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Mutalik C, Saukani M, Khafid M, Krisnawati DI, Darmayanti R, Puspitasari B, Cheng TM, Kuo TR. Gold-Based Nanostructures for Antibacterial Application. Int J Mol Sci 2023; 24:10006. [PMID: 37373154 DOI: 10.3390/ijms241210006] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/04/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Bacterial infections have become a fatal threat because of the abuse of antibiotics in the world. Various gold (Au)-based nanostructures have been extensively explored as antibacterial agents to combat bacterial infections based on their remarkable chemical and physical characteristics. Many Au-based nanostructures have been designed and their antibacterial activities and mechanisms have been further examined and demonstrated. In this review, we collected and summarized current developments of antibacterial agents of Au-based nanostructures, including Au nanoparticles (AuNPs), Au nanoclusters (AuNCs), Au nanorods (AuNRs), Au nanobipyramids (AuNBPs), and Au nanostars (AuNSs) according to their shapes, sizes, and surface modifications. The rational designs and antibacterial mechanisms of these Au-based nanostructures are further discussed. With the developments of Au-based nanostructures as novel antibacterial agents, we also provide perspectives, challenges, and opportunities for future practical clinical applications.
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Affiliation(s)
- Chinmaya Mutalik
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Muhammad Saukani
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Department of Mechanical Engineering, Faculty of Engineering, Universitas Islam Kalimantan MAB, Banjarmasin 70124, Kalimantan Selatan, Indonesia
| | - Muhamad Khafid
- Department of Nursing, Faculty of Nursing and Midwifery, Universitas Nahdlatul Ulama Surabaya, Surabaya 60237, East Java, Indonesia
| | | | - Rofik Darmayanti
- Dharma Husada Nursing Academy, Kediri 64117, East Java, Indonesia
| | | | - Tsai-Mu Cheng
- Graduate Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
- Cardiovascular Research Center, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Stanford Byers Center for Biodesign, Stanford University, Stanford, CA 94305, USA
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2
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Hu TY, Mayasari NR, Cheng TM, Bai CH, Chao JCJ, Huang YL, Wang FF, Skalny AV, Tinkov AA, Chang JS. Polymorphisms of haptoglobin modify the relationship between dietary iron and the risk of gestational iron-deficiency anemia. Eur J Nutr 2023; 62:299-309. [PMID: 35974112 DOI: 10.1007/s00394-022-02987-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/05/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE To assess whether polymorphisms of haptoglobin (Hp) modify the relationship between dietary iron and the risk of gestational iron-deficiency anemia (IDA). METHODS This study analyzed 1430 singleton pregnant women aged 20 ~ ≤ 48 years from the 2017-2019 National Nutrition and Health Survey of Pregnant Women in Taiwan. Sociodemographic, blood biochemical, Hp phenotype, and 24-h dietary recall data were collected. Erythropoiesis-related total prenatal supplementation was defined as the reported use of multivitamins and minerals, vitamin B complex, folate, and iron. RESULTS Distributions of the Hp 1-1, Hp 2-1, and Hp 2-2 phenotypes were 13.6, 39.8, and 46.5%, respectively. Women with the Hp 1-1 phenotype had the lowest mean levels of serum ferritin (p-trend = 0.017), the highest prevalence of gestational ID (p-trend = 0.033) as well as the highest prevalence of gestational IDA (did not reach statistical differences, p-trend = 0.086). A gene-diet interaction on serum ferritin was observed between the Hp 1 and Hp 2 (2-1/2-2) alleles (p < 0.001). An adjusted multivariate logistic regression showed that compared to those with a normal blood iron status and who reported using erythropoiesis-related total prenatal supplements, those who did not had a 4.05-fold [odds ratio (OR) = 4.05 (95% confidence interval (CI) 2.63-6.24), p < 0.001] increased risk of gestational IDA. The corresponding ORs for carriers of the Hp 1 and Hp 2 alleles were 4.78 (95% CI 1.43-15.99) and 3.79 (95% CI 2.37-6.06), respectively. CONCLUSION Pregnant women who are Hp 1 carriers are at increased risk for developing IDA if they do not meet the recommended dietary allowance for iron or use erythropoiesis-related prenatal supplements.
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Affiliation(s)
- Tzu-Yu Hu
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan
| | - Noor Rohmah Mayasari
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chyi-Huey Bai
- Department of Public Health, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Jane C-J Chao
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan.,College of Public Health, Master Program in Global Health and Development, Taipei Medical University, Taipei, Taiwan.,Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Ya-Li Huang
- Department of Public Health, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Fan-Fen Wang
- Department of Medicine, Yangming Branch, Taipei City Hospital, Taipei, Taiwan.,National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Anatoly V Skalny
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.,KG Razumovsky Moscow State University of Technologies and Management, 109004, Moscow, Russia
| | - Alexey A Tinkov
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.,Yaroslavl State University, Yaroslavl, Russia
| | - Jung-Su Chang
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, 250 Wu-Xing Street, Taipei, 11031, Taiwan. .,Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan. .,Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan. .,Chinese Taipei Society for the Study of Obesity (CTSSO), Taipei, Taiwan.
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3
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Chu HY, Chen LC, Kuo TR, Shih CC, Yougbaré S, Chen YH, Cheng TM. Haptoglobin-Conjugated Gold Nanoclusters as a Nanoantibiotic to Combat Bacteremia. Nanomaterials (Basel) 2022; 12:3596. [PMID: 36296784 PMCID: PMC9611519 DOI: 10.3390/nano12203596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/07/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
Gold nanoclusters have revealed great potential as nanoantibiotics due to their superior chemical and physical characteristics. In this study, a peptide with 83 amino acids derived from haptoglobin was utilized as a surface ligand to synthesize gold nanoclusters via a facile hydrothermal approach. Characterization of the structural and optical properties demonstrated the successful synthesis of derived haptoglobin-conjugated gold nanoclusters. The spherical derived haptoglobin-conjugated gold nanoclusters exhibited a (111) plane of cubic gold and an ultra-small size of 3.6 ± 0.1 nm. The optical properties such as ultraviolet-visible absorption spectra, X-ray photoelectron spectroscopy spectra, fluorescence spectra, and Fourier transform infrared spectra also validated the successful conjugation between the derived haptoglobin peptide and the gold nanoclusters surface. The antibacterial activity, reactive oxygen species production, and antibacterial mechanisms of derived haptoglobin-conjugated gold nanoclusters were confirmed by culturing the bacterium Escherichia coli with hemoglobin to simulate bacteremia. The surface ligand of the derived haptoglobin peptide of derived haptoglobin-conjugated gold nanoclusters was able to conjugate with hemoglobin to inhibit the growth of Escherichia coli. The derived haptoglobin-conjugated gold nanoclusters with an ultra-small size also induced reactive oxygen species production, which resulted in the death of Escherichia coli. The superior antibacterial activity of derived haptoglobin-conjugated gold nanoclusters can be attributed to the synergistic effect of the surface ligand of the derived haptoglobin peptide and the ultra-small size. Our work demonstrated derived haptoglobin-conjugated gold nanoclusters as a promising nanoantibiotic for combating bacteremia.
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Affiliation(s)
- Hsiu-Yi Chu
- Graduate Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Lung-Ching Chen
- Division of Cardiology, Department of Internal Medicine, Shin Kong Wu Ho-Su Memorial Hospital, Taipei 111045, Taiwan
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chun-Che Shih
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
- Division of Cardiovascular Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 11230, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Sibidou Yougbaré
- Institut de Recherche en Sciences de La Santé/Direction Régionale du Centre Ouest (IRSS/DRCO), Nanoro BP 218, 11, Burkina Faso
| | - Yu-Han Chen
- Graduate Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
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Rethi L, Mutalik C, Anurogo D, Lu LS, Chu HY, Yougbaré S, Kuo TR, Cheng TM, Chen FL. Lipid-Based Nanomaterials for Drug Delivery Systems in Breast Cancer Therapy. Nanomaterials (Basel) 2022; 12:2948. [PMID: 36079985 PMCID: PMC9458017 DOI: 10.3390/nano12172948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/18/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Globally, breast cancer is one of the most prevalent diseases, inducing critical intimidation to human health. Lipid-based nanomaterials have been successfully demonstrated as drug carriers for breast cancer treatment. To date, the development of a better drug delivery system based on lipid nanomaterials is still urgent to make the treatment and diagnosis easily accessible to breast cancer patients. In a drug delivery system, lipid nanomaterials have revealed distinctive features, including high biocompatibility and efficient drug delivery. Specifically, a targeted drug delivery system based on lipid nanomaterials has inherited the advantage of optimum dosage and low side effects. In this review, insights on currently used potential lipid-based nanomaterials are collected and introduced. The review sheds light on conjugation, targeting, diagnosis, treatment, and clinical significance of lipid-based nanomaterials to treat breast cancer. Furthermore, a brighter side of lipid-based nanomaterials as future potential drug delivery systems for breast cancer therapy is discussed.
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Affiliation(s)
- Lekshmi Rethi
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Dito Anurogo
- International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan or
- Faculty of Medicine and Health Sciences, Universitas Muhammadiyah Makassar, Makassar City 90221, South Sulawesi, Indonesia
| | - Long-Sheng Lu
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Department of Radiation Oncology, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsiu-Yi Chu
- Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Sibidou Yougbaré
- Institut de Recherche en Sciences de la Santé/Direction Régionale du Centre Ouest (IRSS/DRCO), Nanoro BP 218, 11, Burkina Faso
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology, Taipei Medical University, Taipei 11031, Taiwan
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
| | - Fu-Lun Chen
- Department of Internal Medicine, Division of Infectious Diseases, Taipei Municipal Wan Fang Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
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Lee PY, Cheng TM, Yougbaré S, Lin LY. Design of novel self-assembled MXene and ZIF67 derivative composites as efficient electroactive material of energy storage device. J Colloid Interface Sci 2022; 618:219-228. [PMID: 35339958 DOI: 10.1016/j.jcis.2022.03.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 12/20/2022]
Abstract
High surface area and tunable pore size are beneficial for metal organic frameworks (MOFs) as electroactive material of energy storage devices. Novel ZIF67 derivative proposed in our previous work, nickel cobalt fluoride coupled with ammonia ions (NCNF), is synthesized using ammonia fluoride to solve poor electrical conductivity of MOFs. MXene is commonly incorporated in pseudo-capacitive materials to enhance electrical conductivity and energy storage ability. In this study, it is the first time to design MXene and NCNF composites (MXene/NCNF) with different MXene amounts via incorporating MXene in growing process of NCNF. MXene and NCNF are combined via self-assembly in a simple room temperature solution process. The optimized MXene/NCNF electrode shows a higher specific capacitance of 1020.0 F g-1 (170.0 mAh g-1) than that of NCNF electrode (574.2 F g-1 and 95.7 mAh g-1) at 20 mV s-1, due to excellent surface properties of MXene/NCNF with conductive network of MXene and high electrocapacitive performance of NCNF. A symmetric energy storage device composed of the optimized MXene/NCNF electrodes presents outstanding cycling stability with Coulombic efficiency of 100% during whole cycling process and a high capacitance retention of 99% after 6000 cycles. Excellent electrochemical performance and simple synthesis of MXene/NCNF open new blueprints for designing novel electrocapacitive materials for electrochemical applications.
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Affiliation(s)
- Pin-Yan Lee
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan.
| | - Sibidou Yougbaré
- Institut de Recherche en Sciences de la Santé (IRSS-DRCO), Nanoro, 03 B.P 7192, Ouagadougou 03, Burkina Faso
| | - Lu-Yin Lin
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan.
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6
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Chang LH, Chuang EY, Cheng TM, Lin C, Shih CM, Wu AT, Jheng PR, Lu HY, Shih CC, Mi FL. Thrombus-specific theranostic nanocomposite for codelivery of thrombolytic drug, algae-derived anticoagulant and NIR fluorescent contrast agent. Acta Biomater 2021; 134:686-701. [PMID: 34358695 DOI: 10.1016/j.actbio.2021.07.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 07/13/2021] [Accepted: 07/29/2021] [Indexed: 12/12/2022]
Abstract
Thrombolysis is a standard treatment for rapidly restoring blood flow. However, the application of urokinase-type plasminogen activator (Uk) in clinical therapy is limited due to its nonspecific distribution and inadequate therapeutic accumulation. Precise thrombus imaging and site-specific drug delivery can enhance the diagnostic and therapeutic efficacy for thrombosis. Accordingly, we developed a P-selectin-specific, photothermal theranostic nanocomposite for thrombus-targeted codelivery of Uk and indocyanine green (ICG, a contrast agent for near-infrared (NIR) fluorescence imaging). We evaluated its capabilities for thrombus imaging and enzyme/hyperthermia combined thrombolytic therapy. Mesoporous silica-coated gold nanorods (Si-AuNRs) were functionalized with an arginine-rich peptide to create an organic template for the adsorption of ICG and fucoidan (Fu), an algae-derived anticoagulant. Uk was loaded into the SiO2 pores of the Si-AuNRs through the formation of a Fu-Uk-ICG complex on the peptide-functionalized template. The Fu-Uk/ICG@SiAu NRs nanocomposite increased the photostability of ICG and improved its targeting/accumulation at blood clot sites with a strong NIR fluorescence intensity for precise thrombus imaging. Furthermore, ICG incorporated into the nanocomposite enhanced the photothermal effect of Si-AuNRs. Fu, as a P-selectin-targeting ligand, enabled the nanocomposite to target a thrombus site where platelets were activated. The nanocomposite enabled a faster release of Uk for rapid clearing of blood clots and a slower release of Fu for longer lasting prevention of thrombosis regeneration. The nanocomposite with multiple functions, including thrombus-targeting drug delivery, photothermal thrombolysis, and NIR fluorescence imaging, is thus an advanced theranostic platform for thrombolytic therapy with reduced hemorrhaging risk and enhanced imaging/thrombolysis efficiency. STATEMENT OF SIGNIFICANCE: Herein, for the first time, a P-selectin specific, photothermal theranostic nanocomposite for thrombus-targeted co-delivery of urokinase and NIR fluorescence contrast agent indocyanine green (ICG) was developed. We evaluated the potential of this theranostic nanocomposite for thrombus imaging and enzyme/hyperthermia combined thrombolytic therapy. The nanocomposite showed multiple functions including thrombus targeting and imaging, and photothermal thrombolysis. Besides, it allowed faster release of the thrombolytic urokinase for rapidly clearing blood clots and slower release of a brown algae-derived anticoagulant fucoidan (also acting as a P-selectin ligand) for prevention of thrombosis regeneration. The nanocomposite is thus a new and advanced theranostic platform for targeted thrombolytic therapy.
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Affiliation(s)
- Lee-Hsin Chang
- School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Er-Yuan Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsai-Mu Cheng
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
| | - Chi Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chun-Ming Shih
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan; Division of Cardiology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 11031, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Alexander Th Wu
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan
| | - Pei-Ru Jheng
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Hsin-Ying Lu
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan; Division of Cardiovascular Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei 11031, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan
| | - Chun-Che Shih
- Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan; Division of Cardiovascular Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei 11031, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming Chiao Tung University, Taipei, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
| | - Fwu-Long Mi
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Taipei Heart Institute, Taipei Medical University, Taipei 11031, Taiwan; Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan.
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Lu HY, Shih CM, Sung SH, Wu ATH, Cheng TM, Lin YC, Shih CC. Galectin-3 as a Biomarker for Stratifying Abdominal Aortic Aneurysm Size in a Taiwanese Population. Front Cardiovasc Med 2021; 8:663152. [PMID: 34136544 PMCID: PMC8200414 DOI: 10.3389/fcvm.2021.663152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/05/2021] [Indexed: 11/29/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) ruptures are unpredictable and lethal. A biomarker predicting AAA rupture risk could help identify patients with small, screen-detected AAAs. Galectin-3 (Gal-3), a β-galactosidase–binding lectin, is involved in inflammatory processes and may be associated with AAA incidence. We investigated whether Gal-3 can be used as a biomarker of AAA size. Plasma Gal-3 protein concentrations were examined in patients with AAA (n = 151) and control patients (n = 195) using Human ProcartaPlex multiplex and simplex kits. Circulating Gal-3 levels were significantly higher in patients with AAA than in control patients. The area under the receiver operating characteristic curve for Gal-3 was 0.91. Multivariate logistic regression analysis revealed a significant association between Gal-3 level and the presence of AAA. Circulating Gal-3 levels were significantly correlated with aortic diameter in a concentration-dependent manner. In conclusion, higher plasma Gal-3 concentrations may be a useful biomarker of AAA progression.
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Affiliation(s)
- Hsin-Ying Lu
- Division of Cardiovascular Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan
| | - Chun-Ming Shih
- Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan.,Division of Cardiology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shih-Hsien Sung
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.,Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Alexander T H Wu
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Tsai-Mu Cheng
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yen-Chung Lin
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Chun-Che Shih
- Division of Cardiovascular Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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8
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Wu SJ, Arundhathi A, Wang HC, Chen CY, Cheng TM, Yuan SSF, Wang YM. Migration and invasion of NSCLC suppressed by the downregulation of Src/focal adhesion kinase using single, double and tetra domain anti- CEACAM6 antibodies. Transl Oncol 2021; 14:101057. [PMID: 33934053 PMCID: PMC8105299 DOI: 10.1016/j.tranon.2021.101057] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/05/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
Overexpression of CEACAM 6 involved in the development of non-small cell lung cancer. Anti-CEACAM 6 antibodies with different valences can be used to target CEACAM 6 overexpressing tumor cells. Tetravalent sdAb (4Ab) showed significant effect on cell viability. High affinity anti-CEACAM 6 antibodies potentially inhibited migration via src/FAK pathway.
Carcinoembryonic antigen-related cell adhesion molecules 6 (CEACAM6) is a cell adhesion receptor. Expression of CEACAM6 in non-small cell lung cancer (NSCLC) associated with tumor progression and metastatic condition via Src/FAK signaling pathway. We established three anti-CEACAM6 antibodies with valences, which were designed to be monomeric sdAb, bivalent sdAb (2Ab), and tetravalent sdAb (4Ab). The anti-CEACAM6 antibodies can be used to target CEACAM6 overexpressing NSCLC. Anti-CEACAM6 antibodies, sdAb, 2Ab and 4Ab, were modified with different valency via protein engineering. sdAb and multivalent sdAbs (2Ab & 4Ab) were expressed and purified from E.coli and CHO cells, respectively. We compared the effect of anti-CEACAM6 antibodies with doxorubicin in NSCLC cell line both in vitro and in vivo. The 4Ab showed significant effect on cell viability. In addition, A549 cells treated with 2Ab and 4Ab inhibited the invasion and migration. In western blot, the 2Ab and 4Ab showed significant inhibition of phospho FAK domain Ty397 that is essential for activation of Src kinase family. Meanwhile, overall protein analysis revealed that 2Ab and 4Ab potently inhibited the phosphorylation of pSRC, pERK, pFAK, pAKT, MMP-2, MMP-9 and N-cadherin. Anti-tumor effect was observed in an A549 NSCLC xenograft model treated with 2Ab or 4Ab compared with doxorubicin. Confocal analysis showed higher targeting ability of 4Ab than that of 2Ab at 4 h incubation. Our data suggests that 2Ab and 4Ab inhibits EMT-mediated migration and invasion via suppression of Src/FAK signaling, which exhibits therapeutic efficiency for NSCLC treatment.
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Affiliation(s)
- Shang-Jung Wu
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan; Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan
| | - Arivajiagane Arundhathi
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan; Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan
| | - Hsiang-Ching Wang
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan; Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan
| | - Chiao-Yun Chen
- Department of Medical Imaging, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Radiology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan..
| | - Shyng-Shiou F Yuan
- Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; Faculty and College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Yun-Ming Wang
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan; Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Yang Ming Chiao Tung University, 75 Bo-Ai Street, Hsinchu 300, Taiwan; Department of Biomedical Science and Environmental Biology, Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
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9
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Cheng TM, Li R, Kao YCJ, Hsu CH, Chu HL, Lu KY, Changou CA, Chang CC, Chang LH, Tsai ML, Mi FL. Synthesis and characterization of Gd-DTPA/fucoidan/peptide complex nanoparticle and in vitro magnetic resonance imaging of inflamed endothelial cells. Materials Science and Engineering: C 2020; 114:111064. [DOI: 10.1016/j.msec.2020.111064] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/25/2020] [Accepted: 05/05/2020] [Indexed: 01/10/2023]
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10
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Yougbaré S, Mutalik C, Krisnawati DI, Kristanto H, Jazidie A, Nuh M, Cheng TM, Kuo TR. Nanomaterials for the Photothermal Killing of Bacteria. Nanomaterials (Basel) 2020; 10:E1123. [PMID: 32517253 PMCID: PMC7353317 DOI: 10.3390/nano10061123] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/30/2020] [Accepted: 06/03/2020] [Indexed: 12/11/2022]
Abstract
An upsurge in the multidrug-resistant (MDR) bacterial pestilence is a global cause for concern in terms of human health. Lately, nanomaterials with photothermal effects have assisted in the efficient killing of MDR bacteria, attributable to their uncommon plasmonic, photocatalytic, and structural properties. Examinations of substantial amounts of photothermally enabled nanomaterials have shown bactericidal effects in an optimized time under near-infrared (NIR) light irradiation. In this review, we have compiled recent advances in photothermally enabled nanomaterials for antibacterial activities and their mechanisms. Photothermally enabled nanomaterials are classified into three groups, including metal-, carbon-, and polymer-based nanomaterials. Based on substantial accomplishments with photothermally enabled nanomaterials, we have inferred current trends and their prospective clinical applications.
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Affiliation(s)
- Sibidou Yougbaré
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; (S.Y.); (C.M.)
- Institut de Recherche en Sciences de la Santé (IRSS-DRCO)/Nanoro, 03 B.P 7192, Ouagadougou 03, Burkina Faso
| | - Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; (S.Y.); (C.M.)
| | - Dyah Ika Krisnawati
- Dharma Husada Nursing Academy, Kediri, East Java 64114, Indonesia; (D.I.K.); or (H.K.)
| | - Heny Kristanto
- Dharma Husada Nursing Academy, Kediri, East Java 64114, Indonesia; (D.I.K.); or (H.K.)
| | - Achmad Jazidie
- Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia;
- Universitas Nahdlatul Ulama Surabaya, Surabaya 60111, Indonesia
| | - Mohammad Nuh
- Department of Biomedical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia; or
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; (S.Y.); (C.M.)
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
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11
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Hsu MH, Hsieh CY, Kapoor M, Chang JH, Chu HL, Cheng TM, Hsu KC, Lin TE, Tsai FY, Horng JC. Leucettamine B analogs and their carborane derivative as potential anti-cancer agents: Design, synthesis, and biological evaluation. Bioorg Chem 2020; 98:103729. [DOI: 10.1016/j.bioorg.2020.103729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 12/30/2022]
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12
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Chew CH, Lee CW, Huang WT, Cheng LW, Chen A, Cheng TM, Liu YL, Chen CC. Microtube Array Membrane (MTAM)-Based Encapsulated Cell Therapy for Cancer Treatment. Membranes (Basel) 2020; 10:E80. [PMID: 32357523 PMCID: PMC7281484 DOI: 10.3390/membranes10050080] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 02/03/2023]
Abstract
The treatment of cancer has evolved significantly in recent years with a strong focus on immunotherapy. Encapsulated Cell Therapy (ECT) for immunotherapy-based anti-cancer treatment is a unique niche within this landscape, where molecules such as signaling factors and antibodies produced from cells are encapsulated within a vehicle, with a host amount of benefits in terms of treatment efficacy and reduced side effects. However, traditional ECTs generally lie in two extremes; either a macro scale vehicle is utilized, resulting in a retrievable system but with limited diffusion and surface area, or a micro scale vehicle is utilized, resulting in a system that has excellent diffusion and surface area but is unretrievable in the event of side effects occurring, which greatly compromises the biosafety of patients. In this study we adapted our patented and novel electrospun Polysulfone (PSF) Microtube Array Membranes (MTAMs) as a 'middle' approach to the above dilemma, which possess excellent diffusion and surface area while being retrievable. Hybridoma cells were encapsulated within the PSF MTAMs, where they produced CEACAM6 antibodies to be used in the suppression of cancer cell line A549, MDA-MB-468 and PC 3 (control). In vitro and in vivo studies revealed excellent cell viability of hybridoma cells with continuous secretion of CEACAM6 antibodies which suppressed the MDA-MB-468 throughout the entire 21 days of experiment. Such outcome suggested that the PSF MTAMs were not only an excellent three-dimensional (3D) cell culture substrate but potentially also an excellent vehicle for the application in ECT systems. Future research needs to include a long term in vivo >6 months study before it can be used in clinical applications.
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Affiliation(s)
- Chee Ho Chew
- Graduate Institute of Biomedical Materials & Tissue Engineering, Taipei Medical University, Xinyi District, Taipei 11031, Taiwan; (C.H.C.); (C.-W.L.); (W.-T.H.); (L.-W.C.)
| | - Chih-Wei Lee
- Graduate Institute of Biomedical Materials & Tissue Engineering, Taipei Medical University, Xinyi District, Taipei 11031, Taiwan; (C.H.C.); (C.-W.L.); (W.-T.H.); (L.-W.C.)
| | - Wan-Ting Huang
- Graduate Institute of Biomedical Materials & Tissue Engineering, Taipei Medical University, Xinyi District, Taipei 11031, Taiwan; (C.H.C.); (C.-W.L.); (W.-T.H.); (L.-W.C.)
| | - Li-Wei Cheng
- Graduate Institute of Biomedical Materials & Tissue Engineering, Taipei Medical University, Xinyi District, Taipei 11031, Taiwan; (C.H.C.); (C.-W.L.); (W.-T.H.); (L.-W.C.)
| | - Amanda Chen
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA;
| | - Tsai-Mu Cheng
- The PhD Program for Translational Medicine, Taipei Medical University, Taipei 11052, Taiwan;
| | - Yen-Lin Liu
- Department of Pediatrics, Taipei Medical University Hospital, Taipei 11052, Taiwan;
| | - Chien-Chung Chen
- Graduate Institute of Biomedical Materials & Tissue Engineering, Taipei Medical University, Xinyi District, Taipei 11031, Taiwan; (C.H.C.); (C.-W.L.); (W.-T.H.); (L.-W.C.)
- The PhD Program for Translational Medicine, Taipei Medical University, Taipei 11052, Taiwan;
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110, Taiwan
- International PhD Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
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Lin CC, Chang WHS, Cheng TM, Chiu LH, Wang YH, Lin CAJ, Ho YS, Zuo CS, Wang YM, Lai WFT. Two new, near-infrared, fluorescent probes as potential tools for imaging bone repair. Sci Rep 2020; 10:2580. [PMID: 32054952 PMCID: PMC7018698 DOI: 10.1038/s41598-020-59522-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 01/14/2020] [Indexed: 11/30/2022] Open
Abstract
A precise imaging technique to evaluate osteogenesis, osteodifferentiation, and osseointegration following peri-implant surgery is in high clinical demand. Herein, we report the generation of two new, near-infrared (NIR) fluorescent probes for use in the molecular imaging of bone repair. The first probe aims to monitor the in vitro differentiation of human mesenchymal stem cells (MSCs) into osteoblasts. A NIR fluorochrome was conjugated to a cyclic peptide that binds to integrin α5β1, a factor that promotes osteogenesis in MSCs and therefore functioned as an osteoblast-specific marker. The second probe aims to monitor osteogenesis, and was generated by conjugating the drug pamidronate to a NIR fluorescent gold nanocluster. Pamidronate specifically binds to hydroxyapatite (HA), a mineral present in bone that is produced by osteoblasts, and therefore provides a functional marker for new bone formation. Our results show that both probes bind to their specific targets in vitro-differentiated osteoblasts, and not to undifferentiated MSCs, and emit NIR fluorescence for functional detection. This in vitro work demonstrates the ability of these probes to bind to active osteoblasts and their mineral deposits and highlight their potential utility as clinical tools for the imaging of the osseointegration process at the molecular level.
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Affiliation(s)
- Chien-Chou Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | | | - Tsai-Mu Cheng
- Ph.D. Program for Translational Medicine, College of Medicine and Technology, Taipei Medical University, Taipei, Taiwan
| | - Li-Hsuan Chiu
- McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA
- Department of Research and Department of Dentistry, Taipei Medical University/Shuang-Ho Hospital, New Taipei City, Taiwan
| | - Yen-Hsun Wang
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao Tung University, Hsinchu, Taiwan
| | - Cheng-An J Lin
- Department of Biomedical Engineering, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Yuan-Soon Ho
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chun S Zuo
- McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA
| | - Yun-Ming Wang
- Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, Center for Intelligent Drug Systems and Smart Bio-devices (IDS2B), National Chiao Tung University, Hsinchu, Taiwan.
| | - Wen-Fu Thomas Lai
- McLean Imaging Center, McLean Hospital, Harvard Medical School, Belmont, MA, USA.
- Institute of Graduate Clinical Medicine, Taipei Medical University, Taipei, Taiwan.
- Department of Research and Department of Dentistry, Taipei Medical University/Shuang-Ho Hospital, New Taipei City, Taiwan.
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14
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Tang KY, Huang SY, Cheng TM, Bai CH, Chang JS. Haptoglobin phenotype influences the effectiveness of diet-induced weight loss in middle-age abdominally obese women with metabolic abnormalities. Clin Nutr 2019; 39:225-233. [PMID: 30737047 DOI: 10.1016/j.clnu.2019.01.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/15/2019] [Accepted: 01/16/2019] [Indexed: 01/31/2023]
Abstract
BACKGROUND & AIMS Haptoglobin (Hp) is associated with risks of obesity and cardiometabolic dysfunction; however, the role of the Hp phenotype in diet-induced weight loss remains to be elucidated. This study investigated whether the Hp phenotype contributes to inter-individual variations in body weight reduction as well as changes in the metabolic profile. METHODS Secondary data analysis from a randomized controlled trial. In total, 151 abdominally obese Taiwanese women with ≥2 metabolic components were randomized to each of four dietary programs [calorie restriction (CR), calorie restriction plus fish oil supplementation (CRF), calorie restricted meal replacement (CRMR), and calorie restricted meal replacement with fish oil supplementation (CRMRF)] for 12 weeks. Abdominal obesity was defined as a waist circumference (WC) ≥ 80 cm in women. Hp phenotyping was performed by plasma gel electrophoresis. RESULTS The prevalence of the Hp 1-1, 2-1, and 2-2 phenotypes were 12.58%, 41.06% and 46.35%, respectively. The mean age was 50.59 ± 12.22 years, and mean reduction in the percent body weight was 4.7% ± 3.8%. The Hp 1-1 phenotype exhibited significant decreases in the WC, body fat mass, plasma insulin levels, free hemoglobin and homeostatic model assessment of insulin resistance (HOMA-IR) compared to the Hp 2-1 or Hp 2-2 phenotypes after adjusting for the baseline age, WC, metabolic syndrome (MetS), and dietary programs (all adjusted p < 0.05). A greater improvement in the prevalence of central obesity and, to a lesser extent, MetS was also found in women with the Hp 1-1 phenotype. CONCLUSIONS Obese women with the Hp 1-1 phenotype might obtain greater benefits in terms of reducing abdominal fat and improving insulin sensitivity in response to hypocaloric diet-induced weight reduction. The findings from this study support potential gene-diet interactions affecting weight loss. This trial was registered at ClinicalTrials.gov as NCT01768169. CLINICAL TRIAL REGISTRY This trial was registered at ClinicalTrials.gov as NCT01768169.
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Affiliation(s)
- Kelvin Yohanes Tang
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Shih-Yi Huang
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chyi-Huey Bai
- Department of Public Health, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Jung-Su Chang
- School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan; Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan; Chinese Taipei Society for the Study of Obesity, CTSSO, Taipei, Taiwan.
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15
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Lu DY, Lin CP, Wu CH, Cheng TM, Pan JP. Plasma haptoglobin level can augment NT-proBNP to predict poor outcome in patients with severe acute decompensated heart failure. J Investig Med 2018; 67:20-27. [PMID: 30287475 DOI: 10.1136/jim-2018-000710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2018] [Indexed: 12/31/2022]
Abstract
To evaluate the use of plasma haptoglobin (Hp) levels and N-terminal pro-B-type natriuretic peptide (NT-proBNP) in predicting survival in patients with severe acute decompensated heart failure (AHF). Management of AHF is challenging. Identifying markers associated with patient prognosis in this disease is clinically important. In this prospective observational study, plasma Hp and NT-proBNP levels were measured. Receiver operating characteristic (ROC) curves were used to identify cut-offs of Hp and NT-proBNP with the greatest specificity and sensitivity for predicting overall survival and cardiovascular-related survival. The cut-off values were tested in patients with AHF (n=41). The cut-off value with the greatest specificity and sensitivity with respect to overall survival and for cardiovascular-related survival for Hp was 177. 1 ng/mL for both outcomes and for NT-proBNP was 34 246.0 pg/mL and 11 848.5 ng/mL, respectively. Using these cut-off values, this study found that patients with lower baseline Hp levels (<177. 1 ng/mL) or higher baseline NT-proBNP (≥34 246 pg/mL) were more likely to have shorter overall survival. Similarly, patients with <177. 1 ng/mL of Hp and ≥11 848.5 pg/mL of NT-proBNP had the highest risk of death related to cardiovascular disease. Our findings indicate that Hp and NT-proBNP using specific cut-off values for AHF can be used to determine risk of survival in these patients.
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Affiliation(s)
- Dai-Yin Lu
- Divisionof Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chih-Pei Lin
- Institute of Biotechnology in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Section of Central Laboratory, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Hsueh Wu
- Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Department of Critical Care, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology Taipei Medical University, Taipei, Taiwan, ROC
| | - Ju-Pin Pan
- Divisionof Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Schoolof Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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16
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Zeng DF, Chen F, Wang S, Chen SL, Xu Y, Shen MQ, Du CH, Wang C, Kong PY, Cheng TM, Su YP, Wang JP. Autoantibody against integrin α v β 3 contributes to thrombocytopenia by blocking the migration and adhesion of megakaryocytes. J Thromb Haemost 2018; 16:1843-1856. [PMID: 29953749 DOI: 10.1111/jth.14214] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 05/31/2017] [Indexed: 01/04/2023]
Abstract
Essentials The pathogenesis of immune thrombocytopenia (ITP) has not been fully clarified. We analyzed the role of anti-αvβ3 autoantibody in the pathogenesis of ITP in patients. Anti-αvβ3 autoantibody impeded megakaryocyte migration and adhesion to the vascular niche. Anti-αv β3 autoantibody potentially contributes to the pathogenesis of refractory ITP. SUMMARY Background The pathogenesis of immune thrombocytopenia (ITP) has not been fully clarified. Anti-αvβ3 integrin autoantibody is detected in chronic ITP patients, but its contribution to ITP is still unclear. Objectives To clarify the potential role of anti-αvβ3 integrin autoantibody in chronic ITP and the related mechanism. Methods Relationship between levels of anti-αvβ3 autoantibody and platelets in chronic ITP patients was evaluated. The influence of anti-αvβ3 antibody on megakaryocyte (MK) survival, differentiation, migration and adhesion was assessed, and the associated signal pathways were investigated. Platelet recovery and MKs' distribution were observed in an ITP mouse model pretreated with different antibodies. Result In this study, we showed that the anti-αvβ3 autoantibody usually coexists with anti-αIIbβ3 autoantibody in chronic ITP patients, and patients with both autoantibodies have lower platelets. In in vitro studies, we showed that the anti-αvβ3 antibody had no significant effect on the survival and proliferation of MKs, whereas it decreased formations of proplatelet significantly. Anti-αvβ3 antibody impeded stromal cell derived facor-1 alpha (SDF-1α)- mediated migration and inhibited the phosphorylation of protein kinase B. Anti-αvβ3 antibody significantly inhibited MKs' adhesion to endothelial cells and Fibrogen. The phosphorylation of focal adhesion kinase and proto-oncogene tyrosine-protein kinase Src induced by adhesion was inhibited when MKs were pretreated with anti-αvβ3 antibody. In in vivo studies, we showed that injection with anti-αv antibody delayed platelet recovery in a mouse model of ITP. Conclusions These findings demonstrate that the autoantibody against integrin αv β3 may aggravate thrombocytopenia in ITP patients by impeding MK migration and adhesion to the vascular niche, which provides new insights into the pathogenesis of ITP.
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Affiliation(s)
- D F Zeng
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - F Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - S Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - S L Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Y Xu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - M Q Shen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - C H Du
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - C Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - P Y Kong
- Department of Hematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - T M Cheng
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Y P Su
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - J P Wang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
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17
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Nana AW, Wu SY, Yang YCS, Chin YT, Cheng TM, Ho Y, Li WS, Liao YM, Chen YR, Shih YJ, Liu YR, Pedersen J, Incerpi S, Hercbergs A, Liu LF, Whang-Peng J, Davis PJ, Lin HY. Nano-Diamino-Tetrac (NDAT) Enhances Resveratrol-Induced Antiproliferation by Action on the RRM2 Pathway in Colorectal Cancers. Discov Oncol 2018; 9:349-360. [PMID: 30027502 DOI: 10.1007/s12672-018-0334-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 05/10/2018] [Indexed: 12/19/2022] Open
Abstract
Cancer resistance to chemotherapeutic agents is a major issue in the management of cancer patients. Overexpression of the ribonucleotide reductase regulatory subunit M2 (RRM2) has been associated with aggressive cancer behavior and chemoresistance. Nano-diamino-tetrac (NDAT) is a nanoparticulate derivative of tetraiodothyroacetic acid (tetrac), which exerts anticancer properties via several mechanisms and downregulates RRM2 gene expression in cancer cells. Resveratrol is a stilbenoid phytoalexin which binds to a specific site on the cell surface integrin αvβ3 to trigger cancer cell death via nuclear translocation of COX-2. Here we report that resveratrol paradoxically activates RRM2 gene expression and protein translation in colon cancer cells. This unanticipated effect inhibits resveratrol-induced COX-2 nuclear accumulation. RRM2 downregulation, whether achieved by RNA interference or treatment with NDAT, enhanced resveratrol-induced COX-2 gene expression and nuclear uptake which is essential to integrin αvβ3-mediated-resveratrol-induced antiproliferation in cancer cells. Elsewhere, NDAT downregulated resveratrol-induced RRM2 expression in vivo but potentiated the anticancer effect of the stilbene. These findings suggest that RRM2 appears as a cancer cell defense mechanism which can hinder the anticancer effect of the stilbene via the integrin αvβ3 axis. Furthermore, the antagonistic effect of RRM2 against resveratrol is counteracted by the administration of NDAT.
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Affiliation(s)
- André Wendindondé Nana
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei, Taiwan
| | - Szu Yuan Wu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Radiation Oncology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Biotechnology, Hungkuang University, Taichung, Taiwan
| | - Yu-Chen Sh Yang
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Yu-Tang Chin
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yih Ho
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Wen-Shan Li
- Laboratory of Chemical Biology and Medicinal Chemistry, Institute of Chemistry, Academia Sinica, Taipei, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Yu-Min Liao
- Integrated Laboratory, Center of Translational Medicine, Core Facility, Taipei Medical University, Taipei, Taiwan
| | - Yi-Ru Chen
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | - Ya-Jung Shih
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | - Yun-Ru Liu
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Jens Pedersen
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Sandra Incerpi
- Department of Sciences, Roma Tre University, Rome, Italy
| | - Aleck Hercbergs
- Department of Radiation Oncology, Cleveland Clinic, Cleveland, OH, USA
| | - Leroy F Liu
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
| | | | - Paul J Davis
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Albany, NY, USA
- Department of Medicine, Albany Medical College, Albany, NY, USA
| | - Hung-Yun Lin
- PhD Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan.
- Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan.
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Albany, NY, USA.
- Traditional Herbal Medicine Research Center of Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan.
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18
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Cheng TM, Chu HL, Lee YC, Wang DY, Chang CC, Chung KL, Yen HC, Hsiao CW, Pan XY, Kuo TR, Chen CC. Quantitative Analysis of Glucose Metabolic Cleavage in Glucose Transporters Overexpressed Cancer Cells by Target-Specific Fluorescent Gold Nanoclusters. Anal Chem 2018; 90:3974-3980. [PMID: 29466668 DOI: 10.1021/acs.analchem.7b04961] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The glucose metabolism rate in cancer cells is a crucial piece of information for the cancer aggressiveness. A feasible method to monitor processes of oncogenic mutations has been demonstrated in this work. The fluorescent gold nanoclusters conjugated with glucose (glucose-AuNCs) were successfully synthesized as a cancer-targeting probe for glucose transporters (Gluts) overexpressed by U-87 MG cancer cells, which can be observed under confocal microscopy. The structural and optical characterizations of fluorescent glucose-AuNCs were confirmed by transmission electron microscope (TEM) and Fourier transform infrared spectroscopy (FTIR). The MTT assay exhibited the high biocompatibility of water-soluble glucose-AuNCs for further biomedical applications. The glucose metabolic cleavage of glucose-AuNCs by glycolytic enzymes from U-87 MG cancer cell was measured by fluorescence change of glucose-AuNCs. The fluorescence change based on the integrated area under fluorescence spectra ( A t) of glucose-AuNCs was plotted as a function of different reaction time ( t) with glycolytic enzymes. The fitted curve of A t versus t showed the first-order kinetics to explain the mechanism of glucose metabolic cleavage rate of glucose-AuNCs by glycolytic enzymes. The rate constant k could be utilized to determine the glucose metabolism rate of glucose-AuNCs for the quantitative analysis of cancer aggressiveness. Our work provides a practical application of target-specific glucose-AuNCs as a fluorescence probe to analyze the glucose metabolism in Gluts overexpressed cancer cells.
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Affiliation(s)
- Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology , Taipei Medical University , Taipei 11031 , Taiwan
| | - Hsueh-Liang Chu
- Graduate Institute of Translational Medicine, College of Medicine and Technology , Taipei Medical University , Taipei 11031 , Taiwan
| | - Yi-Cheng Lee
- Green Energy and Environment Research Laboratories , Industrial Technology Research Institute , Hsinchu 31040 , Taiwan
| | - Di-Yan Wang
- Department of Chemistry , Tunghai University , Taichung 40704 , Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medicine and Technology , Taipei Medical University , Taipei 11031 , Taiwan
| | - Kuan-Lan Chung
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Hung-Chi Yen
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Chu-Wen Hsiao
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Xi-Yu Pan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering , Taipei Medical University , Taipei 11031 , Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering , Taipei Medical University , Taipei 11031 , Taiwan.,International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering , Taipei Medical University , Taipei 11031 , Taiwan
| | - Chia-Chun Chen
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
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19
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Cheng TM, Chin YT, Ho Y, Chen YR, Yang YN, Yang YC, Shih YJ, Lin TI, Lin HY, Davis PJ. Resveratrol induces sumoylated COX-2-dependent anti-proliferation in human prostate cancer LNCaP cells. Food Chem Toxicol 2017; 112:67-75. [PMID: 29242151 DOI: 10.1016/j.fct.2017.12.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/30/2017] [Accepted: 12/08/2017] [Indexed: 11/18/2022]
Abstract
Cyclooxygenase (COX)-2 has been implicated in cancer development. However, resveratrol-induced nuclear accumulation of COX-2 enhances p53-dependent anti-proliferation in different types of cancers. Treatment with resveratrol leads to phosphorylation and nuclear translocation of mitogen-activated protein kinase (ERK1/2), and accumulation of nuclear COX-2 to complex with pERK1/2 and p53. The consequence is Ser-15 phosphorylation of p53 (pSer15-p53), and induction of anti-proliferation in cancer cells. We investigated the mechanisms by which resveratrol-inducible COX-2 facilitates p53-dependent anti-proliferation in prostate cancer LNCaP cells. Resveratrol treatment caused nuclear accumulation and complexing of ERK1/2, pSer15-p53 and COX-2 which was activated ERK1/2-dependent. Knockdown of SUMO-1 by shRNA also reduced nuclear accumulation of COX-2. Inhibition of nuclear accumulation by the COX-2 specific inhibitor, NS-398, inhibited co-localization of nuclear COX-2 and SUMO-1. Similar results were observed in the PD98059-treated cells. Finally, inhibition of SUMO-1 expression also reduced resveratrol-induced expression of pro-apoptotic genes but increased the expression of proliferative genes. In summary, these results demonstrate that inducible COX-2 associates with phosphorylated ERK1/2 to induce the phosphorylation of Ser-15 in p53 and then complexes with p53 and SUMO-1 which binds to p53-responsive pro-apoptotic genes to enhance their expression. The inhibition of COX-2 expression and activity significantly blocks the pro-apoptotic effect of resveratrol.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yu-Tang Chin
- College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yih Ho
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yi-Ru Chen
- College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan.
| | - Yung-Ning Yang
- Division of Pediatric Infectious Disease, Department of Pediatrics, E-Da Hospital/I-Shou University, Kaohsiung 84001, Taiwan.
| | - Yu-Chen Yang
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei 11031, Taiwan.
| | - Ya-Jang Shih
- College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan.
| | - Ting-I Lin
- Department of Pediatrics, E-DA Hospital, I-Shou University, Kaohsiung 84001, Taiwan.
| | - Hung-Yun Lin
- College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan; Taipei Cancer Center, Taipei Medical University, Taipei 11031, Taiwan; Traditional Herbal Medicine Research Center of Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan; Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Albany, NY 12208, USA.
| | - Paul J Davis
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Albany, NY 12208, USA; Albany Medical College, Albany, NY 12208, USA.
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20
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Lu KY, Lin PY, Chuang EY, Shih CM, Cheng TM, Lin TY, Sung HW, Mi FL. H 2O 2-Depleting and O 2-Generating Selenium Nanoparticles for Fluorescence Imaging and Photodynamic Treatment of Proinflammatory-Activated Macrophages. ACS Appl Mater Interfaces 2017; 9:5158-5172. [PMID: 28120612 DOI: 10.1021/acsami.6b15515] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Macrophages have a pivotal role in chronic inflammatory diseases (CIDs), so imaging and controlling activated macrophage is critical for detecting and reducing chronic inflammation. In this study, photodynamic selenium nanoparticles (SeNPs) with photosensitive and macrophage-targeting bilayers were developed. The first layer of the photosensitive macromolecule was composed of a conjugate of a photosensitizer (rose bengal, RB) and a thiolated chitosan (chitosan-glutathione), resulting in a plasmonic coupling-induced red shift and broadening of RB absorption bands with increased absorption intensity. Electron paramagnetic resonance (EPR) and diphenylanthracene (DPA) quenching studies revealed that the SeNPs that were coated with the photosensitive layer were more effective than RB alone in producing singlet oxygen (1O2) under photoirradiation. The second layer of the activated macrophage-targetable macromolecule was synthesized by conjugation of hyaluronic acid with folic acid using an ethylenediamine linker. Proinflammatory-activated macrophages rapidly internalized the SeNPs that were covered with the targeting ligand, exhibiting a much stronger fluorescence signal of the SeNPs than did the nonactivated macrophages. Since proinflammatory-activated macrophage was known to generate a substantial amount of H2O2 while the inflamed site generally caused inflammation-associated tissue hypoxia, the SeNPs were further modified with O2 self-sufficient function for photodynamic therapy. Catalase was immobilized on the SeNPs by the formation of disulfide bonds. Intracellular reduction of disulfide bonds induced the subsequent release of catalase, which catalyzed the decomposition of H2O2. The H2O2-depleting and O2-generating photodynamic SeNPs efficiently killed activated macrophages and quenched the intracellular H2O2 and NO that are associated with inflammation. The SeNPs may have potential as a theranostic nanomaterial to image and control the activation of macrophages.
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Affiliation(s)
- Kun-Ying Lu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University , Taipei 11031, Taiwan
| | - Po-Yen Lin
- Department of Chemical Engineering, National Tsing Hua University , Hsinchu 30013, Taiwan
| | - Er-Yuan Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, College of Biomedical Engineering, Taipei Medical University , Taipei 11031, Taiwan
| | - Chwen-Ming Shih
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University , Taipei 11031, Taiwan
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , Taipei 11031, Taiwan
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology, Taipei Medical University , Taipei 11031, Taiwan
| | - Tsung-Yao Lin
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University , Taipei 11031, Taiwan
| | - Hsing-Wen Sung
- Department of Chemical Engineering, National Tsing Hua University , Hsinchu 30013, Taiwan
- Institute of Biomedical Engineering, National Tsing Hua University , Hsinchu 30013, Taiwan, ROC
| | - Fwu-Long Mi
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University , Taipei 11031, Taiwan
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University , Taipei 11031, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University , Taipei 11031, Taiwan
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21
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Chiang KH, Kao YT, Leu HB, Huang PH, Huang SS, Cheng TM, Pan JP. Higher post-acute myocardial infarction plasma haptoglobin level is associated with poor long-term overall survival. Int J Cardiol 2016; 229:102-107. [PMID: 27913007 DOI: 10.1016/j.ijcard.2016.11.220] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 11/07/2016] [Indexed: 10/20/2022]
Abstract
AIM To evaluate the association of post-acute myocardial infarction (AMI) plasma haptoglobin (Hp) levels with long-term overall survival in AMI patients. METHODS AND RESULTS Patients who were diagnosed of AMI were recruited and their Hp phenotypes and plasma levels were determined. According to previously reported cutoff point for Hp level (288.4ng/ml), patients were classified as higher Hp group (>288.4ng/ml) and lower Hp group (≤288.4ng/ml). The primary outcome was overall survival. This study recruited and followed a total of 117 patients for a median of 11.0 (3.2-17.6) years. Higher Hp group had 46 patients (39.3%) and lower Hp group had 71 patients (60.7%). Twelve patients had Hp 1-1 (10.3%), 50 with Hp 2-1 (42.7%), and 55 with Hp 2-2 (47.0%). The lower Hp group had significantly better overall survival (174.1 [51.6-212.5] vs. 106.5 [22.2-209.1], P=0.037). There was no significant difference in overall survival between the three phenotype groups (P=0.477). Multivariate regression analysis revealed that increased age (adjusted HR=1.06, 95% CI: 1.03-1.10, P<0.001) and higher Hp level (adjusted HR=1.65, 95%=1.02-2.67, P=0.040) were significantly associated with poor overall survival. CONCLUSION Higher post-AMI plasma Hp level was independently associated with poor overall survival in AMI patients. No significant difference in overall survival was noted between three Hp phenotype groups. Acute phase Hp level might reflect the severity of oxidative stress during inflammation process.
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Affiliation(s)
- Kuang-Hsing Chiang
- Division of Cardiology and Cardiovascular Research Center, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan; Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Yung-Ta Kao
- Division of Cardiology and Cardiovascular Research Center, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Hsin-Bang Leu
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Healthcare and Service Center, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Po-Hsun Huang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Shao-Sung Huang
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Healthcare and Service Center, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan; Cardiovascular Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Tsai-Mu Cheng
- Institute for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.
| | - Ju-Pin Pan
- Division of Cardiology, Department of Internal Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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22
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Cheng TM, Murad YM, Chang CC, Yang MC, Baral TN, Cowan A, Tseng SH, Wong A, Mackenzie R, Shieh DB, Zhang J. Single domain antibody against carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) inhibits proliferation, migration, invasion and angiogenesis of pancreatic cancer cells. Eur J Cancer 2014; 50:713-21. [PMID: 22918079 DOI: 10.1016/j.ejca.2012.07.019] [Citation(s) in RCA: 20] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 06/26/2012] [Accepted: 07/26/2012] [Indexed: 01/06/2023]
Abstract
Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) is over-expressed in pancreatic cancer cells, and it is associated with the progression of pancreatic cancer. We tested a single domain antibody (sdAb) targeting CEACAM6, 2A3, which was isolated previously from a llama immune library, and an Fc conjugated version of this sdAb, to determine how they affect the pancreatic cancer cell line BxPC3. We also compared the effects of the antibodies to gemcitabine. Gemcitabine and 2A3 slowed down cancer cell proliferation. However, only 2A3 retarded cancer cell invasion, angiogenesis within the cancer mass and BxPC3 cell MMP-9 activity, three features important for tumour growth and metastasis. The IC50s for 2A3, 2A3-Fc and gemcitabine were determined as 6.5μM, 8μM and 12nM, respectively. While the 2A3 antibody inhibited MMP-9 activity by 33% compared to non-treated control cells, gemcitabine failed to inhibit MMP-9 activity. Moreover, 2A3 and 2A3-Fc inhibited invasion of BxPC3 by 73% compared to non-treated cells. When conditioned media that were produced using 2A3- or 2A3-Fc-treated BxPC3 cells were used in a capillary formation assay, the capillary length was reduced by 21% and 49%, respectively. Therefore 2A3 is an ideal candidate for treating tumours that over-express CEACAM6.
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Affiliation(s)
- Tsai-Mu Cheng
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan, ROC; Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada
| | - Yanal M Murad
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada
| | - Chia-Ching Chang
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan, ROC; Institute of Physics, Academia Sinica, Taipei 10529, Taiwan, ROC.
| | - Ming-Chi Yang
- Life Science Group, Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu, Taiwan, ROC
| | - Toya Nath Baral
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada
| | - Aaron Cowan
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada
| | - Shin-Hua Tseng
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan, ROC
| | - Andrew Wong
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada
| | - Roger Mackenzie
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada
| | - Dar-Bin Shieh
- Institute of Oral Medicine, College of Medicine and Hospital, National Cheng Kung University, Taiwan 70101
| | - Jianbing Zhang
- Institute for Biological Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, Canada.
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23
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Chu HL, Chen HW, Tseng SH, Hsu MH, Ho LP, Chou FH, Li MPHY, Chang YC, Chen PH, Tsai LY, Chou CC, Chen JS, Cheng TM, Chang CC. Development of a growth-hormone-conjugated nanodiamond complex for cancer therapy. ChemMedChem 2014; 9:1023-9. [PMID: 24677633 DOI: 10.1002/cmdc.201300541] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 12/18/2013] [Indexed: 01/28/2023]
Abstract
It is highly desirable to develop a therapeutic, observable nanoparticle complex for specific targeting in cancer therapy. Growth hormone (GH) and its antagonists have been explored as cancer cell-targeting molecules for both imaging and therapeutic applications. In this study, a low toxicity, biocompatible, therapeutic, and observable GH-nanoparticle complex for specifically targeting growth hormone receptor (GHR) in cancer cells was synthesized by conjugating GH with green fluorescence protein and carboxylated nanodiamond. Moreover, we have shown that this complex can be triggered by laser irradiation to create a "nanoblast" and induce cell death in the A549 non-small-cell lung cancer cell line via the apoptotic pathway. This laser-mediated, cancer-targeting platform can be widely used in cancer therapy.
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Affiliation(s)
- Hsueh-Liang Chu
- Department of Biological Science & Technology, National Chiao Tung, University, 75 Bo Ai Street, Hsinchu, Taiwan, 30068 (R.O.C.)
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24
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Lee CW, Cheng TM, Lin CP, Pan JP. Plasma haptoglobin concentrations are elevated in patients with coronary artery disease. PLoS One 2013; 8:e76817. [PMID: 24130793 PMCID: PMC3793939 DOI: 10.1371/journal.pone.0076817] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 08/28/2013] [Indexed: 01/06/2023] Open
Abstract
Inflammation underlies the development and progression of coronary artery plaques. Haptoglobin (Hp) is an acute phase protein, the synthesis of which is increased during inflammation. The aim of this study was to investigate plasma Hp concentrations and phenotype in patients with coronary artery disease (CAD). We recruited 359 patients with fixed luminal stenosis ≥50% in at least one coronary artery (CAD group) and 83 patients with luminal stenosis ≤40%, normal ejection fraction, and normal regional wall motion (control group). Plasma Hp concentrations were measured using a phenotype-specific enzyme-linked immunosorbent assay. Hp phenotype was determined by native polyacrylamide gel electrophoresis. Plasma lipid concentrations were measured. Plasma Hp concentrations were significantly higher in the CAD compared with the control group (262.4±144.2 vs 176.0±86.7 ng/mL, P<0.001); however, there was no between group difference in the distribution of Hp phenotype (1-1 = 7.5% vs 7.2%; 2-1 = 40.4% vs 42.2%; 2-2 = 52.1% vs 50.6%). Stepwise multivariate logistic regression revealed that high Hp concentrations (odds ratio [OR] = 5.865), male sex (OR = 3.689), hypertension (OR = 2.632), diabetes mellitus (OR = 3.300), and low-density lipoprotein concentrations (OR = 1.480) were independently associated with CAD (all P<0.05). Hp phenotype was not associated with CAD. Plasma Hp concentrations were significantly correlated with the severity of luminal stenosis (r = 0.236, P<0.001). Our findings suggest that plasma Hp concentrations may be elevated in patients with CAD. There does not appear to be any relationship between Hp phenotype and CAD.
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Affiliation(s)
- Chin-Wei Lee
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Tao-Yuan Branch, Tao-Yuan, Taiwan, ROC
| | - Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology, Taipei Medical University, Taipei, Taiwan, ROC
| | - Chih-Pei Lin
- Biochemistry Section, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Biotechnology in Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- * E-mail:
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25
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Chu HL, Cheng TM, Chen HW, Chou FH, Chang YC, Lin HY, Liu SY, Liang YC, Hsu MH, Wu DS, Li HY, Ho LP, Wu PC, Chen FR, Chen GS, Shieh DB, Chang CS, Su CH, Yao Z, Chang CC. Synthesis of apolipoprotein B lipoparticles to deliver hydrophobic/amphiphilic materials. ACS Appl Mater Interfaces 2013; 5:7509-16. [PMID: 23834261 PMCID: PMC3744920 DOI: 10.1021/am401808e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 07/08/2013] [Indexed: 05/23/2023]
Abstract
To develop a drug delivery system (DDS), it is critical to address challenging tasks such as the delivery of hydrophobic and amphiphilic compounds, cell uptake, and the metabolic fate of the drug delivery carrier. Low-density lipoprotein (LDL) has been acknowledged as the human serum transporter of natively abundant lipoparticles such as cholesterol, triacylglycerides, and lipids. Apolipoprotein B (apo B) is the only protein contained in LDL, and possesses a binding moiety for the LDL receptor that can be internalized and degraded naturally by the cell. Therefore, synthetic/reconstituting apoB lipoparticle (rABL) could be an excellent delivery carrier for hydrophobic or amphiphilic materials. Here, we synthesized rABL in vitro, using full-length apoB through a five-step solvent exchange method, and addressed its potential as a DDS. Our rABL exhibited good biocompatibility when evaluated with cytotoxicity and cell metabolic response assays, and was stable during storage in phosphate-buffered saline at 4 °C for several months. Furthermore, hydrophobic superparamagnetic iron oxide nanoparticles (SPIONPs) and the anticancer drug M4N (tetra-O-methyl nordihydroguaiaretic acid), used as an imaging enhancer and lipophilic drug model, respectively, were incorporated into the rABL, leading to the formation of SPIONPs- and M4N- containing rABL (SPIO@rABL and M4N@rABL, respectively). Fourier transform infrared spectroscopy suggested that rABL has a similar composition to that of LDL, and successfully incorporated SPIONPs or M4N. SPIO@rABL presented significant hepatic contrast enhancement in T2-weighted magnetic resonance imaging in BALB/c mice, suggesting its potential application as a medical imaging contrast agent. M4N@rABL could reduce the viability of the cancer cell line A549. Interestingly, we developed solution-phase high-resolution transmission electron microscopy to observe both LDL and SPIO@rABL in the liquid state. In summary, our LDL-based DDS, rABL, has significant potential as a novel DDS for hydrophobic and amphiphilic materials, with good cell internalization properties and metabolicity.
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Affiliation(s)
- Hsueh-Liang Chu
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
| | - Tsai-Mu Cheng
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
- Graduate Institute of Translational
Medicine, College of Medicine and Technology, Taipei
Medical University, Taipei 11031, Taiwan
| | - Hung-Wei Chen
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
| | - Fu-Hsuan Chou
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
- Department of Materials Science
and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yu-Chuan Chang
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
| | - Hsin-Yu Lin
- Department
of Engineering and System Science and Nuclear Science and Technology Development
Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Shih-Yi Liu
- Department
of Engineering and System Science and Nuclear Science and Technology Development
Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yu-Chuan Liang
- Agricultural
Biotechnology Research Center and Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Ming-Hua Hsu
- Department
of Engineering and System Science and Nuclear Science and Technology Development
Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Dian-Shyeu Wu
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
| | - Hsing-Yuan Li
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
| | - Li-Ping Ho
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
| | - Ping-Ching Wu
- Institute of Oral Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Fu-Rong Chen
- Department
of Engineering and System Science and Nuclear Science and Technology Development
Center, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Gong-Shen Chen
- Department of Hematology, Mackay Memorial Hospital, Taipei 10449, Taiwan
| | - Dar-Bin Shieh
- Institute of Oral Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chia-Seng Chang
- Agricultural
Biotechnology Research Center and Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
| | - Chia-Hao Su
- Center for Translational Research
in Biomedical Sciences, Kaohsiung Chang Gung Memorial
Hospital, Kaohsiung 83342, Taiwan
| | - Zemin Yao
- Department of Biochemistry,
Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada K1H 8M5
| | - Chia-Ching Chang
- Department
of Biological Science
and Technology, National Chiao Tung University, Hsinchu 30050, Taiwan
- Agricultural
Biotechnology Research Center and Institute of Physics, Academia Sinica, Nankang, Taipei 11529, Taiwan
- E-mail: . Tel: 886-3-5731633. Fax: 886-3-5733259
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Li HY, Tseng SH, Cheng TM, Chu HL, Lu YN, Wang FY, Tsai LY, Shieh JY, Yang JY, Juan CC, Tu LC, Chang CC. Rapid and highly sensitive detection of Enterovirus 71 by using nanogold-enhanced electrochemical impedance spectroscopy. Nanotechnology 2013; 24:285102. [PMID: 23787733 DOI: 10.1088/0957-4484/24/28/285102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Enterovirus 71 (EV71) infection is an emerging infectious disease causing neurological complications and/or death within two to three days after the development of fever and rash. A low viral titre in clinical specimens makes the detection of EV71 difficult. Conventional approaches for detecting EV71 are time consuming, poorly sensitive, or complicated, and cannot be used effectively for clinical diagnosis. Furthermore, EV71 and Coxsackie virus A16 (CA16) may cross react in conventional assays. Therefore, a rapid, highly sensitive, specific, and user-friendly test is needed. We developed an EV71-specific nanogold-modified working electrode for electrochemical impedance spectroscopy in the detection of EV71. Our results show that EV71 can be distinguished from CA16, Herpes simplex virus, and lysozyme, with the modified nanogold electrode being able to detect EV71 in concentrations as low as 1 copy number/50 μl reaction volume, and the duration between sample preparation and detection being 11 min. This detection platform may have the potential for use in point-of-care diagnostics.
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Affiliation(s)
- Hsing-Yuan Li
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan
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Chu HL, Cheng TM, Li HY, Chang CC. Folding and Characterization of Intrinsically Disordered Protein Human Cyclin I (Ccni). Biophys J 2012. [DOI: 10.1016/j.bpj.2011.11.3454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Cheng TM, Lee TC, Tseng SH, Chu HL, Pan JP, Chang CC. Human haptoglobin phenotypes and concentration determination by nanogold-enhanced electrochemical impedance spectroscopy. Nanotechnology 2011; 22:245105. [PMID: 21543834 DOI: 10.1088/0957-4484/22/24/245105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Haptoglobin (Hp) is an acute phase protein that binds free hemoglobin (Hb), preventing Hb-induced oxidative damage in the vascular system. There are three phenotypes in human Hp, whose heterogeneous polymorphic structures and varying concentrations in plasma have been attributed to the cause of diseases and outcome of clinical treatments. Different phenotypes of Hp may be composed of the same subunits but different copy numbers, rendering their determination difficult by a single procedure. In this study, we have developed a simple, fast, reliable and sensitive method, using label-free nanogold-modified bioprobes coupled with self-development electrochemical impedance spectroscopy (EIS). By this method, probe surface charge transfer resistance is detected. The relative charge transfer resistance ratios for Hp 1-1, Hp 2-1 and Hp 2-2 were characterized. We were able to determine protein size difference within 3 nm, and the linear region of the calibration curve for Hp levels in the range of 90 pg ml(-1) and 90 µg ml(-1) (∼1 fM to 1 pM). We surmise that similar approaches can be used to investigate protein polymorphism and altered protein-protein interaction associated with diseases.
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Affiliation(s)
- Tsai-Mu Cheng
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, Republic of China
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Pan JP, Cheng TM, Shih CC, Chiang SC, Chou SC, Mao SJ, Lai ST. Haptoglobin phenotypes and plasma haptoglobin levels in patients with abdominal aortic aneurysm. J Vasc Surg 2011; 53:1189-94. [DOI: 10.1016/j.jvs.2010.10.122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 10/26/2010] [Accepted: 10/27/2010] [Indexed: 12/28/2022]
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Tseng SH, JangJian PC, Tsai CM, Cheng TM, Chu HL, Chang YC, Chung WH, Chang CC. Ni2+-enhanced charge transport via π-π stacking corridor in metallic DNA. Biophys J 2011; 100:1042-8. [PMID: 21320449 DOI: 10.1016/j.bpj.2011.01.005] [Citation(s) in RCA: 12] [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: 07/19/2010] [Revised: 11/29/2010] [Accepted: 01/03/2011] [Indexed: 11/26/2022] Open
Abstract
The mechanism underlying DNA charge transport is intriguing. However, poor conductivity of DNA makes it difficult to detect DNA charge transport. Metallic DNA (M-DNA) has better conducting properties than native DNA. Ni(2+) may chelate in DNA and thus enhance DNA conductivity. On the basis of this finding, it is possible to reveal the mechanisms underlying DNA charge transport. The conductivity of various Ni-DNA species such as single-stranded, full complement, or mismatched sequence molecules was systematically tested with ultraviolet absorption and electrical or chemical methods. The results showed that the conductivity of single-stranded Ni-DNA (Ni-ssDNA) was similar to that of a native DNA duplex. Moreover, the resistance of Ni-DNA with a single basepair mismatch was significantly higher than that of fully complementary Ni-DNA duplexes. The resistance also increased exponentially as the number of mismatched basepairs increased linearly after the tunneling current behavior predicted by the Simmons model. In conclusion, the charges in Ni(2+)-doped DNA are transported through the Ni(2+)-mediated π-π stacking corridor. Furthermore, Ni-DNA acts as a conducting wire and exhibits a tunneling barrier when basepair mismatches occur. This property may be useful in detecting single basepair mismatches.
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Affiliation(s)
- Shin-Hua Tseng
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan Republic of China
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Chang CC, Tseng SH, JangJian PC, Tsai CM, Cheng TM, Chu HL. Ni2+ Enhanced Charge Transport via Pi Pi Stacking Corridor in Metallic DNA. Biophys J 2011. [DOI: 10.1016/j.bpj.2010.12.2769] [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: 11/29/2022] Open
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32
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Chu HL, Cheng TM, Chang YC, Chen HW, Chung WH, Chang CC. Apolipoprotein B Reconstruction at Single Molecular Level. Biophys J 2011. [DOI: 10.1016/j.bpj.2010.12.3162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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33
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Cheng TM, Mao SJT, Lai ST, Chang CC, Yang MC, Chen NC, Chou SC, Pan JP. Haemoglobin-induced oxidative stress is associated with both endogenous peroxidase activity and H2O2 generation from polyunsaturated fatty acids. Free Radic Res 2010; 45:303-16. [PMID: 21034361 DOI: 10.3109/10715762.2010.532492] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Patients with increased haemolytic haemoglobin (Hb) have 10-20-times greater incidence of cardiovascular mortality. The objective of this study was to evaluate the role of Hb peroxidase activity in LDL oxidation. The role of Hb in lipid peroxidation, H(2)O(2) generation and intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) was assessed using NaN(3), a peroxidase inhibitor, catalase, a H(2)O(2) decomposing enzyme and human umbilical vein endothelial cells (HUVECs), respectively. Hb induced H(2)O(2) production by reacting with LDL, linoleate and cell membrane lipid extracts. Hb-induced LDL oxidation was inhibited by NaN(3) and catalase. Furthermore, Hb stimulated ICAM-1 and VCAM-1 expression, which was inhibited by the antioxidant, probucol. Thus, the present study suggests that the peroxidase activity of Hb produces atherogenic, oxidized LDL and oxidized polyunsaturated fatty acids (PUFAs) in the cell membrane and reactive oxygen species (ROS) formation mediated Hb-induced ICAM-1 and VCAM-1 expression.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, ROC
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Gold MH, Cheng TM, Mayfield MB. Isolation and Complementation Studies of Auxotrophic Mutants of the Lignin-Degrading Basidiomycete Phanerochaete chrysosporium. Appl Environ Microbiol 2010; 44:996-1000. [PMID: 16346124 PMCID: PMC242130 DOI: 10.1128/aem.44.4.996-1000.1982] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A variety of auxotrophic strains of Phanerochaete chrysosporium were isolated after treatment of conidia with UV and X rays. Complementation studies with these strains demonstrated heterokaryotic mycelia and conidia in this organism. Nuclear staining also showed that conidia can be mono-, di-, or multinucleate. Complementation tests allowed the separation of each auxotrophic class with the same phenotype into complementation groups.
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Affiliation(s)
- M H Gold
- Department of Chemistry and Biochemical Sciences, The Oregon Graduate Center, Beaverton, Oregon 97006
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Gold MH, Cheng TM, Alic M. Formation, Fusion, and Regeneration of Protoplasts from Wild-Type and Auxotrophic Strains of the White Rot Basidiomycete Phanerochaete chrysosporium. Appl Environ Microbiol 2010; 46:260-3. [PMID: 16346345 PMCID: PMC239297 DOI: 10.1128/aem.46.1.260-263.1983] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A preparation of two commercial enzymes was used to liberate protoplasts from 16-h-old mycelium of Phanerochaete chrysosporium. Regeneration frequencies of up to 5% were attained when the protoplasts were plated in a medium containing 10% sorbose and 3% agar. Fusion of protoplasts from different auxotrophic strains in polyethylene glycol-Ca produced heterokaryons. Separation of the heterokaryons into their constituent homokaryotic strains could be effected through protoplast release and formation of colonies on regeneration agar.
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Affiliation(s)
- M H Gold
- Department of Chemistry and Biochemical Sciences, Oregon Graduate Center, Beaverton, Oregon 97006
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Sun RS, Chen XH, Sui JF, Liu RQ, Cheng TM, Ran XZ, Yang T. Detecting anti-FcepsilonRI autoantibodies in patients with asthma by flow cytometry. J Int Med Res 2009; 36:1214-9. [PMID: 19094429 DOI: 10.1177/147323000803600607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Autoimmune diseases have been implicated in the development of intrinsic asthma, however little data are available on the role of autoimmunity in the pathogenesis of asthma. The purpose of this study was to investigate circulating autoantibodies against the high-affinity receptor for immunoglobulin E, FcepsilonRI, in patients with asthma. Seventy-eight patients with asthma and 32 healthy control subjects were included. All individuals were tested using a triple-staining flow cytometry-based basophil activation test (BAT) for the potential presence of autoantibodies against FcepsilonRI. Of the 78 asthma patients, 29 (37.2%) had a positive BAT result, indicating that their serum was able to activate basophils, compared with only four (12.5%) of the control group, a statistically significant between-group difference. These data suggest that some asthma patients have aberrant anti-FcepsilonRI autoantibodies, which implies that autoimmunity may be one factor involved in the pathogenesis of intrinsic asthma.
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Affiliation(s)
- R S Sun
- Department of Dermatology, Institute of Battle Surgery, Daping Hospital, Third Military Medical University, Chongqing, China
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Cheng TM, Larsson M, Chiang FH, Chou FH, Mao SJ, Chang CC. Unique Assembly Structure Of Human Haptoglobin Phenotypes 1-1, 2-1, And 2-2 And A Predominant Hp1 Allele Hypothesis. Biophys J 2009. [DOI: 10.1016/j.bpj.2008.12.3066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Cheng TM, Pan JP, Lai ST, Kao LP, Lin HH, Mao SJT. Immunochemical property of human haptoglobin phenotypes: determination of plasma haptoglobin using type-matched standards. Clin Biochem 2007; 40:1045-56. [PMID: 17583688 DOI: 10.1016/j.clinbiochem.2007.04.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2006] [Revised: 04/02/2007] [Accepted: 04/10/2007] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Haptoglobin (Hp) phenotypes 1-1, 2-1, and 2-2 are associated with inflammatory diseases. Since their biochemical structures are rather heterogeneous, it is necessary to accurately determine the plasma Hp levels. DESIGN AND METHODS Immunodiffusion, immunoturbidimetric, and noncompetitive ELISA were conducted to determine the differences in immunoreactivity among Hp phenotypes and to verify that such difference may significantly affect the outcome of Hp determinations. A novel ELISA using phenotype-matched calibrators was performed to compared with a commercial GenWay ELISA kit using a single calibrator in normal healthy males. RESULTS In immunodiffusion and immunoturbidimetric assays, the immunoreactivity of Hp 1-1 was markedly higher than 2-1 and 2-2, while an opposite result was observed using an ELISA. The latter was primarily due to the repeated antigenic epitopes in polymeric 2-1 and 2-2. Thus, Hp levels could be significantly over- or underestimated depending on the method. An accurate ELISA could be achieved when using each type-specific Hp calibrator matched to each type subject. We show the mean levels of Hp 1-1 subjects (n=16; 184+/-42 mg/dL) to be significantly and differentially greater than 2-1 (n=28; 153+/-55 mg/dL) (p<0.05) and 2-2 (n=24; 93+/-54 mg/dL) (p<0.01) subjects. CONCLUSIONS Due to the diverse immunochemical structure among the Hp types, phenotyping should be performed in all the patients and a type-matched Hp calibrator should be used in clinical Hp determination.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan, ROC
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Cheng TM, Huang PC, Pan JP, Lin KY, Mao SJT. Gel electrophoresis of polyphenol oxidase with instant identification by in situ blotting. J Chromatogr B Analyt Technol Biomed Life Sci 2006; 849:331-6. [PMID: 16973425 DOI: 10.1016/j.jchromb.2006.08.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Revised: 08/19/2006] [Accepted: 08/21/2006] [Indexed: 10/24/2022]
Abstract
Polyphenol oxidase (PPO) or tyrosinase is an important and ubiquitous enzyme responsible for browning in plants and melanization in animals. The molecular size of the plant PPO is varied among the species and its activity can be enhanced by a variety of anionic detergents. In the present study, we developed a simple method for the first-step identification of PPO in fruit and vegetable extracts. First, 3mm chromatographic paper was immersed in 0.5% (w/v) catechol solution as an immobilized PPO substrate. After running the extract with 10% sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE), one side of the glass plate was removed. The plate was immediately laid on top of the dried catechol-paper. A dark-brown band corresponding to PPO was visualized within 1 min and was further confirmed by a conventional Western blot using an antibody prepared against mushroom PPO. It also reveals that some vegetation (such as tomato, radish, and oriental melon) with low or no detectable activity in a conventional enzyme assay actually possessed marked levels of PPO activity when assessed by PAGE-blot. We propose that an inhibitor is associated with PPO in some plants; the inhibitor, however, is dissociated during the electrophoresis. Therefore, in addition to identify the molecular form of PPO, the present technique may explore the existence of PPO inhibitor(s) in plants. The detail of the method with respect to its relevance for searching a natural PPO inhibitor is described and discussed.
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Affiliation(s)
- Tsai-Mu Cheng
- College of Biological Science and Technology, National Chiao Tung University, 75 Po-Ai Street, Hsinchu, Taiwan, ROC
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Chi SC, Wu YC, Cheng TM. Persistent infection of betanodavirus in a novel cell line derived from the brain tissue of barramundi Lates calcarifer. Dis Aquat Organ 2005; 65:91-8. [PMID: 16060261 DOI: 10.3354/dao065091] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
In order to obtain an in vitro system for studying the mechanism of persistent infection of fish nodavirus, a novel cell line (BB) was established from the brain tissue of a barramundi, Lates calcarifer, which had survived viral nervous necrosis disease. The cell line has been subcultured > 100 times. The persistence of fish nodavirus designated as barramundi brain nervous necrosis virus (BBNNV) in the BB cells was demonstrated by: (1) the detection of the infectious virus in the culture supernatants, (2) the detection of NNV nucleic acids extracted from the BB cells, (3) the positive result of immunochemical staining using an NNV-specific monoclonal antibody and (4) their resistance to infection by another fish nodavirus grouper NNV (GNNV). No temperature-sensitive mutants were detected in the culture supernatant of the BB cells. Neither truncated genome (RNA1 or RNA2) nor smaller coat protein was found in the purified BBNNV particles, suggesting that defective interfering particles were unlikely to be important in the NNV-persistent infection in the BB cells. The result of the neutralization test indicated that the 5 antigenic determinants, recognized by GNNV-specific neutralizing antibodies, also existed on the coat protein of BBNNV. The BB cell line is the first cell line reported to be persistently infected with NNV, and would be a useful model for understanding the mechanisms of NNV-persistent infection in vitro and in vivo.
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Affiliation(s)
- S C Chi
- Department of Life Science, Institute of Zoology, National Taiwan University, 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan.
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Pan JP, Cheng TM, Chou SC, Lai ST. Vitamin C protects against lysophosphatidylcholine-induced expression of monocyte chemoattractant protein-1 in cultured human umbilical vein endothelial cells. J Formos Med Assoc 2003; 102:151-7. [PMID: 12783131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND AND PURPOSE It is well documented that oxidized low-density lipoproteins (LDLs) can stimulate human vascular endothelial cells to produce monocyte chemoattractant protein-1 (MCP-1). Vitamin C is known to be an important antioxidant for vasodilatation. The purpose of this study was to determine whether pretreatment with vitamin C could protect against oxidized-LDL-induced expression of MCP-1 in cultured human umbilical vein endothelial cells (HUVECs). METHODS Cultured HUVECs were used for desired experiments before passage 4. Lysophosphatidylcholine (lysoPC), an oxidized component of LDL, was designated as the stimulator for MCP-1 synthesis from cultured HUVECs. MCP-1 concentrations in the cultured media were determined by enzyme-linked immunosorbent assay. MCP-1 RNA was evaluated by a semi-quantitative reverse transcriptase-polymerase chain reaction. RESULTS HUVECs secreted MCP-1 within 30 minutes after exposure to 50 microM lysoPC. Compared with samples treated with lysoPC alone, pretreatment with vitamin C in concentrations of 50, 100, 150, and 200 microM, reduced levels of MCP-1 in the culture medium by 44%, 51%, 60%, and 67%, respectively, while levels of MCP-1 mRNA decreased by 15%, 18%, 80%, and 82%, respectively. CONCLUSIONS Our findings imply that pretreatment with vitamin C can suppress lysoPC-induced expression and secretion of MCP-1 in cultured HUVECs. Therefore, vitamin C is protective against lysoPC-mediated inflammatory insults to the vascular endothelium in vitro.
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Affiliation(s)
- Ju-Pin Pan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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Abstract
Interference of the life cycle of grouper nervous necrosis virus (GNNV), a member of the Nodaviridae, genus Betanodavirus, by snakehead retrovirus (SnRV) has been studied in vitro. SGF-1, a new fish cell line that is persistently infected with SnRV, was induced by inoculating SnRV into the grouper fin cell line GF-1. Culture supernatants and cell pellets from both GNNV-infected SGF-1 and GF-1 cells were collected and employed for virus productivity analysis. The yields of GNNV RNA and capsid protein in GNNV-infected SGF-1 cells were similar to those in GNNV-infected GF-1 cells. However, when GF-1 cells were used for titration, the titre of the culture supernatant from GNNV-infected SGF-1 cells was much higher than that from GNNV-infected GF-1 cells. The titration result suggested that SnRV enhanced the infection or cytopathic effect (CPE) of GNNV during GNNV and SnRV coinfection of the GF-1 cell titration system, although SnRV cannot induce any CPE in GF-1 cells alone, nor can it increase the yield of GNNV after GNNV superinfection of SGF-1 cells. Moreover, GNNV cDNA was detected in both the pellet and the supernatant from GNNV-infected SGF-1 cells. This result indicated that SnRV reverse-transcribed the GNNV single-stranded genomic RNA into cDNA during GNNV superinfection of SGF-1 cells and created a new cDNA stage in the life cycle of the fish nodavirus.
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Affiliation(s)
- K W Lee
- Department of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China1
| | - S C Chi
- Department of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China1
| | - T M Cheng
- Department of Zoology, National Taiwan University, Taipei, Taiwan, Republic of China1
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Zhang QY, Wang XY, Ying HP, Cheng TM, Zhao YY. [Studies on the chemical constituents of Carduus crispus L]. Zhongguo Zhong Yao Za Zhi 2001; 26:837-9. [PMID: 12776331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVE To study the chemical constituents of Carduus crispus. METHOD Using chromatographic methods to isolate compounds and using chemical and spectral methods to elucidate the structures of the isolated compounds. RESULT Eight compounds were elucidated as beta-amyrin palmitate, taraxastery acetate, luteolin-7-O-alpha-L-rhamanopyranosyl-(1-->2)-beta-D-glucopyranoside, luteolin-7-O-beta-D-glucopyranoside, triacontanic acid, beta-sitosterol, stigmasterol and stigmast-7-en-3 beta-ol. CONCLUSION All the compounds were obtained from this plant for the first time.
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Affiliation(s)
- Q Y Zhang
- School of Pharmaceutical Sciences, Peking University, Beijing 100083, China
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Liu DH, Su YP, Zhang W, Lou SF, Gao JS, Cheng TM. [Changes in aldosterone binding activity of kidney cytosol after stress in rats and the regulation]. Sheng Li Xue Bao 2001; 53:375-9. [PMID: 11833422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
To observe the changes in aldosterone binding activity of kidney cytosols after pathological stress in rats and the regulation, binding capacity (Rt) and apparent dissociation constant (Kd) of aldosterone binding activity of kidney cytosols in normal, low-degree or heavy-degree scalded rats were measured by radioligand binding assay using [3H]aldosterone as the ligand. Changes in Rt and Kd of aldosterone binding activity were observed after injection of anti-rat TNF alpha and IL-1 beta antibodies, alpha-melanocyte-stimulating hormone (alpha-MSH) and KPV peptide (Ac-D-Lys-L-Pro-D-Val). The results indicated that there were two types of aldosterone binding activities in kidney cytosol with different Rt and Kd, and the Rt of heavy-degree scalded rats (Rt1: 22.4 +/- 5.4 fmol/mg pro, Rt2: 196.3 +/- 32.5 fmol/mg pro) was lower than that of the control group (Rt1: 41.6 +/- 7.2 fmol/mg pro, Rt2: 317.6 +/- 70.0 fmol/mg pro) (P < 0.01; P < 0.01); while the Rt of low-degree scalded rats (Rt1: 41.4 +/- 5.0 fmol/mg pro, Rt2: 314.8 +/- 45.7 fmol/mg pro) was not significantly different from that of the control group (P > 0.05; P > 0.05). Injection of anti-rat TNF alpha and IL-1 beta antibodies, alpha-MSH and KPV prevented Rt of aldosterone binding activity from decrease in kidney cytosol of rats with heavy-degree scald. These findings suggest that aldosterone binding activity may be down-regulated in heavy-degree scalded rats, but it may be reversed by injection of anti-rat TNF alpha and IL-1 beta antibodies, alpha-MSH and KPV.
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Affiliation(s)
- D H Liu
- Institute of Combined Injury, Third Military Medical University, Chongqing 400038.
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Abstract
A series of diquaternary dipiperazinium salts containing dithiocarboxyl groups 6a-f and 9 were synthesized and evaluated for their analgesic and sedative activities. The result showed that the presence of two quaternary ammonium cations and the distance between them are very important for the activities of the salts. Compound 6b exhibited the best activities (at dose 2 mg/kg, analgesic, 57%; sedative, 59%) among compounds 6a-f. Compound 9 not only showed the most potent analgesic (85.4%, dose 1 mg/kg) and sedative (93.1%, dose 1 mg/kg) activities, but also exhibited anticancer activity against KB (68.7%, dose 10 microM).
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Affiliation(s)
- Z M Ge
- School of Pharmaceutical Sciences, Peking University, Beijing, 100083, P.R. China
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46
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Guo BG, Ge ZM, Cheng TM, Li RT. [Synthesis and anti-tumor activities of 1,4-bis[3-(amino-dithiocarboxy)propionyl] piperazine derivatives]. Yao Xue Xue Bao 2001; 36:185-7. [PMID: 12580084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To synthesize piperazine derivatives and screen anti-tumor compounds with higher activity and lower toxicity. METHODS Selecting 1,4-bis(3-bromopropionyl)piperazine as leading compound, a series of 1,4-bis[3-(amino-dithiocarboxy)propionyl] piperazine derivatives (4a-j) were synthesized through the use of aminodithiocarboxylate. All the synthetic compounds (4a-j) were tested for their anti-tumor activity against eight kinds of tumor cells. RESULTS Compounds (4a-j) are new compounds, among them, compounds 4c, 4d and 4e showed anti-tumor activity against HL-60. The inhibition of compounds 4c, 4d and 4e against HL-60 are 44%, 90% and 70% respectively, at the concentration of 10 mumol.L-1. However, the inhibition of the other kinds of anti-tumor cells are not distinctive. CONCLUSION These results suggest that this may be one of the effective routes to improve the anti-tumor activity and reduce the toxicity of 1,4-bis(3-bromopropionyl)piperazine.
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Affiliation(s)
- B G Guo
- School of Pharmaceutical Sciences, Beijing University, Beijing 100083, China
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Ran XZ, Su YP, Wei YJ, Ai GP, Cheng TM, Lin Y. Influencing factors of rat small intestinal epithelial cell cultivation and effects of radiation on cell proliferation. World J Gastroenterol 2001; 7:140-2. [PMID: 11819751 PMCID: PMC4688692 DOI: 10.3748/wjg.v7.i1.140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- X Z Ran
- Institute of Combined Injury, PLA School of Preventive Medicine, Third Military Medical University, Chongqing 400038, China.
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Cheng J, Zhao YY, Cui YX, Cheng TM. [Studies on flavonoids from leave of Eucommia ulmoides Oliv]. Zhongguo Zhong Yao Za Zhi 2000; 25:284-6. [PMID: 12512449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To separate the constituents from Eucommia ulmoides. METHOD The constituents were separated by the repeated chromatography and identified by spectral methods. RESULT The seven compounds were obtained, which were kaempferol(1), quercetin(2), astragalin(3), hirsutin(4), rutin(5), 3,4-dihydrobenzonic acid(6), ethyl glucopyranoside(7). CONCLUSION Compounds 3-7 were obtained from leaves of E. ulmoides for the first time.
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Affiliation(s)
- J Cheng
- School of Pharmaceutical Sciences, Beijing Medical University, Beijing 100083, China
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Zhang QY, Zhao YY, Liu XH, Zhang NX, Cui YX, Cheng TM. [Studies on chemical constituents of Stelmatocrypton khasianum (Benth.) H. Bail]. Zhongguo Zhong Yao Za Zhi 2000; 25:101-3. [PMID: 12212068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVE To study the chemical constituents of Stelmatocrypton khasinum. METHOD Using chromatographic methods to isolate compounds from S. khasinum and chemical and spectral methods to elucidate their structures. RESULT Eight compounds, cleomiscosin A(1), 4-methoxy salicylicaldehyde(2), vanillin(3), isovanillin(4), 4-methoxy salicylic acid(5), isovanillic acid(6), 2,4-dihydroxy-benzoic acid(7) and 4-hydroxy-benzoic acid(8) were isolated from the stem of S. khasianum. CONCLUSION Except compound 2, all the compounds were obtained from this plant for the first time.
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Affiliation(s)
- Q Y Zhang
- School of Pharmaceutical Sciences, Beijing Medical University, Beijing 100083, China
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Abstract
A new triterpenoid, 2alpha-,3beta,-,19alpha-trihydroxy-urs-12-ene-24,28-dioic acid (1), along with two known compounds. 3beta-acetoxy-urs-12-ene-11-one (2) and vomifoliol (3), was isolated from stems of Stelmatocryprton khasianum for the first time. Their structures were elucidated on the basis of chemical and spectroscopic methods.
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Affiliation(s)
- Q Y Zhang
- School of Pharmaceutical Sciences, Beijing Medical University, China
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