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Cheng KC, Chong PCT, Hsieh CC, Lin YT, Ye CH, Khumsupan D, Lu JJ, Yu WC, Cheng KW, Yap KY, Kou WS, Cheng MT, Hsu CC, Sheen LY, Lin SP, Wei AC, Yu SH. Identification of anti-fibrotic and pro-apoptotic bioactive compounds from Ganoderma formosanum and their possible mechanisms in modulating TGF-β1-induced lung fibrosis. J Ethnopharmacol 2024; 327:118008. [PMID: 38458343 DOI: 10.1016/j.jep.2024.118008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/28/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Compendium of Materia Medica and the Classic of Materia Medica, the two most prominent records of traditional Chinese medicine, documented the therapeutic benefits of Ganoderma sinense particularly in addressing pulmonary-related ailments. Ganoderma formosanum, an indigenous subspecies of G. sinense from Taiwan, has demonstrated the same therapeutic properties. AIM OF THE STUDY The aim of this study is to identify bioactive compounds and evaluate the potential of G. formosanum extracts as a novel treatment to alleviate pulmonary fibrosis (PF). Using an in-house drug screening platform, two-stage screening was performed to determine their anti-fibrotic efficacy. METHODS AND MATERIALS G. formosanum was fractionated into four partitions by solvents of different polarities. To determine their antifibrotic and pro-apoptotic properties, the fractions were analyzed using two TGF-β1-induced pulmonary fibrosis cell models (NIH-3T3) and human pulmonary fibroblast cell lines, immunoblot, qRT-PCR, and annexin V assays. Subsequently, transcriptomic analysis was conducted to validate the findings and explore possible molecular pathways. The identification of potential bioactive compounds was achieved through UHPLC-MS/MS analysis, while molecular interaction study was investigated by multiple ligands docking and molecular dynamic simulations. RESULTS The ethyl acetate fraction (EAF) extracted from G. formosanum demonstrated substantial anti-fibrotic and pro-apoptotic effects on TGF-β1-induced fibrotic models. Moreover, the EAF exhibited no discernible cytotoxicity. Untargeted UHPLC-MS/MS analysis identified potential bioactive compounds in EAF, including stearic acid, palmitic acid, and pentadecanoic acid. Multiple ligands docking and molecular dynamic simulations further confirmed that those bioactive compounds possess the ability to inhibit TGF-β receptor 1. CONCLUSION Potential bioactive compounds in G. formosanum were successfully extracted and identified in the EAF, whose anti-fibrotic and pro-apoptotic properties could potentially modulate pulmonary fibrosis. This finding not only highlights the EAF's potential as a promising therapeutic candidate to treat pulmonary fibrosis, but it also elucidates how Ganoderma confers pulmonary health benefits as described in the ancient texts.
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Affiliation(s)
- Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C; Institute of Food Science Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C; Department of Optometry, Asia University, No. 500, Lioufeng Rd., Wufeng, Taichung, Taiwan. R.O.C; Department of Medical Research, China Medical University Hospital, China Medical University, No. 91, Hsueh-Shih Rd., Taichung, Taiwan. R.O.C
| | - Patrick Chun Theng Chong
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Chen-Che Hsieh
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Yu-Te Lin
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan. R.O.C
| | - Chih-Hung Ye
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Darin Khumsupan
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Jheng-Jhe Lu
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Wei-Chieh Yu
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Kai-Wen Cheng
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Kah Yi Yap
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Weng Si Kou
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Meng-Tsung Cheng
- School of Pharmacy, College of Medicine, National Taiwan University, No.33, Linsen S. Rd., Taipei, 100025, Taiwan. R.O.C
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C; Leeuwenhoek Laboratories Co. Ltd., No. 71, Fanglan Rd, Taipei, 106038, Taiwan. R.O.C
| | - Lee-Yan Sheen
- Institute of Food Science Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C
| | - Shin-Ping Lin
- School of Food Safety, Taipei Medical University, No. 250, Wu-Hsing Street, Taipei, Taiwan. R.O.C
| | - An-Chi Wei
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan. R.O.C
| | - Shu-Han Yu
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan. R.O.C.
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Hsu WH, Cheng KW, Feng TH, Chen JY, Chen GY, Chen LY, Weng TI, Hsu CC. Rapid Screening of New Psychoactive Substances Using pDART-QqQ-MS. J Am Soc Mass Spectrom 2024. [PMID: 38652738 DOI: 10.1021/jasms.4c00124] [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] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Drug abuse is a severe social problem worldwide. Particularly, the issue of new psychoactive substances (NPSs) have increasingly emerged. NPSs are structural or functional analogs of traditional illicit drugs, such as cocaine, cannabis, and amphetamine; these molecules provide the same or more severe neurological effects. Usually, immunoassays are utilized in the preliminary screening method. However, NPSs have poor detectability in commercially available immunoassay kits. Meanwhile, various chromatography combined with the mass spectrometry platform have been developed to quantify NPSs. Still, a significant amount of time and resources are required during these procedures. Therefore, we established a rapid analytical platform for NPSs employing paper-loaded direct analysis in real time triple quadrupole mass spectrometry (pDART-QqQ-MS). We implemented this platform for the semiquantitative analysis of forensic drug tests in urine. This platform significantly shrinks the analytical time of a single sample within 30 s and requires a low volume of the specimen. The platform can detect 21 NPSs in urine mixtures at a lower limit of qualification of concentration ranging from 20 to 75 nanograms per milliliter (ng mL-1) and is lower than the cutoff value of currently available immune-based devices for detecting multiple drugs (1000 ng mL-1). Urine samples from drug addicts have been collected to verify the platform's effectiveness. By combining efficiency and accuracy, our platform offers a promising solution for addressing the challenges posed by NPSs in drug abuse detection.
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Affiliation(s)
- Wei-Hsin Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Kai-Wen Cheng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Tzu-Hsuan Feng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ju-Yu Chen
- Forensic and Clinical Toxicology Center National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei 10051, Taiwan
| | - Guan-Yuan Chen
- Forensic and Clinical Toxicology Center National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei 10051, Taiwan
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Lian-Yu Chen
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei 10051, Taiwan
- Kunming Prevention and Control Center, Taipei City Hospital, Taipei 108203, Taiwan
| | - Te I Weng
- Forensic and Clinical Toxicology Center National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei 10051, Taiwan
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Leeuwenhoek Laboratories Co. Ltd., No. 71, Fanglan Rd, Taipei, 106038, Taiwan
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Iacomino M, Houerbi N, Fortuna S, Howe J, Li S, Scorrano G, Riva A, Cheng KW, Steiman M, Peltekova I, Yusuf A, Baldassari S, Tamburro S, Scudieri P, Musante I, Di Ludovico A, Guerrisi S, Balagura G, Corsello A, Efthymiou S, Murphy D, Uva P, Verrotti A, Fiorillo C, Delvecchio M, Accogli A, Elsabbagh M, Houlden H, Scherer SW, Striano P, Zara F, Chou TF, Salpietro V. Allelic heterogeneity and abnormal vesicle recycling in PLAA-related neurodevelopmental disorders. Front Mol Neurosci 2024; 17:1268013. [PMID: 38650658 PMCID: PMC11033462 DOI: 10.3389/fnmol.2024.1268013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/16/2024] [Indexed: 04/25/2024] Open
Abstract
The human PLAA gene encodes Phospholipase-A2-Activating-Protein (PLAA) involved in trafficking of membrane proteins. Through its PUL domain (PLAP, Ufd3p, and Lub1p), PLAA interacts with p97/VCP modulating synaptic vesicles recycling. Although few families carrying biallelic PLAA variants were reported with progressive neurodegeneration, consequences of monoallelic PLAA variants have not been elucidated. Using exome or genome sequencing we identified PLAA de-novo missense variants, affecting conserved residues within the PUL domain, in children affected with neurodevelopmental disorders (NDDs), including psychomotor regression, intellectual disability (ID) and autism spectrum disorders (ASDs). Computational and in-vitro studies of the identified variants revealed abnormal chain arrangements at C-terminal and reduced PLAA-p97/VCP interaction, respectively. These findings expand both allelic and phenotypic heterogeneity associated to PLAA-related neurological disorders, highlighting perturbed vesicle recycling as a potential disease mechanism in NDDs due to genetic defects of PLAA.
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Affiliation(s)
- Michele Iacomino
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Nadia Houerbi
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Sara Fortuna
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, Italy
| | - Jennifer Howe
- Genetics and Genome Biology, The Hospital for Sick Children, Toronto, ON, Canada
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Giovanna Scorrano
- Department of Pediatrics, Sant'Annunziata Hospital, University "G. D'Annunzio", Chieti, Italy
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Antonella Riva
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Mandy Steiman
- Montreal Neurological Institute-Hospital, Azrieli Centre for Autism Research, McGill University, Montreal, QC, Canada
| | - Iskra Peltekova
- McGill University Health Centre, McGill University, Montreal, QC, Canada
| | - Afiqah Yusuf
- Montreal Neurological Institute-Hospital, Azrieli Centre for Autism Research, McGill University, Montreal, QC, Canada
| | - Simona Baldassari
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Serena Tamburro
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Paolo Scudieri
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Ilaria Musante
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Armando Di Ludovico
- Department of Pediatrics, Sant'Annunziata Hospital, University "G. D'Annunzio", Chieti, Italy
| | - Sara Guerrisi
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Ganna Balagura
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Antonio Corsello
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Stephanie Efthymiou
- Department of Neuromuscular Diseases, UCL Institute of Neurology, London, United Kingdom
| | - David Murphy
- Department of Neuromuscular Diseases, UCL Institute of Neurology, London, United Kingdom
| | - Paolo Uva
- Clinical Bioinformatics Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Chiara Fiorillo
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
- Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Maurizio Delvecchio
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Andrea Accogli
- Division of Medical Genetics, Department of Specialized Medicine, McGill University, Montreal, QC, Canada
| | - Mayada Elsabbagh
- Montreal Neurological Institute-Hospital, Azrieli Centre for Autism Research, McGill University, Montreal, QC, Canada
| | - Henry Houlden
- Department of Neuromuscular Diseases, UCL Institute of Neurology, London, United Kingdom
| | - Stephen W Scherer
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
- McLaughlin Centre, University of Toronto, Toronto, ON, Canada
| | - Pasquale Striano
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Federico Zara
- Unit of Medical Genetics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, United States
- Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA, United States
| | - Vincenzo Salpietro
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
- Department of Neuromuscular Diseases, UCL Institute of Neurology, London, United Kingdom
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Cheng KW, Liber AC, Levy DT. Cross-state Border Nicotine Vaping Products Purchase - Early Evidence from State Emergency Sales Restrictions in 2019. Nicotine Tob Res 2024:ntae017. [PMID: 38297975 DOI: 10.1093/ntr/ntae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Indexed: 02/02/2024]
Abstract
INTRODUCTION While retail sales and retailer inspection studies generally indicate high compliance with state sales restrictions on Nicotine Vaping Products (NVPs) within the restricted area, studies using survey data generally indicate that most users could readily continue gaining access to restricted NVPs. Our study bridges a gap in the current literature and investigates the potential role of cross-state border purchases to evade state emergency NVP sales restrictions in 2019. METHODS The study sample was restricted to NVP sales from the states neighboring Massachusetts (MA), Rhode Island (RI), and Washington (WA), three states that implemented all NVP or flavored NVP sales restrictions in 2019. Among these neighboring states, the 2019 weekly county-level NVP sales by flavors (tobacco, mint/menthol, and other flavors) were compiled using Nielsen Scanner data. A quasi-experimental, comparison group pre-post study design was used to study the impacts of NVP sales restrictions on cross-state border NVP purchases. RESULTS Weekly NVP sales for border counties significantly increased in response to the MA, RI, and WA bans for tobacco flavored (56%, 45%, 14%, respectively), menthol/mint flavored (51%, 2%, 41%, respectively), and other flavored (79%, 3%, 4%, respectively) products, compared to sales for non-border counties (all p-values <0.01). CONCLUSIONS Our study identified significant cross-state border NVP purchases in all studied states to circumvent NVP emergency sales restrictions in response to the EVALI outbreak. Policymakers should factor in these purchasing behaviors to evade sales restrictions when evaluating any future potential policies at the state or local levels. IMPLICATIONS While retail sales data and retailer inspections indicate high compliance with Nicotine Vaping Product (NVP) flavor sales restrictions from major retail outlets, survey data obtain mixed findings on the effects of sales restrictions on vaping behaviors. Our study identified a significant increase in cross-state border NVP purchases to circumvent NVP sales restrictions in 2019, consistent across all three settings of Massachusetts, Rhode Island, and Washington. Policymakers should factor in these cross-state border NVP purchases in response to sales restrictions when evaluating any future potential NVP sales restrictions.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Health Administration and Informatics, Governors State University, University Park, IL, USA
| | - Alex C Liber
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - David T Levy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
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Cheng KW, Su PR, Feller KJA, Chien MP, Hsu CC. Investigating the Metabolic Heterogeneity of Cancer Cells Using Functional Single-Cell Selection and nLC Combined with Multinozzle Emitter Mass Spectrometry. Anal Chem 2024; 96:624-629. [PMID: 38157203 DOI: 10.1021/acs.analchem.3c03688] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Tumor metastasis and cancer recurrence are often a result of cell heterogeneity, where specific subpopulations of tumor cells may be resistant to radio- or chemotherapy. To investigate this physiological and phenotypic diversity, single-cell metabolomics provides a powerful approach at the chemical level, where distinct lipid profiles can be found in different tumor cells. Here, we established a highly sensitive platform using nanoflow liquid chromatography (nLC) combined with multinozzle emitter electrospray ionization mass spectrometry for more in-depth metabolomics profiling. Our platform identified 15 and 17 lipids from individual osteosarcoma (U2OS) and glioblastoma (GBM) cells when analyzing single-cell samples. Additionally, we used the functional single-cell selection (fSCS) pipeline to analyze the subpopulations of cells with a DNA damage response (DDR) in U2OS cells and fast migration in GBM cells. Specifically, we observed a down-regulation of polyunsaturated fatty acids (PUFAs) in U2OS cells undergoing DDR, such as fatty acids FA 20:3; O2 and FA 17:4; O3. Furthermore, ceramides (Cer 38:0; O3) and triglycerides (TG 36:0) were found to be down-regulated in fast-migrating GBM cells compared to the slow-migrating subpopulation. These findings suggest the potential roles of these metabolites and/or lipids in the cellular behavior of the subpopulations.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Pin-Rui Su
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Department of Molecular Genetics, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
- Oncode Institute, 3521 AL Utrecht, The Netherlands
| | - Kate Jo-Ann Feller
- Department of Molecular Genetics, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
- Oncode Institute, 3521 AL Utrecht, The Netherlands
| | - Miao-Ping Chien
- Department of Molecular Genetics, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands
- Oncode Institute, 3521 AL Utrecht, The Netherlands
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
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Hsieh CC, Yu SH, Kuo HC, Cheng KW, Hsu CC, Lin YP, Khumsupan D, Lin SP, Angkawijaya AE, Cheng KC. Alleviation of PM2.5-induced alveolar macrophage inflammation using extract of fermented Chenopodium formosanum Koidz sprouts via regulation of NF-κB pathway. J Ethnopharmacol 2024; 318:116980. [PMID: 37536644 DOI: 10.1016/j.jep.2023.116980] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Particulate matter 2.5 (PM2.5) is a dangerous airborne pollutant that has become a global issue due to its detrimental effect on macrophages. Chenopodium formosanum Koidz (Djulis), a native plant from Taiwan well known for its high antioxidant content and is frequently used in ethnomedicine, shows promise as a novel phytomedicine to combat against oxidative stress caused by PM2.5. However, the protective mechanism of Djulis against PM2.5 still remains unclear. AIM OF THE STUDY This study aimed to characterize the deleterious effect of emerging PM2.5 contaminants on the alveolar macrophage cell of the respiratory system and explore the underlying mechanisms in the suppression of PM2.5-induced inflammation using the extract of fermented Djulis. METHODS AND MATERIALS RNA sequencing, immunoblot, and ChIP assay approaches were used to gain insight into the deleterious effect of PM2.5 on the macrophage cell at the transcriptional and translational level; and to elucidate the contribution of fermented Djulis extract (FCS) as the remedy of PM-induced MH-S cell inflammation. UHPLC-ESI-MS/MS and LC-QQQ/MS were used to identify the bioactive compounds potentially contributing to phytomedicinal properties in the water fraction of FCS. Multiple ligands docking analysis was conducted to predict the in-silico interaction of Djulis metabolites and NF-κB. RESULTS Here, we showed that PM2.5 exposure at 200 ppm accelerated the production of intracellular ROS and phosphorylated NF-κB (p-NFκB), and negatively affecting the alveolar macrophage cell viability. Treating the cells with water-extracted FCS can restore their viability to 76% while simultaneously suppressing the generation of ROS and p-NFκB up to 38%. These ameliorative effects can be attributed to the occurrence of bioactive compounds such as gluconic acid, uridine, pantothenic acid, L-pyroglutamic acid, L-(-)-malic acid, and acetyl-L-carnitine in the water-extracted FCS which potentially dock to the RELA subunit site and consequently inhibit NF-κB activity along with its downstream inflammation signaling cascade. CONCLUSION This work demonstrated the hazardous effect of PM2.5 on alveolar macrophage and unveiled the potential of FCS as a therapeutic phytomedicine to alleviate PM-induced inflammation.
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Affiliation(s)
- Chen-Che Hsieh
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC
| | - Shu-Han Yu
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC
| | - Hsing-Chun Kuo
- Division of Basic Medical Sciences, Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan, ROC
| | - Kai-Wen Cheng
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
| | - Yi-Pin Lin
- Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan, ROC
| | - Darin Khumsupan
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC
| | - Shin-Ping Lin
- School of Food Safety, Taipei Medical University, 250 Wu-Hsing Street, Taipei, Taiwan, ROC
| | | | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC; Institute of Food Science Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, Taiwan, ROC; Department of Optometry, Asia University, 500, Lioufeng Rd., Wufeng, Taichung, Taiwan, ROC; Department of Medical Research, China Medical University Hospital, China Medical University, 91, Hsueh-Shih Road, Taichung, Taiwan, ROC.
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Cheng KW, Shih HM, Ng CJ, Shih CL, Chen WK. National emergency medical teleconsultation: A novel system applied during the COVID-19 pandemic in Taiwan. J Telemed Telecare 2023:1357633X231217326. [PMID: 38128920 DOI: 10.1177/1357633x231217326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
OBJECTIVE Telemedicine can facilitate social distancing during an infectious disease pandemic and reduce the burden on health-care resources. Moreover, telemedicine can be utilized for medical care in remote island regions, in home health care, and during isolated major disasters such as regional earthquakes. However, the effectiveness of telemedicine for emergency consultation remains unclear. This study introduced and analyzed the national emergency medical teleconsultation (NEMTC) established in Taiwan in 2022 during the COVID-19 pandemic. METHODS In response to the COVID-19 pandemic, Taiwan's Centers for Disease Control established a temporary 24-h NEMTC contingency system. Patient information was collected from consultations through the NEMTC from April 28 to June 28, 2022. After successful consultation, physicians made recommendations for home observation, emergency department (ED) visit, or outpatient follow-up. ED visits were divided into two categories, namely self-transport and transport, by the emergency medical service system (EMSS). RESULTS During the aforementioned period, 20,902 consultation requests were made through the NEMTC, and 11,804 consultations (56.5% of 20,902) were successful. Consultation success rates were significantly higher for those who had a consultation between 08:00 and 16:00, had a waiting time of less than 10 min, and were not aged between 18 and 45 years. Moreover, 8.2% of the analyzed patients were advised to visit the ED, and only 0.4% required ambulance transportation. Children and older individuals and patients with cardiovascular symptoms, shortness of breath, or neurological or abdominal symptoms had a significantly higher chance of being referred to the ED than did other individuals. CONCLUSIONS The NEMTC response system can enhance the efficiency of the EMSS and can reduce the burden of patients with mild conditions overloading the EMSS and EDs. The NEMTC could serve as an effective rapid response system during future pandemics.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Hong-Mo Shih
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Public Health, China Medical University, Taichung, Taiwan
| | - Chip-Jin Ng
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Chung-Liang Shih
- Ministry of Health and Welfare, National Health Insurance Administration, Taipei, Taiwan
| | - Wei-Kung Chen
- Department of Emergency Medicine, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
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Tan CH, Cheng KW, Park H, Chou TF, Sternberg PW. LINKIN-associated proteins necessary for tissue integrity during collective cell migration. bioRxiv 2023:2023.02.08.527750. [PMID: 36798316 PMCID: PMC9934607 DOI: 10.1101/2023.02.08.527750] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cell adhesion plays essential roles in almost every aspect of metazoan biology. LINKIN (Human: ITFG1, Caenorhabditis elegans: lnkn-1) is a conserved transmembrane protein that has been identified to be necessary for tissue integrity during migration. In C. elegans, loss of lnkn-1 results in the detachment of the lead migratory cell from the rest of the developing male gonad. Previously, three interactors of ITFG1/lnkn-1 - RUVBL1/ruvb-1, RUVBL2/ruvb-2, and alpha-tubulin - were identified by immunoprecipitation-mass spectrometry (IP-MS) analysis using human HEK293T cells and then validated in the nematode male gonad. The ITFG1-RUVBL1 interaction has since been independently validated in a breast cancer cell line model that also implicates the involvement of the pair in metastasis. Here, we showed that epitope-tagged ITFG1 localized to the cell surface of MDA-MB-231 breast cancer cells. Using IP-MS analysis, we identified a new list of potential interactors of ITFG1. Loss-of-function analysis of their C. elegans orthologs found that three of the interactors - ATP9A/tat-5, NME1/ndk-1, and ANAPC2/apc-2 - displayed migratory detachment phenotypes similar to that of lnkn-1. Taken together with the other genes whose reduction-of-function phenotype is similar to that of lnkn-1 (notably cohesion and condensin), suggests the involvement of membrane remodeling and chromosome biology in LINKIN-dependent cell adhesion and supports the hypothesis for a structural role of chromosomes in post-mitotic cells.
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Affiliation(s)
- Chieh-Hsiang Tan
- Division of Biology and Biological Engineering, California Institute of Technology
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology
| | - Heenam Park
- Division of Biology and Biological Engineering, California Institute of Technology
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology
- Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology
| | - Paul W. Sternberg
- Division of Biology and Biological Engineering, California Institute of Technology
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9
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Fann LY, Cheng CC, Chien YC, Hsu CW, Chien WC, Huang YC, Chung RJ, Huang SH, Jiang YH, Yin SH, Cheng KW, Wu YP, Hsiao SH, Hsu SY, Huang YC, Chu CM. Effect of far-infrared radiation on inhibition of colonies on packaging during storage of sterilised surgical instruments. Sci Rep 2023; 13:8490. [PMID: 37231027 DOI: 10.1038/s41598-023-35352-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
The sterilisation of surgical instruments is a major factor in infection control in the operating room (OR). All items used in the OR must be sterile for patient safety. Therefore, the present study evaluated the effect of far-infrared radiation (FIR) on the inhibition of colonies on packaging surface during the long-term storage of sterilised surgical instruments. From September 2021 to July 2022, 68.2% of 85 packages without FIR treatment showed microbial growth after incubation at 35 °C for 30 days and at room temperature for 5 days. A total of 34 bacterial species were identified, with the number of colonies increasing over time. In total, 130 colony-forming units were observed. The main microorganisms detected were Staphylococcus spp. (35%) and Bacillus spp. (21%) , Kocuria marina and Lactobacillus spp. (14%), and mould (5%). No colonies were found in 72 packages treated with FIR in the OR. Even after sterilisation, microbial growth can occur due to movement of the packages by staff, sweeping of floors, lack of high-efficiency particulate air filtration, high humidity, and inadequate hand hygiene. Thus, safe and simple far-infrared devices that allow continuous disinfection for storage spaces, as well as temperature and humidity control, help to reduce microorganisms in the OR.
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Affiliation(s)
- Li-Yun Fann
- Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan
- Department of Nurse-Midwifery and Women Health, National Taipei University of Nursing and Health Sciences, Taipei, 11220, Taiwan
- School of Public Health, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Chih-Chien Cheng
- Univeraity of Taipei, Taipei, 10048, Taiwan
- Department of Obstetrics/Gynecology, Taipei City Hospital, Taipei, 10341, Taiwan
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, 242062, Taiwan
| | - Yung-Chen Chien
- Department of Inspection, Taipei City Hospital, Ren-Ai Branch, Taipei, 10629, Taiwan
| | - Cheng-Wei Hsu
- Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan
| | - Wu-Chien Chien
- School of Public Health, National Defense Medical Center, Taipei, 11490, Taiwan
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, 11490, Taiwan
- Department of Medical Research, Tri-Service General Hospital, Taipei, 11490, Taiwan
| | - Yao-Ching Huang
- School of Public Health, National Defense Medical Center, Taipei, 11490, Taiwan
- Department of Medical Research, Tri-Service General Hospital, Taipei, 11490, Taiwan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Shi-Hao Huang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei, 10608, Taiwan
| | - Ying-Hua Jiang
- Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan
| | - Shih-Han Yin
- Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan
| | - Kai-Wen Cheng
- Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan
| | - Yi-Ping Wu
- Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan
| | - Sheng-Huang Hsiao
- Department of Neurosurgery, Taipei City Hospital, Ren-Ai Branch, Taipei, 10629, Taiwan.
| | - Shao-Yuan Hsu
- Department of Neurosurgery, Taipei City Hospital, Ren-Ai Branch, Taipei, 10629, Taiwan.
| | - Ying-Che Huang
- Department of Anesthesia and Critical Care Medicine, Taipei City Hospital, Ren-Ai Branch, Taipei, 10629, Taiwan.
| | - Chi-Ming Chu
- School of Public Health, National Defense Medical Center, Taipei, 11490, Taiwan.
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, 11490, Taiwan.
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10
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Cheng KW, Chen HY, Huang CF, Wang TH, Yu JH. Lactic acidosis in a patient who ingested rotenone-containing beans ( Pachyrhizus erosus). Clin Toxicol (Phila) 2023; 61:316-317. [PMID: 36988456 DOI: 10.1080/15563650.2023.2185495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Affiliation(s)
- Kai-Wen Cheng
- Department of Clinical Toxicology and Occupational Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hsien-Yi Chen
- Department of Emergency Medicine, Chang Gung Memorial Hospital, Linkou, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Fa Huang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Nursing, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Te-Hao Wang
- Department of Emergency Medicine, National Yang-Ming University Hospital, Ilan, Taiwan
| | - Jiun-Hao Yu
- Department of Emergency Medicine, China Medical University Hsinchu Hospital, China Medical University, Hsinchu, Taiwan
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11
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Hsieh CC, Yu SH, Cheng KW, Liou YW, Hsu CC, Hsieh CW, Kuo CH, Cheng KC. Production and analysis of metabolites from Solid-State Fermentation of Chenopodium formosanum (Djulis) Sprouts in a Bioreactor. Food Res Int 2023; 168:112707. [PMID: 37120190 DOI: 10.1016/j.foodres.2023.112707] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/07/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023]
Abstract
The study utilized fresh fourth-day Chenopodium formosanum sprouts as the substrate for Rhizopus oligosporus fermentation. The resultant products showed higher antioxidant capacity than those from C. formosanum grains. Compared to traditional plate fermentation (PF), fermentation in a bioreactor (BF) (35 °C, 0.4 vvm aeration at 5 rpm) led to higher free peptide content (99.56 ± 7.77 mg casein tryptone/g) and enzyme activity (amylase, glucosidase, and proteinase are 2.21 ± 0.01, 54.57 ± 10.88, and 40.81 ± 6.52 U/g, respectively) than traditional plate fermentation (PF). Using mass spectrometry analysis, two peptides TDEYGGSIENRFMN and DNSMLTFEGAPVQGAAAITEK were predicted to possess high bioactive properties as DPP IV and ACE inhibitors. Additionally, over twenty new metabolites (aromatics, amines, fatty acids, and carboxylic acids) were discovered in the BF system compared to its PF counterpart. Results suggest that using a BF system to ferment C. formosanum sprouts is an appropriate method to scale-up fermentation and enhance nutritional values as well as bioactivities.
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Affiliation(s)
- Chen-Che Hsieh
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC
| | - Shu-Han Yu
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC
| | - Kai-Wen Cheng
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC
| | - Yu-Wei Liou
- Institute of Food Science Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC
| | - Cheng-Chih Hsu
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Rd, South Dist, Taichung 40227, Taiwan, ROC
| | - Chia-Hung Kuo
- Department of Seafood Science, National Kaohsiung University of Science and Technology, No. 142, Haijhuan Rd, Nanzih District, Kaohsiung 81157, Taiwan, ROC
| | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC; Institute of Food Science Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan, ROC; Department of Optometry, Asia University, 500, Lioufeng Rd, Wufeng, Taichung 41354, Taiwan, ROC; Department of Medical Research, China Medical University Hospital, China Medical University, 91, Hsueh-Shih Road, Taichung 40402, Taiwan, ROC.
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12
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Cheng KW, Liu F, Pesko MF, Levy DT, Fong GT, Cummings KM. Impact of vaping restrictions in public places on smoking and vaping in the United States-evidence using a difference-in-differences approach. Addiction 2023; 118:160-166. [PMID: 36043346 PMCID: PMC9722614 DOI: 10.1111/add.16039] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 08/17/2022] [Indexed: 11/28/2022]
Abstract
AIMS To estimate whether and to what extent extending indoor smoking restrictions to include electronic cigarettes (ECs) impact the use of ECs and cigarette smoking among adults in the United States. DESIGN Observational study using a linear probability model and applying a difference-in-differences analysis. SETTING United States. PARTICIPANTS People aged 18-54 who lived in US counties where comprehensive indoor smoking laws in bars, restaurants and private work-places have been in place prior to 2010 (n = 45 111 for EC use analysis, n = 75 959 for cigarette use analysis). MEASUREMENTS Data on cigarette smoking, use of ECs and place of residence from the Tobacco Use Supplement of the Current Population Survey (TUS-CPS 2010-11, 2014-15 and 2018-19) were combined with the American Nonsmokers' Rights Foundation (ANRF) database of state and local indoor smoking and vaping restriction laws. FINDINGS Indoor vaping restriction (IVR) coverage was not significantly associated with the likelihood of adult EC use [coefficient estimate = 0.001; 95% confidence interval (CI) = -0.009, 0.013, P-value = 0.783]. In addition, IVR coverage was not significantly associated with adult cigarette smoking (coefficient estimate = -0.00; 95% CI = -0.016, 0.015, P-value = 0.954). The non-significant results appeared in different socio-demographic subgroups. CONCLUSIONS IVRs do not appear to decrease electronic cigarette use among US adults. There is no evidence that IVRs increase or decrease cigarette smoking among US adults.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Health Administration, Governors State University, University Park, IL, USA
| | - Feng Liu
- School of Humanities and Social Science, The Chinese University of Hong Kong, Shenzhen, China
| | - Michael F Pesko
- Department of Economics, Georgia State University, Atlanta, GA, USA
| | - David T Levy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - Geoffrey T Fong
- Department of Psychology, University of Waterloo, Waterloo, ON, Canada
- School of Public Health and Health Systems, University of Waterloo, Waterloo, ON, Canada
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - K Michael Cummings
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
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13
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Puskar R, Du Truong C, Swain K, Chowdhury S, Chan KY, Li S, Cheng KW, Wang TY, Poh YP, Mazor Y, Liu H, Chou TF, Nannenga BL, Chiu PL. Molecular asymmetry of a photosynthetic supercomplex from green sulfur bacteria. Nat Commun 2022; 13:5824. [PMID: 36192412 PMCID: PMC9529944 DOI: 10.1038/s41467-022-33505-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/20/2022] [Indexed: 11/21/2022] Open
Abstract
The photochemical reaction center (RC) features a dimeric architecture for charge separation across the membrane. In green sulfur bacteria (GSB), the trimeric Fenna-Matthews-Olson (FMO) complex mediates the transfer of light energy from the chlorosome antenna complex to the RC. Here we determine the structure of the photosynthetic supercomplex from the GSB Chlorobaculum tepidum using single-particle cryogenic electron microscopy (cryo-EM) and identify the cytochrome c subunit (PscC), two accessory protein subunits (PscE and PscF), a second FMO trimeric complex, and a linker pigment between FMO and the RC core. The protein subunits that are assembled with the symmetric RC core generate an asymmetric photosynthetic supercomplex. One linker bacteriochlorophyll (BChl) is located in one of the two FMO-PscA interfaces, leading to differential efficiencies of the two energy transfer branches. The two FMO trimeric complexes establish two different binding interfaces with the RC cytoplasmic surface, driven by the associated accessory subunits. This structure of the GSB photosynthetic supercomplex provides mechanistic insight into the light excitation energy transfer routes and a possible evolutionary transition intermediate of the bacterial photosynthetic supercomplex from the primitive homodimeric RC. Cryo-EM reveals an asymmetric bacterial photosynthetic supercomplex built upon a homodimeric reaction center core. The structure provides mechanistic insights into light excitation transfer and a possible evolutionary transition intermediate of photosynthetic machinery.
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Affiliation(s)
- Ryan Puskar
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA.,Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA
| | - Chloe Du Truong
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA.,Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA.,Rampart Bioscience, Monrovia, CA, 91016, USA
| | - Kyle Swain
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287, USA
| | - Saborni Chowdhury
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA.,Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA
| | - Ka-Yi Chan
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA.,Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Ting Yu Wang
- Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Yu-Ping Poh
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA.,Center for Mechanisms of Evolution, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA
| | - Yuval Mazor
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA.,Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA
| | - Haijun Liu
- Department of Biology, Washington University, St. Louis, MO, 63130, USA
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, USA.,Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Brent L Nannenga
- Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA.,School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, 85287, USA
| | - Po-Lin Chiu
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA. .,Center for Applied Structural Discovery, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA.
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14
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Wen YW, Wang IT, Hu YT, Cheng HM, Cheng KW, Shiu MN, Tsai YW. Duration of varenicline prescription and efficacy of smoking cessation treatment: an observational study in Taiwan. Prev Med 2022; 161:107091. [PMID: 35660554 DOI: 10.1016/j.ypmed.2022.107091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 05/10/2022] [Accepted: 05/13/2022] [Indexed: 11/16/2022]
Abstract
Although varenicline has had a significant effect on smoking cessation in randomized clinical trials, the dose-effect of varenicline treatment for smoking cessation in real-world settings remains unclear. This study aimed to evaluate the association between the duration of varenicline prescription and smoking cessation in Taiwan after adjusting for potential confounding effects and endogeneity bias. A total of 5106 Taiwanese participants received varenicline monotherapy for smoking cessation between March 2012 and September 2016. Multinomial logistic regression (MLR) was used to analyze the association between varenicline prescription duration and smoking cessation, stratified by the frequency of smoking clinic visits and propensity scores of early stopping of smoking cessation treatment. Compared to the reference of nonquitting, longer durations of varenicline prescription were associated with the greater likelihood of immediate and complete quitting (OR = 1.08, 95% CI = 1.02-1.14) and late quitting (OR = 1.14, 95% CI = 1.07-1.20). Among those who were more likely to continue visiting smoking clinics, longer use of varenicline was significantly associated with an increase in immediate-and-complete quitting (OR = 1.19, 95% CI = 1.15-1.23) and late quitting (OR = 1.24, 95% CI = 1.20-1.28). Varenicline prescription duration was not associated with smoking cessation among smokers who visited smoking clinics once. The relationship between varenicline prescription duration and smoking cessation was modified by the frequency of smoking clinic visits and was dependent on quitting process patterns. Encouraging smokers to continue visiting the smoking cessation clinic and use medication will help smoking cessation efforts in Taiwan.
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Affiliation(s)
- Yu-Wen Wen
- Clinical Informatics and Medical Statistics Research Center, Chang Gung University, Taoyuan, Taiwan
| | - I-Ting Wang
- Institute of Health and Welfare Policy, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yan-Tzu Hu
- Division of Health Technology Assessment, Center for Drug Evaluation, Taipei, Taiwan
| | - Hao-Min Cheng
- Program of Interdisciplinary Medicine (PIM), National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan; Center for Evidence-based Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Public Health and Community Medicine Research Center, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan; Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kai-Wen Cheng
- Department of Health Administration, Governors State University, IL, USA
| | - Ming-Neng Shiu
- Institute of Health and Welfare Policy, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Wen Tsai
- Institute of Health and Welfare Policy, National Yang Ming Chiao Tung University, Taipei, Taiwan.
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15
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Cheng KW, Meng JQ, Wei L, Hu XX, Lu Y, Zhu XJ. [Comparison of tolerance to decentration and tilt in the early postoperative period between the continuous range and bifocal intraocular lens implantation in myopic eyes]. Zhonghua Yan Ke Za Zhi 2022; 58:513-520. [PMID: 35796124 DOI: 10.3760/cma.j.cn112142-20220403-00154] [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: 06/15/2023]
Abstract
Objective: To compare decentration and tilt tolerances between continuous range intraocular lens (IOL) and bifocal IOL in myopia during the early stages post intraocular implantation. Method: A retrospective cohort study was conducted using follow-up data of 145 patients (145 eyes) who underwent phacoemulsification combined with IOL implantation in the Eye & ENT Hospital of Fudan University from January 2018 to December 2020. According to whether the axial length was less than 24.5 mm, patients were divided into non-myopic and myopic groups. According to IOL type, patients were divided into extend depth of focus (EDOF) ZXR00 IOL group (myopic 38 eyes, non-myopic 41 eyes) and bifocal ZMB00 IOL group (myopic 23 eyes, non-myopic 43 eyes). The distance and near visual acuity (log of the minimum angle of resolution visual acuity), IOL tilt and decentration, intraocular high-order aberration (HOA), coma, trefoil, spherical aberrations, modulation transfer function (MTF), as well as VF-14 index and the incidence of dysphotopsia were compared between the 2 groups at 3 months after surgery. Statistics were performed using Student's t-test, χ2 test, Pearson correlation analysis and multiple linear regression analysis. Results: In either the myopic or non-myopic group, no significant differences were found in age, gender, eye laterality, axial length and IOL degree between eyes with the two different types of IOLs (all P>0.05). At 3 months after surgery, there was no significant difference in uncorrected and best-corrected distance visual acuity between the ZXR00 IOL group and the ZXR00 IOL group, while uncorrected near visual acuity was better in the ZMB00 IOL group than the ZXR00 IOL group (t=10.41, P<0.01). The total postoperative IOL decentration in the ZXR00 IOL group and ZMB00 IOL group in myopic eyes were (0.32±0.17) and (0.38±0.16) mm, respectively, which were greater than those in non-myopic eyes [(0.22±0.12), (0.28±0.12) mm; t=3.16, 2.57; both P<0.05]. However, there were no significant differences in IOL tilt between myopic and non-myopic eyes in the 2 groups (both P>0.05). There were no significant differences in postoperative IOL tilt and decentration between the 2 groups regardless of myopia or non-myopia (all P>0.05). In myopic eyes, HOA, coma aberration and spherical aberration in the ZXR00 IOL group were significantly lower than those in the ZMB00 IOL group, while the total ocular MTF (38.15±10.12) was significantly higher than that in the ZMB00 IOL group (30.46±10.53) (all P<0.05). Pearson correlation analysis and multiple linear regression analysis showed a positive correlation between postoperative HOA and both IOL tilt and decentration in the ZMB00 IOL group (r=0.627, 0.726; β=0.446, 0.587; all P<0.01). However, no such relationship was found in the ZXR00 IOL group (all P>0.05). In myopic eyes, when the IOL tilt aberration and decentration were greater than the median, the HOAs in the ZXR00 IOL group [(0.33±0.14), (0.27±0.11) μm] were lower than those in the ZMB00 IOL group [(0.88±0.56), (0.96±0.45) μm], while the total ocular MTF (42.87±10.97, 40.22±9.30) were higher than those in the ZMB00 IOL group (25.02±8.99, 29.87±10.19) (all P<0.05). In myopic eyes, the proportion of patients with visual interference symptoms in the ZXR00 IOL group [42.11% (16/38)] was significantly lower than that in the ZMB00 IOL group [78.26%(18/23), χ²=7.59, P<0.05]. Conclusion: During the early stages after IOL implantation in myopic eyes, EDOF IOL is more tolerant to decentration and tilt than bifocal IOL.
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Affiliation(s)
- K W Cheng
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - J Q Meng
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - L Wei
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - X X Hu
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - Y Lu
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - X J Zhu
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, NHC Key Laboratory of Myopia (Fudan University), Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
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16
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Zhang G, Wang F, Li S, Cheng KW, Zhu Y, Huo R, Abdukirim E, Kang G, Chou TF. Discovery of small-molecule inhibitors of RUVBL1/2 ATPase. Bioorg Med Chem 2022; 62:116726. [PMID: 35364523 PMCID: PMC9034851 DOI: 10.1016/j.bmc.2022.116726] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/07/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
RUVBL1 and RUVBL2 are highly conserved AAA ATPases (ATPases Associated with various cellular Activities) and highly relevant to the progression of cancer, which makes them attractive targets for novel therapeutic anticancer drugs. In this work, docking-based virtual screening was performed to identify compounds with activity against the RUVBL1/2 complex. Seven compounds showed inhibitory activity against the complex in both enzymatic and cellular assays. A series of pyrazolo[1,5-a]pyrimidine-3-carboxamide analogs were synthesized based on the scaffold of compound 15 with inhibitory activity and good potential for structural manipulation. Analysis of the structure-activity relationship identified the benzyl group on R2 and aromatic ring-substituted piperazinyl on R4 as essential for inhibitory activity against the RUVBL1/2 complex. Of these, compound 18, which has IC50 values of 6.0 ± 0.6 μM and 7.7 ± 0.9 μM against RUVBL1/2 complex and RUVBL1 respectively, showed the most potent inhibition in cell lines A549, H1795, HCT116, and MDA-MB-231 with IC50 values of 15 ± 1.2 μM, 15 ± 1.8 μM, 11 ± 1.0 μM, and 8.9 ± 0.9 μM respectively. A docking study of the compound was performed to predict the binding mode of pyrazolo[1,5-a]pyrimidine-3-carboxamides. Furthermore, mass spectrometry-based proteomic analysis was employed to explore cellular proteins dysregulated by treatment with compounds 16, 18, and 19. Together, the data from these analyses suggest that that compound 18 could serve as a starting point for structural modifications in order to improve potency, selectivity, and pharmacokinetic parameters of potential therapeutic molecules.
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Affiliation(s)
- Gang Zhang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States.
| | - Feng Wang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States
| | - Yingying Zhu
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - Ran Huo
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - Elyar Abdukirim
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
| | - Guifeng Kang
- School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China.
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, United States; Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA 91125, United States.
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17
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Wang F, Li S, Rosencrans WM, Cheng KW, Stott GM, Mroczkowski B, Chou TF. Sulforaphane is Synergistic with CB-5083 and Inhibits Colony Formation of CB-5083-Resistant HCT116 Cells. ChemMedChem 2022; 17:e202200030. [PMID: 35451199 DOI: 10.1002/cmdc.202200030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 04/04/2022] [Indexed: 11/09/2022]
Abstract
Human p97 is a potential drug target in oncology. Mutation-driven drug resistance is an obstacle to the long-term efficacy of targeted therapy. We found that the ATPase activity for one of the CB-5083-resistant p97 mutants was reduced, which also attenuated the degradation of K48 ubiquitinated proteins in cells. To understand how p97 mutant cells with significantly reduced ATPase activity can still grow, we discovered reduced levels of CHOP and NF-κB activation in the p97 mutant cells and these cellular changes can potentially protect HCT116 cells from death due to lowered p97 activity. In addition, the NF-kB inhibitor Sulforaphane reduces proliferation of CB-5083 resistant cells and acts synergistically with CB-5083 to block proliferation of the parental HCT116 cells. The combination of Sulforaphane and CB-5083 may be a useful treatment strategy to combat CB-5083 resistance.
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Affiliation(s)
- Feng Wang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - William M Rosencrans
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Gordon M Stott
- NExT Program Support, Applied/Developmental Research Directorate, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Barbara Mroczkowski
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, Bethesda, MD 20892, USA
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.,Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA
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18
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Wang F, Li S, Cheng KW, Rosencrans WM, Chou TF. The p97 Inhibitor UPCDC-30245 Blocks Endo-Lysosomal Degradation. Pharmaceuticals (Basel) 2022; 15:ph15020204. [PMID: 35215314 PMCID: PMC8880557 DOI: 10.3390/ph15020204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/23/2022] [Accepted: 01/27/2022] [Indexed: 02/04/2023] Open
Abstract
The diverse modes of action of small molecule inhibitors provide versatile tools to investigate basic biology and develop therapeutics. However, it remains a challenging task to evaluate their exact mechanisms of action. We identified two classes of inhibitors for the p97 ATPase: ATP competitive and allosteric. We showed that the allosteric p97 inhibitor, UPCDC-30245, does not affect two well-known cellular functions of p97, endoplasmic-reticulum-associated protein degradation and the unfolded protein response pathway; instead, it strongly increases the lipidated form of microtubule-associated proteins 1A/1B light chain 3B (LC3-II), suggesting an alteration of autophagic pathways. To evaluate the molecular mechanism, we performed proteomic analysis of UPCDC-30245 treated cells. Our results revealed that UPCDC-30245 blocks endo-lysosomal degradation by inhibiting the formation of early endosome and reducing the acidity of the lysosome, an effect not observed with the potent p97 inhibitor CB-5083. This unique effect allows us to demonstrate UPCDC-30245 exhibits antiviral effects against coronavirus by blocking viral entry.
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Affiliation(s)
- Feng Wang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (K.-W.C.); (W.M.R.)
- Correspondence: (F.W.); (T.-F.C.); Tel.: +1 626-395-6772 (T.-F.C.)
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (K.-W.C.); (W.M.R.)
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (K.-W.C.); (W.M.R.)
| | - William M. Rosencrans
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (K.-W.C.); (W.M.R.)
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (K.-W.C.); (W.M.R.)
- Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA
- Correspondence: (F.W.); (T.-F.C.); Tel.: +1 626-395-6772 (T.-F.C.)
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19
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Cheng KW, Tseng CH, Chen IJ, Huang BC, Liu HJ, Ho KW, Lin WW, Chuang CH, Huang MY, Leu YL, Roffler SR, Wang JY, Chen YL, Cheng TL. Inhibition of gut microbial β-glucuronidase effectively prevents carcinogen-induced microbial dysbiosis and intestinal tumorigenesis. Pharmacol Res 2022; 177:106115. [PMID: 35124207 DOI: 10.1016/j.phrs.2022.106115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/13/2022] [Accepted: 02/01/2022] [Indexed: 01/11/2023]
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20
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Beh CC, Zulkufli NS, Loh LM, Cheng KW, Choo LM, Cheah MW, Siow KW, Yon R. SARS-CoV-2 seroprevalence and antibody trends in vaccinated, multi-ethnic healthcare employees. Trop Biomed 2021; 38:552-560. [PMID: 35001921 DOI: 10.47665/tb.38.4.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding of antibody kinetics against SARS-CoV-2 and its vaccines is rapidly evolving. This study aims to (1) determine post-vaccination seroprevalence; (2) compare antibody levels between vaccine types and various clinical/demographic determinants; and (3) determine post-vaccination antibody concentrations against time. This is a retrospective cross-sectional study involving 148 healthcare employees all over Malaysia. IgG Spike (RBD), IgM Spike and IgG Nucleocapsid concentration medians were compared using Mann-Whitney U or Kruskal-Wallis tests. Chi Square and Spearman correlation coefficient tests were performed to identify variables associated with antibody titers. A scatter plot of IgG Spike (RBD) against time from last vaccine dose was also plotted. At 1-month post-vaccination, all employees successfully seroconverted regardless of vaccine type, health status and COVID- 19 history. Comirnaty, convalescent, female or Malay vaccinees had significantly higher IgG Spike (RBD) titers compared to their respective counterparts. No correlation was found between age and IgG Spike (RBD) levels. Concentration of all three antibodies waned with time post-vaccination, with IgM Spike and IgG Nucleocapsid waning faster than IgG Spike (RBD).
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Affiliation(s)
- C C Beh
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - N S Zulkufli
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - L M Loh
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - K W Cheng
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - L M Choo
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - M W Cheah
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - K W Siow
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
| | - R Yon
- BP Clinical Lab Sdn Bhd, Temasya@Glenmarie, Lot 2, Jalan Pendaftar U1/54, Section U1, 40150 Shah Alam, Selangor, Malaysia
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21
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Cheng KW, Li S, Wang F, Ruiz-Lopez NM, Houerbi N, Chou TF. Impacts of p97 on Proteome Changes in Human Cells during Coronaviral Replication. Cells 2021; 10:cells10112953. [PMID: 34831176 PMCID: PMC8616207 DOI: 10.3390/cells10112953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 12/27/2022] Open
Abstract
Human coronavirus (HCoV) similar to other viruses rely on host cell machinery for both replication and to spread. The p97/VCP ATPase is associated with diverse pathways that may favor HCoV replication. In this study, we assessed the role of p97 and associated host responses in human lung cell line H1299 after HCoV-229E or HCoV-OC43 infection. Inhibition of p97 function by small molecule inhibitors shows antiviral activity, particularly at early stages of the virus life cycle, during virus uncoating and viral RNA replication. Importantly, p97 activity inhibition protects human cells against HCoV-induced cytopathic effects. The p97 knockdown also inhibits viral production in infected cells. Unbiased quantitative proteomics analyses reveal that HCoV-OC43 infection resulted in proteome changes enriched in cellular senescence and DNA repair during virus replication. Further analysis of protein changes between infected cells with control and p97 shRNA identifies cell cycle pathways for both HCoV-229E and HCoV-OC43 infection. Together, our data indicate a role for the essential host protein p97 in supporting HCoV replication, suggesting that p97 is a therapeutic target to treat HCoV infection.
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Affiliation(s)
- Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (F.W.); (N.M.R.-L.); (N.H.)
- Correspondence: (K.-W.C.); (T.-F.C.); Tel.: +1-626-395-6772 (T.-F.C.)
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (F.W.); (N.M.R.-L.); (N.H.)
| | - Feng Wang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (F.W.); (N.M.R.-L.); (N.H.)
| | - Nallely M. Ruiz-Lopez
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (F.W.); (N.M.R.-L.); (N.H.)
| | - Nadia Houerbi
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (F.W.); (N.M.R.-L.); (N.H.)
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA; (S.L.); (F.W.); (N.M.R.-L.); (N.H.)
- Proteome Exploration Laboratory, Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA
- Correspondence: (K.-W.C.); (T.-F.C.); Tel.: +1-626-395-6772 (T.-F.C.)
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22
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Wang Y, Liu YY, Chen MB, Cheng KW, Qi LN, Zhang ZQ, Peng Y, Li KR, Liu F, Chen G, Cao C. Neuronal-driven glioma growth requires Gαi1 and Gαi3. Theranostics 2021; 11:8535-8549. [PMID: 34373757 PMCID: PMC8343996 DOI: 10.7150/thno.61452] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 07/08/2021] [Indexed: 12/17/2022] Open
Abstract
Neuroligin-3 (NLGN3) is necessary and sufficient to promote glioma cell growth. The recruitment of Gαi1/3 to the ligand-activated receptor tyrosine kinases (RTKs) is essential for mediating oncogenic signaling. Methods: Various genetic strategies were utilized to examine the requirement of Gαi1/3 in NLGN3-driven glioma cell growth. Results: NLGN3-induced Akt-mTORC1 and Erk activation was inhibited by decreasing Gαi1/3 expression. In contrast ectopic Gαi1/3 overexpression enhanced NLGN3-induced signaling. In glioma cells, NLGN3-induced cell growth, proliferation and migration were attenuated by Gαi1/3 depletion with shRNA, but facilitated with Gαi1/3 overexpression. Significantly, Gαi1/3 silencing inhibited orthotopic growth of patient-derived glioma xenografts in mouse brain, whereas forced Gαi1/3-overexpression in primary glioma xenografts significantly enhanced growth. The growth of brain-metastatic human lung cancer cells in mouse brain was largely inhibited with Gαi1/3 silencing. It was however expedited with ectopic Gαi1/3 overexpression. In human glioma Gαi3 upregulation was detected, correlating with poor prognosis. Conclusion: Gαi1/3 mediation of NLGN3-induced signaling is essential for neuronal-driven glioma growth.
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Zhang G, Li S, Cheng KW, Chou TF. AAA ATPases as therapeutic targets: Structure, functions, and small-molecule inhibitors. Eur J Med Chem 2021; 219:113446. [PMID: 33873056 PMCID: PMC8165034 DOI: 10.1016/j.ejmech.2021.113446] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 10/06/2020] [Revised: 03/21/2021] [Accepted: 03/30/2021] [Indexed: 01/07/2023]
Abstract
ATPases Associated with Diverse Cellular Activity (AAA ATPase) are essential enzymes found in all organisms. They are involved in various processes such as DNA replication, protein degradation, membrane fusion, microtubule serving, peroxisome biogenesis, signal transduction, and the regulation of gene expression. Due to the importance of AAA ATPases, several researchers identified and developed small-molecule inhibitors against these enzymes. We discuss six AAA ATPases that are potential drug targets and have well-developed inhibitors. We compare available structures that suggest significant differences of the ATP binding pockets among the AAA ATPases with or without ligand. The distances from ADP to the His20 in the His-Ser-His motif and the Arg finger (Arg353 or Arg378) in both RUVBL1/2 complex structures bound with or without ADP have significant differences, suggesting dramatically different interactions of the binding site with ADP. Taken together, the inhibitors of six well-studied AAA ATPases and their structural information suggest further development of specific AAA ATPase inhibitors due to difference in their structures. Future chemical biology coupled with proteomic approaches could be employed to develop variant specific, complex specific, and pathway specific inhibitors or activators for AAA ATPase proteins.
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Affiliation(s)
- Gang Zhang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, United States.
| | - Shan Li
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, United States
| | - Kai-Wen Cheng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, United States
| | - Tsui-Fen Chou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, 91125, United States.
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Lv Y, Wang Y, Song Y, Wang SS, Cheng KW, Zhang ZQ, Yao J, Zhou LN, Ling ZY, Cao C. LncRNA PINK1-AS promotes Gαi1-driven gastric cancer tumorigenesis by sponging microRNA-200a. Oncogene 2021; 40:3826-3844. [PMID: 33958720 DOI: 10.1038/s41388-021-01812-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/07/2021] [Accepted: 04/21/2021] [Indexed: 02/03/2023]
Abstract
Gastric cancer (GC) is one of the leading causes of human mortality around the world. We have previously shown that Gαi1 (the inhibitory subunit 1 of the heterotrimeric guanine nucleotide-binding protein) recruitment to ligand-activated receptor tyrosine kinases (RTKs) is essential for signaling. Testing its role in GC cancer-promoting functions, we found that Gαi1 is upregulated in human GC, correlating with poor overall survival. In established and primary human GC cells, Gαi1 shRNA (small hairpin RNA) or knockout produced significant anti-GC cell activity, proliferation and migration was inhibited, and apoptosis was activated. Conversely, ectopic Gαi1 overexpression promoted proliferation and migration of GC cells in vitro. By examining the tumor-suppressive miRNA microRNA-200a (miR-200a), we found that miR-200a directly silenced Gαi1 to induce anti-GC cell activity. The expression of miR-200a was downregulated in human GC, correlating with upregulation of a novel miR-200a-targeting long non-coding RNA (LncRNA), PINK1 (PTEN Induced Kinase 1)-AS. RNA immunoprecipitation, RNA-pull down, and RNA fluorescence in situ hybridization assays confirmed that PINK1-AS directly binds to miR-200a. Silencing PINK1-AS in GC cells led to miR-200a accumulation, Gαi1 downregulation, and inhibition of GC cell progression in vitro, whereas PINK1-AS upregulation produced the converse results. Significantly, anti-GC cell activity induced by PINK1-AS shRNA was ameliorated by the expression of miR-200a antisense or the 3'-UTR (untranslated region)-depleted Gαi1. In vivo, the growth of subcutaneous MGC-803 xenografts in nude mice was inhibited by PINK1-AS shRNA, but accelerated by PINK1-AS overexpression. Patient-derived GC xenograft growth in nude mice was largely inhibited after intratumoral injection of PINK1-AS shRNA lentivirus. In conclusion, PINK1-AS promotes Gαi1-driven GC progression by sponging miR-200a.
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Affiliation(s)
- Yan Lv
- Center of Translational Medicine, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Yin Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Yu Song
- Department of Oncology, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Shu-Sheng Wang
- Department of General Surgery, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China
| | - Kai-Wen Cheng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Zhi-Qing Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China
| | - Jin Yao
- The Affiliated Eye Hospital, Nanjing Medical University, Nanjing, China.
| | - Li-Na Zhou
- Department of Radiotherapy and Oncology, Affiliated Kunshan Hospital of Jiangsu University, Kunshan, China.
| | - Zhuo-Yan Ling
- Department of Orthopedics, the Second Affiliated Hospital of Soochow University, Suzhou, China.
| | - Cong Cao
- Center of Translational Medicine, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, China. .,Jiangsu Key Laboratory of Neuropsychiatric Diseases and Institute of Neuroscience, Soochow University, Suzhou, China. .,North District, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, China.
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25
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Chen CC, Cheng KW, Chang HY, Chang SS. Changes in alcoholic beverage preference and consumption in Taiwan following accession to the World Trade Organization. Addiction 2021; 116:497-505. [PMID: 32621300 DOI: 10.1111/add.15184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/08/2019] [Accepted: 06/28/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Given the growing concerns that international trade agreements may increase the supply of health-harming commodities, including alcohol, this study aimed to investigate the changes in alcoholic beverage preference and consumption after Taiwan's accession to the World Trade Organization (WTO). DESIGN A before-and-after comparison analysis using data from two waves (1993-1996 and 2005-2008) of the Nutrition and Health Survey in Taiwan (NAHSIT), before and after Taiwan's accession to the WTO in 2002. SETTING Taiwan. PARTICIPANTS A total of 5031 and 2910 participants aged 19 years or older in NAHSIT 1993-1996 and 2005-2008, respectively. MEASUREMENTS Alcohol measures included beverage-specific preference, mean daily ethanol consumption, and heavy drinking. Logistic regression was used to estimate the prevalence rate ratios and rate differences of beverage preferences between the two waves and the risk ratios of heavy drinking associated with different beverage preferences. FINDINGS A reduced prevalence rate of drinkers who preferred rice spirits (prevalence rate ratio [PRR] = 0.47; 95% confidence interval [CI] = 0.24, 0.91) and Asian wine (PRR = 0.11; 95% CI = 0.04, 0.29) was found in contrast to an increase in the preference for fruit wine (PRR = 2.90; 95% CI = 1.75, 4.79); the preference for Asian spirits showed a non-significant increase (PRR = 1.63; 95% CI = 0.88, 3.02). Similarly, the mean daily ethanol consumption decreased for Asian wine and increased for Asian spirits. Compared with beer, an increased risk of heavy drinking was associated with rice spirits (adjusted risk ratio [aRR] = 3.30; 95% CI = 1.68, 6.47) and Asian spirits (aRR = 2.64; 95% CI = 1.38, 5.01). CONCLUSIONS After Taiwan became a member of the World Trade Organization and abolished its alcohol monopoly in 2002, the pattern of alcoholic beverage preference changed markedly, including a decrease in drinkers who preferred rice spirits and Asian wine (53% and 89% decrease, respectively) and an increase in drinkers who preferred fruit wine and Asian spirits (2.9-fold and 1.6-fold increase, respectively).
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Affiliation(s)
- Cheng-Che Chen
- Division of Psychiatry and Center of Medical Education and Research, National Taiwan University Hospital Chu-Tung Branch, Hsinchu, Taiwan
| | - Kai-Wen Cheng
- Department of Health Administration, Governors State University, University Park, IL, USA.,Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - Hsin-Yi Chang
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Shu-Sen Chang
- Institute of Health Behaviors and Community Sciences and Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan.,Psychiatric Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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26
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Chen IJ, Cheng YA, Ho KW, Lin WW, Cheng KW, Lu YC, Hsieh YC, Huang CC, Chuang CH, Chen FM, Su YC, Roffler SR, Cheng TL. Bispecific antibody (HER2 × mPEG) enhances anti-cancer effects by precise targeting and accumulation of mPEGylated liposomes. Acta Biomater 2020; 111:386-397. [PMID: 32417267 DOI: 10.1016/j.actbio.2020.04.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/17/2022]
Abstract
Targeted antibodies and methoxy-PEGylated nanocarriers have gradually become a mainstream of cancer therapy. To increase the anti-cancer effects of targeted antibodies combined with mPEGylated liposomes (mPEG-liposomes), we describe a bispecific antibody in which an anti-methoxy-polyethylene glycol scFv (αmPEG scFv) was fused to the C-terminus of an anti-HER2 (αHER2) antibody to generate a HER2 × mPEG BsAb that retained the original efficacy of a targeted antibody while actively attracting mPEG-liposomes to accumulate at tumor sites. HER2 ×mPEG BsAb can simultaneously bind to HER2-high expressing MCF7/HER2 tumor cells and mPEG molecules on mPEG-liposomal doxorubicin (Lipo-Dox). Pre-incubation of HER2 × mPEG BsAb with cells increased the endocytosis of Lipo-DiD and enhanced the cytotoxicity of Lipo-Dox to MCF7/HER2 tumor cells. Furthermore, pre-treatment of HER2 × mPEG BsAb enhanced the tumor accumulation and retention of Lipo-DiR 2.2-fold in HER2-high expressing MCF7/HER2 tumors as compared to HER2-low expressing MCF7/neo1 tumors. Importantly, HER2 × mPEG BsAb plus Lipo-Dox significantly suppressed tumor growth as compared to control BsAb plus Lipo-Dox in MCF7/HER2 tumor-bearing mice. These results indicate that HER2 × mPEG BsAb can enhance tumor accumulation of mPEG-liposomes to improve the therapeutic efficacy of combination treatment. Anti-mPEG scFv can be fused to any kind of targeted antibody to generate BsAbs to actively attract mPEG-drugs and improve anti-cancer efficacy. STATEMENT OF SIGNIFICANCE: Antibody targeted therapy and PEGylated drugs have gradually become the mainstream of cancer therapy. To enhance the anti-cancer effects of targeted antibodies combined with PEGylated drugs is very important. To this aim, we fused an anti-PEG scFv to the C-terminal of HER2 targeted antibodies to generate a HER2×mPEG bispecific antibody (BsAb) to retain the original efficacy of targeted antibody whilst actively attract mPEG-liposomal drugs to accumulate at tumor sites. The present study demonstrates pre-treatment of HER2×mPEG BsAb can enhance tumor accumulation of mPEG-liposomal drugs to improve the therapeutic efficacy of combination treatment. Anti-mPEG scFv can be fused to any kind of targeted antibody to generate BsAbs to actively attract mPEG-drugs and improve anti-cancer efficacy.
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Lu N, Cheng KW, Qamar N, Huang KC, Johnson JA. Weathering COVID-19 storm: Successful control measures of five Asian countries. Am J Infect Control 2020; 48:851-852. [PMID: 32360746 PMCID: PMC7189844 DOI: 10.1016/j.ajic.2020.04.021] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 11/16/2022]
Abstract
COVID-19 control measures taken by 5 Asian countries first hit by coronavirus. China took extremely aggressive measures of lockdowns and closing business. Singapore took proactive measures of border controls and extensive contact tracing. Taiwan-seized border control and strict home quarantine with the use of big data. South Korea executed widespread testing and contact tracing. Japan promoted measures of social distancing.
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Affiliation(s)
- Ning Lu
- College of Health and Human Services, Governors State University, University Park, IL, USA.
| | - Kai-Wen Cheng
- College of Health and Human Services, Governors State University, University Park, IL, USA
| | - Nafees Qamar
- College of Health and Human Services, Governors State University, University Park, IL, USA
| | - Kuo-Cherh Huang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
| | - James A Johnson
- School of Health Sciences, Central Michigan University, Mount Pleasant, MI, USA
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Cheng KW, Hsieh CM, Chen HW, Chi PC, Yang DP, Chan SH, Chen JY, Hwa HL, Fang CC, Weng TI, Chen PS. Determination of synthetic cathinone α-pyrrolidinovalero-phenone and its metabolite in urine using solid-phase extraction and gas chromatography-mass spectrometry. Rapid Commun Mass Spectrom 2020; 34 Suppl 1:e8579. [PMID: 31502287 DOI: 10.1002/rcm.8579] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 08/15/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE The presence of α-pyrrolidinovalerophenone (α-PVP) and its metabolites in urine is evidence of the administration of α-PVP. A toxicological challenge is that the metabolites of α-PVP exhibit amphoteric properties, which make them unsuitable for detection using gas chromatography-mass spectrometry (GC/MS). In the study reported, proper derivatization and sample extraction were essential for improving the sensitivity for GC/MS analysis. METHODS An automated solid-phase extraction (SPE) method has been developed and optimized. The derivatization efficiency was tested using longer reaction time and the addition of polar pyridine into a mixture of N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA) with 1% trimethylchlorosilane. Method validation, including linearity, limit of detection, precision, accuracy, and recovery, was evaluated using automatic SPE and GC/MS. RESULTS The results suggested that adding pyridine to BSTFA (1:1, v/v) significantly improved derivatization efficiency and precision. After optimization, the linear range was from 25 to 1000 ng mL-1 with R2 > 0.9950. The limit of detection was 5 ng mL-1 for α-PVP and 25 ng mL-1 for OH-α-PVP. The recovery for SPE was over 88%. The inter-day and intra-day precisions were less than 15%. A forensic sample has been found containing α-PVP (67.3 ng mL-1 ) and OH-α-PVP (560.2 ng mL-1 ). CONCLUSIONS This study is the first to validate an auto-SPE-GC/MS method for the quantification and qualification of α-PVP and OH-α-PVP in urine. We have successfully improved the derivatization efficiency and developed a sensitive and semi-automatic approach. This approach is desirable for the detection of synthetic cathinone at trace levels in biological samples.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Cosmetic Science, Providence University, Taichung, 433, Taiwan
| | - Chien-Ming Hsieh
- School of Pharmacy, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 110, Taiwan
| | - Huei-Wen Chen
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, 1 Jen Ai Road Section 1, Taipei, 100, Taiwan
| | - Pin-Chieh Chi
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, 1 Jen Ai Road Section 1, Taipei, 100, Taiwan
| | - Da-Peng Yang
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, 7 Chung-Shan S. Road., Taipei, 100, Taiwan
| | - She-Hung Chan
- Department of Cosmetic Science, Providence University, Taichung, 433, Taiwan
| | - Ju-Yu Chen
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, 7 Chung-Shan S. Road., Taipei, 100, Taiwan
| | - Hsaio-Lin Hwa
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, 7 Chung-Shan S. Road., Taipei, 100, Taiwan
| | - Cheng-Chung Fang
- Department of Emergency Medicine, College of Medicine, National Taiwan University, Taipei, 100, Taiwan
| | - Te-I Weng
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, 7 Chung-Shan S. Road., Taipei, 100, Taiwan
| | - Pai-Shan Chen
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, 1 Jen Ai Road Section 1, Taipei, 100, Taiwan
- Department and Graduate Institute of Forensic Medicine, College of Medicine, National Taiwan University, 7 Chung-Shan S. Road., Taipei, 100, Taiwan
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Cheng KW, Shang C, Lee HM, Chaloupka FJ, Fong GT, Borland R, Heckman BW, Hitchman SC, O'Connor RJ, Levy DT, Cummings KM. Costs of vaping: evidence from ITC Four Country Smoking and Vaping Survey. Tob Control 2020; 30:94-97. [PMID: 32086385 PMCID: PMC7507861 DOI: 10.1136/tobaccocontrol-2019-055344] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/12/2019] [Accepted: 11/19/2019] [Indexed: 01/21/2023]
Abstract
Study objectives To compare the prices paid for nicotine vaping products (NVPs) and supplies among current NVP users to prices paid for cigarettes among current smokers. Data The 2016 International Tobacco Control Four Country Vaping and Smoking Survey (4CV1). Key measures included: (1) self-reported prices paid for reusable NVPs (eg, rechargeable devices with cartridges and tank system devices with e-liquids) in the 3-month period prior to the survey among current NVP users, (2) prices paid for disposable NVPs, cartridges and e-liquids purchased in the last 30 days among current NVP users and (3) self-reported prices paid for cigarettes among current smokers. Results Disposable NVP price was higher than the price of a comparable unit for combustible cigarettes in England (EN), USA and Canada (CA). Prefilled cartridge price was higher than the price of a comparable unit of cigarettes in USA and CA, but lower in EN and Australia. E-liquid price was consistently lower than the price of a comparable unit of cigarettes across four countries. For start-up costs, price of a rechargeable device is approximately 3–5 times higher than a pack of cigarettes in four countries. Conclusion NVP prices were generally higher than prices of combustible cigarettes, especially the high upfront NVP devices. The high upfront costs of purchasing a reusable NVP may discourage some smokers from switching to vaping. However, the average lower costs of cartridges and e-liquids relative to a package of cigarettes make switching to a NVP an attractive alternative to smoking in the long term so long as smokers switch completely to vaping.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Health Administration, Governors State University, University Park, Illinois, USA .,Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Ce Shang
- Department of Pediatrics and Oklahoma Tobacco Research Center, University of Oklahoma Stephenson Cancer Center, Oklahoma City, Oklahoma, USA
| | - Hye Myung Lee
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Frank J Chaloupka
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Geoffrey T Fong
- Department of Psychology and School of Public Health and Health Systems, University of Waterloo, Waterloo, Ontario, Canada.,Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Ron Borland
- School of Psychological Sciences, University of Melbourne, Melbourne, Victoria, Australia.,Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Bryan W Heckman
- Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.,Hollings Cancer Center, Medical University of South Carolina, Charleston, South Carolina, US
| | - Sara C Hitchman
- Department of Addictions, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Richard J O'Connor
- Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - David T Levy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, District of Columbia, USA
| | - K Michael Cummings
- Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.,Hollings Cancer Center, Medical University of South Carolina, Charleston, South Carolina, US
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Shang C, Weaver SR, White JS, Huang J, Nonnemaker J, Cheng KW, Chaloupka FJ. E-cigarette Product Preferences among Adult Smokers: A Discrete Choice Experiment. TOB REGUL SCI 2020; 6:66-80. [PMID: 32190716 PMCID: PMC7079730 DOI: 10.18001/trs.6.1.7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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] [Indexed: 12/27/2022]
Abstract
OBJECTIVES In this study, we used a discrete choice experiment (DCE) conducted August-October 2017 to examine electronic nicotine delivery systems (ENDS) product preferences in a national sample of adult smokers (N = 1154) who were also using ENDS or had not ruled out future use. METHODS The DCE evaluated 5 ENDS attributes: relative harm; effectiveness for helping smokers quit; nicotine strength; flavor; and price. We asked participants to choose among their own cigarettes, 2 ENDS products whose attributes varied across tasks, or none. We analyzed ENDS preferences using multinomial, nested, and mixed logit regressions. RESULTS Smokers preferred ENDS that are less harmful than cigarettes, are effective in helping smokers quit, are lower priced, and are not menthol-flavored. The marginal willingness to pay for an ENDS product was $8.40 when less harmful than cigarettes, $4.13 when of unknown effectiveness in helping quitting ($13.90 when effective), and $3.37 when ENDS are not menthol-flavored. Furthermore, the overall flavor preference is driven by tobacco smokers, not by menthol cigarette smokers who do prefer menthol-flavored ENDS. CONCLUSIONS Policies that affect perceptions of ENDS effectiveness in promoting cessation and their relative harm may alter smokers' ENDS preferences. Regulating flavors and price also may influence adult smokers' ENDS preference.
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Affiliation(s)
- Ce Shang
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
| | - Scott R Weaver
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
| | - Justin S White
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
| | - Jidong Huang
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
| | - James Nonnemaker
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
| | - Kai-Wen Cheng
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
| | - Frank J Chaloupka
- Ce Shang, Assistant Professor, Department of Pediatrics, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Scott R. Weaver, Research Associate Professor, Department of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, GA. Justin S. White, Assistant Professor, Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, San Francisco, CA. Jidong Huang, Associate Professor, Department of Health Policy and Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA. James Nonnemaker, Senior Research Scientist, RTI International Research Triangle Park, Durham, NC. Kai-Wen Cheng, Assistant Professor, Department of Health Administration, Governors State University, University Park, IL. Frank J. Chaloupka, Professor, Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL
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Cheng KW, Chaloupka FJ, Shang C, Ngo A, Fong GT, Borland R, Heckman BW, Levy DT, Cummings KM. Prices, use restrictions and electronic cigarette use-evidence from wave 1 (2016) US data of the ITC Four Country Smoking and Vaping Survey. Addiction 2019; 114 Suppl 1:115-122. [PMID: 30690802 PMCID: PMC6661221 DOI: 10.1111/add.14562] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS To determine if there are associations between changes in the explicit (i.e. price) and implicit (i.e. use restrictions in public places) costs of cigarettes and nicotine vaping products (NVPs) and their use patterns in the United States. METHODS Data came from wave 1 (2016) US data of the ITC Four Country Smoking and Vaping Survey (ITC US 4CV1) and Nielsen Scanner Track database. A multiple logistic regression model was applied to estimate the likelihoods of NVP use (vaping at least monthly), cigarette/NVP concurrent use (vaping and smoking at least monthly) and switch from cigarettes to NVPs (had quit smoking < 24 months and currently vape) among ever smokers, conditioning upon cigarette/NVP prices, use restrictions and socio-demographics. RESULTS Living in places where vaping is allowed in smoke-free areas was significantly associated with an increase in the likelihood of vaping [marginal effect (ME) = 0.17; P < 0.05] and the concurrent use of cigarettes and NVPs (ME = 0.11; P < 0.05). Higher NVP prices were associated with decreased likelihood of NVP use, concurrent use, and complete switch (P > 0.05). Higher cigarette prices were associated with greater likelihood of cigarette and NVP concurrent use (P > 0.05). Working in places where vaping is banned is associated with lower likelihood of vaping and NVP and cigarette concurrent use (P > 0.05). CONCLUSIONS Higher prices for nicotine vaping products (NVPs) and vaping restrictions in public places are associated with less NVP use and less concurrent use of vaping and smoking. Public policies that increase prices for vaping devices and supplies (i.e. regulations, taxes) and restrict where vaping is allowed are likely to suppress vaping.
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Affiliation(s)
- Kai-Wen Cheng
- Department of Health Administration, Governors State University, University Park, IL, USA,Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - Frank J. Chaloupka
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - Ce Shang
- Oklahoma Tobacco Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Anh Ngo
- Oklahoma Tobacco Research Center, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Geoffrey T. Fong
- Department of Psychology, University of Waterloo, Waterloo, Ontario, Canada,Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Ron Borland
- Nigel Gray Fellowship Group, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Bryan W. Heckman
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - David T. Levy
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, DC, USA
| | - K. Michael Cummings
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
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Heckman BW, Fong GT, Borland R, Hitchman S, O’Connor RJ, Bickel WK, Stein JS, Yong HH, Nahhas GJ, Pope DA, Shang C, Cheng KW, Levy DT, Cummings KM. The impact of vaping and regulatory environment on cigarette demand: behavioral economic perspective across four countries. Addiction 2019; 114 Suppl 1:123-133. [PMID: 30575186 PMCID: PMC7029808 DOI: 10.1111/add.14538] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/20/2018] [Accepted: 12/20/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIMS Government regulations of nicotine vaping products (NVP) have evolved rapidly during the past decade. The impact of NVP regulatory environment and vaping on cigarette demand is unknown. The current study aims to investigate whether or not respondents' reported cigarette demand, as measured by a hypothetical cigarette purchase task, varies with (1) smoking status, (2) vaping status or (3) NVP regulatory environment (country used as proxy). DESIGN Cross-sectional survey data from wave 1 of the International Tobacco Control (ITC) Four Country Smoking and Vaping (4CV) Survey (2016). SETTING Australia, Canada, England and the United States. PARTICIPANTS A total of 10 316 adult smokers. MEASUREMENTS A hypothetical purchase task asked smokers to estimate how many cigarettes they would purchase for consumption in a single day across multiple cigarette prices. Responses were used to derive measures of cigarette demand. Overall sensitivity of cigarette consumption to price increases was quantified to index cigarette demand elasticity, whereas estimated consumption when cigarettes are free was used to index cigarette demand intensity. FINDINGS A majority of the non-daily smokers had previously smoked daily (72.3%); daily vapers were more likely to be former daily smokers (89.9%) compared to non-daily vapers (70.1%) and non-vapers (69.2%) (P < 0.001). The smoking status × vaping status interaction was significant for cigarette demand intensity (F = 4.93; P = 0.007) and elasticity (F = 7.30; P = 0.001): among non-daily smokers, vapers reported greater intensity but lower elasticity (i.e. greater demand) relative to non-vapers (Ps < 0.05). Among daily smokers, daily vapers reported greater intensity relative to non-vapers (P = 0.005), but vaping status did not impact elasticity (Ps > 0.38). Intensity was higher in Australia compared with all other countries (Ps < 0.001), but elasticity did not vary by country (F = 2.15; P = 0.09). CONCLUSIONS In a hypothetical purchase task, non-daily smokers showed lower price elasticity if they used e-cigarettes than if they did not, while there was no clear difference in elasticity between e-cigarette users and non-users among daily smokers or according to regulatory environment of their country with regard to e-cigarettes.
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Affiliation(s)
- Bryan W. Heckman
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Geoffrey T. Fong
- Department of Psychology, University of Waterloo, Waterloo, Ontario, Canada,Ontario Institute for Cancer Research, Toronto, Ontario, Canada,School of Public Health and Health Systems, University of Waterloo, Waterloo, Ontario, Canada
| | - Ron Borland
- Nigel Gray Fellowship Group, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Sara Hitchman
- UK Centre for Tobacco and Alcohol Studies, King’s College London, Strand, London, United Kingdom
| | - Richard J. O’Connor
- Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Warren K. Bickel
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, USA
| | - Jeffrey S. Stein
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, USA
| | - Hua-Hie Yong
- Nigel Gray Fellowship Group, Cancer Council Victoria, Melbourne, Victoria, Australia,School of Psychology, Deakin University, Geelong, Victoria, Australia
| | - Georges J. Nahhas
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Derek A. Pope
- Addiction Recovery Research Center, Virginia Tech Carilion Research Institute, Roanoke, VA, USA
| | - Ce Shang
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - Kai-Wen Cheng
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - David T. Levy
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, USA
| | - K. Michael Cummings
- Department of Psychiatry & Behavioral Sciences, Medical University of South Carolina, Charleston, SC, USA
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Driezen P, Nargis N, Thompson ME, Cummings KM, Fong GT, Chaloupka FJ, Shang C, Cheng KW. State-Level Affordability of Factory-Made Cigarettes among Current US Smokers: Findings from the ITC US Survey, 2003-2015. Int J Environ Res Public Health 2019; 16:E2439. [PMID: 31323981 PMCID: PMC6650842 DOI: 10.3390/ijerph16132439] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/24/2019] [Accepted: 06/29/2019] [Indexed: 11/16/2022]
Abstract
Cigarette affordability measures the price smokers pay for cigarettes in relation to their incomes. Affordability can be measured using the relative income price of cigarettes (RIP), or the price smokers pay to purchase 100 packs of 20 cigarettes divided by their per capita household income. Using longitudinal data from 7046 smokers participating in the International Tobacco Control (ITC) US Survey, the purpose of this study was to test whether affordability significantly changed following the US federal tax increase implemented on 1 April 2009. This study also estimated temporal trends in affordability from 2003-2015 at state and national levels using small area estimation methods and segmented linear mixed effects regression models. RIP increased slightly during 2003-2008. This was followed by a 30% increase during 2008-2010, indicating cigarettes were less affordable after the federal tax increase. RIP continued to increase during 2010-2013 but decreased during 2013-2015, suggesting cigarettes have recently become more affordable for US smokers. State-level trends in RIP were consistent with overall national trends. Controlling for other factors, a $1 increase in the state excise tax was significantly associated with a 9% increase in RIP, indicating state taxes reduced affordability. Tax-induced price increases must keep pace with underlying economic conditions to ensure cigarettes do not become more affordable over time.
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Affiliation(s)
- Pete Driezen
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
- School of Public Health and Health Systems, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
| | - Nigar Nargis
- Economic and Health Policy Research, American Cancer Society, Washington, DC 20004, USA
| | - Mary E Thompson
- Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - K Michael Cummings
- Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Geoffrey T Fong
- Department of Psychology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- School of Public Health and Health Systems, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Ontario Institute for Cancer Research, Toronto, ON M5G 0A3, Canada
| | - Frank J Chaloupka
- Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL 60612-4394, USA
- National Bureau of Economic Research, Cambridge, MA 02138, USA
| | - Ce Shang
- Oklahoma Tobacco Research Center, Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Kai-Wen Cheng
- Department of Health Administration, Governors State University, University Park, IL 60484-0975, USA
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60612-4394, USA
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Lu YC, Chuang CH, Chuang KH, Chen IJ, Huang BC, Lee WH, Wang HE, Li JJ, Cheng YA, Cheng KW, Wang JY, Hsieh YC, Lin WW, Cheng TL. Specific activation of pro-Infliximab enhances selectivity and safety of rheumatoid arthritis therapy. PLoS Biol 2019; 17:e3000286. [PMID: 31194726 PMCID: PMC6563948 DOI: 10.1371/journal.pbio.3000286] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 05/10/2019] [Indexed: 12/15/2022] Open
Abstract
During rheumatoid arthritis (RA) treatment, long-term injection of antitumor necrosis factor α antibodies (anti-TNFα Abs) may induce on-target toxicities, including severe infections (tuberculosis [TB] or septic arthritis) and malignancy. Here, we used an immunoglobulin G1 (IgG1) hinge as an Ab lock to cover the TNFα-binding site of Infliximab by linking it with matrix metalloproteinase (MMP) -2/9 substrate to generate pro-Infliximab that can be specifically activated in the RA region to enhance the selectivity and safety of treatment. The Ab lock significantly inhibits the TNFα binding and reduces the anti-idiotypic (anti-Id) Ab binding to pro-Infliximab by 395-fold, 108-fold compared with Infliximab, respectively, and MMP-2/9 can completely restore the TNFα neutralizing ability of pro-Infliximab to block TNFα downstream signaling. Pro-Infliximab was only selectively activated in the disease site (mouse paws) and presented similar pharmacokinetics (PKs) and bio-distribution to Infliximab. Furthermore, pro-Infliximab not only provided equivalent therapeutic efficacy to Infliximab but also maintained mouse immunity against Listeria infection in the RA mouse model, leading to a significantly higher survival rate (71%) than that of the Infliximab treatment group (0%). The high-selectivity pro-Infliximab maintains host immunity and keeps the original therapeutic efficiency, providing a novel strategy for RA therapy. During treatment of rheumatoid arthritis, systemic administration of anti-TNFα antibodies may induce on-target toxicities, limiting their application. The incorporation of IgG1 hinge as an antibody lock generates a pro-Infliximab whose activation is specific to the disease region, enabling safer RA therapy.
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Affiliation(s)
- Yun-Chi Lu
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Hung Chuang
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuo-Hsiang Chuang
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
| | - I-Ju Chen
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Bo-Cheng Huang
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Wen-Han Lee
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsin-Ell Wang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
- Biophotonics and Molecular Imaging Research Center, National Yang-Ming University, Taipei, Taiwan
| | - Jia-Je Li
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Yi-An Cheng
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kai-Wen Cheng
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jaw-Yuan Wang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Division of Gastroenterology and General Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuan-Chin Hsieh
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Wei Lin
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Laboratory Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail: (WWL); (TLC)
| | - Tian-Lu Cheng
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- * E-mail: (WWL); (TLC)
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Cheng YA, Chen IJ, Su YC, Cheng KW, Lu YC, Lin WW, Hsieh YC, Kao CH, Chen FM, Roffler SR, Cheng TL. Enhanced drug internalization and therapeutic efficacy of PEGylated nanoparticles by one-step formulation with anti-mPEG bispecific antibody in intrinsic drug-resistant breast cancer. Biomater Sci 2019; 7:3404-3417. [DOI: 10.1039/c9bm00323a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
One-step formulation of BsAb with PLD is a simple method to enhance tumor specificity, internalization and the anti-cancer activity.
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Cheng KW, Tseng CH, Tzeng CC, Leu YL, Cheng TC, Wang JY, Chang JM, Lu YC, Cheng CM, Chen IJ, Cheng YA, Chen YL, Cheng TL. Pharmacological inhibition of bacterial β-glucuronidase prevents irinotecan-induced diarrhea without impairing its antitumor efficacy in vivo. Pharmacol Res 2019; 139:41-49. [DOI: 10.1016/j.phrs.2018.10.029] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/13/2018] [Accepted: 10/30/2018] [Indexed: 12/27/2022]
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Shang C, Weaver SR, Zahra N, Huang J, Cheng KW, Chaloupka FJ. The Association between Potential Exposure to Magazine Ads with Voluntary Health Warnings and the Perceived Harmfulness of Electronic Nicotine Delivery Systems (ENDS). Int J Environ Res Public Health 2018; 15:ijerph15040575. [PMID: 29570638 PMCID: PMC5923617 DOI: 10.3390/ijerph15040575] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 12/25/2022]
Abstract
(1) Background: Several brands of electronic nicotine delivery systems (ENDS) carry voluntary health warning messages. This study examined how potential exposure to ENDS magazine ads with these voluntary health warnings were associated with the perceived harmfulness of ENDS. (2) Methods: Risk perception measures and self-reported exposure to ENDS ads were obtained from the 2014 Georgia State University (GSU) Tobacco Products and Risk Perceptions Survey of a nationally representative sample of U.S. adults. We examined the association between potential exposure to magazine ads with warnings and the perceived harms of ENDS relative to cigarettes, using binary logistic regressions and controlling for general ENDS ad exposure and socio-demographic characteristics. (3) Results: Potential exposure to ENDS magazine ads with warnings was associated with a lower probability of considering ENDS to be more or equally harmful compared to cigarettes, particularly among non-smokers (OR = 0.16; 95% CI: 0.04–0.77). In addition, ad exposure, ENDS use history, race/ethnicity, gender, education, and income were also associated with harm perceptions. (4) Conclusions: This study did not find evidence that magazine ads with warnings increased misperceptions that ENDS are equally or more harmful than cigarettes. With more ENDS advertisements carrying warnings, more research is needed to determine how the warnings in advertisements convey relative harm information to consumers and the public.
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Affiliation(s)
- Ce Shang
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
| | - Scott R Weaver
- School of Public Health, Georgia State University, Atlanta, GA 300303, USA.
| | - Nahleen Zahra
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60608, USA.
| | - Jidong Huang
- School of Public Health, Georgia State University, Atlanta, GA 300303, USA.
| | - Kai-Wen Cheng
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
| | - Frank J Chaloupka
- Health Policy Center, Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60608, USA.
- Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL 60608, USA.
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He Y, Shang C, Huang J, Cheng KW, Chaloupka FJ. Global evidence on the effect of point-of-sale display bans on smoking prevalence. Tob Induc Dis 2018. [DOI: 10.18332/tid/84575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Ngo A, Cheng KW, Shang C, Huang J, Chaloupka FJ. Global Evidence on the Association between Cigarette Graphic Warning Labels and Cigarette Smoking Prevalence and Consumption. Int J Environ Res Public Health 2018; 15:ijerph15030421. [PMID: 29495581 PMCID: PMC5876966 DOI: 10.3390/ijerph15030421] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 02/15/2018] [Accepted: 02/22/2018] [Indexed: 11/16/2022]
Abstract
Background: In 2011, the courts ruled in favor of tobacco companies in preventing the implementation of graphic warning labels (GWLs) in the US, stating that FDA had not established the effectiveness of GWLs in reducing smoking. Methods: Data came from various sources: the WHO MPOWER package (GWLs, MPOWER policy measures, cigarette prices), Euromonitor International (smoking prevalence, cigarette consumption), and the World Bank database (countries' demographic characteristics). The datasets were aggregated and linked using country and year identifiers. Fractional logit regressions and OLS regressions were applied to examine the associations between GWLs and smoking prevalence and cigarette consumption, controlling for MPOWER policy scores, cigarette prices, GDP per capita, unemployment, population aged 15-64 (%), aged 65 and over (%), year indicators, and country fixed effects. Results: GWLs were associated with a 0.9-3 percentage point decrease in adult smoking prevalence and were significantly associated with a reduction of 230-287 sticks in per capita cigarette consumption, compared to countries without GWLs. However, the association between GWLs and cigarette consumption became statistically insignificant once country indicators were included in the models. Conclusions: The implementation of GWLs may be associated with reduced cigarette smoking.
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Affiliation(s)
- Anh Ngo
- Department of Economics, the University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Kai-Wen Cheng
- Institute for Health Research and Policy, the University of Illinois at Chicago, Chicago, IL 60608, USA.
| | - Ce Shang
- Institute for Health Research and Policy, the University of Illinois at Chicago, Chicago, IL 60608, USA.
| | - Jidong Huang
- School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
| | - Frank J Chaloupka
- Institute for Health Research and Policy, the University of Illinois at Chicago, Chicago, IL 60608, USA.
- Division of Health Policy and Administration, School of Public Health, the University of Illinois at Chicago, Chicago, IL 60608, USA.
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He Y, Shang C, Huang J, Cheng KW, Chaloupka FJ. Global evidence on the effect of point-of-sale display bans on smoking prevalence. Tob Control 2018; 27:tobaccocontrol-2017-053996. [PMID: 29332006 DOI: 10.1136/tobaccocontrol-2017-053996] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/29/2017] [Accepted: 12/07/2017] [Indexed: 11/03/2022]
Abstract
BACKGROUND Since Iceland became the first country to impose a ban on point-of-sale (POS) tobacco product displays in 2001, 20 countries have implemented POS display bans as of 2016. This study examined the effect that POS display bans have on smoking prevalence. METHODS Data were sourced from Euromonitor International and the WHO MPOWER package for 2007-2014 from 77 countries worldwide. generalised linear models with country and year fixed effects were estimated to analyse the effect of POS display bans on smoking prevalence. RESULTS Having a POS display ban reduced overall adult daily smoking, male smoking and female smoking by about 7%, 6% and 9%, respectively. CONCLUSIONS Having a POS display ban is likely to reduce smoking prevalence and generate public health benefits.
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Affiliation(s)
- Yanyun He
- University of Illinois, Chicago, Illinois, USA
| | - Ce Shang
- Institute for Health Research and Policy, University of Illinois, Chicago, Illinois, USA
| | - Jidong Huang
- School of Public Health, Tobacco Center of Regulatory Science, Georgia State University, Atlanta, Georgia, USA
| | - Kai-Wen Cheng
- University of Illinois, Chicago, Illinois, USA
- Institute for Health Research and Policy, University of Illinois, Chicago, Illinois, USA
| | - Frank J Chaloupka
- University of Illinois, Chicago, Illinois, USA
- Institute for Health Research and Policy, University of Illinois, Chicago, Illinois, USA
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Ngo A, Cheng KW, Chaloupka FJ, Shang C. The effect of MPOWER scores on cigarette smoking prevalence and consumption. Prev Med 2017; 105S:S10-S14. [PMID: 28502576 PMCID: PMC5681881 DOI: 10.1016/j.ypmed.2017.05.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/27/2017] [Accepted: 05/08/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND The World Health Organization (WHO) introduced the MPOWER package to support policy implementation under the Framework Convention on Tobacco Control (FCTC). This study examined the effect of MPOWER policies on smoking prevalence and cigarette consumption in a global context. METHODS The MPOWER composite score was constructed by adding up the six MPOWER scores for each country and survey year 2007-2008, 2010, 2012, and 2014, with a possible range between 6 (1 in each of the six score) and 29 (4 in M score and 5 in POWER scores). MPOWER composite scores that measured policy implementation were then linked to cigarette smoking prevalence and consumption data from Euromonitor International. Fractional logit and OLS regressions were employed to examine the effect of the composite MPOWER score on adult smoking prevalence and cigarette consumption, respectively. RESULTS Results indicate that a 1-unit increase in the composite score reduces smoking prevalence by 0.2 percentage points (p<0.05) among adults and 0.3 percentage points (p<0.01) among adult males; and a reduction of 23 sticks of cigarette (1 pack of cigarettes) in cigarette consumption per capita per year. At this rate, if countries had implemented the MPOWER package to the highest levels during 2007-2014, they would have experienced a reduction in smoking prevalence of 7.26% among adults and 7.87% among adult males and a reduction of 13.80% in cigarette consumption. CONCLUSIONS MPOWER policies were effective in reducing cigarette smoking among adults. Parties should continue to implement MPOWER policies that have been recommended by the WHO FCTC to curb tobacco epidemic.
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Affiliation(s)
- Anh Ngo
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Kai-Wen Cheng
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA; Division of Health Policy and Administration, School of Public Health, University of Illinois at Chicago, Chicago, IL, USA
| | - Frank J Chaloupka
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60607, USA; Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA
| | - Ce Shang
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
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Cheng KW, Tseng CH, Yang CN, Tzeng CC, Cheng TC, Leu YL, Chuang YC, Wang JY, Lu YC, Chen YL, Cheng TL. Specific Inhibition of Bacterial β-Glucuronidase by Pyrazolo[4,3-c]quinoline Derivatives via a pH-Dependent Manner To Suppress Chemotherapy-Induced Intestinal Toxicity. J Med Chem 2017; 60:9222-9238. [DOI: 10.1021/acs.jmedchem.7b00963] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kai-Wen Cheng
- Institute of Biomedical
Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Chih-Hua Tseng
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Fragrance
and Cosmetic Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Research
Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chia-Ning Yang
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 811, Taiwan
| | - Cherng-Chyi Tzeng
- Research
Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ta-Chun Cheng
- Center
for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Lin Leu
- Department
of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan City 717, Tainan
| | - Yu-Chung Chuang
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung 811, Taiwan
| | - Jaw-Yuan Wang
- Graduate Institute
of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Division of Gastroenterology and General Surgery, Department
of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yun-Chi Lu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yeh-Long Chen
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Tian-Lu Cheng
- Institute of Biomedical
Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Center
for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Biomedical and Environmental
Biology, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
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Chen IJ, Chuang CH, Hsieh YC, Lu YC, Lin WW, Huang CC, Cheng TC, Cheng YA, Cheng KW, Wang YT, Chen FM, Cheng TL, Tzou SC. Selective antibody activation through protease-activated pro-antibodies that mask binding sites with inhibitory domains. Sci Rep 2017; 7:11587. [PMID: 28912497 PMCID: PMC5599682 DOI: 10.1038/s41598-017-11886-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 08/31/2017] [Indexed: 12/16/2022] Open
Abstract
Systemic injection of therapeutic antibodies may cause serious adverse effects due to on-target toxicity to the antigens expressed in normal tissues. To improve the targeting selectivity to the region of disease sites, we developed protease-activated pro-antibodies by masking the binding sites of antibodies with inhibitory domains that can be removed by proteases that are highly expressed at the disease sites. The latency-associated peptide (LAP), C2b or CBa of complement factor 2/B were linked, through a substrate peptide of matrix metalloproteinase-2 (MMP-2), to an anti-epidermal growth factor receptor (EGFR) antibody and an anti-tumor necrosis factor-α (TNF-α) antibody. Results showed that all the inhibitory domains could be removed by MMP-2 to restore the binding activities of the antibodies. LAP substantially reduced (53.8%) the binding activity of the anti-EGFR antibody on EGFR-expressing cells, whereas C2b and CBa were ineffective (21% and 9.3% reduction, respectively). Similarly, LAP also blocked 53.9% of the binding activity of the anti-TNF-α antibody. Finally, molecular dynamic simulation showed that the masking efficiency of LAP, C2b and CBa was 33.7%, 10.3% and −5.4%, respectively, over the binding sites of the antibodies. This strategy may aid in designing new protease-activated pro-antibodies that attain high therapeutic potency yet reduced systemic on-target toxicity.
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Affiliation(s)
- I-Ju Chen
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Hung Chuang
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuan-Chin Hsieh
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yun-Chi Lu
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Wei Lin
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Chien-Chiao Huang
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan.,Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ta-Chun Cheng
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-An Cheng
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kai-Wen Cheng
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Yeng-Tseng Wang
- Department of Biochemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fang-Ming Chen
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tian-Lu Cheng
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan. .,Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
| | - Shey-Cherng Tzou
- Institute of Molecular Medicine and Bioengineering, Department of Biological Science and Technology, National Chiao Tung University, Hsin-Chu, Taiwan.
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Abstract
OBJECTIVES This study provides secondhand smoke (SHS) exposure data in utero and after birth when children were at 18 months, 36 months and 66 months old, and it identifies risk factors for the early childhood SHS among 18-month-old infants living in smoker and non-smoker households. STUDY DESIGN The data come from the Taiwan Birth Cohort Study, a longitudinal survey of a birth cohort born in 2005. This study used the survey wave when children were 18 months old (n=18 845) for statistical analysis of early childhood SHS exposure. Logistic regression was used to identify the risk factors of the SHS exposure. RESULTS Approximately 62% of the 18-month-old infants lived in a household with at least one smoker, with the father being the smoker in 84% of those households. Among these infants living in a smoker household, 70% were exposed to SHS and 36% were exposed to heavy SHS in utero, and the prevalence was approximately 66% and 17% after birth for SHS and heavy SHS, respectively. The number and the existence of smokers in the household, parents' smoking status, father's educational attainment and being a first-born baby are strong predictors of early childhood heavy SHS exposure. CONCLUSIONS Encouraging families to have a smoke-free home environment, empowering women to ensure their perspectives and rights are embedded into tobacco control efforts and educating families about the health risks from childhood SHS exposure, especially among people living in households with smokers, will protect non-smoking adults and children from SHS exposure.
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Affiliation(s)
- Kai-Wen Cheng
- Institute for Health Research and Policy and Department of Economics, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Wan-Lin Chiang
- Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Tung-Liang Chiang
- Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan
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Cheng KW, Liu F, Gonzalez M, Glantz S. The Effects of Workplace Clean Indoor Air Law Coverage on Workers' Smoking-Related Outcomes. Health Econ 2017; 26:226-242. [PMID: 26639369 PMCID: PMC4896856 DOI: 10.1002/hec.3288] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 10/11/2015] [Accepted: 10/19/2015] [Indexed: 05/19/2023]
Abstract
This study investigated the effects of workplace clean indoor air law (CIAL) coverage on worksite compliance with CIALs, smoking participation among indoor workers, and secondhand smoke (SHS) exposure among nonsmoker indoor workers. This study improved on previous research by using the probability of a resident in a county covered by workplace CIALs, taking into account the state, county, and city legislation. The county-level probability of being covered by a CIAL is merged into two large nationally representative US surveys on smoking behaviors: Tobacco Use Supplement of the Current Population Survey (2001-2010) and Behavioral Risk Factor Surveillance System (2000-2006) based on the year of the survey and respondent's geographic location to identify respondents' CIAL coverage. This study estimated several model specifications of including and not including state or county fixed effects, and the effects of workplace CIALs are consistent across models. Increased coverage by workplace CIALs significantly increased likelihood of reporting a complete smoking restriction by 8% and 10% for the two different datasets, decreased smoking participation among indoor workers by 12%, and decreased SHS exposure among nonsmokers by 28%. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Kai-Wen Cheng
- Tobacco Center of Regulatory Science, Georgia State University, Atlanta, Georgia, USA and Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - Feng Liu
- School of Management and Economics, CUHK Business School, The Chinese University of Hong Kong, Shenzhen, China
| | - MariaElena Gonzalez
- Public Health, University of California, Merced, CA, USA
- Health Science Research Institute, University of California, Merced, CA, USA
| | - Stanton Glantz
- Center for Tobacco Control Research and Education, Phillip R Lee Institute for Health Policy Studies, and Department of Medicine (Cardiology), University of California San Francisco, CA, USA
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46
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Shang C, Huang J, Cheng KW, He Y, Chaloupka FJ. The Association between Warning Label Requirements and Cigarette Smoking Prevalence by Education-Findings from the Global Adult Tobacco Survey (GATS). Int J Environ Res Public Health 2017; 14:ijerph14010098. [PMID: 28117729 PMCID: PMC5295348 DOI: 10.3390/ijerph14010098] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 11/16/2022]
Abstract
Introduction: The Guidelines for the implementation of Article 11 of the World Health Organization (WHO) Framework Convention on Tobacco Control (FCTC) require that cigarette health warning labels should include pictures and take up 50% or more of the principal display area. This study examined how the association between large pictorial warnings, those covering ≥50% of the front and back of the package, and the prevalence of cigarette smoking varies by educational attainment. Methods: We pooled individual-level tobacco use data from the Global Adult Tobacco Survey (GATS) in 18 countries between 2008 and 2013 and linked them with warning label requirements during the same period from the MPOWER database and reports regarding warnings. The respondents’ self-reported exposure to warnings was examined according to education. Logistic regressions were further employed to analyze education-specific associations between large pictorial warnings and smoking prevalence, and whether such association differed by education was examined using an interaction test. Results: At the time of the survey, eight out of 18 countries had imposed graphic warning labels that covered ≥50% of the package. These warnings were associated with a 10.0% (OR = 0.89; 95% CI: 0.81, 0.97; p ≤ 0.01) lower cigarette smoking prevalence among adults with less than a secondary education or no formal education, but not among respondents with at least a secondary education. Less educated respondents were also less likely to be exposed to warnings in all 18 countries. The association between strong warnings and lower smoking prevalence among less educated respondents could be greater if their exposure to warnings increases. Conclusions: Prominent pictorial warning labels can potentially reduce health disparities resulting from smoking across different education levels.
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Affiliation(s)
- Ce Shang
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
| | - Jidong Huang
- School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
| | - Kai-Wen Cheng
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
- School of Public Health, Georgia State University, Atlanta, GA 30303, USA.
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Yanyun He
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60607, USA.
| | - Frank J Chaloupka
- Institute for Health Research and Policy, University of Illinois at Chicago, Chicago, IL 60608, USA.
- Department of Economics, University of Illinois at Chicago, Chicago, IL 60607, USA.
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47
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Lim KI, Chiu YC, Chen CL, Wang CH, Huang CJ, Cheng KW, Wu SC, Shih TH, Yang SC, Juang SE, Huang CE, Jawan B, Lee YE. Effects of Pre-Existing Liver Disease on Acute Pain Management Using Patient-Controlled Analgesia Fentanyl With Parecoxib After Major Liver Resection: A Retrospective, Pragmatic Study. Transplant Proc 2017; 48:1080-2. [PMID: 27320562 DOI: 10.1016/j.transproceed.2015.11.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 11/06/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND The aim of this study was to compare the outcomes of pain management with the use of patient-controlled analgesia (PCA) fentanyl with IV parecoxib between patients with healthy liver with patients with diseased liver undergoing major liver resection. METHODS Patients with healthy liver undergoing partial hepatectomy as liver donors for liver transplantation (group 1) and patients with liver cirrhosis (Child's criteria A) undergoing major liver resection for hepatoma (group 2) were identified retrospectively. Both groups routinely received post-operative IV PCA fentanyl and a single dose of parecoxib 40 mg. They were followed up for 3 days or until PCA fentanyl was discontinued post-operatively. Daily Visual Analog Scale, PCA fentanyl usage, rescue attempts, and common drug side effects were collected and analyzed with the use of SPSS version 20. RESULTS One hundred one patients were included in the study: 54 in group 1, and 47 in group 2. There were no statistical differences between the two groups in terms of the daily and total fentanyl usage, VAS resting, and incidence of itchiness. The rate of rescue analgesia on post-operative day (POD) 1 was lower in group 2, with a value of P = .045. VAS dynamics were better on POD 1 and 2 for group 2, with P = .05 and P = .012, respectively. CONCLUSIONS We found that combining a single dose of IV parecoxib 40 mg with PCA fentanyl is an easy and effective method of acute pain control after major liver resection. We propose the careful usage of post-operative fentanyl and parecoxib in patients with diseased liver, given the difference in effect as compared with healthy liver.
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Affiliation(s)
- K I Lim
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y C Chiu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C L Chen
- Department of Liver Transplantation Program and Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C H Wang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C J Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - K W Cheng
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Wu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - T H Shih
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Yang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S E Juang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C E Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - B Jawan
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y E Lee
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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48
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Lin WW, Hsieh YC, Cheng YA, Chuang KH, Huang CC, Chuang CH, Chen IJ, Cheng KW, Lu YC, Cheng TC, Wang YT, Roffler SR, Cheng TL. Optimization of an Anti-poly(ethylene glycol) (anti-PEG) Cell-Based Capture System To Quantify PEG and PEGylated Molecules. Anal Chem 2016; 88:12371-12379. [DOI: 10.1021/acs.analchem.6b03614] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Wen-Wei Lin
- Institute
of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | | | | | - Kuo-Hsiang Chuang
- Graduate
Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
| | | | | | | | - Kai-Wen Cheng
- Institute
of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | | | | | | | - Steve R. Roffler
- Institute
of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Tian-Lu Cheng
- Institute
of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
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49
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Lee A, Siu DCH, Au SKL, Chen RCI, Cheng KW, Yau FT, Tong LCT, Chan SY, Tsang WW, Ho M. What are the Needs of Students? An Experience from a District Based Health Promoting Schools Project in Hong Kong. Asia Pac J Public Health 2016; 16 Suppl:S17-21. [PMID: 15828505 DOI: 10.1177/101053950401600s05] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A district based needs assessment as conducted over the past year to uderstand the health problems and the health education needs of the students in Tai Po district, Hong ong. 6879 primary one to primary six students from eighteen rimary schools, participating in a district based Health Promoting Schools Project in Hong Kong, were invited to complete a self-administrated questionnaire which was partly adapted from the Centre for Diseases and Control (CDC)'s Youth Risk Behaviour Surveillance Survey. The results presented a holistic picture of the health and needs of primary students with respect to their general health status, mental health, body weight and dietary behaviour, exercise, preventive health care, tobacco use, alcohol and other drug use, school environment and school health education. It provides baseline information for the project to prioritize the problems and strategically plan health promotion 'programmes with reference to the concept of Health Promoting Schools by the World Health Organization.
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Affiliation(s)
- A Lee
- Centre for Health Education and Health Promotion, Faculty of Medicine, The Chinese University of Hong Kong, 2D Union Court, 18 Fu Kin Street, Tai Wai, N.T., Hong Kong
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50
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Shih TH, Huang CE, Chen CL, Wang CH, Huang CJ, Cheng KW, Wu SC, Juang SE, Lee YE, Wong ZW, Jawan B, Yang SC. Correlation Between Changes in End-Tidal Carbon Dioxide Concentration and Cardiac Output During Inferior Vena Cava Clamping and Unclamping in Living-donor Liver Transplantation. Transplant Proc 2016; 48:1077-9. [PMID: 27320561 DOI: 10.1016/j.transproceed.2015.10.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 10/03/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND To test the hypothesis that low end-tidal carbon dioxide tension encountered during anhepatic phase in liver transplantation is related to hemodynamic status rather than ventilatory status, and can be used to predict the change in cardiac output during anhepatic phase. METHODS We retrospectively analyzed and compared data, included end-tidal carbon dioxide tension (ETCO2), arterial blood pressure, heart rate, central venous pressure, cardiac output, cardiac index, and stroke volume, before and after inferior vena cava clamping, and 0, 5, 10, 30 minutes during the anhepatic, and 5 minutes after the release of IVC cross clamp during the reperfusion phase, with paired Student t test, repeated measurement, and linear regression. P < .05 was regarded as significant. RESULTS The cardiac output and ETCO2 decrease significantly after clamping the inferior vena cava and increase concomitantly after unclamping. There is a positive correlation between the changes in % in cardiac output and ETCO2 (Pearson coefficient r = 0.741). CONCLUSION The changes in ETCO2 can be used to predict the changes of the cardiac output in % when cardiac output monitoring is not available. Before unclamping of the IVC, mild hyperventilation is suggested to prevent excessive increase in PaCO2.
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Affiliation(s)
- T H Shih
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C E Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C L Chen
- Department of Liver Transplantation Program and Surgery, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C H Wang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C J Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - K W Cheng
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Wu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S E Juang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y E Lee
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Z W Wong
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - B Jawan
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Yang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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