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Lin X, Yang S, Zhou C, Ao C, Sun D. The NEDD8-activating enzyme E1 UBA3 orchestrates the immunosuppressive microenvironment in lung adenocarcinoma via the NF-кB pathway. Med Oncol 2023; 40:286. [PMID: 37656220 PMCID: PMC10474176 DOI: 10.1007/s12032-023-02162-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
Immunosuppressive cells play important roles in generating an immunosuppressive tumor microenvironment and facilitating tumor immune escape. However, the molecular mechanisms underlying their immunosuppressive effects remain unclear. UBA3, the sole catalytic subunit of the neural precursor cell expressed developmentally down-regulated protein 8 (NEDD8)-activating enzyme E1, is highly expressed in various human malignancies, along with an activated neddylation pathway. In this study, we investigated the relationships between the UBA3-dependent neddylation pathway and the infiltration of several immunosuppressive cell populations in lung adenocarcinoma (LUAD). We explored the regulatory mechanisms of UBA3 in LUAD cells by using mRNA sequencing and functional enrichment analyses. Correlations between neddylation and immune infiltrates were assessed by Western blotting, real-time PCR, and analyses of public databases. We found elevated levels of UBA3 expression in LUAD tissues compared to adjacent normal tissues. Blocking UBA3 and the neddylation pathway promoted the accumulation of the phosphorylated nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor (p-IκBα), inhibiting the gene expression of tumor cell-derived cytokines such as C-C motif chemokine ligand (CCL) 2, C-X-C motif ligand (CXCL)1, CXCL2, colony-stimulating factor (CSF) 1, CSF2 interleukin (IL)-6, and IL-1B. Moreover, the overexpression of UBA3 in LUAD cells was associated with the secretion of these cytokines, and the recruitment and infiltration of immunosuppressive cells including tumor-associated macrophages (TAMs), plasmacytoid dendritic cells (pDCs), Th2 cells and T-regulatory cells (Tregs). This could facilitate the tumor immune escape and malignant progression of LUAD. Our findings provide new insights into the role of UBA3 in establishing an immunosuppressive tumor microenvironment by modulating nuclear factor kappa B (NF-кB) signaling and the neddylation pathway.
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Affiliation(s)
- Xiongzhi Lin
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
- Graduate School of Medicine, Hebei North University, Zhangjiakou, Hebei, China
| | - Shuhan Yang
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
- Medical School, Taizhou University, Taizhou, Zhejiang, China
| | - Caichuan Zhou
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
- Medical School, Taizhou University, Taizhou, Zhejiang, China
| | - Chengcheng Ao
- Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, Zhejiang, China
- Medical School, Taizhou University, Taizhou, Zhejiang, China
| | - Dongsheng Sun
- Medical School, Taizhou University, Taizhou, Zhejiang, China.
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2
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Li Z, Ni H, Wang P, Liu Z, Ao C, Zhang L, Wang Y. Evolution hydrothermal aging mechanism for Ag/CeO 2 catalysts in regeneration of catalytic diesel particulate filter with DFT calculation. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-27626-6. [PMID: 37231133 DOI: 10.1007/s11356-023-27626-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023]
Abstract
In order to avoid the high cost of existing precious metal catalyst like Pt, Ag/CeO2 was the most promising catalysts for mobile source soot emission control technologies, but there was a clear trade-off between hydrothermal aging resistance and catalytic oxidation performance hindered the application of this catalyst. In order to reveal the hydrothermal aging mechanism of Ag/CeO2 catalysts, the TGA (thermogravimetric analysis) experiments were investigated to reveal the mechanism of Ag modification on catalytic activity of CeO2 catalyst between fresh and hydrothermal aging and were also characterized with the related characterization experiments to in-depth research the lattice morphology and valence changes. The degradation mechanism of Ag/CeO2 catalysts in vapor with high-temperature was also explained and demonstrated based on density functional and molecular thermodynamics theories. The experimental and simulation data showed that the catalytic activity of soot combustion within Ag/CeO2 decreased more significantly after hydrothermal aging than CeO2 due to the less agglomerated, which caused by the decreased in OII/OI and Ce3+/Ce4+ compared with CeO2. As shown in density function theory (DFT) calculation, the decreased surface energy and the increased oxygen vacancy formation energy of the low Mille index surface after Ag modification led to the instability structure and the high catalytic activity. Ag modification also increased the adsorption energy and Gibbs free energy of H2O on the low Miller index surface compared to CeO2, indicating that the desorption temperature of H2O molecules in (1 1 0) and (1 0 0) was higher than (1 1 1) in CeO2 and Ag/CeO2, which led to the migration of (1 1 1) crystal surfaces to (1 1 0) and (1 0 0) in the vapor environment. These conclusions can provide a valuable addition to the regenerative application of Ce-based catalysts in diesel exhaust aftertreatment system the aerial pollution.
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Affiliation(s)
- Zonglin Li
- State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation, Chinese Research Academy of Environmental Science, Beijing, 100012, China
- School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Hong Ni
- State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation, Chinese Research Academy of Environmental Science, Beijing, 100012, China.
| | - Pan Wang
- School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Zhengtao Liu
- State Key Laboratory of Environmental Criteria and Riskj Assessment, State Environmental Protection Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Chengcheng Ao
- School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Lidong Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230026, China
| | - Yunjing Wang
- State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation, Chinese Research Academy of Environmental Science, Beijing, 100012, China
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He C, Ao C, Ruan S, Xu K, Zhang L. Catalytic combustion of propane over Zr-modified Co3O4 catalysts: An experimental and theoretical study. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128617] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Catalytic combustion technology is an exciting prospect for the removal of pollutants, especially in the field of transportation. Applying zeolites in fuel combustion has gained increasing importance in heterogeneous catalysis arising from their properties such as economical practicability and high activity. However, compared with the extensively investigated homogeneous combustion, few studies have been reported to explore the catalytic combustion of large-molecule fuels, especially for the catalytic combustion of biodiesel surrogate fuels. The purpose of this feature article is to describe the catalytic combustion of methyl butanoate (one of the biodiesel surrogate fuels) over unmodified HZSM-5 zeolites with a particular focus on the catalytic reaction mechanism. Experiments and theoretical calculations were considered here to help explain the proposed catalytic mechanism. This paper can provide new insights into the catalytic mechanism of biodiesel fuels that will guide the improvement of combustion efficiency in internal combustion engines and in the control of pollutant emissions.
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Affiliation(s)
- Yitong Zhai
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China.
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Liu X, Ao C, Shen X, Wang L, Wang S, Cao L, Zhang W, Dong J, Bao J, Ding T, Zhang L, Yao T. Dynamic Surface Reconstruction of Single-Atom Bimetallic Alloy under Operando Electrochemical Conditions. Nano Lett 2020; 20:8319-8325. [PMID: 33090809 DOI: 10.1021/acs.nanolett.0c03475] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The atomic-level understanding of the dynamic evolution of the surface structure of bimetallic nanoparticles under industrially relevant operando conditions provides a key guide for improving their catalytic performance. Here, we exploit operando X-ray absorption fine structure spectroscopy to determine the dynamic surface reconstruction of Cu/Au bimetallic alloy where single-atom Cu was embedded on the Au nanoparticle, under electrocatalytic conditions. We identify the migration of isolated Cu atoms from the vertex position of the Au nanoparticle to the stable (100) plane of the Au first atom layer, when the reduction potential is applied. Density functional theory calculations reveal that the surface atom migration would significantly modulate the Au electronic structure, thus serving as the real active site for the catalytic performance. These findings demonstrate the real structural change under electrochemical conditions and provide guidance for the rational design of high-activity bimetallic nanocatalysts.
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Affiliation(s)
- Xiaokang Liu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Chengcheng Ao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Xinyi Shen
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Lan Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
- School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Sicong Wang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Linlin Cao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Wei Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Jingjing Dong
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Jun Bao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Tao Ding
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Lidong Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Tao Yao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
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Wang J, Xu H, Ao C, Pan X, Luo X, Wei S, Li Z, Zhang L, Xu ZL, Li Y. Au@Pt Nanotubes within CoZn-Based Metal-Organic Framework for Highly Efficient Semi-hydrogenation of Acetylene. iScience 2020; 23:101233. [PMID: 32629604 PMCID: PMC7322249 DOI: 10.1016/j.isci.2020.101233] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 04/30/2020] [Accepted: 06/01/2020] [Indexed: 01/16/2023] Open
Abstract
Designing nanocatalysts with synergetic functional component is a desirable strategy to achieve both high activity and selectivity for industrially important hydrogenation reaction. Herein, we fabricated a core-shell hollow Au@Pt NTs@ZIFs (ZIF, zeolitic imidazolate framework; NT, nanotube) nanocomposite as highly efficient catalysts for semi-hydrogenation of acetylene. Hollow Au@Pt NTs were synthesized by epitaxial growth of Pt shell on Au nanorods followed with oxidative etching of Au@Pt nanorod. The obtained hollow Au@Pt NTs were then homogeneously encapsulated within ZIFs through in situ crystallization. By combining the high activity of bimetallic nanotube and gas enrichment property of porous metal-organic frameworks, hollow Au@Pt NT@ZIF catalyst was demonstrated to show superior catalytic performance for the semi-hydrogenation of acetylene, in terms of both selectivity and activity, over those of monometallic Au and solid bimetal nanorod@ZIF counterparts. This catalysts design idea is believed to be inspirable for the development of highly efficient nanocomposite catalysts. Core-shell nanocomposite catalysts M@ZIFs are assembled The M NRs and NTs are well dispersed and fully encapsulated in ZIF-67 and ZIF-8 Au@PtNT enhance the selectivity and conversion for the semi-hydrogenation of acetylene DFT calculations show Au@PtNT has lower energy barrier compared with Au@PtNR
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Affiliation(s)
- Jiajia Wang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Haitao Xu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Chengcheng Ao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China
| | - Xinbo Pan
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xikuo Luo
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - ShengJie Wei
- Department of Chemistry, Tsinghua University, 100084 Beijing, China
| | - Zhi Li
- Department of Chemistry, Tsinghua University, 100084 Beijing, China.
| | - Lidong Zhang
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, P. R. China.
| | - Zhen-Liang Xu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, 100084 Beijing, China
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7
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Ao C, Feng B, Qian S, Wang L, Zhao W, Zhai Y, Zhang L. Theoretical study of transition metals supported on g-C3N4 as electrochemical catalysts for CO2 reduction to CH3OH and CH4. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.11.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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8
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Wang L, Ao C, Zhai Y, Feng B, Duan J, Qian S, Zhao W, Zhang L, Liu F. Highly active and stable Co3O4 catalyst for the Low-temperature oxidative dehydrogenation of propane. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107725] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Liu W, Ao C, Ding H, Khas E. PSXIV-40 Effects of Different Diets on Fatty Acid Composition and Lipid Stability of Intramuscular Fat in DorperxThin-Tailed Han Crossbred Mutton Lambs. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- W Liu
- College of animal science, Inner Mongolia Agricultural University,Hohhot, Nei Mongol,China (People’s Republic)
| | - C Ao
- College of animal science, Inner Mongolia Agricultural University,Hohhot, Nei Mongol,China (People’s Republic)
| | - H Ding
- College of animal science, Inner Mongolia Agricultural University,Hohhot, Nei Mongol,China (People’s Republic)
| | - E Khas
- College of animal science, Inner Mongolia Agricultural University,Hohhot, Nei Mongol,China (People’s Republic)
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10
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Ning LT, Dong GZ, Ao C, Zhang DG, Erdene K, Zhang FQ, Wen J, Zhang TL. Effects of continuous low dose infusion of lipopolysaccharide on inflammatory responses, milk production and milk quality in dairy cows. J Anim Physiol Anim Nutr (Berl) 2017; 102:e262-e269. [PMID: 28503821 DOI: 10.1111/jpn.12737] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 04/06/2017] [Indexed: 11/30/2022]
Abstract
The objective of this study was to evaluate the effects of continuous low dose infusion of lipopolysaccharide (LPS) on inflammatory responses and milk production and quality in lactating dairy cows. Eight Holstein cows were assigned to two treatments in a cross-over experimental design. Cows were infused intravenously either with saline solution or with saline solution containing LPS from Escherichia coli O111:B4 at a dose of 0.01 μg LPS/kg body weight for approximately 6 hr each day during a seven-day trial. The clinical symptoms and milk production performance were observed. Milk samples were analysed for conventional components, fatty acids and amino acids. And jugular vein and mammary vein plasma samples were analysed for concentrations of cytokines and acute phase proteins. LPS infusion decreased feed intake and milk yield. An increase in body temperature was observed after LPS infusion. LPS infusion also increased plasma concentrations of interleukin-1β, serum amyloid A, LPS-binding protein, C-reactive protein and haptoglobin. LPS infusion decreased the contents of some fatty acids, such as C17:1, C18:0, C18:1n9 (trans) and C18:2n6 (trans), and most amino acids except for methionine, threonine, histidine, cysteine, tyrosine and proline in the milk. The results indicated that a continued low dose infusion of LPS can induce an inflammatory response, decrease milk production and reduce milk quality.
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Affiliation(s)
- L T Ning
- Key Laboratory of Grass and Herbivores of Chongqing, College of Animal Science and Technology, Southwest University, Chongqing, China
| | - G Z Dong
- Key Laboratory of Grass and Herbivores of Chongqing, College of Animal Science and Technology, Southwest University, Chongqing, China
| | - C Ao
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - D G Zhang
- Key Laboratory of Grass and Herbivores of Chongqing, College of Animal Science and Technology, Southwest University, Chongqing, China
| | - K Erdene
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - F Q Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - J Wen
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - T L Zhang
- College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
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Huang J, Du P, Ao C, Ho M, Lei M, Zhao D, Wang Z. Multivariate analysis for stormwater quality characteristics identification from different urban surface types in macau. Bull Environ Contam Toxicol 2007; 79:650-654. [PMID: 17940712 DOI: 10.1007/s00128-007-9297-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2007] [Accepted: 10/03/2007] [Indexed: 05/25/2023]
Abstract
Statistical analysis of stormwater runoff data enables general identification of runoff characteristics. Six catchments with different urban surface type including roofs, roadway, park, and residential/commercial in Macau were selected for sampling and study during the period from June 2005 to September 2006. Based on univariate statistical analysis of data sampled, major pollutants discharged from different urban surface type were identified. As for iron roof runoff, Zn is the most significant pollutant. The major pollutants from urban roadway runoff are TSS and COD. Stormwater runoff from commercial/residential and Park catchments show high level of COD, TN, and TP concentration. Principal component analysis was further done for identification of linkages between stormwater quality and urban surface types. Two potential pollution sources were identified for study catchments with different urban surface types. The first one is referred as nutrients losses, soil losses and organic pollutants discharges, the second is related to heavy metals losses. PCA was proved to be a viable tool to explain the type of pollution sources and its mechanism for different urban surface type catchments.
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Affiliation(s)
- J Huang
- Department of Environmental Science and Engineering, Tsinghua University, Beijing, 100084, People's Republic of China.
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