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Gunasekaran P, Hwang YS, Lee GH, Park J, Kim JG, La YK, Park NY, Kothandaraman R, Yim MS, Choi J, Kim HN, Park IY, Lee SJ, Kim MH, Cha-Molstad H, Shin SY, Ryu EK, Bang JK. Degradation of Polo-like Kinase 1 by the Novel Poly-Arginine N-Degron Pathway PROTAC Regulates Tumor Growth in Nonsmall Cell Lung Cancer. J Med Chem 2024; 67:3307-3320. [PMID: 38105611 DOI: 10.1021/acs.jmedchem.3c01493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Polo-like kinase 1 (PLK1), which is crucial in cell cycle regulation, is considered a promising anticancer drug target. Herein, we present the N-degron pathway-based proteolysis targeting chimera (PROTAC) for PLK1 degradation, targeting the Polo-box domain (PBD). We identified DD-2 as the most potent PROTAC that selectively induces PLK1 degradation in cancer cells, including HeLa and nonsmall cell lung cancer (NSCLC), through the N-degron pathway. DD-2 exhibited significant in vitro anticancer effects, inducing G2/M arrest and apoptosis in HeLa and NSCLC cell lines. DD-2 showed significant tumor growth inhibition in a xenograft mouse model using HeLa and NSCLC cell lines, highlighting its potential in cancer treatment. Furthermore, the combination of DD-2 with tyrosine kinase inhibitor (TKI), osimertinib, effectively suppressed tumor growth in double-mutated H1975 cell lines, emphasizing DD-2's potential in combination cancer therapies. Collectively, this study demonstrates the potential of the N-degron pathway, especially using DD-2, for targeted cancer therapies.
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Affiliation(s)
- Pethaiah Gunasekaran
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
- Dandicure Inc, Ochang, Chungbuk 28119, Republic of Korea
| | - Yeon Sil Hwang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
- Dandicure Inc, Ochang, Chungbuk 28119, Republic of Korea
| | - Gong-Hyeon Lee
- Dandicure Inc, Ochang, Chungbuk 28119, Republic of Korea
| | - Jaehui Park
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Republic of Korea
| | - Jung Gi Kim
- Nucleic Acid Therapeutics Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Republic of Korea
| | - Yeo Kyung La
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
| | - Nam Yeong Park
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
| | | | - Min Su Yim
- Division of Vaccine Development Coordination, Center for Vaccine Research, National Institute of Infectious Diseases, National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju 28159, Republic of Korea
| | - Joonhyeok Choi
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
| | - Hak Nam Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
| | - Il Yeong Park
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Republic of Korea
| | - Soo Jae Lee
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Republic of Korea
| | - Mi-Hyun Kim
- Department of Internal Medicine, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Republic of Korea
| | - Hyunjoo Cha-Molstad
- Nucleic Acid Therapeutics Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Republic of Korea
| | - Song Yub Shin
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju 61452, Republic of Korea
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
- Department of Bio-Analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chungbuk 28119, Republic of Korea
- Dandicure Inc, Ochang, Chungbuk 28119, Republic of Korea
- Department of Bio-Analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
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Kim EY, Kumar SD, Bang JK, Ajish C, Yang S, Ganbaatar B, Kim J, Lee CW, Cho SJ, Shin SY. Evaluation of deoxythymidine-based cationic amphiphiles as antimicrobial, antibiofilm, and anti-inflammatory agents. Int J Antimicrob Agents 2023; 62:106909. [PMID: 37419291 DOI: 10.1016/j.ijantimicag.2023.106909] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 06/14/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023]
Abstract
OBJECTIVES We recently designed a series of cationic deoxythymidine-based amphiphiles that mimic the cationic amphipathic structure of antimicrobial peptides (AMPs). Among these amphiphiles, ADG-2e and ADL-3e displayed the highest selectivity against bacterial cells. In this study, ADG-2e and ADL-3e were evaluated for their potential as novel classes of antimicrobial, antibiofilm, and anti-inflammatory agents. METHODS Minimum inhibitory concentrations of ADG-2e and ADL-3e against bacteria were determined using the broth microdilution method. Proteolytic resistance against pepsin, trypsin, α-chymotrypsin, and proteinase K was determined by radial diffusion and HPLC analysis. Biofilm activity was investigated using the broth microdilution and confocal microscopy. The antimicrobial mechanism was investigated by membrane depolarization, cell membrane integrity analysis, scanning electron microscopy (SEM), genomic DNA influence and genomic DNA binding assay. Synergistic activity was evaluated using checkerboard method. Anti-inflammatory activity was investigated using ELISA and RT-PCR. RESULTS ADG-2e and ADL-3e showed good resistance to physiological salts and human serum, and a low incidence of drug resistance. Moreover, they exhibit proteolytic resistance against pepsin, trypsin, α-chymotrypsin, and proteinase K. ADG-2e and ADL-3e were found to kill bacteria by an intracellular target mechanism and bacterial cell membrane-disrupting mechanism, respectively. Furthermore, ADG-2e and ADL-3e showed effective synergistic effects when combined with several conventional antibiotics against methicillin-resistant Staphylococcus aureus (MRSA) and multidrug-resistant Pseudomonas aeruginosa (MDRPA). Importantly, ADG-2e and ADL-3e not only suppressed MDRPA biofilm formation but also effectively eradicated mature MDRPA biofilms. Furthermore, ADG-2e and ADL-3e drastically decreased tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) gene expression and protein secretion in lipopolysaccharide (LPS)-stimulated macrophages, implying potent anti-inflammatory activity in LPS-induced inflammation. CONCLUSION Our findings suggest that ADG-2e and ADL-3e could be further developed as novel antimicrobial, antibiofilm, and anti-inflammatory agents to combat bacterial infections.
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Affiliation(s)
- Eun Young Kim
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - S Dinesh Kumar
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, Republic of Korea
| | - Chelladurai Ajish
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Sungtae Yang
- Department of Microbiology, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | | | - Jeongeun Kim
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Chul Won Lee
- Department of Chemistry, Chonnam National University, Gwangju, Republic of Korea
| | - Sung-Jin Cho
- Department of Biological Sciences and Biotechnology, College of Natural Sciences, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.
| | - Song Yub Shin
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea.
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Murvai N, Lin Y, Molnár T, Kovács A, Micsonai A, Kyu Bang J, Lee YH, Kardos J. Inhibition studies on aggregation and cytotoxicity of Alzheimer's amyloid-β peptide. Biophys J 2023; 122:350a-351a. [PMID: 36783777 DOI: 10.1016/j.bpj.2022.11.1945] [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: 02/12/2023] Open
Affiliation(s)
- Nikoletta Murvai
- Department of Biochemistry, Eötvös Loránd University, Budapest, Hungary
| | - Yuxi Lin
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Republic of Korea
| | - Tamás Molnár
- Department of Biochemistry, Eötvös Loránd University, Budapest, Hungary
| | - Attila Kovács
- Department of Biochemistry, Eötvös Loránd University, Budapest, Hungary
| | - András Micsonai
- Department of Biochemistry, Eötvös Loránd University, Budapest, Hungary
| | - Jeong Kyu Bang
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Republic of Korea
| | - Young-Ho Lee
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Republic of Korea
| | - Jozsef Kardos
- Department of Biochemistry, Eötvös Loránd University, Budapest, Hungary
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Gunasekaran P, Lee GH, Hwang YS, Koo BC, Han EH, Bang G, La YK, Park S, Kim HN, Kim MH, Bang JK, Ryu EK. An investigation of Plk1 PBD inhibitor KBJK557 as a tumor growth suppressor in non-small cell lung cancer. J Anal Sci Technol 2022. [DOI: 10.1186/s40543-022-00345-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
AbstractLung cancer is the second most commonly reported type of cancer worldwide. Approximately 80–85% of lung cancer occurrences are accounted by non-small cell lung cancer (NSCLC). Polo-like kinase-1 (Plk1) plays multiple roles in cell cycle progression and its overexpression is observed in majority of malignancies, including NSCLC. A combination of frontline drugs and inhibitors targeting the Plk kinase domain (KD) has been used to overcome drug resistance in NSCLC. Plk1 KD inhibitors are highly prone to cross-reactivity with similar kinases, eventually leading to undesirable side effects. Moreover, there have been no reports of Plk1 PBD inhibitors showing antitumorigenic effects on NSCLC cells or animal models so far. To address this issue herein, for the first time, our recently reported Plk1 PBD inhibitor KBJK557 was evaluated for the anticancer potential against NSCLC cells. KBJK557 displayed notable cytotoxic effects in A549, PC9, and H1975 cells. Mechanistic investigations revealed that KBJK557-treated cells underwent G2/M cell cycle arrest, triggering subsequent apoptosis. In vivo antitumorigenic activity in xenograft mice model demonstrates that KBJK557-treated mice showed a considerable decrease in tumor size, proving the significances of Plk1 in lung cancer. Collectively, this study demonstrates that KBJK557 can serve as a promising drug candidate for treating the lung cancer through Plk1 PBD inhibition.
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Kim EY, Kumar SD, Ajish C, Lee CW, Shin S, Yang S, Bang JK, Shin SY. Synergistic antimicrobial activity of
TZP4
with conventional antibiotics against antibiotic‐resistant
Pseudomonas aeruginosa. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12517] [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: 01/10/2023]
Affiliation(s)
- Eun Young Kim
- Department of Cellular and Molecular Medicine, Graduate School of Biomedical Science, School of Medicine Chosun University Gwangju Republic of Korea
| | - S. Dinesh Kumar
- Department of Cellular and Molecular Medicine, Graduate School of Biomedical Science, School of Medicine Chosun University Gwangju Republic of Korea
| | - Chelladurai Ajish
- Department of Cellular and Molecular Medicine, Graduate School of Biomedical Science, School of Medicine Chosun University Gwangju Republic of Korea
| | - Chul Won Lee
- Department of Chemistry Chonnam National University Gwangju Republic of Korea
| | - Sung‐Heui Shin
- Department of Microbiology, School of Medicine Chosun University Gwangju Republic of Korea
| | - Sungtae Yang
- Department of Microbiology, School of Medicine Chosun University Gwangju Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance Korea Basic Science Institute (KBSI) Ochang Republic of Korea
| | - Song Yub Shin
- Department of Cellular and Molecular Medicine, Graduate School of Biomedical Science, School of Medicine Chosun University Gwangju Republic of Korea
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Cho CH, Son SY, Bang JK, Jeon YH, Park JP. Biophysical and electrochemical approaches for studying molecular recognition of IL-33 binding peptides identified via phage display. Anal Chim Acta 2022; 1197:339522. [DOI: 10.1016/j.aca.2022.339522] [Citation(s) in RCA: 1] [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: 09/15/2021] [Revised: 01/13/2022] [Accepted: 01/17/2022] [Indexed: 01/18/2023]
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Gunasekaran P, Han HJ, Choi JH, Ryu EK, Park NY, Bang G, La YK, Park S, Hwang K, Kim HN, Kim MH, Jeon YH, Soung NK, Bang JK. Amphipathic Small Molecule AZT Compound Displays Potent Inhibitory Effects in Cancer Cell Proliferation. Pharmaceutics 2021; 13:pharmaceutics13122071. [PMID: 34959352 PMCID: PMC8704889 DOI: 10.3390/pharmaceutics13122071] [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] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 12/01/2021] [Indexed: 11/24/2022] Open
Abstract
Cancer has been identified as a leading cause of death worldwide, and the increasing number of cancer cases threatens to shorten the average life expectancy of people. Recently, we reported a 3-azido-3-deoxythymidine (AZT)-based amphipathic small molecule, ADG-2e that revealed a notable potency against tumor metastasis. To evaluate the anticancer potential of ADG-2e, we assessed its anticancer potency in vitro and in vivo. Anticancer screening of ADG-2e against cervical cancer cells, HeLa CCL2, and BT549 mammary gland ductal carcinoma showed significant inhibition of cancer cell proliferation. Furthermore, mechanistic investigations revealed that cancer cell death presumably proceeded through an oncosis mechanistic pathway because ADG-2e treated cells showed severe damage on the plasma membrane, a loss of membrane integrity, and leakage of α-tubulin and β-actin. Finally, evaluation of the antitumorigenic potential of ADG-2e in mouse xenograft models revealed that this compound potentially inhibits cancer cell proliferation. Collectively, these findings suggest that ADG-2e can evolve as an anticancer agent, which may represent a model for nucleoside-based small molecule anticancer drug discovery.
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Affiliation(s)
- Pethaiah Gunasekaran
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
- Dandicure Inc., Ochang, Cheongju 28119, Korea
| | - Ho Jin Han
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju 28116, Korea;
| | - Jung hoon Choi
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea; (J.h.C.); (G.B.)
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
- Department of Bio-Analytical Science, University of Science & Technology, Daejeon 34113, Korea
| | - Nam Yeong Park
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
- Department of Bio-Analytical Science, University of Science & Technology, Daejeon 34113, Korea
| | - Geul Bang
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea; (J.h.C.); (G.B.)
| | - Yeo Kyung La
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
| | - Sunghyun Park
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
| | - Kyubin Hwang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
| | - Hak Nam Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
| | - Mi-Hyun Kim
- Department of Internal Medicine, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan 49241, Korea;
| | - Young Ho Jeon
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong 30019, Korea
- Correspondence: (Y.H.J.); (N.-K.S.); (J.K.B.)
| | - Nak-Kyun Soung
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongju 28116, Korea;
- Correspondence: (Y.H.J.); (N.-K.S.); (J.K.B.)
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Cheongju 28119, Korea; (P.G.); (E.K.R.); (N.Y.P.); (Y.K.L.); (S.P.); (K.H.); (H.N.K.)
- Dandicure Inc., Ochang, Cheongju 28119, Korea
- Department of Bio-Analytical Science, University of Science & Technology, Daejeon 34113, Korea
- Correspondence: (Y.H.J.); (N.-K.S.); (J.K.B.)
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Seo T, Kim J, Shin HC, Kim JG, Ju S, Nawale L, Han G, Lee HS, Bang G, Kim JY, Bang JK, Lee KH, Soung NK, Hwang J, Lee C, Kim SJ, Kim BY, Cha-Molstad H. Correction to: R-catcher, a potent molecular tool to unveil the arginylome. Cell Mol Life Sci 2021; 78:7085-7086. [PMID: 34570245 DOI: 10.1007/s00018-021-03915-6] [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] [Accepted: 08/05/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Taewook Seo
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Jihyo Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Ho-Chul Shin
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Jung Gi Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Shinyeong Ju
- Center for Theragnosis, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Laxman Nawale
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Goeun Han
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Hye Seon Lee
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Geul Bang
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28116, Republic of Korea
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28116, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, 28116, Republic of Korea
| | - Kyung Ho Lee
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Nak-Kyun Soung
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Joonsung Hwang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Cheolju Lee
- Center for Theragnosis, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Seung Jun Kim
- Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea. .,Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.
| | - Bo Yeon Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea. .,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea.
| | - Hyunjoo Cha-Molstad
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea. .,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea.
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Hong TI, Hwang KS, Choi TI, Kleinau G, Scheerer P, Bang JK, Jung SH, Kim CH. Zebrafish Bioassay for Screening Therapeutic Candidates Based on Melanotrophic Activity. Int J Mol Sci 2021; 22:9313. [PMID: 34502223 PMCID: PMC8431389 DOI: 10.3390/ijms22179313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 11/29/2022] Open
Abstract
In this study, we used the zebrafish animal model to establish a bioassay by which physiological efficacy differential of alpha-melanocyte-stimulating hormone (α-MSH) analogues could be measured by melanosome dispersion in zebrafish larvae. Brain-skin connection research has purported the interconnectedness between the nervous system and skin physiology. Accordingly, the neuropeptide α-MSH is a key regulator in several physiological processes, such as skin pigmentation in fish. In mammals, α-MSH has been found to regulate motivated behavior, appetite, and emotion, including stimulation of satiety and anxiety. Several clinical and animal model studies of autism spectrum disorder (ASD) have already demonstrated the effectiveness of α-MSH in restoring the social deficits of autism. Therefore, we sought to analyze the effect of synthetic and naturally-occurring α-MSH variants amongst different species. Our results showed that unique α-MSH derivatives from several fish species produced differential effects on the degree of melanophore dispersion. Using α-MSH human form as a standard, we could identify derivatives that induced greater physiological effects; particularly, the synthetic analogue melanotan-II (MT-II) exhibited a higher capacity for melanophore dispersion than human α-MSH. This was consistent with previous findings in an ASD mouse model demonstrating the effectiveness of MT-II in improving ASD behavioral symptoms. Thus, the melanophore assay may serve as a useful screening tool for therapeutic candidates for novel drug discovery.
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Affiliation(s)
- Ted I. Hong
- Department of Biology, Chungnam National University, Daejeon 34134, Korea; (T.I.H.); (T.-I.C.)
| | - Kyu-Seok Hwang
- Drug Discovery Platform Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea;
| | - Tae-Ik Choi
- Department of Biology, Chungnam National University, Daejeon 34134, Korea; (T.I.H.); (T.-I.C.)
| | - Gunnar Kleinau
- Group Protein X-ray Crystallography and Signal Transduction, Institute of Medical Physics and Biophysics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, D-10117 Berlin, Germany; (G.K.); (P.S.)
| | - Patrick Scheerer
- Group Protein X-ray Crystallography and Signal Transduction, Institute of Medical Physics and Biophysics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, D-10117 Berlin, Germany; (G.K.); (P.S.)
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea;
| | - Seung-Hyun Jung
- Department of Applied Marine Bioresource Science, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea
| | - Cheol-Hee Kim
- Department of Biology, Chungnam National University, Daejeon 34134, Korea; (T.I.H.); (T.-I.C.)
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Yim MS, Hwang YS, Bang JK, Jung DW, Kim JM, Yi GR, Lee G, Ryu EK. Morphologically homogeneous, pH-responsive gold nanoparticles for non-invasive imaging of HeLa cancer. Nanomedicine 2021; 34:102394. [PMID: 33857687 DOI: 10.1016/j.nano.2021.102394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/15/2021] [Accepted: 03/22/2021] [Indexed: 01/02/2023]
Abstract
Gold nanoparticles (AuNPs) have been widely used as nanocarriers in drug delivery to improve the efficiency of chemotherapy treatment and enhance early disease detection. The advantages of AuNPs include their excellent biocompatibility, easy modification and functionalization, facile synthesis, low toxicity, and controllable particle size. This study aimed to synthesize a conjugated citraconic anhydride link between morphologically homogeneous AuNPs and doxorubicin (DOX) (DOX-AuNP). The carrier was radiolabeled for tumor diagnosis using positron emission tomography (PET). The systemically designed DOX-AuNP was cleaved at the citraconic anhydride linker site under the mild acidic conditions of a cancer cell, thereby releasing DOX. Subsequently, the AuNPs aggregated via electrostatic attraction. HeLa cancer cells exhibited a high uptake of the radiolabeled DOX-AuNP. Moreover, PET tumor images were obtained using radiolabeled DOX-AuNP in cancer xenograft mouse models. Therefore, DOX-AuNP is expected to provide a valuable insight into the use of radioligands to detect tumors using PET.
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Affiliation(s)
- Min Su Yim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea
| | - Yeon Sil Hwang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea
| | - Jeong Kyu Bang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea; Bio-Analytical Science, University of Science and Technology, Daejeon, Republic of Korea
| | - Dae-Woong Jung
- Korea Basic Science Institute, Daejeon, Republic of Korea; Department of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jun Min Kim
- Korea Basic Science Institute, Daejeon, Republic of Korea; Department of Chemical Engineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Gi-Ra Yi
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Gaehang Lee
- Korea Basic Science Institute, Daejeon, Republic of Korea.
| | - Eun Kyoung Ryu
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea; Bio-Analytical Science, University of Science and Technology, Daejeon, Republic of Korea.
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11
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Seo T, Kim J, Shin HC, Kim JG, Ju S, Nawale L, Han G, Lee HS, Bang G, Kim JY, Bang JK, Lee KH, Soung NK, Hwang J, Lee C, Kim SJ, Kim BY, Cha-Molstad H. R-catcher, a potent molecular tool to unveil the arginylome. Cell Mol Life Sci 2021; 78:3725-3741. [PMID: 33687501 PMCID: PMC8038991 DOI: 10.1007/s00018-021-03805-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 02/18/2021] [Accepted: 02/27/2021] [Indexed: 11/27/2022]
Abstract
Protein arginylation is a critical regulator of a variety of biological processes. The ability to uncover the global arginylation pattern and its associated signaling pathways would enable us to identify novel disease targets. Here, we report the development of a tool able to capture the N-terminal arginylome. This tool, termed R-catcher, is based on the ZZ domain of p62, which was previously shown to bind N-terminally arginylated proteins. Mutating the ZZ domain enhanced its binding specificity and affinity for Nt-Arg. R-catcher pulldown coupled to LC-MS/MS led to the identification of 59 known and putative arginylated proteins. Among these were a subgroup of novel ATE1-dependent arginylated ER proteins that are linked to diverse biological pathways, including cellular senescence and vesicle-mediated transport as well as diseases, such as Amyotrophic Lateral Sclerosis and Alzheimer's disease. This study presents the first molecular tool that allows the unbiased identification of arginylated proteins, thereby unlocking the arginylome and provide a new path to disease biomarker discovery.
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Affiliation(s)
- Taewook Seo
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Jihyo Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Ho-Chul Shin
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Jung Gi Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Shinyeong Ju
- Center for Theragnosis, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Laxman Nawale
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Goeun Han
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea.,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Hye Seon Lee
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | - Geul Bang
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28116, Republic of Korea
| | - Jin Young Kim
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Ochang, 28116, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, 28116, Republic of Korea
| | - Kyung Ho Lee
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Nak-Kyun Soung
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Joonsung Hwang
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea
| | - Cheolju Lee
- Center for Theragnosis, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Seung Jun Kim
- Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea. .,Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea.
| | - Bo Yeon Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea. .,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea.
| | - Hyunjoo Cha-Molstad
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Cheongju-si, Chungcheongbuk-do, 28116, Republic of Korea. .,Department of Biomolecular Science, KRIBB School, University of Science and Technology, Daejeon, 34113, Republic of Korea.
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12
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Park JE, Meng L, Ryu EK, Nagashima K, Baxa U, Bang JK, Lee KS. Autophosphorylation-induced self-assembly and STIL-dependent reinforcement underlie Plk4's ring-to-dot localization conversion around a human centriole. Cell Cycle 2020; 19:3419-3436. [PMID: 33323015 DOI: 10.1080/15384101.2020.1843772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Polo-like kinase 4 (Plk4) is a key regulator of centriole biogenesis. Studies have shown that Plk4 undergoes dynamic relocalization from a ring-like pattern around a centriole to a dot-like morphology at the procentriole assembly site and this event is central for inducing centriole biogenesis. However, the detailed mechanisms underlying Plk4's capacity to drive its symmetry-breaking ring-to-dot relocalization remain largely unknown. Here, we showed that Plk4 self-initiates this process in an autophosphorylation-dependent manner and that STIL, its downstream target, is not required for this event. Time-dependent analyses with mEOS-fused photoconvertible Plk4 revealed that a portion of ring-state Plk4 acquires a capacity, presumably through autophosphorylation, to linger around a centriole, ultimately generating a dot-state morphology. Interestingly, Plk4 WT, but not its catalytically inactive mutant, showed the ability to form a nanoscale spherical assembly in the cytosol of human cells or heterologous E. coli, demonstrating its autophosphorylation-dependent self-organizing capacity. At the biochemical level, Plk4 - unlike its N-terminal βTrCP degron motif - robustly autophosphorylated the PC3 SSTT motif within its C-terminal cryptic polo-box, an event critical for inducing its physical clustering. Additional in vivo experiments showed that although STIL was not required for Plk4's initial ring-to-dot conversion, coexpressed STIL greatly enhanced Plk4's ability to generate a spherical condensate and recruit Sas6, a major component of the centriolar cartwheel structure. We propose that Plk4's autophosphorylation-induced clustering is sufficient to induce its ring-to-dot localization conversion and that subsequently recruited STIL potentiates this process to generate a procentriole assembly body critical for Plk4-dependent centriole biogenesis.
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Affiliation(s)
- Jung-Eun Park
- Laboratory of Metabolism, National Cancer Institute, National Institutes of Health , Bethesda, MD, USA
| | - Lingjun Meng
- Laboratory of Metabolism, National Cancer Institute, National Institutes of Health , Bethesda, MD, USA
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute , Cheongju, Republic of Korea
| | - Kunio Nagashima
- Electron Microscopy Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research , Frederick, MD, USA
| | - Ulrich Baxa
- Electron Microscopy Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research , Frederick, MD, USA
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute , Cheongju, Republic of Korea
| | - Kyung S Lee
- Laboratory of Metabolism, National Cancer Institute, National Institutes of Health , Bethesda, MD, USA
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13
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Gunasekaran P, Yim MS, Ahn M, Soung NK, Park JE, Kim J, Bang G, Shin SC, Choi J, Kim M, Kim HN, Lee YH, Chung YH, Lee K, EunKyeong Kim E, Jeon YH, Kim MJ, Lee KR, Kim BY, Lee KS, Ryu EK, Bang JK. Development of a Polo-like Kinase-1 Polo-Box Domain Inhibitor as a Tumor Growth Suppressor in Mice Models. J Med Chem 2020; 63:14905-14920. [PMID: 33142063 PMCID: PMC8919061 DOI: 10.1021/acs.jmedchem.0c01451] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Polo-like kinase-1 (Plk1) plays a key role in mitosis and has been identified as an attractive anticancer drug target. Plk1 consists of two drug-targeting sites, namely, N-terminal kinase domain (KD) and C-terminal polo-box domain (PBD). As KD-targeting inhibitors are associated with severe side effects, here we report on the pyrazole-based Plk1 PBD inhibitor, KBJK557, which showed a remarkable in vitro anticancer effect by inducing Plk1 delocalization, mitotic arrest, and apoptosis in HeLa cells. Further, in vivo optical imaging analysis and antitumorigenic activities in mouse xenograft models demonstrate that KBJK557 preferentially accumulates in cancer cells and selectively inhibits cancer cell proliferation. Pharmacokinetic profiles and partition coefficients suggest that KBJK557 was exposed in the blood and circulated through the organs with an intermediate level of clearance (t1/2, 7.73 h). The present investigation offers a strategy for specifically targeting cancer using a newly identified small-molecule inhibitor that targets the Plk1 PBD.
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Affiliation(s)
- Pethaiah Gunasekaran
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
| | - Min Su Yim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
| | - Nak-Kyun Soung
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Republic of Korea
| | - Jung-Eun Park
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Jaehi Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
| | - Geul Bang
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Republic of Korea
| | - Sang Chul Shin
- Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Joonhyeok Choi
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
| | - Minkyoung Kim
- College of Pharmacy, Dongguk University, 52 Dongguk-ro, Ilsandong-gu, Goyang 10320, Republic of Korea
| | - Hak Nam Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
| | - Young-Ho Lee
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Young-Ho Chung
- Drug & Disease Target Research Team, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
| | - Kyeong Lee
- College of Pharmacy, Dongguk University, 52 Dongguk-ro, Ilsandong-gu, Goyang 10320, Republic of Korea
| | - Eunice EunKyeong Kim
- Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Young-Ho Jeon
- Laboratory of Biochemistry and Structural Biology, College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Min Ju Kim
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Republic of Korea
| | - Kyeong-Ryoon Lee
- Laboratory Animal Resource Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Republic of Korea
| | - Bo-Yeon Kim
- Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Republic of Korea
| | - Kyung S Lee
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892, United States
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk 28119, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
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14
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Park O, Bang JK, Ryu K, Hwang E, Hong KS, Byun Y, Cheong C, Jeon YH. Structure of neuroendocrine regulatory peptide‐2 in membrane‐mimicking environments. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- One‐Sung Park
- College of Pharmacy Korea University Sejong Campus Sejong South Korea
- Division of Bioconvergence Analysis Korea Basic Science Institute Cheongju South Korea
| | - Jeong Kyu Bang
- Division of Bioconvergence Analysis Korea Basic Science Institute Cheongju South Korea
| | - Kyoung‐Seok Ryu
- Division of Bioconvergence Analysis Korea Basic Science Institute Cheongju South Korea
| | - Eunha Hwang
- Division of Bioconvergence Analysis Korea Basic Science Institute Cheongju South Korea
| | - Kwan Soo Hong
- Division of Bioconvergence Analysis Korea Basic Science Institute Cheongju South Korea
| | - Youngjoo Byun
- College of Pharmacy Korea University Sejong Campus Sejong South Korea
| | - Chaejoon Cheong
- Division of Bioconvergence Analysis Korea Basic Science Institute Cheongju South Korea
| | - Young Ho Jeon
- College of Pharmacy Korea University Sejong Campus Sejong South Korea
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15
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Kim EY, Kumar SD, Bang JK, Shin SY. Mechanisms of antimicrobial and antiendotoxin activities of a triazine‐based amphipathic polymer. Biotechnol Bioeng 2020; 117:3508-3521. [DOI: 10.1002/bit.27499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/09/2020] [Accepted: 07/11/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Eun Young Kim
- Department of Biomedical Science, Graduate School Chosun University Gwangju Republic of Korea
| | - S. Dinesh Kumar
- Department of Biomedical Science, Graduate School Chosun University Gwangju Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance Korea Basic Science Institute (KBSI) Ochang Republic of Korea
| | - Song Yub Shin
- Department of Biomedical Science, Graduate School Chosun University Gwangju Republic of Korea
- Department of Cellular & Molecular Medicine, School of Medicine Chosun University Gwangju Republic of Korea
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16
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Gunasekaran P, Kim EY, Lee J, Ryu EK, Shin SY, Bang JK. Synthesis of Fmoc-Triazine Amino Acids and Its Application in the Synthesis of Short Antibacterial Peptidomimetics. Int J Mol Sci 2020; 21:ijms21103602. [PMID: 32443730 PMCID: PMC7279249 DOI: 10.3390/ijms21103602] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022] Open
Abstract
To combat the escalating rise of antibacterial resistance, the development of antimicrobial peptides (AMPs) with a unique mode of action is considered an attractive strategy. However, proteolytic degradation of AMPs remains the greatest challenge in their transformation into therapeutics. Herein, we synthesized Fmoc-triazine amino acids that differ from each other by anchoring either cationic or hydrophobic residues. These unnatural amino acids were adopted for solid-phase peptide synthesis (SPPS) to synthesize a series of amphipathic antimicrobial peptidomimetics. From the antimicrobial screening, we found that the trimer, BJK-4 is the most potent short antimicrobial peptidomimetic without showing hemolytic activity and it displayed enhanced proteolytic stability. Moreover, the mechanism of action to kill bacteria was found to be an intracellular targeting.
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Affiliation(s)
- Pethaiah Gunasekaran
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; (P.G.); (J.L.); (E.K.R.)
| | - Eun Young Kim
- Department of Medical Science, Graduate School, Chosun University, Gwangju 61452, Korea; (E.Y.K.); (S.Y.S.)
| | - Jian Lee
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; (P.G.); (J.L.); (E.K.R.)
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; (P.G.); (J.L.); (E.K.R.)
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Korea
| | - Song Yub Shin
- Department of Medical Science, Graduate School, Chosun University, Gwangju 61452, Korea; (E.Y.K.); (S.Y.S.)
- Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju 61452, Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; (P.G.); (J.L.); (E.K.R.)
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Korea
- Correspondence: ; Tel.: +82-43-240-5023
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17
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Yim MS, Soung NK, Han EH, Min JY, Han H, Son EJ, Kim HN, Kim B, Bang JK, Ryu EK. Vitamin E-Conjugated Phosphopeptide Inhibitor of the Polo-Box Domain of Polo-Like Kinase 1. Mol Pharm 2019; 16:4867-4877. [PMID: 31663746 DOI: 10.1021/acs.molpharmaceut.9b00757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Polo-like kinase 1 (Plk1) regulates cell cycle and cell proliferation, and is currently considered a potential biomarker in clinical trials for many cancers. A characteristic feature of Plks is their C-terminal polo-box domain (PBD). Pro-Leu-His-Ser-pThr (PLHS[pT])-the phosphopeptide inhibitor of the PBD of Plk1-induces apoptosis in cancer cells. However, because of the low cell membrane-penetration ability of PLHS[pT], new approaches are required to overcome these drawbacks. We therefore developed a vitamin E (VE) conjugate that is biodegradable by intracellular redox enzymes as an anticancer drug-delivery system. To ensure high efficiency of membrane penetration, we synthesized VE-S-S-PLHS[pT]KY (1) by conjugating PLHS[pT] to VE via a disulfide bond. We found that 1 penetrated cancer cell membranes, blocked cancer cell proliferation, and induced apoptosis in cancer cells through cell cycle arrest in the G2/M phase. We synthesized a radiolabeled peptide (124I-1), and the radioligand was evaluated in in vivo tumor uptake using positron emission tomography. This study shows that combination conjugates are an excellent strategy for specifically targeting Plk PBD. These conjugates have a dual function, with possible uses in anticancer therapy and tumor diagnosis.
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Affiliation(s)
- Min Su Yim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Nak Kyun Soung
- Anticancer Agent Research Center, World Class Institute, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea
| | - Eun Hee Han
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Jin-Young Min
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - HoJin Han
- Anticancer Agent Research Center, World Class Institute, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea
| | - Eun-Ju Son
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Hak Nam Kim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - BoYeon Kim
- Anticancer Agent Research Center, World Class Institute, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju 28116, Korea
| | - Jeong Kyu Bang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
| | - Eun Kyoung Ryu
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Ochang, Cheongju 28119, Korea
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18
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Park JE, Zhang L, Bang JK, Andresson T, DiMaio F, Lee KS. Phase separation of Polo-like kinase 4 by autoactivation and clustering drives centriole biogenesis. Nat Commun 2019; 10:4959. [PMID: 31672968 PMCID: PMC6823436 DOI: 10.1038/s41467-019-12619-2] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [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: 06/11/2019] [Accepted: 09/05/2019] [Indexed: 11/09/2022] Open
Abstract
Tight control of centriole duplication is critical for normal chromosome segregation and the maintenance of genomic stability. Polo-like kinase 4 (Plk4) is a key regulator of centriole biogenesis. How Plk4 dynamically promotes its symmetry-breaking relocalization and achieves its procentriole-assembly state remains unknown. Here we show that Plk4 is a unique kinase that utilizes its autophosphorylated noncatalytic cryptic polo-box (CPB) to phase separate and generate a nanoscale spherical condensate. Analyses of the crystal structure of a phospho-mimicking, condensation-proficient CPB mutant reveal that a disordered loop at the CPB PB2-tip region is critically required for Plk4 to generate condensates and induce procentriole assembly. CPB phosphorylation also promotes Plk4's dissociation from the Cep152 tether while binding to downstream STIL, thus allowing Plk4 condensate to serve as an assembling body for centriole biogenesis. This study uncovers the mechanism underlying Plk4 activation and may offer strategies for anti-Plk4 intervention against genomic instability and cancer.
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Affiliation(s)
- Jung-Eun Park
- Laboratory of Metabolism, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Liang Zhang
- Laboratory of Metabolism, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, 162 Yeongudanji-ro, Ochang-eup, Cheongju, 28119, Republic of Korea
| | - Thorkell Andresson
- Protein Characterization Laboratory, Frederick National Laboratory for Cancer Research and Leidos Biomedical Research Inc., 8560 Progress Drive, Frederick, MD, 21702, USA
| | - Frank DiMaio
- Department of Biochemistry and Institute for Protein Design, University of Washington, 1705 NE Pacific Street, Seattle, WA, 98195, USA
| | - Kyung S Lee
- Laboratory of Metabolism, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA.
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19
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Gunasekaran P, Fan M, Kim EY, Shin JH, Lee JE, Son EJ, Kim J, Hwang E, Yim MS, Kim EH, Choi YJ, Lee YH, Chung YH, Kim HN, Ryu EK, Shin SY, Kim EK, Bang JK. Amphiphilic Triazine Polymer Derivatives as Antibacterial And Anti-atopic Agents in Mice Model. Sci Rep 2019; 9:15161. [PMID: 31641232 PMCID: PMC6805867 DOI: 10.1038/s41598-019-51561-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 07/03/2019] [Accepted: 10/01/2019] [Indexed: 01/06/2023] Open
Abstract
Considering the emergence of bacterial resistance and low proteolytic stability of antimicrobial peptides (AMPs), herein we developed a series of ultra-short triazine based amphipathic polymers (TZP) that are connected with ethylene diamine linkers instead of protease sensitive amide bond. The most potent oligomers, TZP3 and TZP5 not only displayed potent antibacterial action on various drug-resistant pathogens but also exhibited a strong synergic antibacterial activity in combination with chloramphenicol against multidrug-resistant Pseudomonas aeruginosa (MDRPA). Since most of atopic dermatitis (AD) infections are caused by bacterial colonization, we evaluated the potency of TZP3 and TZP5 on AD in vitro and in vivo. In vitro AD analysis of these two polymers showed significant inhibition against the release of β-hexosaminidase and tumor necrosis factor (TNF-α) from RBL-2H3 cells. In AD-like skin lesions in BALB/c mice model, these two polymers displayed significant potency in suppressing dermal and epidermal thickness, mast cell infiltration and pro-inflammatory cytokines expression. Moreover, these polymers exhibited remarkable efficacy over the allergies caused by the imbalance of Th1/Th2 by regulating total IgE and IgG2a. Finally, the impact of treatment effects of these polymers was examined through analyzing the weights and sizes of spleen and lymph node of AD-induced mice.
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Affiliation(s)
- Pethaiah Gunasekaran
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Meiqi Fan
- Division of Food Bioscience, Konkuk University, Chungju, 27478, Republic of Korea
| | - Eun Young Kim
- Department of Medical Science, Graduate School, and Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea
| | - Jun Ho Shin
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Ji Eun Lee
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea.,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Eun Ju Son
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Jaehi Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Eunha Hwang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Min Su Yim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea.,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Eun-Hee Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Young-Jin Choi
- Division of Food Bioscience, Konkuk University, Chungju, 27478, Republic of Korea
| | - Young-Ho Lee
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea.,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Young-Ho Chung
- Drug & Disease Target Research Team, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Hak Nam Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea.,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Song Yub Shin
- Department of Medical Science, Graduate School, and Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju, 61452, Republic of Korea.
| | - Eun-Kyung Kim
- Division of Food Bioscience, Konkuk University, Chungju, 27478, Republic of Korea.
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea. .,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea.
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20
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Lin Y, Sahoo BR, Ozawa D, Kinoshita M, Kang J, Lim MH, Okumura M, Huh YH, Moon E, Jang JH, Lee HJ, Ryu KY, Ham S, Won HS, Ryu KS, Sugiki T, Bang JK, Hoe HS, Fujiwara T, Ramamoorthy A, Lee YH. Diverse Structural Conversion and Aggregation Pathways of Alzheimer's Amyloid-β (1-40). ACS Nano 2019; 13:8766-8783. [PMID: 31310506 DOI: 10.1021/acsnano.9b01578] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Complex amyloid aggregation of amyloid-β (1-40) (Aβ1-40) in terms of monomer structures has not been fully understood. Herein, we report the microscopic mechanism and pathways of Aβ1-40 aggregation with macroscopic viewpoints through tuning its initial structure and solubility. Partial helical structures of Aβ1-40 induced by low solvent polarity accelerated cytotoxic Aβ1-40 amyloid fibrillation, while predominantly helical folds did not aggregate. Changes in the solvent polarity caused a rapid formation of β-structure-rich protofibrils or oligomers via aggregation-prone helical structures. Modulation of the pH and salt concentration transformed oligomers to protofibrils, which proceeded to amyloid formation. We reveal diverse molecular mechanisms underlying Aβ1-40 aggregation with conceptual energy diagrams and propose that aggregation-prone partial helical structures are key to inducing amyloidogenesis. We demonstrate that context-dependent protein aggregation is comprehensively understood using the macroscopic phase diagram, which provides general insights into differentiation of amyloid formation and phase separation from unfolded and folded structures.
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Affiliation(s)
- Yuxi Lin
- Department of Chemistry , Sookmyung Women's University , Cheongpa-ro 47-gil 100 , Yongsan-gu, Seoul 04310 , South Korea
| | - Bikash R Sahoo
- Biophysics Program and Department of Chemistry, Biomedical Engineering, and Macromolecular Science and Engineering , University of Michigan , Ann Arbor , Michigan 48109-1055 , United States
| | - Daisaku Ozawa
- Department of Neurotherapeutics , Osaka University Graduate School of Medicine , 2-2 Yamadaoka , Suita , Osaka 565-0871 , Japan
| | - Misaki Kinoshita
- Frontier Research Institute for Interdisciplinary Sciences , Tohoku University , 6-3 Aramaki-Aza-Aoba , Aoba-ku, Sendai 980-8578 , Japan
| | - Juhye Kang
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon 34141 , South Korea
- Department of Chemistry , Ulsan National Institute of Science and Technology , Ulsan 44919 , South Korea
| | - Mi Hee Lim
- Department of Chemistry , Korea Advanced Institute of Science and Technology , Daejeon 34141 , South Korea
| | - Masaki Okumura
- Frontier Research Institute for Interdisciplinary Sciences , Tohoku University , 6-3 Aramaki-Aza-Aoba , Aoba-ku, Sendai 980-8578 , Japan
| | | | | | | | - Hyun-Ju Lee
- Department of Neural Development and Disease , Korea Brain Research Institute , 61 Cheomdan-ro , Dong-gu, Daegu 41068 , South Korea
| | - Ka-Young Ryu
- Department of Neural Development and Disease , Korea Brain Research Institute , 61 Cheomdan-ro , Dong-gu, Daegu 41068 , South Korea
| | - Sihyun Ham
- Department of Chemistry , Sookmyung Women's University , Cheongpa-ro 47-gil 100 , Yongsan-gu, Seoul 04310 , South Korea
| | - Hyung-Sik Won
- Department of Biotechnology, Research Institute and College of Biomedical and Health Science , Konkuk University , Chungju , Chungbuk 27478 , South Korea
| | | | - Toshihiko Sugiki
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita , Osaka 565-0871 , Japan
| | | | - Hyang-Sook Hoe
- Department of Neural Development and Disease , Korea Brain Research Institute , 61 Cheomdan-ro , Dong-gu, Daegu 41068 , South Korea
| | - Toshimichi Fujiwara
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita , Osaka 565-0871 , Japan
| | - Ayyalusamy Ramamoorthy
- Biophysics Program and Department of Chemistry, Biomedical Engineering, and Macromolecular Science and Engineering , University of Michigan , Ann Arbor , Michigan 48109-1055 , United States
| | - Young-Ho Lee
- Institute for Protein Research , Osaka University , Yamadaoka 3-2 , Suita , Osaka 565-0871 , Japan
- Bio-Analytical Science , University of Science and Technology , Daejeon 34113 , South Korea
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21
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Gunasekaran P, Rajasekaran G, Han EH, Chung YH, Choi YJ, Yang YJ, Lee JE, Kim HN, Lee K, Kim JS, Lee HJ, Choi EJ, Kim EK, Shin SY, Bang JK. Cationic Amphipathic Triazines with Potent Anti-bacterial, Anti-inflammatory and Anti-atopic Dermatitis Properties. Sci Rep 2019; 9:1292. [PMID: 30718691 PMCID: PMC6361992 DOI: 10.1038/s41598-018-37785-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 07/19/2018] [Accepted: 12/12/2018] [Indexed: 12/26/2022] Open
Abstract
The emergence of multi-drug resistant bacteria forces the therapeutic world into a position, where the development of new and alternative kind of antibiotics is highly important. Herein, we report the development of triazine-based amphiphilic small molecular antibacterial agents as mimics of lysine- and arginine-based cationic peptide antibiotics (CPAs). These compounds were screened against a panel of both Gram-positive and Gram-negative bacterial strains. Further, anti-inflammatory evaluation of these compounds led to the identification of four efficient compounds, DG-5, DG-6, DL-5, and DL-6. These compounds displayed significant potency against drug-resistant bacteria, including methicillin-resistant S. aureus (MRSA), multidrug-resistant P. aeruginosa (MDRPA), and vancomycin-resistant E. faecium (VREF). Mechanistic studies, including cytoplasmic membrane depolarization, confocal imaging and flow cytometry suggest that DG-5, DG-6, and DL-5 kill bacteria by targeting bacterial membrane, while DL-6 follows intracellular targeting mechanism. We also demonstrate that these molecules have therapeutic potential by showing the efficiency of DG-5 in preventing the lung inflammation of lipopolysaccharide (LPS)-induced acute lung injury (ALI) mouse model. More interestingly, DL-6 exhibited impressive potency on atopic dermatitis (AD)-like skin lesions in BALB/c mice model by suppressing pro-inflammatory cytokines. Collectively, these results suggest that they can serve a new class of antimicrobial, anti-inflammatory and anti-atopic agents with promising therapeutic potential.
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Affiliation(s)
- Pethaiah Gunasekaran
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Ganesan Rajasekaran
- Department of Cellular and Molecular Medicine, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Eun Hee Han
- Drug & Disease Target Research Team, Korea Basic Science Institute (KBSI), Cheongju, 28119, Republic of Korea
| | - Young-Ho Chung
- Drug & Disease Target Research Team, Korea Basic Science Institute (KBSI), Cheongju, 28119, Republic of Korea
| | - Young-Jin Choi
- Division of Food Bioscience, Konkuk University, Chungju, 27478, Republic of Korea
| | - Yu Jin Yang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Ji Eun Lee
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea.,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Hak Nam Kim
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea
| | - Kiram Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Chungcheongbuk-do, 28116, Republic of Korea
| | - Jin-Seok Kim
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Chungcheongbuk-do, 28116, Republic of Korea
| | - Hyun-Jun Lee
- Natural Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang-eup, Chungcheongbuk-do, 28116, Republic of Korea
| | - Eun-Ju Choi
- Department of Physical Education, Daegu Catholic University, Gyeongsan, 38430, Republic of Korea
| | - Eun-Kyung Kim
- Division of Food Bioscience, Konkuk University, Chungju, 27478, Republic of Korea.
| | - Song Yub Shin
- Department of Cellular and Molecular Medicine, Chosun University, Gwangju, 501-759, Republic of Korea.
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang, Chung Buk, 28119, Republic of Korea. .,Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea.
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22
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Liang S, Yuan B, Jin YX, Zhang JB, Bang JK, Kim NH. Effects of antifreeze glycoprotein 8 (AFGP8) supplementation during vitrification on the in vitro developmental capacity of expanded bovine blastocysts. Reprod Fertil Dev 2018; 29:2140-2148. [PMID: 28241901 DOI: 10.1071/rd16426] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 01/19/2017] [Indexed: 11/23/2022] Open
Abstract
Cryopreservation is an effective method for the long-term storage of valuable germplasm in the field of reproductive research. The present study examined the developmental capacity of post-thaw bovine blastocysts during vitrification after supplementation with antifreeze glycoprotein 8 (AFGP8). Survival and re-expansion rates in culture during the 12h after thawing were significantly higher in the AFGP8-treated than untreated group. In addition, blastocysts from the AFGP8-treated group exhibited lower rates of apoptosis. Real-time reverse transcription-polymerase chain reaction analysis showed that the expression of the Bcl-2 gene, coding for an anti-apoptotic protein, was increased significantly, whereas the expression of the pro-apoptotic gene Bax was decreased significantly in the AFGP8-treated group. The cellular proliferation rate and mitochondrial membrane potential were significantly higher in post-thaw re-expanded blastocysts from the AFGP8-treated compared with untreated group. In addition, outgrowth potential in post-thaw blastocysts in re-expanded blastocysts after vitrification was significantly increased in the AFGP8-treated compared with untreated group. Together, these results are the first to demonstrate that the addition of AFGP8 during vitrification can help protect bovine blastocysts against chill-induced injury.
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Affiliation(s)
- Shuang Liang
- Department of Animal Science, Chungbuk National University, Naesudong-ro, Seowon-gu, Cheongju-si, Chungcheongbuk-do, 28864, Republic of Korea
| | - Bao Yuan
- Department of Animal Science, Chungbuk National University, Naesudong-ro, Seowon-gu, Cheongju-si, Chungcheongbuk-do, 28864, Republic of Korea
| | - Yong-Xun Jin
- Department of Laboratory Animal Center, College of Animal Sciences, Jilin University, Xi'an Road 5333, Changchun, Jilin, 130062, China
| | - Jia-Bao Zhang
- Department of Laboratory Animal Center, College of Animal Sciences, Jilin University, Xi'an Road 5333, Changchun, Jilin, 130062, China
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Nam-Hyung Kim
- Department of Animal Science, Chungbuk National University, Naesudong-ro, Seowon-gu, Cheongju-si, Chungcheongbuk-do, 28864, Republic of Korea
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23
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Kim MK, Kang HK, Ko SJ, Hong MJ, Bang JK, Seo CH, Park Y. Mechanisms driving the antibacterial and antibiofilm properties of Hp1404 and its analogue peptides against multidrug-resistant Pseudomonas aeruginosa. Sci Rep 2018; 8:1763. [PMID: 29379033 PMCID: PMC5789083 DOI: 10.1038/s41598-018-19434-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 12/28/2017] [Indexed: 01/06/2023] Open
Abstract
Hp1404, identified from the venom of the scorpion Heterometrus petersii, displays antimicrobial activity with cytotoxicity. Several synthetic peptides were designed based on the parent peptide Hp1404 to reduce cytotoxicity and improve activity (deletion of glycine and phenylalanine, substitution with leucine and lysine). The analogue peptides generated comprised 12 amino acids and displayed amphipathic α-helical structures, with higher hydrophobic moments and net positive charge than those of the Hp1404. The analogues showed less hemolytic and toxic effects toward mammalian cells than the Hp1404, especially Hp1404-T1e, which exhibited particularly potent antibacterial and antibiofilm activities against multidrug-resistant Pseudomonas aeruginosa (MRPA) strains. The analogue peptide Hp1404-T1e was more stable against salt and trypsin than the Hp1404. Hp1404's mechanism of action involves binding to lipopolysaccharide (LPS), thereby killing bacteria through membrane disruption. Hp1404-T1e kills bacteria more rapidly than Hp1404 and not only seems to bind more strongly to LPS but may also be able to enter bacterial cells and interact with their DNA. Additionally, Hp1404-T1e can effectively kill bacteria in vivo. The results of this study indicate that Hp1404-T1e not only displays antimicrobial activity, but is also functional in physiological conditions, confirming its potential use as an effective therapeutic agent against MRPA.
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Affiliation(s)
- Min Kyung Kim
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Hee Kyoung Kang
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Su Jin Ko
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Min Ji Hong
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University, Kongju, 314-701, South Korea
| | - Yoonkyung Park
- Research Center for proteineous Materials (RCPM), Chosun University, Kwangju, Republic of Korea.
- Department of Biotechnology and BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Kwangju, Republic of Korea.
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24
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Lee KH, Hwang JA, Kim SO, Kim JH, Shin SC, Kim EE, Lee KS, Rhee K, Jeon BH, Bang JK, Cha-Molstad H, Soung NK, Jang JH, Ko SK, Lee HG, Ahn JS, Kwon YT, Kim BY. Phosphorylation of human enhancer filamentation 1 (HEF1) stimulates interaction with Polo-like kinase 1 leading to HEF1 localization to focal adhesions. J Biol Chem 2018; 293:847-862. [PMID: 29191835 PMCID: PMC5777258 DOI: 10.1074/jbc.m117.802587] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 11/09/2017] [Indexed: 11/06/2022] Open
Abstract
Elevated expression of human enhancer filamentation 1 (HEF1; also known as NEDD9 or Cas-L) is an essential stimulus for the metastatic process of various solid tumors. This process requires HEF1 localization to focal adhesions (FAs). Although the association of HEF1 with FAs is considered to play a role in cancer cell migration, the mechanism targeting HEF1 to FAs remains unclear. Moreover, up-regulation of Polo-like kinase 1 (Plk1) positively correlates with human cancer metastasis, yet how Plk1 deregulation promotes metastasis remains elusive. Here, we report that casein kinase 1δ (CK1δ) phosphorylates HEF1 at Ser-780 and Thr-804 and that these phosphorylation events promote a physical interaction between Plk1 and HEF1. We found that this interaction is critical for HEF1 translocation to FAs and for inducing migration of HeLa cells. Plk1-docking phosphoepitopes were mapped/confirmed in HEF1 by various methods, including X-ray crystallography, and mutated for functional analysis in HeLa cells. In summary, our results reveal the role of a phosphorylation-dependent HEF1-Plk1 complex in HEF1 translocation to FAs to induce cell migration. Our findings provide critical mechanistic insights into the HEF1-Plk1 complex-dependent localization of HEF1 to FAs underlying the metastatic process and may therefore contribute to the development of new cancer therapies.
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Affiliation(s)
- Kyung Ho Lee
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea,
| | - Jeong-Ah Hwang
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
- the Research Institute of Medical Sciences, Department of Physiology, College of Medicine, Chungnam National University, Daejeon 35015, Korea
| | - Sun-Ok Kim
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
| | - Jung Hee Kim
- the Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
| | - Sang Chul Shin
- the Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
| | - Eunice EunKyeong Kim
- the Biomedical Research Institute, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Korea
| | - Kyung S Lee
- the Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892
| | - Kunsoo Rhee
- the Department of Biological Sciences, Seoul National University, Seoul 08826, Korea
| | - Byeong Hwa Jeon
- the Research Institute of Medical Sciences, Department of Physiology, College of Medicine, Chungnam National University, Daejeon 35015, Korea
| | - Jeong Kyu Bang
- the Division of Magnetic Resonance, Korea Basic Science Institute, Ochang 28119, Korea
| | - Hyunjoo Cha-Molstad
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
| | - Nak-Kyun Soung
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
| | - Jae-Hyuk Jang
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
| | - Sung-Kyun Ko
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
| | - Hee Gu Lee
- the Genome Structure Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea, and
| | - Jong Seog Ahn
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea
| | - Yong Tae Kwon
- the Protein Metabolism Medical Research Center and Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul 03080, Korea
| | - Bo Yeon Kim
- From the World Class Institute, Anticancer Agent Research Center, Korea Research Institute of Bioscience and Biotechnology, 30 Yeongudanji-ro, Ochang, Cheongwon, Chungbuk 28116, Korea,
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25
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Mushtaq AU, Lee Y, Hwang E, Bang JK, Hong E, Byun Y, Song JJ, Jeon YH. Biophysical characterization of the basic cluster in the transcription repression domain of human MeCP2 with AT-rich DNA. Biochem Biophys Res Commun 2018; 495:145-150. [DOI: 10.1016/j.bbrc.2017.10.169] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
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26
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Ko SJ, Kim MK, Bang JK, Seo CH, Luchian T, Park Y. Macropis fulvipes Venom component Macropin Exerts its Antibacterial and Anti-Biofilm Properties by Damaging the Plasma Membranes of Drug Resistant Bacteria. Sci Rep 2017; 7:16580. [PMID: 29185466 PMCID: PMC5707368 DOI: 10.1038/s41598-017-16784-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 11/14/2017] [Indexed: 01/10/2023] Open
Abstract
The abuse of antibiotics for disease treatment has led to the emergence of multidrug resistant bacteria. Antimicrobial peptides, found naturally in various organisms, have received increasing interest as alternatives to conventional antibiotics because of their broad spectrum antimicrobial activity and low cytotoxicity. In a previous report, Macropin, isolated from bee venom, exhibited antimicrobial activity against both gram-positive and negative bacteria. In the present study, Macropin was synthesized and its antibacterial and anti-biofilm activities were tested against bacterial strains, including gram-positive and negative bacteria, and drug resistant bacteria. Moreover, Macropin did not exhibit hemolytic activity and cytotoxicity to keratinocytes, whereas Melittin, as a positive control, showed very high toxicity. Circular dichroism assays showed that Macropin has an α-helical structure in membrane mimic environments. Macropin binds to peptidoglycan and lipopolysaccharide and kills the bacteria by disrupting their membranes. Moreover, the fractional inhibitory concentration index indicated that Macropin has additive and partially synergistic effects with conventional antibiotics against drug resistant bacteria. Thus, our study suggested that Macropin has potential for use of an antimicrobial agent for infectious bacteria, including drug resistant bacteria.
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Affiliation(s)
- Su Jin Ko
- Department of Biomedical Science, Chosun University, Gwangju, 61452, Korea
| | - Min Kyung Kim
- Department of Biomedical Science, Chosun University, Gwangju, 61452, Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University, Kongju, 314-701, South Korea
| | - Tudor Luchian
- Department of Physics, Alexandru I. Cuza University, Iasi, Romania.
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, 61452, Korea. .,Research Center for Proteineous Materials, Chosun University, Gwangju, 61452, Korea.
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27
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Choi H, Ham SY, Cha E, Shin Y, Kim HS, Bang JK, Son SH, Park HD, Byun Y. Structure–Activity Relationships of 6- and 8-Gingerol Analogs as Anti-Biofilm Agents. J Med Chem 2017; 60:9821-9837. [DOI: 10.1021/acs.jmedchem.7b01426] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hyunsuk Choi
- College
of Pharmacy, Korea University, 2511 Sejong-ro,
Jochiwon-eup, Sejong 30019, Republic of Korea
| | - So-Young Ham
- School
of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
| | - Eunji Cha
- School
of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
| | - Yujin Shin
- College
of Pharmacy, Korea University, 2511 Sejong-ro,
Jochiwon-eup, Sejong 30019, Republic of Korea
| | - Han-Shin Kim
- School
of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
| | - Jeong Kyu Bang
- Division
of Magnetic Resonance, Korea Basic Science Institute, 161 Yeongudanji-ro,
Ochang-eup, Cheongwon-gu, Cheongju-si, Chungcheongbuk-do 28119, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Sang-Hyun Son
- College
of Pharmacy, Korea University, 2511 Sejong-ro,
Jochiwon-eup, Sejong 30019, Republic of Korea
| | - Hee-Deung Park
- School
of Civil, Environmental and Architectural Engineering, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
- KU-KIST
Graduate School of Converging Science and Technology, Korea University, 145
Anam-ro, Seongbuk-Gu, Seoul 02841, Republic of Korea
| | - Youngjoo Byun
- College
of Pharmacy, Korea University, 2511 Sejong-ro,
Jochiwon-eup, Sejong 30019, Republic of Korea
- Biomedical
Research Center, Korea University Guro Hospital, 148 Gurodong-ro, Guro-gu, Seoul 08308, Republic of Korea
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Han HM, Ko S, Cheong MJ, Bang JK, Seo CH, Luchian T, Park Y. Myxinidin2 and myxinidin3 suppress inflammatory responses through STAT3 and MAPKs to promote wound healing. Oncotarget 2017; 8:87582-87597. [PMID: 29152103 PMCID: PMC5675655 DOI: 10.18632/oncotarget.20908] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/27/2017] [Indexed: 02/07/2023] Open
Abstract
Skin wounds are continuously exposed to bacteria and can easily become infected. Infected wounds require antibiotic treatment, and infections caused by drug-resistant bacteria are an important public health problem. Antimicrobial peptides have broad-spectrum antibacterial activity, induce little or no drug resistance and may be suitable for treating skin infections caused by drug-resistant bacteria. We previously reported the design and function of myxinidin and myxinidin analogues. Here we showed that myxinidin2 and myxinidin3 exhibit antimicrobial and anti-biofilm activities against antibiotic-resistant Staphylococcus aureus, Acinetobacter baumannii, and Pseudomonas aeruginosa in high salt environments and in gelatin. Moreover, these peptides facilitated infected wound healing by decreasing inflammation through suppression of IL-6, IL-8, and TNF-α and regulation of downstream mediators such as STAT3, p38, JNK, and EGFR. In a mouse skin wound model infected with antibiotic-resistant bacteria, myxinidin2 and myxinidin3 eliminated the infection and enhanced wound healing. We therefore propose the use of these peptides for treating infected wounds and burns.
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Affiliation(s)
- Hyo Mi Han
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Sujin Ko
- Department of Biomedical Science, Chosun University, Gwangju, Korea
| | - Min-Ju Cheong
- Department of Life Science, Chosun University, Gwangju, Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Korea
| | - Chang Ho Seo
- Department of Bioinformatics, Kongju National University, Kongju, Korea
| | - Tudor Luchian
- Department of Physics, Alexandru I. Cuza University, Iasi, Romania
| | - Yoonkyung Park
- Department of Biomedical Science, Chosun University, Gwangju, Korea.,Research Center for Proteinaceous Materials, Chosun University, Gwangju, Korea
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Jeon D, Jeong MC, Jacob B, Bang JK, Kim EH, Cheong C, Jung ID, Park Y, Kim Y. Investigation of cationicity and structure of pseudin-2 analogues for enhanced bacterial selectivity and anti-inflammatory activity. Sci Rep 2017; 7:1455. [PMID: 28469145 PMCID: PMC5431190 DOI: 10.1038/s41598-017-01474-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 03/28/2017] [Indexed: 12/14/2022] Open
Abstract
Pseudin-2 (Ps), isolated from the frog Pseudis paradoxa, exhibits potent antibacterial activity and cytotoxicity. To develop antimicrobial peptides with anti-inflammatory activity and low cytotoxicity, we designed Ps analogues with Lys substitutions, resulting in elevated amphipathic α-helical structure and cationicity. We further substituted Gly11 with Pro (Ps-P analogues) to increase bacterial cell selectivity. Ps analogues retained antimicrobial activity and exhibited reduced cytotoxicity, whereas Ps-P analogues exhibited lower cytotoxicity and antimicrobial activity. Tertiary structures revealed that Ps has a linear α-helix from Leu2 to Glu24, whereas Ps-P has a bend at Pro11 between two short α-helixes. Using various biophysical experiments, we found that Ps analogues produced much higher membrane depolarization than Ps-P analogues, whereas Ps-P analogues may penetrate bacterial cell membranes. Ps and its analogue Ps-K18 exhibited potent anti-inflammatory activity in LPS-stimulated RAW264.7 and mouse dendritic cells via a mechanism involving the Toll-like receptor 4 (TLR4) pathway. These activities may arise from their direct inhibition of the formation of TLR4-MD-2_LPS complex, implying that amphipathic α-helical structure with an optimum balance between enhanced cationicity and hydrophobicity may be essential for their anti-inflammatory activity. The bent structure provided by Pro substitution plays an important role in enhancing bacterial cell selectivity and cell penetration.
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Affiliation(s)
- Dasom Jeon
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Min-Cheol Jeong
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Binu Jacob
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, 28119, Korea
| | - Eun-Hee Kim
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, 28119, Korea
| | - Chaejoon Cheong
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, 28119, Korea
| | - In Duk Jung
- Department of Immunology, Lab of Dendritic Cell Differentiation & Regulation, School of Medicine, Konkuk University, Chungju, 380-701, Korea
| | - Yoonkyung Park
- Department of Biomedical Science and Research Center for Proteinaceous Materials (RCPM), Chosun University, Gwangju, 61452, Korea
| | - Yangmee Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 05029, Korea.
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Gunasekaran P, Lee SR, Jeong SM, Kwon JW, Takei T, Asahina Y, Bang G, Kim S, Ahn M, Ryu EK, Kim HN, Nam KY, Shin SY, Hojo H, Namgoong S, Kim NH, Bang JK. Cover Picture: Pyrrole-Based Macrocyclic Small-Molecule Inhibitors That Target Oocyte Maturation (ChemMedChem 8/2017). ChemMedChem 2017. [DOI: 10.1002/cmdc.201700205] [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: 11/09/2022]
Affiliation(s)
- Pethaiah Gunasekaran
- Molecular Embryology Laboratory, Department of Animal Sciences; Chungbuk National University; Chung-Buk 361-763 Republic of Korea
| | - So-Rim Lee
- Molecular Embryology Laboratory, Department of Animal Sciences; Chungbuk National University; Chung-Buk 361-763 Republic of Korea
| | - Seung-Min Jeong
- Molecular Embryology Laboratory, Department of Animal Sciences; Chungbuk National University; Chung-Buk 361-763 Republic of Korea
| | - Jeong-Woo Kwon
- Molecular Embryology Laboratory, Department of Animal Sciences; Chungbuk National University; Chung-Buk 361-763 Republic of Korea
| | - Toshiki Takei
- Institute for Protein Research; Osaka University; 3-2 Yamadaoka Suita Osaka 565-0871 Japan
| | - Yuya Asahina
- Institute for Protein Research; Osaka University; 3-2 Yamadaoka Suita Osaka 565-0871 Japan
| | - Geul Bang
- Biomedical Omics Group; Korea Basic Science Institute; Ochang Chung-Buk 363-883 Republic of Korea
| | - Seongnyeon Kim
- Biomedical Omics Group; Korea Basic Science Institute; Ochang Chung-Buk 363-883 Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance; Korea Basic Science Institute; Ochang Chung-Buk 363-883 Republic of Korea
| | - Eun Kyung Ryu
- Division of Magnetic Resonance; Korea Basic Science Institute; Ochang Chung-Buk 363-883 Republic of Korea
- Department of Bio-analytical Science; University of Science & Technology; Daejeon 34113 Republic of Korea
| | - Hak Nam Kim
- Division of Magnetic Resonance; Korea Basic Science Institute; Ochang Chung-Buk 363-883 Republic of Korea
| | - Ki-Yub Nam
- Pharos I&BT Co. Ltd.; Gyeonggi-do 14059 Republic of Korea
| | - Song Yub Shin
- Department of Medical Science, Graduate School and Department of Cellular & Molecular Medicine; School of Medicine, Chosun University; Gwangju 501-759 Republic of Korea
| | - Hironobu Hojo
- Institute for Protein Research; Osaka University; 3-2 Yamadaoka Suita Osaka 565-0871 Japan
| | - Suk Namgoong
- Molecular Embryology Laboratory, Department of Animal Sciences; Chungbuk National University; Chung-Buk 361-763 Republic of Korea
| | - Nam-Hyung Kim
- Molecular Embryology Laboratory, Department of Animal Sciences; Chungbuk National University; Chung-Buk 361-763 Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance; Korea Basic Science Institute; Ochang Chung-Buk 363-883 Republic of Korea
- Department of Bio-analytical Science; University of Science & Technology; Daejeon 34113 Republic of Korea
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31
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Gunasekaran P, Lee SR, Jeong SM, Kwon JW, Takei T, Asahina Y, Bang G, Kim S, Ahn M, Ryu EK, Kim HN, Nam KY, Shin SY, Hojo H, Namgoong S, Kim NH, Bang JK. Pyrrole-Based Macrocyclic Small-Molecule Inhibitors That Target Oocyte Maturation. ChemMedChem 2017; 12:580-589. [PMID: 28296169 DOI: 10.1002/cmdc.201700048] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/13/2017] [Indexed: 11/08/2022]
Abstract
Polo-like kinase 1 (PLK1) plays crucial roles in various stages of oocyte maturation. Recently, we reported that the peptidomimetic compound AB103-8, which targets the polo box domain (PBD) of PLK1, affects oocyte meiotic maturation and the resumption of meiosis. However, to overcome the drawbacks of peptidic compounds, we designed and synthesized a series of pyrrole-based small-molecule inhibitors and tested them for their effects on the rates of porcine oocyte maturation. Among them, the macrocyclic compound (E/Z)-3-(2,16-dioxo-19-(4-phenylbutyl)-3,19-diazabicyclo[15.2.1]icosa-1(20),6,17-trien-3-yl)propyl dihydrogen phosphate (4) showed the highest inhibitory activity with enhanced inhibition against embryonic blastocyst formation. Furthermore, the addition of this compound to culture media efficiently blocked the maturation of porcine and mouse oocytes, indicating its ability to penetrate the zona pellucida and cell membrane. We investigated mouse oocytes treated with compound 4, and the resulting impairment of spindle formation confirmed PLK1 inhibition. Finally, molecular modeling studies with PLK1 PBD also confirmed the presence of significant interactions between compound 4 and PLK1 PBD binding pocket residues, including those in the phosphate, tyrosine-rich, and pyrrolidine binding pockets. Collectively, these results suggest that the macrocyclic compound 4 may serve as a promising template for the development of novel contraceptive agents.
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Affiliation(s)
- Pethaiah Gunasekaran
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - So-Rim Lee
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Seung-Min Jeong
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Jeong-Woo Kwon
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Toshiki Takei
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yuya Asahina
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Geul Bang
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Seongnyeon Kim
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Eun Kyung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Hak Nam Kim
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Ki-Yub Nam
- Pharos I&BT Co. Ltd., Gyeonggi-do, 14059, Republic of Korea
| | - Song Yub Shin
- Department of Medical Science, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Hironobu Hojo
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Suk Namgoong
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Nam-Hyung Kim
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
- Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
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Ahn M, Gunasekaran P, Rajasekaran G, Kim EY, Lee SJ, Bang G, Cho K, Hyun JK, Lee HJ, Jeon YH, Kim NH, Ryu EK, Shin SY, Bang JK. Pyrazole derived ultra-short antimicrobial peptidomimetics with potent anti-biofilm activity. Eur J Med Chem 2016; 125:551-564. [PMID: 27718471 DOI: 10.1016/j.ejmech.2016.09.071] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/20/2016] [Accepted: 09/21/2016] [Indexed: 12/18/2022]
Abstract
In this study, we report on the first chemical synthesis of ultra-short pyrazole-arginine based antimicrobial peptidomimetics derived from the newly synthesized N-alkyl/aryl pyrazole amino acids. Through the systematic tuning of hydrophobicity, charge, and peptide length, we identified the shortest peptide Py11 with the most potent antimicrobial activity. Py11 displayed greater antimicrobial activity against antibiotic-resistant bacteria, including MRSA, MDRPA, and VREF, which was approximately 2-4 times higher than that of melittin. Besides its higher selectivity (therapeutic index) toward bacterial cells than LL-37, Py11 showed highly increased proteolytic stability against trypsin digestion and maintained its antimicrobial activity in the presence of physiological salts. Interestingly, Py11 exhibited higher anti-biofilm activity against MDRPA compared to LL-37. The results from fluorescence spectroscopy and transmission electron microscopy (TEM) suggested that Py11 kills bacterial cells possibly by integrity disruption damaging the cell membrane, leading to the cytosol leakage and eventual cell lysis. Furthermore, Py11 displayed significant anti-inflammatory (endotoxin-neutralizing) activity by inhibiting LPS-induced production of nitric oxide (NO) and TNF-α. Collectively, our results suggest that Py11 may serve as a model compound for the design of antimicrobial and antisepsis agents.
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Affiliation(s)
- Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Pethaiah Gunasekaran
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Ganesan Rajasekaran
- Department of Medical Science, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Eun Young Kim
- Department of Medical Science, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 501-759, Republic of Korea
| | - Soo-Jae Lee
- College of Pharmacy, Chungbuk National University, Chungbuk, 361-763, Republic of Korea
| | - Geul Bang
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Kun Cho
- Biomedical Omics Group, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea
| | - Jae-Kyung Hyun
- Division of Electron Microscopic Research, Korea Basic Science Institute, 113 Gwahakro, Daejeon, 305-333, Republic of Korea
| | - Hyun-Ju Lee
- Division of Electron Microscopic Research, Korea Basic Science Institute, 113 Gwahakro, Daejeon, 305-333, Republic of Korea; Department of Chemistry, Chungnam National University, Daejeon, 305-764, Republic of Korea
| | - Young Ho Jeon
- College of Pharmacy, Korea University, 2511 Sejong-Ro, Sejong, 30019, Republic of Korea
| | - Nam-Hyung Kim
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Chung-Buk, 361-763, Republic of Korea
| | - Eun Kyoung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea; Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea
| | - Song Yub Shin
- Department of Medical Science, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, 501-759, Republic of Korea.
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, 363-883, Republic of Korea; Department of Bio-analytical Science, University of Science & Technology, Daejeon, 34113, Republic of Korea.
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33
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Kim HY, Lee WC, Murugan RN, Ahn M, Bang JK. Structural analysis of human polo-like kinase 1 polo box domain in complex with peptide inhibitors. Acta Crystallogr A Found Adv 2016. [DOI: 10.1107/s2053273316096704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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34
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Liang S, Yuan B, Kwon JW, Ahn M, Cui XS, Bang JK, Kim NH. Effect of antifreeze glycoprotein 8 supplementation during vitrification on the developmental competence of bovine oocytes. Theriogenology 2016; 86:485-494.e1. [PMID: 26948296 DOI: 10.1016/j.theriogenology.2016.01.032] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [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: 12/30/2015] [Revised: 01/26/2016] [Accepted: 01/30/2016] [Indexed: 11/19/2022]
Abstract
The purpose of this study was to investigate the effect of antifreeze glycoprotein 8 (AFGP8) supplementation during vitrification on the survival, fertilization, and embryonic development of bovine oocytes and the underlying molecular mechanism(s). Survival, fertilization, early embryonic development, apoptosis, DNA double-strand breaks, reactive oxygen species levels, meiotic cytoskeleton assembly, chromosome alignment, and energy status of mitochondria were measured in the present experiments. Compared with that in the nonsupplemented group; survival, monospermy, blastocyst formation rates, and blastomere counts were significantly higher in the AFGP8-supplemented animals. Oocytes of the latter group also presented fewer double-strand breaks and lower cathepsin B and caspase activities. Rates of normal spindle organization and chromosome alignment, actin filament impairment, and mitochondrial distribution were significantly higher in the AFGP8-supplemented group. In addition, intracellular reactive oxygen species levels significantly decreased in the AFGP8-supplemented groups, maintaining a higher ΔΨm than that in the nonsupplemented group. Taken together, these results indicated that supplementation with AFGP8 during vitrification has a protective effect on bovine oocytes against chilling injury.
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Affiliation(s)
- Shuang Liang
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Bao Yuan
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea; Department of Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China
| | - Jeong-Woo Kwon
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Chungbuk, Republic of Korea
| | - Xiang-Shun Cui
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Chungbuk, Republic of Korea
| | - Nam-Hyung Kim
- Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea; Department of Laboratory Animal Center, College of Animal Sciences, Jilin University, Changchun, China.
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35
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Jia JL, Han YH, Kim HC, Ahn M, Kwon JW, Luo Y, Gunasekaran P, Lee SJ, Lee KS, Kyu Bang J, Kim NH, Namgoong S. Structural basis for recognition of Emi2 by Polo-like kinase 1 and development of peptidomimetics blocking oocyte maturation and fertilization. Sci Rep 2015; 5:14626. [PMID: 26459104 PMCID: PMC4602232 DOI: 10.1038/srep14626] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 09/01/2015] [Indexed: 11/08/2022] Open
Abstract
In a mammalian oocyte, completion of meiosis is suspended until fertilization by a sperm, and the cell cycle is arrested by a biochemical activity called cytostatic factor (CSF). Emi2 is one of the CSFs, and it maintains the protein level of maturation promoting factor (MPF) by inhibiting ubiquitin ligase anaphase promoting complex/cyclosome (APC/C). Degradation of Emi2 via ubiquitin-mediated proteolysis after fertilization requires phosphorylation by Polo-like kinase 1 (Plk1). Therefore, recognition and phosphorylation of Emi2 by Plk1 are crucial steps for cell cycle resumption, but the binding mode of Emi2 and Plk1 is poorly understood. Using biochemical assays and X-ray crystallography, we found that two phosphorylated threonines (Thr(152) and Thr(176)) in Emi2 are each responsible for the recruitment of one Plk1 molecule by binding to its C-terminal polo box domain (PBD). We also found that meiotic maturation and meiosis resumption via parthenogenetic activation were impaired when Emi2 interaction with Plk1-PBD was blocked by a peptidomimetic called 103-8. Because of the inherent promiscuity of kinase inhibitors, our results suggest that targeting PBD of Plk1 may be an effective strategy for the development of novel and specific contraceptive agents that block oocyte maturation and/or fertilization.
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Affiliation(s)
- Jia-Lin Jia
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
| | - Young-Hyun Han
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
| | - Hak-Cheol Kim
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Korea
| | - Jeong-Woo Kwon
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
| | - Yibo Luo
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
| | | | - Soo-Jae Lee
- College of Pharmacy, Chungbuk National University, Republic of Korea
| | - Kyung S. Lee
- National Cancer Institute, National Institute of Health, Rockville, Maryland, United States
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Korea
| | - Nam-Hyung Kim
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
| | - Suk Namgoong
- Department of Animal Sciences, Chungbuk National University, Republic of Korea
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36
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Son J, Jo CH, Murugan RN, Bang JK, Hwang KY, Lee WC. Crystal structure of Legionella pneumophila type IV secretion system effector LegAS4. Biochem Biophys Res Commun 2015; 465:817-24. [PMID: 26315269 DOI: 10.1016/j.bbrc.2015.08.094] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 08/21/2015] [Indexed: 12/15/2022]
Abstract
The SET domain of LegAS4, a type IV secretion system effector of Legionella pneumophila, is a eukaryotic protein motif involved in histone methylation and epigenetic modulation. The SET domain of LegAS4 is involved in the modification of Lys4 of histone H3 (H3K4) in the nucleolus of the host cell, thereby enhancing heterochromatic rDNA transcription. Moreover, LegAS4 contains an ankyrin repeat domain of unknown function at its C-terminal region. Here, we report the crystal structure of LegAS4 in complex with S-adenosyl-l-methionine (SAM). Our data indicate that the ankyrin repeats interact extensively with the SET domain, especially with the SAM-binding amino acids, through conserved residues. Conserved surface analysis marks Glu159, Glu203, and Glu206 on the SET domain serve as candidate residues involved in interaction with the positively charged histone tail. Conserved surface residues on the ankyrin repeat domain surround a small pocket, which is suspected to serve as a binding site for an unknown ligand.
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Affiliation(s)
- Jonghyeon Son
- Division of Biotechnology, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713, Republic of Korea
| | - Chang Hwa Jo
- Division of Biotechnology, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713, Republic of Korea
| | - Ravichandran N Murugan
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Republic of Korea
| | - Kwang Yeon Hwang
- Division of Biotechnology, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713, Republic of Korea.
| | - Woo Cheol Lee
- Division of Biotechnology, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713, Republic of Korea; Institute of Life Science and Natural Resources, Korea University, Seoul 136-713, Republic of Korea.
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Shin A, Lee E, Jeon D, Park YG, Bang JK, Park YS, Shin SY, Kim Y. Peptoid-Substituted Hybrid Antimicrobial Peptide Derived from Papiliocin and Magainin 2 with Enhanced Bacterial Selectivity and Anti-inflammatory Activity. Biochemistry 2015; 54:3921-31. [PMID: 26053120 DOI: 10.1021/acs.biochem.5b00392] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Antimicrobial peptides (AMPs) are important components of the host innate immune system. Papiliocin is a 37-residue AMP purified from larvae of the swallowtail butterfly Papilio xuthus. Magainin 2 is a 23-residue AMP purified from the skin of the African clawed frog Xenopus laevis. We designed an 18-residue hybrid peptide (PapMA) incorporating N-terminal residues 1-8 of papiliocin and N-terminal residues 4-12 of magainin 2, joined by a proline (Pro) hinge. PapMA showed high antimicrobial activity but was cytotoxic to mammalian cells. To decrease PapMA cytotoxicity, we designed a lysine (Lys) peptoid analogue, PapMA-k, which retained high antimicrobial activity but displayed cytotoxicity lower than that of PapMA. Fluorescent dye leakage experiments and confocal microscopy showed that PapMA targeted bacterial cell membranes whereas PapMA-k penetrated bacterial cell membranes. Nuclear magnetic resonance experiments revealed that PapMA contained an N-terminal α-helix from Lys(3) to Lys(7) and a C-terminal α-helix from Lys(10) to Lys(17), with a Pro(9) hinge between them. PapMA-k also had two α-helical structures in the same region connected with a flexible hinge residue at Nlys(9), which existed in a dynamic equilibrium of cis and trans conformers. Using lipopolysaccharide-stimulated RAW264.7 macrophages, the anti-inflammatory activity of PapMA and PapMA-k was confirmed by inhibition of nitric oxide and inflammatory cytokine production. In addition, treatment with PapMA and PapMA-k decreased the level of ultraviolet irradiation-induced expression of genes encoding matrix metalloproteinase-1 (MMP-1), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in human keratinocyte HaCaT cells. Thus, PapMA and PapMA-k are potent peptide antibiotics with antimicrobial and anti-inflammatory activity, with PapMA-k displaying enhanced bacterial selectivity.
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Affiliation(s)
- Areum Shin
- †Department of Bioscience and Biotechnology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
| | - Eunjung Lee
- †Department of Bioscience and Biotechnology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
| | - Dasom Jeon
- †Department of Bioscience and Biotechnology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
| | - Young-Guen Park
- †Department of Bioscience and Biotechnology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
| | - Jeong Kyu Bang
- ‡Division of Magnetic Resonance, Korea Basic Science Institute, 804-1 Yangchung-ri, Ochang, Chungbuk 363-883, Republic of Korea
| | - Yong-Sun Park
- §Department of Chemistry, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
| | - Song Yub Shin
- ∥Department of Bio-Materials, Graduate School, and Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju 501-759, Republic of Korea
| | - Yangmee Kim
- †Department of Bioscience and Biotechnology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Korea
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Park CH, Park JE, Kim TS, Kang YH, Soung NK, Zhou M, Kim NH, Bang JK, Lee KS. Mammalian Polo-like kinase 1 (Plk1) promotes proper chromosome segregation by phosphorylating and delocalizing the PBIP1·CENP-Q complex from kinetochores. J Biol Chem 2015; 290:8569-81. [PMID: 25670858 PMCID: PMC4375506 DOI: 10.1074/jbc.m114.623546] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 11/03/2014] [Revised: 02/09/2015] [Indexed: 01/10/2023] Open
Abstract
Mammalian Plk1 is critically required for proper M phase progression. Plk1 is self-recruited to prekinetochores/kinetochores by phosphorylating and binding to the Thr-78 motif of a kinetochore scaffold protein, PBIP1 (also called CENP-U/50), which forms a stable complex with another kinetochore component, CENP-Q. However, the mechanism regulating Plk1 localization to this site remains largely unknown. Here, we demonstrate that the PBIP1·CENP-Q complex became hyperphosphorylated and rapidly delocalized from kinetochores as cells entered mitosis. Plk1 phosphorylated the CENP-Q subunit of the PBIP1·CENP-Q complex at multiple sites, and mutation of nine Plk1-dependent phosphorylation sites to Ala (9A) enhanced CENP-Q association with chromatin and prolonged CENP-Q localization to kinetochores. Conversely, mutation of the nine sites to phospho-mimicking Asp/Glu (9D/E) residues dissociated CENP-Q from chromatin and kept the CENP-Q(9D/E) mutant from localizing to interphase prekinetochores. Strikingly, both the 9A and 9D/E mutants induced a defect in proper chromosome segregation, suggesting that both timely localization of the PBIP1·CENP-Q complex to prekinetochores and delocalization from kinetochores are critical for normal M phase progression. Notably, although Plk1 did not alter the level of PBIP1 and CENP-Q ubiquitination, Plk1-dependent phosphorylation and delocalization of these proteins from kinetochores appeared to indirectly lead to their degradation in the cytosol. Thus, we propose that Plk1 regulates the timing of the delocalization and ultimate destruction of the PBIP1·CENP-Q complex and that these processes are important not only for promoting Plk1-dependent mitotic progression, but also for resetting the timing of Plk1 recruitment to prekinetochores in the next cell cycle.
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Affiliation(s)
- Chi Hoon Park
- From the Laboratory of Metabolism, NCI, National Institutes of Health, Bethesda, Maryland 20892-4258
| | - Jung-Eun Park
- From the Laboratory of Metabolism, NCI, National Institutes of Health, Bethesda, Maryland 20892-4258
| | - Tae-Sung Kim
- From the Laboratory of Metabolism, NCI, National Institutes of Health, Bethesda, Maryland 20892-4258
| | - Young Hwi Kang
- the Immune and Vascular Cell Network Research Center, Department of Life Science and GT5 Program, Ewha Womans University, Seoul 120-750, Korea
| | - Nak-Kyun Soung
- the Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Chungbuk 363-883, Korea
| | - Ming Zhou
- the Laboratory of Proteomics and Analytical Technologies, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702
| | - Nam-Hyung Kim
- the Department of Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 Korea, and
| | - Jeong Kyu Bang
- the Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chungbuk, 363-883 Korea
| | - Kyung S Lee
- From the Laboratory of Metabolism, NCI, National Institutes of Health, Bethesda, Maryland 20892-4258,
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Ahn M, Han YH, Park JE, Kim S, Lee WC, Lee SJ, Gunasekaran P, Cheong C, Shin SY, Kim HY, Ryu EK, Murugan RN, Kim NH, Bang JK. A new class of peptidomimetics targeting the polo-box domain of Polo-like kinase 1. J Med Chem 2015; 58:294-304. [PMID: 25347203 DOI: 10.1021/jm501147g] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Recent progress in the development of peptide-derived Polo-like kinase (Plk1) polo-box domain (PBD) inhibitors has led to the synthesis of multiple peptide ligands with high binding affinity and selectivity. However, few systematic analyses have been conducted to identify key Plk1 residues and characterize their interactions with potent Plk1 peptide inhibitors. We performed systematic deletion analysis using the most potent 4j peptide and studied N-terminal capping of the minimal peptide with diverse organic moieties, leading to the identification of the peptidomimetic 8 (AB-103) series with high binding affinity and selectivity. To evaluate the bioavailability of short peptidomimetic ligands, PEGylated 8 series were synthesized and incubated with HeLa cells to test for cellular uptake, antiproliferative activity, and Plk1 kinase inhibition. Finally, crystallographic studies of the Plk1 PBD in complex with peptidomimetics 8 and 22 (AB-103-5) revealed the presence of two hydrogen bond interactions responsible for their high binding affinity and selectivity.
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Affiliation(s)
- Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute , 804-1, Yangcheong Ri, Ochang, Chungbuk, Cheongwon 363-883, Republic of Korea
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Kim D, Bang JK, Kim SH. Multi-Frequency, Multi-Technique Pulsed EPR Investigation of the Copper Binding Site of Murine Amyloid β Peptide. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kim SM, Chae MK, Lee C, Yim MS, Bang JK, Ryu EK. Enhanced cellular uptake of a TAT-conjugated peptide inhibitor targeting the polo-box domain of polo-like kinase 1. Amino Acids 2014; 46:2595-603. [PMID: 25151148 DOI: 10.1007/s00726-014-1798-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 06/25/2014] [Indexed: 10/24/2022]
Abstract
In the last decade, drug delivery systems using biologically active molecules for cellular uptake of therapeutic targets have been studied for application and testing in clinical trials. For instance, the transactivator of transcription (TAT) peptide, or cell-penetrating peptide, was shown to deliver a variety of cargoes, including proteins, peptides, and nucleic acids. Polo-like kinase 1 (Plk1) plays key roles in the regulation of cell cycle events (e.g., mitotic progression). Plk1 was also shown to be activated and highly expressed in proliferating cells such as tumor cells. Amongst these phosphopeptides, Pro-Leu-His-Ser-p-Thr (PLHSpT), which is the minimal sequence for polo-box domain (PBD) binding, was shown to have an inhibitory effect and to induce apoptotic cell death. However, the phosphopeptide showed low cell membrane penetration. Thus, in our study, we synthesized Plk1 inhibitor TAT-PLHSpT to improve agent internalization into cells. TAT-PLHSpT was shown to internalize into the nucleus. The conjugation of TAT with PLHSpT inhibited cancer cell growth and survival. Moreover, it showed an increase in cellular uptake and inhibition of Plk1 kinase activity. Further studies are needed for biological evaluation of the new peptide in tumor-bearing animal models (in vivo). Our results prove that TAT-PLHSpT is a good candidate for specific PBD binding of Plk1 as a therapeutic agent for humans.
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Affiliation(s)
- Sung Min Kim
- Magnetic Resonance Research Center, Korea Basic Science Institute, 804-1 Ochang, Cheongju, Chungbuk, 363-883, Republic of Korea
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Srinivasrao G, Park JE, Kim S, Ahn M, Cheong C, Nam KY, Gunasekaran P, Hwang E, Kim NH, Shin SY, Lee KS, Ryu E, Bang JK. Design and synthesis of a cell-permeable, drug-like small molecule inhibitor targeting the polo-box domain of polo-like kinase 1. PLoS One 2014; 9:e107432. [PMID: 25211362 PMCID: PMC4161390 DOI: 10.1371/journal.pone.0107432] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 08/09/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Polo-like kinase-1 (Plk1) plays a crucial role in cell proliferation and the inhibition of Plk1 has been considered as a potential target for specific inhibitory drugs in anti-cancer therapy. Several research groups have identified peptide-based inhibitors that target the polo-box domain (PBD) of Plk1 and bind to the protein with high affinity in in vitro assays. However, inadequate proteolytic resistance and cell permeability of the peptides hinder the development of these peptide-based inhibitors into novel therapeutic compounds. METHODOLOGY/PRINCIPAL FINDINGS In order to overcome the shortcomings of peptide-based inhibitors, we designed and synthesized small molecule inhibitors. Among these molecules, bg-34 exhibited a high binding affinity for Plk1-PBD and it could cross the cell membrane in its unmodified form. Furthermore, bg-34-dependent inhibition of Plk1-PBD was sufficient for inducing apoptosis in HeLa cells. Moreover, modeling studies performed on Plk1-PBD in complex with bg-34 revealed that bg-34 can interact effectively with Plk1-PBD. CONCLUSION/SIGNIFICANCE We demonstrated that the molecule bg-34 is a potential drug candidate that exhibits anti-Plk1-PBD activity and possesses the favorable characteristics of high cell permeability and stability. We also determined that bg-34 induced apoptotic cell death by inhibiting Plk1-PBD in HeLa cells at the same concentration as PEGylated 4j peptide, which can inhibit Plk1-PBD activity 1000 times more effectively than bg-34 can in in vitro assays. This study may help to design and develop drug-like small molecule as Plk1-PBD inhibitor for better therapeutic activity.
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Affiliation(s)
- Ganipisetti Srinivasrao
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Jung-Eun Park
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Sungmin Kim
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Chaejoon Cheong
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Ky-Youb Nam
- Institute for Innovative Cancer Research and Department of Convergence Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Pethaiah Gunasekaran
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chung-Buk, Republic of Korea
| | - Eunha Hwang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Nam-Hyung Kim
- Molecular Embryology Laboratory, Department of Animal Sciences, Chungbuk National University, Cheongju, Chung-Buk, Republic of Korea
| | - Song Yub Shin
- Department of Bio-Materials, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Kyung S. Lee
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Eunkyung Ryu
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
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Ahn M, Jacob B, Gunasekaran P, Murugan RN, Ryu EK, Lee GH, Hyun JK, Cheong C, Kim NH, Shin SY, Bang JK. Poly-lysine peptidomimetics having potent antimicrobial activity without hemolytic activity. Amino Acids 2014; 46:2259-69. [DOI: 10.1007/s00726-014-1778-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 06/04/2014] [Indexed: 12/14/2022]
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Murugan RN, Jacob B, Ahn M, Hwang E, Sohn H, Park HN, Lee E, Seo JH, Cheong C, Nam KY, Hyun JK, Jeong KW, Kim Y, Shin SY, Bang JK. De novo design and synthesis of ultra-short peptidomimetic antibiotics having dual antimicrobial and anti-inflammatory activities. PLoS One 2013; 8:e80025. [PMID: 24302996 PMCID: PMC3841161 DOI: 10.1371/journal.pone.0080025] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 09/27/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Much attention has been focused on the design and synthesis of potent, cationic antimicrobial peptides (AMPs) that possess both antimicrobial and anti-inflammatory activities. However, their development into therapeutic agents has been limited mainly due to their large size (12 to 50 residues in length) and poor protease stability. METHODOLOGY/PRINCIPAL FINDINGS In an attempt to overcome the issues described above, a set of ultra-short, His-derived antimicrobial peptides (HDAMPs) has been developed for the first time. Through systematic tuning of pendant hydrophobic alkyl tails at the N(π)- and N(τ)-positions on His, and the positive charge of Arg, much higher prokaryotic selectivity was achieved, compared to human AMP LL-37. Additionally, the most potent HDAMPs showed promising dual antimicrobial and anti-inflammatory activities, as well as anti-methicillin-resistant Staphylococcus aureus (MRSA) activity and proteolytic resistance. Our results from transmission electron microscopy, membrane depolarization, confocal laser-scanning microscopy, and calcein-dye leakage experiments propose that HDAMP-1 kills microbial cells via dissipation of the membrane potential by forming pore/ion channels on bacterial cell membranes. CONCLUSION/SIGNIFICANCE The combination of the ultra-short size, high-prokaryotic selectivity, potent anti-MRSA activity, anti-inflammatory activity, and proteolytic resistance of the designed HDAMP-1, -3, -5, and -6 makes these molecules promising candidates for future antimicrobial therapeutics.
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Affiliation(s)
- Ravichandran N. Murugan
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Binu Jacob
- Department of Bio-Materials, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Eunha Hwang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Hoik Sohn
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas, United States of America
| | - Hyo-Nam Park
- Division of Electron Microscopic Research, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Eunjung Lee
- Department of Bioscience and Biotechnology, Institute of SMART Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Ji-Hyung Seo
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Chaejoon Cheong
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Ky-Youb Nam
- Bioinformatics and Molecular Design Research Center, Yonsei University Research Complex, Seoul, Republic of Korea
| | - Jae-Kyung Hyun
- Division of Electron Microscopic Research, Korea Basic Science Institute, Daejeon, Republic of Korea
| | - Ki-Woong Jeong
- Department of Bioscience and Biotechnology, Institute of SMART Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Yangmee Kim
- Department of Bioscience and Biotechnology, Institute of SMART Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Song Yub Shin
- Department of Bio-Materials, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
- * E-mail: (JKB); (SYS)
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
- * E-mail: (JKB); (SYS)
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Murugan RN, Ahn M, Lee WC, Kim HY, Song JH, Cheong C, Hwang E, Seo JH, Shin SY, Choi SH, Park JE, Bang JK. Exploring the binding nature of pyrrolidine pocket-dependent interactions in the polo-box domain of polo-like kinase 1. PLoS One 2013; 8:e80043. [PMID: 24223211 PMCID: PMC3819306 DOI: 10.1371/journal.pone.0080043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 09/26/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Over the years, a great deal of effort has been focused on the design and synthesis of potent, linear peptide inhibitors targeting the polo-like kinase 1 (Plk1), which is critically involved in multiple mitotic processes and has been established as an adverse prognostic marker for tumor patients. Plk1 localizes to its intracellular anchoring sites via its polo-box domain, and inhibiting the Plk1 polo-box domain has been considered as an approach to circumvent the specificity problems associated with inhibiting the conserved adenosine triphosphate-binding pocket. The polo-box domain consists of two different binding regions, such as the unique, broader pyrrolidine-binding pocket and the conserved, narrow, Tyr-rich hydrophobic channel, among the three Plk polo-box domains (Plks 1-3), respectively. Therefore, the studies that provide insights into the binding nature of the unique, broader pyrrolidine-binding pocket might lead to the development of selective Plk1-inhibitory compounds. METHODOLOGY/PRINCIPAL FINDINGS In an attempt to retain the monospecificity by targeting the unique, broader pyrrolidine-binding pocket, here, for the first time, a systematic approach was undertaken to examine the structure-activity relationship of N-terminal-truncated PLHSpTM derivatives, to apply a site-directed ligand approach using bulky aromatic and non-aromatic systems, and to characterize the binding nature of these analogues using X-ray crystallographic studies. We have identified a new mode of binding interactions, having improved binding affinity and retaining the Plk1 polo-box domain specificity, at the pyrrolidine-binding pocket. Furthermore, our data revealed that the pyrrolidine-binding pocket was very specific to recognize a short and bulky hydrophobic ligand like adamantane, whereas the Tyr-rich hydrophobic channel was specific with lengthy and small hydrophobic groups. CONCLUSION/SIGNIFICANCE The progress made using our site-directed ligands validated this approach to specifically direct the ligand into the unique pyrrolidine-binding region, and it extends the applicability of the strategy for discovering selective protein-protein interaction inhibitors.
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Affiliation(s)
- Ravichandran N. Murugan
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Woo Cheol Lee
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Hye-Yeon Kim
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Jung Hyun Song
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Chaejoon Cheong
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Eunha Hwang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Ji-Hyung Seo
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
| | - Song Yub Shin
- Department of Bio-Materials, Graduate School and Department of Cellular & Molecular Medicine, School of Medicine, Chosun University, Gwangju, Republic of Korea
| | - Sun Ho Choi
- Dong-A ST, Research Laboratories, YongIn, Gyeonggi-do, Republic of Korea
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Jung-Eun Park
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk, Republic of Korea
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Ahn M, Murugan RN, Jacob B, Hyun JK, Cheong C, Hwang E, Park HN, Seo JH, Srinivasrao G, Lee KS, Shin SY, Bang JK. Discovery of novel histidine-derived lipo-amino acids: Applied in the synthesis of ultra-short antimicrobial peptidomimetics having potent antimicrobial activity, salt resistance and protease stability. Eur J Med Chem 2013; 68:10-8. [DOI: 10.1016/j.ejmech.2013.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/16/2013] [Accepted: 07/18/2013] [Indexed: 11/25/2022]
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Murugan RN, Jacob B, Kim EH, Ahn M, Sohn H, Seo JH, Cheong C, Hyun JK, Lee KS, Shin SY, Bang JK. Non hemolytic short peptidomimetics as a new class of potent and broad-spectrum antimicrobial agents. Bioorg Med Chem Lett 2013; 23:4633-6. [DOI: 10.1016/j.bmcl.2013.06.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 06/04/2013] [Accepted: 06/07/2013] [Indexed: 11/16/2022]
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Bang JK, Lee JH, Murugan RN, Lee SG, Do H, Koh HY, Shim HE, Kim HC, Kim HJ. Antifreeze peptides and glycopeptides, and their derivatives: potential uses in biotechnology. Mar Drugs 2013; 11:2013-41. [PMID: 23752356 PMCID: PMC3721219 DOI: 10.3390/md11062013] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 04/22/2013] [Accepted: 05/10/2013] [Indexed: 01/14/2023] Open
Abstract
Antifreeze proteins (AFPs) and glycoproteins (AFGPs), collectively called AF(G)Ps, constitute a diverse class of proteins found in various Arctic and Antarctic fish, as well as in amphibians, plants, and insects. These compounds possess the ability to inhibit the formation of ice and are therefore essential to the survival of many marine teleost fishes that routinely encounter sub-zero temperatures. Owing to this property, AF(G)Ps have potential applications in many areas such as storage of cells or tissues at low temperature, ice slurries for refrigeration systems, and food storage. In contrast to AFGPs, which are composed of repeated tripeptide units (Ala-Ala-Thr)n with minor sequence variations, AFPs possess very different primary, secondary, and tertiary structures. The isolation and purification of AFGPs is laborious, costly, and often results in mixtures, making characterization difficult. Recent structural investigations into the mechanism by which linear and cyclic AFGPs inhibit ice crystallization have led to significant progress toward the synthesis and assessment of several synthetic mimics of AFGPs. This review article will summarize synthetic AFGP mimics as well as current challenges in designing compounds capable of mimicking AFGPs. It will also cover our recent efforts in exploring whether peptoid mimics can serve as structural and functional mimics of native AFGPs.
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Affiliation(s)
- Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Scienc Institute, Chungbuk 363-833, Korea; E-Mails: (J.K.B.); (R.N.M.)
| | - Jun Hyuck Lee
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mails: (J.H.L.); (S.G.L.); (H.D.); (H.Y.K.); (H.-E.S.)
- Department of Polar Sciences, University of Science and Technology, Incheon 406-840, Korea
| | - Ravichandran N. Murugan
- Division of Magnetic Resonance, Korea Basic Scienc Institute, Chungbuk 363-833, Korea; E-Mails: (J.K.B.); (R.N.M.)
| | - Sung Gu Lee
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mails: (J.H.L.); (S.G.L.); (H.D.); (H.Y.K.); (H.-E.S.)
- Department of Polar Sciences, University of Science and Technology, Incheon 406-840, Korea
| | - Hackwon Do
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mails: (J.H.L.); (S.G.L.); (H.D.); (H.Y.K.); (H.-E.S.)
- Department of Polar Sciences, University of Science and Technology, Incheon 406-840, Korea
| | - Hye Yeon Koh
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mails: (J.H.L.); (S.G.L.); (H.D.); (H.Y.K.); (H.-E.S.)
| | - Hye-Eun Shim
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mails: (J.H.L.); (S.G.L.); (H.D.); (H.Y.K.); (H.-E.S.)
| | - Hyun-Cheol Kim
- Division of Polar Climate Research, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mail:
| | - Hak Jun Kim
- Division of Polar Life Sciences, Korea Polar Research Institute, Incheon 406-840, Korea; E-Mails: (J.H.L.); (S.G.L.); (H.D.); (H.Y.K.); (H.-E.S.)
- Department of Polar Sciences, University of Science and Technology, Incheon 406-840, Korea
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +82-32-760-5550; Fax: +82-32-760-5598
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Murugan RN, Park JE, Lim D, Ahn M, Cheong C, Kwon T, Nam KY, Choi SH, Kim BY, Yoon DY, Yaffe MB, Yu DY, Lee KS, Bang JK. Development of cyclic peptomer inhibitors targeting the polo-box domain of polo-like kinase 1. Bioorg Med Chem 2013; 21:2623-34. [PMID: 23498919 PMCID: PMC7561269 DOI: 10.1016/j.bmc.2013.02.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [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: 01/11/2013] [Revised: 01/22/2013] [Accepted: 02/06/2013] [Indexed: 12/13/2022]
Abstract
The polo-box domain (PBD) of polo-like kinase 1 (Plk1) is essentially required for the function of Plk1 in cell proliferation. The availability of the phosphopeptide-binding pocket on PBD provides a unique opportunity to develop novel protein-protein interaction inhibitors. Recent identification of a minimal 5-residue-long phosphopeptide, PLHSpT, as a Plk1 PBD-specific ligand has led to the development of several peptide-based inhibitors, but none of them is cyclic peptide. Through the combination of single-peptoid mimics and thio-ether bridged cyclization, we successfully demonstrated for the first time two cyclic peptomers, PL-116 and PL-120, dramatically improved the binding affinity without losing mono-specificity against Plk1 PBD in comparison with the linear parental peptide, PLHSpT. These cyclic peptomers could serve as promising templates for future drug designs to inhibit Plk1 PBD.
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Affiliation(s)
- Ravichandran N. Murugan
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Cheongwon, Republic of Korea
| | - Jung-Eun Park
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 37, Room 3118, Bethesda, MD 20892, United States
| | - Dan Lim
- Department of Biology and Biological Engineering, Center for Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Mija Ahn
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Cheongwon, Republic of Korea
| | - Chaejoon Cheong
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Cheongwon, Republic of Korea
| | - Taeho Kwon
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 37, Room 3118, Bethesda, MD 20892, United States
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701, Republic of Korea
- World Class Institute, Korea Research Institute of Bioscience and Biotechnology, Ochang, Republic of Korea
| | - Ky-Youb Nam
- Bioinformatics and Molecular Design Research Center, B128A Yonsei University Research Complex, Shinchon-dong, Seoul 120-749, Republic of Korea
| | - Sun Ho Choi
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 37, Room 3118, Bethesda, MD 20892, United States
- Dong-A Pharmaceutical Co., Ltd., Research Laboratories, Yongin 449-905, Republic of Korea
| | - Bo Yeon Kim
- World Class Institute, Korea Research Institute of Bioscience and Biotechnology, Ochang, Republic of Korea
| | - Do-Young Yoon
- Department of Bioscience and Biotechnology, Bio/Molecular Informatics Center, Konkuk University, Seoul 143-701, Republic of Korea
| | - Michael B. Yaffe
- Department of Biology and Biological Engineering, Center for Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
| | - Dae-Yeul Yu
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea
| | - Kyung S. Lee
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 9000 Rockville Pike, Building 37, Room 3118, Bethesda, MD 20892, United States
| | - Jeong Kyu Bang
- Division of Magnetic Resonance, Korea Basic Science Institute, Ochang, Chung-Buk 363-883, Cheongwon, Republic of Korea
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Ahn M, Murugan RN, Shin SY, Kim HJ, Bang JK. Peptoid-based Positional Scanning Derivatives: Revealing the Optimum Residue Required for Ice Recrystallization Inhibition Activity for Every Position in the AFGPs. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.12.3931] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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