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Shin K. Pipetting Hand, Together. ACS Synth Biol 2024; 13:693-694. [PMID: 38486499 DOI: 10.1021/acssynbio.4c00044] [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: 03/19/2024]
Affiliation(s)
- Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, South Korea
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Jeon S, Ros C, Huh E, Choi HK, Cho SG, Jung KH, Shin K. Real-time Visualization of Transcribed mRNA via Click Chemistry in a Liposomal Space. J Oleo Sci 2024; 73:573-581. [PMID: 38556290 DOI: 10.5650/jos.ess23198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024] Open
Abstract
We present a CuAAC (Copper-Catalyzed Azide-Alkyne Cycloaddition) reaction protocol designed for the visualization of mRNA. To achieve this, we synthesized stable mRNA molecules incorporating the modified nucleoside analog, EU, a crucial element for fluorophore attachment. Leveraging this modified mRNA, we successfully executed the CuAAC reaction, wherein the pro-fluorophore, coumarin, was conjugated to EU on the mRNA through our meticulously designed CuAAC process. This innovative approach resulted in the emission of fluorescence, enabling both precise quantification and visual observation of mRNA. Furthermore, we demonstrated the feasibility of concurrent mRNA synthesis and visualization by seamlessly integrating the CuAAC reaction mix into the mRNA transcription process. Additionally, our novel methodology opens avenues for prospective real-time monitoring of mRNA transcription within artificial cells. These advancements hold significant promise for expanding our comprehension of fundamental cellular processes and finding applications across diverse biological contexts in the future.
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Affiliation(s)
- Seonmin Jeon
- Department of Chemistry and Institute of Biological Interfaces, Sogang University
| | - Casana Ros
- Department of Chemistry and Institute of Biological Interfaces, Sogang University
| | - Eunjin Huh
- Department of Chemistry and Institute of Biological Interfaces, Sogang University
| | - Hyun Kyung Choi
- Department of Chemistry and Institute of Biological Interfaces, Sogang University
| | - Shin-Gyu Cho
- Department of Life Science and Institute of Biological Interfaces, Sogang University
| | - Kwang-Hwan Jung
- Department of Life Science and Institute of Biological Interfaces, Sogang University
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University
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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Ryder M, Sabarai A, Saccà C, Sachson R, Sadler E, Safiee NS, Sahani M, Saillant A, Saini J, Saito C, Saito S, Sakaguchi K, Sakai M, Salim H, Salviani C, Sammons E, Sampson A, Samson F, Sandercock P, Sanguila S, Santorelli G, Santoro D, Sarabu N, Saram T, Sardell R, Sasajima H, Sasaki T, Satko S, Sato A, Sato D, Sato H, Sato H, Sato J, Sato T, Sato Y, Satoh M, Sawada K, Schanz M, Scheidemantel F, Schemmelmann M, Schettler E, Schettler V, Schlieper GR, Schmidt C, Schmidt G, Schmidt U, Schmidt-Gurtler H, Schmude M, Schneider A, Schneider I, Schneider-Danwitz C, Schomig M, Schramm T, Schreiber A, Schricker S, Schroppel B, Schulte-Kemna L, Schulz E, Schumacher B, Schuster A, Schwab A, Scolari F, Scott A, Seeger W, Seeger W, Segal M, Seifert L, Seifert M, Sekiya M, Sellars R, Seman MR, Shah S, Shah S, Shainberg L, Shanmuganathan M, Shao F, Sharma K, Sharpe C, Sheikh-Ali M, Sheldon J, Shenton C, Shepherd A, Shepperd M, Sheridan R, Sheriff Z, Shibata Y, Shigehara T, Shikata K, Shimamura K, Shimano H, Shimizu Y, Shimoda H, Shin K, Shivashankar G, Shojima N, Silva R, Sim CSB, Simmons K, Sinha S, Sitter T, Sivanandam S, Skipper M, Sloan K, Sloan L, Smith R, Smyth J, Sobande T, Sobata M, Somalanka S, Song X, Sonntag F, Sood B, Sor SY, Soufer J, Sparks H, Spatoliatore G, Spinola T, Squyres S, Srivastava A, Stanfield J, Staplin N, Staylor K, Steele A, Steen O, Steffl D, Stegbauer J, Stellbrink C, Stellbrink E, Stevens W, Stevenson A, Stewart-Ray V, Stickley J, Stoffler D, Stratmann B, Streitenberger S, Strutz F, Stubbs J, Stumpf J, Suazo N, Suchinda P, Suckling R, Sudin A, Sugamori K, Sugawara H, Sugawara K, Sugimoto D, Sugiyama H, Sugiyama H, Sugiyama T, Sullivan M, Sumi M, Suresh N, Sutton D, Suzuki H, Suzuki R, Suzuki Y, Suzuki Y, Suzuki Y, Swanson E, Swift P, Syed S, Szerlip H, Taal M, Taddeo M, Tailor C, Tajima K, Takagi M, Takahashi K, Takahashi K, Takahashi M, Takahashi T, Takahira E, Takai T, Takaoka M, Takeoka J, Takesada A, Takezawa M, Talbot M, Taliercio J, Talsania T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Tror S, Jeon S, Nguyen HT, Huh E, Shin K. A Self-Regenerating Artificial Cell, that is One Step Closer to Living Cells: Challenges and Perspectives. Small Methods 2023; 7:e2300182. [PMID: 37246263 DOI: 10.1002/smtd.202300182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/29/2023] [Indexed: 05/30/2023]
Abstract
Controllable, self-regenerating artificial cells (SRACs) can be a vital advancement in the field of synthetic biology, which seeks to create living cells by recombining various biological molecules in the lab. This represents, more importantly, the first step on a long journey toward creating reproductive cells from rather fragmentary biochemical mimics. However, it is still a difficult task to replicate the complex processes involved in cell regeneration, such as genetic material replication and cell membrane division, in artificially created spaces. This review highlights recent advances in the field of controllable, SRACs and the strategies to achieve the goal of creating such cells. Self-regenerating cells start by replicating DNA and transferring it to a location where proteins can be synthesized. Functional but essential proteins must be synthesized for sustained energy generation and survival needs and function in the same liposomal space. Finally, self-division and repeated cycling lead to autonomous, self-regenerating cells. The pursuit of controllable, SRACs will enable authors to make bold advances in understanding life at the cellular level, ultimately providing an opportunity to use this knowledge to understand the nature of life.
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Affiliation(s)
- Seangly Tror
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - SeonMin Jeon
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Huong Thanh Nguyen
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Eunjin Huh
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
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Ryu SR, Suh J, Kim H, Shin K. The surface and internal features of pubic hair: A comparative study with those of scalp hair. Exp Dermatol 2023; 32:1509-1520. [PMID: 37317710 DOI: 10.1111/exd.14855] [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: 11/25/2022] [Revised: 05/14/2023] [Accepted: 05/20/2023] [Indexed: 06/16/2023]
Abstract
Although pubic hair has been a subject of public interest, little is known about its structure or characteristics beyond its curly and coarse appearance. In this study, we investigated the surface and internal features of pubic hair from Korean males and compared them to those of scalp hair from the same donors. Our findings indicate that the cuticle layer of pubic hair has a greater number of scales than that of scalp hair, resulting in a thicker cuticle layer overall. Fourier-transform infrared (FT-IR) spectroscopy analysis showed that the protein in the cortex layer of pubic hair was less affected by exposure to urine or ammonia than the protein in the cortex layer of scalp hair. This suggests that the cuticle layer of pubic hair, which is thicker and composed of more scales, acts as a physical barrier that protects the hair's internal structure. Furthermore, we observed that the secondary and tertiary structures of keratin in the pubic hair cuticle layer are essentially different from those in scalp hair. Based on these findings, we hypothesize that the thickened cuticle layer in pubic hair may have evolved as a defence mechanism against chemical damage from urine, urea and ammonia.
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Affiliation(s)
- Soo Ryeon Ryu
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Jungwoo Suh
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Hyeyoung Kim
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
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Naorungroj S, Srisomwat C, Khamcharoen W, Jampasa S, Pasomsub E, Shin K, Vilaivan T, Chailapakul O. Sequential Flow Controllable Microfluidic Device for G-Quadruplex DNAzyme-Based Electrochemical Detection of SARS-CoV-2 Using a Pyrrolidinyl Peptide Nucleic Acid. Anal Chem 2023; 95:12794-12801. [PMID: 37590190 DOI: 10.1021/acs.analchem.3c01758] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been a significant health issue globally. Point-of-care (POC) testing that can offer a rapid and accurate diagnosis of SARS-CoV-2 at the early stage of infection is highly desirable to constrain this outbreak, especially in resource-limited settings. Herein, we present a G-quadruplex DNAzyme-based electrochemical assay that is integrated with a sequential flow controllable microfluidic device for the detection of SARS-CoV-2 cDNA. According to the detection principle, a pyrrolidinyl peptide nucleic acid probe is immobilized on a screen-printed graphene electrode for capturing SARS-CoV-2 DNA. The captured DNA subsequently hybridizes with another DNA probe that carries a G-quadruplex DNAzyme as the signaling unit. The G-quadruplex DNAzyme catalyzes the H2O2-mediated oxidation of hydroquinone to benzoquinone that can be detected using square-wave voltammetry to give a signal that corresponds to the target DNA concentration. The assay exhibited high selectivity for SARS-CoV-2 DNA and showed a good experimental detection limit at 30 pM. To enable automation, the DNAzyme-based assay was combined with a capillary-driven microfluidic device featuring a burst valve technology to allow sequential sample and reagent delivery as well as the DNA target hybridization and enzymatic reaction to be operated in a precisely controlled fashion. The developed microfluidic device was successfully applied for the detection of SARS-CoV-2 from nasopharyngeal swab samples. The results were in good agreement with the standard RT-PCR method and could be performed within 20 min. Thus, this platform offers desirable characteristics that make it an alternative POC tool for COVID-19 diagnosis.
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Affiliation(s)
- Sarida Naorungroj
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Chawin Srisomwat
- Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani 12121, Thailand
| | - Wisarut Khamcharoen
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Sakda Jampasa
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Ekawat Pasomsub
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Republic of Korea
| | - Tirayut Vilaivan
- Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
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Ratri MC, Suh J, Ryu J, Chung BG, Shin K. Cover Image, Volume 140, Issue 16. J Appl Polym Sci 2023. [DOI: 10.1002/app.53865] [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: 03/15/2023]
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Tsutsui T, Fujiwara T, Matsumoto Y, Kimura A, Kanahori M, Arisumi S, Oyamada A, Ohishi M, Ikuta K, Tsuchiya K, Tayama N, Tomari S, Miyahara H, Mae T, Hara T, Saito T, Arizono T, Kaji K, Mawatari T, Fujiwara M, Takasaki M, Shin K, Ninomiya K, Nakaie K, Antoku Y, Iwamoto Y, Nakashima Y. Geriatric nutritional risk index as the prognostic factor in older patients with fragility hip fractures. Osteoporos Int 2023:10.1007/s00198-023-06753-3. [PMID: 37067545 DOI: 10.1007/s00198-023-06753-3] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/06/2023] [Indexed: 04/18/2023]
Abstract
This study investigated the long-term survival and incidence of secondary fractures after fragility hip fractures. The 5-year survival rate was 62%, and the mortality risk was seen in patients with GNRI < 92. The 5-year incidence of secondary fracture was 22%, which was significantly higher in patients with a BMI < 20. BACKGROUND Malnutrition negatively influences the postoperative survival of patients with fragility hip fractures (FHFs); however, little is known about their association over the long term. OBJECTIVE This study evaluated the ability of the geriatric nutritional risk index (GNRI) as a risk factor for long-term mortality after FHFs. METHODS This study included 623 Japanese patients with FHFs over the age of 60 years. We prospectively collected data on admission and during hospitalization and assessed the patients' conditions after discharge through a questionnaire. We examined the long-term mortality and the incidence of secondary FHFs and assessed the prognostic factors. RESULTS The mean observation period was 4.0 years (range 0-7 years). The average age at the time of admission was 82 years (range 60-101 years). The overall survival after FHFs (1 year, 91%; 5 years, 62%) and the incidence of secondary FHFs were high (1 year, 4%; 5 years, 22%). The multivariate Cox proportional hazard analysis revealed the risk factors for mortality as older age (hazard ratio [HR] 1.04), male sex (HR 1.96), lower GNRI score (HR 0.96), comorbidities (malignancy, HR 2.51; ischemic heart disease, HR 2.24; revised Hasegawa dementia scale ≤ 20, HR 1.64), no use of active vitamin D3 on admission (HR 0.46), and a lower Barthel index (BI) (on admission, HR 1.00; at discharge, HR 0.99). The GNRI scores were divided into four risk categories: major risk (GNRI, < 82), moderate risk (82-91), low risk (92-98), and no risk (> 98). Patients at major and moderate risks of GNRI had a significantly lower overall survival rate (p < 0.001). Lower body mass index (BMI) was also identified as a prognostic factor for secondary FHFs (HR 0.88 [p = 0.004]). CONCLUSIONS We showed that older age, male sex, a lower GNRI score, comorbidities, and a lower BI are risk factors for mortality following FHFs. GNRI is a novel and simple predictor of long-term survival after FHFs.
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Affiliation(s)
- T Tsutsui
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - T Fujiwara
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Y Matsumoto
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - A Kimura
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - M Kanahori
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - S Arisumi
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - A Oyamada
- Department of Orthopaedic Surgery, Saga Handicapped Children's Hospital, Saga, Japan
| | - M Ohishi
- Department of Orthopaedic Surgery, Chihaya Hospital, Fukuoka, Japan
| | - K Ikuta
- Department of Orthopaedic Surgery, Karatsu Red Cross Hospital, Saga, Japan
| | - K Tsuchiya
- Department of Orthopaedic Surgery, Japan Community Healthcare Organization, Kyushu Hospital, Fukuoka, Japan
| | - N Tayama
- Department of Orthopaedic Surgery, Steel Memorial Yawata Hospital, Fukuoka, Japan
| | - S Tomari
- Department of Orthopaedic Surgery, Japanese Red Cross Fukuoka Hospital, Fukuoka, Japan
| | - H Miyahara
- Department of Orthopaedic Surgery, National Hospital Organization Kyushu Medical Centre, Fukuoka, Japan
| | - T Mae
- Department of Orthopaedic Surgery, Saga-Ken Medical Centre Koseikan, Saga, Japan
| | - T Hara
- Department of Orthopaedic Surgery, Aso Iizuka Hospital, Fukuoka, Japan
| | - T Saito
- Department of Orthopaedic Surgery, Fukuoka City Hospital, Fukuoka, Japan
| | - T Arizono
- Department of Orthopaedic Surgery, Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Fukuoka, Japan
| | - K Kaji
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Fukuoka, Japan
| | - T Mawatari
- Department of Orthopaedic Surgery, Hamanomachi Hospital, Fukuoka, Japan
| | - M Fujiwara
- Department of Orthopaedic Surgery, Sada Hospital, Fukuoka, Japan
| | - M Takasaki
- Department of Orthopaedic Surgery, Harasanshin Hospital, Fukuoka, Japan
| | - K Shin
- Department of Orthopaedic Surgery, Saiseikai Yahata General Hospital, Fukuoka, Japan
| | - K Ninomiya
- Department of Orthopaedic Surgery, Koga Hospital 21, Fukuoka, Japan
| | - K Nakaie
- Department of Orthopaedic Surgery, National Hospital Organization Fukuoka-Higashi Medical Centre, Fukuoka, Japan
| | - Y Antoku
- Faculty of Medicine, Hospital Informatic Centre, Oita University, Oita, Japan
| | - Y Iwamoto
- Department of Orthopaedic Surgery, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Y Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Park H, Wang W, Min SH, Ren Y, Shin K, Han X. Artificial organelles for sustainable chemical energy conversion and production in artificial cells: Artificial mitochondrion and chloroplasts. Biophys Rev (Melville) 2023; 4:011311. [PMID: 38510162 PMCID: PMC10903398 DOI: 10.1063/5.0131071] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 02/17/2023] [Indexed: 03/22/2024]
Abstract
Sustainable energy conversion modules are the main challenges for building complex reaction cascades in artificial cells. Recent advances in biotechnology have enabled this sustainable energy supply, especially the adenosine triphosphate (ATP), by mimicking the organelles, which are the core structures for energy conversion in living cells. Three components are mainly shared by the artificial organelles: the membrane compartment separating the inner and outer parts, membrane proteins for proton translocation, and the molecular rotary machine for ATP synthesis. Depending on the initiation factors, they are further categorized into artificial mitochondrion and artificial chloroplasts, which use chemical nutrients for oxidative phosphorylation and light for photosynthesis, respectively. In this review, we summarize the essential components needed for artificial organelles and then review the recent progress on two different artificial organelles. Recent strategies, purified and identified proteins, and working principles are discussed. With more study on the artificial mitochondrion and artificial chloroplasts, they are expected to be very powerful tools, allowing us to achieve complex cascading reactions in artificial cells, like the ones that happen in real cells.
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Affiliation(s)
- Hyun Park
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, South Korea
| | - Weichen Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Seo Hyeon Min
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, South Korea
| | - Yongshuo Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, South Korea
| | - Xiaojun Han
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
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Ratri MC, Suh J, Ryu J, Chung BG, Shin K. Formulation of three‐dimensional, photo‐responsive printing ink: Gold nanorod‐hydrogel nanocomposites and their four‐dimensional structures that respond quickly to stimuli. J Appl Polym Sci 2023. [DOI: 10.1002/app.53799] [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: 03/02/2023]
Affiliation(s)
- Monica C. Ratri
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul South Korea
- Chemistry Education Study Program Sanata Dharma University Yogyakarta Indonesia
| | - Jungwoo Suh
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul South Korea
| | - Jungju Ryu
- Research Institute for Convergence of Basic Science Hanyang University Seoul South Korea
| | - Bong Geun Chung
- Department of Mechanical Engineering Sogang University Seoul South Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul South Korea
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Park S, Kim IH, Lee M, Shin K, Hong T. 116P Clinical significance of serum-derived exosomal PD-L1 expression in patients with advanced pancreatic cancer. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Setiawati A, Jeong S, Brillian AI, Lee SH, Shim JG, Jung KH, Shin K. Fabrication of a Tailored, Hybrid Extracellular Matrix Composite. Macromol Biosci 2022; 22:e2200106. [PMID: 35765216 DOI: 10.1002/mabi.202200106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/24/2022] [Indexed: 11/10/2022]
Abstract
The extracellular matrix (ECM) is a network of connective fibers that supports cells living in their surroundings. Native ECM, generated by the secretory products of each tissue's resident cells, has a unique architecture with different protein composition depending on the tissue. Therefore, it is very difficult to artificially design in vivo architecture in tissue engineering. In this study, we fabricated a hybrid ECM scaffold from the basic structure of fibroblast-derived cellular ECMs by adding major ECM components of fibronectin (FN) and collagen (COL I) externally. It was confirmed that while maintaining the basic structure of the native ECM, major protein components can be regulated. Then, decellularization was performed to prepare hybrid ECM scaffolds with various protein compositions and we demonstrated that a liver-mimicking fibronectin (FN)-rich hybrid ECM promoted successful settling of H4IIE rat hepatoma cells. We believe that our method holds promise for the fabrication of scaffolds that provide a tailored cellular microenvironment for specific organs and serve as novel pathways for the replacement or regeneration of specific organ tissues. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea.,Department of Life Science, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea.,Faculty of Pharmacy, Paingan, Maguwoharjo, Depok, Sanata Dharma University, Sleman, Yogyakarta, 55284, Indonesia
| | - Sungwoo Jeong
- Department of Chemistry and Institute of Biological Interfaces, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Albertus Ivan Brillian
- Department of Chemistry and Institute of Biological Interfaces, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Sang Ho Lee
- Department of Chemistry and Institute of Biological Interfaces, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Jin-Gon Shim
- Department of Life Science, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Kwang-Hwan Jung
- Department of Life Science, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, 35-Baekbeom-ro, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
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Cheng IT, So H, Leung YY, Chiowchanwisawakit P, Angkodjojo S, Saeed MA, Shin K, Goyal M, Haroon M, Hammoudeh M, Subramanian N, Chung HY, Wei JCC, Kishimoto M, Tam LS. AB0761 Are we treating-to-target in spondyloarthritis (SpA)? A cross sectional analysis from the Asia Pacific League of Associations for Rheumatology (APLAR) SpA Registry. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundData on the extent of treat-to-target (T2T) recommendations application in SpA patients across Asia Pacific region is lacking. APLAR SpA Registry aimed to assess the utility of T2T on long term clinical outcomes, and to improve disease management and inform health care policy.ObjectivesTo provide a snapshot of the registry including demographics, disease activity and medication use.MethodsPatients fulfill the CASPAR 2006 for psoriatic arthritis (PsA) and 2009 ASAS criteria for axial spondylitis (AxSpA) were recruited. This cross sectional analysis included the first 188 patients recruited across 7 Asia Pacific regions (Hong Kong, Singapore, Korea, Thailand, India, Qatar & Pakistan).Results83 patients PsA and 115 AxSpA patients were included. They had moderate inflammation (DAPSA: 19.61±14.29, ASDAS: 2.32±1.07). Majority of PsA patients received conventional synthetic disease-modifying drug (csDMARDs, 81%) with relatively low prevalence of biologic DMARDs (bDMARDs) (24%). Most AxSpA patients used NSAIDs (79%) while nearly half of them received bDMARDs (49%). Other details listed in Table 1. Prevalence of bDMARDs use in our registry was lower than that from the USA (Corrona PsA Registry, 59%), Turkey & Canada (PsArt-ID, 40%) and the Netherlands AxSpA registry (56%) (1-3). Regarding T2T, 28% and 44% of PsA patient achieved minimal disease activity (MDA) and Disease Activity in Psoriatic Arthritis low disease activity (DAPSA LDA) respectively. The proportion of patients achieving target in other cohorts were 46% for MDA (PsArt-ID) and 46% for DAPSA LDA (Corrona) (1, 2). 37% and 47% of AxSpA patient achieved Bath Ankylosing Spondylitis Disease Activity Index (BASDAI)<4 and Ankylosing Spondylitis Disease Activity Score (ASDAS) LDA. Proportion of patients achieving ASDAS LDA were similar to the Netherlands registry for patients with ASDAS LDA or BASDAI<4 (Figure 1A)(3). Patient on bDMARD were more likely to achieve treatment target (Figure 1B). There were no significant difference between socio-economic status and disease features between bDMARD user and non-user.Table 1.Demographics, clinical features and disease activity of patientsPsA (n=83)AxSpA (n=115)Age50.012.836.512.4Male n, %4251%8583%Asian n, %83100%10196%Disease duration, years7.17.35.27.6Any sacroiliitis n, %10299%HLA B27, positive n, %9189%Duration of early morning stiffness, min30392529Tender joint count7901Swollen joint count3400No. of dactylitis digit1100PASI4.05.0SPRACC1201BASDAI2.82.0ESR, mm/h31262016CRP, mg/L10151127HAQ-DI0.610.610.390.51DAPSA19.6114.29ASDAS CRP2.321.07Data given in mean SD unless stated. No. of case from Hong Kong 40; Singapore 46; Korea 24; Thailand 20, India 15; Qatar 10; Pakistan 33; HLA - human leucucyte antigen; PASI - psoriasis area and severity index; SPRACC - Spondyloarthritis Research Consortium of Canada Enthesitis Index; BASDAI - Bath Ankylosing Spondylitis Disease Activity Index; ESR - erythrocyte sedimentation rate; CRP - C-reactive protein; HAQ-DI - Health assessment questionnaire disability index; DAPSA - Disease activity in Psoriatic Arthritis; ASDAS - Ankylosing Spondylitis Disease Activity ScoreFigure 1.(A) Achievement of LDA in APLAR SpA registry and other registry and (B) use of bDMARDs among patients in APLAR SpA registry with or without achieving LDAConclusionPatient using bDMARDs were more likely to achieve treatment target. We expect that when T2T is widely applied, better outcomes will be reported in future.References[1]Bakirci, S., et al. (2019). “What are the main barriers to achieve minimal disease activity in psoriatic arthritis in real life?” Clin Exp Rheumatol37(5): 808-812.[2]Beckers, E., et al. (2021). “Treat-to-target in axial spondyloarthritis: an observational study in daily practice.” Rheumatology (Oxford).[3]Ogdie, A., et al. (2021). “Effect of Multidomain Disease Presentations on Patients With Psoriatic Arthritis in the Corrona Psoriatic Arthritis/Spondyloarthritis Registry.” J Rheumatol48(5): 698-706.Disclosure of InterestsIsaac T. Cheng: None declared, Ho SO: None declared, Ying Ying Leung Speakers bureau: received honorarium/ speaker fee from AbbVie, DKSH, Janssen, Novartis and Pfizer., Praveena Chiowchanwisawakit: None declared, Stanley Angkodjojo Speakers bureau: Boehringer Ingelheim Singapore in Nov 2021, Consultant of: Abbvie (Singapore), DKSH (Singapore) in 2021, Muhammad Ahmed Saeed: None declared, Kichul Shin: None declared, Mohit Goyal: None declared, Muhammad Haroon: None declared, Mohammed Hammoudeh Speakers bureau: Have you been paid as a speaker for (pharmaceutical) companies, Grant/research support from: participated in drug companies sponsored trials, Nallasivan Subramanian: None declared, Ho Yin Chung: None declared, James Cheng-Chung Wei: None declared, Mitsumasa Kishimoto Consultant of: MK received consulting fees and/or speaker fees from AbbVie, Amgen, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, and UCB Pharma., Lai-Shan Tam Consultant of: has acted as a consultant for Janssen, Pfizer, Sanofi, AbbVie, Boehringer Ingelheim, and Lilly, Grant/research support from: has received grant/research support from Amgen, Boehringer Ingelheim, Janssen, GSK, Novartis, and Pfizer
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Tamai H, Ikeda K, Miyamoto T, Taguchi H, Kuo CF, Shin K, Hirata S, Okano Y, Sato S, Yasuoka H, Choi IA, Park SH, Weng MY, Kuwana M, Lee YJ, Ishii T, Kim J, Kameda H, Kojima T, Baek HJ, Hsu PN, Huang CM, Cheng TT, Sung WY, Taninaga T, Mori M, Miyagishi H, Sato Y, Takeuchi T, Kaneko Y. OP0062 EFFICACY AND SAFETY OF ADALIMUMAB WITH LOW AND HIGH DOSE-METHOTREXATE IN PATIENTS WITH RHEUMATOID ARTHRITIS WITH INADEQUATE RESPONSE TO METHOTREXATE: THE RANDOMISED CONTROLLED MIRACLE STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundRheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that causes not only joint pain but also bone destruction resulting in impairment of quality of life. Tumor necrosis factor inhibitors have improved prognosis of patients with rheumatoid arthritis dramatically, especially in combination with methotrexate, however, the optimal dose of the concomitant methotrexate is unclear.ObjectivesTo evaluate the efficacy and safety of adalimumab in combination with reduced dose of methotrexate in patients with early RA with inadequate response to methotrexate.MethodsThe MIRACLE study was a multinational, randomized, open-label study in patients with RA with inadequate response to methotrexate conducted in Asia. It compared low dose and high dose methotrexate upon starting adalimumab. Methotrexate-naive patients with RA with a disease duration of less than two years started methotrexate at 6 to 8 mg/week and increased it to the maximum tolerable dose by week 12. Patients who have not achieved remission according to simplified disease activity index (SDAI) despite methotrexate ≥ 10 mg/week at week 24 were randomised to the maximum tolerable dose of methotrexate group (10 to 25 mg/week) or the reduced dose group (6 to 8 mg/week) and started to receive subcutaneous adalimumab 40 mg every other week. The primary endpoint was non-inferiority in the achievement of SDAI remission at week 48 in the reduced dose group compared with the maximum tolerable dose group with a non-inferiority margin of -15% based on two-sided 90% confidence interval. (NCT03505008)ResultsA total of 300 patients were enrolled in the study. Among them, 291 started methotrexate and were included in the analysis. The mean age was 57.7±15.2 years, female was 74.6%, and the mean disease duration from the diagnosis of RA was 21.1±56.2 days. Anti-CCP antibody was positive in 211 (73.0%) and the mean SDAI at study enrollment was 26.5±12.4. At week 24, with the mean dose of methotrexate of 12.6±2.9 mg/week, 108 patients (37.1%) achieved remission according to SDAI and continued MTX monotherapy. 134 patients (46.0%) were randomised and started adalimumab with 68 patients in the maximum tolerable dose group and 66 patients in the reduced dose group. At week 48, the remission achievement rates were 38.4 % and 44.8 %, respectively, with the adjusted risk difference of the reduced dose group to the maximum tolerable dose group of 6.4% (-7.0% to 19.8%, 90% CI), which met the criterion for noninferiority. No significant difference was found in health assessment questionnaire disability index ≤0.5 (59.1% vs 62.0%, respectively, p=0.72) and in radiological remission rates (Δmodified total Sharp score ≤0.5, 66.3% vs 62.0 %, respectively, p=0.59). Adverse drug reactions tended to be more frequent in the maximum tolerable dose group than in the reduced dose group (22.1% vs 9.1%, respectively, p=0.06).ConclusionThe MIRACLE randomised study demonstrated that, in patients with inadequate response to methotrexate, the efficacy of adalimumab with reduced dose of concomitant methotrexate was not inferior to that with maximum tolerable dose of methotrexate with better safety profile.Disclosure of InterestsHiroya Tamai Speakers bureau: Eisai, Grant/research support from: Eisai, Kei Ikeda Speakers bureau: AbbVie, Eisai, Eli Lilly, Novartis, Gilead, Asahi-Kasei, Grant/research support from: Mitsubishi-Tanabe, Toshiaki Miyamoto: None declared, Hiroaki Taguchi: None declared, Chang-Fu Kuo: None declared, Kichul Shin: None declared, Shintaro Hirata Speakers bureau: AbbVie, Asahi-Kasei, Astellas, Ayumi, Bristol Myers Squibb, Celgene, Chugai, Eisai, Eli Lilly, Gilead, Glaxo SmithKline, Janssen, Kyorin, Novartis, Pfizer, Sanofi, Tanabe-Mitsubishi, UCB, Paid instructor for: AbbVie, Mitsubishi-Tanabe, Consultant of: AbbVie, Astellas, Bristol Myers Squibb, Eisai, Gilead, Ily Lilly, Grant/research support from: AbbVie, Asahi-Kasei, Eisai, Otsuka, Sanofi, Shionogi, Chugai, Pfizer, Tanabe-Mitsubishi, Eli Lilly, UCB, yutaka okano: None declared, Shinji Sato Speakers bureau: AbbVie, Eisai, Grant/research support from: AbbVie, Eisai, Hidekata Yasuoka Speakers bureau: AbbVie, Asahi Kasei Pharma, Astellas, Daiichi-Sankyo, Eisai, Kissei, Takeda, Mitsubishi-Tanabe, Chugai, Novartis, Eli Lilly, Pfizer, Janssen, Sanofi, Teijin, Boehringer-Ingelheim, Bayer, Glaxo Smith Kline, Paid instructor for: AbbVie, Consultant of: AbbVie, Asahi Kasei, Grant/research support from: Mitsubishi-Tanabe, Takeda, Daiichi-Sankyo, Chugai, Bristol-Myers, MSD, Astellas, In Ah Choi Speakers bureau: Abbvie, Eisai, Sung-Hwan Park: None declared, Meng-Yu Weng Paid instructor for: Novartis, Eli Lilly, ChuGai, Abbvie, Consultant of: Abbvie, Masataka Kuwana Speakers bureau: Astellas, Asahi Kasei Pharma, Boehringer-Ingelheim, Chugai, Eisai, Janssen, Mochida, Nippon Shinyaku, Ono Pharmaceuticals, Pfizer, Mitsubishi-Tanabe, Consultant of: Boehringer-Ingelheim, Kissei, Mochida, Grant/research support from: AbbVie, Asahi Kasei Pharma, Boehringer-Ingelheim, Chugai, Eisai, MBL, Nippon Shinyaku, Ono Pharmaceuticals, Mitsubishi-Tanabe, Yun Jong Lee Grant/research support from: Yuhan, Tomonori Ishii Speakers bureau: Chugai, Mitsubishi-Tanabe, Glaxo Smith Kline, Pfizer, Eli Lilly, Janssen, AbbVie, Eisai, Astellas, Jinhyun Kim: None declared, Hideto Kameda Speakers bureau: AbbVie, Pfizer, Consultant of: AbbVie, Grant/research support from: AbbVie, Eisai, Toshihisa Kojima Speakers bureau: AbbVie, Pfizer, Eisai, Grant/research support from: AbbVie, Han Joo Baek: None declared, Ping-Ning Hsu: None declared, Chun-Ming Huang Paid instructor for: Abbvie, Pfizer, Tien-Tsai Cheng Paid instructor for: Abbvie, Grant/research support from: Abbvie, Wan-Yu Sung: None declared, Takehiro Taninaga Shareholder of: Eisai.co.,Ltd., Employee of: Eisai.co.,Ltd., Masahiko Mori Shareholder of: Eisai.co.,Ltd., Employee of: Eisai.co.,Ltd., Hideaki Miyagishi Shareholder of: Eisai.co.,Ltd., Employee of: Eisai.co.,Ltd., Yasunori Sato Speakers bureau: Eisai Co., Ltd. Kowa Company, Ltd., Consultant of: MOCHIDA PHARMACEUTICAL CO., LTD, Tsutomu Takeuchi Speakers bureau: Astellas, AbbVie, Ayumi, Bristol Myers Squibb, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Glaxo Smith Kline, Janssen, Mitsubishi-Tanabe, Nippon-kayaku, Novartis, Pfizer, Sanofi, UCB, Grant/research support from: Asahi Kasei, AbbVie, Ayumi, Boehringer-Ingelheim, Chugai, Eisai, Eli Lilly, Mitsubishi-Tanabe, Sanofi, UCB, Yuko Kaneko Speakers bureau: Asahi Kasei, Astellas, Ayumi, Bristol Myers Squibb, Chugai, Eisai, Elli Lilly, Mitsubishi-Tanabe, Novartis, UCB, Grant/research support from: AbbVie, Chugai, Eisai, Mitsubishi-Tanabe, UCB.
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Yeo J, Shin K, Lee EY, Kim TH, Park JW. POS0942 DEVELOPMENT OF PREDICTION MODEL FOR FLARE AFTER TAPERING OF TNF INHIBITORS IN PATIENTS WITH AXIAL SPONDYLOARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundTumor necrosis factor inhibitors (TNFi) have become a mainstay of management for axial spondyloarthritis (axSpA). However, it remains unclear whether patients with axSpA should continue the standard-dose TNFi after achieving stable disease activity. Although complete discontinuation of TNFi is followed by early relapse in most cases, several studies documented that reduced doses of TNFi in patients with prolonged low disease activity showed similar effects on disease control and drug survival compared to standard dose of TNFi. One of the main problem in the dose-tapering strategies for TNFi is a selection of the appropriate patient. However, there has been a lack of robust evidence regarding clinical factors predicting the flare after tapering of TNFi in patients with axSpA.ObjectivesThis study aims to develop and validate the prediction model to select the patients in whom tapering of TNFi does not lead to flare.MethodsWe used the data from Korean College of Rheumatology Biologics registry, which included a total of 1,730 patients receiving biologic DMARD from 2017 to 2019 in South Korea. In this study, a total of 526 patients who were initially treated with the standard-dose TNFi and tapered the dose after at least 1 year of the treatment were analyzed. Dose quotient (DQ, 0-1) was applied to quantified TNFi used during interval. The main outcome was an occurrence of flare defined as ASDAS-CRP score of ≥2.1 after 1 year of tapering TNFi. To develop the prediction model, clinical factors having relevant association (p < 0.1) with the outcome were first selected as candidate predictors. Logistic regression using a stepwise approach through backward elimination was used for the final model.ResultsPatients’ mean (SD) age was 37.5 (11.9) years, 418 (79.5%) were men, and 474 (90.1%) were HLA-B27 positive. Mean disease duration was 5.0 (6.1) years and 433 (82.3%) were TNF naïve. The mean BASFI and ASDAS-CRP at baseline were 3.4 (2.6) and 3.7 (1.0), respectively. Approximately two-thirds of the patients (65.8%) were initiated TNFi tapering at the first 1 or 2 years from baseline. At the time of TNFi tapering, the mean DQ was 0.67 (0.15) and 381 (72.4%) were prescribed concurrently with NSAIDs, and the mean BASFI and ASDAS-CRP were 1.3 (1.8) and 1.6 (0.9), respectively. During 12 months of follow up starting from the TNFi tapering, 127 (24.1%) experienced the flare. The multivariable analysis revealed that HLA-B27 positivity (OR 0.337; 95% CI 0.161-0.705; p=0.004), inflammatory back pain (OR 2.920; 95% CI 1.283-6.648; p=0.011), ASDAS-CRP at tapering (OR 2.798; 95% CI 2.030-3.856; p<0.001), and BASFI at tapering (OR 1.214; 95% CI 1.051-1.402; p=0.008) were significantly associated with flare. Based on the results of the logistic regression analysis, the predicted probability was calculated by the following formula: P=1/[1+ exp{-(1.088 x HLA-B27 negativity + 1.072 x inflammatory back pain + 1.567 x psoriasis + 0.623 x family history of axSpA + 1.092 x diabetes mellitus + 0.435 x DQ at TNFi tapering + 1.029 x ASDAS-CRP at TNFi tapering + 0.194 x BASFI at TNFi tapering)}]. The best cut-off value of the model to define the flare was 0.2416 (95% CI 0.176, 0.301) with sensitivity 74.0% and with specificity 81.0%. AUC was 0.828 (95% CI 0.786-0.869) indicating a good predication (Figure 1). The internal validation with bootstrapping showed minimal overfitting (estimated AUC 0.794) and good calibration between observed and predicted values (calibration slope 1.110, 95% CI 0.903, 1.317; intercept 0.026, 95% CI -0.091, 0.039).Figure 1.Apparent performance of developed model for prediction of flare after 12 months of tumor necrosis factor inhibitors tapering.ConclusionWe developed the prediction model for the flare after 12 months of TNFi tapering in patients with axSpA. It might be applicable in real world setting, although external validation will be required in the future investigation.References[1]Zavada J, et al. Ann Rheum Dis. 2016;75(1):96-102.AcknowledgementsWe greatly thank to the the Clinical Research Committee of the Korean College of Rheumatology and all participating hospitals.Disclosure of InterestsNone declared
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Moon S, Lee J, Shin K, Lee S, Yu S, Jun K, Park C. T269 Comparison of indocyanine green tests in between 44 Korean institutions. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lee HG, Kim JH, Gorai T, Ko YH, Kwon HY, Chung W, Hwang I, Lim S, Kim YK, Shin K, Chang YT, Kim K, Park KM. Contagious Aggregation: Transmittable Protein Aggregation in Cellular Communities Initiated by Synthetic Cells. J Am Chem Soc 2022; 144:5067-5073. [PMID: 35258954 DOI: 10.1021/jacs.1c13545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aggregation of amyloidogenic proteins causing neurodegenerative diseases is an uncontrollable and contagious process that is often associated with lipid membranes in a highly complex physiological environment. Although several approaches using natural cells and membrane models have been reported, systematic investigations focusing on the association with the membranes are highly challenging, mostly because of the lack of proper molecular tools. Here, we report a new supramolecular approach using a synthetic cell system capable of controlling the initiation of protein aggregation and mimicking various conditions of lipid membranes, thereby enabling systematic investigations of membrane-dependent effects on protein aggregation by visualization. Extending this strategy through concurrent use of synthetic cells and natural cells, we demonstrate the potential of this approach for systematic and in-depth studies on interrogating inter- and intracellularly transmittable protein aggregation. Thus, this new approach offers opportunities for gaining insights into the pathological implications of contagious protein aggregation associated with membranes for neurotoxicity.
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Affiliation(s)
- Hong-Guen Lee
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Jin Hae Kim
- Department of New Biology, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Republic of Korea
| | - Tumpa Gorai
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Young Ho Ko
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Haw-Young Kwon
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Wooseong Chung
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Ilha Hwang
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea
| | - Sungsu Lim
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Yun Kyung Kim
- Brain Science Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.,Division of Bio-Medical Science & Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Republic of Korea
| | - Young-Tae Chang
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Kimoon Kim
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Kyeng Min Park
- Center for Self-assembly and Complexity, Institute for Basic Science, Pohang 37673, Republic of Korea.,Department of Biochemistry, Daegu Catholic University School of Medicine, 33 Duryugongwon-ro 17-gil, Daegu 42472, Republic of Korea
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Kirsten F, Marcote B, Nimmo K, Hessels JWT, Bhardwaj M, Tendulkar SP, Keimpema A, Yang J, Snelders MP, Scholz P, Pearlman AB, Law CJ, Peters WM, Giroletti M, Paragi Z, Bassa C, Hewitt DM, Bach U, Bezrukovs V, Burgay M, Buttaccio ST, Conway JE, Corongiu A, Feiler R, Forssén O, Gawroński MP, Karuppusamy R, Kharinov MA, Lindqvist M, Maccaferri G, Melnikov A, Ould-Boukattine OS, Possenti A, Surcis G, Wang N, Yuan J, Aggarwal K, Anna-Thomas R, Bower GC, Blaauw R, Burke-Spolaor S, Cassanelli T, Clarke TE, Fonseca E, Gaensler BM, Gopinath A, Kaspi VM, Kassim N, Lazio TJW, Leung C, Li DZ, Lin HH, Masui KW, Mckinven R, Michilli D, Mikhailov AG, Ng C, Orbidans A, Pen UL, Petroff E, Rahman M, Ransom SM, Shin K, Smith KM, Stairs IH, Vlemmings W. A repeating fast radio burst source in a globular cluster. Nature 2022; 602:585-589. [PMID: 35197615 DOI: 10.1038/s41586-021-04354-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 12/15/2021] [Indexed: 11/09/2022]
Abstract
Fast radio bursts (FRBs) are flashes of unknown physical origin1. The majority of FRBs have been seen only once, although some are known to generate multiple flashes2,3. Many models invoke magnetically powered neutron stars (magnetars) as the source of the emission4,5. Recently, the discovery6 of another repeater (FRB 20200120E) was announced, in the direction of the nearby galaxy M81, with four potential counterparts at other wavelengths6. Here we report observations that localized the FRB to a globular cluster associated with M81, where it is 2 parsecs away from the optical centre of the cluster. Globular clusters host old stellar populations, challenging FRB models that invoke young magnetars formed in a core-collapse supernova. We propose instead that FRB 20200120E originates from a highly magnetized neutron star formed either through the accretion-induced collapse of a white dwarf, or the merger of compact stars in a binary system7. Compact binaries are efficiently formed inside globular clusters, so a model invoking them could also be responsible for the observed bursts.
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Affiliation(s)
- F Kirsten
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden. .,ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands.
| | - B Marcote
- Joint Institute for VLBI ERIC, Dwingeloo, The Netherlands
| | - K Nimmo
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands.,Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - J W T Hessels
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands.,Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - M Bhardwaj
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada
| | - S P Tendulkar
- Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Mumbai, India.,National Centre for Radio Astrophysics, Pune, India
| | - A Keimpema
- Joint Institute for VLBI ERIC, Dwingeloo, The Netherlands
| | - J Yang
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - M P Snelders
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - P Scholz
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - A B Pearlman
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada.,Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA, USA
| | - C J Law
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA.,Owens Valley Radio Observatory, California Institute of Technology, Pasadena, CA, USA
| | - W M Peters
- Remote Sensing Division, US Naval Research Laboratory, Washington, DC, USA
| | - M Giroletti
- Istituto Nazionale di Astrofisica, Istituto di Radioastronomia, Bologna, Italy
| | - Z Paragi
- Joint Institute for VLBI ERIC, Dwingeloo, The Netherlands
| | - C Bassa
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands
| | - D M Hewitt
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - U Bach
- Max Planck Institute for Radio Astronomy, Bonn, Germany
| | - V Bezrukovs
- Engineering Research Institute Ventspils International Radio Astronomy Centre (ERI VIRAC), Ventspils University of Applied Sciences (VUAS), Ventspils, Latvia
| | - M Burgay
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy
| | - S T Buttaccio
- Istituto Nazionale di Astrofisica, Istituto di Radioastronomia Radiotelescopio di Noto, Noto, Italy
| | - J E Conway
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - A Corongiu
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy
| | - R Feiler
- Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Toruń, Poland
| | - O Forssén
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - M P Gawroński
- Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Toruń, Poland
| | - R Karuppusamy
- Max Planck Institute for Radio Astronomy, Bonn, Germany
| | - M A Kharinov
- Institute of Applied Astronomy of the Russian Academy of Sciences, St. Petersburg, Russia
| | - M Lindqvist
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
| | - G Maccaferri
- Istituto Nazionale di Astrofisica, Istituto di Radioastronomia, Bologna, Italy
| | - A Melnikov
- Institute of Applied Astronomy of the Russian Academy of Sciences, St. Petersburg, Russia
| | - O S Ould-Boukattine
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - A Possenti
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy.,Dipartimento di Fisica, Università di Cagliari, Monserrato, Italy
| | - G Surcis
- Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Cagliari, Selargius, Italy
| | - N Wang
- Xinjiang Astronomical Observatory, Urumqi, China
| | - J Yuan
- Xinjiang Astronomical Observatory, Urumqi, China
| | - K Aggarwal
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - R Anna-Thomas
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - G C Bower
- Academia Sinica Institute of Astronomy and Astrophysics, Hilo, HI, USA
| | - R Blaauw
- ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands
| | - S Burke-Spolaor
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA.,Canadian Institute for Advanced Research, CIFAR Azrieli Global Scholar, Toronto, Ontario, Canada
| | - T Cassanelli
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada.,David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - T E Clarke
- Remote Sensing Division, US Naval Research Laboratory, Washington, DC, USA
| | - E Fonseca
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada.,Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - B M Gaensler
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada.,David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - A Gopinath
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands
| | - V M Kaspi
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada
| | - N Kassim
- Remote Sensing Division, US Naval Research Laboratory, Washington, DC, USA
| | - T J W Lazio
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - C Leung
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - D Z Li
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - H H Lin
- Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada.,Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
| | - K W Masui
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - R Mckinven
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - D Michilli
- Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada.,MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - A G Mikhailov
- Institute of Applied Astronomy of the Russian Academy of Sciences, St. Petersburg, Russia
| | - C Ng
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada
| | - A Orbidans
- Engineering Research Institute Ventspils International Radio Astronomy Centre (ERI VIRAC), Ventspils University of Applied Sciences (VUAS), Ventspils, Latvia
| | - U L Pen
- Dunlap Institute for Astronomy & Astrophysics, University of Toronto, Toronto, Ontario, Canada.,Canadian Institute for Advanced Research, CIFAR Azrieli Global Scholar, Toronto, Ontario, Canada.,Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada.,Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada.,Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan
| | - E Petroff
- Anton Pannekoek Institute for Astronomy, University of Amsterdam, Amsterdam, The Netherlands.,Department of Physics, McGill University, Montreal, Quebec, Canada.,McGill Space Institute, McGill University, Montreal, Quebec, Canada
| | - M Rahman
- Sidrat Research, Toronto, Ontario, Canada
| | - S M Ransom
- National Radio Astronomy Observatory, Charlottesville, VA, USA
| | - K Shin
- MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA, USA.,Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - K M Smith
- Perimeter Institute for Theoretical Physics, Waterloo, Ontario, Canada
| | - I H Stairs
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada
| | - W Vlemmings
- Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, Onsala, Sweden
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Lee KY, Nguyen HT, Setiawati A, Nam S, Kim M, Ko I, Jung WH, Parker KK, Kim C, Shin K. An Extracellular Matrix‐Liposome Composite, a Novel Extracellular Matrix Delivery System for Accelerated Tissue Regeneration (Adv. Healthcare Mater. 4/2022). Adv Healthc Mater 2022. [DOI: 10.1002/adhm.202270022] [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: 11/05/2022]
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Lee KY, Nguyen HT, Setiawati A, Nam S, Kim M, Ko I, Jung WH, Parker KK, Kim C, Shin K. An Extracellular Matrix-Liposome Composite, a Novel Extracellular Matrix Delivery System for Accelerated Tissue Regeneration. Adv Healthc Mater 2022; 11:e2101599. [PMID: 34800312 DOI: 10.1002/adhm.202101599] [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: 08/04/2021] [Revised: 10/26/2021] [Indexed: 11/10/2022]
Abstract
The unfolded states of fibronectin (FN) subsequently induce the formation of an extracellular matrix (ECM) fibrillar network, which is necessary to generate new substitutive tissues. Here, the authors demonstrate that negatively charged small unilamellar vesicles (SUVs) qualify as candidates for FN delivery due to their remarkable effects on the autonomous binding and unfolding of FN, which leads to increased tissue regeneration. In vitro experiments revealed that the FN-SUV complex remarkably increased the attachment, differentiation, and migration of fibroblasts. The potential utilization of this complex in vivo to treat inflammatory colon diseases is also described based on results obtained for ameliorated conditions in rats with ulcerative colitis (UC) that had been treated with the FN-SUV complex. Their findings provide a new ECM-delivery platform for ECM-based therapeutic applications and suggest that properly designed SUVs may be an unprecedented FN-delivery system that is highly effective in treating UC and inflammatory bowel diseases.
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Affiliation(s)
- Keel Yong Lee
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Disease Biophysics Group John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge 02138 USA
| | - Huong Thanh Nguyen
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Department of Life Science Sogang University Seoul 02447 Republic of Korea
- Faculty of Pharmacy Sanata Dharma University Yogyakarta 55284 Indonesia
| | - So‐Jung Nam
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Minyoung Kim
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Il‐Gyu Ko
- Department of Physiology College of Medicine Kyung Hee University Seoul 02447 Republic of Korea
| | - Won Hee Jung
- Department of Systems Biotechnology Chung‐Ang University Anseong 17546 Republic of Korea
| | - Kevin K. Parker
- Disease Biophysics Group John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge 02138 USA
| | - Chang‐Ju Kim
- Department of Physiology College of Medicine Kyung Hee University Seoul 02447 Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Disease Biophysics Group John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge 02138 USA
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22
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Jin ML, Park S, Kweon H, Fu A, Koh HJ, Gao M, Tang C, Cho SY, Kim Y, Zhang S, Li X, Shin K, Jung HT, Ahn CW, Kim DH. Scalable Superior Chemical Sensing Performance of Stretchable Ionotronic Skin via a π-Hole Receptor Effect. Adv Mater 2022; 34:e2109493. [PMID: 35083787 DOI: 10.1002/adma.202109493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
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23
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Tamai H, Kaneko Y, Kameda H, Kuwana M, Okano Y, Ishii T, Ikeda K, Taguchi H, Sato S, Miyamoto T, Hirata S, Yasuoka H, Kojima T, Park SH, Shin K, Baek HJ, Lee YJ, Choi IA, Kim J, Hsu PN, Kuo CF, Huang CM, Weng MY, Sung WY, Tsai WC, Cheng TT, Taninaga T, Mori M, Miyagishi H, Sato Y, Takeuchi T. AB0253 COMPARISON OF PHARMACODYNAMICS OF METHOTREXATE AS METHOTREXATE-POLYGLUTAMATES CONCENTRATIONS IN RHEUMATOID ARTHRITIS; INTERIM DATA EVALUATION OF MIRACLE STUDY CONDUCTED IN JAPAN, KOREA AND TAIWAN. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Methotrexate (MTX) is the first-line therapy for rheumatoid arthritis (RA). The concentrations of MTX-polyglutamates (PG) in erythrocytes, an active form of MTX, are useful markers for the optimal usage of MTX in patients with RA. The concentrations of MTX-PG have been reported to be different between Japanese and Caucasians. However, the difference among Asian ethnicity remains unclear.Objectives:To examine MTX-PG concentrations in association with MTX dose during the first 24 weeks after the initiation of MTX for newly diagnosed RA patients in Japan, Korea and Taiwan.Methods:MIRACLE study is a multicenter, open-label, randomized, 48 weeks interventional study conducted in Japan, Korea and Taiwan to evaluate non-inferiority of low dose to high dose of MTX as an add-on therapy to adalimumab in 300 patients with RA who do not achieve remission after 24 weeks MTX monotherapy in stipulated dosage. In the first 24 weeks, MTX was started at 6 to 8 mg/week for newly diagnosed RA patients, and promptly escalated to the maximum tolerable dose in 12 weeks in principle. This interim data evaluation was intended to investigate the differences among countries in the relationship between MTX dose, safety and MTX-PG concentrations in erythrocytes during the first 24 weeks. The efficacy of the treatment is not included at this point.Results:A total of 166 patients (106 in Japan, 35 in Korea, 25 in Taiwan) were included in this interim data. The age at treatment initiation was 57.2 years old on average and female was 79.5%. The time course changes in total and individual MTX-PG levels differed in the three countries. At 24 weeks, whereas the mean total MTX-PG concentrations were comparable (112.9 nmol/L in Japan, 104.4 nmol/L in Korea, and 115.7 nmol/L in Taiwan) with a dose of MTX of 12.3 mg/week, 14.1 mg/week, and 12.2 mg/week, respectively, the individual MTX-PG concentrations were different. The MTX-PG1 and MTX-PG2 concentrations were lower in Korea than Japan and Taiwan whereas MTX-PG3, MTX-PG4 and MTX-PG5 concentrations were the highest in Korea.Conclusion:The distribution of short-chain and long-chain MTX-PG concentrations were various among Asian countries despite similar dose of MTX administration: NCT03505008.Disclosure of Interests:Hiroya Tamai: None declared, Yuko Kaneko Speakers bureau: AbbVie, Astellas, Ayumi, Bristol–Myers Squibb, Chugai, Eisai, Eli Lilly, Hisamitsu, Jansen, Kissei, Kirin, Pfizer, Sanofi, Takeda, Tanabe-Mitsubishi, and UCB., Grant/research support from: Sanofi, Hideto Kameda Speakers bureau: AbbVie, Pfizer, Consultant of: AbbVie, Grant/research support from: AbbVie, Eisai, Masataka Kuwana Speakers bureau: Astellas, Asahi Kasei Pharma, Boehringer- Ingelheim, Chugai, Eisai, Janssen, Mochida, Nippon Shinyaku, Ono Pharmaceuticals, Pfizer, Mitsubishi-Tanabe, Consultant of: Corbus, Grant/research support from: AbbVie, Asahi Kasei Pharma, Boehringer- Ingelheim, Chugai, Eisai, MBL, Nippon Shinyaku, Ono Pharmaceuticals, Mitsubishi-Tanabe, Yutaka Okano: None declared, Tomonori Ishii Speakers bureau: Chugai, Mitsubishi- Tanabe, Glaxo Smith Kline, Pfizer, Eli Lilly, Janssen, AbbVie, Eisai, Astellas, Kei Ikeda Speakers bureau: AbbVie, Eli Lilly, Novartis, Mitsubishi-Tanabe, Eisai, BMS, Grant/research support from: Mitsubishi-Tanabe, Hiroaki Taguchi: None declared, Shinji Sato: None declared, Toshiaki Miyamoto: None declared, Shintaro Hirata Speakers bureau: AbbVie, Asahi Kasei Pharma, Astellas, Ayumi, Bristol Myers Squibb, Chugai, Eisai, Eli Lilly, Janssen, Glaxo Smith Kline, Kissei, Pfizer, Sanofi, Mitsubishi- Tanabe, UCB, Paid instructor for: AbbVie, Mitsubishi- Tanabe, Consultant of: AbbVie, Eisai, Gilead, Grant/research support from: AbbVie, Chugai, Mitsubishi-Tanabe, UCB, Hidekata Yasuoka Speakers bureau: AbbVie, Asahi Kasei Pharma, Astellas, Daiichi- Sankyo, Eisai, Kissei, Takeda, Mitsubishi- Tanabe, Chugai, Novartis, Eli Lilly, Pfizer, Janssen, Sanofi, Teijin, Boehringer- Ingelheim, Bayer, Glaxo Smith Kline, Paid instructor for: AbbVie, Consultant of: AbbVie, Asahi Kasei, Grant/research support from: Mitsubishi-Tanabe, Takeda, Daiichi-Sankyo, Chugai, Bristol-Myers, MSD, Astellas, Toshihisa Kojima Speakers bureau: AbbVie, Pfizer, Eisai, Grant/research support from: AbbVie, Sung-Hwan Park: None declared, Kichul Shin: None declared, Han Joo Baek: None declared, Yun Jong Lee Grant/research support from: research fund, In Ah Choi Speakers bureau: Abbvie, Eizai, Grant/research support from: Abbvie, Eizai, Jinhyun Kim: None declared, Ping-Ning Hsu: None declared, Chang-Fu Kuo: None declared, Chun-Ming Huang Paid instructor for: AbbVie, Pfizer, Meng-Yu Weng Consultant of: AbbVie, Wan-Yu Sung: None declared, Wen-Chan Tsai: None declared, Tien-Tsai Cheng Paid instructor for: AbbVie, Grant/research support from: AbbVie, Takehiro Taninaga Shareholder of: Eisai Co., Ltd., Employee of: Eisai Co., Ltd., Masahiko Mori Shareholder of: Eisai Co., Ltd., Employee of: Eisai Co., Ltd., Hideaki Miyagishi Employee of: Eisai Co., Ltd., Yasunori Sato: None declared, Tsutomu Takeuchi Speakers bureau: Astellas, Abbvie, Daiichi Sankyo, Ayumi, Eisai, GlaxoSmithKline, Mitsubishi Tanabe, Chugai, Novartis, Eli Lilly, Pfizer, Bristol Myers Squibb, Janssen, UCB, TaishoToyama, Sanofi–Aventis, Nipponkayaku, Taiho, Gilead, Boehringer Ingelheim, Grant/research support from: Asahikasei, Astellas, Abbvie, Daiichi Sankyo, Ayumi, Eisai, Takeda, Mitsubishi Tanabe, Chugai, Eli Lilly, UCB, Sanofi–Aventis, Nipponkayaku, Boehringer Ingelheim
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Park JW, Kim MJ, Kim HA, Kim J, Lee EB, Shin K. POS0628 FAILURE TO SUSTAIN TREATMENT TARGET AFTER TAPERING TOCILIZUMAB IN PATIENTS WITH RHEUMATOID ARTHRITIS: 4-YEAR LONGITUDINAL DATA FROM A NATIONWIDE COHORT. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Tapering biologic therapy after achieving clinical remission or low disease activity (LDA) has become a viable option in daily clinical practice of treating patients with rheumatoid arthritis (RA). There are yet few studies investigating its effectiveness and safety compared with those of standard biologic treatment, especially with non-tumor necrosis factor inhibitors.Objectives:To investigate the effectiveness and safety of tapering tocilizumab (TCZ) in patients with RA who attained LDA after TCZ therapy.Methods:Data were collected from a nationwide cohort of patients with RA receiving biologic therapy in South Korea (KOBIO-RA). This study included 350 patients who were treated with TCZ and achieved Clinical Disease Activity Index (CDAI)-LDA or remission (CDAI ≤ 10) after one year of treatment. We performed a longitudinal analysis utilizing clinical data measured in all 1-year intervals using generalized estimating equations (GEE). A total of 575 one-year intervals were divided into two groups according to the dose quotient (DQ, 0-100%) of TCZ within the interval (tapering group vs. standard treatment group). The main outcome of this study was loss of CDAI-LDA in the following 1-year interval.Results:Tapering TCZ was conducted in 282 (49.0%) intervals with a mean (SD) DQ of 66.0 (15.5). Loss of CDAI-LDA occurred in 91 (15.1%) intervals. Multivariable GEE showed significantly increased loss of CDAI-LDA (adjusted OR (95% CI): 1.76 [1.01 to 3.07]) in the tapering group after adjusting for previous biologics use, route of TCZ administration, concomitant glucocorticoid use, and CDAI measured in the previous follow-up. In addition, the likelihood to achieve DAS28-deep remission (DAS28-ESR < 1.98) was also significantly lower in the tapering group (adjusted OR 0.68 [0.46 to 0.99]). In contrast, there was no significant difference in the proportion of fulfilling other remission criteria between the two groups (Table 1). Development any adverse drug event or event of special interest was comparable in both groups except for hypercholesterolemia, which was lower in the tapering group.Table 1.Demographic characteristics and csDMARDs before first bDMARDLoss of CDAI-LDADAS28-remissionDAS28-deep remissionCDAI-remissionSDAI-remissionACR/EULAR remissionUnadjusted OR (95% CI)(vs. standard-dose group)1.02 (0.67 to 1.55)1.03 (0.71 to 1.49)0.76 (0.54 to 1.06)1.23 (0.75 to 2.00)0.92 (0.59 to 1.44)0.98 (0.65 to 1.48)Adjusted OR(95% CI)(vs. standard-dose group)1.76 (1.01 to 3.07)0.87 (0.54 to 1.38)0.68 (0.46 to 0.99)0.94 (0.57 to 1.55)0.87 (0.54 to 1.38)0.76 (0.50 to 1.18)CDAI, clinical disease activity index; CI, confidence interval; DAS, disease activity score; LDA, low disease activity; OR, odds ratio; SDAI, simplified disease activity index.Conclusion:Tapering TCZ after achieving LDA in patients with RA increases the risk of losing the benefit of LDA without a significant merit in safety.References:[1]Smolen JS et al. Maintenance, reduction or withdrawal of etanercept after treatment with etanercept and methotrexate in patients with moderate rheumatoid arthritis (PRESERVE): a randomised controlled trial. Lancet. 2013;381:918-29.[2]Schett G et al. Tapering biologic and conventional DMARD therapy in rheumatoid arthritis: current evidence and future directions. Ann Rheum Dis. 2016;75:1428-37.Disclosure of Interests:None declared
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Ratri MC, Brilian AI, Setiawati A, Nguyen HT, Soum V, Shin K. Recent Advances in Regenerative Tissue Fabrication: Tools, Materials, and Microenvironment in Hierarchical Aspects. Adv NanoBio Res 2021. [DOI: 10.1002/anbr.202170053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Monica Cahyaning Ratri
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Department of Chemistry Education Sanata Dharma University Yogyakarta 55281 Indonesia
| | - Albertus Ivan Brilian
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Department of Life Science Sogang University Seoul 04107 Republic of Korea
- Faculty of Pharmacy Sanata Dharma University Yogyakarta 55281 Indonesia
| | - Huong Thanh Nguyen
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Veasna Soum
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
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26
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Ratri MC, Brilian AI, Setiawati A, Nguyen HT, Soum V, Shin K. Recent Advances in Regenerative Tissue Fabrication: Tools, Materials, and Microenvironment in Hierarchical Aspects. Adv NanoBio Res 2021. [DOI: 10.1002/anbr.202000088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Monica Cahyaning Ratri
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Department of Chemistry Education Sanata Dharma University Yogyakarta 55281 Indonesia
| | - Albertus Ivan Brilian
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
- Department of Life Science Sogang University Seoul 04107 Republic of Korea
- Faculty of Pharmacy Sanata Dharma University Yogyakarta 55281 Indonesia
| | - Huong Thanh Nguyen
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Veasna Soum
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University Seoul 04107 Republic of Korea
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Shin K, Park K, Jeong S, Chung H. 580 Hair growth stimulation effects of b-catenin stimulating peptides through DKK-1 inhibition. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.608] [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]
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28
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Jin ML, Park S, Kweon H, Koh HJ, Gao M, Tang C, Cho SY, Kim Y, Zhang S, Li X, Shin K, Fu A, Jung HT, Ahn CW, Kim DH. Scalable Superior Chemical Sensing Performance of Stretchable Ionotronic Skin via a π-Hole Receptor Effect. Adv Mater 2021; 33:e2007605. [PMID: 33599041 DOI: 10.1002/adma.202007605] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/27/2020] [Indexed: 06/12/2023]
Abstract
Skin-attachable gas sensors provide a next-generation wearable platform for real-time protection of human health by monitoring environmental and physiological chemicals. However, the creation of skin-like wearable gas sensors, possessing high sensitivity, selectivity, stability, and scalability (4S) simultaneously, has been a big challenge. Here, an ionotronic gas-sensing sticker (IGS) is demonstrated, implemented with free-standing polymer electrolyte (ionic thermoplastic polyurethane, i-TPU) as a sensing channel and inkjet-printed stretchable carbon nanotube electrodes, which enables the IGS to exhibit high sensitivity, selectivity, stability (against mechanical stress, humidity, and temperature), and scalable fabrication, simultaneously. The IGS demonstrates reliable sensing capability against nitrogen dioxide molecules under not only harsh mechanical stress (cyclic bending with the radius of curvature of 1 mm and cyclic straining at 50%), but also environmental conditions (thermal aging from -45 to 125 °C for 1000 cycles and humidity aging for 24 h at 85% relative humidity). Further, through systematic experiments and theoretical calculations, a π-hole receptor mechanism is proposed, which can effectively elucidate the origin of the high sensitivity (up to parts per billion level) and selectivity of the ionotronic sensing system. Consequently, this work provides a guideline for the design of ionotronic materials for the achievement of high-performance and skin-attachable gas-sensor platforms.
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Affiliation(s)
- Ming Liang Jin
- Institute for Future, Automation School of Qingdao University, Qingdao, 266071, China
- Shandong Key Laboratory of Industrial Control Technology, Automation School of Qingdao University, Qingdao, 266071, China
| | - Sangsik Park
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673, Republic of Korea
| | - Hyukmin Kweon
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
| | - Hyeong-Jun Koh
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea
| | - Min Gao
- Institute of Microengineering, École Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71b, Neuchâtel, 2000, Switzerland
| | - Chao Tang
- Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Soo-Yeon Cho
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, USA
| | - Yunpyo Kim
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Shuye Zhang
- State Key Laboratory of Advanced Welding and Jointing, Harbin Institute of Technology, Harbin, 150001, China
| | - Xinlin Li
- College of Electromechanical Engineering, Qingdao University, Qingdao, 266071, China
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Aiping Fu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea
| | - Chi Won Ahn
- Department of Nano-Structured Materials Research, National NanoFab Center (NNFC), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-338, Republic of Korea
| | - Do Hwan Kim
- Department of Chemical Engineering, Hanyang University, Seoul, 04763, Republic of Korea
- Institute of Nano Science and Technology, Seoul, 04763, Republic of Korea
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Setiawati A, Jang D, Cho D, Cho S, Jeong H, Park S, Gwak J, Ryu SR, Jung WH, Ju B, Jung K, Kwon O, Shin K. Novel Suture Systems: An Accelerated Wound‐Healing Surgical Suture Engineered with an Extracellular Matrix (Adv. Healthcare Mater. 6/2021). Adv Healthc Mater 2021. [DOI: 10.1002/adhm.202170023] [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: 11/06/2022]
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Setiawati A, Jang D, Cho D, Cho S, Jeong H, Park S, Gwak J, Ryu SR, Jung WH, Ju B, Jung K, Kwon O, Shin K. An Accelerated Wound-Healing Surgical Suture Engineered with an Extracellular Matrix. Adv Healthc Mater 2021; 10:e2001686. [PMID: 33458955 DOI: 10.1002/adhm.202001686] [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] [Received: 09/22/2020] [Revised: 01/02/2021] [Indexed: 12/21/2022]
Abstract
A suture is a ubiquitous medical device to hold wounded tissues together and support the healing process after surgery. Surgical sutures, having incomplete biocompatibility, often cause unwanted infections or serious secondary trauma to soft or fragile tissue. In this research, UV/ozone (UVO) irradiation or polystyrene sulfonate acid (PSS) dip-coating is used to achieve a fibronectin (FN)-coated absorbable suture system, in which the negatively charged moieties produced on the suture cause fibronectin to change from a soluble plasma form into a fibrous form, mimicking the actions of cellular fibronectin upon binding. The fibrous fibronectin coated on the suture can be exploited as an engineered interface to improve cellular migration and adhesion in the region around the wounded tissue while preventing the binding of infectious bacteria, thereby facilitating wound healing. Furthermore, the FN-coated suture is found to be associated with a lower friction between the suture and the wounded tissue, thus minimizing the occurrence of secondary wounds during surgery. It is believed that this surface modification can be universally applied to most kinds of sutures currently in use, implying that it may be a novel way to develop a highly effective and safer suture system for clinical applications.
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Affiliation(s)
- Agustina Setiawati
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
- Faculty of Pharmacy Sanata Dharma University Paingan, Maguwoharjo, Depok, Sleman Yogyakarta 55284 Indonesia
| | - Dongyoon Jang
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Daeyon Cho
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Shingyu Cho
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Hayan Jeong
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Sungmin Park
- Department of Systems Biotechnology Chung‐Ang University Anseong 17546 Republic of Korea
| | - Jungsug Gwak
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Soo Ryeon Ryu
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Won Hee Jung
- Department of Systems Biotechnology Chung‐Ang University Anseong 17546 Republic of Korea
| | - Bong‐Gun Ju
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Kwang‐Hwan Jung
- Department of Life Science Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Oh‐Sun Kwon
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces Sogang University 35‐Baekbeom‐ro, Mapo‐gu Seoul 04107 Republic of Korea
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Cera L, Gonzalez GM, Liu Q, Choi S, Chantre CO, Lee J, Gabardi R, Choi MC, Shin K, Parker KK. A bioinspired and hierarchically structured shape-memory material. Nat Mater 2021; 20:242-249. [PMID: 32868876 DOI: 10.1038/s41563-020-0789-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
Shape-memory polymeric materials lack long-range molecular order that enables more controlled and efficient actuation mechanisms. Here, we develop a hierarchical structured keratin-based system that has long-range molecular order and shape-memory properties in response to hydration. We explore the metastable reconfiguration of the keratin secondary structure, the transition from α-helix to β-sheet, as an actuation mechanism to design a high-strength shape-memory material that is biocompatible and processable through fibre spinning and three-dimensional (3D) printing. We extract keratin protofibrils from animal hair and subject them to shear stress to induce their self-organization into a nematic phase, which recapitulates the native hierarchical organization of the protein. This self-assembly process can be tuned to create materials with desired anisotropic structuring and responsiveness. Our combination of bottom-up assembly and top-down manufacturing allows for the scalable fabrication of strong and hierarchically structured shape-memory fibres and 3D-printed scaffolds with potential applications in bioengineering and smart textiles.
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Affiliation(s)
- Luca Cera
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Grant M Gonzalez
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Qihan Liu
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Suji Choi
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Christophe O Chantre
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Juncheol Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Rudy Gabardi
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Myung Chul Choi
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Korea
| | - Kevin Kit Parker
- Disease Biophysics Group, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA.
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Brilian AI, Soum V, Park S, Lee S, Kim J, Kwon K, Kwon OS, Shin K. A Simple Route of Printing Explosive Crystalized Micro-Patterns by Using Direct Ink Writing. Micromachines (Basel) 2021; 12:105. [PMID: 33494418 PMCID: PMC7911122 DOI: 10.3390/mi12020105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/17/2021] [Accepted: 01/20/2021] [Indexed: 11/21/2022]
Abstract
The production of energetic crystalized micro-patterns by using one-step printing has become a recent trend in energetic materials engineering. We report a direct ink writing (DIW) approach in which micro-scale energetic composites composed of 1,3,5-trinitro-1,3,5-triazinane (RDX) crystals in selected ink formulations of a cellulose acetate butyrate (CAB) matrix are produced based on a direct phase transformation from organic, solvent-based, all-liquid ink. Using the formulated RDX ink and the DIW method, we printed crystalized RDX micro-patterns of various sizes and shapes on silicon wafers. The crystalized RDX micro-patterns contained single crystals on pristine Si wafers while the micro-patterns containing dendrite crystals were produced on UV-ozone (UVO)-treated Si wafers. The printing method and the formulated all-liquid ink make up a simple route for designing and printing energetic micro-patterns for micro-electromechanical systems.
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Affiliation(s)
- Albertus Ivan Brilian
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (A.I.B.); (S.P.); (O.-S.K.)
| | - Veasna Soum
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (A.I.B.); (S.P.); (O.-S.K.)
- Graduate School of Science, Royal University of Phnom Penh, Phnom Penh 12150, Cambodia
| | - Sooyong Park
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (A.I.B.); (S.P.); (O.-S.K.)
| | - Soojin Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea;
| | - Jungwook Kim
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea;
| | - Kuktae Kwon
- Agency for Defense Development, Daejeon 34186, Korea;
| | - Oh-Sun Kwon
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (A.I.B.); (S.P.); (O.-S.K.)
| | - Kwanwoo Shin
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (A.I.B.); (S.P.); (O.-S.K.)
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Yang J, Kim H, Shin K, Nam Y, Heo HJ, Kim GH, Hwang BY, Kim J, Woo S, Choi HS, Ko DS, Lee D, Kim YH. Molecular insights into the development of hepatic metastases in colorectal cancer: a metastasis prediction study. Eur Rev Med Pharmacol Sci 2020; 24:12701-12708. [PMID: 33378017 DOI: 10.26355/eurrev_202012_24168] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Colorectal cancer is presently the third most commonly diagnosed cancer in the United States. In this study, we identified molecular differences between hepatic and non-hepatic metastases in colorectal cancer and evaluated their prognostic significance. MATERIALS AND METHODS We downloaded primary data from the NCBI Gene Expression Omnibus (GSE6988, GSE62321, GSE50760, and GSE28722). To identify the molecular differences, we used the Significance Analysis of Microarray method. We selected nine prognostic genes (SYTL2, PTPLAD1, CDS1, RNF138, PIGR, WDR78, MYO7B, TSPAN3, and ATP5F1) with hepatic metastasis prediction score in colorectal cancer (hereafter referred to as LASSO Score). We confirmed the prognostic significance of the LASSO Score by using Kaplan-Meier survival analysis, multivariate analysis, the time-dependent area under the curve (AUC) of Uno's C-index, and the AUC of the receiver operating characteristic curve at 1-5 years. RESULTS Survival analysis revealed that a high LASSO Score is associated with a poor prognosis in colorectal cancer patients with hepatic metastases (p = 0). Analysis of C-indices and AUC values from the receiver operating characteristic curve further supported this prediction by the LASSO Score. Multivariate analysis confirmed the prognostic significance of the LASSO Score (p = 1.13e-06). CONCLUSIONS This study reveals the biological mechanisms underlying hepatic metastases in colorectal cancer and will help in developing targeted therapies for colorectal cancer.
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Affiliation(s)
- J Yang
- Department of Premedicine, School of Medicine, Pusan National University, Yangsan, South Korea.
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Park S, Kim J, Shin K, Kim H, Lee M. 101P HIF1-α depletion overcomes resistance to oxaliplatin in colorectal cancer via ERK signalling pathway. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.121] [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: 10/22/2022] Open
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35
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Lee MJ, Yeom J, Choi JH, Shin JH, Kim TH, Jeon JW, Na JG, Shin K, Oh BK. Pump-Free Glass-Based Capillary Microfluidic Immuno-Assay Chip for Electrochemical Detection of Prostate-Specific Antigen. J Nanosci Nanotechnol 2020; 20:4629-4633. [PMID: 32126630 DOI: 10.1166/jnn.2020.17831] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Immuno-assay is one of diagnostic methods that usually measures biomarkers associated with cancers. However, this method is complex and take a long time to analyze. To overcome these disadvantages, many immuno-sensing chips have been designed and developed. However, these devices still require an external pump or electrical source. In this study, our group fabricated a capillary microfluidic device using glass and adhesive polyethylene terephthalate (PET) film, which were designed by simply patterning and cutting to make the microfluidic capillary channels. Using capillary force alone, glass microfluidic chip can control the speed of fluid-flow and the flow sequence by adjusting the width of the channel and design. In addition, each flow can push out other flow without mixing. The glass-based capillary microfluidic chip (GCMC) can automatically perform immunoassay in regular order without external devices and it provide an electrochemical signal analysis in an average of 2 min. The concentration of the prostate-specific antigen (PSA), a biomarker of prostate cancer, was measured by cyclic voltammetry (CV). In conclusion, GCMC can detect between a range of 100 pg/ml to 1 μg/ml of PSA and provide high selectivity to PSA.
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Affiliation(s)
- Myeong Jun Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Jina Yeom
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Jin-Ha Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Jeong Hyeop Shin
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Tae Hwan Kim
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Ju-Won Jeon
- Department of Applied Chemistry, Kookmin University, Seoul 02707, Korea
| | - Jeong-Geol Na
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Byung-Keun Oh
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
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Abstract
Collagen is a skeleton of native extracellular matrix (ECM) that is known to provide mechanical and structural stability. In an attempt to develop a new connective cellular model with the surrounding ECM without further experimental complications, such as the reconstitution of ECM receptors, we designed the experiments and discovered that the fibrillogenesis of membrane-bound collagen is not spontaneous as it is in the form of free collagen in bulk solution. The confocal microscopic results suggest that cholesterol is a crucial component that facilitates the fibril formation on the membrane surface. In situ X-ray and neutron reflectivity on Langmuir monolayer and solid-supported lipid bilayer models, respectively, reveal two features of cholesterol effects on the collagen fibril formation. Mainly, cholesterol increases the lateral lipid headgroup separation on the membrane surface, which promotes the association degree of collagen monomers. It also enhances the elastic modulus of the membrane to impede membrane filtration by the collagen assemblies.
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Affiliation(s)
- Minh D Phan
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Keel Yong Lee
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Jumi Lee
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Sushil K Satija
- Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
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Shin K, Shin K, Yoon S, Jung J, Hwang E, Chung H, Lee S, Jeong S. 757 Clinical efficacy of topical autophagy activator on acne-prone skin. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.771] [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: 10/24/2022]
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Kim D, Kim T, Lee S, Shin K. 001 Lymph node-fibroblastic reticular cells regulate differentiation of CD4 T cells through CD25. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.003] [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]
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Boobphahom S, Nguyet Ly M, Soum V, Pyun N, Kwon OS, Rodthongkum N, Shin K. Recent Advances in Microfluidic Paper-Based Analytical Devices toward High-Throughput Screening. Molecules 2020; 25:E2970. [PMID: 32605281 PMCID: PMC7412548 DOI: 10.3390/molecules25132970] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/17/2020] [Accepted: 06/19/2020] [Indexed: 02/06/2023] Open
Abstract
Microfluidic paper-based analytical devices (µPADs) have become promising tools offering various analytical applications for chemical and biological assays at the point-of-care (POC). Compared to traditional microfluidic devices, µPADs offer notable advantages; they are cost-effective, easily fabricated, disposable, and portable. Because of our better understanding and advanced engineering of µPADs, multistep assays, high detection sensitivity, and rapid result readout have become possible, and recently developed µPADs have gained extensive interest in parallel analyses to detect biomarkers of interest. In this review, we focus on recent developments in order to achieve µPADs with high-throughput capability. We discuss existing fabrication techniques and designs, and we introduce and discuss current detection methods and their applications to multiplexed detection assays in relation to clinical diagnosis, drug analysis and screening, environmental monitoring, and food and beverage quality control. A summary with future perspectives for µPADs is also presented.
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Affiliation(s)
- Siraprapa Boobphahom
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand;
| | - Mai Nguyet Ly
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (M.N.L.); (V.S.); (N.P.); (O.-S.K.)
| | - Veasna Soum
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (M.N.L.); (V.S.); (N.P.); (O.-S.K.)
| | - Nayoon Pyun
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (M.N.L.); (V.S.); (N.P.); (O.-S.K.)
| | - Oh-Sun Kwon
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (M.N.L.); (V.S.); (N.P.); (O.-S.K.)
| | - Nadnudda Rodthongkum
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand;
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea; (M.N.L.); (V.S.); (N.P.); (O.-S.K.)
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Cardoni L, Perkins R, Shin K, Al-Samkari H, Pighetti E, Rits S, McMahon L, Connors J, Uluer A. WS01.6 Antifibrinolytics therapy for treatment of hemoptysis in adults with cystic fibrosis; does it affect lung function? J Cyst Fibros 2020. [DOI: 10.1016/s1569-1993(20)30170-3] [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: 11/17/2022]
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Koo BS, Eun S, Shin K, Yoon H, Hong CL, Kim DH, Hong S, Kim YG, Lee CK, Yoo B, Oh JS. OP0023 PREDICTION OF REMISSION FOR EACH BIOLOGICS BASED ON PATIENT’S CLINICAL INFORMATION BEFORE STARTING BIOLOGICS USING EXPLAINABLE ARTIFICIAL INTELLIGENCE: DATA FROM THE KOREAN COLLEGE OF RHEUMATOLOGY BIOLOGICS REGISTRY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Many studies have identified predictive factors of response to biologics in patients wirh rheumatoid arthritis (RA). However, there is still a lack in using them in daily clinical practice. Therefore, it is necessary to develop a method that can assist the physician in selecting effective biologics.Objectives:The purpose of this study is to establish machine learning model that predicts remission in patients treated with biologics using data of RA patients from the Korean College of Rheumatology Biologics (KOBIO) registry, and to identify the important features that have the most influence on the response to biologics using explainable artificial intelligence (AI).Methods:A total of 1,527 patients who started with biologics such as etanercept, adalimumab, golimumab, infliximab, abatacept, and tocilizumab from December 2012 to June 2019 were enrolled. Remission was predicted using 46 variables corresponding to baseline profiles at the starting of each biologics. We used five machine learning methods such as lasso, ridge, SVM, random forest, and XGBoost. For explainability of those models, we used Shapley plot to interpret the feature importance for each biologics.Results:In all machine learning methods, the accuracy and the area under the receiver operating characteristic (AUROC) were 57.2%~74.5%, 0.547~0.747, respectively (Table 1). The accuracy and AUROC of each biologics were similar between machine learning methods. Figure 2 showed interpretation of feature importance with the Shapley plot for remission. The most important feature was age in adalimumab (younger were closer to remission), daily corticosteroid dose in etanercept, golimumab, and all TNF inhibitors (using fewer doses daily were closer to remission), baseline erythrocyte sedimentation rate in infliximab (lower ESR were closer to remission), disease duration in abatacept (longer disease durations showed difficulty determining remission), baseline c-reactive protein in tocilizumab (higher CRP were closer to remission).Table.Predicting remission for all biologics in various machine learning method.MeasureLassoRidgeSVMRandom ForestXGBoostNo info rateSampleAbataceptAccuracy74.1%74.1%70.6%71.8%68.8%70.6%216AUROC0.7250.7420.7070.6770.6470.500AdalimumabAccuracy73.6%72.0%70.4%72.0%70.4%68.8%315AUROC0.7100.7290.7000.6750.6630.500EtanerceptAccuracy72.0%72.0%70.0%71.5%70.0%68.0%250AUROC0.7410.7470.7260.7190.7040.500GolimumabAccuracy71.3%68.5%66.7%68.5%68.5%68.5%138AUROC0.7460.7270.7010.6900.6550.500InfliximabAccuracy72.8%73.5%67.6%73.5%69.1%72.5%172AUROC0.6630.6830.6160.5970.5270.500TNF inhibitorsAccuracy73.9%74.5%73.9%74.2%73.6%70.3%875AUROC0.7390.7410.7260.7470.7240.500TocilizumabAccuracy62.4%63.6%62.4%59.5%57.2%59.5%436AUROC0.6330.6400.6330.6150.5470.500Figure 2.Shapley plots and SHAP values for the feature importance from clinical information in patients with RA.Conclusion:We developed machine learning models for predicting remission as a response to each biologics in active RA patients based on their clinical profiles, and found important clinical features using explainable AI. This approach may support clinical decisions to improve treatment outcomes in patients with RA.Disclosure of Interests:None declared
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Soum V, Park S, Brilian AI, Choi JY, Lee Y, Kim W, Kwon OS, Shin K. Quantitatively controllable fluid flows with ballpoint-pen-printed patterns for programmable photo-paper-based microfluidic devices. Lab Chip 2020; 20:1601-1611. [PMID: 32249884 DOI: 10.1039/d0lc00115e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Regulating the fluid flow in microfluidic devices enables a wide range of assay protocols for analytical applications. A programmable, photo-paper-based microfluidic device fabricated by using a method of cutting and laminating, followed by printing, is reported. The flow distance of fluid in the photo-paper-based channel was linearly proportional to time. By printing silver nanoparticle (AgNP) and poly[4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole-co-tetrafluoroethylene] (PTFE) patterns on the surface of a photo-paper-based channel, we were able to either increase or decrease the fluid flow in the fabricated microfluidic devices, while maintaining the linearity in the flow distance-time relation. In comparison to the speed of fluid flow in a pristine channel, by using hydrophilic AgNP patterns, we were able to increase the speed in the channel by up to 15 times while we were able to slow the speed by a factor of 3 when using hydrophobic PTFE dots. We then further demonstrated a single-step protocol for detecting glucose and a multi-step protocol for detecting methyl paraoxon (MPO) with our methods in photo-paper-based microfluidic devices. This approach can lead to improved fluid handling techniques to achieve a wide range of complex, but programmable, assays without the need for any additional auxiliary devices for automated operation.
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Affiliation(s)
- Veasna Soum
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea.
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Ko H, Ratri MC, Kim K, Jung Y, Tae G, Shin K. Formulation of Sugar/Hydrogel Inks for Rapid Thermal Response 4D Architectures with Sugar-derived Macropores. Sci Rep 2020; 10:7527. [PMID: 32371928 PMCID: PMC7200689 DOI: 10.1038/s41598-020-64457-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 04/14/2020] [Indexed: 12/11/2022] Open
Abstract
Programmed, reshaping hydrogel architectures were fabricated from sugar/hydrogel inks via a three-dimensional printing method involving a stimuli-responsive polymer. We developed a new hydrogel ink composed of monomers (acrylamide [AAm]) and N-isopropylacrylamide [NIPAAm]), and sugar (mixture of glucose and sucrose) as a pore-generator, enabling to improve printability by increasing the ink's viscoelastic properties and induce the formation of macropores in the hydrogel architectures. This study demonstrated that creating macropores in such architectures enables rapid responses to stimuli that can facilitate four-dimensional printing. We printed bilayer structures from monomer inks to which we had added sugar, and we exposed them to processes that cross-linked the monomers and leached out the sugar to create macropores. In comparison with a conventional poly(N-isopropylacrylamide) hydrogel, the macroporous hydrogels prepared using polymerization in the presence of a high concentration of sugar showed higher swelling ratios and exhibited much faster response rates to temperature changes. We used rheometry and scanning electron microscopy to characterize the properties of these inks and hydrogels. The results suggest that this method may provide a readily available route to the rapid design and fabrication of shape-morphing hydrogel architectures with potential application in soft robotics, hydrogel actuators, and tissue engineering.
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Affiliation(s)
- Hyojin Ko
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Monica Cahyaning Ratri
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
- Department of Chemistry Education, Sanata Dharma University, Yogyakarta, 55281, Republic of Indonesia
| | - Kihoon Kim
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Yeongheon Jung
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, 04107, Republic of Korea.
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Kim K, Ratri MC, Choe G, Nam M, Cho D, Shin K. Three-dimensional, printed water-filtration system for economical, on-site arsenic removal. PLoS One 2020; 15:e0231475. [PMID: 32330139 PMCID: PMC7182265 DOI: 10.1371/journal.pone.0231475] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 03/24/2020] [Indexed: 01/19/2023] Open
Abstract
The threat of arsenic contamination to public health, particularly in developing countries, has become a serious problem. Millions of people in their daily lives are still highly dependent on groundwater containing high levels of arsenic, which causes excessive exposure to this toxic element, due to the high cost and lack of water-treatment infrastructures. Therefore, a technique for large-scale treatment of water in rural areas to remove arsenic is needed and should be low-cost, be easily customized, and not rely on electrical power. In this study, in an effort to fulfill those requirements, we introduce a three-dimensional (3D), printed water-filtration system for arsenic removal. Three-dimensional printing can provide a compact, customized filtration system that can fulfill the above-mentioned requirements and that can be made from plastic materials, which are abundant. Armed with the versatility of 3D printing, we were able to design the internal surface areas of filters, after which we modified the surfaces of the 3D, printed filters by using iron (III) oxide as an adsorbent for arsenite. We investigated the effects of the controlled surface area on the flow rate and the deposition of the adsorbent, which are directly related to the adsorption of arsenic. We conducted isotherm studies to quantify the adsorption of arsenic on our 3D, printed filtration system.
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Affiliation(s)
- Kihoon Kim
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Monica Cahyaning Ratri
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
- Department of Chemistry Education, Sanata Dharma University, Yogyakarta, Republic of Indonesia
| | - Giho Choe
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Myeongyun Nam
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Daehyoung Cho
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces, Sogang University, Seoul, Republic of Korea
- * E-mail:
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Roh D, Shin K, Kim WI, Yang MY, Lee WK, Kim HS, Ko HC, Kim BS, Kim MB. Comparison of dermoscopic features between congenital and acquired acral melanocytic nevi in Korean patients. J Eur Acad Dermatol Venereol 2020; 34:1004-1009. [PMID: 31733082 DOI: 10.1111/jdv.16089] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 10/30/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND The dermoscopic patterns of acral melanocytic nevi (AMNs) are crucial in differentiating them from acral melanoma. Several studies have reported the dermoscopic patterns of acquired acral melanocytic nevi (AAMNs). However, few have investigated the dermoscopic patterns of congenital acral melanocytic nevi (CAMNs). OBJECTIVE To compare the clinical and dermoscopic features of CAMNs and AAMNs. METHODS The present study included 43 patients with CAMNs and 40 with AAMNs. We reviewed their medical records as well as their clinical and dermoscopic findings. RESULTS Congenital acral melanocytic nevis were more asymmetrical than AAMNs (P = 0.002) and presented more frequently as comma-shaped (P = 0.005). Regarding dermoscopic findings, globular pattern (55.8%) was the most common feature of CAMNs, while parallel furrow pattern (37.5%) was the most common feature of AAMNs. The presence of fibrillar, globular, and parallel ridge patterns, and diffuse multi-component pigmentation differed significantly between the groups (P < 0.05). Furthermore, CAMNs showed melanoma-specific dermoscopic patterns, such as parallel ridge (18.6%) and diffuse multi-component pigmentation (25.6%). CONCLUSION The dermoscopic patterns of CAMNs and AAMNs differed markedly. In terms of dermoscopic patterns, CAMNs resembled acral melanoma more often than AAMNs did.
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Affiliation(s)
- D Roh
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - K Shin
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - W-I Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - M-Y Yang
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - W-K Lee
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - H-S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea
| | - H-C Ko
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Department of Dermatology, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - B-S Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - M-B Kim
- Department of Dermatology, School of Medicine, Pusan National University, Busan, Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
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Yukird J, Soum V, Kwon OS, Shin K, Chailapakul O, Rodthongkum N. 3D paper-based microfluidic device: a novel dual-detection platform of bisphenol A. Analyst 2020; 145:1491-1498. [DOI: 10.1039/c9an01738k] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel platform of 3D paper-based microfluidic device (μPADs) was fabricated by a digital plotter for high precision analysis of bisphenol A using electrochemistry along with LDI-MS detection.
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Affiliation(s)
- Jutiporn Yukird
- Nanoscience and technology program
- Graduate School
- Chulalongkorn University
- Patumwan
- Thailand
| | - Veasna Soum
- Department of Chemistry and Institute of Biological Interfaces
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Oh-Sun Kwon
- Department of Chemistry and Institute of Biological Interfaces
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Kwanwoo Shin
- Department of Chemistry and Institute of Biological Interfaces
- Sogang University
- Seoul 04107
- Republic of Korea
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Research Unit
- Department of Chemistry
- Faculty of Science
- Chulalongkorn University
- Patumwan
| | - Nadnudda Rodthongkum
- Metallurgy and Materials Science Research Institute
- Chulalongkorn University
- Patumwan
- Thailand
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Lee S, Kim IH, Shin K. Efficacy of capecitabine and oxaliplatin versus S-1 as adjuvant chemotherapy in gastric cancer after D2 lymph node dissection according to lymph node ratio and N stage. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz422.026] [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: 11/13/2022] Open
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Park S, Kim IH, Lee J, Kim H, Shin K. The prognostic value of higher absolute lymphocyte counts for patients with surgically resected non-advanced gastric cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.100] [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: 11/13/2022] Open
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Shin K, Park H, Kim B, Lee Y, Kim S, Park K. LB1120 Naturally occurring phenolic compounds protect human keratinocytes against diesel exhaust particle-induced cell damage. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.087] [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: 11/15/2022]
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Soum V, Park S, Brilian AI, Kwon OS, Shin K. Programmable Paper-Based Microfluidic Devices for Biomarker Detections. Micromachines (Basel) 2019; 10:E516. [PMID: 31382502 PMCID: PMC6722603 DOI: 10.3390/mi10080516] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/29/2019] [Accepted: 08/01/2019] [Indexed: 12/13/2022]
Abstract
Recent advanced paper-based microfluidic devices provide an alternative technology for the detection of biomarkers by using affordable and portable devices for point-of-care testing (POCT). Programmable paper-based microfluidic devices enable a wide range of biomarker detection with high sensitivity and automation for single- and multi-step assays because they provide better control for manipulating fluid samples. In this review, we examine the advances in programmable microfluidics, i.e., paper-based continuous-flow microfluidic (p-CMF) devices and paper-based digital microfluidic (p-DMF) devices, for biomarker detection. First, we discuss the methods used to fabricate these two types of paper-based microfluidic devices and the strategies for programming fluid delivery and for droplet manipulation. Next, we discuss the use of these programmable paper-based devices for the single- and multi-step detection of biomarkers. Finally, we present the current limitations of paper-based microfluidics for biomarker detection and the outlook for their development.
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Affiliation(s)
- Veasna Soum
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Sooyong Park
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Albertus Ivan Brilian
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Oh-Sun Kwon
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea
| | - Kwanwoo Shin
- Department of Chemistry, Institute of Biological Interfaces, Sogang University, Seoul 04107, Korea.
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