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Lee S, Jang B, Hwang J, Lee Y, Cho S, Yang H, Yun JH, Shin DH, Lee W, Oh ES. Everolimus exerts anticancer effects through inhibiting the interaction of matrix metalloproteinase-7 with syndecan-2 in colon cancer cells. Am J Physiol Cell Physiol 2024; 326:C1067-C1079. [PMID: 38314724 DOI: 10.1152/ajpcell.00669.2023] [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: 12/05/2023] [Revised: 01/28/2024] [Accepted: 01/28/2024] [Indexed: 02/07/2024]
Abstract
Previous work showed that matrix metalloproteinase-7 (MMP-7) regulates colon cancer activities through an interaction with syndecan-2 (SDC-2) and SDC-2-derived peptide that disrupts this interaction and exhibits anticancer activity in colon cancer. Here, to identify potential anticancer agents, a library of 1,379 Food and Drug Administration (FDA)-approved drugs that interact with the MMP-7 prodomain were virtually screened by protein-ligand docking score analysis using the GalaxyDock3 program. Among five candidates selected based on their structures and total energy values for interacting with the MMP-7 prodomain, the known mechanistic target of rapamycin kinase (mTOR) inhibitor, everolimus, showed the highest binding affinity and the strongest ability to disrupt the interaction of the MMP-7 prodomain with the SDC-2 extracellular domain in vitro. Everolimus treatment of the HCT116 human colon cancer cell line did not affect the mRNA expression levels of MMP-7 and SDC-2 but reduced the adhesion of cells to MMP-7 prodomain-coated plates and the cell-surface localization of MMP-7. Thus, everolimus appears to inhibit the interaction between MMP-7 and SDC-2. Everolimus treatment of HCT116 cells also reduced their gelatin-degradation activity and anticancer activities, including colony formation. Interestingly, cells treated with sirolimus, another mTOR inhibitor, triggered less gelatin-degradation activity, suggesting that this inhibitory effect of everolimus was not due to inhibition of the mTOR pathway. Consistently, everolimus inhibited the colony-forming ability of mTOR-resistant HT29 cells. Together, these data suggest that, in addition to inhibiting mTOR signaling, everolimus exerts anticancer activity by interfering with the interaction of MMP-7 and SDC-2, and could be a useful therapeutic anticancer drug for colon cancer.NEW & NOTEWORTHY The utility of cancer therapeutics targeting the proteolytic activities of MMPs is limited because MMPs are widely distributed throughout the body and involved in many different aspects of cell functions. This work specifically targets the activation of MMP-7 through its interaction with syndecan-2. Notably, everolimus, a known mTOR inhibitor, blocked this interaction, demonstrating a novel role for everolimus in inhibiting mTOR signaling and impairing the interaction of MMP-7 with syndecan-2 in colon cancer.
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Affiliation(s)
- Seohyeon Lee
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Bohee Jang
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Jisun Hwang
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Yejin Lee
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Subin Cho
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Hyeonju Yang
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Ji-Hye Yun
- PCG-Biotech, Ltd. Yonsei Engineering Research Park 114A, Yonsei University, Seoul, Republic of Korea
- Center for Genome Engineering, Institute for Basic Science, Daejeon, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Weontae Lee
- PCG-Biotech, Ltd. Yonsei Engineering Research Park 114A, Yonsei University, Seoul, Republic of Korea
| | - Eok-Soo Oh
- Department of Life Sciences, Ewha Womans University, Seoul, Republic of Korea
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Kim J, Ryu G, Seo J, Go M, Kim G, Yi S, Kim S, Lee H, Lee JY, Kim HS, Park MC, Shin DH, Shim H, Kim W, Lee SY. 5-aminosalicylic acid suppresses osteoarthritis through the OSCAR-PPARγ axis. Nat Commun 2024; 15:1024. [PMID: 38310093 PMCID: PMC10838344 DOI: 10.1038/s41467-024-45174-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 01/16/2024] [Indexed: 02/05/2024] Open
Abstract
Osteoarthritis (OA) is a progressive and irreversible degenerative joint disease that is characterized by cartilage destruction, osteophyte formation, subchondral bone remodeling, and synovitis. Despite affecting millions of patients, effective and safe disease-modifying osteoarthritis drugs are lacking. Here we reveal an unexpected role for the small molecule 5-aminosalicylic acid (5-ASA), which is used as an anti-inflammatory drug in ulcerative colitis. We show that 5-ASA competes with extracellular-matrix collagen-II to bind to osteoclast-associated receptor (OSCAR) on chondrocytes. Intra-articular 5-ASA injections ameliorate OA generated by surgery-induced medial-meniscus destabilization in male mice. Significantly, this effect is also observed when 5-ASA was administered well after OA onset. Moreover, mice with DMM-induced OA that are treated with 5-ASA at weeks 8-11 and sacrificed at week 12 have thicker cartilage than untreated mice that were sacrificed at week 8. Mechanistically, 5-ASA reverses OSCAR-mediated transcriptional repression of PPARγ in articular chondrocytes, thereby suppressing COX-2-related inflammation. It also improves chondrogenesis, strongly downregulates ECM catabolism, and promotes ECM anabolism. Our results suggest that 5-ASA could serve as a DMOAD.
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Affiliation(s)
- Jihee Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Republic of Korea
| | - Gina Ryu
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Jeongmin Seo
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Miyeon Go
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Gyungmin Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Sol Yi
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Suwon Kim
- Department of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Hana Lee
- Department of Biomedical Engineering, Yonsei University, Wonju, Republic of Korea
| | - June-Yong Lee
- Department of Microbiology and Immunology, Institute for Immunology and Immunological Diseases, and Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Yonsei University, Wonju, Republic of Korea
| | - Min-Chan Park
- Division of Rheumatology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Hae Shin
- Department of Pharmacy, Ewha Womans University, Seoul, Republic of Korea
| | - Hyunbo Shim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Wankyu Kim
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul, Republic of Korea.
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, Republic of Korea.
- Multitasking Macrophage Research Center, Ewha Womans University, Seoul, Republic of Korea.
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Jo S, Jang EH, Kim HY, Lee K, Kim MS, Shin DH. A tryptophan-based assay method to search regulatory compounds for transcriptionally controlled tumor protein. Biochem Biophys Res Commun 2024; 692:149363. [PMID: 38071892 DOI: 10.1016/j.bbrc.2023.149363] [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: 11/21/2023] [Revised: 11/27/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024]
Abstract
Transcriptionally controlled tumor protein (TCTP) is a highly conserved protein performing a large number of cellular functions by binding with various partner proteins. The importance of its roles in many diseases requires an assay method to find regulatory compounds. However, the molecular characteristics of TCTP made it difficult to search for chemicals interacting with it. In this study, a tryptophan-based assay method was designed and Y151W mutant TCTP was constructed to search binding chemicals. Since there is no tryptophan in the native sequence of TCTP, the incorporation of tryptophan in the Y151W mutant was very effective to establish the method. A flavonoid library was employed to the assay with the method. With the native and Y151W mutant TCTPs, three flavonoids such as morin, myricetin and isobavachalcone have been found to interact with TCTP. Combined with native gel electrophoresis, the binding region of isobavachalcone was suggested to be the flexible loop of TCTP. This approach can be easily applicable to find binding compounds of proteins with similar molecular characteristics of TCTP.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Eun-Hwa Jang
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Hwa Young Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Kyunglim Lee
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, 03760, Republic of Korea.
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, 03760, Republic of Korea.
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Jo S, Kim MS, Kim HY, Kim S, Kam H, Choi H, Shin DH. Amentoflavone, a potent natural matrix metalloproteinase 2 inhibitor. Nat Prod Res 2023:1-8. [PMID: 38112430 DOI: 10.1080/14786419.2023.2294108] [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: 06/15/2023] [Accepted: 12/04/2023] [Indexed: 12/21/2023]
Abstract
Gelatinase A (MMP-2) has been studied and proven to play a vital role in the intrusion and metastasis of cancer. Flavonoids influence on molecular and cellular functions of MMP-2 and thus a systematic investigation of flavonoids against the metalloproteolytic activity of MMP-2 has been performed in this study. A fluorescence resonance energy transfer method was used to investigate the inhibitory activities of various flavonoids. Flavone, flavonol and isobavachalcone derivatives showed their inhibitory activity against MMP-2. Surprisingly, the most effective inhibitor was Amentoflavone and its blocking function was superior to other flavonoids. Its IC50 value was 0.689 μM. An induced-fit docking study was carried out to survey its extraordinary activity. The binding mode of Amentoflavone is quite similar to that of (2 ∼ {S})-2-[2-[4-(4-methoxyphenyl) phenyl] sulfanylphenyl] pentanedioic acid complexed with MMP-9. Amentoflavone interacts with the functional zinc and catalytic residue, Glu202. Therefore, the docking study reasonably confirmed the strong inhibitory activity of Amentoflavone.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Hwa-Young Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Suwon Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Heejin Kam
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Haein Choi
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
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Jang EH, Bae HD, Jeon Y, Shin DH, Kang S, Lee K. Meclizine, a piperazine-derivative antihistamine, binds to dimerized translationally controlled tumor protein and attenuates allergic reactions in a mouse model. Biomed Pharmacother 2023; 157:114072. [PMID: 36493627 DOI: 10.1016/j.biopha.2022.114072] [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: 10/30/2022] [Revised: 11/27/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Translationally controlled tumor protein (TCTP), a highly conserved protein present in most eukaryotes, is involved in numerous biological processes. Only the dimeric form of TCTP (dTCTP) formed during inflammatory conditions exhibits cytokine-like activity. Therefore, dTCTP is considered as a therapeutic target for allergic diseases. Because monomeric TCTP (mTCTP) and dTCTP share a high topological similarity, we hypothesized that small molecules interacting with mTCTP would also bind to dTCTP and interfere with dTCTP-based cellular processes. In this study, nine compounds listed in the literature as interacting with mTCTP were investigated for their ability to suppress the activity of extracellular dTCTP in bronchial epithelial cells. It was found that one of the nine, meclizine, a piperazine-derivative antihistamine, significantly reduced IL-8 release and suppressed the NF-κB pathway. The direct interaction of meclizine with dTCTP was confirmed by surface plasmon resonance (SPR). Also, we found that meclizine can attenuate ovalbumin (OVA)-induced airway inflammation in mice. Therefore, meclizine might be a potential anti-allergic drug as an inhibitor for dTCTP.
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Affiliation(s)
- Eun-Hwa Jang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, South Korea
| | - Hae-Duck Bae
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, South Korea
| | - Yejin Jeon
- Bone Science R&D Center, 3, Magokjungang 12-ro, Gangseo-gu, Seoul 07789, South Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, South Korea
| | - Soosung Kang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, South Korea
| | - Kyunglim Lee
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, South Korea.
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Lee B, Kim BG, Baraki TG, Kim JS, Lee YJ, Lee SJ, Hong SJ, Ahn CM, Shin DH, Kim BK, Ko YG, Choi DH, Honh MK, Jang YS. Stent expansion evaluated by optical coherence tomography and subsequent outcomes. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Regarding stent expansion indexes, previous optical coherence tomography (OCT) studies have shown minimal stent area (MSA) to be most predictive of adverse events.
Purpose
We sought to evaluate the impact of various stent expansion indexes by post-stent OCT on long-term clinical outcomes, and hence to find OCT-defined optimal stent expansion criteria.
Methods
Of the patients registered in the Yonsei OCT registry, a total of 1071 patients with 1123 native coronary artery lesions treated with new-generation drug-eluting stents under the OCT guidance and analyzable final post-stent OCT were included. Stent expansion indexes and different suboptimal stent expansion criteria were evaluated for their association with device-oriented clinical endpoints (DoCE) including cardiac death, target vessel-related myocardial infarction (TVMI) or stent thrombosis, and target lesion revascularization. Major safety events (MSE) included cardiac death, TVMI or stent thrombosis.
Results
The median follow-up period was 40.6 (interquartile range 22.0–50.0) months. As a continuous variable, MSA, adaptive volumetric stent expansion (stent volume/adaptive reference lumen volume) and overall volumetric stent expansion (stent volume/post-stent lumen volume) were significantly predictive of DoCE. As a categorical criteria, MSA <5.0 mm2 (hazard ratio [HR] 3.80; 95% confidence interval [CI] 1.53–9.45), MSA/distal reference lumen area <90% (HR 2.13; 95% CI 1.10–4.14), and overall volumetric stent expansion ≥96.6% (HR 2.38; 95% CI 1.09–5.22) were independently associated with DoCE after adjusting for confounders, and a total malapposition volume ≥7.0 mm3 (HR 3.38; 95% CI 1.05–10.93) was linked to MSE.
Conclusions
This OCT study highlights that sufficient stent expansion to achieve adequate absolute MSA and relative MSA by distal reference lumen area and alleviate significant malapposition is important to improve clinical outcome, but overall stent overexpansion may have deleterious effect.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- B Lee
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - B G Kim
- Sanggye Paik Hospital , Seoul , Korea (Republic of)
| | - T G Baraki
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J S Kim
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y J Lee
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - S J Lee
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - S J Hong
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - C M Ahn
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - D H Shin
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - B K Kim
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y G Ko
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - D H Choi
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - M K Honh
- Severance Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y S Jang
- Cha Bundang Medical Center, cardiology , Seongnam , Korea (Republic of)
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Jo S, Signorile L, Kim S, Kim MS, Huertas O, Insa R, Reig N, Shin DH. A Study of Drug Repurposing to Identify SARS-CoV-2 Main Protease (3CLpro) Inhibitors. Int J Mol Sci 2022; 23:ijms23126468. [PMID: 35742913 PMCID: PMC9224295 DOI: 10.3390/ijms23126468] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022] Open
Abstract
The outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) wreaked havoc all over the world. Although vaccines for the disease have recently become available and started to be administered to the population in various countries, there is still a strong and urgent need for treatments to cure COVID-19. One of the safest and fastest strategies is represented by drug repurposing (DRPx). In this study, thirty compounds with known safety profiles were identified from a chemical library of Phase II-and-up compounds through a combination of SOM Biotech's Artificial Intelligence (AI) technology, SOMAIPRO, and in silico docking calculations with third-party software. The selected compounds were then tested in vitro for inhibitory activity against SARS-CoV-2 main protease (3CLpro or Mpro). Of the thirty compounds, three (cynarine, eravacycline, and prexasertib) displayed strong inhibitory activity against SARS-CoV-2 3CLpro. VeroE6 cells infected with SARS-CoV-2 were used to find the cell protection capability of each candidate. Among the three compounds, only eravacycline showed potential antiviral activities with no significant cytotoxicity. A further study is planned for pre-clinical trials.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul 03760, Korea; (S.J.); (S.K.); (M.-S.K.)
| | - Luca Signorile
- SOM Innovation Biotech SA., Baldiri Reixac, 4, 08028 Barcelona, Spain; (L.S.); (O.H.); (R.I.)
| | - Suwon Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul 03760, Korea; (S.J.); (S.K.); (M.-S.K.)
| | - Mi-Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul 03760, Korea; (S.J.); (S.K.); (M.-S.K.)
| | - Oscar Huertas
- SOM Innovation Biotech SA., Baldiri Reixac, 4, 08028 Barcelona, Spain; (L.S.); (O.H.); (R.I.)
| | - Raúl Insa
- SOM Innovation Biotech SA., Baldiri Reixac, 4, 08028 Barcelona, Spain; (L.S.); (O.H.); (R.I.)
| | - Núria Reig
- SOM Innovation Biotech SA., Baldiri Reixac, 4, 08028 Barcelona, Spain; (L.S.); (O.H.); (R.I.)
- Correspondence: (N.R.); (D.H.S.); Tel.: +34-93-402-0150 (N.R.); +82-2-3277-4502 (D.H.S.); Fax: +34-93-403-4510 (N.R.); +82-2-3277-2851 (D.H.S.)
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul 03760, Korea; (S.J.); (S.K.); (M.-S.K.)
- Correspondence: (N.R.); (D.H.S.); Tel.: +34-93-402-0150 (N.R.); +82-2-3277-4502 (D.H.S.); Fax: +34-93-403-4510 (N.R.); +82-2-3277-2851 (D.H.S.)
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Kim S, Jo S, Kim MS, Shin DH. A study of inhibitors of d- glycero-β-d- manno-heptose-1-phosphate adenylyltransferase from Burkholderia pseudomallei as a potential antibiotic target. J Enzyme Inhib Med Chem 2021; 36:776-784. [PMID: 33733972 PMCID: PMC7993394 DOI: 10.1080/14756366.2021.1900166] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
d-Glycero-β-d-manno-heptose-1-phosphate adenylyltransferase from Burkholderia pseudomallei (BpHldC) is the fourth enzyme in the ADP‐l‐glycero‐β‐d‐manno‐heptose biosynthesis pathway producing a lipopolysaccharide core. Therefore, BpHldC is an anti-melioidosis target. Three ChemBridge compounds purchased from ChemBridge Corporation (San Diego, CA) were found to have an effective inhibitory activity on BpHldC. Interestingly, ChemBridge 7929959 was the most effective compound due to the presence of the terminal benzyl group. The enzyme kinetic study revealed that most of them show mixed type inhibitory modes against ATP and βG1P. The induced-fit docking indicated that the medium affinity of ChemBridge 7929959 is originated from its benzyl group occupying the substrate-binding pocket of BpHldC. The inhibitory role of terminal aromatic groups was proven with ChemBridge 7570508. Combined with the previous study, ChemBridge 7929959 is found to work as a dual inhibitor against both HldC and HddC. Therefore, three ChemBridge compounds can be developed as a potent anti-melioidosis agent with a novel inhibitory concept.
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Affiliation(s)
- Suwon Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Seri Jo
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
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Jo S, Kim S, Yoo J, Kim MS, Shin DH. A Study of 3CLpros as Promising Targets against SARS-CoV and SARS-CoV-2. Microorganisms 2021; 9:756. [PMID: 33916747 PMCID: PMC8065850 DOI: 10.3390/microorganisms9040756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/14/2022] Open
Abstract
The outbreak of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), results in serious chaos all over the world. In addition to the available vaccines, the development of treatments to cure COVID-19 should be done quickly. One of the fastest strategies is to use a drug-repurposing approach. To provide COVID-19 patients with useful information about medicines currently being used in clinical trials, twenty-four compounds, including antiviral agents, were selected and assayed. These compounds were applied to verify the inhibitory activity for the protein function of 3CLpros (main proteases) of SARS-CoV and SARS-CoV-2. Among them, viral reverse-transcriptase inhibitors abacavir and tenofovir revealed a good inhibitory effect on both 3CLpros. Intriguingly, sildenafil, a cGMP-specific phosphodiesterase type 5 inhibitor also showed significant inhibitory function against them. The in silico docking study suggests that the active-site residues located in the S1 and S2 sites play key roles in the interactions with the inhibitors. The result indicates that 3CLpros are promising targets to cope with SAR-CoV-2 and its variants. The information can be helpful to design treatments to cure patients with COVID-19.
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Affiliation(s)
| | | | | | | | - Dong Hae Shin
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, 52, Ewhayeodae-gil, Seoul 03760, Korea; (S.J.); (S.K.); (J.Y.); (M.-S.K.)
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Kim S, Jo S, Kim MS, Shin DH. A study of Rose Bengal against a 2-keto-3-deoxy-d- manno-octulosonate cytidylyltransferase as an antibiotic candidate. J Enzyme Inhib Med Chem 2021; 35:1414-1421. [PMID: 32588669 PMCID: PMC7717453 DOI: 10.1080/14756366.2020.1751150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Frequent occurrences of multi-drug resistance of pathogenic Gram-negative bacteria threaten human beings. The CMP-2-keto-3-deoxy-d-manno-octulosonic acid biosynthesis pathway is one of the new targets for antibiotic design. 2-Keto-3-deoxy-d-manno-octulosonate cytidylyltransferase (KdsB) is the key enzyme in this pathway. KdsB proteins from Burkholderia pseudomallei (Bp), B. thailandensis (Bt), Pseudomonas aeruginosa (Pa), and Chlamydia psittaci (Cp) have been assayed to find inhibitors. Interestingly, Rose Bengal (4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodofluorescein) was turned out to be an inhibitor of three KdsBs (BpKdsB, BtKdsB, and PaKdsB) with promising IC50 values and increased thermostability. The inhibitory enzyme kinetics of Rose Bengal revealed that it is competitive with 2-keto-3-deoxy-manno-octulosonic acid (KDO) but non-competitive against cytidine 5′-triphosphate (CTP). Induced-fit docking analysis of PaKdsB revealed that Arg160 and Arg185 together with other interactions in the substrate binding site seemed to play an important role in binding with Rose Bengal. We suggest that Rose Bengal can be used as the scaffold to develop potential antibiotics.
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Affiliation(s)
- Suwon Kim
- Graduate School of Pharmaceutical Sciences, Ewha Woman's University, Seoul, Republic of Korea
| | - Seri Jo
- Graduate School of Pharmaceutical Sciences, Ewha Woman's University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- Graduate School of Pharmaceutical Sciences, Ewha Woman's University, Seoul, Republic of Korea
| | - Dong Hae Shin
- Graduate School of Pharmaceutical Sciences, Ewha Woman's University, Seoul, Republic of Korea
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11
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Abstract
African swine fever (ASF) caused by the ASF virus (ASFV) is the most hazardous swine disease. Since a huge number of pigs have been slaughtered to avoid a pandemic spread, intense studies on the disease should be followed quickly. Recent studies reported that flavonoids have various antiviral activity including ASFV. In this report, ASFV protease was selected as an antiviral target protein to cope with ASF. With a FRET (Fluorescence resonance energy transfer) method, ASFV protease was assayed with a flavonoid library which was composed of sixty-five derivatives classified based on ten different scaffolds. Of these, the flavonols scaffold contains a potential anti-ASFV protease activity. The most prominent flavonol was myricetin with IC50 of 8.4 μM. Its derivative, myricitrin, with the rhamnoside moiety was also showed the profound inhibitory effect on ASFV protease. These two flavonols apparently provide a way to develop anti-ASFV agents based on their scaffold.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Suwon Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
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12
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Abstract
There were severe panics caused by Severe Acute Respiratory Syndrome (SARS) and Middle-East Respiratory Syndrome-Coronavirus. Therefore, researches targeting these viruses have been required. Coronaviruses (CoVs) have been rising targets of some flavonoids. The antiviral activity of some flavonoids against CoVs is presumed directly caused by inhibiting 3C-like protease (3CLpro). Here, we applied a flavonoid library to systematically probe inhibitory compounds against SARS-CoV 3CLpro. Herbacetin, rhoifolin and pectolinarin were found to efficiently block the enzymatic activity of SARS-CoV 3CLpro. The interaction of the three flavonoids was confirmed using a tryptophan-based fluorescence method, too. An induced-fit docking analysis indicated that S1, S2 and S3' sites are involved in binding with flavonoids. The comparison with previous studies showed that Triton X-100 played a critical role in objecting false positive or overestimated inhibitory activity of flavonoids. With the systematic analysis, the three flavonoids are suggested to be templates to design functionally improved inhibitors.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Suwon Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
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13
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Park J, Kim MS, Park T, Kim YH, Shin DH. Crystal structure of pharmaceutical-grade human serum albumin. Int J Biol Macromol 2020; 166:221-228. [PMID: 33190823 DOI: 10.1016/j.ijbiomac.2020.10.152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/13/2020] [Accepted: 10/20/2020] [Indexed: 01/08/2023]
Abstract
Human serum albumin (HSA) is the most abundant protein in human plasma and plays versatile biological role. HSA has been widely used to treat several diseases and develop biocompatible biomaterials for biomedical applications. However, pharmaceutical-grade HSA (p-HSA) showed the altered oxidative and ligand-binding properties compare to native HSA. To investigate the influences of the manufacturing process on the molecular state of HSA, we determined the first crystal structure of p-HSA using the commercial HSA solution without any defatting step and further purification and carried out mass spectrometry to identify bound ligands. The crystal structure of p-HSA revealed that medium- and long-chain fatty acids and tryptophan are bound to p-HSA and one free cysteine is oxidized to cysteine-sulfenic acid. The mass spectra of p-HSA also confirmed the existence of fatty acids and tryptophan in p-HSA. Our results enhance understanding of the molecular state of p-HSA and can be utilized to produce p-HSA solutions and HSA-based biomaterials that has a higher biorelevance.
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Affiliation(s)
- Jimin Park
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea; School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea
| | - Taeseong Park
- Biomedical Research Institute, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea
| | - Young Hwan Kim
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea.
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Abstract
Coronavirus disease 2019 (COVID-19) has been a pandemic disease of which the termination is not yet predictable. Currently, researches to develop vaccines and treatments is going on globally to cope with this disastrous disease. Main protease (3CLpro) from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is one of the good targets to find antiviral agents before vaccines are available. Some flavonoids are known to inhibit 3CLpro from SARS-CoV which causes SARS. Since their sequence identity is 96%, a similar approach was performed with a flavonoid library. Baicalin, herbacetin, and pectolinarin have been discovered to block the proteolytic activity of SARS-CoV-2 3CLpro. An in silico docking study showed that the binding modes of herbacetin and pectolinarin are similar to those obtained from the catalytic domain of SARS-CoV 3CLpro. However, their binding affinities are different due to the usage of whole SARS-CoV-2 3CLpro in this study. Baicalin showed an effective inhibitory activity against SARS-CoV-2 3CLpro and its docking mode is different from those of herbacetin and pectolinarin. This study suggests important scaffolds to design 3CLpro inhibitors to develop antiviral agents or health-foods and dietary supplements to cope with SARS-CoV-2.
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Affiliation(s)
- Seri Jo
- College of Pharmacy, Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Suwon Kim
- College of Pharmacy, Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dae Yong Kim
- N-BIOTEK, Bucheon-Si, Gyeong-gi, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy, Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Graduates School of Pharmaceutical Sciences, Ewha W. University, Seoul, Republic of Korea
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15
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Lee H, Kim MS, Lee JS, Cho H, Park J, Hae Shin D, Lee K. Flexible loop and helix 2 domains of TCTP are the functional domains of dimerized TCTP. Sci Rep 2020; 10:197. [PMID: 31932619 PMCID: PMC6957494 DOI: 10.1038/s41598-019-57064-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 12/19/2019] [Indexed: 01/26/2023] Open
Abstract
Translationally controlled tumor protein (TCTP), also called histamine releasing factor, is an evolutionarily conserved multifunctional protein in eukaryotes. We previously reported that extracellular TCTP acquires its cytokine-like function following dimerization. This study aims to identify the functional domain involved in the cytokine-like function of dimerized TCTP (dTCTP). We performed X-ray crystallographic studies and a deletion mutant of dTCTP which lacks the flexible loop domain. Synthetic peptides corresponding to TCTP domains and antibodies developed against them were examined for the anti-allergic effect. In an OVA-induced airway inflammation mouse model, inhibitory effect of synthetic peptides was evaluated. dTCTP was mediated by dimers between Cys172s of TCTP monomers. Synthetic peptides corresponding to the flexible loop and helix 2 domain of TCTP, and antibodies against them inhibited dTCTP-induced IL-8 release. In particular, the TCTP mutant lacking the flexible loop domain decreased the inflammatory cytokine activity of dTCTP. We conclude that the flexible loop and helix 2 domain of TCTP are the functional domains of dTCTP. They may have the potential to be therapeutic targets in the suppression of allergic reactions induced by dTCTP.
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Affiliation(s)
- Heewon Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Mi-Sun Kim
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Ji-Sun Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Hyunsoo Cho
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Jimin Park
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Dong Hae Shin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea.
| | - Kyunglim Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea.
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Kim S, Kim MS, Jo S, Shin DH. GTP Preference of d-Glycero-α-d- manno-Heptose-1-Phosphate Guanylyltransferase from Yersinia pseudotuberculosis. Int J Mol Sci 2019; 21:ijms21010280. [PMID: 31906195 PMCID: PMC6981941 DOI: 10.3390/ijms21010280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 12/22/2022] Open
Abstract
d-glycero-α-d-manno-heptose-1-phosphate guanylyltransferase (HddC) is the fourth enzyme synthesizing a building component of lipopolysaccharide (LPS) of Gram-negative bacteria. Since HddC is a potential new target to develop antibiotics, the analysis of the structural and functional relationship of the complex structure will lead to a better idea to design inhibitory compounds. X-ray crystallography and biochemical experiments to elucidate the guanine preference were performed based on the multiple sequence alignment. The crystal structure of HddC from Yersinia pseudotuberculosis (YPT) complexed with guanosine 5′-(β-amino)-diphosphate (GMPPN) has been determined at 1.55 Å resolution. Meanwhile, the mutants revealed their reduced guanine affinity, instead of acquiring noticeable pyrimidine affinity. The complex crystal structure revealed that GMPPN is docked in the catalytic site with the aid of Glu80 positioning on the conserved motif EXXPLGTGGA. In the HddC family, this motif is expected to recruit nucleotides through interacting with bases. The crystal structure shows that oxygen atoms of Glu80 forming two hydrogen bonds play a critical role in interaction with two nitrogen atoms of the guanine base of GMPPN. Interestingly, the binding of GMPPN induced the formation of an oxyanion hole-like conformation on the L(S/A/G)X(S/G) motif and consequently influenced on inducing a conformational shift of the region around Ser55.
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Jo S, Kim H, Kim S, Shin DH, Kim M. Characteristics of flavonoids as potent MERS-CoV 3C-like protease inhibitors. Chem Biol Drug Des 2019; 94:2023-2030. [PMID: 31436895 PMCID: PMC7162010 DOI: 10.1111/cbdd.13604] [Citation(s) in RCA: 165] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 07/18/2019] [Accepted: 07/30/2019] [Indexed: 12/16/2022]
Abstract
Middle East respiratory syndrome-coronavirus (MERS-CoV) is a zoonotic virus transmitted between animals and human beings. It causes MERS with high mortality rate. However, no vaccine or specific treatment is currently available. Since antiviral activity of some flavonoids is known, we applied a flavonoid library to probe inhibitory compounds against MERS-CoV 3C-like protease (3CLpro). Herbacetin, isobavachalcone, quercetin 3-β-d-glucoside and helichrysetin were found to block the enzymatic activity of MERS-CoV 3CLpro. The binding of the four flavonoids was also confirmed independently using a tryptophan-based fluorescence method. The systematic comparison of the binding affinity of flavonoids made it possible to infer their scaffolds and functional groups required to bind with MERS-CoV 3CLpro. An induced-fit docking analysis revealed that S1 and S2 sites play a role in interaction with flavonoids. The experimental and computational study showed that flavonol and chalcone are favourite scaffolds to bind with the catalytic site of MERS-CoV 3CLpro. It was also deduced that some flavonoid derivatives with hydrophobic or carbohydrate attached to their core structures have a good inhibitory effect. Therefore, we suggest that flavonoids with these characteristics can be used as templates to develop potent MERS-CoV 3CLpro inhibitors.
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Affiliation(s)
- Seri Jo
- College of Pharmacy and Graduates School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
| | - Hyojin Kim
- College of Pharmacy and Graduates School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
| | - Suwon Kim
- College of Pharmacy and Graduates School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
| | - Dong Hae Shin
- College of Pharmacy and Graduates School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
| | - Mi‐Sun Kim
- College of Pharmacy and Graduates School of Pharmaceutical SciencesEwha Womans UniversitySeoulKorea
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18
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Kim S, Jo S, Kim MS, Shin DH. A Study of a Potent Inhibitor Against a GDP-6-Deoxy-α-d- Manno-Heptose Biosynthesis Pathway as Antibiotic Candidates. Microb Drug Resist 2019; 26:385-390. [PMID: 31613705 DOI: 10.1089/mdr.2019.0144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The GDP-6-deoxy-α-d-manno-heptose is a key building block molecule in constructing lipopolysaccharide of Gram-negative bacteria. Therefore, blockage of the biosynthesis pathway of GDP-6-deoxy-α-d-manno-heptose is lethal or increases antibiotics susceptibility to pathogens. In this study, we assayed d-glycero-α-d-manno-heptose-1-phosphate guanylyltransferase (HddC) from Yersinia pseudotuberculosis (Yp) using an efficient assay method supplying its natural substrate. Using the method, 102 chemical compounds were tested to search inhibitory compounds and electrospray ionization mass spectrometry was used to detect the HddC from Y. pseudotuberculosis (YpHddC) reaction product, GDP-d-glycero-α-d-manno-heptose. Interestingly, one promising lead, ethyl 5-({[(5-benzyl-1, 3, 4-oxadiazol-2-yl) thio] acetyl} amino)-4-cyano-3-methyl-2-thiophenecarboxylate (Chembridge 7929959), was discovered. The inhibitory activity of the lead compound against YpHddC has been proven by blocking its nucleotidyltransferase activity transferring the GMP moiety to α-d-mannose-1-phosphate (αM1P). Chembridge 7929959 shows that the half maximal inhibitory concentration (IC50) is 0.222 μM indicating its affinity with αM1P.
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Affiliation(s)
- Suwon Kim
- Department of pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Seri Jo
- Department of pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Mi-Sun Kim
- Department of pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Dong Hae Shin
- Department of pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
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Jang B, Yun JH, Choi S, Park J, Shin DH, Lee ST, Lee W, Oh ES. Tyrosine 51 residue of the syndecan-2 extracellular domain is involved in the interaction with and activation of pro-matrix metalloproteinase-7. Sci Rep 2019; 9:10625. [PMID: 31337828 PMCID: PMC6650482 DOI: 10.1038/s41598-019-47140-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 07/11/2019] [Indexed: 01/16/2023] Open
Abstract
Although syndecan-2 is known to interact with the matrix metalloproteinase-7 (MMP-7), the details of their interaction were unknown. Our experiments with a series of syndecan-2 extracellular domain deletion mutants show that the interaction is mediated through an interaction of the extracellular domain of syndecan-2 (residues 41 to 60) with the α2 helix-loop-α3 helix in the pro-domain of MMP-7. NMR and molecular docking model show that Glu7 of the α1 helix, Glu32 of the α2 helix, and Gly48 and Ser52 of the α2 helix-loop-α3 helix of the MMP-7 pro-domain form the syndecan-2-binding pocket, which is occupied by the side chain of tyrosine residue 51 (Tyr51) of syndecan-2. Consistent with this notion, the expression of a syndecan-2 mutant in which Tyr51 was changed to Ala diminished the interaction between the syndecan-2 extracellular domain and the pro-domain of MMP-7. Furthermore, HT-29 colon adenocarcinoma cells expressing the interaction-defective mutant exhibited reductions in the cell-surface localization of MMP-7, the processing of pro-MMP-7 into active MMP-7, the MMP-7-mediated extracellular domain shedding of both syndecan-2 and E-cadherin, and syndecan-2-mediated anchorage-independent growth. Collectively, these data strongly suggest that Tyr51 of the syndecan-2 extracellular domain mediates its interaction with and activating processing of pro-MMP-7 and regulates MMP-7-dependent syndecan-2 functions.
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Affiliation(s)
- Bohee Jang
- From the Department of Life Sciences, the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Ji-Hye Yun
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 120-749, Republic of Korea
| | - Sojoong Choi
- From the Department of Life Sciences, the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Jimin Park
- College of Pharmacy, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Ewha Womans University, Seoul, 120-750, Republic of Korea
| | - Seung-Taek Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 120-749, Republic of Korea
| | - Weontae Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 120-749, Republic of Korea.
| | - Eok-Soo Oh
- From the Department of Life Sciences, the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 120-750, Republic of Korea.
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20
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Lee JJ, Kim HS, Lee JS, Park J, Shin SC, Song S, Lee E, Choi JE, Suh JW, Lee H, Kim EE, Seo EK, Shin DH, Lee HY, Lee HY, Lee KJ. Small molecule activator of Nm23/NDPK as an inhibitor of metastasis. Sci Rep 2018; 8:10909. [PMID: 30026594 PMCID: PMC6053448 DOI: 10.1038/s41598-018-29101-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 02/01/2018] [Accepted: 06/27/2018] [Indexed: 12/02/2022] Open
Abstract
Nm23-H1/NDPK-A is a tumor metastasis suppressor having NDP kinase (NDPK) activity. Nm23-H1 is positively associated with prolonged disease-free survival and good prognosis of cancer patients. Approaches to increasing the cellular levels of Nm23-H1 therefore have significance in the therapy of metastatic cancers. We found a small molecule, (±)-trans-3-(3,4-dimethoxyphenyl)-4-[(E)-3,4-dimethoxystyryl]cyclohex-1-ene, that activates Nm23, hereafter called NMac1. NMac1 directly binds to Nm23-H1 and increases its NDPK activity. Employing various NMac1 derivatives and hydrogen/deuterium mass spectrometry (HDX-MS), we identified the pharmacophore and mode of action of NMac1. We found that NMac1 binds to the C-terminal of Nm23-H1 and induces the NDPK activation through its allosteric conformational changes. NMac1-treated MDA-MB-231 breast cancer cells showed dramatic changes in morphology and actin-cytoskeletal organization following inhibition of Rac1 activation. NMac1 also suppressed invasion and migration in vitro, and metastasis in vivo, in a breast cancer mouse model. NMac1 as an activator of NDPK has potential as an anti-metastatic agent.
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Affiliation(s)
- Jae-Jin Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Hwang Suk Kim
- Department of Chemistry, Korea Advanced Institute of Science & Technology, Daejeon, 34141, Korea
| | - Ji-Sun Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea
| | - Jimin Park
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Sang Chul Shin
- Biomedical Research Institute, Korea Institute of Science & Technology, Seoul, 02792, Korea
| | - Soonwha Song
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Eunsun Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Jung-Eun Choi
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Ji-Wan Suh
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Hongsoo Lee
- Department of Chemistry, Korea Advanced Institute of Science & Technology, Daejeon, 34141, Korea
| | - Eunice EunKyeong Kim
- Biomedical Research Institute, Korea Institute of Science & Technology, Seoul, 02792, Korea
| | - Eun Kyoung Seo
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Dong Hae Shin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea
| | - Ho-Young Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Korea
| | - Hee-Yoon Lee
- Department of Chemistry, Korea Advanced Institute of Science & Technology, Daejeon, 34141, Korea.
| | - Kong-Joo Lee
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul, 03760, Korea.
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Kim HS, Yeo HJ, Shin DH, Cho WH, Kim D. Isolated Acute Appendicitis Caused by Aspergillus in a Patient Who Underwent Lung Transplantation: A Case Report. Transplant Proc 2018; 50:1199-1201. [PMID: 29655492 DOI: 10.1016/j.transproceed.2018.01.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/21/2017] [Accepted: 01/22/2018] [Indexed: 12/19/2022]
Abstract
Invasive aspergillosis is an important cause of morbidity and mortality in patients who have undergone lung transplantation. Aspergillus infections usually involve the respiratory tract, with vascular invasion and subsequent dissemination. However, acute appendicitis associated with localized aspergillosis is rare, especially among patients who have undergone prophylaxis with voriconazole. We present a case of primary Aspergillus appendicitis diagnosed by histologic examination in a patient who underwent lung transplantation. A 51-year-old woman with dermatomyositis underwent lung transplantation for acute interstitial pneumonitis. According to our institution's protocol, the patient was treated with immunosuppressive therapy and prophylaxis with voriconazole, ganciclovir, and trimethoprim sulfamethoxazole during the post-transplantation period. Twenty-eight days after transplantation, the patient developed mild abdominal pain and paralytic ileus. There was no apparent infection sign. Abdominal computerized tomography indicated a wall defect of the appendix with multifocal fluid collection, mesenteric leave thickening, and pneumoperitoneum. These findings were consistent with perforated appendicitis, and the patient underwent an appendectomy. The histopathology examination of the resected appendix showed inflammation and abscess. Periodic acid-Schiff-positive and Grocott-Gomori methenamine silver-positive fungal hyphae with acute-angle branching were observed, demonstrating muscular invasion. A galactomannan antigen test obtained on the same day had negative results. The trough level of voriconazole was well maintained and was subsequently adjusted through monitoring of circulating drug concentration. Simultaneously, other potential sites of disseminated Aspergillus were considered and examined, but no other site of systemic Aspergillus infection was detected. Voriconazole treatment was maintained for 3 months, and no aspergillosis relapse or other invasive fungal infections were observed.
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Affiliation(s)
- H S Kim
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - H J Yeo
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.
| | - D H Shin
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Department of Pathology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - W H Cho
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - D Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea; Department of Thoracic and Cardiovascular Surgery, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
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Yhi JY, Park DW, Min JH, Park YK, Kim SH, Kim TH, Sohn JW, Yoon HJ, Shin DH, Moon JY. Measurement of levels of fractional exhaled nitric oxide in patients with pulmonary tuberculosis. Int J Tuberc Lung Dis 2018; 20:1174-80. [PMID: 27510242 DOI: 10.5588/ijtld.15.1019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING The role of fractional exhaled nitric oxide (FeNO) in the diagnosis and treatment of pulmonary tuberculosis (PTB) is uncertain. OBJECTIVE To examine the value of FeNO as a biomarker for PTB. DESIGN Baseline FeNO levels were compared in 69 PTB patients and 118 healthy controls. The correlation between baseline FeNO levels and clinical variables of tuberculosis were studied. FeNO levels were checked twice in the PTB group, at diagnosis and after 2 months of anti-tuberculosis medication, and factors affecting changes in FeNO levels after treatment were analysed. RESULTS FeNO levels were not significantly different in the PTB group and controls (mean ± standard deviation 27.7 ± 17.6 parts per billion [ppb] vs. 27.0 ± 10.8 ppb, P = 0.531). In a multivariate regression analysis, no variable was shown to affect FeNO levels at diagnosis. FeNO levels did not significantly change after 2 months of treatment (26.8 ± 18.3 ppb vs. 24.0 ± 10.7 ppb, P = 0.257). Only PTB with a high FeNO level (>25 ppb) was related to a decline in FeNO levels after 2 months of treatment. CONCLUSION FeNO levels do not appear to be affected in PTB patients.
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Affiliation(s)
- J Y Yhi
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D W Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-H Min
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Y K Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - T-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J W Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D H Shin
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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Park J, Kim H, Kim S, Lee D, Kim MS, Shin DH. Cover Image, Volume 86, Issue 1. Proteins 2018. [DOI: 10.1002/prot.25434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jimin Park
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Hyojin Kim
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Suwon Kim
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Daeun Lee
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
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Hong DY, Park SO, Lee KR, Baek KJ, Moon HW, Han SB, Shin DH. Bacterial Contamination of Computer and Hand Hygiene Compliance in the Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The aim of this study was to determine the degree and nature of bacterial contamination of computer equipment in three Korean emergency departments (ED). Methods Hand hygiene practices of ED doctors and nurses were observed before contact with computer equipment. Microbiological swab samples were obtained from 112 multiple-user computer keyboards and electronic mice in the ED of three teaching hospitals. Isolated organisms were identified by a clinical microbiologist using Gram stain, colony morphology, and susceptibility test. Results Of the 112 samples, 103 (92.0%) showed growth of organisms on culture. Thirty-eight (33.9%) pieces of computer equipment yielded multiple bacterial species. Coagulase-negative Staphylococcus was the most common microorganism isolated (85.7%). Methicillin-resistant Staphylococcus aureus was obtained from two keyboards in two hospitals (1.8%). Hand hygiene compliance was observed on 29.9% occasions. Hand hygiene compliance after patient contact (38.0%) was higher than after other environmental contact (20.7%). Conclusions Multiple user computer equipment in the ED may serve as reservoirs for nosocomial infection. Hand hygiene should be performed before and after using all ED equipment, including computer equipment.
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Affiliation(s)
| | | | | | | | - HW Moon
- Konkuk University Medical Center, Department of Laboratory Medicine, Konkuk University School of Medicine, 120-1 Neugdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea, 143-729; Moon Hee Won, MD
| | - SB Han
- Inha University Hospital, Department of Emergency Medicine, 7-206 Sinheung-dong 3-ga, Jung-gu, Incheon, Republic of Korea, 400-711
| | - DH Shin
- Kangbuk Samsung Hospital, Department of Emergency Medicine, Sungkyunkwan University School of Medicine, 108-1 Pyeong-dong, Jongno-gu, Seoul, Republic of Korea, 110-746
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Hong DY, Park SO, Lee KR, Baek KJ, Moon HW, Han SB, Shin DH. Bacterial Contamination of Computer and Hand Hygiene Compliance in the Emergency Department. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791302000610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction The aim of this study was to determine the degree and nature of bacterial contamination of computer equipment in three Korean emergency departments (ED). Methods Hand hygiene practices of ED doctors and nurses were observed before contact with computer equipment. Microbiological swab samples were obtained from 112 multiple-user computer keyboards and electronic mice in the ED of three teaching hospitals. Isolated organisms were identified by a clinical microbiologist using Gram stain, colony morphology, and susceptibility test. Results Of the 112 samples, 103 (92.0%) showed growth of organisms on culture. Thirty-eight (33.9%) pieces of computer equipment yielded multiple bacterial species. Coagulase-negative Staphylococcus was the most common microorganism isolated (85.7%). Methicillin-resistant Staphylococcus aureus was obtained from two keyboards in two hospitals (1.8%). Hand hygiene compliance was observed on 29.9% occasions. Hand hygiene compliance after patient contact (38.0%) was higher than after other environmental contact (20.7%). Conclusions Multiple user computer equipment in the ED may serve as reservoirs for nosocomial infection. Hand hygiene should be performed before and after using all ED equipment, including computer equipment. (Hong Kong j.emerg.med. 2012;19:387-393)
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Affiliation(s)
| | | | | | | | - HW Moon
- Konkuk University Medical Center, Department of Laboratory Medicine, Konkuk University School of Medicine, 120-1 Neugdong-ro, Hwayang-dong, Gwangjin-gu, Seoul, Republic of Korea, 143-729
| | - SB Han
- Inha University Hospital, Department of Emergency Medicine, 7-206 Sinheung-dong 3-ga, Jung-gu, Incheon, Republic of Korea, 400-711
| | - DH Shin
- Kangbuk Samsung Hospital, Department of Emergency Medicine, Sungkyunkwan University School of Medicine, 108-1 Pyeong-dong, Jongno-gu, Seoul, Republic of Korea, 110-746
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Oh JM, Woo HW, Kim MK, Lee YH, Shin DH, Shin MH, Choi BY. Dietary total, animal, vegetable calcium and type 2 diabetes incidence among Korean adults: The Korean Multi-Rural Communities Cohort (MRCohort). Nutr Metab Cardiovasc Dis 2017; 27:1152-1164. [PMID: 29167059 DOI: 10.1016/j.numecd.2017.10.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/26/2017] [Accepted: 10/05/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Although a possible mechanism for developing type 2 diabetes in relation to calcium intake has been suggested, there is currently little epidemiological evidence on the association between dietary calcium and type 2 diabetes (T2D). This study aimed to evaluate the prospective association between dietary calcium and T2D incidence among adults 40 years of age or over, from the Multi-rural Communities Cohort (MRCohort), South Korea. METHODS AND RESULTS In total, 8313 participants (3033 men and 5280 women) who did not have diabetes at baseline were recruited between 2005 and 2013. The incidence rate ratio (IRR) was estimated using a modified Poisson regression model with a robust error estimator. During follow-up (31,570 person-years), 322 T2D cases were newly diagnosed. Dietary calcium (total and vegetable calcium) were inversely associated with the risk of T2D incidence among women (IRR = 0.61, 95% CI = 0.43-0.86, P for trend = 0.007 in third tertile of baseline total calcium intake comparing to the first tertile; IRR = 0.57, 95% CI = 0.39-0.84, P for trend = 0.006 for baseline vegetable calcium intake), not for men. The tendency of those inverse associations remained in both the normal fasting blood glucose group and the impaired fasting blood glucose group and were independent of obesity, smoking, and magnesium intake. CONCLUSIONS Total and vegetable calcium may be inversely associated with T2D incidence among women, regardless of impaired fasting blood glucose group or normal group. The associations may be potentially dose-responsive. Moderate dietary calcium may be related to lower risk of T2D incidence comparing to low intake group among women.
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Affiliation(s)
- J M Oh
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
| | - H W Woo
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
| | - M K Kim
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea.
| | - Y-H Lee
- Department of Preventive Medicine, Institute of Wonkwang Medical Science, Wonkwang University College of Medicine, Iksan, South Korea
| | - D H Shin
- Department of Occupational and Environmental Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - M-H Shin
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea
| | - B Y Choi
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea; Institute for Health and Society, Hanyang University, Seoul, South Korea
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Shin DH, Kim EY. Regarding "Perfusion MR Imaging Using a 3D Pulsed Continuous Arterial Spin-Labeling Method for Acute Cerebral Infarction Classified as Branch Atheromatous Disease Involving the Lenticulostriate Artery Territory". AJNR Am J Neuroradiol 2017; 38:E103. [PMID: 28818823 DOI: 10.3174/ajnr.a5356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - E Y Kim
- Department of Radiology Gachon University Gil Medical Center Incheon, South Korea
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Park J, Kim MS, Joo K, Lee J, Shin DH. An artificially constructed dimer through deformation of a short zinc-binding loop. Biochim Biophys Acta Proteins Proteom 2017; 1866:205-213. [PMID: 29122686 DOI: 10.1016/j.bbapap.2017.11.002] [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] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 10/24/2017] [Accepted: 11/01/2017] [Indexed: 10/18/2022]
Abstract
We have analyzed the crystal structure of the dimeric form of d-glycero-d-manno-heptose-1,7-bisphosphate phosphatase from Burkholderia thailandensis (BtGmhB), catalyzing the removal of the phosphate at the 7 position of d-glycero-d-manno-heptose-1,7-bisphosphate. The crystal structure of BtGmhB revealed a dimeric form caused by a disruption of a short zinc-binding loop. The dimeric BtGmhB structure was induced by triggering the loss of Zn2+via the protonation of cysteine residues at pH 4.8 of the crystallization condition. Similarly, the addition of EDTA also causes the dimerization of BtGmhB. It appears there are two dimeric forms in solution with and without the disulfide bridge mediated by Cys95. The disulfide-free dimer produced by the loss of Zn2+ in the short zinc-binding loop is further converted to a stable disulfide-bonded dimer in vitro. Though the two dimeric forms are reversible, both of them are inactive due to a deformation of the active site. Single and triple mutant experiments confirmed the presence of two dimeric forms in vitro. Phosphatase assay results showed that only a zinc-bound monomeric form contains catalytic activity in contrast to the inactive zinc-free dimeric forms. The monomer-to-dimer transition caused by the loss of Zn2+ observed in this study is an example of reversal phenomenon caused by artificial proteins containing protein engineered zinc-finger motifs where the monomer-to-dimer transitions occurred in the presence of Zn2+. Therefore, this unusual dimerization process may be applicable to designing proteins possessing a short zinc-binding loop with a novel regulatory role.
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Affiliation(s)
- Jimin Park
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul 03760, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul 03760, Republic of Korea
| | - Keehyoung Joo
- Center for in silico Protein Science, School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-722, Republic of Korea
| | - Jooyoung Lee
- Center for in silico Protein Science, School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-722, Republic of Korea.
| | - Dong Hae Shin
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul 03760, Republic of Korea.
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Park J, Kim H, Kim S, Lee D, Kim MS, Shin DH. Crystal structure of D-glycero-Β-D-manno-heptose-1-phosphate adenylyltransferase fromBurkholderia pseudomallei. Proteins 2017; 86:124-131. [DOI: 10.1002/prot.25398] [Citation(s) in RCA: 5] [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] [Received: 08/07/2017] [Revised: 10/02/2017] [Accepted: 10/04/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Jimin Park
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Hyojin Kim
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Suwon Kim
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Daeun Lee
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy; Ewha W. University; Seoul Republic of Korea
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Kim JS, Park J, Kim MS, Ha JY, Jang YW, Shin DH, Son JH. The Tnfaip8-PE complex is a novel upstream effector in the anti-autophagic action of insulin. Sci Rep 2017; 7:6248. [PMID: 28740220 PMCID: PMC5524748 DOI: 10.1038/s41598-017-06576-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 06/15/2017] [Indexed: 12/11/2022] Open
Abstract
Defective hepatic autophagy is observed in obesity and diabetes, whereas autophagy is inhibited by insulin in hepatocytes. Insulin-induced anti-autophagy is mediated by non-canonical Gαi3 signaling via an unknown mechanism. Previously, we identified the anti-autophagic activity of Tnfaip8 via activation of mammalian target of rapamycin (mTOR) in the nervous system. Here, we demonstrate that insulin temporally induces Tnfaip8, which mediates the anti-autophagic action of insulin through formation of a novel ternary complex including Tnfaip8, phosphatidylethanolamine (PE) and Gαi3. Specifically, an X-ray crystallographic study of Tnfaip8 from Mus musculus (mTnfaip8) at 2.03 Å together with LC-MS analyses reveals PE in the hydrophobic cavity. However, an mTnfaip8 mutant lacking PE does not interact with Gαi3, indicating that the PE component is critical for the anti-autophagic action of mTnfaip8 via interaction with Gαi3. Therefore, the mTnfaip8-PE complex may act as an essential upstream effector via ternary complex formation most likely with active Gαi3 during insulin-induced anti-autophagy.
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Affiliation(s)
- Ji-Soo Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Jimin Park
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Ji-Young Ha
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Ye-Won Jang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea.
| | - Jin H Son
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha W. University, Seoul, 03760, Republic of Korea.
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Shin DH, Kim YS, Yoo DS, Kim MJ, Oh CS, Hong JH, Lee E, Chai JY, Seo M. A Case of Ectopic Paragonimiasis in a 17th Century Korean Mummy. J Parasitol 2017; 103:399-403. [PMID: 28395568 DOI: 10.1645/16-63] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Archaeoparasitological studies on fossilized feces obtained from Joseon Dynasty (1392-1910 CE) mummies have provided invaluable data on the patterns of parasitic infection in pre-modern Korean societies. In our recent radiological investigation of a 17th century Joseon mummy discovered in Cheongdo (South Korea), we located a liver mass just below the diaphragm. Anatomical dissection confirmed the presence of a mass of unknown etiology. A subsequent parasitological examination of a sample of the mass revealed a large number of ancient Paragonimus sp. eggs, making the current report the first archaeoparasitological case of liver abscess caused by ectopic paragonimiasis.
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Affiliation(s)
- D H Shin
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - Y-S Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - D S Yoo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M J Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - C S Oh
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J H Hong
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - E Lee
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J Y Chai
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M Seo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
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Park DW, Kim SH, Moon JY, Song JS, Choi J, Kwak HJ, Jeong MG, Ro YS, Kim TH, Sohn JW, Shin DH, Park SS, Yoon HJ. The effect of low-volatile organic compounds, water-based paint on aggravation of allergic disease in schoolchildren. Indoor Air 2017; 27:320-328. [PMID: 27007057 DOI: 10.1111/ina.12301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 07/10/2015] [Accepted: 03/19/2016] [Indexed: 06/05/2023]
Abstract
Whether indoor painting aggravates preexisting allergic diseases remains unclear. We aimed to evaluate the impact of new classroom painting on aggravation of asthma, allergic rhinitis (AR), and atopic dermatitis (AD) in children. Studied school was previously painted with conventional water-based paint 20 years ago and had natural ventilation system. We identified a total of 172 children aged 10-12 years with allergic diseases in 17 classrooms, which were allocated to newly painted rooms with low-volatile organic compounds (VOC), water-based paint, or existing rooms. After painting, there was no intervention or internal airflow to influence indoor air environment in both classrooms. We prospectively assessed the symptom severity and serious events of allergic diseases between both classrooms at baseline and after one and eight weeks after painting. At one and eight weeks, there were no significant changes in the Childhood Asthma Control Test scores, the fractional nitric oxide levels, lung function in asthmatic children in either classroom. There were also no significant changes in the severity score of AR or AD, or serious events in all allergic diseases. These findings suggest classroom painting with this new paint at the levels encountered in this study might not be a major aggravating factor for school-aged children with allergic diseases.
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Affiliation(s)
- D W Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J S Song
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J Choi
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Kwak
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - M G Jeong
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea
| | - Y S Ro
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea
| | - T H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J W Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D H Shin
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S S Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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Park J, Kim H, Kim S, Lee D, Shin DH. Expression and crystallographic studies of D-glycero-β-D-manno-heptose-1-phosphate adenylyltransferase from Burkholderia pseudomallei. Acta Crystallogr F Struct Biol Commun 2017; 73:90-94. [PMID: 28177319 DOI: 10.1107/s2053230x16020537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 12/27/2016] [Indexed: 11/10/2022]
Abstract
The Gram-negative bacterium Burkholderia pseudomallei is the causative agent of melioidosis. D-glycero-β-D-manno-Heptose-1-phosphate adenylyltransferase (HldC) is the fourth enzyme of the ADP-L-glycero-β-D-manno-heptose biosynthesis pathway, which produces an essential carbohydrate comprising the inner core of lipopolysaccharide. Therefore, HldC is a potential target of antibiotics against melioidosis. In this study, HldC from B. pseudomallei has been cloned, expressed, purified and crystallized. Synchrotron X-ray data from a selenomethionine-substituted HldC crystal were also collected to 2.8 Å resolution. The crystal belonged to the primitive triclinic space group P1, with unit-cell parameters a = 74.0, b = 74.0, c = 74.9 Å, α = 108.4, β = 108.4, γ = 108.0°. Eight protomers are present in the unit cell and three out of five selenomethionines were found in each protomer using the PHENIX software suite. A full structural determination is in progress to elucidate the structure-function relationship of the protein.
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Affiliation(s)
- Jimin Park
- College of Pharmacy, Ewha W. University, 52 Ewhayeodae-gil, Seoul 03760, Republic of Korea
| | - Hyojin Kim
- College of Pharmacy, Ewha W. University, 52 Ewhayeodae-gil, Seoul 03760, Republic of Korea
| | - Suwon Kim
- College of Pharmacy, Ewha W. University, 52 Ewhayeodae-gil, Seoul 03760, Republic of Korea
| | - Daeun Lee
- College of Pharmacy, Ewha W. University, 52 Ewhayeodae-gil, Seoul 03760, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Ewha W. University, 52 Ewhayeodae-gil, Seoul 03760, Republic of Korea
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Park J, Kim MS, Joo K, Jhon GJ, Berry EA, Lee J, Shin DH. Crystal Structure of Hypothetical Fructose-Specific EIIB from Escherichia coli. Mol Cells 2016; 39:495-500. [PMID: 27215198 PMCID: PMC4916401 DOI: 10.14348/molcells.2016.0055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/21/2016] [Accepted: 04/27/2016] [Indexed: 11/27/2022] Open
Abstract
We have solved the crystal structure of a predicted fructose-specific enzyme IIB(fruc) from Escherichia coli (EcEIIB(fruc)) involved in the phosphoenolpyruvate-carbohydrate phosphotransferase system transferring carbohydrates across the cytoplasmic membrane. EcEIIB(fruc) belongs to a sequence family with more than 5,000 sequence homologues with 25-99% amino-acid sequence identity. It reveals a conventional Rossmann-like α-β-α sandwich fold with a unique β-sheet topology. Its C-terminus is longer than its closest relatives and forms an additional β-strand whereas the shorter C-terminus is random coil in the relatives. Interestingly, its core structure is similar to that of enzyme IIB(cellobiose) from E. coli (EcIIB(cel)) transferring a phosphate moiety. In the active site of the closest EcEIIB(fruc) homologues, a unique motif CXXGXAHT comprising a P-loop like architecture including a histidine residue is found. The conserved cysteine on this loop may be deprotonated to act as a nucleophile similar to that of EcIIB(cel). The conserved histidine residue is presumed to bind the negatively charged phosphate. Therefore, we propose that the catalytic mechanism of EcEIIB(fruc) is similar to that of EcIIB(cel) transferring phosphoryl moiety to a specific carbohydrate.
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Affiliation(s)
- Jimin Park
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha Womans University, Seoul 03760,
Korea
| | - Mi-Sun Kim
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha Womans University, Seoul 03760,
Korea
| | - Keehyung Joo
- Center for insilico Protein Science and School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455,
Korea
| | - Gil-Ja Jhon
- Department of Chemistry and Nano Science, Global Top5 Research Program, Ewha Womans University, Seoul 03760,
Korea
| | - Edward A. Berry
- Department of Biochemistry and Molecular Biology, State University of New York Upstate Medical University, Syracuse, New York,
USA
| | - Jooyoung Lee
- Center for insilico Protein Science and School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455,
Korea
| | - Dong Hae Shin
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Global Top5 Research Program, Ewha Womans University, Seoul 03760,
Korea
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Abstract
In this study, the hypocholesterolaemic effect of amaranth grain, oil and squalene are examined. In experiment 1, rats are given a semi-purified diet containing 1% (w/w) cholesterol for four weeks and either amaranth grain (AG; 300 g/kg) or amaranth oil (AO; 90 g/kg) substituted in experimental groups. Both AG and AO lowered serum and hepatic cholesterol and triglyceride levels. Faecal excretion of cholesterol and bile acid in the AO group increased, while AG affected only bile acid excretion. In experiment 2, rats were fed the cholesterol diet for four weeks and injected (i.p.) with saline (control), amaranth squalene (AS) or shark liver squalene (SS, 200 mg/kg) for seven days. The hypolipidaemic effects of AS were evident in both serum and liver. In addition, AS markedly increased faecal excretions of cholesterol and bile acid, and slightly inhibited 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity. In contrast, none of these effects were observed in the SS group. This preliminary study suggests that the cholesterol-lowering effect of AS may be mediated by increased faecal elimination of steroids through interference with cholesterol absorption, and that different sources of squalene (plant versus animal) may affect cholesterol metabolism differently.
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Affiliation(s)
- D H Shin
- Graduate School of Biotechnology, Korea University, Seoul 136-701, Korea
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Kim JH, Cho CH, Shin DH, Hong YC, Shin YW. Abatement of fluorinated compounds using a 2.45GHz microwave plasma torch with a reverse vortex plasma reactor. J Hazard Mater 2015; 294:41-46. [PMID: 25841085 DOI: 10.1016/j.jhazmat.2015.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 11/19/2014] [Revised: 03/06/2015] [Accepted: 03/07/2015] [Indexed: 06/04/2023]
Abstract
Abatement of fluorinated compounds (FCs) used in semiconductor and display industries has received an attention due to the increasingly stricter regulation on their emission. We have developed a 2.45GHz microwave plasma torch with reverse vortex reactor (RVR). In order to design a reverse vortex plasma reactor, we calculated a volume fraction and temperature distribution of discharge gas and waste gas in RVR by ANSYS CFX of computational fluid dynamics (CFD) simulation code. Abatement experiments have been performed with respect to SF6, NF3 by varying plasma power and N2 flow rates, and FCs concentration. Detailed experiments were conducted on the abatement of NF3 and SF6 in terms of destruction and removal efficiency (DRE) using Fourier transform infrared (FTIR). The DRE of 99.9% for NF3 was achieved without an additive gas at the N2 flow rate of 150 liter per minute (L/min) by applying a microwave power of 6kW with RVR. Also, a DRE of SF6 was 99.99% at the N2 flow rate of 60 L/min using an applied microwave power of 6kW. The performance of reverse vortex reactor increased about 43% of NF3 and 29% of SF6 abatements results definition by decomposition energy per liter more than conventional vortex reactor.
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Affiliation(s)
- J H Kim
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea
| | - C H Cho
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea
| | - D H Shin
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea
| | - Y C Hong
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea.
| | - Y W Shin
- Plasma Technology Research Center, National Fusion Research Institute, 814-2 Oxikdo-dong, Gunsan-city, Jeollabuk-do, South Korea; School of Advanced Green Energy and Environments, Handong Global University, Heunghae-eup, Buk-gu, Pohang-city, Gyeongbuk, South Korea
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Park J, Lee D, Kim MS, Kim DY, Shin DH. A preliminary X-ray study of 3-deoxy-D-manno-oct-2-ulosonic acid 8-phosphate phosphatase (YrbI) from Burkholderia pseudomallei. Acta Crystallogr F Struct Biol Commun 2015; 71:790-3. [PMID: 26057814 PMCID: PMC4461349 DOI: 10.1107/s2053230x15006135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/25/2015] [Indexed: 11/10/2022] Open
Abstract
3-Deoxy-D-manno-oct-2-ulosonic acid 8-phosphate phosphatase (YrbI), the third enzyme in the pathway for the biosynthesis of 3-deoxy-D-manno-oct-2-ulosonic acid (KDO), hydrolyzes KDO 8-phosphate to KDO and inorganic phosphate. YrbI belongs to the haloacid dehalogenase (HAD) superfamily, which is a large family of magnesium-dependent phosphatase/phosphotransferase enzymes. In this study, YrbI from Burkholderia pseudomallei, the causative agent of melioidosis, has been cloned, expressed, purified and crystallized. Synchrotron X-ray data were also collected to 2.25 Å resolution. The crystal belonged to the primitive orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 63.7, b = 97.5, c = 98.0 Å. A full structural determination is in progress to elucidate the structure-function relationship of this protein.
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Affiliation(s)
- Jimin Park
- Global Top 5 Research Program, College of Pharmacy, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Daeun Lee
- Global Top 5 Research Program, College of Pharmacy, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Mi-Sun Kim
- Global Top 5 Research Program, College of Pharmacy, Ewha Womans University, Seoul 120-750, Republic of Korea
| | - Dae Yong Kim
- 402-803 Technopark, 65 Pyeongchon-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do 420-734, Republic of Korea
| | - Dong Hae Shin
- Global Top 5 Research Program, College of Pharmacy, Ewha Womans University, Seoul 120-750, Republic of Korea
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Yu GI, Jun SE, Cho HC, Park KO, Chung JH, Shin DH, Chung IS. Association of interleukin-10 promoter region polymorphisms with risk factors of Atherosclerosis. Int J Immunogenet 2014; 42:31-7. [PMID: 25421362 DOI: 10.1111/iji.12156] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/24/2014] [Accepted: 10/06/2014] [Indexed: 11/27/2022]
Abstract
Atherosclerosis is considered as an inflammatory disease, and carotid artery intima-media thickness (IMT) and carotid plaque are generally used as intermediated phenotype of atherosclerosis. The aim of this study was to investigate whether carotid IMT and plaque are associated with promoter region polymorphisms of interleukin 10 (IL-10) gene. We recruited 135 subjects from a rural area of south-eastern part of South Korea. Three polymorphisms in the promoter region of IL-10 (-1082 A/G, -819 T/C and -592 A/C) were genotyped by pyrosequencing. Carotid IMT was measured at common carotid arteries, and carotid bulbs and cardiovascular risk factors such as cholesterol, blood pressure, uric acid and homocysteine were measured using blood samples. Subjects with the minor allele (C) of -819 T/C or the minor allele (C) of -592 A/C showed lower values in carotid IMT than those with major allele homozygote of each polymorphism (P = 0.018 and P = 0.031, respectively). Subjects with carotid plaque were significantly older and showed higher values in carotid IMT, uric acid and homocysteine than those without plaque (P < 0.01, respectively). In conclusion, the promoter region polymorphisms of IL-10 gene associate with carotid IMT and plaque. Further studies with larger samples are needed to provide stronger evidence to justify anti-atheromatous properties of IL-10.
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Affiliation(s)
- G I Yu
- Department of Preventive Medicine, School of Medicine, Keimyung University, Daegu, Korea
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39
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Kwon TR, Yoo KH, Oh CT, Shin DH, Choi EJ, Jung SJ, Hong H, Choi YS, Kim BJ. Improved methods for selective cryolipolysis results in subcutaneous fat layer reduction in a porcine model. Skin Res Technol 2014; 21:192-200. [PMID: 25220194 DOI: 10.1111/srt.12176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND/AIMS Cryolipolysis is a noninvasive method for the selective reduction of localized fat tissues. It has demonstrated efficacy in both clinical and preclinical trials; however, despite its popularity, its mechanisms of action and evaluation methods are not yet fully defined. The purpose of this study was to improved methods for cryolipolysis using a porcine model. METHODS The abdomens of female PWG micro-pigs were treated with a cooling device (CRYOLIPO II(™)), and we examined the treatment effects using photography, three-dimensional photography, ultrasound, gross, and microscopic pathology, and serum lipid level analyses in order to determine the mechanism of action, efficacy, and safety of CRYOLIPO II(™). RESULTS CRYOLIPO II(™) successfully reduced abdominal fat in our porcine model. Gross and microscopic histological results confirmed the noninvasive cold-induced selective subcutaneous fat destruction, and showed increases in pre-adipocyte differentiation and in the activation of lipid catabolism. In particular, we found that CRYOLIPO II(™) may increase PPARδ (delta) levels in adipose tissue at 30-60 days post-treatment. CONCLUSION Fat reduction by cryolipolysis was successfully achieved in our porcine model. Thus, our findings indicate that CRYOLIPO II(™) may be a promising fat reduction device for body contouring and fat reduction in humans, and that cryolipolysis exerts its effects, at least partly, by targeting the PPARδ signaling pathway. These results show that both investigative and diagnostic potentials capacity.
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Affiliation(s)
- T-R Kwon
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea; Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Kim MK, Shin J, Kweon SS, Shin DH, Lee YH, Chun BY, Choi BY. Harmful and beneficial relationships between alcohol consumption and subclinical atherosclerosis. Nutr Metab Cardiovasc Dis 2014; 24:767-776. [PMID: 24694837 DOI: 10.1016/j.numecd.2014.02.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 01/20/2014] [Accepted: 02/03/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIMS Arterial stiffness and increased intima-media wall thickness are two of the main predictors of cardiovascular disease (CVD). We evaluated whether brachial-ankle pulse wave velocity (baPWV) and common carotid artery intima-media wall thickness (CCA-IMT) are correlated with alcohol consumption in a cross-sectional study among Korean men and women aged 40 years and over. METHODS AND RESULTS All 5539 subjects (2121 men and 3418 women) were participants in the Multi-Rural Communities cohort (MRcohort) study, a part of the Korean Genome Epidemiology Study (KoGES). The baPWV was positively correlated with alcohol consumption in men (p for trend <0.0001). Age (middle-aged versus elderly) modified the effect of alcohol consumption on PWV. On the other hand CCA-IMT decreased with alcohol consumption in men. There was no favorable zone of alcohol consumption in terms of baPWV and CCA-IMT. Adjustment for lipid profiles substantially attenuated the relationship between alcohol consumption and CCA-IMT. There was no clear relation between alcohol consumption and baPWV/CCA-IMT in women. CONCLUSIONS Along with a linear harmful relationship between alcohol consumption and arterial stiffness in men there may also be a beneficial relationship between alcohol consumption and carotid intima-wall thickness. The effect of alcohol on arterial stiffness may be slightly stronger in elderly men, and the effect of alcohol on CCA-IMT may be mediated by lipid factors.
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Affiliation(s)
- M K Kim
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea.
| | - J Shin
- Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, South Korea
| | - S-S Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, South Korea; Jeonnam Regional Cancer Center, Chonnam National University Hwasun Hospital, Hwasun, South Korea
| | - D H Shin
- Department of Occupational and Environmental Medicine, Keimyung University Dongsan Medical Center, Daegu, South Korea
| | - Y-H Lee
- Department of Preventive Medicine & Institute of Wonkwang Medical Science, Wonkwang University College of Medicine, Iksan, South Korea
| | - B-Y Chun
- Department of Preventive Medicine, School of Medicine, and Health Promotion Research Center, Kyungpook National University, Daegu, South Korea
| | - B Y Choi
- Department of Preventive Medicine, College of Medicine, Hanyang University, Seoul, South Korea
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Choi MH, Hong JM, Lee JS, Shin DH, Choi HA, Lee K. Preferential location for arterial dissection presenting as golf-related stroke. AJNR Am J Neuroradiol 2013; 35:323-6. [PMID: 24184518 DOI: 10.3174/ajnr.a3768] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
SUMMARY Golf-related stroke has not been systematically reviewed. The purpose of our study was to describe in detail this particular stroke syndrome. Seven patients were analyzed at a university hospital and 7 patients were reviewed from MEDLINE literature. General demographics, symptom onset, neurologic signs, radiologic findings, and outcome were investigated. A total of 14 patients including 7 patients from the MEDLINE search were analyzed; all were men, with a mean age of 46.9 ± 12.8 years. Symptom onset was classified as during the golf swing (n = 9), unknown (n = 3), and after playing golf (n = 2). Most patients (n = 12) showed involvement of the vertebral artery and 2 patients showed involvement of the internal carotid artery (P = .008). Nine dissections were found on the right side, 3 on the left side, and 2 were bilateral (P = .046). Twelve patients had extracranial involvement and 2 patients had intracranial involvement (P = .008). Seven patients returned to normal, 5 returned to independence, 1 had unknown status, and 1 died. The anatomic preference of golf-related craniocervical arterial dissection is associated with the extracranial and vertebrobasilar system with a right-sided tendency as the result of stereotypical rotational movement during a golf swing.
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Affiliation(s)
- M H Choi
- From the Department of Neurology, Ajou University School of Medicine, Suwon, South Korea (M.H.C., J.M.H., J.S.L.)
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Kim MS, Lee H, Heo L, Lim A, Seok C, Shin DH. New molecular interaction of IIANtr
and HPr from Burkholderia pseudomallei
identified by X-ray crystallography and docking studies. Proteins 2013; 81:1499-508. [DOI: 10.1002/prot.24275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 01/24/2013] [Accepted: 02/18/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Mi-Sun Kim
- Division of Life & Pharmaceutical Sciences; The Center for Cell Signaling & Drug Discovery Research; College of Pharmacy, Ewha Womans University; Seoul 120-750 Republic of Korea
| | - Hasup Lee
- Department of Chemistry; College of Natural Sciences; Seoul National University; Seoul 151-747 Republic of Korea
| | - Lim Heo
- Department of Chemistry; College of Natural Sciences; Seoul National University; Seoul 151-747 Republic of Korea
| | - Areum Lim
- Division of Life & Pharmaceutical Sciences; The Center for Cell Signaling & Drug Discovery Research; College of Pharmacy, Ewha Womans University; Seoul 120-750 Republic of Korea
| | - Chaok Seok
- Department of Chemistry; College of Natural Sciences; Seoul National University; Seoul 151-747 Republic of Korea
| | - Dong Hae Shin
- Division of Life & Pharmaceutical Sciences; The Center for Cell Signaling & Drug Discovery Research; College of Pharmacy, Ewha Womans University; Seoul 120-750 Republic of Korea
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Kim MS, Lim A, Yang SW, Park J, Lee D, Shin DH. Structure andin silicosubstrate-binding mode of ADP-L-glycero-D-manno-heptose 6-epimerase fromBurkholderia thailandensis. Acta Crystallogr D Biol Crystallogr 2013; 69:658-68. [DOI: 10.1107/s0907444913001030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 01/11/2013] [Indexed: 11/11/2022]
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44
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Maeng J, Kim HY, Shin DH, Lee K. Transduction of translationally controlled tumor protein employing TCTP-derived protein transduction domain. Anal Biochem 2012; 435:47-53. [PMID: 23256924 DOI: 10.1016/j.ab.2012.11.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 11/26/2012] [Accepted: 11/26/2012] [Indexed: 11/26/2022]
Abstract
Protein transduction domains (PTDs), which are cell-penetrating peptides, have been employed for delivery of various cargos. We previously showed that the N-terminal fragment of translationally controlled tumor protein functions as a PTD (TCTP-PTD) by as yet poorly understood mechanisms. In this study, we generated several green fluorescent protein (GFP)-tagged TCTP fusion proteins by conjugating a single PTD or tandem PTDs at the N-terminus, the C-terminus, and both termini and compared their transduction efficiencies in human lung adenocarcinoma A549 cells to determine whether the protein transducing function of TCTP depends on the location or the number of PTD moieties in the TCTP molecule. Fluorimetric analysis and Western blotting assays revealed that TCTP-GFP fusion protein containing one or two TCTP-PTDs at its N-terminus showed more efficient cellular entry than either the C-terminal TCTP-PTD or TCTP-PTD with PTDs located at both the N- and C-terminals. This study demonstrates the feasibility of transduction of TCTP target cells employing its TCTP-PTD by simple co-incubation with purified proteins.
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Affiliation(s)
- Jeehye Maeng
- College of Pharmacy, Center for Cell Signaling and Drug Discovery Research, Ewha Womans University, Seoul 120-750, Republic of Korea
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Kim MS, Lim A, Yang SW, Lee D, Park J, Shin DH. A preliminary X-ray study of transketolase from Burkholderia pseudomallei. Acta Crystallogr Sect F Struct Biol Cryst Commun 2012. [PMID: 23192046 DOI: 10.1107/s1744309112044375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
TktA is the most critical enzyme in the nonoxidative pentose phosphate pathway. It catalyzes the conversion of xylulose 5-phosphate and ribose 5-phosphate into sedoheptulose 7-phosphate and glyceraldehyde 3-phosphate, and its products are used in the biosynthesis of acetyl-CoA, aromatic amino acids, nucleic acids and ADP-L-glycero-β-D-manno-heptose. TktA also has an unexpected role in chromosome structure that is independent of its metabolic responsibilities. Therefore, it is a new potent antibiotic target. In this study, TktA from Burkholderia pseudomallei has been cloned, expressed, purified and crystallized. Synchrotron X-ray data were also collected to 2.0 Å resolution. The crystal belonged to the monoclinic space group C2, with unit-cell parameters a=146.2, b=74.6, c=61.6 Å, β=113.0°. A full structural determination is under way in order to provide insight into the structure-function relationship of this protein.
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Affiliation(s)
- Mi Sun Kim
- The Center for Cell Signaling and Drug Discovery Research, College of Pharmacy, Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Republic of Korea
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Sheverdin V, Bae SY, Shin DH, Lee K. Expression and localization of translationally controlled tumor protein in rat urinary organs. Microsc Res Tech 2012; 75:1576-81. [PMID: 22807173 DOI: 10.1002/jemt.22103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 06/24/2012] [Indexed: 11/07/2022]
Abstract
This study describes the very first assessment of the expression and localization of translationally controlled tumor protein (TCTP) in adult rat urinary organs. TCTP expression levels in kidneys, urinary bladder, and urethra were evaluated by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and Western blotting, and its cellular localization was examined immunohistochemically in paraffin sections of various urinary organs. TCTP was found in all urinary organs. Its expression was high in the urethra and low in the bladder. TCTP was localized in glomerular podocytes, epithelium of proximal and distal renal tubules, in the loop of Henle, and in the transitional epithelium of the bladder and urethra, mostly in basal cell layers). The subcellular localization of TCTP in these urinary organs was cytoplasmic. These findings suggest that TCTP may be involved in urine formation and excretion.
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Affiliation(s)
- Vadim Sheverdin
- College of Pharmacy, Center for Cell Signaling and Drug Discovery Research, Ewha Womans University, Seoul, Korea
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Choi JH, Park JG, Jeon HJ, Kim MS, Lee MR, Lee MN, Sonn S, Kim JH, Lee MH, Choi MS, Park YB, Kwon OS, Jeong TS, Lee WS, Shim HB, Shin DH, Oh GT. 5-(4-Hydroxy-2,3,5-trimethylbenzylidene) thiazolidine-2,4-dione attenuates atherosclerosis possibly by reducing monocyte recruitment to the lesion. Exp Mol Med 2012; 43:471-8. [PMID: 21691142 DOI: 10.3858/emm.2011.43.8.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A variety of benzylidenethiazole analogs have been demonstrated to inhibit 5-lipoxygenase (5-LOX). Here we report the anti-atherogenic potential of 5-(4-hydroxy- 2,3,5-trimethylbenzylidene) thiazolidin-2,4-dione (HMB-TZD), a benzylidenethiazole analog, and its potential mechanism of action in LDL receptor-deficient (Ldlr-/-) mice. HMB-TZD Treatment reduced leukotriene B4 (LTB4) production significantly in RAW264.7 macrophages and SVEC4-10 endothelial cells. Macrophages or endothelial cells pre-incubated with HMB-TZD for 2 h and then stimulated with lipopolysaccharide or tumor necrosis factor-alpha (TNF-α) displayed reduced cytokine production. Also, HMB-TZD reduced cell migration and adhesion in accordance with decreased proinflammatory molecule production in vitro and ex vivo. HMB-TZD treatment of 8-week-old male Ldlr-/- mice resulted in significantly reduced atherosclerotic lesions without a change to plasma lipid profiles. Moreover, aortic expression of pro-atherogenic molecules involved in the recruitment of monocytes to the aortic wall, including TNF-α , MCP-1, and VCAM-1, was downregulated. HMB-TZD also reduced macrophage infiltration into atherosclerotic lesions. In conclusion, HMB-TZD ameliorates atherosclerotic lesion formation possibly by reducing the expression of proinflammatory molecules and monocyte/macrophage recruitment to the lesion. These results suggest that HMB-TZD, and benzylidenethiazole analogs in general, may have therapeutic potential as treatments for atherosclerosis.
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Affiliation(s)
- Jae-Hoon Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 133-791, Korea
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Lee JS, Hong JM, Kim EJ, Shin DH, Joo IS, Lim YC, Suh SH, Kim SY. Comparison of the Incidence of parenchymal hematoma and poor outcome in patients with carotid terminus occlusion treated with intra-arterial urokinase alone or with combined IV rtPA and intra-arterial urokinase. AJNR Am J Neuroradiol 2011; 33:175-9. [PMID: 21998105 DOI: 10.3174/ajnr.a2722] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Patients with acute CTO generally have a poor prognosis, despite IV or IA thrombolytic treatment. The goal of this study was to analyze the results of patients with CTO who had IA urokinase treatment with or without initial IV rtPA based on a bridging protocol. MATERIALS AND METHODS Sixteen consecutive patients with acute ischemic stroke due to CTO who had combined IV and IA or a single IA thrombolytic treatment were enrolled. The baseline characteristics and prognosis were described. The patients who did and did not develop a PH shortly after treatment were compared. RESULTS The mean age was 66.4 years, and the median initial NIHSS score was 17. The median dose of IA urokinase was 320,000 U, and recanalization (TICI grade II-III) was achieved in 12 patients (75%). However, 5 patients died and 10 patients had poor prognosis with mRS 5-6 at discharge. Six patients (37.5%) with a PH had a higher NIHSS score 1 day after treatment (26.7 versus 13.6, P = .002), and they had more frequent mortality (66.7% versus 10.0%, P = .018) and worse prognosis (mRS 5-6; 100% versus 40%, P = .016) at discharge than patients without PH. CONCLUSIONS Patients with CTO who received IA urokinase treatment based on a bridging protocol had a poor prognosis. The development of PH might affect this outcome.
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Affiliation(s)
- J S Lee
- Departments of Radiology, Ajou University School of Medicine, Ajou University Hospital, Suwon, South Korea
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Lee J, Kim S, Shin DH, Kim HJ, Lee K. Neuroprotective effect of Cu,Zn-superoxide dismutase fused to a TCTP-derived protein transduction domain. Eur J Pharmacol 2011; 666:87-92. [DOI: 10.1016/j.ejphar.2011.05.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 05/16/2011] [Accepted: 05/22/2011] [Indexed: 11/24/2022]
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Kim HY, Kim S, Youn H, Chung JK, Shin DH, Lee K. The cell penetrating ability of the proapoptotic peptide, KLAKLAKKLAKLAK fused to the N-terminal protein transduction domain of translationally controlled tumor protein, MIIYRDLISH. Biomaterials 2011; 32:5262-8. [DOI: 10.1016/j.biomaterials.2011.03.074] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 03/29/2011] [Indexed: 10/18/2022]
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