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Chang L, Bai S, Wei P, Gao X, Dong J, Zhou B, Peng C, Jia J, Luan T. Quantitative detecting low concentration polystyrene nanoplastics in aquatic environments via an Ag/Nb 2CT x (MXene) SERS substrate. Talanta 2024; 273:125859. [PMID: 38447341 DOI: 10.1016/j.talanta.2024.125859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/08/2024]
Abstract
In this study, the plasmonic Ag nanoparticles (Ag NPs) were uniformly anchored on the high conductivity Nb2CTx (MXene) nanosheets to construct an Ag/Nb2CTx substrate for surface-enhanced Raman spectroscopy (SERS) detection of polystyrene (PS) nanoplastics. The KI addition (0.15 mol/L), the volume ratio between substrate colloid and nanoplastic suspension (2:1), and the mass ratio of Nb2CTx in substrate (14%) on SERS performance were optimized. The EM hot spots of Ag/Nb2CTx are significantly enlarged and enhanced, elucidated by FDFD simulation. Then, the linear relationship between the PS nanoplastics concentration with three different sizes (50, 300, and 500 nm) and the SERS intensity was obtained (R2 > 0.976), wherein, the detection limit was as low as 10-4 mg/mL for PS nanoplastic. Owing to the fingerprint feature, the Ag/Nb2CTx-14% substrate successfully discerns the mixtures from two-component nanoplastics. Meanwhile, it exhibits excellent stability of PS nanoplastics on different detection sites. The recovery rates of PS nanoplastics with different sizes in lake water ranged from 94.74% to 107.29%, with the relative standard deviation (RSD) ranging from 2.88% to 8.30%. Based on this method, the expanded polystyrene (EPS) decomposition behavior was evaluated, and the PS concentrations in four water environments were analyzed. This work will pave the way for the accurate quantitative detection of low concentration of nanoplastics in aquatic environments.
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Affiliation(s)
- Lekai Chang
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen, 529020, Guangdong, China
| | - Shuli Bai
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen, 529020, Guangdong, China
| | - Ping Wei
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, Guangdong, China
| | - Xingyue Gao
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen, 529020, Guangdong, China
| | - Jinfeng Dong
- School of Pharmacy and Food Engineering, Wuyi University, Jiangmen, 529020, Guangdong, China
| | - Bingpu Zhou
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, China
| | - Chao Peng
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen, 529020, Guangdong, China; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen, 529020, Guangdong, China; Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, 515200, Guangdong, China.
| | - Jianbo Jia
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen, 529020, Guangdong, China; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen, 529020, Guangdong, China; Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, 515200, Guangdong, China
| | - Tiangang Luan
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen, 529020, Guangdong, China; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen, 529020, Guangdong, China; Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, 515200, Guangdong, China
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2
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Kapila S, Sun Y, Peng C, Zhang S. Soluble alpha-synuclein post-translational modifications: unexpected regulators of pathological alpha-synuclein amplification. Neural Regen Res 2024; 19:959-960. [PMID: 37862188 PMCID: PMC10749622 DOI: 10.4103/1673-5374.385303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/05/2023] [Accepted: 07/26/2023] [Indexed: 10/22/2023] Open
Affiliation(s)
- Simran Kapila
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Yuhan Sun
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Chao Peng
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Molecular Biology Institute, Brain Research Institute, Mary S. Easton Center for Alzheimer’s Research, University of California, Los Angeles, CA, USA
| | - Shujing Zhang
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
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Hu J, Xu H, Wu T, Zhang C, Shen H, Dong R, Hu Q, Xiang Q, Chai S, Luo G, Chen X, Huang Y, Zhao X, Peng C, Wu X, Lin B, Zhang Y, Xu Y. Discovery of Highly Potent and Efficient CBP/p300 Degraders with Strong In Vivo Antitumor Activity. J Med Chem 2024. [PMID: 38649304 DOI: 10.1021/acs.jmedchem.3c02195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
The transcriptional coactivator cAMP response element binding protein (CREB)-binding protein (CBP) and its homologue p300 have emerged as attractive therapeutic targets for human cancers such as acute myeloid leukemia (AML). Herein, we report the design, synthesis, and biological evaluation of a series of cereblon (CRBN)-recruiting CBP/p300 proteolysis targeting chimeras (PROTACs) based on the inhibitor CCS1477. The representative compounds 14g (XYD190) and 14h (XYD198) potently inhibited the growth of AML cells with low nanomolar IC50 values and effectively degraded CBP and p300 proteins in a concentration- and time-dependent manner. Mechanistic studies confirmed that 14g and 14h can selectively bind to CBP/p300 bromodomains and induce CBP and p300 degradation in bromodomain family proteins in a CRBN- and proteasome-dependent manner. 14g and 14h displayed remarkable antitumor efficacy in the MV4;11 xenograft model (TGI = 88% and 93%, respectively). Our findings demonstrated that 14g and 14h are useful lead compounds and deserve further optimization and activity evaluation for the treatment of human cancers.
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Affiliation(s)
- Jiankang Hu
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
- University of Chinese Academy of Sciences, No. 19 Yuquan Road, Beijing 100049, China
| | - Hongrui Xu
- Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Medical University, Guangzhou 511436, China
| | - Tianbang Wu
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Cheng Zhang
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Hui Shen
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Ruibo Dong
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
- School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, China
| | - Qingqing Hu
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Qiuping Xiang
- Ningbo No. 2 Hospital, Ningbo, Zhejiang 315010, China
- Guoke Ningbo Life Science and Health Industry Research Institute, Ningbo, Zhejiang 315010, China
| | - Shuang Chai
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Guolong Luo
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Xiaoshan Chen
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
- University of Chinese Academy of Sciences, No. 19 Yuquan Road, Beijing 100049, China
| | - Yumin Huang
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
- University of Chinese Academy of Sciences, No. 19 Yuquan Road, Beijing 100049, China
| | - Xiaofan Zhao
- Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
- Guangzhou Medical University, Guangzhou 511436, China
| | - Chao Peng
- Jiangsu S&T Exchange Center with Foreign Countries, No. 175 Longpan Road, Nanjing 210042, China
| | - Xishan Wu
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Bin Lin
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yan Zhang
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
| | - Yong Xu
- China-New Zealand Joint Laboratory of Biomedicine and Health, State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Biocomputing, Center for Chemical Biology and Drug Discovery, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No. 190 Kaiyuan Avenue, Guangzhou 510530, China
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
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Yao F, Yuan K, Zhou W, Tang W, Tang T, Yang X, Liu H, Li F, Xu Q, Peng C. Unlocking Growth Potential in Halomonas bluephagenesis for Enhanced PHA Production with Sulfate Ions. J Ind Microbiol Biotechnol 2024:kuae013. [PMID: 38632039 DOI: 10.1093/jimb/kuae013] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
The mutant strain H. bluephagenesis (TDH4A1B5P) was found to produce PHA under low-salt, non-sterile conditions, but the yield was low. To improve the yield, different nitrogen sources were tested. It was discovered that urea was the most effective nitrogen source for promoting growth during the stable stage, while ammonium sulfate was used during the logarithmic stage. The growth time of H. bluephagenesis (TDH4A1B5P) and its PHA content were significantly prolonged by the presence of sulfate ions. After 64 hours in a 5-liter bioreactor supplemented with sulfate ions, the dry cell weight of H. bluephagenesis weighed 132 g/l and had a PHA content of 82%. To promote the growth and PHA accumulation of H. bluephagenesis (TDH4A1B5P), a feeding regimen supplemented with nitrogen sources and sulfate ions with ammonium sodium sulfate was established in this study. The dry cell weight was 124 g/L, and the PHA content accounted for 82.3% (w/w) of the dry cell weight, resulting in a PHA yield of 101 g/L in a 30-liter bioreactor using the optimized culture strategy. In conclusion, stimulating H. bluephagenesis (TDH4A1B5P) to produce PHA is a feasible and suitable strategy for all H. bluephagenesis.
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Affiliation(s)
- Fuwei Yao
- School of food science and pharmaceutical engineering; Nanjing Normal University (NNU), Nanjing, China
- Biotechnology Center; COFCO Nutrition and Health Research Institute Co., Ltd.; Beijing, China
| | - Kai Yuan
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Weiqiang Zhou
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Weitao Tang
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Tang Tang
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Xiaofan Yang
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Haijun Liu
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Fangliang Li
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
| | - Qing Xu
- School of food science and pharmaceutical engineering; Nanjing Normal University (NNU), Nanjing, China
- Biotechnology Center; COFCO Nutrition and Health Research Institute Co., Ltd.; Beijing, China
| | - Chao Peng
- COFCO Bio-Chemical Energy (Yushu) Co., Ltd.; COFCO Biotechnology Co., Ltd.; Changchun, China
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5
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Hao W, Liang B, Chen J, Chen Y, Wang Z, Zhao X, Peng C, Tian M, Yang F. Secondary formation of oxygenated and nitrated polycyclic aromatic compounds under stagnant weather conditions: Drivers and seasonal variation. Sci Total Environ 2024:172487. [PMID: 38631623 DOI: 10.1016/j.scitotenv.2024.172487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/31/2024] [Accepted: 04/12/2024] [Indexed: 04/19/2024]
Abstract
Severe air pollution tends to occur under stagnant weather conditions. This study focused on the occurrence and formation of PM2.5-bound polycyclic aromatic compounds (PACs) under stagnant weather conditions, in consideration of their adverse human health effect and ecological toxicity. The concentrations of PACs were higher under stagnant weather conditions than in other situations with averaged values of 46.0 ng/m3 versus 12.3-39.9 ng/m3 for total PACs. Secondary formation contributed to over half of the oxygenated and nitrated polycyclic aromatic compounds (OPAHs and NPAHs). Further analyses revealed different formation mechanisms for secondary OPAHs and NPAHs. Secondary production of OPAHs was sensitive to the variations of both temperature (T) and O3 concentration at T < 22 °C but sustained at a high level despite the fluctuation of temperature and O3 concentration at T > 22 °C. Elevated NO2 concentrations favored the formation of inorganic nitrogen-containing products over NPAHs under lower temperatures and higher humidity. Stagnant weather events, accompanied by raised PAC levels occurred in all seasons, but their effects on secondary processes differed among seasons. The elevated temperature, lowered humidity, and increased NO2 level facilitated the secondary formation of OPAHs and/or NPAHs during the stagnant weather events in spring and summer. While under the temperature and humidity conditions in autumn and winter, increased NO2 levels during stagnant weather events promoted the production of secondary inorganic nitrogen-containing compounds over organic products. This study raised concern about the toxic organic pollutants in the atmosphere under stagnant weather conditions and revealed different formation mechanisms between secondary oxygenated and nitrated pollutants as well as among different seasons.
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Affiliation(s)
- Weiwei Hao
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Bo Liang
- Materials Quality Supervision & Inspection Research Center, Chongqing Academy of Metrology and Quality Inspection, Chongqing 401123, China
| | - Jing Chen
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Ziqian Wang
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Xinquan Zhao
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
| | - Chao Peng
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
| | - Mi Tian
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China; Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China.
| | - Fumo Yang
- National Engineering Research Center for Flue Gas Desulfurization, Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China
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6
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Li GS, Peng C, Shi Y, Wang Y, Chen BY. [Techniques for quantifying endotypes of obstructive sleep apnea]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:383-388. [PMID: 38599817 DOI: 10.3760/cma.j.cn112147-20231027-00274] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Obstructive sleep apnea (OSA) is the frequent occurrence of apnea and/or hypopnea during sleep, leading to intermittent hypoxia, hypercapnia, and disruption of sleep architecture, further resulting in multisystem damage. The pathophysiological mechanisms include abnormal anatomical structure, low arousal threshold, high loop gain, and poor muscle reactivity, etc. As there are individual differences in the underlying mechanisms of OSA (i.e. endotypes), the effectiveness of treatment and prognosis may also vary according to these characteristics. Understanding the endotype of OSA is critical to understanding which patients are most likely to benefit from non-invasive ventilation therapy. Quantification of endotypes is central to the precision treatment of OSA and may provide the basis for accurate clinical treatment of OSA based on endotypes.
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Affiliation(s)
- G S Li
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - C Peng
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y Shi
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y Wang
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - B Y Chen
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
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Wang J, Chen P, Zhao T, Huang X, Zong J, Luo Q, Peng C, Wu X, Qiu F, Zhao D, Xiang L, Zhang Y, Yang C, Zhang F, Liao Z, Fu Y, Zeng J. Biosynthesis of Scopoletin in Sweet Potato Confers Resistance against Fusarium oxysporum. J Agric Food Chem 2024; 72:7749-7764. [PMID: 38537104 DOI: 10.1021/acs.jafc.3c09389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Fusarium wilt is a severe fungal disease caused by Fusarium oxysporum in sweet potato. We conducted transcriptome analysis to explore the resistance mechanism of sweet potato against F. oxysporum. Our findings highlighted the role of scopoletin, a hydroxycoumarin, in enhancing resistance. In vitro experiments confirmed that scopoletin and umbelliferone had inhibitory effects on the F. oxysporum growth. We identified hydroxycoumarin synthase genes IbF6'H2 and IbCOSY that are responsible for scopoletin production in sweet potatoes. The co-overexpression of IbF6'H2 and IbCOSY in tobacco plants produced the highest scopoletin levels and disease resistance. This study provides insights into the molecular basis of sweet potato defense against Fusarium wilt and identifies valuable genes for breeding wilt-resistant cultivars.
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Affiliation(s)
- Jing Wang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Peitao Chen
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Tengfei Zhao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Xianhui Huang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jikai Zong
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Qingqing Luo
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Chao Peng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Xiaoyan Wu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Fei Qiu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Dongchao Zhao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Lien Xiang
- College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
| | - Yan Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Chunxian Yang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Fangyuan Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Zhihua Liao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Yufan Fu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Junlan Zeng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Engineering and Technology Research Center for Sweet potato of Chongqing, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
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8
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Huo P, Chen W, Zhang Z, Zhang Y, Liu M, Lin P, Zhang H, Chen Z, Lezec H, Zhu W, Agrawal A, Peng C, Lu Y, Xu T. Observation of spatiotemporal optical vortices enabled by symmetry-breaking slanted nanograting. Nat Commun 2024; 15:3055. [PMID: 38594345 PMCID: PMC11003997 DOI: 10.1038/s41467-024-47475-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 04/02/2024] [Indexed: 04/11/2024] Open
Abstract
Providing additional degrees of freedom to manipulate light, spatiotemporal optical vortex (STOV) beams carrying transverse orbital angular momentum are of fundamental importance for spatiotemporal control of light-matter interactions. Unfortunately, existing methods to generate STOV are plagued by various limitations such as inefficiency, bulkiness, and complexity. Here, we theoretically propose and experimentally demonstrate a microscale singlet platform composed of a slanted nanograting to generate STOV. Leveraging the intrinsic topological singularity induced by C2 symmetry and z-mirror symmetry breaking of the slanted nanograting, STOV is generated through the Fourier transform of the spiral phase in the momentum-frequency space to the spatiotemporal domain. In experiments, we observe the space-time evolution of STOV carried by femtosecond pulses using a time-resolved interferometry technique and achieve a generation efficiency exceeding 40%. Our work sheds light on a compact and versatile platform for light pulse shaping, and paves the way towards a fully integrated system for spatiotemporal light manipulation.
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Affiliation(s)
- Pengcheng Huo
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Wei Chen
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Zixuan Zhang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Frontiers Science Center for Nano-optoelectronics, Peking University, 100871, Beijing, China
| | - Yanzeng Zhang
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Mingze Liu
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Peicheng Lin
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Hui Zhang
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Zhaoxian Chen
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China
| | - Henri Lezec
- National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Wenqi Zhu
- National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
- Maryland NanoCenter, University of Maryland, College Park, MD, 20742, USA
| | - Amit Agrawal
- National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Chao Peng
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Frontiers Science Center for Nano-optoelectronics, Peking University, 100871, Beijing, China.
| | - Yanqing Lu
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China.
| | - Ting Xu
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
- Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Nanjing University, Nanjing, 210093, China.
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9
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Lu B, Wang S, Feng H, Wang J, Zhang K, Li Y, Wu P, Zhang M, Xia Y, Peng C, Li C. FERONIA-mediated TIR1/AFB2 oxidation stimulates auxin signalling in Arabidopsis. Mol Plant 2024:S1674-2052(24)00115-1. [PMID: 38581129 DOI: 10.1016/j.molp.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/13/2024] [Accepted: 04/02/2024] [Indexed: 04/08/2024]
Abstract
The phytohormone auxin plays a pivotal role in governing plant growth and development. While the TRANSPORT INHIBITOR RESPONSE1/AUXIN SIGNALING F-BOX (TIR1/AFBs) receptors function in both the nucleus and cytoplasm, the mechanism governing the distribution of TIR1/AFBs between these small cellular compartments remains unknown. In this study, we demonstrate that auxin-mediated oxidation of TIR1/AFB2 is essential for their targeting to the nucleus. Our findings reveal that small active molecules, reactive oxygen species (ROS) and nitric oxide (NO), are indispensable for the nucleo-cytoplasmic distribution of TIR1/AFB2 in trichoblasts and root hairs. This process is regulated by the FERONIA receptor kinase-NADPH oxidase signaling pathway. ROS and NO initiate oxidative modifications in TIR1C140/516 and AFB2C135/511, facilitating their subsequent nuclear import. The oxidized forms of TIR1C140/516 and AFB2C135/511 play a crucial role in enhancing the functionality of TIR1 and AFB2 in transcriptional auxin responses. In summary, our study unveils a novel mechanism through which auxin stimulates the transportation of TIR1/AFB2 from the cytoplasm to the nucleus, orchestrated by the FERONIA-ROS signaling pathway.
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Affiliation(s)
- Baiyan Lu
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Shengnan Wang
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Hanqian Feng
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Jing Wang
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Kaixing Zhang
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Yilin Li
- National Facility for Protein Science Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201210, China
| | - Ping Wu
- National Facility for Protein Science Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201210, China
| | - Minmin Zhang
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Yanshu Xia
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Chao Peng
- National Facility for Protein Science Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201210, China
| | - Chao Li
- School of Life Sciences, East China Normal University, Shanghai, 200241, China.
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10
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Zuo J, Zheng W, Shi N, Song R, Han F, Yang C, Li J, Peng C, Li B, Chen Y. Study on the Thermal Stability of the Sweet-Tasting Protein Brazzein Based on Its Structure-Sweetness Relationship. J Agric Food Chem 2024; 72:7374-7382. [PMID: 38526016 DOI: 10.1021/acs.jafc.3c09616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Brazzein (Brz) is a sweet-tasting protein composed of 54 amino acids and is considered as a potential sugar substitute. The current methods for obtaining brazzein are complicated, and limited information is available regarding its thermal stability. In this study, we successfully expressed recombinant brazzein, achieving a sweetness threshold of 15.2 μg/mL. Subsequently, we conducted heat treatments at temperatures of 80, 90, 95, and 100 °C for a duration of 2 h to investigate the structural changes in the protein. Furthermore, we employed hydrogen-deuterium exchange coupled to mass spectrometry (HDX-MS) to analyze the effect of heating on the protein structure-sweetness relationships. Our results indicated that the thermal inactivation process primarily affects residues 6-14 and 36-45 of brazzein, especially key residues Tyr8, Tyr11, Ser14, Glu36, and Arg43, which are closely associated with its sweetness. These findings have significant implications for improving the thermal stability of brazzein.
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Affiliation(s)
- Jingnan Zuo
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wei Zheng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Nian Shi
- Xianning Vocational Technical College, Xianning 437100, China
| | - Rong Song
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Fei Han
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Chen Yang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jingwen Li
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yijie Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Wuhan 430070, China
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11
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Guo R, Shi G, Zhang D, Chen Y, Peng C, Zhai C, Yang F. An observed nocturnal ozone transport event in the Sichuan Basin, Southwestern China. J Environ Sci (China) 2024; 138:10-18. [PMID: 38135378 DOI: 10.1016/j.jes.2023.02.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/01/2022] [Revised: 02/26/2023] [Accepted: 02/27/2023] [Indexed: 12/24/2023]
Abstract
The ozone (O3) pollution in China drew lots of attention in recent years, and the Sichuan Basin (SCB) was one of the regions confronting worsening O3 pollution problem. Many previous studies have shown that regional transport is an important contributor to O3 pollution. However, very few features of the O3 profile during transport have been reported, especially in the border regions between different administrative divisions. In this study, we conducted tethered balloon soundings in SCB during the summer of 2020 and captured a nocturnal O3 transport event during the campaign. Vertically, the O3 transport occurred in the bottom of the residual layer, between 200 and 500 m above ground level. Horizontally, the transport pathway was directed from southeast to northwest based on the analysis of the wind field and air mass trajectories. The effect of transport in the residual layer on the surface O3 concentration was related to the spatial distribution of O3. For cities with high O3 concentrations in the upwind region, the transport process would bring clean air masses and abate pollution. For downwind lightly polluted cities, the transport process would slow down the decreasing or even increase the surface O3 concentration during the night. We provided observational facts on the profile features of a transboundary O3 transport event between two provincial administrative divisions, which implicated the importance of joint prevention and control measures. However, the sounding parameters were limited and the quantitative analysis was preliminary, more integrated, and thorough studies of this topic were called for in the future.
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Affiliation(s)
- Ruyue Guo
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China; College of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China
| | - Guangming Shi
- College of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China; National Engineering Research Center on Flue Gas Desulfurization, Chengdu 610065, China.
| | - Dan Zhang
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
| | - Yang Chen
- Research Center for Atmospheric Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Chao Peng
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China; Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Chongzhi Zhai
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China; Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Fumo Yang
- College of Carbon Neutrality Future Technology, Sichuan University, Chengdu 610065, China; National Engineering Research Center on Flue Gas Desulfurization, Chengdu 610065, China
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12
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Li Q, Yang PY, Peng C, Zhang XJ, Jiang YT, Li YP, Gao L. New meroterpenoids and polyketides from the endophytic fungus Paraphaeosphaeria sp. C-XB-J-1 and their anti-inflammatory and SARS-CoV-2 M pro inhibitory activities. Bioorg Chem 2024; 147:107315. [PMID: 38604017 DOI: 10.1016/j.bioorg.2024.107315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/15/2024] [Accepted: 03/26/2024] [Indexed: 04/13/2024]
Abstract
Seven new meroterpenoids, paraphaeones A-G (1-7), and two new polyketides, paraphaeones H-I (8-9), along with eight known compounds (10-17), were isolated from the endophytic fungus Paraphaeosphaeria sp. C-XB-J-1. The structures of 1-9 were identified through the analysis of 1H, 13C, and 2D NMR spectra, assisted by HR-ESI-MS data. Compounds 1 and 7 exhibited a dose-dependent decrease in lactate dehydrogenase levels, with IC50 values of 1.78 μM and 1.54 μM, respectively. Moreover, they inhibited the secretion of IL-1β and CASP-1, resulting in a reduction in the activity levels of NLRP3 inflammasomes. Fluorescence microscopy results indicated that compound 7 concentration-dependently attenuated cell pyroptosis. Additionally, compounds 4 and 7 showed potential inhibitory effects on the severe acute respiratory syndrome coronavirus-2 main protease (SARS-CoV-2 Mpro), with IC50 values of 10.8 ± 0.9 μM and 12.9 ± 0.7 μM, respectively.
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Affiliation(s)
- Qi Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources of Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan, PR China
| | - Peng-Yun Yang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Key Laboratory of Research and Development for Natural Products, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Pharmacy and School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, PR China
| | - Chao Peng
- Key Laboratory of Chemistry in Ethnic Medicinal Resources of Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan, PR China
| | - Xing-Jie Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory, Yunnan Key Laboratory of Research and Development for Natural Products, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Pharmacy and School of Chemical Science and Technology, Yunnan University, Kunming 650091, Yunnan, PR China
| | - Yun-Tao Jiang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources of Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan, PR China.
| | - Yan-Ping Li
- School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming 650500, Yunnan, PR China.
| | - Lu Gao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources of Ministry of Education, Yunnan Minzu University, Kunming 650031, Yunnan, PR China.
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13
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Wang H, Zuo Y, Yin X, Chen Z, Zhang Z, Wang F, Hu Y, Zhang X, Peng C. Ultralow-loss optical interconnect enabled by topological unidirectional guided resonance. Sci Adv 2024; 10:eadn4372. [PMID: 38507487 PMCID: PMC10954227 DOI: 10.1126/sciadv.adn4372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 02/12/2024] [Indexed: 03/22/2024]
Abstract
Grating couplers that interconnect photonic chips to off-chip components are crucial for various optoelectronics applications. Despite numerous efforts in past decades, the existing grating couplers are still far from optimal in energy efficiency and thus hinder photonic integration toward a larger scale. Here, we propose a strategy to achieve ultralow-loss grating couplers by using unidirectional guided resonances (UGRs), suppressing the useless downward radiation with no mirror on the bottom. By engineering the dispersion and apodizing the geometry of grating, we experimentally realize a grating coupler with a record-low loss of -0.34 dB and 1-dB bandwidth exceeding 30 nm at the telecom wavelength of 1550 nm and further demonstrate an optic via with a loss of only -0.94 dB. Given that UGRs ubiquitously exist in a variety of grating geometries, our work sheds light on a systematic method to achieve energy-efficient optical interconnect and paves the way to large-scale photonic integration.
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Affiliation(s)
- Haoran Wang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
| | - Yi Zuo
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
| | - Xuefan Yin
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
- Department of Electronic Science and Engineering, Kyoto University, Kyoto-Daigaku-Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Zihao Chen
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
| | - Zixuan Zhang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
| | - Feifan Wang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
| | - Yuefeng Hu
- Peng Cheng Laboratory, Shenzhen 518055, China
- Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xiaoyu Zhang
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
| | - Chao Peng
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics & Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China
- Peng Cheng Laboratory, Shenzhen 518055, China
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14
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Gou Y, Jing Y, Song J, Nagdy MM, Peng C, Zeng L, Chen M, Lan X, Htun ZLL, Liao Z, Li Y. A novel bHLH gene responsive to low nitrogen positively regulates the biosynthesis of medicinal tropane alkaloids in Atropa belladonna. Int J Biol Macromol 2024:131012. [PMID: 38522709 DOI: 10.1016/j.ijbiomac.2024.131012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/16/2024] [Accepted: 03/18/2024] [Indexed: 03/26/2024]
Abstract
Medicinal tropane alkaloids (TAs), including hyoscyamine, anisodamine and scopolamine, are essential anticholinergic drugs specifically produced in several solanaceous plants. Atropa belladonna is one of the most important medicinal plants that produces TAs. Therefore, it is necessary to cultivate new A. belladonna germplasm with the high content of TAs. Here, we found that the levels of TAs were elevated under low nitrogen (LN) condition, and identified a LN-responsive bHLH transcription factor (TF) of A. belladonna (named LNIR) regulating the biosynthesis of TAs. The expression level of LNIR was highest in secondary roots where TAs are synthesized specifically, and was significantly induced by LN. Further research revealed that LNIR directly activated the transcription of hyoscyamine 6β-hydroxylase gene (H6H) by binding to its promoter, which converts hyoscyamine into anisodamine and subsequently epoxidizes anisodamine to form scopolamine. Overexpression of LNIR upregulated the expression levels of TA biosynthesis genes and consequently led to the increased production of TAs. In summary, we functionally identified a LN-responsive bHLH gene that facilitated the development of A. belladonna with high-yield TAs under the decreased usage of nitrogen fertilizer.
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Affiliation(s)
- Yuqin Gou
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Yanming Jing
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jiaxin Song
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Mohammad Mahmoud Nagdy
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China; Department of Medicinal and Aromatic Plants Research, National Research Centre, 12311 Dokki, Cairo, Egypt
| | - Chao Peng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Lingjiang Zeng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China
| | - Min Chen
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Xiaozhong Lan
- TAAHC-SWU Medicinal Plant Joint R&D Centre, The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Xizang Characteristic Agricultural and Animal Husbandry Resources, Tibet Agriculture and Animal Husbandry College, Nyingchi of Xizang 860000, China
| | - Zun Lai Lai Htun
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China; Department of Botany, University of Magway, Magway 04012, Myanmar
| | - Zhihua Liao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China.
| | - Yan Li
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City State Key Laboratory of Silkworm Genome Biology, SWU-TAAHC Medicinal Plant Joint R&D Centre, School of Life Sciences, Southwest University, Chongqing 400715, China.
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15
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Sun H, Yu Y, Peng C. Shyness and academic procrastination among Chinese adolescents: a moderated mediation model of self-regulation and self-focused attention. Front Psychol 2024; 15:1352342. [PMID: 38577126 PMCID: PMC10993869 DOI: 10.3389/fpsyg.2024.1352342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/19/2024] [Indexed: 04/06/2024] Open
Abstract
Academic procrastination is a common concern among adolescents, but the correlation between shyness and academic procrastination and the internal mechanisms have not yet been thoroughly investigated. Based on a questionnaire survey with 1,279 Chinese middle school students, this study examined the effect of shyness on academic procrastination and its underlying mechanism of self-regulation and self-focused attention. Results revealed that: (1) shyness significantly predicted academic procrastination. (2) Self-regulation mediated the relationship between shyness and academic procrastination. (3) Self-focused attention played a moderating role in the first half of this mediation process. Specifically, higher level of self-focused attention strengthened the predictive effect of shyness on self-regulation. These results underscored the latent risks and protective factors associated with shyness, self-regulation, and self-focused attention in adolescent academic procrastination. In future research and interventions, attention may be directed towards improving individual internal factors to assist adolescents in effectively addressing issues related to academic procrastination.
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Affiliation(s)
- Hong Sun
- College of Teacher Education, Taishan University Shandong Province, Tai’an, China
| | - Yang Yu
- College of Teacher Education, Taishan University Shandong Province, Tai’an, China
| | - Chao Peng
- Shandong Provincial Qianfoshan Hospital, Jinan, China
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16
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Su H, Peng C, Liu Y. Regulation of ferroptosis by PI3K/Akt signaling pathway: a promising therapeutic axis in cancer. Front Cell Dev Biol 2024; 12:1372330. [PMID: 38562143 PMCID: PMC10982379 DOI: 10.3389/fcell.2024.1372330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/04/2024] [Indexed: 04/04/2024] Open
Abstract
The global challenge posed by cancer, marked by rising incidence and mortality rates, underscores the urgency for innovative therapeutic approaches. The PI3K/Akt signaling pathway, frequently amplified in various cancers, is central in regulating essential cellular processes. Its dysregulation, often stemming from genetic mutations, significantly contributes to cancer initiation, progression, and resistance to therapy. Concurrently, ferroptosis, a recently discovered form of regulated cell death characterized by iron-dependent processes and lipid reactive oxygen species buildup, holds implications for diseases, including cancer. Exploring the interplay between the dysregulated PI3K/Akt pathway and ferroptosis unveils potential insights into the molecular mechanisms driving or inhibiting ferroptotic processes in cancer cells. Evidence suggests that inhibiting the PI3K/Akt pathway may sensitize cancer cells to ferroptosis induction, offering a promising strategy to overcome drug resistance. This review aims to provide a comprehensive exploration of this interplay, shedding light on the potential for disrupting the PI3K/Akt pathway to enhance ferroptosis as an alternative route for inducing cell death and improving cancer treatment outcomes.
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Affiliation(s)
- Hua Su
- Xingyi People’s Hospital, Xinyi, China
| | - Chao Peng
- Xingyi People’s Hospital, Xinyi, China
| | - Yang Liu
- The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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17
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Zhang J, Deng Z, Bai S, Liu C, Zhang M, Peng C, Xu X, Jia J, Luan T. Fe, N, S co-doped carbon network derived from acetate-modified Fe-ZIF-8 for oxygen reduction reaction. J Colloid Interface Sci 2024; 658:373-382. [PMID: 38113546 DOI: 10.1016/j.jcis.2023.12.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/21/2023]
Abstract
In this work, potassium acetate (KAc) was added during the synthesis of a Zn-Fe based metal-organic framework (Fe-ZIF-8) to increase the fixed amount of Fe while simultaneously enhancing the number of pores. Electrospinning was utilized to embed KAc-modified Fe-ZIF-8 (Fe-ZIF-8-Ac) into the polyacrylonitrile nanofiber mesh, to obtain a network composite (Fe@NC-Ac) with hierarchical porous structure. Fe@NC-Ac was co-pyrolyzed with thiourea, resulting in Fe, N, S co-doped carbon electrocatalyst. The electrochemical tests indicated that the prepared catalyst displayed relatively remarkable oxygen reduction reaction (ORR) catalytic activity, with an onset potential (Eonset) of 1.08 V (vs. reversible hydrogen electrode, RHE) and a half-wave potential (E1/2) of 0.94 V, both higher than those of the commercial Pt/C (Eonset = 0.95 V and E1/2 = 0.84 V), respectively. Assembled into Zn-air batteries, the optimized catalyst exhibited higher open circuit voltage (1.698 V) and peak power density (90 mW cm-2) than those of the commercial 20 wt% Pt/C (1.402 V and 80 mW cm-2), respectively. This work provided a straightforward manufacturing strategy for the design of hierarchical porous carbon-based ORR catalysts with desirable performance.
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Affiliation(s)
- Junyuan Zhang
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Ziwei Deng
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Shuli Bai
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Changyu Liu
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Mengchen Zhang
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Chao Peng
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
| | - Xiaolong Xu
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China.
| | - Jianbo Jia
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China.
| | - Tiangang Luan
- Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, School of Environmental and Chemical Engineering; Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, China
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Zhang Q, Dong J, Zhou C, Zhang D, Yuan S, Kramer D, Xue D, Peng C. Machine learning for data-driven design of high-safety lithium metal anode. STAR Protoc 2024; 5:102834. [PMID: 38198281 PMCID: PMC10820802 DOI: 10.1016/j.xpro.2023.102834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/17/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Here, we present a protocol for developing an inorganic-organic hybrid interphase layer using the self-assembled monolayers technique to enhance the surface of the lithium metal anode. We describe steps for extracting organic molecules from open-sourced databases and calculating their microscopic properties. We then detail procedures for developing a machine learning model for predicting the ionic diffusion barrier and preparing the inputs for prediction. This protocol enables a cost-effective workflow to identify promising self-assembled monolayers with exceptional performance. For complete details on the use and execution of this protocol, please refer to Zhang et al. (2023).1.
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Affiliation(s)
- Qi Zhang
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Junlin Dong
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chuan Zhou
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Dantong Zhang
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Shuguang Yuan
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Denis Kramer
- Engineering Sciences, University of Southampton, SO17 1BJ Southampton, UK; Helmut-Schmidt-University, University of the Armed Forces, 22043 Hamburg, Germany
| | - Dongfeng Xue
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Chao Peng
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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19
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Wu X, Peng C, Lin M, Li Z, Yang X, Liu J, Yang X, Zuo X. Risk of metastasis and survival in patients undergoing different treatment strategies with T1 colonic neuroendocrine tumors. J Endocrinol Invest 2024; 47:671-681. [PMID: 37653287 DOI: 10.1007/s40618-023-02185-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE The efficacy and safety of local excision (LE) for small (< 1‒2 cm) colonic neuroendocrine tumors (NETs) is controversial due to the higher metastasis risk when compared with rectal NETs. The study aimed to evaluate the metastasis risk of T1 colonic NETs and compare patients' long-term prognosis after LE or radical surgery (RS). METHODS The Surveillance Epidemiology and End Results database was used to identify patients with T1 colonic NETs (2004‒2015). Multivariable logistic regression was performed to assess factors associated with metastasis risk. Propensity score matching was used to balance the variables. Cancer-specific survival (CSS) and overall survival (OS) were calculated to estimate the prognosis of patients with T1N0M0 colonic NETs who underwent LE or RS. RESULTS Of the 610 patients with colonic NETs, 46 (7.54%) had metastasis at diagnosis. Tumor size (11-20 mm) (OR = 9.51; 95% confidence interval (CI): 4.32‒21.45; P < 0.001), right colon (OR = 15.79; 95% CI 7.20‒38.56; P < 0.001), submucosal infiltration (OR = 2.08; 95% CI 0.84‒5.57; P = 0.125) were independent risk factors associated with metastasis. Of the 515 patients with T1N0M0 colonic NETs, the overall long-term prognosis of LE was as good as that of RS groups (after matching, 5-year CSS: 97.9% vs. 94.6%, P = 0.450; 5-year OS: 92.7% vs. 85.6%, P = 0.009). CONCLUSION Tumor size (11‒20 mm) and site (right colon) are associated with metastasis in T1 colonic NETs. In the absence of metastasis, LE could be a viable option for 0‒10 mm T1 colonic NETs with well/moderate differentiation in the left colon in terms of long-term survival.
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Affiliation(s)
- X Wu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - C Peng
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - M Lin
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - Z Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - X Yang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Clinical Epidemiology Unit, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - J Liu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
| | - X Yang
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - X Zuo
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, Shandong, China.
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
- Robot engineering laboratory for precise diagnosis and therapy of GI tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
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20
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Peng C, Pang R, Li J, Wang E. Current Advances on the Single-Atom Nanozyme and Its Bioapplications. Adv Mater 2024; 36:e2211724. [PMID: 36773312 DOI: 10.1002/adma.202211724] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Nanozymes, a class of nanomaterials mimicking the function of enzymes, have aroused much attention as the candidate in diverse fields with the arbitrarily tunable features owing to the diversity of crystalline nanostructures, composition, and surface configurations. However, the uncertainty of their active sites and the lower intrinsic deficiencies of nanomaterial-initiated catalysis compared with the natural enzymes promote the pursuing of alternatives by imitating the biological active centers. Single-atom nanozymes (SAzymes) maximize the atom utilization with the well-defined structure, providing an important bridge to investigate mechanism and the relationship between structure and catalytic activity. They have risen as the new burgeoning alternative to the natural enzyme from in vitro bioanalytical tool to in vivo therapy owing to the flexible atomic engineering structure. Here, focus is mainly on the three parts. First, a detailed overview of single-atom catalyst synthesis strategies including bottom-up and top-down approaches is given. Then, according to the structural feature of single-atom nanocatalysts, the influence factors such as central metal atom, coordination number, heteroatom doping, and the metal-support interaction are discussed and the representative biological applications (including antibacterial/antiviral performance, cancer therapy, and biosensing) are highlighted. In the end, the future perspective and challenge facing are demonstrated.
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Affiliation(s)
- Chao Peng
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Ruoyu Pang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jing Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
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21
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Wang Z, Li K, Peng C. Six-Part Classification of Femoral Intertrochanteric Fractures: A Classification Method to Improve the Diagnosis Rate of Unstable Fractures. Orthop Surg 2024; 16:637-653. [PMID: 38326289 PMCID: PMC10925504 DOI: 10.1111/os.13998] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/20/2023] [Accepted: 12/24/2023] [Indexed: 02/09/2024] Open
Abstract
OBJECTIVE Three-dimensional (3D)-CT data is currently insufficient for classifying femoral trochanter fractures. Fracture classification based on fracture stability analysis is helpful to evaluate the prognosis of patients after internal fixation. Currently, there is a lack of fracture classification methods based on 3D-CT images and fracture stability analysis. The aim of this study was to propose a new six-part classification method for intertrochanteric fractures of femur based on 3D-CT images and fracture stability analysis to improve the diagnosis rate of unstable fractures. METHOD From January 2009 to December 2019, 320 patients receiving intramedullary nail surgery for femoral intertrochanteric fractures at Chengdu University's Affiliated Hospital were studied retrospectively. AO and six-part classifications were undertaken according to the 3D-CT image data of the patients, and the stability rates of two classifications were compared. According to the six-part classification stability criteria, the patients were divided into a stable and an unstable fracture group. The perioperative and follow-up indicators of the two groups were statistically analyzed, and the six-part classification's inter-observer and internal reliability was examined. RESULTS There were 107 men and 213 females women the 320 patients, with an average age of 79.32 ± 11.26 years and an osteoporosis rate of 55.63% (178/320). The fracture stability rate of 39.69% (127/320) was studied using a six-part classification method. The AO classification fracture stability rate was 42.50% (136/320), with no significant difference (χ2 = 0.523, p = 0.470 > 0.05). There is no statistically significant difference between the two classification techniques in the examination of fracture stability (McNemer difference test p = 0.306 > 0.05; Kappa consistency test p < 0.001). According to the six-part classification, fracture stability and instability group were divided into two groups. The following indicators were compared between the two groups: The surgery time (p = 0.280), fracture reduction quality (p = 0.062); function independent measurement (p = 0.075); timed up and go test (TUG) (p = 0.191), and Parker-Palmer score (p = 0.146). Were as compared according to the six-part classification of stable and unstable fracture groups. Perioperative blood loss (p < 0.001), the Harris score excellent and good rate (p = 0.043), fracture healing time (p < 0.001), and the entire weight-bearing duration (p = 0.002) were statistically significant. The difference in femoral head height (FHH) (p = 0.046), the change in femoral neck shaft angle (p = 0.003), the change in medial cephalic nail length (p = 0.033), and the change in tip-apex distance (TAD) (p = 0.002) were statistically significant compared to the relevant markers of imaging stability. Fracture stability had a substantial influence on Harris ratings at 3, 6, and 12 months following surgery, according to repeated measures analysis of variance (F(1,126) = 32.604, p < 0.001). The effect of time on the Harris score was similarly significant (F(1.893,238.508) = 202.771, p < 0.001). The observer intra-observer inter-group correlation coefficient (ICC) value was 0.941 > 0.75, the inter-observer ICC value was 0.921 > 0.75, and the intra-observer and inter-observer reliability were both good. CONCLUSION The six-part classification of femoral intertrochanteric fractures based on 3D-CT images has broader guiding relevance for femoral intertrochanteric fracture stability analysis. Clinicians will find this classification simpler and more consistent than the AO classification.
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Affiliation(s)
- ZhengHao Wang
- Affiliated Hospital of Chengdu UniversityChengduChina
| | - KaiNan Li
- Affiliated Hospital of Chengdu UniversityChengduChina
| | - Chao Peng
- Affiliated Hospital of Chengdu UniversityChengduChina
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Li Z, Peng C, Wang H, Liu X. Improved muscle fatty acid composition and oxidative stability in lambs grazing on sainfoin pasture. Vet Anim Sci 2024; 23:100337. [PMID: 38328742 PMCID: PMC10847756 DOI: 10.1016/j.vas.2024.100337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024] Open
Abstract
As a mode of animal management, grazing on pasture has the potential to improve animal performance and provide healthy meat. However, there is little information about the effects of lamb meat quality grazed on sainfoin pasture. Therefore, the present study was conducted to compare the fatty acid composition and oxidative stability of growing lambs. The twenty-four lambs were randomly divided into grazing on sainfoin pasture (GS) or feeding indoors pelleted total mixed ration (FI). The results show that GS had the higher polyunsaturated fatty acids (PUFA), especially n-3 PUFA (P = 0.002), and beneficial for nutritional index of fatty acid. Corresponding that GS had lower the Thiobarbituric acid reactive substance (TBARS) in raw (P = 0.005) and cooked meat (P = 0.008). The GS had higher total phenols (P = 0.021), ferric reducing antioxidant power (FRAP) (P = 0.048) and α-Tocopherol of meat (P = 0.004). In conclusion, grazing on sainfoin pasture in lambs can improve muscle fatty acid composition and oxidative stability than feeding indoors.
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Affiliation(s)
- Zijian Li
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Engineering Research Center of Grassland Industry, Ministry of Education, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Chao Peng
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Engineering Research Center of Grassland Industry, Ministry of Education, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Hucheng Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Engineering Research Center of Grassland Industry, Ministry of Education, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Xianbai Liu
- Neiguanying Animal Husbandry and Veterinary Station, Anding District Animal Husbandry and Veterinary Bureau, Dingxi, China
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Ye Y, Peng C, Zhu D, Yang R, Deng L, Wang T, Tang Y, Lu L. Identification of sulfamethazine degraders in swine farm-impacted river and farmland: A comparative study of aerobic and anaerobic environments. Sci Total Environ 2024; 912:169299. [PMID: 38104834 DOI: 10.1016/j.scitotenv.2023.169299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/20/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Sulfonamides (SAs) are extensively used antibiotics in the prevention and treatment of animal diseases, leading to significant SAs pollution in surrounding environments. Microbial degradation has been proposed as a crucial mechanism for removing SAs, but the taxonomic identification of microbial functional guilds responsible for SAs degradation in nature remain largely unexplored. Here, we employed 13C-sulfamethazine (SMZ)-based DNA-stable isotope probing (SIP) and metagenomic sequencing to investigate SMZ degraders in three distinct swine farm wastewater-receiving environments within an agricultural ecosystem. These environments include the aerobic riparian wetland soil, agricultural soil, and anaerobic river sediment. SMZ mineralization activities exhibited significant variation, with the highest rate observed in aerobic riparian wetland soil. SMZ had a substantial impact on the microbial community compositions across all samples. DNA-SIP analysis demonstrated that Thiobacillus, Auicella, Sphingomonas, and Rhodobacter were dominant active SMZ degraders in the wetland soil, whereas Ellin6067, Ilumatobacter, Dongia, and Steroidobacter predominated in the agricultural soil. The genus MND1 and family Vicinamibacteraceae were identified as SMZ degrader in both soils. In contrast, anaerobic SMZ degradation in the river sediment was mainly performed by genera Microvirga, Flavobacterium, Dechlorobacter, Atopostipes, and families Nocardioidaceae, Micrococcaceae, Anaerolineaceae. Metagenomic analysis of 13C-DNA identified key SAs degradation genes (sadA and sadC), and various of dioxygenases, and aromatic hydrocarbon degradation-related functional genes, indicating their involvement in degradation of SMZ and its intermediate products. These findings highlight the variations of indigenous SAs oxidizers in complex natural habitats and emphasize the consideration of applying these naturally active degraders in future antibiotic bioremediation.
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Affiliation(s)
- Yuqiu Ye
- College of Life Sciences, China West Normal University, Nanchong 637002, China
| | - Chao Peng
- College of Life Sciences, China West Normal University, Nanchong 637002, China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637009, China
| | - Dong Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Ruiyu Yang
- College of Life Sciences, China West Normal University, Nanchong 637002, China
| | - Linjie Deng
- College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
| | - Tao Wang
- College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China
| | - Yun Tang
- College of Life Sciences, China West Normal University, Nanchong 637002, China
| | - Lu Lu
- College of Environmental Science and Engineering, China West Normal University, Nanchong 637009, China; Key Laboratory of Nanchong City of Ecological Environment Protection and Pollution Prevention in Jialing River Basin, China West Normal University, Nanchong 637009, China.
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24
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Tao Z, Shen B, Li W, Xing L, Wang H, Wu Y, Tao Y, Zhou Y, He Y, Peng C, Shu H, Wang X. Versatile photonic molecule switch in multimode microresonators. Light Sci Appl 2024; 13:51. [PMID: 38374124 PMCID: PMC10876944 DOI: 10.1038/s41377-024-01399-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/15/2024] [Accepted: 01/25/2024] [Indexed: 02/21/2024]
Abstract
Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental optical phenomena analogous to atomic physics. Previously, the distinct energy levels and interactions in such two-level systems were provided by coupled microresonators. The reconfigurability is limited, as they often require delicate external field stimuli or mechanically altering the geometric factors. These highly specific approaches also limit potential applications. Here, we propose a versatile on-chip photonic molecule in a multimode microring, utilizing a flexible regulation methodology to dynamically control the existence and interaction strength of spatial modes. The transition between single/multi-mode states enables the "switched-off/on" functionality of the photonic molecule, supporting wider generalized applications scenarios. In particular, "switched-on" state shows flexible and multidimensional mode splitting control in aspects of both coupling strength and phase difference, equivalent to the a.c. and d.c. Stark effect. "Switched-off" state allows for perfect low-loss single-mode transition (Qi ~ 10 million) under an ultra-compact bend size (FSR ~ 115 GHz) in a foundry-based silicon microring. It breaks the stereotyped image of the FSR-Q factor trade-off, enabling ultra-wideband and high-resolution millimeter-wave photonic operations. Our demonstration provides a flexible and portable solution for the integrated photonic molecule system, extending its research scope from fundamental physics to real-world applications such as nonlinear optical signal processing and sixth-generation wireless communication.
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Affiliation(s)
- Zihan Tao
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China
| | - Bitao Shen
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China
| | - Wencan Li
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China
| | - Luwen Xing
- College of Engineering, Peking University, Beijing, 100871, China
| | - Haoyu Wang
- School of Integrated Circuits, Peking University, 100871, Bejing, China
| | - Yichen Wu
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China
| | - Yuansheng Tao
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China
| | - Yan Zhou
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, 226010, China
| | - Yandong He
- School of Integrated Circuits, Peking University, 100871, Bejing, China
| | - Chao Peng
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China
- Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing, 100871, China
- Peng Cheng Laboratory, Shenzhen, 518055, China
| | - Haowen Shu
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China.
| | - Xingjun Wang
- State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China.
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, 226010, China.
- Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing, 100871, China.
- Peng Cheng Laboratory, Shenzhen, 518055, China.
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Hu Y, Wang Y, Peng C, Li H, Yi C, Li G, Deng Y, Yin X. COVID-19 as a Potential Risk Factor for Acute Macular Neuroretinopathy. J Neuroophthalmol 2024:00041327-990000000-00581. [PMID: 38376924 DOI: 10.1097/wno.0000000000002101] [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: 02/21/2024]
Affiliation(s)
- Yunwei Hu
- Department of Ophthalmology (YH, YW, GL, YD, XY), The Second Affiliated Hospital of Nanchang University, Nanchang, China; Department of Ophthalmology (CP, HL), Jiangmen Central Hospital, Jiangmen, China; and Chaoju Eye Care (CY), Chifeng, China
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Tan R, Zhu X, Sun Y, Yang S, Peng C, Feng X, Chen Z, Yimamu Y, Liao G, Yang L. The association of HBV infection and head and neck cancer: a systematic review and meta-analysis. BMC Cancer 2024; 24:225. [PMID: 38365701 PMCID: PMC10874002 DOI: 10.1186/s12885-024-11967-7] [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: 10/21/2023] [Accepted: 02/06/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) infections is an important public health problem worldwide and closely affect extrahepatic cancer. Several recent studies have investigated the relationship between HBV infection and head and neck cancer (HNC), but their findings were inconsistent.In order to address the limitations of small sample sizes, we conducted a meta-analysis to assess the association between HBV and HNC. METHODS We systematically searched PubMed, Web of Science, Embase, Scopus, Cochrane Library, and China National Knowledge Infrastructure from inception to August 2023. Original articles published as a case-control or cohort study were included. HBV infection was identified by HBsAg, HBV DNA or ICD codes. Review articles, meeting abstracts, case reports, communications, editorials and letters were excluded, as were studies in a language other than English or Chinese. According to the MOOSE guidelines, frequencies reported for all dichotomous variables were extracted by two reviewers independently. Similarly, the outcomes of OR, RR or HR, and 95% CIs after adjusting for age and gender were collected. RESULTS Thirteen relevant studies and 58,006 patients with HNC were included. Our analysis revealed a positive correlation between HBV and HNC (OR = 1.50; 95% CI: 1.28-1.77). After adjusting for age and gender, the similar result (OR = 1.30; 95% CI: 1.10-1.54) was obtained. Subgroup analysis further demonstrated a significant association between HBV infection and oral cancer (OR = 1.24; 95% CI: 1.05-1.47), as well as nasopharyngeal carcinoma (OR = 1.41; 95% CI: 1.26-1.58). However, due to the limited number of studies included, the statistical significance was not reached for cancer of the oropharynx (OR = 1.82; 95% CI: 0.66-5.05), hypopharynx (OR = 1.33; 95% CI: 0.88-2.00), and larynx (OR = 1.25; 95% CI: 0.69-2.24) after adjusting for age and gender. When excluding the interference of HIV/HCV, smoking and alcohol use, the final outcome (OR = 1.17; 95% CI: 1.01-1.35) got the same conclusion. CONCLUSIONS Our study confirmed a positive relationship between HNC, specifically oral cancer and nasopharyngeal carcinoma, and HBV infection. However, further investigation is required at the molecular level to gather additional evidence in HNC.
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Affiliation(s)
- Rukeng Tan
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Xinyu Zhu
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Yutong Sun
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Shihao Yang
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Chao Peng
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Xinkai Feng
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Zengyu Chen
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China
| | - Yiliyaer Yimamu
- The First People's Hospital of Kashi Area, Xinjiang Uygur Autonomous Region, No.120, Yingbin Avenue, Kashi, People's Republic of China
| | - Guiqing Liao
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China.
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China.
| | - Le Yang
- Hospital of Stomatology, Sun Yat-sen University, 56th Lingyuanxi Road, 510055, Guangzhou, Guangdong, China.
- Guangdong Province Key Laboratory of Stomatology, No. 74, 2nd Zhongshan Road, 510080, Guangzhou, Guangdong, China.
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Yu M, Qian X, Wang Y, Li Q, Peng C, Chen B, Fang P, Shang W, Zhang Z. Emerging role of NEDD8-mediated neddylation in age-related metabolic diseases. Ageing Res Rev 2024; 94:102191. [PMID: 38199526 DOI: 10.1016/j.arr.2024.102191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/29/2023] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
Aging in humans is associated with abdominal distribution and remodeling of body fat and a parallel gradual increase in the prevalence of metabolic diseases such as obesity, type 2 diabetes mellitus and fatty liver disease, as well as the risk of developing metabolic complications. Current treatments might be improved by understanding the detailed mechanisms underlying the onset of age-related metabolic disorders. Neddylation, a post-translational modification that adds the ubiquitin-like protein NEDD8 to substrate proteins, has recently been linked to age-related metabolic diseases, opening new avenues of investigation and raising a potential target for treatment of these diseases. In this review, we will focus on the potential role of NEDD8-mediated neddylation in age-related metabolic dysregulation, insulin resistance, obesity, type 2 diabetes mellitus and fatty liver. We propose that alterations in NEDD8-mediated neddylation contribute to triggering insulin resistance and the development of age-related metabolic dysregulation, thus highlighting NEDD8 as a promising therapeutic target for preventing age-related metabolic diseases.
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Affiliation(s)
- Mei Yu
- Taizhou Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Taizhou 225300, China
| | - Xueshen Qian
- Taizhou Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Taizhou 225300, China
| | - Yajing Wang
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou 225001, China
| | - Qiao Li
- Taizhou Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Taizhou 225300, China
| | - Chao Peng
- Taizhou Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Taizhou 225300, China
| | - Bei Chen
- Taizhou Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Taizhou 225300, China
| | - Penghua Fang
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Wenbin Shang
- Key Laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Zhenwen Zhang
- Department of Endocrinology, Clinical Medical College, Yangzhou University, Yangzhou 225001, China.
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28
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Cai X, Zhang J, Li L, Liu L, Tang M, Zhou X, Peng C, Li X, Chen X, Xu M, Zhang H, Wang J, Huang Y, Li T. Copy Number Alterations Predict Development of OSCC from Oral Leukoplakia. J Dent Res 2024; 103:138-146. [PMID: 38217281 DOI: 10.1177/00220345231217160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024] Open
Abstract
Oral leukoplakia (OLK) is a common type of potentially malignant disorder. Early identification of the malignancy potential leads to a better management of OLK and prediction of development of oral squamous cell carcinoma (OSCC). However, there has been no effective biomarker to assess the risk of malignancy in OLK. Genomic copy number alteration (CNA) is a complex chromosomal structural variation in the genome and has been identified as a potential biomarker in multiple cancers. This study aimed to develop a predictive model for the malignant transformation risk of OLK by copy number analysis. A total of 431 OLK samples with long-term follow-up (median follow-up of 67 mo) from multiple academic centers were analyzed for CNAs. CNA events increased with the severity of hyperplasia, mild dysplasia, moderate dysplasia, and severe dysplasia. More CNA events were present in patients with OLK who later developed OSCC than in those with OLK who did not. By multivariate Cox regression analysis, the OLK of the CNA scorehigh group showed an increased risk of malignant transformation than the CNA scorelow group (P < 0.001). A CNA score model was developed to accurately predict the prognosis (area under the receiver operating characteristic curve [AUC] = 0.879; 95% confidence interval [CI], 0.799-0.959) and was validated using data from 2 external centers (AUC = 0.836, 95% CI, 0.683-0.989; AUC = 0.876, 95% CI, 0.682-1.000), and all of them showed better prediction performances than histopathological grade in assessing the transformation risk of OLK. Furthermore, we performed CNA models among 4 subgroups of OLK with hyperplasia, mild dysplasia, moderate dysplasia, and severe dysplasia and found that CNA score can accurately predict malignant transformation of different subgroups. CNA score may be a useful biomarker to predict malignant transformation of OLK. Subtyping of OLK by the CNA score could contribute to better management of OLK and predicting development of OSCC.
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Affiliation(s)
- X Cai
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - J Zhang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - L Li
- Hunan Key Laboratory of Oral Health Research & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, Hunan, China
| | - L Liu
- Changping Laboratory, Beijing, China
| | - M Tang
- Beijing Advanced Innovation Center for Genomics (ICG), Biomedical Pioneering Innovation Center (BIOPIC), School of Life Sciences, Peking University, Beijing, China
| | - X Zhou
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - C Peng
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
| | - X Li
- Department of Periodontology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - X Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - M Xu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - H Zhang
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China
| | - J Wang
- School of Life Sciences, Tsinghua University, Beijing, China, Tsinghua University, Beijing, China
| | - Y Huang
- Beijing Advanced Innovation Center for Genomics (ICG), Biomedical Pioneering Innovation Center (BIOPIC), School of Life Sciences, Peking University, Beijing, China
- College of Chemistry and Molecular Engineering and Beijing National Laboratory for Molecular Sciences, Peking University, Beijing, China
| | - T Li
- Department of Oral Pathology, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, China
- Research Unit of Precision Pathologic Diagnosis in Tumors of the Oral and Maxillofacial Regions, Chinese Academy of Medical Sciences (2019RU034), Beijing, China
- Laboratory of Oral Biomedicine, Henan University School of Stomatology, Kaifeng, Henan, China
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Huang Y, Wu Y, Hu H, Tong B, Wang J, Zhang S, Wang Y, Zhang J, Yin Y, Dai S, Zhao W, An B, Pu J, Wang Y, Peng C, Li N, Zhou J, Tan Y, Zhong C. Accelerating the design of pili-enabled living materials using an integrative technological workflow. Nat Chem Biol 2024; 20:201-210. [PMID: 38012344 DOI: 10.1038/s41589-023-01489-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/17/2023] [Indexed: 11/29/2023]
Abstract
Bacteria can be programmed to create engineered living materials (ELMs) with self-healing and evolvable functionalities. However, further development of ELMs is greatly hampered by the lack of engineerable nonpathogenic chassis and corresponding programmable endogenous biopolymers. Here, we describe a technological workflow for facilitating ELMs design by rationally integrating bioinformatics, structural biology and synthetic biology technologies. We first develop bioinformatics software, termed Bacteria Biopolymer Sniffer (BBSniffer), that allows fast mining of biopolymers and biopolymer-producing bacteria of interest. As a proof-of-principle study, using existing pathogenic pilus as input, we identify the covalently linked pili (CLP) biosynthetic gene cluster in the industrial workhorse Corynebacterium glutamicum. Genetic manipulation and structural characterization reveal the molecular mechanism of the CLP assembly, ultimately enabling a type of programmable pili for ELM design. Finally, engineering of the CLP-enabled living materials transforms cellulosic biomass into lycopene by coupling the extracellular and intracellular bioconversion ability.
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Affiliation(s)
- Yuanyuan Huang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China
| | - Yanfei Wu
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Han Hu
- Shenzhen Xbiome Biotech Co. Ltd, Shenzhen, China
| | | | - Jie Wang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Siyu Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Yanyi Wang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jicong Zhang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yue Yin
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Shengkun Dai
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Wenjuan Zhao
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Bolin An
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jiahua Pu
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yaomin Wang
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
| | - Nan Li
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jiahai Zhou
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China.
| | - Yan Tan
- Shenzhen Xbiome Biotech Co. Ltd, Shenzhen, China.
| | - Chao Zhong
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- Center for Materials Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- Faculty of Synthetic Biology, Shenzhen Institute of Advanced Technology, Shenzhen, China.
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30
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Hu Y, Zhang Z, Mao Q, Zhang X, Hao A, Xun Y, Wang Y, Han L, Zhan W, Liu Q, Yin Y, Peng C, Moresco EMY, Chen Z, Beutler B, Sun L. Dynamic molecular architecture and substrate recruitment of cullin3-RING E3 ligase CRL3 KBTBD2. Nat Struct Mol Biol 2024; 31:336-350. [PMID: 38332366 DOI: 10.1038/s41594-023-01182-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 11/16/2023] [Indexed: 02/10/2024]
Abstract
Phosphatidylinositol 3-kinase α, a heterodimer of catalytic p110α and one of five regulatory subunits, mediates insulin- and insulin like growth factor-signaling and, frequently, oncogenesis. Cellular levels of the regulatory p85α subunit are tightly controlled by regulated proteasomal degradation. In adipose tissue and growth plates, failure of K48-linked p85α ubiquitination causes diabetes, lipodystrophy and dwarfism in mice, as in humans with SHORT syndrome. Here we elucidated the structures of the key ubiquitin ligase complexes regulating p85α availability. Specificity is provided by the substrate receptor KBTBD2, which recruits p85α to the cullin3-RING E3 ubiquitin ligase (CRL3). CRL3KBTBD2 forms multimers, which disassemble into dimers upon substrate binding (CRL3KBTBD2-p85α) and/or neddylation by the activator NEDD8 (CRL3KBTBD2~N8), leading to p85α ubiquitination and degradation. Deactivation involves dissociation of NEDD8 mediated by the COP9 signalosome and displacement of KBTBD2 by the inhibitor CAND1. The hereby identified structural basis of p85α regulation opens the way to better understanding disturbances of glucose regulation, growth and cancer.
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Affiliation(s)
- Yuxia Hu
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Zhao Zhang
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Division of Endocrinology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Qiyu Mao
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xiang Zhang
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Aihua Hao
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yu Xun
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Division of Endocrinology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yeda Wang
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Lin Han
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Wuqiang Zhan
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Qianying Liu
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Yue Yin
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, China
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, China
| | - Eva Marie Y Moresco
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhenguo Chen
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Bruce Beutler
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX, USA.
| | - Lei Sun
- Shanghai Fifth People's Hospital, Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Key Laboratory of Medical Epigenetics and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
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31
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Yuan T, Wang Y, Jin Y, Yang H, Xu S, Zhang H, Chen Q, Li N, Ma X, Song H, Peng C, Geng Z, Dong J, Duan G, Sun Q, Yang Y, Yang F, Huang Z. Coupling of Slack and Na V1.6 sensitizes Slack to quinidine blockade and guides anti-seizure strategy development. eLife 2024; 12:RP87559. [PMID: 38289338 PMCID: PMC10942592 DOI: 10.7554/elife.87559] [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] [Indexed: 02/01/2024] Open
Abstract
Quinidine has been used as an anticonvulsant to treat patients with KCNT1-related epilepsy by targeting gain-of-function KCNT1 pathogenic mutant variants. However, the detailed mechanism underlying quinidine's blockade against KCNT1 (Slack) remains elusive. Here, we report a functional and physical coupling of the voltage-gated sodium channel NaV1.6 and Slack. NaV1.6 binds to and highly sensitizes Slack to quinidine blockade. Homozygous knockout of NaV1.6 reduces the sensitivity of native sodium-activated potassium currents to quinidine blockade. NaV1.6-mediated sensitization requires the involvement of NaV1.6's N- and C-termini binding to Slack's C-terminus and is enhanced by transient sodium influx through NaV1.6. Moreover, disrupting the Slack-NaV1.6 interaction by viral expression of Slack's C-terminus can protect against SlackG269S-induced seizures in mice. These insights about a Slack-NaV1.6 complex challenge the traditional view of 'Slack as an isolated target' for anti-epileptic drug discovery efforts and can guide the development of innovative therapeutic strategies for KCNT1-related epilepsy.
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Affiliation(s)
- Tian Yuan
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Yifan Wang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Yuchen Jin
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Hui Yang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Shuai Xu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Heng Zhang
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang UniversityZhejiangChina
| | - Qian Chen
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Na Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Xinyue Ma
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Huifang Song
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Chao Peng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Ze Geng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Jie Dong
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Guifang Duan
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Qi Sun
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
| | - Yang Yang
- Department of Medicinal Chemistry and Molecular Pharmacology, College of Pharmacy, Purdue UniversityWest LafayetteUnited States
| | - Fan Yang
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang UniversityZhejiangChina
- Department of Biophysics, Kidney Disease Center of the First Affiliated Hospital, Zhejiang University School of Medicine, HangzhouZhejiangChina
| | - Zhuo Huang
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University Health Science CenterBeijingChina
- IDG/McGovern Institute for Brain Research, Peking UniversityBeijingChina
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32
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Sun W, Zhang Q, Zhang X, Tran NH, Ziaur Rahman M, Chen Z, Peng C, Ma J, Li M, Xin L, Shan B. Author Correction: Glycopeptide database search and de novo sequencing with PEAKS GlycanFinder enable highly sensitive glycoproteomics. Nat Commun 2024; 15:701. [PMID: 38267455 PMCID: PMC10808325 DOI: 10.1038/s41467-024-45153-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024] Open
Affiliation(s)
- Weiping Sun
- Bioinformatics Solutions Inc., Waterloo, ON, Canada
| | - Qianqiu Zhang
- David R. Cheriton School of Computer Science, University of Waterloo, Waterloo, ON, Canada
| | - Xiyue Zhang
- Bioinformatics Solutions Inc., Waterloo, ON, Canada
| | - Ngoc Hieu Tran
- Bioinformatics Solutions Inc., Waterloo, ON, Canada
- David R. Cheriton School of Computer Science, University of Waterloo, Waterloo, ON, Canada
| | | | - Zheng Chen
- Bioinformatics Solutions Inc., Waterloo, ON, Canada
| | - Chao Peng
- BaizhenBio Inc., Wuhan, China
- Wuhan BioBank, Wuhan, China
| | - Jun Ma
- Bioinformatics Solutions Inc., Waterloo, ON, Canada
| | - Ming Li
- David R. Cheriton School of Computer Science, University of Waterloo, Waterloo, ON, Canada.
- Henan Academy of Sciences, Zhengzhou, Henan, China.
| | - Lei Xin
- Bioinformatics Solutions Inc., Waterloo, ON, Canada.
| | - Baozhen Shan
- Bioinformatics Solutions Inc., Waterloo, ON, Canada.
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33
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Peng C, Zhao Y, Li F, Guo TZ, Wang XD, Wang BY, Li J, Zhang HR, Yang YF, Liu QG, Ren XL, Yang XY. Aneurysmal Subarachnoid Hemorrhage and Sex Differences: Analysis of Epidemiology, Outcomes, and Risk Factors. Neurocrit Care 2024:10.1007/s12028-023-01929-5. [PMID: 38253923 DOI: 10.1007/s12028-023-01929-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND The differences in outcomes after aneurysmal subarachnoid hemorrhage (aSAH) between the sexes have not been concretely determined. This study aimed to evaluate the differences in epidemiology, outcomes, and risk factors between male and female patients with aSAH. METHODS We performed a multicenter, retrospective study of patients with aSAH from 2017 to 2020. We investigated the epidemiological differences between the two sexes. Propensity score matching (PSM) was used to compare short-term outcomes between the sexes. Binary logarithmic regression was performed to investigate the odds ratio (OR) for dependent survival in patients of different sexes. RESULTS A total of 5,407 consecutive patients with aSAH were included in this study, and the female-to-male ratio was 1.8:1. The peak incidence of aSAH occurred in the 6th and 7th decades in males and females, respectively. There were more female patients with internal carotid artery or posterior communicating artery aneurysms (53.2%), and there were more male patients with anterior cerebral artery or anterior communicating artery aneurysms (43.2%). The incidence of multiple aneurysms was greater in female patients (21.5% vs. 14.2%, P < 0.001). There was no significant difference in outcomes before and after PSM at discharge. The dependent survival risk was related only to the clinical condition on admission in women. In addition, age > 50 years (OR 1.88, 95% confidence interval 1.17-3.02; P = 0.01) and hypertension (OR 1.81, 95% confidence interval 1.25-2.61; P = 0.002) were also risk factors for male patients. CONCLUSIONS There were more female patients with aneurysms than male patients in this study. Most aneurysm locations were different between the two groups. There was no significant difference in discharge outcomes before and after PSM. The risk factors for dependent survival were different between female and male patients.
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Affiliation(s)
- Chao Peng
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Yan Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Fan Li
- Department of Neurosurgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi Province, People's Republic of China
| | - Tie-Zhu Guo
- Department of Neurosurgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi Province, People's Republic of China
| | - Xiang-Dong Wang
- Department of Neurosurgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi Province, People's Republic of China
| | - Bang-Yue Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Jian Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Heng-Rui Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Yi-Fan Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Qing-Guo Liu
- Department of Neurosurgery, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi Province, People's Republic of China
| | - Xin-Liang Ren
- Department of Neurosurgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi Province, People's Republic of China
| | - Xin-Yu Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, People's Republic of China.
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Sun H, Wang H, Dong S, Dai S, Li X, Zhang X, Deng L, Liu K, Liu F, Tan H, Xue K, Peng C, Wang J, Li Y, Yu A, Zhu H, Zhan Y. Optoelectronic synapses based on a triple cation perovskite and Al/MoO 3 interface for neuromorphic information processing. Nanoscale Adv 2024; 6:559-569. [PMID: 38235083 PMCID: PMC10790979 DOI: 10.1039/d3na00677h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 12/06/2023] [Indexed: 01/19/2024]
Abstract
Optoelectronic synaptic transistors are attractive for applications in next-generation brain-like computation systems, especially for their visible-light operation and in-sensor computing capabilities. However, from a material perspective, it is difficult to build a device that meets expectations in terms of both its functions and power consumption, prompting the call for greater innovation in materials and device construction. In this study, we innovatively combined a novel perovskite carrier supply layer with an Al/MoO3 interface carrier regulatory layer to fabricate optoelectronic synaptic devices, namely Al/MoO3/CsFAMA/ITO transistors. The device could mimic a variety of biological synaptic functions and required ultralow-power consumption during operation with an ultrafast speed of >0.1 μs under an optical stimulus of about 3 fJ, which is equivalent to biological synapses. Moreover, Pavlovian conditioning and visual perception tasks could be implemented using the spike-number-dependent plasticity (SNDP) and spike-rate-dependent plasticity (SRDP). This study suggests that the proposed CsFAMA synapse with an Al/MoO3 interface has the potential for ultralow-power neuromorphic information processing.
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Affiliation(s)
- Haoliang Sun
- Peng Cheng Laboratory Shenzhen 518055 China
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Haoliang Wang
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | | | - Shijie Dai
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Xiaoguo Li
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Xin Zhang
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Liangliang Deng
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Kai Liu
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Fengcai Liu
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Hua Tan
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Kun Xue
- Peng Cheng Laboratory Shenzhen 518055 China
| | - Chao Peng
- Peng Cheng Laboratory Shenzhen 518055 China
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronics and Frontiers Science Center for Nano-optoelectronics, Peking University Beijing 100080 China
| | - Jiao Wang
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Yi Li
- Peng Cheng Laboratory Shenzhen 518055 China
- Shanghai Engineering Research Center for Broadband Technologies and Applications Shanghai 200436 China
| | - Anran Yu
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
| | - Hongyi Zhu
- Peng Cheng Laboratory Shenzhen 518055 China
- Shanghai Engineering Research Center for Broadband Technologies and Applications Shanghai 200436 China
| | - Yiqiang Zhan
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University Shanghai 200433 China
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Deng EZ, Fan YZ, Wang HP, Li Y, Peng C, Liu J. Engineering a Z-Scheme Heterostructure on ZnIn 2S 4@NH 2-MIL-125 Composites for Boosting the Photocatalytic Performance. Inorg Chem 2024; 63:1449-1461. [PMID: 38221879 DOI: 10.1021/acs.inorgchem.3c03968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Constructing a Z-scheme heterostructure on a metal-organic framework (MOF) composite with an explicit charge transfer mechanism at the interface is considered to be an effective strategy for improving the photocatalytic performance of MOFs. Herein, an internal electric field (IEF)-induced Z-scheme heterostructure on the ZnIn2S4@NH2-MIL-125 composite is designed and fabricated by a facile electrostatic self-assembly process. Systematic investigations reveal that close interfacial contact and difference in work function between NH2-MIL-125 and ZnIn2S4 enable the formation of the IEF, which drives the Z-scheme charge transfer as revealed by the in situ irradiated X-ray photoelectron spectroscopy (ISI-XPS), photoirradiated Kelvin probe force microscope (KPFM) measurement, electron paramagnetic resonance (EPR) radical trapping experiment, as well as density functional theory (DFT) calculation; meanwhile, directions of the interfacial IEFs are determined. Benefiting from the unique merit of IEF-induced Z-scheme charge transfer, the optimized ZnIn2S4@NH2-MIL-125 composite exhibits significantly enhanced photocatalytic activity for the photoreduction of 4-nitroaniline (4-NA) to p-phenylenediamine (PPD) under visible light irradiation. This work not only provides in-depth insights for charge transfer in the IEF-induced Z scheme heterostructure but also affords useful inspirations on designing the Z-scheme MOF composite to boost the photocatalytic performance.
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Affiliation(s)
- En-Ze Deng
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen 529020, P. R. China
- Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, P. R. China
| | - Yan-Zhong Fan
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Hai-Ping Wang
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen 529020, P. R. China
| | - Yuying Li
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen 529020, P. R. China
| | - Chao Peng
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen 529020, P. R. China
- Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, P. R. China
| | - Jiewei Liu
- School of Environmental and Chemical Engineering, Jiangmen Key Laboratory of Synthetic Chemistry and Cleaner Production, Wuyi University, Jiangmen 529020, P. R. China
- Institute of Carbon Peaking and Carbon Neutralization, Wuyi University, Jiangmen 529020, P. R. China
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Lu R, Zhu J, Li X, Zeng C, Huang Y, Peng C, Zhou Y, Xue Q. ERβ-activated LINC01018 promotes endometriosis development by regulating the CDC25C/CDK1/CyclinB1 pathway. J Genet Genomics 2024:S1673-8527(24)00004-3. [PMID: 38224945 DOI: 10.1016/j.jgg.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/23/2023] [Accepted: 12/29/2023] [Indexed: 01/17/2024]
Abstract
Endometriosis refers to as an estrogen-dependent disease. Estrogen receptor β (ERβ), the main estrogen receptor subtype which is encoded by the estrogen receptor 2 (ESR2) gene, can mediate the action of estrogen in endometriosis. Although selective estrogen receptor modulators can target the ERβ, they are not specific due to the wide distribution of ERβ. Recently, long noncoding RNAs have been implicated in endometriosis. Therefore, we aim to explore and validate the downstream regulatory mechanism of ERβ, and to investigate the potential role of long intergenic noncoding RNA 1018 (LINC01018) as a nonhormonal treatment for endometriosis. Our study demonstrates that the expression levels of ESR2 and LINC01018 are increased in ectopic endometrial tissues and reveals a significant positive correlation between the ESR2 and LINC01018 expression. Mechanistically, ERβ directly binds to an estrogen response element located in the LINC01018 promoter region and activates LINC01018 transcription. Functionally, ERβ can regulate the CDC25C/CDK1/CyclinB1 pathway and promote ectopic endometrial stromal cell proliferation via LINC01018 in vitro. Consistent with these findings, the knockdown of LINC01018 inhibits endometriotic lesion proliferation in vivo. In summary, our study demonstrates that the ERβ/LINC01018/CDC25C/CDK1/CyclinB1 signaling axis regulates endometriosis progression.
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Affiliation(s)
- Ruihui Lu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Jingwen Zhu
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Xin Li
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Cheng Zeng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Yan Huang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Chao Peng
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Yingfang Zhou
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Qing Xue
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China.
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Liu J, Li X, Chen J, Zhang X, Guo J, Gu J, Mei C, Xiao Y, Peng C, Liu J, Hu X, Zhang K, Li D, Zhou B. Correction to "Arsenic-Loaded Biomimetic Iron Oxide Nanoparticles for Enhanced Ferroptosis-Inducing Therapy of Hepatocellular Carcinoma". ACS Appl Mater Interfaces 2024; 16:1954. [PMID: 38155104 DOI: 10.1021/acsami.3c18601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
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Tian S, Peng C, Xing H, Xue Y, Li J, Wang E. Boosting Photon Emission from the Chemiluminescence of Luminol Based on Host-Guest Recognition for the Determination of Dopamine. Anal Chem 2024; 96:514-521. [PMID: 38145394 DOI: 10.1021/acs.analchem.3c04645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
Modulating the photon emission of the luminophore for boosting chemiluminescence (CL) response is very crucial for the construction of highly sensitive sensors via the introduction of functionalized materials. Herein, the integration of the emitter and coreactant accelerator into one entity is realized by simply assembling cucurbit[7]uril (CB[7]) on the surface of gold nanoparticles (AuNPs) through simple assembly via a Au-O bond. The loaded CB[7] on the AuNPs improves their catalytic capacity for the generation of hydroxyl radicals(•OH). Moreover, the host-guest recognition interaction between luminol and CB[7] enables the capture of luminol on AuNPs efficiently. Also, the intramolecular electron-transfer reaction between the luminol and •OH enables the CL response more effectively in the entity, which greatly boosts photon emission ca 100 folds compared with the individual luminol/H2O2. The host-guest recognition between luminol and CB[7] is revealed by Fourier transform infrared spectroscopy, electrochemical, and thermogravimetric characterization. Moreover, the proposed CL system is successfully used for the sensitive and selective determination of dopamine (DA) based on a synergistic quenching mechanism including the competition quenching and radical-scavenging effect from DA. The present amplified strategy by integrating recognized and amplified elements within one entity simplifies the sensing process and holds great potential for sensitive analysis based on the self-enhanced strategies.
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Affiliation(s)
- Sipeng Tian
- College of Chemistry, Jilin University, Changchun, Jilin 130012, China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Chao Peng
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Huanhuan Xing
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou, Jiangsu 215011, China
| | - Yuan Xue
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Jing Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Erkang Wang
- College of Chemistry, Jilin University, Changchun, Jilin 130012, China
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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Peng C, Li ZL, Xiang Y, Wang XC, Wang LT, Zhang S, Zhai CZ, Chen Y, Yang FM, Zhai TY. [Characteristics and Source Apportionment of Carbonaceous Aerosols in the Typical Urban Areas in Chongqing During Winter]. Huan Jing Ke Xue 2024; 45:48-60. [PMID: 38216457 DOI: 10.13227/j.hjkx.202302166] [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] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
To investigate the characteristics, source apportionment, and potential source areas of carbonaceous aerosols in Chongqing during winter, PM2.5 samples were collected from January 2021 to February 2021 in the urban areas of Wanzhou (WZ), Yubei (YB), and Shuangqiao (SQ). The results showed that the average mass concentrations of PM2.5, OC, and EC in SQ were (72.6 ±33.3), (18.2 ±8.2), and (4.4 ±1.7) μg·m-3, respectively, higher than those in WZ[(67.2 ±30.3), (17.2 ±7.4), and (5.1 ±2.4) μg·m-3] and YB[(63.4 ±25.7), (15.4 ±6.3), and (4.2 ±1.9) μg·m-3]. Compared with that during the clear period, the concentration and fraction of EC in total carbon increased by 103.0% and 8.1%, respectively, in WZ compared to that in other areas during pollution period, whereas the OC/EC ratio was decreased significantly (-10.5%), indicating that the primary emission of carbonaceous aerosols increased significantly during the pollution period. The average mass concentrations of secondary organic carbon (SOC) in SQ and YB were (7.7 ±4.8) μg·m-3 and (6.9 ±2.8) μg·m-3 significantly higher, respectively, than that in WZ[(4.5 ±1.9) μg·m-3] during the campaign. This indicated that the secondary transformation had a greater influence on the carbonaceous aerosols in SQ and YB than that in WZ. Furthermore, in contrast to that in WZ, the ratios of SOC/OC were increased with the increase in PM2.5 concentrations, and significant correlations between SOC concentration and aerosol water content, NO2 concentration, and the value of NOR were observed in SQ and YB (P < 0.01), indicating that the increasing of carbonaceous aerosol concentrations might be mainly driven by the SOC with -NO2 groups produced by aqueous chemical reactions during winter in SQ and YB. The positive definite matrix factor (PMF) results in these urban areas showed that the contribution of biomass/coal combustion source in WZ (47.4%) was significantly higher than that in YB (34.2%) and SQ (38.1%), whereas the gasoline motor vehicle emission and secondary transformation impacts were more significant in YB. The results of the concentration weighted trajectory (CWT) showed that the potential sources of carbonaceous aerosols were mainly the local and northeastern parts of these urban areas (such as Changshou).
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Affiliation(s)
- Chao Peng
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Zhen-Liang Li
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Ying Xiang
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Xiao-Chen Wang
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Ling-Tao Wang
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Sheng Zhang
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Chong-Zhi Zhai
- Chongqing Academy of Eco-Environmental Science, Chongqing 401147, China
- Chongqing Branch Academy of Chinese Research Academy of Environmental Sciences, Chongqing 401147, China
- Key Laboratory for Urban Atmospheric Environment Integrated Observation & Pollution Prevention and Control of Chongqing, Chongqing 401147, China
| | - Yang Chen
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Fu-Mo Yang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Tian-Yu Zhai
- College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
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Chen ML, Li ZL, Peng C, Deng Y, Song DL, Tan QW. [Analysis of Influencing Factors of Ozone Pollution Difference Between Chengdu and Chongqing in August 2022]. Huan Jing Ke Xue 2024; 45:61-70. [PMID: 38216458 DOI: 10.13227/j.hjkx.202301019] [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] [Subscribe] [Scholar Register] [Indexed: 01/14/2024]
Abstract
In August 2022, Chengdu and Chongqing showed significant differences in ozone (O3) pollution. Chengdu had O3 pollution days for 20 days, whereas Chongqing had no O3 pollution days. In this study, we analyzed the influencing factors of this difference from the emission level of precursors and meteorological conditions. The results showed that:① the total mixing ratio of 52 VOCs (volatile organic compounds) (including 26 alkanes, 16 aromatics, and 10 alkenes) in Chengdu (18.8×10-9) was 2.8 times that of Chongqing (6.6×10-9), and the total O3 formation potential (OFP) (51.2×10-9) was 2.0 times that of Chongqing (25.0×10-9). The·OH radical loss rate (L·OH) (3.9 s-1) was 1.7 times that of Chongqing (2.3 s-1). The top three OFP in Chengdu were ethylene, m/p-xylene, and isoprene, and those in Chongqing were isoprene, ethylene, and propylene. The contribution rate of alkenes to O3 in Chongqing was 60.7%, whereas the OFP of alkenes and aromatics in Chengdu were 1.6 times and 2.9 times that in Chongqing. In conclusion, the total mixing ratio of VOCs, atmospheric photochemical activity, and O3 formation potential of Chengdu were higher than those of Chongqing. ② Isoprene was ranked first place in L·OH in both Chengdu and Chongqing, indicating that the contribution of biogenic sources to O3 pollution in August was significant. However, the biogenic source emission activity was in response to temperature. From August 14 to 24, the high temperature in Chongqing (38.3℃) decreased biogenic source emission activity, whereas the temperature in Chengdu (34.9℃) increased the biogenic sources emission activity. ③ The horizontal and vertical atmospheric diffusion conditions of Chongqing were better than those of Chengdu, and Chengdu was affected by regional pollution transmission.
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Affiliation(s)
- Mu-Lan Chen
- Key Laboratory for Urban Atmospheric Environment Integrated Observation&Pollution Prevention and Control of Chongqing, Chongqing Research Academy of Eco-Environmental Sciences, Chongqing 401147, China
| | - Zhen-Liang Li
- Key Laboratory for Urban Atmospheric Environment Integrated Observation&Pollution Prevention and Control of Chongqing, Chongqing Research Academy of Eco-Environmental Sciences, Chongqing 401147, China
| | - Chao Peng
- Key Laboratory for Urban Atmospheric Environment Integrated Observation&Pollution Prevention and Control of Chongqing, Chongqing Research Academy of Eco-Environmental Sciences, Chongqing 401147, China
| | - Ye Deng
- Chengdu Key Laboratory of Atmospheric Research, Chengdu Academy of Environmental Sciences, Chengdu 610072, China
| | - Dan-Lin Song
- Chengdu Key Laboratory of Atmospheric Research, Chengdu Academy of Environmental Sciences, Chengdu 610072, China
| | - Qin-Wen Tan
- Chengdu Key Laboratory of Atmospheric Research, Chengdu Academy of Environmental Sciences, Chengdu 610072, China
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Li C, Hui D, Wu F, Xia Y, Shi F, Yang M, Zhang J, Peng C, Feng J, Li C. Automatic diagnosis of Parkinson's disease using artificial intelligence base on routine T1-weighted MRI. Front Med (Lausanne) 2024; 10:1303501. [PMID: 38249966 PMCID: PMC10797132 DOI: 10.3389/fmed.2023.1303501] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/08/2023] [Indexed: 01/23/2024] Open
Abstract
Background Parkinson's disease (PD) is the second most common neurodegenerative disease. An objective diagnosis method is urgently needed in clinical practice. In this study, deep learning and radiomics techniques were studied to automatically diagnose PD from healthy controls (HCs). Methods 155 PD patients and 154 HCs were randomly divided into a training set (246 patients) and a testing set (63 patients). The brain subregions identification and segmentation were automatically performed with a VB-net, and radiomics features of billateral thalamus, caudatum, putamen and pallidum were extracted. Five independent machine learning classifiers [Support Vector Machine (SVM), Stochastic gradient descent (SGD), random forest (RF), quadratic discriminant analysis (QDA) and decision tree (DT)] were trained on the training set, and validated on the testing. Delong test was used to compare the performance of different models. Results Our VB-net could automatically identify and segment the brain into 109 regions. 2,264 radiomics features were automatically extracted from the billateral thalamus, caudatum, putamen or pallidum of each patient. After four step of features dimensionality reduction, Delong tests showed that the SVM model based on combined features had the best performance, with AUCs of 0.988 (95% CI: 0.979 ~ 0.998, specificity = 91.1%, sensitivity =100%, accuracy = 89.4% and precision = 88.2%) and 0.976 (95% CI: 0.942 ~ 1.000, specificity = 100%, sensitivity = 87.1%, accuracy = 93.5% and precision = 88.6%) in the training set and testing set, respectively. Decision curve analysis showed that the clinical benefit of the line graph model was high. Conclusion The SVM model based on combined features could be used to diagnose PD with high accuracy. Our fully automatic model could rapidly process the MRI data and distinguish PD and HCs in one minute. It greatly improved the diagnostic efficiency and has a great potential value in clinical practice to help the early diagnosis of PD.
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Affiliation(s)
- Chang Li
- Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China
| | - Dongming Hui
- Department of Radiology, Chongqing Western Hospital, Chongqing, China
| | - Faqi Wu
- Department of Medical Service, Yanzhuang Central Hospital of Gangcheng District, Chongqing, China
| | - Yuwei Xia
- Department of Research and Development, Shanghai United Imaging Intelligence, Co., Ltd. Shanghai, China
| | - Feng Shi
- Department of Research and Development, Shanghai United Imaging Intelligence, Co., Ltd. Shanghai, China
| | - Mingguang Yang
- Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China
| | - Jinrui Zhang
- Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China
| | - Chao Peng
- Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China
| | - Junbang Feng
- Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China
| | - Chuanming Li
- Bioengineering College of Chongqing University, Chongqing University Central Hospital (Chongqing Emergency Medical Center), Chongqing, China
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Wang Z, Li J, Peng C, Li B, Shen Q, Chen Y. Physicochemical Quantitative Analysis of the Oil-Water Interface as Affected by the Mutual Interactions between Pea Protein Isolate and Mono- and Diglycerides. Foods 2024; 13:176. [PMID: 38201204 PMCID: PMC10779286 DOI: 10.3390/foods13010176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/26/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
As a commercially available ingredient, the mono- and diglycerides (MDG) were widely used in a plant protein-based emulsion to provide effective, functional, emulsifying properties. The simultaneous addition of the MDG and pea protein isolate (PPI) was investigated by the methods of interfacial rheology and quantitative protein proteomics. The physicochemical quantitative analysis of the oil-water interface revealed an interfacial stability mechanism for the protein adsorption layer. For a low MDG concentration, the interfacial quantities of vicilin and albumin were increased, which could be attributed to the adsorption rate. For a high MDG concentration, both vicilin and albumin were displaced by MDG and desorbed from the interface, while legumin was more difficult to displace due to its slow adsorption and the complex structure of protein molecules. The protein molecules with the structural rearrangement interacted with MDG, exhibiting potential effects on the interfacial film structure. Combined with some nanotechnologies, the new comprehension of protein-emulsifier interactions may promote food delivery systems. The research aims to develop an in-depth analysis of interfacial proteins, and provide more innovative and tailored functionalities for the application of the plant protein emulsion.
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Affiliation(s)
- Ziyan Wang
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products and College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China;
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
| | - Jingwen Li
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (J.L.); (C.P.)
| | - Chao Peng
- National Facility for Protein Science in Shanghai, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China; (J.L.); (C.P.)
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Qian Shen
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products and College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China;
| | - Yijie Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
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Li J, Peng C, Mao A, Zhong M, Hu Z. An overview of microbial enzymatic approaches for pectin degradation. Int J Biol Macromol 2024; 254:127804. [PMID: 37913880 DOI: 10.1016/j.ijbiomac.2023.127804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/21/2023] [Accepted: 10/29/2023] [Indexed: 11/03/2023]
Abstract
Pectin, a complex natural macromolecule present in primary cell walls, exhibits high structural diversity. Pectin is composed of a main chain, which contains a high amount of partly methyl-esterified galacturonic acid (GalA), and numerous types of side chains that contain almost 17 different monosaccharides and over 20 different linkages. Due to this peculiar structure, pectin exhibits special physicochemical properties and a variety of bioactivities. For example, pectin exhibits strong bioactivity only in a low molecular weight range. Many different degrading enzymes, including hydrolases, lyases and esterases, are needed to depolymerize pectin due to its structural complexity. Pectin degradation involves polygalacturonases/rhamnogalacturonases and pectate/pectin lyases, which attack the linkages in the backbone via hydrolytic and β-elimination modes, respectively. Pectin methyl/acetyl esterases involved in the de-esterification of pectin also play crucial roles. Many α-L-rhamnohydrolases, unsaturated rhamnogalacturonyl hydrolases, arabinanases and galactanases also contribute to heterogeneous pectin degradation. Although numerous microbial pectin-degrading enzymes have been described, the mechanisms involved in the coordinated degradation of pectin through these enzymes remain unclear. In recent years, the degradation of pectin by Bacteroides has received increasing attention, as Bacteroides species contain a unique genetic structure, polysaccharide utilization loci (PULs). The specific PULs of pectin degradation in Bacteroides species are a new field to study pectin metabolism in gut microbiota. This paper reviews the scientific information available on pectin structural characteristics, pectin-degrading enzymes, and PULs for the specific degradation of pectin.
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Affiliation(s)
- Jin Li
- College of Life Sciences, China West Normal University, Nanchong 637002, China; Department of Biology, College of Science, Shantou University, Shantou 515063, China.
| | - Chao Peng
- College of Life Sciences, China West Normal University, Nanchong 637002, China
| | - Aihua Mao
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Mingqi Zhong
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Zhong Hu
- Department of Biology, College of Science, Shantou University, Shantou 515063, China.
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Wen L, Shao M, Li Y, Zhang Y, Peng C, Yu H, Zhang K. Unveiling the hypoxia-induced mitophagy process through two-channel real-time imaging of NTR and viscosity under the same excitation. Talanta 2024; 266:125028. [PMID: 37549565 DOI: 10.1016/j.talanta.2023.125028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/30/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
Mitophagy is an essential physiological process that eliminates damaged mitochondria via lysosomes. It is reported that hypoxia, inflammatory stimuli or other stress conditions could lead to mitochondrial damage and mitochondrial dysfunction, which induces the process of mitophagy. Herein, we report a novel fluorescent probe PC-NTR for imaging hypoxia-induced mitophagy by monitoring the change of nitroreductase and viscosity simultaneously. To our delight, PC-NTR could respond simultaneously to nitroreductase and viscosity at different fluorescence channels with no mutual interference under the same excitation wavelength. The fluorescence emission around 535 nm was enhanced dramatically after addition of nitroreductase while the fluorescence emission around 635 nm heightened as the viscosity increased. The probe would be able to selectively targeting of mitochondria in cells because of the positively charged pyridine salt structure of PC-NTR. The probe was successfully applied to assess the different levels of hypoxia and real-time imaging of mitochondrial autophagy in live cells. More importantly, using dual channel imaging, PC-NTR could be used to distinguish cancer cells from normal cells and was successfully applied to imaging experiments in HeLa-derived tumor-bearing nude mice. Therefore, PC-NTR would be an important molecular tool for hypoxia imaging and detecting solid tumors in vivo.
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Affiliation(s)
- Lei Wen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Mengqi Shao
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Yinhui Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China.
| | - Yanjun Zhang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China
| | - Chao Peng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
| | - Huan Yu
- Anhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
| | - Kai Zhang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China.
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45
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Qi X, Peng C, Fu P, Zhu A, Jiao W. Correlation between physical activity and adolescent idiopathic scoliosis: a systematic review. BMC Musculoskelet Disord 2023; 24:978. [PMID: 38115016 PMCID: PMC10729348 DOI: 10.1186/s12891-023-07114-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND The multifactorial aetiology of scoliosis is well known. Physical activity is considered both a treatment and causative factor for idiopathic scoliosis; however, evidence for a causal relationship between physical activity levels and idiopathic scoliosis in adolescents is conflicting. Therefore, we aimed to summarise the current evidence regarding the association between adolescent idiopathic scoliosis and physical activity and further to assess whether the relationship is dose dependent. METHODS PubMed, Cochrane, Scopus, and Web of Science databases were searched from 1991 to July 2022 using the following main keywords: adolescent idiopathic scoliosis, physical activity, and risk factors, supplemented with manual searches, secondary citations, and reference searches. The quality of the included literature was evaluated using the Scale for Reporting Observational Studies in Enhanced Epidemiology guidelines. RESULTS Eight studies were included in this review, of which six reported an association between adolescent idiopathic scoliosis and physical activity levels and two reported no association. One British study reported reduced physical function early in life as a new risk factor for scoliosis onset. CONCLUSIONS Physical activity is strongly associated with adolescent idiopathic scoliosis. Physical activity should be encouraged as it plays an important role in the prevention of adolescent idiopathic scoliosis. Further research is needed to determine the dose-dependent relationship between physical activity and prevention of adolescent idiopathic scoliosis.
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Affiliation(s)
- Xiang Qi
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
- School of Physical Education, Taizhou University, Taizhou, China
| | - Chao Peng
- Department of Rehabilitation, The First Affliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Pinting Fu
- Department of Rehabilitation, Shanxi Acupuncture Hospital, Taiyuan, China
| | - Aiyuan Zhu
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Wei Jiao
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China.
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Peng C, Xu SR, Wang Y, Chen BY, Ma H, Zhang J, Zhou ZX. [Prediction models for respiratory event types in OSA patients based on hypoxic parameters]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:1219-1227. [PMID: 38044049 DOI: 10.3760/cma.j.cn112147-20230925-00197] [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: 12/05/2023]
Abstract
Objective: To analyze the hypoxic parameters in patients with obstructive sleep apnea (OSA), to explore the difference and association between different types of respiratory events and to construct predictive models for respiratory event types. Methods: Fifty patients [including 41 males and 9 females with age 18-74(45.72±13.39) years ] with OSA diagnosed by polysomnography (PSG) were selected for retrospective analysis, and all respiratory events with pulse oximetry (SpO2) desaturation in the recorded overnight data were divided into hypopnea group (Hyp, 3 316), obstructive apnea group (OA, 5 552), central apnea group (CA, 1 088) and mixed apnea group (MA, 1 369) according to the type of events, and all event records were exported separately from the PSG software as comma-separated variable (.csv) files, which were imported and analyzed using the in-house built Matlab software. A total of 13 hypoxic parameter differences were compared among the four groups, including minimum oxygen saturation of events (e-minSpO2), the depth of desaturation (ΔSpO2), the duration of desaturation and resaturation (DSpO2), the duration of desaturation (d.DSpO2), duration of resaturation (r.DSpO2), duration of SpO2<90% (T90), duration of SpO2<90% during desaturation (d.T90), duration of SpO2<90% during resaturation (r.T90), area under the curve of SpO2<90% (ST90), area under the curve of SpO2<90% during desaturation (d.ST90), area under the curve of SpO2<90% during resaturation (r.ST90), oxygen desaturation rate (ODR) and oxygen resaturation rate (ORR). Hyp model (H), OA model (O), CA model (C) and MA model (M) were constructed respectively; group differences for the different hypoxia parameters were assessed using single factor analysis and Kruskal-Wallis H test. For different categories of respiratory events, binary logistic regression was used to identify the variables included in the regression model. Receiver operating characteristic (ROC) curves were generated to assess and compare the sensitivity, specificity, positive predictive value and negative predictive value of the four models, thereby gauging the predictive precision of each model. Results: ΔSpO2, ODR, ORR, T90, d.T90, r.T90, ST90, d.ST90 and r.ST90 for each type of respiratory events showed MA>OA>CA>Hyp, and e-minSpO2 showed MA
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Affiliation(s)
- C Peng
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University Gene Hospital, Tianjin 300052, China
| | - S R Xu
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University Gene Hospital, Tianjin 300052, China
| | - Y Wang
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University Gene Hospital, Tianjin 300052, China
| | - B Y Chen
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University Gene Hospital, Tianjin 300052, China
| | - H Ma
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University Gene Hospital, Tianjin 300052, China
| | - J Zhang
- Biomedical Engineering, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Z X Zhou
- Biomedical Engineering, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
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Wu Q, Peng C, Liu Y, Li D, Zhang H. A method for determining the optimum supporting opportunity of roadway based on energy dissipation. PLoS One 2023; 18:e0295533. [PMID: 38060552 PMCID: PMC10703231 DOI: 10.1371/journal.pone.0295533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/21/2023] [Indexed: 12/18/2023] Open
Abstract
The time and space of the support structure applying is related to the overall stability of the roadway after excavation directly. Designed twenty-four groups of roadway support schemes with time and space dimensions, and studied the stability characteristics of roadway in different schemes by using Fast Lagrangian Analysis of Continua in Three Dimensions. The main conclusions are as follows: the influence of energy dissipation (time) and support position (space) on the stability of the roadway is not a linear relationship, and supporting at the appropriate opportunity can be beneficial. Established the "displacement-dissipation energy" curve, founding that there is an obvious "jump" phenomenon in the dissipation energy of surrounding rock during the process of gradually increasing displacement. A novel method for determining the optimum supporting opportunity of roadway based on energy dissipation was proposed, based on the above finding. This study can provide an original idea for the determination of roadway supporting opportunity.
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Affiliation(s)
- Qinzheng Wu
- Deep Mining Laboratory of Shandong Gold Group Co., Ltd. Laizhou, Yantai, China
| | - Chao Peng
- Deep Mining Laboratory of Shandong Gold Group Co., Ltd. Laizhou, Yantai, China
| | - Yang Liu
- Deep Mining Laboratory of Shandong Gold Group Co., Ltd. Laizhou, Yantai, China
| | - Danli Li
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, China
| | - Haoqin Zhang
- Deep Mining Laboratory of Shandong Gold Group Co., Ltd. Laizhou, Yantai, China
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48
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Liu D, Wan L, Peng C, Cen RX, Xu F. [Expressions of NLRP3, Caspase-1, and GSDMD in nasopharyngeal carcinoma tissue and association with recurrence and metastasis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:1215-1224. [PMID: 38186096 DOI: 10.3760/cma.j.cn115330-20231010-00134] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Objective: To investigate the expressions of Nod-like receptor protein 3 (NLRP3), cysteine-aspartic acid protease 1 (Caspase-1), and Gasdermin D (GSDMD) in nasopharyngeal carcinoma (NPC), and their relationships with the recurrence and metastasis of NPC. Methods: A retrospective study was conducted on 421 patients diagnosed with NPC between December 2014 and January 2020. The expressions of NLRP3, Caspase-1, and GSDMD in pathological specimens were examined with immunohistochemistry and multiplex immunofluorescence staining. Univariate and multivariate Cox regression analyses were applied to identify the factors influencing NPC recurrence and metastasis. In vitro experiments with NPC cell line HNE-2 were used to explore the functional mechanisms of NLRP3, Caspase-1, and GSDMD. Results: Multivariate Cox analysis revealed that tumor staging of Ⅲ-Ⅳ(HRrecurrence=2.74, 95%CIrecurrence: 1.61-4.65; HRmetastasis=1.90, 95%CImetastasis: 1.04-3.49) and pre-treatment plasma EBV-DNA levels≥1 500 copies/ml (HRrecurrence=1.91, 95%CIrecurrence: 1.13-3.23; HRmetastasis=2.07, 95%CImetastasis: 1.23-3.50)were independent risk factors for NPC recurrence and metastasis, while positive expression of NLRP3(HRrecurrence=0.17, 95%CIrecurrence: 0.08-0.35; HRmetastasis=0.30, 95%CImetastasis: 0.15-0.59), Caspase-1(HRrecurrence=0.32, 95%CIrecurrence: 0.18-0.59; HRmetastasis=0.43, 95%CImetastasis: 0.25-0.76), and GSDMD(HRrecurrence=0.48, 95%CIrecurrence: 0.25-0.91; HRmetastasis=0.96, 95%CImetastasis: 0.53-1.74) served as independent protective factors. Age (HR=1.02, 95%CI: 1.01-1.04) and intensity-modulated radiotherapy (HR=0.51, 95%CI: 0.30-0.88) were independent factors for NPC recurrence, whereas chemotherapy (HR=0.50, 95%CI: 0.29-0.88) acted as an independent protective factor for NPC metastasis (all P<0.05). NPC patients with positive expressions of the three proteins had higher locoregional recurrence-free survival, distant metastasis-free survival, and overall survival compared to those with negative expressions (all P<0.05). In vitro experiments revealed that the overexpression of NLRP3 activated the NLRP3/Caspase-1/GSDMD signaling pathway, as evidenced by Western Blot analysis. Enzyme-linked immunosorbent assay and scanning electron microscopy demonstrated that overexpression of NLRP3 promoted pyroptosis in HNE-2 cells. Cellular functional assays further confirmed that overexpression of NLRP3 significantly inhibited the proliferation, invasion, and migration of HNE-2 cells. Conclusion: Positive expressions of NLRP3, Caspase-1, and GSDMD serves as independent protective factors for recurrence and metastasis of NPC, potentially by promoting cell pyroptosis and thus inhibiting NPC cell proliferation, invasion, and migration.
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Affiliation(s)
- D Liu
- Department of Otorhinolaryngology,Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi 435000, China
| | - L Wan
- Department of Otorhinolaryngology,Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi 435000, China
| | - C Peng
- Department of Otorhinolaryngology, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - R X Cen
- Department of Otorhinolaryngology,Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi 435000, China
| | - F Xu
- Department of Otorhinolaryngology,Huangshi Central Hospital, Affiliated Hospital of Hubei Polytechnic University, Huangshi 435000, China
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Liang Z, Peng C, Shen J, Yuan J, Yang Y, Xue D, Zhu M, Liu J. Spontaneous Built-In Electric Field in C 3 N 4 -CoSe 2 Modified Multifunctional Separator with Accelerating Sulfur Evolution Kinetics and Li Deposition for Lithium-Sulfur Batteries. Small 2023:e2309717. [PMID: 38054621 DOI: 10.1002/smll.202309717] [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: 10/25/2023] [Revised: 11/20/2023] [Indexed: 12/07/2023]
Abstract
The discovery of the heterostructures that is combining two materials with different properties has brought new opportunities for the development of lithium sulfur batteries (LSBs). Here, C3 N4 -CoSe2 composite is elaborately designed and used as a functional coating on the LSBs separator. The abundant chemisorption sites of C3 N4 -CoSe2 form chemical bonding with polysulfides, provides suitable adsorption energy for lithium polysulfides (LiPSs). More importantly, the spontaneously formed internal electric field accelerates the charge flow in the C3 N4 -CoSe2 interface, thus facilitating the transport of LiPSs and electrons and promoting the bidirectional conversion of sulfur. Meanwhile, the lithiophilic C3 N4 -CoSe2 sample with catalytic activity can effectively regulate the uniform distribution of lithium when Li+ penetrates the separator, avoiding the formation of lithium dendrites in the lithium (Li) metal anode. Therefore, LSBs based on C3 N4 -CoSe2 functionalized membranes exhibit a stable long cycle life at 1C (with capacity decay of 0.0819% per cycle) and a large areal capacity of 10.30 mAh cm-2 at 0.1C (sulfur load: 8.26 mg cm-2 , lean electrolyte 5.4 µL mgs -1 ). Even under high-temperature conditions of 60 °C, a capacity retention rate of 81.8% after 100 cycles at 1 C current density is maintained.
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Affiliation(s)
- Ziwei Liang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Chao Peng
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, P. R. China
| | - Jiadong Shen
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Jujun Yuan
- Key Laboratory of New Energy Materials and Low Carbon Technologies, College of Physics and Electronics, Gannan Normal University, Ganzhou, 341000, P. R. China
| | - Yan Yang
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Dongfeng Xue
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, 518055, P. R. China
| | - Min Zhu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, P. R. China
| | - Jun Liu
- School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials, South China University of Technology, Guangzhou, 510641, P. R. China
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50
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Zhang R, Li C, Cui H, Wang Y, Zhang S, Li P, Hou Y, Guo Y, Liang G, Huang Z, Peng C, Zhi C. Electrochemical nitrate reduction in acid enables high-efficiency ammonia synthesis and high-voltage pollutes-based fuel cells. Nat Commun 2023; 14:8036. [PMID: 38052852 DOI: 10.1038/s41467-023-43897-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 11/23/2023] [Indexed: 12/07/2023] Open
Abstract
Most current research is devoted to electrochemical nitrate reduction reaction for ammonia synthesis under alkaline/neutral media while the investigation of nitrate reduction under acidic conditions is rarely reported. In this work, we demonstrate the potential of TiO2 nanosheet with intrinsically poor hydrogen-evolution activity for selective and rapid nitrate reduction to ammonia under acidic conditions. Hybridized with iron phthalocyanine, the resulting catalyst displays remarkably improved efficiency toward ammonia formation owing to the enhanced nitrate adsorption, suppressed hydrogen evolution and lowered energy barrier for the rate-determining step. Then, an alkaline-acid hybrid Zn-nitrate battery was developed with high open-circuit voltage of 1.99 V and power density of 91.4 mW cm-2. Further, the environmental sulfur recovery can be powered by above hybrid battery and the hydrazine-nitrate fuel cell can be developed for simultaneously hydrazine/nitrate conversion and electricity generation. This work demonstrates the attractive potential of acidic nitrate reduction for ammonia electrosynthesis and broadens the field of energy conversion.
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Affiliation(s)
- Rong Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Chuan Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Huilin Cui
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Yanbo Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Shaoce Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Pei Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Yue Hou
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Ying Guo
- College of Materials Science and Engineering, Shenzhen University, 518061, Shenzhen, China.
| | - Guojin Liang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Zhaodong Huang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China
| | - Chao Peng
- Multiscale Crystal Materials Research Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, 518055, Shenzhen, China.
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, 999077, Hong Kong, China.
- Centre for Functional Photonics, City University of Hong Kong, 999077, Kowloon, Hong Kong, China.
- Songshan Lake Materials Laboratory, 523808, Dongguan, Guangdong, China.
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