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Giang LH, Wu KS, Lee WC, Chu SS, Do AD, Changou CA, Tran HM, Hsieh TH, Chen HH, Hsieh CL, Sung SY, Yu AL, Yen Y, Wong TT, Chang CC. Targeting of RRM2 suppresses DNA damage response and activates apoptosis in atypical teratoid rhabdoid tumor. J Exp Clin Cancer Res 2023; 42:346. [PMID: 38124207 PMCID: PMC10731702 DOI: 10.1186/s13046-023-02911-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/19/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Atypical teratoid rhabdoid tumors (ATRT) is a rare but aggressive malignancy in the central nervous system, predominantly occurring in early childhood. Despite aggressive treatment, the prognosis of ATRT patients remains poor. RRM2, a subunit of ribonucleotide reductase, has been reported as a biomarker for aggressiveness and poor prognostic conditions in several cancers. However, little is known about the role of RRM2 in ATRT. Uncovering the role of RRM2 in ATRT will further promote the development of feasible strategies and effective drugs to treat ATRT. METHODS Expression of RRM2 was evaluated by molecular profiling analysis and was confirmed by IHC in both ATRT patients and PDX tissues. Follow-up in vitro studies used shRNA knockdown RRM2 in three different ATRT cells to elucidate the oncogenic role of RRM2. The efficacy of COH29, an RRM2 inhibitor, was assessed in vitro and in vivo. Western blot and RNA-sequencing were used to determine the mechanisms of RRM2 transcriptional activation in ATRT. RESULTS RRM2 was found to be significantly overexpressed in multiple independent ATRT clinical cohorts through comprehensive bioinformatics and clinical data analysis in this study. The expression level of RRM2 was strongly correlated with poor survival rates in patients. In addition, we employed shRNAs to silence RRM2, which led to significantly decrease in ATRT colony formation, cell proliferation, and migration. In vitro experiments showed that treatment with COH29 resulted in similar but more pronounced inhibitory effect. Therefore, ATRT orthotopic mouse model was utilized to validate this finding, and COH29 treatment showed significant tumor growth suppression and prolong overall survival. Moreover, we provide evidence that COH29 treatment led to genomic instability, suppressed homologous recombinant DNA damage repair, and subsequently induced ATRT cell death through apoptosis in ATRT cells. CONCLUSIONS Collectively, our study uncovers the oncogenic functions of RRM2 in ATRT cell lines, and highlights the therapeutic potential of targeting RRM2 in ATRT. The promising effect of COH29 on ATRT suggests its potential suitability for clinical trials as a novel therapeutic approach for ATRT.
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Affiliation(s)
- Le Hien Giang
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Biology and Genetics, Hai Phong University of Medicine and Pharmacy, Hai Phong, 180000, Vietnam
| | - Kuo-Sheng Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Wei-Chung Lee
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan
| | - Shing-Shung Chu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Anh Duy Do
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- Department of Physiology, Pathophysiology and Immunology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, 700000, Vietnam
| | - Chun A Changou
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Huy Minh Tran
- Department of Neurosurgery, Faculty of Medicine, University of Medicine and Pharmacy, Ho Chi Minh City, 700000, Vietnam
| | - Tsung-Han Hsieh
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, 110, Taiwan
| | - Hsin-Hung Chen
- Division of Pediatric Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, 112, Taiwan
| | - Chia-Ling Hsieh
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan
- Laboratory of Translational Medicine, Development Center for Biotechnology, Taipei, 115, Taiwan
| | - Shian-Ying Sung
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan
| | - Alice L Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou and Chang Gung University, Taoyuan, 333, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Yun Yen
- The Ph.D. Program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Tai-Tong Wong
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Medical University, Taipei, 110, Taiwan
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital and Taipei Neuroscience Institute, Taipei Medical University, Taipei, 110, Taiwan
- Neuroscience Research Center, Taipei Medical University Hospital, Taipei, 110, Taiwan
- TMU Research Center for Cancer Translational Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Che-Chang Chang
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 110, Taiwan.
- Neuroscience Research Center, Taipei Medical University Hospital, Taipei, 110, Taiwan.
- TMU Research Center for Cancer Translational Medicine, Taipei Medical University, Taipei, 110, Taiwan.
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, 6F., Education & Research Building, Shuang-Ho Campus, No. 301, Yuantong Rd., Zhonghe Dist., New Taipei City, 23564, Taiwan.
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2
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Yang TT, Chiang MF, Chang CC, Yang SY, Huang SW, Liao NS, Shih HM, Hsu W, Lin KI. SENP2 restrains the generation of pathogenic Th17 cells in mouse models of colitis. Commun Biol 2023; 6:629. [PMID: 37301920 PMCID: PMC10257679 DOI: 10.1038/s42003-023-05009-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
The molecular mechanisms contributing to the regulation of Th17-mediated inflammation remain underexplored. We here report a SUMO-specific protease (SENP)2-mediated pathway induced in pathogenic Th17 cells that restricts the pathogenesis of inflammatory colitis. SENP2 regulates the maturation of small ubiquitin-like modifiers (SUMO) and recycles SUMO from the substrate proteins. We find higher levels of SENP2 in pathogenic Th17 cells. By deleting Senp2 in T-cell lineages in mice, we demonstrate that the lack of Senp2 exacerbates the severity of experimental colitis, which is linked to elevated levels of GM-CSF+IL-17A+ pathogenic Th17 cells and more severe dysbiosis of the intestinal microbiome. Adoptive transfer experiments demonstrate the cell-autonomous effect of Senp2 in restraining Th17 differentiation and colitis. The enzymatic activity of SENP2 is important for deSUMOylation of Smad4, which reduces Smad4 nuclear entry and Rorc expression. Our findings reveal a SENP2-mediated regulatory axis in the pathogenicity of Th17 cells.
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Affiliation(s)
- Tsan-Tzu Yang
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, 10002, Taiwan
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Ming-Feng Chiang
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Shii-Yi Yang
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan
| | - Shih-Wen Huang
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Nan-Shih Liao
- Institute of Molecular Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Wei Hsu
- Forsyth Institute, Harvard School of Dental Medicine, Harvard Stem Cell Institute, Harvard University, Cambridge, MA, 02142, USA
| | - Kuo-I Lin
- Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, 10002, Taiwan.
- Genomics Research Center, Academia Sinica, Taipei, 11529, Taiwan.
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3
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Wu KS, Sung SY, Huang MH, Lin YL, Chang CC, Fang CL, Wong TT, Chen HH, Tsai ML. Clinical and Molecular Features in Medulloblastomas Subtypes in Children in a Cohort in Taiwan. Cancers (Basel) 2022; 14:cancers14215419. [PMID: 36358838 PMCID: PMC9657873 DOI: 10.3390/cancers14215419] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 10/27/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Simple Summary Medulloblastoma (MB) was classified into four subgroups: WNT, SHH, group 3, and group 4. In 2017, 12 subtypes within 4 subgroups and 8 subtypes within non-WNT/non-SHH subgroups according to the heterogenous features were announced. In this study, we aimed to identify the heterogeneity of molecular features for discovering subtype specific factors linked to diagnosis and prognosis. We retrieved 70 MBs to perform RNA sequencing and a DNA methylation array. Integrated with clinical annotations, we classified 12 subtypes of pediatric MBs. We found that M2 macrophages were enriched in SHH β, which correlated with good outcomes of SHH MBs. The high infiltration of M2 macrophages may be an indicator of a favorable prognosis and therapeutic target for SHH MBs. Furthermore, C11orf95-RELA fusion was observed to be associated with recurrence and a poor prognosis. These results will contribute to the establishment of a molecular diagnosis linked to prognostic factors of relevance for MBs. Abstract Medulloblastoma (MB) was classified into four molecular subgroups: WNT, SHH, group 3, and group 4. In 2017, 12 subtypes within 4 subgroups and 8 subtypes within non-WNT/non-SHH subgroups according to the differences of clinical features and biology were announced. In this study, we aimed to identify the heterogeneity of molecular features for discovering subtype specific factors linked to diagnosis and prognosis. We retrieved 70 MBs in children to perform RNA sequencing and a DNA methylation array in Taiwan. Integrated with clinical annotations, we achieved classification of 12 subtypes of pediatric MBs in our cohort series with reference to the other reported series. We analyzed the correlation of cell type enrichment in SHH MBs and found that M2 macrophages were enriched in SHH β, which related to good outcomes of SHH MBs. The high infiltration of M2 macrophages may be an indicator of a favorable prognosis and therapeutic target for SHH MBs. Furthermore, C11orf95-RELA fusion was observed to be associated with recurrence and a poor prognosis. These results will contribute to the establishment of a molecular diagnosis linked to prognostic indicators of relevance and help to promote molecular-based risk stratified treatment for MBs in children.
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Affiliation(s)
- Kuo-Sheng Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Shian-Ying Sung
- International Ph.D. Program for Translational Science, Taipei Medical University, Taipei 110, Taiwan
- The Ph.D. Program for Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Man-Hsu Huang
- Department of Pathology, Shuang-Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan
| | - Yu-Ling Lin
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei 115, Taiwan
| | - Che-Chang Chang
- International Ph.D. Program for Translational Science, Taipei Medical University, Taipei 110, Taiwan
- The Ph.D. Program for Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Chia-Lang Fang
- Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Pathology, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
| | - Tai-Tong Wong
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Neuroscience Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Hsin-Hung Chen
- Division of Pediatric Neurosurgery, The Neurological Institute, Taipei Veterans General Hospital and School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Correspondence: (H.-H.C.); (M.-L.T.)
| | - Min-Lan Tsai
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Medical University, Taipei 110, Taiwan
- Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Pediatrics, College of Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (H.-H.C.); (M.-L.T.)
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Huang YS, Wu CC, Chang CC, Huang SF, Kuo HY, Shih HM. Reciprocal regulation of Daxx and PIK3CA promotes colorectal cancer cell growth. Cell Mol Life Sci 2022; 79:367. [PMID: 35718818 DOI: 10.1007/s00018-022-04399-8] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 02/06/2023]
Abstract
Upregulation of death-domain-associated protein (Daxx) is strongly associated with diverse cancer types. Among these, the clinicopathological significance and molecular mechanisms of Daxx overexpression in colorectal cancer (CRC) remain unknown. Here, we showed that Daxx expression was increased in both clinical CRC samples and CRC cell lines. Daxx knockdown significantly reduced proliferation activity in CRC cells and tumor growth in a xenograft model. Further studies revealed that Daxx expression could be attenuated by either treatment with the PIK3CA inhibitor PIK-75 or PIK3CA depletion in CRC cells. Conversely, expression of PIK3CA constitutively active mutants could increase Daxx expression. These data suggest that PIK3CA positively regulates Daxx expression. Consistently, the expression levels of PIK3CA and Daxx were positively correlated in sporadic CRC samples. Interestingly, Daxx knockdown or overexpression yielded decreased or increased levels of PIK3CA, respectively, in CRC cells. We further demonstrated that Daxx activates the promoter activity and expression of PIK3CA. Altogether, our results identify a mechanistic pathway of Daxx overexpression in CRC and suggest a reciprocal regulation between Daxx and PIK3CA for CRC cell growth.
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Affiliation(s)
- Yen-Sung Huang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan.
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.
| | - Chang-Chieh Wu
- Department of Surgery, Tri-Service General Hospital Keelung Branch, National Defense Medical Center, Keelung, 20244, Taiwan
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, 11031, Taiwan
| | - Shiu-Feng Huang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan
| | - Hong-Yi Kuo
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan.
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Zhunan, Miaoli County, 35053, Taiwan.
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5
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Tsai YT, Li CY, Huang YH, Chang TS, Lin CY, Chuang CH, Wang CY, Anuraga G, Chang TH, Shih TC, Lin ZY, Chen YL, Chung I, Lee KH, Chang CC, Sung SY, Yang KH, Tsui WL, Yap CV, Wu MH. Galectin-1 orchestrates an inflammatory tumor-stroma crosstalk in hepatoma by enhancing TNFR1 protein stability and signaling in carcinoma-associated fibroblasts. Oncogene 2022; 41:3011-3023. [PMID: 35459781 DOI: 10.1038/s41388-022-02309-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 01/10/2023]
Abstract
Most cases of hepatocellular carcinoma (HCC) arise with the fibrotic microenvironment where hepatic stellate cells (HSCs) and carcinoma-associated fibroblasts (CAFs) are critical components in HCC progression. Therefore, CAF normalization could be a feasible therapy for HCC. Galectin-1 (Gal-1), a β-galactoside-binding lectin, is critical for HSC activation and liver fibrosis. However, few studies has evaluated the pathological role of Gal-1 in HCC stroma and its role in hepatic CAF is unclear. Here we showed that Gal-1 mainly expressed in HCC stroma, but not cancer cells. High expression of Gal-1 is correlated with CAF markers and poor prognoses of HCC patients. In co-culture systems, targeting Gal-1 in CAFs or HSCs, using small hairpin (sh)RNAs or an therapeutic inhibitor (LLS30), downregulated plasminogen activator inhibitor-2 (PAI-2) production which suppressed cancer stem-like cell properties and invasion ability of HCC in a paracrine manner. The Gal-1-targeting effect was mediated by increased a disintegrin and metalloprotease 17 (ADAM17)-dependent TNF-receptor 1 (TNFR1) shedding/cleavage which inhibited the TNF-α → JNK → c-Jun/ATF2 signaling axis of pro-inflammatory gene transcription. Silencing Gal-1 in CAFs inhibited CAF-augmented HCC progression and reprogrammed the CAF-mediated inflammatory responses in a co-injection xenograft model. Taken together, the findings uncover a crucial role of Gal-1 in CAFs that orchestrates an inflammatory CSC niche supporting HCC progression and demonstrate that targeting Gal-1 could be a potential therapy for fibrosis-related HCC.
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Affiliation(s)
- Yao-Tsung Tsai
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chih-Yi Li
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yen-Hua Huang
- Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan.,Department of Biochemistry and Molecular Cell Biology, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Center for Cell Therapy and Regeneration Medicine, Taipei Medical University, Taipei, Taiwan
| | - Te-Sheng Chang
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi, Taiwan
| | - Chung-Yen Lin
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
| | | | - Chih-Yang Wang
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Gangga Anuraga
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Tzu-Hao Chang
- Graduate Institute of Biomedical Informatics, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Chieh Shih
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Sacramento, CA, USA
| | - Zu-Yau Lin
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yuh-Ling Chen
- Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ivy Chung
- Universiti Malaya Cancer Research Institute, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, 50603, Malaysia.,Department of Pharmacology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, 50603, Malaysia
| | - Kuen-Haur Lee
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Che-Chang Chang
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Shian-Ying Sung
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kai-Huei Yang
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Wan-Lin Tsui
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chee-Voon Yap
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan
| | - Ming-Heng Wu
- International PhD Program for Translational Science, Taipei Medical University, Taipei, Taiwan. .,Graduate Institute of Translational Medicine, College of Medical Sciences and Technology, Taipei Medical University, Taipei, Taiwan. .,Center for Cell Therapy and Regeneration Medicine, Taipei Medical University, Taipei, Taiwan. .,TMU Research Center of Cancer Translational Medicine, Taipei, Taiwan.
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Lee YH, Tsai YS, Chang CC, Ho CC, Shih HM, Chen HM, Lai HL, Lee CW, Lee YC, Liao YC, Yang UC, Cheng TH, Chern Y, Soong BW. A PIAS1 Protective Variant S510G Delays polyQ Disease Onset by Modifying Protein Homeostasis. Mov Disord 2021; 37:767-777. [PMID: 34951052 DOI: 10.1002/mds.28896] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/18/2021] [Accepted: 12/09/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Polyglutamine (polyQ) diseases are dominant neurodegenerative diseases caused by an expansion of the polyQ-encoding CAG repeats in the disease-causing gene. The length of the CAG repeats is the major determiner of the age at onset (AO) of polyQ diseases, including Huntington's disease (HD) and spinocerebellar ataxia type 3 (SCA3). OBJECTIVE We set out to identify common genetic variant(s) that may affect the AO of polyQ diseases. METHODS Three hundred thirty-seven patients with HD or SCA3 were enrolled for targeted sequencing of 583 genes implicated in proteinopathies. In total, 16 genes were identified as containing variants that are associated with late AO of polyQ diseases. For validation, we further investigate the variants of PIAS1 because PIAS1 is an E3 SUMO (small ubiquitin-like modifier) ligase for huntingtin (HTT), the protein linked to HD. RESULTS Biochemical analyses revealed that the ability of PIAS1S510G to interact with mutant huntingtin (mHTT) was less than that of PIAS1WT , resulting in lower SUMOylation of mHTT and lower accumulation of insoluble mHTT. Genetic knock-in of PIAS1S510G in a HD mouse model (R6/2) ameliorated several HD-like deficits (including shortened life spans, poor grip strength and motor coordination) and reduced neuronal accumulation of mHTT. CONCLUSIONS Our findings suggest that PIAS1 is a genetic modifier of polyQ diseases. The naturally occurring variant, PIAS1S510G , is associated with late AO in polyQ disease patients and milder disease severity in HD mice. Our study highlights the possibility of targeting PIAS1 or pathways governing protein homeostasis as a disease-modifying approach for treating patients with HD.
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Affiliation(s)
- Yan Hua Lee
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yu-Shuen Tsai
- Center for Systems and Synthetic Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine and International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Chun-Chen Ho
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hui-Mei Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hsing-Lin Lai
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chia-Wei Lee
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yi-Chung Lee
- Department of Neurology, Taipei Veterans General Hospital, and Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yi-Chu Liao
- Department of Neurology, Taipei Veterans General Hospital, and Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ueng-Cheng Yang
- Center for Systems and Synthetic Biology, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tzu-Hao Cheng
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan.,Institute of Biochemistry and Molecular Biology, and Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yijuang Chern
- Taiwan International Graduate Program in Molecular Medicine, National Yang Ming Chiao Tung University and Academia Sinica, Taipei, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Bing-Wen Soong
- Department of Neurology, Taipei Veterans General Hospital, and Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Neurology, Shuang Ho Hospital, and Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
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7
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Liang KH, Chang CC, Wu KS, Yu AL, Sung SY, Lee YY, Liang ML, Chen HH, Fen JJ, Chao ME, Liao YT, Wong TT. Notch signaling and natural killer cell infiltration in tumor tissues underlie medulloblastoma prognosis. Sci Rep 2021; 11:23282. [PMID: 34857809 PMCID: PMC8639846 DOI: 10.1038/s41598-021-02651-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/17/2021] [Indexed: 12/12/2022] Open
Abstract
Medulloblastoma is the most common embryonic brain tumor in children. We investigated a cohort of 52 Asian medulloblastoma patients aged between 0 and 19 years old, who received surgical resections and post-resection treatments in the Taipei Medical University Hospital and the Taipei Veterans General Hospital. Genome-wide RNA sequencing was performed on fresh-frozen surgical tissues. These data were analyzed using the CIBERSORTx immune deconvolution software. Two external clinical and molecular datasets from United States (n = 62) and Canada (n = 763) were used to evaluate the transferability of the gene-signature scores across ethnic populations. The abundance of 13 genes, including DLL1, are significantly associated with overall survival (All Cox regression P < 0.001). A gene-signature score was derived from the deep transcriptome, capable of indicating patients’ subsequent tumor recurrence (Hazard Ratio [HR] 1.645, confidence interval [CI] 1.337–2.025, P < 0.001) and mortality (HR 2.720, CI 1.798–4.112, P < 0.001). After the adjustment of baseline clinical factors, the score remains indicative of recurrence-free survival (HR 1.604, CI 1.292–1.992, P < 0.001) and overall survival (HR 2.781, CI 1.762–4.390, P < 0.001). Patients stratified by this score manifest not only distinct prognosis but also different molecular characteristics: Notch signaling ligands and receptors are comparatively overexpressed in patients with poorer prognosis, while tumor infiltrating natural killer cells are more abundant in patients with better prognosis. Additionally, immunohistochemical staining showed the DLL1 protein, a major ligand in the Notch signaling pathway, and the NCAM1 protein, a representative biomarker of natural killer cells, are present in the surgical tissues of patients of four molecular subgroups, WNT, SHH, Group 3 and Group 4. NCAM1 RNA level is also positively associated with the mutation burden in tumor (P = 0.023). The gene-signature score is validated successfully in the Canadian cohort (P = 0.009) as well as its three molecular subgroups (SHH, Group 3 and Group 4; P = 0.047, 0.018 and 0.040 respectively). In conclusion, pediatric medullablastoma patients can be stratified by gene-signature scores with distinct prognosis and molecular characteristics. Ligands and receptors of the Notch signaling pathway are overexpressed in the patient stratum with poorer prognosis. Tumor infiltrating natural killer cells are more abundant in the patient stratum with better prognosis.
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Affiliation(s)
- Kung-Hao Liang
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan. .,Institute of Food Safety and Health Risk Assessment, National Yang-Ming Chiao-Tung University, Taipei, Taiwan. .,Institute of Biomedical Informatics, National Yang-Ming Chiao-Tung University, Taipei, Taiwan.
| | - Che-Chang Chang
- The PhD Program for Translational Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Kuo-Sheng Wu
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Alice L Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou and Chang Gung University, Taoyuan, 333, Taiwan.,Genomics Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Shian-Ying Sung
- The PhD Program for Translational Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Yi-Yen Lee
- Division of Paediatric Neurosurgery, the Neurological Institute, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, 112, Taiwan
| | - Muh-Lii Liang
- Division of Paediatric Neurosurgery, the Neurological Institute, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, 112, Taiwan
| | - Hsin-Hung Chen
- Division of Paediatric Neurosurgery, the Neurological Institute, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University, Taipei, 112, Taiwan
| | - Jun-Jeng Fen
- Department of Informatics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Meng-En Chao
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Yi-Ting Liao
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tai-Tong Wong
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan. .,Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Medical University, Taipei, 110, Taiwan. .,Division of Pediatric Neurosurgery, Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, 110, Taiwan. .,Neuroscience Research Center, Taipei Medical University Hospital, Taipei, 110, Taiwan.
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8
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Tan SH, Yougbaré S, Tao HY, Chang CC, Kuo TR. Plasmonic Gold Nanoisland Film for Bacterial Theranostics. Nanomaterials (Basel) 2021; 11:3139. [PMID: 34835903 PMCID: PMC8621882 DOI: 10.3390/nano11113139] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 11/18/2021] [Indexed: 12/28/2022]
Abstract
Plasmonic nanomaterials have been intensively explored for applications in biomedical detection and therapy for human sustainability. Herein, plasmonic gold nanoisland (NI) film (AuNIF) was fabricated onto a glass substrate by a facile seed-mediated growth approach. The structure of the tortuous gold NIs of the AuNIF was demonstrated by scanning electron microscopy and energy-dispersive X-ray spectroscopy. Based on the ultraviolet-visible spectrum, the AuNIF revealed plasmonic absorption with maximum intensity at 624 nm. With the change to the surface topography created by the NIs, the capture efficiency of Escherichia coli (E. coli) by the AuNIF was significantly increased compared to that of the glass substrate. The AuNIF was applied as a surface-enhanced Raman scattering (SERS) substrate to enhance the Raman signal of E. coli. Moreover, the plasmonic AuNIF exhibited a superior photothermal effect under irradiation with simulated AM1.5 sunlight. For photothermal therapy, the AuNIF also displayed outstanding efficiency in the photothermal killing of E. coli. Using a combination of SERS detection and photothermal therapy, the AuNIF could be a promising platform for bacterial theranostics.
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Affiliation(s)
- Shih-Hua Tan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan;
| | - Sibidou Yougbaré
- Institut de Recherche en Sciences de la Santé (IRSS-DRCO)/Nanoro, 03 B.P 7192, Ouagadougou 03, Burkina Faso;
| | - Hsuan-Ya Tao
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan;
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan;
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
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9
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Yougbaré S, Mutalik C, Okoro G, Lin IH, Krisnawati DI, Jazidie A, Nuh M, Chang CC, Kuo TR. Emerging Trends in Nanomaterials for Antibacterial Applications. Int J Nanomedicine 2021; 16:5831-5867. [PMID: 34475754 PMCID: PMC8405884 DOI: 10.2147/ijn.s328767] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/04/2021] [Indexed: 01/11/2023] Open
Abstract
Around the globe, surges of bacterial diseases are causing serious health threats and related concerns. Recently, the metal ion release and photodynamic and photothermal effects of nanomaterials were demonstrated to have substantial efficiency in eliminating resistance and surges of bacteria. Nanomaterials with characteristics such as surface plasmonic resonance, photocatalysis, structural complexities, and optical features have been utilized to control metal ion release, generate reactive oxygen species, and produce heat for antibacterial applications. The superior characteristics of nanomaterials present an opportunity to explore and enhance their antibacterial activities leading to clinical applications. In this review, we comprehensively list three different antibacterial mechanisms of metal ion release, photodynamic therapy, and photothermal therapy based on nanomaterials. These three different antibacterial mechanisms are divided into their respective subgroups in accordance with recent achievements, showcasing prospective challenges and opportunities in clinical, environmental, and related fields.
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Affiliation(s)
- Sibidou Yougbaré
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
- Institut de Recherche en Sciences de la Santé (IRSS-DRCO)/Nanoro, Ouagadougou, Burkina Faso
| | - Chinmaya Mutalik
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | - Goodluck Okoro
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | - I-Hsin Lin
- School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
| | | | - Achmad Jazidie
- Department of Electrical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia
- Universitas Nahdlatul Ulama Surabaya, Surabaya, 60237, Indonesia
| | - Mohammad Nuh
- Universitas Nahdlatul Ulama Surabaya, Surabaya, 60237, Indonesia
- Department of Biomedical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, 60111, Indonesia
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
- International Ph.D. Program for Translational Science, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Tsung-Rong Kuo
- International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, 11031, Taiwan
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10
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Kuo WL, Tseng LL, Chang CC, Chen CJ, Cheng ML, Cheng HH, Wu MJ, Chen YL, Chang RT, Tang HY, Hsu YC, Lin WJ, Kao CY, Hsieh WP, Kung HJ, Wang WC. Prognostic Significance of O-GlcNAc and PKM2 in Hormone Receptor-Positive and HER2-Nonenriched Breast Cancer. Diagnostics (Basel) 2021; 11:diagnostics11081460. [PMID: 34441396 PMCID: PMC8392504 DOI: 10.3390/diagnostics11081460] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/10/2021] [Accepted: 08/10/2021] [Indexed: 12/24/2022] Open
Abstract
Predictive metabolic biomarkers for the recurrent luminal breast cancer (BC) with hormone receptor (HR)-positive and human epidermal growth factor receptor type 2 (HER2)-negative are lacking. High levels of O-GlcNAcylation (O-GlcNAc) and pyruvate kinase isoenzyme M2 (PKM2) are associated with malignancy in BC; however, the association with the recurrence risk remains unclear. We first conduct survival analysis by using the METABRIC dataset to assess the correlation of PKM2 expression with BC clinical outcomes. Next, patients with HR+/HER2- luminal BC were recruited for PKM2/O-GlcNAc testing. Logistic regression and receiver operating characteristic curve analysis were performed to evaluate the 10-year DFS predicted outcome. Survival analysis of the METABRIC dataset revealed that high expression of PKM2 was significantly associated with worse overall survival in luminal BC. The high expression of O-GlcNAc or PKM2 was a significant independent marker for poor 10-year DFS using immunohistochemical analysis. The PKM2 or O-GlcNAc status was a significant predictor of DFS, with the combination of PKM2–O-GlcNAc status and T stage greatly enhancing the predictive outcome potential. In summary, O-GlcNAc, PKM2, and T stage serve as good prognostic discriminators in HR+/HER2− luminal BC.
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Affiliation(s)
- Wen-Ling Kuo
- Division of Breast Surgery, General Surgery, Department of Surgery, Chang Gung Memorial Hospital Linkou Medical Center, Taoyuan City 33305, Taiwan;
| | - Lin-Lu Tseng
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu City 30013, Taiwan; (L.-L.T.); (H.-H.C.); (M.-J.W.); (Y.-L.C.)
| | - Che-Chang Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei City 11031, Taiwan; (C.-C.C.); (R.-T.C.)
| | - Chih-Jung Chen
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung City 40705, Taiwan; (C.-J.C.); (Y.-C.H.)
- School of Medicine, Chung Shan Medical University, Taichung City 40201, Taiwan
| | - Mei-Ling Cheng
- Department of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan City 33302, Taiwan;
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan;
| | - Hsin-Hung Cheng
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu City 30013, Taiwan; (L.-L.T.); (H.-H.C.); (M.-J.W.); (Y.-L.C.)
| | - Meng-Jen Wu
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu City 30013, Taiwan; (L.-L.T.); (H.-H.C.); (M.-J.W.); (Y.-L.C.)
| | - Yu-Lun Chen
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu City 30013, Taiwan; (L.-L.T.); (H.-H.C.); (M.-J.W.); (Y.-L.C.)
| | - Ruei-Ting Chang
- The Ph.D. Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei City 11031, Taiwan; (C.-C.C.); (R.-T.C.)
| | - Hsiang-Yu Tang
- Metabolomics Core Laboratory, Healthy Aging Research Center, Chang Gung University, Taoyuan City 33302, Taiwan;
| | - Yong-Chen Hsu
- Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung City 40705, Taiwan; (C.-J.C.); (Y.-C.H.)
| | - Wen-Jye Lin
- Immunology Research Center, National Health Research Institutes, Miaoli County 35053, Taiwan; (W.-J.L.); (C.-Y.K.)
| | - Cheng-Yuan Kao
- Immunology Research Center, National Health Research Institutes, Miaoli County 35053, Taiwan; (W.-J.L.); (C.-Y.K.)
| | - Wen-Ping Hsieh
- Institute of Statistics, National Tsing Hua University, Hsinchu City 30013, Taiwan;
| | - Hsing-Jien Kung
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei City 11031, Taiwan;
- Department of Biochemistry and Molecular Medicine, University of California Davis School of Medicine, University of California Davis Cancer Centre, Sacramento, CA 95817, USA
| | - Wen-Ching Wang
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu City 30013, Taiwan; (L.-L.T.); (H.-H.C.); (M.-J.W.); (Y.-L.C.)
- Correspondence: ; Tel.: +886-35742766
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11
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Tsai KL, Chang CC, Chang YS, Lu YY, Tsai IJ, Chen JH, Lin SH, Tai CC, Lin YF, Chang HW, Lin CY, Su ECY. Isotypes of autoantibodies against novel differential 4-hydroxy-2-nonenal-modified peptide adducts in serum is associated with rheumatoid arthritis in Taiwanese women. BMC Med Inform Decis Mak 2021; 21:49. [PMID: 33568149 PMCID: PMC7874460 DOI: 10.1186/s12911-020-01380-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 12/21/2020] [Indexed: 01/03/2023] Open
Abstract
Background Rheumatoid arthritis (RA) is an autoimmune disorder with systemic inflammation and may be induced by oxidative stress that affects an inflamed joint. Our objectives were to examine isotypes of autoantibodies against 4-hydroxy-2-nonenal (HNE) modifications in RA and associate them with increased levels of autoantibodies in RA patients. Methods Serum samples from 155 female patients [60 with RA, 35 with osteoarthritis (OA), and 60 healthy controls (HCs)] were obtained. Four novel differential HNE-modified peptide adducts, complement factor H (CFAH)1211–1230, haptoglobin (HPT)78–108, immunoglobulin (Ig) kappa chain C region (IGKC)2–19, and prothrombin (THRB)328–345, were re-analyzed using tandem mass spectrometric (MS/MS) spectra (ProteomeXchange: PXD004546) from RA patients vs. HCs. Further, we determined serum protein levels of CFAH, HPT, IGKC and THRB, HNE-protein adducts, and autoantibodies against unmodified and HNE-modified peptides. Significant correlations and odds ratios (ORs) were calculated. Results Levels of HPT in RA patients were greatly higher than the levels in HCs. Levels of HNE-protein adducts and autoantibodies in RA patients were significantly greater than those of HCs. IgM anti-HPT78−108 HNE, IgM anti-IGKC2−19, and IgM anti-IGKC2−19 HNE may be considered as diagnostic biomarkers for RA. Importantly, elevated levels of IgM anti-HPT78−108 HNE, IgM anti-IGKC2−19, and IgG anti-THRB328−345 were positively correlated with the disease activity score in 28 joints for C-reactive protein (DAS28-CRP). Further, the ORs of RA development through IgM anti-HPT78−108 HNE (OR 5.235, p < 0.001), IgM anti-IGKC2−19 (OR 12.655, p < 0.001), and IgG anti-THRB328−345 (OR 5.761, p < 0.001) showed an increased risk. Lastly, we incorporated three machine learning models to differentiate RA from HC and OA, and performed feature selection to determine discriminative features. Experimental results showed that our proposed method achieved an area under the receiver operating characteristic curve of 0.92, which demonstrated that our selected autoantibodies combined with machine learning can efficiently detect RA.
Conclusions This study discovered that some IgG- and IgM-NAAs and anti-HNE M-NAAs may be correlated with inflammation and disease activity in RA. Moreover, our findings suggested that IgM anti-HPT78−108 HNE, IgM anti-IGKC2−19, and IgG anti-THRB328−345 may play heavy roles in RA development.
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Affiliation(s)
- Kai-Leun Tsai
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Yu-Sheng Chang
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Yi-Ying Lu
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan
| | - I-Jung Tsai
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan
| | - Jin-Hua Chen
- Graduate Institute of Data Science, College of Management, Taipei Medical University, Taipei, 11031, Taiwan.,Research Center of Biostatistics, College of Management, Taipei Medical University, Taipei, 11031, Taiwan
| | - Sheng-Hong Lin
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Chih-Chun Tai
- Department of Laboratory Medicine, Taipei Medical University-Shuang-Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Yi-Fang Lin
- Department of Laboratory Medicine, Taipei Medical University-Shuang-Ho Hospital, Taipei Medical University, New Taipei City, 23561, Taiwan
| | - Hui-Wen Chang
- Department of Medical Laboratory, Taipei Medical University Hospital, Taipei, 11031, Taiwan.,PhD Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Ching-Yu Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan. .,PhD Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan. .,Department of Biotechnology and Animal Science, National Ilan University, Ilan, 26047, Taiwan.
| | - Emily Chia-Yu Su
- Graduate Institute of Biomedical Informatics, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan. .,Clinical Big Data Research Center, Taipei Medical University Hospital, Taipei, 11031, Taiwan.
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12
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Chu CY, Lee YC, Hsieh CH, Yeh CT, Chao TY, Chen PH, Lin IH, Hsieh TH, Shih JW, Cheng CH, Chang CC, Lin PS, Huang YL, Chen TM, Yen Y, Ann DK, Kung HJ. Genome-wide CRISPR/Cas9 knockout screening uncovers a novel inflammatory pathway critical for resistance to arginine-deprivation therapy. Theranostics 2021; 11:3624-3641. [PMID: 33664852 PMCID: PMC7914361 DOI: 10.7150/thno.51795] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 08/10/2020] [Accepted: 01/01/2021] [Indexed: 12/24/2022] Open
Abstract
Arginine synthesis deficiency due to the suppressed expression of ASS1 (argininosuccinate synthetase 1) represents one of the most frequently occurring metabolic defects of tumor cells. Arginine-deprivation therapy has gained increasing attention in recent years. One challenge of ADI-PEG20 (pegylated ADI) therapy is the development of drug resistance caused by restoration of ASS1 expression and other factors. The goal of this work is to identify novel factors conferring therapy resistance. Methods: Multiple, independently derived ADI-resistant clones including derivatives of breast (MDA-MB-231 and BT-549) and prostate (PC3, CWR22Rv1, and DU145) cancer cells were developed. RNA-seq and RT-PCR were used to identify genes upregulated in the resistant clones. Unbiased genome-wide CRISPR/Cas9 knockout screening was used to identify genes whose absence confers sensitivity to these cells. shRNA and CRISPR/Cas9 knockout as well as overexpression approaches were used to validate the functions of the resistant genes both in vitro and in xenograft models. The signal pathways were verified by western blotting and cytokine release. Results: Based on unbiased CRISPR/Cas9 knockout screening and RNA-seq analyses of independently derived ADI-resistant (ADIR) clones, aberrant activation of the TREM1/CCL2 axis in addition to ASS1 expression was consistently identified as the resistant factors. Unlike ADIR, MDA-MB-231 overexpressing ASS1 cells achieved only moderate ADI resistance both in vitro and in vivo, and overexpression of ASS1 alone does not activate the TREM1/CCL2 axis. These data suggested that upregulation of TREM1 is an independent factor in the development of strong resistance, which is accompanied by activation of the AKT/mTOR/STAT3/CCL2 pathway and contributes to cell survival and overcoming the tumor suppressive effects of ASS1 overexpression. Importantly, knockdown of TREM1 or CCL2 significantly sensitized ADIR toward ADI. Similar results were obtained in BT-549 breast cancer cell line as well as castration-resistant prostate cancer cells. The present study sheds light on the detailed mechanisms of resistance to arginine-deprivation therapy and uncovers novel targets to overcome resistance. Conclusion: We uncovered TREM1/CCL2 activation, in addition to restored ASS1 expression, as a key pathway involved in full ADI-resistance in breast and prostate cancer models.
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Tran MH, Wu KS, Chang CC, Wong TT. ATRT-01. UPREGULATION OF PROTEIN SYNTHESIS AND PROTEASOME DEGRADATION CONFERS SENSITIVITY TO PROTEASOME INHIBITOR BORTEZOMIB IN MYC-ATYPICAL TERATOID/RHABDOID TUMORS. Neuro Oncol 2020. [PMCID: PMC7715207 DOI: 10.1093/neuonc/noaa222.001] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Atypical teratoid rhabdoid tumors (ATRTs) are among the most malignant brain tumors in early childhood and remain incurable. Myc-ATRT is driven by the Myc oncogene, which directly controls the intracellular protein synthesis rate. Proteasome inhibitor bortezomib (BTZ) was approved by the Food and Drug Administration as a primary treatment for multiple myeloma. This study aimed to determine whether the upregulation of protein synthesis and proteasome degradation in Myc-ATRTs increases tumor cell sensitivity to BTZ. METHODS We performed differential gene expression and gene set enrichment analysis on matched primary and recurrent patient-derived xenograft (PDX) samples from an infant with ATRT. The expressions of proteasome-encoding genes were compared among this paired model as well as between the 24 human ATRT samples and normal brain tissues. The antitumor effect of BTZ was evaluated in three human Myc-ATRT cell lines (PDX-derived tumor cell line Re1-P6, BT-12, and CHLA-266) and in the orthotopic xenograft models of Re1-P6 cell. RESULTS Concomitant upregulation of the Myc pathway, protein synthesis, and proteasome degradation were identified in recurrent ATRTs. In ATRTs, the proteasome-encoding genes were highly expressed compared with in normal brain tissues, correlated with the malignancy of tumor cells, and were essential for tumor cell survival. BTZ inhibited proliferation and induced apoptosis through the accumulation of p53 in in vitro drug tests. Furthermore, BTZ inhibited tumor growth and prolonged survival in Myc-ATRT orthotopic xenograft mice. CONCLUSIONS Our findings suggest that BTZ may be a promising targeted therapy for Myc-ATRTs.
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Affiliation(s)
- Minh-Huy Tran
- International Master/Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Neurosurgery, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Kuo-Sheng Wu
- Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Che-Chang Chang
- The Ph,D, Program for Translational Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tai-Tong Wong
- Department of Neurosurgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Pediatric Brain Tumor Program, Taipei Cancer Center, Taipei Medical University, Taipei, Taiwan
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14
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Cheng TM, Li R, Kao YCJ, Hsu CH, Chu HL, Lu KY, Changou CA, Chang CC, Chang LH, Tsai ML, Mi FL. Synthesis and characterization of Gd-DTPA/fucoidan/peptide complex nanoparticle and in vitro magnetic resonance imaging of inflamed endothelial cells. Materials Science and Engineering: C 2020; 114:111064. [DOI: 10.1016/j.msec.2020.111064] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/25/2020] [Accepted: 05/05/2020] [Indexed: 01/10/2023]
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15
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Chen YC, Chang CC, Hsu WL, Chuang ST. Dairy cattle with bovine leukaemia virus RNA show significantly increased leukocyte counts. Vet J 2020; 257:105449. [PMID: 32546356 DOI: 10.1016/j.tvjl.2020.105449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 03/25/2020] [Accepted: 12/31/2019] [Indexed: 12/26/2022]
Abstract
Infection with bovine leukaemia virus (BLV), a retrovirus, causes dysfunction of the immune system and can have a marked economic impact on dairy industries due to decreased milk production and reduced lifespan in affected dairy cattle. The presence of proviral DNA has been the major diagnostic indicator of BLV infection. However in the course of BLV infection, the viral genome can be dormant, without detectable gene expression, resulting in limited impact on infected animals. At present, there is limited knowledge regarding haematological indices in dairy cattle that could indicate activation of the BLV genome and suggest reactivated BLV infection. In this study, BLV infection and BLV genome reactivation were evaluated based on the presence of BLV DNA and BLV env gene transcripts, respectively. BLV RNA transcription was confirmed. Among 93 whole blood samples obtained from asymptomatic dairy cattle, the prevalence of BLV proviral DNA and transcripts was 93.5% (n = 87/93) and 83.9% (n = 78/93), respectively. Between groups with and without BLV, the mean counts of white blood cells and lymphocytes in whole blood were significantly associated with the presence of BLV RNA (P < 0.05), but not with BLV proviral DNA. These results shed light on the activation status of the BLV genome and should be taken into account when evaluating the possible impact of BLV on cattle.
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Affiliation(s)
- Y C Chen
- Graduate Institute of Veterinary Pathobiology, College of Veterinary Medicine, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan
| | - C C Chang
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan
| | - W L Hsu
- Graduate Institute of Microbiology and Public Health, College of Veterinary Medicine, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan.
| | - S T Chuang
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung 402, Taiwan.
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16
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Lu YT, Widhianto BYB, Hsu SH, Chang CC. Tandem Mach Zehnder Directional Coupler Design and Simulation on Silicon Platform for Optical Coherence Tomography Applications. Sensors (Basel) 2020; 20:s20041054. [PMID: 32075261 PMCID: PMC7070696 DOI: 10.3390/s20041054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 06/10/2023]
Abstract
We design and compare the splitting ratio wavelength flatness of directional coupler (DC), Mach-Zehnder directional coupler (MZDC), and tandem MZDC. All coupler responses are analyzed, and tandem MZDC performance is the best in the wavelength insensitivity compared with the other two. An MZDC with any coupling ratio could be utilized to match the maximum flatness in a 40-nm wavelength range. To extend a broad flatness range, the tandem MZDC is proposed and still follows the Mach Zehnder structure taking two MZDCs as couplers connected through a decoupled region. Unlike DC, MZDC with the flat wavelength response has a non-linear output phase. Hence, using two wavelength-insensitive MZDCs as the coupling function in a tandem MZDC could demonstrate a more extensive decoupled phase term to maximize the flat wavelength response. The tandem MZDC theoretically demonstrates the splitting ratio with 100-nm flatness in the wavelength range from 1250 nm to 1350 nm. Finally, a point spread function through the tandem MZDC shows a 24-dB signal-to-noise ratio improvement in optical coherence tomography applications.
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Affiliation(s)
- Yi-Ting Lu
- Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (Y.-T.L.); (B.Y.B.W.)
| | | | - Shih-Hsiang Hsu
- Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan; (Y.-T.L.); (B.Y.B.W.)
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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17
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Ma SB, Griffin D, Boyd SC, Chang CC, Wong J, Guy SD. Cryptococcus neoformans var grubii meningoencephalitis in a patient on fingolimod for relapsing-remitting multiple sclerosis: Case report and review of published cases. Mult Scler Relat Disord 2020; 39:101923. [PMID: 31986367 DOI: 10.1016/j.msard.2019.101923] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/27/2019] [Accepted: 12/31/2019] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Fingolimod, a sphingosine-1-phosphate modulator used in the treatment of relapsing-remitting multiple sclerosis, has been associated with several cases of cryptococcosis. CASE REPORT We present a case of Cryptococcal meningoencephalitis attributable to Cryptococcus neoformans var. grubii, in a 58-year-old bird-keeper from Australia, after 7 years of fingolimod therapy. We discuss this in the context of previously reported cases, our understanding of fingolimod immune modulation, and known Cryptococcus pathobiology. CONCLUSION We suggest consideration of harm minimisation behaviours in patients requiring fingolimod, particularly in those with profound CD4 lymphopenia. Furthermore, we echo the call for improved post-marketing surveillance systems to determine the epidemiology of atypical infections with novel immunomodulatory treatments.
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Affiliation(s)
- S B Ma
- Western Health, Melbourne, Victoria, Australia.
| | - Dwj Griffin
- Western Health, Melbourne, Victoria, Australia; Alfred Health, Melbourne, Victoria, Australia
| | - S C Boyd
- Western Health, Melbourne, Victoria, Australia
| | - C C Chang
- Alfred Health, Melbourne, Victoria, Australia
| | - Jsj Wong
- Dorevitch Pathology, Heidelberg, Victoria, Australia
| | - S D Guy
- Western Health, Melbourne, Victoria, Australia
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18
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Li WB, Huber GM, Blok HP, Gaskell D, Horn T, Semenov-Tian-Shansky K, Pire B, Szymanowski L, Laget JM, Aniol K, Arrington J, Beise EJ, Boeglin W, Brash EJ, Breuer H, Chang CC, Christy ME, Ent R, Gibson EF, Holt RJ, Jin S, Jones MK, Keppel CE, Kim W, King PM, Kovaltchouk V, Liu J, Lolos GJ, Mack DJ, Margaziotis DJ, Markowitz P, Matsumura A, Meekins D, Miyoshi T, Mkrtchyan H, Niculescu I, Okayasu Y, Pentchev L, Perdrisat C, Potterveld D, Punjabi V, Reimer PE, Reinhold J, Roche J, Roos PG, Sarty A, Smith GR, Tadevosyan V, Tang LG, Tvaskis V, Volmer J, Vulcan W, Warren G, Wood SA, Xu C, Zheng X. Unique Access to u-Channel Physics: Exclusive Backward-Angle Omega Meson Electroproduction. Phys Rev Lett 2019; 123:182501. [PMID: 31763910 DOI: 10.1103/physrevlett.123.182501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/01/2019] [Indexed: 06/10/2023]
Abstract
Backward-angle meson electroproduction above the resonance region, which was previously ignored, is anticipated to offer unique access to the three quark plus sea component of the nucleon wave function. In this Letter, we present the first complete separation of the four electromagnetic structure functions above the resonance region in exclusive ω electroproduction off the proton, ep→e^{'}pω, at central Q^{2} values of 1.60, 2.45 GeV^{2}, at W=2.21 GeV. The results of our pioneering -u≈-u_{min} study demonstrate the existence of a unanticipated backward-angle cross section peak and the feasibility of full L/T/LT/TT separations in this never explored kinematic territory. At Q^{2}=2.45 GeV^{2}, the observed dominance of σ_{T} over σ_{L}, is qualitatively consistent with the collinear QCD description in the near-backward regime, in which the scattering amplitude factorizes into a hard subprocess amplitude and baryon to meson transition distribution amplitudes: universal nonperturbative objects only accessible through backward-angle kinematics.
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Affiliation(s)
- W B Li
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H P Blok
- VU University, NL-1081 HV Amsterdam, Netherlands
- NIKHEF, Postbus 41882, NL-1009 DB Amsterdam, Netherlands
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Horn
- Catholic University of America, Washington, D.C. 20064, USA
| | - K Semenov-Tian-Shansky
- National Research Centre Kurchatov Institute: Petersburg Nuclear Physics Institute, RU-188300 Gatchina, Russia
- Saint Petersburg National Research Academic University of the Russian Academy of Sciences, RU-194021 St. Petersburg, Russia
| | - B Pire
- CPHT, CNRS, École Polytechnique, IP Paris, 91128-Palaiseau, France
| | - L Szymanowski
- National Centre for Nuclear Research (NCBJ), 02-093 Warsaw, Poland
| | - J-M Laget
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Aniol
- California State University Los Angeles, Los Angeles, California 90032, USA
| | - J Arrington
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - E J Beise
- University of Maryland, College Park, Maryland 20742, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33119, USA
| | - E J Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - H Breuer
- University of Maryland, College Park, Maryland 20742, USA
| | - C C Chang
- University of Maryland, College Park, Maryland 20742, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23668, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E F Gibson
- California State University, Sacramento, California 95819, USA
| | - R J Holt
- Caltech, Pasadena, California 91125, USA
| | - S Jin
- Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C E Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Hampton University, Hampton, Virginia 23668, USA
| | - W Kim
- Kyungpook National University, Daegu, 702-701, Republic of Korea
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - V Kovaltchouk
- Ontario Tech University, Oshawa, Ontario L1G 0C5, Canada
| | - J Liu
- Shanghai Jiao Tong University, Shanghai 200240, China
| | - G J Lolos
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - D J Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D J Margaziotis
- California State University Los Angeles, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33119, USA
| | - A Matsumura
- Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Miyoshi
- Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - H Mkrtchyan
- A.I. Alikhanyan National Science Laboratory, Yerevan 0036, Armenia
| | - I Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - Y Okayasu
- Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - L Pentchev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Perdrisat
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - D Potterveld
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Reinhold
- Florida International University, Miami, Florida 33119, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - P G Roos
- University of Maryland, College Park, Maryland 20742, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Tadevosyan
- A.I. Alikhanyan National Science Laboratory, Yerevan 0036, Armenia
| | - L G Tang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Hampton University, Hampton, Virginia 23668, USA
| | - V Tvaskis
- NIKHEF, Postbus 41882, NL-1009 DB Amsterdam, Netherlands
- VU University, NL-1081 HV Amsterdam, Netherlands
| | - J Volmer
- VU University, NL-1081 HV Amsterdam, Netherlands
- DESY, Hamburg 22607, Germany
| | - W Vulcan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G Warren
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Xu
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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19
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Cheng CF, Ku HC, Cheng JJ, Chao SW, Li HF, Lai PF, Chang CC, Don MJ, Chen HH, Lin H. Adipocyte browning and resistance to obesity in mice is induced by expression of ATF3. Commun Biol 2019; 2:389. [PMID: 31667363 PMCID: PMC6813364 DOI: 10.1038/s42003-019-0624-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 09/13/2019] [Indexed: 02/07/2023] Open
Abstract
Billions of people have obesity-related metabolic syndromes such as diabetes and hyperlipidemia. Promoting the browning of white adipose tissue has been suggested as a potential strategy, but a drug still needs to be identified. Here, genetic deletion of activating transcription factor 3 (ATF3-/- ) in mice under a high-fat diet (HFD) resulted in obesity and insulin resistance, which was abrogated by virus-mediated ATF3 restoration. ST32da, a synthetic ATF3 inducer isolated from Salvia miltiorrhiza, promoted ATF3 expression to downregulate adipokine genes and induce adipocyte browning by suppressing the carbohydrate-responsive element-binding protein-stearoyl-CoA desaturase-1 axis. Furthermore, ST32da increased white adipose tissue browning and reduced lipogenesis in HFD-induced obese mice. The anti-obesity efficacy of oral ST32da administration was similar to that of the clinical drug orlistat. Our study identified the ATF3 inducer ST32da as a promising therapeutic drug for treating diet-induced obesity and related metabolic disorders.
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MESH Headings
- 3T3-L1 Cells
- Activating Transcription Factor 3/deficiency
- Activating Transcription Factor 3/genetics
- Activating Transcription Factor 3/metabolism
- Adipocytes, Brown/metabolism
- Adipocytes, Brown/pathology
- Adipose Tissue, Brown/metabolism
- Adipose Tissue, Brown/pathology
- Adipose Tissue, White/metabolism
- Adipose Tissue, White/pathology
- Animals
- Anti-Obesity Agents/pharmacology
- Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/metabolism
- Body Temperature Regulation/physiology
- Diet, High-Fat/adverse effects
- Disease Models, Animal
- Humans
- Insulin Resistance
- Lipogenesis/drug effects
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Obesity/genetics
- Obesity/metabolism
- Obesity/prevention & control
- Orlistat/pharmacology
- Plant Extracts/pharmacology
- Plants, Medicinal/chemistry
- Salvia miltiorrhiza/chemistry
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Affiliation(s)
- Ching-Feng Cheng
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Department of Pediatrics, Tzu Chi University, Hualien, Taiwan
| | - Hui-Chen Ku
- Department of Pediatrics, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taipei, Taiwan
- Ph.D. Program in Biotechnology Research and Development, Taipei Medical University, Taipei, Taiwan
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jing-Jy Cheng
- Ph.D. Program in Clinical Drug Discovery from Botanical Herbs, Taipei Medical, University, Taipei, Taiwan
- National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Shi-Wei Chao
- Ph.D. Program in Biotechnology Research and Development, Taipei Medical University, Taipei, Taiwan
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsiao-Fen Li
- Ph.D. Program in Biotechnology Research and Development, Taipei Medical University, Taipei, Taiwan
| | - Pei-Fang Lai
- Department of Emergency Medicine, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Che-Chang Chang
- Ph.D. Program in Biotechnology Research and Development, Taipei Medical University, Taipei, Taiwan
| | - Ming-Jaw Don
- National Research Institute of Chinese Medicine, Taipei, Taiwan
| | - Hsi-Hsien Chen
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Heng Lin
- Ph.D. Program in Biotechnology Research and Development, Taipei Medical University, Taipei, Taiwan
- Department of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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20
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Serruys PW, Takahashi K, Kogame N, Chichareon P, Modolo R, Chang CC, Tomaniak M, Komiyama H, Hamm C, Steg PG, Stoll HP, Onuma Y, Valgimigli M, Windecker S, Vranckx P. P2817Efficacy and safety of ticagrelor monotherapy in patients with complex percutaneous coronary intervention: insights from the Global Leaders trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1129] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background/Introduction
Optimal dual antiplatelet therapy (DAPT) in patients with complex percutaneous coronary intervention (PCI) with drug-eluting stents (DES) has not been fully investigated.
Purpose
To evaluate the efficacy and safety of 1-month DAPT followed by 23-month ticagrelor monotherapy in patients who underwent complex PCI.
Methods
The Global Leaders trial recruited 15,991 patients treated by default with a biolimus A9-eluting stent, and randomised in a 1:1 ratio either to the experimental strategy (1-month dual antiplatelet therapy [DAPT] followed by 23-month ticagrelor monotherapy) or to the reference regimen (12-month DAPT followed by 12-month aspirin monotherapy). Complex PCI includes at least one of the following characteristics; left main and/or multivessel PCI, long stenting (defined as total stent length≥46mm), and bifurcation treatment with two stents. The present sub-analysis of the trial evaluated at two years the primary endpoint (composite of all-cause death and new Q-wave myocardial infarction [MI] centrally adjudicated with the Minnesota code). In addition, the patient-oriented composite endpoint (POCE) (composite of all-cause death, any stroke, any MI, and any revascularization) and the net adverse clinical events (NACE) (composite of POCE and Bleeding Academic Research Consortium [BARC] type 3 or 5 bleeding) were also evaluated at two years.
Results
Of 15,450 patients included in the present analysis, 5,188 (26.7%) patients underwent complex PCI. The experimental strategy, when compared with the reference one, had a significantly lower risk of the primary endpoint (3.56% vs. 5.33%, HR: 0.66; 95% CI: 0.51–0.86; p-value= 0.002; p-value for interaction= 0.019) in patients with complex PCI. Similarly, the experimental treatment was associated with a significantly reduced risk of POCE (14.41% vs. 16.88%, HR: 0.84; 95% CI: 0.74–0.97; p=0.016, p-value for interaction= 0.099) and NACE (15.77% vs. 18.37%, HR: 0.85; 95% CI: 0.74–0.97; p=0.014; p-value for interaction= 0.096). The reduction in ischemic events was predominantly observed in patients with 2 or more characteristics of complex PCI (Figure). In contrast, there was no significant difference in the risk of BARC type 3 or 5 bleeding between the two regimens (2.40% vs. 2.38%, HR: 1.01; 95% CI: 0.71–1.44; p-value=0.956; p-value for interaction= 0.935).
Central illustration
Conclusion
Together with other well-established clinical risk factors, the extent and complexity of stenting should be taken into account in tailoring antiplatelet regimens for secondary prevention. The 1-month DAPT followed by 23-month ticagrelor monotherapy reduced the ischemic events without increasing the risk of bleeding in patients who underwent complex PCI, when compared with the conventional DAPT.
Acknowledgement/Funding
The Global Leaders trial was supported by the resource from AstraZeneca, Biosensors, and The Medicines Company.
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Affiliation(s)
- P W Serruys
- Imperial College London, London, United Kingdom
| | - K Takahashi
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - N Kogame
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - P Chichareon
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - R Modolo
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - C C Chang
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - M Tomaniak
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - H Komiyama
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - C Hamm
- Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany
| | - P G Steg
- University Paris Diderot, Paris, France
| | - H P Stoll
- Biosensors Clinical Research, Morges, Switzerland
| | - Y Onuma
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - M Valgimigli
- Preventive Cardiology & Sports Medicine, Inselspital Bern, Bern, Switzerland
| | - S Windecker
- Preventive Cardiology & Sports Medicine, Inselspital Bern, Bern, Switzerland
| | - P Vranckx
- Heart Centre Hasselt, Hasselt, Belgium
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21
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Van Geuns RJ, Smits PC, Chang CC, Wlodarczyk A, Chevalier B, West N, Gori T, Barbato E, Tarantini G, Kocka V, Achenbach S, Dudek D, Escaned J, Tijssen J, Onuma Y. P2695ABSORB bioresorbable scaffold versus Xience metallic stent in acute coronary syndromes with treated with percutaneous coronary intervention. A subanalysis of the COMPARE-ABSORB trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1012] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The safety and efficacy of the ABSORB scaffold in ACS patients remain unclear. The COMPARE-ABSORB trial compares the ABSORB to the Xience stent in lesions and patients at high risk for restenosis Patients with STEMI and urgent PCI for non-STEMI were not excluded.
Methods
Patients included in the COMPARE-ABSORB trial undergoing PCI for ACS were eligible. Predefined implantation techniques for ABSORB was mandatory. Primary endpoint is target lesion failure (TLF) at 1 year, defined as a composite of cardiac death, target vessel myocardial infarction and clinically indicated target lesion revascularization.
Results
Of 1670 patients, 842 were treated for ACS. At 1-year, TLF occurred in 22 patients (5.0%) of the ABSORB group and in 14 patients (3.5%) of the Xience group (HR 1.44%; 95% CI 0.74%-2.82%, P=0.284). Definite device thrombosis occurred in 9 patients (2.0%) of the ABSORB group and in 2 patients (0.5%) of the Xience group (HR 4.10%; 95% CI 0.89%-18.9%, P=0.071).
Baseline characteristics ABSORB (n=442) XIENCE (n=400) Age, years (SD) 60.7 (9.6) 61.3 (9.1) Male 350/442 (79.2%) 313/400 (78.3%) Current smoker 159/439 (36.2%) 126/397 (31.7%) Diabetes mellitus 152/440 (34.5%) 138/399 (34.6%) Hypertension 298/442 (67.4%) 266/400 (66.5%) Hypercholesterolemia 255/442 (57.7%) 232/400 (58.0%) Family history of coronary artery disease 147/442 (33.3%) 103/400 (25.8%) Previous MI 61/442 (13.8%) 67/400 (16.8%) Established Peripheral Vascular Disease 27/442 (6.1%) 15/400 (3.8%) Previous PCI 83/442 (18.8%) 86/400 (21.5%) Previous CABG 1/442 (0.2%) 4/400 (1.0%) Previous stroke 15/442 (3.4%) 21/400 (5.3%) Renal Insufficiency 9/442 (2.0%) 13/400 (3.3%) Clinical presentation Unstable angina 149/442 (33.7%) 141/400 (35.3%) Non-ST elevation myocardial infarction 183/442 (41.4%) 156/400 (39.0%) ST elevation myocardial infarction 110/442 (24.9%) 103/400 (25.7%)
KM plot for target lesion failure
Conclusion
The COMPARE-ABSORB trial showed no difference in the primary endpoint at one year for the ACS subgroup. The signal for increased thrombosis remained, even with the optimized implantation protocol
Acknowledgement/Funding
Maasstad Hospital, Rotterdam, the Netherlands
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Affiliation(s)
- R J Van Geuns
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - P C Smits
- Maasstad Hospital, Cardiology department, Rotterdam, Netherlands (The)
| | - C C Chang
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - A Wlodarczyk
- Miedziowe Centrum Zdrowia, Department of Cardiology, Lubin, Poland
| | - B Chevalier
- Cardiovascular Institute Paris-Sud (ICPS), Massy, France
| | - N West
- Royal Papworth Hospital NHS Foundation Trust, Cambridge, United Kingdom
| | - T Gori
- Johannes Gutenberg University Mainz (JGU), Mainz, Germany
| | - E Barbato
- Cardiovascular Center Aalst, Aalst, Belgium
| | | | - V Kocka
- Charles University of Prague, Prague, Czechia
| | - S Achenbach
- Friedrich Alexander University, Erlangen, Germany
| | - D Dudek
- Jagiellonian University Medical College, 2nd Department of Cardiology, Krakow, Poland
| | - J Escaned
- Hospital Clinic San Carlos, Madrid, Spain
| | - J Tijssen
- Academic Medical Center of Amsterdam, Amsterdam, Netherlands (The)
| | - Y Onuma
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
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22
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Takahashi K, Chichareon P, Modolo R, Kogame N, Chang CC, Tomaniak M, Hamm C, Steg PG, Stoll HP, Onuma Y, Valgimigli M, Vranckx P, Windecker S, Serruys PW. P2811Impact of ticagrelor monotherapy on two-year clinical outcomes in patients with long stenting: insights from the Global Leaders trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1123] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
Data on the efficacy and safety of different antiplatelet regimens are limited in patients with increasing total stent length (TSL).
Purpose
To evaluate the impact of the experimental strategy (1-month dual antiplatelet therapy [DAPT] followed by 23-month ticagrelor monotherapy) vs. the reference regimen (12-month DAPT followed by 12-month aspirin monotherapy) in patients with increasing TSL.
Methods
The present post-hoc analysis of the Global Leaders trial evaluated the primary endpoint (the composite of the all-cause death and new Q-wave myocardial infarction [MI]) at two years in patients with increasing TSL. In addition, the patient-oriented composite endpoint (POCE) (the composite of all-cause death, any stroke, any MI, and any revascularization) and the net adverse clinical events (NACE) (the composite of POCE and Bleeding Academic Research Consortium [BARC] type 3 or 5 bleeding) were also assessed.
Results
The cohort of 15,450 patients treated with a biolimus-eluting biodegradable polymer stents were included in this analysis. In the longer TSL group (≥46mm), the experimental strategy significantly reduced the risk of the primary endpoint (3.78% vs. 5.68%, hazard ratio (HR): 0.67, 95% confidence interval (CI): 0.49–0.90, p=0.008, P interaction=0.042) as well as POCE (14.57% vs. 18.11%, HR: 0.79, 95% CI: 0.67–0.92, p=0.003, P interaction=0.010) and NACE (16.07% vs. 19.64%, HR: 0.80, 95% CI: 0.69–0.93, p=0.004, P interaction=0.012) at two years. The risk of BARC type 3 or 5 bleeding at two years was similar between the two antiplatelet regimens.
KM in patients with long stenting
Conclusion
Ticagrelor monotherapy significantly reduced the risk of the primary endpoint, POCE and NACE with a similar risk of BARC type 3 or 5 bleeding at two years in patients with the longer TSL.
Acknowledgement/Funding
The Global Leaders trial was supported by unrestricted grants from AstraZeneca, Biosensors, and The Medicines Company. ECRI (European Cardiovascular R
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Affiliation(s)
- K Takahashi
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - P Chichareon
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - R Modolo
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - N Kogame
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - C C Chang
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - M Tomaniak
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - C Hamm
- Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany
| | - P G Steg
- University Paris Diderot, Paris, France
| | - H P Stoll
- Biosensors Clinical Research, Morges, Switzerland
| | - Y Onuma
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - M Valgimigli
- Preventive Cardiology & Sports Medicine, Inselspital Bern, Bern, Switzerland
| | - P Vranckx
- Heart Centre Hasselt, Hasselt, Belgium
| | - S Windecker
- Preventive Cardiology & Sports Medicine, Inselspital Bern, Bern, Switzerland
| | - P W Serruys
- Imperial College London, London, United Kingdom
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23
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Takahashi K, Chichareon P, Chang CC, Tomaniak M, Modolo R, Kogame N, Stoll HP, Hamm C, Steg PG, Onuma Y, Valgimigli M, Vranckx P, Windecker S, Carrie D, Serruys PW. P2812Ischemic efficacy and bleeding safety of ticagrelor monotherapy in patients with multivessel percutaneous coronary intervention: insights from the Global Leaders trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1124] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Introduction
The optimal duration of DAPT after coronary stent implantation remains a matter of debate and a novel antiplatelet regimen without an increased risk of bleeding while maintaining an anti-ischemic efficacy is of paramount importance in patients at higher risk of ischemia.
Purpose
The aim of the present sub-study of the Global Leaders trial is to evaluate the efficacy and safety of the experimental antiplatelet strategy (1-month dual antiplatelet therapy [DAPT] followed by 23-month ticagrelor monotherapy) vs. the reference regimen (12-month DAPT followed by 12-month aspirin monotherapy) in patients with multivessel percutaneous coronary intervention (PCI).
Methods
The Global Leaders trial enrolled 15,991 patients treated by default with a biolimus A-9 eluting stent. The present sub-study of the trial sought to evaluate the impact of the long-term ticagrelor monotherapy on the primary endpoint (composite of all-cause death and new Q-wave myocardial infarction [MI] centrally adjudicated with the Minnesota code) at two years. In addition, the patient-oriented composite endpoint (POCE) (composite of all-cause death, any stroke, any MI, and any revascularization) and the net adverse clinical events (NACE) (composite of POCE and Bleeding Academic Research Consortium [BARC] type 3 or 5 bleeding) were also evaluated at two years.
Results
A total of 15,845 patients was included in this analysis, of whom 3,576 patients received multivessel PCI. At two years, the experimental strategy significantly reduced a risk of the primary endpoint (the composite of all-cause death and new Q-wave myocardial infarction [MI]) (3.05% vs. 4.85%, HR: 0.62, 95% CI: 0.44–0.88, p=0.006, Pinteraction=0.031) in patients with multivessel PCI. Similarly, the experimental treatment had a significant risk reduction in the patient-oriented composite endpoint (POCE), defined as the composite of all-cause death, any stroke, any MI, and any revascularization (13.37% vs. 16.74%, HR: 0.78, 95% CI: 0.66–0.93, p=0.005, Pinteraction=0.020) and the net adverse clinical events (NACE), defined as the composite of POCE and Bleeding Academic Research Consortium [BARC] defined bleeding type 3 or 5 (14.65% vs. 18.38%, HR: 0.78, 95% CI: 0.66–0.92, p=0.003, Pinteraction=0.014) at two years. There was no significant difference in BARC type 3 or 5 bleeding (2.44% vs. 2.65%, HR: 0.92, 95% CI: 0.61–1.39, p=0.685, Pinteraction=0.754) at two years between the two regimens.
KM in patients with multivessel PCI
Conclusion
The present study has demonstrated the experimental antiplatelet strategy, when compared with the reference regimen, could potentially have a favourable balance between ischemic efficacy and bleeding safety in patients who underwent multivessel PCI.
Acknowledgement/Funding
The Global Leaders trial was supported by unrestricted grants from AstraZeneca, Biosensors, and The Medicines Company. ECRI (European Cardiovascular R
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Affiliation(s)
- K Takahashi
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - P Chichareon
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - C C Chang
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - M Tomaniak
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - R Modolo
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - N Kogame
- University of Amsterdam, Amsterdam, Netherlands (The)
| | - H P Stoll
- Biosensors Clinical Research, Morges, Switzerland
| | - C Hamm
- Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany
| | - P G Steg
- University Paris Diderot, Paris, France
| | - Y Onuma
- Erasmus Medical Centre, Rotterdam, Netherlands (The)
| | - M Valgimigli
- Preventive Cardiology & Sports Medicine, Inselspital Bern, Bern, Switzerland
| | - P Vranckx
- Heart Centre Hasselt, Hasselt, Belgium
| | - S Windecker
- Preventive Cardiology & Sports Medicine, Inselspital Bern, Bern, Switzerland
| | - D Carrie
- Toulouse Rangueil University Hospital (CHU), Toulouse, France
| | - P W Serruys
- Imperial College London, London, United Kingdom
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24
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Chu CY, Cho YT, Jiang JH, Chang CC, Liao SC, Tang CH. Patients with chronic urticaria have a higher risk of psychiatric disorders: a population-based study. Br J Dermatol 2019; 182:335-341. [PMID: 31220338 DOI: 10.1111/bjd.18240] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND The prevalence of psychiatric comorbidities in patients with chronic urticaria (CU) in a national population is largely unknown. OBJECTIVES To investigate the prevalence of psychiatric disorders and psychiatric medication use in patients with CU in Taiwan. METHODS Data were sourced from Taiwan's National Health Insurance Research Database for 2011. Patients who had a primary/secondary International Classification of Diseases, Ninth Revision, Clinical Modification diagnosis code of 708·1, 708·8 or 708·9 during 2011 with at least two outpatient visits and an antihistamine prescription were identified as CU cases. Patients with CU were classified into three disease severity groups according to their medication types. Psychiatric disorders were identified by patients having three outpatient visits with a primary or secondary diagnosis of a given psychiatric disease. Psychiatric medication use was defined by having at least four outpatient visits with prescriptions for anxiolytics, antidepressants or sleeping pills in 2010 or 2011. RESULTS Of the 167 132 patients with CU, 82·5% had mild CU, 17·0% had moderate CU and 0·4% had severe CU. Patients with CU had a higher prevalence of psychiatric disorders and psychiatric medication prescription than control groups. The relative risk (RR) of psychiatric disorders was 1·43 for patients with mild, 1·50 for patients with moderate and 2·32 for patients with severe CU vs. the controls (P < 0·001). For psychiatric medication prescription, the RRs were 1·95, 2·70 and 2·09, respectively, vs. controls (P < 0·001). CONCLUSIONS Patients with CU had a higher prevalence and risk of psychiatric disorders and psychiatric medication prescription than control groups. What's already known about this topic? Previous studies have shown a high prevalence of psychiatric comorbidities in patients with chronic urticaria (CU), with rates ranging from 35% to 60%. Anxiety, depression and somatoform disorders have been reported as the most prevalent mental disorders in patients with CU. What does this study add? Patients with CU had a higher prevalence of psychiatric disorders and psychiatric medication use than control groups in the general population. The relative risk (RR) of psychiatric disorders was 1·43 for those with mild CU, 1·50 for those with moderate CU and 2·32 for those with severe CU vs. controls. The RR for psychiatric medication use was 1·95 for those with mild CU, 2·70 for those with moderate CU and 2·09 for those with severe CU vs. controls. Mental health evaluations and management are important elements in CU management.
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Affiliation(s)
- C Y Chu
- Departments of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, 7 Chung-Shan South Road, Taipei, 10002, Taiwan
| | - Y T Cho
- Departments of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, 7 Chung-Shan South Road, Taipei, 10002, Taiwan
| | - J H Jiang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
| | - C C Chang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
| | - S C Liao
- Departments of Psychiatry, National Taiwan University Hospital and National Taiwan University College of Medicine, 7 Chung-Shan South Road, Taipei, 10002, Taiwan
| | - C H Tang
- School of Health Care Administration, Taipei Medical University, Taipei, Taiwan
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25
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Goh SW, Adawiyah J, Md Nor N, Yap F, Ch'ng P, Chang CC. Skin eruption induced by dieting - an underdiagnosed skin disease in Malaysia. Malays Fam Physician 2019; 14:42-46. [PMID: 31289632 PMCID: PMC6612274] [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] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Prurigo pigmentosa is an inflammatory dermatosis characterized by a pruritic, symmetrically distributed erythematous papular or papulo-vesicular eruption on the trunk arranged in a reticulated pattern that resolves with hyperpigmentation. It is typically non-responsive to topical or systemic steroid therapy. The exact etiology is unknown, but it is more commonly described in the Far East countries. Dietary change is one of the predisposing factors. We report on nine young adult patients with prurigo pigmentosa, among whom five were on ketogenic diets prior to the onset of the eruptions. All cases resolved with oral doxycycline with no recurrence. We hope to improve the awareness of this uncommon skin condition among general practitioners and physicians so that disfiguring hyperpigmentation due to delayed diagnosis and treatment can be avoided.
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Affiliation(s)
- S W Goh
- MB BCh (Soton), MRCP (UK) Medical Department, University Kebangsaan Malaysia Medical Centre, Kuala Lumpur Malaysia.,
| | - J Adawiyah
- MB BCh BAO, MMed (UKM) AdvMDerm (UKM), University Kebangsaan Malaysia Medical Centre, Kuala Lumpur Malaysia.,
| | - N Md Nor
- MBBCH (Cardiff), MRCP (UK), AdvMDerm (UKM), Medical Department, University Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia.
| | - Fbb Yap
- MD (UNIMAS), MRCP (UK), AdvMDerm (UKM), Universiti Tunku Abdul Rahman, Selangor, Malaysia,
| | - Pwb Ch'ng
- MD (UKM), MRCP (UK), AdvMDerm (UKM), Gleneagles Kuala Lumpur Kuala Lumpur, Malaysia,
| | - C C Chang
- MBBS (Malaya), MRCP (UK), AdvMDerm (UKM), Gleneagles Kuala Lumpur, Kuala Lumpur, Malaysia
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26
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Hu LY, Chang CC, Huang YS, Chou WC, Lin YM, Ho CC, Chen WT, Shih HM, Hsiung CN, Wu PE, Shen CY. SUMOylation of XRCC1 activated by poly (ADP-ribosyl)ation regulates DNA repair. Hum Mol Genet 2019; 27:2306-2317. [PMID: 29668892 DOI: 10.1093/hmg/ddy135] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 04/09/2018] [Indexed: 11/13/2022] Open
Abstract
XRCC1 is an essential scaffold protein for base excision repair (BER) and helps to maintain genomic stability. XRCC1 has been indicated as a substrate for small ubiquitin-like modifier modification (SUMOylation); however, how XRCC1 SUMOylation is regulated in cells and how SUMOylated XRCC1 regulates BER activity are not well understood. Here, we show that SUMOylation of XRCC1 is regulated in cells under methyl-methanesulfonate (MMS) treatment and facilitates BER. Poly(ADP-ribose) polymerase 1 (PARP1) is activated by MMS immediately and synthesizes poly(ADP-ribose) (PAR), which in turn promotes recruitment of SUMO E3 TOPORS to XRCC1 and facilitates XRCC1 SUMOylation. A SUMOylation-defective mutant of XRCC1 had lower binding activity for DNA polymerase beta (POLB) and was linked to a lower capacity for repair of MMS-induced DNA damages. Our study therefore identified a pathway in which DNA damage-induced poly(ADP-ribosyl)ation (PARylation) promotes SUMOylation of XRCC1, which leads to more efficient recruitment of POLB to complete BER.
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Affiliation(s)
- Ling-Yueh Hu
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Yen-Sung Huang
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Cheng Chou
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Ying-Mei Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Chun-Chen Ho
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Wei-Ting Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 110, Taiwan
| | - Chia-Ni Hsiung
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Pei-Ei Wu
- Taiwan Biobank, Academia Sinica, Taipei 110, Taiwan
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan.,College of Public Health, China Medical University, Taichung 404, Taiwan
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27
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Nicholson A, Berkowitz E, Monge-Camacho H, Brantley D, Garron N, Chang CC, Rinaldi E, Clark MA, Joó B, Kurth T, Tiburzi BC, Vranas P, Walker-Loud A. Heavy Physics Contributions to Neutrinoless Double Beta Decay from QCD. Phys Rev Lett 2018; 121:172501. [PMID: 30411940 DOI: 10.1103/physrevlett.121.172501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Indexed: 06/08/2023]
Abstract
Observation of neutrinoless double beta decay, a lepton number violating process that has been proposed to clarify the nature of neutrino masses, has spawned an enormous world-wide experimental effort. Relating nuclear decay rates to high-energy, beyond the standard model (BSM) physics requires detailed knowledge of nonperturbative QCD effects. Using lattice QCD, we compute the necessary matrix elements of short-range operators, which arise due to heavy BSM mediators, that contribute to this decay via the leading order π^{-}→π^{+} exchange diagrams. Utilizing our result and taking advantage of effective field theory methods will allow for model-independent calculations of the relevant two-nucleon decay, which may then be used as input for nuclear many-body calculations of the relevant experimental decays. Contributions from short-range operators may prove to be equally important to, or even more important than, those from long-range Majorana neutrino exchange.
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Affiliation(s)
- A Nicholson
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27516-3255, USA
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - E Berkowitz
- Institut für Kernphysik and Institute for Advanced Simulation, Forschungszentrum Jülich, 54245 Jülich, Germany
| | - H Monge-Camacho
- Department of Physics, The College of William & Mary, Williamsburg, Virginia 23187, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D Brantley
- Department of Physics, The College of William & Mary, Williamsburg, Virginia 23187, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - N Garron
- Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - C C Chang
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS), RIKEN 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - E Rinaldi
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - M A Clark
- NVIDIA Corporation, 2701 San Tomas Expressway, Santa Clara, California 95050, USA
| | - B Joó
- Scientific Computing Group, Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Kurth
- NERSC Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - B C Tiburzi
- Department of Physics, The City College of New York, New York, New York 10031, USA
- Graduate School and University Center, The City University of New York, New York, New York 10016, USA
| | - P Vranas
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - A Walker-Loud
- Department of Physics, University of California, Berkeley, California 94720, USA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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28
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Cheng CW, Chang CC, Chen HW, Lin CY, Chen JS. Serum ApoA4 levels predicted the progression of renal impairment in T2DM. Eur J Clin Invest 2018; 48:e12937. [PMID: 29675916 DOI: 10.1111/eci.12937] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/12/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND Among multiple causes, diabetic nephropathy (DN) is the major underlying renal disease that leads to end-stage renal disease (ESRD), and early diagnosis can effectively prevent or delay the progression to ESRD. Therefore, the current study aimed to develop noninvasive, accurate detection markers. MATERIALS & METHODS For this study, 62 diabetes mellitus (DM) patients, 59 DN patients and 21 healthy controls (HCs) were recruited. All participants' serum samples were subjected to concavanalin (Con) A affinity chromatography, which utilizes glycoproteins to discover potential markers. RESULTS From nano LC-MS and Western blot analysis, apolipoprotein A-IV (ApoA4) was selected which featured a gradual, almost twofold increase in the order of HC, DM and DN. In the Con A-based ELISA, the DM group was 1.91-fold higher than the HC group, while the DN group was 2.56-fold higher than the HCs and 1.33-fold higher than the DM group. In addition, significant positive correlations were observed between ApoA4 and blood urea nitrogen levels and between ApoA4 and creatine levels, while significant negative correlations were seen between serum protein levels and between serum albumin levels in comparisons of DM and DN samples. CONCLUSIONS Serum Con A-bound ApoA4 levels were higher in the DM group than in HCs, and further increased in the DN group. Levels of ApoA4 were positively correlated with blood urea nitrogen and creatine, but negatively correlated with serum protein and albumin. This evidence supports serum Con A-bound ApoA4 as a circulating marker for predicting the progression of renal impairment in DM patients.
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Affiliation(s)
- Chao-Wen Cheng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Hsiu-Wen Chen
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Ching-Yu Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan.,PhD Program in Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Jin-Shuen Chen
- Division of Nephrology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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29
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Dixon PC, Stirling L, Xu X, Chang CC, Dennerlein JT, Schiffman JM. Aging may negatively impact movement smoothness during stair negotiation. Hum Mov Sci 2018; 60:78-86. [PMID: 29843055 DOI: 10.1016/j.humov.2018.05.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 05/17/2018] [Accepted: 05/17/2018] [Indexed: 11/25/2022]
Abstract
Stairs represent a barrier to safe locomotion for some older adults, potentially leading to the adoption of a cautious gait strategy that may lack fluidity. This strategy may be characterized as unsmooth; however, stair negotiation smoothness has yet to be quantified. The aims of this study were to assess age- and task-related differences in head and body center of mass (COM) acceleration patterns and smoothness during stair negotiation and to determine if smoothness was associated with the timed "Up and Go" (TUG) test of functional movement. Motion data from nineteen older and twenty young adults performing stair ascent, stair descent, and overground straight walking trials were analyzed and used to compute smoothness based on the log-normalized dimensionless jerk (LDJ) and the velocity spectral arc length (SPARC) metrics. The associations between TUG and smoothness measures were evaluated using Pearson's correlation coefficient (r). Stair tasks increased head and body COM acceleration pattern differences across groups, compared to walking (p < 0.05). LDJ smoothness for the head and body COM decreased in older adults during stair descent, compared to young adults (p ≤ 0.015) and worsened with increasing TUG for all tasks (-0.60 ≤ r ≤ -0.43). SPARC smoothness of the head and body COM increased in older adults, regardless of task (p < 0.001), while correlations showed improved SPARC smoothness with increasing TUG for some tasks (0.33 ≤ r ≤ 0.40). The LDJ outperforms SPARC in identifying age-related stair negotiation adaptations and is associated with performance on a clinical test of gait.
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Affiliation(s)
- P C Dixon
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, USA; Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA
| | - L Stirling
- Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, USA; Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, USA
| | - X Xu
- Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, NC, USA
| | - C C Chang
- Department of Industrial Engineering & Engineering Management, National Tsing Hua University, Taiwan, ROC
| | - J T Dennerlein
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, USA; Bouvé College of Health Sciences, Northeastern University Boston, USA Sciences, Northeastern University, Boston, USA.
| | - J M Schiffman
- Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA
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30
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Lin CY, Yang ST, Shen SC, Hsieh YC, Hsu FT, Chen CY, Chiang YH, Chuang JY, Chen KY, Hsu TI, Leong WC, Su YK, Lo WL, Yeh YS, Patria YN, Shih HM, Chang CC, Chou SY. Serum amyloid A1 in combination with integrin αVβ3 increases glioblastoma cells mobility and progression. Mol Oncol 2018; 12:756-771. [PMID: 29603594 PMCID: PMC5928363 DOI: 10.1002/1878-0261.12196] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/26/2018] [Accepted: 03/07/2018] [Indexed: 12/14/2022] Open
Abstract
Glioblastoma multiforme (GBM) is a highly malignant type of brain tumor found in humans. GBM cells reproduce quickly, and the median survival time for patients after therapy is approximately 1 year with a high relapse rate. Current therapies and diagnostic tools for GBM are limited; therefore, we searched for a more favorable therapeutic target or marker protein for both therapy and diagnosis. We used mass spectrometry (MS) analysis to identify GBM-associated marker proteins from human plasma and GBM cell cultures. Additional plasma and 52 brain tissues obtained from patients with gliomas were used to validate the association rate of serum amyloid A1 (SAA1) in different grades of gliomas and its distribution in tumors. Microarray database analysis further validated the coefficient of SAA1 levels in gliomas. The cellular mechanisms of SAA1 in GBM proliferation and infiltration were investigated in vitro. We analyzed the correlation between SAA1 and patients' medication requirement to demonstrate the clinical effects of SAA1 in GBM. SAA1 was identified from MS analysis, and its level was revealed to be correlated with the disease grade, clinical severity, and survival rate of patients with gliomas. In vitro cultures, including GBM cells and normal astrocytes, revealed that SAA1 promotes cell migration and invasion through integrin αVβ3 to activate the Erk signaling pathway. Magnetic resonance imaging and tumor region-specific microarray analysis identified a correlation between SAA1 and GBM cell infiltration in patients. In summary, our results demonstrate that SAA1 in combination with integrin αV and β3 can serve as an indicator of high glioblastoma risk. We also identified the cellular mechanisms of SAA1 contributing to GBM progression, which can serve as the basis for future GBM therapy.
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Affiliation(s)
- Ching-Yu Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Shun-Tai Yang
- Division of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taiwan.,Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taiwan.,Comprehensive Cancer Center of Taipei Medical University, Taiwan
| | - Shing-Chuan Shen
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taiwan
| | - Yi-Chen Hsieh
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Fei-Ting Hsu
- Department of Medical Imaging, Taipei Medical University Hospital, Taiwan.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taiwan.,Research Center of Translational Imaging (TIRC), College of Medicine, Taipei Medical University, Taiwan
| | - Cheng-Yu Chen
- Department of Medical Imaging, Taipei Medical University Hospital, Taiwan.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taiwan.,Research Center of Translational Imaging (TIRC), College of Medicine, Taipei Medical University, Taiwan
| | - Yung-Hsiao Chiang
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taiwan.,Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,Division of Neurosurgery, Department of Surgery, Taipei Medical University Hospital, Taiwan
| | - Jian-Ying Chuang
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Kai-Yun Chen
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Tsung-I Hsu
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Wan-Chong Leong
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Yu-Kai Su
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taiwan
| | - Wei-Lun Lo
- Division of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taiwan.,Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Yi-Shian Yeh
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taiwan
| | - Yudha Nur Patria
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
| | - Hsiu-Ming Shih
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,Neuroscience Research Center, Taipei Medical University Hospital, Taiwan
| | - Szu-Yi Chou
- Graduate Institute of Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan.,The PhD Program for Neural Regenerative Medicine, College of Medical Science and Technology, Taipei Medical University, Taiwan
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31
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Cheng TM, Chu HL, Lee YC, Wang DY, Chang CC, Chung KL, Yen HC, Hsiao CW, Pan XY, Kuo TR, Chen CC. Quantitative Analysis of Glucose Metabolic Cleavage in Glucose Transporters Overexpressed Cancer Cells by Target-Specific Fluorescent Gold Nanoclusters. Anal Chem 2018; 90:3974-3980. [PMID: 29466668 DOI: 10.1021/acs.analchem.7b04961] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The glucose metabolism rate in cancer cells is a crucial piece of information for the cancer aggressiveness. A feasible method to monitor processes of oncogenic mutations has been demonstrated in this work. The fluorescent gold nanoclusters conjugated with glucose (glucose-AuNCs) were successfully synthesized as a cancer-targeting probe for glucose transporters (Gluts) overexpressed by U-87 MG cancer cells, which can be observed under confocal microscopy. The structural and optical characterizations of fluorescent glucose-AuNCs were confirmed by transmission electron microscope (TEM) and Fourier transform infrared spectroscopy (FTIR). The MTT assay exhibited the high biocompatibility of water-soluble glucose-AuNCs for further biomedical applications. The glucose metabolic cleavage of glucose-AuNCs by glycolytic enzymes from U-87 MG cancer cell was measured by fluorescence change of glucose-AuNCs. The fluorescence change based on the integrated area under fluorescence spectra ( A t) of glucose-AuNCs was plotted as a function of different reaction time ( t) with glycolytic enzymes. The fitted curve of A t versus t showed the first-order kinetics to explain the mechanism of glucose metabolic cleavage rate of glucose-AuNCs by glycolytic enzymes. The rate constant k could be utilized to determine the glucose metabolism rate of glucose-AuNCs for the quantitative analysis of cancer aggressiveness. Our work provides a practical application of target-specific glucose-AuNCs as a fluorescence probe to analyze the glucose metabolism in Gluts overexpressed cancer cells.
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Affiliation(s)
- Tsai-Mu Cheng
- Graduate Institute of Translational Medicine, College of Medicine and Technology , Taipei Medical University , Taipei 11031 , Taiwan
| | - Hsueh-Liang Chu
- Graduate Institute of Translational Medicine, College of Medicine and Technology , Taipei Medical University , Taipei 11031 , Taiwan
| | - Yi-Cheng Lee
- Green Energy and Environment Research Laboratories , Industrial Technology Research Institute , Hsinchu 31040 , Taiwan
| | - Di-Yan Wang
- Department of Chemistry , Tunghai University , Taichung 40704 , Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medicine and Technology , Taipei Medical University , Taipei 11031 , Taiwan
| | - Kuan-Lan Chung
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Hung-Chi Yen
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Chu-Wen Hsiao
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Xi-Yu Pan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering , Taipei Medical University , Taipei 11031 , Taiwan
| | - Tsung-Rong Kuo
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering , Taipei Medical University , Taipei 11031 , Taiwan.,International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering , Taipei Medical University , Taipei 11031 , Taiwan
| | - Chia-Chun Chen
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
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32
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Naderi A, Koschella A, Heinze T, Shih KC, Nieh MP, Pfeifer A, Chang CC, Erlandsson J. Corrigendum to "Sulfoethylated nanofibrillated cellulose: Production and properties" [Carbohydr. Polym. 169 (2017) 515-523]. Carbohydr Polym 2018; 179:1. [PMID: 29111030 DOI: 10.1016/j.carbpol.2017.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- A Naderi
- Innventia AB, Box 5604, SE-11486 Stockholm, Sweden.
| | - A Koschella
- Friedrich Schiller University of Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Humboldtstraße 10, D-07743, Jena, Germany.
| | - T Heinze
- Friedrich Schiller University of Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Humboldtstraße 10, D-07743, Jena, Germany.
| | - K C Shih
- Department of Chemical & Biomolecular Engineering, 97 North Eagleville Road, Storrs, CT-06269-3136, United States; Department of Agricultural Chemistry, Taiwan.
| | - M P Nieh
- Department of Chemical & Biomolecular Engineering, 97 North Eagleville Road, Storrs, CT-06269-3136, United States.
| | - A Pfeifer
- Friedrich Schiller University of Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Humboldtstraße 10, D-07743, Jena, Germany.
| | - C C Chang
- ThINC Facility at Advanced Energy Research & Technology Center, 1000 Innovation Road, Stony Brook, NY, 11794-6044, United States.
| | - J Erlandsson
- Department of Fibre and Polymer Technology, KTH - Royal Institute of Technology, Teknikringen 56, SE-100 44 Stockholm, Sweden.
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33
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Huang YS, Chang CC, Lee SS, Jou YS, Shih HM. Xist reduction in breast cancer upregulates AKT phosphorylation via HDAC3-mediated repression of PHLPP1 expression. Oncotarget 2017; 7:43256-43266. [PMID: 27248326 PMCID: PMC5190021 DOI: 10.18632/oncotarget.9673] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/12/2016] [Indexed: 11/30/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) dysregulated in cancer potentially play oncogenic or tumor-suppressive roles. While the X inactivate-specific transcript (Xist) lncRNA is important for X-chromosome inactivation in female cells, very little is known about the role of Xist in human breast cancer in modulating cellular pathway(s). Here, we show that Xist expression is significantly reduced in breast tumor samples and cancer cell lines. Xist knockdown or overexpression resulted in increased or decreased levels, respectively, of AKT phosphorylation and cell viability. Further studies revealed an inverse correlation between Xist and phospho-AKT levels in breast cancer samples. Additionally, Xist knockdown-elicited increase of cell viability was attenuated by AKT inhibitor. These results suggest that Xist negatively regulates cell viability via inhibition of AKT activation. Interestingly, decreased Xist expression in breast cancer samples was associated with reduced levels of Jpx RNA, an lncRNA that positively regulates Xist promoter activity. Accordingly, Jpx knockdown enhanced AKT activation and cell viability. We also demonstrate that knockdown of Xist or SPEN, an intermediator protein to link Xist, SMRT co-repressor and HDAC3 complexes for X-chromosome inactivation, decreased expression of PHLPP1, a phosphatase to remove AKT phosphorylation, via increased HDAC3 recruitment to the PHLPP1 promoter, correlating with increased AKT phosphorylation. Our findings elucidate the tumor suppressor role of Xist in breast cancer and provide the molecular basis of Xist in downregulating AKT activation.
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Affiliation(s)
- Yen-Sung Huang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Szu-Shuo Lee
- Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Yuh-Shan Jou
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
| | - Hsiu-Ming Shih
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Program in Molecular Medicine, National Yang-Ming University and Academia Sinica, Taipei, Taiwan
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34
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Hsu SH, Chuang KW, Chen CS, Lin CY, Chang CC. Two Interrogated FBG Spectral Linewidth for Strain Sensing through Correlation. Sensors (Basel) 2017; 17:s17122837. [PMID: 29215559 PMCID: PMC5751093 DOI: 10.3390/s17122837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 11/20/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
The spectral linewidth from two cross-correlated fiber Bragg gratings (FBGs) are interrogated and characterized using a delayed self-homodyne method for fiber strain sensing. This approach employs a common higher frequency resolution instead of wavelength. A sensitivity and resolution of 166 MHz/με and 50 nε were demonstrated from 4 GHz spectral linewidth characterization on the electric spectrum analyzer. A 10 nε higher resolution can be expected through random noise analyses when the spectral linewidth from two FBG correlations is reduced to 1 GHz. Moreover, the FBG spectrum is broadened during strain and experimentally shows a 0.44 pm/με sensitivity, which is mainly caused by the photo elastic effect from the fiber grating period stretch.
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Affiliation(s)
- Shih-Hsiang Hsu
- Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Kuo-Wei Chuang
- Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Ci-Syu Chen
- Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Ching-Yu Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing Street, Taipei 11031, Taiwan.
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, 250 Wu-Hsing Street, Taipei 11031, Taiwan.
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35
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Abstract
Tracheal bronchus is a congenital anatomical variant of patients with accessory bronchus in the right upper lobe deriving directly from the supracarinal trachea. Pre-operative consultation with the anesthesiologist is important for patient safety and can avoid adverse effects induced by endotracheal intubation. In this report, we described a case of tracheal bronchus in which general anesthesia was performed for video-assisted thoracoscopic surgery. We discussed some of the issues surrounding to complications in tracheal bronchus.
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Affiliation(s)
- K M Lai
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
| | - M H Hsieh
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
| | - F Lam
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan
| | - C Y Chen
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - T L Chen
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - C C Chang
- Department of Anesthesiology, Taipei Medical University Hospital, Taipei, Taiwan; Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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36
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Cheng CW, Chang CC, Patria YN, Chang RT, Liu YR, Li FA, Shih HM, Lin CY. Sex hormone-binding globulin (SHBG) is a potential early diagnostic biomarker for gastric cancer. Cancer Med 2017; 7:64-74. [PMID: 29148252 PMCID: PMC5773940 DOI: 10.1002/cam4.1254] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/15/2017] [Accepted: 10/13/2017] [Indexed: 12/11/2022] Open
Abstract
The use of blood plasma biomarkers in gastric cancer (GC) management is limited due to a lack of reliable biomarkers. An LC‐MS/MS assay and a bioinformatic analysis were performed to identify blood plasma biomarkers in a GC discovery cohort. The data obtained were verified and validated by western blotting and an ELISA in an independent study cohort. A label‐free quantification analysis of the MS data using PEAKS7 software found that four plasma proteins of apolipoprotein C‐1, gelsolin, sex hormone‐binding globulin (SHBG), and complement component C4‐A were significantly overexpressed in GC patients. A western blot assay of these plasma proteins showed that only SHBG was consistently overexpressed in the patient group. ELISA measurement of SHBG blood plasma levels confirmed that the patient group had significantly higher SHBG levels than the control group. SHBG levels in the patient group remained significantly higher after being stratified by gender, age, and disease stage. These findings show that LC‐MS/MS is powerful and highly sensitive for plasma biomarker discovery, and SHBG could be a potential plasma biomarker for GC management.
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Affiliation(s)
- Chao-Wen Cheng
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan
| | - Che-Chang Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.,Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan.,Traditional Herbal Medicine Research Center of Taipei Medical University Hospital, Taipei, 11031, Taiwan
| | - Yudha Nur Patria
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, 11031, Taiwan.,Department of Pediatrics, Faculty of Medicine, Universitas Gadjah Mada/Sardjito Hospital, Yogyakarta, 55281, Indonesia
| | - Ruei-Ting Chang
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
| | - Yun-Ru Liu
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, 11031, Taiwan
| | - Fu-An Li
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Hsiu-Ming Shih
- Graduate Institute of Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan.,Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Ching-Yu Lin
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, 11031, Taiwan
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37
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Faber GS, Koopman AS, Kingma I, Chang CC, Dennerlein JT, van Dieën JH. Continuous ambulatory hand force monitoring during manual materials handling using instrumented force shoes and an inertial motion capture suit. J Biomech 2017; 70:235-241. [PMID: 29157658 DOI: 10.1016/j.jbiomech.2017.10.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/20/2017] [Accepted: 10/15/2017] [Indexed: 11/17/2022]
Abstract
Hand forces (HFs) are commonly measured during biomechanical assessment of manual materials handling; however, it is often a challenge to directly measure HFs in field studies. Therefore, in a previous study we proposed a HF estimation method based on ground reaction forces (GRFs) and body segment accelerations and tested it with laboratory equipment: GFRs were measured with force plates (FPs) and segment accelerations were measured using optical motion capture (OMC). In the current study, we evaluated the HF estimation method based on an ambulatory measurement system, consisting of inertial motion capture (IMC) and instrumented force shoes (FSs). Sixteen participants lifted and carried a 10-kg crate from ground level while 3D full-body kinematics were measured using OMC and IMC, and 3D GRFs were measured using FPs and FSs. We estimated 3D hand force vectors based on: (1) FP+OMC, (2) FP+IMC and (3) FS+IMC. We calculated the root-mean-square differences (RMSDs) between the estimated HFs to reference HFs calculated based on crate kinematics and the GRFs of a FP that the crate was lifted from. Averaged over subjects and across 3D force directions, the HF RMSD ranged between 10-15N when using the laboratory equipment (FP + OMC), 11-18N when using the IMC instead of OMC data (FP+IMC), and 17-21N when using the FSs in combination with IMC (FS + IMC). This error is regarded acceptable for the assessment of spinal loading during manual lifting, as it would results in less than 5% error in peak moment estimates.
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Affiliation(s)
- G S Faber
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA.
| | - A S Koopman
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - I Kingma
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - C C Chang
- Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA; Department of Industrial Engineering & Engineering Management, National Tsing Hua University, Taiwan, ROC
| | - J T Dennerlein
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Physical Therapy, Movement, and Rehabilitation Sciences, Northeastern University, Boston, MA, USA
| | - J H van Dieën
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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38
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Ko HH, Chang CC, Lin CH, Kuo YH, Chen IS, Chang HS. Bioactive chemical constituents isolated from the root of Neolitsea acuminatissima. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- HH Ko
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - CC Chang
- Department of Fragrance and Cosmetic Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - CH Lin
- Research Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - YH Kuo
- Department of Chinese Pharmaceutical Science and Chinese Medicine Resources, China Medical University, Taichung, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
| | - IS Chen
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - HS Chang
- Research Center for Natural Products and Drug Development, Kaohsiung Medical University, Kaohsiung, Taiwan
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
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39
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Åmellem I, Suresh S, Chang CC, Tok SSL, Tashiro A. A critical period for antidepressant-induced acceleration of neuronal maturation in adult dentate gyrus. Transl Psychiatry 2017; 7:e1235. [PMID: 28925998 PMCID: PMC5639251 DOI: 10.1038/tp.2017.208] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 06/21/2017] [Indexed: 11/15/2022] Open
Abstract
Selective serotonin reuptake inhibitors (SSRIs) are the most commonly used medications for mood and anxiety disorders, and adult neurogenesis in the dentate gyrus has been shown to be involved in the behavioral effects of SSRIs in mice. Studies have shown the varied effects of chronic treatment with SSRIs on adult neurogenesis. One such effect is the acceleration of neuronal maturation, which affects the functional integration of new neurons into existing neuronal circuitry. In this study, we labeled new neurons by using GFP-expressing retroviral vectors in mice and investigated the effect of an SSRI, fluoxetine, on these neurons at different time points after neuronal birth. Chronic treatment with fluoxetine accelerated the dendritic development of the newborn neurons and shifted the timing of the expression of the maturational marker proteins, doublecortin and calbindin. This accelerated maturation was observed even after sub-chronic treatment, only when fluoxetine was administered during the second week of neuronal birth. These results suggest the existence of a 'critical period' for the fluoxetine-induced maturation of new neurons. We propose that the modified functional integration of new neurons in the critical period may underlie the behavioral effects of fluoxetine by regulating anxiety-related decision-making processes.
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Affiliation(s)
- I Åmellem
- Kavli Institute for Systems Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway,St Olavs Hospital, Trondheim, Norway,Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, Singapore,Warwick-NTU Neuroscience Programme, School of Life Sciences, University of Warwick, Coventry, UK,Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, 11 Mandalay Road #12-01B, Singapore 308232. E-mail: or
| | - S Suresh
- Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, Singapore,Warwick-NTU Neuroscience Programme, School of Life Sciences, University of Warwick, Coventry, UK
| | - C C Chang
- Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, Singapore,Warwick-NTU Neuroscience Programme, School of Life Sciences, University of Warwick, Coventry, UK
| | - S S L Tok
- Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, Singapore,Warwick-NTU Neuroscience Programme, School of Life Sciences, University of Warwick, Coventry, UK
| | - A Tashiro
- Kavli Institute for Systems Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway,St Olavs Hospital, Trondheim, Norway,Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, Singapore,Warwick-NTU Neuroscience Programme, School of Life Sciences, University of Warwick, Coventry, UK,Warwick-NTU Neuroscience Programme, School of Biological Sciences, Nanyang Technological University, 11 Mandalay Road #12-01B, Singapore 308232. E-mail: or
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40
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Li HY, Duan Y, Yang BQ, Chang CC, Liu N, Zhang LX, Lin S. [Analysis of the correlation between deep medullary veins and clinical prognosis of middle cerebral artery stroke]. Zhonghua Yi Xue Za Zhi 2017; 97:1956-1959. [PMID: 28693074 DOI: 10.3760/cma.j.issn.0376-2491.2017.25.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relativity between the distribution of deep medullary vein (DMV) in patients with middle cerebral artery stroke and clinical prognosis by using susceptibility-weighted imaging (SWI). Methods: A total of 144 cases of middle cerebral artery stroke patients and 55 healthy volunteers were retrospectively analyzed from January 2015 to October 2015 in order to investigate the symmetrical characteristic and the classification of DMV, then 30 cases were followed up. Kappa test was used to consider the consistency of judging DMV symmetry and type data by two radiologists. Results:Kappa value in DMV symmetry and DMV type were 0.875 and 0.852. Chi-square test analysis revealed a statistically significant difference of DMV symmetry between healthy control and stroke group(χ(2)=31.046, P=0.000). There was correlation between DMV type and NIHSS score in stroke group (r(s)=0.208, P=0.025). There was no statistically significant difference of DMV distribution in the different periods of stroke group (P=0.110). But there was statistically significant difference of DMV distribution between acute and chronic stroke (P=0.018). Among 30 follow-up cases, 18 cases with asymmetry DMV changed into symmetry after stroke therapy. In 8 cases with symmetry DMV, the diameter of DMV became smaller after treatment. In 4 cases, DMV had no changes. Conclusions: DMV in patients of MCA stroke are mostly asymmetry distribution. DMV classification can be used as an imaging standard to predict the prognosis of stroke patients.
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Affiliation(s)
- H Y Li
- Department of Radiology, the General Hospital of Shenyang Military Region, Shenyang 110016, China
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41
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Duan Y, Yang BQ, Chang CC, Zhou J, Li HY, Xu ZH, Wang ZW, Li DY. [Preliminary study on assessment of lexiscan-induced blood-brain barrier opening and its level by CT perfusion imaging]. Zhonghua Yi Xue Za Zhi 2017; 96:2825-2829. [PMID: 27686551 DOI: 10.3760/cma.j.issn.0376-2491.2016.35.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the level of lexiscan-induced blood-brain barrier opening of healthy rabbits via CT perfusion weighted imaging (PWI) scan. Methods: Between November 2014 and May 2015, thirty New Zealand white rabbits were randomly assigned into three groups: the experimental group A1 which received one injection of lexiscan(1 ml/kg); the experimental group A2 which received three times injection of lexiscan(total dose: 1.5 ml/kg), finished within 15 minutes; the control group B which was injected the same volume normal saline(1 ml/kg), after 30 minutes, CT PWI scan was performed. Then cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT) and permeability surface(PS) of the region of interest of each group were acquired and compared statistically. Five cases of each group were injected with 2% Evans blue intravenously posterior to imaging. After one hour of infusion, all the animals were killed. Their brains were examined for the determination of Evans blue distribution. Results: Both the values of CBF and CBV and the staining with Evans blue of the group A1(CBF: (89.88±2.21), (81.42±4.28) ml·(100 g)-1·min-1; CBV: (3.97±0.43), (3.66±0.16) ml/g)and group A2 (CBF: (75.16±0.84), (63.66±7.21) ml·(100 g)-1·min-1; CBV: (4.07±0.01), (3.75±0.05) ml/g) were higher than those of the group B(CBF: (20.08±5.08), (14.58±8.62) ml·(100 g)-1·min-1; CBV: (0.85±0.04), (0.65±0.17) ml/g), the differences were all statistically significant (all P<0.01). While there was no statistically difference between group A1 and group A2(P>0.05). The value of PS of the group A2((22.43±8.09), (20.20±7.01)ml·(100 g)-1·min-1 )was higher than that of group A1((13.82±4.44), (10.12±2.44)ml·(100 g)-1·min-1) and group B(0.00, 0.00)(the lowest one), the differences were all statistically significant(all P<0.01). The value of MTT of the group A1((2.50±0.82, 2.47±0.10) s) had no statistical difference with group A2 and group B, while the value of group A2((4.50±0.17), (4.72±0.15) s) was higher than that of group B((1.88±0.09), (1.99±0.00) s), the differences were all statistically significant (P<0.05). Conclusion: Changes in hemodynamics of lexiscan-induced blood-brain barrier opening can be monitored by CT PWI scan. When the total dose of lexiscan increasing, the level of the BBB opening is higher with significantly increased CBF, CBV, PS and MTT.
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Affiliation(s)
- Y Duan
- *Department of Radiology, the General Hospital of Shenyang Military Region, Shenyang 110016, China
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Chang YS, Chang CC, Chen YH, Chen WS, Chen JH. Risk of infective endocarditis in patients with systemic lupus erythematosus in Taiwan: a nationwide population-based study. Lupus 2017; 26:1149-1156. [PMID: 28420053 DOI: 10.1177/0961203317694260] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Objectives Patients with systemic lupus erythematosus are considered vulnerable to infective endocarditis and prophylactic antibiotics are recommended before an invasive dental procedure. However, the evidence is insufficient. This nationwide population-based study evaluated the risk and related factors of infective endocarditis in systemic lupus erythematosus. Methods We identified 12,102 systemic lupus erythematosus patients from the National Health Insurance research-oriented database, and compared the incidence rate of infective endocarditis with that among 48,408 non-systemic lupus erythematosus controls. A Cox multivariable proportional hazards model was employed to evaluate the risk of infective endocarditis in the systemic lupus erythematosus cohort. Results After a mean follow-up of more than six years, the systemic lupus erythematosus cohort had a significantly higher incidence rate of infective endocarditis (42.58 vs 4.32 per 100,000 person-years, incidence rate ratio = 9.86, p < 0.001) than that of the control cohort. By contrast, the older systemic lupus erythematosus cohort had lower risk (adjusted hazard ratio 11.64) than that of the younger-than-60-years systemic lupus erythematosus cohort (adjusted hazard ratio 15.82). Cox multivariate proportional hazards analysis revealed heart disease (hazard ratio = 5.71, p < 0.001), chronic kidney disease (hazard ratio = 2.98, p = 0.034), receiving a dental procedure within 30 days (hazard ratio = 36.80, p < 0.001), and intravenous steroid therapy within 30 days (hazard ratio = 39.59, p < 0.001) were independent risk factors for infective endocarditis in systemic lupus erythematosus patients. Conclusions A higher risk of infective endocarditis was observed in systemic lupus erythematosus patients. Risk factors for infective endocarditis in the systemic lupus erythematosus cohort included heart disease, chronic kidney disease, steroid pulse therapy within 30 days, and a recent invasive dental procedure within 30 days.
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Affiliation(s)
- Y S Chang
- 1 Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,2 Division of Allergy, Immunology, and Rheumatology, Shuang Ho Hospital, Taipei Medical University, Taiwan
| | - C C Chang
- 1 Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,3 Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Taipei Medical University Hospital, Taipei, Taiwan
| | - Y H Chen
- 4 Biostatistics Center, College of Management, Taipei Medical University, Taiwan
| | - W S Chen
- 5 Division of Rheumatology, Immunology, and Allergy, Taipei Veterans General Hospital, Taiwan
| | - J H Chen
- 6 Biostatistics Center and Graduate Institute of Data Science, College of Management, Taipei Medical University, Taiwan
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Tuan PH, Chang CC, Chang FL, Lee CY, Sung CL, Cho CY, Chen YF, Su KW. Modelling end-pumped passively Q-switched Nd-doped crystal lasers: manifestation by a Nd:YVO 4/Cr 4+:YAG system with a concave-convex resonator. Opt Express 2017; 25:1710-1722. [PMID: 29519025 DOI: 10.1364/oe.25.001710] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A theoretical model for the passively Q-switched (PQS) operation which includes the spatial overlapping between the pump and lasing modes under the thermal lensing effect is developed to give a transcendental equation that can directly determine the critical parameters such as pulse energy, pulse repetition rate, and pulse width for the PQS performance. More importantly, an analytical function which gives the approximate solution for the transcendental equation as well as a specific critical criterion for good PQS operation are derived for practical analyses and design. A Nd:YVO4/Cr4+:YAG system with a concave-convex resonator which can achieve fairly stable PQS pulse trains even at a high pump level is further exploited to manifest the proposed spatially dependent model. The good agreement between the experimental results and the theoretical predictions is verified to show the feasibility of the proposed model for designing high-power PQS lasers with high accuracy.
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Sung CL, Lee CY, Chang CC, Liang HC, Chen YF. Generation of terahertz optical beating from a simultaneously self-mode-locked Nd:YAG laser at 1064 and 1123 nm. Opt Lett 2017; 42:302-305. [PMID: 28081098 DOI: 10.1364/ol.42.000302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The reflectivity of the output coupler is designed to achieve the synchronously self-mode-locked operation at 1064 and 1123 nm in a diode-end-pumped Nd:YAG laser. Numerical analyses are performed to confirm that the designed output coupler can lead the emission lines to be predominant at 1064 and 1123 nm. Moreover, the crossover of the threshold pump powers for the 1064 and 1123 nm emission lines can be exploited to obtain the single central wavelength of 1064 nm or the single central wavelength of 1123 nm or, simultaneously, dual-central-wavelength self-mode-locked operation by finely adjusting the cavity alignment. For the dual-central-wavelength mode-locked emissions, the pulse repetition rate and the pulse duration are 4.5 GHz and 50.8 ps, respectively. The maximum output power can be up to 2.47 W at a pump power of 7.5 W. The synchronization of the 1064 and 1123 nm mode-locked pulses generates the optical beating pulse trains with repetition rates up to 14.7 THz.
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Wu CD, Cheng CC, Chang CC, Lin C, Chang KC, Chuang YC. Gap Shape Classification using Landscape Indices and Multivariate Statistics. Sci Rep 2016; 6:38217. [PMID: 27901127 PMCID: PMC5128799 DOI: 10.1038/srep38217] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 06/21/2016] [Accepted: 11/07/2016] [Indexed: 11/30/2022] Open
Abstract
This study proposed a novel methodology to classify the shape of gaps using landscape indices and multivariate statistics. Patch-level indices were used to collect the qualified shape and spatial configuration characteristics for canopy gaps in the Lienhuachih Experimental Forest in Taiwan in 1998 and 2002. Non-hierarchical cluster analysis was used to assess the optimal number of gap clusters and canonical discriminant analysis was used to generate the discriminant functions for canopy gap classification. The gaps for the two periods were optimally classified into three categories. In general, gap type 1 had a more complex shape, gap type 2 was more elongated and gap type 3 had the largest gaps that were more regular in shape. The results were evaluated using Wilks’ lambda as satisfactory (p < 0.001). The agreement rate of confusion matrices exceeded 96%. Differences in gap characteristics between the classified gap types that were determined using a one-way ANOVA showed a statistical significance in all patch indices (p = 0.00), except for the Euclidean nearest neighbor distance (ENN) in 2002. Taken together, these results demonstrated the feasibility and applicability of the proposed methodology to classify the shape of a gap.
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Affiliation(s)
- Chih-Da Wu
- Department of Forestry and Natural Resources, College of Agriculture, National Chiayi University, Chiayi, 60004, Taiwan
| | - Chi-Chuan Cheng
- The Department and Graduate Institute of Landscape Architecture, Chinese Culture University, Taipei, 11114, Taiwan
| | - Che-Chang Chang
- Technical Service Division, Taiwan Forestry Research Institute, Taipei, 10066, Taiwan
| | - Chinsu Lin
- Department of Forestry and Natural Resources, College of Agriculture, National Chiayi University, Chiayi, 60004, Taiwan
| | - Kun-Cheng Chang
- Department of Forestry and Natural Resources, College of Agriculture, National Chiayi University, Chiayi, 60004, Taiwan
| | - Yung-Chung Chuang
- Department of the Urban Planning and Spatial Information, Feng Chia University, Taichung, 407, Taiwan
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Tuan PH, Chang CC, Lee CY, Cho CY, Liang HC, Chen YF. Exploiting concave-convex linear resonators to design end-pumped solid-state lasers with flexible cavity lengths: Application for exploring the self-mode-locked operation. Opt Express 2016; 24:26024-26034. [PMID: 27857341 DOI: 10.1364/oe.24.026024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The characteristics of a convex-concave linear resonator under the thermal lensing effect are theoretically analyzed to find an analytical model for designing end-pumped solid-state lasers with flexible cavity lengths. By exploiting the design model, the power scaling for continuous-wave operation under strong thermal lensing can be easily achieved in the proposed resonator with different cavity lengths. Furthermore, the proposed resonator is applied to explore the exclusive influence of cavity length on the self-mode-locked (SML) operation. It is discovered that the lasing longitudinal modes will split into multiple groups in optical spectrum to lead to a multi-pulse mode-locked temporal state when the cavity length increases. Finally, a theoretical model is derived to reconstruct the experimental results of SML operation to deduce a simple relationship between the group number of lasing modes and the cavity length.
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Li E, Chang CC, Zhang Z, Li Q. Characterization of tissue scaffolds for time-dependent biotransport criteria - a novel computational procedure. Comput Methods Biomech Biomed Engin 2015; 19:1210-24. [PMID: 26718135 DOI: 10.1080/10255842.2015.1124268] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This study aims to establish a new computational framework that allows modeling transient oxygen diffusion in tissue scaffolds more efficiently. It has been well known that the survival of cells strongly relies on continuous oxygen/nutrient supply and metabolite removal. With optimal design in scaffold architecture, its ability to sustain long distance oxygen supply could be improved considerably. In this study, finite element based homogenization procedure is first used to characterize the initial effective biotransport properties in silico. These initial properties are proper indicators to prediction of the on-going performance of tissue scaffolds over time. The transient model by adopting an edge-based smoothed finite element method with combination of mass-redistributed method is then established to more efficiently simulate the transient oxygen transfer process in tissue scaffolds. The proposed new method allows large time steps to model the oxygen diffusion process without losing numerical accuracy, thereby enhancing the computational efficiency significantly, in particular for the design optimization problems which typically require numerous analysis iterations. A number of different scaffold designs are examined either under net diffusion without cell seeding, or under cellular oxygen/nutrient uptake with or without considering cell viability. The association between the homogenized effective diffusivity of net scaffold microstructures and corresponding transient diffusion and time-dependent cellular activities is divulged. This study provides some insights into scaffold design.
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Affiliation(s)
- Eric Li
- a School of Aerospace, Mechanical and Mechatronic Engineering , The University of Sydney , Sydney , Australia
| | - C C Chang
- a School of Aerospace, Mechanical and Mechatronic Engineering , The University of Sydney , Sydney , Australia
| | - Zhongpu Zhang
- a School of Aerospace, Mechanical and Mechatronic Engineering , The University of Sydney , Sydney , Australia
| | - Qing Li
- a School of Aerospace, Mechanical and Mechatronic Engineering , The University of Sydney , Sydney , Australia
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Faber GS, Chang CC, Kingma I, Dennerlein JT, van Dieën JH. Estimating 3D L5/S1 moments and ground reaction forces during trunk bending using a full-body ambulatory inertial motion capture system. J Biomech 2015; 49:904-912. [PMID: 26795123 DOI: 10.1016/j.jbiomech.2015.11.042] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 10/25/2015] [Accepted: 11/20/2015] [Indexed: 12/22/2022]
Abstract
Inertial motion capture (IMC) systems have become increasingly popular for ambulatory movement analysis. However, few studies have attempted to use these measurement techniques to estimate kinetic variables, such as joint moments and ground reaction forces (GRFs). Therefore, we investigated the performance of a full-body ambulatory IMC system in estimating 3D L5/S1 moments and GRFs during symmetric, asymmetric and fast trunk bending, performed by nine male participants. Using an ambulatory IMC system (Xsens/MVN), L5/S1 moments were estimated based on the upper-body segment kinematics using a top-down inverse dynamics analysis, and GRFs were estimated based on full-body segment accelerations. As a reference, a laboratory measurement system was utilized: GRFs were measured with Kistler force plates (FPs), and L5/S1 moments were calculated using a bottom-up inverse dynamics model based on FP data and lower-body kinematics measured with an optical motion capture system (OMC). Correspondence between the OMC+FP and IMC systems was quantified by calculating root-mean-square errors (RMSerrors) of moment/force time series and the interclass correlation (ICC) of the absolute peak moments/forces. Averaged over subjects, L5/S1 moment RMSerrors remained below 10Nm (about 5% of the peak extension moment) and 3D GRF RMSerrors remained below 20N (about 2% of the peak vertical force). ICCs were high for the peak L5/S1 extension moment (0.971) and vertical GRF (0.998). Due to lower amplitudes, smaller ICCs were found for the peak asymmetric L5/S1 moments (0.690-0.781) and horizontal GRFs (0.559-0.948). In conclusion, close correspondence was found between the ambulatory IMC-based and laboratory-based estimates of back load.
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Affiliation(s)
- G S Faber
- Department of Human Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, The Netherlands; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA.
| | - C C Chang
- Liberty Mutual Research Institute for Safety, Hopkinton, MA, USA; Department of Industrial Engineering & Engineering Management National Tsing Hua University, Taiwan, ROC
| | - I Kingma
- Department of Human Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, The Netherlands
| | - J T Dennerlein
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Physical Therapy, Movement, and Rehabilitation Sciences, Northeastern University, Boston, MA, USA
| | - J H van Dieën
- Department of Human Movement Sciences, Faculty of Behaviour and Movement Sciences, Vrije Universiteit Amsterdam, MOVE Research Institute Amsterdam, The Netherlands
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Abstract
Inhalation of Cryptococcus into the respiratory system is the main route of acquisition of human infection, yet pulmonary cryptococcosis goes mostly unrecognized by many clinicians. This delay in diagnosis, or misdiagnosis, of lung infections is due in part to frequently subtle clinical manifestations such as a subacute or chronic cough, a broad differential of diagnostic possibilities for associated pulmonary masses (cryptococcomas) and, on occasion, negative respiratory tract cultures. Hematogenous dissemination from the lung can result in protean manifestations, the most severe of which is meningoencephalitis. There are few clinical studies of pulmonary cryptococcosis and its pathogenesis is poorly understood. The main purpose of this review is to describe the epidemiology, clinical presentation, diagnosis, and treatment of pulmonary cryptococcosis to increase clinician's awareness of this diagnostic possibility and to enhance clinical management. Useful pointers to the approach and management of pulmonary cryptococcosis and the implications of disseminated disease are included, together with recommendations for future research.
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Affiliation(s)
- C C Chang
- Lewin-Cameron Laboratory, The Doherty Institute, University of Melbourne, Melbourne, Australia
| | - T C Sorrell
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia
| | - S C-A Chen
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, NSW, Australia
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Slavin MA, Thursky KA, Worth LJ, Chang CC, Morrissey CO, Blyth CC, Chen SC, Szer J. Introduction to the updated Australian and New Zealand consensus guidelines for the use of antifungal agents in the haematology/oncology setting, 2014. Intern Med J 2015; 44:1267-76. [PMID: 25482739 DOI: 10.1111/imj.12593] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [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: 11/29/2022]
Abstract
This article introduces the second revision of the Australian and New Zealand consensus guidelines for the use of antifungal agents in the haematology/oncology setting. The current update occurs within the context of a growing population at risk of invasive fungal disease, improved understanding of risk factors, availability of new diagnostic tests, a much-expanded evidence base and changing clinical paradigms. Here, we provide an overview of the history and purpose of the guidelines, including changes in scope since the last clinical update was published in 2008. The process for development, and for enabling review of draft recommendations by end-users and other relevant stakeholders, is described. The approach to assigning levels of evidence and grades of recommendation is also provided, along with a comparison to international grading systems.
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Affiliation(s)
- M A Slavin
- Department of Infectious Diseases and Infection Control, Peter MacCallum Cancer Centre, East Melbourne, Victoria; Victorian Infectious Diseases Service, The Doherty Institute for Infection and Immunity, Parkville, Victoria; School of Medicine, The University of Melbourne, Melbourne, Victoria
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