1
|
Hong S, Ahn M, Moon C, Ortiz-Leal I, Sanchez-Quinteiro P, Kang T, Shin T. Histological evaluation of the alpaca (Vicugna pacos) vomeronasal organ. J Vet Med Sci 2024:23-0430. [PMID: 38508726 DOI: 10.1292/jvms.23-0430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024] Open
Abstract
Little is known about the neuronal structure of the vomeronasal organ (VNO), a receptor organ responsible for pheromone perception, in the alpaca (Vicugna pacos). This study was performed to determine the localization of neuronal elements, including protein gene product 9.5 (PGP 9.5), a pan-neuronal marker, olfactory marker protein (OMP), a marker of mature olfactory receptor cells, and phospholipase C beta 2 (PLC-β2), a marker of solitary chemoreceptor cells (SCCs), in the VNO. OMP was identified in receptor cells of the vomeronasal sensory epithelium (VSE), while PGP 9.5 and PLC-β2 were localized in both the VSE and vomeronasal non-sensory epithelium. Collectively, these results suggested that the alpaca VNO possesses SCCs and olfactory receptor cells, which recognize both harmful substances and pheromones.
Collapse
Affiliation(s)
- Sungmoo Hong
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University
| | - Changjong Moon
- Department of Veterinary Anatomy and Animal Behavior, College of Veterinary Medicine and BK21 Plus Project Team, Chonnam National University
| | - Irene Ortiz-Leal
- Department of Anatomy, Animal Production and Clinical Veterinary Sciences, Faculty of Veterinary, University of Santiago de Compostela
| | - Pablo Sanchez-Quinteiro
- Department of Anatomy, Animal Production and Clinical Veterinary Sciences, Faculty of Veterinary, University of Santiago de Compostela
| | - Taeyoung Kang
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University
| | - Taekyun Shin
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University
| |
Collapse
|
2
|
Chitti SV, Gummadi S, Kang T, Shahi S, Marzan AL, Nedeva C, Sanwlani R, Bramich K, Stewart S, Petrovska M, Sen B, Ozkan A, Akinfenwa M, Fonseka P, Mathivanan S. Vesiclepedia 2024: an extracellular vesicles and extracellular particles repository. Nucleic Acids Res 2024; 52:D1694-D1698. [PMID: 37953359 PMCID: PMC10767981 DOI: 10.1093/nar/gkad1007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/14/2023] Open
Abstract
Vesiclepedia (http://www.microvesicles.org) is a free web-based compendium of DNA, RNA, proteins, lipids and metabolites that are detected or associated with extracellular vesicles (EVs) and extracellular particles (EPs). EVs are membranous vesicles that are secreted ubiquitously by cells from all domains of life from archaea to eukaryotes. In addition to EVs, it was reported recently that EPs like exomeres and supermeres are secreted by some mammalian cells. Both EVs and EPs contain proteins, nucleic acids, lipids and metabolites and has been proposed to be implicated in several key biological functions. Vesiclepedia catalogues proteins, DNA, RNA, lipids and metabolites from both published and unpublished studies. Currently, Vesiclepedia contains data obtained from 3533 EV studies, 50 550 RNA entries, 566 911 protein entries, 3839 lipid entries, 192 metabolite and 167 DNA entries. Quantitative data for 62 822 entries from 47 EV studies is available in Vesiclepedia. The datasets available in Vesiclepedia can be downloaded as tab-delimited files or accessible through the FunRich-based Vesiclepedia plugin.
Collapse
Affiliation(s)
- Sai V Chitti
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Sriram Gummadi
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Taeyoung Kang
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Sanjay Shahi
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Akbar L Marzan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Christina Nedeva
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Rahul Sanwlani
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Kyle Bramich
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Sarah Stewart
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Monika Petrovska
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Biswadeep Sen
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Alper Ozkan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Maria Akinfenwa
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Pamali Fonseka
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| |
Collapse
|
3
|
Anand S, Nedeva C, Chitti SV, Fonseka P, Kang T, Gangoda L, Tabassum NI, Abdirahman S, Arumugam TV, Putoczki TL, Kumar S, Mathivanan S. The E3 ubiquitin ligase NEDD4 regulates chemoresistance to 5-fluorouracil in colorectal cancer cells by altering JNK signalling. Cell Death Dis 2023; 14:828. [PMID: 38097550 PMCID: PMC10721789 DOI: 10.1038/s41419-023-06349-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 11/12/2023] [Accepted: 11/29/2023] [Indexed: 12/17/2023]
Abstract
Colorectal cancer (CRC) is the second leading cause of cancer deaths. Though chemotherapy is the main treatment option for advanced CRC, patients invariably acquire resistance to chemotherapeutic drugs and fail to respond to the therapy. Although understanding the mechanisms regulating chemoresistance has been a focus of intense research to manage this challenge, the pathways governing resistance to drugs are poorly understood. In this study, we provide evidence for the role of ubiquitin ligase NEDD4 in resistance developed against the most commonly used CRC chemotherapeutic drug 5-fluorouracil (5-FU). A marked reduction in NEDD4 protein abundance was observed in a panel of CRC cell lines and patient-derived xenograft samples that were resistant to 5-FU. Knockout of NEDD4 in CRC cells protected them from 5-FU-mediated apoptosis but not oxaliplatin or irinotecan. Furthermore, NEDD4 depletion in CRC cells reduced proliferation, colony-forming abilities and tumour growth in mice. Follow-up biochemical analysis highlighted the inhibition of the JNK signalling pathway in NEDD4-deficient cells. Treatment with the JNK activator hesperidin in NEDD4 knockout cells sensitised the CRC cells against 5-FU. Overall, we show that NEDD4 regulates cell proliferation, colony formation, tumour growth and 5-FU chemoresistance in CRC cells.
Collapse
Affiliation(s)
- Sushma Anand
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Christina Nedeva
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Sai V Chitti
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Pamali Fonseka
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Taeyoung Kang
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Lahiru Gangoda
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia
| | - Nishat I Tabassum
- Department of Microbiology, Anatomy, Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, Centre for Cardiovascular Biology and Disease Research, La Trobe University, Melbourne, Australia
| | - Suad Abdirahman
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, 3052, Australia
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3052, Australia
| | - Thiruma V Arumugam
- Department of Microbiology, Anatomy, Physiology and Pharmacology, School of Agriculture, Biomedicine and Environment, Centre for Cardiovascular Biology and Disease Research, La Trobe University, Melbourne, Australia
| | - Tracy L Putoczki
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, 3052, Australia
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia, Adelaide, SA, 5001, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, 3086, Australia.
| |
Collapse
|
4
|
Marzan AL, Chitti SV, Gummadi S, Kang T, Ang CS, Mathivanan S. Proteomics analysis of C2C12 myotubes treated with atrophy inducing cancer cell-derived factors. Proteomics 2023:e2300020. [PMID: 37882347 DOI: 10.1002/pmic.202300020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023]
Abstract
Cancer-associated cachexia is a wasting syndrome that results in dramatic loss of whole-body weight, predominantly due to loss of skeletal muscle mass. It has been established that cachexia inducing cancer cells secrete proteins and extracellular vesicles (EVs) that can induce muscle atrophy. Though several studies examined these cancer-cell derived factors, targeting some of these components have shown little or no clinical benefit. To develop new therapies, understanding of the dysregulated proteins and signaling pathways that regulate catabolic gene expression during muscle wasting is essential. Here, we sought to examine the effect of conditioned media (CM) that contain secreted factors and EVs from cachexia inducing C26 colon cancer cells on C2C12 myotubes using mass spectrometry-based label-free quantitative proteomics. We identified significant changes in the protein profile of C2C12 cells upon exposure to C26-derived CM. Functional enrichment analysis revealed enrichment of proteins associated with inflammation, mitochondrial dysfunction, muscle catabolism, ROS production, and ER stress in CM treated myotubes. Furthermore, strong downregulation in muscle structural integrity and development and/or regenerative pathways were observed. Together, these enriched proteins in atrophied muscle could be utilized as potential muscle wasting markers and the dysregulated biological processes could be employed for therapeutic benefit in cancer-induced muscle wasting.
Collapse
Affiliation(s)
- Akbar L Marzan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Sai V Chitti
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Sriram Gummadi
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Taeyoung Kang
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Ching-Seng Ang
- The Bio21 Institute of Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| |
Collapse
|
5
|
Ogunmuyiwa J, Niño I, Kang T, Shechtman KR, Balogun OD, Ashamalla H. Increasing Accrual of Racial and Ethnic Minorities in Breast Cancer Clinical Trials by Partnering with Community Hospitals. Int J Radiat Oncol Biol Phys 2023; 117:e45. [PMID: 37785448 DOI: 10.1016/j.ijrobp.2023.06.746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Clinical trials provide the highest level of evidence in evaluating the safety and efficacy of new radiation approaches for breast cancer. However, there is a significant lack of racial and ethnic diversity among participants who are enrolled. This discrepancy in research inclusion leads to limitations in applying clinical data, therapeutic indices, technique safety, and toxicity to a diverse patient population. A community-based approach, such as the inclusion of community hospitals in trial enrollment, has been shown to boost participation within these underserved populations. The aim of this study was to evaluate the rate of enrollment of racial and ethnic minorities in breast cancer clinical trials with the inclusion of community hospitals within an NYC hospital system. MATERIALS/METHODS Trial enrollment of breast cancer patients at 3 hospitals was retrospectively assessed. Patient demographics, including age, race, and ethnicity, were compared by enrollment setting. Eligible trials included prospective, randomized clinical trials assessing breast cancer irradiation. Participating hospitals included an academic hospital in Manhattan (MH), and 2 community hospitals in Brooklyn (BH) and Queens (QH). Collectively, these hospitals have a catchment area of 6.2 million, of which 35.2% are White, 19.7% are Asian, 18.3% are Black/African American (B/AA), and 21.2% are Hispanic/Latino (H/L). There is a wide demographic variety within this catchment area. BH serves neighborhoods with a B/AA population as high as 85% and QH serves neighborhoods with an Asian population as high as 54%. RESULTS From January to December 2022, 146 patients were enrolled in 4 breast cancer trials opened at MH (59.6%, n = 87), BH (28.8%, n = 42), and QH (11.6%, n = 17). The average age was 63.3 (SD = 12.1). Of all patients enrolled, 52.7% identified as White, 23.2% as B/AA, 13% as Asian, and 8.9% as H/L. Of the patients enrolled at MH, 64.4% identified as White, 12.6% as B/AA, 8% as Asian, and 8% as H/L. At BH, 50% identified as B/AA, 38% as White, 4.7% as Asian, and 11.9% as H/L. At QH, 58.8% identified as Asian, 29.4% as White, and 11.8% as B/AA. B/AA (OR = 4.41, 95% CI, 1.94-10.03; p<.01) and Asian (OR = 2.92, 95% CI, 1.07-7.93; p<.05) patients were more likely to be enrolled at a community hospital when compared to an academic hospital. There was no difference in enrollment rates between campuses for H/L patients (OR = 1.29, 95% CI, 0.41-4.06; p = .66). CONCLUSION Enrollment of participants from underrepresented racial and ethnic populations in clinical trials is critical to ensuring health equity. These findings suggest partnerships with community hospitals located in underserved populations can be a strategy to improve diversity among clinical trial participants. As it is well-documented that community hospitals can deliver high quality research with similar trial metrics to larger, academic hospitals, partnerships with community hospitals are a feasible way to reduce disparities in breast cancer research.
Collapse
Affiliation(s)
- J Ogunmuyiwa
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - I Niño
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - T Kang
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - K R Shechtman
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| | - O D Balogun
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY; Department of Radiation Oncology, Weill Cornell Medicine, New York, NY
| | - H Ashamalla
- New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY
| |
Collapse
|
6
|
Sanwlani R, Kang T, Gummadi S, Nedeva C, Ang CS, Mathivanan S. Bovine milk-derived extracellular vesicles enhance doxorubicin sensitivity in triple negative breast cancer cells by targeting metabolism and STAT signalling. Proteomics 2023; 23:e2200482. [PMID: 37376799 DOI: 10.1002/pmic.202200482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/29/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023]
Abstract
Metastatic triple-negative breast cancer (TNBC) has a low 5-year survival rate of below 30% with systemic chemotherapy being the most widely used treatment. Bovine milk-derived extracellular vesicles (MEVs) have been previously demonstrated to have anti-cancer attributes. In this study, we isolated bovine MEVs from commercial milk and characterised them according to MISEV guidelines. Bovine MEVs sensitised TNBC cells to doxorubicin, resulting in reduced metabolic potential and cell-viability. Label-free quantitative proteomics of cells treated with MEVs and/or doxorubicin suggested that combinatorial treatment depleted various pro-tumorigenic interferon-inducible gene products and proteins with metabolic function, previously identified as therapeutic targets in TNBC. Combinatorial treatment also led to reduced abundance of various STAT proteins and their downstream oncogenic targets with roles in cell-cycle and apoptosis. Taken together, this study highlights the ability of bovine MEVs to sensitise TNBC cells to standard-of-care therapeutic drug doxorubicin, paving the way for novel treatment regimens.
Collapse
Affiliation(s)
- Rahul Sanwlani
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Taeyoung Kang
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Sriram Gummadi
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Christina Nedeva
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Ching-Seng Ang
- The Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| |
Collapse
|
7
|
Chitti SV, Kang T, Fonseka P, Marzan AL, Stewart S, Shahi S, Bramich K, Ang CS, Pathan M, Gummadi S, Mathivanan S. Proteomic analysis of the small extracellular vesicles and soluble secretory proteins from cachexia inducing and non-inducing cancer cells. Proteomics 2023:e2100314. [PMID: 37309723 DOI: 10.1002/pmic.202100314] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 05/07/2023] [Accepted: 05/24/2023] [Indexed: 06/14/2023]
Abstract
Cancer cachexia is a wasting syndrome characterised by the loss of fat and/or muscle mass in advanced cancer patients. It has been well-established that cancer cells themselves can induce cachexia via the release of several pro-cachectic and pro-inflammatory factors. However, it is unclear how this process is regulated and the key cachexins that are involved. In this study, we validated C26 and EL4 as cachexic and non-cachexic cell models, respectively. Treatment of adipocytes and myotubes with C26 conditioned medium induced lipolysis and atrophy, respectively. We profiled soluble secreted proteins (secretome) as well as small extracellular vesicles (sEVs) released from cachexia-inducing (C26) and non-inducing (EL4) cancer cells by label-free quantitative proteomics. A total of 1268 and 1022 proteins were identified in the secretome of C26 and EL4, respectively. Furthermore, proteomic analysis of sEVs derived from C26 and EL4 cancer cells revealed a distinct difference in the protein cargo. Functional enrichment analysis using FunRich highlighted the enrichment of proteins that are implicated in biological processes such as muscle atrophy, lipolysis, and inflammation in both the secretome and sEVs derived from C26 cancer cells. Overall, our characterisation of the proteomic profiles of the secretory factors and sEVs from cachexia-inducing and non-inducing cancer cells provides insights into tumour factors that promote weight loss by mediating protein and lipid loss in various organs and tissues. Further investigation of these proteins may assist in highlighting potential therapeutic targets and biomarkers of cancer cachexia.
Collapse
Affiliation(s)
- Sai V Chitti
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Taeyoung Kang
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Pamali Fonseka
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Akbar L Marzan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Sarah Stewart
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Sanjay Shahi
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Kyle Bramich
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Ching-Seng Ang
- The Bio21 Institute of Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria, Australia
| | - Mohashin Pathan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Sriram Gummadi
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| |
Collapse
|
8
|
Loo L, Waller MA, Moreno CL, Cole AJ, Stella AO, Pop OT, Jochum AK, Ali OH, Denes CE, Hamoudi Z, Chung F, Aggarwal A, Low JKK, Patel K, Siddiquee R, Kang T, Mathivanan S, Mackay JP, Jochum W, Flatz L, Hesselson D, Turville S, Neely GG. Fibroblast-expressed LRRC15 is a receptor for SARS-CoV-2 spike and controls antiviral and antifibrotic transcriptional programs. PLoS Biol 2023; 21:e3001967. [PMID: 36757924 PMCID: PMC9910744 DOI: 10.1371/journal.pbio.3001967] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 12/16/2022] [Indexed: 02/10/2023] Open
Abstract
Although ACE2 is the primary receptor for Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection, a systematic assessment of host factors that regulate binding to SARS-CoV-2 spike protein has not been described. Here, we use whole-genome CRISPR activation to identify host factors controlling cellular interactions with SARS-CoV-2. Our top hit was a TLR-related cell surface receptor called leucine-rich repeat-containing protein 15 (LRRC15). LRRC15 expression was sufficient to promote SARS-CoV-2 spike binding where they form a cell surface complex. LRRC15 mRNA is expressed in human collagen-producing lung myofibroblasts and LRRC15 protein is induced in severe Coronavirus Disease 2019 (COVID-19) infection where it can be found lining the airways. Mechanistically, LRRC15 does not itself support SARS-CoV-2 infection, but fibroblasts expressing LRRC15 can suppress both pseudotyped and authentic SARS-CoV-2 infection in trans. Moreover, LRRC15 expression in fibroblasts suppresses collagen production and promotes expression of IFIT, OAS, and MX-family antiviral factors. Overall, LRRC15 is a novel SARS-CoV-2 spike-binding receptor that can help control viral load and regulate antiviral and antifibrotic transcriptional programs in the context of COVID-19 infection.
Collapse
Affiliation(s)
- Lipin Loo
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Matthew A. Waller
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Cesar L. Moreno
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Alexander J. Cole
- Centenary Institute and Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | | | - Oltin-Tiberiu Pop
- Institute for Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Ann-Kristin Jochum
- Institute for Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Institute for Pathology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Omar Hasan Ali
- Institute for Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Department of Medical Genetics, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Dermatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Christopher E. Denes
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Zina Hamoudi
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Felicity Chung
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Anupriya Aggarwal
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - Jason K. K. Low
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Karishma Patel
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Rezwan Siddiquee
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Taeyoung Kang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Joel P. Mackay
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Wolfram Jochum
- Institute for Pathology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Lukas Flatz
- Institute for Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Center for Dermatooncology, Department of Dermatology, Eberhard Karls University of Tübingen, Tübingen, Germany
| | - Daniel Hesselson
- Centenary Institute and Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Stuart Turville
- The Kirby Institute, University of New South Wales, New South Wales, Australia
| | - G. Gregory Neely
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
- * E-mail:
| |
Collapse
|
9
|
Chun J, Kang T, Seo JP, Jeong H, Kim M, Kim BS, Ahn M, Kim J, Shin T. Glycoconjugate-Specific Developmental Changes in the Horse Vomeronasal Organ. Cells Tissues Organs 2023; 213:147-160. [PMID: 36599327 DOI: 10.1159/000528883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 12/22/2022] [Indexed: 01/05/2023] Open
Abstract
The vomeronasal organ (VNO) is a tubular pheromone-sensing organ in which the lumen is covered with sensory and non-sensory epithelia. This study used immunohistochemistry and lectin histochemistry techniques to evaluate developmental changes, specifically of the glycoconjugate profile, in the horse VNO epithelium. Immunostaining analysis revealed PGP9.5 expression in some vomeronasal non-sensory epithelium (VNSE) cells and in the vomeronasal receptor cells of the vomeronasal sensory epithelium (VSE) in fetuses, young foals, and adult horses. Olfactory marker protein expression was exclusively localized in receptor cells of the VSE in fetuses, young foals, and adult horses and absent in VNSE. To identify the glycoconjugate type, lectin histochemistry was performed using 21 lectins. Semi-quantitative analysis revealed that the intensities of glycoconjugates labeled with WGA, DSL, LEL, and RCA120 were significantly higher in adult horse VSE than those in foal VSE, whereas the intensities of glycoconjugates labeled with LCA and PSA were significantly lower in adult horse VSE. The intensities of glycoconjugates labeled with s-WGA, WGA, BSL-II, DSL, LEL, STL, ConA, LCA, PSA, DBA, SBA, SJA, RCA120, jacalin, and ECL were significantly higher in adult horse VNSE than those in foal VNSE, whereas the intensity of glycoconjugates labeled with UEA-I was lower in adult horse VNSE. Histochemical analysis of each lectin revealed that various glycoconjugates in the VSE were present in the receptor, supporting, and basal cells of foals and adult horses. A similar pattern of lectin histochemistry was also observed in the VNSE of foals and adult horses. In conclusion, these results suggest that there is an increase in the level of N-acetylglucosamine (labeled by WGA, DSL, LEL) and galactose (labeled by RCA120) in horse VSE during postnatal development, implying that they may influence the function of VNO in adult horses.
Collapse
Affiliation(s)
- Jiyoon Chun
- Department of Veterinary Anatomy, College of Veterinary Medicine, Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
| | - Taeyoung Kang
- Department of Veterinary Obstetrics, College of Veterinary Medicine, Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
| | - Jong-Pil Seo
- Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
| | - Hyohoon Jeong
- Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
| | - Minhan Kim
- Veterinary Research Institute, Jeju Special Self-Governing Province, Jeju, Republic of Korea
| | - Byung Sun Kim
- Department of Equine Science, Cheju Halla University, Jeju, Republic of Korea
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University, Wonju, Republic of Korea
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan, Republic of Korea
| | - Taekyun Shin
- Department of Veterinary Anatomy, College of Veterinary Medicine, Veterinary Medical Research Institute, Jeju National University, Jeju, Republic of Korea
| |
Collapse
|
10
|
Kang T, Cho Y, Yuk KM, Yu CY, Choi SH, Byun KM. Fabrication and Characterization of Novel Silk Fiber-Optic SERS Sensor with Uniform Assembly of Gold Nanoparticles. Sensors (Basel) 2022; 22:9012. [PMID: 36433605 PMCID: PMC9692301 DOI: 10.3390/s22229012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Biocompatible optical fibers and waveguides are gaining attention as promising platforms for implantable biophotonic devices. Recently, the distinct properties of silk fibroin were extensively explored because of its unique advantages, including flexibility, process compatibility, long-term biosafety, and controllable biodegradability for in vitro and in vivo biomedical applications. In this study, we developed a novel silk fiber for a sensitive optical sensor based on surface-enhanced Raman spectroscopy (SERS). In contrast to conventional plasmonic nanostructures, which employ expensive and time-consuming fabrication processes, gold nanoparticles were uniformly patterned on the top surface of the fiber employing a simple and cost-effective convective self-assembly technique. The fabricated silk fiber-optic SERS probe presented a good performance in terms of detection limit, sensitivity, and linearity. In particular, the uniform pattern of gold nanoparticles contributed to a highly linear sensing feature compared to the commercial multi-mode fiber sample with an irregular and aggregated distribution of gold nanoparticles. Through further optimization, silk-based fiber-optic probes can function as useful tools for highly sensitive, cost-effective, and easily tailored biophotonic platforms, thereby offering new capabilities for future implantable SERS devices.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Yongjun Cho
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Kyeong Min Yuk
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Chan Yeong Yu
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Seung Ho Choi
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Kyung Min Byun
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| |
Collapse
|
11
|
Gummadi S, Kang T, Fonseka P, Chitti SV, Ang CS, Mathivanan S. Pep2Graph: A standalone tool to analyse proteolytic cleavages by proteases from gel-based mass spectrometry data. Proteomics 2022; 22:e2200147. [PMID: 35924633 DOI: 10.1002/pmic.202200147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/14/2022] [Accepted: 07/28/2022] [Indexed: 12/29/2022]
Abstract
Proteases are enzymes that regulate substrates via proteolytic activation and coordinate essential cellular functions including DNA replication, DNA transcription, cell proliferation, differentiation, migration and apoptosis. However, techniques to identify proteolytic events in a high-throughput manner is limited. PROtein TOpography and Migration Analysis Platform (PROTOMAP) is a technique that relies on mass spectrometry-based proteomics to globally identify the shifts in the in-gel migration of proteins and their corresponding fragments that are obtained by proteolysis. However, user-friendly software tool to analyse the proteomic data to identify proteolytic events is needed. Here, we report Pep2Graph, a user-friendly standalone tool that integrates peptide sequence information from in-gel proteomics and presents the data as two-dimensional peptographs with in-gel migration, sequence coverage and MS/MS spectra counts. Pep2Graph (http://www.mathivananlab.org/Pep2Graph) allows users to utilize in-gel proteomics data to study proteolytic events that may play a significant role in normal physiology and pathology.
Collapse
Affiliation(s)
- Sriram Gummadi
- Department of Biochemistry, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne, Victoria, Australia
| | - Taeyoung Kang
- Department of Biochemistry, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne, Victoria, Australia
| | - Pamali Fonseka
- Department of Biochemistry, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne, Victoria, Australia
| | - Sai V Chitti
- Department of Biochemistry, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne, Victoria, Australia
| | - Ching-Seng Ang
- The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry, La Trobe Institute for Molecular Sciences, La Trobe University, Melbourne, Victoria, Australia
| |
Collapse
|
12
|
Choi JH, Choi M, Kang T, Ho TS, Choi SH, Byun KM. Combination of Porous Silk Fibroin Substrate and Gold Nanocracks as a Novel SERS Platform for a High-Sensitivity Biosensor. Biosensors (Basel) 2021; 11:441. [PMID: 34821657 PMCID: PMC8615832 DOI: 10.3390/bios11110441] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/28/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
Novel concepts for developing a surface-enhanced Raman scattering (SERS) sensor based on biocompatible materials offer great potential in versatile applications, including wearable and in vivo monitoring of target analytes. Here, we report a highly sensitive SERS sensor consisting of a biocompatible silk fibroin substrate with a high porosity and gold nanocracks. Our silk-based SERS detection takes advantage of strong local field enhancement in the nanoscale crack regions induced by gold nanostructures evaporated on a porous silk substrate. The SERS performance of the proposed sensor is evaluated in terms of detection limit, sensitivity, and linearity. Compared to the performance of a counterpart SERS sensor with a thin gold film, SERS results using 4-ABT analytes present that a significant improvement in the detection limit and sensitivity by more than 4 times, and a good linearity and a wide dynamic range is achieved. More interestingly, overlap is integral, and a quantitative measure of the local field enhancement is highly consistent with the experimental SERS enhancement.
Collapse
Affiliation(s)
- Ji Hyeon Choi
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Korea;
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Korea;
| | - Munsik Choi
- Medical Device R&D Center, Seoul National University Bundang Hospital, Seongnam 13695, Korea;
| | - Taeyoung Kang
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Korea;
| | - Tien Son Ho
- Department of Biomedical Engineering, Yonsei University, 1 Yonseidae-gil, Wonju 26493, Korea;
| | - Seung Ho Choi
- Department of Biomedical Engineering, Yonsei University, 1 Yonseidae-gil, Wonju 26493, Korea;
| | - Kyung Min Byun
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Korea;
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Korea;
| |
Collapse
|
13
|
Samuel M, Fonseka P, Sanwlani R, Gangoda L, Chee SH, Keerthikumar S, Spurling A, Chitti SV, Zanker D, Ang CS, Atukorala I, Kang T, Shahi S, Marzan AL, Nedeva C, Vennin C, Lucas MC, Cheng L, Herrmann D, Pathan M, Chisanga D, Warren SC, Zhao K, Abraham N, Anand S, Boukouris S, Adda CG, Jiang L, Shekhar TM, Baschuk N, Hawkins CJ, Johnston AJ, Orian JM, Hoogenraad NJ, Poon IK, Hill AF, Jois M, Timpson P, Parker BS, Mathivanan S. Oral administration of bovine milk-derived extracellular vesicles induces senescence in the primary tumor but accelerates cancer metastasis. Nat Commun 2021; 12:3950. [PMID: 34168137 PMCID: PMC8225634 DOI: 10.1038/s41467-021-24273-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [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: 07/26/2019] [Accepted: 06/09/2021] [Indexed: 01/06/2023] Open
Abstract
The concept that extracellular vesicles (EVs) from the diet can be absorbed by the intestinal tract of the consuming organism, be bioavailable in various organs, and in-turn exert phenotypic changes is highly debatable. Here, we isolate EVs from both raw and commercial bovine milk and characterize them by electron microscopy, nanoparticle tracking analysis, western blotting, quantitative proteomics and small RNA sequencing analysis. Orally administered bovine milk-derived EVs survive the harsh degrading conditions of the gut, in mice, and is subsequently detected in multiple organs. Milk-derived EVs orally administered to mice implanted with colorectal and breast cancer cells reduce the primary tumor burden. Intriguingly, despite the reduction in primary tumor growth, milk-derived EVs accelerate metastasis in breast and pancreatic cancer mouse models. Proteomic and biochemical analysis reveal the induction of senescence and epithelial-to-mesenchymal transition in cancer cells upon treatment with milk-derived EVs. Timing of EV administration is critical as oral administration after resection of the primary tumor reverses the pro-metastatic effects of milk-derived EVs in breast cancer models. Taken together, our study provides context-based and opposing roles of milk-derived EVs as metastasis inducers and suppressors.
Collapse
Affiliation(s)
- Monisha Samuel
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, VIC, Australia
| | - Pamali Fonseka
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Rahul Sanwlani
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Lahiru Gangoda
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Sing Ho Chee
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Shivakumar Keerthikumar
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
- Cancer Research Division, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
| | - Alex Spurling
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Sai V Chitti
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Damien Zanker
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Ching-Seng Ang
- Bio21 Institute, University of Melbourne, Melbourne, VIC, Australia
| | - Ishara Atukorala
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Taeyoung Kang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Sanjay Shahi
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Akbar L Marzan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Christina Nedeva
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Claire Vennin
- Garvan Institute of Medical Research, The Kinghorn Cancer Centre & St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Morghan C Lucas
- Garvan Institute of Medical Research, The Kinghorn Cancer Centre & St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Lesley Cheng
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - David Herrmann
- Garvan Institute of Medical Research, The Kinghorn Cancer Centre & St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Mohashin Pathan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - David Chisanga
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Sean C Warren
- Garvan Institute of Medical Research, The Kinghorn Cancer Centre & St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Kening Zhao
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Nidhi Abraham
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Sushma Anand
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Stephanie Boukouris
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Christopher G Adda
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Lanzhou Jiang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Tanmay M Shekhar
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Nikola Baschuk
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Christine J Hawkins
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Amelia J Johnston
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Jacqueline Monique Orian
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Nicholas J Hoogenraad
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Ivan K Poon
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Andrew F Hill
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Markandeya Jois
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, La Trobe University, Bundoora, VIC, Australia
| | - Paul Timpson
- Garvan Institute of Medical Research, The Kinghorn Cancer Centre & St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Belinda S Parker
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, VIC, Australia.
| |
Collapse
|
14
|
Kim HJ, Lee HS, Kazmi SZ, Hann HJ, Kang T, Cha J, Choi S, Swan H, Kim H, Lee YS, Ahn HS. Familial risk for endometriosis and its interaction with smoking, age at menarche and body mass index: a population-based cohort study among siblings. BJOG 2021; 128:1938-1948. [PMID: 34028167 DOI: 10.1111/1471-0528.16769] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To quantify familial risk of endometriosis among full siblings and examine interactions between family history and smoking, age at menarche or body mass index (BMI). DESIGN, SETTING AND POPULATION Population-based nationwide cohort study. METHODS Using data from the Korean National Health Insurance and Screening Programme databases on kinship, healthcare utilisation, lifestyle and anthropometrics, we identified 2 109 288 women with full siblings and their environmental risk factors from 2002 to 2018. Familial risks were estimated using Cox proportional-hazards models, represented as incidence risk ratios (IRR) with 95% CI. Interaction between family history and smoking, age at menarche or BMI were assessed on an additive scale. MAIN OUTCOME MEASURES IRR of endometriosis among women with and without affected siblings. RESULTS From 19 195 women with affected siblings, 1126 developed endometriosis with an incidence of 35.45/10 000 person-years. Familial risk of endometriosis with versus without affected siblings was increased to IRR 2.75 (95% CI 2.25-3.36), and the highest risk was with affected twins (IRR 6.98; 95% CI 4.19-11.62). Women with both a family history and either smoking, early menarche or low BMI had a significantly higher risk of endometriosis compared with the general population and can be regarded as a high-risk group, the IRRs were 4.28 (95% CI 2.43-7.55), 3.47 (95% CI 2.82-4.26) and 3.09 (95% CI 2.68-3.56), respectively. Substantial effect modification of the associations was noted by smoking and early menarche, as their combined risk with family history exceeded the sum of their individual risks, which was also statistically significant. CONCLUSION Genetic factors are the primary contributor to the familial aggregation of endometriosis. Significant gene-environment interaction exists between family history and smoking or early menarche.
Collapse
Affiliation(s)
- H J Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H-S Lee
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - S Z Kazmi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H J Hann
- Medical Research Institute, College of Medicine, Ewha Womans University, Seoul, Korea
| | - T Kang
- Health and Wellness College, Sungshin Women's University, Seoul, Korea
| | - J Cha
- Department of Public Health, Korea University, Seoul, Korea
| | - S Choi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H Swan
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - H Kim
- Department of Obstetrics and Gynaecology, Seoul National University Hospital, Seoul, Korea
| | - Y S Lee
- Department of Health Informatics and Management, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - H S Ahn
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| |
Collapse
|
15
|
Abstract
Extracellular vesicles (EVs) refer to vesicles that are released by cells into the extracellular space. EVs mediate cell-to-cell communication via delivery of functional biomolecules between host and recipient cells. EVs can be categorised based on their mode of biogenesis and secretion and include apoptotic bodies, ectosomes or shedding microvesicles and exosomes among others. EVs have gained immense interest in recent years owing to their implications in pathophysiological conditions. Indeed, EVs have been proven useful in clinical applications as potential drug delivery vehicles and as source of diagnostic biomarkers. Despite the growing body of evidence supporting the clinical benefits, the processes involved in the biogenesis of EVs are poorly understood. Hence, it is critical to gain a deeper understanding of the underlying molecular machineries that ultimately govern the biogenesis and secretion of EVs. This chapter discusses the current knowledge on molecular mechanisms involved in the biogenesis of various subtypes of EVs.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Ishara Atukorala
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia.
| |
Collapse
|
16
|
Choi M, Kang T, Choi SH, Byun KM. Dual modal plasmonic substrates based on a convective self-assembly technique for enhancement in SERS and LSPR detection. Opt Express 2021; 29:6179-6187. [PMID: 33726144 DOI: 10.1364/oe.419051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/07/2021] [Indexed: 06/12/2023]
Abstract
In this study, surface-enhanced Raman scattering (SERS) scheme is combined with localized surface plasmon resonance (LSPR) detection on a thin gold film with stripe patterns of gold nanoparticles (GNPs) via convective self-assembly (CSA) method. The potential of dual modal plasmonic substrates was evaluated by binding 4-ABT and IgG analytes, respectively. SERS experiments presented not only a high sensitivity with a detection limit of 4.7 nM and an enhancement factor of 1.34 × 105, but an excellent reproducibility with relative standard deviation of 5.5%. It was found from plasmonic sensing experiments by immobilizing IgG onto GNP-mediated gold film that detection sensitivity was improved by more than 211%, compared with a conventional bare gold film. Our synergistic SERS-LSPR approach based on a simple and cost-effective CSA method could open a route for sensitive, reliable and reproducible dual modal detection to expand the application areas.
Collapse
|
17
|
Fonseka P, Pathan M, Chitti SV, Kang T, Mathivanan S. FunRich enables enrichment analysis of OMICs datasets. J Mol Biol 2020; 433:166747. [PMID: 33310018 DOI: 10.1016/j.jmb.2020.166747] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 01/17/2023]
Abstract
High-throughput methods to profile the genome, transcriptome, proteome and metabolome of various systems has become a routine in multiple research laboratories around the world. Hence, to analyse and interpret these heterogenous datasets user-friendly bioinformatics tools are needed. Here, we discuss FunRich tool that enables biologists to perform functional enrichment analysis on the generated datasets. Users can perform enrichment analysis with a variety of background databases and have complete control in updating or modifying the content in most of the databases. Specifically, users can download and update the background database from UniProt at any time thereby allowing a robust background database that can support annotations from >18 taxonomies. Users can create customizable Venn diagrams, pie charts, bar graphs and heatmaps of publication quality for their datasets using FunRich (http://www.funrich.org). Overall, FunRich tool is user-friendly and enables users to perform various analysis on their datasets with minimal or no aid from bioinformaticians.
Collapse
Affiliation(s)
- Pamali Fonseka
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Mohashin Pathan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Sai V Chitti
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Taeyoung Kang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia.
| |
Collapse
|
18
|
Choi Y, Oh H, Ahn M, Kang T, Chun J, Shin T, Kim J. Immunohistochemical analysis of periostin in the hearts of Lewis rats with experimental autoimmune myocarditis. J Vet Med Sci 2020; 82:1545-1550. [PMID: 32759575 PMCID: PMC7653304 DOI: 10.1292/jvms.20-0225] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Periostin plays a critical role in tissue regeneration and homeostasis. The aim of this study was to evaluate the changes in periostin levels in the hearts of rats with experimental autoimmune myocarditis (EAM). Western blot analysis revealed that the expression levels of periostin and alpha-smooth muscle actin were significantly increased at day 14 post-immunization. Immunohistochemical analysis indicated that periostin was expressed in macrophages and fibroblasts in the hearts of EAM-induced rats. In conclusion, these results suggest that increased periostin expression in macrophages and fibroblasts promotes cardiac fibrosis in EAM-induced rats, potentially by enhancing immune cell infiltration. Therefore, periostin should be further investigated as a candidate therapeutic target for myocarditis.
Collapse
Affiliation(s)
- Yuna Choi
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Hanseul Oh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University, Wonju 26339, Republic of Korea
| | - Taeyoung Kang
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Jiyoon Chun
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Taekyun Shin
- College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju 63243, Republic of Korea
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan 49267, Republic of Korea
| |
Collapse
|
19
|
Pathan M, Fonseka P, Chitti SV, Kang T, Sanwlani R, Van Deun J, Hendrix A, Mathivanan S. Vesiclepedia 2019: a compendium of RNA, proteins, lipids and metabolites in extracellular vesicles. Nucleic Acids Res 2020; 47:D516-D519. [PMID: 30395310 PMCID: PMC6323905 DOI: 10.1093/nar/gky1029] [Citation(s) in RCA: 444] [Impact Index Per Article: 111.0] [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: 08/15/2018] [Accepted: 10/30/2018] [Indexed: 11/30/2022] Open
Abstract
Extracellular vesicles (EVs) are membranous vesicles that are released by both prokaryotic and eukaryotic cells into the extracellular microenvironment. EVs can be categorised as exosomes, ectosomes or shedding microvesicles and apoptotic bodies based on the mode of biogenesis. EVs contain biologically active cargo of nucleic acids, proteins, lipids and metabolites that can be altered based on the precise state of the cell. Vesiclepedia (http://www.microvesicles.org) is a web-based compendium of RNA, proteins, lipids and metabolites that are identified in EVs from both published and unpublished studies. Currently, Vesiclepedia contains data obtained from 1254 EV studies, 38 146 RNA entries, 349 988 protein entries and 639 lipid/metabolite entries. Vesiclepedia is publicly available and allows users to query and download EV cargo based on different search criteria. The mode of EV isolation and characterization, the biophysical and molecular properties and EV-METRIC are listed in the database aiding biomedical scientists in assessing the quality of the EV preparation and the corresponding data obtained. In addition, FunRich-based Vesiclepedia plugin is incorporated aiding users in data analysis.
Collapse
Affiliation(s)
- Mohashin Pathan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Pamali Fonseka
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Sai V Chitti
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Taeyoung Kang
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Rahul Sanwlani
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Jan Van Deun
- Laboratory of Experimental Cancer Research, Department of Radiation Oncology and Experimental Cancer Research, Ghent University, Ghent, Belgium
| | - An Hendrix
- Laboratory of Experimental Cancer Research, Department of Radiation Oncology and Experimental Cancer Research, Ghent University, Ghent, Belgium
| | - Suresh Mathivanan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia
| |
Collapse
|
20
|
Jung KH, Kim HJ, Park W, Lim MJ, Kang T, Kang MJ, Kim KB, Ahn HS. Incidence, survival, and risk of cardiovascular events in adult inflammatory myopathies in South Korea: a nationwide population-based study. Scand J Rheumatol 2020; 49:323-331. [PMID: 32286141 DOI: 10.1080/03009742.2019.1707281] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Epidemiological studies on inflammatory myopathies (IMs) show widely variable results, and studies on Asians are lacking. Despite emerging interest in the cardiovascular disease (CVD) risk associated with IMs, the prevalence of CVD in IM patients and its impact on mortality remain unclear. We conducted a nationwide, population-based study on the incidence, mortality, and associated major CVD events of IMs in the Republic of Korea over 11 years. METHOD Using the nationwide, population-based National Health Insurance claims database and the Rare Intractable Disease registration programme, we estimated incidence, mortality, and CVD occurrence. Survival was examined using the Kaplan-Meier method. Mortality rate in IMs with CVD was analysed by Cox proportional hazards regression. RESULTS There were 3014 incident cases, 640 of whom died during the study period. The mean annual incidence was 7.16/106. Dermatomyositis (DM) and polymyositis (PM) had 5 year survival rates of 76.8% and 79.3%, respectively. Cardiovascular events occurred in 155 patients and 40.6% of IM patients with CVD died. Acute myocardial infarction in men had the highest risk of any CVD event in both DM [standardized incidence ratio (SIR) 4.2, 95% confidence interval (95% CI) 2.4-7.2] and PM (SIR 3.5, 95% CI 1.8-7.0). Haemorrhagic stroke had the highest hazard ratio (HR) in both DM (HR 2.31, 95% CI 1.13-4.70) and PM patients (HR 2.10, 95% CI 1.03-4.27) compared with the general population with CVD. CONCLUSION We found persistently low incidence, poor survival, and high major CVD incidence in IMs, and increased mortality in IMs with CVD.
Collapse
Affiliation(s)
- K H Jung
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Inha University , Incheon, Republic of Korea
| | - H J Kim
- Department of Preventive Medicine, College of Medicine, Korea University , Seoul, Republic of Korea
| | - W Park
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Inha University , Incheon, Republic of Korea
| | - M J Lim
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Inha University , Incheon, Republic of Korea
| | - T Kang
- Health Insurance Policy Research Institute, National Health Institute Service , Wonju, Republic of Korea
| | - M J Kang
- Department of Public Health, Graduate School, Korea University , Seoul, Republic of Korea
| | - K-B Kim
- Department of Public Health, Graduate School, Korea University , Seoul, Republic of Korea
| | - H S Ahn
- Department of Preventive Medicine, College of Medicine, Korea University , Seoul, Republic of Korea
| |
Collapse
|
21
|
Kang T, Qian S, Smith GS, Do C, Heller WT. Small-angle neutron scattering study of a dense microemulsion system formed with an ionic liquid. Soft Matter 2017; 13:7154-7160. [PMID: 28895963 DOI: 10.1039/c7sm01516j] [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] [Indexed: 06/07/2023]
Abstract
Mixtures of water, octane and 1-octanol with 1-tetradecyl-3-methylimidazolium chloride (C14MIM·Cl), often referred to as a surface active ionic liquid (SAIL), form water-in-oil microemulsions that have potential application as extraction media for various metal ions. Here, we present a structural study by small-angle neutron scattering (SANS) of dense microemulsions formed by surfactant-rich mixtures of these four compounds to understand how the SAIL can be used to tune the structures and properties of the microemulsions. The SANS experiments revealed that the microemulsions formed are composed of two phases, a water-in-oil microemulsion and a bicontinuous microemulsion, which becomes the dominant phase at high surfactant concentration. In this concentration regime, the surfactant film becomes more rigid, having a higher bending modulus that results from the parallel stacking of the imidazolium ring of the SAIL. At lower surfactant concentrations, the molecular packing of the SAIL does not change with the water content of the microemulsion. The results presented here correlate well with previously observed changes in the interaction between the IL cation and metal ions (Y. Tong, L. Han and Y. Yang, Ind. Eng. Chem. Res., 2012, 51, 16438-16443), while the capacity of the microemulsion system for water remains high enough for using the system as an extraction medium.
Collapse
Affiliation(s)
- T Kang
- Biology and Soft Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
| | | | | | | | | |
Collapse
|
22
|
Omer T, Mailhot T, Berona K, Swadron S, Kang T. 337 Accuracy of Landmark-Guided Glenohumeral Intra-Articular Injections in Patients With Anterior Shoulder Dislocations. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
23
|
Kang T, Berona K, Park E, Fredericks A, Chilstrom M, Mailhot T, Inaba K, Burner E. 355 Reliability of the Abdominal Exam in Blunt Trauma Patients With Altered Mental Status. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
24
|
Lee W, Song J, Son JH, Gutierrez MP, Kang T, Kim D, Lee LP. Solar optics-based active panel for solar energy storage and disinfection of greywater. Biomicrofluidics 2016; 10:054120. [PMID: 27822328 PMCID: PMC5085975 DOI: 10.1063/1.4965855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/10/2016] [Indexed: 06/02/2023]
Abstract
Smart city and innovative building strategies are becoming increasingly more necessary because advancing a sustainable building system is regarded as a promising solution to overcome the depleting water and energy. However, current sustainable building systems mainly focus on energy saving and miss a holistic integration of water regeneration and energy generation. Here, we present a theoretical study of a solar optics-based active panel (SOAP) that enables both solar energy storage and photothermal disinfection of greywater simultaneously. Solar collector efficiency of energy storage and disinfection rate of greywater have been investigated. Due to the light focusing by microlens, the solar collector efficiency is enhanced from 25% to 65%, compared to that without the microlens. The simulation of greywater sterilization shows that 100% disinfection can be accomplished by our SOAP for different types of bacteria including Escherichia coli. Numerical simulation reveals that our SOAP as a lab-on-a-wall system can resolve the water and energy problem in future sustainable building systems.
Collapse
Affiliation(s)
- W Lee
- Department of Mechanical Engineering, Sogang University , 04107 Seoul, South Korea
| | | | - J H Son
- Departments of Bioengineering, Electrical Engineering and Computer Science, and Biophysics Program, University of California , Berkeley, California 94270, USA
| | - M P Gutierrez
- Department of Architecture, University of California , Berkeley, California 94270, USA
| | - T Kang
- Department of Chemical and Biomolecular Engineering, Sogang University , 04107 Seoul, South Korea
| | - D Kim
- Department of Mechanical Engineering, Sogang University , 04107 Seoul, South Korea
| | - L P Lee
- Departments of Bioengineering, Electrical Engineering and Computer Science, and Biophysics Program, University of California , Berkeley, California 94270, USA
| |
Collapse
|
25
|
Park JE, Lee HS, Cho HD, Kang T. AB0978 The Association of Power Doppler Signal Grades with The Serum Inflammatory Marker Level. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
26
|
Choi JH, Park JE, Kim JY, Kang T. Non-Bacterial Thrombotic Endocarditis in a Patient with Rheumatoid Arthritis. Korean Circ J 2016; 46:425-8. [PMID: 27275182 PMCID: PMC4891610 DOI: 10.4070/kcj.2016.46.3.425] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 09/17/2015] [Accepted: 09/22/2015] [Indexed: 11/17/2022] Open
Abstract
Rheumatoid arthritis (RA) is frequently associated with various extra-joint complications. Although rare, thromboembolic complications are associated with high morbidity and mortality. We experienced a very rare case of nonbacterial thrombotic endocarditis (NBTE) and subsequent embolic stroke in a patient with RA. A 72-year-old male with a 15-year history of RA suddenly developed neurologic symptoms of vomiting and dizziness. Brain magnetic resonance imaging revealed recently developed multiple cerebellar and cerebral lacunar infarctions. Echocardiography showed a pulsating mitral valve vegetation involving the posterior cusp of the mitral valve leaflet, which was confirmed as NBTE. Immediate anti-coagulation therapy was started. The NBTE lesion disappeared in follow-up echocardiography after 4 weeks of anti-coagulation treatment.
Collapse
Affiliation(s)
- Jung-Hye Choi
- Department of Rheumatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jeong-Eun Park
- Department of Rheumatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jang-Young Kim
- Department of Cardiology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Taeyoung Kang
- Department of Rheumatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| |
Collapse
|
27
|
Kang T, Wakefield RJ, Emery P. Recent Trends of Ultrasound in Rheumatology. J Rheum Dis 2016. [DOI: 10.4078/jrd.2016.23.1.11] [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: 11/22/2022]
Affiliation(s)
- Taeyoung Kang
- Department of Rheumatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Richard J. Wakefield
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom
- NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Paul Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, Chapel Allerton Hospital, University of Leeds, United Kingdom
- NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| |
Collapse
|
28
|
Lee HS, Park JE, Nam SW, Shim KY, Kang T. Idiopathic Retroperitoneal Fibrosis Associated with Rheumatoid Arthritis in a Patient with Concomitant Chronic B Viral Hepatitis. J Rheum Dis 2015. [DOI: 10.4078/jrd.2015.22.2.123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hyang Sun Lee
- Department of Rheumatology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jeong Eun Park
- Department of Internal Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Seoung Wan Nam
- Department of Internal Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kwang Yong Shim
- Department of Haemato-Oncology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Taeyoung Kang
- Department of Rheumatology, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Korea
| |
Collapse
|
29
|
Park JE, Kim HS, Seong JH, Ha SS, Nam SW, Lee HS, Kim JS, Yang JW, Kang T. Knee Synovitis Mimicking a Septic Arthritis. J Rheum Dis 2015. [DOI: 10.4078/jrd.2015.22.1.39] [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: 11/22/2022]
Affiliation(s)
- Jeong-Eun Park
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hyun-Sik Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jae-Ho Seong
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Sung-Sam Ha
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Seoung-Wan Nam
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hyang-Sun Lee
- Division of Rheumatology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jae-Seok Kim
- Division of Nephrology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jae-Won Yang
- Division of Nephrology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Taeyoung Kang
- Division of Rheumatology, Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| |
Collapse
|
30
|
Abstract
AIM In collaboration with the Targeted Ultrasound Initiative (TUI), to conduct the first study in Korea to investigate current practices in ultrasound use among Korean rheumatologists. METHODS We translated the TUI Global Survey into Korean and added questions to better understand the specific challenges facing rheumatologists in Korea. To target as many rheumatologists in Korea as possible, we created an on-line version of this survey, which was conducted from March to April 2013. RESULTS Rheumatologists are in charge of ultrasound in many Korean hospitals. Rheumatologists in hospitals and private clinics use ultrasound to examine between one and five patients daily; they use ultrasound for diagnosis more than monitoring and receive compensation of about US$30-50 per patient. There are marked differences in the rates of ultrasound usage between rheumatologists who work in private practice compared with tertiary hospitals. Korean rheumatologists not currently using ultrasound in their practice appear eager to do so. CONCLUSION This survey provides important insights into the current status of ultrasound in rheumatology in Korea and highlights several priorities; specifically, greater provision of formal training, standardization of reporting and accrual of greater experience among ultrasound users. If these needs are addressed, all rheumatology departments in Korea are likely to use ultrasound or have access to it in the future.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Rheumatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Richard J Wakefield
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital, Chapeltown Road, Leeds, LS7 4SA, UK.,NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Paul Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital, Chapeltown Road, Leeds, LS7 4SA, UK.,NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| |
Collapse
|
31
|
Kang T, Abignano G, Lettieri G, Wakefield RJ, Emery P, Del Galdo F. Skin imaging in systemic sclerosis. Eur J Rheumatol 2014; 1:111-116. [PMID: 27708890 DOI: 10.5152/eurjrheumatol.2014.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 07/01/2014] [Accepted: 07/08/2014] [Indexed: 11/22/2022] Open
Abstract
Fibrotic involvement of the skin is a cardinal feature of systemic sclerosis (SSc). The extent of skin involvement is associated with internal organ involvement, coinciding with more severe disease course and poor prognosis. A palpation-based semi-quantitative score, the modified Rodnan skin score, is widely used for the assessment of skin involvement, but it is entailed by significant limitations. More objective approaches to measure skin involvement employing imaging have been explored continuously in the past decades and are currently advancing. Here, we review the use of different imaging techniques for the assessment of skin involvement in patients with SSc, focusing mainly on ultrasound, magnetic resonance imaging, and optical coherence tomography.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Rheumatology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Giuseppina Abignano
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, United Kingdom; NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Giovanni Lettieri
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, United Kingdom; NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom; Radiology Unit, Santa Maria Alla Gruccia Hospital, USL 8, Arezzo, Italy
| | - Richard J Wakefield
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, United Kingdom; NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Paul Emery
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, United Kingdom; NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Francesco Del Galdo
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, United Kingdom; NIHR Leeds Musculoskeletal Biomedical Research Unit, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| |
Collapse
|
32
|
Lee H, Park J, Park C, Kang T. FRI0242 Value of Ultrasound in Carpal Tunnel Syndrome: Useful Method for Treatment and Therapeutic Response after Steroid Injection. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
33
|
Kang T, Emery P, Wakefield RJ. A brief history of ultrasound in rheumatology: where we are now. Clin Exp Rheumatol 2014; 32:S7-S11. [PMID: 24529159] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
Ultrasound is gradually becoming established as an indispensable tool within the rheumatology clinical setting. Falling costs, improved educational opportunities, standardisation and developments in therapeutics have all led to the greater acceptability of the technique. This review will highlight how far ultrasound has come in a relatively short period of time by providing an overview of how it is being applied in rheumatology today.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Rheumatology, Yonsei Univeristy Wonju College of Medicine, Wonju, Republic of Korea.
| | | | | |
Collapse
|
34
|
Huang SY, Huang JJ, Kang T, Diao DF, Duan YZ. Coating NiTi archwires with diamond-like carbon films: reducing fluoride-induced corrosion and improving frictional properties. J Mater Sci Mater Med 2013; 24:2287-92. [PMID: 23793493 DOI: 10.1007/s10856-013-4988-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 06/14/2013] [Indexed: 05/27/2023]
Abstract
This study aims to coat diamond-like carbon (DLC) films onto nickel-titanium (NiTi) orthodontic archwires. The film protects against fluoride-induced corrosion and will improve orthodontic friction. 'Mirror-confinement-type electron cyclotron resonance plasma sputtering' was utilized to deposit DLC films onto NiTi archwires. The influence of a fluoride-containing environment on the surface topography and the friction force between the brackets and archwires were investigated. The results confirmed the superior nature of the DLC coating, with less surface roughness variation for DLC-coated archwires after immersion in a high fluoride ion environment. Friction tests also showed that applying a DLC coating significantly decreased the fretting wear and the coefficient of friction, both in ambient air and artificial saliva. Thus, DLC coatings are recommended to reduce fluoride-induced corrosion and improve orthodontic friction.
Collapse
Affiliation(s)
- S Y Huang
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, 145 West Changle Rd., Xi'an, 710032, China
| | | | | | | | | |
Collapse
|
35
|
Abstract
The use of musculoskeletal ultrasound in rheumatology clinical practice has rapidly increased over the past decade. Ultrasound has enabled rheumatologists to diagnose, prognosticate and monitor disease outcome. Although international standardization remains a concern still, the use of ultrasound in rheumatology is expected to grow further as costs fall and the opportunity to train in the technique improves. We present a review of value of ultrasound, focusing on major applications of ultrasound in rheumatologic diseases.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Rheumatology, Yonsei Univeristy Wonju College of Medicine, Wonju, Korea
- Division of Rheumatic and Musculoskeletal Disease and NIHR Leeds Musculoskeletal Biomedical Research Unit (LMBRU), University of Leeds, Leeds, UK
| | - Laura Horton
- Division of Rheumatic and Musculoskeletal Disease and NIHR Leeds Musculoskeletal Biomedical Research Unit (LMBRU), University of Leeds, Leeds, UK
| | - Paul Emery
- Division of Rheumatic and Musculoskeletal Disease and NIHR Leeds Musculoskeletal Biomedical Research Unit (LMBRU), University of Leeds, Leeds, UK
| | - Richard J. Wakefield
- Division of Rheumatic and Musculoskeletal Disease and NIHR Leeds Musculoskeletal Biomedical Research Unit (LMBRU), University of Leeds, Leeds, UK
| |
Collapse
|
36
|
Abstract
Musculoskeletal ultrasound is a powerful tool not only for evaluating joint and related structures but also for assessing disease activity. Ultrasound in rheumatology has rapidly evolved and been incorporated into routine clinical practice over the past decade. Moreover, technological development of equipment has made it more accessible for rheumatologists. We present a review of advances in ultrasound in rheumatology, focusing on major chronological developments.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Rheumatology, Yonsei Univeristy Wonju College of Medicine, Wonju, Republic of Korea
| | | | | | | | | |
Collapse
|
37
|
Kumar BM, Maeng GH, Lee YM, Lee JH, Jeon BG, Ock SA, Kang T, Rho GJ. Epigenetic modification of fetal fibroblasts improves developmental competency and gene expression in porcine cloned embryos. Vet Res Commun 2012; 37:19-28. [DOI: 10.1007/s11259-012-9542-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2012] [Indexed: 02/03/2023]
|
38
|
Bae S, Kim YG, Choi J, Hong J, Lee S, Kang T, Jeon H, Hong K, Kim E, Kwak A, Lee CK, Yoo B, Park YB, Song EY, Kim S. Elevated interleukin-32 expression in granulomatosis with polyangiitis. Rheumatology (Oxford) 2012; 51:1979-88. [DOI: 10.1093/rheumatology/kes163] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
|
39
|
Dong C, Wu Y, Wang Y, Wang C, Kang T, Rychahou PG, Chi YI, Evers BM, Zhou BP. Interaction with Suv39H1 is critical for Snail-mediated E-cadherin repression in breast cancer. Oncogene 2012; 32:1351-62. [PMID: 22562246 PMCID: PMC3703513 DOI: 10.1038/onc.2012.169] [Citation(s) in RCA: 154] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Expression of E-cadherin, a hallmark of epithelial-mesenchymal transition (EMT), is often lost due to promoter DNA methylation in basal-like breast cancer (BLBC), which contributes to the metastatic advantage of this disease; however, the underlying mechanism remains unclear. Here, we identified that Snail interacted with Suv39H1 (suppressor of variegation 3-9 homolog 1), a major methyltransferase responsible for H3K9me3 that intimately links to DNA methylation. We demonstrated that the SNAG domain of Snail and the SET domain of Suv39H1 were required for their mutual interactions. We found that H3K9me3 and DNA methylation on the E-cadherin promoter were higher in BLBC cell lines. We showed that Snail interacted with Suv39H1 and recruited it to the E-cadherin promoter for transcriptional repression. Knockdown of Suv39H1 restored E-cadherin expression by blocking H3K9me3 and DNA methylation and resulted in the inhibition of cell migration, invasion and metastasis of BLBC. Our study not only reveals a critical mechanism underlying the epigenetic regulation of EMT, but also paves a way for the development of new treatment strategies against this disease.
Collapse
Affiliation(s)
- C Dong
- Department of Molecular and Cellular Biochemistry, The University of Kentucky College of Medicine, Lexington, KY, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Yoo CK, Cho IC, Lee JB, Jung EJ, Lim HT, Han SH, Lee SS, Ko MS, Kang T, Hwang JH, Park YS, Park HB. QTL analysis of clinical-chemical traits in an F₂ intercross between Landrace and Korean native pigs. Physiol Genomics 2012; 44:657-68. [PMID: 22496488 DOI: 10.1152/physiolgenomics.00172.2011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Clinical-chemical traits are essential when examining the health status of individuals. The aim of this study was to identify quantitative trait loci (QTL) and the associated positional candidate genes affecting clinical-chemical traits in a reciprocal F(2) intercross between Landrace and Korean native pigs. Following an overnight fast, 25 serum phenotypes related to clinical-chemical traits (e.g., hepatic function parameters, renal function parameters, electrolyte, lipids) were measured in >970 F(2) progeny. All experimental samples were subjected to genotyping analysis using 165 microsatellite markers located across the genome. We identified eleven genome-wide significant QTL in six chromosomal regions (SSC 2, 7, 8, 13, 14, and 15) and 59 suggestive QTL in 17 chromosomal regions (SSC 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, and 18). We also observed significant effects of reciprocal crosses on some of the traits, which would seem to result from maternal effect, QTL on sex chromosomes, imprinted genes, or genetic difference in mitochondrial DNA. The role of genomic imprinting in clinical-chemical traits also was investigated. Genome-wide analysis revealed a significant evidence for an imprinted QTL in SSC4 affecting serum amylase levels. Additionally, a series of bivariate linkage analysis provided strong evidence that QTL in SSC 2, 13, 15, and 18 have a pleiotropic effect on clinical-chemical traits. In conclusion, our study detected both novel and previously reported QTL influencing clinical-chemical traits in pigs. The identified QTL together with the positional candidate genes identified here could play an important role in elucidating the genetic structure of clinical-chemical phenotype variation in humans and swine.
Collapse
Affiliation(s)
- Chae-Kyoung Yoo
- Animal Science Major, Division of Applied Life Science (Brain Korea 21 Program) Gyeongsang National University, Jinju, Korea
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Alvarez R, Chen C, Hung C, Kang T, Lee S, Wu T. Enhancement of the antigen-specific T cell immune responses and therapeutic antitumor effects generated by therapeutic HPV DNA vaccine by histone deacetylase inhibitor. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
42
|
Kang S, Kim S, Kang T, Yoon C, Ko S, Hur M, Lee H, Seol C. 528 Short-term Outcomes of Immediate Breast Reconstruction After Mastectomy Using Implant or Tissue Expander in Patients with Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70593-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
43
|
Kloepfer K, Vrtis R, Pappas T, Kang T, Lee W, Evans M, Gangnon R, Lemanske R, Gern J. Bacterial Detection In The Fall Is Associated With Increased Viral Respiratory Infections. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
44
|
Nguyen D, Alavi MV, Kim KY, Kang T, Scott RT, Noh YH, Lindsey JD, Wissinger B, Ellisman MH, Weinreb RN, Perkins GA, Ju WK. A new vicious cycle involving glutamate excitotoxicity, oxidative stress and mitochondrial dynamics. Cell Death Dis 2011; 2:e240. [PMID: 22158479 PMCID: PMC3252734 DOI: 10.1038/cddis.2011.117] [Citation(s) in RCA: 152] [Impact Index Per Article: 11.7] [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] [Indexed: 01/20/2023]
Abstract
Glutamate excitotoxicity leads to fragmented mitochondria in neurodegenerative diseases, mediated by nitric oxide and S-nitrosylation of dynamin-related protein 1, a mitochondrial outer membrane fission protein. Optic atrophy gene 1 (OPA1) is an inner membrane protein important for mitochondrial fusion. Autosomal dominant optic atrophy (ADOA), caused by mutations in OPA1, is a neurodegenerative disease affecting mainly retinal ganglion cells (RGCs). Here, we showed that OPA1 deficiency in an ADOA model influences N-methyl-D-aspartate (NMDA) receptor expression, which is involved in glutamate excitotoxicity and oxidative stress. Opa1(enu/+) mice show a slow progressive loss of RGCs, activation of astroglia and microglia, and pronounced mitochondrial fission in optic nerve heads as found by electron tomography. Expression of NMDA receptors (NR1, 2A, and 2B) in the retina of Opa1(enu/+) mice was significantly increased as determined by western blot and immunohistochemistry. Superoxide dismutase 2 (SOD2) expression was significantly decreased, the apoptotic pathway was activated as Bax was increased, and phosphorylated Bad and BcL-xL were decreased. Our results conclusively demonstrate that not only glutamate excitotoxicity and/or oxidative stress alters mitochondrial fission/fusion, but that an imbalance in mitochondrial fission/fusion in turn leads to NMDA receptor upregulation and oxidative stress. Therefore, we propose a new vicious cycle involved in neurodegeneration that includes glutamate excitotoxicity, oxidative stress, and mitochondrial dynamics.
Collapse
Affiliation(s)
- D Nguyen
- The Sophie and Arthur Brody Laboratory for Optic Nerve Biology, Hamilton Glaucoma Center, Department of Ophthalmology, University of California San Diego, La Jolla, CA, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Hwang E, Jung S, Kang T, Kwon D, Park K, Ryu S. UP-03.145 T2 Ureteral Tumor and Severe Hydronephrosis: Poor Prognostic Factors in Upper Urinary Tract Transitional Cell Carcinoma. Urology 2011. [DOI: 10.1016/j.urology.2011.07.1234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
46
|
Song HC, Cho S, Kang T, Hodgkiss WS, Preston JR. Long-range acoustic communication in deep water using a towed array. J Acoust Soc Am 2011; 129:EL71-EL75. [PMID: 21428470 DOI: 10.1121/1.3554707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In September 2010 a long-range acoustic communication (LRAC10) experiment was carried out in deep water off the Southern California Coast. The experiment involved two mobile components: (1) a source towed slowly at a speed of 2-3 knots at ∼75-m depth and (2) a horizontal line array towed at 3.5 knots at a depth of ∼200 m. Phase-coherent communication sequences were transmitted in the frequency band of 200-300 Hz at various ranges (100-700 km). Initial analysis of the LRAC10 data demonstrates that an information rate of 50 bits/s can be achieved over ∼550-km range using quadrature-phase shift-keying (QPSK) modulation and error-correction coding combined with beamforming.
Collapse
Affiliation(s)
- H C Song
- Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0238, USA.
| | | | | | | | | |
Collapse
|
47
|
Holstein GR, Friedrich VL, Kang T, Kukielka E, Martinelli GP. Direct projections from the caudal vestibular nuclei to the ventrolateral medulla in the rat. Neuroscience 2011; 175:104-17. [PMID: 21163335 PMCID: PMC3029471 DOI: 10.1016/j.neuroscience.2010.12.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [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: 08/04/2010] [Revised: 11/23/2010] [Accepted: 12/08/2010] [Indexed: 02/07/2023]
Abstract
While the basic pathways mediating vestibulo-ocular, -spinal, and -collic reflexes have been described in detail, little is known about vestibular projections to central autonomic sites. Previous studies have primarily focused on projections from the caudal vestibular region to solitary, vagal and parabrachial nuclei, but have noted a sparse innervation of the ventrolateral medulla. Since a direct pathway from the vestibular nuclei to the rostral ventrolateral medulla would provide a morphological substrate for rapid modifications in blood pressure, heart rate and respiration with changes in posture and locomotion, the present study examined anatomical evidence for this pathway using anterograde and retrograde tract tracing and immunofluorescence detection in brainstem sections of the rat medulla. The results provide anatomical evidence for direct pathways from the caudal vestibular nuclear complex to the rostral and caudal ventrolateral medullary regions. The projections are conveyed by fine and highly varicose axons that ramify bilaterally, with greater terminal densities present ipsilateral to the injection site and more rostrally in the ventrolateral medulla. In the rostral ventrolateral medulla, these processes are highly branched and extremely varicose, primarily directed toward the somata and proximal dendrites of non-catecholaminergic neurons, with minor projections to the distal dendrites of catecholaminergic cells. In the caudal ventrolateral medulla, the axons of vestibular nucleus neurons are more modestly branched with fewer varicosities, and their endings are contiguous with both the perikarya and dendrites of catecholamine-containing neurons. These data suggest that vestibular neurons preferentially target the rostral ventrolateral medulla, and can thereby provide a morphological basis for a short latency vestibulo-sympathetic pathway.
Collapse
Affiliation(s)
- G R Holstein
- Department of Neurology, Mount Sinai School of Medicine, New York, NY 10029, USA.
| | | | | | | | | |
Collapse
|
48
|
Xu S, Feng Z, Zhang M, Wu Y, Sang Y, Xu H, Lv X, Hu K, Cao J, Zhang R, Chen L, Liu M, Yun JP, Zeng YX, Kang T. hSSB1 binds and protects p21 from ubiquitin-mediated degradation and positively correlates with p21 in human hepatocellular carcinomas. Oncogene 2011; 30:2219-29. [PMID: 21242961 DOI: 10.1038/onc.2010.596] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Downregulation of hSSB1, a single-stranded DNA-binding protein, causes increased radiosensitivity, defective checkpoint activation and genomic instability. However, the mechanisms of hSSB1 function in these responses remain to be uncovered. Here, we present evidence that hSSB1 directly binds p21 and this interaction may prevent p21 from ubiquitin-mediated degradation. Furthermore, both promotion of the G1/S transition and abrogation of the G2/M checkpoints induced by hSSB1 knockdown are partially dependent on p21. Most importantly, hSSB1 and p21 levels are positively correlated in human hepatocellular carcinomas (HCC), as determined by immunostaining. Therefore, hSSB1 may positively modulate p21 to regulate cell cycle progression and DNA damage response, implicating hSSB1 as a novel, promising therapeutic target for cancers such as HCC.
Collapse
Affiliation(s)
- S Xu
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Ryu S, Kim S, Hwang E, Im C, Oh K, Jung S, Kang T, Kwon D, Park K. UP-1.26: The role of alpha 1(A) Adrenoceptor antagonist tamsulosin for the treatment of patients with lower urinary tract symptoms in women: the effect of nocturia and sleep quality. Urology 2010. [DOI: 10.1016/j.urology.2010.07.159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
50
|
Smith SD, Bolwell BJ, Rybicki LA, Kang T, Dean R, Advani A, Thakkar S, Sobecks R, Kalaycio M, Pohlman B, Sweetenham JW. Comparison of outcomes after auto-SCT for patients with relapsed diffuse large B-cell lymphoma according to previous therapy with rituximab. Bone Marrow Transplant 2010; 46:262-6. [DOI: 10.1038/bmt.2010.95] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|