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Meli V, Rowley AT, Veerasubramanian PK, Heedy SE, Liu WF, Wang SW. Modulation of Stiffness-Dependent Macrophage Inflammatory Responses by Collagen Deposition. ACS Biomater Sci Eng 2024; 10:2212-2223. [PMID: 38467019 PMCID: PMC11005009 DOI: 10.1021/acsbiomaterials.3c01892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/13/2024]
Abstract
Macrophages are innate immune cells that interact with complex extracellular matrix environments, which have varied stiffness, composition, and structure, and such interactions can lead to the modulation of cellular activity. Collagen is often used in the culture of immune cells, but the effects of substrate functionalization conditions are not typically considered. Here, we show that the solvent system used to attach collagen onto a hydrogel surface affects its surface distribution and organization, and this can modulate the responses of macrophages subsequently cultured on these surfaces in terms of their inflammatory activation and expression of adhesion and mechanosensitive molecules. Collagen was solubilized in either acetic acid (Col-AA) or N-(2-hydroxyethyl)piperazine-N'-ethanesulfonic acid (HEPES) (Col-HEP) solutions and conjugated onto soft and stiff polyacrylamide (PA) hydrogel surfaces. Bone marrow-derived macrophages cultured under standard conditions (pH 7.4) on the Col-HEP-derived surfaces exhibited stiffness-dependent inflammatory activation; in contrast, the macrophages cultured on Col-AA-derived surfaces expressed high levels of inflammatory cytokines and genes, irrespective of the hydrogel stiffness. Among the collagen receptors that were examined, leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) was the most highly expressed, and knockdown of the Lair-1 gene enhanced the secretion of inflammatory cytokines. We found that the collagen distribution was more homogeneous on Col-AA surfaces but formed aggregates on Col-HEP surfaces. The macrophages cultured on Col-AA PA hydrogels were more evenly spread, expressed higher levels of vinculin, and exerted higher traction forces compared to those of cells on Col-HEP. These macrophages on Col-AA also had higher nuclear-to-cytoplasmic ratios of yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), key molecules that control inflammation and sense substrate stiffness. Our results highlight that seemingly slight variations in substrate deposition for immunobiology studies can alter critical immune responses, and this is important to elucidate in the broader context of immunomodulatory biomaterial design.
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Affiliation(s)
- Vijaykumar
S. Meli
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- UCI
Edwards Lifesciences Foundation Cardiovascular Innovation and Research
Center, University of California Irvine, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Andrew T. Rowley
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Praveen K. Veerasubramanian
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- UCI
Edwards Lifesciences Foundation Cardiovascular Innovation and Research
Center, University of California Irvine, Irvine, California 92697, United States
| | - Sara E. Heedy
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
| | - Wendy F. Liu
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- UCI
Edwards Lifesciences Foundation Cardiovascular Innovation and Research
Center, University of California Irvine, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
- Department
of Molecular Biology and Biochemistry, University
of California Irvine, Irvine, California 92697, United States
- Institute
for Immunology, University of California
Irvine, Irvine, California 92697, United States
| | - Szu-Wen Wang
- Department
of Biomedical Engineering, University of
California Irvine, Irvine, California 92697, United States
- Department
of Chemical and Biomolecular Engineering, University of California Irvine, Irvine, California 92697, United States
- Institute
for Immunology, University of California
Irvine, Irvine, California 92697, United States
- Chao Family
Comprehensive Cancer Center, University
of California Irvine, Irvine, California 92697, United States
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2
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Huang XX, Du SS, Li AQ, Li C, Tian TT, Liu TZ, Wang Q, Liang MF, Wang SW, Li JD, Li DX. [Epidemiological characteristics of severe fever with thrombocytopenia syndrome in China, 2018-2021]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:112-116. [PMID: 38228532 DOI: 10.3760/cma.j.cn112338-20230504-00274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Objective: To understand the epidemiological characteristics and incidence trend of severe fever with thrombocytopenia syndrome (SFTS) in China. Methods: The incidence data of SFTS in China from 2018 to 2021 were collected from Chinese Disease Prevention and Control Information System for a statistical and descriptive epidemiological analysis by using software such as Excel 2016, Joinpoint 5.0.2, SPSS 26.0, and GraphPad Prism 8.0, especially, the SFTS cases reported monthly by key provinces were analyzed. Results: From 2018 to 2021, a total of 8 835 SFTS cases were reported in 25 provinces and the annual incidence showed an upward trend. The distribution of SFTS cases showed clustering, but the cases were mainly sporadic ones. The cases began to increase in March, mainly occurred during April to October (96.79%,8 551/8 835), and peaked during May to July. The cases were mainly distributed in middle-aged and old farmers, and slight more cases were women. The average case fatality rate was 5.38%, which varied greatly with areas. The case fatality rate tended to increase with age. Conclusion: From 2018 to 2021, the epidemiological characteristics of SFTS in China remained stable, but the number of reported cases gradually increased and the distribution showed an expanding trend, to which close attention should be paid.
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Affiliation(s)
- X X Huang
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S S Du
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - A Q Li
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - C Li
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T T Tian
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T Z Liu
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q Wang
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M F Liang
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S W Wang
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Li
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D X Li
- National Health Commision Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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3
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Wang YB, Wang SW, Jin QY, Chen LP, Zhang FQ, Shi JJ, Yin Y, Fan ZX, Liu XY, Wang LP, Li P. Expression of water-soluble nucleocapsid protein of SARS-CoV-2 and analysis of its immunogenicity. Pol J Vet Sci 2023; 26:571-579. [PMID: 38088301 DOI: 10.24425/pjvs.2023.148277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to be a major public health concern. Nucleocapsid (N) protein is the most abundant structural protein on SARS-CoV-2 virions and induces the production of antibodies at the early stage of infection. Large-scale preparation of N protein is essential for the development of immunoassays to detect antibodies to SARS-CoV-2 and the control of virus transmission. In this study, expression of water-soluble N protein was achieved through inducing protein expression at 25°C with 0.5 mM IPTG for 12 h. Western blot and ELISA showed that recombinant N protein could be recognized by sera collected from subjects immunized with Sinovac inactivated SARS-CoV-2 vaccine. Four monoclonal antibodies namely 2B1B1, 4D3A3, 5G1F8, and 7C6F5 were produced using hybridoma technology. Titers of all four monoclonal antibodies in ELISA reached more than 1.28×10 6.0. Moreover, all monoclonal antibodies could react specifically with N protein expressed by transfection of pcDNA3.1-N into BHK-21 cells in IPMA and IFA. These results indicated that water-soluble N protein retained high immunogenicity and possessed the same epitopes as that of native N protein on virions. In addition, the preparation of water-soluble N protein and its monoclonal antibodies laid the basis for the development of immunoassays for COVID-19 detection.
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Affiliation(s)
- Y B Wang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - S W Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - Q Y Jin
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - L P Chen
- Gushi County Center for Animal Disease Control and Prevention, Xinyang 465200, P.R. China
| | - F Q Zhang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - J J Shi
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - Y Yin
- Mingde College of Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - Z X Fan
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China
| | - X Y Liu
- School of Biological Engineering, Xinxiang University, Xinxiang 453003, P.R. Chin
| | - L P Wang
- School of Biological Engineering, Xinxiang University, Xinxiang 453003, P.R. Chin
| | - P Li
- School of Biological Engineering, Xinxiang University, Xinxiang 453003, P.R. Chin
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4
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Cheng CW, Wu CY, Wang SW, Chen JY, Kung CC, Liao KS, Wong CH. Low-sugar universal mRNA vaccine against coronavirus variants with deletion of glycosites in the S2 or stem of SARS-CoV-2 spike messenger RNA (mRNA). Proc Natl Acad Sci U S A 2023; 120:e2314392120. [PMID: 38011546 DOI: 10.1073/pnas.2314392120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/25/2023] [Indexed: 11/29/2023] Open
Abstract
Since the outbreak of Severe Acute Respiratory Syndrome Virus-2 (SARS-CoV-2) in 2019, more than 15 million spike protein sequences have been identified, raising a new challenge for the development of a broadly protective vaccine against the various emerging variants. We found that the virus, like most other human viruses, depends on host-made glycans to shield the conserved epitopes on spike protein from immune response and demonstrated that deletion of the glycan shields exposed highly conserved epitopes and elicited broadly protective immune responses. In this study, we identified 17 conserved epitopes from 14 million spike protein sequences and 11 of the conserved epitopes are in the S2 domain, including the six most conserved epitopes in the stem region. We also demonstrated that deletion of the glycosites in the spike messenger RNA (mRNA) S2 domain or the stem region exposed the highly conserved epitopes and elicited broadly protective immune responses, particularly CD-8+ T cell response against various SARS-CoV-2 variants, and other human coronaviruses including MERS, SARS viruses, and those causing common cold.
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Affiliation(s)
- Cheng-Wei Cheng
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
- The Master Program of AI Application in Health Industry, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Center for Big Data Research, Kaohsiung Medical University, Kaohsiung City 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung City 80708, Taiwan
| | - Chung-Yi Wu
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
- Rock BioMedical, Inc., Taipei City 115202, Taiwan
| | - Szu-Wen Wang
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
- Rock BioMedical, Inc., Taipei City 115202, Taiwan
| | - Jia-Yan Chen
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
| | - Chih-Chuan Kung
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
| | - Kuo-Shiang Liao
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
| | - Chi-Huey Wong
- Genomics Research Center, Academia Sinica, Taipei City 11529, Taiwan
- Department of Chemistry, Scripps Research, La Jolla, CA 92037
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5
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Ramirez A, Felgner J, Jain A, Jan S, Albin TJ, Badten AJ, Gregory AE, Nakajima R, Jasinskas A, Felgner PL, Burkhardt AM, Davies DH, Wang SW. Engineering Protein Nanoparticles Functionalized with an Immunodominant Coxiella burnetii Antigen to Generate a Q Fever Vaccine. Bioconjug Chem 2023; 34:1653-1666. [PMID: 37682243 PMCID: PMC10515490 DOI: 10.1021/acs.bioconjchem.3c00317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/25/2023] [Indexed: 09/09/2023]
Abstract
Coxiella burnetii is the causative agent of Q fever, for which there is yet to be an FDA-approved vaccine. This bacterial pathogen has both extra- and intracellular stages in its life cycle, and therefore both a cell-mediated (i.e., T lymphocyte) and humoral (i.e., antibody) immune response are necessary for effective eradication of this pathogen. However, most proposed vaccines elicit strong responses to only one mechanism of adaptive immunity, and some can either cause reactogenicity or lack sufficient immunogenicity. In this work, we aim to apply a nanoparticle-based platform toward producing both antibody and T cell immune responses against C. burnetii. We investigated three approaches for conjugation of the immunodominant outer membrane protein antigen (CBU1910) to the E2 nanoparticle to obtain a consistent antigen orientation: direct genetic fusion, high affinity tris-NTA-Ni conjugation to polyhistidine-tagged CBU1910, and the SpyTag/SpyCatcher (ST/SC) system. Overall, we found that the ST/SC approach yielded nanoparticles loaded with the highest number of antigens while maintaining stability, enabling formulations that could simultaneously co-deliver the protein antigen (CBU1910) and adjuvant (CpG1826) on one nanoparticle (CBU1910-CpG-E2). Using protein microarray analyses, we found that after immunization, antigen-bound nanoparticle formulations elicited significantly higher antigen-specific IgG responses than soluble CBU1910 alone and produced more balanced IgG1/IgG2c ratios. Although T cell recall assays from these protein antigen formulations did not show significant increases in antigen-specific IFN-γ production compared to soluble CBU1910 alone, nanoparticles conjugated with a CD4 peptide epitope from CBU1910 generated elevated T cell responses in mice to both the CBU1910 peptide epitope and whole CBU1910 protein. These investigations highlight the feasibility of conjugating antigens to nanoparticles for tuning and improving both humoral- and cell-mediated adaptive immunity against C. burnetii.
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Affiliation(s)
- Aaron Ramirez
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Jiin Felgner
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Aarti Jain
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Sharon Jan
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Tyler J. Albin
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Alexander J. Badten
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Anthony E. Gregory
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Rie Nakajima
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Algimantas Jasinskas
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Philip L. Felgner
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Amanda M. Burkhardt
- Department
of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, California 90089, United States
| | - D. Huw Davies
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Szu-Wen Wang
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, and Institute for Immunology, University of California, Irvine, California 92697, United States
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6
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Wang SW, Ko YA, Chen CY, Liao KS, Chang YH, Lee HY, Yu YH, Lih YH, Cheng YY, Lin HH, Hsu TL, Wu CY, Lin KI, Wong CH. Mechanism of Antigen Presentation and Specificity of Antibody Cross-Reactivity Elicited by an Oligosaccharide-Conjugate Cancer Vaccine. J Am Chem Soc 2023; 145:9840-9849. [PMID: 37089019 PMCID: PMC10161213 DOI: 10.1021/jacs.3c02003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Polysaccharides have been successfully used as immunogens for the development of vaccines against bacterial infection; however, there are no oligosaccharide-based vaccines available to date and no previous studies of their processing and presentation. We reported here the intracellular enzymatic processing and antigen presentation of an oligosaccharide-conjugate cancer vaccine prepared from the glycan of Globo-H (GH), a globo-series glycosphingolipid (GSL). This oligosaccharide-conjugate vaccine was shown to elicit antibodies against the glycan moieties of all three globo-series GSLs that are exclusively expressed on many types of cancer and their stem cells. To understand the specificity and origin of cross-reactivity of the antibodies elicited by the vaccine, we found that the vaccine is first processed by fucosidase 1 in the early endosome of dendritic cells to generate a common glycan antigen of the GSLs along with GH for MHC class II presentation. This work represents the first study of oligosaccharide processing and presentation and is expected to facilitate the design and development of glycoconjugate vaccines based on oligosaccharide antigens.
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Affiliation(s)
- Szu-Wen Wang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-An Ko
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Chiang-Yun Chen
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Kuo-Shiang Liao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yi-Hsuan Chang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
- Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Hsin-Yu Lee
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yueh-Hsiang Yu
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yu-Hsuan Lih
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yang-Yu Cheng
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Heng-Hsin Lin
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Tsui-Ling Hsu
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Chung-Yi Wu
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Kuo-I Lin
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Chi-Huey Wong
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
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7
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Zhou H, Wang SW, Shi JC, Deng J, Shi QS, Lai JM, Xiao GZ, Tong ZY. [Effect of diurnal temperature range on the number of elderly inpatients with ischemic stroke in Hunan Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:528-534. [PMID: 37032163 DOI: 10.3760/cma.j.cn112150-20220620-00629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Objective: To study the effect of diurnal temperature range on the number of elderly inpatients with ischemic stroke in Hunan Province. Method: Demographic and disease data, meteorological data, air quality data, population, economic and health resource data of elderly inpatients with ischemic stroke were collected in 122 districts/counties of Hunan Province from January to December 2019. The relationships between the diurnal temperature range and the number of elderly inpatients with ischemic stroke were analyzed by using the distributed lag non-linear model, including the cumulative lag effect of the diurnal temperature range in different seasons, extremely high diurnal temperature range and extremely low diurnal temperature range. Results: In 2019, 152 875 person-times were admitted to the hospital for ischemic stroke in the elderly in Hunan Province. There was a non-linear relationship between the diurnal temperature range and the number of elderly patients with ischemic stroke, with different lag periods. In spring and winter, with the decrease in diurnal temperature range, the risk of admission of elderly patients with ischemic stroke increased (Ptrend<0.001, Ptrend=0.002);in summer, with the increase in diurnal temperature range, the risk of admission of elderly patients with ischemic stroke increased (Ptrend=0.024);in autumn, the change in the diurnal temperature range would not cause a change in admission risk (Ptrend=0.089). Except that the lag effect of the extremely low diurnal temperature range in autumn was not obvious, the lag effect occurred in other seasons under extremely low and extremely high diurnal temperature ranges. Conclusion: The high diurnal temperature range in summer and the low diurnal temperature range in spring and winter will increase the risk of admission of elderly patients with ischemic stroke, and the risk of admission of elderly patients with ischemic stroke will lag under the extremely low and extremely high diurnal temperature ranges in the above three seasons.
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Affiliation(s)
- H Zhou
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
| | - S W Wang
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
| | - J C Shi
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
| | - J Deng
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
| | - Q S Shi
- Information Statistics Center of Health Commission of Hunan Province, Changsha 410008, China
| | - J M Lai
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
| | - G Z Xiao
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
| | - Z Y Tong
- Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University,Changsha 410078,China
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8
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Cui Y, Wang SW, Zhou B, Han EL, Liu ZF, Wu CH, Mei FY, Lu XF, Chen WK. [Minimally invasive right infra-axillary thoracotomy for transaortic modified Morrow procedure: a series of 60 cases]. Zhonghua Wai Ke Za Zhi 2023; 61:209-213. [PMID: 36650966 DOI: 10.3760/cma.j.cn112139-20221014-00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Objective: To examine the short-term curative effect with minimally invasive right infra-axillary thoracotomy for transaortic modified Morrow procedure. Methods: The clinical data of 60 patients who underwent video-assisted thoracoscopic transaortic modified Morrow procedure from August 2021 to August 2022 at Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital were retrospectively analyzed. There were 31 males and 29 females, with the age (M (IQR)) of 54.0(22.3) years (range: 15 to 71 years). The echocardiography confirmed the diagnosis of moderate mitral regurgitation in 30 patients, and severe mitral regurgitation in 13 patients. Systolic anterior motion (SAM) was present preoperatively in 54 patients. All 60 patients underwent transaortic modified Morrow procedure through a right infra-axillary thoracotomy using femorofemoral cardiopulmonary bypass. Surgical procedures mainly included transverse aortic incision, exposure of left ventricular outflow tract (LVOT), septal myectomy, and correction of the abnormal mitral valve and subvalvular structures. Results: All 60 patients underwent the programmatic procedures successfully without conversion to full sternotomy. The cardiopulmonary bypass time was (142.0±32.1) minutes (range: 89 to 240 minutes), while the cross-clamp time was (95.0±23.5) minutes (range: 50 to 162 minutes). The patients had a postoperative peak LVOT gradient of 7.0 (5.0) mmHg (range: 0 to 38 mmHg) (1 mmHg=0.133 kPa). A total of 57 patients were extubated on the operating table. The drainage volume in the first 24 h was (175.9±57.0) ml (range: 60 to 327 ml). The length of intensive care unit stay was 21.0 (5.8)h (range: 8 to 120 h) and postoperative hospital stay was 8 (5) days (range: 5 to 19 days). The postoperative septal thickness was 11 (2) mm (range: 8 to 14 mm). All patients had no iatrogenic ventricular septal perforation or postoperative residual SAM. The patients were followed up for 4 (9) months (range: 1 to 15 months), and none of them needed cardiac surgery again due to valve dysfunction or increased peak LVOT gradient during follow-up. Conclusion: Using a video-assisted thoracoscopic transaortic modified Morrow procedure through a right infra-axillary minithoracotomy can provide good visualization of the LVOT and hypertrophic ventricular septum, ensure optimal exposure of the mitral valve in the presence of complex mitral subvalvular structures, so that allows satisfactory short-term surgical results.
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Affiliation(s)
- Y Cui
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - S W Wang
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - B Zhou
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - E L Han
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - Z F Liu
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - C H Wu
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - F Y Mei
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - X F Lu
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
| | - W K Chen
- Department of Cardiovascular Surgery, Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), Hangzhou 310014, China
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9
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Badten A, Ramirez A, Hernandez-Davies JE, Albin TJ, Jain A, Nakajima R, Felgner J, Davies DH, Wang SW. Protein Nanoparticle-Mediated Delivery of Recombinant Influenza Hemagglutinin Enhances Immunogenicity and Breadth of the Antibody Response. ACS Infect Dis 2023; 9:239-252. [PMID: 36607269 PMCID: PMC9926493 DOI: 10.1021/acsinfecdis.2c00362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Indexed: 01/07/2023]
Abstract
The vast majority of seasonal influenza vaccines administered each year are derived from virus propagated in eggs using technology that has changed little since the 1930s. The immunogenicity, durability, and breadth of response would likely benefit from a recombinant nanoparticle-based approach. Although the E2 protein nanoparticle (NP) platform has been previously shown to promote effective cell-mediated responses to peptide epitopes, it has not yet been reported to deliver whole protein antigens. In this study, we synthesized a novel maleimido tris-nitrilotriacetic acid (NTA) linker to couple protein hemagglutinin (HA) from H1N1 influenza virus to the E2 NP, and we evaluated the HA-specific antibody responses using protein microarrays. We found that recombinant H1 protein alone is immunogenic in mice but requires two boosts for IgG to be detected and is strongly IgG1 (Th2) polarized. When conjugated to E2 NPs, IgG2c is produced leading to a more balanced Th1/Th2 response. Inclusion of the Toll-like receptor 4 agonist monophosphoryl lipid A (MPLA) significantly enhances the immunogenicity of H1-E2 NPs while retaining the Th1/Th2 balance. Interestingly, broader homo- and heterosubtypic cross-reactivity is also observed for conjugated H1-E2 with MPLA, compared to unconjugated H1 with or without MPLA. These results highlight the potential of an NP-based delivery of HA for tuning the immunogenicity, breadth, and Th1/Th2 balance generated by recombinant HA-based vaccination. Furthermore, the modularity of this protein-protein conjugation strategy may have utility for future vaccine development against other human pathogens.
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Affiliation(s)
- Alexander
J. Badten
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Aaron Ramirez
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Jenny E. Hernandez-Davies
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Tyler J. Albin
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Aarti Jain
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Rie Nakajima
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Jiin Felgner
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - D. Huw Davies
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
| | - Szu-Wen Wang
- Department
of Chemical and Biomolecular Engineering, Vaccine Research and Development
Center, Department of Physiology and Biophysics, Department of Chemistry, Department of Biomedical
Engineering, Chao Family Comprehensive Cancer Center, Institute for Immunology, University of California, Irvine, California 92697, United States
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10
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Butkovich N, Tucker JA, Ramirez A, Li E, Meli VS, Nelson EL, Wang SW. Nanoparticle vaccines can be designed to induce pDC support of mDCs for increased antigen display. Biomater Sci 2023; 11:596-610. [PMID: 36476811 PMCID: PMC10775882 DOI: 10.1039/d2bm01132h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cancer vaccine immunotherapy facilitates the immune system's recognition of tumor-associated antigens, and the biomolecular design of these vaccines using nanoparticles is one important approach towards obtaining strong anti-tumor responses. Following activation of dendritic cells (DCs), a robust CD8+ T cell-mediated adaptive immune response is critical for tumor elimination. While the role of efficient antigen-presenting myeloid DCs (mDCs) is conventionally attributed towards vaccine efficacy, participation by highly cytokine-producing plasmacytoid DCs (pDCs) is less understood and is often overlooked. We examined vaccines based on the E2 protein nanoparticle platform that delivered encapsulated TLR9 agonist bacterial-like DNA (CpG1826 or CpG1018) or TLR7 agonist viral ssRNA to determine their efficacy over free agonists in activating both mDCs and pDCs for antigen presentation. Although mDCs were only activated by nanoparticle-encapsulated TLR9 agonists, pDCs were activated by all the individually tested constructs, and CpG1826 was shown to induce pDC cytokine production. Transfer of secreted factors from pDCs that were stimulated with a vaccine formulation comprising peptide antigen and CpG1826 enhanced mDC display of the antigen, particularly when delivered in nanoparticles. Only when treated with nanoparticle-conjugated vaccine could pDCs secrete factors to induce antigen display on naïve mDCs. These results reveal that pDCs can aid mDCs, highlighting the importance of activating both pDCs and mDCs in designing effective cancer vaccines, and demonstrate the advantage of using nanoparticle-based vaccine delivery.
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Affiliation(s)
- Nina Butkovich
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697, USA.
| | - Jo Anne Tucker
- Department of Medicine, University of California, Irvine, CA 92697, USA
| | - Aaron Ramirez
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697, USA.
| | - Enya Li
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697, USA.
| | - Vijaykumar S Meli
- Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA
| | - Edward L Nelson
- Department of Medicine, University of California, Irvine, CA 92697, USA
- Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697, USA
- Institute for Immunology, University of California, Irvine, CA 92697, USA
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697, USA.
- Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697, USA
- Institute for Immunology, University of California, Irvine, CA 92697, USA
- Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA
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11
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Li E, Butkovich N, Tucker JA, Nelson EL, Wang SW. Evaluating Anti-tumor Immune Responses of Protein Nanoparticle-Based Cancer Vaccines. Methods Mol Biol 2023; 2671:321-333. [PMID: 37308653 PMCID: PMC10560535 DOI: 10.1007/978-1-0716-3222-2_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cancer vaccines displaying tumor-associated antigens (TAAs) train the immune system for enhanced tumor recognition and elimination. Nanoparticle-based cancer vaccines are ingested and processed by dendritic cells, which subsequently activate antigen-specific cytotoxic T cells, allowing them to identify and eliminate tumor cells displaying these TAAs. Here, we describe the procedures to conjugate TAA and adjuvant to a model protein nanoparticle platform (E2), followed by assessment of vaccine performance. Utilizing a syngeneic tumor model, the efficacy of in vivo immunization was determined by cytotoxic T lymphocyte assays and IFN-γ ELISpot ex vivo assays to measure tumor cell lysis and TAA-specific activation, respectively. In vivo tumor challenge directly allows evaluation of anti-tumor response and survival over time.
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Affiliation(s)
- Enya Li
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA
| | - Nina Butkovich
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA
| | - Jo A Tucker
- Department of Medicine, University of California, Irvine, CA, USA
| | - Edward L Nelson
- Department of Medicine, University of California, Irvine, CA, USA
- Chao Family Comprehensive Cancer Center, University of California, Irvine, CA, USA
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA.
- Chao Family Comprehensive Cancer Center, University of California, Irvine, CA, USA.
- Department of Biomedical Engineering, University of California, Irvine, CA, USA.
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12
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Huang HY, Liao HY, Chen X, Wang SW, Cheng CW, Shahed-Al-Mahmud M, Liu YM, Mohapatra A, Chen TH, Lo JM, Wu YM, Ma HH, Chang YH, Tsai HY, Chou YC, Hsueh YP, Tsai CY, Huang PY, Chang SY, Chao TL, Kao HC, Tsai YM, Chen YH, Wu CY, Jan JT, Cheng TJR, Lin KI, Ma C, Wong CH. Vaccination with SARS-CoV-2 spike protein lacking glycan shields elicits enhanced protective responses in animal models. Sci Transl Med 2022; 14:eabm0899. [PMID: 35230146 PMCID: PMC9802656 DOI: 10.1126/scitranslmed.abm0899] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A major challenge to end the pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is to develop a broadly protective vaccine that elicits long-term immunity. As the key immunogen, the viral surface spike (S) protein is frequently mutated, and conserved epitopes are shielded by glycans. Here, we revealed that S protein glycosylation has site-differential effects on viral infectivity. We found that S protein generated by lung epithelial cells has glycoforms associated with increased infectivity. Compared to the fully glycosylated S protein, immunization of S protein with N-glycans trimmed to the mono-GlcNAc-decorated state (SMG) elicited stronger immune responses and better protection for human angiotensin-converting enzyme 2 (hACE2) transgenic mice against variants of concern (VOCs). In addition, a broadly neutralizing monoclonal antibody was identified from SMG-immunized mice that could neutralize wild-type SARS-CoV-2 and VOCs with subpicomolar potency. Together, these results demonstrate that removal of glycan shields to better expose the conserved sequences has the potential to be an effective and simple approach for developing a broadly protective SARS-CoV-2 vaccine.
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Affiliation(s)
- Han-Yi Huang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,GIP-TRIAD Master’s Program in Agro-Biomedical Science, National Taiwan University College of Medicine, Taipei 100233, Taiwan
| | - Hsin-Yu Liao
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Xiaorui Chen
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Szu-Wen Wang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Cheng-Wei Cheng
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | | | - Yo-Min Liu
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | | | - Ting-Hua Chen
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Jennifer M. Lo
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yi-Min Wu
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Hsiu-Hua Ma
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yi-Hsuan Chang
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Ho-Yang Tsai
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,Institute of Biochemical Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Chi Chou
- Biomedical Translation Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Yi-Ping Hsueh
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Ching-Yen Tsai
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Pau-Yi Huang
- Institute of Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Sui-Yuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei 100233, Taiwan.,Department of Laboratory Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei 100233, Taiwan
| | - Tai-Ling Chao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei 100233, Taiwan
| | - Han-Chieh Kao
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei 100233, Taiwan
| | - Ya-Min Tsai
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University College of Medicine, Taipei 100233, Taiwan
| | - Yen-Hui Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Chung-Yi Wu
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | - Jia-Tsrong Jan
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan
| | | | - Kuo-I Lin
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,Corresponding author. (C.M.); (K.-I.L.); . (C.-H.W.)
| | - Che Ma
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,Corresponding author. (C.M.); (K.-I.L.); . (C.-H.W.)
| | - Chi-Huey Wong
- Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan.,Department of Chemistry, Scripps Research, La Jolla, CA 92037, USA.,Corresponding author. (C.M.); (K.-I.L.); . (C.-H.W.)
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13
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Wei XN, Xu XY, Wang SW. [Infection and distribution characteristics of HPV of middle-aged and elderly women from a certain hospital in Guangxi Zhuang Autonomous Region from 2018 to 2020]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:468-473. [PMID: 35488545 DOI: 10.3760/cma.j.cn112150-20210929-00931] [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: 06/14/2023]
Abstract
Objectives: To analyze the type and distribution characteristics of human papillomavirus (HPV) infection along with cervical cytology in middle-aged and elderly women in Guangxi and to provide a basis for the prevention and treatment of cervical cancer in elderly women. Methods: 21 subtypes of HPV and cervical cytology of women over 45-year-old visiting the First Affiliated Hospital of Guangxi Medical University from January 2019 to December 2020 were collected. They were divided into two groups by age, 45-64 years group and over 65 years group. The HPV, HR-HPV, and multiple HPV infection prevalence were analyzed, as well as HPV genotypes, the age distribution of HPV infection rate, and cervical cytology. Results: A total of 6 657 eligible women were included. 6 238 women were in the 45-64 years group, with a HPV prevalence about 20.86% (1 301), while 419 women were in the over 65 years group, with a HPV prevalence about 32.94% (138). The age-associated HPV and HR-HPV prevalence increased with the age, peaking at the age group of 70-74 years (P<0.001). The most prevalent genotype was HPV52, and the infection rate was 5.3% (353), followed by HPV16 and HPV 58, about 4.63% (308) and 3.08% (205) respectively. The majority cytology of HPV-positive middle-aged and elderly women was normal. 8.70% (88) of them were ASC-US, 6.52% (66) for HSIL, 4.55% (46) for LSIL, and 2.96% (30) for ASC-H, and 0.10% (1) for SCC. Compared to middle-aged women, elderly women had a lower negative cytology rate, 69.79% (67) vs. 77.95% (714), but a higher HSIL rate, 13.54% (13) vs. 5.79% (53) (P<0.05). Conclusions: HPV and HR-HPV prevalence of elderly women in a medical center of Guangxi are higher than those of middle-aged women. The most prevalent genotype is HPV16 in elderly women, followed by HPV52 and HPV58.
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Affiliation(s)
- X N Wei
- Department of Gynecology and Obstetrics, Beijing Hospital, National Center of Gerontology, Beijing 100730, China Graduate School of Peking Union Medical College, Beijing 100730, China
| | - X Y Xu
- Graduate School of Peking Union Medical College, Beijing 100730, China
| | - S W Wang
- Department of Gynecology and Obstetrics, Beijing Hospital, National Center of Gerontology, Beijing 100730, China Graduate School of Peking Union Medical College, Beijing 100730, China
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14
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Abstract
Natural load-bearing mammalian tissues, such as cartilage and ligaments, contain ∼70% water yet can be mechanically stiff and strong due to the highly templated structures within. Here, we present a bioinspired approach to significantly stiffen and strengthen biopolymer hydrogels and films through the combination of nanoscale architecture and templated microstructure. Imprinted submicrometer pillar arrays absorb energy and deflect cracks. The produced chitosan hydrogels show nanofiber chains aligned by nanopillar topography, subsequently templating the microstructure throughout the film. These templated nanopillar chitosan hydrogels mechanically outperform unstructured flat hydrogels, with increases in the moduli of ∼160%, up to ∼20 MPa, and work at break of ∼450%, up to 8.5 MJ m-3. Furthermore, the strength at break increases by ∼350%, up to ∼37 MPa, and it is one of the strongest hydrogels yet reported. The nanopillar templating strategy is generalizable to other biopolymers capable of forming oriented domains and strong interactions. Overall, this process yields hydrogel films that demonstrate mechanical performance comparable to that of other stiff, strong hydrogels and natural tissues.
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Affiliation(s)
- Sara Heedy
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Juviarelli J Pineda
- Department of Materials Science and Engineering, University of California, Irvine, California 92697, United States
| | - Vijaykumar S Meli
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
| | - Albert F Yee
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, California 92697, United States
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15
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Chen CY, Lin YW, Wang SW, Lin YC, Cheng YY, Ren CT, Wong CH, Wu CY. Synthesis of Azido-Globo H Analogs for Immunogenicity Evaluation. ACS Cent Sci 2022; 8:77-85. [PMID: 35106375 PMCID: PMC8796297 DOI: 10.1021/acscentsci.1c01277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Indexed: 06/14/2023]
Abstract
Globo H (GH) is a tumor-associated carbohydrate antigen (TACA), and GH conjugations have been evaluated as potential cancer vaccines. However, like all carbohydrate-based vaccines, low immunogenicity is a major issue. Modifications of the TACA increase its immunogenicity, but the systemic modification on GH is challenging and the synthesis is cumbersome. In this study, we synthesized several azido-GH analogs for evaluation, using galactose oxidase to selectively oxidize C6-OH of the terminal galactose or N-acetylgalactosamine on lactose, Gb3, Gb4, and SSEA3 into C6 aldehyde, which was then transformed chemically to the azido group. The azido-derivatives were further glycosylated to azido-GH analogs by glycosyltransferases coupled with sugar nucleotide regeneration. These azido-GH analogs and native GH were conjugated to diphtheria toxoid cross-reactive material CRM197 for vaccination with C34 adjuvant in mice. Glycan array analysis of antisera indicated that the azido-GH glycoconjugate with azide at Gal-C6 of Lac (1-CRM197) elicited the highest antibody response not only to GH, SSEA3, and SSEA4, which share the common SSEA3 epitope, but also to MCF-7 cancer cells, which express these Globo-series glycans.
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Affiliation(s)
- Chiang-Yun Chen
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
- Chemical
Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan
- Department
of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Yu-Wei Lin
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Szu-Wen Wang
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
- Institute
of Biochemical Sciences, National Taiwan
University, Taipei 106, Taiwan
| | - Yung-Chu Lin
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Yang-Yu Cheng
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
- Institute
of Biochemistry and Molecular Biology, National
Yang-Ming University, Taipei 112, Taiwan
| | - Chien-Tai Ren
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Chi-Huey Wong
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
- Chemical
Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan
- Institute
of Biochemical Sciences, National Taiwan
University, Taipei 106, Taiwan
- Department
of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Chung-Yi Wu
- Genomics
Research Center, Academia Sinica, Taipei 115, Taiwan
- Chemical
Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan
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16
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Wang SW, Ye JH, Liu YS, Sun YC, Ye HQ, Zhou YS. [Application and research progress of digital virtual simulated design in dental esthetic rehabilitation]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:101-106. [PMID: 35012259 DOI: 10.3760/cma.j.cn112144-20210408-00166] [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: 06/14/2023]
Abstract
In dental esthetic rehabilitation, patients pay great attention to the rehabilitative esthetic effect before teeth preparation, and this is also an important content of doctor-patient communication. Along with the development and combined application of intraoral scan, three-dimensional (3D) face scan, digital design, numerical control machining and 3D printing technology, digital technology is gradually applied to the virtual simulated design before irreversible operation in dental esthetic rehabilitation. Digital technology can be used in dentistry to simulate the esthetic outcome in advance, to assist communication among the dentists, patients and dental technicians, and to realize satisfactory outcome in the final restorations precisely, which, as a result, increases the clinical satisfaction. This review focuses on the application of digital virtual simulated design technology in dental esthetic rehabilitation, analyzes the current research development, deficiency and future prospects, so as to provide guidance for clinical diagnosis and treatment.
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Affiliation(s)
- S W Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J H Ye
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y S Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y C Sun
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Q Ye
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y S Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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17
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Butkovich N, Li E, Ramirez A, Burkhardt AM, Wang SW. Advancements in protein nanoparticle vaccine platforms to combat infectious disease. Wiley Interdiscip Rev Nanomed Nanobiotechnol 2021; 13:e1681. [PMID: 33164326 PMCID: PMC8052270 DOI: 10.1002/wnan.1681] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 07/14/2020] [Revised: 10/04/2020] [Accepted: 10/08/2020] [Indexed: 12/14/2022]
Abstract
Infectious diseases are a major threat to global human health, yet prophylactic treatment options can be limited, as safe and efficacious vaccines exist only for a fraction of all diseases. Notably, devastating diseases such as acquired immunodeficiency syndrome (AIDS) and coronavirus disease of 2019 (COVID-19) currently do not have vaccine therapies. Conventional vaccine platforms, such as live attenuated vaccines and whole inactivated vaccines, can be difficult to manufacture, may cause severe side effects, and can potentially induce severe infection. Subunit vaccines carry far fewer safety concerns due to their inability to cause vaccine-based infections. The applicability of protein nanoparticles (NPs) as vaccine scaffolds is promising to prevent infectious diseases, and they have been explored for a number of viral, bacterial, fungal, and parasitic diseases. Many types of protein NPs exist, including self-assembling NPs, bacteriophage-derived NPs, plant virus-derived NPs, and human virus-based vectors, and these particular categories will be covered in this review. These vaccines can elicit strong humoral and cellular immune responses against specific pathogens, as well as provide protection against infection in a number of animal models. Furthermore, published clinical trials demonstrate the promise of applying these NP vaccine platforms, which include bacteriophage-derived NPs, in addition to multiple viral vectors that are currently used in the clinic. The continued investigations of protein NP vaccine platforms are critical to generate safer alternatives to current vaccines, advance vaccines for diseases that currently lack effective prophylactic therapies, and prepare for the rapid development of new vaccines against emerging infectious diseases. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Biology-Inspired Nanomaterials > Protein and Virus-Based Structures.
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Affiliation(s)
- Nina Butkovich
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
| | - Enya Li
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
| | - Aaron Ramirez
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
| | - Amanda M. Burkhardt
- Department of Clinical Pharmacy, School of Pharmacy, University of Southern California, Los Angeles, CA 90089 USA
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697 USA
- Department of Biomedical Engineering, University of California, Irvine, CA 92697 USA
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18
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Li M, Dong XD, Lyu AM, Feng Q, Gai TZ, Wang SW. [The effect of episiotomy on pelvic floor muscle function within six months after first childbirth through electromyography and questionnaires assessment]. Zhonghua Yi Xue Za Zhi 2021; 101:339-344. [PMID: 34645252 DOI: 10.3760/cma.j.cn112137-20200623-01929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the impact of mediolateral episiotomy on pelvic floor muscle (PFM) function through surface electromyography (sEMG) and quality of life questionnaire assessment. Methods: From January 2018 to June 2019, 1 250 eligible primiparous women were enrolled in Beijing Hospital and the First People's Hospital of Yunnan Province. Participants were divided into episiotomy group (n=676)and non-episiotomy group (n=574). Both groups underwent clinical pelvic examination, sEMG assessment, and quality of life (QOL) questionnaire assessment at two fixed time points: 6-8 weeks, 6 months after vaginal delivery. Follow-up of sEMG amplitudes and their correlation with QOL questionnaire scores were evaluated. Results: Among the women delivered with episiotomy, the peak amplitude of phasic contraction (PPC) was (17.7±5.3) μV at 6-8 weeks after childbirth and (29.6±8.7) μV at 6 months after childbirth. The mean amplitude of tonic contraction (MTC) was (14.8±7.4) μV and (22.2±8.9) μV, respectively. In the non-episiotomy group, PPC was (20.0±7.9) μV and (35.4±10.7) μV at 6-8 weeks and 6 months, and MTC was (17.8±9.0) μV and (27.5±8.9) μV, respectively. Compared with EMG amplitudes at 6-8 weeks, both PPC and MTC significantly improved at 6 months in both groups (all P<0.01). Moreover, episiotomy was related with significantly lower PPC and MTC at both fixed checkups. Besides, both IIQ-7 and PFIQ-7 questionnaire scores improved at 6 months compared with those at 6-8 weeks in both groups (all P<0.001). There was consistently significant difference in QOL scores between episiotomy and non-episiotomy group at two checkups (all P<0.05). A negative correlation was observed between PFM contractile amplitudes and QOL scores at both time points after childbirth (all P<0.05), and the correlation weakened with time. Conclusion: Episiotomy has a negative impact on the postpartum PFM contractile function within 6 months after childbirth. The negative correlation between the sEMG and QOL scores indicates that sEMG is a candidate assessment for PFM function follow-up after childbirth.
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Affiliation(s)
- M Li
- Department of Obstetrics and Gynecology,Beijing Hospital,National Center of Gerontology,Institute of Geriatric Medicine, Chinese Acadamy of Medical Sciences, Beijing 100730, China
| | - X D Dong
- Department of Gynecology, the First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, China
| | - A M Lyu
- Department of Obstetrics and Gynecology,Beijing Hospital,National Center of Gerontology,Institute of Geriatric Medicine, Chinese Acadamy of Medical Sciences, Beijing 100730, China
| | - Q Feng
- Department of Obstetrics and Gynecology,Beijing Hospital,National Center of Gerontology,Institute of Geriatric Medicine, Chinese Acadamy of Medical Sciences, Beijing 100730, China
| | - T Z Gai
- Department of Obstetrics and Gynecology,Beijing Hospital,National Center of Gerontology,Institute of Geriatric Medicine, Chinese Acadamy of Medical Sciences, Beijing 100730, China
| | - S W Wang
- Department of Obstetrics and Gynecology,Beijing Hospital,National Center of Gerontology,Institute of Geriatric Medicine, Chinese Acadamy of Medical Sciences, Beijing 100730, China
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Neek M, Tucker JA, Butkovich N, Nelson EL, Wang SW. An Antigen-Delivery Protein Nanoparticle Combined with Anti-PD-1 Checkpoint Inhibitor Has Curative Efficacy in an Aggressive Melanoma Model. Adv Ther (Weinh) 2020; 3:2000122. [PMID: 34141865 PMCID: PMC8205422 DOI: 10.1002/adtp.202000122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 05/31/2020] [Indexed: 12/14/2022]
Abstract
Immune checkpoint inhibition is a promising alternative treatment to standard chemotherapies; however, it fails to achieve long-term remission in a significant portion of patients. A previously developed protein nanoparticle-based platform (E2 nanoparticle) delivers cancer antigens to increase antigen-specific tumor responses. While prior work has focussed on prophylactic conditions, the objectives in this study are therapeutic. It is hypothesized that immune checkpoint inhibition, when augmented by antigen delivery using E2 nanoparticles containing CpG oligonucleotide 1826 (CpG) and a glycoprotein 100 (gp100) melanoma antigen epitope (CpG-gp-E2), would synergistically elicit antitumor responses. To identify a regimen primed for obtaining effective treatment results, immune benchmarks in the spleen and tumor are examined. Conditions that lead to significant immune activation, including increases in gp100-specific interferon gamma (IFN-𝜸), CD8 T cells in the spleen, tumor-infiltrating CD8 T cells, and survival time are identified. Based on the findings, the resulting combination of CpG-gp-E2 and anti-programmed cell death protein 1 (anti-PD-1) treatment in tumor-challenged mice yield significantly increased long-term survival; more than 50% of the mice treated with combination therapy were tumor-free, compared with 0% and ≈5% for CpG-gp-E2 and anti-PD-1 alone, respectively. Evidence of a durable antitumor response is also observed upon tumor rechallenge, pointing to long-lasting immune memory.
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Affiliation(s)
- Medea Neek
- Department of Chemical and Biomolecular Engineering University of California Irvine, CA 92697, USA
| | - Jo Anne Tucker
- Department of Medicine University of California Irvine, CA 92697, USA
| | - Nina Butkovich
- Department of Chemical and Biomolecular Engineering University of California Irvine, CA 92697, USA
| | - Edward L Nelson
- Department of Medicine University of California Irvine, CA 92697, USA
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering University of California Irvine, CA 92697, USA
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20
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Tucker JA, Neek M, Wang SW, Nelson EL. Abstract 2223: A novel protein nanoparticle antigen delivery platform combined with checkpoint inhibition has curative efficacy in the aggressive B16-F10 melanoma model. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
We have developed a novel, non-viral nanoparticle-based vaccine platform that has shown exciting promise for cancer antigen delivery to increase antigen-specific anti-tumor immune responses and significantly prolong survival in the aggressive B16-F10 melanoma model. Our non-viral protein nanoparticle has advantageous properties for antigen delivery and vaccine development. Nanoparticle studies have shown that there is an optimal size range for passive transport in the lymphatic system and uptake by antigen-presenting cells (approximately 20-45 nm); our particle is in this size range. Biodistribution studies of the nanoparticle have shown that they are effectively taken up by almost 50% of DCs within the draining lymph nodes. The structure of the nanoparticle allows for independent functionalization of its internal hollow cavity and external surface, enabling efficient and simultaneous adjuvant and antigen co-delivery. We, as have others, found that vaccine-elicited anti-tumor immune responses are insufficient to cure animals in this model.Immune checkpoint inhibition has provided significant clinical benefit and become an effective alternative treatment to standard chemotherapies in some tumor types. It is believed that immune checkpoint inhibition releases the brake on the existing anti-tumor immune response; however, even in the tumor types where there is clinical benefit, a significant proportion of patients fail to achieve long-term remission. We hypothesized that the combination of our anti-tumor protein nanoparticle vaccine ("E2"; to further prime the immune system to specific tumor-associated antigens) and immune checkpoint blockade will be synergistic and yield improved efficacy, even in the aggressive B16-F10 melanoma tumor model. Immunization with simultaneous delivery of CpG (adjuvant) and gp100 (melanoma MHC-I restricted antigen) within E2 nanoparticles results in significantly increased gp100-specific IFN-γ production by ELISpot, CD8 T cell count in the spleen, tumor-infiltrating CD8 T cell population, and survival time in the B16-F10 murine melanoma model. The combination of the CpG-gp-E2 nanoparticle with anti-PD-1 therapy significantly increased long-term survival; approximately 50% of the mice treated with combination therapy remained tumor-free for up to 60 days (cure) in mice that were inoculated with the poorly immunogenic B16-F10 syngeneic melanoma 24 hours prior to initiating treatment; this is compared with 0% and ≈5% for CpG-gp-E2 and anti-PD-1 treatments alone, respectively. The very limited efficacy of immune checkpoint inhibition in this model is well documented. Thus, this result is more significant. Evidence of a durable anti-tumor response was also observed upon tumor re-challenge. These investigations show that the combination of checkpoint inhibition with antigen delivery using a non-viral protein nanoparticle significantly improves the efficacy over vaccine or immune checkpoint blockade alone.To our knowledge, this is the first report demonstrating the synergistic effects of combination therapy of anti-PD-1 with protein-based nanoparticle vaccines. These data support the exceptional utility of our E2 nanoparticle-based vaccines, especially when combined with immune checkpoint blockade.
Citation Format: Jo Anne Tucker, Medea Neek, Szu-Wen Wang, Edward L. Nelson. A novel protein nanoparticle antigen delivery platform combined with checkpoint inhibition has curative efficacy in the aggressive B16-F10 melanoma model [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2223.
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21
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Rowley AT, Meli VS, Wu-Woods NJ, Chen EY, Liu WF, Wang SW. Effects of Surface-Bound Collagen-Mimetic Peptides on Macrophage Uptake and Immunomodulation. Front Bioeng Biotechnol 2020; 8:747. [PMID: 32719788 PMCID: PMC7348040 DOI: 10.3389/fbioe.2020.00747] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/15/2020] [Accepted: 06/11/2020] [Indexed: 11/13/2022] Open
Abstract
The interaction between collagen/collagen-like peptides and the commonly expressed immune cell receptor LAIR-1 (leukocyte-associated immunoglobulin-like receptor-1) regulates and directs immune responses throughout the body. Understanding and designing these interactions within the context of biomaterials could advance the development of materials used in medical applications. In this study, we investigate the immunomodulatory effects of biomaterials engineered to display a human collagen III-derived ligand peptide (LAIR1-LP) that targets LAIR-1. Specifically, we examine the effects of LAIR1-LP functionalized surfaces on uptake of polymeric particles and cell debris by macrophages polarized toward inflammatory or healing phenotypes. We observed that culture of macrophages on LAIR1-LP functionalized surfaces increased their uptake of PLGA micro- and nano-particles, as well as apoptotic fibroblasts, while reducing their secretion of TNFα in response to LPS/IFNγ pro-inflammatory stimulation, when compared to cells seeded on control surfaces. To investigate the role of LAIR-1 in the observed LAIR1-LP-induced effects, we used siRNA to knock down LAIR-1 expression and found that cells lacking LAIR-1 exhibited enhanced particle uptake on LAIR1-LP and control surfaces. Furthermore, analysis of gene expression showed that LAIR-1 knockdown led to increase expression of other receptors involved in cell uptake, including CD-36, SRA-1, and beta-2 integrin. Together, our study suggests that LAIR1-LP enhances macrophage uptake potentially through interactions with collagen-domain binding surface receptors, and inhibits inflammation through interaction with LAIR-1.
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Affiliation(s)
- Andrew T Rowley
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States
| | - Vijaykumar S Meli
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
| | - Natalie J Wu-Woods
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
| | - Esther Y Chen
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States
| | - Wendy F Liu
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States.,The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, United States
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
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22
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Abstract
Stimuli-responsive polymers are an efficient means of targeted therapy. Compared to conventional agents, they increase bioavailability and efficacy. In particular, polymer hydrogel nanoparticles (NPs) can be designed to respond when exposed to a specific environmental stimulus such as pH or temperature. However, targeting a specific metabolite as the trigger for stimuli response could further elevate selectivity and create a new class of bioresponsive materials. In this work we describe an N-isopropylacrylamide (NIPAm) NP that responds to a specific metabolite, characteristic of a hypoxic environment found in cancerous tumors. NIPAm NPs were synthesized by copolymerization with an oxamate derivative, a known inhibitor of lactate dehydrogenase (LDH). The oxamate-functionalized NPs (OxNP) efficiently sequestered LDH to produce an OxNP-protein complex. When exposed to elevated concentrations of lactic acid, a substrate of LDH and a metabolite characteristic of hypoxic tumor microenvironments, OxNP-LDH complexes swelled (65%). The OxNP-LDH complexes were not responsive to structurally related small molecules. This work demonstrates a proof of concept for tuning NP responsiveness by conjugation with a key protein to target a specific metabolite of disease.
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Affiliation(s)
- Krista R Fruehauf
- Department of Chemistry , University of California, Irvine (UCI) , Irvine , California 92697-2025 , United States
| | - Tae Il Kim
- Department of Chemical and Biomolecular Engineering , University of California, Irvine (UCI) , Irvine , California 92697-2580 , United States
| | - Edward L Nelson
- Department of Medicine, Chao Family Comprehensive Cancer Center, and Institute for Immunology , University of California, Irvine (UCI) , Orange , California 92868 , United States
| | - Joseph P Patterson
- Department of Chemistry , University of California, Irvine (UCI) , Irvine , California 92697-2025 , United States
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering , University of California, Irvine (UCI) , Irvine , California 92697-2580 , United States
| | - Kenneth J Shea
- Department of Chemistry , University of California, Irvine (UCI) , Irvine , California 92697-2025 , United States
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23
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Shang YJ, Lv J, Wang SW, Ren LP, Chen W, Guo YD. Boettcherisca peregrina (Diptera: Sarcophagidae): A flesh fly species of medical and forensic importance. Trop Biomed 2019; 36:131-142. [PMID: 33597433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Boettcherisca peregrine, as a fly with the necrophagous habits found on human corpses and a vector of disease or parasitic, myiasis-producing agent, is a significant flesh fly species in forensic entomology and medical context. This study reviewed the various aspects of this fly species, including morphology, bionomics, molecular analysis, medical and forensic entomology involvement, such as morphological characteristics of larva, puparia and adult, developmental rate of larvae, the effects of heavy metal (such as Cd and Cu) on the growth and developmentin of larvae, and the impact of some specific stimulis on the labellar chemosensory hair of B. peregrina. Species identification, gene and functions, myiasis and forensic case of this species were also outlined. Therefore, the paper has an important implication for improving the role of B. peregrina in medicine and forensic science.
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Affiliation(s)
- Y J Shang
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha 410013, Hunan, China
| | - J Lv
- Department of Clinical Medicine, Xiangya School of Medicine, Central South University, Changsha 410013, Hunan, China
| | - S W Wang
- Department of Forensic Science, School of Basic Medical Sciences, Xinjiang Medical University, Ürümqi 830011, China
| | - L P Ren
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha 410013, Hunan, China
| | - W Chen
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha 410013, Hunan, China
| | - Y D Guo
- Department of Forensic Science, School of Basic Medical Sciences, Central South University, Changsha 410013, Hunan, China
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24
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Neek M, Kim TI, Wang SW. Protein-based nanoparticles in cancer vaccine development. Nanomedicine 2019; 15:164-174. [PMID: 30291897 PMCID: PMC6289732 DOI: 10.1016/j.nano.2018.09.004] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [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: 03/26/2018] [Revised: 09/17/2018] [Accepted: 09/24/2018] [Indexed: 01/09/2023]
Abstract
Peptide and protein-based cancer vaccines usually fail to elicit efficient immune responses against tumors. However, delivery of these peptides and proteins as components within caged protein nanoparticles has shown promising improvements in vaccine efficacy. Advantages of protein nanoparticles over other vaccine platforms include their highly organized structures and symmetry, biodegradability, ability to be specifically functionalized at three different interfaces (inside and outside the protein cage, and between subunits in macromolecular assembly), and ideal size for vaccine delivery. In this review, we discuss different classes of virus-like particles and caged protein nanoparticles that have been used as vehicles to transport and increase the interaction of cancer vaccine components with the immune system. We review the effectiveness of these protein nanoparticles towards inducing and elevating specific immune responses, which are needed to overcome the low immunogenicity of the tumor microenvironment.
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Affiliation(s)
- Medea Neek
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA
| | - Tae Il Kim
- Department of Biomedical Engineering, University of California, Irvine, CA, USA
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA, USA; Department of Biomedical Engineering, University of California, Irvine, CA, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, CA, USA.
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25
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Que RA, Arulmoli J, Da Silva NA, Flanagan LA, Wang SW. Recombinant collagen scaffolds as substrates for human neural stem/progenitor cells. J Biomed Mater Res A 2018; 106:1363-1372. [PMID: 29341434 DOI: 10.1002/jbm.a.36343] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 12/05/2017] [Accepted: 01/10/2018] [Indexed: 02/05/2023]
Abstract
Adhesion to the microenvironment profoundly affects stem cell functions, including proliferation and differentiation, and understanding the interaction of stem cells with the microenvironment is important for controlling their behavior. In this study, we investigated the effects of the integrin binding epitopes GFOGER and IKVAV (natively present in collagen I and laminin, respectively) on human neural stem/progenitor cells (hNSPCs). To test the specificity of these epitopes, GFOGER or IKVAV were placed within the context of recombinant triple-helical collagen III engineered to be devoid of native integrin binding sites. HNSPCs adhered to collagen that presented GFOGER as the sole integrin-binding site, but not to IKVAV-containing collagen. For the GFOGER-containing collagens, antibodies against the β1 integrin subunit prevented cellular adhesion, antibodies against the α1 subunit reduced cell adhesion, and antibodies against α2 or α3 subunits had no significant effect. These results indicate that hNSPCs primarily interact with GFOGER through the α1β1 integrin heterodimer. These GFOGER-presenting collagen variants also supported differentiation of hNSPCs into neurons and astrocytes. Our findings show, for the first time, that hNSPCs can bind to the GFOGER sequence, and they provide motivation to develop hydrogels formed from recombinant collagen variants as a cell delivery scaffold. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1363-1372, 2018.
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Affiliation(s)
- Richard A Que
- Department of Biomedical Engineering, University of California, Irvine, California, 92697
| | - Janahan Arulmoli
- Department of Biomedical Engineering, University of California, Irvine, California, 92697.,Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, California, 92697
| | - Nancy A Da Silva
- Department of Biomedical Engineering, University of California, Irvine, California, 92697.,Department of Chemical Engineering and Materials Science, University of California, Irvine, California, 92697
| | - Lisa A Flanagan
- Department of Biomedical Engineering, University of California, Irvine, California, 92697.,Sue & Bill Gross Stem Cell Research Center, University of California, Irvine, California, 92697.,Department of Neurology, University of California, Irvine, California, 92697
| | - Szu-Wen Wang
- Department of Biomedical Engineering, University of California, Irvine, California, 92697.,Department of Chemical Engineering and Materials Science, University of California, Irvine, California, 92697
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26
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Tang L, Zhang Y, Li H, Liu YH, Zhou YS, Li BW, Wu WY, Wang SW. [Influence of EDC ethanol solution on dentin shear bond strength with a self-etch adhesive system]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:1055-1059. [PMID: 29263481] [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: 06/07/2023]
Abstract
OBJECTIVE To evaluate the bonding ability of one representative self-etch adhesive system by applying the micro-shear bond strength test method with different concentrations of carbodiimide [1-ethyl-3-(3-dimethylaminopropyl) carbodiimide, EDC] ethanol solution pretreatment. METHODS Extracted sound human third molars were collected from patients ranging 18 to 40 years. In the study, 80 molars were first sectioned to prepare a flat middle coronal dentin surface and then were randomly divided into 5 groups (n=16) according to without/with different surface treatments [blank control; 80% (volume fraction) ethanol control; EDC ethanol solution of three concentrations (0.01 mol/L, 0.3 mol/L and 0.5 mol/L)]. Each specimen underwent a micro-shear bond strength test and failure mode observation. The data collected were subjected to statistical analysis using one-way ANOVA and post hoc Tukey's test to analyze the difference of the micro-shear bond strength, and chi-square test/Fisher's exact test for the failure mode frequency of the micro-shear bond strength test specimens at a significance level of P=0.05. RESULTS The micro-shear bond strength of the three concentration EDC treatments were (35.29±8.97) MPa (0.01 mol/L EDC treatment group), (40.24±9.68) MPa (0.3 mol/L EDC treatment group), (37.38±9.66) MPa (0.5 mol/L EDC treatment group) separately; and that of the 80% ethanol group was (37.49±7.76) MPa. All micro-shear bond strength value of the above four groups was statistically higher than that of the blank control group [(33.81±7.98) MPa]. The immediate micro-shear bond strength and failure mode was of no statistically significant difference among all the groups. It was noticed that the immediate micro-shear bond strength of 0.3 mol/L was higher than that of all the other groups, especially higher than that of the 80% ethanol pretreatment group despite that there was no significant difference among all the groups. And the test of failure mode indicated that the cohesive failure was more common, while the frequency of adhesive failure was rare in each experimental group. CONCLUSION EDC pretreatment had no adverse effect on the immediate micro-shear bond strengths of Clearfil SE Bond. Meanwhile, EDC treatment did not cause more adhesive failure in immediate micro-shear test, which had further denoted what was said above. However, it needs more research to illustrate the anti-enzymatic role of EDC in dentin bonding.
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Affiliation(s)
- L Tang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Zhang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y H Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y S Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - B W Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - W Y Wu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - S W Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Kim YK, Chu SH, Hsieh JY, Kamoku CM, Tenner AJ, Liu WF, Wang SW. Incorporation of a Ligand Peptide for Immune Inhibitory Receptor LAIR-1 on Biomaterial Surfaces Inhibits Macrophage Inflammatory Responses. Adv Healthc Mater 2017; 6. [PMID: 29083540 DOI: 10.1002/adhm.201700707] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 06/06/2017] [Revised: 08/22/2017] [Indexed: 01/22/2023]
Abstract
Leukocyte-associated immunoglobulin-like receptor-1 (LAIR-1) is an inhibitory receptor broadly expressed on immune cells, with its ligands residing within the extracellular matrix protein collagen. In this study, surfaces are modified with a LAIR-1 ligand peptide (LP), and it is observed that macrophages cultured on LAIR-1 LP-conjugated surfaces exhibit significantly reduced secretion of inflammatory cytokines in response to proinflammatory stimuli that reflect an injured environment. These downregulated mediators include TNF-α, MIP-1α, MIP-1β, MIP-2, RANTES, and MIG. Knockdown of LAIR-1 using siRNA abrogates this inhibition of cytokine secretion, supporting the specificity of the inhibitory effect to this receptor. These results are the first to demonstrate that integration of LAIR-1 ligands with biomaterials could suppress inflammatory responses.
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Affiliation(s)
- Yoon Kyung Kim
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology; University of California; Irvine CA 92697 USA
| | - Shu-Hui Chu
- Department of Molecular Biology and Biochemistry; University of California; Irvine CA 92697 USA
| | - Jessica Y. Hsieh
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology; University of California; Irvine CA 92697 USA
| | - Cody M. Kamoku
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
| | - Andrea J. Tenner
- Department of Molecular Biology and Biochemistry; University of California; Irvine CA 92697 USA
| | - Wendy F. Liu
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology; University of California; Irvine CA 92697 USA
| | - Szu-Wen Wang
- Department of Chemical Engineering & Materials Science; University of California; Irvine CA 92697 USA
- Department of Biomedical Engineering; University of California; Irvine CA 92697 USA
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Neek M, Tucker JA, Kim TI, Molino NM, Nelson EL, Wang SW. Co-delivery of human cancer-testis antigens with adjuvant in protein nanoparticles induces higher cell-mediated immune responses. Biomaterials 2017; 156:194-203. [PMID: 29202325 DOI: 10.1016/j.biomaterials.2017.11.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/07/2017] [Accepted: 11/19/2017] [Indexed: 12/19/2022]
Abstract
Nanoparticles have attracted considerable interest as cancer vaccine delivery vehicles for inducing sufficient CD8+ T cell-mediated immune responses to overcome the low immunogenicity of the tumor microenvironment. Our studies described here are the first to examine the effects of clinically-tested human cancer-testis (CT) peptide epitopes within a synthetic nanoparticle. Specifically, we focused on two significant clinical CT targets, the HLA-A2 restricted epitopes of NY-ESO-1 and MAGE-A3, using a viral-mimetic packaging strategy. Our data shows that simultaneous delivery of a NY-ESO-1 epitope (SLLMWITQV) and CpG using the E2 subunit assembly of pyruvate dehydrogenase (E2 nanoparticle), resulted in a 25-fold increase in specific IFN-γ secretion in HLA-A2 transgenic mice. This translated to a 15-fold increase in lytic activity toward target cancer cells expressing the antigen. Immunization with a MAGE-A3 epitope (FLWGPRALV) delivered with CpG in E2 nanoparticles yielded an increase in specific IFN-γ secretion and cell lysis by 6-fold and 9-fold, respectively. Furthermore, combined delivery of NY-ESO-1 and MAGE-A3 antigens in E2 nanoparticles yielded an additive effect that increased lytic activity towards cells bearing NY-ESO-1+ and MAGE-A3+. Our investigations demonstrate that formulation of CT antigens within a nanoparticle can significantly enhance antigen-specific cell-mediated responses, and the combination of the two antigens in a vaccine can preserve the increased individual responses that are observed for each antigen alone.
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Affiliation(s)
- Medea Neek
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA
| | - Jo Anne Tucker
- Department of Medicine, University of California, Irvine, CA 92697, USA
| | - Tae Il Kim
- Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA
| | - Nicholas M Molino
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA
| | - Edward L Nelson
- Department of Medicine, University of California, Irvine, CA 92697, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697, USA; Institute for Immunology, University of California, Irvine, CA 92697, USA
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA; Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697, USA.
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Cheng YB, Lu YY, Chang FR, Wang SW, Chen CY, Wu YC. Anti-Angiogenic diketopiperazines from the Endophytic Fungus Diaporthe arecae Associated with Mangrove Kandelia obovate. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- YB Cheng
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - YY Lu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - FR Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - SW Wang
- Department of Medicine, Mackay Medical College, New Taipei City, Taiwan
| | - CY Chen
- Department of Physical Therapy, Tzu-Hui Institute of Technology, Pingtung, Taiwan
| | - YC Wu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products & Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
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Liu Q, Xu TY, Zhang ZB, Leung CK, You DY, Wang SW, Yi S, Jing Q, Xie RF, Li HJ, Zeng XF. Corrigendum to "Effects of co-administration of ketamine and ethanol on the dopamine system via the cortex-striatum circuitry" [Life Sci. (Apr 25 2017) pii: S0024-3205(17)30198-4]. Life Sci 2017; 181:70. [PMID: 28587724 DOI: 10.1016/j.lfs.2017.05.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Q Liu
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - T Y Xu
- Experiment Center for Medical Science Research, Kunming Medical University, Kunming, Yunnan, China
| | - Z B Zhang
- Experiment Center for Medical Science Research, Kunming Medical University, Kunming, Yunnan, China
| | - C K Leung
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China; CUHK-SDU Joint Laboratory of Reproductive Genetics, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - D Y You
- Department of Science and Technology, Kunming Medical University, Kunming, Yunnan, China
| | - S W Wang
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - S Yi
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - Q Jing
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - R F Xie
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China
| | - H J Li
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China.
| | - X F Zeng
- School of Forensic Medicine, Kunming Medical University, Kunming, Yunnan, China.
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Abstract
Efficient delivery of antigens is of paramount concern in immunotherapies. We aimed to target antigen presenting cells (APCs) by conjugating CpG oligonucleotides to an E2 protein nanoparticle surface (CpG-PEG-E2). Compared to E2 alone, we observed ~4-fold increase of in vitro APC uptake of both CpG-PEG-E2 and E2 conjugated to non-CpG DNA. Furthermore, compared to E2-alone or E2 functionalized solely with polyethylene glycol (PEG), the CpG-PEG-E2 showed enhanced lymph node retention up to at least 48 hr and 2-fold increase in APC uptake in vivo, parameters which are advantageous for vaccine success. This suggests that enhanced APC uptake of nanoparticles mediated by oligonucleotide display may help overcome delivery barriers in vaccine development.
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Affiliation(s)
- Nicholas M Molino
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697 USA
| | - Medea Neek
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697 USA
| | - Jo Anne Tucker
- Department of Medicine, University of California, Irvine, CA 92697 USA
| | - Edward L Nelson
- Department of Medicine, University of California, Irvine, CA 92697 USA.,Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697 USA.,Institute for Immunology, University of California, Irvine, CA 92697 USA
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697 USA.,Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697 USA.,Department of Biomedical Engineering, University of California, Irvine, CA 92697 USA
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Zhao YJ, Wang SW, Liu Y, Wang Y. [A method for rapid extracting three-dimensional root model of vivo tooth from cone beam computed tomography data based on the anatomical characteristics of periodontal ligament]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:54-59. [PMID: 28203004] [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: 06/06/2023]
Abstract
OBJECTIVE To explore a new method for rapid extracting and rebuilding three-dimensional (3D) digital root model of vivo tooth from cone beam computed tomography (CBCT) data based on the anatomical characteristics of periodontal ligament, and to evaluate the extraction accuracy of the method. METHODS In the study, 15 extracted teeth (11 with single root, 4 with double roots) were collected from oral clinic and 3D digital root models of each tooth were obtained by 3D dental scanner with a high accuracy 0.02 mm in STL format. CBCT data for each patient were acquired before tooth extraction, DICOM data with a voxel size 0.3 mm were input to Mimics 18.0 software. Segmentation, Morphology operations, Boolean operations and Smart expanded function in Mimics software were used to edit teeth, bone and periodontal ligament threshold mask, and root threshold mask were automatically acquired after a series of mask operations. 3D digital root models were extracted in STL format finally. 3D morphology deviation between the extracted root models and corresponding vivo root models were compared in Geomagic Studio 2012 software. The 3D size errors in long axis, bucco-lingual direction and mesio-distal direction were also calculated. RESULTS The average value of the 3D morphology deviation for 15 roots by calculating Root Mean Square (RMS) value was 0.22 mm, the average size errors in the mesio-distal direction, the bucco-lingual direction and the long axis were 0.46 mm, 0.36 mm and -0.68 mm separately. The average time of this new method for extracting single root was about 2-3 min. It could meet the accuracy requirement of the root 3D reconstruction fororal clinical use. CONCLUSION This study established a new method for rapid extracting 3D root model of vivo tooth from CBCT data. It could simplify the traditional manual operation and improve the efficiency and automation of single root extraction. The strategy of this method for complete dentition extraction needs further research.
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Affiliation(s)
- Y J Zhao
- Center of Digital Dentistry, Department of Prosthodontics, Department of Orthodontic, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - S W Wang
- Center of Digital Dentistry, Department of Prosthodontics, Department of Orthodontic, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Liu
- Center of Digital Dentistry, Department of Prosthodontics, Department of Orthodontic, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Wang
- Center of Digital Dentistry, Department of Prosthodontics, Department of Orthodontic, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Research Center of Engineering and Technology for Digital Dentistry of Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Cheung HP, Wang SW, Ng TB, Zhang YB, Lao LX, Zhang ZJ, Tong Y, Chung FWS, Sze SCW. Comparison of chemical profiles and effectiveness between Erxian decoction and mixtures of decoctions of its individual herbs: a novel approach for identification of the standard chemicals. Chin Med 2017; 12:1. [PMID: 28053654 PMCID: PMC5209811 DOI: 10.1186/s13020-016-0123-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 12/19/2016] [Indexed: 11/24/2022] Open
Abstract
Background Identification of bioactive standard chemicals is a major challenge in the study of the Chinese medicinal formula. In particular, the chemical components may interact differently depending on the preparative methods, therefore affecting the amounts of bioactive components and their pharmacological properties in the medicinal formula. With the use of Erxian decoction (EXD) as a study model—a well-known Chinese medicinal formula for treating menopausal symptoms, a novel and rapid approach in seeking standard chemicals has been established by differentially comparing the HPLC profiles and the menopause-related biochemical parameters of combined decoction of EXD (EXD-C) and mixtures of the decoctions of its individual herbs (EXD-S). Methods The levels of six chemicals, which exerted actions on the HPO axis, have been measured in EXD-C and EXD-S by HPLC. Twelve-month-old female Sprague-Dawley rats were employed and treated with EXD-C and EXD-S. Their endocrine functions after treatment were evaluated by determining the ovarian mRNA levels of aromatase, a key enzyme for estradiol biosynthesis. The effect of the antioxidant regimen was determined by the hepatic superoxide dismutase-1 (SOD), catalase (CAT) and glutathione peroxidase (GPx-1) mRNA levels. Results The amounts of mangiferine, ferulic acid, jatrorrhizine and palmatine in EXD-S were twofold higher than those in EXD-C. EXD-S was more effective in stimulating ovarian aromatase and the expression of the antioxidant enzymes compared with EXD-C. Conclusion Mangiferine, ferulic acid, jatrorrhizine and palmatine are suitable for use as standard chemicals for quality evaluation of EXD according to our approach. EXD-S could be more effective than EXD-C.
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Affiliation(s)
- H P Cheung
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - S W Wang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - T B Ng
- School of Biomedical Science, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, SAR China
| | - Y B Zhang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - L X Lao
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - Z J Zhang
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - Y Tong
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - F W S Chung
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
| | - S C W Sze
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 10 Sassoon Road, Pokfulam, Hong Kong, SAR China
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Zheng JH, Jiao SJ, Na L, Zheng SQ, Ma ZH, Wang SW, Aili A, Hasim A. Defective expression of polarity protein Par3 promotes cervical tumorigenesis and metastasis. EUR J GYNAECOL ONCOL 2017; 38:199-206. [PMID: 29953780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVES The aim of this study was to investigate whether the partition-defective 3 protein (Par3) regulates cervical carcinoma growth and metastasis. MATERIALS AND METHODS Immunohistochemistry (IHC) was used to analyze the expression of Par3 protein in samples from 89 cervical squamous cell carcinoma (CSCC) patients among Uyghur women. The specific short hairpin (shRNA) vector as well as eu- karyotic expression vector of PARD3 was transfected into SiHa cell lines. The variation of migration and invasion after transfection was determined using Transwell assays, cell cycle, and apoptosis were assayed by flow cytometry, respectively. RESULTS The incidence of CSCC was associated with reduced expression of Par3. Downregulation of Par3 was significantly associated with more advanced tumors (i.e., higher histological grade, lymph node involvement, and higher tumor stages) (p < 0.05 for all). Lost expression of Par3 promotes prolif- eration, inhibits apoptosis, and enhances migration and invasion. Loss of Par3 induces MMP9 expression and epithelial to mesenchymal transition (EMT) related genes (N-cadherin, E-cadherin, and β-catenin) expression changed in SiHa cells. CONCLUSIONS The reduced Par3 expression in cervical cancer indicates tumor-suppressive properties of Par3 that may be a marker of poor prognosis in cervical cancer patients, and the molecular determinants of epithelial polarity which have tumorigenesis enhancing impact, might through EMT.
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Wang XH, Du HW, Guo XH, Wang SW, Zhou RB, Li Y, Li ZB, Zhao YS, Zhu QL. Rehmannia glutinosa oligosaccharide induces differentiation of bone marrow mesenchymal stem cells into cardiomyocyte-like cells. Genet Mol Res 2016; 15:gmr-15-gmr15047795. [PMID: 27813551 DOI: 10.4238/gmr15047795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to observe the effect of Rehmannia glutinosa oligosaccharide (RGO) on differentiation of bone marrow mesenchymal stem cells (MSCs) into cardiomyocyte-like cells . Rat MSCs were isolated, treated, and grouped as follows: RGO treatment group, 5-azacytidine (5-aza) treatment group, RGO + 5-aza treatment group, and control group. Following a four-week induction period, cardiac troponin I (cTnI) levels in MSCs were quantified by chemiluminescence, and the levels of myocardial enzymes creatine kinase (CK) and creatine kinase isoenzyme-MB (CK-MB) were measured using a dry chemistry analyzer. The cTnI- and connexin 43 (Cx43)-positive MSC population was identified by immunofluorescence, and expression levels of cTnI and Cx43 were analyzed by western blots. Following induction, cTnI, CK, and CK-MB levels were significantly higher in the RGO + 5-aza group as compared with the RGO and 5-aza groups (P < 0.05). In addition, fluorescence intensity of cTnI and Cx43 was higher in the RGO + 5-aza group as compared with the RGO and 5-aza groups. No cTnI- or Cx43-positive cells were detected in the control group. Western blot analysis further confirmed that cTnI and Cx43 were not expressed in the control group, while cTnI and Cx43 was higher in the RGO + 5-aza group than in the RGO and 5-aza groups. These results suggest that MSCs can be induced by RGO to differentiate into cardiomyocyte-like cells in vitro, and that RGO in combination with 5-aza enhance differentiation of MSCs.
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Affiliation(s)
- X H Wang
- Department of Emergency, Military General Hospital of Beijing PLA, Beijing, China
| | - H W Du
- Department of Medical, Military General Hospital of Beijing PLA, Beijing, China
| | - X H Guo
- Institute of Geriatric Cardiology, General Hospital of PLA, Beijing, China
| | - S W Wang
- Institute of Geriatric Cardiology, General Hospital of PLA, Beijing, China
| | - R B Zhou
- Department of Emergency, Military General Hospital of Beijing PLA, Beijing, China
| | - Y Li
- Institute of Geriatric Cardiology, General Hospital of PLA, Beijing, China
| | - Z B Li
- Institute of Geriatric Cardiology, General Hospital of PLA, Beijing, China
| | - Y S Zhao
- Institute of Geriatric Cardiology, General Hospital of PLA, Beijing, China
| | - Q L Zhu
- Institute of Geriatric Cardiology, General Hospital of PLA, Beijing, China
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Sun ZH, Wu ZZ, Dang WM, Wang SW, Lin L, Chu HL, Zhou JP, Zhou TH, Li SH, Yu X. [An investigation of mental health in migrant workers in an enterprise]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:591-595. [PMID: 27682666 DOI: 10.3760/cma.j.issn.1001-9391.2016.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mental health status in migrant workers in a labor-intensive enterprise and related influencing factors. Methods: Typical sampling was used to perform an investigation in 910 migrant workers in a large foreign-funded labor-intensive enterprise in Shenzhen, China. All the respondents gave informed consent and completed the questionnaire independently and anonymously. The self-reported mental health status was evaluated using the Beck Anxiety Inventory, Beck Depression Inventory, and General Health Questionnaire. Results: Of all the migrant workers in this enterprise, 7.2% had a positive self-reported anxiety symptom, 25.4% had a moderate or severe self-reported depression symptom, and 76.4% had a poor self-reported general health status. Age had significant influence on the self-reported depression symptom (χ2=21.968, P<0.05) ; age did not have significant influence on the self-reported anxiety and general health status (χ2=6.616、12.498, both P>0.05) . The knowledge of occupational hazards had significant influence on mental health status (χ2Depression=47.289, χ2General health=21.087, both P<0.05) . The feeling of work had significant influence on self-reported depression and general health status (χ2Depression=52.406, χ2General health=17.327, both P<0.05) . Attention to self mental health had significant influence on self-reported depression (χ2=17.714, P<0.05) , and whether the person wanted to learn the knowledge of mental health had significant influence on self-reported anxiety (χ2= 6.145, P<0.05) . Conclusion: The self-reported mental health status in migrant workers is poor and is associated with age, worry about exposure to occupational hazard factors, emphasis on mental health knowledge, and a focus on personal mental health. Therefore, targeted occupational health education and occupational mental health education should be strengthened.
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Affiliation(s)
- Z H Sun
- Qiqihar Medical University, Qiqihar 161006, China
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Abstract
A 51 year old woman with systemic lupus erythematosus (SLE) serially developed thrombocytopenia, arthritis, lupus nephritis, pleuritis, mesenteric vasculitis and refractory hemolytic anemia during the past 19 years prior to presentation. The woman had been managed with high doses of prednisolone, splenectomy, methylprednisolone pulse therapy and cytotoxic drugs, including oral cyclophosphamide, azathioprine, mexotrexate and monthly parenteral cyclophosphamide for hemolytic anemia. After two months of therapeutic trial with Cyclosporin A (CsA) (3 mg/kg), the follow-up hemoglobin (Hb) level was increased to 12.0 gm% and the dose of prednislone was reduced to 5 mg every other day without occurring rebound during the subsequent three months. There were no obvious side effects from the medication.
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Affiliation(s)
- S W Wang
- Section of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Chang Gung Memorial Hospital, Kaohsiung, Taiwan, ROC
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Li M, Wang SW, Huang S, Mao Y. [Relationship between the thyroid autoimmunity and the risk of preterm birth in pregnant women: a meta-analysis]. Zhonghua Fu Chan Ke Za Zhi 2016; 51:339-44. [PMID: 27256440 DOI: 10.3760/cma.j.issn.0529-567x.2016.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the relationship between thyroid autoimmunity and the risk of preterm birth. METHODS Literature search was done among PubMed, Embase, Wanfang Medical Database, China Academic Journal Network Publishing Database and China Biology Medicine disc from Jan. 1(st) 1980 to July 31(st), 2015. (1) Literature were extracted according to inclusion and exclusion standards, and the quality of the extracted literature were evaluated by Newcastle-Ottawa Scale (NOS). (2) Meta-analysis was performed by RevMan 5 software formulated by using the Cochrane library databases. Various heterogeneity of the research was inspected firstly. According to the results of the inspection a certain effect model was selected (including fixed effects model, the random effects model) to be utilized in merger analysis. In this study pregnant women with both thyroid peroxidase antibodies (TPO-Ab) and thyroglobulin (TG-Ab) positive were defined as thyroid antibody positive pregnant women. Pregnant women with only TPO-Ab positive were defined as TPO-Ab positive pregnant women. Then the relationship of antibody positive and the risk of a preterm birth was analyzed respectively. RESULTS (1) Ten cohort studies were enrolled, of which NOS scale score were 7 or higher. All the studies are of medium quality and above. A total of 1 322 cases of preterm birth occurred among 19 910 pregnant women. (2) Positive thyroid autoantibodies did not increase the risk of preterm birth in euthyroid pregnant women (OR=1.41, 95%CI: 0.83-2.40, P=0.200) or in pregnant women with hypothyroidism (OR=0.68, 95% CI: 0.32-1.44, P=0.310) . Positive TPO-Ab in euthyroid pregnant women increase the risk of preterm birth significantly (OR=2.08, 95%CI: 1.09-3.97, P=0.030), but positive TPO-Ab in pregnant women with hypothyroidism did not increase the risk of preterm birth significantly (OR=1.21, 95%CI: 0.65-2.24, P=0.550). CONCLUSION Positive TPO-Ab is an independent risk factor of preterm birth in euthyroid pregnant women.
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Affiliation(s)
- M Li
- Department of Obstetrics and Gynecology, Beijing Hospital, Beijing 100730, China
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Chou B, Mirau P, Jiang T, Wang SW, Shea KJ. Tuning Hydrophobicity in Abiotic Affinity Reagents: Polymer Hydrogel Affinity Reagents for Molecules with Lipid-like Domains. Biomacromolecules 2016; 17:1860-8. [DOI: 10.1021/acs.biomac.6b00296] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Beverly Chou
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Peter Mirau
- Air
Force Research Lab-Soft Matter Materials Branch (AFRL/RXAS), United States Air Force, Air Force Material Command, Wright-Patterson AFB, Fairborn, Ohio 45433, United States
| | - Tian Jiang
- Department
of Chemical Engineering and Materials Science, University of California, Irvine, California 92697-2575, United States
| | - Szu-Wen Wang
- Department
of Chemical Engineering and Materials Science, University of California, Irvine, California 92697-2575, United States
| | - Kenneth J. Shea
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
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Wang SW, Li M, Yang HF, Zhao YJ, Wang Y, Liu Y. [Evaluation of three methods for constructing craniofacial mid-sagittal plane based on the cone beam computed tomography]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:330-335. [PMID: 27080291] [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: 06/05/2023]
Abstract
OBJECTIVE To compare the accuracyof interactive closet point (ICP) algorithm, Procrustes analysis (PA) algorithm,and a landmark-independent method to construct the mid-sagittal plane (MSP) of the cone beam computed tomography.To provide theoretical basis for establishing coordinate systemof CBCT images and symmetric analysis. METHODS Ten patients were selected and scanned by CBCT before orthodontic treatment.The scan data was imported into Mimics 10.0 to reconstructthree dimensional skulls.And the MSP of each skull was generated by ICP algorithm, PA algorithm and landmark-independent method. MSP extracted by ICP algorithm or PA algorithm involvedthree steps. First, the 3D skull processing was performed by reverse engineering software geomagic studio 2012 to obtain the mirror skull. Then, the original and its mirror skull was registered separately by ICP algorithm in geomagic studio 2012 and PA algorithm in NX Imageware 11.0. Finally, the registered data were united into new data to calculate the MSP of the originaldata in geomagic studio 2012. The mid-sagittal plane was determined by SELLA (S), nasion (N), basion (Ba) as traditional landmark-dependent methodconducted in software InVivoDental 5.0. The distance from 9 pairs of symmetric anatomical marked points to three sagittal plane were measured and calculated to compare the differences of the absolute value. The one-way ANOVA test was used to analyze the variable differences among the 3 MSPs. The pairwise comparison was performed with LSD method. RESULTS MSPs calculated by the three methods were available for clinic analysis, which could be concluded from the front view.However, there was significant differences among the distances from the 9 pairs of symmetric anatomical marked points to the MSPs (F=10.932,P=0.001).LSD test showed there was no significant difference between the ICP algorithm and landmark-independent method (P=0.11), while there was significant difference between the PA algorithm and landmark-independent methods (P=0.01) . CONCLUSION Mid-sagittal plane of 3D skulls could be generated base on ICP algorithm or PA algorithm. There was no significant difference between the ICP algorithm and landmark-independent method. For the subjects with no evident asymmetry, ICP algorithm is feasible in clinical analysis.
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Affiliation(s)
- S W Wang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - M Li
- Department of Orthodontics, the Affiliated Hospital of Guizhou Medical University, Guiyang 550001, China
| | - H F Yang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y J Zhao
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y Wang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y Liu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
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Abstract
Cardiovascular and cerebrovascular diseases (CCVDs) are common and have high rates of morbidity, mortality, and recurrence. Thrombin-activatable fibrinolysis inhibitor (TAFI) is also known as carboxypeptidase B2 and is encoded by the CPB2 gene; CPB2 polymorphisms have been explored in a variety of studies, but their correlation to the risk of CCVDs remains ambiguous. We examined the hypothesized associations between CPB2 mutations and CCVDs in a general population. We searched, Embase, the Cumulative Index to Nursing and Allied Health Literature, the Science Citation Index, and several Chinese databases without applying any language restrictions. Nine case-control studies were analyzed in the current meta-analysis, and odds ratios (ORs) with their 95% confidence intervals were calculated. The pooled ORs indicated that the CPB2 rs3742264 G>A polymorphism was associated with an increased risk of CCVDs in the allele model (all P values < 0.05). A similar result for the CPB2 rs1926447 C>T polymorphism and CCVDs risk was detected in the allele model (P < 0.05). Ethnicity subgroup analysis implied that the rs3742264 G>A polymorphism was more likely to lead to the development of cerebrovascular disease in Asians (all P values < 0.05), whereas rs1926447 C>T was associated with cardiovascular disease among Africans (all P values < 0.05). These data suggest that the polymorphisms investigated, especially rs3742264 G>A and rs1926447 C>T, have a modest effect on susceptibility to CCVDs.
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Affiliation(s)
- S W Wang
- Emergency Department, Yantai Yuhuangding Hospital, Yantai, China
| | - H H Zhang
- Emergency Department, Yantai Yuhuangding Hospital, Yantai, China
| | - C Y Dong
- TCM and Chin & Wes. Ward, Yantai Yuhuangding Hospital, Yantai, China
| | - H H Sun
- Emergency Department, Yantai Yuhuangding Hospital, Yantai, China
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Molino NM, Neek M, Tucker JA, Nelson EL, Wang SW. Viral-mimicking protein nanoparticle vaccine for eliciting anti-tumor responses. Biomaterials 2016; 86:83-91. [PMID: 26894870 DOI: 10.1016/j.biomaterials.2016.01.056] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [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: 01/17/2016] [Accepted: 01/25/2016] [Indexed: 12/19/2022]
Abstract
The immune system is a powerful resource for the eradication of cancer, but to overcome the low immunogenicity of tumor cells, a sufficiently strong CD8(+) T cell-mediated adaptive immune response is required. Nanoparticulate biomaterials represent a potentially effective delivery system for cancer vaccines, as they can be designed to mimic viruses, which are potent inducers of cellular immunity. We have been exploring the non-viral pyruvate dehydrogenase E2 protein nanoparticle as a biomimetic platform for cancer vaccine delivery. Simultaneous conjugation of a melanoma-associated gp100 epitope and CpG to the E2 nanoparticle (CpG-gp-E2) yielded an antigen-specific increase in the CD8(+) T cell proliferation index and IFN-γ secretion by 1.5-fold and 5-fold, respectively, compared to an unbound peptide and CpG formulation. Remarkably, a single nanoparticle immunization resulted in a 120-fold increase in the frequency of melanoma epitope-specific CD8(+) T cells in draining lymph nodes and a 30-fold increase in the spleen, relative to free peptide with free CpG. Furthermore, in the very aggressive B16 melanoma murine tumor model, prophylactic immunization with CpG-gp-E2 delayed the onset of tumor growth by approximately 5.5 days and increased animal survival time by approximately 40%, compared to PBS-treated animals. These results show that by combining optimal particle size and simultaneous co-delivery of molecular vaccine components, antigen-specific anti-tumor immune responses can be significantly increased.
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Affiliation(s)
- Nicholas M Molino
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA
| | - Medea Neek
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA
| | - Jo Anne Tucker
- Department of Medicine, University of California, Irvine, CA 92697, USA
| | - Edward L Nelson
- Department of Medicine, University of California, Irvine, CA 92697, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697, USA; Institute for Immunology, University of California, Irvine, CA 92697, USA
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science, University of California, Irvine, CA 92697, USA; Chao Family Comprehensive Cancer Center, University of California, Irvine, CA 92697, USA; Department of Biomedical Engineering, University of California, Irvine, CA 92697, USA.
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Yue SL, Zhang YT, Wang SW, Sun M, Xing YC, Wen J, Zhou JB. EFFECT OF NAC ON MOUSE GV OOCYTE SURVIVAL AND SUBSEQUENT EMBRYONIC DEVELOPMENT FOLLOWING VITRFICATION. Cryo Letters 2016; 37:295-302. [PMID: 27925012] [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: 06/06/2023]
Abstract
BACKGROUND Oocytes that survive cryopreservation may accumulate ROS which are known to bring harmful effects on embryonic development. NAC is an antioxidant which can be a supplement to reduce oxidative stress. However, whether NAC can improve the developmental competence of vitrified GV-oocytes remains unclear. OBJECTIVE The study was to investigate the effect of NAC on subsequent embryonic developmental competence of mice vitrified GV-oocytes. MATERIALS AND METHODS This study compared the effects of different concentration of NAC on the cleavage and blastocyst rates of mice vitrified GV-oocytes. Then the effects of NAC on mitochondria distribution, ROS level and embryonic development of vitrified oocytes were tested. RESULTS ROS activity of vitrified oocytes was significantly annihilated and mitochondrial distribution pattern was improved by 1.5 mM NAC (P<0.05). NAC supplementation throughout vitrification/warming and IVM media significantly improved the developmental competence of vitrified oocytes. CONCLUSION Supplementation of NAC could partially overcome the damages by vitrification and improve the development ability of mice vitrified GV-oocytes.
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Affiliation(s)
- S L Yue
- College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | | | - S W Wang
- College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - M Sun
- College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Y C Xing
- College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - J Wen
- College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - J B Zhou
- College of Life Science, Northeast Agricultural University, Harbin, Heilongjiang, China.
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Huang PL, Hou MS, Wang SW, Chang CL, Liou YH, Liao NS. Skeletal muscle interleukin 15 promotes CD8(+) T-cell function and autoimmune myositis. Skelet Muscle 2015; 5:33. [PMID: 26417430 PMCID: PMC4584479 DOI: 10.1186/s13395-015-0058-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 09/08/2015] [Indexed: 12/30/2022] Open
Abstract
Background Interleukin 15 (IL-15) is thought to be abundant in the skeletal muscle under steady state conditions based on RNA expression; however, the IL-15 RNA level may not reflect the protein level due to post-transcriptional regulation. Although exogenous protein treatment and overexpression studies indicated IL-15 functions in the skeletal muscle, how the skeletal muscle cell uses IL-15 remains unclear. In myositis patients, IL-15 protein is up-regulated in the skeletal muscle. Given the supporting role of IL-15 in CD8+ T-cell survival and activation and the pathogenic role of cytotoxic CD8+ T cells in polymyositis and inclusion-body myositis, we hypothesize that IL-15 produced by the inflamed skeletal muscle promotes myositis via CD8+ T cells. Methods Expression of IL-15 and IL-15 receptors at the protein level by skeletal muscle cells were examined under steady state and cytokine stimulation conditions. The functions of IL-15 in the skeletal muscle were investigated using Il15 knockout (Il15−/−) mice. The immune regulatory role of skeletal muscle IL-15 was determined by co-culturing cytokine-stimulated muscle cells and memory-like CD8+ T cells in vitro and by inducing autoimmune myositis in skeletal-muscle-specific Il15−/− mice. Results We found that the IL-15 protein was not expressed by skeletal muscle cells under steady state condition but induced by tumor necrosis factor alpha (TNF-α) and interferon gamma (IFN-γ) stimulation and expressed as IL-15/IL-15 receptor alpha (IL-15Rα) complex. Skeletal muscle cells expressed a scanty amount of IL-15 receptor beta (IL-15Rβ) under either conditions and only responded to a high concentration of IL-15 hyperagonist, but not IL-15. Consistently, deficiency of endogenous IL-15 affected neither skeletal muscle growth nor its responses to TNF-α and IFN-γ. On the other hand, the cytokine-stimulated skeletal muscle cells presented antigen and provided IL-15 to promote the effector function of memory-like CD8+ T cells. Genetic ablation of Il15 in skeletal muscle cells greatly ameliorated autoimmune myositis in mice. Conclusions These findings together indicate that skeletal muscle IL-15 directly regulates immune effector cells but not muscle cells and thus presents a potential therapeutic target for myositis. Electronic supplementary material The online version of this article (doi:10.1186/s13395-015-0058-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Po-Lin Huang
- Molecular Cell Biology, Taiwan International Graduate Program, Institute of Molecular Biology, Academia Sinica, and Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan ; Institute of Molecular Biology, Academia Sinica, Taipei, 11529 Taiwan
| | - Mau-Sheng Hou
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529 Taiwan
| | - Szu-Wen Wang
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529 Taiwan
| | - Chin-Ling Chang
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529 Taiwan
| | - Yae-Huei Liou
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529 Taiwan
| | - Nan-Shih Liao
- Molecular Cell Biology, Taiwan International Graduate Program, Institute of Molecular Biology, Academia Sinica, and Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan ; Institute of Molecular Biology, Academia Sinica, Taipei, 11529 Taiwan
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Zhao XY, Yang ZB, Zhang ZJ, Zhang ZQ, Kang Y, Huang GX, Wang SW, Huang H, Liao WM. CCL3 serves as a potential plasma biomarker in knee degeneration (osteoarthritis). Osteoarthritis Cartilage 2015; 23:1405-11. [PMID: 25887364 DOI: 10.1016/j.joca.2015.04.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [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: 08/29/2014] [Revised: 03/06/2015] [Accepted: 04/02/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore the ability of chemokines in plasma to detect the presence of pre-X-rays defined knee degeneration and the extent (burden). METHODS A total of 181 subjects (75 control subjects, 47 pre-X-KD patients and 50 X-KOA patients) were included and subdivided into three subgroups. Articular cartilage loss in pre-X-KD patients were scored on the basis of the ICRS classification during the arthroscopy or documented on MRI with chondral WORMS. The severity of X-KOA was graded using the Kellgren-Lawrence classification through the posterior-anterior knee X-rays. The concentrations of the inflammatory cytokines and chemokines in plasma were quantified using Luminex microbead-based suspension array (SA) and were cross-validated by enzyme-linked immunosorbent assay (ELISA). RESULTS CCL3 in plasma showed the highest ability to discriminate pre-X-KD patients from the controls with an AUC of 0.799. At a cutoff value of 0.168 pg/ml, the sensitivity was 70.21%, the specificity was 96.00%, the positive predictive value was 91.67% and the negative predictive value was 83.72%. As to define disease burden, the plasma levels of resistin, IL6, IL8, CCL3 and CCL4 showed significant association with the severity of X-rays defined knee OA, with regard to the KL classification. Moreover, significant elevation of IL6, IL8, CCL3 and CCL4 levels in plasma were observed in severe knee OA patients (KL grade IV) compared with those with pre-X-KD (KL grade 0-I). CONCLUSION We firstly showed that the plasma CCL3 could be potential serum biomarker for knee OA with the capacity to detect pre-X-rays defined changes and stage the severity of damage in knee.
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Affiliation(s)
- X Y Zhao
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - Z B Yang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - Z J Zhang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - Z Q Zhang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China.
| | - Y Kang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - G X Huang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - S W Wang
- Department of Thyroid and Breast Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - H Huang
- Department of Laboratory Medicine, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China
| | - W M Liao
- Department of Orthopaedic Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, PR China.
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Abstract
A new strategy was developed to create multi-functionalizaton of protein nanoparticles using Sortase A-mediated ligation, resulting in modified protein nanoparticles that are both thermally responsive and catalytic active.
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Affiliation(s)
- Qi Chen
- Department of Chemical and Biomolecular Engineering
- University of Delaware
- Newark
- USA
| | - Qing Sun
- Department of Chemical and Biomolecular Engineering
- University of Delaware
- Newark
- USA
| | - Nicholas M. Molino
- Department of Chemical Engineering and Materials Science
- University of California
- Irvine
- USA
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science
- University of California
- Irvine
- USA
| | - Eric T. Boder
- Department of Chemical and Biomolecular Engineering
- University of Tennessee
- Knoxville
- USA
| | - Wilfred Chen
- Department of Chemical and Biomolecular Engineering
- University of Delaware
- Newark
- USA
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47
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Boys BL, Martin RV, van Donkelaar A, MacDonell RJ, Hsu NC, Cooper MJ, Yantosca RM, Lu Z, Streets DG, Zhang Q, Wang SW. Fifteen-year global time series of satellite-derived fine particulate matter. Environ Sci Technol 2014; 48:11109-18. [PMID: 25184953 DOI: 10.1021/es502113p] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Ambient fine particulate matter (PM2.5) is a leading environmental risk factor for premature mortality. We use aerosol optical depth (AOD) retrieved from two satellite instruments, MISR and SeaWiFS, to produce a unified 15-year global time series (1998-2012) of ground-level PM2.5 concentration at a resolution of 1° x 1°. The GEOS-Chem chemical transport model (CTM) is used to relate each individual AOD retrieval to ground-level PM2.5. Four broad areas showing significant, spatially coherent, annual trends are examined in detail: the Eastern U.S. (-0.39 ± 0.10 μg m(-3) yr(-1)), the Arabian Peninsula (0.81 ± 0.21 μg m(-3) yr(-1)), South Asia (0.93 ± 0.22 μg m(-3) yr(-1)) and East Asia (0.79 ± 0.27 μg m(-3) yr(-1)). Over the period of dense in situ observation (1999-2012), the linear tendency for the Eastern U.S. (-0.37 ± 0.13 μg m(-3) yr(-1)) agrees well with that from in situ measurements (-0.38 ± 0.06 μg m(-3) yr(-1)). A GEOS-Chem simulation reveals that secondary inorganic aerosols largely explain the observed PM2.5 trend over the Eastern U.S., South Asia, and East Asia, while mineral dust largely explains the observed trend over the Arabian Peninsula.
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Affiliation(s)
- B L Boys
- Dalhousie University , Halifax, Nova Scotia Canada
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Que R, Mohraz A, Da Silva NA, Wang SW. Expanding functionality of recombinant human collagen through engineered non-native cysteines. Biomacromolecules 2014; 15:3540-9. [PMID: 25144412 DOI: 10.1021/bm500735d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Collagen is the most abundant protein in extracellular matrices and is commonly used as a tissue engineering scaffold. However, collagen and other biopolymers from native sources can exhibit limitations when tuning mechanical and biological properties. Cysteines do not naturally occur within the triple-helical region of any native collagen. We utilized a novel modular synthesis strategy to fabricate variants of recombinant human collagen that contained 2, 4, or 8 non-native cysteines at precisely defined locations within each biopolymer. This bottom-up approach introduced capabilities using sulfhydryl chemistry to form hydrogels and immobilize bioactive factors. Collagen variants retained their triple-helical structure and supported cellular adhesion. Hydrogels were characterized using rheology, and the storage moduli were comparable to fibrillar collagen gels at similar concentrations. Furthermore, the introduced cysteines functioned as anchoring sites, with TGF-β1-conjugated collagens promoting myofibroblast differentiation. This approach demonstrates the feasibility to produce custom-designed collagens with chemical functionality not available from native sources.
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Affiliation(s)
- Richard Que
- Department of Biomedical Engineering and ‡Department of Chemical Engineering and Materials Science, University of California , Irvine, California 92697, United States
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49
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Abstract
Nanomaterials that are used in therapeutic applications need a high degree of uniformity and functionality which can be difficult to attain. One strategy for fabrication is to utilize the biological precision afforded by recombinant synthesis. Through protein engineering, we have produced ~27-nm dodecahedral protein nanoparticles using the thermostable E2 subunit of pyruvate dehydrogenase as a scaffold and added optical imaging, drug delivery, and tumor targeting capabilities. Cysteines in the internal cavity of the engineered caged protein scaffold (E2 variant D381C) were conjugated with maleimide-bearing Alexa Fluor 532 (AF532) and doxorubicin (DOX). The external surface was functionalized with polyethylene glycol (PEG) alone or with the tumor-targeting ligand folic acid (FA) through a PEG linker. The resulting bi-functional nanoparticles remained intact and correctly assembled. The uptake of FA-displaying nanoparticles (D381C-AF532-PEG-FA) by cells overexpressing the folate receptor was approximately six times greater than of non-targeting nanoparticles (D381C-AF532-PEG) and was confirmed to be FA-specific. Nanoparticles containing DOX were all cytotoxic in the low micromolar range. To our knowledge, this work is the first time that acid-labile drug release and folate receptor targeting have been simultaneously integrated onto recombinant protein nanoparticles, and it demonstrates the potential of using biofabrication strategies to generate functional nanomaterials.
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Affiliation(s)
- Dongmei Ren
- Department of Chemical Engineering and Materials Science University of California, 916 Engineering Tower, Irvine, CA 92697-2575, USA
| | - Felix Kratz
- Tumor Biology Center, Division of Macromolecular Prodrugs Breisacher Strasse 117, D-79106 Freiburg, Germany
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science University of California, 916 Engineering Tower, Irvine, CA 92697-2575, USA
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50
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Abstract
Caged protein nanoparticles possess many desirable features for drug delivery, such as ideal sizes for endocytosis, non-toxic biodegradability, and the ability to functionalize at three distinct interfaces (external, internal, and inter-subunit) using the tools of protein engineering. Researchers have harnessed these attributes by covalently and non-covalently loading therapeutic molecules through mechanisms that facilitate release within specific microenvironments. Effective delivery depends on several factors, including specific targeting, cell uptake, release kinetics, and systemic clearance. The innate ability of the immune system to recognize and respond to proteins has recently been exploited to deliver therapeutic compounds with these platforms for immunomodulation. The diversity of drugs, loading/release mechanisms, therapeutic targets, and therapeutic efficacy are discussed in this review.
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Affiliation(s)
- Nicholas M Molino
- Department of Chemical Engineering and Materials Science, University of California, 916 Engineering Tower, Irvine, CA 92697-2575, United States
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science, University of California, 916 Engineering Tower, Irvine, CA 92697-2575, United States.
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