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Xiang L, Zhu C, Qian J, Zhou X, Wang M, Song Z, Chen C, Yu W, Chen L, Zeng L. Positive contributions of the stem to the formation of white tea quality-related metabolites during withering. Food Chem 2024; 449:139173. [PMID: 38593722 DOI: 10.1016/j.foodchem.2024.139173] [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: 12/23/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/11/2024]
Abstract
Most teas, including white tea, are produced from tender shoots containing both leaf and stem. However, the effect of the stem on white tea quality remains unclear, especially during withering, an essential process. Therefore, this study investigated the withering-induced changes in the leaves and stems of Camellia sinensis cv. 'Fudingdabai' by multi-group analysis. During withering, the levels of catechin and theobromine (i.e., major flavor-related compounds) decreased slightly, mainly in the leaves. The abundance of some proteinaceous amino acids related to fresh taste increased in stems due to increased protein hydrolysis. In addition, changes in biosynthetic pathways caused a decrease in theanine (a major non-proteinaceous amino acid) and an increase in gamma-aminobutyric acid in stems. Terpenes, mainly in the stems, were partially affected by withering. Phenylacetaldehyde, a major contributor to white tea aroma, increased mainly in the stems. These findings reflect the positive contribution of the stem to white tea quality.
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Affiliation(s)
- Lihui Xiang
- Tea Research Institute, Fujian Academy of Agricultural Sciences, No. 104 Pudang Road, Xindian Town, Jin'an District, Fuzhou 350012, China
| | - Chen Zhu
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
| | - Jiajia Qian
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
| | - Xiaochen Zhou
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China
| | - Miao Wang
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
| | - Zhenshuo Song
- Tea Research Institute, Fujian Academy of Agricultural Sciences, No. 104 Pudang Road, Xindian Town, Jin'an District, Fuzhou 350012, China
| | - Changsong Chen
- Tea Research Institute, Fujian Academy of Agricultural Sciences, No. 104 Pudang Road, Xindian Town, Jin'an District, Fuzhou 350012, China
| | - Wenquan Yu
- Fujian Academy of Agricultural Sciences, No. 247 Wusi Road, Gulou District, Fuzhou 350003, China.
| | - Lin Chen
- Tea Research Institute, Fujian Academy of Agricultural Sciences, No. 104 Pudang Road, Xindian Town, Jin'an District, Fuzhou 350012, China.
| | - Lanting Zeng
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China; University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China.
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Dong J, Zhou W, Hu X, Bai J, Zhang S, Zhang X, Yu L, Yang P, Kong L, Liu M, Shang X, Su Z, Geng D, Zhu C. Honeycomb-inspired ZIF-sealed interface enhances osseointegration via anti-infection and osteoimmunomodulation. Biomaterials 2024; 307:122515. [PMID: 38401481 DOI: 10.1016/j.biomaterials.2024.122515] [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: 09/20/2023] [Revised: 01/19/2024] [Accepted: 02/20/2024] [Indexed: 02/26/2024]
Abstract
Implant-associated infections (IAIs) pose a significant threat to orthopedic surgeries. Bacteria colonizing the surface of implants disrupt bone formation-related cells and interfere with the osteoimmune system, resulting in an impaired immune microenvironment and osteogenesis disorders. Inspired by nature, a zeolitic imidazolate framework (ZIF)-sealed smart drug delivery system on Ti substrates (ZSTG) was developed for the "natural-artificial dual-enzyme intervention (NADEI)" strategy to address these challenges. The subtle sealing design of ZIF-8 on the TiO2 nanotubes ensured glucose oxidase (GOx) activity and prevented its premature leakage. In the acidic infection microenvironment, the degradation of ZIF-8 triggered the rapid release of GOx, which converted glucose into H2O2 for disinfection. The Zn2+ released from degraded ZIF-8, as a DNase mimic, can hydrolyze extracellular DNA, which further enhances H2O2-induced disinfection and prevents biofilm formation. Importantly, Zn2+-mediated M2 macrophage polarization significantly improved the impaired osteoimmune microenvironment, accelerating bone repair. Transcriptomics revealed that ZSTG effectively suppressed the inflammatory cascade induced by lipopolysaccharide while promoting cell proliferation, homeostasis maintenance, and bone repair. In vitro and in vivo results confirmed the superior anti-infective, osteoimmunomodulatory, and osteointegrative capacities of the ZSTG-mediated NADEI strategy. Overall, this smart bionic platform has significant potential for future clinical applications to treat IAIs.
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Affiliation(s)
- Jiale Dong
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Wei Zhou
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xianli Hu
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Jiaxiang Bai
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China; National Center for Translational Medicine (Shanghai) SHU Branch, Shanghai University, Shanghai 200444, China.
| | - Siming Zhang
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Xianzuo Zhang
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Lei Yu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Peng Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China
| | - Lingtong Kong
- Department of Orthopedics, The First Affiliated Hospital of Naval Medical University: Changhai Hospital, Shanghai 200433, China
| | - Mingkai Liu
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Xifu Shang
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China
| | - Zheng Su
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu, China.
| | - Chen Zhu
- Department of Orthopedics, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China.
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Hu J, Qian F, Li X, Tang Y, Zhu C, Fu J, Wang J. Rapid start-up and operational characteristics of partial denitrification coupled with anammox driven by innovative strategies. Sci Total Environ 2024; 927:172442. [PMID: 38614336 DOI: 10.1016/j.scitotenv.2024.172442] [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: 01/20/2024] [Revised: 04/06/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
The Partial Denitrification-Anammox (PD/A) process established a low-consumption, efficient and sustainable pathway for complete nitrogen removal, which is of great interest to the industry. Rapid initiation and stable operation of the PD/A systems were the main issues limiting its engineering application in wastewater nitrogen removal. A PD/A system was initiated in a continuous stirred-tank reactors (CSTRs) in the presence of low concentration of organic matter, and the effects of organic matter types and COD/NO3--N ratios on the performance of the PD/A system, and microbial community characteristics were explored. The results showed that low concentrations of organic matter could promote the rapid initiation of the Anammox process and then the strategy of gradually replacing NO2--N with NO3--N could successfully initiate the PD/A system at 70 days. The type of organic matter had a significant effect on the initiation of the Anammox and the establishment of the PD/A system. Compared to glucose, sodium acetate was more favorable for rapid start-up and the synergy among microorganisms, and organic matter was lower, with an optimal COD/NO3--N ratio of 3.0. Microorganisms differed in their sensitivity to environmental factors. The relative abundance of Planctomycetota and Proteobacteria in R2 was 51 %, with the presence of three typical anammox bacteria, Candidatus_Brocadia, Candidatus_Kuenenia, and Candidatus_Jettenia in the system. This study provides a new strategy for the rapid initiation and stable operation of the PD/A process.
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Affiliation(s)
- Juntong Hu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Feiyue Qian
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China; National Local Joint Engineering Laboratory of Urban Domestic Wastewater Resource Utilization Technology, Suzhou 215009, PR China; Jiangsu Collaborative Innovation Center of Water Treatment Technology and Material, Suzhou 215009, PR China
| | - Xingran Li
- Tianping College, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Yuchao Tang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Chen Zhu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Jie Fu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Jianfang Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China; National Local Joint Engineering Laboratory of Urban Domestic Wastewater Resource Utilization Technology, Suzhou 215009, PR China; Jiangsu Collaborative Innovation Center of Water Treatment Technology and Material, Suzhou 215009, PR China; Tianping College, Suzhou University of Science and Technology, Suzhou 215009, PR China.
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Alsharif S, Zhu C, Liu X, Lee SC, Yue H, Rueping M. Nickel-catalyzed C(sp 2)-C(sp 3) coupling via photoactive electron donor-acceptor complexes. Chem Commun (Camb) 2024; 60:5153-5156. [PMID: 38639139 DOI: 10.1039/d4cc00217b] [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: 04/20/2024]
Abstract
We have developed a novel Ni-catalyzed reductive cross-coupling reaction of aryl bromides and alkyl iodides via a photoactive electron donor-acceptor (EDA) complex. This photo-induced process enables the efficient construction of C(sp2)-C(sp3) bonds in the absence of an external photocatalyst. Electronically and structurally diverse aryl bromides, as well as secondary and primary alkyl iodides could undergo this transformation smoothly. Natural product derivatives were employed successfully, and UV-vis spectroscopy was utilized to gain mechanistic insight.
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Affiliation(s)
- Salman Alsharif
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Chen Zhu
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
- Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, 315200, China
| | - Xiushan Liu
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350108, China.
| | - Shao-Chi Lee
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Huifeng Yue
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350108, China.
| | - Magnus Rueping
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
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Chen Y, Wang D, Yin J, Krafft PR, Luo X, Hao D, Li C, Liu Y, Li L, Zhang Y, Zhu C. Increased TMEM166 level in patients with postoperative stroke after carotid endarterectomy. Neuroscience 2024:S0306-4522(24)00195-7. [PMID: 38734302 DOI: 10.1016/j.neuroscience.2024.05.007] [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: 10/24/2023] [Revised: 04/21/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Postoperative stroke is a challenging and potentially devastating complication after elective carotid endarterectomy (CEA). We previously demonstrated that transmembrane protein 166 (TMEM166) levels were directly related to neuronal damage after cerebral ischemia-reperfusion injury in rats. In this subsequent clinical study, we aimed to evaluate the prognostic value of TMEM166 in patients suffering from post-CEA strokes. Thirty-five patients undergoing uncomplicated elective CEA and 8 patients who suffered ischemic strokes after CEA were recruited. We evaluated the protein level and expression of TMEM166 in patients diagnosed with postoperative strokes and compared it to those in patients who underwent uncomplicated elective CEA. Blood samples and carotid artery plaques were collected and analyzed. High expressions of TMEM166 were detected by immunofluorescence staining and Western Blot in carotid artery plaques of all patients who underwent CEA. Furthermore, circulating TMEM166 concentrations were statistically higher in post-CEA stroke patients than in patients allocated to the control group. Mean plasma concentrations of inflammatory markers, including interleukin 6 (IL-6) and C-reactive protein (CRP), were also elevated in patients with postoperative strokes. Therefore, based on these findings, we hypothesize that elevated TMEM166 levels, accompanied by a strong inflammatory response, serve as a useful biomarker for risk assessment of postoperative stroke following CEA.
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Affiliation(s)
- Yifei Chen
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Danyang Wang
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jie Yin
- Department of Anesthesiology, the First Affiliated Hospital of Xinxiang Medical University, Henan, China
| | - Paul R Krafft
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Xin Luo
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Dandan Hao
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Chengwen Li
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ye Liu
- Department of Anaesthesiology, Beijing Obstetrics and Gynecology Hospital,Capital Medical University, Beijing, China.
| | - Li Li
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
| | - Yongbo Zhang
- Department of Neurology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
| | - Chen Zhu
- Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
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Wang X, Wang J, Ji M, Wu X, Zhu C. Z-selective radical difunctionalization of aromatic alkynes: synthesis of multi-substituted triarylethenes. Chem Commun (Camb) 2024; 60:4894-4897. [PMID: 38623623 DOI: 10.1039/d4cc01315h] [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: 04/17/2024]
Abstract
An efficient method for the radical difunctionalization of aromatic alkynes has been developed, resulting in the synthesis of a range of valuable triarylethenes. This approach utilizes strategically designed aryldiazonium salts with tertiary alcohol substitution as bifunctional reagents, along with cost-effective cuprous chloride as a catalyst. The method demonstrates remarkable Z-selectivity and is capable of gram-scale preparation. Additionally, a novel spin-trapping reagent has been developed based on the synthesized product.
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Affiliation(s)
- Xinxin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Jie Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Meishan Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
- Frontiers Science Center for Transformative Molecules and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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Zhu C, Xiao X, Wang X, Ma Z, Han Y. Lignin-modified graphitic carbon nitride nanotubes for photocatalytic H 2O 2 production and degradation of brilliant black BN. Int J Biol Macromol 2024; 267:131533. [PMID: 38608988 DOI: 10.1016/j.ijbiomac.2024.131533] [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: 12/27/2023] [Revised: 03/07/2024] [Accepted: 04/09/2024] [Indexed: 04/14/2024]
Abstract
As a renewable aromatic compound with enormous production potential, lignin has various potential high-value utilization pathways, but the success achieved in the field of photocatalysis is limited. Herein, this work prepares a new type of photocatalyst by modifying Graphitic Carbon Nitride Nanotubes (CNT) with self-assembled lignin nanospheres for the photocatalytic production of H2O2 and the degradation of azo dyes. Under light conditions, lignin enhances the production of H2O2 through oxygen reduction and collaborates with carbon nitride tubes to generate O2- and 1O2. Furthermore, carbon nitride tubes form electron-rich regions with lignin, promoting the transfer of electrons from adsorbed aromatic pollutants to this region, thereby facilitating their degradation. The experimental results indicate that the addition of 5 % lignin significantly enhances the photocatalytic degradation efficiency of azo dyes, with a degradation rate 1.87 times higher than that of the original carbon nitride tubes. Furthermore, CNL also have excellent degradation ability to pollutants in actual wastewater. This study provides new insights and prospects for the high-value utilization of lignin, enabling it to be used as a photocatalytic co-catalyst to participate in the photocatalytic degradation of environmental pollutants.
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Affiliation(s)
- Chen Zhu
- The Liaoning Province Key Laboratory of Paper and Pulp Engineering, The Key Laboratory of High Value Utilization of Botanical Resources of China, Light Industry College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Xinyu Xiao
- The Liaoning Province Key Laboratory of Paper and Pulp Engineering, The Key Laboratory of High Value Utilization of Botanical Resources of China, Light Industry College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Xing Wang
- The Liaoning Province Key Laboratory of Paper and Pulp Engineering, The Key Laboratory of High Value Utilization of Botanical Resources of China, Light Industry College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Zihao Ma
- The Liaoning Province Key Laboratory of Paper and Pulp Engineering, The Key Laboratory of High Value Utilization of Botanical Resources of China, Light Industry College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Ying Han
- The Liaoning Province Key Laboratory of Paper and Pulp Engineering, The Key Laboratory of High Value Utilization of Botanical Resources of China, Light Industry College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.
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Xu D, Hu J, Mei J, Zhou J, Wang Z, Zhang X, Liu Q, Su Z, Zhu W, Liu H, Zhu C. Nanoadjuvant-triggered STING activation evokes systemic immunotherapy for repetitive implant-related infections. Bioact Mater 2024; 35:82-98. [PMID: 38283386 PMCID: PMC10818060 DOI: 10.1016/j.bioactmat.2024.01.020] [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] [Received: 10/06/2023] [Revised: 12/20/2023] [Accepted: 01/19/2024] [Indexed: 01/30/2024] Open
Abstract
Repetitive implant-related infections (IRIs) are devastating complications in orthopedic surgery, threatening implant survival and even the life of the host. Biofilms conceal bacterial-associated antigens (BAAs) and result in a "cold tumor"-like immune silent microenvironment, allowing the persistence of IRIs. To address this challenge, an iron-based covalent organic framed nanoadjuvant doped with curcumin and platinum (CFCP) was designed in the present study to achieve efficient treatment of IRIs by inducing a systemic immune response. Specifically, enhanced sonodynamic therapy (SDT) from CFCP combined with iron ion metabolic interference increased the release of bacterial-associated double-stranded DNA (dsDNA). Immunogenic dsDNA promoted dendritic cell (DC) maturation through activation of the stimulator of interferon gene (STING) and amplified the immune stimulation of neutrophils via interferon-β (IFN-β). At the same time, enhanced BAA presentation aroused humoral immunity in B and T cells, creating long-term resistance to repetitive infections. Encouragingly, CFCP served as neoadjuvant immunotherapy for sustained antibacterial protection on implants and was expected to guide clinical IRI treatment and relapse prevention.
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Affiliation(s)
- Dongdong Xu
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, PR China
| | - Jun Hu
- Department of Laboratory Medicine, Long Hua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, PR China
| | - Jiawei Mei
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, PR China
| | - Jun Zhou
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200233, PR China
| | - Zhengxi Wang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, PR China
| | - Xudong Zhang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, PR China
| | - Quan Liu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, PR China
| | - Zheng Su
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, PR China
| | - Wanbo Zhu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, 200233, PR China
| | - Hongjian Liu
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, PR China
| | - Chen Zhu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, PR China
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Zhu C, Xi X, Goh M. Differential game analysis of joint emission reduction decisions under mixed carbon policies and CEA. J Environ Manage 2024; 358:120913. [PMID: 38636418 DOI: 10.1016/j.jenvman.2024.120913] [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: 02/20/2024] [Revised: 03/26/2024] [Accepted: 04/12/2024] [Indexed: 04/20/2024]
Abstract
To understand joint emission reduction (JER) of upstream and downstream firms under a low-carbon operational environment, this study incorporates green technology, remanufacturing, low-carbon promotion, consumer environmental awareness (CEA), and mixed carbon policies (carbon tax + cap-and-trade) into a dynamic framework to investigate JER decisions of the upstream manufacturer and the downstream retailer. Applying the differential game theory, we consider low-carbon goodwill as the state variable and explore members' optimal decisions in four cases, namely, idealized case, noncooperative case, unilateral cost-sharing contract (UCSC) case, and bilateral cost-sharing contract (BCSC) case. Our results show that the noncooperative case leads to a loss of efficiency in joint emission reduction. Although the BCSC is more advantageous than the UCSC in improving the efficiency of JER, a profit redistribution mechanism needs to be included, and the profit distribution ratio should be controlled within a certain interval. Only in this situation do both parties prefer the BCSC. Additionally, the impact of mixed carbon policies and CEA on JER decisions, low-carbon goodwill, profits, and coordination are fully discussed, and it is found that in the face of stricter mixed carbon policies, the downstream retailer plays a moderating role only in cooperative cases. Several practical implications are concluded for JER, contract design, CEA, and carbon policies. Governments and firms can benefit from our research by gaining a deeper understanding of JER.
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Affiliation(s)
- Chen Zhu
- College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, China; GERAD, HEC Montréal, Canada.
| | - Xuan Xi
- NUS Business School and The Logistics Institute-Asia Pacific, National University of Singapore, Singapore; School of Economics and Management, Southeast University, Nanjing, China
| | - Mark Goh
- NUS Business School and The Logistics Institute-Asia Pacific, National University of Singapore, Singapore
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Jia J, Zhumagazy S, Zhu C, Lee SC, Alsharif S, Yue H, Rueping M. Selective Mono-Defluorinative Cross-Coupling of Trifluoromethyl arenes via Multiphoton Photoredox Catalysis. Chemistry 2024; 30:e202302927. [PMID: 38573029 DOI: 10.1002/chem.202302927] [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: 09/08/2023] [Indexed: 04/05/2024]
Abstract
A new cross-coupling of trifluoromethyl arenes has been realized via multiphoton photoredox catalysis. Trifluoromethyl arenes were demonstrated to undergo selective mono-defluorinative alkylation under mild reaction conditions providing access to a series of valuable α,α-difluorobenzylic compounds. The reaction shows broad substrate scope and general functional group tolerance. In addition to the electron-deficient trifluoromethyl arenes that are easily reduced to the corresponding radical anion, more challenging electron-rich substrates were also successfully applied. Steady-State Stern-Volmer quenching studies indicated that the trifluoromethyl arenes were reduced by the multiphoton excited Ir-based photocatalyst.
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Affiliation(s)
- Jiaqi Jia
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Serik Zhumagazy
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Chen Zhu
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shao-Chi Lee
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Salman Alsharif
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Huifeng Yue
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou, 350108
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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11
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Zhu C, He L, He T, Liang Y, Zhang BW, Zhao HY, Guan H, Yang XK, Hu DH, Han JT, Liu JQ. [Clinical effects of early rehabilitation treatment after repair surgery of skin and soft tissue defects accompanied by extensor tendon injury on the back of hand]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:365-372. [PMID: 38664031 DOI: 10.3760/cma.j.cn501225-20230820-00057] [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: 05/01/2024]
Abstract
Objective: To explore the clinical effects of early rehabilitation treatment after repair surgery of skin and soft tissue defects accompanied by extensor tendon injury on the back of hand. Methods: This study was a retrospective non-randomized controlled study. From February 2015 to February 2023, 24 patients (15 males and 9 females, aged 12-55 years) with skin and soft tissue defects accompanied by extensor tendon injury on the back of hand, who met the inclusion criteria and were repaired with flap transplantation and tendon grafting or tendon anastomosis, were admitted to the First Affiliated Hospital of Air Force Medical University. According to different intervention time for postoperative rehabilitation treatment of patients, the patients were divided into conventional rehabilitation group and early rehabilitation group, with 12 cases in each group. Patients in early rehabilitation group received rehabilitation treatment immediately after surgery under the rehabilitation guidance of specialized rehabilitation physicians based on the characteristics of different postoperative periods. Patients in conventional rehabilitation group began rehabilitation treatment from the third week after surgery, and their rehabilitation treatment was the same as that of patients in early rehabilitation group from the second week after surgery. The patients in 2 groups were treated in the hospital until the sixth week after surgery. The occurrence of flap vascular crisis and tendon rupture were observed within 6 weeks after surgery. After 6 weeks of surgery, the manual muscle test was used to measure the pinching force between the index finger and thumb, lateral pinching force, three-point pinching force, and grip force of the affected hand; the total action motion method was used to evaluate the finger joint range of motion of the affected hand, and the excellent and good ratio was calculated; the Carroll upper extremity function test was used to score and rate the function of the affected hand. Results: Within 6 weeks after surgery, only 1 patient in conventional rehabilitation group suffered from venous crisis, and the flap survived after the second surgical exploration and anastomosis of blood vessels; there was no occurrence of tendon rupture in patients of 2 groups. After 6 weeks of surgery, there were no statistically significant differences in pinching force between the index finger and thumb, lateral pinching force, three-point pinching force, or grip force of the affected hand between the two groups of patients (P>0.05); the excellent and good ratio of the finger joint range of motion of the affected hand of patients in early rehabilitation group was 11/12, which was higher than 7/12 in conventional rehabilitation group, but there was no statistically significant difference (P>0.05); the affected hand function score of patients in early rehabilitation group was 90±6, which was significantly higher than 83±8 in conventional rehabilitation group (t=2.41, P<0.05); the function rating of the affected hand of patients in early rehabilitation group was obviously better than that in conventional rehabilitation group (Z=2.04, P<0.05). Conclusions: Early rehabilitation treatment for patients with skin and soft tissue defects accompanied by extensor tendon injury on the back of hand after repair surgery can improve hand function, but it would not increase surgery related complications, which is worthy of clinical promotion and application.
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Affiliation(s)
- C Zhu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - L He
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - T He
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Liang
- Department of Statistics, Air Force Medical University, Xi'an 710032, China
| | - B W Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - H Y Zhao
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - H Guan
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - X K Yang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - D H Hu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J T Han
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J Q Liu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
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12
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Zhu J, Wang L, Gong W, Li X, Wang Y, Zhu C, Li H, Shi L, Yang C, Du L. Development and evaluation of a risk assessment tool for the personalized screening of breast cancer in Chinese populations: A prospective cohort study. Cancer 2024; 130:1403-1414. [PMID: 37916832 DOI: 10.1002/cncr.35095] [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: 08/09/2023] [Revised: 09/06/2023] [Accepted: 09/28/2023] [Indexed: 11/03/2023]
Abstract
INTRODUCTION Breast cancer is a significant contributor to female mortality, exerting a public health burden worldwide, especially in China, where risk-prediction models with good discriminating accuracy for breast cancer are still scarce. METHODS A multicenter screening cohort study was conducted as part of the Cancer Screening Program in Urban China. Dwellers aged 40-74 years were recruited between 2014 and 2019 and prospectively followed up until June 30, 2021. The entire data set was divided by year of enrollment to develop a prediction model and validate it internally. Multivariate Cox regression was used to ascertain predictors and develop a risk-prediction model. Model performance at 1, 3, and 5 years was evaluated using the area under the curve, nomogram, and calibration curves and subsequently validated internally. The prediction model incorporates selected factors that are assigned appropriate weights to establish a risk-scoring algorithm. Guided by the risk score, participants were categorized into low-, medium-, and high-risk groups for breast cancer. The cutoff values were chosen using X-tile plots. Sensitivity analysis was conducted by categorizing breast cancer risk into the low- and high-risk groups. A decision curve analysis was used to assess the clinical utility of the model. RESULTS Of the 70,520 women enrolled, 447 were diagnosed with breast cancer (median follow-up, 6.43 [interquartile range, 3.99-7.12] years). The final prediction model included age and education level (high, hazard ratio [HR], 2.01 [95% CI, 1.31-3.09]), menopausal age (≥50 years, 1.34 [1.03-1.75]), previous benign breast disease (1.42 [1.09-1.83]), and reproductive surgery (1.28 [0.97-1.69]). The 1-year area under the curve was 0.607 in the development set and 0.643 in the validation set. Moderate predictive discrimination and satisfactory calibration were observed for the validation set. The risk predictions demonstrated statistically significant differences between the low-, medium-, and high-risk groups (p < .001). Compared with the low-risk group, women in the high- and medium-risk groups posed a 2.17-fold and 1.62-fold elevated risk of breast cancer, respectively. Similar results were obtained in the sensitivity analyses. A web-based calculator was developed to estimate risk stratification for women. CONCLUSIONS This study developed and internally validated a risk-adapted and user-friendly risk-prediction model by incorporating easily accessible variables and female factors. The personalized model demonstrated reliable calibration and moderate discriminative ability. Risk-stratified screening strategies contribute to precisely distinguishing high-risk individuals from asymptomatic individuals and prioritizing breast cancer screening. PLAIN LANGUAGE SUMMARY Breast cancer remains a burden in China. To enhance breast cancer screening, we need to incorporate population stratification in screening. Accurate risk-prediction models for breast cancer remain scarce in China. We established and validated a risk-adapted and user-friendly risk-prediction model by incorporating routinely available variables along with female factors. Using this risk-stratified model helps accurately identify high-risk individuals, which is of significant importance when considering integrating individual risk assessments into mass screening programs for breast cancer. Current clinical breast cancer screening lacks a constructive clinical pathway and guiding recommendations. Our findings can better guide clinicians and health care providers.
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Affiliation(s)
- Juan Zhu
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Le Wang
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Weiwei Gong
- Department of Chronic and Noncommunicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China
| | - Xue Li
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Youqing Wang
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Chen Zhu
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Huizhang Li
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Lei Shi
- Department of Radiology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Chen Yang
- Department of Ultrasound, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Lingbin Du
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, China
- School of Public Health and Management, Wenzhou Medical University, Wenzhou, Zhejiang, China
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Yang S, Ming H, Zhu C, Wang Z, Xin H, Ge Z, Li D, Zhang J, Qin X. High Thermoelectric Performance of n-type BiTeSe-Based Composites Incorporated with Both Inorganic and Organic Nanoinclusions. ACS Appl Mater Interfaces 2024; 16:16732-16743. [PMID: 38506353 DOI: 10.1021/acsami.4c02032] [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] [Indexed: 03/21/2024]
Abstract
N-type Bi2Te2.7Se0.3 (BTS) alloy has relatively low thermoelectric performance as compared to its p-type counterpart, which restricts its widespread applications. Herein, we designed and prepared a novel composite system, which consists of an n-type BTS matrix incorporated with both inorganic and organic nanoinclusions. The results indicate that the thermopower of the composite samples can be enhanced by more than 19% upon incorporating inorganic nanophase AgBi3S5 (ABS) due to the energy-dependent carrier scattering, which ensures a high power factor. On the other hand, further incorporation of organic nanophase polypyrrole (PPy) can drastically reduce its lattice thermal conductivity owing to the strong scattering of mid- and low-frequency phonons at these nanoinclusions. As a result, high figures of merit ZTmax = 1.3 at 348 K and ZTave = 1.17 (300-500 K) are achieved with improved mechanical properties in BTS-based composites incorporated with 1.5 wt % ABS and 0.5 wt % PPy, demonstrating that the incorporation of both inorganic and organic nanoinclusions is an effective way to improve its thermoelectric performance.
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Affiliation(s)
- Shuhuan Yang
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hongwei Ming
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Chen Zhu
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Ziyuan Wang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Hongxing Xin
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Zhenhua Ge
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China
| | - Di Li
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jian Zhang
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiaoying Qin
- Key Lab of Photovoltaic and Energy Conservation Materials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, P. R. China
- University of Science and Technology of China, Hefei 230026, P. R. China
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Ma L, Zhu C, Wei YF, Zhou JY, Chen M, Zhang X, Zhou P, Wang Y, Wang J, Chu C, Tang JY, Xu Y. Chronic chemogenetic inhibition of TRPV1 bladder afferent promotes micturition recovery post SCI. Exp Neurol 2024; 374:114686. [PMID: 38199507 DOI: 10.1016/j.expneurol.2024.114686] [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: 11/08/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
Spinal cord injury often results in chronic loss of micturition control, which is featured by bladder hyperreflexia and detrusor sphincter dyssynergia. Previous studies showed that treatment of capsaicin reduces non-voiding bladder contractions in multiple animal injury models and human patients. However, its underlying neural mechanisms remain largely unknown. Here, by injecting a RetroAAV into the bladder wall, we specifically targeted TRPV1+, a capsaicin receptor, bladder afferent neurons. Morphometric analysis revealed borderline increase of the soma size and significant spinal axon sprouting of TRPV1+ bladder afferent neurons post a complete T8 spinal cord crush. We further demonstrated that chronic chemogenetic inhibition of these DRG neurons improved micturition recovery after SCI by increasing voiding efficiency and alleviating bladder hyperreflexia, along with reduced morphological changes caused by injury. Our study provided novel insights into the structural and functional changes of TRPV1+ bladder afferent post SCI and further supports the clinical use of capsaicin as an effective treatment to improve bladder functions in patients with SCI.
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Affiliation(s)
- Long Ma
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Chen Zhu
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yun-Fei Wei
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Jin-Yong Zhou
- Department of Central Laboratory, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Min Chen
- General Internal Medicine Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Xin Zhang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Ping Zhou
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yan Wang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Jian Wang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Can Chu
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Jing-Yuan Tang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yan Xu
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China.
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Wang J, Wu X, Cao Z, Zhang X, Wang X, Li J, Zhu C. E-Selective Radical Difunctionalization of Unactivated Alkynes: Preparation of Functionalized Allyl Alcohols from Aliphatic Alkynes. Adv Sci (Weinh) 2024; 11:e2309022. [PMID: 38348551 DOI: 10.1002/advs.202309022] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/23/2024] [Indexed: 04/25/2024]
Abstract
Radical difunctionalization of aliphatic alkynes provides direct access to valuable multi-substituted alkenes, but achieving a high level of chemo- and stereo-control remains a formidable challenge. Herein a novel photoredox neutral alkyne di-functionalization is reported through functional group migration followed by a radical-polar crossover and energy transfer-enabled stereoconvergent isomerization of alkenes. In this sequence, a hydroxyalkyl and an aryl group are incorporated concomitantly into an alkyne, leading to diversely functionalized E-allyl alcohols. The scope of alkynes is noteworthy, and the reaction tolerates aliphatic alkynes containing hydrogen donating C─H bonds that are prone to intramolecular hydrogen atom transfer. The protocol features broad functional group compatibility, high product diversity, and exclusive chemo- and stereoselectivity, thus providing a practical strategy for the elusive radical di-functionalization of unactivated alkynes.
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Affiliation(s)
- Jie Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Zhu Cao
- Frontiers Science Center for Transformative Molecules and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Xu Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Xinxin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Jie Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, China
- Frontiers Science Center for Transformative Molecules and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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Zhu C, Liu X, Chen D. Prediction of digital transformation of manufacturing industry based on interpretable machine learning. PLoS One 2024; 19:e0299147. [PMID: 38551908 PMCID: PMC10980183 DOI: 10.1371/journal.pone.0299147] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 02/05/2024] [Indexed: 04/01/2024] Open
Abstract
The enhancement of digital transformation is of paramount importance for business development. This study employs machine learning to establish a predictive model for digital transformation, investigates crucial factors that influence digital transformation, and proposes corresponding improvement strategies. Initially, four commonly used machine learning algorithms are compared, revealing that the Extreme tree classification (ETC) algorithm exhibits the most accurate prediction. Subsequently, through correlation analysis and recursive elimination, key features that impact digital transformation are selected resulting in the corresponding feature subset. Shapley Additive Explanation (SHAP) values are then employed to perform an interpretable analysis on the predictive model, elucidating the effects of each key feature on digital transformation and obtaining critical feature values. Lastly, informed by practical considerations, we propose a quantitative adjustment strategy to enhance the degree of digital transformation in enterprises, which provides guidance for digital development.
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Affiliation(s)
- Chen Zhu
- Business School, Yangzhou University, Yangzhou, China
- School of Economics, Dongbei University of Finance and Economics, Dalian, China
- Postdoctoral Workstation of China Dalian International Economic & Technical Cooperation Group Co., Ltd, Dalian, China
| | - Xue Liu
- Business School, Yangzhou University, Yangzhou, China
| | - Dong Chen
- School of Accounting, Dongbei University of Finance and Economics, Dalian, China
- China Internal Control Research Center, Dalian, China
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Zhu C, Tian H, Yan F, Xue J, Li W. Enhancing knowledge mastery in resident students through peer-teaching: a study in respiratory medicine. BMC Med Educ 2024; 24:350. [PMID: 38553682 PMCID: PMC10981305 DOI: 10.1186/s12909-024-05130-w] [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] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 02/03/2024] [Indexed: 04/01/2024]
Abstract
AIM The transition from medical students to competent physicians requires comprehensive training during residency programs. In China, resident students typically undergo 2- or 3-year training programs. While they learn from patient interactions under the guidance of experienced doctors, integrating theoretical knowledge from textbooks into practical cases remains a challenge. This study aimed to explore the impact of medical interns acting as peer-students on the knowledge mastery of resident students. METHOD The participants of this study consisted of resident students specializing in respiratory medicine at the Second Affiliated Hospital of Zhejiang University, School of Medicine. Resident students were given the opportunity to volunteer as peer-teachers for medical interns in the respiratory department. Those who chose to instruct interns were automatically placed into the test group, while those who opted not to partake in intern instruction formed the control group. In their role as peer-teachers, resident students assumed the responsibility of guiding interns in patient management throughout the entire continuum, spanning from initial engagement to discharge, a commitment that extended over a minimum period of 2 weeks. The resident students' academic performance was evaluated through a departmental examination consisting of 50 multiple-choice questions, which was administered upon completing their rotation. Statistical analysis was performed to assess the impact of peer-teaching on the resident students' performance. RESULTS Between January 2023 and June 2023, a total of 158 resident students completed their rotation in the respiratory department. Among them, 40 resident students willingly took on the responsibility of instructing medical interns, while 118 resident students did not participate in intern teaching. With a "one-to-one" teaching policy in place, the overall satisfaction rate of the interns was an impressive 95.35%. Pre-rotation test scores for the test group averaged 81.66 ± 8.325 (Mean ± SD) and the control group averaged 81.66 ± 8.002, without significance. The departmental examination scores of the test group averaged 85.60 ± 7.886, while the control group scored an average of 82.25 ± 8.292, with a statistically significant difference (p = 0.027). CONCLUSION In conclusion, our study underscores the positive influence of peer-teaching on the knowledge mastery of resident students.
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Affiliation(s)
- Chen Zhu
- Department of Respiratory and Critical Care Medicine Key Laboratory of Respiratory Disease of Zhejiang Province, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
- Department Education, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Heshen Tian
- Department of Respiratory and Critical Care Medicine Key Laboratory of Respiratory Disease of Zhejiang Province, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
- Department Education, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China
| | - Fugui Yan
- Department of Respiratory and Critical Care Medicine Key Laboratory of Respiratory Disease of Zhejiang Province, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
| | - Jing Xue
- Department Rheumatology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
- Department Education, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
| | - Wen Li
- Department of Respiratory and Critical Care Medicine Key Laboratory of Respiratory Disease of Zhejiang Province, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, 310009, Zhejiang, China.
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He L, Wang R, Zhu C, Yu XY, He YC, Zhou L, Zhang Z, Shu MG. [Clinical effects of flaps or myocutaneous flaps transplantation after titanium mesh-retaining debridement in repairing the wounds with exposed titanium mesh after cranioplasty]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:273-280. [PMID: 38548398 DOI: 10.3760/cma.j.cn501225-20231031-00163] [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: 04/02/2024]
Abstract
Objective: To explore the clinical effects of flaps or myocutaneous flaps transplantation after debridement to repair the wounds with exposed titanium mesh after cranioplasty on the premise of retaining the titanium mesh. Methods: This study was a retrospective observational study. From February 2017 to October 2022, 22 patients with titanium mesh exposure after cranioplasty who met the inclusion criteria were admitted to the Department of Plastic, Aesthetic & Maxillofacial Surgery of the First Affiliated Hospital of Xi'an Jiaotong University, including 15 males and 7 females, aged from 19 to 68 years. After admission, treatments such as bacterial culture of wound exudate sample, anti-infection, and dressing change were carried out. Thorough surgical debridement was performed when the wound improved, and the wound area was 3.0 cm×2.0 cm to 11.0 cm×8.0 cm after debridement. The wound was repaired with local flaps, expanded flaps, or free latissimus dorsi myocutaneous flaps according to the size, location, severity of infection, and surrounding tissue condition of the wounds, and the areas of flaps or myocutaneous flaps were 5.5 cm×4.0 cm to 18.0 cm×15.0 cm. The donor areas of flaps were sutured directly or repaired by split-thickness skin grafts from head. The wound repair method was recorded. The survivals of flaps or myocutaneous flaps after surgery and wound healing in 2 weeks after surgery were recorded. During postoperative follow-up, recurrence of infection or titanium mesh exposure in the implanted area of titanium mesh was observed; the head shapes of patients, scar formation of the operative incision, and baldness were observed. At the last follow-up, the satisfaction of patients with the treatment effect (dividing into three levels: satisfied, basically satisfied, and dissatisfied) was evaluated. The total treatment costs of patients during their hospitalization were calculated. Results: The wounds in 11 cases were repaired with local flaps, the wounds in 5 cases were repaired with expanded flaps, and the wounds in 6 cases were repaired with free latissimus dorsi myocutaneous flaps. All flaps or myocutaneous flaps survived completely after surgery, and all wounds healed well in 2 weeks after surgery. Follow up for 6 to 48 months after operation, only one patient with local flap grafting experienced a recurrence of infection in the titanium mesh implanted area at more than one month after surgery, and the titanium mesh was removed because of ineffective treatment. Except for one patient who had a local depression in the head after removing the titanium mesh, the rest of the patients had a full head shape. Except for myocutaneous flap grafting areas in 6 cases and skin grafting area in 1 case with local flaps grafting had no hair growth, the other patients had no baldness. All the scars in surgical incision were concealed. At the last follow-up, 19 cases were satisfied with the treatment effects, 2 cases were basically satisfied, and 1 case was dissatisfied. The total treatment cost for patients in this group during hospitalization was 11 764-36 452 (22 304±6 955) yuan. Conclusions: For patients with titanium mesh exposure after cranioplasty, on the premise of adequate preoperative preparation and thorough debridement, the wound can be repaired with appropriate flaps or myocutaneous flaps according to the wound condition. The surgery can preserve all or part of the titanium mesh. The postoperative wound healing is good and the recurrence of infection or titanium mesh exposure in the titanium mesh implanted area is reduced, leading to good head shape, reduced surgical frequency, and decreased treatment costs.
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Affiliation(s)
- L He
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - R Wang
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - C Zhu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital of Air Force Medical University, Xi'an 710032, China
| | - X Y Yu
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y C He
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - L Zhou
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Z Zhang
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - M G Shu
- Department of Plastic, Aesthetic & Maxillofacial Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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19
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Dong H, Qiu L, Zhu C, Fan W, Liu L, Deng Q, Zhang H, Yang W, Cai K. Preparation of calcium phosphate ion clusters through atomization method for biomimetic mineralization of enamel. J Biomed Mater Res A 2024. [PMID: 38461494 DOI: 10.1002/jbm.a.37706] [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: 11/29/2023] [Revised: 02/21/2024] [Accepted: 02/29/2024] [Indexed: 03/12/2024]
Abstract
Dental enamel is a mineralized extracellular matrix, and enamel defect is a common oral disease. However, the self-repair capacity of enamel is limited due to the absence of cellular components and organic matter. Efficacy of biomimetic enamel mineralization using calcium phosphate ion clusters (CPICs), is an effective method to compensate for the limited self-healing ability of fully developed enamel. Preparing and stabilizing CPICs presents a significant challenge, as the addition of certain stabilizers can diminish the mechanical properties or biosafety of mineralized enamel. To efficiently and safely repair enamel damage, this study quickly prepared CPICs without stabilizers using the atomization method. The formed CPICs were evenly distributed on the enamel surface, prompting directional growth and transformation of hydroxyapatite (HA) crystals. The study revealed that the mended enamel displayed comparable morphology, chemical composition, hardness, and mechanical properties to those of the original enamel. The approach of repairing dental enamel by utilizing ultrasonic nebulization of CPICs is highly efficient and safe, therefore indicating great promise.
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Affiliation(s)
- Haide Dong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Lin Qiu
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Chen Zhu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Wuzhe Fan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Li Liu
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Quanfu Deng
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Huan Zhang
- Dencare (Chongqing) Oral Care Co., Ltd, Chongqing, People's Republic of China
| | - Weihu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, People's Republic of China
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20
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Zhu C, Wei WP, An JN, Hu JL, Gao CH, Yang M. SdrR, a LysR-Type Regulator, responds to the mycobacterial antioxidant defense. J Biochem 2024:mvae026. [PMID: 38444151 DOI: 10.1093/jb/mvae026] [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: 01/26/2024] [Indexed: 03/07/2024] Open
Abstract
Protection against oxidative stress is a vital defense mechanism for Mycobacterium tuberculosis within the host. However, few transcription factors that control bacterial antioxidant defense are known. Here, we present evidence that SdrR, encoded by the MSMEG_5712 (Ms5712) gene, functions as an oxidative stress response regulator in Mycobacterium smegmatis. SdrR recognizes an 11-bp motif sequence in the operon's upstream regulatory region and negatively regulates the expression of short-chain dehydrogenases/reductases (SDR). Overexpressing sdrR inhibited SDR expression, which rendered the strain oxidative more stress-sensitive. Conversely, sdrR knockout alleviates SDR repression, which increases its oxidative stress tolerance. Thus, SdrR responds to oxidative stress by negatively regulating sdr expression. Therefore, this study elucidated an underlying regulatory mechanism behind mycobacterial oxidative stress adaptation.
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Affiliation(s)
- Chen Zhu
- School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Wen-Ping Wei
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jing-Ning An
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jia-Ling Hu
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chun-Hui Gao
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Min Yang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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21
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Zhu C, Fryar AE, Apps J. Inorganic Hydrogeochemistry in the 21st Century. Ground Water 2024; 62:174-183. [PMID: 37482948 DOI: 10.1111/gwat.13342] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 06/30/2023] [Accepted: 07/14/2023] [Indexed: 07/25/2023]
Abstract
Chemical and isotopic processes occur in every segment of the hydrological cycle. Hydrogeochemistry-the subdiscipline that studies these processes-has seen a transformation from "witch's brew" to credible science since 2000. Going forward, hydrogeochemical research and applications are critical to meeting urgent societal needs of climate change mitigation and clean energy, such as (1) removing CO2 from the atmosphere and storing gigatons of CO2 in soils and aquifers to achieve net-zero emissions, (2) securing critical minerals in support of the transition from fossil fuels to renewable energies, and (3) protecting water resources by adapting to a warming climate. In the last two decades, we have seen extensive activity and progress in four research areas of hydrogeochemistry related to water-rock interactions: arsenic contamination of groundwater; the use of isotopic and chemical tracers to quantify groundwater recharge and submarine groundwater discharge; the kinetics of chemical reactions and the mineral-water interface's control of contaminant fate and transport; and the transformation of geochemical modeling from an expert-only exercise to a widely accessible tool. In the future, embracing technological advances in machine learning, cyberinfrastructure, and isotope analytical tools will allow breakthrough research and expand the role of hydrogeochemistry in meeting society's needs for climate change mitigation and the transition from fossil fuels to renewable energies.
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Affiliation(s)
| | - Alan E Fryar
- Department of Earth and Environmental Sciences, University of Kentucky, 101 Slone Bldg., Lexington, KY, 40506-0053, USA
| | - John Apps
- Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA, 94705, USA
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22
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Xu X, Zhou J, Zhu C, Zhan Q, Li Z, Zhang R, Wang Y, Liao X, Gao X. Optimization of binding affinities in chemical space with generative pre-trained transformer and deep reinforcement learning. F1000Res 2024; 12:757. [PMID: 38434657 PMCID: PMC10905145 DOI: 10.12688/f1000research.130936.2] [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] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/15/2024] [Indexed: 03/05/2024] Open
Abstract
Background The key challenge in drug discovery is to discover novel compounds with desirable properties. Among the properties, binding affinity to a target is one of the prerequisites and usually evaluated by molecular docking or quantitative structure activity relationship (QSAR) models. Methods In this study, we developed SGPT-RL, which uses a generative pre-trained transformer (GPT) as the policy network of the reinforcement learning (RL) agent to optimize the binding affinity to a target. SGPT-RL was evaluated on the Moses distribution learning benchmark and two goal-directed generation tasks, with Dopamine Receptor D2 (DRD2) and Angiotensin-Converting Enzyme 2 (ACE2) as the targets. Both QSAR model and molecular docking were implemented as the optimization goals in the tasks. The popular Reinvent method was used as the baseline for comparison. Results The results on the Moses benchmark showed that SGPT-RL learned good property distributions and generated molecules with high validity and novelty. On the two goal-directed generation tasks, both SGPT-RL and Reinvent were able to generate valid molecules with improved target scores. The SGPT-RL method achieved better results than Reinvent on the ACE2 task, where molecular docking was used as the optimization goal. Further analysis shows that SGPT-RL learned conserved scaffold patterns during exploration. Conclusions The superior performance of SGPT-RL in the ACE2 task indicates that it can be applied to the virtual screening process where molecular docking is widely used as the criteria. Besides, the scaffold patterns learned by SGPT-RL during the exploration process can assist chemists to better design and discover novel lead candidates.
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Affiliation(s)
- Xiaopeng Xu
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Juexiao Zhou
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Chen Zhu
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Qing Zhan
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Zhongxiao Li
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Yu Wang
- Syneron Technology, Guangzhou, China
| | - Xingyu Liao
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Xin Gao
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Computer, Electrical and Mathematical Sciences and Engineering (CEMSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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23
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Zhu C, Zeng X, Chen L, Liu M, Zheng M, Liu J, Liu H. Changes in quality characteristics based on protein oxidation and microbial action of ultra-high pressure-treated grass carp (Ctenopharyngodon idella) fillets during magnetic field storage. Food Chem 2024; 434:137464. [PMID: 37722334 DOI: 10.1016/j.foodchem.2023.137464] [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: 02/13/2023] [Revised: 08/26/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
Ultra-high pressure (UHP) and magnetic field (MF) are emerging food preservation technologies, but the research on the effects of combined treatment (UHP-MF) on aquatic products quality is insufficient. Hence, we explored the effects of UHP-MF treatment on the protein properties, microbial action and quality characteristics of stored grass carp fillets. Results showed that 300 MPa UHP treatment combined with MF storage (UHP300-MF) delayed the protein oxidation of stored fillets by inhibiting the accumulation of protein radical and the formation of lipid pro-oxidation products, thus the quality (texture, color) deterioration caused by oxidation was deferred. Additionally, 16S rDNA bacteria flora analysis revealed that UHP300-MF treatment inhibited the flora activity and diversity of fillets, delayed the protein degradation and quality deterioration caused by microbial action. Overall, UHP300-MF treatment suppressed the lipid and protein oxidation as well as microbial action, retarded the quality deterioration, and prolonged the shelf life of stored fillets.
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Affiliation(s)
- Chen Zhu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Jilin Agricultural University, Chang-chun, Jilin 130118, China
| | - Xinyao Zeng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Jilin Agricultural University, Chang-chun, Jilin 130118, China
| | - Lihang Chen
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Meihong Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Jilin Agricultural University, Chang-chun, Jilin 130118, China
| | - Mingzhu Zheng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Jilin Agricultural University, Chang-chun, Jilin 130118, China
| | - Jingsheng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Jilin Agricultural University, Chang-chun, Jilin 130118, China
| | - Huimin Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China; National Engineering Research Center for Wheat and Corn Deep Processing, Jilin Agricultural University, Chang-chun, Jilin 130118, China.
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24
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Zhu C, Dalsgaard B, Li W, Gonçalves F, Vollstädt MGR, Ren P, Zhang X, Shao J, Ding P, Si X. Generalist and topologically central avian frugivores promote plant invasion unequally across land-bridge islands. Ecology 2024; 105:e4216. [PMID: 38037487 DOI: 10.1002/ecy.4216] [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: 03/28/2023] [Revised: 08/26/2023] [Accepted: 10/20/2023] [Indexed: 12/02/2023]
Abstract
Seed dispersal by frugivorous birds facilitates plant invasions, but it is poorly known how invasive plants integrate into native communities in fragmented landscapes. We surveyed plant-frugivore interactions, including an invasive plant (Phytolacca americana), on 22 artificial land-bridge islands (fragmented forests) in the Thousand Island Lake, China. Focusing on frugivory interactions that may lead to seed dispersal, we built ecological networks of studied islands both at the local island (community) and at landscape (metacommunity) levels. On islands with P. americana, we found that P. americana impacted local avian frugivory networks more on islands with species-poor plant communities and on isolated islands. Moreover, as P. americana interacted mainly with local core birds (generalists), this indicates reduced seed dispersal of native plants on invaded islands. At the landscape level, P. americana had established strong interactions with generalist birds that largely maintain seed-dispersal functions across islands, as revealed by their topologically central roles both in the regional plant-bird trophic network and in the spatial metanetwork. This indicates that generalist frugivorous birds may have facilitated the dispersal of P. americana across islands, making P. americana well integrated into the plant-frugivore mutualistic metacommunity. Taken together, our study demonstrates that the impact of plant invasion is context-dependent and that generalist native frugivores with high dispersal potential may accelerate plant invasion in fragmented landscapes. These findings highlight the importance of taking the functional roles of animal mutualists and habitat fragmentation into account when managing plant invasions and their impact on native communities.
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Affiliation(s)
- Chen Zhu
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Zhejiang University, Zhejiang, China
- Section for Molecular Ecology and Evolution, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Bo Dalsgaard
- Section for Molecular Ecology and Evolution, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Wande Li
- Zhejiang Zhoushan Archipelago Observation and Research Station, Institute of Eco-Chongming, Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
| | - Fernando Gonçalves
- Section for Molecular Ecology and Evolution, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Maximilian G R Vollstädt
- Section for Molecular Ecology and Evolution, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Peng Ren
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Zhejiang University, Zhejiang, China
| | - Xue Zhang
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Zhejiang University, Zhejiang, China
- Section for Molecular Ecology and Evolution, Globe Institute, University of Copenhagen, Copenhagen, Denmark
| | - Junjie Shao
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Zhejiang University, Zhejiang, China
| | - Ping Ding
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Zhejiang University, Zhejiang, China
| | - Xingfeng Si
- Zhejiang Zhoushan Archipelago Observation and Research Station, Institute of Eco-Chongming, Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
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25
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Huang YH, Zhu C, Kondo Y, Anderson AC, Gandhi A, Russell A, Dougan SK, Petersen BS, Melum E, Pertel T, Clayton KL, Raab M, Chen Q, Beauchemin N, Yazaki PJ, Pyzik M, Ostrowski MA, Glickman JN, Rudd CE, Ploegh HL, Franke A, Petsko GA, Kuchroo VK, Blumberg RS. Author Correction: CEACAM1 regulates TIM-3-mediated tolerance and exhaustion. Nature 2024; 626:E19. [PMID: 38336833 DOI: 10.1038/s41586-024-07164-y] [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: 02/12/2024]
Affiliation(s)
- Yu-Hwa Huang
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, 02115, Massachusetts, USA
| | - Chen Zhu
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Harvard Institutes of Medicine, 77 Avenue Louis Pasteur, Boston, 02115, Massachusetts, USA
| | - Yasuyuki Kondo
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, 02115, Massachusetts, USA
| | - Ana C Anderson
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Harvard Institutes of Medicine, 77 Avenue Louis Pasteur, Boston, 02115, Massachusetts, USA
| | - Amit Gandhi
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, 02115, Massachusetts, USA
| | - Andrew Russell
- Rosenstiel Basic Medical Sciences Research Center, Brandeis University, 415 South Street, Waltham, 02454, Massachusetts, USA
| | - Stephanie K Dougan
- Whitehead Institute, Massachusetts Institute of Technology, Cambridge, 02142, Massachusetts, USA
| | - Britt-Sabina Petersen
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel 24105, Germany
| | - Espen Melum
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, 02115, Massachusetts, USA
- Division of Cancer Medicine, Norwegian PSC Research Center, Surgery and Transplantation, Oslo University Hospital, Oslo 0424, Norway
| | - Thomas Pertel
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Harvard Institutes of Medicine, 77 Avenue Louis Pasteur, Boston, 02115, Massachusetts, USA
| | - Kiera L Clayton
- Department of Immunology, University of Toronto, Toronto, Ontario M5S1A8, Canada
| | - Monika Raab
- Department of Pathology, Cell Signalling Section, University of Cambridge, Cambridge CB2 1QP, UK
| | - Qiang Chen
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Nicole Beauchemin
- Goodman Cancer Research Centre, McGill University, Montreal H3G 1Y6, Canada
| | - Paul J Yazaki
- Beckman Institute, City of Hope, Duarte, 91010, California, USA
| | - Michal Pyzik
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, 02115, Massachusetts, USA
| | - Mario A Ostrowski
- Department of Immunology, University of Toronto, Toronto, Ontario M5S1A8, Canada
- Keenan Research Centre of St. Michael's Hospital, Toronto, Ontario M5S1A8, Canada
| | | | - Christopher E Rudd
- Department of Pathology, Cell Signalling Section, University of Cambridge, Cambridge CB2 1QP, UK
| | - Hidde L Ploegh
- Whitehead Institute, Massachusetts Institute of Technology, Cambridge, 02142, Massachusetts, USA
| | - Andre Franke
- Institute of Clinical Molecular Biology, Christian-Albrechts-University of Kiel, Kiel 24105, Germany
| | - Gregory A Petsko
- Rosenstiel Basic Medical Sciences Research Center, Brandeis University, 415 South Street, Waltham, 02454, Massachusetts, USA
| | - Vijay K Kuchroo
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Harvard Institutes of Medicine, 77 Avenue Louis Pasteur, Boston, 02115, Massachusetts, USA
| | - Richard S Blumberg
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, 02115, Massachusetts, USA.
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26
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Su M, Li F, Wang Y, Gao Y, Lan W, Shao Z, Zhu C, Tang N, Gan J, Wu Z, Ji Q. Molecular basis and engineering of miniature Cas12f with C-rich PAM specificity. Nat Chem Biol 2024; 20:180-189. [PMID: 37697004 DOI: 10.1038/s41589-023-01420-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 08/08/2023] [Indexed: 09/13/2023]
Abstract
CRISPR-Cas12f nucleases are currently one of the smallest genome editors, exhibiting advantages for efficient delivery via cargo-size-limited adeno-associated virus delivery vehicles. Most characterized Cas12f nucleases recognize similar T-rich protospacer adjacent motifs (PAMs) for DNA targeting, substantially restricting their targeting scope. Here we report the cryogenic electron microscopy structure and engineering of a miniature Clostridium novyi Cas12f1 nuclease (CnCas12f1, 497 amino acids) with rare C-rich PAM specificity. Structural characterizations revealed detailed PAM recognition, asymmetric homodimer formation and single guide RNA (sgRNA) association mechanisms. sgRNA engineering transformed CRISPR-CnCas12f1, which initially was incapable of genome targeting in bacteria, into an effective genome editor in human cells. Our results facilitate further understanding of CRISPR-Cas12f1 working mechanism and expand the mini-CRISPR toolbox.
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Affiliation(s)
- Mengjiao Su
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Fan Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Yujue Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Yan Gao
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Weiqi Lan
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Zhiwei Shao
- School of Life Sciences, Fudan University, Shanghai, China
| | - Chen Zhu
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Na Tang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Jianhua Gan
- School of Life Sciences, Fudan University, Shanghai, China
| | - Zhaowei Wu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
| | - Quanjiang Ji
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
- Gene Editing Center, School of Life Science and Technology, ShanghaiTech University, Shanghai, China.
- Shanghai Clinical Research and Trial Center, Shanghai, China.
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27
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Ma Z, Wu X, Li H, Cao Z, Zhu C. Access to pyrrolines and fused diaziridines by selective radical addition to homoallylic diazirines. Chem Sci 2024; 15:1879-1884. [PMID: 38303955 PMCID: PMC10829008 DOI: 10.1039/d3sc04886a] [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: 09/16/2023] [Accepted: 12/28/2023] [Indexed: 02/03/2024] Open
Abstract
Pyrroline derivatives are common in bioactive natural products and therapeutic agents. We report here a synthesis of pyrrolines and fused diaziridines by divergent radical cyclization of homoallylic diazirines, which can serve as an internal radical trap and a nitrogen source. This reaction proceeds by selective radical addition to C[double bond, length as m-dash]C or N[double bond, length as m-dash]N bonds followed by intramolecular cyclization. Frontier molecular orbital analysis provides a deep insight into the origin of the selectivity. The reaction demonstrates a new cyclization mode, broad functional group compatibility and high product diversity, and reveals a much broader chemical space for diazirine studies.
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Affiliation(s)
- Zhigang Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Haotian Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
| | - Zhu Cao
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University 199 Ren-Ai Road Suzhou Jiangsu 215123 China
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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28
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Li P, Zhu C, Pan X, Lv B, Pan K. Undrained shear behavior of silty sand with a constant state parameter considering initial stress anisotropy effect. Sci Rep 2024; 14:2213. [PMID: 38278873 PMCID: PMC10817895 DOI: 10.1038/s41598-023-50901-y] [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: 06/12/2023] [Accepted: 12/27/2023] [Indexed: 01/28/2024] Open
Abstract
Field observations in sedimentation and erosion-prone areas indicate that most natural sand deposits may contain a certain amount of non-plastic fines and are often under anisotropic stress conditions. A series of triaxial compression tests were performed on clean and silty sand with fines content fc ranging from 0 to 20% at an initial mean effective stress of p0' = 100 kPa and varying consolidation conditions to understand the impact of initial stress anisotropy on undrained shear behavior. The results indicate that the state parameter ψ is a superior predictor for characterizing the responses of sand-fines mixtures compared to the global void ratio and relative density. A comparison of the behavior of clean and silty sand with a constant ψ (= - 0.03) confirms that the sample with 10% fc exhibits the strongest dilation and greatest shear resistance, irrespective of the consolidation conditions. It is also demonstrated that the initial stress anisotropy with a comparably higher static stress ratio ηs typically diminishes the shear strength of mixtures. However, the influence of initial stress anisotropy on soil stiffness is not unilateral. The sample consolidated to a negative ηs is stiffer than that under isotropic consolidation, while the presence of a positive ηs leads to a decrease in the secant Young's modulus.
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Affiliation(s)
- Peipei Li
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Chen Zhu
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xiaodong Pan
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Bin Lv
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Kun Pan
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310014, China.
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29
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Huang Y, Yang Y, Xue J, Liao Y, Fu X, Zhu C, Li J, Zeng L, Yang Z. Biosynthetic Pathway and Bioactivity of Vanillin, a Highly Abundant Metabolite Distributed in the Root Cortex of Tea Plants ( Camellia sinensis). J Agric Food Chem 2024; 72:1660-1673. [PMID: 38193455 DOI: 10.1021/acs.jafc.3c07206] [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: 01/10/2024]
Abstract
Volatiles are important for plant root stress resistance. The diseases in tea root are serious, causing major losses. The volatile composition in tea root and whether it can resist diseases remain unclear. In this study, the volatile composition in different tea tissues was revealed. The vanillin content was higher in the root (mainly in root cortex) than in aerial parts. The antifungal effects of vanillin on pathogenic fungi in tea root were equal to or greater than those of other metabolites. O-methyltransferase (CsOMT), a key enzyme in one of two biosynthetic pathways of vanillin, converted protocatechualdehyde to vanillin in vitro. Furthermore, its characteristics and kinetic parameters were studied. In Arabidopsis thaliana protoplasts, the transiently expressed CsOMT was localized in the cytoplasm and nucleus. These findings have clarified the formation and bioactivities of volatiles in tea roots and provided a theoretical basis for understanding how tea plants resist root diseases.
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Affiliation(s)
- Yanfei Huang
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Yuhua Yang
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Jinghua Xue
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Yinyin Liao
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Xiumin Fu
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Chen Zhu
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Jianlong Li
- Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Tea Research Institute, No. 6 Dafeng Road, Tianhe District, Guangzhou 510640, China
| | - Lanting Zeng
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
| | - Ziyin Yang
- Guangdong Provincial Key Laboratory of Applied Botany & State Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No.19A Yuquan Road, Beijing 100049, China
- Key Laboratory of Ex Situ Plant Protection and Utilization in South China, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District Guangzhou 510650, China
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30
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Xu L, Zhu C, Lamont S, Zou X, Yang Y, Chen S, Ding J, Vernerey FJ. Programming Motion into Materials Using Electricity-Driven Liquid Crystal Elastomer Actuators. Soft Robot 2024. [PMID: 38265749 DOI: 10.1089/soro.2023.0063] [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] [Indexed: 01/25/2024] Open
Abstract
As thermally driven smart materials capable of large reversible deformations, liquid crystal elastomers (LCEs) have great potential for applications in bionic soft robots, artificial muscles, controllable actuators, and flexible sensors due to their ability to program controllable motion into materials. In this article, we introduce conductive LCE actuators using a liquid metal electrothermal layer and a polyethylene terephthalate substrate. Our LCE actuators can be stimulated at low currents from 2 to 4 A and produce a maximum work density of 9.4 k J ∕ m 3 . We illustrate the potential applications of this system by designing a palm-activated artificial muscle gripper, which can be used to grasp soft objects ranging from 5 to 55 mm in size, and even ring-shaped workpieces with precise external or internal support. Furthermore, inspired by the movement of fruit fly larvae, we designed a new soft robot capable of bioinspired crawling and turning by inducing anisotropic friction with an asymmetric design. Finally, we illustrate advanced motional control by designing an autonomously rotating wheel based on the asymmetric contraction of its spokes. To assist in the production of autonomously moving robots, we provide a thorough characterization of its motion dynamics.
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Affiliation(s)
- Lin Xu
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, PR China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, PR China
| | - Chen Zhu
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, PR China
| | - Samuel Lamont
- Department of Mechanical Engineering and Material Science & Engineering Program, University of Colorado at Boulder, Boulder, Colorado, USA
| | - Xiang Zou
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, PR China
| | - Yabing Yang
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, PR China
| | - Si Chen
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, PR China
| | - Jianning Ding
- School of Mechanical Engineering, Jiangsu University, Zhenjiang, PR China
- School of Mechanical Engineering, Yangzhou University, Yangzhou, PR China
| | - Franck J Vernerey
- Department of Mechanical Engineering and Material Science & Engineering Program, University of Colorado at Boulder, Boulder, Colorado, USA
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Zhu C, Salinas-Sáenz S, Khadka N, Kinzel E. Microsphere photolithography with dynamic angular spectra control for metasurface fabrication. Opt Express 2024; 32:2718-2731. [PMID: 38297794 DOI: 10.1364/oe.511835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/22/2023] [Indexed: 02/02/2024]
Abstract
Microsphere photolithography (MPL) is a promising technique for cost-effective fabrication of large-scale metasurfaces. This approach generates an array of photonic jets by the collimated illumination of self-assembled microspheres. The photonic jets can be precisely steered within the unit cell defined by each microsphere by changing the angle of incidence. This allows for the creation of complex metasurface element geometries. Computer controlled articulation of the substrate relative to a static UV source allows the direct-write of different metasurface elements. However, this is time-consuming and requires registration between each exposure for complex features. This paper investigates a single exposure method with the dynamic continuous angle of incidence control provided by a Digital Micromirror Device (DMD) in the front Fourier plane of the projection system. The grayscale values of the DMD pixels can be adjusted to provide optical proximity correction. Larger patterns can be achieved by scanning the substrate relative to the exposure beam. This approach is demonstrated with the creation of hierarchical patterns. This work greatly simplifies the MPL exposure process for complex resonators and provides potential for full light field control.
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32
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Zheng T, Kelsey K, Zhu C, Pennell KD, Yao Q, Manz KE, Zheng YF, Braun JM, Liu Y, Papandonatos G, Liu Q, Shi K, Brochman S, Buka SL. Adverse birth outcomes related to concentrations of per- and polyfluoroalkyl substances (PFAS) in maternal blood collected from pregnant women in 1960-1966. Environ Res 2024; 241:117010. [PMID: 37696323 DOI: 10.1016/j.envres.2023.117010] [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: 05/19/2023] [Revised: 08/12/2023] [Accepted: 08/27/2023] [Indexed: 09/13/2023]
Abstract
BACKGROUND Prior animal and epidemiological studies suggest that per- and polyfluoroalkyl substances (PFAS) exposure may be associated with reduced birth weight. However, results from prior studies evaluated a relatively small set of PFAS. OBJECTIVES Determine associations of gestational PFAS concentrations in maternal serum samples banked for 60 years with birth outcomes. METHODS We used data from 97 pregnant women from Boston and Providence that enrolled in the Collaborative Perinatal Project (CPP) study (1960-1966). We quantified concentrations of 27 PFAS in maternal serum in pregnancy and measured infant weight, height and ponderal index at birth. Covariate-adjusted associations between 11 PFAS concentrations (>75% detection limits) and birth outcomes were estimated using linear regression methods. RESULTS Median concentrations of PFOA, PFNA, PFHxS, and PFOS were 6.189, 0.330, 14.432, and 38.170 ng/mL, respectively. We found that elevated PFAS concentrations during pregnancy were significantly associated with lower birth weight and ponderal index at birth, but no significant associations were found with birth length. Specifically, infants born to women with PFAS concentrations ≥ median levels had significantly lower birth weight (PFOS: β = -0.323, P = 0.006; PFHxS: β = -0.292, P = 0.015; PFOA: β = -0.233, P = 0.03; PFHpS: β = -0.239, P = 0.023; PFNA: β = -0.239, P = 0.017). Similarly, women with PFAS concentrations ≥ median levels had significantly lower ponderal index (PFHxS: β = -0.168, P = 0.020; PFHxA: β = -0.148, P = 0.018). CONCLUSIONS Using data from this US-based cohort study, we found that 1) maternal PFAS levels from the 1960s exceeded values in contemporaneous populations and 2) that gestational concentrations of certain PFAS were associated with lower birth weight and infant ponderal index. Additional studies with larger sample size are needed to further examine the associations of gestational exposure to individual PFAS and their mixtures with adverse birth outcomes.
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Affiliation(s)
- T Zheng
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA.
| | - K Kelsey
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - C Zhu
- West China School of Public Health, Sichuan University, Sichuan, 610044, China
| | - K D Pennell
- School of Engineering, Brown University, 184 Hope Street, Providence, RI, 02912, USA
| | - Q Yao
- West China School of Public Health, Sichuan University, Sichuan, 610044, China
| | - K E Manz
- School of Engineering, Brown University, 184 Hope Street, Providence, RI, 02912, USA
| | - Y F Zheng
- Department of Gynecology, Hubei Provincial Women and Children Hospital, Wuhan, 430070, China; Wuhan Science and Technology University, Wuhan, 430062, China
| | - J M Braun
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - Y Liu
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - G Papandonatos
- Department of Biostatistics, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - Q Liu
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - K Shi
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - S Brochman
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA
| | - S L Buka
- Department of Epidemiology, Brown School of Public Health, 121 South Main Street, Providence, RI, 02903, USA.
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Fang Y, Huang W, Zhu X, Wang X, Wu X, Wang H, Hong W, Yan S, Zhang L, Deng Y, Wei W, Tu J, Zhu C. Epigenetic Regulatory Axis MIR22-TET3-MTRNR2L2 Represses Fibroblast-Like Synoviocyte-Mediated Inflammation in Rheumatoid Arthritis. Arthritis Rheumatol 2024. [PMID: 38221658 DOI: 10.1002/art.42795] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 01/02/2024] [Accepted: 01/11/2024] [Indexed: 01/16/2024]
Abstract
OBJECTIVE The specific role of fibroblast-like synoviocytes (FLSs) in the pathogenesis of rheumatoid arthritis (RA) is still not fully elucidated. This study aimed to explore the molecular mechanisms of epigenetic pathways, including three epigenetic factors, microRNA (miRNA)-22 (MIR22), ten-eleven translocation methylcytosine dioxygenase 3 (TET3), and MT-RNR2 like 2 (MTRNR2L2), in RA-FLSs. METHODS The expression of MIR22, TET3, and MTRNR2L2 in the synovium of patients with RA and arthritic mice were determined by fluorescence in situ hybridization, quantitative polymerase chain reaction (qPCR), immunohistochemistry, and Western blot. Mir22-/- and Tet3+/- mice were used to establish a collagen antibody-induced arthritis (CAIA) model. Mir22 angomir and Tet3 small interfering RNA (siRNA) were used to illustrate the therapeutic effects on arthritis using a collagen-induced (CIA) model. Bioinformatics, luciferase reporter assay, 5-hydroxymethylcytosine (5hmC) dot blotting, chromatin immunoprecipitation-qPCR, and hydroxymethylated DNA immunoprecipitation were conducted to show the direct repression of MIR22 on the TET3 and transcriptional activation of TET3 on MTRNR2L2. RESULTS The Mir22-/- CAIA model and RA-FLS-related in vitro experiments demonstrated the inhibitory effect of MIR22 on inflammation. MIR22 can directly inhibit the translation of TET3 in RA-FLSs by binding to its 3' untranslated region in TET3. The Tet3+/- mice-established CAIA model showed less severe symptoms of arthritis in vivo. In vitro experiments further confirmed the proinflammatory effect of TET3 in RA. In addition, the CIA model was used to validate the therapeutic effects of Mir22 angomir and Tet3 siRNA. Finally, TET3 exerts its proinflammatory effect by promoting 5hmC production in the promoter of its target MTRNR2L2 in RA-FLSs. CONCLUSION The key role of the MIR22-TET3-MTRNR2L2 pathway in RA-FLSs provided an experimental basis for further studies into the pathogenesis and related targets of RA from the perspective of FLSs.
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Affiliation(s)
- Yilong Fang
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Wei Huang
- The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, China
| | - Xiangling Zhu
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Xinming Wang
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xuming Wu
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Huihui Wang
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Wenming Hong
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shangxue Yan
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Lingling Zhang
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Yujie Deng
- Guangzhou National Laboratory, Guangzhou, China
| | - Wei Wei
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Jiajie Tu
- Anhui Medical University and Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Hefei, China
| | - Chen Zhu
- The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, China
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Xu W, Ren Q, Li J, Xu J, Bai G, Zhu C, Li W. Triboelectric Contact Localization Electronics: A Systematic Review. Sensors (Basel) 2024; 24:449. [PMID: 38257543 PMCID: PMC10819133 DOI: 10.3390/s24020449] [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: 11/10/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024]
Abstract
The growing demand from the extended reality and wearable electronics market has led to an increased focus on the development of flexible human-machine interfaces (HMI). These interfaces require efficient user input acquisition modules that can realize touch operation, handwriting input, and motion sensing functions. In this paper, we present a systematic review of triboelectric-based contact localization electronics (TCLE) which play a crucial role in enabling the lightweight and long-endurance designs of flexible HMI. We begin by summarizing the mainstream working principles utilized in the design of TCLE, highlighting their respective strengths and weaknesses. Additionally, we discuss the implementation methods of TCLE in realizing advanced functions such as sliding motion detection, handwriting trajectory detection, and artificial intelligence-based user recognition. Furthermore, we review recent works on the applications of TCLE in HMI devices, which provide valuable insights for guiding the design of application scene-specified TCLE devices. Overall, this review aims to contribute to the advancement and understanding of TCLE, facilitating the development of next-generation HMI for various applications.
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Affiliation(s)
- Wei Xu
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (W.X.); (Q.R.)
| | - Qingying Ren
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (W.X.); (Q.R.)
| | - Jinze Li
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (J.L.); (J.X.); (G.B.); (C.Z.)
| | - Jie Xu
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (J.L.); (J.X.); (G.B.); (C.Z.)
| | - Gang Bai
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (J.L.); (J.X.); (G.B.); (C.Z.)
| | - Chen Zhu
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (J.L.); (J.X.); (G.B.); (C.Z.)
| | - Wei Li
- College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (W.X.); (Q.R.)
- College of Integrated Circuit Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (J.L.); (J.X.); (G.B.); (C.Z.)
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35
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Hu J, Wang J, Li X, Zhao J, Liu W, Zhu C. Efficient nitrogen removal and substrate usage in integrated fixed-film activated sludge-anammox system under seasonal temperature variation. Bioresour Technol 2024; 391:129946. [PMID: 37907120 DOI: 10.1016/j.biortech.2023.129946] [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: 08/11/2023] [Revised: 10/22/2023] [Accepted: 10/28/2023] [Indexed: 11/02/2023]
Abstract
To elucidate how integrated fixed-film activated sludge (IFAS) system favors nitrogen removal performance under seasonal temperature variations, two push-flow reactors were operated with and without carriers under the same operating conditions. The results show that the IFAS system had significant advantages in shock response and low temperature adaptation, with a nitrogen removal rate of 0.37-0.53 kg-N(m3·d)-1 at the temperature of 8-12 °C. Anammox bacteria on carriers were almost unaffected by temperature variation, and its nitrogen removal contribution rate stabilized at 55 % in the IFAS system. The Haldane model reveals that the specific anammox activity in the IFAS system was 28 % to 49 % higher than that in the control system at 13 °C. Candidatus_Jettenia, with the highest abundance of 45 %, was the dominant species in the IFAS system and preferred to attach to the carriers. This study provides a feasible scheme for the application of anammox process.
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Affiliation(s)
- Juntong Hu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Jianfang Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China; National Local Joint Engineering Laboratory of Urban Domestic Wastewater Resource Utilization Technology, Suzhou 215009, PR China; Jiangsu Collaborative Innovation Center of Water Treatment Technology and Material, Suzhou 215009, PR China; Tianping College, Suzhou University of Science and Technology, Suzhou 215009, PR China.
| | - Xingran Li
- Tianping College, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Junjie Zhao
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Wanting Liu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Chen Zhu
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China
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Liu C, Li J, Li H, Xue J, Wang M, Jian G, Zhu C, Zeng L. Differences in the quality of black tea ( Camellia sinensis var. Yinghong No. 9) in different seasons and the underlying factors. Food Chem X 2023; 20:100998. [PMID: 38144863 PMCID: PMC10739754 DOI: 10.1016/j.fochx.2023.100998] [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] [Received: 08/22/2023] [Revised: 09/18/2023] [Accepted: 11/09/2023] [Indexed: 12/26/2023] Open
Abstract
Spring green tea is usually considered to be better than summer green tea. Whether this phenomenon applies to black tea is unknown. Black tea produced using Camellia sinensis var. Yinghong No. 9 leaves is popular in South China and analyzed in the study. The taste and color quality of the infusion was higher for spring tea than for summer tea. Compared with summer tea, the main catechin contents were lower in spring tea, whereas caffeine and total amino acid contents were higher, especially glutamic acid, which may be responsible for the differences between teas. Moreover, spring tea had a higher theabrownin content and a lower L* value. The compounds contributing to the infusion taste and color were correlated with the chromaticity value (i.e., useful indicator of black tea quality). This study revealed the seasonal differences in Yinghong No. 9 black tea quality and the key underlying factors.
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Affiliation(s)
- Chengshun Liu
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Jianlong Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences & Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, No. 6 Dafeng Road, Tianhe District, Guangzhou 510640, China
| | - Hanxiang Li
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
| | - Jinghua Xue
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
| | - Miao Wang
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Guotai Jian
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Chen Zhu
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
| | - Lanting Zeng
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of Plant Diversity and Specialty Crops, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- South China National Botanical Garden, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
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Jiang L, Xie S, Zhou C, Tian C, Zhu C, You X, Chen C, Lai Z, Guo Y. Analysis of the Genetic Diversity in Tea Plant Germplasm in Fujian Province Based on Restriction Site-Associated DNA Sequencing. Plants (Basel) 2023; 13:100. [PMID: 38202408 PMCID: PMC10780744 DOI: 10.3390/plants13010100] [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: 11/11/2023] [Revised: 12/21/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024]
Abstract
Fujian province, an important tea-producing area in China, has abundant tea cultivars. To investigate the genetic relationships of tea plant cultivars in Fujian province and the characteristics of the tea plant varieties, a total of 70 tea cultivars from Fujian and other 12 provinces in China were subjected to restriction site-associated DNA sequencing (RAD-seq). A total of 60,258,975 single nucleotide polymorphism (SNP) sites were obtained. These 70 tea plant cultivars were divided into three groups based on analyzing the phylogenetic tree, principal component, and population structure. Selection pressure analysis indicated that nucleotide diversity was high in Southern China and genetically distinct from cultivars of Fujian tea plant cultivars, according to selection pressure analysis. The selected genes have significant enrichment in pathways associated with metabolism, photosynthesis, and respiration. There were ten characteristic volatiles screened by gas chromatography-mass spectrometry (GC-MS) coupled with multivariate statistical methods, among which the differences in the contents of methyl salicylate, 3-carene, cis-3-hexen-1-ol, (E)-4-hexen-1-ol, and 3-methylbutyraldehyde can be used as reference indicators of the geographical distribution of tea plants. Furthermore, a metabolome genome-wide association study (mGWAS) revealed that 438 candidate genes were related to the aroma metabolic pathway. Further analysis showed that 31 genes of all the selected genes were screened and revealed the reasons for the genetic differences in aroma among tea plant cultivars in Fujian and Southern China. These results reveal the genetic diversity in the Fujian tea plants as well as a theoretical basis for the conservation, development, and utilization of the Fujian highly aromatic tea plant cultivars.
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Affiliation(s)
- Lele Jiang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.J.); (C.Z.); (C.T.); (Z.L.)
| | - Siyi Xie
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410128, China;
| | - Chengzhe Zhou
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.J.); (C.Z.); (C.T.); (Z.L.)
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Caiyun Tian
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.J.); (C.Z.); (C.T.); (Z.L.)
| | - Chen Zhu
- Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, No. 723 Xingke Road, Tianhe District, Guangzhou 510650, China;
| | - Xiaomei You
- Tea Research Institute, Fujian Academy of Agricultural Sciences, No. 104 Pudang Road, Xindian Town, Jin’an District, Fuzhou 350012, China; (X.Y.); (C.C.)
| | - Changsong Chen
- Tea Research Institute, Fujian Academy of Agricultural Sciences, No. 104 Pudang Road, Xindian Town, Jin’an District, Fuzhou 350012, China; (X.Y.); (C.C.)
| | - Zhongxiong Lai
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.J.); (C.Z.); (C.T.); (Z.L.)
- Institute of Horticultural Biotechnology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yuqiong Guo
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (L.J.); (C.Z.); (C.T.); (Z.L.)
- Anxi College of Tea Science (College of Digital Economy), Fujian Agriculture and Forestry University, Quanzhou 362400, China
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Zhu C, Xu CJ, Wu JN, Zhao W, Hu YL, Yao Y, Ren YY. Association between abnormal uterine artery pulsatility index and the risk of fetal congenital heart defects: a hospital-based cohort study. Sci Rep 2023; 13:22924. [PMID: 38129577 PMCID: PMC10739791 DOI: 10.1038/s41598-023-50167-4] [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: 03/15/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
To explore the associations between high uterine artery pulsatility index (UtA-PI) values and congenital heart disease (CHD) risk and whether they differed between singleton and multiple pregnancies. This hospital-based cohort study involving 52,047 pregnant women who underwent prenatal examinations from 2012 to 2016. Infants born to the included pregnant women were followed until 42 days after birth to identify those with CHDs. Generalized estimating equations were used to estimate the associations of high right UtA-PI (> 95th percentile) values with maternal preeclampsia and fetal CHDs. Logistic regression analyses were conducted using path analysis models to quantify the effect of high right UtA-PI values on fetal CHD risk. A total of 42,552 women and 43,470 infants (147 with CHDs) were included. Preeclampsia risk was associated with a high right UtA-PI in singleton-pregnant women (adjusted PR, 3.01; 95% CI 2.57-3.52). CHD risk was marginally associated with a high right UtA-PI in singleton-pregnant women (adjusted PR, 2.26, 95% CI 1.03-4.95). Considering only two factors, 96.0% of the fetal CHD risk was mediated by preeclampsia in singleton-pregnant women, while 93.8% of the risk was related to a high right UtA-PI in multiple-pregnant women. A high right UtA-PI was marginally associated with an increased fetal CHD risk in singleton-pregnant women and might play an important role in multiple-pregnant women. Further studies are warranted to confirm these findings given the high loss to follow-up rate.
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Affiliation(s)
- Chen Zhu
- Department of Ultrasound, Obstetrics and Gynecology Hospital of Fudan University, No. 588 Fangxie Road, Shanghai, China
| | - Cheng-Jie Xu
- Department of Information Technology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Jiang-Nan Wu
- Department of Clinical Epidemiology, Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China
| | - Wei Zhao
- Department of Ultrasound, Obstetrics and Gynecology Hospital of Fudan University, No. 588 Fangxie Road, Shanghai, China
| | - Yan-Lai Hu
- Department of Ultrasound, Obstetrics and Gynecology Hospital of Fudan University, No. 588 Fangxie Road, Shanghai, China
| | - Ying Yao
- Department of Ultrasound, Obstetrics and Gynecology Hospital of Fudan University, No. 588 Fangxie Road, Shanghai, China
| | - Yun-Yun Ren
- Department of Ultrasound, Obstetrics and Gynecology Hospital of Fudan University, No. 588 Fangxie Road, Shanghai, China.
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Zhao HY, Han JT, Hu DH, Zhou Q, Zhu C, Xu J, Zhang BW, Qi ZS, Liu JQ. [A randomized controlled trial on the effect of exercise prescription based on a progressive mode in treating elderly patients with lower limb dysfunction after deep burns]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:1122-1130. [PMID: 38129298 DOI: 10.3760/cma.j.cn501225-20230721-00012] [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: 12/23/2023]
Abstract
Objective: To explore the effect of exercise prescription based on a progressive mode in treating elderly patients with lower limb dysfunction after deep burns. Methods: A randomized controlled trial was conducted. From January 2021 to January 2023, 60 elderly patients with lower limb dysfunction after deep burns who met the inclusion criteria were admitted to the First Affiliated Hospital of Air Force Medical University. The patients were divided into conventional rehabilitation group (30 cases, 17 males and 13 females, aged (65±3) years) and combined rehabilitation group (30 cases, 16 males and 14 females, aged (64±3) years) according to the random number table. For patients in both groups, the red-light treatment was started after the lower limb wounds healed or when the total area of scattered residual wounds was less than 1% of the total body surface area. After 2 weeks of red-light treatment, the patients in conventional rehabilitation group were given conventional rehabilitation treatments, including joint stretching, resistance, and balance training; in addition to conventional rehabilitation treatments, the patients in combined rehabilitation group were given exercise prescription training based on a progressive mode three times a week, mainly including dumbbell press, Bobath ball horizontal support, and high-level pulldown trainings. The training time for patients in both groups was 12 weeks. Before training (after 2 weeks of red-light treatment) and after 12 weeks of training, the upper limb and lower limb motor functions of the patients were evaluated using the simple Fugl-Meyer scale, the physical fitness of patients was evaluated using the simple physical fitness scale, and the patient's risk of falling was evaluated by the time consumed for the timed up and go test. The adverse events of patients that occurred during training were recorded. After 12 weeks of training, a self-designed satisfaction survey was conducted to investigate patients' satisfaction with the training effect. Data were statistically analyzed with independent sample t test, paired sample t test, Mann-Whitney U test, Wilcoxon signed rank test, and chi-square test. Results: Before training, the scores of upper limb and lower limb motor functions of patients between the two groups were similar (P>0.05). After 12 weeks of training, the scores of upper limb motor function of patients in conventional rehabilitation group and combined rehabilitation group were significantly higher than those before training (with t values of -11.42 and -13.67, respectively, P<0.05), but there was no statistically significant difference between the two groups (P>0.05). The score of lower limb motor function of patients in combined rehabilitation group was 28.9±2.6, which was significantly higher than 26.3±2.6 in conventional rehabilitation group (t=-3.90, P<0.05), and the scores of lower limb motor function of patients in conventional rehabilitation group and combined rehabilitation group were significantly higher than those before training (with t values of -4.14 and -6.94, respectively, P<0.05). Before training, the individual and total scores of physical fitness of patients between the two groups were similar (P>0.05). After 12 weeks of training, the balance ability score, walking speed score, chair sitting score, and total score of physical fitness of patients in conventional rehabilitation group and combined rehabilitation group were significantly increased compared with those before training (with Z values of -4.38, -3.55, -3.88, -4.65, -4.58, -4.68, -4.42, and -4.48, respectively, P<0.05), and the balance ability score, walking speed score, chair sitting score, and total score of physical fitness of patients in combined rehabilitation group were significantly increased compared with those in conventional rehabilitation group (with Z values of -3.93, -3.41, -3.19, and -5.33, P<0.05). Before training, the time consumed for the timed up and go test for patient's risk of falling in the two groups was close (P>0.05). After 12 weeks of training, the time consumed for the timed up and go test for patient's risk of falling in combined rehabilitation group was (28.0±2.1) s, which was significantly shorter than (30.5±1.8) s in conventional rehabilitation group (t=4.94, P<0.05). Moreover, the time consumed for the timed up and go test for patient's risk of falling in both conventional rehabilitation group and combined rehabilitation group was significantly shorter than that before training (with t values of 14.80 and 15.86, respectively, P<0.05). During the training period, no adverse events such as muscle tissue strain, edema, or falling occurred in any patient. After 12 weeks of training, the satisfaction score of patients with the training effect in combined rehabilitation group was 13.5±1.2, which was significantly higher than 8.5±1.4 in conventional rehabilitation group (t=21.78, P<0.05). Conclusions: The exercise prescription training based on a progressive mode can significantly promote the recovery of lower limb motor function and physical fitness of elderly patients with lower limb dysfunction after deep burns, and effectively reduce the patient's risk of falling without causing adverse events during the training period, resulting in patient's high satisfaction with the training effect.
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Affiliation(s)
- H Y Zhao
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J T Han
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - D H Hu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Q Zhou
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - C Zhu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J Xu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - B W Zhang
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - Z S Qi
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
| | - J Q Liu
- Department of Burns and Cutaneous Surgery, Burn Center of PLA, the First Affiliated Hospital, Air Force Medical University, Xi'an 710032, China
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Shen S, Liu X, Guo Q, Liang Q, Wu J, Guan G, Zou C, Zhu C, Yan Z, Liu T, Chen L, Cheng P, Cheng W, Wu A. Tumor microenvironment remodeling plus immunotherapy could be used in mesenchymal-like tumor with high tumor residual and drug resistant rate. Commun Biol 2023; 6:1281. [PMID: 38110614 PMCID: PMC10728080 DOI: 10.1038/s42003-023-05667-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 12/04/2023] [Indexed: 12/20/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT) is a common process during tumor progression and is always related to residual tumor, drug resistance and immune suppression. However, considering the heterogeneity in EMT process, there is still a need to establish robust EMT classification system with reasonable molecular, biological and clinical implications to investigate whether these unfavorable survival factors are common or unique in different individuals. In our work, we classify tumors with four EMT status, that is, EMTlow, EMTmid, EMThigh-NOS (Not Otherwise Specified), and EMThigh-AKT (AKT pathway overactivation) subtypes. We find that EMThigh-NOS subtype is driven by intrinsic somatic alterations. While, EMThigh-AKT subtype is maintained by extrinsic cellular interplay between tumor cells and macrophages in an AKT-dependent manner. EMThigh-AKT subtype is both unresectable and drug resistant while EMThigh-NOS subtype can be treated with cell cycle related drugs. Importantly, AKT activation in EMThigh-AKT not only enhances EMT process, but also contributes to the immunosuppressive microenvironment. By remodeling tumor immune-microenvironment by AKT inhibition, EMThigh-AKT can be treated by immune checkpoint blockade therapies. Meanwhile, we develop TumorMT website ( http://tumormt.neuroscience.org.cn/ ) to apply this EMT classification and provide reasonable therapeutic guidance.
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Affiliation(s)
- Shuai Shen
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xing Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qing Guo
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qingyu Liang
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jianqi Wu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Gefei Guan
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Cunyi Zou
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Chen Zhu
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zihao Yan
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tianqi Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ling Chen
- Department of Neurosurgery, Chinese People's Liberation Army of China (PLA) General Hospital, Medical School of Chinese PLA, Institute of Neurosurgery of Chinese PLA, Beijing, China
| | - Peng Cheng
- Department of Neurosurgery, The First Hospital of China Medical University, Shenyang, Liaoning, China.
| | - Wen Cheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
| | - Anhua Wu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
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Gréa T, Jacquot G, Durand A, Mathieu C, Gasser A, Zhu C, Banerjee M, Hucteau E, Mallard J, Lopez Navarro P, Popescu BV, Thomas E, Kryza D, Sidi-Boumedine J, Ferrauto G, Gianolio E, Fleith G, Combet J, Brun S, Erb S, Cianferani S, Charbonnière LJ, Fellmann L, Mirjolet C, David L, Tillement O, Lux F, Harlepp S, Pivot X, Detappe A. Subcutaneous Administration of a Zwitterionic Chitosan-Based Hydrogel for Controlled Spatiotemporal Release of Monoclonal Antibodies. Adv Mater 2023:e2308738. [PMID: 38105299 DOI: 10.1002/adma.202308738] [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: 08/28/2023] [Revised: 11/14/2023] [Indexed: 12/19/2023]
Abstract
Subcutaneous (SC) administration of monoclonal antibodies (mAbs) is a proven strategy for improving therapeutic outcomes and patient compliance. The current FDA-/EMA-approved enzymatic approach, utilizing recombinant human hyaluronidase (rHuPH20) to enhance mAbs SC delivery, involves degrading the extracellular matrix's hyaluronate to increase tissue permeability. However, this method lacks tunable release properties, requiring individual optimization for each mAb. Seeking alternatives, physical polysaccharide hydrogels emerge as promising candidates due to their tunable physicochemical and biodegradability features. Unfortunately, none have demonstrated simultaneous biocompatibility, biodegradability, and controlled release properties for large proteins (≥150 kDa) after SC delivery in clinical settings. Here, a novel two-component hydrogel comprising chitosan and chitosan@DOTAGA is introduced that can be seamlessly mixed with sterile mAbs formulations initially designed for intravenous (IV) administration, repurposing them as novel tunable SC formulations. Validated in mice and nonhuman primates (NHPs) with various mAbs, including trastuzumab and rituximab, the hydrogel exhibited biodegradability and biocompatibility features. Pharmacokinetic studies in both species demonstrated tunable controlled release, surpassing the capabilities of rHuPH20, with comparable parameters to the rHuPH20+mAbs formulation. These findings signify the potential for rapid translation to human applications, opening avenues for the clinical development of this novel SC biosimilar formulation.
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Affiliation(s)
- Thomas Gréa
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
- Université Claude Bernard Lyon 1, INSA Lyon, Jean Monnet University, CNRS, UMR 5223 Ingénierie des Matériaux Polymères (IMP), Villeurbanne Cedex, 69622, France
| | - Guillaume Jacquot
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Nano-H, St Quentin Fallavier, 38070, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Arthur Durand
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
- MexBrain, 13 avenue Albert Einstein, Villeurbanne, 69100, France
| | - Clélia Mathieu
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Adeline Gasser
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Chen Zhu
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
| | - Mainak Banerjee
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
| | - Elyse Hucteau
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Biomedicine Research Centre of Strasbourg (CRBS), Mitochondria, oxidative stress, and muscular protection laboratory (UR 3072), Strasbourg, 67000, France
| | - Joris Mallard
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Biomedicine Research Centre of Strasbourg (CRBS), Mitochondria, oxidative stress, and muscular protection laboratory (UR 3072), Strasbourg, 67000, France
| | - Pedro Lopez Navarro
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Bogdan V Popescu
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Eloise Thomas
- LAGEPP University Claude Bernard Lyon 1, CNRS UMR 5007, Villeurbanne Cedex, 69622, France
| | - David Kryza
- LAGEPP University Claude Bernard Lyon 1, CNRS UMR 5007, Villeurbanne Cedex, 69622, France
- Imthernat Plateform, Hospices Civils of Lyon, Lyon, 69002, France
| | - Jacqueline Sidi-Boumedine
- LAGEPP University Claude Bernard Lyon 1, CNRS UMR 5007, Villeurbanne Cedex, 69622, France
- Imthernat Plateform, Hospices Civils of Lyon, Lyon, 69002, France
| | - Giuseppe Ferrauto
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, 10124, Italy
| | - Eliana Gianolio
- Molecular Imaging Center, Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, 10124, Italy
| | - Guillaume Fleith
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, 67034, Strasbourg Cedex 2, BP 84047, France
| | - Jérôme Combet
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, 67034, Strasbourg Cedex 2, BP 84047, France
| | | | - Stéphane Erb
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC UMR 7178, University of Strasbourg, CNRS, Strasbourg, 67087, France
- Infrastructure Nationale de Protéomique ProFI - FR2048, Strasbourg, 67087, France
| | - Sarah Cianferani
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC UMR 7178, University of Strasbourg, CNRS, Strasbourg, 67087, France
- Infrastructure Nationale de Protéomique ProFI - FR2048, Strasbourg, 67087, France
| | - Loïc J Charbonnière
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
| | - Lyne Fellmann
- SILABE, Université of Strasbourg, fort Foch, Niederhausbergen, 67207, France
| | - Céline Mirjolet
- Radiation Oncology Department, Preclinical Radiation Therapy and Radiobiology Unit, Centre Georges-François Leclerc, Unicancer, Dijon, 21000, France
- TIReCS team, INSERM UMR 1231, Dijon, 21000, France
| | - Laurent David
- Université Claude Bernard Lyon 1, INSA Lyon, Jean Monnet University, CNRS, UMR 5223 Ingénierie des Matériaux Polymères (IMP), Villeurbanne Cedex, 69622, France
| | - Olivier Tillement
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
| | - François Lux
- Institut Lumière Matière, UMR 5306, Université Claude Bernard Lyon1-CNRS, University of Lyon, Villeurbanne Cedex, 69622, France
- University Institute of France (IUF), Paris, 75231, France
| | - Sébastien Harlepp
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Xavier Pivot
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
| | - Alexandre Detappe
- Institute of Cancerology Strasbourg Europe (ICANS), Strasbourg, 67000, France
- Strasbourg Drug Discovery and Development Institute (IMS), Strasbourg, 67000, France
- Equipe de Synthèse Pour l'Analyse, Institut Pluridisciplinaire Hubert Curien (IPHC), UMR 7178 CNRS/University of Strasbourg, Strasbourg, Cedex 2 67087, France
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Akbar I, Tang R, Baillargeon J, Roy AP, Doss PMIA, Zhu C, Kuchroo VK, Rangachari M. Cutting Edge: Serpine1 Negatively Regulates Th1 Cell Responses in Experimental Autoimmune Encephalomyelitis. J Immunol 2023; 211:1762-1766. [PMID: 37909848 DOI: 10.4049/jimmunol.2300526] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
Th1 cells are critical in experimental autoimmune encephalomyelitis (EAE). Serine protease inhibitor clade E1 (Serpine1) has been posited as an inhibitor of IFN-γ from T cells, although its role in autoimmunity remains unclear. In this study, we show that Serpine1 knockout (KO) mice develop EAE of enhanced severity relative to wild-type (WT) controls. Serpine1 overexpression represses Th1 cell cytokine production and pathogenicity, whereas Serpine1-KO:2D2 Th1 cells transfer EAE of increased severity in comparison with WT 2D2 Th1 cells. Notably, polarized Serpine1-KO Th1 cells display delayed expression of the Th1-specific inhibitory receptor, Tim-3 (T cell Ig and mucin-domain containing-3). Serpine1-KO:Tim-3-Tg Th1 cells, which transgenically overexpress Tim-3, showed increased expression of IFN-γ and reduced expression of the checkpoint molecules Lag-3 and PD-1 relative to WT Tim-3-Tg counterparts. Furthermore, Serpine1 deficiency restored the EAE phenotype of Tim-3-Tg mice that normally develop mild disease. Taken together, we identify Serpine1 as a negative regulator of Th1 cells.
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Affiliation(s)
- Irshad Akbar
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
| | - Ruihan Tang
- Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA
| | - Joanie Baillargeon
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
| | - Andrée-Pascale Roy
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
| | | | - Chen Zhu
- Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA
| | - Vijay K Kuchroo
- Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA
- Ann Romney Center for Neurologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, MA
| | - Manu Rangachari
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Québec, Québec, Canada
- Department of Molecular Medicine, Laval University, Québec, Québec, Canada
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43
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Wei Y, Zhu C. Protocol for the synthesis of homoallenic alcohols via allenyl radical-mediated allenylation of alkenes. STAR Protoc 2023; 4:102598. [PMID: 37756157 PMCID: PMC10542638 DOI: 10.1016/j.xpro.2023.102598] [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: 06/30/2023] [Revised: 07/29/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Homoallenic alcohols are versatile building blocks to access complex molecules in synthetic chemistry. We present a protocol for accessing homoallenic alcohols by an allenyl radical-involved radical-polar crossover process. We describe steps for preparing solvents and the photoreactor and synthesizing 5-methyl-1-phenyl-3-tosylhexa-3,4-dien-1-ol 3 in 85% yield. In addition, 5-methyl-1-phenyl-3-tosylhexa-3,4-dien-1-ol 3 has been successfully synthesized in 2-mmol scale. This protocol is also applicable to the synthesis of homoallenic amides. For complete details on the use and execution of this protocol, please refer to Wei et al. (2023).1.
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Affiliation(s)
- Yunlong Wei
- Institute of Life Science and Green Development, College of Life Science, Hebei University, Baoding 071002, China.
| | - Chen Zhu
- Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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44
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Yi L, Zhu C, Chen X, Yue H, Ji T, Ma Y, Cao Y, Kancherla R, Rueping M. O-H bond activation of β,γ-unsaturated oximes via hydrogen atom transfer (HAT) and photoredox dual catalysis. Chem Sci 2023; 14:14271-14279. [PMID: 38098711 PMCID: PMC10718179 DOI: 10.1039/d3sc04410f] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/10/2023] [Indexed: 12/17/2023] Open
Abstract
Hydrogen atom transfer (HAT) and photoredox dual catalysis provides a unique opportunity in organic synthesis, enabling the direct activation of C/Si/S-H bonds. However, the activation of O-H bonds of β,γ-unsaturated oximes poses a challenge due to their relatively high redox potential, which exceeds the oxidizing capacity of most currently developed photocatalysts. We here demonstrate that the combination of HAT and photoredox catalysis allows the activation of O-H bond of β,γ-unsaturated oximes. The strategy effectively addresses the oxime's high redox potential and offers a universal pathway for iminoxyl radical formation. Leveraging the versatility of this approach, a diverse array of valuable heterocycles have been synthesized with the use of different radical acceptors. Mechanistic studies confirm a HAT process for the O-H bond activation.
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Affiliation(s)
- Liang Yi
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Chen Zhu
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Xiangyu Chen
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Huifeng Yue
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Tengfei Ji
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Yiqiao Ma
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Yuanyuan Cao
- Institute of Organic Chemistry, RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Rajesh Kancherla
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
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Coliat P, Erb S, Diemer H, Karouby D, Martin T, Banerjee M, Zhu C, Demarchi M, Cianférani S, Detappe A, Pivot X. Influence of pneumatic transportation on the stability of monoclonal antibodies. Sci Rep 2023; 13:21875. [PMID: 38072852 PMCID: PMC10710995 DOI: 10.1038/s41598-023-49235-6] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
Pneumatic transportation systems (PTS) were recently proposed as a method to carry ready-for-injection diluted monoclonal antibodies (mAbs) from the pharmacy to the bedside of patients. This method reduces transportation time and improves the efficiency of drug distribution process. However, mAbs are highly sensitive molecules for which subtle alterations may lead to deleterious clinical effects. These alterations can be caused by various external factors such as temperature, pH, pressure, and mechanical forces that may occur during transportation. Hence, it is essential to ensure that the mAbs transported by PTS remain stable and active throughout the transportation process. This study aims to determine the safety profile of PTS to transport 11 routinely used mAbs in a clinical setting through assessment of critical quality attributes (CQA) and orthogonal analysis. Hence, we performed aggregation/degradation profiling, post-translational modifications identification using complementary mass spectrometry-based methods, along with visible and subvisible particle formation determination by light absorbance and light obscuration analysis. Altogether, these results highlight that PTS can be safely used for this purpose when air is removed from the bags during preparation.
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Affiliation(s)
- Pierre Coliat
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France.
| | - Stéphane Erb
- Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
- Institut du Médicament Strasbourg, Strasbourg, France
- Infrastructure Nationale de Protéomique ProFI-FR2048, Strasbourg, France
| | - Hélène Diemer
- Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
- Institut du Médicament Strasbourg, Strasbourg, France
- Infrastructure Nationale de Protéomique ProFI-FR2048, Strasbourg, France
| | - Dan Karouby
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
| | - Tristan Martin
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
| | - Mainak Banerjee
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
| | - Chen Zhu
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
| | - Martin Demarchi
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
| | - Sarah Cianférani
- Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
- Institut du Médicament Strasbourg, Strasbourg, France
- Infrastructure Nationale de Protéomique ProFI-FR2048, Strasbourg, France
| | - Alexandre Detappe
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
- Institut Pluridisciplinaire Hubert Curien, CNRS UMR7178, Université de Strasbourg, Strasbourg, France
- Institut du Médicament Strasbourg, Strasbourg, France
| | - Xavier Pivot
- Institut de Cancérologie Strasbourg Europe, ICANS, 17 Rue Albert Calmette, Strasbourg, France
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Zhu C, Wang Z, Sun B, Yue Y. Urban digital economy, environmental pollution, and resident's health-empirical evidence from China. Front Public Health 2023; 11:1238670. [PMID: 38145072 PMCID: PMC10740213 DOI: 10.3389/fpubh.2023.1238670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 11/20/2023] [Indexed: 12/26/2023] Open
Abstract
In light of China's rapid advancement in the digital economy and the implementation of the "Healthy China" initiative, it is crucial to assess the impact of the digital economy on residents' health. This study analyzes data from the 2012, 2014, and 2016 China Labor Force Dynamics Survey (CLDS) to evaluate the health of residents using both subjective and objective criteria. Furthermore, it calculates the digital economy development index for Chinese cities and investigates its influence on the subjective and objective health of residents, along with the underlying mechanisms. The empirical results reveal a U-shaped pattern in the effect of the digital economy on health levels, initially detrimental but subsequently beneficial. The analysis of mechanisms shows that the digital economy's development initially increases and then decreases environmental pollution, impacting health through environmental changes. Additionally, the study finds variations in this impact based on age and urban-rural differences, with more pronounced effects on rural and older adult populations, who also experience the U-shaped curve's turning point more rapidly. These findings highlight the necessity of advancing digital economy infrastructure to positively influence environmental quality and improve public health. The study emphasizes the urgent need for policymakers to invest in digital infrastructure to foster a sustainable and healthy future. This requires a holistic approach to development, focusing on both urban and rural areas, to promote inclusive growth and reduce the digital divide.
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Affiliation(s)
- Chen Zhu
- Business School, Yangzhou University, Yangzhou, China
| | - Zekai Wang
- Business School, Yangzhou University, Yangzhou, China
| | - Bin Sun
- School of Economics, Dongbei University of Finance and Economics, Dalian, China
| | - Yuanyuan Yue
- School of Marxism, Dongbei University of Finance and Economics, Dalian, China
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Yang Y, Chen Y, Wang Y, Wang J, Lu B, Zhu W, Yang N, Zhu J, Zhu C, Zhang X. The landscape of patellofemoral arthroplasty research: a bibliometric analysis. Arthroplasty 2023; 5:65. [PMID: 38042843 PMCID: PMC10693710 DOI: 10.1186/s42836-023-00215-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/25/2023] [Indexed: 12/04/2023] Open
Abstract
PURPOSE Patellofemoral arthroplasty (PFA) was shown to be a potentially effective surgical technique for isolated patellofemoral osteoarthritis but varying reports on PFA-related implant failure and complications have rendered the procedure controversial. This study aimed to identify impactful publications, research interests/efforts, and collaborative networks in the field of PFA research. METHODS The study used the Web of Science Core Collection (WOSCC) database, Medline, Springer, BIOSIS Citation Index, and PubMed to retrieve relevant publications on PFA research published between 1950-2022. Statistical tests in R software were used for analysis while VOSviewer, Bibliometrix, and CiteSpace were employed for data visualization. RESULTS Two hundred forty-one articles were analyzed with the number of published papers increasing over time. Knee was the most frequent journal and Clinical Orthopaedics and Related Research was the most cited journal. Clinical outcomes, such as prosthesis survival, revision, and complications, were researched most frequently as demonstrated by keyword analysis. The United States was the top contributor to cooperative networks, followed by the United Kingdom while Technical University Munich formed close ties among authors. CONCLUSION Publications on PFA research have witnessed a notable surge. They primarily came from a limited number of centers and were characterized by low-level evidence. The majority of studies primarily focused on the clinical outcomes of PFA, while revision of PFA and patient satisfaction have emerged as new research areas.
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Affiliation(s)
- Yao Yang
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230061, China
| | - Yuan Chen
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230061, China
| | - Yingjie Wang
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230061, China
| | - Junjie Wang
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230061, China
| | - Baoliang Lu
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China
- Department of Orthopedics, Graduate School of Bengbu Medical College, Bengbu, 233030, China
| | - Wanbo Zhu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Ning Yang
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China
| | - Junchen Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, 230061, China.
| | - Chen Zhu
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China.
| | - Xianzuo Zhang
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, 230001, China.
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Yang Y, Wang Y, Chen Y, Wang J, Lu B, Zhu W, Zhu J, Zhu C, Zhang X. Tracing the evolution of robotic-assisted total knee arthroplasty: a bibliometric analysis of the top 100 highly cited articles. J Robot Surg 2023; 17:2973-2985. [PMID: 37882976 DOI: 10.1007/s11701-023-01742-4] [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: 08/10/2023] [Accepted: 10/06/2023] [Indexed: 10/27/2023]
Abstract
Robotic-assisted surgical systems hold promise in enhancing total knee arthroplasty (TKA) outcomes and patients' quality of life. This study aims to comprehensively analyze the literature on robot-assisted total knee arthroplasty (r-TKA), providing insights into its current development, clinical application, and research trends. A systematic search was conducted in the Web of Science Core Collection (WOSCC) to identify relevant articles. Data were collected from the top 100 highly cited articles. Article evidence levels were assessed following established guidelines. Statistical analyses and visualizations were performed to reveal publication trends, citations, research hotspots, and collaborative networks. The analysis covered 100 highly cited articles meeting the research criteria, with a focus on the last five years. The United States emerged as a major contributor, with most publications and citations in the Journal of Knee Surgery and Knee Surgery Sports Traumatology Arthroscopy. Research priorities revolved around clinical outcomes, accuracy, and alignment of r-TKA. Notably, higher evidence levels correlated with more citations, indicating greater attention. Interest in and research on r-TKA is steadily increasing, with a few countries at the forefront of these endeavors. While numerous studies have already reported short- to medium-term follow-up results, it is crucial to conduct longer-term investigations to gain a more comprehensive understanding of the clinical benefits that r-TKA offers compared to conventional techniques. Through ongoing research and a greater embrace of robotic technology, we can continue to improve the quality of life for patients undergoing knee arthroplasty.
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Affiliation(s)
- Yao Yang
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, China
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Yingjie Wang
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, China
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Yuan Chen
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, China
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Junjie Wang
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, China
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Baoliang Lu
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
- Graduate School of Bengbu Medical College, Bengbu, China
| | - Wanbo Zhu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China.
| | - Junchen Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui Province, China.
| | - Chen Zhu
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.
| | - Xianzuo Zhang
- Division of Life Sciences and Medicine, Department of Orthopedics, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.
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Zhu C, Shi Y, Yu J, Zhao W, Li L, Liang J, Yang X, Zhang B, Zhao Y, Gao Y, Chen X, Yang X, Zhang L, Guddat LW, Liu L, Yang H, Rao Z, Li J. Cryo-EM structures of a prokaryotic heme transporter CydDC. Protein Cell 2023; 14:919-923. [PMID: 37144855 PMCID: PMC10691846 DOI: 10.1093/procel/pwad022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/12/2023] [Accepted: 04/17/2023] [Indexed: 05/06/2023] Open
Affiliation(s)
- Chen Zhu
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen 518112, China
| | - Yanfeng Shi
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jing Yu
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wenhao Zhao
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Lingqiao Li
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Jingxi Liang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300353, China
| | - Xiaolin Yang
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen 518112, China
| | - Bing Zhang
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Yao Zhao
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen 518112, China
| | - Yan Gao
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiaobo Chen
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xiuna Yang
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Lu Zhang
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Luke W Guddat
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Lei Liu
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen 518112, China
| | - Haitao Yang
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Zihe Rao
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen 518112, China
- Laboratory of Structural Biology, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300353, China
- Innovative Center for Pathogen Research, Guangzhou Laboratory, Guangzhou 510005, China
| | - Jun Li
- Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- National Clinical Research Center for Infectious Disease, Shenzhen Third People’s Hospital, Shenzhen 518112, China
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50
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Yu FY, Zheng K, Wu YF, Gao SW, Weng QY, Zhu C, Wu YP, Li M, Qin ZN, Lou JF, Chen ZH, Ying SM, Shen HH, Li W. Rapamycin Exacerbates Staphylococcus aureus Pneumonia by Inhibiting mTOR-RPS6 in Macrophages. J Inflamm Res 2023; 16:5715-5728. [PMID: 38053607 PMCID: PMC10695130 DOI: 10.2147/jir.s434483] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/17/2023] [Indexed: 12/07/2023] Open
Abstract
Purpose This study aimed to explore the effect of Rapamycin (Rapa) in Staphylococcus aureus (S. aureus) pneumonia and clarify its possible mechanism. Methods We investigated the effects of Rapa on S. aureus pneumonia in mouse models and in macrophages cultured in vitro. Two possible mechanisms were investigated: the mTOR-RPS6 pathway phosphorylation and phagocytosis. Furthermore, for the mechanism verification in vivo, mice with specific Mtor knockout in myeloid cells were constructed for pneumonia models. Results Rapa exacerbated S. aureus pneumonia in mouse models, promoting chemokines secretion and inflammatory cells infiltration in lung. In vitro, Rapa upregulated the secretion of chemokines and cytokines in macrophages induced by S. aureus. Mechanistically, the mTOR-ribosomal protein S6 (RPS6) pathway in macrophages was phosphorylated in response to S. aureus infection, and the inhibition of RPS6 phosphorylation upregulated the inflammation level. However, Rapa did not increase the phagocytic activity. Accordingly, mice with specific Mtor knockout in myeloid cells experienced more severe S. aureus pneumonia. Conclusion Rapa exacerbates S. aureus pneumonia by increasing the inflammatory levels of macrophages. Inhibition of mTOR-RPS6 pathway upregulates the expression of cytokines and chemokines in macrophages, thus increases inflammatory cells infiltration and exacerbates tissue damage.
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Affiliation(s)
- Fang-Yi Yu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Kua Zheng
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Yin-Fang Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Shen-Wei Gao
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Qing-Yu Weng
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Chen Zhu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Yan-Ping Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Miao Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Zhong-Nan Qin
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Jia-Fei Lou
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Song-Min Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Hua-Hao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, People’s Republic of China
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