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Wang C, Zhong L, Xu J, Zhuang Q, Gong F, Chen X, Tao H, Hu C, Huang F, Yang N, Li J, Zhao Q, Sun X, Huo Y, Chen Q, Zhao Y, Peng R, Liu Z. Oncolytic mineralized bacteria as potent locally administered immunotherapeutics. Nat Biomed Eng 2024:10.1038/s41551-024-01191-w. [PMID: 38514774 DOI: 10.1038/s41551-024-01191-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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 02/17/2024] [Indexed: 03/23/2024]
Abstract
Oncolytic bacteria can trigger innate immune activity. However, the antitumour efficacy of inactivated bacteria is poor, and attenuated live bacteria pose substantial safety risks. Here we show that intratumourally injected paraformaldehyde-fixed bacteria coated with manganese dioxide potently activate innate immune activity, modulate the immunosuppressive tumour microenvironment and trigger tumour-specific immune responses and abscopal antitumour responses. A single intratumoural administration of mineralized Salmonella typhimurium suppressed the growth of multiple types of subcutaneous and orthotopic tumours in mice, rabbits and tree shrews and protected the cured animals against tumour rechallenge. We also show that mineralized bacteria can be administered via arterial embolization to treat orthotopic liver cancer in rabbits. Our findings support the further translational testing of oncolytic mineralized bacteria as potent and safe antitumour immunotherapeutics.
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Affiliation(s)
- Chenya Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Liping Zhong
- National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Jiachen Xu
- Department of Interventional Radiology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Fei Gong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Xiaojing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Huiquan Tao
- InnoBM Pharmaceuticals Co. Ltd., Suzhou, China
| | - Cong Hu
- National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Fuquan Huang
- National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Nailin Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Junyan Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Qi Zhao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
- InnoBM Pharmaceuticals Co. Ltd., Suzhou, China
| | - Xinjun Sun
- National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Yu Huo
- National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Qian Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Yongxiang Zhao
- National Center for International Research of Biotargeting Theranostics, Guangxi Key Laboratory of Biotargeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China.
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China.
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China.
- InnoBM Pharmaceuticals Co. Ltd., Suzhou, China.
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Zhuang Q, Kang LL, Zhang BY, Li ZF, Li G. Remarkable water-mediated proton conductivity of two porous zirconium(IV)/hafnium(IV) metal-organic frameworks bearing porphyrinlcarboxylate ligands. J Colloid Interface Sci 2024; 657:482-490. [PMID: 38070334 DOI: 10.1016/j.jcis.2023.12.026] [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: 09/05/2023] [Revised: 11/23/2023] [Accepted: 12/05/2023] [Indexed: 01/02/2024]
Abstract
Obtaining crystalline materials with high structural stability as well as super proton conductivity is a challenging task in the field of energy and material chemistry. Therefore, two highly stable metal-organic frameworks (MOFs) with macro-ring structures and carboxylate groups, Zr-TCPP (1) and Hf-TCPP (2) assembled from low-toxicity as well as highly coordination-capable Zr(IV)/Hf(IV) cations and the multifunctional linkage, meso-tetra(4-carboxyphenyl)porphine (TCPP) have attracted our strong interest. Note that TCPP as a large-size rigid ligand with high symmetry and multiple coordination sites contributes to the formation of the two stable MOFs. Moreover, the pores with large sizes in the two MOFs favor the entry of more guest water molecules and thus result in high H2O-assisted proton conductivity. First, their distinguished structural stabilities covering water, thermal and chemical stabilities were verified by various determination approaches. Second, the dependence of the proton conductivity of the two MOFs on temperature and relative humidity (RH) is explored in depth. Impressively, MOFs 1 and 2 demonstrated the optimal proton conductivities of 4.5 × 10-4 and 0.78 × 10-3 S·cm-1 at 100 °C/98 % RH, respectively. Logically, based on the structural information, gas adsorption/desorption features, and activation energy values, their proton conduction mechanism was deduced and highlighted.
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Affiliation(s)
- Qi Zhuang
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Lu-Lu Kang
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Bao-Yue Zhang
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, PR China
| | - Zi-Feng Li
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, PR China.
| | - Gang Li
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, PR China.
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Wang A, Chen M, Zhuang Q, Guan L, Xie W, Wang L, Huang W, Cheng Z, Yu S, Zhou H, Shen J. Corrigendum: Time to clinical improvement: an appropriate surrogate endpoint for pulmonary arterial hypertension medication trials. Front Cardiovasc Med 2024; 11:1371699. [PMID: 38450377 PMCID: PMC10916790 DOI: 10.3389/fcvm.2024.1371699] [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: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 03/08/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fcvm.2023.1142721.].
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Affiliation(s)
- An Wang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Mengqi Chen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Zhuang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lihua Guan
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weiping Xie
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lan Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wei Huang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhaozhong Cheng
- Respiratory Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shiyong Yu
- Department of Cardiology, The Second Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hongmei Zhou
- Congenital Heart Disease Center, Wuhan Asia Heart Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Jieyan Shen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Zhuang Q, Chao T, Wu Y, Wei T, Ren J, Cao Z, Peng R, Liu Z. Fluorocarbon Modified Chitosan to Enable Transdermal Immunotherapy for Melanoma Treatment. Small 2023; 19:e2303634. [PMID: 37467294 DOI: 10.1002/smll.202303634] [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: 04/30/2023] [Revised: 07/03/2023] [Indexed: 07/21/2023]
Abstract
Despite the rapid development of the immune checkpoint blockade (ICB) in melanoma treatment, the immunosuppressive tumor microenvironment (TME) still hinders the efficacy of immunotherapy. Recently, using agonists to modulate the TME have presented promising clinical responses in combination with ICB therapies. However, local intratumoral injection as the commonly used administration route for immune agonists would lead to low patient compliance. Herein, it is demonstrated that fluorocarbon modified chitosan (FCS) can self-assemble with immune adjuvant polyriboinosinic:polyribocytidylic acid (poly(I:C)), forming nanoparticles that can penetrate through cutaneous barriers to enable transdermal delivery. FCS/poly(I:C) can efficiently activate various types of cells presented on the transdermal route (through the skin into the TME), leading to IRF3-mediated IFN-β induction in the activated cells for tumor repression. Furthermore, transdermal FCS/poly(I:C) treatment can significantly magnify the efficacy of the programmed cell death protein 1 (PD-1) blockade in melanoma treatment through activating the immunosuppressive TME. This study approach offered an attractive transdermal approach in combined with ICB therapy for combined immunotherapy, particularly suitable for melanoma treatment.
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Affiliation(s)
- Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Ting Chao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Yuanyuan Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Ting Wei
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- InnoBM Pharmaceuticals, Suzhou, Jiangsu, 215123, China
| | - Jiacheng Ren
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Zhiqing Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu, 215123, China
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Zhuang Q, Chen S, Xu K, Kang L, Li Z, Li G. Syntheses and High Proton Conductivities of Two 3D Zr(IV)/Hf(IV)-MOFs from Furandicarboxylic Acid. Inorg Chem 2023; 62:11570-11580. [PMID: 37434493 DOI: 10.1021/acs.inorgchem.3c01258] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
With the gradual progress of research on proton-conducting metal-organic framework (MOFs), it has become a challenging task to find MOF materials that are easy to prepare and have low toxicity, high stability, and splendid proton conductivity. With the abovementioned objectives in mind, we selected the non-toxic organic ligand 2,5-furandicarboxylic acid and the low toxic quadrivalent metals zirconium(IV) or hafnium(IV) as starting materials and successfully obtained 2 three-dimensional porous MOFs, [M6O4(OH)4(FDC)4(OH)4(H2O)4] [M = ZrIV (1) and HfIV (2)], with ultrahigh water stability using a rapid and green synthesis approach. Their proton conductive ability is remarkable, thanks to the large number of Lewis acidic sites contained in their porous frameworks and the abundant H-bonding network, hydroxyl groups, as well as coordination and crystalline water molecules. The positive correlation of their proton conductivity with relative humidity (RH) and the temperature was observed. Notably, their optimized proton conductivities are 2.80 × 10-3 S·cm-1 of 1 and 3.38 × 10-3 S·cm-1 of 2 under 100 °C/98% RH, which are at the forefront of Zr(IV)/Hf(IV) MOFs with prominent proton conductivity. Logically, their framework features, nitrogen/water adsorption/desorption data, and activation energy values are integrated to deduce their proton conductivity and conducting mechanism differences.
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Affiliation(s)
- Qi Zhuang
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, Henan, P.R. China
| | - Shizhong Chen
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, Henan, P.R. China
| | - Kaiyin Xu
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, Henan, P.R. China
| | - Lulu Kang
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, Henan, P.R. China
| | - Zifeng Li
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, Henan, P.R. China
| | - Gang Li
- College of Chemistry and Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, Henan, P.R. China
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Wang A, Chen M, Zhuang Q, Guan L, Xie W, Wang L, Huang W, Cheng Z, Yu S, Zhou H, Shen J. Time to clinical improvement: an appropriate surrogate endpoint for pulmonary arterial hypertension medication trials. Front Cardiovasc Med 2023; 10:1142721. [PMID: 37378404 PMCID: PMC10291317 DOI: 10.3389/fcvm.2023.1142721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/17/2023] [Indexed: 06/29/2023] Open
Abstract
Background Many retrospective studies suggest that risk improvement may be a suitable efficacy surrogate endpoint for pulmonary arterial hypertension (PAH) medication trials. This prospective multicenter study assessed the efficacy of domestic ambrisentan in Chinese PAH patients and observed risk improvement and time to clinical improvement (TTCI) under ambrisentan treatment. Methods Eligible patients with PAH were enrolled for a 24-week treatment with ambrisentan. The primary efficacy endpoint was 6-min walk distance (Δ6MWD). The exploratory endpoints were risk improvement and TTCI, defined as the time from initiation of treatment to the first occurrence of risk improvement. Results A total of 83 subjects were enrolled. After ambrisentan treatment, Δ6MWD was significantly increased at week 12 (42.2 m, P < 0.0001) and week 24 (53.4 m, P < 0.0001). Within 24 weeks, risk improvement was observed in 53 (64.6%) subjects (P < 0.0001), which is higher than WHO-FC (30.5%) and TAPSE/PASP (32.9%). Kaplan-Meier analysis of TTCI showed a median improvement time of 131 days and a cumulative improvement rate of 75.1%. Also, TTCI is consistent across different baseline risk status populations (log-rank P = 0.51). The naive group had more risk improvement (P = 0.043) and shorter TTCI (log-rank P = 0.008) than the add-on group, while Δ6MWD did not show significant differences between the two groups. Conclusions Domestic ambrisentan significantly improved the exercise capacity and risk status of Chinese PAH patients. TTCI has a relatively high positive event rate within 24-week treatment duration. Compared to Δ6MWD, TTCI is not affected by baseline risk status. Additionally, TTCI could identify better improvements in patients, which Δ6MWD does not detect. TTCI is an appropriate composite surrogate endpoint for PAH medication trials. Clinical Trial Registration NCT No. [ClinicalTrials.gov], identifier [NCT05437224].
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Affiliation(s)
- An Wang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Mengqi Chen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Zhuang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lihua Guan
- Department of Cardiology, Shanghai Institute of Cardiovascular Disease, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weiping Xie
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lan Wang
- Department of Cardio-Pulmonary Circulation, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Wei Huang
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhaozhong Cheng
- Respiratory Department, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Shiyong Yu
- Department of Cardiology, The Second Affiliated Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hongmei Zhou
- Congenital Heart Disease Center, Wuhan Asia Heart Hospital, Wuhan University of Science and Technology, Wuhan, China
| | - Jieyan Shen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Chen S, Tao L, Zhu F, Wang Z, Zhuang Q, Li Y, Yang Y, Feng C, Shi H, Shi J, Zhu L, Xiao L, Geng D, Wang Z. BushenHuoxue decoction suppresses M1 macrophage polarization and prevents LPS induced inflammatory bone loss by activating AMPK pathway. Heliyon 2023; 9:e15583. [PMID: 37153438 PMCID: PMC10160506 DOI: 10.1016/j.heliyon.2023.e15583] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 05/09/2023] Open
Abstract
Abnormal bone metabolism and subsequence osteoporotic fractures are common complications of chronic inflammatory diseases. No effective treatment for these bone-related complications is available at present. The chronic inflammatory state in these diseases has been considered as a key factor of bone loss. Therefore, the combination of inflammation inhibition and bone loss suppression may be an important strategy for reducing bone damage associated with inflammatory diseases. Bushen Huoxue Decoction (BSHXD) is a traditional Chinese herbal compound that has demonstrated the ability to improve bone quality and increase bone density. However, the efficacy of BSHXD on inflammatory bone loss and its underlying mechanisms remain unclear. This study aimed to investigate whether BSHXD inhibits inflammatory bone loss in mice and its potential molecular mechanisms. In the present study, the effect of BSHXD on lipopolysaccharide (LPS)-induced M1 polarization of RAW264.7 macrophage and on local inflammatory bone loss model of mouse skull was determined. The results showed that after treating RAW264.7 cells with LPS for 24 h, the expression levels of IL-1β (39.42 ± 3.076 ng/L, p < 0.05), IL-6 (49.24 ± 1.766 mg/L, p < 0.05) and TNF-α (286.3 ± 27.12 ng/L, p < 0.05) were significantly increased. The addition of BSHXD decreased the expression levels of IL-1β, IL-6, and TNF-α to 31.55 ± 1.296 ng/L, 37.94 ± 0.8869 mg/L, and 196.4 ± 25.25 ng/L, respectively (p < 0.05). The results of immunofluorescence staining, Western blotting (WB) and flow cytometry indicated that the proportion of M1 macrophages in RAW264.7 cells treated with BSHXD for 24 h was significantly lower than that in the LPS group (13.36% ± 0.9829% VS 24.80% ± 4.619%, p < 0.05). The evidence from in-vitro experiments showed that the immunomodulatory ability of BSHXD may be associated with the activation of AMP-dependent protein kinase (AMPK) pathway in LPS-treated macrophages. In addition, the results of micro-CT, H&E staining, immunohistochemical staining and immunofluorescence staining of mouse skull further demonstrated that BSHXD treatment significantly alleviated LPS-induced local bone loss and inflammatory damage in mouse skull model. All results indicated that BSHXD significantly inhibited inflammatory factors release and M1 polarization of macrophage through AMPK signaling pathway. Therefore, BSHXD may be a promising drug for the treatment of inflammatory bone loss.
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Affiliation(s)
- Shuangshuang Chen
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Department of Rheumatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Lihong Tao
- Department of Rheumatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Feng Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Zhifang Wang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Qi Zhuang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Yajun Li
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Yunshang Yang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Chengcheng Feng
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Haiwei Shi
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Jiandong Shi
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Like Zhu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
| | - Long Xiao
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Corresponding author. Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China.
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
- Corresponding author. Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Zhirong Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China
- Corresponding author. Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, 215600, China.
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Yang Y, Sheng D, Shi J, Xiao L, Wang Z, Yin Z, Zhuang Q, Chen S, Li Y, Gu Y, Zhu J, Geng D, Wang Z. Avicularin alleviates osteoporosis-induced implant loosening by attenuating macrophage M1 polarization via its inhibitory effect on the activation of NF-κB. Biomed Pharmacother 2023; 158:114113. [PMID: 36516692 DOI: 10.1016/j.biopha.2022.114113] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 09/28/2022] [Revised: 11/29/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
Currently, the failure rate for internal fixation in patients with osteoporosis can be reduced by antiosteoporosis therapy alone. However, the administration of anti-osteoporotic drugs is not a complete solution. Therefore, it is necessary to investigate other causes of surgical failure, such as inflammation. In recent years, the inflammation caused by macrophage M1 polarization has garnered wide attention. The purpose of this research is to explore the inhibitory effect of avicularin (AL) on macrophage M1 polarization, by which it ameliorates inflammation, thus alleviating implant instability. We established an osteoporosis mouse model of implant loosening. The mouse tissues were taken out for morphological analysis, staining analysis and bone metabolic index analysis. In in vitro experiments, bone marrow derived macrophages (BMDM) and RAW264.7 cells were polarized to M1 macrophages using lipopolysaccharide (LPS), and analyzed by immunofluorescence (IF) staining, Western blot (WB) and flow cytometry. WB was also used to analyze the nuclear factor kappa-B (NF-κB) pathway. In addition, the expression levels of inflammatory cytokines were detected in cell supernatant using ELISA kits. Through observation of this experiments, we found that AL can inhibit M1 polarization of macrophages. Moreover, it can significantly inhibit the release of inflammatory factors to improve multiple mouse femur parameters. Furthermore, AL inhibited the phosphorylation of IKBα and P65 in the NF-κB pathway. The above data indicate that AL ameliorates inflammatory responses by inhibiting macrophage M1 polarization via its inhibitory effect on the NF-κB pathway, thus alleviating the instability of implants in mice with osteoporosis.
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Affiliation(s)
- Yunshang Yang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Dong Sheng
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Jiandong Shi
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Long Xiao
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215600, China.
| | - Zhifang Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Zhengyu Yin
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Qi Zhuang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China
| | - Shuangshuang Chen
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China
| | - Yajun Li
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Yong Gu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Jie Zhu
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215600, China.
| | - Zhirong Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Medical School of Yangzhou University, Zhangjiagang, Jiangsu 215600, China; Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Yangzhou University Medical College, Zhangjiagang, Jiangsu 215600, China.
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9
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Li J, Wu Y, Xiang J, Wang H, Zhuang Q, Wei T, Cao Z, Gu Q, Liu Z, Peng R. Fluoroalkane modified cationic polymers for personalized mRNA cancer vaccines. Chem Eng J 2023; 456:140930. [PMID: 36531858 PMCID: PMC9743697 DOI: 10.1016/j.cej.2022.140930] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/12/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
Messenger RNA (mRNA) vaccines, while demonstrating great successes in the fight against COVID-19, have been extensively studied in other areas such as personalized cancer immunotherapy based on tumor neoantigens. In addition to the design of mRNA sequences and modifications, the delivery carriers are also critical in the development of mRNA vaccines. In this work, we synthesized fluoroalkane-grafted polyethylenimine (F-PEI) for mRNA delivery. Such F-PEI could promote intracellular delivery of mRNA and activate the Toll-like receptor 4 (TLR4)-mediated signaling pathway. The nanovaccine formed by self-assembly of F-PEI and the tumor antigen-encoding mRNA, without additional adjuvants, could induce the maturation of dendritic cells (DCs) and trigger efficient antigen presentation, thereby eliciting anti-tumor immune responses. Using the mRNA encoding the model antigen ovalbumin (mRNAOVA), our F-PEI-based mRNAOVA cancer vaccine could delay the growth of established B16-OVA melanoma. When combined with immune checkpoint blockade therapy, the F-PEI-based MC38 neoantigen mRNA cancer vaccine was able to suppress established MC38 colon cancer and prevent tumor reoccurrence. Our work presents a new tool for mRNA delivery, promising not only for personalized cancer vaccines but also for other mRNA-based immunotherapies.
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Affiliation(s)
- Junyan Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
| | - Yuanyuan Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
| | - Jian Xiang
- WuXi AppTec (Suzhou) Co., Ltd., 1336 Wuzhong Avenue, Wuzhong District, Suzhou 215104, China
| | - Hairong Wang
- Children's Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
| | - Ting Wei
- InnoBM Pharmaceuticals Co., Ltd., Suzhou, Jiangsu 215000, China
| | - Zhiqin Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
| | - Qingyang Gu
- WuXi AppTec (Suzhou) Co., Ltd., 1336 Wuzhong Avenue, Wuzhong District, Suzhou 215104, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Rd, Suzhou, Jiangsu 215123, China
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10
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Zhuang Q, Chen S, Zhang W, Gu M, Xiao L, Li Y, Yang Y, Feng C, Li H, Geng D, Wang Z. Avicularin Alleviates Osteoporosis in Ovariectomized Mice by Inhibiting Osteoclastogenesis through NF-κB Pathway Inhibition. J Agric Food Chem 2023; 71:411-420. [PMID: 36540936 PMCID: PMC9838558 DOI: 10.1021/acs.jafc.2c05954] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Osteoporosis (OP) is mainly manifested by bone loss and bone degeneration. OP is considered a risk factor for pathological fractures, as well as impacts the health of middle-aged and elderly individuals. Drug therapy remains the main treatment scheme for OP; however, its efficacy is limited and has been associated with serious side effects. Therefore, it is important to develop new, effective, and safe treatment methods for OP. Avicularin (AL) is a flavonoid and quercetin derivative from various plants. Our study showed that AL disrupts osteoclast activation and resorptive function via inhibition of the RANKL-induced osteoclast differentiation together with the resorption capacity of bone marrow-derived macrophages (BMMs). Hence, AL prevents the activation and resorptive activity of osteoclasts. The results of qPCR showed that genes related to osteoclasts exhibited downregulated expression after AL treatment. Furthermore, AL inhibited RANKL-induced phosphorylation as well as degradation of the inhibitor IκBα of the NF-κB pathway, together with P65 phosphorylation in BMMs. We used an OP mouse model that was established by ovariectomy (OVX). Relative to untreated OP mice, mice that received AL treatment showed a significant increase in bone mineral density; however, the expression of TRAP, NFATC1, mmp9, and CTX-1 was significantly reduced. These results indicate that AL disrupts osteoclastogenesis via inhibition of the NF-κB pathway, which in turn improves OVX-induced OP.
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Affiliation(s)
- Qi Zhuang
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Shuangshuang Chen
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Wei Zhang
- Department
of Orthopedics, The First Affiliated Hospital
of Soochow University, Suzhou 215006, China
| | - Minhui Gu
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Long Xiao
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, The First Affiliated Hospital
of Soochow University, Suzhou 215006, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Yajun Li
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Yunshang Yang
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Chengcheng Feng
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Hong Li
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Dechun Geng
- Department
of Orthopedics, The First Affiliated Hospital
of Soochow University, Suzhou 215006, China
| | - Zhirong Wang
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
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11
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Zhao W, Kinouchi T, Ang R, Zhuang Q. A framework for quantifying climate-informed heavy rainfall change: Implications for adaptation strategies. Sci Total Environ 2022; 835:155553. [PMID: 35489487 DOI: 10.1016/j.scitotenv.2022.155553] [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: 02/07/2022] [Revised: 04/11/2022] [Accepted: 04/23/2022] [Indexed: 06/14/2023]
Abstract
To understand the influence of climate change on heavy rainfalls and reduce the consequential multidimensional risks, we develop a climate-informed and adaptation strategies-related framework by using the information on heavy rainfalls and various socioeconomic factors. For this purpose, we firstly quantify the spatiotemporal characteristics of heavy rainfalls with various durations (1 h to multiple days) and return periods (2-year to 50-year) for the flood-prone country Cambodia, as a case study, during the historical period (1980-2005), mid-century (2040-2065), and late-century (2070-2095), using the latest three hourly climate model datasets under RCP 8.5 and 1 hourly ERA5 reanalysis datasets. A novel conditional artificial neural network (CANN) model is employed for temporal disaggregation to obtain the monthly maximum of 1 hourly rainfall in the future periods and subsequently, a zero-inflated generalized extreme value function (ZIGEV) is applied for extreme value analysis (EVA) to obtain rainfall intensity with different return periods. Secondly, the province-level flood risk change maps are developed based on a novel flood risk change index. The combination of CANN and ZIGEV performs better in EVA than traditional approaches by reducing the uncertainty from the stationarity assumption of temporal disaggregation and bias in the disaggregated rainfall. Rainfall intensity is projected to increase more in higher return periods and shorter durations towards the late-century, predominantly over Southern and Central Cambodia. Projected rainfall intensity-duration-frequency (IDF) curves in the capital city, Phnom Penh, reveal that the occurrence frequency of heavy rainfall in a given duration (e.g., 48 h) is likely to become ~10-fold in the mid-century. Results of province-level flood risk change maps indicate that Southeastern and Northwestern regions should be prioritized for employing adaption strategies. Our results will assist the policymakers in further mapping the flood susceptibility and vulnerability in different spatiotemporal scales across various communities and localities in the country and beyond.
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Affiliation(s)
- Wenpeng Zhao
- Department of Transdisciplinary Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan.
| | - Tsuyoshi Kinouchi
- Department of Transdisciplinary Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Raksmey Ang
- Department of Transdisciplinary Science and Engineering, Tokyo Institute of Technology, Tokyo, Japan
| | - Qi Zhuang
- Department of Hydraulic Engineering, Tongji University, Shanghai, China
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12
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Zhuang Q, Peng Y, Zhou J, Coyte P. Research on the child healthcare system in China from the perspective of equal health benefits: Beijing as the case study. Child Care Health Dev 2022; 48:513-520. [PMID: 34978083 PMCID: PMC9305476 DOI: 10.1111/cch.12953] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 12/07/2021] [Accepted: 12/20/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND With government's proposal of the Healthy China Strategy, universal health has become the focus of increasing attention in China. As a special group, children's health is the basis and start of the national health. The construction of children's healthcare system should be given the priority. This study applied the concept of health equal benefits and conducted a systematic and in-depth theoretical and empirical research on the children's healthcare system in Beijing, aiming at proposing relevant countermeasures and suggestions such as constructing the path of children's health care system in China. METHODS This study adopted the way of questionnaire on children's basic information, health status, health service demand, insured situation and system satisfaction and then analysed the children's health, healthcare, satisfaction influence factors and their healthcare needs based on a survey in Beijing China. Methods such as descriptive statistics, analysis of variance and logistic regression are adopted to analyse the correlation between factors affecting children's health. RESULTS The findings show that overall health of the children in Beijing was better. However, there are still problems such as insufficient resource coverage and incorrect cognition in some groups. Their mental health and support need to be put emphasis on. The popularization of medical insurance policies for urban and rural residents in Beijing needs to be further improved. The burden of seeing a doctor is slightly lower than before, and the contribution to protecting children's health is not strong enough. CONCLUSIONS Through the survey of children in Beijing, it can be seen that there are still some problems existing in the healthcare system of children in China from the perspective of equal benefit. This study draws policy attention to the issues of financing, service contents, targets, service level and the degree of social recognition.
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Affiliation(s)
- Qi Zhuang
- School of ManagementUniversity of Chinese Academy of Social SciencesBeijingChina
| | - Yunzhi Peng
- Central University of Finance and Economics, Administrative ManagementBeijingChina
| | - Jieyu Zhou
- Business SchoolUniversity of EdinburghEdinburghUK
| | - Peter Coyte
- School of Public HealthUniversity of TorontoTorontoCanada
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13
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Li Y, Zhuang Q, Tao L, Zheng K, Chen S, Yang Y, Feng C, Wang Z, Shi H, Shi J, Fang Y, Xiao L, Geng D, Wang Z. Urolithin B suppressed osteoclast activation and reduced bone loss of osteoporosis via inhibiting ERK/NF-κB pathway. Cell Prolif 2022; 55:e13291. [PMID: 35708050 PMCID: PMC9528769 DOI: 10.1111/cpr.13291] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 12/05/2022] Open
Abstract
Objectives The main target of current drugs for alleviating bone loss is osteoclasts. However, the long‐term application of such drugs will also cause side effects. Therefore, it is of great need to develop new and safer therapeutics for osteoporosis. In recent years, drug development based on gut microbiota has gradually attracted attention. This manuscript investigates the inhibitory effect of urolithin B (UB) on osteoclastogenesis and differentiation in vitro and in ovariectomized (OVX) mice. Materials and Methods CCK‐8 was used to analyse the cytotoxicity of UB; BMMs cells were differentiated into osteoclasts by RANKL, and respectively treated with 1, 5, and 25 μmol/L UB during this process. After one week of intervention, tartrate‐resistant acid phosphatase (TRAP) staining was used to analyse the number and average area of osteoclasts. F‐actin staining and immunofluorescence staining were conducted to evaluate the morphology and function of osteoclasts. Bone resorption function of osteoclasts was detected by Pit Formation Assay. The expression of osteoclast‐related protein genes in RAW264.7 cells were investigated via western blot and RT‐PCR assays. Western blot analysis of RANKL‐mediated activation of MAPK/NF‐κB pathway after 0, 5, 15, 30, 60 min of intervention. For in vivo experiments, OVX mice received intraperitoneal injection of 10, 50 mg/kg every two days, 8 weeks later, the femurs of mice were taken for morphological analysis, and the serum content of CTX‐1, a bone metabolism index, was analysed. Results UB could inhibit the osteoclast differentiation of rankl‐induced bone marrow macrophages (BMMs) and RAW264.7 cells in vitro, suppress the uptake activity of hydroxyapatite and expression of osteoclast‐related gene MMP9, CTSK, NFATc1 and c‐fos. Furthermore, UB repressed the rankl‐induced phosphorylation and degradation of IκB and the phosphorylation of P65 in the NF‐κB pathway of RAW264.7 cells, and also down‐regulated the phosphorylation level of ERK in the MAPK pathway. For in vivo studies, UB‐treated OVX mice showed more significant improved various parameters of distal femur compared with the control group, with fewer NFATc1, MMP9 and TRAP‐positive osteoclasts in bone tissues, and less serum content of CTX‐1. Conclusion Urolithin B attenuated bone loss in OVX mice by inhibiting the formation and activation of osteoclasts via down‐regulation of the ERK/NF‐κB signalling pathway.
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Affiliation(s)
- Yajun Li
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Qi Zhuang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Lihong Tao
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Rheumatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Kai Zheng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Shuangshuang Chen
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Rheumatology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Yunshang Yang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Chengcheng Feng
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Zhifang Wang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Haiwei Shi
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Jiandong Shi
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
| | - Yiling Fang
- Department of General Practice, The First People's Hospital of Zhangjiagang, Soochow University, Zhangjiagang, China
| | - Long Xiao
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhirong Wang
- Translational Medical Innovation Center, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China.,Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang, China
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14
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Lan X, Basu S, Schwietzke S, Bruhwiler LMP, Dlugokencky EJ, Michel SE, Sherwood OA, Tans PP, Thoning K, Etiope G, Zhuang Q, Liu L, Oh Y, Miller JB, Pétron G, Vaughn BH, Crippa M. Improved Constraints on Global Methane Emissions and Sinks Using δ 13C-CH 4. Global Biogeochem Cycles 2021; 35:e2021GB007000. [PMID: 34219915 PMCID: PMC8244052 DOI: 10.1029/2021gb007000] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/14/2021] [Accepted: 05/03/2021] [Indexed: 06/13/2023]
Abstract
We study the drivers behind the global atmospheric methane (CH4) increase observed after 2006. Candidate emission and sink scenarios are constructed based on proposed hypotheses in the literature. These scenarios are simulated in the TM5 tracer transport model for 1984-2016 to produce three-dimensional fields of CH4 and δ 13C-CH4, which are compared with observations to test the competing hypotheses in the literature in one common model framework. We find that the fossil fuel (FF) CH4 emission trend from the Emissions Database for Global Atmospheric Research 4.3.2 inventory does not agree with observed δ 13C-CH4. Increased FF CH4 emissions are unlikely to be the dominant driver for the post-2006 global CH4 increase despite the possibility for a small FF emission increase. We also find that a significant decrease in the abundance of hydroxyl radicals (OH) cannot explain the post-2006 global CH4 increase since it does not track the observed decrease in global mean δ 13C-CH4. Different CH4 sinks have different fractionation factors for δ 13C-CH4, thus we can investigate the uncertainty introduced by the reaction of CH4 with tropospheric chlorine (Cl), a CH4 sink whose abundance, spatial distribution, and temporal changes remain uncertain. Our results show that including or excluding tropospheric Cl as a 13 Tg/year CH4 sink in our model changes the magnitude of estimated fossil emissions by ∼20%. We also found that by using different wetland emissions based on a static versus a dynamic wetland area map, the partitioning between FF and microbial sources differs by 20 Tg/year, ∼12% of estimated fossil emissions.
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Affiliation(s)
- X. Lan
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado BoulderBoulderCOUSA
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - S. Basu
- Earth System Science Interdisciplinary CenterUniversity of MarylandCollege ParkMDUSA
- Global Modeling and Assimilation OfficeNational Aeronautics and Space Administration Goddard Space Flight CenterGreenbeltMDUSA
| | - S. Schwietzke
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado BoulderBoulderCOUSA
- Environmental Defense FundBerlinGermany
| | - L. M. P. Bruhwiler
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - E. J. Dlugokencky
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - S. E. Michel
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderCOUSA
| | - O. A. Sherwood
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderCOUSA
- Department of Earth and Environmental SciencesDalhousie UniversityHalifaxNova ScotiaCanada
| | - P. P. Tans
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - K. Thoning
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - G. Etiope
- Istituto Nazionale di Geofisica e VulcanologiaRomeItaly
- Faculty of Environmental Science and EngineeringBabes Bolyai UniversityCluj-NapocaRomania
| | - Q. Zhuang
- Department of Earth, Atmospheric, and Planetary SciencesPurdue UniversityWest LafayetteINUSA
| | - L. Liu
- Department of Earth, Atmospheric, and Planetary SciencesPurdue UniversityWest LafayetteINUSA
| | - Y. Oh
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
- Department of Earth, Atmospheric, and Planetary SciencesPurdue UniversityWest LafayetteINUSA
| | - J. B. Miller
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - G. Pétron
- Cooperative Institute for Research in Environmental SciencesUniversity of Colorado BoulderBoulderCOUSA
- Global Monitoring LaboratoryNational Oceanic and Atmospheric AdministrationBoulderCOUSA
| | - B. H. Vaughn
- Institute of Arctic and Alpine ResearchUniversity of Colorado BoulderBoulderCOUSA
| | - M. Crippa
- Joint Research CentreEuropean CommissionIspraItaly
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15
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Tan S, Zhou F, Zhang Z, Zhuang Q, Meng Q, Xi Q, Jiang Y, Wu G. Beta-1 blocker reduces inflammation and preserves intestinal barrier function after open abdominal surgery. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Xu J, Lv J, Zhuang Q, Yang Z, Cao Z, Xu L, Pei P, Wang C, Wu H, Dong Z, Chao Y, Wang C, Yang K, Peng R, Cheng Y, Liu Z. A general strategy towards personalized nanovaccines based on fluoropolymers for post-surgical cancer immunotherapy. Nat Nanotechnol 2020; 15:1043-1052. [PMID: 33139933 DOI: 10.1038/s41565-020-00781-4] [Citation(s) in RCA: 251] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 09/16/2020] [Indexed: 05/16/2023]
Abstract
Cancer metastases and recurrence after surgical resection remain an important cause of treatment failure. Here we demonstrate a general strategy to fabricate personalized nanovaccines based on a cationic fluoropolymer for post-surgical cancer immunotherapy. Nanoparticles formed by mixing the fluoropolymer with a model antigen ovalbumin, induce dendritic cell maturation via the Toll-like receptor 4 (TLR4)-mediated signalling pathway, and promote antigen transportation into the cytosol of dendritic cells, which leads to an effective antigen cross-presentation. Such a nanovaccine inhibits established ovalbumin-expressing B16-OVA melanoma. More importantly, a mix of the fluoropolymer with cell membranes from resected autologous primary tumours synergizes with checkpoint blockade therapy to inhibit post-surgical tumour recurrence and metastases in two subcutaneous tumour models and an orthotopic breast cancer tumour. Furthermore, in the orthotopic tumour model, we observed a strong immune memory against tumour rechallenge. Our work offers a simple and general strategy for the preparation of personalized cancer vaccines to prevent post-operative cancer recurrence and metastasis.
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Affiliation(s)
- Jun Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Jia Lv
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, China
| | - Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Zongjin Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Zhiqin Cao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Ligeng Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Pei Pei
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Chenya Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Hanfei Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Ziliang Dong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Yu Chao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Chao Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China
| | - Kai Yang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China.
| | - Yiyun Cheng
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, China.
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China.
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, China.
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Zhuang Q, Xu J, Deng D, Chao T, Li J, Zhang R, Peng R, Liu Z. Bacteria-derived membrane vesicles to advance targeted photothermal tumor ablation. Biomaterials 2020; 268:120550. [PMID: 33278684 DOI: 10.1016/j.biomaterials.2020.120550] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [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: 02/29/2020] [Revised: 11/12/2020] [Accepted: 11/18/2020] [Indexed: 02/06/2023]
Abstract
Nanoscale outer membrane vesicles (OMVs) secreted by Gram-negative bacteria are often applied in antibacterial treatment as adjuvants or antigens. Recently, OMVs have also been tested in a few anti-tumor treatment studies, in which OMVs are injected multiple times to achieve certain therapeutic effects, showing risks in repeated cytokine storms. Herein, we propose the use a single low dose of OMVs combined with photothermal therapy (PTT) for effective cancer treatment. It was found that single i. v. injection of OMVs could activate the immune system by boosting the secretion levels of anti-tumor related cytokines. In addition, single i. v. injection of OMVs could also lead to extravasation of red blood cells in the tumor mainly owing to the effect of lipopolysaccharide on the OMVs. Such effect was not observed in other normal organs. As the results, the tumors on OMV-treated mice showed obviously darkened color with greatly increased intratumoral optical absorbance in the near-infrared (NIR) region, further enabling effective photothermal ablation of those tumors by the NIR laser. Without causing obvious adverse responses, bacteria-derived OMVs may be a new type of therapeutic agent for cancer treatment with multiple functions.
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Affiliation(s)
- Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Jun Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Dashi Deng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Ting Chao
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Junyan Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Rui Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China.
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu, 215123, China.
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18
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Ng D, Kang H, Tan S, Shih V, Zhuang Q, Chiang J, Chang E, Chan J, Poon E, Somasundaram N, Yeoh K, Farid M, Tang T, Tao M, Lim S, Yang V. 326P Management of diffuse large B cell lymphomas in the COVID-19 era. Ann Oncol 2020. [PMCID: PMC7680648 DOI: 10.1016/j.annonc.2020.10.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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19
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Zhang X, Wang Y, Lin H, Lin Y, Zhuang Q, Wu J. Association of Markers of Systemic and Local Inflammation with Prognosis of Rectal Cancer Patients with Neoadjuvant Radiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Zhuang Z, Chhantyal K, Shi Y, Zhuang Q, Zhang F, Shi D, He B, Wang K. Post-arthroscopic osteonecrosis of the knee: A case report and literature review. Exp Ther Med 2020; 20:3009-3016. [PMID: 32855667 PMCID: PMC7444417 DOI: 10.3892/etm.2020.9056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 05/15/2020] [Indexed: 01/23/2023] Open
Abstract
Post-arthroscopic osteonecrosis is a rare complication of arthroscopic surgery. The present study reported on a case of knee osteonecrosis after arthroscopic surgery. The patient, an 81-year-old male, presented with left knee pain and limited range of motion without any history of trauma. MRI revealed medial meniscus tear. Medial partial meniscectomy was performed using arthroscopy. The pain was found to be relieved due to the operation. However, there was an aggravation of pain after two months post-operatively. X-ray revealed that the subchondral bone in the medial femoral condyle (MFC) had collapsed. MRI revealed a large area of bone marrow edema in the MFC with cartilage delamination and subchondral flattening. Considering the age of the patient and the large area of bone necrosis, total knee arthroplasty was performed. At the 1-year follow-up, the Knee Society Knee Score improved from 44 points pre-operatively to 90 points and the Knee Society Functional Score was elevated from 35 to 90 points. Patient-reported outcome measures were assessed in the form of the Oxford Knee Score, which was 16. Furthermore, previous case reports of post-arthroscopic osteonecrosis were reviewed and the clinical and radiographic features, as well as the treatment, were summarized. If the patient complains of persistent and worsening pain after arthroscopy, particularly in elderly osteoporotic patients with meniscal tears or chondral lesions, the possibility of post-arthroscopic knee osteonecrosis should be considered. Diagnosis and treatment at the early stages are likely to be beneficial for the outcome.
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Affiliation(s)
- Ze Zhuang
- Department of Joint Surgery and Orthopedic Trauma, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Kishor Chhantyal
- Department of Spine Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Yi Shi
- Department of Joint Surgery and Orthopedic Trauma, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Qi Zhuang
- Department of Laboratory Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Fei Zhang
- Department of Joint Surgery and Orthopedic Trauma, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Dehai Shi
- Department of Joint Surgery and Orthopedic Trauma, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Bo He
- Department of Joint Surgery and Orthopedic Trauma, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
| | - Kun Wang
- Department of Joint Surgery and Orthopedic Trauma, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510630, P.R. China
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21
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Cao Y, Yang X, Lai YM, Jia L, Diao XT, Zhuang Q, Lin DM. Genetic investigation of nodal melanocytic nevi in cases of giant congenital melanocytic nevus. Histol Histopathol 2020; 35:1151-1157. [PMID: 32729623 DOI: 10.14670/hh-18-243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nodal melanocytic nevi are common incidental findings in lymph nodes that have been removed during sentinel lymph node biopsy for melanoma. They can also occur in the local lymph nodes of the giant congenital nevus (GCN), but very little is known regarding nodal melanocytic nevi in the giant congenital nevus, especially at the genetic level. There are two theories that explain the possible pathogenesis of nodal melanocytic nevi, mechanical transport and arrested migration during embryogenesis. However, there have been few tests of these two theories at the molecular biology level until now. We used whole-exon sequencing to test these two theories at the gene level for the first time. In clonal evolution analysis of patient 1, whose tumor mutation burden (TMB) value was relatively stable, showed that the GCN and nodal nevus had the same initial origin and then diverged into two branches as a result of gene mutations. In contrast, analysis indicated that in the other patient, whose TMB value declined from 68.02/Mb in a GCN to 17.55/Mb in associated nodal nevi, these two samples were from different origins at the beginning, each with its own gene mutation. These results are consistent with the two respective theories at the molecular biological level. We provided the first tests of the two theories of pathogenesis of nodal melanocytic nevi at the gene level, and these findings may provide some clues for further study. In addition, not all nodal nevi should be treated as lymph node metastasis in clinical diagnosis, and we should make a comprehensive assessment and judgment of nodal melanocytic nevi based on morphology, immunological characteristics and fluorescence in situ hybridization (FISH) tests.
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Affiliation(s)
- Y Cao
- Department of Phatology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - X Yang
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - Y-M Lai
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - L Jia
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - X-T Diao
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China
| | - Q Zhuang
- Department of Pathology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - D-M Lin
- Department of Pathology, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, China.
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22
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Cao Y, Li ZW, Yang X, Lai YM, Zhuang Q, Jia L, Lin DM. [Genetic changes and biological potential of proliferative nodule in congenital pigmented nevus]. Zhonghua Bing Li Xue Za Zhi 2020; 49:458-463. [PMID: 32392930 DOI: 10.3760/cma.j.cn112151-20190905-00485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the genetic changes and biological potential of proliferative nodule in congenital melanocytic nevus. Methods: Whole-exome sequencing was carried out using the technique of next-generation sequencing (NGS) in order to detect the genomic alterations of two cases of proliferative nodules (PN) in congenital melanocytic nevi (CMN). Twelve cases of CMN and ten cases of malignant melanoma were used as benign and malignant controls, respectively. Mutated genes that possessed statistically significant difference between benign and malignant controls were listed, according to what benign and malignant statuses were classified and clustered. The heatmaps of clustering analyses were depicted using heatmap package. Fluorescence in situ hybridization (FISH) was also used to validate the above results. Results: Eighty-six common somatic gene mutations were detected in two samples of PN. Compared with CMN, PN had 52 more mutated genes. Furthermore, 22 of these 52 mutated genes were also detected in malignant melanoma samples. Two cases of PN fell between benign CMN and malignant melanoma in germline mutation clustering. Both cases of PN were positive in the FISH tests. Conclusions: The genetic changes of PN partially overlap with those of CMN and malignant melanoma. Therefore, although most of the PN manifest as a benign lesion clinically, it may have certain malignant potential at the genetic level, and warrant long-term monitoring and follow-up.
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Affiliation(s)
- Y Cao
- Department of Pathology, Plastic Surgery Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100144, China
| | - Z W Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Yang
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y M Lai
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Q Zhuang
- Department of Pathology, Plastic Surgery Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100144, China
| | - L Jia
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - D M Lin
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Wang R, Zhuang Q, Wang J, Yang M, Zhang X, Shen J. Integrative analysis reveals key mRNA and long non-coding RNA interaction in idiopathic pulmonary arterial hypertension. Arch Med Sci 2020; 19:1879-1888. [PMID: 38058710 PMCID: PMC10696996 DOI: 10.5114/aoms.2020.96074] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 07/16/2019] [Indexed: 12/08/2023] Open
Abstract
Introduction Idiopathic pulmonary arterial hypertension (IPAH) is a rare and sporadic form of pulmonary arterial hypertension (PAH), characterized by elevated pulmonary arterial resistance leading to right heart failure. However, molecular mechanisms of PAH development are still not completely understood. Material and methods In this study, we aimed to uncover key mRNAs and long non-coding RNA (lncRNAs), functional modules and pathways. Moreover, to detect the dysregulated pathway or biological function, we performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. PPI and co-expression networks were constructed to reveal the potential roles of PAH-related mRNAs and lncRNAs. Results A total of 3,134 genes, including 945 up-regulated and 2,189 down-regulated genes, were identified to be differentially expressed in IPAH by differential expression analysis. We identified T cell differentiation and the T cell receptor signaling pathway as up-regulated in IPAH by using GO and KEGG analysis. Based on the PPI module analysis, we identified that the pro-inflammatory genes, such as OAS1, CXCL10, STAT1 and TLR4, were the hub genes in the PPI modules. To link the lncRNAs to the PPI modules, we calculated the Spearman correlation coefficient for lncRNA-DE-mRNA pairs to identify the modules with high correlation with each lncRNA. Conclusions Notably, 6 of these lncRNAs were associated with modules characterized by the NOD-like receptor signaling pathway and chemokine signaling pathway, suggesting that these lncRNAs may promote the occurrence of IPAH via participating in the pro-inflammatory pathways. In conclusion, our systematic analysis not only improved our understanding of the molecular mechanism, but also provided potential lncRNA biomarkers for further research.
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Affiliation(s)
- Ruomeng Wang
- Department of Cardiology, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Zhuang
- Department of Cardiology, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Wang
- Department of Cardiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Menghui Yang
- Department of Cardiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xueming Zhang
- Department of Cardiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jieyan Shen
- Department of Cardiology, South Campus, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Cardiology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Zhou W, Gong J, Chen Y, Chen J, Zhuang Q, Cao J, Mei Z, Hu B. Long noncoding RNA LINC00899 suppresses breast cancer progression by inhibiting miR-425. Aging (Albany NY) 2019; 11:10144-10153. [PMID: 31739288 PMCID: PMC6914403 DOI: 10.18632/aging.102426] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 08/06/2019] [Accepted: 10/28/2019] [Indexed: 12/11/2022]
Abstract
Long non-coding RNAs (lncRNAs) have emerged as important regulators in cancer, including breast cancer. The precise expression pattern of long noncoding RNA 00899 (LINC00899) in breast cancer and its mechanisms of action have not been reported. Here, we found that LINC00899 is downregulated in breast cancer tissues and cell lines. Kaplan-Meier analysis showed that elevated LINC00899 expression is closely associated with better relapse-free survival (RFS) in breast cancer, including the basal, luminal A or luminal B breast cancer subtypes. Gene Ontology terms and Kyoto Encyclopedia of Genes and Genomes pathway analysis suggested that LINC00899 is closely related to several cancer associated processes, including tight junction- and metabolism-associated pathways. Functional assays indicated that LINC00899 overexpression suppresses proliferation, migration and invasion of breast cancer cells in vitro. Moreover, LINC00899 was found to competitively bind miR-425, thereby functioning as a tumor suppressor by enhancing DICER1. Overexpression of miR-425 attenuated the LINC00899-induced inhibition of breast cancer cell proliferation and invasion. These findings highlight the important role of the LINC00899-miR-425-DICER1 axis in breast cancer cell proliferation and invasion, and could potentially lead to new lncRNA-based diagnostics or therapeutics for breast cancer.
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Affiliation(s)
- Wenying Zhou
- Department of Laboratory Medicine, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jiao Gong
- Department of Laboratory Medicine, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Yaqiong Chen
- Department of Laboratory Medicine, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jiahao Chen
- Department of Laboratory Medicine, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Qi Zhuang
- Department of Laboratory Medicine, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jing Cao
- Department of Infectious Diseases, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Zhixiong Mei
- Obstetrical Department, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Bo Hu
- Department of Laboratory Medicine, Key Laboratory of Liver Disease of Guangdong Province, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
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Zhuang Q, Lin F, Lin X, Li J, Junxin W. High-biologically effective dose radiotherapy may improve local control of small cell lung cancer patients with brain metastases: A propensity-matching analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz437.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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26
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Lin X, Lin F, Zhuang Q, Zhang X, Huang Y, Tang L, Li J, Junxin W. Local immune status in cancer cell nests can be a predictor of survival for rectal cancer with neoadjuvant radiotherapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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27
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Zhuang Q, Lin F, Lin X, Zhang X, Huang Y, Tang L, Li J, Wu J. High-biologically effective dose radiotherapy improve the survival of small cell lung cancer patients with brain metastases: A propensity-matching analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz264.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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28
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Lin F, Zhuang Q, Lin X, Zhang X, Huang Y, Tang L, Junxin W, Li J. Trends in incidence and survival analyses of adult-onset medulloblastoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz243.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Wu H, Zhuang Q, Xu J, Xu L, Zhao Y, Wang C, Yang Z, Shen F, Liu Z, Peng R. Cell-Penetrating Peptide Enhanced Antigen Presentation for Cancer Immunotherapy. Bioconjug Chem 2019; 30:2115-2126. [DOI: 10.1021/acs.bioconjchem.9b00245] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Hanfei Wu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Jun Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Ligeng Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Yuhuan Zhao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Chenya Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Zongjin Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Fengyun Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, 199 Ren’ai Rd, Suzhou, Jiangsu 215123, P. R. China
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Zhuang Q, Si X, Li L, Zeng H, Ding Y. A self-adaptive multi-color fluorescent pH probe with the ability of whole cell imaging. Talanta 2019; 208:119780. [PMID: 31816740 DOI: 10.1016/j.talanta.2019.03.102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 01/25/2019] [Revised: 03/20/2019] [Accepted: 03/30/2019] [Indexed: 01/17/2023]
Abstract
Fluorescent pH probes are promising for both in vitro and in vivo pH detections in chemical and biochemical systems. Previously, the multi-color and whole cell pH sensing is a challenge for conventional fluorescent nanomaterials. In this work, we report an N, S co-doped carbon dots (N, S-CDs)-based fluorescent pH probe that can response to different incident light with tunable wavelength. The emission wavelength is tunable and correlated to the excitation wavelength, enabling self-adaptive multi-color sensing. The N, S-CDs was synthesized by a one-step hydrothermal method utilizing glucose, ammonium persulfate and ethylenediamine as precursors. The fluorescence of N, S-CDs shows a good linear relationship against pH values from 3.0 to 10.0 with a linear correlation coefficient of 0.996. The good biocompatibility and small size fulfill the demand of whole cell intracellular imaging. We have demonstrated that the N, S-CDs have successfully applied in HepG2 cells for the self-adaptive multi-color imaging.
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Affiliation(s)
- Qi Zhuang
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, PR China
| | - Xiaojing Si
- School of Public Health, Shanghai Aurora Vocation College, Shanghai 201908, PR China
| | - Li Li
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Hongyan Zeng
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, PR China
| | - Yaping Ding
- Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, PR China.
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Zhuang Q, Li L, Ding Y, Zeng H, Wu Y. Highly Luminescent Nitrogen-Doped Carbon Dots as “Turn-On” Fluorescence Probe for Selective Detection of Melamine. ChemistrySelect 2019. [DOI: 10.1002/slct.201803471] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Qi Zhuang
- Department of Chemistry; College of Sciences; Shanghai University; Shanghai 200444 PR China
| | - Li Li
- Department of Chemistry; College of Sciences; Shanghai University; Shanghai 200444 PR China
| | - Yaping Ding
- Department of Chemistry; College of Sciences; Shanghai University; Shanghai 200444 PR China
| | - Hongyan Zeng
- Department of Chemistry; College of Sciences; Shanghai University; Shanghai 200444 PR China
| | - Yueci Wu
- Department of Chemistry; College of Sciences; Shanghai University; Shanghai 200444 PR China
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Zhuang Q, Lin F, Lin X, Du K, Li J, Wu J. Propensity-Matched Analysis of Prognosis Following Whole Brain Radiation Therapy Alone Versus Whole Brain Radiation Therapy Combined with Local Boost in Small Cell Lung Cancer Patients with Brain Metastases. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Xiangquan K, Huang Y, Zheng B, Zhuang Q, Zhang X, Tang L, Li J, Wu J. Survival benefit of re-irradiation in esophageal cancer patients with locoregional recurrence: A propensity score matched analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Wang A, Ding Y, Li L, Duan D, Mei Q, Zhuang Q, Cui S, He X. A novel electrochemical enzyme biosensor for detection of 17β-estradiol by mediated electron-transfer system. Talanta 2018; 192:478-485. [PMID: 30348421 DOI: 10.1016/j.talanta.2018.09.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [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: 06/22/2018] [Revised: 09/03/2018] [Accepted: 09/05/2018] [Indexed: 12/28/2022]
Abstract
An extremely sensitive enzyme sensor for detection of 17β-estradiol based on electropolymerized L-lysine molecules on a glassy carbon electrode (GCE) modified with critic acid@graphene (CA-GR) and cross-linked with laccase enzyme has been developed in this work. As the laccase immobilization, glutaraldehyde was chosen as cross-linker through the groups reactions. The novel enzyme sensor could recognize and determinate 17β-estradiol effectively. The morphology of the enzyme modified electrode was characterized by transmission electron microscopy (TEM) and electron microscopy (SEM). The amino interaction between cross-linker and enzyme was characterized by Fourier transform infrared spectroscopy (FTIR). Under the optimal experimental conditions, good linear relationships were achieved in the range of 4 × 10-13 - 5.7 × 10-11 M and a limit of detection as low as 1.3 × 10-13 M. Moreover, the enzyme sensor exhibited good reproducibility, stability and high selectivity to 17β-estradiol. Excellent performance was showed in the human urine samples analysis, thus confirming great prospect for further application in clinic diagnosis and biological research.
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Affiliation(s)
- Anqing Wang
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China
| | - Yaping Ding
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China; Shanghai Key Laboratory of High Temperature Superconductors, Shanghai University, Shanghai 200444, PR China.
| | - Li Li
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China
| | - Dingding Duan
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China
| | - Qianwen Mei
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China
| | - Qi Zhuang
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China
| | - Shiqiang Cui
- Key Laboratory of Optoelectronic Devices and Systems of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Xinyu He
- Department of Chemistry, Shanghai University, Shanghai 200444, PR China
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Tan S, Wu G, Jiang Y, Xi Q, Meng Q, Zhuang Q, Han Y, Yu C, Yu Z, Li N. Probiotics supplemented enteral nutrition ameliorates postoperative ileus after peritoneal air exposure associated with inhibition of inducible nitric oxide synthesis. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu G, Tan S, Jiang Y, Zhang S, Xi Q, Meng Q, Zhuang Q, Han Y, Sui X. Sarcopenia predicts poor surgical and oncologic outcomes in patients after abdominal surgery for digestive tract cancer. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tan S, Wu G, Jiang Y, Xi Q, Meng Q, Zhuang Q, Han Y, Yu C, Yu Z, Li N. OMEGA-3 polyunsaturated fatty acids enriched enteral nutrition attenuates intestinal mucosal barrier damage after peritoneal air exposure via activation of cholecystokinin receptors. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wu G, Tan S, Jiang Y, Zhang S, Xi Q, Meng Q, Zhuang Q, Han Y, Sui X. Impact of three different malnutrition identified methods on predicting postoperative outcomes in patients following abdominal surgery for digestive tract cancer. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Cai Z, Li J, Zhuang Q, Zhang X, Yuan A, Shen L, Kang K, Qu B, Tang Y, Pu J, Gou D, Shen J. MiR-125a-5p ameliorates monocrotaline-induced pulmonary arterial hypertension by targeting the TGF-β1 and IL-6/STAT3 signaling pathways. Exp Mol Med 2018; 50:1-11. [PMID: 29700287 PMCID: PMC5938047 DOI: 10.1038/s12276-018-0068-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/15/2017] [Accepted: 11/01/2017] [Indexed: 12/29/2022] Open
Abstract
Pulmonary vascular remodeling due to excessive proliferation and resistance to apoptosis of pulmonary artery smooth muscle cells (PASMCs) is the hallmark feature of pulmonary arterial hypertension (PAH). Recent evidence suggests that miR-125a-5p plays a role in a rat model of monocrotaline-induced PAH (MCT-PAH); however, the underlying mechanism is currently unknown. Here, we examined the expression profile of miR-125a-5p in MCT-PAH rats and investigated the putative therapeutic effect of miR-125a-5p using the miR-125a-5p agomir. In addition, the miR-125a-5p agomir or antagomir was transfected into rat PASMCs, and proliferation and apoptosis were measured. Activity of the miR-125a-5p target STAT3 was measured using a luciferase reporter assay, and the expression of downstream molecules was measured using RT–qPCR and/or western blot analysis. Importantly, inducing miR-125a-5p expression in vivo slowed the progression of MCT-PAH by reducing systolic pulmonary arterial pressure, the Fulton index, and pulmonary vascular remodeling. Moreover, overexpressing miR-125a-5p inhibited the proliferation and promoted the apoptosis of PASMCs. In addition, stimulating PASMCs with TGF-β1 or IL-6 upregulated miR-125a-5p expression, whereas overexpressing miR-125a-5p reduced TGF-β1 and IL-6 production, as well as the expression of their downstream targets STAT3 and Smad2/3; in contrast, downregulating miR-125a-5p increased TGF-β1 and IL-6 production. Finally, a dual-luciferase reporter assay revealed that miR-125a-5p targets the 3′-UTR of STAT3, suppressing the downstream molecules PCNA, Bcl-2, and Survivin. Taken together, these findings suggest that miR-125a-5p ameliorates MCT-PAH in rats, has a negative feedback regulation with TGF-β1 and IL-6, and regulates the proliferation and apoptosis of PASMCs by directly targeting STAT3. A study in rats suggests that the small RNA molecule miR-125a-5p is a promising therapeutic target for treating pulmonary arterial hypertension (PAH). This type of high blood pressure is due to the narrowing of arteries that carry blood from the heart to the lungs and at present has no cure. Jieyan Shen at Shanghai Jiao Tong University, China, and colleagues found that PAH lowers the levels of miR-125a-5p in rat pulmonary arteries and that administration of miR-125a-5p as an early preventative treatment reduced disease progression. miR-125a-5p slowed the proliferation of pulmonary artery smooth muscle cells and triggered cell death by directly interacting with a gene expression regulator and reducing the production of certain pro-inflammatory signaling molecules. Targeting miR-125a-5p’s mechanism of action could represent a new treatment approach for this chronic, life-changing disease.
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Affiliation(s)
- Zongye Cai
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Li
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Zhuang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Cardiology, Renji Hospital (South), School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xueming Zhang
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ancai Yuan
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lan Shen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Kang Kang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Shenzhen University, Shenzhen, 518000, China
| | - Bo Qu
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yuanjia Tang
- Shanghai Institute of Rheumatology, Renji Hospital, School of Medicine, Shanghai, China; Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM) & Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai Jiao Tong University, Shanghai, China
| | - Jun Pu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Deming Gou
- Shenzhen Key Laboratory of Microbial Genetic Engineering, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China
| | - Jieyan Shen
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China. .,Department of Cardiology, Renji Hospital (South), School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Zeng H, Li L, Ding Y, Zhuang Q. Simple and selective determination of 6-thioguanine by using polyethylenimine (PEI) functionalized carbon dots. Talanta 2018; 178:879-885. [DOI: 10.1016/j.talanta.2017.09.087] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/19/2017] [Accepted: 09/30/2017] [Indexed: 02/07/2023]
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Tan S, Wu G, Xi Q, Zhuang Q, Meng Q, Jiang Y, Han Y, Yu C, Yu Z, Li N. OR34: High-Fat Enteral Nutrition Activates Cholecystokinin Receptors to Preserve Intestinal Mucosal Barrier Function after Peritoneal Air Exposure. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30753-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhai S, Zhuang Q, Wang Z. Study on the relationship between social support and mental health of the elderly in China: a case study of Xi'an city, Shaanxi province. J Ment Health 2017; 28:119-124. [PMID: 28682670 DOI: 10.1080/09638237.2017.1340626] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 10/19/2022]
Abstract
BACKGROUND The elderly's mental health is becoming more and more severe under the aging society in China (one third of the elderly had the symptom of depression according to the statistics). It is urgent to explore how the social support system of the elderly can influence their mental health and how to enhance their mental care from the perspective of social support. AIMS This article analyzes the relationship between social support and mental health of the elderly using quantitative and qualitative data. Methods results: This study relies on a survey did in 2016 in Xi'an among elderly over the age of 60, mainly using structural questionnaires and assisted with interviews for some specific people. The study finds that the status of mental health of the elderly in Xi'an maintains a medium-to-high level (the minimum value is 8, the maximum is 32, the average is 24.06 and the standard deviation is 4.278). CONCLUSIONS The children's support plays a decisive role in the elderly's mental health, which is a hygiene factor; friends, neighbors and social participation for the elderly also contribute to the mental health, which is a motivator factor. Besides, some special cases, such as those elderly who lost their only child, those migrating to other cities and those empty nesters, have become the vulnerable groups in mental health.
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Affiliation(s)
- Shaoguo Zhai
- a School of Public Administration, Northwest University , Xi'an , PR China and
| | - Qi Zhuang
- b School of Social Work, China Youth University for Political Studies , Beijing , PR China
| | - Zhaoxi Wang
- a School of Public Administration, Northwest University , Xi'an , PR China and
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Xu D, Ren Z, Chen X, Zhuang Q, Hui S, Sheng L, Li S. The further exploration of hidden blood loss in posterior lumbar fusion surgery. Orthop Traumatol Surg Res 2017; 103:527-530. [PMID: 28300704 DOI: 10.1016/j.otsr.2017.01.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 12/06/2016] [Accepted: 01/06/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE Hidden blood loss (HBL) plays an important role in lumbar fusion surgery. However, there was huge computation error when calculating hidden loss in previous studies because they regarded the volume of drainage as postoperative blood loss. We should not ignore the fact that the composition of drainage varies from person to person and also with time-lapse after operation. The purpose of this study was to demonstrate a more accurate HBL calculation formula by comparing it with previous formula and to address the importance of HBL in patients undergoing posterior lumbar fusion surgeries. METHODS For each patient, the HBL was calculated by previous formula and our recommendable formula. We compared the result of HBL calculated by two different methods. At the same time, we explored the HBL in patients undergoing posterior lumbar fusion surgeries with various levels. RESULTS In our study, the average total blood loss was 771ml. The mean intraoperative blood loss was 268ml, and the total volume of post-operative drainage is 276ml. The mean hidden loss of 90 patients calculated with previous method was 227ml and 29.4% of total loss. When taking change of drainage HCT into account, the mean hidden loss calculated with our recommendable method was 362.8ml and 47% of total loss. The results were significantly different (P<0.01). There was no significant difference in the percentage of the HBL between patients with single or multiple surgical levels. CONCLUSIONS There is often a substantial unmeasured blood loss in lumbar fusion surgeries. However, the component of drainage changed radically with time, we should take the true blood contained in drainage into considerations when calculating the HBL. LEVEL OF EVIDENCE Our research is a case-control study and the level of proof is III.
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Affiliation(s)
- D Xu
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
| | - Z Ren
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
| | - X Chen
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
| | - Q Zhuang
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
| | - S Hui
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
| | - L Sheng
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
| | - S Li
- Department of Orthorpaedic Surgery, Peking Union Medical College Hospital, Beijing, China.
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Xu J, Xu L, Wang C, Yang R, Zhuang Q, Han X, Dong Z, Zhu W, Peng R, Liu Z. Near-Infrared-Triggered Photodynamic Therapy with Multitasking Upconversion Nanoparticles in Combination with Checkpoint Blockade for Immunotherapy of Colorectal Cancer. ACS Nano 2017; 11:4463-4474. [PMID: 28362496 DOI: 10.1021/acsnano.7b00715] [Citation(s) in RCA: 472] [Impact Index Per Article: 67.4] [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: 05/21/2023]
Abstract
While immunotherapy has become a highly promising paradigm for cancer treatment in recent years, it has long been recognized that photodynamic therapy (PDT) has the ability to trigger antitumor immune responses. However, conventional PDT triggered by visible light has limited penetration depth, and its generated immune responses may not be robust enough to eliminate tumors. Herein, upconversion nanoparticles (UCNPs) are simultaneously loaded with chlorin e6 (Ce6), a photosensitizer, and imiquimod (R837), a Toll-like-receptor-7 agonist. The obtained multitasking UCNP-Ce6-R837 nanoparticles under near-infrared (NIR) irradiation with enhanced tissue penetration depth would enable effective photodynamic destruction of tumors to generate a pool of tumor-associated antigens, which in the presence of those R837-containing nanoparticles as the adjuvant are able to promote strong antitumor immune responses. More significantly, PDT with UCNP-Ce6-R837 in combination with the cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) checkpoint blockade not only shows excellent efficacy in eliminating tumors exposed to the NIR laser but also results in strong antitumor immunities to inhibit the growth of distant tumors left behind after PDT treatment. Furthermore, such a cancer immunotherapy strategy has a long-term immune memory function to protect treated mice from tumor cell rechallenge. This work presents an immune-stimulating UCNP-based PDT strategy in combination with CTLA-4 checkpoint blockade to effectively destroy primary tumors under light exposure, inhibit distant tumors that can hardly be reached by light, and prevent tumor reoccurrence via the immune memory effect.
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Affiliation(s)
- Jun Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Ligeng Xu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Chenya Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Rong Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Qi Zhuang
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Xiao Han
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Ziliang Dong
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Wenwen Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Rui Peng
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, and ‡School of Biology & Basic Medical Science, Medical College, Soochow University , Suzhou, Jiangsu 215123, China
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Zhai S, Zhuang Q, Wang P, Wang Z, Coyte PC. The Study of Living Conditions and Perceived Needs for Social Security among Clergy in China: A Case Study of Guanzhong Qinling Area. Soc Work Public Health 2017; 32:102-109. [PMID: 27586160 DOI: 10.1080/19371918.2016.1188749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/06/2023]
Abstract
This study used quantitative and qualitative data collected in the Guanzhong Qinling area of China to examine living conditions and perceived needs for social security among men and women of the clergy. The survey finds that most respondent clergy are Buddhists. When the clergy have economic difficulties, their main types of support include self-support (28.8%), help from other believers (25.6%), and assistance from other community residents (18.4%). When the clergy are old, they tend to live alone (25%), receive institutional care from religious organizations (19%), and receive support from other believers (18%). When the clergy are ill, they will often select self-treatment (primarily the use of traditional Chinese medicine [25%], and spiritual healing [25%], including meditation, prayers, and psychotherapy) and receive treatment at hospitals (20%). The study found that the clergy perceived their needs for social security as either great (19.7%) or modest (36.5%). Very few clergy (10%) indicate the absence of social security needs. Most clergy believe that the key social security priorities should be medical care (34%), elderly care (29%), and charitable assistance (21%).
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Affiliation(s)
- Shaoguo Zhai
- a School of Public Administration, Northwest University , Shaanxi , China
| | - Qi Zhuang
- b School of Social Work, China Youth University for Political Science , Beijing , China
| | - Pei Wang
- c School of Economics and Management, Xianyang Normal University , Shaanxi , China
| | - Zhaoxi Wang
- a School of Public Administration, Northwest University , Shaanxi , China
| | - Peter C Coyte
- d Institute of Health Policy, Management and Evaluation, University of Toronto , Toronto , Ontario, Canada
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Chen F, Zhuang Q, Wang R, Guo P. Damage point prediction of a force chain based on the digital image correlation method. Appl Opt 2017; 56:636-643. [PMID: 28157923 DOI: 10.1364/ao.56.000636] [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] [Indexed: 06/06/2023]
Abstract
The development and evolution of the force chain in a granular system is an important factor that affects the stability of granular systems. In this work, the displacement threshold (SC) and angle threshold (θd) are proposed, and a new method to predict the damage point in the force chain is introduced and verified. A two-dimensional steel ball particle system under concentrated loading is analyzed; during the deformation process, images are constantly recorded by a CCD camera. Based on the digital image correlation method, the displacement and movement direction of each particle in the steel ball particle system is analyzed, and a prediction analysis of the damage point in the force chains is performed.
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Tan S, Wu G, Yu C, Zhuang Q, Xi Q, Meng Q, Jiang Y, Han Y, Yu Z, Li N. OR38: High-Fat Enteral Nutrition Improves Intestinal Muscularis Energy Metabolism for Postoperative Ileus. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30277-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tan S, Yu C, Wu G, Zhuang Q, Xi Q, Meng Q, Jiang Y, Han Y, Yu W, Yu Z, Li N. MON-P242: Early Enteral Nutrition for Patients After Pancreaticoduodenectomy, A Meta-Analysis Of Randomized Controlled Trials. Clin Nutr 2016. [DOI: 10.1016/s0261-5614(16)30876-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Chen F, Zhuang Q, Zhang H. Mechanical analysis and force chain determination in granular materials using digital image correlation. Appl Opt 2016; 55:4776-4783. [PMID: 27409099 DOI: 10.1364/ao.55.004776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The mechanical behaviors of granular materials are governed by the grain properties and microstructure of the materials. We conducted experiments to study the force transmission in granular materials using plane strain tests. The large amount of nearly continuous displacement data provided by the advanced noncontact experimental technique of digital image correlation (DIC) has provided a means to quantify local displacements and strains at the particle level. The average strain of each particle could be calculated based on the DIC method, and the average stress could be obtained using Hooke's law. The relationship between the stress and particle force could be obtained based on basic Newtonian mechanics and the balance of linear momentum at the particle level. This methodology is introduced and validated. In the testing procedure, the system is tested in real 2D particle cases, and the contact forces and force chain are obtained and analyzed. The system has great potential for analyzing a real granular system and measuring the contact forces and force chain.
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Luo B, Lin Y, Jiang S, Huang L, Yao H, Zhuang Q, Zhao R, Liu H, He C, Lin Z. Endoplasmic reticulum stress eIF2α-ATF4 pathway-mediated cyclooxygenase-2 induction regulates cadmium-induced autophagy in kidney. Cell Death Dis 2016; 7:e2251. [PMID: 27253415 PMCID: PMC5143407 DOI: 10.1038/cddis.2016.78] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 03/04/2016] [Accepted: 03/07/2016] [Indexed: 12/16/2022]
Abstract
The heavy metal cadmium (Cd) is nephrotoxic. Recent studies show that autophagy plays an essential role in Cd-induced kidney injury. However, the mechanisms of Cd-induced kidney injury accompanied by autophagy are still obscure. In the present study, we first confirmed that Cd induced kidney damage and dysfunction, along with autophagy, both in vivo and in vitro. Then, we observed that cyclooxygenase-2 (COX-2) and the eIF2α-ATF4 pathway of endoplasmic reticulum (ER) stress were induced by Cd in both kidney tissues and cultured cells. Further studies showed that inhibition of COX-2 with celecoxib or RNA interference (RNAi) inhibited the Cd-induced autophagy in kidney cells. In addition, blocking ER stress with 4-phenylbutyrate or RNAi partially counteracted COX-2 overexpression and autophagy induced by Cd, which suggested that ER stress was required for Cd-induced kidney autophagy. Significantly, our results showed that Cd activated ATF4 and induced its translocation to the nucleus. Knockdown of ATF4 inhibited Cd-induced COX-2 overexpression. While COX-2 overexpression is involved in renal dysfunction, there is no prior report on the role of COX-2 in autophagy regulation. The results of the current study suggest a novel molecular mechanism that the ER stress eIF2α-ATF4 pathway-mediated COX-2 overexpression contributes to Cd-induced kidney autophagy and injury. The present study implies that COX-2 may be a potential target for therapy against Cd-induced nephrotoxicity.
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Affiliation(s)
- B Luo
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Y Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - S Jiang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - L Huang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - H Yao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Q Zhuang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - R Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - H Liu
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - C He
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Z Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
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