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Ji Y, Chen Y, Tan X, Huang X, Gao Q, Ma Y, Yang S, Yin M, Yu M, Fang C, Wang Y, Shi Z, Chang J. Integrated transcriptomic and proteomic profiling reveals the key molecular signatures of brain endothelial reperfusion injury. CNS Neurosci Ther 2024; 30:e14483. [PMID: 37789643 PMCID: PMC11017417 DOI: 10.1111/cns.14483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 08/25/2023] [Accepted: 09/18/2023] [Indexed: 10/05/2023] Open
Abstract
BACKGROUND Reperfusion therapy after ischemic stroke often causes brain microvascular injury. However, the underlying mechanisms are unclear. METHODS Transcriptomic and proteomic analyses were performed on human cerebral microvascular endothelial cells following oxygen-glucose deprivation (OGD) or OGD plus recovery (OGD/R) to identify molecules and signaling pathways dysregulated by reperfusion. Major findings were further validated in a mouse model of cerebral ischemia and reperfusion. RESULTS Transcriptomic analysis identified 390 differentially expressed genes (DEGs) between the OGD/R and OGD group. Pathway analysis indicated that these genes were mostly associated with inflammation, including the TNF signaling pathway, TGF-β signaling pathway, cytokine-cytokine receptor interaction, NOD-like receptor signaling pathway, and NF-κB signaling pathway. Proteomic analysis identified 201 differentially expressed proteins (DEPs), which were primarily associated with extracellular matrix destruction and remodeling, impairment of endothelial transport function, and inflammatory responses. Six genes (DUSP1, JUNB, NFKBIA, NR4A1, SERPINE1, and THBS1) were upregulated by OGD/R at both the mRNA and protein levels. In mice with cerebral ischemia and reperfusion, brain TNF signaling pathway was activated by reperfusion, and inhibiting TNF-α with adalimumab significantly attenuated reperfusion-induced brain endothelial inflammation. In addition, the protein level of THBS1 was substantially upregulated upon reperfusion in brain endothelial cells and the peri-endothelial area in mice receiving cerebral ischemia. CONCLUSION Our study reveals the key molecular signatures of brain endothelial reperfusion injury and provides potential therapeutic targets for the treatment of brain microvascular injury after reperfusion therapy in ischemic stroke.
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Affiliation(s)
- Yabin Ji
- Department of NeurologyNanfang Hospital, Southern Medical UniversityGuangzhouChina
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Yiman Chen
- Department of NeurologyNanfang Hospital, Southern Medical UniversityGuangzhouChina
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Xixi Tan
- Department of NeurologyNanfang Hospital, Southern Medical UniversityGuangzhouChina
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
- Department of NeurologyYangjiang People's HospitalYangjiangChina
| | - Xiaowen Huang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Qiang Gao
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
- Department of NeurosurgeryThe First Affiliated Hospital of Zhengzhou University, Zhengzhou UniversityZhengzhouChina
| | - Yinzhong Ma
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Shilun Yang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Meifang Yin
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Min Yu
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Cheng Fang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Yu Wang
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina
| | - Zhu Shi
- Department of Neurology10th Affiliated Hospital, Southern Medical University (Dongguan People's Hospital)DongguanChina
| | - Junlei Chang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
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Li YT, Chen XD, Guo YY, Lin SW, Wang MZ, Xu JB, Wang XH, He GH, Tan XX, Zhuo C, Lin ZW. Emergence of eravacycline heteroresistance in carbapenem-resistant Acinetobacter baumannii isolates in China. Front Cell Infect Microbiol 2024; 14:1356353. [PMID: 38601741 PMCID: PMC11004246 DOI: 10.3389/fcimb.2024.1356353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/06/2024] [Indexed: 04/12/2024] Open
Abstract
Carbapenem-resistant Acinetobacter baumannii (CRAB) is resistant to almost all antibiotics. Eravacycline, a newer treatment option, has the potential to treat CRAB infections, however, the mechanism by which CRAB isolates develop resistance to eravacycline has yet to be clarified. This study sought to investigate the features and mechanisms of eravacycline heteroresistance among CRAB clinical isolates. A total of 287 isolates were collected in China from 2020 to 2022. The minimum inhibitory concentration (MIC) of eravacycline and other clinically available agents against A. baumannii were determined using broth microdilution. The frequency of eravacycline heteroresistance was determined by population analysis profiling (PAP). Mutations and expression levels of resistance genes in heteroresistant isolates were determined by polymerase chain reaction (PCR) and quantitative real-time PCR (qRT-PCR), respectively. Antisense RNA silencing was used to validate the function of eravacycline heteroresistant candidate genes. Twenty-five eravacycline heteroresistant isolates (17.36%) were detected among 144 CRAB isolates with eravacycline MIC values ≤4 mg/L while no eravacycline heteroresistant strains were detected in carbapenem-susceptible A. baumannii (CSAB) isolates. All eravacycline heteroresistant strains contained OXA-23 carbapenemase and the predominant multilocus sequence typing (MLST) was ST208 (72%). Cross-resistance was observed between eravacycline, tigecycline, and levofloxacin in the resistant subpopulations. The addition of efflux pump inhibitors significantly reduced the eravacycline MIC in resistant subpopulations and weakened the formation of eravacycline heteroresistance in CRAB isolates. The expression levels of adeABC and adeRS were significantly higher in resistant subpopulations than in eravacycline heteroresistant parental strains (P < 0.05). An ISAba1 insertion in the adeS gene was identified in 40% (10/25) of the resistant subpopulations. Decreasing the expression of adeABC or adeRS by antisense RNA silencing significantly inhibited eravacycline heteroresistance. In conclusion, this study identified the emergence of eravacycline heteroresistance in CRAB isolates in China, which is associated with high expression of AdeABC and AdeRS.
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Affiliation(s)
- Yi-tan Li
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Xian-di Chen
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Ying-yi Guo
- Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shan-wen Lin
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Ming-zhen Wang
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Jian-bo Xu
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Xiao-hu Wang
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Guo-hua He
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Xi-xi Tan
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
| | - Chao Zhuo
- Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhi-wei Lin
- Key Laboratory of Respiratory Disease, People’s Hospital of Yangjiang, Yangjiang, China
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Zhong Y, Tan X, Wang X, Jiang J, Song K, Chen H, Zhang H, Wang Z, Zhang L, Guo C, Liang H, Yu W. Generation of Vgll4-DreER transgenic mouse for visualizing and manipulating VGLL4-expressing cells in vivo. J Biochem Mol Toxicol 2023; 37:e23435. [PMID: 37352117 DOI: 10.1002/jbt.23435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/29/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023]
Abstract
Vestigial like family member 4 (VGLL4), a member of the Hippo pathway, is a transcriptional cofactor involved in many biological processes, such as tumor progression, postnatal heart growth, and muscle regeneration. However, the VGLL4 expression pattern in vivo remains unclear. To detect and trace Vgll4-expressing cells and their progeny, we generated and characterized a new tamoxifen-inducible Dre knock-in mouse line, Vgll4-DreER. This mouse line expressed DreER (Dre recombinase fused to the estrogen receptor) under the control of the endogenous Vgll4 promoter. After crossing the Vgll4-DreER mouse line with the Dre-responsive reporter H11-rRFP, Dre-mediated recombination in the tissue was monitored on the basis of red fluorescent protein (RFP) signals, which indicated the distribution of VGLL4-positive cells in vivo. Our data revealed that VGLL4 is widely expressed in various cell types at embryonic and neonatal stages. After comparison with our previously reported Vgll4-GFP mouse, we found that the RFP signal profile was wider than the green fluorescent protein (GFP) pattern, indicating that Vgll4-DreER is more sensitive for labeling VGLL4-expressing cells. We next used a dual-recombination system to simultaneously label VGLL4- and keratin 5 (KRT5)-positive cell populations, and no crosstalk was observed in the Krt5-CreER;Vgll4-DreER;R26-rGlR mice. Taken together, the Vgll4-DreER mouse line is a valuable new tool for examining the precise VGLL4 expression profile and conditional manipulating of VGLL4-expressing cells and their progeny.
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Affiliation(s)
- Yazhu Zhong
- Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, Guangdong, China
| | - Xixi Tan
- Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, Guangdong, China
| | - Xiaodong Wang
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China
| | - Jun Jiang
- School of Life Science, Yunnan University, Kunming, Yunnan, China
| | - Kai Song
- School of Life Science, Yunnan University, Kunming, Yunnan, China
| | - Haiyuan Chen
- Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, Guangdong, China
| | - Hao Zhang
- Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, Guangdong, China
| | - Zuoyun Wang
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lei Zhang
- School of Life Science and Technology, Shanghai Tech University, Shanghai, China
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Chunming Guo
- School of Life Science, Yunnan University, Kunming, Yunnan, China
| | - Hongfeng Liang
- Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, Guangdong, China
| | - Wei Yu
- Key Laboratory of Respiratory Disease, People's Hospital of Yangjiang, Yangjiang, Guangdong, China
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Ji Y, Gao Q, Ma Y, Wang F, Tan X, Song D, Hoo RLC, Wang Z, Ge X, Han H, Guo F, Chang J. An MMP-9 exclusive neutralizing antibody attenuates blood-brain barrier breakdown in mice with stroke and reduces stroke patient-derived MMP-9 activity. Pharmacol Res 2023; 190:106720. [PMID: 36893823 DOI: 10.1016/j.phrs.2023.106720] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/27/2023] [Accepted: 03/06/2023] [Indexed: 03/09/2023]
Abstract
Rapid upregulation of matrix metalloproteinase 9 (MMP-9) leads to blood-brain barrier (BBB) breakdown following stroke, but no MMP-9 inhibitors have been approved in clinic largely due to their low specificities and side effects. Here, we explored the therapeutic potential of a human IgG monoclonal antibody (mAb), L13, which was recently developed with exclusive neutralizing specificity to MMP-9, nanomolar potency, and biological function, using mouse stroke models and stroke patient samples. We found that L13 treatment at the onset of reperfusion following cerebral ischemia or after intracranial hemorrhage (ICH) significantly reduced brain tissue injury and improved the neurological outcomes of mice. Compared to control IgG, L13 substantially attenuated BBB breakdown in both types of stroke model by inhibiting MMP-9 activity-mediated degradations of basement membrane and endothelial tight junction proteins. Importantly, these BBB-protective and neuroprotective effects of L13 in wild-type mice were comparable to Mmp9 genetic deletion and fully abolished in Mmp9 knockout mice, highlighting the in vivo target specificity of L13. Meanwhile, ex vivo co-incubation with L13 significantly neutralized the enzymatic activities of human MMP-9 in the sera of ischemic and hemorrhagic stroke patients, or in the peri-hematoma brain tissues from hemorrhagic stroke patients. Overall, we demonstrated that MMP-9 exclusive neutralizing mAbs constitute a potential feasible therapeutic approach for both ischemic and hemorrhagic stroke.
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Affiliation(s)
- Yabin Ji
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qiang Gao
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450001, China; Department of Neurosurgery, Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - Yinzhong Ma
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Fang Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450001, China
| | - Xixi Tan
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; Department of Neurology, Yangjiang People's Hospital, Yangjiang 529500, China
| | - Dengpan Song
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450001, China
| | - Ruby L C Hoo
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong 999077, China
| | - Zening Wang
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, USA
| | - Xin Ge
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521, USA
| | - Hongjie Han
- Department of Neurosurgery, Pingdingshan Second People's Hospital, Pingdingshan 467000, China
| | - Fuyou Guo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450001, China.
| | - Junlei Chang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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Tan XX, Wang L, Zhang JM. [Application of hybrid surgery in the clipping of large complex paraclinoid aneurysms]. Zhonghua Yi Xue Za Zhi 2022; 102:1468-1471. [PMID: 35599413 DOI: 10.3760/cma.j.cn112137-20210826-01940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nine patients with large complex paraclinoid aneurysms were treated by hybrid surgery in the Second Affiliated Hospital of Zhejiang University between January 2016 and July 2021. Intraoperative angiography was conducted for real-time evaluation of the aneurysm and its clipping efficacy. A total of 8 aneurysms were clipped under temporary proximal control with balloon occlusion. Suction decompression was simultaneously applied in 2 of these cases. After surgery, 2 patients developed symptomatic cerebral infarction, 3 patients developed transient oculomotor nerve palsy, but no patients had vision deterioration. Postoperative follow-up showed that small neck residue occurred in 1 case, but with the rest of aneurysms were completely occluded without parent artery stenosis. Hybrid surgery was proved to be advantageous in real-time assessment of aneurysm morphology and clipping efficacy. Combination of temporary proximal balloon occlusion and suction decompression technique can help in reducing the difficulty of aneurysm exposure and remodeling, thereby improving the outcome and decreasing the complications.
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Affiliation(s)
- X X Tan
- Department of Neurosurgery, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China
| | - L Wang
- Department of Neurosurgery, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China
| | - J M Zhang
- Department of Neurosurgery, the Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310009, China
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Xiong D, Sheng Y, Ding S, Chen J, Tan X, Zeng T, Qin D, Zhu L, Huang A, Tang H. LINC00052 regulates the expression of NTRK3 by miR-128 and miR-485-3p to strengthen HCC cells invasion and migration. Oncotarget 2018; 7:47593-47608. [PMID: 27351280 PMCID: PMC5216964 DOI: 10.18632/oncotarget.10250] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 06/06/2016] [Indexed: 12/16/2022] Open
Abstract
Long non-coding RNAs (LncRNAs) are a group of RNAs that are more than 200 nt in length but cannot encode proteins. Accumulating evidences showed that abnormal LncRNA expressions are highly involved in many kinds of tumor. By using gene trap methods which could knockdown gene expression to find important genes, we found one LncRNA which called intergenic non-protein coding RNA 52 (LINC00052) has the ability to inhibit invasion and migration of hepatocarcinoma cells. We found that invasion, migration and proliferation abilities in SMMC7721 cell were inhibited after up-expressing LINC00052. We identified that NTRK3 was the target gene of LINC00052. Down-expression of NTRK3 could increase SMMC7721 cell invasion, migration and proliferation. Meanwhile, we discovered that LINC00052 could regulate NTRK3 expression by forming complementary base pairing with miR-128 and miR-485-3p to reduce the luciferase activity of NTRK3 3′UTR. These results reveal a new mechanism for understanding hepatocarcinoma cells invasion and migration.
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Affiliation(s)
- Dongmei Xiong
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
| | - Yanrui Sheng
- Department of Clinical Laboratory, Jining No.1 People's Hospital, Jining, China
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Juan Chen
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xixi Tan
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Tao Zeng
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dongdong Qin
- Department of Clinical Laboratory, Jining No.1 People's Hospital, Jining, China
| | - Liying Zhu
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ailong Huang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
| | - Hua Tang
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Cao Y, Chen J, Wang D, Peng H, Tan X, Xiong D, Huang A, Tang H. Upregulated in Hepatitis B virus-associated hepatocellular carcinoma cells, miR-331-3p promotes proliferation of hepatocellular carcinoma cells by targeting ING5. Oncotarget 2016; 6:38093-106. [PMID: 26497554 PMCID: PMC4741986 DOI: 10.18632/oncotarget.5642] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 10/02/2015] [Indexed: 02/07/2023] Open
Abstract
Hepatitis B virus (HBV) is a major risk factor for development and progression of hepatocellular carcinoma (HCC). It has been reported that viral infection can interfere with cellular microRNA (miRNA) expression and participate in the pathogenesis of oncogenicity. Our miRNAs array data indicated that miR-331-3p expression in HCC cell lines increased, but the relationship between miR-331-3p expression and HBV activity is unclear. Here, we observed elevated expression of miR-331-3p in different HCC cell lines expressing HBV. HBV, especially HBx, promotes miR-331-3p expression by enhancing its promoter activity. Using a miRNA target prediction database miRBase, we identified ING5 to be a novel target gene of miR-331-3p. miR-331-3p could inhibit ING5 expression by directly targeting its 3′-untranslated region (3′-UTR). As predicted, HBV was confirmed to repress ING5 at both mRNA and protein levels by promoting miR-331-3p expression. Our result indicated that miR-331-3p expression promotes proliferation of SMMC7721 cells by inhibiting ING5. ING5 overexpression promoted cell apoptosis in HCC cell lines. We also found ING5 expression was decreased in tumor tissue of HCC patient with HBV infection compared to its expression in para-carcinoma tissues. Conclusion: These results showed that miR-331-3p is upregulated by HBV and promotes proliferation of HCC cells though repression of ING5 expression. These data provide new insights for understanding the mechanisms of HBV-related HCC pathogenesis.
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Affiliation(s)
- Yiyi Cao
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Juan Chen
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dan Wang
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hong Peng
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Xixi Tan
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dongmei Xiong
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Ailong Huang
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Zhejiang University, Hangzhou, China
| | - Hua Tang
- Key Laboratory of Molecular Biology on Infectious Diseases, Ministry of Education, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
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Li B, Lu L, Zhong M, Tan XX, Liu CY, Guo Y, Yi X. Terbinafine inhibits KSR1 and suppresses Raf-MEK-ERK signaling in oral squamous cell carcinoma cells. Neoplasma 2013; 60:406-12. [PMID: 23581412 DOI: 10.4149/neo_2013_052] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Terbinafine inhibits the proliferation of many types of cancer cells, but the underlying mechanism remains to be determined. By computer simulation, we found that kinase suppressor of Ras 1 (KSR1) is a possible target of terbinafine. Treatment of human oral squamous cell carcinoma (OSCC) KB cells with either terbinafine or siRNA to knockdown KSR1 reduced proliferation and induced apoptosis, which was accompanied by suppression of the Raf-MEK-ERK pathway. In vivo, KSR1 expression was significantly associated with the clinical staging of OSCC and the smoking habit of patients. Kaplan Meyer survival analysis demonstrated that the cumulative survival time of patients without KSR1 expression was significantly longer than those with KSR1 overexpression. Our data provide the basis for developing terbinafine to treat OSCC.
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Affiliation(s)
- B Li
- Department of Oral Anatomy and Physiology, China Medical University, Liaoning Province, People's Republic of China.
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Bondos SE, Tan XX. Combinatorial transcriptional regulation: the interaction of transcription factors and cell signaling molecules with homeodomain proteins in Drosophila development. Crit Rev Eukaryot Gene Expr 2002; 11:145-71. [PMID: 11693959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Patterning and cell fate specification during development require complex interplay among multiple families of transcription factors to establish, maintain, and coordinate transcriptional cascades. During these processes, homeodomain proteins and cell signaling proteins cooperate to generate tissue-and stage-specific responses. This review of physical and genetic interactions in Drosophila melanogaster development highlights the cross-talk among these protein families. Protein-protein association can modulate regulation by both signal transduction-regulated transcription factors and homeodomain proteins, as observed in Drosophila and other organisms. Enhancers or genes regulated by multiple transcription factors provide opportunities for protein-protein binding to modulate transcription factor function. Combinatorial regulation of several enhancers by homeodomain proteins and cell signaling-regulated transcription factors is discussed; detailed maps of the genetic interactions that pattern the embryonic midgut and the larval wing imaginal disc are used to illustrate the multiplicity of potential protein-protein interactions. These interactions potentially provide direct mechanisms for communication between transcription factors as well as for generating the requisite functional specificity.
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Affiliation(s)
- S E Bondos
- Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005, USA
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Tan XX, Costa LG. Postnatal development of muscarinic receptor-stimulated phosphoinositide metabolism in mouse cerebral cortex: sensitivity to ethanol. Brain Res Dev Brain Res 1995; 86:348-53. [PMID: 7656428 DOI: 10.1016/0165-3806(95)00024-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An enhanced coupling of cholinergic muscarinic receptors to phosphoinositide metabolism had been previously observed in brain from immature rat. This study reports that the postnatal development of muscarinic receptor-stimulated phosphoinositide metabolism is also enhanced in cerebral cortex slices from immature Swiss-Webster and Balb-c mice, as compared to adults. Response to the agonist carbachol was lower on postnatal day 3, peaked between days 5 and 12 and then declined to adult levels. Density of muscarinic binding sites, measured with the M1 ligand [3H]telenzepine on postnatal day 7, was, on the other hand, only half of the adult value. Phosphoinositide hydrolysis stimulated by glutamate decreased with age, while that elicited by norepinephrine increased. These results are also similar to those previously reported in the rat. Ethanol has been found to inhibit muscarinic receptor-stimulated phosphoinositide metabolism in rat brain in an age-dependent manner. This was confirmed in mouse brain, where ethanol inhibited this response in cerebral cortex of immature but not adult animals. These results indicate that the enhanced muscarinic receptor-stimulated phosphoinositide metabolism, which coincides with the brain growth spurt, is similar in rats and mice. Mice may be a useful species in which to genetically manipulate muscarinic receptors to gain a better understanding of their potential role in brain development.
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Affiliation(s)
- X X Tan
- Department of Environmental Health, University of Washington, Seattle, USA
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Abstract
In utero exposure to cocaine has been shown to produce somatic and behavioral effects. As microencephaly is often present in children born from cocaine-addicted mothers, aim of the present study was to develop an animal model for cocaine-induced microencephaly. Rats were treated with cocaine (20, 30 or 50 mg/kg/day, s.c., each dose divided in two equal doses given 3 h apart) from postnatal day 4 through 10. None of the doses had any effect on growth, however, at 50 mg/kg, cocaine caused a significant decrease in brain weight, measured on day 12. The effect of cocaine was similar in male and female rats, and microencephaly was still present in 45-day-old animals. When the same dose of cocaine was given as a single daily injection, long-lasting microencephaly was also present, but it was accompanied by a decrease in body weight and significant toxicity. Ethanol (4 g/kg), used as a positive control, also caused microencephaly without affecting body weight, but, differently from cocaine, its effect was more pronounced in female animals. Blood and brain levels of cocaine and its metabolites norcocaine and benzoylecgonine were measured by HPLC during treatment (postnatal day 8). After administration of the 50 mg/kg dose, concentrations of cocaine were 1.92 micrograms/g in brain and 0.94 microgram/ml in blood. These levels are encountered in cases of cocaine overdoses and have been found in meconium of newborns from crack-addicted mothers.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- X X Tan
- Department of Environmental Health, University of Washington, Seattle 98195, USA
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12
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Tan XX, Costa LG. Inhibition of muscarinic receptor-stimulated phosphoinositide metabolism by cocaine, norcocaine and cocaethylene in rat brain. Brain Res Dev Brain Res 1994; 79:132-5. [PMID: 8070057 DOI: 10.1016/0165-3806(94)90057-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The interaction of cocaine, its metabolites norcocaine and benzoylecgonine, and cocaethylene, which is formed following a combined cocaine and ethanol exposure, with muscarinic receptor binding and phosphoinositide metabolism was investigated in brain from immature rats. Cocaine and norcocaine inhibited binding of [3H]telenzepine and carbachol-stimulated phosphoinositide metabolism in cerebral cortex, while benzoylecgonine was devoid of any inhibitory activity. Cocaethylene was the most potent inhibitor of both binding and phosphoinositide metabolism. The effect of cocaine was more pronounced at the muscarinic receptors, but a small inhibition of histamine--and serotonin--stimulated phosphoinositide metabolism was also observed.
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Affiliation(s)
- X X Tan
- Department of Environmental Health, University of Washington, Seattle 98195
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Castoldi AF, Coccini T, Rossi A, Nicotera P, Costa LG, Tan XX, Manzo L. Biomarkers in environmental medicine: alterations of cell signalling as early indicators of neurotoxicity. Funct Neurol 1994; 9:101-9. [PMID: 7926888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Many environmental and occupational chemicals are known to affect the central and/or peripheral nervous system, causing changes that may result in neurological and psychiatric disorders. Because of the limited accessibility of the mammalian nervous tissue, new strategies are being developed to identify biochemical parameters of neuronal cell function, which can be measured in easily obtained tissues, such as blood cells, as potential markers of the chemically-induced alterations occurring in the nervous system. This review includes a comparative analysis of the effects of mercurials on calcium signalling in the neuroadrenergic PC12 cells and rat splenic T lymphocytes in an attempt to characterize this second messenger system as a potential indicator of subclinical toxicity. The suitability of neurotransmitter receptors in blood cells, such as the sigma binding sites, as biological markers of psychiatric disorders is also discussed.
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Tan XX, Castoldi AF, Manzo L, Costa LG. Interaction of ethanol with muscarinic receptor-stimulated phosphoinositide metabolism during the brain growth spurt in the rat: role of acetaldehyde. Neurosci Lett 1993; 156:13-6. [PMID: 8414174 DOI: 10.1016/0304-3940(93)90427-m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The developing brain is extremely sensitive to the neurotoxicity of ethanol; however, the mechanism(s) of its developmental neurotoxicity are still elusive. In the developing rat brain, ethanol exerts an age-, brain region-, and receptor-specific inhibitory effect on muscarinic receptor-stimulated phosphoinositide metabolism, which may be linked to some of the neurotoxic effects of ethanol found in children with fetal alcohol syndrome. Since some studies have suggested that the ethanol metabolite acetaldehyde may mediate, at least in part, the developmental effects of ethanol, in the present study we have examined whether acetaldehyde would inhibit carbachol-stimulated phosphoinositide metabolism in brain slices from immature rats. We also tested propionaldehyde, the corresponding aldehyde of n-propanol, another alcohol shown to cause microencephaly and to affect phosphoinositide metabolism in the developing rat. Neither acetaldehyde nor propionaldehyde, at concentrations up to 1 mM, had any inhibitory effect on this system, while the two alcohols did, as previously reported. These results suggest that ethanol itself may be the primary agent responsible for its developmental neurotoxicity.
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Affiliation(s)
- X X Tan
- Department of Environmental Health, University of Washington, Seattle 98195
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Tan XX, Tang C, Castoldi AF, Manzo L, Costa LG. Effects of inorganic and organic mercury on intracellular calcium levels in rat T lymphocytes. J Toxicol Environ Health 1993; 38:159-70. [PMID: 8433400 DOI: 10.1080/15287399309531709] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The importance of cytosolic free calcium level ([Ca2+]i) in lymphocyte activation prompted us to investigate changes in [Ca2+]i in T cells caused by mercury compounds, which have been shown to have immunomodulatory and immunotoxic properties. Using fura-2 as fluorescent Ca2+ indicator, we found that both methyl-mercury (MeHg; 0.02-2 microM) and inorganic mercury (HgCl2; 0.01-1 microM) increased [Ca2+]i in lymphocytes from rat spleen in a concentration-dependent manner. The effect of MeHg was rapid and the increase of Ca2+ level was sustained in time, while HgCl2 caused a slow rise in [Ca2+]i. The effects of mercury compounds did not appear to be associated with alterations of membrane integrity, since there was no significant difference in the extent of MnCl2 quench between control and mercury-treated cells. However, HgCl2 (1 microM) and MeHg (2 microM) appeared to cause membrane damage at longer incubation times (15 min). When cells were incubated in Ca(2+)-free medium (in the presence of 1 mM EDTA) MeHg still increased [Ca2+]i, though to a lesser extent, while HgCl2 had no effect. Heparin, an inhibitor of inositol 1,4,5-trisphosphate-induced Ca2+ mobilization partially blocked this rise of [Ca2+]i, while carbonyl cyanide m-chlorophenylhydraxone (CCCP), an inhibitor of mitochondrial function, had a lesser effect. When added together, heparin and CCCP almost completely block the response to MeHg. These results suggest that MeHg and HgCl2 exert their effects of [Ca2+]i in different ways: MeHg-induced increases in [Ca2+]i are due to influx from outside the cells as well as to mobilization from intracellular stores, possibly the endoplasmic reticulum, and, to a minor extent, the mitochondria; on the other hand, HgCl2 causes only Ca2+ influx from the extracellular medium.
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Affiliation(s)
- X X Tan
- Department of Environmental Health, University of Washington, Seattle
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