1
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Li Y, Lin X, Jiang Y, Mao D, Wu W, Li Z. Suitable Isolation Side Chains: A Simple Strategy for Simultaneously Improving the Phototherapy Efficacy and Biodegradation Capacities of Conjugated Polymer Nanoparticles. Nano Lett 2024; 24:3386-3394. [PMID: 38452250 DOI: 10.1021/acs.nanolett.3c05103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Utilizing one molecule to realize combinational photodynamic and photothermal therapy upon single-wavelength laser excitation, which relies on a multifunctional phototherapy agent, is one of the most cutting-edge research directions in tumor therapy owing to the high efficacy achieved over a short course of treatment. Herein, a simple strategy of "suitable isolation side chains" is proposed to collectively improve the fluorescence intensity, reactive oxygen species production, photothermal conversion efficiency, and biodegradation capacity. Both in vitro and in vivo results reveal the practical value and huge potential of the designed biodegradable conjugated polymer PTD-C16 with suitable isolation side chains in fluorescence image-guided combinational photodynamic and photothermal therapy. These improvements are achieved through manipulation of aggregated states by only side chain modification without changing any conjugated structure, providing new insight into the design of biodegradable high-performance phototherapy agents.
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Affiliation(s)
- Yonggang Li
- Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, P. R. China
| | - Xuan Lin
- Inner Mongolia Clinical Medical College, Inner Mongolia Medical University, Hohhot 010017, Inner Mongolia Autonomous Region, P. R. China
- Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, P. R. China
| | - Yajing Jiang
- Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, P. R. China
| | - Duo Mao
- Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, P. R. China
| | - Wenbo Wu
- Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, P. R. China
| | - Zhen Li
- Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, P. R. China
- Department of Chemistry, Wuhan University, Wuhan 430072, P. R. China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
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2
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Cao L, Lin X, Liu X, Wu M, Liu S, Wang T, Mao D, Liu B. Type-I Photosensitizer-Triggered Controllable Carbon Monoxide Release for Effective Treatment of Staph Skin Infection. Nano Lett 2023; 23:9769-9777. [PMID: 37616496 DOI: 10.1021/acs.nanolett.3c02434] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Staphylococcus aureus (S. aureus) infection is a major infectious skin disease that is highly resistant to conventional antibiotic treatment and host immune defense, leading to recurrence and exacerbation of bacterial infection. Herein, we developed a photoresponsive carbon monoxide (CO)-releasing nanocomposite by integrating anion-π+ type-I photosensitizer (OMeTBP) and organometallic complex (FeCO) for the treatment of planktonic S. aureus and biofilm-associated infections. After optimizing the molar ratio of FeCO and OMeTBP, the prepared nanoparticles, OMeTBP@FeCONPs, not only ensured sufficient loading of CO donors and efficient CO generation but also showed negligible free ROS leakage under light irradiation, which helped to avoid tissue damage caused by excessive ROS. Both in vitro and in vivo results demonstrated that OMeTBP@FeCONPs could effectively inhibit S. aureus methicillin-resistant S. aureus (MRSA), and bacterial biofilm. Our design has the potential to overcome the resistance of conventional antibiotic treatment and provide a more effective option for bacterial infections.
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Affiliation(s)
- Lei Cao
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, People's Republic of China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Xuan Lin
- Precision Medicine Institute The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, People's Republic of China
- Inner Mongolia Clinical Medical College, Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region 010017, People's Republic of China
| | - Xingang Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Min Wu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, People's Republic of China
| | - Shitai Liu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, People's Republic of China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Tongtong Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, People's Republic of China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
| | - Duo Mao
- Precision Medicine Institute The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, People's Republic of China
| | - Bin Liu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207, People's Republic of China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 117585, Singapore
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3
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Wang P, Wu B, Li M, Song Y, Chen C, Feng G, Mao D, Hu F, Liu B. Lysosome-Targeting Aggregation-Induced Emission Nanoparticle Enables Adoptive Macrophage Transfer-Based Precise Therapy of Bacterial Infections. ACS Nano 2023. [PMID: 37235750 DOI: 10.1021/acsnano.3c00796] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Traditional antibacterial procedures are getting inefficient due to the emergence of antimicrobial resistance, which makes alternative treatments in urgent demand. However, the selectivity toward infectious bacteria is still challenging. Herein, by taking advantage of the self-directed capture of infectious bacteria by macrophages, we developed a strategy to realize precise in vivo antibacterial photodynamic therapy (APDT) through adoptive photosensitizer-loaded macrophage transfer. TTD with strong reactive oxygen species (ROS) production and bright fluorescence was first synthesized and was subsequently formulated into TTD nanoparticles for lysosome targeting. TTD-loaded macrophages (TLMs) were constructed by direct incubation of TTD nanoparticles with macrophages, in which the TTD was localized in the lysosomes to meet the captured bacteria in the phagolysosomes. The TLMs could precisely capture and eradicate bacteria while being activated toward the proinflammatory and antibacterial M1 phenotype upon light illumination. More importantly, after subcutaneous injection, TLMs could effectively inhibit bacteria in the infected tissue through APDT, leading to good tissue recovery from severe bacterial infection. Overall, the engineered cell-based therapeutic approach shows great potential in the treatment of severe bacterial infectious diseases.
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Affiliation(s)
- Peng Wang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Biru Wu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Min Li
- Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, China
| | - Yuchen Song
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
| | - Chengjian Chen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Guangxue Feng
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Duo Mao
- Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, Guangzhou 510080, China
| | - Fang Hu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, China
- Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
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4
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Sun X, Li M, Wang P, Bai Q, Cao X, Mao D. Recent Organic Photosensitizer Designs for Evoking Proinflammatory Regulated Cell Death in Antitumor Immunotherapy. Small Methods 2023; 7:e2201614. [PMID: 36960933 DOI: 10.1002/smtd.202201614] [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: 12/05/2022] [Revised: 02/12/2023] [Indexed: 05/17/2023]
Abstract
In the past decades, immunotherapy has achieved a series of clinical successes in the field of cancer. However, existing therapeutic options usually show a low immune response to solid tumors caused by immunosuppressive "cold" tumor microenvironment (TME). Several types of proinflammatory regulated cell death (RCD), mainly including ferroptosis and pyroptosis, have been studied recently, which can provide proinflammatory signals and immunogenicity necessary for remodeling TME and activating an antitumor immune response. A variety of chemotherapeutic drugs are proven to be effective in the proinflammatory RCD induction of tumor cells, but several adverse effects and intrinsic drug resistance usually occur in the therapeutic process, greatly hindering their further clinical application. The emerging organic photosensitizer (PS)-based materials open new possibilities to effectively activate proinflammatory RCD through precise spatiotemporal regulation of intracellular reactive oxygen species-associated signaling pathways, which can overcome many challenges encountered in current proinflammatory RCD-mediated immunotherapy. In this review, the recent design strategies of PS probes are detailly summarized and their potential advantages for tumor-specific proinflammatory RCD induction are discussed. Moreover, the representative examples in cancer immunotherapy are highlighted and future perspectives in this emerging field are proposed.
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Affiliation(s)
- Xuan Sun
- The First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, and Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, 300060, China
| | - Min Li
- Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, 510080, China
| | - Peng Wang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515, China
| | - Qingqing Bai
- Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, 510080, China
| | - Xuchen Cao
- The First Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, and Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, Tianjin, 300060, China
| | - Duo Mao
- Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, 510080, China
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5
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Jie J, Mao D, Cao J, Feng P, Yang P. Customized Multifunctional Peptide Hydrogel Scaffolds for CAR-T-Cell Rapid Proliferation and Solid Tumor Immunotherapy. ACS Appl Mater Interfaces 2022; 14:37514-37527. [PMID: 35944246 DOI: 10.1021/acsami.2c10727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
CAR-T-cell therapies must be expanded to obtain a large number of effector cells quickly, and the current technology cannot address this challenge. A longer operational time would lose or alter the function and phenotype of CAR-T cells in response to therapy, and it also causes a loss in the optimal treatment time for patients. At present, lower survival time and homing efficiency reduce the antitumor effect of CAR-T in vivo. But nobody has solved these two issues in one system, which has a similar microenvironment of lymphoid organs to activate/expand cell delivery for immunotherapy. Here, we generated artificial, customized immune cell matrix scaffolds based on a self-assembling peptide to preserve and augment the cell phenotype in light of the characteristics of CAR-T. The all-in-one nanoscale matrix scaffolds reduced the processing time of CAR-T to 3 days and resulted in over a 10-fold increase compared with the traditional protocol. The cells were combined to modulate mechanotransduction and chemical signals, and the mimic matrix scaffolds showed optimal stiffness and adhesive ligand density, thereby accelerating CAR-T-cell proliferation. Meanwhile, engineering CAR-T-secreted intrinsic PD-1 blocking single-chain variable fragments (scFv) further increased cell proliferation and cytotoxicity by resisting the self and tumor microenvironment in a paracrine and autocrine manner. Local delivery of CAR-T cells from the scaffolds significantly enabled long-term retention, suppressed tumor growth, and increased infiltration of effector T cells compared with traditional CAR-T treatment. The application of bioengineering and genetic engineering approaches has led to the development of rapid culture environments that can control matrix scaffold properties for CAR-T-cell and cancer immunotherapies.
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Affiliation(s)
- Jing Jie
- Department of Clinical Laboratory, The First People's Hospital of Nantong, The Second Affiliated Hospital of Nantong University, 226001 Nantong, P. R. China
| | - Duo Mao
- Precision Medicine Institute, The First Affiliated Hospital of Sun Yat-Sen University, Sun Yat-Sen University, 510080 Guangzhou, P. R. China
| | - Jie Cao
- Department of Pathology, The First People's Hospital of Nantong, The Second Affiliated Hospital of Nantong University, 226001 Nantong, P. R. China
| | - Panfeng Feng
- Department of Pharmacy, The First People's Hospital of Nantong, The Second Affiliated Hospital of Nantong University, 226001 Nantong, P. R. China
| | - Pengxiang Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Nantong University, 226001 Nantong, P. R. China
- Institute of Cancer Prevention and Treatment, Heilongjiang Academy of Medical Science, Harbin Medical University, 150081 Harbin, P. R. China
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6
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Wang KN, Liu LY, Mao D, Hou MX, Tan CP, Mao ZW, Liu B. A Nuclear-Targeted AIE Photosensitizer for Enzyme Inhibition and Photosensitization in Cancer Cell Ablation. Angew Chem Int Ed Engl 2022; 61:e202114600. [PMID: 35132748 DOI: 10.1002/anie.202114600] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Indexed: 12/24/2022]
Abstract
The nucleus is considered the ideal target for anti-tumor therapy because DNA and some enzymes in the nucleus are the main causes of cell canceration and malignant proliferation. However, nuclear target drugs with good biosafety and high efficiency in cancer treatment are rare. Herein, a nuclear-targeted material MeTPAE with aggregation-induced emission (AIE) characteristics was developed based on a triphenylamine structure skeleton. MeTPAE can not only interact with histone deacetylases (HDACs) to inhibit cell proliferation but also damage telomere and nucleic acids precisely through photodynamic treatment (PDT). The cocktail strategy of MeTPAE caused obvious cell cycle arrest and showed excellent PDT anti-tumor activity, which offered new opportunities for the effective treatment of malignant tumors.
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Affiliation(s)
- Kang-Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Liu-Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Ming-Xuan Hou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, State Key Laboratory of Oncology in South China, Sun Yat-Sen University, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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7
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Wang K, Liu L, Mao D, Hou M, Tan C, Mao Z, Liu B. A Nuclear‐Targeted AIE Photosensitizer for Enzyme Inhibition and Photosensitization in Cancer Cell Ablation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Affiliation(s)
- Kang‐Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Liu‐Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Ming‐Xuan Hou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Cai‐Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Zong‐Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry State Key Laboratory of Oncology in South China Sun Yat-Sen University China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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Cheng J, Zhou Y, Xu S, Xie Y, Mao D, Wu W, Li Z. From main chain conjugated polymer photosensitizer to hyperbranched one: the expansion of polymerization-enhanced photosensitization effect for photodynamic therapy. J Mater Chem B 2022; 10:5008-5015. [DOI: 10.1039/d2tb00679k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three conjugated polymers with the same donor-acceptor structure but totally different architectures are design to show both Type-I and Type-II photosensitization abilities simultaneously, among which the hyperbranched polymer shows the...
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Niu W, Guo LY, Zhang JY, Ji T, Mao D, Li XF, Du XX. E2F1-induced upregulation of lncRNA HCG18 stimulates proliferation and migration in gastric cancer by binding to miR-197-3p. Eur Rev Med Pharmacol Sci 2021; 24:9949-9956. [PMID: 33090399 DOI: 10.26355/eurrev_202010_23207] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE LncRNA HCG18 is considered to be an oncogene in many types of tumors. The aim of this study was to explore the role of lncRNA HCG18 in gastric cancer (GC). PATIENTS AND METHODS HCG18 levels in GC tissues were detected. Potential biological influences of HCG18 on GC cell phenotypes were examined by Cell Counting Kit-8 (CCK-8), wound healing and transwell assay. Subsequently, bioinformatics analysis, Chromatin immunoprecipitation (ChIP), Luciferase assay and rescue experiments were conducted to identify the regulatory network of HCG18 in GC. RESULTS It was found that HCG18 was upregulated in GC samples, and the knockdown of HCG18 inhibited proliferative and migratory abilities in GC. The transcription factor E2F1 could directly bind to the promoter region of HCG18 and thus activate its transcription. In addition, HCG18 sponged miR-197-3p to stimulate the malignant development of GC. CONCLUSIONS HCG18 is upregulated in GC samples by E2F1 induction, which stimulates proliferative and migratory abilities in GC by binding to miR-197-3p.
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Affiliation(s)
- W Niu
- Department of Gastroenterology, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
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Wang K, Liu L, Mao D, Xu S, Tan C, Cao Q, Mao Z, Liu B. A Polarity‐Sensitive Ratiometric Fluorescence Probe for Monitoring Changes in Lipid Droplets and Nucleus during Ferroptosis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104163] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kang‐Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Liu‐Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Shidang Xu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Cai‐Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Zong‐Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of Chemistry Sun Yat-Sen University Guangzhou 510275 P. R. China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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11
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Wang KN, Liu LY, Mao D, Xu S, Tan CP, Cao Q, Mao ZW, Liu B. A Polarity-Sensitive Ratiometric Fluorescence Probe for Monitoring Changes in Lipid Droplets and Nucleus during Ferroptosis. Angew Chem Int Ed Engl 2021; 60:15095-15100. [PMID: 33835669 DOI: 10.1002/anie.202104163] [Citation(s) in RCA: 121] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Indexed: 01/08/2023]
Abstract
Ferroptosis regulates cell death through reactive oxygen species (ROS)-associated lipid peroxide accumulation, which is expected to affect the structure and polarity of lipid droplets (LDs), but with no clear evidence. Herein, we report the first example of an LD/nucleus dual-targeted ratiometric fluorescent probe, CQPP, for monitoring polarity changes in the cellular microenvironment. Due to the donor-acceptor structure of CQPP, it offers ratiometric fluorescence emission and fluorescence lifetime signals that reflect polarity variations. Using nucleus imaging as a reference, CQPP was applied to report the increase in LD polarity and the homogenization of polarity between LDs and cytoplasm in the ferroptosis model. This LD/nucleus dual-targeted fluorescent probe shows the great potential of using fluorescence imaging to study ferroptosis and ferroptosis-related diseases.
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Affiliation(s)
- Kang-Nan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Liu-Yi Liu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shidang Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Cai-Ping Tan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Qian Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Zong-Wan Mao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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12
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Perez-Siles G, Cutrupi A, Ellis M, Screnci R, Mao D, Uesugi M, Yiu EM, Ryan MM, Choi BO, Nicholson G, Kennerson ML. Energy metabolism and mitochondrial defects in X-linked Charcot-Marie-Tooth (CMTX6) iPSC-derived motor neurons with the p.R158H PDK3 mutation. Sci Rep 2020; 10:9262. [PMID: 32504000 PMCID: PMC7275085 DOI: 10.1038/s41598-020-66266-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/18/2020] [Indexed: 11/09/2022] Open
Abstract
Charcot-Marie-Tooth (CMT) is a group of inherited diseases clinically and genetically heterogenous, characterised by length dependent degeneration of axons of the peripheral nervous system. A missense mutation (p.R158H) in the pyruvate dehydrogenase kinase 3 gene (PDK3) has been identified as the genetic cause for an X-linked form of CMT (CMTX6) in two unrelated families. PDK3 is one of four PDK isoenzymes that regulate the activity of the pyruvate dehydrogenase complex (PDC). The balance between kinases (PDKs) and phosphatases (PDPs) determines the extend of oxidative decarboxylation of pyruvate to generate acetyl CoA, critically linking glycolysis and the energy producing Krebs cycle. We had shown the p.R158H mutation causes hyperactivity of PDK3 and CMTX6 fibroblasts show hyperphosphorylation of PDC, leading to reduced PDC activity and ATP production. In this manuscript we have generated induced pluripotent stem cells (iPSCs) by re-programming CMTX6 fibroblasts (iPSCCMTX6). We also have engineered an isogenic control (iPSCisogenic) and demonstrated that genetic correction of the p.R158H mutation reverses the CMTX6 phenotype. Patient-derived motor neurons (MNCMTX6) show increased phosphorylation of the PDC, energy metabolism defects and mitochondrial abnormalities, including reduced velocity of trafficking mitochondria in the affected axons. Treatment of the MNCMTX6 with a PDK inhibitor reverses PDC hyperphosphorylation and the associated functional deficits founds in the patient motor neurons, demonstrating that the MNCMTX6 and MNisogenic motor neurons provide an excellent neuronal system for compound screening approaches to identify drugs for the treatment of CMTX6.
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Affiliation(s)
- G Perez-Siles
- Northcott Neuroscience Laboratory, ANZAC Research Institute, Sydney, Australia. .,Sydney Medical School, University of Sydney, Sydney, Australia.
| | - A Cutrupi
- Northcott Neuroscience Laboratory, ANZAC Research Institute, Sydney, Australia.,Sydney Medical School, University of Sydney, Sydney, Australia
| | - M Ellis
- Northcott Neuroscience Laboratory, ANZAC Research Institute, Sydney, Australia
| | - R Screnci
- School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia
| | - D Mao
- Institute for Integrated Cell-Material Sciences and Institute for Chemical Research, Kyoto University, Kyoto, Japan
| | - M Uesugi
- Institute for Integrated Cell-Material Sciences and Institute for Chemical Research, Kyoto University, Kyoto, Japan
| | - Eppie M Yiu
- Department of Neurology, Royal Children's Hospital, Flemington Road, Parkville, VIC, Australia.,Neuroscience Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, VIC, Australia
| | - Monique M Ryan
- Department of Neurology, Royal Children's Hospital, Flemington Road, Parkville, VIC, Australia.,Neuroscience Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, VIC, Australia
| | - B O Choi
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - G Nicholson
- Northcott Neuroscience Laboratory, ANZAC Research Institute, Sydney, Australia.,Molecular Medicine Laboratory, Concord Repatriation General Hospital, Sydney, Australia
| | - M L Kennerson
- Northcott Neuroscience Laboratory, ANZAC Research Institute, Sydney, Australia. .,Sydney Medical School, University of Sydney, Sydney, Australia. .,Molecular Medicine Laboratory, Concord Repatriation General Hospital, Sydney, Australia.
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13
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Mao D, Hu F, Yi Z, Kenry K, Xu S, Yan S, Luo Z, Wu W, Wang Z, Kong D, Liu X, Liu B. AIEgen-coupled upconversion nanoparticles eradicate solid tumors through dual-mode ROS activation. Sci Adv 2020; 6:eabb2712. [PMID: 32637621 PMCID: PMC7319755 DOI: 10.1126/sciadv.abb2712] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/15/2020] [Indexed: 05/20/2023]
Abstract
Reactive oxygen species (ROS) are essential for the regulation of antitumor immune responses, where they could induce immunogenic cell death, promote antigen presentation, and activate immune cells. Here, we report the development of near-infrared (NIR)-driven immunostimulants, based on coupling upconversion nanoparticles with aggregation-induced emission luminogens (AIEgens), to integrate the immunological effects of ROS for enhanced adaptive antitumor immune responses. Intratumorally injected AIEgen-upconversion nanoparticles produce high-dose ROS under high-power NIR irradiation, which induces immunogenic cell death and antigen release. These nanoparticles can also capture the released antigens and deliver them to lymph nodes. Upon subsequent low-power NIR treatment of lymph nodes, low-dose ROS are generated to further trigger efficient T cell immune responses through activation of dendritic cells, preventing both local tumor recurrence and distant tumor growth. The utility of dual-mode pumping power on AIEgen-coupled upconversion nanoparticles offers a powerful and controllable platform to activate adaptive immune systems for tumor immunotherapy.
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Affiliation(s)
- Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Fang Hu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Zhigao Yi
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Kenry Kenry
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Shidang Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Shuangqian Yan
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Zichao Luo
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
| | - Zhihong Wang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Deling Kong
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Xiaogang Liu
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Fuzhou 350207, China
- The N.1 Institute for Health, National University of Singapore, Singapore 117456, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Fuzhou 350207, China
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14
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Wang Y, Liu X, Wu W, Mao D, Wang B, Tang G, Liu B. Mesoporous Rod‐Like Metal‐Organic Framework with Optimal Tumor Targeting Properties for Enhanced Activatable Photodynamic Therapy. Adv Therap 2020. [DOI: 10.1002/adtp.202000011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yuanbo Wang
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Xingang Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Bo Wang
- Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 P. R. China
| | - Guping Tang
- Department of Chemistry Zhejiang University Hangzhou 310028 P. R. China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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15
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Exertier P, Belli A, Samain E, Meng W, Zhang H, Tang K, Schlicht A, Schreiber U, Hugentobler U, Prochàzka I, Sun X, McGarry JF, Mao D, Neumann A. Time and laser ranging: a window of opportunity for geodesy, navigation and metrology. J Geod 2019; 93:2389-2404. [PMID: 33867691 PMCID: PMC8051204 DOI: 10.1007/s00190-018-1173-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/08/2018] [Indexed: 06/12/2023]
Abstract
Recent progress in the domain of time and frequency (T/F) standards requires important improvements of existing time distribution links. Among these, the accuracy of time transfer is actually an important part of the concerns in order to establish and maintain time & space references from ground and/or space facilities. Several time transfers by laser link projects have been carried out over the past 10 years with numerous scientific and metrological objectives. Satellite Laser ranging (SLR) has proven to be a fundamental tool, offering a straightforward, conceptually simple, highly accurate and unambiguous observable. Depending on the mission, LR is used to transmit time over two-way or one-way distances from 500 to several millions of km. The following missions and their objectives employed this technique: European Laser Timing (ELT) at 450 km, Time Transfer by Laser Link (T2L2) at 1,336 km, Laser Time Transfer (LTT) at 36,000 km, Lunar Reconnaissance Orbiter (LRO) at 350,000 km, and MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) at tens of million km. This article describes the synergy between SLR and T/F technologies developed on the ground and in space and as well as the state of the art of their exploitation. The performance and sources of limitation of such space missions are analyzed. It shows that current and future challenges lie in the improvement of the time accuracy and stability of the time for ground geodetic observatories. The role of the next generation of SLR systems is emphasized both in space and at ground level, from the point of view of GGOS and valuable exploitation of the synergy between time synchronization, ranging and data transfer.
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Affiliation(s)
| | - A Belli
- CNRS-OCA-UNS, Geoazur, France
- NASA Goddard Space Flight Center, USA
| | | | - W Meng
- Shanghai Astronomical Observatory, CAS, China
| | - H Zhang
- Shanghai Astronomical Observatory, CAS, China
| | - K Tang
- Shanghai Astronomical Observatory, CAS, China
| | | | | | | | | | - X Sun
- NASA Goddard Space Flight Center, USA
| | | | - D Mao
- NASA Goddard Space Flight Center, USA
| | - A Neumann
- NASA Goddard Space Flight Center, USA
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16
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XU L, Liu Y, Fan Z, Jiang Z, Liu Y, Ling R, Zhang J, Yu Z, Jin F, Wang C, Cui S, Wang S, Mao D, Xiang Q, Zhang Z, Zhou B, Liu Z, Ma C, Duan X, Cui Y. Assessment of CPS+EG, neo-bioscore and modified neo-bioscore in breast cancer patients treated with preoperative systemic therapy: A multicenter cohort study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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17
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Hu F, Qi G, Kenry, Mao D, Zhou S, Wu M, Wu W, Liu B. Visualization and In Situ Ablation of Intracellular Bacterial Pathogens through Metabolic Labeling. Angew Chem Int Ed Engl 2019; 59:9288-9292. [DOI: 10.1002/anie.201910187] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Fang Hu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Guobin Qi
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Kenry
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Shiwei Zhou
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Min Wu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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18
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Hu F, Qi G, Kenry, Mao D, Zhou S, Wu M, Wu W, Liu B. Visualization and In Situ Ablation of Intracellular Bacterial Pathogens through Metabolic Labeling. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910187] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Fang Hu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Guobin Qi
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Kenry
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Shiwei Zhou
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Min Wu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore 4 Engineering Drive 4 Singapore 117585 Singapore
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19
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Gao X, Mao D, Zuo X, Hu F, Cao J, Zhang P, Sun JZ, Liu J, Liu B, Tang BZ. Specific Targeting, Imaging, and Ablation of Tumor-Associated Macrophages by Theranostic Mannose-AIEgen Conjugates. Anal Chem 2019; 91:6836-6843. [PMID: 31009572 DOI: 10.1021/acs.analchem.9b01053] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Tumor-associated macrophages (TAMs) that exist in tumor microenvironment promote tumor progression and have been suggested as a promising therapeutic target for cancer therapy in preclinical studies. Development of theranostic systems capable of specific targeting, imaging, and ablation of TAMs will offer clinical benefits. Here we constructed a theranostic probe, namely, TPE-Man, by attaching mannose moieties to a red-emissive and AIE (aggregation-induced emission)-active photosensitizer. TPE-Man can specifically recognize a mannose receptor that is overexpressed on TAMs by the sugar-receptor interaction and enables fluorescent visualization of the mannose-receptor-positive TAMs in high contrast. The histologic study of mouse tumor sections further verifies TPE-Man's excellent targeting specificity being comparable with the commercial mannose-receptor antibody. TAMs can be effectively eradicated upon exposure to white light irradiation via a photodynamic therapy effect. To our knowledge, this is the first small molecular theranostic probe for TAMs that revealed combined advantages of low cost, high targeting specificity, fluorescent light-up imaging, and efficient photodynamic ablation.
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Affiliation(s)
- Xiaoying Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China.,Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore
| | - Xingang Zuo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China
| | - Fang Hu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore
| | - Jie Cao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China
| | - Peng Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China
| | - Jing Zhi Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China
| | - Jianzhao Liu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 , Singapore
| | - Ben Zhong Tang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering , Zhejiang University , Zheda Road 38 , Hangzhou 310027 , China.,Department of Chemistry, Division of Biomedical Engineering , The Hong Kong University of Science and Technology , Clear Water Bay, Kowloon, Hong Kong , China.,SCUT-HKUST Joint Research Laboratory, Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China
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20
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Mao D, Liu AH, Wang ZP, Zhang XW, Lu H. Cucurbitacin B inhibits cell proliferation and induces cell apoptosis in colorectal cancer by modulating methylation status of BTG3. Neoplasma 2019; 66:593-602. [PMID: 31058532 DOI: 10.4149/neo_2018_180929n729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 02/27/2019] [Indexed: 11/08/2022]
Abstract
A previous report has revealed that cucurbitacin B (CuB) inhibits cancer cell proliferation and tumorigenesis in non-small cell lung cancer (NSCLC) through epigenetic modifications of several genes. However, whether CuB regulates cell proliferation and apoptosis by altering methylation status of BTG3 in colorectal cancer (CRC) remains unknown. In the present study, the results showed that BTG3 was downregulated in CRC tissues compared with adjacent normal tissues. CuB significantly increased BTG3 levels, induced promoter demethylation, and decreased the levels of DNA methyltransferases (DNMT1, DNMT3a and DNMT3b) in both CRC cell lines (SW480 and Caco-2), and the effects of CuB were comparable with those of 5-Aza-dC. We also found that CuB inhibited cell proliferation, accompanied with decreased expression of Ki67. Furthermore, CuB treatment induced cell cycle arrest at G1 phase in SW480 and Caco-2 cells, as well as decreased levels of Cyclin D1 and Cyclin E1. Incubation with CuB promoted cell apoptosis in both CRC cell lines in vitro, accompanied with elevation of cleaved caspase-3 and cleaved PARP. BTG3 knockdown abolished the effects of CuB in CRC cells. In summary, CuB-induced proliferation inhibition and cell apoptosis may be due to the reactivation of BTG3 by promoter demethylation. CuB may be a promising agent for CRC therapy.
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Affiliation(s)
- D Mao
- Department of Colorectal Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - A H Liu
- Department of Colorectal Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Z P Wang
- Department of Colorectal Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - X W Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - H Lu
- Department of Colorectal Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
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21
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Shang Y, Zhi D, Feng G, Wang Z, Mao D, Guo S, Liu R, Liu L, Zhang S, Sun S, Wang K, Kong D, Gao J, Yang Z. Supramolecular Nanofibers with Superior Bioactivity to Insulin-Like Growth Factor-I. Nano Lett 2019; 19:1560-1569. [PMID: 30789273 DOI: 10.1021/acs.nanolett.8b04406] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Bioactive peptides derived from proteins generally need to be folded into secondary structures to activate downstream signaling pathways. However, synthetic peptides typically form random-coils, thus losing their bioactivities. Here, we show that by introducing a self-assembling peptide motif and using different preparation pathways, a peptide from insulin-like growth factor-I (IGF-1) can be folded into an α-helix and β-sheet. The β-sheet one exhibits a low dissociation constant to the IGF-1 receptor (IGF-1R, 11.5 nM), which is only about 3 times higher than that of IGF-1 (4.3 nM). However, the α-helical one and the peptide without self-assembling motif show weak affinities to IGF-1R ( KD = 179.1 and 321.6 nM, respectively). At 10 nM, the β-sheet one efficiently activates the IGF-1 downstream pathway, significantly enhancing HUVEC proliferation and preventing cell apoptosis. The β-sheet peptide shows superior performance to IGF-1 in vivo, and it improves ischemic hind-limb salvage by significantly reducing muscle degradation and enhancing limb vascularization. Our study provides a useful strategy to constrain peptides into different conformations, which may lead to the development of supramolecular nanomaterials mimicking biofunctional proteins.
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Affiliation(s)
- Yuna Shang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Dengke Zhi
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Guowei Feng
- Department of Genitourinary Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy , Tianjin's Clinical Research Center for Cancer , Tianjin 300060 , P. R. China
| | - Zhongyan Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering , National University of Singapore , Engineering Drive 4 , Singapore , 117585
| | - Shuang Guo
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Ruihua Liu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Lulu Liu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Shuhao Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Shenghuan Sun
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Jie Gao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
| | - Zhimou Yang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials , Nankai University , Tianjin 300071 , P. R. China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute , Xuzhou Medical University , Xuzhou , Jiangsu P. R. China
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Mao D, Qiao L, Lu H, Feng Y. B-cell translocation gene 3 overexpression inhibits proliferation and invasion of colorectal cancer SW480 cells via Wnt/β-catenin signaling pathway. Neoplasma 2019; 63:705-16. [PMID: 27468874 DOI: 10.4149/neo_2016_507] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Increasing evidences have shown that B-cell translocation gene 3 (BTG3) inhibits metastasis of multiple cancer cells. However, the role of BTG3 in colorectal cancer (CRC) and its possible mechanism have not yet been reported. In our study, we evaluated BTG3 expression in several CRC cell lines. Then, pcDNA3.1-BTG3 was transfected into SW480 cells. We found that BTG3 was upregulated in SW480 cells after overexpression plasmid transfection. BTG3 overexpression significantly inhibited cell growth and decreased PCNA (proliferating cell nuclear antigen) and Ki67 levels. BTG3 overexpression markedly downregulated Cyclin D1 and Cyclin E1 levels, whereas elevated p27. Overexpression of BTG3 arrested the cell cycle at G1 phase, which was abrogated by p27 silencing. Furthermore, migration, invasion and EMT of SW480 cells were significantly suppressed by BTG3 overexpression. Further investigations showed the inhibition of Wnt/β-catenin signaling pathway. We then used GSK3β specific inhibitor SB-216763 to activate the Wnt/β-catenin signaling pathway. We found that Wnt/β-catenin signaling pathway activation reversed the effect of BTG3 overexpression on cell proliferation, cell cycle progression, invasion and EMT. In conclusion, BTG3 overexpression inhibited cell growth, induced cell cycle arrest and suppressed the metastasis of SW480 cells via the Wnt/β-catenin signaling pathway. BTG3 may be considered as a therapeutic target in CRC treatment.
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Yang C, Ni X, Mao D, Ren C, Liu J, Gao Y, Ding D, Liu J. Seeing the fate and mechanism of stem cells in treatment of ionizing radiation-induced injury using highly near-infrared emissive AIE dots. Biomaterials 2019; 188:107-117. [DOI: 10.1016/j.biomaterials.2018.10.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/21/2018] [Accepted: 10/09/2018] [Indexed: 02/08/2023]
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Cai X, Mao D, Wang C, Kong D, Cheng X, Liu B. Multifunctional Liposome: A Bright AIEgen-Lipid Conjugate with Strong Photosensitization. Angew Chem Int Ed Engl 2018; 57:16396-16400. [DOI: 10.1002/anie.201809641] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/03/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Xiaolei Cai
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Can Wang
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology; Key Laboratory of Bioactive Materials; Ministry of Education and College of Life Sciences; Nankai University; Tianjin 300071 China
| | - Xiamin Cheng
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
- Institute of Advanced Synthesis; School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Centre for Advanced Materials; Nanjing Tech University; Nanjing 211816 China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
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25
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Duan Y, Xu Y, Mao D, Liew WH, Guo B, Wang S, Cai X, Thakor N, Yao K, Zhang CJ, Liu B. Photoacoustic and Magnetic Resonance Imaging Bimodal Contrast Agent Displaying Amplified Photoacoustic Signal. Small 2018; 14:e1800652. [PMID: 30247812 DOI: 10.1002/smll.201800652] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/02/2018] [Indexed: 06/08/2023]
Abstract
Progress in photoacoustic (PA) and magnetic resonance imaging (MRI) bimodal contrast agents has been achieved mainly by utilizing the imaging capability of single or multiple components and consequently realizing the desired application for both imaging modalities. However, the mechanism of the mutual influence between components within a single nanoformulation, which is the key to developing high-performance multimodal contrast agents, has yet to be fully understood. Herein, by integrating conjugated polymers (CPs) with iron oxide (IO) nanoparticles using an amphiphilic polymer, a bimodal contrast agent named CP-IO is developed, displaying 45% amplified PA signal intensity as compared to bare CP nanoparticle, while the performance of MRI is not affected. Further experimental and theoretical simulation results reveal that the addition of IO nanoparticles in CP-IO nanocomposites contributes to this PA signal amplification through a synergistic effect of additional heat generation and faster heat dissipation. Besides, the feasibility of CP-IO nanocomposites acting as PA-MRI bimodal contrast agents is validated through in vivo tumor imaging using mice models. From this study, it is demonstrated that a delicately designed structural arrangement of various components in a contrast agent could potentially lead to a superior performance in the imaging capability.
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Affiliation(s)
- Yukun Duan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Yu Xu
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456, Singapore
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, Singapore, 117575, Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Weng Heng Liew
- Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
| | - Bing Guo
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shaowei Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xiaolei Cai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Nitish Thakor
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456, Singapore
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, Singapore, 117575, Singapore
| | - Kui Yao
- Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
| | - Chong-Jing Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 1 Xian Nong Tan Street, Beijing, 100050, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, #05-COR, Singapore, 117456, Singapore
- Institute of Materials Research and Engineering (IMRE) A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, Singapore, 138634, Singapore
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Barker MK, Sun X, Mao D, Mazarico E, Neumann GA, Zuber MT, Smith DE, McGarry JF, Hoffman ED. In-flight characterization of the lunar orbiter laser altimeter instrument pointing and far-field pattern. Appl Opt 2018; 57:7702-7713. [PMID: 30462032 DOI: 10.1364/ao.57.007702] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/05/2018] [Indexed: 06/09/2023]
Abstract
The Lunar Orbiter Laser Altimeter (LOLA) aboard the Lunar Reconnaissance Orbiter (LRO) has collected nearly seven billion measurements of surface height on the Moon with an absolute accuracy of ∼1 m and a precision of ∼10 cm. Converting time-of-flight laser altimeter measurements to topographic elevations requires accurate knowledge of the laser pointing with respect to the spacecraft body-fixed coordinate system. To that end, we have utilized altimetric crossovers from LOLA, as well as bidirectional observations of the LOLA laser and receiver boresight via an Earth-based laser tracking ground station. Based on a sample of ∼780,000 globally distributed crossovers from the circular-orbit phase of LRO's mission (∼27 months), we derive corrections to the LOLA laser boresight. These corrections improve the cross-track and along-track agreement of the crossovers by 24% and 33%, respectively, yielding RMS residuals of ∼10 m. Since early in the LRO mission, the bidirectional laser tracking experiments have confirmed a pointing anomaly when the LOLA instrument is facing toward deep space or the night side of the Moon and have allowed the reconstruction of the laser far-field pattern and receiver telescope pointing. By conducting such experiments shortly after launch and nearly eight years later, we have directly measured changes in the laser characteristics and obtained critical data to understand the laser behavior and refine the instrument pointing model. The methods and results presented here are also relevant to the design, fabrication, and operation of future planetary laser altimeters and their long-term behavior in the space environment.
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Hu F, Mao D, Kenry, Cai X, Wu W, Kong D, Liu B. A Light-Up Probe with Aggregation-Induced Emission for Real-Time Bio-orthogonal Tumor Labeling and Image-Guided Photodynamic Therapy. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805446] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Fang Hu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Kenry
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Xiaolei Cai
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology; Key Laboratory of Bioactive Materials; Ministry of Education and College of Life Sciences; Nankai University; Tianjin 300071 China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
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Hu F, Mao D, Kenry, Cai X, Wu W, Kong D, Liu B. A Light-Up Probe with Aggregation-Induced Emission for Real-Time Bio-orthogonal Tumor Labeling and Image-Guided Photodynamic Therapy. Angew Chem Int Ed Engl 2018; 57:10182-10186. [DOI: 10.1002/anie.201805446] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 06/11/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Fang Hu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Kenry
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Xiaolei Cai
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology; Key Laboratory of Bioactive Materials; Ministry of Education and College of Life Sciences; Nankai University; Tianjin 300071 China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering; National University of Singapore; 4 Engineering Drive 4 117585 Singapore Singapore
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Mao D, Hu F, Ji S, Wu W, Ding D, Kong D, Liu B. Metal-Organic-Framework-Assisted In Vivo Bacterial Metabolic Labeling and Precise Antibacterial Therapy. Adv Mater 2018; 30:e1706831. [PMID: 29504163 DOI: 10.1002/adma.201706831] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/22/2017] [Indexed: 05/19/2023]
Abstract
Bacterial infection is one of the most serious physiological conditions threatening human health. There is an increasing demand for more effective bacterial diagnosis and treatment through noninvasive theranostic approaches. Herein, a new strategy is reported to achieve in vivo metabolic labeling of bacteria through the use of MIL-100 (Fe) nanoparticles (NPs) as the nanocarrier for precise delivery of 3-azido-d-alanine (d-AzAla). After intravenous injection, MIL-100 (Fe) NPs can accumulate preferentially and degrade rapidly within the high H2 O2 inflammatory environment, releasing d-AzAla in the process. d-AzAla is selectively integrated into the cell walls of bacteria, which is confirmed by fluorescence signals from clickable DBCO-Cy5. Ultrasmall photosensitizer NPs with aggregation-induced emission characteristics are subsequently designed to react with the modified bacteria through in vivo click chemistry. Through photodynamic therapy, the amount of bacteria on the infected tissue can be significantly reduced. Overall, this study demonstrates the advantages of metal-organic-framework-assisted bacteria metabolic labeling strategy for precise bacterial detection and therapy guided by fluorescence imaging.
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Affiliation(s)
- Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Fang Hu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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Hu F, Yuan Y, Wu W, Mao D, Liu B. Dual-Responsive Metabolic Precursor and Light-Up AIEgen for Cancer Cell Bio-orthogonal Labeling and Precise Ablation. Anal Chem 2018; 90:6718-6724. [DOI: 10.1021/acs.analchem.8b00547] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Fang Hu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
| | - Youyong Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
- Nanotheranostics Laboratory, School of Medicine, Institutes for Life Sciences, South China University of Technology, Guangzhou, China 510006
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585
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Feng G, Mao D, Liu J, Goh CC, Ng LG, Kong D, Tang BZ, Liu B. Polymeric nanorods with aggregation-induced emission characteristics for enhanced cancer targeting and imaging. Nanoscale 2018; 10:5869-5874. [PMID: 29560485 DOI: 10.1039/c7nr09196f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymeric nanorods loaded with AIEgens are synthesized via nano-precipitation under ultrasound sonication, where prolonged sonication time could induce a nanodot-to-nanorod transition. These AIE nanorods, but not the nanodots, could be selectively internalized into cancer cells, which show better tumor accumulation, higher tumor penetration and more efficient in vivo cancer cell uptake.
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Affiliation(s)
- Guangxue Feng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Jie Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Chi Ching Goh
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, 138648, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, 138648, Singapore
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials. Ministry of Education and College of Life Sciences, Nankai University, China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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Wang X, Zhang J, Cui W, Fang Y, Li L, Ji S, Mao D, Ke T, Yao X, Ding D, Feng G, Kong D. Composite Hydrogel Modified by IGF-1C Domain Improves Stem Cell Therapy for Limb Ischemia. ACS Appl Mater Interfaces 2018; 10:4481-4493. [PMID: 29327586 DOI: 10.1021/acsami.7b17533] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Stem cell treatment for critical limb ischemia yields a limited therapeutic effect due to cell loss and dysfunction caused by local ischemic environment. Biomimetic scaffolds emerge as ideal cell delivery vehicles for regulating cell fate via mimicking the components of stem cell niche. Herein, we prepared a bioactive hydrogel by mixing chitosan and hyaluronic acid that is immobilized with C domain peptide of insulin-like growth factor 1 (IGF-1C) and examined whether this hydrogel could augment stem cell survival and therapeutic potential. Our results showed that IGF-1C-modified hydrogel increased in vitro viability and proangiogenic activity of adipose-derived stromal cells (ADSCs). Moreover, cotransplantation of hydrogel and ADSCs into ischemic hind limbs of mice effectively ameliorated blood perfusion and muscle regeneration, leading to superior limb salvage. These therapeutic effects can be ascribed to improved ADSC retention, angiopoientin-1 secretion, and neovascularization, as well as reduced inflammatory cell infiltration. Additionally, hydrogel enhanced antifibrotic activity of ADSCs, as evidenced by decreased collagen accumulation at late stage. Together, our findings indicate that composite hydrogel modified by IGF-1C could promote survival and proangiogenic capacity of ADSCs and thereby represents a feasible option for cell-based treatment for critical limb ischemia.
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Affiliation(s)
- Xiaomin Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Jimin Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Weilong Cui
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Yuan Fang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Li Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University , Kunming 650101, Yunnan, China
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Tingyu Ke
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University , Kunming 650101, Yunnan, China
| | - Xin Yao
- Department of Genitourinary Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer , Tianjin 300060, China
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
| | - Guowei Feng
- Department of Genitourinary Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer , Tianjin 300060, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University , Tianjin 300071, China
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Hu F, Yuan Y, Mao D, Wu W, Liu B. Smart activatable and traceable dual-prodrug for image-guided combination photodynamic and chemo-therapy. Biomaterials 2017; 144:53-59. [DOI: 10.1016/j.biomaterials.2017.08.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 08/13/2017] [Accepted: 08/14/2017] [Indexed: 01/19/2023]
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Han GJ, Hu H, Mao D, Bai X, She DY, Zhao SF, Wen ZL, Gao J. [IgG4-related lung disease: analysis of 8 cases and literature review]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:193-198. [PMID: 28297814 DOI: 10.3760/cma.j.issn.1001-0939.2017.03.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To improve the understanding and treatment of IgG4-related lung disease (IgG4-RLD). Methods: The clinical characteristics, serum IgG4 levels, pathological features, chest CT, therapy and prognosis of 8 patients with IgG4-RLD were retrospectively analyzed. These patients were admitted to the People's Liberation Army General Hospital and the pathological diagnosis was made between December 2005 and March 2016. Relevant literatures were reviewed. Results: The 8 patients with IgG4-RLD included 4 men and 4 women, with an average age of (59±4) years (range, 37-74). The respiratory symptoms included shortness of breath, cough, and expectoration. Extra-pulmonary symptoms included abdominal pain, facial edema, and fever. Extrapulmonary organs were involved in 7 cases. Serum IgG4 levels were elevated in 8 cases, with an average concentration of(17±6)g/L. Chest CT showed solid lung nodules in 6, alveolar-interstitial infiltration in 5, bronchovascular lesions in 3 and ground glass shadows in 2 cases. PET/CT was performed in 2 cases and it showed multiple organ involvement with higher radioactivity uptake(SUVmax2.9-4.2). The pathological examination found lymphocyte and plasma cell infiltration in 7, fibrous tissue hyperplasia in 5, and occlusive vasculitis in 2 cases. On immunohistochemical staining, the ratio of IgG4-positive plasma cells to IgG-positive plasma cells was higher than 40%in 3 cases. The number of IgG4-positive plasma cells was 10-50/HP in 8 cases. The misdiagnosis rate was 100% before the final diagnosis was made. Three cases received glucocorticoids with immunosuppressant therapy, 2 received surgery combined with glucocorticoid therapy, 2 received glucocorticoid therapy alone, and 1 only received surgery. The follow-up time was 4-132 months, with remission in 7 cases, and disease progression in 1 case, but no death. A total of 195 cases of IgG4-RLD were reviewed from the literature, among whom 111 cases were admitted with respiratory symptoms, 144 with extra-pulmonary involvement. Serum IgG4 levels were detected in 179 cases, with an average concentration of 5.408 g/L. The nodular type was predominant, accounting for 36.9%. Of these cases, 178 received glucocorticoid treatment with disease remission. Conclusions: The major clinical manifestations of IgG4-RLD were shortness of breath, cough and expectoration. Multiple organ lesions were common. The misdiagnosis rate was extremely high. The diagnosis could be made based on pathological features and IgG4 serum levels . Glucocorticoid treatment was effective.
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Affiliation(s)
- G J Han
- Respiratory Department of People's Liberation Army General Hospital, Beijing 100853, China
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Wu W, Mao D, Hu F, Xu S, Chen C, Zhang CJ, Cheng X, Yuan Y, Ding D, Kong D, Liu B. A Highly Efficient and Photostable Photosensitizer with Near-Infrared Aggregation-Induced Emission for Image-Guided Photodynamic Anticancer Therapy. Adv Mater 2017; 29:1700548. [PMID: 28671732 DOI: 10.1002/adma.201700548] [Citation(s) in RCA: 281] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/05/2017] [Indexed: 05/21/2023]
Abstract
Photodynamic therapy (PDT), which relies on photosensitizers (PS) and light to generate reactive oxygen species to kill cancer cells or bacteria, has attracted much attention in recent years. PSs with both bright emission and efficient singlet oxygen generation have also been used for image-guided PDT. However, simultaneously achieving effective 1 O2 generation, long wavelength absorption, and stable near-infrared (NIR) emission with low dark toxicity in a single PS remains challenging. In addition, it is well known that when traditional PSs are made into nanoparticles, they encounter quenched fluorescence and reduced 1 O2 production. In this contribution, these challenging issues have been successfully addressed through designing the first photostable photosensitizer with aggregation-induced NIR emission and very effective 1 O2 generation in aggregate state. The yielded nanoparticles show very effective 1 O2 generation, bright NIR fluorescence centered at 820 nm, excellent photostability, good biocompatibility, and negligible dark in vivo toxicity. Both in vitro and in vivo experiments prove that the nanoparticles are excellent candidates for image-guided photodynamic anticancer therapy.
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Affiliation(s)
- Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574, Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Fang Hu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shidang Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Chao Chen
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Chong-Jing Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xiamin Cheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Youyong Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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Feng G, Liu J, Liu R, Mao D, Tomczak N, Liu B. Ultrasmall Conjugated Polymer Nanoparticles with High Specificity for Targeted Cancer Cell Imaging. Adv Sci (Weinh) 2017; 4:1600407. [PMID: 28932655 PMCID: PMC5604381 DOI: 10.1002/advs.201600407] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/21/2016] [Indexed: 05/14/2023]
Abstract
Fluorescent and biocompatible organic nanoparticles have attracted great interest in cancer detection and imaging, but the nonspecific cellular uptake has limited the detection specificity and sensitivity. Herein, the authors report the ultrasmall conjugated polymer nanoparticles (CPNs) with bright far-red/near-infrared emission for targeted cancer imaging with high specificity. The sizes of the ultrasmall CPNs are around 6 nm (CPN6), while large CPNs show sizes around 30 nm (CPN30). Moreover, CPN6 exhibits largely improved fluorescence quantum yield (η) of 41% than CPN30 (25%). Benefiting from the ultrasmall size, bare CPN6 shows largely suppressed nonspecific cellular uptake as compared to CPN30, while cyclic arginine-glycine-aspartic acid (cRGD) functionalized CPN6 (cRGD-CPN6) possesses excellent selectivity toward αvβ3 integrin overexpressed MDA-MB-231 cells over other cells in cell mixtures. The faster body clearance of CPN6 over CPN30 indicates its greater potentials as a noninvasive nanoprobe for in vivo and practical applications.
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Affiliation(s)
- Guangxue Feng
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
| | - Jie Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
| | - Rongrong Liu
- Institute of Materials Research and Engineering (IMRE)2 Fusionopolis WayInnovis136834Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
| | - Nikodem Tomczak
- Institute of Materials Research and Engineering (IMRE)2 Fusionopolis WayInnovis136834Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular EngineeringNational University of Singapore4 Engineering Drive 4117585Singapore
- Institute of Materials Research and Engineering (IMRE)2 Fusionopolis WayInnovis136834Singapore
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Wu W, Mao D, Hu F, Xu S, Chen C, Zhang CJ, Cheng X, Yuan Y, Ding D, Kong D, Liu B. A Highly Efficient and Photostable Photosensitizer with Near-Infrared Aggregation-Induced Emission for Image-Guided Photodynamic Anticancer Therapy. Adv Mater 2017; 29:1110-1114. [PMID: 28671732 DOI: 10.1039/c7mh00469a] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 05/05/2017] [Indexed: 05/23/2023]
Abstract
Photodynamic therapy (PDT), which relies on photosensitizers (PS) and light to generate reactive oxygen species to kill cancer cells or bacteria, has attracted much attention in recent years. PSs with both bright emission and efficient singlet oxygen generation have also been used for image-guided PDT. However, simultaneously achieving effective 1 O2 generation, long wavelength absorption, and stable near-infrared (NIR) emission with low dark toxicity in a single PS remains challenging. In addition, it is well known that when traditional PSs are made into nanoparticles, they encounter quenched fluorescence and reduced 1 O2 production. In this contribution, these challenging issues have been successfully addressed through designing the first photostable photosensitizer with aggregation-induced NIR emission and very effective 1 O2 generation in aggregate state. The yielded nanoparticles show very effective 1 O2 generation, bright NIR fluorescence centered at 820 nm, excellent photostability, good biocompatibility, and negligible dark in vivo toxicity. Both in vitro and in vivo experiments prove that the nanoparticles are excellent candidates for image-guided photodynamic anticancer therapy.
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Affiliation(s)
- Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Department of Materials Science and Engineering, National University of Singapore, 7 Engineering Drive 1, Singapore, 117574, Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Fang Hu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Shidang Xu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Chao Chen
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Chong-Jing Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Xiamin Cheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Youyong Yuan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
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Mao D, Zhu M, Zhang X, Ma R, Yang X, Ke T, Wang L, Li Z, Kong D, Li C. A macroporous heparin-releasing silk fibroin scaffold improves islet transplantation outcome by promoting islet revascularisation and survival. Acta Biomater 2017; 59:210-220. [PMID: 28666883 DOI: 10.1016/j.actbio.2017.06.039] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 06/21/2017] [Accepted: 06/26/2017] [Indexed: 12/16/2022]
Abstract
Islet transplantation is considered the most promising therapeutic option with the potential to cure diabetes. However, efficacy of current clinical islet transplantation is limited by long-term graft dysfunction and attrition. We have investigated the therapeutic potential of a silk fibroin macroporous (SF) scaffold for syngeneic islet transplantation in diabetic mice. The SF scaffold was prepared via lyophilisation, which enables incorporation of active compounds including cytokines, peptide and growth factors without compromising their biological activity. For the present study, a heparin-releasing SF scaffold (H-SF) in order to evaluate the versatility of the SF scaffold for biological functionalisation. Islets were then co-transplanted with H-SF or SF scaffolds in the epididymal fat pad of diabetic mice. Mice from both H-SF and SF groups achieved 100% euglycaemia, which was maintained for 1year. More importantly, the H-SF-islets co-transplantation led to more rapid reversal of hyperglycaemia, complete normalisation of glucose responsiveness and lower long-term blood glucose levels. This superior transplantation outcome is attributable to H-SF-facilitated islet revascularisation and cell proliferation since significant increase of islet endocrine and endothelial cells proliferation was shown in grafts retrieved from H-SF-islets co-transplanted mice. Better intra-islet vascular reformation was also evident, accompanied by VEGF upregulation. In addition, when H-SF was co-transplanted with islets extracted from vegfr2-luc transgenic mice in vivo, sustained elevation of bioluminescent signal that corresponds to vegfr2 expression was collected, implicating a role of heparin-dependent activation of endogenous VEGF/VEGFR2 pathway in promoting islet revascularisation and proliferation. In summary, the SF scaffolds provide an open platform as scaffold development for islet transplantation. Furthermore, given the pro-angiogenic, pro-survival and minimal post-transplantation inflammatory reactions of H-SF, our data also support the feasibility of clinical implementation of H-SF to improve islet transplantation outcome. STATEMENT OF SIGNIFICANCE 1) The silk fibroin scaffold presented in the present study provides an open platform for scaffold development in islet transplantation, with heparinisation as an example. 2) Both heparin and silk fibroin have been used clinically. The excellent in vivo therapeutic outcome reported here may therefore be clinically relevant and provide valuable insights for bench to bed translation. 3) Compared to conventional clinical islet transplantation, during which islets are injected via the hepatic portal vein, the physical/mechanical properties of silk fibroin scaffolds create a more accessible transplantation site (i.e., within fat pad), which significantly reduces discomfort. 4) Islet implantation into the fat pad also avoids an instant blood mediated inflammatory response, which occurs upon contact of islet with recipient's blood during intraportal injection, and prolongs survival and function of implanted islets.
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Affiliation(s)
- Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Meifeng Zhu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Xiuyuan Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300192, China
| | - Rong Ma
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University, Kunming 650101, Yunnan, China
| | - Xiaoqing Yang
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University, Kunming 650101, Yunnan, China
| | - Tingyu Ke
- Department of Endocrinology, The Second Affiliated Hospital, Kunming Medical University, Kunming 650101, Yunnan, China
| | - Lianyong Wang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China
| | - Zongjin Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China; School of Medicine, Nankai University, Tianjin 300071, China.
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), College of Life Science, Nankai University, Tianjin 300071, China; Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300192, China
| | - Chen Li
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300192, China.
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Mao D, Liu J, Ji S, Wang T, Hu Y, Zheng D, Yang R, Kong D, Ding D. Amplification of near-infrared fluorescence in semiconducting polymer nanoprobe for grasping the behaviors of systemically administered endothelial cells in ischemia treatment. Biomaterials 2017; 143:109-119. [PMID: 28783593 DOI: 10.1016/j.biomaterials.2017.07.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 07/12/2017] [Accepted: 07/30/2017] [Indexed: 01/15/2023]
Abstract
To date, there have been few studies on using fluorescent cell trackers for non-invasively monitoring the in vivo fate of systemically administered cells. This is because only a relatively small number of cells can reach the disease site post systemic infusion, and thus achieving ideal in vivo cell tracking requires that the fluorescent cell trackers should hold combined merits of ultrahigh near-infrared (NIR) fluorescence, negligible interference on cell behavior and function, excellent retention within cells, as well as accurate long-term cell tracking ability. To address this challenge, we herein developed a highly NIR fluorescent nanoprobe (SPN) based on semiconducting π-conjugated polymers (SPs), by synthesis of a NIR SP-emitter, employment of fluorescence resonance energy transfer (FRET) strategy, and optimization of different FRET donor SPs. Due to the 53.7-fold intra-particle amplification of NIR fluorescence, the SPN could track as few as 2000 endothelial cells (ECs) upon intra-arterial injection into critical limb ischemia (CLI)-bearing mice, showing much higher sensitivity in ECs tracking compared with the most popular commercial cell trackers. What's more, the SPN could provide precise information on the behaviors of systemically injected ECs in CLI treatment including the in vivo fate and regenerative contribution of ECs for at least 21 days.
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Affiliation(s)
- Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jie Liu
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Ting Wang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yu Hu
- Department of Nephrology, Huai'an Hospital Affiliated to Xuzhou Medical College and Huai'an Second Hospital, Huai'an 223002, China
| | - Donghui Zheng
- Department of Nephrology, Huai'an Hospital Affiliated to Xuzhou Medical College and Huai'an Second Hospital, Huai'an 223002, China.
| | - Renqiang Yang
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin 300071, China.
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin 300071, China.
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Li Z, Liao H, Tan Z, Mao D, Wu Y, Xiao YM, Yang SK, Zhong L. Micropapillary bladder cancer: a clinico-pathological characterization and treatment analysis. Clin Transl Oncol 2017; 19:1217-1224. [DOI: 10.1007/s12094-017-1658-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 03/29/2017] [Indexed: 11/29/2022]
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Yuan Y, Zhang CJ, Kwok RTK, Mao D, Tang BZ, Liu B. Light-up probe based on AIEgens: dual signal turn-on for caspase cascade activation monitoring. Chem Sci 2017; 8:2723-2728. [PMID: 28553507 PMCID: PMC5426343 DOI: 10.1039/c6sc04322d] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 01/06/2017] [Indexed: 11/21/2022] Open
Abstract
Direct monitoring of multiple enzyme activities in a given biological process is extremely important for disease diagnosis.
Direct monitoring of multiple enzyme activities in a given biological process is extremely important for disease diagnosis. Herein, we report a single fluorescent probe that targets two caspase activities in living cells. The probe consists of three parts that includes two AIE fluorogens with distinctive green and red emission colors excitable at a single wavelength, and a hydrophilic peptide as the substrate of the apoptosis initiator caspase-8 and the effector caspase-3. The probe is non-fluorescent in aqueous media. The green and red fluorescence can be sequentially turned on when the peptide substrate is cleaved by the cascade activation of caspase-8 and caspase-3 in early apoptotic HeLa cells induced by hydrogen peroxide. This sequential fluorescence turn-on allows real-time monitoring of the caspase cascade activation during the apoptotic process, which was further explored for evaluating the therapeutic efficiency of anticancer drugs. The probe design strategy developed in this study also proved to be general, which opens a new avenue for real-time, multiplexed imaging of cellular enzyme activity in a biological process.
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Affiliation(s)
- Youyong Yuan
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 .
| | - Chong-Jing Zhang
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 .
| | - Ryan T K Kwok
- Department of Chemistry , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , Hong Kong , China
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 .
| | - Ben Zhong Tang
- Department of Chemistry , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , Hong Kong , China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 4 Engineering Drive 4 , Singapore 117585 . .,Institute of Materials Research and Engineering , Agency for Science , Technology and Research (ASTAR) , 3 Research Link , Singapore 117602
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44
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Fateminia SMA, Wang Z, Goh CC, Manghnani PN, Wu W, Mao D, Ng LG, Zhao Z, Tang BZ, Liu B. Nanocrystallization: A Unique Approach to Yield Bright Organic Nanocrystals for Biological Applications. Adv Mater 2017; 29:1604100. [PMID: 27805762 DOI: 10.1002/adma.201604100] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/18/2016] [Indexed: 06/06/2023]
Abstract
A new bottom-up nanocrystallization method is developed to fabricate highly fluorescent organic nanocrystals in aqueous media using an aggregation-induced emission fluorogen (AIEgen) as an example. The nanocrystallization strategy leads to the fabrication of uniform nanocrystals of 110 ± 10 nm size in aqueous media, which shows over 400% increase in brightness as compared to the amorphous nanoaggregates.
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Affiliation(s)
- S M Ali Fateminia
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, 117585, Singapore
| | - Zhiming Wang
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Chi Ching Goh
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, 138648, Singapore
| | - Purnima N Manghnani
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, 117585, Singapore
| | - Wenbo Wu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, 117585, Singapore
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, 117585, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Biopolis, 138648, Singapore
| | - Zujin Zhao
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
| | - Ben Zhong Tang
- State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, 117585, Singapore
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, 138634, Singapore
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45
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Cai X, Bandla A, Mao D, Feng G, Qin W, Liao LD, Thakor N, Tang BZ, Liu B. Biocompatible Red Fluorescent Organic Nanoparticles with Tunable Size and Aggregation-Induced Emission for Evaluation of Blood-Brain Barrier Damage. Adv Mater 2016; 28:8760-8765. [PMID: 27511643 DOI: 10.1002/adma.201601191] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/14/2016] [Indexed: 06/06/2023]
Abstract
Detection of damage to the blood-brain barrier (BBB) is important for the diagnosis of brain diseases and therapeutic drug evaluation. The widely used probe, Evans blue, suffers from low specificity and high toxicity in vivo. It is shown that organic nanoparticles with tuneable size, good biocompatibility, and aggregation-induced emission characteristics offer high detection specificity to detect BBB damage via a photothrombotic ischemia rat model.
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Affiliation(s)
- Xiaolei Cai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, 28 Medical Drive, #05-01, Singapore, 117456
| | - Aishwarya Bandla
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, Singapore, 117456
- Department of Biomedical Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore, 119077
| | - Duo Mao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585
| | - Guangxue Feng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585
| | - Wei Qin
- Department of Chemistry and Division of Biomedical Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077
| | - Lun-De Liao
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, Singapore, 117456.
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County, 35053, Taiwan.
| | - Nitish Thakor
- Singapore Institute for Neurotechnology (SINAPSE), National University of Singapore, 28 Medical Drive, Singapore, 117456
- Department of Biomedical Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore, 119077
| | - Ben Zhong Tang
- Department of Chemistry and Division of Biomedical Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, 999077
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585.
- Institute of Materials Research and Engineering, 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634.
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Song Z, Mao D, Sung SHP, Kwok RTK, Lam JWY, Kong D, Ding D, Tang BZ. Activatable Fluorescent Nanoprobe with Aggregation-Induced Emission Characteristics for Selective In Vivo Imaging of Elevated Peroxynitrite Generation. Adv Mater 2016; 28:7249-56. [PMID: 27302869 DOI: 10.1002/adma.201601214] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/20/2016] [Indexed: 05/05/2023]
Abstract
An activatable fluorescent nanoprobe with aggregation-induced emission signature is developed. The nanoprobe is nonfluorescent, but can be induced to emit intensely after reaction with peroxynitrite forming an intramolecular hydrogen bond. Excellent performance for selective in vivo imaging of inflammation with elevated peroxynitrite generation and efficient visualization of in vivo treatment efficacy of anti-inflammatory agents is demonstrated.
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Affiliation(s)
- Zhegang Song
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Biomedical Engineering, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Simon H P Sung
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Biomedical Engineering, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Ryan T K Kwok
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Biomedical Engineering, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W Y Lam
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Biomedical Engineering, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education and College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Division of Biomedical Engineering, The Hong Kong University of Science & Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong, China
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Peng D, Du Y, Shi Y, Mao D, Jia X, Li H, Zhu Y, Wang K, Tian J. Precise diagnosis in different scenarios using photoacoustic and fluorescence imaging with dual-modality nanoparticles. Nanoscale 2016; 8:14480-14488. [PMID: 27406825 DOI: 10.1039/c6nr03809c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Photoacoustic imaging and fluorescence molecular imaging are emerging as important research tools for biomedical studies. Photoacoustic imaging offers both strong optical absorption contrast and high ultrasonic resolution, and fluorescence molecular imaging provides excellent superficial resolution, high sensitivity, high throughput, and the ability for real-time imaging. Therefore, combining the imaging information of both modalities can provide comprehensive in vivo physiological and pathological information. However, currently there are limited probes available that can realize both fluorescence and photoacoustic imaging, and advanced biomedical applications for applying this dual-modality imaging approach remain underexplored. In this study, we developed a dual-modality photoacoustic-fluorescence imaging nanoprobe, ICG-loaded Au@SiO2, which was uniquely designed, consisting of gold nanorod cores and indocyanine green with silica shell spacer layers to overcome fluorophore quenching. This nanoprobe was examined by both PAI and FMI for in vivo imaging on tumor and ischemia mouse models. Our results demonstrated that the nanoparticles can specifically accumulate at the tumor and ischemic areas and be detected by both imaging modalities. Moreover, this dual-modality imaging strategy exhibited superior advantages for a precise diagnosis in different scenarios. The new nanoprobe with the dual-modality imaging approach holds great potential for diagnosis and stage classification of tumor and ischemia related diseases.
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Affiliation(s)
- Dong Peng
- Engineering Research Center of Molecular and Neuro Imaging of the Ministry of Education & School of Life Science and Technology, Xidian University, Xi'an, 710071, China.
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Jia XH, Du Y, Mao D, Wang ZL, He ZQ, Qiu JD, Ma XB, Shang WT, Ding D, Tian J. Zoledronic acid prevents the tumor-promoting effects of mesenchymal stem cells via MCP-1 dependent recruitment of macrophages. Oncotarget 2016; 6:26018-28. [PMID: 26305552 PMCID: PMC4694882 DOI: 10.18632/oncotarget.4658] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 07/23/2015] [Indexed: 01/17/2023] Open
Abstract
Zoledronic acid (ZA) has been tested in clinical trials as an additive therapy for early-stage breast cancer. However, the mechanism by which ZA exerts its antitumor activity is still unclear. The aim of this study is to investigate whether the prevention of tumor growth by ZA is through regulating the mesenchymal stem cells (MSC)-monocyte chemotactic protein 1 (MCP-1)-macrophages axis in the tumor microenvironment. To address this issue, MDA-MB-231-FLUC human breast cancer cells were cultured and injected either alone, or coupled with MSC into the mammary fat pads of nude mice. MSC were treated with either ZA or untreated. Tumor growth was determined by using an in vivo bioluminescence imaging (BLI) and the tumor-associated macrophages (TAMs) in tumor tissues were immunohistochemically analyzed by using CD206 antibody. The effects of ZA on the cytokine related gene expression of MSC were assessed by using real-time PCR. In this study, we found that ZA-treated mice showed a significant delay in tumor growth. In addition, our data revealed that ZA weakened the ability of MSC to promote tumor growth by impairing TAMs recruitment and tumor vascularization. Furthermore, it was found that ZA decreased MCP-1 expression of MSC, and therefore reduced the recruitment of TAMs to the tumor sites and hence inhibited the tumor growth. Altogether, our study demonstrated ZA can prevent the tumor-promoting effects of MSC. The antitumor effects of ZA were caused by decreasing the MCP-1 expression of MSC, which further decreased the infiltration of TAMs into tumor sites, and therefore inhibited the tumor growth.
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Affiliation(s)
- Xiao-Hua Jia
- Key Laboratory of Molecular Imaging of the Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Yang Du
- Key Laboratory of Molecular Imaging of the Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Zhong-Liang Wang
- School of Life Science and Technology, Xidian University, Shaanxi, Xi'an 710071, China
| | - Zhen-Qiang He
- State Key Laboratory of Oncology in South China, Department of Neurosurgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jing-Dan Qiu
- Department of General Surgery, the Chinese PLA General Hospital, Beijing 100039, China
| | - Xi-Bo Ma
- Key Laboratory of Molecular Imaging of the Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Wen-Ting Shang
- Key Laboratory of Molecular Imaging of the Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Dan Ding
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jie Tian
- Key Laboratory of Molecular Imaging of the Chinese Academy of Sciences, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China.,Beijing Key Laboratory of Molecular Imaging, Beijing 100190, China
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Wang R, Kuang M, Nie H, Bai W, Sun L, Wang F, Mao D, Wang Z. Impact of Food Restriction on the Expression of the Adiponectin System and Genes in the Hypothalamic-Pituitary-Ovarian Axis of Pre-Pubertal Ewes. Reprod Domest Anim 2016; 51:657-64. [PMID: 27405252 DOI: 10.1111/rda.12727] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 05/31/2016] [Indexed: 12/20/2022]
Abstract
Adiponectin, a cytokine secreted typically by adipocytes, has been implicated as a molecular switch between female reproduction and energy balance. The present study was undertaken to investigate the expression of adiponectin system and patterns of genes in the hypothalamic-pituitary-ovary (HPO) axis of food-restricted pre-pubertal ewes. Eighteen 2-month-old female ewes were assigned to 3 groups after a pre-feeding ad libitum for 10 days (six in each group): the control group (C), the low-food-restricted group (LR) and the high-food-restricted group (HR), which were fed with 100%, 70% and 50% of ad libitum food intake, respectively. The hypothalamus, pituitary, ovary and serum were collected after food restriction for 2 months. Results by ELISA showed that food restriction increased serum adiponectin concentrations. Quantitative real-time PCR showed that the gene transcriptions for adiponectin receptor 1 (AdipoR1) and 2 (AdipoR2) were enhanced in the hypothalamic-pituitary-ovarian (HPO) axis, while KISS-1/GPR-54 and gonadotropin-releasing hormone (GnRH) in the hypothalamus and luteinizing hormone β-subunit (LHβ) and follicle-stimulating hormone β-subunit (FSHβ) in the pituitary were reduced after food restriction. Immunohistochemistry results demonstrated that AdipoR1 localized in the oocytes of follicles in the ovary. These results suggest that the alterations in the expression of adiponectin and its receptors in response to food restriction might negatively influence the HPO axis.
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Affiliation(s)
- R Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.,Jiangsu Engineering Technology Research Center of Mutton Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - M Kuang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - H Nie
- Jiangsu Engineering Technology Research Center of Mutton Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - W Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - L Sun
- Jiangsu Engineering Technology Research Center of Mutton Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - F Wang
- Jiangsu Engineering Technology Research Center of Mutton Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China
| | - D Mao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
| | - Z Wang
- Jiangsu Engineering Technology Research Center of Mutton Sheep & Goat Industry, Nanjing Agricultural University, Nanjing, China.
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50
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Cai Y, Zhan J, Shen H, Mao D, Ji S, Liu R, Yang B, Kong D, Wang L, Yang Z. Optimized Ratiometric Fluorescent Probes by Peptide Self-Assembly. Anal Chem 2015; 88:740-5. [DOI: 10.1021/acs.analchem.5b02955] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yanbin Cai
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Jie Zhan
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Haosheng Shen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Duo Mao
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Shenglu Ji
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Ruihua Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Bing Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Ling Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy,
and Tianjin Key Laboratory of Molecular Drug Research, and ‡Key Laboratory
of Bioactive Materials, Ministry of Education, College of Life Sciences,
and Collaborative Innovation Center of Chemical Science and Engineering,
Tianjin, Nankai University, Tianjin 300071, People’s Republic of China
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