathectomized and control groups. Adenosine receptor A2a expression was significantly reduced in the sympathectomized group both 2 weeks and 3 months after surgery. CONCLUSION Vascular permeability in the hind plantar skin of rats decreases following lumbar sympathectomy, possibly via reduced expression of adenosine receptor A2a.
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Affiliation(s)
- Zhifang Zheng
- Southern Medical University, Guangzhou, China.,Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China.,Department of Anatomy, School of Basic Medicine Sciences, Southern Medical University, Guangzhou, China
| | - Yishu Liu
- Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China.,The Graduate School of Third Military Medical University, Chongqing, China
| | - Lulu Zhu
- Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China
| | - Jianbing Tang
- Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China
| | - Wenhua Huang
- Southern Medical University, Guangzhou, China.,Department of Anatomy, School of Basic Medicine Sciences, Southern Medical University, Guangzhou, China
| | - Biao Cheng
- Southern Medical University, Guangzhou, China.,Department of Plastic Surgery, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China.,The Graduate School of Third Military Medical University, Chongqing, China.,Center of Wound Treatment, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, China.,The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, PLA, Guangzhou, China
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73
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Lardone MC, Argandoña F, Lorca M, Piottante A, Flórez M, Palma C, Ebensperger M, Castro A. Leydig cell dysfunction is associated with post-transcriptional deregulation of CYP17A1 in men with Sertoli cell-only syndrome. ACTA ACUST UNITED AC 2018; 24:203-210. [DOI: 10.1093/molehr/gay006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 02/07/2018] [Indexed: 12/19/2022]
Affiliation(s)
- M C Lardone
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa #1234, 2nd floor, Santiago, R.M., P.C. 8360160, Chile
| | - F Argandoña
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa #1234, 2nd floor, Santiago, R.M., P.C. 8360160, Chile
| | - M Lorca
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa #1234, 2nd floor, Santiago, R.M., P.C. 8360160, Chile
| | - A Piottante
- Pathologic Anatomy Service, Clínica Las Condes, Estoril #450, Las Condes, R.M., P.C. 7591046, Chile
| | - M Flórez
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa #1234, 2nd floor, Santiago, R.M., P.C. 8360160, Chile
| | - C Palma
- Urology Department, José Joaquín Aguirre Clinical Hospital, School of Medicine, University of Chile, Av. Santos Dumont #999, Independencia, R.M., P. C. 8380456, Chile
- Urology Department, Clínica Las Condes, Estoril #450, Las Condes, R.M., P.C. 7591046, Chile
| | - M Ebensperger
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa #1234, 2nd floor, Santiago, R.M., P.C. 8360160, Chile
- Urology Department, San Borja Arriarán Clinical Hospital, Santa Rosa #1234, Santiago, R.M., P.C. 8360160, Chile
| | - A Castro
- Institute of Maternal and Child Research, School of Medicine, University of Chile, Santa Rosa #1234, 2nd floor, Santiago, R.M., P.C. 8360160, Chile
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74
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Zhou C, Sun H, Zheng C, Gao J, Fu Q, Hu N, Shao X, Zhou Y, Xiong J, Nie K, Zhou H, Shen L, Fang H, Lyu J. Oncogenic HSP60 regulates mitochondrial oxidative phosphorylation to support Erk1/2 activation during pancreatic cancer cell growth. Cell Death Dis 2018; 9:161. [PMID: 29415987 PMCID: PMC5833694 DOI: 10.1038/s41419-017-0196-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/05/2017] [Accepted: 12/05/2017] [Indexed: 12/25/2022]
Abstract
HSP60 is a mitochondrial localized quality control protein responsible for maintaining mitochondrial function. Although HSP60 is considered both a tumor suppressor and promoter in different types of cancer, the role of HSP60 in human pancreatic ductal adenocarcinoma (PDAC) remains unknown. In this study, we demonstrated that HSP60 was aberrantly expressed in human pancreatic cancer tissues and cell lines. Analysis of the Cancer Genome Atlas database revealed that HSP60 expression is positively correlated with pancreatic cancer. Further, knockdown of HSP60 attenuated pancreatic ductal cancer cell proliferation and migration/invasion, whereas ectopic expression of HSP60 increased tumorigenesis. Using an in vivo tumorigenicity assay, we confirmed that HSP60 promoted the growth of pancreatic ductal cancer cells. Functional analyses demonstrated that HSP60 plays a key role in the regulation of mitochondrial function. Mechanistically, both HSP60 knockdown and oxidative phosphorylation (OXPHOS) inhibition by metformin decreased Erk1/2 phosphorylation and induced apoptosis and cell cycle arrest, whereas Erk1/2 reactivation with EGF promoted cell proliferation. Intriguingly, in vitro ATP supplementation partially restored Erk1/2 phosphorylation and promoted proliferation in PDAC cells with HSP60 knockdown and OXPHOS inhibition. These results suggest that mitochondrial ATP is an important sensor of Erk1/2 regulated apoptosis and the cell cycle in PDAC cells. Thus, our findings indicate for the first time that HSP60 may serve as a novel diagnostic target of human pancreatic cancer, and that inhibition of mitochondrial function using drugs such as metformin may be a beneficial therapeutic strategy targeting pancreatic cancer cells with aberrant function of the HSP60/OXPHOS/Erk1/2 phosphorylation axis.
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Affiliation(s)
- Chao Zhou
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Clinical Laboratory, Children's Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hongwei Sun
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chen Zheng
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jing Gao
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qingzi Fu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Nianqi Hu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoli Shao
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yingying Zhou
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jingting Xiong
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ke Nie
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Huaibin Zhou
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lijun Shen
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Hezhi Fang
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
| | - Jianxin Lyu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. .,Hangzhou Medical College, Hangzhou, Zhejiang, China.
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75
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Yan R, Zhu K, Dang C, Lan K, Wang H, Yuan D, Chen W, Meltzer SJ, Li K. Paf15 expression correlates with rectal cancer prognosis, cell proliferation and radiation response. Oncotarget 2018; 7:38750-38761. [PMID: 27246972 PMCID: PMC5122426 DOI: 10.18632/oncotarget.9606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 04/26/2016] [Indexed: 01/12/2023] Open
Abstract
Paf15, which participates in DNA repair, is overexpressed in numerous solid tumors. Blocking of Paf15 inhibits the growth of many types of cancer cells; while simultaneously enhancing cellular sensitivity to UV radiation. However, its expression and function in rectal cancer (RC) remain unknown. The current study was undertaken to assess the association of Paf15 expression with RC prognosis, as well as to explore the participation of Paf15 in the response of RC cells to irradiation. Increased Paf15 expression was observed in RC tissues and associated with pTNM stage and poor survival. In vitro, Paf15 induced increased RC cell proliferation while accelerating cell cycle progression, inhibiting cell death, and protecting against gamma radiation-induced DNA damage in RC cells. In conclusion, increased Paf15 expression is associated with increased RC proliferation, decreased patient survival, and a worse radiotherapeutic response.
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Affiliation(s)
- Rong Yan
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China.,Department of Medicine (GI Division) and Oncology, Johns Hopkins School of Medicine and Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, USA
| | - Kun Zhu
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Chengxue Dang
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Ke Lan
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Haonan Wang
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Dawei Yuan
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Wei Chen
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
| | - Stephen J Meltzer
- Department of Medicine (GI Division) and Oncology, Johns Hopkins School of Medicine and Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, USA
| | - Kang Li
- Department of Surgical Oncology, The First Affiliated Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi, China
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76
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Zhou J, Gao X, Huang S, Ma L, Cui Y, Wang H, Qiu J, Wang L, Dong Q, Chen Z, Wang X, Zhang D. Simvastatin Improves the Jaw Bone Microstructural Defect Induced by High Cholesterol Diet in Rats by Regulating Autophagic Flux. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4147932. [PMID: 30050930 PMCID: PMC6040281 DOI: 10.1155/2018/4147932] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 04/17/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The objective of this study is to evaluate the effect of simvastatin on the jaw bone microstructural defect and autophagy in rats with high cholesterol diet (HCD). METHODS Male Sprague-Dawley rats were fed a standard rodent chow (NC group) or a high cholesterol diet for 32 weeks and the HCD-fed rats were treated with vehicle (HC group) or simvastatin (5 mg/kg orally daily for 8 weeks, HC + SIM group, and n = 10/group). The static histomorphometric changes in the jaw bone tissues in individual rats were evaluated. The relative levels of OPG, RANKL, NF-κB, LC3, and p62 in the jaw bone tissues were determined by quantitative RT-PCR and/or immunohistochemistry. RESULTS Compared with the NC group, the HC groups had lower trabecular bone volume, trabecular thickness and trabecular number, and increased ratios of RANKL/OPG in the jaw bone, accompanied by enhanced NF-κB activation and autophagy. Simvastatin treatment inhabited these changes, including the decreased levels of serum proinflammatory cytokines and increased autophagy. CONCLUSION Simvastatin treatment could inhibit the hyperlipidemia-induced jaw bone microstructural defect in rats by increasing autophagic flux.
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Affiliation(s)
- Jianhua Zhou
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Shandong University, Jinan, Shandong 250012, China
- Department of Stomatology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, China
| | - Xiaoli Gao
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
| | - Shengyun Huang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
| | - Li Ma
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
| | - Yanjun Cui
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
| | - Hengkun Wang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
| | - Jianzhong Qiu
- Department of Stomatology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, China
| | - Lili Wang
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, Shandong 266071, China
| | - Quanjiang Dong
- Central Laboratories, Qingdao Municipal Hospital, Qingdao, Shandong 266071, China
| | - Zhenggang Chen
- Department of Stomatology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, China
| | - Xuxia Wang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Shandong University, Jinan, Shandong 250012, China
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, Shandong 250012, China
- Key Laboratory of Shandong Provincial Hospital, Jinan, Shandong 250012, China
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Shandong University, Jinan, Shandong 250012, China
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77
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Liu H, Gao Y, Song X, Ma Q, Zhang J, Pei D. A novel rejuvenation approach to induce endohormones and improve rhizogenesis in mature Juglans tree. PLANT METHODS 2018; 14:13. [PMID: 29449873 PMCID: PMC5806478 DOI: 10.1186/s13007-018-0280-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 02/03/2018] [Indexed: 05/14/2023]
Abstract
BACKGROUND Juglans is a difficult-to-root tree. In the present study, we successfully rejuvenated stock plants by grafting and then burying them horizontally. RESULTS Rooting rates of rejuvenated shoots were 98.1% 20 days after cutting. We recorded spatial and temporal variation in endogenous indole-3-acetic acid (IAA), abscisic acid (ABA), gibberellin A3 (GA3) and zeatin-riboside (ZR) under root induction. The four types of endohormones were mainly confined to the phloem sieve and companion cells (S&Cs) at the base of either rejuvenated or mature soft shoots. IAA and ABA levels were higher in rejuvenated shoots than in mature shoots, whereas the opposite was true for GA3 and ZR. During rooting induction, GA3 was the first hormone to be observed outside phloem S&Cs, followed by IAA, ABA and ZR. In rejuvenating soft shoots, IAA accumulated in the cross-sectional areas of the cambium and phloem, where root primordia were evident. CONCLUSIONS The improvement in the rooting ability that was evident after rejuvenation most likely results a transformation of the plant to a juvenile form, from elevated IAA levels in phloem S&Cs and from a promotion of all four endohormones outside phloem S&Cs, in particular, from an accumulation of IAA in the cross-sectional areas of the cambium and phloem.
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Affiliation(s)
- Hao Liu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Ying Gao
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
- College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin, 300384 China
| | - Xiaobo Song
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Qingguo Ma
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Junpei Zhang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Dong Pei
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
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78
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Fan J, Yu S, Cui Y, Xu G, Wang L, Pan Y, He H. Bcl-2/Bax protein and mRNA expression in yak (Bos grunniens) placentomes. Theriogenology 2017; 104:23-29. [DOI: 10.1016/j.theriogenology.2017.07.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 07/11/2017] [Accepted: 07/28/2017] [Indexed: 01/01/2023]
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79
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Qu Z, Su F, Qi X, Sun J, Wang H, Qiao Z, Zhao H, Zhu Y. Wnt/β-catenin signalling pathway mediated aberrant hippocampal neurogenesis in kainic acid-induced epilepsy. Cell Biochem Funct 2017; 35:472-476. [PMID: 29052243 DOI: 10.1002/cbf.3306] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/12/2017] [Accepted: 09/17/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Zhengyi Qu
- Department of Neurology; The Fourth Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Fang Su
- Department of Neurology; The Fourth Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Xueting Qi
- Department of Neurology; The Second Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Jianbo Sun
- Department of Neurology; The Second Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Hongcai Wang
- Department of Neurology; The Fourth Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Zhenkui Qiao
- Department of Neurology; The Fourth Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Hong Zhao
- Department of Neurology; The Fourth Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
| | - Yulan Zhu
- Department of Neurology; The Second Affiliated Hospital of Harbin Medical University; Harbin Heilongjiang China
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80
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Gou H, Zhao M, Fan S, Yuan J, Liao J, He W, Xu H, Chen J. Autophagy induces apoptosis and death of T lymphocytes in the spleen of pigs infected with CSFV. Sci Rep 2017; 7:13577. [PMID: 29051589 PMCID: PMC5648758 DOI: 10.1038/s41598-017-14082-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 10/02/2017] [Indexed: 01/04/2023] Open
Abstract
Lymphocyte depletion and immunosuppression are typical clinical characteristics of pigs infected with classical swine fever virus (CSFV). The apoptosis of virus-infected and bystander cells plays a role in the immunopathology of classical swine fever (CSF). Here, we offer the first evidence that autophagy is involved in apoptosis and death of T lymphocytes in the spleen of pigs infected with CSFV. Using immunohistochemical assays, we observed that more LC3II-positive cells appear in the T-cell zone of spleens. Spleen cell apoptosis was demonstrated using flow cytometry and TUNEL staining. Confocal immunofluorescence revealed that partial LC3II-positive cells were simultaneously TUNEL-positive. By cultivating spleen cells ex vivo, we demonstrated that the inhibition of autophagy by 3-MA treatment inhibited apoptosis and death of T lymphocytes caused by CSFV infection but did not have this effect on B lymphocytes. Further observations demonstrated that uninfected cells in the spleen were also undergoing autophagy in vivo. In summary, these results linked autophagy with the apoptosis and cell death of splenic T cells, providing a new outlook to understand the mechanism of T lymphocyte depletion and immunosuppression during CSF.
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Affiliation(s)
- Hongchao Gou
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Mingqiu Zhao
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Shuangqi Fan
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Jin Yuan
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Jiedan Liao
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Wencheng He
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Hailuan Xu
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Jinding Chen
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China.
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81
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Chen Y, Wang H, Xiong T, Zou R, Tang Z, Wang J. The role of LASS2 in regulating bladder cancer cell tumorigenicity in a nude mouse model. Oncol Lett 2017; 14:5149-5156. [PMID: 29113153 PMCID: PMC5662913 DOI: 10.3892/ol.2017.6880] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 01/26/2017] [Indexed: 01/01/2023] Open
Abstract
Previous in vitro studies have demonstrated that LAG1 longevity assurance homolog 2 (LASS2) is a novel tumor suppressor gene that is significantly associated with the proliferation and invasion ability of tumor cells. However, the role LASS2 serves in regulating bladder cancer cell tumorigenicity and tumor growth in vivo has not yet been elucidated in animal or clinical studies. In the present study, LASS2 knockdown in human bladder cancer EJ-M3 cells significantly promoted the growth of xenografts in nude mice compared with the control group, while overexpression of LASS2 suppressed tumor growth; however, this was not statistically significant. Furthermore, LASS2 knockdown resulted in more apparent heteromorphism and a higher activity of matrix metalloproteinase (MMP)-2 and MMP-9 in xenograft tumors. The data from the present study demonstrated that LASS2 knockdown significantly promoted the tumorigenicity and growth of EJ-M3 xenograft tumors in nude mice, and that LASS2 overexpression has a tendency to inhibit the growth of xenografts, suggesting that it may be a potential therapeutic target for bladder cancer.
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Affiliation(s)
- Yujin Chen
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Yunnan Institute of Urology, Kunming, Yunnan 650101, P.R. China.,Department of Nephrology, Chuxiong People's Hospital, Chuxiong, Yunnan 675000, P.R. China
| | - Haifeng Wang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Yunnan Institute of Urology, Kunming, Yunnan 650101, P.R. China
| | - Tao Xiong
- Department of Cadre Medical Care, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650031, P.R. China
| | - Renchao Zou
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Yunnan Institute of Urology, Kunming, Yunnan 650101, P.R. China
| | - Zhaoran Tang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Yunnan Institute of Urology, Kunming, Yunnan 650101, P.R. China
| | - Jiansong Wang
- Department of Urology, The Second Affiliated Hospital of Kunming Medical University, Yunnan Institute of Urology, Kunming, Yunnan 650101, P.R. China
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Dynamic distribution and tissue tropism of avian encephalomyelitis virus isolate XY/Q-1410 in experimentally infected Korean quail. Arch Virol 2017; 162:3447-3458. [PMID: 28795263 DOI: 10.1007/s00705-017-3504-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 06/20/2017] [Indexed: 02/05/2023]
Abstract
Avian encephalomyelitis (AE) is an important infectious poultry disease worldwide that is caused by avian encephalomyelitis virus (AEV). However, to date, the dynamic distribution of AEV in quails has not been well described. Quantitative real-time polymerase chain reaction (qPCR) and immunohistochemistry (IHC) assays were used to investigate the dynamic distribution and tissue tropism of AEV in experimentally infected Korean quail. AEV was detected in the cerebrum, cerebellum, proventriculus, intestine, liver, pancreas, spleen, bursa, lung and kidney as early as 3 days post-infection (dpi). The viral loads in the proventriculus, intestine, spleen and bursa were relatively higher than in other tissues. According to the qPCR results, AEV XY/Q-1410 infection lasted for at least 60 days in infected Korean quail. Immunohistochemistry-positive staining signals of AEV antigen were analysed by Image-Pro Plus software. A positive correlation between qPCR and IHC results was identified in most tissues. Our results provide an insight into the dynamic distribution of AEV in various tissues after infection. The distinct dynamic distribution of the viral genome in Korean quail in the early and late stages of infection suggests that AEV replication is affected by antibody levels and the maturity of the immune system of the host.
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Zhang ZZ, Wang SJ, Zhang JY, Jiang WB, Huang AB, Qi YS, Ding JX, Chen XS, Jiang D, Yu JK. 3D-Printed Poly(ε-caprolactone) Scaffold Augmented With Mesenchymal Stem Cells for Total Meniscal Substitution: A 12- and 24-Week Animal Study in a Rabbit Model. Am J Sports Med 2017; 45:1497-1511. [PMID: 28278383 DOI: 10.1177/0363546517691513] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Total meniscectomy leads to knee osteoarthritis in the long term. The poly(ε-caprolactone) (PCL) scaffold is a promising material for meniscal tissue regeneration, but cell-free scaffolds result in relatively poor tissue regeneration and lead to joint degeneration. HYPOTHESIS A novel, 3-dimensional (3D)-printed PCL scaffold augmented with mesenchymal stem cells (MSCs) would offer benefits in meniscal regeneration and cartilage protection. STUDY DESIGN Controlled laboratory study. METHODS PCL meniscal scaffolds were 3D printed and seeded with bone marrow-derived MSCs. Seventy-two New Zealand White rabbits were included and were divided into 4 groups: cell-seeded scaffold, cell-free scaffold, sham operation, and total meniscectomy alone. The regeneration of the implanted tissue and the degeneration of articular cartilage were assessed by gross and microscopic (histological and scanning electron microscope) analysis at 12 and 24 weeks postoperatively. The mechanical properties of implants were also evaluated (tensile and compressive testing). RESULTS Compared with the cell-free group, the cell-seeded scaffold showed notably better gross appearance, with a shiny white color and a smooth surface. Fibrochondrocytes with extracellular collagen type I, II, and III and proteoglycans were found in both seeded and cell-free scaffold implants at 12 and 24 weeks, while the results were significantly better for the cell-seeded group at week 24. Furthermore, the cell-seeded group presented notably lower cartilage degeneration in both femur and tibia compared with the cell-free or meniscectomy group. Both the tensile and compressive properties of the implants in the cell-seeded group were significantly increased compared with those of the cell-free group. CONCLUSION Seeding MSCs in the PCL scaffold increased its fibrocartilaginous tissue regeneration and mechanical strength, providing a functional replacement to protect articular cartilage from damage after total meniscectomy. CLINICAL RELEVANCE The study suggests the potential of the novel 3D PCL scaffold augmented with MSCs as an alternative meniscal substitution, although this approach requires further improvement before being used in clinical practice.
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Affiliation(s)
- Zheng-Zheng Zhang
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China
| | - Shao-Jie Wang
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China.,Department of Joint Surgery, Zhongshan Hospital of Xiamen University, Xiamen University, Xiamen, P.R. China
| | - Ji-Ying Zhang
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China
| | - Wen-Bo Jiang
- Clinical Translational R&D Center of 3D Printing Technology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, P.R. China
| | - Ai-Bing Huang
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China
| | - Yan-Song Qi
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China
| | - Jian-Xun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China
| | - Xue-Si Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P.R. China
| | - Dong Jiang
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China
| | - Jia-Kuo Yu
- Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, P.R. China
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Gu S, Xie R, Liu X, Shou J, Gu W, Che X. Long Coding RNA XIST Contributes to Neuronal Apoptosis through the Downregulation of AKT Phosphorylation and Is Negatively Regulated by miR-494 in Rat Spinal Cord Injury. Int J Mol Sci 2017; 18:ijms18040732. [PMID: 28368292 PMCID: PMC5412318 DOI: 10.3390/ijms18040732] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 03/17/2017] [Accepted: 03/22/2017] [Indexed: 01/16/2023] Open
Abstract
Recent evidence has suggested that long non-coding RNAs (lncRNAs) may play a significant role in the pathogenesis of several neurological diseases, including spinal cord injury (SCI). However, little is known about the role of lncRNAs in SCI. The aim of the present study was to evaluate the potential functions of lncRNAs in SCI and to identify the underlying mechanisms of action. We firstly analyzed Gene Expression Omnibus (GEO) datasets to investigate aberrantly-expressed lncRNAs which might be involved in the pathogenesis of SCI. The long non-coding RNA X-inactive specific transcript (XIST) was found to be one of the most significantly upregulated lncRNAs in the GEO dataset analysis, and is associated with apoptosis. We, therefore, selected this as a candidate lncRNA and investigated its function. We found that knockdown of lncRNA-XIST by Lv-shRNA had a prominent protective effect on SCI recovery by suppressing apoptosis through reactivation of the PI3K/AKT signaling pathway in rat spinal cord tissue. In particular, our results suggested that lncRNA-XIST may act as a competitive endogenous RNA, effectively becoming a sink for miR-494, leading to derepression of its target gene, phosphatase and tensin homolog deleted on chromosome ten (PTEN). In addition, an inverse relationship between lncRNA-XIST and miR-494 was observed in spinal cord tissues of SCI rats. Further study demonstrated that antagomiR-494 could reverse the protective effects of lncRNA-XIST knockdown on SCI rats through blocking the PTEN/PI3K/AKT signaling pathway. These results suggested that lncRNA-XIST knockdown may play an important role in limiting neuronal apoptosis in rats following SCI, and that the observed protective effects of lncRNA-XIST knockdown might have been mediated by its regulation on the phosphorylation of AKT by competitively binding miR-494. These findings have revealed, for the first time, the importance of the XIST/miR-494/PTEN/AKT signaling axis in the pathogenesis of SCI and suggest that lncRNA-XIST may be a promising molecular target for SCI therapy.
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Affiliation(s)
- Shixin Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Rong Xie
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Xiaodong Liu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Jiajun Shou
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Wentao Gu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
| | - Xiaoming Che
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China.
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85
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Xu X, Wu K, Zhao Y, Mei L. Stage I lung adenocarcinoma: the value of quantitative CT in differentiating pathological subtypes and predicting growth of subsolid nodules. Medicine (Baltimore) 2017; 96:e6595. [PMID: 28422852 PMCID: PMC5406068 DOI: 10.1097/md.0000000000006595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The aim of this study was to investigate feasibility of quantitative computed tomography (CT) measurements in predicting invasiveness and growth of nodular ground glass opacities (nGGOs).A set of 203 patients (group A) with nGGOs that were confirmed stage-I adenocarcinomas and 79 patients (group B) with nGGOs that were completely followed up were included. Lesions diameters, volume (VOL), maximum (MAX), mean (MEN), and standard deviation (STD) of CT attenuation were measured. P53 labeling index (LI) was evaluated through immunohistochemistry in group-A patients. Multivariate linear stepwise regressions were performed based on group-A lesions to calculate P53-LI prediction from CT measurements. The receiver operating characteristic (ROC) curve analyses were performed to assess the performance of P53-LI prediction in predicting invasiveness and growth of nGGOs. The Cox regression analysis was conducted to identify correlation between P53-LI Prediction and volume doubling time (VDT) of lesions in group B.Diameter, VOL, MEN, STD, and the P53 LI showed significant differences between lesions of different pathological invasiveness (P < .01). By multivariate linear regressions, MEN and STD were identified as independent variables indicating P53 LI (P < .001); thus, an equation was established to calculate P53-LI Prediction as: P53LI Prediction = 0.013 × MEN + 0.024 × STD + 9.741 (R square = 0.411, P < .001). The P53-LI Prediction showed good performance, similar as the actual one, in differentiating pathological invasiveness of nGGOs. In addition, the P53-LI Prediction demonstrated excellent performance in predicting growth of nGGOs (AUC = 0.833, P < .001) and independently forecasted VDT of nGGOs (β = 1.773, P < .001).The P53-LI Prediction that was calculated from preoperative quantitative CT measurements of nGGOs indicates lesions' invasiveness and allows for predicting growth of nGGOs.
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Affiliation(s)
| | | | | | - Liejun Mei
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, China
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Xu J, Liu D, Niu H, Zhu G, Xu Y, Ye D, Li J, Zhang Q. Resveratrol reverses Doxorubicin resistance by inhibiting epithelial-mesenchymal transition (EMT) through modulating PTEN/Akt signaling pathway in gastric cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:19. [PMID: 28126034 PMCID: PMC5270306 DOI: 10.1186/s13046-016-0487-8] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 12/30/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Gastric cancer is one of the major causes of cancer-related mortality worldwide. Most of patients presenting with inoperable gastric cancers rely on systemic chemotherapy for prolongation of survival. Doxorubicin (DOX) is one of the important agents against gastric cancer. Acquired DOX-resistance severely impedes the chemotherapeutic effect, invariably leading to poor prognosis. Resveratrol (RES) as a kind of phytoalexin has demonstrated anti-tumor functions in breast cancer and myeloid leukemia, but its function and mechanism are still unknown in gastric cancer treatment. METHODS CCK8 assay was used to detect the cytotoxicity of DOX and RES to gastric cancer cells. DOX-resistant subclone cell line (SGC7901/DOX) was derived from SGC7901 cells exposed to stepwise increasing concentrations of DOX treatment. We measured the migratory capabilities of SGC7901/DOX cells by Cell scratch test and Transwell assay. SGC7901/DOX cells were treated with DOX, RES, neither or both. Then we analyzed cell survival by CCK8 assay, colony formation by Colony-forming assay, cell apoptosis by Annexin-V-FITC and PI dual staining assay and cell migration by Cell scratch test and Transwell assay. Western blotting was conducted to detect the protein expressions of PTEN/Akt signaling pathway and EMT-related markers. Immunofluorescence was performed to confirm the EMT-related markers expressions. The xenograft model was used to assess the effect of DOX and RES in vivo. The key molecules associated with proliferation, apoptosis and EMT were evaluated by immunohistochemistry in tumor specimens. RESULTS SGC7901/DOX cells acquired drug resistance and enhancive migratory capability. RES enabled SGC7901/DOX cells to regain DOX sensitivity, mitigated the aggressive biological features, promoted cell apoptosis in vitro and inhibited tumor growth in vivo. Mechanistic studies revealed that SGC7901/DOX cells underwent epithelial-mesenchymal transition (EMT) which was induced by Akt activation, and through activating PTEN, RES inhibited the Akt pathway, and then achieved the reversion of EMT. CONCLUSION RES serves as a novel solution to reverse the DOX-resistance of gastric cancer via preventing EMT by modulating PTEN/Akt signaling pathway. DOX-RES combined treatment provides a promising future for gastric cancer patients to postpone drug resistance and prolong survival.
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Affiliation(s)
- Jiahui Xu
- 0000 0000 8877 7471grid.284723.8Nanfang Hospital/First Clinical Medical School, Southern Medical University, Guangzhou, 510515 China
| | - Deying Liu
- 0000 0000 8877 7471grid.284723.8Nanfang Hospital/First Clinical Medical School, Southern Medical University, Guangzhou, 510515 China
| | - Huilin Niu
- 0000 0000 8877 7471grid.284723.8Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515 China
| | - Guifang Zhu
- 0000 0000 8877 7471grid.284723.8Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515 China
| | - Yangwei Xu
- 0000 0000 8877 7471grid.284723.8Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515 China
| | - Danli Ye
- 0000 0000 8877 7471grid.284723.8Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515 China
| | - Jian Li
- 0000 0000 8877 7471grid.284723.8Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515 China
| | - Qingling Zhang
- 0000 0000 8877 7471grid.284723.8Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515 China ,0000 0000 8877 7471grid.284723.8Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 China
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Wang L, Dai Z, Xie J, Liao H, Lv C, Hu Y. Alteration of the RANKL/RANK/OPG System in Periprosthetic Osteolysis with Septic Loosening. Inflammation 2016; 39:218-227. [PMID: 26294373 DOI: 10.1007/s10753-015-0241-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pathogenesis of periprosthetic osteolysis with septic loosening remains incompletely understood. The purpose of this study was to investigate whether expression of the RANKL/RANK/OPG system is altered in septic interface membranes (SIMs). Seventeen cases with a SIM, 26 cases with an aseptic interface membrane (AIM), and 12 cases with a normal synovium (NS) were assessed. Scanning and transmission electron microscopy (SEM and TEM, respectively) were used to observe the microscopic morphology of three tissue conditions. Differences in RANKL, RANK, and OPG expression at the mRNA level were assessed by real-time quantitative PCR, and differences at the protein level were assessed by immunohistochemical staining and Western blotting. SEM showed wear debris widely distributed on the AIM surface, and TEM showed Bacillus activity in the SIM. RANKL expression and the RANKL/OPG ratio were significantly increased in SIMs. Imbalance in the RANKL/RANK/OPG system is related to periprosthetic osteolysis with septic loosening but is not the only possible pathogenic mechanism.
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Affiliation(s)
- Long Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
| | - Zixun Dai
- Department of Orthopaedics, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
| | - Jie Xie
- Department of Orthopaedics, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
| | - Hao Liao
- Department of Orthopaedics, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
| | - Cheng Lv
- Department of Orthopaedics, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China
| | - Yihe Hu
- Department of Orthopaedics, Xiangya Hospital, Central South University, No. 87 Xiangya Road, Changsha, Hunan, 410008, People's Republic of China.
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Chan KC, Yu MH, Lin MC, Huang CN, Chung DJ, Lee YJ, Wu CH, Wang CJ. Pleiotropic effects of acarbose on atherosclerosis development in rabbits are mediated via upregulating AMPK signals. Sci Rep 2016; 6:38642. [PMID: 27924924 PMCID: PMC5141573 DOI: 10.1038/srep38642] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 11/11/2016] [Indexed: 01/10/2023] Open
Abstract
Acarbose, an α-glucosidase inhibitor, is reported to reduce the incidence of silent myocardial infarction and slow the progression of intima-media thickening in patients with glucose intolerance. Here we investigate other impacts of acarbose on atherosclerosis development and the underlying mechanisms of atherosclerosis initiation and progression in vivo and in vitro. Rabbits fed a high cholesterol diet (HCD) were treated with acarbose (2.5-5.0 mg kg-1). Immunohistochemistry was used to assess the expression of inducible nitric oxide synthase (iNOS), Ras, proliferating cell nuclear antigen (PCNA), IL-6, β-galactosidase, and p-AMPK in atherosclerotic lesions. Treatment with acarbose in HCD-fed rabbits was found to significantly reduce the severity of aortic atheroma and neointimal expression of α-actin, PCNA, IL-6, TNF-α, Ras, and β-galactosidase; to significantly increase expression of iNOS and p-AMPK, but not to affect serum levels of glucose, total cholesterol, and LDL. Western blot analysis showed acarbose dose-dependently decreased β-galactosidase and Ras expression and increased p-AMPK expression in TNF-α-treated A7r5 cells. In addition, acarbose restored p-AMPK and iNOS levels in AMPK inhibitor- and iNOS inhibitor-treated A7r5 cells, respectively. In conclusion, acarbose can pleiotropically inhibit rabbit atherosclerosis by reducing inflammation, senescence, and VSMCs proliferation/migration via upregulating AMPK signals.
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Affiliation(s)
- Kuei-Chuan Chan
- Department of Internal Medicine, Chung-Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan.,School of Medicine, Institute of Medicine, Chung-Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan
| | - Meng-Hsun Yu
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung 402, Taiwan
| | - Ming-Cheng Lin
- Department of Internal Medicine, Chung-Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan.,School of Medicine, Institute of Medicine, Chung-Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan
| | - Chien-Ning Huang
- Department of Internal Medicine, Chung-Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan.,School of Medicine, Institute of Medicine, Chung-Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan
| | - Dai-Jung Chung
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung 402, Taiwan
| | - Yi-Ju Lee
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung 402, Taiwan.,Department of Pathology, Chung Shan Medical University Hospital, School of Medicine, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan
| | - Cheng-Hsun Wu
- Department of Anatomy, China Medical University, Taichung, 404, Taiwan
| | - Chau-Jong Wang
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, No. 110, Sec. 1, Jianguo N. Road, Taichung 402, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, No. 110, Sec. 1, Jianguo N. Road, Taichung, 402, Taiwan
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Huang H, Yie S, Liu Y, Wang C, Cai Z, Zhang W, Lan J, Huang X, Luo L, Cai K, Hou R, Zhang Z. Dietary resources shape the adaptive changes of cyanide detoxification function in giant panda (Ailuropoda melanoleuca). Sci Rep 2016; 6:34700. [PMID: 27703267 PMCID: PMC5050549 DOI: 10.1038/srep34700] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/19/2016] [Indexed: 11/16/2022] Open
Abstract
The functional adaptive changes in cyanide detoxification in giant panda appear to be response to dietary transition from typical carnivore to herbivorous bear. We tested the absorption of cyanide contained in bamboo/bamboo shoots with a feeding trial in 20 adult giant pandas. We determined total cyanide content in bamboo shoots and giant panda’s feces, levels of urinary thiocyanate and tissue rhodanese activity using color reactions with a spectrophotometer. Rhodanese expression in liver and kidney at transcription and translation levels were measured using real-time RT-PCR and immunohistochemistry, respectively. We compared differences of rhodanese activity and gene expressions among giant panda, rabbit (herbivore) and cat (carnivore), and between newborn and adult giant pandas. Bamboo shoots contained 3.2 mg/kg of cyanide and giant pandas absorbed more than 65% of cyanide. However, approximately 80% of absorbed cyanide was metabolized to less toxic thiocyanate that was discharged in urine. Rhodanese expression and activity in liver and kidney of giant panda were significantly higher than in cat, but lower than in rabbit (all P < 0.05). Levels in adult pandas were higher than that in newborn cub. Phylogenetic analysis of both nucleotide and amino acid sequences of the rhodanese gene supported a closer relationship of giant panda with carnivores than with herbivores.
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Affiliation(s)
- He Huang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Shangmian Yie
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Yuliang Liu
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Chengdong Wang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Zhigang Cai
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Wenping Zhang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Jingchao Lan
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Xiangming Huang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Li Luo
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Kailai Cai
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Rong Hou
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
| | - Zhihe Zhang
- Chengdu Research Base of Giant Panda Breeding, Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu, 610081, China
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Yang XL, Chen B, Zhang XQ, Chen X, Yang MH, Zhang W, Chen HR, Zang ZL, Li W, Yang H, Liu SY. Upregulations of CRH and CRHR1 in the Epileptogenic Tissues of Patients with Intractable Infantile Spasms. CNS Neurosci Ther 2016; 23:57-68. [PMID: 27534449 DOI: 10.1111/cns.12598] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 07/12/2016] [Accepted: 07/20/2016] [Indexed: 01/28/2023] Open
Abstract
AIM Infantile spasms (IS) are an age-specific epileptic syndrome with specific clinical symptom and electroencephalogram (EEG) features, lacking treatment options, and a poor prognosis. Excessive endogenous corticotropin-releasing hormone (CRH) in infant brain might result in IS. However, the data from human IS are limited. In our study, we investigated the expressions of CRH and its receptor type 1 (CRHR1) in surgical tissues from patients with IS and autopsy controls. METHODS Specimens surgically removed from 17 patients with IS, and six autopsy controls were included in the study. Real-time PCR, Western blotting, and immunostaining were used to detect the expressions of mRNA, protein expression, and distribution. The correlation between variates was analyzed by Spearman rank correlation. RESULTS The expressions of CRH and CRHR1 were significantly upregulated in the epileptogenic tissues of IS patients compared with the control group. CRH was distributed mainly in neurons, while CRHR1 was distributed in neurons, astrocytes, and microglia. The expression levels of CRH and CRHR1 were positively correlated with the frequency of epileptic spasms. Moreover, the expression of protein kinase C (PKC), which was an important downstream factor of CRHR1, was significantly upregulated in the epileptogenic tissues of patients with IS and was positively correlated with the CRHR1 expression levels and the frequency of epileptic spasms. CONCLUSION These results suggest that the CRH signal transduction pathway might participate in the epileptogenesis of IS, supporting the hypothesis that CRH is related to the pathogenesis of IS.
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Affiliation(s)
- Xiao-Lin Yang
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Bing Chen
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Xiao-Qing Zhang
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Xin Chen
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Mei-Hua Yang
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Wei Zhang
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Huan-Ran Chen
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Zhen-Le Zang
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Wei Li
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Hui Yang
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
| | - Shi-Yong Liu
- Department of Neurosurgery, Second affiliated Hospital, Third Military Medical University, Chongqing, China
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Ma X, Wang L, Li H, Zhang Y, Gao Y, Guo G, Liu K, Meng Q, Zhao C, Wang D, Song Z, Zhang X. Predictive Immunohistochemical Markers Related to Drug Selection for Patients Treated with Sunitinib or Sorafenib for Metastatic Renal Cell Cancer. Sci Rep 2016; 6:30886. [PMID: 27488093 PMCID: PMC4973254 DOI: 10.1038/srep30886] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 07/12/2016] [Indexed: 12/21/2022] Open
Abstract
Targeted drug decisions in metastatic renal cell carcinoma are exclusively made on the basis of clinical criteria. We investigated whether these biomarkers (HIF-1α, HIF-2α, CAIX, VEGF, VEGFR1, VEGFR2, VEGFR3, PDGFB, PDGFRA, PDGFRB, CD31, CD44, bcl-xL, KIT, p21, CXCR4, PTEN, (CSF)-1R, RET, and FLT-3) can predictive the different effects between sunitinib and sorafenib treatments and are available to guide targeted drug selection. We enrolled all patients who underwent nephrectomy with postoperative sunitinib- or sorafenib-treatment at our institution from 2007 to 2012. Immunohistochemical approach was applied to assess the potential differential effects of immunostainings between sunitinib- and sorafenib-treated groups. We found that patients with high HIF-2α, CD31 expression showed greater relative PFS and OS benefit and patients with high CAIX expression presented greater relative OS benefit from sunitinib than from sorafenib, patients with high VEGFR1 or PDGFRB expression levels exhibited worse relative PFS benefit from sunitinib than from sorafenib. Namely high HIF-2α, CD31, and CAIX expression levels along with low VEGFR1 and PDGFRB expression levels improved the benefit of sunitinib treatment compared with sorafenib treatment. These results can identify whether patients can benefit more from sunitinib or sorafenib for drug selection guidance, eventually with precision medicine.
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Affiliation(s)
- Xin Ma
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Lei Wang
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Hongzhao Li
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Yu Zhang
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Yu Gao
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Gang Guo
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Kan Liu
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Qingyu Meng
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Chaofei Zhao
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Dianjun Wang
- Department of Pathology, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Zhigang Song
- Department of Pathology, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
| | - Xu Zhang
- Department of Urology, State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital/Chinese PLA Medical Academy, Beijing, P. R. China
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Ingels A, Hew M, Algaba F, de Boer OJ, van Moorselaar RJA, Horenblas S, Zondervan P, de la Rosette JJMCH, Pilar Laguna Pes M. Vimentin over-expression and carbonic anhydrase IX under-expression are independent predictors of recurrence, specific and overall survival in non-metastatic clear-cell renal carcinoma: a validation study. World J Urol 2016; 35:81-87. [PMID: 27207480 DOI: 10.1007/s00345-016-1854-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Accepted: 05/11/2016] [Indexed: 01/06/2023] Open
Abstract
PURPOSE Clinical outcomes prognostic markers are awaited in clear-cell renal carcinoma (ccRCC) to improve patient-tailored management and to assess six different markers' influence on clinical outcomes from ccRCC specimen and their incremental value combined with TNM staging. MATERIALS AND METHODS This is a retrospective, multicenter study. One hundred and forty-three patients with pT1b-pT3N0M0 ccRCC were included. Pathology specimens from surgeries were centrally reviewed, mounted on a tissue micro-array and stained with six markers: CAIX, c-MYC, Ki67, p53, vimentin and PTEN. Images were captured through an Ultra Fast Scanner. Tumor expression was measured with Image Pro Plus. Cytoplasmic markers (PTEN, CAIX, vimentin, c-MYC) were expressed as surface percentage of expression. Nuclear markers (Ki67, p53) were expressed as number of cells/mm2. Clinical data and markers expression were compared with clinical outcomes. Each variable was included in the Cox proportional multivariate analyses if p < 0.10 on univariate analyses. Discrimination of the new marker was calculated with Harrell's concordance index. RESULTS At median follow-up of 63 months (IQR 35.0-91.8), on multivariate analysis, CAIX under-expression and vimentin over-expression were associated with worse survival (recurrence, specific and overall survival). A categorical marker CAIX-/Vimentin+ with cutoff points for CAIX and vimentin of 30 and 50 %, respectively, was designed. The new CAIX-/Vimentin+ marker presented a good concordance and comparable calibration to the reference model. Limitations are the retrospective design, the need for external validation and the large study period. CONCLUSION Using an automated technique of measurement, CAIX and vimentin are independent predictors of clinical outcomes in ccRCC.
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Affiliation(s)
- A Ingels
- Department of Urology, Academisch Medisch Centrum, Postbus 22660, 1100DD, Amsterdam, Netherlands. .,IR4M, CNRS, Univ. Paris Sud, Université Paris-Saclay, 94805, Villejuif, France. .,Service d'urologie Hôpital Bicêtre, 78, rue du Général Leclerc, 94271, Le Kremlin-Bicêtre, France.
| | - M Hew
- Department of Urology, Academisch Medisch Centrum, Postbus 22660, 1100DD, Amsterdam, Netherlands
| | - F Algaba
- Department of Pathology, Fundació Puigvert, Universitat Autonoma de Barcelona, c/Cartagena 340-350, 08025, Barcelona, Spain
| | - O J de Boer
- Department of Pathology, AMC University of Amsterdam, Postbus 22660, 1100DD, Amsterdam, Netherlands
| | - R J A van Moorselaar
- Department of Urology, VU University Medical Center, de Boelelaan 1117, 1081 HV, Amsterdam, Netherlands
| | - S Horenblas
- Department of Urology, Antoni Van Leeuwenhoek, Plesmanlaan 121, 1066 CX, Amsterdam, Netherlands
| | - P Zondervan
- Department of Urology, Academisch Medisch Centrum, Postbus 22660, 1100DD, Amsterdam, Netherlands
| | - J J M C H de la Rosette
- Department of Urology, Academisch Medisch Centrum, Postbus 22660, 1100DD, Amsterdam, Netherlands
| | - M Pilar Laguna Pes
- Department of Urology, Academisch Medisch Centrum, Postbus 22660, 1100DD, Amsterdam, Netherlands
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93
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Duan H, Ma L, Liu H, Zhang Y, Zhang Z, Yan X, Li X. Tanshinone IIA attenuates epithelial-mesenchymal transition to inhibit the tracheal narrowing. J Surg Res 2016; 206:252-262. [PMID: 27916370 DOI: 10.1016/j.jss.2016.04.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 04/05/2016] [Accepted: 04/28/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND This study examines the effects of tanshinone IIA (TIIA) on epithelial-mesenchymal transition (EMT) in tracheal transplantation and the ability of TIIA to inhibit tracheal narrowing after tracheal transplantation. Mechanisms that may be involved in this process are also explored. METHODS Human bronchial epithelial cells were treated in vitro with TGF-β1 for 72 h. The cells were pretreated with TIIA (40 μg/mL) or DMSO for 2 h before TGF-β1 stimulation. For the in vivo experiments, tracheas (5-6 rings) from Wistar rats were orthotopically transplanted into Sprague-Dawley rats. The experimental group received multiple infusions of sodium TIIA sulfonate (25 mg/kg, qd, intraperitoneally). The control group received infusions of the same volume of saline. Allografts were harvested at 3, 7, 10, 14, 35, and 90 d after transplantation and were examined for tracheal narrowing. Tracheal tissue samples and human bronchial epithelial cell were then subjected to further tests. RESULTS In the in vitro assay, epithelial cadherin expression was decreased after TGF-β1 stimulation, whereas α-smooth muscle actin and vimentin expression levels were increased. The expression levels of ZEB1 and Snail1 were also increased. These changes in expression were partially reversed by treatment with TIIA. In the in vivo assay, TIIA alleviated tracheal stenosis after tracheal allograft transplantation in rats and mitigated EMT by inhibiting the Smad signaling pathway and the expression of the transcription factors ZEB1 and Snail1. CONCLUSIONS Our research suggests that TIIA reduces tracheal narrowing after tracheal transplantation by suppressing TGF-β1-dependent EMT.
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Affiliation(s)
- Hongtao Duan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Lijie Ma
- Department of Respiratory Medicine, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Honggang Liu
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yong Zhang
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhipei Zhang
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaolong Yan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China.
| | - Xiaofei Li
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China.
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Gui SL, Teng LC, Wang SQ, Liu S, Lin YL, Zhao XL, Liu L, Sui HY, Yang Y, Liang LC, Wang ML, Li XY, Cao Y, Li FY, Wang WQ. Overexpression of CXCL3 can enhance the oncogenic potential of prostate cancer. Int Urol Nephrol 2016; 48:701-9. [PMID: 26837773 DOI: 10.1007/s11255-016-1222-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 01/12/2016] [Indexed: 10/22/2022]
Abstract
PURPOSE CXCL3 and its receptor CXCR2 were considered to play particularly important roles in the progression of malignancies. However, the investigations about CXCL3/CXCR2 axis in prostate cancer have been poorly involved. Herein we firstly reported our studies on the expression and biological roles of CXCL3 and CXCR2 in prostate cancer. METHODS Expression levels of CXCL3 and CXCR2 in prostate cancer cell lines (PC-3, DU145 and LNCaP), immortalized prostate stromal cell line (WPMY-1) and immortalized prostate epithelial cell line (RWPE-1) were investigated by RT-PCR, ELISA and western blot, whereas expression levels of CXCL3 in a prostate tissue microarray were detected by immunohistochemistry. Cell counting kit-8 and transwell assays were, respectively, utilized to determine the effects of exogenous CXCL3 on the cell proliferation and migration. We further examined whether CXCL3 could regulate the expression of genes correlated with prostate tumorigenesis by RT- PCR. RESULTS Elevated expression of CXCR2 was detected in DU145, LNCaP and RWPE-1. Moreover, high-level CXCL3 can be secreted by PC-3 and RWPE-1, and CXCL3 protein expression level in tissue microarray is concordant with prostate cancer metastasis. Exogenous CXCL3 does not contribute to proliferation, but has a significant effect on migration of prostate cancer cells and RWPE-1. Finally, our data showed that exogenous CXCL3 can regulate the expression of genes including ERK, TP73, NUMB, BAX and NDRG3. CONCLUSION Our findings suggest that CXCL3 and its receptor CXCR2 are overexpressed in prostate cancer cells, prostate epithelial cells and prostate cancer tissues, which may play multiple roles in prostate cancer progression and metastasis.
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Affiliation(s)
- Shi-Liang Gui
- Department of Urology, The First Affiliated Hospital, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Li-Chen Teng
- Department of Urology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Shu-Qiu Wang
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Shuang Liu
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Ying-Li Lin
- Department of Urology, Affiliated Xuzhou Hospital of Jiangsu University (Xuzhou Cancer Hospital), Xuzhou, Jiangsu, China
| | - Xiao-Lian Zhao
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Lei Liu
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Hong-Yu Sui
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Yang Yang
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Li-Chun Liang
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Mo-Lin Wang
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Xin-Yi Li
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Yu Cao
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Feng-Ying Li
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China
| | - Wei-Qun Wang
- Basic Medical College, Jiamusi University, Jiamusi, Heilongjiang, China.
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Wang W, Li J, Liu R, Zhang A, Yuan Z. Predictive value of mutant p53 expression index obtained from nonenhanced computed tomography measurements for assessing invasiveness of ground-glass opacity nodules. Onco Targets Ther 2016; 9:1449-59. [PMID: 27042113 PMCID: PMC4798217 DOI: 10.2147/ott.s101874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Purpose To predict p53 expression index (p53-EI) based on measurements from computed tomography (CT) for preoperatively assessing pathologies of nodular ground-glass opacities (nGGOs). Methods Information of 176 cases with nGGOs on high-resolution CT that were pathologically confirmed adenocarcinoma was collected. Diameters, total volumes (TVs), maximum (MAX), average (AVG), and standard deviation (STD) of CT attenuations within nGGOs were measured. p53-EI was evaluated through immunohistochemistry with Image-Pro Plus 6.0. A multiple linear stepwise regression model was established to calculate p53-EI prediction from CT measurements. Receiver-operating characteristic curve analysis was performed to compare the diagnostic performance of variables in differentiating preinvasive adenocarcinoma (PIA), minimally invasive adenocarcinoma (MIA), and invasive adenocarcinoma (IAC). Results Diameters, TVs, MAX, AVG, and STD showed significant differences among PIAs, MIAs, and IACs (all P-values <0.001), with only MAX being incapable to differentiate MIAs from IACs (P=0.106). The mean p53-EIs of PIAs, MIAs, and IACs were 3.4±2.0, 7.2±1.9, and 9.8±2.7, with significant intergroup differences (all P-values <0.001). An equation was established by multiple linear regression as: p53-EI prediction =0.001* TVs +0.012* AVG +0.022* STD +9.345, through which p53-EI predictions were calculated to be 4.4%±1.0%, 6.8%±1.3%, and 8.5%±1.4% for PIAs, MIAs, and IACs (Kruskal–Wallis test P<0.001; Tamhane’s T2 test: PIA vs MIA P<0.001, MIA vs IAC P<0.001), respectively. Although not significant, p53-EI prediction has a little higher area under the curve (AUC) than the actual one both in differentiating MIAs from PIAs (AUC 0.938 vs 0.914, P=0.263) and in distinguishing IACs from MIAs (AUC 0.812 vs 0.786, P=0.718). Conclusion p53-EI prediction of nGGOs obtained from CT measurements allows accurately estimating lesions’ pathology and invasiveness preoperatively not only from radiology but also from pathology.
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Affiliation(s)
- Wei Wang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, People's Republic of China
| | - Jian Li
- Department of Radiology, Tianjin Hospital, Tianjin, People's Republic of China
| | - Ransheng Liu
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, People's Republic of China
| | - Aixu Zhang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, People's Republic of China
| | - Zhiyong Yuan
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, People's Republic of China
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Du Q, Lin M, Yang JH, Chen JF, Tu YR. Overexpression of AQP5 Was Detected in Axillary Sweat Glands of Primary Focal Hyperhidrosis Patients. Dermatology 2016; 232:150-5. [DOI: 10.1159/000444081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 01/11/2016] [Indexed: 11/19/2022] Open
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Zhai X, Lin H, Chen Y, Chen X, Shi J, Chen O, Li J, Sun X. Hyperbaric oxygen preconditioning ameliorates hypoxia-ischemia brain damage by activating Nrf2 expression in vivo and in vitro. Free Radic Res 2016; 50:454-66. [PMID: 26729624 DOI: 10.3109/10715762.2015.1136411] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The present study aimed to investigate whether hyperbaric oxygen preconditioning (HBO-PC) could ameliorate hypoxia-ischemia brain damage (HIBD) by an increase of Nrf2 expression. P7 Sprague-Dawley rats (aged 7 d, n = 195) were used in two in vivo experiments, including BO-PC exposure experiments in non-HIBD models and treatment experiments in HIBD models. 2,3,5-triphenyltetrazolium chloride (TTC) staining, Nissl Staining, and TUNEL staining were performed. And expressions of Nrf2, HO-1, and GSTs were measured. For in vitro studies, oxygen-glucose deprivation cells were established. Morphological and apoptotic staining and gene silencing of Nrf2 by siRNA transfection were investigated. For exposure experiments, HBO-PC for longer time increased the expression of Nrf2 significantly. And for treatment experiments, HBO-PC treatment significantly decreased infarction area, lessened neuronal injury, reduced apoptosis, and increased both the expression of Nrf2 and activities of its downstream proteins. Cytology tests confirmed effects of HBO-PC treatments. Besides, Nrf2 siRNA significantly reduced protective effects of HBO-PC. These observations demonstrated that an up-regulation of Nrf2 by HBO-PC might play an important role in the generation of tolerance against HIBD.
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Affiliation(s)
- Xiao Zhai
- a Graduate Management Unit of Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China ;,b Department of Orthopedics , Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Han Lin
- c Department of Gastroenterology , Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Yu Chen
- c Department of Gastroenterology , Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Xiao Chen
- b Department of Orthopedics , Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Jiazi Shi
- a Graduate Management Unit of Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Ouyang Chen
- a Graduate Management Unit of Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Jiasi Li
- d Department of Neurology , Changhai Hospital Affiliated to the Second Military Medical University , Shanghai , PR China
| | - Xuejun Sun
- e Faculty of Naval Medicine , Second Military Medical University , Shanghai , PR China
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Transducin (Beta)-Like 1 X-Linked Receptor 1 Correlates with Clinical Prognosis and Epithelial-Mesenchymal Transition in Hepatocellular Carcinoma. Dig Dis Sci 2016; 61:489-500. [PMID: 26386862 DOI: 10.1007/s10620-015-3879-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/08/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Recent studies have demonstrated that transducin (beta)-like 1 X-linked receptor 1 (TBLR1) is involved in tumor progression. However, the exact role and clinical significance of TBLR1 in hepatocellular carcinoma (HCC) are poorly understood. AIM In this study, we aimed to investigate the expression and clinical significance of TBLR1 in HCC. METHODS Quantitative polymerase chain reaction and immunohistochemical staining were performed to detect the expression levels of TBLR1 in HCC tissue and adjacent noncancerous tissue (ANT). The relationships between TBLR1 expression and clinicopathological factors were examined in this study. The effects of TBLR1 on epithelial-mesenchymal transition (EMT) of HCC cells were investigated in vitro. RESULTS The expression levels of TBLR1 were elevated in HCC cell lines. TBLR1 mRNA in HCC tissue was markedly higher (P < 0.001) than that in ANT. High expression of TBLR1 is closely related to serum alpha fetoprotein (P = 0.047), BCLC stage (P < 0.001), maximum size of tumors (P < 0.001), tumor embolus (P < 0.001), and histological grade (P < 0.001). The disease-free survival and overall survival of HCC patients with high expression of TBLR1 were significantly shorter. Furthermore, we found that EMT of HCC cells could be induced by up-regulating TBLR1 and be inhibited by down-regulating TBLR1. ICG-001, the inhibitor of Wnt/β-catenin signaling, could suppress induction of EMT mediated by TBLR1. CONCLUSIONS Our finding suggested that TBLR1 is likely to be a potential prognostic indicator and therapeutic target for HCC and that TBLR1 may be implicated in EMT of HCC cells.
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Chen S, Ni G, Wu X, Zhu B, Liao Z, Wang Y, Liu X. Blocking IL-10 signalling at the time of immunization renders the tumour more accessible to T cell infiltration in mice. Cell Immunol 2015; 300:9-17. [PMID: 26607604 DOI: 10.1016/j.cellimm.2015.11.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/05/2015] [Accepted: 11/11/2015] [Indexed: 12/15/2022]
Abstract
We recently reported that blockade of IL-10 signalling at the time of a human papillomavirus (HPV) long E7 peptide/LPS immunization leads to the regression of established HPV-16 immortalized tumours in mice similar to that induced by long E7 peptide/incomplete Freund's adjuvant (IFA)-based vaccination. In this paper, we demonstrated that blockade of IL-10 signalling at the time of long E7 peptide/LPS could elicit stronger T cells responses and render the tumour more accessible for immune cell infiltration than vaccination with long E7 peptide/IFA. Furthermore, priming with long E7 peptide/LPS and IL10 signalling blockade then boosting with long E7 peptide/IFA elicits stronger CD8+ T cell responses than long E7 peptide/IFA immunization. The results suggest that priming with long E7 peptide/LPS and IL10 signalling inhibitor, then boosting with long E7 peptide/IFA elicits may lead to better HPV infection related tumour regression in clinic.
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Affiliation(s)
- Shu Chen
- Cancer Research Institute, Foshan First People's Hospital, Foshan, Guangdong 528000, China
| | - Guoying Ni
- School of Medical Science, Griffith Health Institute, Griffith University, Gold Coast, QLD 4222, Australia
| | - Xiaolian Wu
- Cancer Research Institute, Foshan First People's Hospital, Foshan, Guangdong 528000, China
| | - Bin Zhu
- Cancer Research Institute, Foshan First People's Hospital, Foshan, Guangdong 528000, China
| | - Zaowen Liao
- Cancer Research Institute, Foshan First People's Hospital, Foshan, Guangdong 528000, China
| | - Yuejian Wang
- Cancer Research Institute, Foshan First People's Hospital, Foshan, Guangdong 528000, China.
| | - Xiaosong Liu
- Cancer Research Institute, Foshan First People's Hospital, Foshan, Guangdong 528000, China; Inflammation and Healing Research Cluster, School of Health and Sport Sciences, University of Sunshine Coast, Maroochydore DC, QLD 4558, Australia.
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100
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Liu Y, Li X, Zhao J, Tang X, Tian S, Chen J, Shi C, Wang W, Zhang L, Feng X, Sun MX. Direct evidence that suspensor cells have embryogenic potential that is suppressed by the embryo proper during normal embryogenesis. Proc Natl Acad Sci U S A 2015; 112:12432-7. [PMID: 26396256 PMCID: PMC4603499 DOI: 10.1073/pnas.1508651112] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The suspensor is a temporary supporting structure of proembryos. It has been proposed that suspensor cells also possess embryogenic potential, which is suppressed by the embryo as an effect of the embryo-suspensor interaction. However, data to support this hypothesis are not yet available. In this report, using an in vivo living cell laser ablation technique, we show that Arabidopsis suspensor cells can develop into embryos after removing the embryo proper. The embryo proper plays a critical role in maintaining suspensor cell identity. However, this depends on the developmental stage; after the globular embryo stage, the suspensors no longer possess the potential to develop into embryos. We also reveal that hypophysis formation may be essential for embryo differentiation. Furthermore, we show that, after removing the embryo, auxin gradually accumulates in the top suspensor cell where cell division occurs to produce an embryo. Auxin redistribution likely reprograms the fate of the suspensor cell and triggers embryogenesis in suspensor cells. Thus, we provide direct evidence that the embryo suppresses the embryogenic potential of suspensor cells.
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Affiliation(s)
- Yuan Liu
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China; College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Xinbo Li
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Jing Zhao
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Xingchun Tang
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China; College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - Shujuan Tian
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Junyi Chen
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Ce Shi
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Wei Wang
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Liyao Zhang
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China
| | - Xianzhong Feng
- Northeast Institute of Geography and Agroecology, Key Laboratory of Soybean Molecular Design Breeding, Changchun, 130102, China
| | - Meng-Xiang Sun
- Department of Cell and Developmental Biology, College of Life Science, State Key Laboratory of Hybrid Rice, Wuhan University, Wuhan 430072, China;
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