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Sun QJ, Cai LY, Jian J, Cui YL, Huang CK, Liu SQ, Lu JL, Wang W, Zeng X, Zhong L. The Role of Bone Morphogenetic Protein 9 in Nonalcoholic Fatty Liver Disease in Mice. Front Pharmacol 2021; 11:605967. [PMID: 33603666 PMCID: PMC7884862 DOI: 10.3389/fphar.2020.605967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/10/2020] [Indexed: 12/27/2022] Open
Abstract
Background and Aims: It’s reported that bone morphogenetic protein 9 (BMP9) played an important role in lipid and glucose metabolism, but the role of BMP9 in nonalcoholic fatty liver disease (NAFLD) is unclear. Here, we evaluated the therapeutic efficacy of recombined BMP9 in NAFLD mice and investigated the potential mechanism. Methods: The effects of recombinant BMP9 on NAFLD were assessed in HFD-induced NAFLD mice. C57BL/6 mice were administrated with high-fat diet (HFD) for 12 weeks. In the last 4 weeks, mice were treated with PBS or recombined BMP9 once daily. Insulin sensitivity was evaluated by glucose tolerance test (GTT) and insulin tolerance test (ITT) at the end of the 12th week. Then NAFLD related indicators were assessed by a variety of biological methods, including histology, western blotting, real-time PCR, RNA-seq and assay for transposase-accessible chromatin using sequencing (ATAC-seq) analyses. Results: BMP9 reduced obesity, improved glucose metabolism, alleviated hepatic steatosis and decreased liver macrophages infiltration in HFD mice. RNA-seq showed that Cers6, Cidea, Fabp4 involved in lipid and glucose metabolism and Fos, Ccl2, Tlr1 involved in inflammatory response downregulated significantly after BMP9 treatment in HFD mouse liver. ATAC-seq showed that chromatin accessibility on promoters of Cers6, Fabp4, Ccl2 and Fos decreased after BMP9 treatment in HFD mouse liver. KEGG pathway analysis of dysregulated genes in RNA-seq and integration of RNA-seq and ATAC-seq showed that TNF signaling pathway and Toll-like receptor signaling pathway decreased in BMP9 treated HFD mouse liver. Conclusion: Our data revealed that BMP9 might alleviate NAFLD via improving glucose and lipid metabolism, decreasing inflammatory response and reshaping chromatin accessibility in HFD mouse liver. BMP9 downregulate genes related to lipid metabolism, glucose metabolism and inflammation expression, at least partially via decreasing promoter chromatin accessibility of Cers6, Fabp4, Fos and Tlr1. BMP9 may also reduce the expression of liver Ccl2, thereby changing the number or composition of liver macrophages, and ultimately reducing liver inflammation. The effect of BMP9 on NAFLD might be all-round, and not limit to lipid and glucose metabolism. Therefore, the underlying mechanism needs to be studied in detail further.
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Wang X, Jian J, Wang H, Liu J, Pachaury Y, Lu P, Rutherford BX, Gao X, Xu X, El-Azab A, Zhang X, Wang H. Nitride-Oxide-Metal Heterostructure with Self-Assembled Core-Shell Nanopillar Arrays: Effect of Ordering on Magneto-Optical Properties. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007222. [PMID: 33448118 DOI: 10.1002/smll.202007222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Indexed: 06/12/2023]
Abstract
Magneto-optical (MO) coupling incorporates photon-induced change of magnetic polarization that can be adopted in ultrafast switching, optical isolators, mode convertors, and optical data storage components for advanced optical integrated circuits. However, integrating plasmonic, magnetic, and dielectric properties in one single material system poses challenges since one natural material can hardly possess all these functionalities. Here, co-deposition of a three-phase heterostructure composed of a durable conductive nitride matrix with embedded core-shell vertically aligned nanopillars, is demonstrated. The unique coupling between ferromagnetic NiO core and atomically sharp plasmonic Au shell enables strong MO activity out-of-plane at room temperature. Further, a template growth process is applied, which significantly enhances the ordering of the nanopillar array. The ordered nanostructure offers two schemes of spin polarization which result in stronger antisymmetry of Kerr rotation. The presented complex hybrid metamaterial platform with strong magnetic and optical anisotropies is promising for tunable and modulated all-optical-based nanodevices.
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Chen Y, Zeng H, Ma P, Chen G, Jian J, Sun X, Li X, Wang H, Yin W, Jia Q, Zou G. Overcoming the Anisotropic Growth Limitations of Free‐Standing Single‐Crystal Halide Perovskite Films. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Luo J, Zhu X, Jian J, Chen XU, Yin K. Cardiovascular disease in patients with COVID-19: evidence from cardiovascular pathology to treatment. Acta Biochim Biophys Sin (Shanghai) 2021; 53:273-282. [PMID: 33428706 PMCID: PMC7929476 DOI: 10.1093/abbs/gmaa176] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Indexed: 01/08/2023] Open
Abstract
The coronavirus disease-2019 (COVID-19) caused by the novel coronavirus severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has rapidly developed into a global pneumonia pandemic. Cardiovascular disease is the major comorbidity of COVID-19 patients and is closely related to the severity of COVID-19. SARS-CoV-2 infection can directly or indirectly cause a series of cardiac complications, including acute myocardial injury and myocarditis, heart failure and cardiac arrest, arrhythmia, acute myocardial infarction, cardiogenic shock, Takotsubo cardiomyopathy, and coagulation abnormalities. Intensive research on the SARS-CoV-2-associated cardiovascular complications is urgently needed to elucidate its exact mechanism and to identify potential drug targets, which will help to formulate effective prevention and treatment strategies. Hence, this review will summarize recent progress regarding the effects of COVID-19 on the cardiovascular system and describe the underlying mechanism of cardiovascular injury caused by SARS-CoV-2.
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Chen Y, Zeng H, Ma P, Chen G, Jian J, Sun X, Li X, Wang H, Yin W, Jia Q, Zou G. Overcoming the Anisotropic Growth Limitations of Free‐Standing Single‐Crystal Halide Perovskite Films. Angew Chem Int Ed Engl 2020; 60:2629-2636. [PMID: 33047467 DOI: 10.1002/anie.202011853] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/02/2020] [Indexed: 01/27/2023]
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Wang H, Huang J, Sun X, Jian J, Liu J, Wang H. Effective doping control in Sm-doped BiFeO 3 thin films via deposition temperature. RSC Adv 2020; 10:40229-40233. [PMID: 35520854 PMCID: PMC9057518 DOI: 10.1039/d0ra06775j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/26/2020] [Indexed: 11/21/2022] Open
Abstract
Sm-doped BiFeO3 (Bi0.85Sm0.15FeO3, or BSFO) thin films were fabricated on (001) SrTiO3(STO) substrates by pulsed laser deposition (PLD) over a range of deposition temperatures (600 °C, 640 °C and 670 °C). Detailed analysis of their microstructure via X-ray diffraction (XRD) and transmission electron microscopy (TEM) shows the deposition temperature dependence of ferroelectric (FE) and antiferroelectric (AFE) phase formation in BSFO. The Sm dopants are clearly detected by high-resolution scanning transmission electron microscopy (HR-STEM) and prove effective in controlling the ferroelectric properties of BSFO. The BSFO (T dep = 670 °C) presents larger remnant polarization (Pr) than the other two BSFO (T dep = 600 °C, 640 °C) and pure BiFeO3 (BFO) thin films. This study paves a simple way for enhancing the ferroelectric properties of BSFO via deposition temperature and further promoting BFO practical applications.
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Jian J, Poater J, White PB, McKenzie CJ, Bickelhaupt FM, Mecinović J. Probing Halogen-π versus CH-π Interactions in Molecular Balance. Org Lett 2020; 22:7870-7873. [PMID: 32991183 DOI: 10.1021/acs.orglett.0c02773] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Molecular balances based on the dibenzobicyclo[3.2.2]nonane template enable probing of the competition between halogen-π and CH-π interactions. Structural, NMR spectroscopic, and computational analyses revealed that the π system can favorably interact both with C-X or C-H functionalities, depending on the size of the functional group.
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Jian J, Zhang P, Li Y, Liu B, Zhang Y, Zhang L, Shao XM, Zhuang J, Xiao D. Reprogramming of miR-181a/DNA methylation patterns contribute to the maternal nicotine exposure-induced fetal programming of cardiac ischemia-sensitive phenotype in postnatal life. Theranostics 2020; 10:11820-11836. [PMID: 33052248 PMCID: PMC7546014 DOI: 10.7150/thno.48297] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
Background: E-cigarette and other novel electronic nicotine delivery systems (ENDS) have recently entered the market at a rapid pace. The community desperately needs answers about the health effects of ENDS. The present study tested the hypothesis that perinatal nicotine exposure (PNE) causes a gender-dependent increase in vulnerability of the heart to ischemia-reperfusion (I/R) injury and cardiac dysfunction in male rat offspring via reprogramming of the miRNA-181a (miR-181a)-mediated signaling pathway and that miR-181a antisense could rescue this phenotype. Methods: Nicotine or saline was administered to pregnant rats via subcutaneous osmotic minipumps from gestational day 4 until postnatal day 10. Cardiac function and molecular biological experiments were conducted in ~3- month-old offspring. Results: PNE enhanced I/R-induced cardiac dysfunction and infarction in adult male but not in female offspring, which was associated with miR-181a over-expression in left ventricle tissues. In addition, PNE enhanced offspring cardiac angiotensin receptor (ATR) expressions via specific CpG hypomethylation of AT1R/AT2R promoter. Furthermore, PNE attenuated cardiac lncRNA H19 levels, but up-regulated cardiac TGF-β/Smads family proteins and consequently up-regulated autophagy-related protein (Atg-5, beclin-1, LC3 II, p62) expression in the male offspring. Of importance, treatment with miR-181a antisense eliminated the PNE's effect on miR-181a expression/H19 levels and reversed PNE-mediated I/R-induced cardiac infarction and dysfunction in male offspring. Furthermore, miR-181a antisense also attenuated the effect of PNE on AT1R/AT2R/TGF-β/Smads/autophagy-related biomarkers in the male offspring. Conclusion: Our data suggest that PNE could induce a reprogramming of cardiac miR-181a expression/DNA methylation pattern, which epigenetically modulates ATR/TGF-β/autophagy signaling pathways, leading to gender-dependent development of ischemia-sensitive phenotype in postnatal life. Furthermore, miR-181a could severe as a potential therapeutic target for rescuing this phenotype.
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He Z, Jian J, Misra S, Gao X, Wang X, Qi Z, Yang B, Zhang D, Zhang X, Wang H. Bidirectional tuning of phase transition properties in Pt : VO 2 nanocomposite thin films. NANOSCALE 2020; 12:17886-17894. [PMID: 32840545 DOI: 10.1039/d0nr04008h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A phase transition material, VO2, with a semiconductor-to-metal transition (SMT) near 341 K (68 °C) has attracted significant research interest because of drastic changes in its electrical resistivity and optical dielectric properties. To address its application needs at specific temperatures, tunable SMT temperatures are highly desired. In this work, effective transition temperature (Tc) tuning of VO2 has been demonstrated via a novel Pt : VO2 nanocomposite design, i.e., uniform Pt nanoparticles (NPs) embedded in the VO2 matrix. Interestingly, a bidirectional tuning has been achieved, i.e., the transition temperature can be systematically tuned to as low as 329.16 K or as high as 360.74 K, with the average diameter of Pt NPs increasing from 1.56 to 4.26 nm. Optical properties, including transmittance (T%) and dielectric permittivity (ε') were all effectively tuned accordingly. All Pt : VO2 nanocomposite thin films maintain reasonable SMT properties, i.e. sharp phase transition and narrow width of thermal hysteresis. The bidirectional Tc tuning is attributed to two factors: the reconstruction of the band structure at the Pt : VO2 interface and the change of the Pt : VO2 phase boundary density. This demonstration sheds light on phase transition tuning of VO2 at both room temperature and high temperature, which provides a promising approach for VO2-based novel electronics and photonics operating under specific temperatures.
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Wang X, Wang H, Jian J, Rutherford BX, Gao X, Xu X, Zhang X, Wang H. Metal-Free Oxide-Nitride Heterostructure as a Tunable Hyperbolic Metamaterial Platform. NANO LETTERS 2020; 20:6614-6622. [PMID: 32787175 DOI: 10.1021/acs.nanolett.0c02440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal-free plasmonic metamaterials with wide-range tunable optical properties are highly desired for various components in future integrated optical devices. Designing a ceramic-ceramic hybrid metamaterial has been theoretically proposed as a solution to this critical optical material demand. However, the processing of such all-ceramic metamaterials is challenging due to difficulties in integrating two very dissimilar ceramic phases as one hybrid system. In this work, an oxide-nitride hybrid metamaterial combining two highly dissimilar ceramic phases, i.e., semiconducting weak ferromagnetic NiO nanorods and conductive plasmonic TiN matrix, has been successfully integrated as a unique vertically aligned nanocomposite form. Highly anisotropic optical properties such as hyperbolic dispersions and strong magneto-optical coupling have been demonstrated under room temperature. The novel functionalities presented show the strong potentials of this new ceramic-ceramic hybrid thin film platform and its future applications in next-generation nanophotonics and magneto-optical integrated devices without the lossy metallic components.
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Gao X, Zhang D, Wang X, Jian J, He Z, Dou H, Wang H. Vertically aligned nanocomposite (BaTiO 3) 0.8 : (La 0.7Sr 0.3MnO 3) 0.2 thin films with anisotropic multifunctionalities. NANOSCALE ADVANCES 2020; 2:3276-3283. [PMID: 36134270 PMCID: PMC9419260 DOI: 10.1039/d0na00232a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
A new two-phase BaTiO3 : La0.7Sr0.3MnO3 nanocomposite system with a molar ratio of 8 : 2 has been grown on single crystal SrTiO3 (001) substrates using a one-step pulsed laser deposition technique. Vertically aligned nanocomposite thin films with ultra-thin La0.7Sr0.3MnO3 pillars embedded in the BaTiO3 matrix have been obtained and the geometry of the pillars varies with deposition frequency. The room temperature multiferroic properties, including ferromagnetism and ferroelectricity, have been demonstrated. Anisotropic ferromagnetism and dielectric constants have been observed, which can be tuned by deposition frequencies. The tunable anisotropic optical properties originated from the conducting pillars in the dielectric matrix structure, which cause different electron transport paths. In addition, tunable band gaps have been discovered in the nanocomposites. This multiferroic and anisotropic system has shown its great potentials towards multiferroics and non-linear optics.
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Lin L, Jian J, Song CY, Chen F, Ding K, Xie WF, Hu PF. SHP-1 ameliorates nonalcoholic steatohepatitis by inhibiting proinflammatory cytokine production. FEBS Lett 2020; 594:2965-2974. [PMID: 32619269 DOI: 10.1002/1873-3468.13879] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/20/2022]
Abstract
Inflammation is the main contributor for the pathogenesis of nonalcoholic steatohepatitis (NASH). Src homology region 2 domain-containing phosphatase 1 (SHP-1, also known as PTPN6) is regarded as a negative regulator of inflammation, but its role in NASH remains unknown. Here, hepatocyte-specific Ptpn6 knockout mice (Ptpn6HKO ) and adenovirus vector-mediated ectopic expression of SHP-1 (AdSHP1) were used to evaluate the role of SHP-1 in a methionine- and choline-deficient diet-induced NASH model. Compared with the control littermates, Ptpn6HKO mice show exacerbated hepatic steatosis, inflammation, and fibrosis. Additionally, administration of AdSHP1 significantly ameliorates steatohepatitis and inhibits the expression of proinflammatory cytokines, including transforming growth factor-β, interleukin-6, and tumor necrosis factor-α. Our data indicate that SHP-1 could be a potential therapeutic target for NASH.
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Li F, Jian J, Xu Y, Liu W, Ye Q, Feng F, Li C, Jia L, Wang H. Surface defect passivation of Ta3N5 photoanode via pyridine grafting for enhanced photoelectrochemical performance. J Chem Phys 2020; 153:024705. [PMID: 32668911 DOI: 10.1063/5.0012873] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Guo J, Tong B, Jian J, Chen J, Zhou T, Shang X, Cheng J. Enhanced transduction coefficient in piezoelectric PZT ceramics by mixing powders calcined at different temperatures. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.02.064] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jian J, Poater J, Hammink R, Tinnemans P, McKenzie CJ, Bickelhaupt FM, Mecinović J. Through-Space Polar-π Interactions in 2,6-Diarylthiophenols. Chemphyschem 2020; 21:1080. [PMID: 32496661 DOI: 10.1002/cphc.202000414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The front cover artwork is provided by Marijn Maas from the group of Prof. Jasmin Mecinović (University of Southern Denmark). The image shows the stabilization of thiols by aromatic rings, as a result of energetically favorable SH-π interactions in a designed small molecule and in proteins. Read the full text of the Article at 10.1002/cphc.202000132.
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Jian J, Poater J, Hammink R, Tinnemans P, McKenzie CJ, Bickelhaupt FM, Mecinović J. Front Cover: Through‐Space Polar‐π Interactions in 2,6‐Diarylthiophenols (ChemPhysChem 11/2020). Chemphyschem 2020. [DOI: 10.1002/cphc.202000415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jian J, Poater J, Hammink R, Tinnemans P, McKenzie CJ, Bickelhaupt FM, Mecinović J. Through-Space Polar-π Interactions in 2,6-Diarylthiophenols. Chemphyschem 2020; 21:1092-1100. [PMID: 32253802 PMCID: PMC7318691 DOI: 10.1002/cphc.202000132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/22/2020] [Indexed: 02/05/2023]
Abstract
Molecular recognition between polar groups and aromatic molecules is fundamentally important to rational drug design. Although it has been well established that many polar functionalities interact with electron-rich aromatic residues through energetically favorable polar-π interactions, there is a limited understanding of the association between thiols and aromatic systems. Herein we report physical-organic chemistry studies on 2,6-diarylthiophenols that possess the central thiophenol ring and two flanking aromatic rings with tunable electronic properties caused by substituents at distant para position. Hammett analysis revealed that pKa values and proton affinities correlate well with Hammett sigma values of substituents. Additional energy decomposition analysis supported the conclusion that both through-space SH-π interactions and S- -π interactions contribute to intramolecular stabilization of 2,6-diarylthiophenols.
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Jian J, Li S, Liu LZ, Zhen L, Yao L, Gan LH, Huang YQ, Fang N. XPD inhibits cell growth and invasion and enhances chemosensitivity in esophageal squamous cell carcinoma by regulating the PI3K/AKT signaling pathway. Int J Mol Med 2020; 46:201-210. [PMID: 32377720 PMCID: PMC7255471 DOI: 10.3892/ijmm.2020.4593] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/13/2020] [Indexed: 12/24/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a lethal disease due to its high aggressiveness. The aim of the present study was to investigate the role of xeroderma pigmentosum complementation group D (XPD) in the growth and invasion of ESCC and to elucidate the potential underlying molecular mechanisms. Western blot analysis and RT-qPCR were used to detect the expression level of XPD in ESCC tissue samples and adjacent normal esophageal tissue samples. The pEGFP-N2/XPD plasmid was transfected into human ESCC cell lines (EC9706 and EC109). The proliferation, apoptosis, migration and invasion of EC9706 or EC109 cells were assessed following transfection with the XPD overexpression plasmid. The chemosensitivity of EC9706 or EC109 cells to cisplatin or fluorouracil was evaluated by CCK-8 assay. The expression levels of phosphoinositide 3-kinase (PI3K)/AKT, nuclear factor (NF)-κB, Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) and mitogen-activated protein kinase (MAPK) signaling pathway-related genes were detected by RT-qPCR and western blot analysis. The results demonstrated that the expression level of XPD was markedly lower in ESCC tissue samples than in adjacent normal esophageal tissue samples. The pEGFP-N2/XPD plasmid was successfully transfected into EC9706 or EC109 cells, inducing XPD overexpression. A High XPD expression markedly suppressed cell proliferation, migration and invasion, and increased the apoptotic rate of EC9706 and EC109 cells. Furthermore, the overexpression of XPD significantly increased the chemosensitivity of EC9706 and EC109 cells to cisplatin or fluorouracil. Following XPD overexpression, the expression levels of PI3K, p-AKT, c-Myc, Cyclin D1, Bcl-2, vascular endothelial growth factor (VEGF) and matrix metalloproteinase (MMP)-9 were markedly downregulated, while the expression level of p21 was markedly upregulated. On the whole, the findings of the present study demonstrate that XPD inhibits the growth and invasion of EC9706 and EC109 cells, whilst also enhancing the chemosensitivity of EC9706 and EC109 cells to cisplatin or fluorouracil by regulating the PI3K/AKT signaling pathway. XPD may thus be an underlying target for ESCC treatment and drug resistance.
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Yun C, Choi EM, Li W, Sun X, Maity T, Wu R, Jian J, Xue S, Cho S, Wang H, MacManus-Driscoll JL. Achieving ferromagnetic insulating properties in La 0.9Ba 0.1MnO 3 thin films through nanoengineering. NANOSCALE 2020; 12:9255-9265. [PMID: 32310248 DOI: 10.1039/c9nr08373a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Strongly correlated manganites have a wide range of fascinating magnetic and electronic properties, one example being the coexistence of ferromagnetic and insulating properties in lightly-doped bulk. However, it is difficult to translate bulk properties to films. Here, this problem is overcome by thin film nanoengineering of the test case system, La0.9Ba0.1MnO3 (LBMO). This was achieved by using vertically aligned nanocomposite (VAN) thin films of LBMO + CeO2 in which CeO2 nanocolumns form embedded in a LBMO matrix. The CeO2 columns produce uniform tensile straining of the LBMO. Also light Ce doping of intrinsic cation vacancies in the LBMO occurs. Together, these factors strongly reduced the double exchange coupling and metallicity. Hence, while standard plain reference films showed an insulator-to-metal transition at >200 K, originating from defects and complex structural relaxation, the VAN LBMO films exhibited ferromagnetic insulating properties (while maintaining a Tc of 188 K). This is the first time that a combined strain + doping method is used in a VAN system to realise exemplary properties which cannot be realised in plain films. This work represents an important step in engineering high performance spintronic and multiferroic thin film devices.
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Xu R, Min L, Qi Z, Zhang X, Jian J, Ji Y, Qian F, Fan J, Kan C, Wang H, Tian W, Li L, Li W, Yang H. Perovskite Transparent Conducting Oxide for the Design of a Transparent, Flexible, and Self-Powered Perovskite Photodetector. ACS APPLIED MATERIALS & INTERFACES 2020; 12:16462-16468. [PMID: 32192331 DOI: 10.1021/acsami.0c01298] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Transparent and flexible electronic devices are highly desired to meet the great demand for next-generation devices that are lightweight, flexible, and portable. Transparent conducting oxides (TCOs), such as indium-tin oxide, serve as fundamental components for the design of transparent and flexible electronic devices. However, indium is rare and expensive. Herein, we report the fabrication of low-cost perovskite SrVO3 TCO films on transparent and flexible mica substrates and further demonstrate their utilization as a TCO electrode for building a transparent, flexible, and self-powered perovskite photodetector. Superior stable optical transparency and electrical conductivity are retained in SrVO3 after bending up to 105 cycles. Without an external power source, the constructed all-perovskite photodetector exhibits a high responsivity (42.5 mA W-1), fast response time (3.09/1.23 ms), and an excellent flexibility and bending stability after dozens of cycles of bending at an extreme 90° bending angle. Our results demonstrate that low-cost and structure-compatible transition metal-based perovskite oxides, such as SrVO3, as TCO electrodes have huge potential for building high-performance transparent, flexible, and portable smart electronics.
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Jian J, Zhang P, Li Y, Liu B, Xiao D. Perinatal nicotine exposure alters miR‐181a‐mediated signaling leading to gender‐dependent development of cardiac ischemia‐sensitive phenotype in adult male offspring. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.04710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Gao X, Li L, Zhang D, Wang X, Jian J, He Z, Wang H. Novel layered Bi 3MoM TO 9 (M T = Mn, Fe, Co and Ni) thin films with tunable multifunctionalities. NANOSCALE 2020; 12:5914-5921. [PMID: 32107523 DOI: 10.1039/d0nr00083c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bi3MoMTO9 (BMoMTO; MT, transition metals of Mn, Fe, Co and Ni) thin films with a layered supercell structure have been deposited on LaAlO3 (001) substrates by pulsed laser deposition. Microstructural analysis suggests that pillar-like domains with higher transition metal concentration (e.g., Mn, Fe, Co and Ni) are embedded in the Mo-rich matrix with layered supercell structures. The layered supercell structure of the BMoMTO thin films accounts for the anisotropic multifunctionalities such as the magnetic easy axis along the in-plane direction, and the anisotropic optical properties. Ferroelectricity and ferromagnetism have been demonstrated in the thin films at room temperature, which confirms the multiferroic nature of the system. By varying the transition metal MT in the film, the band gaps of the BMoMTO films can be effectively tuned from 2.44 eV to 2.82 eV, while the out-of-plane dielectric constant of the thin films also varies. The newly discovered layered nanocomposite systems present their potential in ferroelectrics, multiferroics and non-linear optics.
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Zhang C, Gan X, Liang R, Jian J. Exosomes Derived From Epigallocatechin Gallate-Treated Cardiomyocytes Attenuated Acute Myocardial Infarction by Modulating MicroRNA-30a. Front Pharmacol 2020; 11:126. [PMID: 32161548 PMCID: PMC7054242 DOI: 10.3389/fphar.2020.00126] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 01/29/2020] [Indexed: 12/15/2022] Open
Abstract
Background Ischemia-derived exosomes can restrict excessive autophagy by transferring microRNA-30a (miR30a) to cells. Reports have confirmed that epigallocatechin gallate (EGCG) alleviates acute myocardial infarction (AMI) by regulating autophagy; however, research evaluating the communication with cardiomyocytes and exosomes is lacking. This study aimed to explore whether exosomes derived from EGCG-treated cardiomyocytes mitigated AMI by adjusting miR30a to inactivate apoptosis and autophagy. Methods Exosomes were extracted from cardiomyocytes, cultured either in control or AMI condition, with or without EGCG pretreatment. The exosome characteristics were analyzed by nanoparticle tracking analyses and transmission electron microscopy. The change in miR30a in cells and exosomes was demonstrated by qRT-PCR. H9c2 or stable miR30a knockdown (miR30aKD) cell lines were incubated with exosomes derived from EGCG-treated cardiomyocytes in vitro or in vivo. The effect of EGCG and exosomes on I/R-induced cardiomyocyte apoptosis and autophagy was assessed. Results EGCG improved the activity of cardiomyocytes, and increased average diameter, concentration, miR30a mRNA level, and specific protein expression in AMI-derived exosomes produced by cardiomyocytes. Moreover, the coincubation of AMI cells with EGCG or exosomes derived from EGCG-treated cardiomyocytes attenuated cardiomyocyte apoptosis and autophagy. Conclusions The findings showed that EGCG upregulates miR30a, which was efficiently transferred via exosomes between cardiomyocytes, thereby contributing to the suppression of apoptosis and autophagy. By focusing on the cardiomyocyte microenvironment, we identified a new target of EGCG alleviating AMI by regulating apoptosis and autophagy.
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Misra S, Li L, Gao X, Jian J, Qi Z, Zemlyanov D, Wang H. Tunable physical properties in BiAl 1-x Mn x O 3 thin films with novel layered supercell structures. NANOSCALE ADVANCES 2020; 2:315-322. [PMID: 36134002 PMCID: PMC9417154 DOI: 10.1039/c9na00566h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 11/22/2019] [Indexed: 06/11/2023]
Abstract
Morphological control in oxide nanocomposites presents enormous opportunities for tailoring the physical properties. Here, we demonstrate the strong tunability of the magnetic and optical properties of Bi-based layered supercell (LSC) multiferroic structures, i.e., BiAl1-x Mn x O3, by varying the Al : Mn molar ratio. The microstructure of the LSC structure evolves from a supercell structure to Al-rich pillars in the supercell structure as the Al molar ratio increases. The LSC structures present excellent multiferroic properties with preferred in-plane magnetic anisotropy, a tunable band gap and anisotropic dielectric permittivity, all attributed to the microstructure evolution and their anisotropic microstructure. Three different strain relaxation mechanisms are identified that are active during thin film growth. This study provides opportunities for microstructure and physical property tuning which can also be explored in other Bi-based LSC materials with tailorable multiferroic and optical properties.
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Jian J, Zhan N, Su J. A novel superiority and inferiority ranking method for engineering investment selection under interval-valued intuitionistic fuzzy environment. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2019. [DOI: 10.3233/jifs-190001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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