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Andaluz S, Zhao B, Sinha S, Lagniton PNP, Costa DA, Ding X, Brito M, Wang SM. Using Portuguese BRCA pathogenic variation as a model to study the impact of human admixture on human health. BMC Genomics 2024; 25:416. [PMID: 38671360 PMCID: PMC11055274 DOI: 10.1186/s12864-024-10311-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Admixture occurs between different ethnic human populations. The global colonization in recent centuries by Europeans led to the most significant admixture in human history. While admixture may enhance genetic diversity for better fitness, it may also impact on human health by transmitting genetic variants for disease susceptibility in the admixture population. The admixture by Portuguese global exploration initiated in the 15th century has reached over 20 million of Portuguese-heritage population worldwide. It provides a valuable model to study the impact of admixture on human health. BRCA1 and BRCA2 (BRCA) are two of the important tumor suppressor genes. The pathogenic variation (PV) in BRCA is well determined to cause high risk of hereditary breast and ovarian cancer. Tracing the distribution of Portuguese BRCA PV in Portuguese-heritage population will help to understand the impact of admixture on cancer susceptibility in modern humans. In this study, we analyzed the distribution of the Portuguese-originated BRCA variation in Brazilian population, which has high degree Portuguese-heritage. METHODS By comprehensive data mining, standardization and annotation, we generated a Portuguese-derived BRCA variation dataset and a Brazilian-derived BRCA variation dataset. We compared the two BRCA variation datasets to identify the BRCA variants shared between the two populations. RESULTS The Portuguese-derived BRCA variation dataset consists of 220 BRCA variants including 78 PVs from 11,482 Portuguese cancer patients, 93 (42.2%) in BRCA1 and 127 (57.7%) in BRCA2. Of the 556 Portuguese BRCA PV carriers carrying the 78 PVs, 331 (59.5%) carried the three Portuguese-BRCA founder PVs of BRCA1 c.2037delinsCC, BRCA1 c.3331_3334del and BRCA2 c.156_157insAlu. The Brazilian-derived BRCA variation dataset consists of 255 BRCA PVs from 7,711 cancer patients, 136 (53.3%) in BRCA1 and 119 (46.6%) in BRCA2. We developed an open database named dbBRCA-Portuguese ( https://genemutation.fhs.um.edu.mo/dbbrca-portuguese/ ) and an open database named dbBRCA-Brazilian ( https://genemutation.fhs.um.edu.mo/dbbrca-brazilian ) to host the BRCA variation data from Portuguese and Brazilian populations. We compared the BRCA PV datasets between Portuguese and Brazilian populations, and identified 29 Portuguese-specific BRCA PVs shared between Portuguese and Brazilian populations, 14 in BRCA1 including the Portuguese founder BRCA1 c.3331_3334del and BRCA1 c.2037delinsCC, and 15 in BRCA2 including the Portuguese founder BRCA2 c.156_157insAlu. Searching the 78 Portuguese BRCA PVs in over 5,000 ancient human genomes identified evolution origin for only 8 PVs in Europeans dated between 37,470 and 3,818 years before present, confirming the Portuguese-specificity of Portuguese BRCA PVs; comparing the 78 Portuguese BRCA PVs Portuguese, 255 Brazilian BRCA PVs, and 134 African BRCA PVs showed little overlapping, ruling out the possibility that the BRCA PVs shared between Portuguese and Brazilian may also be contributed by African. CONCLUSION Our study provides evidence that the admixture in recent human history contributed to cancer susceptibility in modern humans.
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Affiliation(s)
- Stephanie Andaluz
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Bojin Zhao
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Siddharth Sinha
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Philip Naderev Panuringan Lagniton
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Diogo Alpuim Costa
- Medical Oncology Department, Hospital de Cascais, Cascais; Haematology and Oncology Department, CUF Oncologia, Lisbon; NOVA Medical School, Faculdade de Ciências Médicas, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Xiaofan Ding
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China
| | - Miguel Brito
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Lisbon, Portugal.
| | - San Ming Wang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macao SRA, China.
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Yi Y, Qin G, Yang H, Jia H, Zeng Q, Zheng D, Ye S, Zhang Z, Liu TM, Luo KQ, Deng CX, Xu RH. Mesenchymal Stromal Cells Increase the Natural Killer Resistance of Circulating Tumor Cells via Intercellular Signaling of cGAS-STING-IFNβ-HLA. Adv Sci (Weinh) 2024:e2400888. [PMID: 38638003 DOI: 10.1002/advs.202400888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/17/2024] [Indexed: 04/20/2024]
Abstract
Circulating tumor cells (CTCs) shed from primary tumors must overcome the cytotoxicity of immune cells, particularly natural killer (NK) cells, to cause metastasis. The tumor microenvironment (TME) protects tumor cells from the cytotoxicity of immune cells, which is partially executed by cancer-associated mesenchymal stromal cells (MSCs). However, the mechanisms by which MSCs influence the NK resistance of CTCs remain poorly understood. This study demonstrates that MSCs enhance the NK resistance of cancer cells in a gap junction-dependent manner, thereby promoting the survival and metastatic seeding of CTCs in immunocompromised mice. Tumor cells crosstalk with MSCs through an intercellular cGAS-cGAMP-STING signaling loop, leading to increased production of interferon-β (IFNβ) by MSCs. IFNβ reversely enhances the type I IFN (IFN-I) signaling in tumor cells and hence the expression of human leukocyte antigen class I (HLA-I) on the cell surface, protecting the tumor cells from NK cytotoxicity. Disruption of this loop reverses NK sensitivity in tumor cells and decreases tumor metastasis. Moreover, there are positive correlations between IFN-I signaling, HLA-I expression, and NK tolerance in human tumor samples. Thus, the NK-resistant signaling loop between tumor cells and MSCs may serve as a novel therapeutic target.
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Affiliation(s)
- Ye Yi
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Guihui Qin
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Hongmei Yang
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Hao Jia
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Qibing Zeng
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Dejin Zheng
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Sen Ye
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Zhiming Zhang
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
| | - Tzu-Ming Liu
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macao SAR, 999078, China
| | - Kathy Qian Luo
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macao SAR, 999078, China
| | - Chu-Xia Deng
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macao SAR, 999078, China
| | - Ren-He Xu
- Center of Reproduction, Development and Aging, Cancer Center, and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR, 999078, China
- Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macao SAR, 999078, China
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Liao X, Liu M, He M, Yuan C, Zhang Q, Wan Q, Qu Z, Kong L, Li L. Damage-Free Silica Coating for Colloidal Nanocrystals Through a Proactively Water-Generating Amidation Reaction at High Temperature. Small 2024:e2309902. [PMID: 38402427 DOI: 10.1002/smll.202309902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/29/2024] [Indexed: 02/26/2024]
Abstract
Silica is a promising shell coating material for colloidal nanoparticles due to its excellent chemical inertness and optical transparency. To encapsulate high-quality colloidal nanocrystals with silica shells, the silane coupling hydrolysis is currently the most effective approach. However, this reaction requires water, which often adversely affects the intrinsic physicochemical properties of nanocrystals. Achieving a damage-free silica encapsulation process to nanocrystals by hydrolysis is a huge challenge. Here, a novel strategy is developed to coat colloidal nanocrystals with a denser silica shell via a proactively water-generating reaction at high temperature. In this work, water molecules are continuously and proactively released into the reaction system through the amidation reaction, followed by in situ hydrolysis of silane, completely avoiding the impacts of water on nanocrystals during the silica coating process. In this work, water sensitive perovskite nanocrystals (CsPbBr3 ) are selected as the typical colloidal nanocrystals for silica coating. Notably, this high-temperature in situ encapsulation technology greatly improves the optical properties of nanocrystals, and the silica shells exhibit a denser structure, providing nanocrystals with better protection. This method overcomes the challenge of the influence of water on nanocrystals during the hydrolysis process, and provides an important reference for the non-destructive encapsulation of colloidal nanocrystals.
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Affiliation(s)
- Xinrong Liao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Mingming Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Mengda He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Changwei Yuan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Qinggang Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Qun Wan
- Macao Institute of Materials Science and Engineering (MIMSE), Life Science-Nanomaterials Fusion Technology Innovation Center, Macau University of Science and Technology, Taipa, Macau, 999078, P. R. China
| | - Zan Qu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Long Kong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Liang Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
- Macao Institute of Materials Science and Engineering (MIMSE), Life Science-Nanomaterials Fusion Technology Innovation Center, Macau University of Science and Technology, Taipa, Macau, 999078, P. R. China
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Ye Y, Tong HYK, Chong WH, Li Z, Tam PKH, Baptista-Hon DT, Monteiro O. A systematic review and meta-analysis of the effects of long-term antibiotic use on cognitive outcomes. Sci Rep 2024; 14:4026. [PMID: 38369574 PMCID: PMC10874946 DOI: 10.1038/s41598-024-54553-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/14/2024] [Indexed: 02/20/2024] Open
Abstract
Antibiotics are indispensable to infection management. However, use of antibiotics can cause gut microbiota dysbiosis, which has been linked to cognitive impairment by disrupting communication between the gut microbiota and the brain. We conducted a systematic review and meta-analysis on the effects of long-term antibiotic use on cognitive outcomes. We have searched PubMed, Web of Science, Embase, Cochrane Library and Scopus for English publications before March 2023 following the PRISMA guidelines. Screening, data extraction, and quality assessment were performed in duplicate. 960 articles were screened and 16 studies which evaluated the effect of any antibiotic compared to no antibiotics or placebo were included. Case-reports, in vitro and animal studies were excluded. We found that antibiotic use was associated with worse cognitive outcomes with a pooled effect estimate of - 0.11 (95% CI - 0.15, - 0.07, Z = 5.45; P < 0.00001). Subgroup analyses performed on adult vs pediatric patients showed a similar association of antibiotic on cognition in both subgroups. Antibiotic treatment was not associated with worse cognition on subjects with existing cognitive impairment. On the other hand, antibiotic treatment on subjects with no prior cognitive impairment was associated with worse cognitive performance later in life. This calls for future well-designed and well-powered studies to investigate the impact of antibiotics on cognitive performance.
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Affiliation(s)
- Yongqin Ye
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | | | - Wai Hong Chong
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | - Zhiqian Li
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | - Paul Kwong Hang Tam
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | - Daniel T Baptista-Hon
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
- Division of Systems Medicine, School of Medicine, University of Dundee, Dundee, UK
| | - Olivia Monteiro
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China.
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Wu J, Shen W, Fan Q, Zhang J, Zeng F. shRNA Targeting Lentiviral Vector Minus-Strand Product Improves the Viral Titer During Viral Packaging. Mol Biotechnol 2024:10.1007/s12033-023-01038-w. [PMID: 38300454 DOI: 10.1007/s12033-023-01038-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/21/2023] [Indexed: 02/02/2024]
Abstract
Lentiviral vector (LVV) has been used as one of the common carriers for gene therapy in clinical trials. LVV-mediated clinical trials have being reported in successfully treating hundreds of β-thalassemia cases. These LVVs bear an inversely placed β-hemoglobin (HBB) gene expression cassette for preserving introns during the viral RNA packaging. Consequently, these LVVs often produce a small amount of negatively orientated transcript driven by its internal gene promoter and would lower the viral titer by the minus-strand complemented with the viral backbone. To overcome this problem, we designed shRNAs specifically target the minus-strand RNA driven by the LVV internal promoter that resulted in a notable increase in the viral titer. This report demonstrates a simple and positive mean for increasing the effectiveness for gene therapy with the LVV system.
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Affiliation(s)
- Jiahui Wu
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200040, China
- NHC Key Laboratory of Medical Embryogenesis and Developmental Molecular Biology & Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, 200040, China
| | - Wenchen Shen
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200040, China
- NHC Key Laboratory of Medical Embryogenesis and Developmental Molecular Biology & Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, 200040, China
| | - Qianhai Fan
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200040, China
- NHC Key Laboratory of Medical Embryogenesis and Developmental Molecular Biology & Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, 200040, China
| | - Jingzhi Zhang
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200040, China.
- NHC Key Laboratory of Medical Embryogenesis and Developmental Molecular Biology & Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, 200040, China.
| | - Fanyi Zeng
- Shanghai Institute of Medical Genetics, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200040, China.
- Department of Histo-Embryology, Genetics and Developmental Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
- NHC Key Laboratory of Medical Embryogenesis and Developmental Molecular Biology & Shanghai Key Laboratory of Embryo and Reproduction Engineering, Shanghai, 200040, China.
- School of Pharmacy, Macau University of Science and Technology, Macau, China.
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Lei H, Li J, Zhao B, Kou SH, Xiao F, Chen T, Wang SM. Evolutionary origin of germline pathogenic variants in human DNA mismatch repair genes. Hum Genomics 2024; 18:5. [PMID: 38287404 PMCID: PMC10823654 DOI: 10.1186/s40246-024-00573-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 01/17/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Mismatch repair (MMR) system is evolutionarily conserved for genome stability maintenance. Germline pathogenic variants (PVs) in MMR genes that lead to MMR functional deficiency are associated with high cancer risk. Knowing the evolutionary origin of germline PVs in human MMR genes will facilitate understanding the biological base of MMR deficiency in cancer. However, systematic knowledge is lacking to address the issue. In this study, we performed a comprehensive analysis to know the evolutionary origin of human MMR PVs. METHODS We retrieved MMR gene variants from the ClinVar database. The genomes of 100 vertebrates were collected from the UCSC genome browser and ancient human sequencing data were obtained through comprehensive data mining. Cross-species conservation analysis was performed based on the phylogenetic relationship among 100 vertebrates. Rescaled ancient sequencing data were used to perform variant calling for archeological analysis. RESULTS Using the phylogenetic approach, we traced the 3369 MMR PVs identified in modern humans in 99 non-human vertebrate genomes but found no evidence for cross-species conservation as the source for human MMR PVs. Using the archeological approach, we searched the human MMR PVs in over 5000 ancient human genomes dated from 45,045 to 100 years before present and identified a group of MMR PVs shared between modern and ancient humans mostly within 10,000 years with similar quantitative patterns. CONCLUSION Our study reveals that MMR PVs in modern humans were arisen within the recent human evolutionary history.
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Affiliation(s)
- Huijun Lei
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310018, Zhejiang, China
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou, 310022, Zhejiang, China
| | - Jiaheng Li
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
| | - Bojin Zhao
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
| | - Si Hoi Kou
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
| | - Fengxia Xiao
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China
| | - Tianhui Chen
- Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310018, Zhejiang, China.
- Department of Cancer Prevention, Zhejiang Cancer Hospital, Hangzhou, 310022, Zhejiang, China.
| | - San Ming Wang
- Ministry of Education Frontiers Science Center for Precision Oncology, Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China.
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Zhang Y, Li L, Wang F, Wang H, Jiang Z, Lin Z, Bai Z, Jiang Y, Zhang Y, Chen B, Tang Y. Achieving High Initial Coulombic Efficiency and Capacity in a Surface Chemical Grafting Layer of Plateau-type Sodium Titanate. ChemSusChem 2024:e202301598. [PMID: 38264796 DOI: 10.1002/cssc.202301598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/14/2024] [Accepted: 01/22/2024] [Indexed: 01/25/2024]
Abstract
The plateau-type sodium titanate with suitable sodiation potential is a promising anode candidate for high safe and high energy density of sodium-ion batteries (SIBs). However, the poor initial Coulombic efficiency (ICE) and cyclic instability of sodium titanate are attributed to the unstable interfacial structure along with the decomposition of electrolytes, resulting in the continuous formation of solid electrolyte interface (SEI) film. To address this issue, a chemical grafting method is developed to fabricate a highly stable interface layer of inert Al2 O3 on the sodium titanate anode, rendering the high ICE and excellent cycling stability. Based on theoretical calculations, NaPF6 are more likely adsorption on the Al2 O3 surface and produce sodium fluoride. The formation of a thin and dense SEI film with rich sodium fluoride achieves the low interfacial resistances and charge-transfer resistances. Benefitting from our design, the obtained sodium titanate exhibits a high ICE from 67.7 % to 79.4 % and an enhanced reversible capacity from 151 mAh g-1 to 181 mAh g-1 at 20 mA g-1 , along with an increase in capacity retention from 56.5 % to 80.6 % after 500 cycles. This work heralds a promising paradigm for rational regulation of interfacial stability to achieve high-performance anodes for SIBs.
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Affiliation(s)
- Yanlei Zhang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Linwei Li
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Feng Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
- Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078, China
| | - Huicai Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Zhenming Jiang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Zhimin Lin
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Zhengshuai Bai
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Yinzhu Jiang
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Yanyan Zhang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
| | - Binmeng Chen
- Institute of Applied Physics and Materials Engineering, University of Macau, Macau, 999078, China
| | - Yuxin Tang
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, China
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Wang S, Hu P, Fan J, Zou J, Hong W, Huang X, Pan D, Chen H, Zhu YZ, Ye L. CD80-Fc fusion protein as a potential cancer immunotherapy strategy. Antib Ther 2024; 7:28-36. [PMID: 38235375 PMCID: PMC10791041 DOI: 10.1093/abt/tbad029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/31/2023] [Accepted: 11/16/2023] [Indexed: 01/19/2024] Open
Abstract
The activation of T lymphocytes is a crucial component of the immune response, and the presence of CD80, a membrane antigen, is necessary for T-cell activation. CD80 is usually expressed on antigen-presenting cells (APCs), which can interact with cluster of differentiation 28 (CD28) or programmed cell death ligand 1 (PD-L1) to promote T-cell proliferation, differentiation and function by activating costimulatory signal or blocking inhibitory signal. Simultaneously, CD80 on the APCs also interacts with cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) on the surface of T cells to suppress the response of specific effector T cells, particularly in the context of persistent antigenic stimulation. Due to the pivotal role of CD80 in the immune response, the CD80-Fc fusion protein has emerged as a promising approach for cancer immunotherapy. This review primarily focused on the crucial role of CD80 in the cancer immunotherapy. We also reviewed the current advancements in the research of CD80-Fc fusion proteins. Finally, we deliberated on the challenges encountered by CD80-Fc fusion proteins and proposed the potential strategies that could yield the benefits for patients.
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Affiliation(s)
- Songna Wang
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 999078, China
- Minhang Hospital & Department of Biological Medicines at School of Pharmacy, Fudan University, Shanghai 201100, China
| | - Pinliang Hu
- Research & Development Department, Beijing Beyond Biotechnology Co., Ltd, Room 308, C Building, NO. 18 Xihuannanlu Street, BDA, Beijing, 100176, China
| | - Jiajun Fan
- Minhang Hospital & Department of Biological Medicines at School of Pharmacy, Fudan University, Shanghai 201100, China
| | - Jing Zou
- Research & Development Department, Beijing Beyond Biotechnology Co., Ltd, Room 308, C Building, NO. 18 Xihuannanlu Street, BDA, Beijing, 100176, China
| | - Weidong Hong
- Research & Development Department, Beijing Beyond Biotechnology Co., Ltd, Room 308, C Building, NO. 18 Xihuannanlu Street, BDA, Beijing, 100176, China
| | - Xuan Huang
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 999078, China
- Minhang Hospital & Department of Biological Medicines at School of Pharmacy, Fudan University, Shanghai 201100, China
| | - Danjie Pan
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 999078, China
- Minhang Hospital & Department of Biological Medicines at School of Pharmacy, Fudan University, Shanghai 201100, China
| | - Huaning Chen
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 999078, China
- Minhang Hospital & Department of Biological Medicines at School of Pharmacy, Fudan University, Shanghai 201100, China
| | - Yi Zhun Zhu
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 999078, China
| | - Li Ye
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, 999078, China
- Minhang Hospital & Department of Biological Medicines at School of Pharmacy, Fudan University, Shanghai 201100, China
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9
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Nie XW, Nasim AA, Yao XJ, Fan XX. ZYZ384 suppresses the growth of EGFR-mutant non-small cell lung cancer by activating JNK/MAPK signaling pathway. Chem Biol Drug Des 2024; 103:e14408. [PMID: 38009559 DOI: 10.1111/cbdd.14408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/23/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
The emergency of tyrosine kinase inhibitors has remarkably enhanced the clinical outcomes of cancer therapy, especially the use of EGFR inhibitors for non-small cell lung cancer (NSCLC). However, acquired resistance is inevitable after 8-12 months treatment. New agents or treatments are urgently required to resolve this problem. In this study, we identified that compound ZYZ384 can selectively inhibit the growth of gefitinib-resistant (G-R) lung cancer cells, without affecting that of normal lung epithelial cells. ZYZ384 induced G2 arrest in G-R NSCLC cells, decreasing the expression of Cyclin B1 and increasing the expression of P21. Meanwhile, ZYZ384 also induced apoptosis in NSCLC cells and correspondingly increased the expression of cleaved Caspase 3, 8, and 9 proteins. The expression of p-JNK, p-P38, and p-ERK were also increased in H1975 NSCLC cells treated with ZYZ384. Finally, we observed that the JNK inhibitor effectively reversed the pro-apoptotic effect of ZYZ384. In conclusion, ZYZ384 is a potential therapeutic agent to inhibit the growth of NSCLCs with EGFR mutations through activating JNK, which will help the development of related anticancer drugs.
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Affiliation(s)
- Xiao-Wen Nie
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Ali Adnan Nasim
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Xiao-Jun Yao
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Xing-Xing Fan
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
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10
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Xiao Y, Xu RH, Dai Y. Nanoghosts: Harnessing Mesenchymal Stem Cell Membrane for Construction of Drug Delivery Platforms Via Optimized Biomimetics. Small 2024; 20:e2304824. [PMID: 37653618 DOI: 10.1002/smll.202304824] [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: 06/07/2023] [Revised: 08/10/2023] [Indexed: 09/02/2023]
Abstract
Mesenchymal stem cells (MSCs) are becoming hotspots for application in disease therapies recently, combining with biomaterials and drug delivery system. A major advantage of MSCs applied in drug delivery system is that these cells enable specific targeting and releasing of cargos to the disease sites. However, the potential tumor tropic effects of MSCs raised concerns on biosafety. To solve this problem, there are emerging methods of isolating cell membranes and developing nanoformulations to perform drug delivery, which avoids concerns on biosafety without disturbing the membrane functions of specific polarizing and locating. These cargoes are so called "nanoghosts." This review article summarizes the current applications of nanoghosts, the promising potential of MSCs to be applied in membrane isolation and nanoghost construction, and possible approaches to develop better drug delivery system harnessing from MSC ghost cell membranes.
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Affiliation(s)
- Yuan Xiao
- Faculty of Health Sciences and MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau SAR, 999078, China
| | - Ren-He Xu
- Faculty of Health Sciences and MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau SAR, 999078, China
| | - Yunlu Dai
- Faculty of Health Sciences and MoE Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau SAR, 999078, China
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11
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Huang J, Duan F, Xie C, Xu J, Zhang Y, Wang Y, Tang YP, Leung ELH. Microbes mediated immunogenic cell death in cancer immunotherapy. Immunol Rev 2024; 321:128-142. [PMID: 37553793 DOI: 10.1111/imr.13261] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 08/10/2023]
Abstract
Immunogenic cell death (ICD) is one of the 12 distinct cell death forms, which can trigger immune system to fight against cancer cells. During ICD, a number of cellular changes occur that can stimulate an immune response, including the release of molecules called damage-associated molecular patterns (DAMPs), signaling to immune cells to recognize and attack cancer cells. By virtue of their pivotal role in immune surveillance, ICD-based drug development has been a new approach to explore novel therapeutic combinations and personalized strategies in cancer therapy. Several small molecules and microbes can induce ICD-relevant signals and cause cancer cell death. In this review, we highlighted the role of microbe-mediate ICD in cancer immunotherapy and described the mechanisms through which microbes might serve as ICD inducers in cancer treatment. We also discussed current attempts to combine microbes with chemotherapy regimens or immune checkpoint inhibitors (ICIs) in the treatment of cancer patients. We surmise that manipulation of microbes may guide personalized therapeutic interventions to facilitate anticancer immune response.
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Affiliation(s)
- Jumin Huang
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau (SAR), China
- MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau (SAR), China
| | - Fugang Duan
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
- NHC Key Laboratory of Medical Immunology, Peking University Health Science Center, Beijing, China
- Key Laboratory of Molecular Immunology, Chinese Academy of Medical Sciences, Beijing, China
| | - Chun Xie
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau (SAR), China
- MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau (SAR), China
| | - Jiahui Xu
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau (SAR), China
- MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau (SAR), China
| | - Yizhong Zhang
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Dr. Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Yuwei Wang
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi Province, China
| | - Yu-Ping Tang
- Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi Province, China
| | - Elaine Lai-Han Leung
- Cancer Center, Faculty of Health Sciences, University of Macau, Macau (SAR), China
- MOE Frontiers Science Center for Precision Oncology, University of Macau, Macau (SAR), China
- State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macau, China
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12
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Wang X, Song C, Ye Y, Gu Y, Li X, Chen P, Leng D, Xiao J, Wu H, Xie S, Liu W, Zhao Q, Chen D, Chen X, Wu Q, Chen G, Zhang W. BRD9-mediated control of the TGF-β/Activin/Nodal pathway regulates self-renewal and differentiation of human embryonic stem cells and progression of cancer cells. Nucleic Acids Res 2023; 51:11634-11651. [PMID: 37870468 PMCID: PMC10681724 DOI: 10.1093/nar/gkad907] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 09/29/2023] [Accepted: 10/06/2023] [Indexed: 10/24/2023] Open
Abstract
Bromodomain-containing protein 9 (BRD9) is a specific subunit of the non-canonical SWI/SNF (ncBAF) chromatin-remodeling complex, whose function in human embryonic stem cells (hESCs) remains unclear. Here, we demonstrate that impaired BRD9 function reduces the self-renewal capacity of hESCs and alters their differentiation potential. Specifically, BRD9 depletion inhibits meso-endoderm differentiation while promoting neural ectoderm differentiation. Notably, supplementation of NODAL, TGF-β, Activin A or WNT3A rescues the differentiation defects caused by BRD9 loss. Mechanistically, BRD9 forms a complex with BRD4, SMAD2/3, β-CATENIN and P300, which regulates the expression of pluripotency genes and the activity of TGF-β/Nodal/Activin and Wnt signaling pathways. This is achieved by regulating the deposition of H3K27ac on associated genes, thus maintaining and directing hESC differentiation. BRD9-mediated regulation of the TGF-β/Activin/Nodal pathway is also demonstrated in the development of pancreatic and breast cancer cells. In summary, our study highlights the crucial role of BRD9 in the regulation of hESC self-renewal and differentiation, as well as its participation in the progression of pancreatic and breast cancers.
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Affiliation(s)
- Xuepeng Wang
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Chengcheng Song
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China
| | - Ying Ye
- Medical College of Soochow University, Suzhou 215123, China
| | - Yashi Gu
- Zhejiang University–University of Edinburgh Institute (ZJE), Zhejiang University School of Medicine, Zhejiang University, Haining 314400, China
| | - Xuemei Li
- Peninsula Cancer Research Center, School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
| | - Peixin Chen
- Medical College of Soochow University, Suzhou 215123, China
| | - Dongliang Leng
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China
| | - Jing Xiao
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China
| | - Hao Wu
- Medical College of Soochow University, Suzhou 215123, China
| | - Sisi Xie
- Zhejiang University–University of Edinburgh Institute (ZJE), Zhejiang University School of Medicine, Zhejiang University, Haining 314400, China
| | - Weiwei Liu
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China
| | - Qi Zhao
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China
| | - Di Chen
- Zhejiang University–University of Edinburgh Institute (ZJE), Zhejiang University School of Medicine, Zhejiang University, Haining 314400, China
| | - Xi Chen
- Department of Biology, Southern University of Science and Technology, Shenzhen 518000, China
| | - Qiang Wu
- The State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
- The Precision Regenerative Medicine Centre, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Guokai Chen
- Centre of Reproduction, Development and Aging, Faculty of Health Sciences, University of Macau, Taipa, Macao SAR 999078, China
| | - Wensheng Zhang
- Medical College of Soochow University, Suzhou 215123, China
- Peninsula Cancer Research Center, School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo, 255049, China
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13
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Jiang M, Hua S, Zou L, Wang Y, Li P. Comprehensive online two-dimensional liquid chromatography coupled to hybrid linear ion trap Orbitrap mass spectrometry with optimized dilution and modulation for analysis of Huangqi Guizhi Wuwu decoction. Anal Bioanal Chem 2023; 415:6399-6410. [PMID: 37707668 DOI: 10.1007/s00216-023-04915-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/20/2023] [Accepted: 08/21/2023] [Indexed: 09/15/2023]
Abstract
Huangqi Guizhi Wuwu decoction (HGWD), as a classical formula, has been used for thousands of years in China. In this work, a comprehensive strategy was proposed for characterizing the chemical profile of HGWD based on online two-dimensional hydrophilic interaction and reversed-phase liquid chromatography coupled with hybrid linear ion trap-Orbitrap mass spectrometry (online HILIC × RP-ESI/HRMS/MSn). The compounds in HGWD were first separated by the combined use of an XBridge amide column (150 × 4.6 mm, 3.5 μm) and Accucore C18 column (50 mm × 4.6 mm, 2.6 μm). Modulation with assistant technology, including trap columns and online dilution, was optimized and developed to decrease potential analyte loss and improve the resolution of the system. Subsequently, the accurate mass was determined by high-resolution Orbitrap and MSn fragment data by a hybrid linear ion trap (LTQ). In total, 170 chemical constituents were unambiguously identified or tentatively characterized in both positive and negative ion modes. Our study demonstrated that the proposed online HILIC × RP system coupled to the LTQ-Orbitrap MS platform is an efficient analytical technique for characterizing the chemical profile of multicomponent systems.
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Affiliation(s)
- Maoyuan Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Shiyao Hua
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Liang Zou
- School of Food and Biological Engineering, Chengdu University, Chengdu, 610106, China
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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14
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Lyu Y, Tian X. MWG-UNet: Hybrid Deep Learning Framework for Lung Fields and Heart Segmentation in Chest X-ray Images. Bioengineering (Basel) 2023; 10:1091. [PMID: 37760193 PMCID: PMC10525798 DOI: 10.3390/bioengineering10091091] [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: 08/14/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Deep learning technology has achieved breakthrough research results in the fields of medical computer vision and image processing. Generative adversarial networks (GANs) have demonstrated a capacity for image generation and expression ability. This paper proposes a new method called MWG-UNet (multiple tasking Wasserstein generative adversarial network U-shape network) as a lung field and heart segmentation model, which takes advantages of the attention mechanism to enhance the segmentation accuracy of the generator so as to improve the performance. In particular, the Dice similarity, precision, and F1 score of the proposed method outperform other models, reaching 95.28%, 96.41%, and 95.90%, respectively, and the specificity surpasses the sub-optimal models by 0.28%, 0.90%, 0.24%, and 0.90%. However, the value of the IoU is inferior to the optimal model by 0.69%. The results show the proposed method has considerable ability in lung field segmentation. Our multi-organ segmentation results for the heart achieve Dice similarity and IoU values of 71.16% and 74.56%. The segmentation results on lung fields achieve Dice similarity and IoU values of 85.18% and 81.36%.
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Affiliation(s)
| | - Xiaolin Tian
- School of Computer Science and Engineering, Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macau 999078, China;
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15
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Zhao ZA, Yan L, Wen J, Satyanarayanan SK, Yu F, Lu J, Liu YU, Su H. Cellular and molecular mechanisms in vascular repair after traumatic brain injury: a narrative review. Burns Trauma 2023; 11:tkad033. [PMID: 37675267 PMCID: PMC10478165 DOI: 10.1093/burnst/tkad033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/01/2023] [Accepted: 05/26/2023] [Indexed: 09/08/2023]
Abstract
Traumatic brain injury (TBI) disrupts normal brain function and is associated with high morbidity and fatality rates. TBI is characterized as mild, moderate or severe depending on its severity. The damage may be transient and limited to the dura matter, with only subtle changes in cerebral parenchyma, or life-threatening with obvious focal contusions, hematomas and edema. Blood vessels are often injured in TBI. Even in mild TBI, dysfunctional cerebral vascular repair may result in prolonged symptoms and poor outcomes. Various distinct types of cells participate in vascular repair after TBI. A better understanding of the cellular response and function in vascular repair can facilitate the development of new therapeutic strategies. In this review, we analyzed the mechanism of cerebrovascular impairment and the repercussions following various forms of TBI. We then discussed the role of distinct cell types in the repair of meningeal and parenchyma vasculature following TBI, including endothelial cells, endothelial progenitor cells, pericytes, glial cells (astrocytes and microglia), neurons, myeloid cells (macrophages and monocytes) and meningeal lymphatic endothelial cells. Finally, possible treatment techniques targeting these unique cell types for vascular repair after TBI are discussed.
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Affiliation(s)
- Zi-Ai Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
- Department of Neurology, General Hospital of Northern Theater Command, 83# Wen-Hua Road, Shenyang 110840, China
| | - Lingli Yan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Jing Wen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Senthil Kumaran Satyanarayanan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Feng Yu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Jiahong Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
| | - Yong U Liu
- Laboratory of Neuroimmunology in Health and Disease Institute, Guangzhou First People’s Hospital School of Medicine, South China University of Technology, Guangzhou Higher Education Mega Center, Panyu District, Guangzhou 511400, China
| | - Huanxing Su
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macau 999078, China
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16
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Yang L, Gao Y, Wei J, Cheng Z, Wu S, Zou L, Li S, Li P. Selenium-integrated conjugated oligomer nanoparticles with high photothermal conversion efficiency for NIR-II imaging-guided cancer phototheranostics in vivo. J Nanobiotechnology 2023; 21:314. [PMID: 37667389 PMCID: PMC10476403 DOI: 10.1186/s12951-023-02080-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/26/2023] [Indexed: 09/06/2023] Open
Abstract
Second near-infrared (NIR-II) fluorescence imaging in the range of 1000-1700 nm has great prospects for in vivo imaging and theranostics monitoring. At present, few NIR-II probes with theranostics properties have been developed, especially the high-performance organic theranostics material remains underexploited. Herein, we demonstrate a selenium (Se)-tailoring method to develop high-efficient NIR-II imaging-guided material for in vivo cancer phototheranostics. Via Se-tailoring strategy, conjugated oligomer TPSe-based nanoparticles (TPSe NPs) achieve bright NIR-II emission up to 1400 nm and exhibit a relatively high photothermal conversion efficiency of 60% with good stability. Moreover, the TPSe NPs demonstrate their photothermal ablation of cancer cells in vitro and tumor in vivo with the guidance of NIR-II imaging. It is worth noting that the TPSe NPs have good biocompatibility without obvious side effects. Thus, this work provides new insight into the development of NIR-II theranostics agents.
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Affiliation(s)
- Lele Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 999078, China
| | - Yijian Gao
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215000, China
| | - Jinchao Wei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 999078, China
| | - Zehua Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 999078, China
| | - Sijia Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 999078, China
| | - Liang Zou
- School of Medicine, Chengdu University, Chengdu, 610106, China
| | - Shengliang Li
- College of Pharmaceutical Sciences, Soochow University, Suzhou, 215000, China.
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, 999078, China.
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17
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Zhang L, Wang S, Wang Q, Shao H, Jin Z. Dendritic Solid Polymer Electrolytes: A New Paradigm for High-Performance Lithium-Based Batteries. Adv Mater 2023; 35:e2303355. [PMID: 37269533 DOI: 10.1002/adma.202303355] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/16/2023] [Indexed: 06/05/2023]
Abstract
Li-ions battery is widely used and recognized, but its energy density based on organic electrolytes has approached the theoretical upper limit, while the use of organic electrolytes also brings some safety hazards (leakage and flammability). Polymer electrolytes (PEs) are expected to fundamentally solve the safety problem and improve energy density. Therefore, Li-ions battery based on solid PE has become a research hotspot in recent years. However, low ionic conductivity and poor mechanical properties, as well as a narrow electrochemical window limit its further development. Dendritic PEs with unique topology structure has low crystallinity, high segmental mobility, and reduced chain entanglement, providing a new avenue for designing high-performance PEs. In this review, the basic concept and synthetic chemistry of dendritic polymers are first introduced. Then, this story will turn to how to balance the mechanical properties, ionic conductivity, and electrochemical stability of dendritic PEs from synthetic chemistry. In addition, accomplishments on dendritic PEs based on different synthesis strategies and recent advances in battery applications are summarized and discussed. Subsequently, the ionic transport mechanism and interfacial interaction are deeply analyzed. In the end, the challenges and prospects are outlined to promote further development in this booming field.
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Affiliation(s)
- Lei Zhang
- School of Materials and Chemical Engineering, Chuzhou University, 1528 Fengle Avenue, Chuzhou, 239099, China
| | - Shi Wang
- School of Materials and Chemical Engineering, Chuzhou University, 1528 Fengle Avenue, Chuzhou, 239099, China
- State Key Laboratory of Organic Electronics & Information Displays (SKLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
- State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High-Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Qian Wang
- Institute of Energy Innovation, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Huaiyu Shao
- Institute of Applied Physics and Materials Engineering (IAPME), University of Macau, N23-4022, Avenida da Universidad, Taipa, Maca, 519000, China
| | - Zhong Jin
- State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High-Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
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18
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He B, Liu T, Wang C, Wen Z, Sun B, Wen W, Xing G, Gao X, Chen S. Improving Crystallinity and Out-of-Plane Orientation in Quasi-2D Ruddlesden-Popper Perovskite by Fluorinated Organic Salt for Light-Emitting Diodes. Small 2023:e2303255. [PMID: 37606884 DOI: 10.1002/smll.202303255] [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] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/16/2023] [Indexed: 08/23/2023]
Abstract
Fluoro-substituted aromatic alkylammonium spacer cations are found effective to improve the performance of quasi-2D perovskite light-emitting diodes (PeLEDs). The fluorine substitution is generally attributed to the defect passivation, quantum well width control, and energy level adjustments. However, the substituted cations can also affect the crystallization process but is not thoroughly studied. Herein, a comparison study is carried out using bare PEA cation and three different fluoro-substituted PEA (x-F-PEA, x = o, ortho; m, meta; p, para) cations to investigate the impacts of different substitution sites on the perovskite crystallization and orientations. By using GIWAXS, p-F-PEA cation is found to induce the strongest preferential out-of-plane orientations with the best crystallinity in quasi-2D perovskite. Using dynamic light scattering (DLS) methods, larger colloidal particles (630 nm) are revealed in p-F-PEA precursor solutions than the PEA cations (350 nm). The larger particles can accelerate the crystallization process and induce out-of-plane orientation from increased dipole-dipole interaction. The transient absorption measurement confirms longer radiative recombination lifetime, proving beneficial effect of p-F-PEA cation. As a result, the fabricated p-F-PEA-based PeLEDs achieved the highest EQE of 15.2%, which is higher than those of PEA- (8.8%), o-F-PEA- (4.3%), and m-F-PEA-based (10.3%) PeLEDs.
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Affiliation(s)
- Bingchen He
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
| | - Tanghao Liu
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
- Department of Physics, Hong Kong Baptist University, Hong Kong, SAR, 999077, China
| | - Chenyue Wang
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Zhaorui Wen
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
| | - Bo Sun
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Wen Wen
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Guichuan Xing
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
| | - Xingyu Gao
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Shi Chen
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China
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Hu J, Song E, Liu Y, Yang Q, Sun J, Chen J, Meng Y, Jia Y, Yu Z, Ran Y, Shao L, Shum PP. Fiber Laser-Based Lasso-Shaped Biosensor for High Precision Detection of Cancer Biomarker-CEACAM5 in Serum. Biosensors (Basel) 2023; 13:674. [PMID: 37504073 PMCID: PMC10377356 DOI: 10.3390/bios13070674] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/09/2023] [Accepted: 06/21/2023] [Indexed: 07/29/2023]
Abstract
Detection of trace tumor markers in blood/serum is essential for the early screening and prognosis of cancer diseases, which requires high sensitivity and specificity of the assays and biosensors. A variety of label-free optical fiber-based biosensors has been developed and yielded great opportunities for Point-of-Care Testing (POCT) of cancer biomarkers. The fiber biosensor, however, suffers from a compromise between the responsivity and stability of the sensing signal, which would deteriorate the sensing performance. In addition, the sophistication of sensor preparation hinders the reproduction and scale-up fabrication. To address these issues, in this study, a straightforward lasso-shaped fiber laser biosensor was proposed for the specific determination of carcinoembryonic antigen (CEA)-related cell adhesion molecules 5 (CEACAM5) protein in serum. Due to the ultra-narrow linewidth of the laser, a very small variation of lasing signal caused by biomolecular bonding can be clearly distinguished via high-resolution spectral analysis. The limit of detection (LOD) of the proposed biosensor could reach 9.6 ng/mL according to the buffer test. The sensing capability was further validated by a human serum-based cancer diagnosis trial, enabling great potential for clinical use. The high reproduction of fabrication allowed the mass production of the sensor and extended its utility to a broader biosensing field.
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Affiliation(s)
- Jie Hu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Enlai Song
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Yuhui Liu
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiaochu Yang
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Junhui Sun
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jinna Chen
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yue Meng
- Department of Clinical Laboratory, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 511436, China
| | - Yanwei Jia
- State-Key Laboratory of Analog and Mixed-Signal VLSI, Institute of Microelectronics, Faculty of Science and Technology-ECE, Faculty of Health Sciences, MoE Frontiers Science Center for Precision Oncology, University of Macau, Macau 999078, China
| | - Zhiguang Yu
- Medcaptain Medical Technology Co., Ltd., Shenzhen 518055, China
| | - Yang Ran
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Liyang Shao
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Perry Ping Shum
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China
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Li S, Xia J, Wen Z, Gu H, Guo J, Liang C, Pan H, Wang X, Chen S. The Formation Mechanism of (001) Facet Dominated α-FAPbI 3 Film by Pseudohalide Ions for High-Performance Perovskite Solar Cells. Adv Sci (Weinh) 2023:e2300056. [PMID: 37088801 DOI: 10.1002/advs.202300056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/10/2023] [Indexed: 05/03/2023]
Abstract
Formamidinium lead triiodide (α-FAPbI3 ) has been widely used in high-efficiency perovskite solar cells due to its small band gap and excellent charge-transport properties. Recently, some additives show facet selectivity to generate a (001) facet-dominant film during crystallization. However, the mechanism to realize such (001) facet selectivity is not fully understood. Here, the authors attempted to use three ammonia salts NH4 X (X are pseudohalide anions) to achieve better (001) facet selectivity in perovskite crystallization and improved crystallinity. After addition, the (001) facet dominance is generally increased with the best effect from SCN- anions. The theoretical calculation revealed three mechanisms of such improvements. First, pseudohalide anions have larger binding energy than the iodine ion to bind the facets including (110), (210), and (111), slowing down the growth of these facets. The large binding energy also reduces nucleation density and improves crystallinity. Second, pseudohalide ions improve phase purity by increasing the formation energies of the δ-phase and other hexagonal polytypes, retarding the α- to δ-phase transition. Third, the strong binding of these anions can also effectively passivate the iodine vacancies and suppress nonradiative recombination. As a result, the devices show a power conversion efficiency of 24.11% with a Voc of 1.181 V.
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Affiliation(s)
- Shengwen Li
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Junmin Xia
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Zhaorui Wen
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Hao Gu
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Jia Guo
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Chao Liang
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Xingzhu Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province, 418055, China
| | - Shi Chen
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
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21
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Li Z, Chen K, Zhu YZ. Leonurine inhibits cardiomyocyte pyroptosis to attenuate cardiac fibrosis via the TGF-β/Smad2 signalling pathway. PLoS One 2022; 17:e0275258. [PMID: 36327230 PMCID: PMC9632889 DOI: 10.1371/journal.pone.0275258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022] Open
Abstract
Cardiac fibrosis is a common cause of most cardiovascular diseases. Leonurine, an alkaloid from Herba leonuri, had been indicated to treat cardiovascular diseases due to its cardioprotective effects. Recently, pyroptosis, a programmed form of cell death that releases inflammatory factors, has been shown to play an important role in cardiovascular diseases, especially cardiac fibrosis. This study examined the novel mechanism by which leonurine protects against cardiac fibrosis. In rats with isoprenaline-induced cardiac fibrosis, leonurine inhibited the expression of proteins related to pyroptosis and improved cardiac fibrosis. In vitro, leonurine inhibited the expression of proteins related to pyroptosis and fibrosis. Additionally, leonurine regulated the TGF-β/Smad2 signalling pathway and inhibited pyroptosis to protect cardiomyocytes and improve cardiac fibrosis. Therefore, leonurine might improve cardiac fibrosis induced by isoprenaline by inhibiting pyroptosis via the TGF-β/Smad2 signalling pathway.
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Affiliation(s)
- Zhaoyi Li
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, Taipa, China
- School of Pharmacy, Macau University of Science and Technology, Macau, Taipa, China
| | - Keyuan Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, Taipa, China
- School of Pharmacy, Macau University of Science and Technology, Macau, Taipa, China
| | - Yi Zhun Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, Taipa, China
- School of Pharmacy, Macau University of Science and Technology, Macau, Taipa, China
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22
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Sinha S, Tam B, Wang SM. RBD Double Mutations of SARS-CoV-2 Strains Increase Transmissibility through Enhanced Interaction between RBD and ACE2 Receptor. Viruses 2021; 14:1. [PMID: 35062205 PMCID: PMC8781274 DOI: 10.3390/v14010001] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/28/2021] [Accepted: 12/15/2021] [Indexed: 12/14/2022] Open
Abstract
The COVID-19 pandemic, caused by SARS-CoV-2, has led to catastrophic damage for global human health. The initial step of SARS-CoV-2 infection is the binding of the receptor-binding domain (RBD) in its spike protein to the ACE2 receptor in the host cell membrane. Constant evolution of SARS-CoV-2 generates new mutations across its genome including the coding region for the RBD in the spike protein. In addition to the well-known single mutation in the RBD, the recent new mutation strains with an RBD "double mutation" are causing new outbreaks globally, as represented by the delta strain containing RBD L452R/T478K. Although it is considered that the increased transmissibility of double-mutated strains could be attributed to the altered interaction between the RBD and ACE2 receptor, the molecular details remain to be elucidated. Using the methods of molecular dynamics simulation, superimposed structural comparison, free binding energy estimation, and antibody escaping, we investigated the relationship between the ACE2 receptor and the RBD double mutants of L452R/T478K (delta), L452R/E484Q (kappa), and E484K/N501Y (beta, gamma). The results demonstrated that each of the three RBD double mutants altered the RBD structure and enhanced the binding of the mutated RBD to ACE2 receptor. Together with the mutations in other parts of the virus genome, the double mutations increase the transmissibility of SARS-CoV-2 to host cells.
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Affiliation(s)
| | | | - San Ming Wang
- MOE Frontiers Science Center for Precision Oncology, Faculty of Health Sciences, University of Macau, Taipa, Macau 999087, China; (S.S.); (B.T.)
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Tam B, Sinha S, Qin Z, Wang SM. Comprehensive Identification of Deleterious TP53 Missense VUS Variants Based on Their Impact on TP53 Structural Stability. Int J Mol Sci 2021; 22:11345. [PMID: 34768775 PMCID: PMC8583684 DOI: 10.3390/ijms222111345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 11/30/2022] Open
Abstract
TP53 plays critical roles in maintaining genome stability. Deleterious genetic variants damage the function of TP53, causing genome instability and increased cancer risk. Of the large quantity of genetic variants identified in TP53, however, many remain functionally unclassified as variants of unknown significance (VUS) due to the lack of evidence. This is reflected by the presence of 749 (42%) VUS of the 1785 germline variants collected in the ClinVar database. In this study, we addressed the deleteriousness of TP53 missense VUS. Utilizing the protein structure-based Ramachandran Plot-Molecular Dynamics Simulation (RPMDS) method that we developed, we measured the effects of missense VUS on TP53 structural stability. Of the 340 missense VUS tested, we observed deleterious evidence for 193 VUS, as reflected by the TP53 structural changes caused by the VUS-substituted residues. We compared the results from RPMDS with those from other in silico methods and observed higher specificity of RPMDS in classification of TP53 missense VUS than these methods. Data from our current study address a long-standing challenge in classifying the missense VUS in TP53, one of the most important tumor suppressor genes.
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Affiliation(s)
| | | | | | - San Ming Wang
- Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau 999078, China; (B.T.); (S.S.); (Z.Q.)
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Sheng F, Zhang L, Wang S, Yang L, Li P. Deacetyl Ganoderic Acid F Inhibits LPS-Induced Neural Inflammation via NF-κB Pathway Both In Vitro and In Vivo. Nutrients 2019; 12:E85. [PMID: 31892211 PMCID: PMC7019812 DOI: 10.3390/nu12010085] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/21/2019] [Accepted: 12/24/2019] [Indexed: 01/08/2023] Open
Abstract
Microglia mediated neuronal inflammation has been widely reported to be responsible for neurodegenerative disease. Deacetyl ganoderic acid F (DeGA F) is a triterpenoid isolated from Ganoderma lucidum, which is a famous edible and medicinal mushroom used for treatment of dizziness and insomnia in traditional medicine for a long time. In this study the inhibitory effects and mechanisms of DeGA F against lipopolysaccharide (LPS)-induced inflammation both in vitro and in vivo were investigated. On murine microglial cell line BV-2 cells, DeGA F treatment inhibited LPS-triggered NO production and iNOS expression and affected the secretion and mRNA levels of relative inflammatory cytokines. DeGA F inhibited LPS-induced activation of the NF-κB pathway, as evidenced by decreased phosphorylation of IKK and IκB and the nuclear translocation of P65. In vivo, DeGA F treatment effectively inhibited NO production in zebrafish embryos. Moreover, DeGA F suppressed the serum levels of pro-inflammatory cytokines, including TNF-α and IL-6 in LPS-stimulated mice model. DeGA F reduced inflammatory response by suppressing microglia and astrocytes activation and also suppressed LPS-induced NF-κB activation in mice brains. Taken together, DeGA F exhibited remarkable anti-inflammatory effects and promising therapeutic potential for neural inflammation associated diseases.
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Affiliation(s)
- Feiya Sheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China; (F.S.); (L.Z.); (S.W.); (L.Y.)
| | - Lele Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China; (F.S.); (L.Z.); (S.W.); (L.Y.)
- School of Medicine, Chengdu University, Chengdu 610106, China
| | - Songsong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China; (F.S.); (L.Z.); (S.W.); (L.Y.)
| | - Lele Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China; (F.S.); (L.Z.); (S.W.); (L.Y.)
| | - Peng Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China; (F.S.); (L.Z.); (S.W.); (L.Y.)
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25
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Shi J, Hu H, Harnett J, Zheng X, Liang Z, Wang YT, Ung COL. An evaluation of randomized controlled trials on nutraceuticals containing traditional Chinese medicines for diabetes management: a systematic review. Chin Med 2019; 14:54. [PMID: 31798675 PMCID: PMC6884840 DOI: 10.1186/s13020-019-0276-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/07/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Nutraceuticals containing traditional Chinese medicine (TCM) are promoted for use in the management of diabetes. The evidence to support such use is largely unknown. This study aimed to summarise and evaluate the literature reporting the results of randomized controlled trials (RCTs) investigating the effects of nutraceuticals in people living with diabetes. METHODS Literature from four electronic databases (PubMed, Scopus, CINAHL and Web of Science) was searched following PRISMA guidelines to yield RCT publications on nutraceutical for diabetes management published since 2009. The quality of reporting was assessed using the CONSORT 2010 checklist statement. Risk-of-bias for each study was assessed using the Cochrane risk of bias tool. RESULTS Out of 1978 records identified in the initial search, 24 randomized, double/triple-blinded, controlled trials that investigated the effect of nutraceuticals covering 17 different TCM herbs for diabetes management were selected. Participants included people who were diabetic (n = 16), pre-diabetic (n = 3) or predisposed to diabetes (n = 5). Sample sizes ranged between 23 and 117 for 2 arms, or 99-165 for 3 arms. Comparisons were made against placebo (n = 22), conventional medicine (n = 1), or regular diet (n = 1) for a duration between 4 and 24 weeks. All but one study tested the effect on fasting blood glucose levels (n = 23) or glycated haemoglobin levels (n = 18), and/or postprandial 2-h blood glucose levels (n = 4) as the primary outcomes. Nineteen studies reported some statistically significant reductions in the respective measures while 5 studies showed no effect on primary or secondary outcomes. None of the included studies met all the criteria for the CONSORT guidelines. Incomplete reporting about randomization and blinding, and a lack of ancillary analyses to explore other influential factors and potential harms associated with the use were repeatedly noted. Based on the Cochrane risk-of-bias tool, 19 studies were deemed to have a high risk of bias mainly attributed to sponsor bias. CONCLUSIONS There is some evidence to suggest positive clinical outcomes in response to the administration of a range of nutraceuticals containing TCM in the management of diabetes. However, these results must be interpreted with caution due to the overall low quality of the trials.
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Affiliation(s)
- Junnan Shi
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
| | - Hao Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
| | - Joanna Harnett
- The University of Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia
| | - Xiaoting Zheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
| | - Zuanji Liang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
| | - Yi-Tao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
| | - Carolina Oi Lam Ung
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao
- The University of Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia
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26
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Pan H, Guo R, Ju Y, Wang Q, Zhu J, Xie Y, Zheng Y, Li T, Liu Z, Lu L, Li F, Tong B, Xiao L, Xu X, Leung ELH, Li R, Yang H, Wang J, Zhou H, Jia H, Liu L. A single bacterium restores the microbiome dysbiosis to protect bones from destruction in a rat model of rheumatoid arthritis. Microbiome 2019; 7:107. [PMID: 31315667 PMCID: PMC6637628 DOI: 10.1186/s40168-019-0719-1] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 07/03/2019] [Indexed: 05/04/2023]
Abstract
Background Early treatment is key for optimizing the therapeutic success of drugs, and the current initiating treatment that blocks the progression of bone destruction during the pre-arthritic stages remains unsatisfactory. The microbial disorder in rheumatoid arthritis (RA) patients is significantly reversed with effective treatment. Modulating aberrant gut microbiomes into a healthy state is a potential therapeutic approach for preventing bone damage. Results By using metagenomic shotgun sequencing and a metagenome-wide association study, we assessed the effect of Lactobacillus casei (L. casei) on the induction of arthritis as well as on the associated gut microbiota and immune disorders in adjuvant-induced arthritis (AIA) rats. Treatment of AIA rats with L. casei inhibited joint swelling, lowered arthritis scores, and prevented bone destruction. Along with the relief of arthritis symptoms, dysbiosis in the microbiome of arthritic rats was significantly reduced after L. casei intervention. The relative abundance of AIA-decreased Lactobacillus strains, including Lactobacillus hominis, Lactobacillus reuteri, and Lactobacillus vaginalis, were restored to normal and Lactobacillus acidophilus was upregulated by the administration of L. casei to the AIA rats. Moreover, L. casei downregulated the expression of pro-inflammatory cytokines, which are closely linked to the effect of the L. casei treatment-associated microbes. Functionally, the maintenance of the redox balance of oxidative stress was involved in the improvement in the L. casei-treated AIA rats. Conclusion A single bacterium, L. casei (ATCC334), was able to significantly suppress the induction of AIA and protect bones from destruction in AIA rats by restoring the microbiome dysbiosis in the gut, indicating that using probiotics may be a promising strategy for treating RA, especially in the early stage of the disease. Electronic supplementary material The online version of this article (10.1186/s40168-019-0719-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hudan Pan
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
| | - Ruijin Guo
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
| | - Yanmei Ju
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
| | - Qi Wang
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, 518083 China
| | - Jie Zhu
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
| | - Ying Xie
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
| | - Yanfang Zheng
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
- Fujian University of Traditional Chinese Medicine, No.1, Qiuyang Road, Minhoushangjie, Fuzhou, 350122 Fujian China
| | - Ting Li
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
| | - Zhongqiu Liu
- International Institute for Translational Research of Traditional Chinese Medicine of Guangzhou University of Chinese Medicine, Guangzhou, 510006 Guangdong China
| | - Linlin Lu
- International Institute for Translational Research of Traditional Chinese Medicine of Guangzhou University of Chinese Medicine, Guangzhou, 510006 Guangdong China
| | - Fei Li
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, 518083 China
| | - Bin Tong
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
| | - Liang Xiao
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
- Shenzhen Engineering Laboratory of Detection and Intervention of human intestinal microbiome, BGI-Shenzhen, Shenzhen, 518083 China
| | - Xun Xu
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
| | - Elaine Lai-Han Leung
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
| | - Runze Li
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
| | - Huanming Yang
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
- James D. Watson Institute of Genome Sciences, Hangzhou, 310058 China
| | - Jian Wang
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
- James D. Watson Institute of Genome Sciences, Hangzhou, 310058 China
| | - Hua Zhou
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
| | - Huijue Jia
- BGI-Shenzhen, Shenzhen, 518083 China
- China National Genebank, BGI-Shenzhen, Shenzhen, 518120 China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macao University of Science and Technology, Macao, China
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Gao C, Liu L, Zhou Y, Bian Z, Wang S, Wang Y. Novel drug delivery systems of Chinese medicine for the treatment of inflammatory bowel disease. Chin Med 2019; 14:23. [PMID: 31236131 PMCID: PMC6580650 DOI: 10.1186/s13020-019-0245-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 06/05/2019] [Indexed: 12/14/2022] Open
Abstract
Inflammatory bowel disease (IBD) is an idiopathic intestinal inflammatory disease that comprises ulcerative colitis (UC) and Crohn's disease (CD). IBD involves the ileum, rectum, and colon, and common clinical manifestations of IBD are diarrhea, abdominal pain, and even bloody stools. Currently, non-steroidal anti-inflammatory drugs, glucocorticoids, and immunosuppressive agents are used for the treatment of IBD, while their clinical application is severely limited due to unwanted side effects. Chinese medicine (CM) is appealing more and more attention and investigation for the treatment of IBD owing to the potent anti-inflammation pharmacological efficacy and high acceptance by patients. In recent years, novel drug delivery systems are introduced apace to encapsulate CM and many CM-derived active constituents in order to improve solubility, stability and targeting ability. In this review, advanced drug delivery systems developed in the past and present to deliver CM for the treatment of IBD are summarized and future directions are discussed.
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Affiliation(s)
- Caifang Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, SAR China
| | - Lijuan Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, SAR China
- PU-UM Innovative Institute of Chinese Medical Sciences, Guangdong-Macau Traditional Chinese Medicine Technology Industrial Park Development Co., Ltd, Hengqin New Area, Zhuhai, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan China
| | - Yangyang Zhou
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, SAR China
| | - Zhaoxiang Bian
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, SAR China
| | - Shengpeng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, SAR China
- Leiden University European Center for Chinese Medicine and Natural Compounds, Institute of Biology, Leiden University, Leiden, The Netherlands
| | - Yitao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Avenida da Universidade, Taipa, Macao, SAR China
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Zhang M, Pan Y, Tang D, Dorfman RG, Xu L, Zhou Q, Zhou L, Wang Y, Li Y, Yin Y, Kong B, Friess H, Zhao S, Wu JL, Wang L, Zou X. Low levels of pyruvate induced by a positive feedback loop protects cholangiocarcinoma cells from apoptosis. Cell Commun Signal 2019; 17:23. [PMID: 30866966 PMCID: PMC6417221 DOI: 10.1186/s12964-019-0332-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/20/2019] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Cancer cells avidly consume glucose and convert it to lactate, resulting in a low pyruvate level. This phenomenon is known as the Warburg effect, and is important for cell proliferation. Although cMyc has often been described as an oncoprotein that preferentially contributes to the Warburg effect and tumor proliferation, mechanisms of action remain unclear. Histone deacetylase 3 (HDAC3) regulates gene expression by removing acetyl groups from lysine residues, as well as has an oncogenic role in apoptosis and contributes to the proliferation of many cancer cells including cholangiocarcinoma (CCA). HDAC inhibitors display antitumor activity in many cancer cell lines. Cancer cells maintain low levels of pyruvate to prevent inhibition of HDAC but the mechanisms remain elusive. The purpose of our study was to explore the role of cMyc in regulating pyruvate metabolism, as well as to investigate whether the inhibitory effect of pyruvate on HDAC3 could hold promise in the treatment of cancer cells. METHODS We studied pyruvate levels in CCA cell lines using metabolite analysis, and analyzed the relationship of pyruvate levels and cell proliferation with cell viability analysis. We cultivated CCA cell lines with high or low levels of pyruvate, and then analyzed the protein levels of HDAC3 and apoptotic markers via Western Blotting. We then explored the reasons of low levels of pyruvate by using seahorse analysis and 13C6 metabolites tracing analysis, and then confirmed the results using patient tissue protein samples through Western Blotting. Bioinformatics analysis and transfection assay were used to confirm the upstream target of the low levels of pyruvate status in CCA. The regulation of cMyc by HDAC3 was studied through immunoprecipitation and Western Blotting. RESULTS We confirmed downregulated pyruvate levels in CCA, and defined that high pyruvate levels correlated with reduced cell proliferation levels. Downregulated pyruvate levels decreased the inhibition to HDAC3 and consequently protected CCA cells from apoptosis. Synergistically upregulated LDHA, PKM2 levels resulted in low levels of pyruvate, as well as poor patient survival. We also found that low levels of pyruvate contributed to proliferation of CCA cells and confirmed that the upstream target is cMyc. Conversely, high activity of HDAC3 stabilized cMyc protein by preferential deacetylating cMyc at K323 site, which further contributed to the low pyruvate levels. Finally, this creates a positive feedback loop that maintained the low levels of pyruvate and promoted CCA proliferation. CONCLUSIONS Collectively, our findings identify a role for promoting the low pyruvate levels regulated by c-Myc, and its dynamic acetylation in cancer cell proliferation. These targets, as markers for predicting tumor proliferation in patients undergoing clinical treatments, could pave the way towards personalized therapies.
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Affiliation(s)
- Mingming Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
- Key laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, 200032 China
- School of Life Sciences, Fudan University, Shanghai, China
| | - Yida Pan
- Department of Digestive Diseases of Huashan Hospital, Shanghai, China
| | - Dehua Tang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
| | | | - Lei Xu
- Department of Gastroenterology, Nanjing Medical University Affiliated Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Qian Zhou
- School of Life Sciences, Fudan University, Shanghai, China
| | - Lixing Zhou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
| | - Yuming Wang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
| | - Yang Li
- Department of Gastroenterology, Nanjing Medical University Affiliated Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, China
| | - Yuyao Yin
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
| | - Bo Kong
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
- Department of Surgery, Technical University of Munich (TUM), Munich, Germany
| | - Helmut Friess
- Department of Surgery, Technical University of Munich (TUM), Munich, Germany
| | - Shimin Zhao
- Key laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD), Fudan University, Shanghai, 200032 China
- School of Life Sciences, Fudan University, Shanghai, China
| | - Jian-lin Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Faculty of Chinese Medicine, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macao 442000 People’s Republic of China
| | - Lei Wang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
| | - Xiaoping Zou
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, No.321 Zhongshan Road, 210008 Nanjing, People’s Republic of China
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Deng SP, Yang YL, Cheng XX, Li WR, Cai JY. Synthesis, Spectroscopic Study and Radical Scavenging Activity of Kaempferol Derivatives: Enhanced Water Solubility and Antioxidant Activity. Int J Mol Sci 2019; 20:E975. [PMID: 30813425 PMCID: PMC6412309 DOI: 10.3390/ijms20040975] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/13/2019] [Accepted: 02/19/2019] [Indexed: 12/19/2022] Open
Abstract
Kaempferol (Kae) is a natural flavonoid with potent antioxidant activity, but its therapeutic use is limited by its low aqueous solubility. Here, a series of Kae derivatives were synthesized to improve Kae dissolution property in water and antioxidant activity. These compounds included sulfonated Kae (Kae-SO₃), gallium (Ga) complexes with Kae (Kae-Ga) and Kae-SO₃ (Kae-SO₃-Ga). The compound structures were characterized by high-resolution mass spectrometry (HRMS), nuclear magnetic resonance (NMR) spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy and thermal methods (TG/DSC). The results showed that a sulfonic group (-SO₃) was successfully tethered on the C3' of Kae to form Kae-SO₃. And in the metal complexation, 4-CO and 3-OH of the ligand participated in the coordination with Ga(III). The metal-to-ligand ratio 1:2 was suggested for both complexes. Interestingly, Kae-SO₃-Ga was obviously superior to other compounds in terms of overcoming the poor water-solubility of free Kae, and the solubility of Kae-SO₃-Ga was about 300-fold higher than that of Kae-Ga. Furthermore, the evaluation of antioxidant activities in vitro was carried out for Kae derivatives by using α,α-diphenyl-β-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzo-thiazoline-6-sulfonic acid) diammonium salt (ABTS) free radical scavenging. The results showed that Kae-SO₃-Ga was also optimal for scavenging free radicals in a dose-dependent manner. These data demonstrate that sulfonate kaempferol-gallium complex has a promising future as a potential antioxidant and as a potential therapeutic agent for further biomedical studies.
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Affiliation(s)
- Sui-Ping Deng
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
| | - Yi-Li Yang
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
| | - Xing-Xing Cheng
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
| | - Wen-Rong Li
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
| | - Ji-Ye Cai
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau 000853, China.
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Abstract
Natural medicines were the only option for the prevention and treatment of human diseases for thousands of years. Natural products are important sources for drug development. The amounts of bioactive natural products in natural medicines are always fairly low. Today, it is very crucial to develop effective and selective methods for the extraction and isolation of those bioactive natural products. This paper intends to provide a comprehensive view of a variety of methods used in the extraction and isolation of natural products. This paper also presents the advantage, disadvantage and practical examples of conventional and modern techniques involved in natural products research.
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Affiliation(s)
- Qing-Wen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, People’s Republic of China
| | - Li-Gen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, People’s Republic of China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou, 510632 People’s Republic of China
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Xie JY, Chen PC, Zhang JL, Gao ZS, Neves H, Zhang SD, Wen Q, Chen WD, Kwok HF, Lin Y. The prognostic significance of DAPK1 in bladder cancer. PLoS One 2017; 12:e0175290. [PMID: 28388658 PMCID: PMC5384764 DOI: 10.1371/journal.pone.0175290] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 03/23/2017] [Indexed: 12/18/2022] Open
Abstract
Bladder cancer is one of the leading causes of cancer-related death in men, however, there was only limited effective treatment for invasive bladder cancer. DAPK1 has been shown to play important role in apoptosis and autophagy to suppress cancer progression. Previous results have shown that DAPK1 promoter was hypermethylated in the majority of bladder cancer specimens, however, the prognostic significance of DAPK1 in bladder cancer has yet to be demonstrated. In the present study, we found that DAPK1 expression was negatively associated with tumor stage and a low level expression of DAPK1 in bladder cancer specimens were associated with shorter survival in bladder cancer patients in 3 independent bladder cancer datasets (n = 462). Further investigation showed that FGFR3 knockdown resulted in downregulation of DAPK1 in bladder cancer cell line, suggesting that FGFR3 may be an upstream factor of DAPK1. Further analysis of the 3 independent bladder cancer datasets have identified ACOX1, UPK2, TRAK1, PLEKHG6 and MT1X genes had their expression significantly correlated with that of DAPK1. Knockdown of DAPK1 in bladder cancer T24 cells resulted in downregulation of ACOX1, UPK2 and TRAK1. Interestingly, TRAK1, by itself, was a favorable prognostic marker in the 3 independent bladder cancer datasets. Importantly, by using connectivity mapping with DAPK1-associated gene signature, we found that vemurafenib and trametinib could possibly reverse DAPK1-associated gene signature, suggesting that inhibition of Raf/MEK pathway may be a potential therapeutic approach for bladder cancer. Indeed, treatment of vemurafenib in T24 bladder cancer cells resulted in upregulation of DAPK1 confirming our connectivity mapping, while knockdown of DAPK1 resulted in reduced sensitivity towards inhibition of Braf signaling by vemurafenib. Together, our results suggest that DAPK1 is an important prognostic marker and therapeutic target for bladder cancer and have identified possible therapeutic agents for future testing in bladder cancer models with low DAPK1 expression.
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Affiliation(s)
- Jian-Yun Xie
- Department of Urology, The Affiliated People’s Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, People’s Republic of China
| | - Peng-Chen Chen
- College of Life Sciences, Fujian Normal University, Fuzhou, Fujian Province, People’s Republic of China
| | - Jia-Li Zhang
- Department of Urology, The Affiliated People’s Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, People’s Republic of China
| | - Ze-Shou Gao
- Department of Urology, The Affiliated People’s Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, People’s Republic of China
| | - Henrique Neves
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR
| | - Shu-Dong Zhang
- Northern Ireland Centre for Stratified Medicine, University of Ulster, C-TRIC Building, Altnagelvin Hospital Campus, Glenshane Road, Londonderry, United Kingdom
| | - Qing Wen
- Centre for Cancer Research & Cell Biology, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, United Kingdom
| | - Wei-Dong Chen
- Department of Urology, The Affiliated People’s Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province, People’s Republic of China
- * E-mail: (YL); (HFK); (WDC)
| | - Hang Fai Kwok
- Faculty of Health Sciences, University of Macau, Avenida da Universidade, Taipa, Macau SAR
- * E-mail: (YL); (HFK); (WDC)
| | - Yao Lin
- College of Life Sciences, Fujian Normal University, Fuzhou, Fujian Province, People’s Republic of China
- * E-mail: (YL); (HFK); (WDC)
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