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Ortega L, Carrera C, Muñoz-Flores C, Salazar S, Villegas MF, Starck MF, Valenzuela A, Agurto N, Montesino R, Astuya A, Parra N, Pérez ET, Santibáñez N, Romero A, Ruíz P, Lamazares E, Reyes F, Sánchez O, Toledo JR, Acosta J. New insight into the biological activity of Salmo salar NK-lysin antimicrobial peptides. Front Immunol 2024; 15:1191966. [PMID: 38655253 PMCID: PMC11035819 DOI: 10.3389/fimmu.2024.1191966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 02/23/2024] [Indexed: 04/26/2024] Open
Abstract
NK-lysin is a potent antimicrobial peptide (AMP) with antimicrobial activity against bacteria, fungi, viruses, and parasites. NK-lysin is a type of granulysin, a member of the saposin-like proteins family first isolated from a pig's small intestine. In previous work, for the first time, we identified four variants of nk-lysin from Atlantic salmon (Salmo salar) using EST sequences. In the present study, we reported and characterized two additional transcripts of NK-lysin from S. salar. Besides, we evaluated the tissue distribution of three NK-lysins from S. salar and assessed the antimicrobial, hemolytic, and immunomodulatory activities and signaling pathways of three NK-lysin-derived peptides. The synthetic peptides displayed antimicrobial activity against Piscirickettsia salmonis (LF-89) and Flavobacterium psychrophilum. These peptides induced the expression of immune genes related to innate and adaptive immune responses in vitro and in vivo. The immunomodulatory activity of the peptides involves the mitogen-activated protein kinases-mediated signaling pathway, including p38, extracellular signal-regulated kinase 1/2, and/or c-Jun N-terminal kinases. Besides, the peptides modulated the immune response induced by pathogen-associated molecular patterns (PAMPs). Our findings show that NK-lysin could be a highly effective immunostimulant or vaccine adjuvant for use in fish aquaculture.
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Affiliation(s)
- Leonardo Ortega
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Crisleri Carrera
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Carolina Muñoz-Flores
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Santiago Salazar
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Milton F. Villegas
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - María F. Starck
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Ariel Valenzuela
- Laboratorio de Piscicultura y Patología Acuática, Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Niza Agurto
- Laboratorio de Piscicultura y Patología Acuática, Departamento de Oceanografía, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Raquel Montesino
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Allisson Astuya
- Laboratorio de Genómica Marina y Cultivo Celular, Departamento de Oceanografía y Centro de Investigación Oceanográfica en el Pacífico Sur Oriental (COPAS) Sur-Austral, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Natalie Parra
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Ercilia T. Pérez
- Laboratorio de Inmunología y Estrés de Organismos Acuáticos, Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
- Centro Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias (FONDAP), Interdisciplinary Center for Aquaculture Research (INCAR), Universidad de Concepción, Concepción, Chile
| | - Natacha Santibáñez
- Laboratorio de Inmunología y Estrés de Organismos Acuáticos, Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
- Centro Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias (FONDAP), Interdisciplinary Center for Aquaculture Research (INCAR), Universidad de Concepción, Concepción, Chile
| | - Alex Romero
- Laboratorio de Inmunología y Estrés de Organismos Acuáticos, Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
- Centro Fondo de Financiamiento de Centros de Investigación en Áreas Prioritarias (FONDAP), Interdisciplinary Center for Aquaculture Research (INCAR), Universidad de Concepción, Concepción, Chile
| | - Pamela Ruíz
- Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Talcahuano, Chile
| | - Emilio Lamazares
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Fátima Reyes
- Laboratorio de Biofármacos Recombinantes, Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Oliberto Sánchez
- Laboratorio de Biofármacos Recombinantes, Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Jorge R. Toledo
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Jannel Acosta
- Laboratorio de Biotecnología y Biofármacos, Departamento de Fisiopatología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
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Hao DF, Wang GH, Li NQ, Liu HM, Wang CB, Liu WQ, Yan X, Zhang M. Antimicrobial and immunoregulatory activities of the derived peptide of a natural killer lysin from black rockfish (Sebastes schlegelii). FISH & SHELLFISH IMMUNOLOGY 2022; 123:369-380. [PMID: 35318137 DOI: 10.1016/j.fsi.2022.03.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/26/2022] [Accepted: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Natural killer lysin (NK-lysin) is a small molecule antimicrobial peptide secreted by natural killer cells and T lymphocytes. In this study, we characterized a cDNA sequence encoding an NK-lysin homologue (SsNKL1) from black rockfish, Sebastes schlegelii. The open reading frame (ORF) of SsNKL1 encodes a putative protein of 149 amino acids and shares 44%-87% overall sequence identities with other teleost NK-lysins. SsNKL1 possesses conserved NK-lysin family features, including a signal sequence and a surfactant-associated protein B (SapB) domain, sequence analysis revealed that SsNKL1 is most closely related to false kelpfish (Sebastiscus marmoratus) NK-lysin (with 87% sequence identity). SsNKL1 transcripts were detected in all the tested tissues, with the highest level in the kidney, followed by the spleen and gills. Upon Listonella anguillarum infection, the mRNA expression of SsNKL1 in the black rockfish was significantly up-regulated in the liver and kidney. The derived peptide SsNKLP27 from SsNKL1 was synthesized, and its biological function was studied. SsNKLP27 showed direct antibacterial activity against Gram-negative and Gram-positive bacteria, including Staphylococcus aureus, Bacillus subtilis, L. anguillarum, Vibrio parahaemolyticus, Vibrio alginolyticus and Vibrio vulnificus. SsNKLP27 treatment facilitated the bactericidal process of erythromycin by enhancing the permeability of the outer membrane. In the process of interaction with the target bacterial cells, SsNKLP27 changed the permeability and retained the morphological integrity of the cell membrane, then penetrated into the cytoplasm, and induced the degradation of genomic DNA and total RNA. In vivo studies showed that administration of SsNKLP27 before bacterial and viral infection significantly reduced the transmission and replication of pathogens in tissues. In vitro analysis showed that SsNKLP27 could enhance the respiratory burst ability and regulate the expression of some immune-related genes of macrophages. In summary, these results provided new insights into the function of NK-lysins in teleost fish and support that SsNKLP27 is a new broad-spectrum antimicrobial peptide that has a potential application prospect in aquaculture against pathogenic infection.
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Affiliation(s)
- Dong-Fang Hao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China
| | - Guang-Hua Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China
| | - Ning-Qiu Li
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Key Laboratory of Aquatic Animal Immune Technology, Guangdong Province, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510380, PR China
| | - Hong-Mei Liu
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China
| | - Chang-Biao Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China
| | - Wen-Qing Liu
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China
| | - Xue Yan
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China
| | - Min Zhang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province, 266109, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong Province, 266109, China.
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3
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Wang T, Tian L, Cheng Q, Feng S, Zhang H, Zheng Z, Liu Y, Cheng M, Meng Z, Meng Q. Pep5-based antitumor peptides containing multifunctional fragments with enhanced activity and synergistic effect. Eur J Med Chem 2022; 237:114320. [DOI: 10.1016/j.ejmech.2022.114320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/14/2022] [Accepted: 03/23/2022] [Indexed: 12/27/2022]
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4
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Buri MV, Sperandio LP, de Souza KFS, Antunes F, Rezende MM, Melo CM, Pinhal MAS, Barros CC, Fernig DG, Yates EA, Ide JS, Smaili SS, Riske KA, Nader HB, Luis Dos Santos Tersariol I, Lima MA, Judice WAS, Miranda A, Paredes-Gamero EJ. Endocytosis and the Participation of Glycosaminoglycans Are Important to the Mechanism of Cell Death Induced by β-Hairpin Antimicrobial Peptides. ACS APPLIED BIO MATERIALS 2021; 4:6488-6501. [PMID: 35006908 DOI: 10.1021/acsabm.1c00390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The cytotoxic mode of action of four antimicrobial peptides (AMPs) (gomesin, tachyplesin, protegrin, and polyphemusin) against a HeLa cell tumor model is discussed. A study of cell death by AMP stimulation revealed some similarities, including annexin-V externalization, reduction of mitochondrial potential, insensitivity against inhibitors of cell death, and membrane permeabilization. Evaluation of signaling proteins and gene expression that control cell death revealed wide variation in the responses to AMPs. However, the ability to cross cell membranes emerged as an important characteristic of AMP-dependent cell death, where endocytosis mediated by dynamin is a common mechanism. Furthermore, the affinity between AMPs and glycosaminoglycans (GAGs) and GAG participation in the cytotoxicity of AMPs were verified. The results show that, despite their primary and secondary structure homology, these peptides present different modes of action, but endocytosis and GAG participation are an important and common mechanism of cytotoxicity for β-hairpin peptides.
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Affiliation(s)
- Marcus Vinicius Buri
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Letícia Paulino Sperandio
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil.,Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Kamylla F S de Souza
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Fernanda Antunes
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Marina Mastelaro Rezende
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Carina Mucciolo Melo
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Maria A S Pinhal
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Departmento de Bioquímica, Faculdade de Medicina Do ABC, Santo André 09060-870, Brazil
| | - Carlos C Barros
- Departamento de Nutrição, Universidade Federal de Pelotas, R. Gomes Carneiro, No1, Pelotas 96010-610, Rio Grande do Sul, Brazil
| | - David G Fernig
- Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Edwin A Yates
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Department of Biochemistry and Systems Biology, ISMIB, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Jaime S Ide
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut 06519, United States
| | - Soraya S Smaili
- Departamento de Farmacologia, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Karin A Riske
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Helena B Nader
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | | | - Marcelo Andrade Lima
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Wagner A S Judice
- Centro Interdisciplinar de Investigação Bioquímica, Universidade de Mogi Das Cruzes, Av. Dr. Cândido Xavier de Almeida Souza, 200, Mogi Das Cruzes 08780-911, São Paulo, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil
| | - Edgar J Paredes-Gamero
- Departamento de Bioquímica, Universidade Federal de São Paulo, R. Três de Maio 100, São Paulo 04044-020, São Paulo, Brazil.,Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso Do Sul, Campo Grande 79070-900, Mato Grosso do Sul, Brazil
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Lin Q, Fu Q, Chen D, Yu B, Luo Y, Huang Z, Zheng P, Mao X, Yu J, Luo J, Yan H, He J. Functional Characterization of Porcine NK-Lysin: A Novel Immunomodulator That Regulates Intestinal Inflammatory Response. Molecules 2021; 26:molecules26144242. [PMID: 34299517 PMCID: PMC8307250 DOI: 10.3390/molecules26144242] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/01/2021] [Accepted: 07/09/2021] [Indexed: 11/16/2022] Open
Abstract
Porcine NK-Lysine (PNKL) is a new antimicrobial peptide (AMP) identified in the small intestine. In this study, PNKL protein was obtained through heterologous expression in Escherichia coli and was estimated by SDS-PAGE at 33 kDa. The antibacterial activities of PNKL were determined using various bacterial strains and showed broad-spectrum antimicrobial activity against Gram-negative and Gram-positive bacteria. Furthermore, E. coli K88-challenged IPEC-J2 cells were used to determine PNKL influences on inflammatory responses. Hemolytic assays showed that PNKL had no detrimental impact on cell viability. Interestingly, PNKL elevated the viability of IPEC-J2 cells exposure to E. coli K88. PNKL significantly decreased the cell apoptosis rate, and improved the distribution and abundance of tight junction protein ZO-1 in IPEC-J2 cells upon E. coli K88-challenge. Importantly, PNKL not only down regulated the expressions of inflammatory cytokines such as the IL-6 and TNF-α, but also down regulated the expressions of NF-κB, Caspase3, and Caspase9 in the E. coli K88-challenged cells. These results suggest a novel function of natural killer (NK)-lysin, and the anti-bacterial and anti-inflammatory properties of PNKL may allow it a potential substitute for conventionally used antibiotics or drugs.
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Affiliation(s)
- Qian Lin
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Qingqing Fu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Hui Yan
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China; (Q.L.); (Q.F.); (D.C.); (B.Y.); (Y.L.); (Z.H.); (P.Z.); (X.M.); (J.Y.); (J.L.); (H.Y.)
- Key Laboratory of Animal Disease-Resistant Nutrition, Chengdu 611130, China
- Correspondence: ; Tel.: +86-28-8629-1781; Fax: +86-28-8629-0922
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Liang X, Yan J, Lu Y, Liu S, Chai X. The Antimicrobial Peptide Melectin Shows Both Antimicrobial and Antitumor Activity via Membrane Interference and DNA Binding. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:1261-1273. [PMID: 33776423 PMCID: PMC7989573 DOI: 10.2147/dddt.s288219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 02/05/2021] [Indexed: 12/17/2022]
Abstract
Purpose Increasingly complex diseases require novel drugs for their treatment. Antimicrobial peptides (AMPs) are promising candidate treatments due to their broad existence and special characteristics. However, the current understanding of AMPs is not sufficient to allow them to be produced commercially for clinical use. Materials and Methods Melectin, from the venom of the cleptoparasitic bee Melecta albifrons, does not exhibit sequence homology with other wasp venom peptides. To investigate this more deeply, we explored the antibacterial and antitumor activities of Melectin and related mechanisms. Results Our results demonstrate that Melectin possesses antimicrobial properties against standard sensitive/clinical drug-resistant bacteria strains as well as antitumor activity. It has an α-helix form and exhibits moderate cytotoxicity. Its action mechanisms are involved with membrane interfering and DNA binding. The membrane interfering effect was distinct between different phospholipid compositions. Conclusion We found that Melectin may serve as a new potential template in the battle against multidrug resistance, and our study indicated that there are promising prospects for medically applicable drugs based on AMPs.
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Affiliation(s)
- Xiaolei Liang
- Key Laboratory for Gynecologic Oncology Gansu Province, Department of Obstetrics and Gynecology, The First Hospital of Lanzhou University, Lanzhou, People's Republic of China
| | - Jiexi Yan
- The Precision Medicine Laboratory, The First Hospital of Lanzhou University, Lanzhou, People's Republic of China
| | - Yingwei Lu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou, People's Republic of China
| | - Shan Liu
- The First Clinical Medicine School, Lanzhou University, Lanzhou, People's Republic of China
| | - Xiaojing Chai
- The Key Laboratory, The First Hospital of Lanzhou University, Lanzhou, People's Republic of China
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7
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Thankappan B, Sivakumar J, Asokan S, Ramasamy M, Pillai MM, Selvakumar R, Angayarkanni J. Dual antimicrobial and anticancer activity of a novel synthetic α-helical antimicrobial peptide. Eur J Pharm Sci 2021; 161:105784. [PMID: 33677023 DOI: 10.1016/j.ejps.2021.105784] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/05/2021] [Accepted: 02/25/2021] [Indexed: 12/01/2022]
Abstract
Antimicrobial peptides (AMPs) are increasingly sought-after and researched antimicrobial agents due to its desired pharmacological properties and the continuous diminishing efficacy of antibiotics. In addition to this line of research, the aim of the present study is to determine the antimicrobial and anticancer activity of a de novo designed α-helical peptide. Circular dichroism showed 100% helical nature of the peptide in 10 mM SDS. Notably, the peptide exerted significant antimicrobial activity against the reference and antibiotic-resistant clinical isolates belonging to Pseudomonas sp. at a MIC and MBC of 2 and 8 μM, respectively. The progressive disruption and disturbance of cell membrane in the overall topography was observed in the scanning electron microscopy (SEM) micrographs of Pseudomonas aeruginosa ATCC 27853 treated with the peptide as compared to untreated control. The results of time-kill kinetics showed complete lysis at 3x MIC after 50 min of incubation of the microbe with the peptide. Moreover, the peptide did not lyse human RBCs even at the highest concentration of the peptide (10 mM) and retained its activity upon treatment at 0.5 mg/ml trypsin. Cancer cell lines, viz. A549 and MCF-7 were also found to be sensitive to peptide activity showing 50% reduction in survivability at 4 and 2 μM, respectively; however, L929 cells were unaffected. Drastic membrane permeability and necrotic mode of lysis of peptide-treated-A549 cells were affirmed by propidium iodide and live/dead cell staining. The results showed that the designed peptide could be an efficient drug molecule for clinical studies subjected to successful experiments on animal models.
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Affiliation(s)
- Bency Thankappan
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India.
| | - Jeyarajan Sivakumar
- Department of Pathology, University of Michigan, Annabor, 48108, United States
| | - Sridhar Asokan
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Mahendran Ramasamy
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Mamatha M Pillai
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, 641 004, Tamil Nadu, India
| | - R Selvakumar
- Tissue Engineering Laboratory, PSG Institute of Advanced Studies, Coimbatore, 641 004, Tamil Nadu, India
| | - Jayaraman Angayarkanni
- Department of Microbial Biotechnology, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
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8
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Hou H, Wang J, Wang J, Tang W, Shaikh AS, Li Y, Fu J, Lu L, Wang F, Sun F, Tan H. A Review of Bioactive Peptides: Chemical Modification, Structural Characterization and Therapeutic Applications. J Biomed Nanotechnol 2021; 16:1687-1718. [PMID: 33485398 DOI: 10.1166/jbn.2020.3001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In recent years, the development and applications of protein drugs have attracted extensive attention from researchers. However, the shortcomings of protein drugs also limit their further development. Therefore, bioactive peptides isolated or simulated from protein polymers have broad application prospects in food, medicine, biotechnology, and other industries. Such peptides have a molecular weight distribution between 180 and 1000 Da. As a small molecule substance, bioactive peptide is usually degraded by various enzymes in the organism and have a short half-life. At the same time, such substances have poor stability and are difficult to produce and store. Therefore, these active peptides may be modified through phosphorylation, glycosylation, and acylation. Compared with other protein drugs, the modified active peptides are more easily absorbed by the body, have longer half-life, stronger targeting, and fewer side effects in addition to higher bioavailability. In the light of their functions, bioactive peptide can be divided into antimicrobial, anti-tumour, anti-angiogenic, antioxidant, anti-fatigue, and anti-hypertensive peptides. This article mainly focuses on the introduction of several promising biologically active peptides functioning as antimicrobial, anti-tumour, antiangiogenic, and antioxidant peptides from the three aspects modification, structural characteristics and mechanism of action.
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9
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Liu B, Liu GD, Guo HY, Zhu KC, Guo L, Liu BS, Zhang N, Jiang SG, Zhang DC. Functional characterization of NK-lysin in golden pompano Trachinotus ovatus (Linnaeus 1758). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2020; 107:103658. [PMID: 32087193 DOI: 10.1016/j.dci.2020.103658] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
NK-lysin is an important part of the innate immune defence system and plays an important role in resisting the invasion of pathogenic microorganisms. In this study, NK-lysin from golden pompano (Trachinotus ovatus) was characterized and its expression in response to Photobacterium damselae was investigated. The full-length NK-lysin cDNA was 731 bp, which comprised a 5'-UTR of 63 bp, an ORF of 444 bp, and a 3'-UTR of 224 bp, and encoded 147 amino acids; NK-lysin consisted of a conserved saposin B domain and six conserved cysteines that formed three pairs of disulfide bonds. The genomic organization of NK-lysin was also determined and the gene consisted of four introns and five exons. The predicted promoter region of ToNK-lysin contained several putative transcription factor binding sites. Quantitative real-time (qRT-PCR) analysis indicated that ToNK-lysin was ubiquitously expressed in all examined tissues; the highest mRNA levels were observed in the skin, kidney and intestine, while the lowest expression level was detected in the stomach. After P. damselae stimulation, the expression level of NK-lysin mRNA was significantly upregulated in various tissues of golden pompano. In addition, SDS-PAGE showed that the molecular mass of recombinant NK-lysin expressed in pGEX-6P-1 was approximately 37 kDa. The purified recombinant protein showed antibacterial activity against gram-positive and gram-negative bacteria. The results indicate that golden pompano NK-lysin has potential antimicrobial roles in fish innate immunity.
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Affiliation(s)
- Bo Liu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China
| | - Guang-Dong Liu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China
| | - Hua-Yang Guo
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China
| | - Ke-Cheng Zhu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China
| | - Liang Guo
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China
| | - Bao-Suo Liu
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China
| | - Nan Zhang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China
| | - Shi-Gui Jiang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, Guangdong Province, China
| | - Dian-Chang Zhang
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of South China Sea Fishery Resources Exploitation and Utilization, Ministry of Agriculture and Rural Affairs, 510300, Guangzhou, Guangdong Province, China; Guangdong Provincial Engineer Technology Research Center of Marine Biological Seed Industry, Guangzhou, Guangdong Province, China; Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou, Guangdong Province, China.
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10
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Su YL, Wang GH, Wang JJ, Xie B, Gu QQ, Hao DF, Liu HM, Zhang M. TC26, a teleost TFPI-1 derived antibacterial peptide that induces degradation of bacterial nucleic acids and inhibits bacterial infection in vivo. FISH & SHELLFISH IMMUNOLOGY 2020; 98:508-514. [PMID: 32004613 DOI: 10.1016/j.fsi.2020.01.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
At present, several reports have indicated that the C-terminal peptides of tissue factor pathway inhibitor 1 (TFPI-1) were active antibacterial peptides. However, the functions of TFPI-1 C-terminal peptides in teleost are still very limited. In this study, a C-terminal peptide, TC26 (with 26 amino acids), derived from common carp (Cyprinus carpio) TFPI-1, was synthesized and investigated for its antibacterial spectrum, action mechanism, as well as the in vivo effects on bacterial invasion. Our results showed that TC26 was active against Gram-positive bacteria Micrococcus luteus and Staphylococcus aureus, as well as Gram-negative bacterium Vibrio vulnificus. TC26 treatment facilitated the bactericidal process of erythromycin by enhancing the out-membrane permeability of V. vulnificus. During the bactericidal process, TC26 killed the target bacterial cells Vibrio vulnificus, by destroying cell membrane integrity, penetrating into the cytoplasm and inducing degradation of genomic DNA and total RNA. In vivo study showed that administration of turbot with TC26 before bacterial infection significantly reduced pathogen dissemination and replication in tissues. These results indicated that TC26 is a novel and active antibacterial peptide and may play a vital role in fighting pathogenic infection in aquaculture.
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Affiliation(s)
- Yan-Li Su
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Guang-Hua Wang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jing-Jing Wang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Bing Xie
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Qin-Qin Gu
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Dong-Fang Hao
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Hong-Mei Liu
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Min Zhang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China; Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, Qingdao, China.
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11
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León R, Ruiz M, Valero Y, Cárdenas C, Guzman F, Vila M, Cuesta A. Exploring small cationic peptides of different origin as potential antimicrobial agents in aquaculture. FISH & SHELLFISH IMMUNOLOGY 2020; 98:720-727. [PMID: 31730928 DOI: 10.1016/j.fsi.2019.11.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 06/10/2023]
Abstract
Antimicrobial peptides (AMPs) form part of the innate immune response, which is of vital importance in fish, especially in eggs and early larval stages. Compared to antibiotics, AMPs show action against a wider spectrum of pathogens, including viruses, fungi and parasites, are more friendly to the environment, and do not seem to generate resistance in bacteria. Thus, we have tested in vitro the potential use of several synthetic peptides as antimicrobial agents in aquaculture: frog Caerin1.1, European sea bass Dicentracin (Dic) and NK-lysin peptides (NKLPs) and sole NKLP27. Our results demonstrate that the highest bactericidal activity against both human and fish pathogens was obtained with Caerin1.1 followed by sea bass Dic and NKLPs, having the sea bass NKLP20.2 none to negligible activity. Interestingly, Aeromonas salmonicida was refractory to all the fish peptides tested. Regarding the antiviral activity, synthetic peptides were able to inhibit the viral infection of nodavirus (NNV), viral septicaemia haemorrhagic virus (VHSV), infectious pancreatic necrosis virus (IPNV) and spring viremia carp virus (SVCV), which are some of the most devastating virus for aquaculture. However, their effectiveness was highly dependent on the type of virus. Strikingly, IPNV resulted the most resistant virus since Caeerin1.1 and sea bass NKLP20.2 were unable to reduce its titre and the other peptides tested only reduced it to values in the 43-78% range. These data demonstrate that synthetic peptides have great antibacterial and antiviral in vitro activity against important fish pathogens and point to their use as potential therapeutic agents in aquaculture.
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Affiliation(s)
- Rosa León
- Laboratorio de Bioquímica, Facultad de Ciencias Experimentales, Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Huelva, 2110, Huelva, Spain
| | - María Ruiz
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain
| | - Yulema Valero
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain; Grupo de Marcadores Inmunológicos, Laboratorio de Genética e Inmunología Molecular, Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Constanza Cárdenas
- Núcleo Biotecnológico de Curauma (NBC), Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Fanny Guzman
- Núcleo Biotecnológico de Curauma (NBC), Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Marta Vila
- Laboratorio de Bioquímica, Facultad de Ciencias Experimentales, Campus de Excelencia Internacional del Mar (CEIMAR), Universidad de Huelva, 2110, Huelva, Spain
| | - Alberto Cuesta
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100, Murcia, Spain.
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12
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Khan A, Fan K, Sun N, Yin W, Sun Y, Sun P, Jahejo AR, Li H. Recombinant porcine NK-lysin inhibits the invasion of hepatocellular carcinoma cells in vitro. Int J Biol Macromol 2019; 140:1249-1259. [PMID: 31465800 DOI: 10.1016/j.ijbiomac.2019.08.212] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 08/23/2019] [Accepted: 08/24/2019] [Indexed: 02/07/2023]
Abstract
The therapeutics having ability to target cancer cells specifically and exhibit nominal cytopathic effect on normal healthy cells are highly significant for cancer therapeutic applications. Recombinant porcine natural killer lysin (rpNK-lysin) has proven cationic anti-bacterial and anti-tumor peptide. Herein, we report its anti-invasion and anti-metastasis effects on hepatocellular carcinoma (HCC) cells in vitro. We first investigate the maximum non-toxic concentration (MNTC) of rpNK-lysin for the normal hepato cells (L-02). Using MNTC rpNK-lysin, we explore anti-proliferative, anti-adhesive, anti-invasive and anti-metastatic effect of rpNK-lysin on three different HCC cells lines (SMMC-7721, 97-H and HepG2) through MTT, wound-healing, adhesion and invasion assay along with mRNA and protein expression. The results reveal that rpNK-lysin has potential to specifically inhibit HCC cells growth in a dose and time-dependent manner with a little cytopathic effect on the L-02 cells, effectively reduce migration, adhesion and invasion ability of HCC cells. rpNK-lysin significantly reduce Fascin1 expression, which subsequently decrease β-catenin expression and metaloproteinases (MMP-2 and MMP9). This study suggest that MNTC rpNK-lysin has an anti-invasion and anti-metastasis effect on HCC cells in vitro through inhibition of Fascin 1 expression which regulates Wnt/β-catenin signaling pathway by inducing β-catenin degradation and subsequently results in suppression of MMP-2 and MMP9 expression.
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Affiliation(s)
- Ajab Khan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Kuohai Fan
- Laboratory Animal Center, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Na Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Wei Yin
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Yaogui Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Panpan Sun
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Ali Raza Jahejo
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China
| | - Hongquan Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, PR China.
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13
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Acosta J, Roa F, González-Chavarría I, Astuya A, Maura R, Montesino R, Muñoz C, Camacho F, Saavedra P, Valenzuela A, Sánchez O, Toledo JR. In vitro immunomodulatory activities of peptides derived from Salmo salar NK-lysin and cathelicidin in fish cells. FISH & SHELLFISH IMMUNOLOGY 2019; 88:587-594. [PMID: 30885741 DOI: 10.1016/j.fsi.2019.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 03/11/2019] [Accepted: 03/14/2019] [Indexed: 06/09/2023]
Abstract
Antimicrobial peptides (AMPs) are amphipathic peptides, which play an important role in innate defence. These peptides are gene-encoded and either constitutively expressed and/or upregulated during an infection. NK-lysins are AMPs with a three-dimensional globular structure. They are larger molecules, which comprise 74-78 amino acid residues and six conserved cysteine residues forming three disulphide bonds. Cathelicidins are a family of antimicrobial peptides that act as important components of the innate immune system with a broad spectrum of antimicrobial activity and immunomodulatory properties. Although they are widely studied in mammals, little is known about their immunomodulatory function. In the present study, we identified and characterized for the first time four NK-lysin-like transcripts from Atlantic salmon (Salmo salar) based on EST reported sequences. In vitro, NK-lysin derived peptides were able to induce the expression of IL-1β and IL-8 in Salmo salar head kidney leukocytes. We also tested Salmo salar cathelicidin 1 derived peptide in a similar assay, showing its ability to induce the expression of IFN-γ. These results indicate that NK-lysin and cathelicidin 1 derived peptides are able to modulated immune response, suggesting their potential use to enhance immune response in fish.
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Affiliation(s)
- Jannel Acosta
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile.
| | - Francisco Roa
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Iván González-Chavarría
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Allison Astuya
- Laboratory of Cell Culture and Marine Genomics, Department of Oceanography and COPAS Sur-Austral, Faculty of Natural and Oceanographic Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Rafael Maura
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Raquel Montesino
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Carolina Muñoz
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Frank Camacho
- Recombinant Biopharmaceuticals Laboratory, Pharmacology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Paulina Saavedra
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Ariel Valenzuela
- Laboratory of Fish Culture and Aquatic Pathology, Department of Oceanography, Faculty of Natural and Oceanographic Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Oliberto Sánchez
- Recombinant Biopharmaceuticals Laboratory, Pharmacology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
| | - Jorge R Toledo
- Biotechnology and Biopharmaceutical Laboratory, Pathophysiology Department, School of Biological Sciences, Universidad de Concepción, Victor Lamas 1290, P.O. Box 160-C, Concepción, Chile
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14
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Falco A, Medina-Gali RM, Poveda JA, Bello-Perez M, Novoa B, Encinar JA. Antiviral Activity of a Turbot ( Scophthalmus maximus) NK-Lysin Peptide by Inhibition of Low-pH Virus-Induced Membrane Fusion. Mar Drugs 2019; 17:md17020087. [PMID: 30717094 PMCID: PMC6410327 DOI: 10.3390/md17020087] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/10/2019] [Accepted: 01/23/2019] [Indexed: 12/20/2022] Open
Abstract
Global health is under attack by increasingly-frequent pandemics of viral origin. Antimicrobial peptides are a valuable tool to combat pathogenic microorganisms. Previous studies from our group have shown that the membrane-lytic region of turbot (Scophthalmus maximus) NK-lysine short peptide (Nkl71–100) exerts an anti-protozoal activity, probably due to membrane rupture. In addition, NK-lysine protein is highly expressed in zebrafish in response to viral infections. In this work several biophysical methods, such as vesicle aggregation, leakage and fluorescence anisotropy, are employed to investigate the interaction of Nkl71–100 with different glycerophospholipid vesicles. At acidic pH, Nkl71–100 preferably interacts with phosphatidylserine (PS), disrupts PS membranes, and allows the content leakage from vesicles. Furthermore, Nkl71–100 exerts strong antiviral activity against spring viremia of carp virus (SVCV) by inhibiting not only the binding of viral particles to host cells, but also the fusion of virus and cell membranes, which requires a low pH context. Such antiviral activity seems to be related to the important role that PS plays in these steps of the replication cycle of SVCV, a feature that is shared by other families of virus-comprising members with health and veterinary relevance. Consequently, Nkl71–100 is shown as a promising broad-spectrum antiviral candidate.
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Affiliation(s)
- Alberto Falco
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Miguel Hernández University (UMH); 03202 Elche Alicante, Spain.
| | - Regla María Medina-Gali
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Miguel Hernández University (UMH); 03202 Elche Alicante, Spain.
| | - José Antonio Poveda
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Miguel Hernández University (UMH); 03202 Elche Alicante, Spain.
| | - Melissa Bello-Perez
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Miguel Hernández University (UMH); 03202 Elche Alicante, Spain.
| | - Beatriz Novoa
- Instituto de Investigaciones Marinas (IIM), Consejo Superior de Investigaciones Científicas (CSIC), 36208 Vigo, Spain.
| | - José Antonio Encinar
- Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE) and Instituto de Biología Molecular y Celular (IBMC), Miguel Hernández University (UMH); 03202 Elche Alicante, Spain.
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15
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Jia F, Zhang Y, Wang J, Peng J, Zhao P, Zhang L, Yao H, Ni J, Wang K. The effect of halogenation on the antimicrobial activity, antibiofilm activity, cytotoxicity and proteolytic stability of the antimicrobial peptide Jelleine-I. Peptides 2019; 112:56-66. [PMID: 30500360 DOI: 10.1016/j.peptides.2018.11.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/25/2018] [Accepted: 11/26/2018] [Indexed: 12/11/2022]
Abstract
Antimicrobial peptides (AMPs) are believed to be a promising class of antimicrobial agents against bacteria and fungi. To promote the clinical use of AMPs, their antimicrobial activity and susceptibility to protease degradation should be further improved. The antimicrobial peptide Jelleine-I was originally isolated from the royal jelly of honeybees (Apis mellifera) with a short sequence of PFKLSLHL-NH2 (953.24 Da). Here, a series of halogenated derivatives of the antimicrobial peptide Jelleine-I were designed and synthesized. The results showed that the in vitro antimicrobial activity, antibiofilm activity and in vivo antimicrobial efficacy were enhanced 1-8-fold after halogenation. Additionally, the proteolytic stability of Jelleine-I was improved 10-100-fold by halogenation. Meanwhile, the halogenated derivatives retained negligible hemolytic activity and cytotoxicity. Among these derivatives, the antimicrobial activity and antibiofilm activity of chlorine-Jelleine-I (Cl-J-I), bromine-Jelleine-I (Br-J-I), and iodine-Jelleine-I (I-J-I) were better than those of fluorine-Jelleine-I (F-J-I). The stabilities of Br-J-I and I-J-I against the degradation of enzymes and the serum were better than those of F-J-I and Cl-J-I. In conclusion, this study may offer a useful strategy to enhance antimicrobial efficacy and proteolytic stability by halogenation. The halogenated derivatives Cl-J-I, Br-J-I and I-J-I may be considered as potential antimicrobial agents against microbial infection.
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Affiliation(s)
- Fengjing Jia
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Yi Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Jiayi Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Jinxiu Peng
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Ping Zhao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Lishi Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Haiyan Yao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | - Jingman Ni
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China.
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China.
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16
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Influence of Proline Substitution on the Bioactivity of Mammalian-Derived Antimicrobial Peptide NK-2. Probiotics Antimicrob Proteins 2018; 10:118-127. [PMID: 29043494 DOI: 10.1007/s12602-017-9335-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Multidrug-resistant bacteria are emerging as a global threat, making the search for alternative compounds urgent. Antimicrobial peptides (AMPs) became a promising hotspot due to their distinct action mechanism and possibility to be used as an alternative or complement to traditional antibiotics. However, gaining a better understanding about the relationship between antimicrobial peptides structure and its bioactivity is crucial for the development of next generation of antimicrobial agents. NK-2, derived from mammalian protein NK-lysin, has potent antitumor and bactericidal abilities. As proline was considered to be an effective α-helix breaker due to its restricted conformation, to better comprehend the effects of proline in the structure-activity relationship of NK-2, we constructed two NK-2 analogs. We examined the biological activities of NK-2 and its proline substitution analogs and analyzed the resulting conformational changes. Our results showed that introducing proline into the primary sequence of NK-2 significantly decreased the antitumor, antibacterial, and cytotoxic effects, as well as DNA binding activity by changing the α-helix content. However, α-helical content was not the only determining factor, the position of proline inserted was also critical. This study will allow for clearer insight into the role of proline in structure and bioactivity of NK-2 and provide a foundation for future studies.
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Lama R, Pereiro P, Costa MM, Encinar JA, Medina-Gali RM, Pérez L, Lamas J, Leiro J, Figueras A, Novoa B. Turbot (Scophthalmus maximus) Nk-lysin induces protection against the pathogenic parasite Philasterides dicentrarchi via membrane disruption. FISH & SHELLFISH IMMUNOLOGY 2018; 82:190-199. [PMID: 30086378 DOI: 10.1016/j.fsi.2018.08.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 07/23/2018] [Accepted: 08/03/2018] [Indexed: 06/08/2023]
Abstract
P. dicentrarchi is one of the most threatening pathogens for turbot aquaculture. This protozoan ciliate is a causative agent of scuticociliatosis, which is a disease with important economic consequences for the sector. Neither vaccines nor therapeutic treatments are commercially available to combat this infection. Numerous antimicrobial peptides (AMPs) have demonstrated broad-spectrum activity against bacteria, viruses, fungi, parasites and even tumor cells; an example is Nk-lysin (Nkl), which is an AMP belonging to the saposin-like protein (SAPLIP) family with an ability to interact with biological membranes. Following the recent characterization of turbot Nkl, an expression plasmid encoding Nkl was constructed and an anti-Nkl polyclonal antibody was successfully tested. Using these tools, we demonstrated that although infection did not clearly affect nkl mRNA expression, it induced changes at the protein level. Turbot Nkl had the ability to inhibit proliferation of the P. dicentrarchi parasite both in vivo and in vitro. Moreover, a shortened peptide containing the active core of turbot Nkl (Nkl71-100) was synthesized and showed high antiparasitic activity with a direct effect on parasite viability that probably occurred via membrane disruption. Therefore, the nkl gene may be a good candidate for genetic breeding selection of fish, and either the encoded peptide or its shortened analog is a promising antiparasitic treatment in aquaculture.
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Affiliation(s)
- R Lama
- Instituto de Investigaciones Marinas (IIM), Consejo Superior de Investigaciones Científicas (CSIC), Vigo, Spain
| | - P Pereiro
- Instituto de Investigaciones Marinas (IIM), Consejo Superior de Investigaciones Científicas (CSIC), Vigo, Spain
| | - M M Costa
- Instituto de Investigaciones Marinas (IIM), Consejo Superior de Investigaciones Científicas (CSIC), Vigo, Spain
| | - J A Encinar
- Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández, Elche, Spain
| | - R M Medina-Gali
- Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández, Elche, Spain
| | - L Pérez
- Instituto de Biología Molecular y Celular (IBMC), Universidad Miguel Hernández, Elche, Spain
| | - J Lamas
- Departamento de Biología Funcional e Instituto de Acuicultura, Universidad de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - J Leiro
- Departamento de Microbiología y Parasitología, Instituto de Investigación y Análisis Alimentarios, Universidad de Santiago de Compostela (USC), Santiago de Compostela, Spain
| | - A Figueras
- Instituto de Investigaciones Marinas (IIM), Consejo Superior de Investigaciones Científicas (CSIC), Vigo, Spain
| | - B Novoa
- Instituto de Investigaciones Marinas (IIM), Consejo Superior de Investigaciones Científicas (CSIC), Vigo, Spain.
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Liang X, Wang R, Dou W, Zhao L, Zhou L, Zhu J, Wang K, Yan J. Arminin 1a-C, a novel antimicrobial peptide from ancient metazoan Hydra, shows potent antileukemia activity against drug-sensitive and drug-resistant leukemia cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:3691-3703. [PMID: 30464401 PMCID: PMC6217004 DOI: 10.2147/dddt.s181188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Purpose Due to the emergence of multidrug resistance (MDR), traditional antileukemia drugs no longer meet the treatment needs. Therefore, new antileukemia drugs with different action mechanisms are urgently needed to cope with this situation. Materials and methods Arminin 1a-C is an antimicrobial peptide (AMP) developed from the ancient metazoan marine Hydra. In this study, we first explored its antileukemia activity. Results Our results showed that Arminin 1a-C formed an α-helical structure and efficaciously suppressed the viability of leukemia cell lines whether or not they were multidrug resistant or sensitive, and there were no obvious differences between these cell lines. Arminin 1a-C exhibited distinct selectivity between noncancerous and cancerous cell lines. Arminin 1a-C interfered with K562/adriamycin (ADM) cell (a kind of multidrug-resistant leukemia cell line) proliferation in a very rapid manner and formed pores in its cell membrane, making it difficult to develop resistance against Arminin 1a-C. Conclusion Our data show that Arminin 1a-C possesses great potential as a therapeutic candidate for the treatment of multidrug-resistant leukemia.
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Affiliation(s)
- Xiaolei Liang
- The Reproductive Medicine Special Hospital of the First Hospital of Lanzhou University, Key Laboratory for Reproductive Medicine and Embryo, Lanzhou, China
| | - Ruirui Wang
- The First Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Wenshan Dou
- The Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Li Zhao
- The Key Laboratory, The First Hospital of Lanzhou University, Lanzhou, China,
| | - Lanxia Zhou
- The Key Laboratory, The First Hospital of Lanzhou University, Lanzhou, China,
| | - Junfang Zhu
- The Key Laboratory, The First Hospital of Lanzhou University, Lanzhou, China,
| | - Kairong Wang
- School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, Lanzhou University, Lanzhou, China
| | - Jiexi Yan
- The Key Laboratory, The First Hospital of Lanzhou University, Lanzhou, China,
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NK-18, a promising antimicrobial peptide: anti-multidrug resistant leukemia cells and LPS neutralizing properties. Biochimie 2018; 147:143-152. [PMID: 29427740 DOI: 10.1016/j.biochi.2018.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 02/05/2018] [Indexed: 12/24/2022]
Abstract
With the increase of multidrug resistance, novel anti-leukemia agents with diverse mechanisms of action are required to address this challenge. NK-18, the core region of mammalian derived protein NK-lysin, effectively inhibited the viability of both multidrug resistant and sensitive leukemia cell lines. Meanwhile, this proliferation inhibition effect was not distinct between sensitive and multidrug resistant leukemia cell line. NK-18 showed selectivity between non-tumorigenic and tumorigenic cells. It preferentially bound to tumor cells whose outer leaflet with high phosphatidylserine content. NK-18 acted on the multidrug resistant leukemia cell line by a rapid pore formation on the cell membrane, it is not easy for K562/ADM cells developing resistance against NK-18. Furthermore, NK-18 could neutralize lipopolysaccharides by electrostatic attraction and reduce NO production. These research data demonstrated NK-18 possesses great advantage in the multidrug resistant leukemia treatment compared with conventional chemotherapies and it could be a potential candidate for further research.
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20
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Wan L, Zhang D, Zhang J, Ren L. TT-1, an analog of melittin, triggers apoptosis in human thyroid cancer TT cells via regulating caspase, Bcl-2 and Bax. Oncol Lett 2018; 15:1271-1278. [PMID: 29387245 DOI: 10.3892/ol.2017.7366] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 06/22/2017] [Indexed: 01/25/2023] Open
Abstract
Melittin is a 26 amino acid residue antimicrobial peptide with known antitumor activity. In the present study, a novel peptide TT-1, derived from melittin and contained only 11 amino acids, was designed, and its antitumor effect was investigated. The present study is aimed to elucidate the effects and relative mechanisms of TT-1 on a human thyroid cancer cell line (TT) in vitro and in vivo. Cell viability assays, Annexin V/propidium iodide assays, western blotting and quantitative reverse transcription polymerase chain reaction were performed. Furthermore, a tumor-xenograft model was established to investigate the apoptotic mechanisms of TT-1 on TT cells. The results obtained indicated that TT-1 was able to suppress the proliferation of TT cells and exhibited low cytotoxicity to normal thyroid cells in vitro. The apoptotic rates of TT cells were also increased following TT-1 treatment. Additionally, TT-1 stimulated caspase-3, caspase-9 and Bax, and inhibited B-cell lymphoma 2 mRNA and protein expression. Finally, it was also demonstrated that TT-1 is able to markedly suppress tumor growth in a TT-bearing nude mouse model. In summary, TT-1 may inhibit the proliferation of TT cells by inducing apoptosis in vitro and in vivo, indicating that TT-1 may be a potential candidate for the treatment of thyroid cancer.
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Affiliation(s)
- Lanlan Wan
- Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, Jilin 130033, P.R. China.,Department of Pharmacology and Toxicology, Jilin University School of Pharmaceutical Sciences, Changchun, Jilin 130021, P.R. China
| | - Daqi Zhang
- Department of Thyroid Surgery, China-Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Surgical Translational Medicine, Changchun, Jilin 130033, P.R. China
| | - Jinnan Zhang
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
| | - Liqun Ren
- Department of Pharmacology and Toxicology, Jilin University School of Pharmaceutical Sciences, Changchun, Jilin 130021, P.R. China
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He SW, Zhang J, Li NQ, Zhou S, Yue B, Zhang M. A TFPI-1 peptide that induces degradation of bacterial nucleic acids, and inhibits bacterial and viral infection in half-smooth tongue sole, Cynoglossus semilaevis. FISH & SHELLFISH IMMUNOLOGY 2017; 60:466-473. [PMID: 27840169 DOI: 10.1016/j.fsi.2016.11.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/04/2016] [Accepted: 11/09/2016] [Indexed: 06/06/2023]
Abstract
Tissue factor pathway inhibitor 1 (TFPI-1) is a serine protease inhibitor that inhibits tissue factor (TF)-mediated coagulation. The C-terminal region of TFPI-1 could be cleaved off and proved to be antimicrobial against a broad-spectrum of microorganism. In a previous study, a C-terminal peptide, TC24 (with 24 amino acids), derived from tongue sole (Cynoglossus semilaevis) TFPI-1, was synthesized and found antibacterial against Micrococcus luteus. In the present study, the antibacterial spectrum and the action mode of TC24 was further examined, and its in vivo function was analyzed. Our results showed that TC24 also possesses bactericidal activity against Staphylococcus aureus and Vibrio vulnificus. During its interaction with the target bacterial cells, TC24 destroyed cell membrane integrity, penetrated into the cytoplasm, and induced degradation of genomic DNA and total RNA. In vivo study showed that administration of tongue sole with TC24 before bacterial and viral infection significantly reduced pathogen dissemination and replication in tissues. These results indicated that TC24 is a novel antimicrobial peptide against bacterial and viral pathogens, and that the observed effect of TC24 on bacterial RNA adds new insights to the action mechanism of fish antimicrobial peptides. Moreover, TC24 may play an important role in fighting pathogenic infection in aquaculture.
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Affiliation(s)
- Shu-Wen He
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jian Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Ning-Qiu Li
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Key Laboratory of Aquatic Animal Immune Technology, Guangdong Province, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510380, China
| | - Shun Zhou
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Bin Yue
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China
| | - Min Zhang
- Marine Science and Engineering College, Qingdao Agricultural University, Qingdao, 266109, China.
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22
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Zhao Y, Zhang M, Qiu S, Wang J, Peng J, Zhao P, Zhu R, Wang H, Li Y, Wang K, Yan W, Wang R. Antimicrobial activity and stability of the D-amino acid substituted derivatives of antimicrobial peptide polybia-MPI. AMB Express 2016; 6:122. [PMID: 27900727 PMCID: PMC5128008 DOI: 10.1186/s13568-016-0295-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 11/22/2016] [Indexed: 01/24/2023] Open
Abstract
Antimicrobial peptide has the potential to be developed as new kind of antimicrobial agents with novel action mechanism. However, the susceptibility to protease is a drawback for potential peptides to be clinical used. d-amino acid substitution can be one way to increase the proteolytic stability of peptides. In the present study, we synthesized the d-lysines substituted analog (d-lys-MPI) and the d-enantiomer of polybia-MPI (D-MPI) to improve the proteolytic resistance of polybia-MPI. Our results showed that, the stability of its d-amino acid partially substituted analog d-lys-MPI was increased. However, it lost antimicrobial activity at the tested concentration with the loss of α-helix content. As shown in the CD spectra, after substitution, the spectra of D-MPI is symmetrical to MPI, indicated it turned into left hand α-helical conformation. Excitingly, the stability of D-MPI toward the tested protease was improved greatly. Notably, the antimicrobial activity of D-MPI was comparable to its L-counterpart MPI, even improved. In addition, the hemolytic activity of D-MPI was lowered. This also indicated that the action target of antimicrobial peptide polybia-MPI was not chiral specific. So, D-MPI may offer a therapeutic strategy to defend the infection of microbes, considering its stability to protease and relatively lower cytotoxicity to human erythrocytes.
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23
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Fan K, Li H, Wang Z, Du W, Yin W, Sun Y, Jiang J. Expression and purification of the recombinant porcine NK-lysin in Pichia pastoris and observation of anticancer activity in vitro. Prep Biochem Biotechnol 2016; 46:65-70. [PMID: 25357101 DOI: 10.1080/10826068.2014.979206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Natural killer (NK)-lysin, a broad-spectrum antimicrobial peptide, has antitumor and antibactericidal activities against both gram-positive and gram-negative bacteria. In this study the recombinant porcine NK-lysin was expressed and purified in the Pichia pastoris system, and then 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide was used to assess its anticancer activity in vitro. The results showed that the recombinant porcine NK-lysin possesses potent antitumor activity against the human hepatocellular carcinoma cell line SMMC-7721 in a time- and dose-dependent manner, but has negligible hemolysis activity against human erythrocytes. Scanning electronic microscopy was used to directly observe the ultrastructure of SMMC-7721 cells treated with NK-lysin; untreated cells showed lamellipodia and filopodia scattered with the cell surface, with good cell-cell contacts among neighboring cells. In contrast, treated tumor cells exhibited marked alterations in cell morphology, and cell-cell contacts disappeared among neighboring cells. Compared with the untreated tumor cells, the tumor cells treated with NK-lysin for 12 and 24 hr were suppressed for the expression of fascin 1. Thus, the recombinant porcine NK-lysin potentially could be developed as a therapeutic agent for inhibiting tumor growth.
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Affiliation(s)
- Kuohai Fan
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi , China
| | - Hongquan Li
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi , China
| | - Zhirui Wang
- b Transplantation Biology Research Center , Massachusetts General Hospital and Harvard Medical School , Boston , Massachusetts , USA.,c MGH-DF/HCC Recombinant Protein Expression and Purification Core , Boston , Massachusetts , USA
| | - Wenjuan Du
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi , China
| | - Wei Yin
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi , China
| | - Yaogui Sun
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi , China
| | - Junbing Jiang
- a College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , Shanxi , China
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24
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Zhou QJ, Wang J, Liu M, Qiao Y, Hong WS, Su YQ, Han KH, Ke QZ, Zheng WQ. Identification, expression and antibacterial activities of an antimicrobial peptide NK-lysin from a marine fish Larimichthys crocea. FISH & SHELLFISH IMMUNOLOGY 2016; 55:195-202. [PMID: 27238427 DOI: 10.1016/j.fsi.2016.05.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 06/05/2023]
Abstract
As fundamental immunologic mechanism, the innate immunity system is more important than the specific immunity system in teleost fishes during pathogens infection. Antimicrobial peptides are integral parts of the innate immune system, and play significant roles against pathogens infection. NK-lysin, the compounds of the natural killer cells and cytotoxic T cells, are potent and effective antimicrobial peptides widely distributed in animals. In this study, we reported the sequence characteristics, expression profiles and antibacterial activities of a NK-lysin gene (Lc-NK-lysin) from a commercially important marine fish, the large yellow croaker (Larimichthys crocea). The open reading frame of Lc-NK-lysin cDNA sequence was 447 bp in length, coding 148 amino acids. The genomic DNA of Lc-NK-lysin has the common features of NK-lysin family, consisting of five exons and four introns, and in its deduced mature peptide, there are six well-conserved cysteine residues and a Saposin B domain. Lc-NK-lysin was expressed in all tested tissues (skin, muscle, gill, brain, head kidney, heart, liver, spleen, stomach and intestine) with different expression patterns. In pathogens infection the expression profiles of Lc-NK-lysin varied significantly in gill, head kidney, spleen and liver, indicating its role in immune response. Two peptides (Lc-NK-lysin-1 and Lc-NK-lysin-2) divided from the core region of the Lc-NK-lysin mature polypeptide were chemically synthesized and their antibacterial activities were examined; the potential function on the inhibition of bacteria propagation was revealed. Our results suggested that Lc-NK-lysin is a typical member of the NK-lysin family and as an immune-related gene it involves in the immune response when pathogens invasion.
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Affiliation(s)
- Qi-Jia Zhou
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, Fujian, China
| | - Jun Wang
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, Fujian, China
| | - Min Liu
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, Fujian, China
| | - Ying Qiao
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, Fujian, China
| | - Wan-Shu Hong
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, Fujian, China
| | - Yong-Quan Su
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, Fujian, China.
| | - Kun-Huang Han
- State Key Laboratory of Breeding of Larimichthys crocea, Ningde 352103, Fujian, China
| | - Qiao-Zhen Ke
- State Key Laboratory of Breeding of Larimichthys crocea, Ningde 352103, Fujian, China
| | - Wei-Qiang Zheng
- State Key Laboratory of Breeding of Larimichthys crocea, Ningde 352103, Fujian, China
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25
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Chen J, Yang C, Tizioto PC, Huang H, Lee MOK, Payne HR, Lawhon SD, Schroeder F, Taylor JF, Womack JE. Expression of the Bovine NK-Lysin Gene Family and Activity against Respiratory Pathogens. PLoS One 2016; 11:e0158882. [PMID: 27409794 PMCID: PMC4943647 DOI: 10.1371/journal.pone.0158882] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 06/23/2016] [Indexed: 12/22/2022] Open
Abstract
Unlike the genomes of many mammals that have a single NK-lysin gene, the cattle genome contains a family of four genes, one of which is expressed preferentially in the lung. In this study, we compared the expression of the four bovine NK-lysin genes in healthy animals to animals challenged with pathogens known to be associated with bovine respiratory disease (BRD) using transcriptome sequencing (RNA-seq). The expression of several NK-lysins, especially NK2C, was elevated in challenged relative to control animals. The effects of synthetic peptides corresponding to functional region helices 2 and 3 of each gene product were tested on both model membranes and bio-membranes. Circular dichroism spectroscopy indicated that these peptides adopted a more helical secondary structure upon binding to an anionic model membrane and liposome leakage assays suggested that these peptides disrupt membranes. Bacterial killing assays further confirmed the antimicrobial effects of these peptides on BRD-associated bacteria, including both Pasteurella multocida and Mannhemia haemolytica and an ultrastructural examination of NK-lysin-treated P. multocida cells by transmission electron microscopy revealed the lysis of target membranes. These studies demonstrate that the expanded bovine NK-lysin gene family is potentially important in host defense against pathogens involved in bovine respiratory disease.
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Affiliation(s)
- Junfeng Chen
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Chingyuan Yang
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Polyana C. Tizioto
- Embrapa Southeast Livestock, São Carlos, Brazil
- Division of Animal Sciences, University of Missouri, Columbia, United States of America
| | - Huan Huang
- Department of Physiology and Pharmacology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Mi O. K. Lee
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Harold R. Payne
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Sara D. Lawhon
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Friedhelm Schroeder
- Department of Physiology and Pharmacology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
| | - Jeremy F. Taylor
- Division of Animal Sciences, University of Missouri, Columbia, United States of America
| | - James E. Womack
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, United States of America
- * E-mail:
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26
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Two-peptide bacteriocin PlnEF causes cell membrane damage to Lactobacillus plantarum. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:274-80. [DOI: 10.1016/j.bbamem.2015.11.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 09/16/2015] [Accepted: 11/21/2015] [Indexed: 11/24/2022]
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27
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Wang K, Jia F, Dang W, Zhao Y, Zhu R, Sun M, Qiu S, An X, Ma Z, Zhu Y, Yan J, Kong Z, Yan W, Wang R. Antifungal effect and action mechanism of antimicrobial peptide polybia-CP. J Pept Sci 2015; 22:28-35. [PMID: 26680221 DOI: 10.1002/psc.2835] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/10/2015] [Accepted: 10/13/2015] [Indexed: 11/10/2022]
Abstract
The incidence of life-threatening invasive fungal infections increased significantly in recent years. However, the antifungal therapeutic options are very limited. Antimicrobial peptides are a class of potential lead chemical for the development of novel antifungal agents. Antimicrobial peptide polybia-CP was purified from the venom of the social wasp Polybia paulista. In this study, we synthesized polybia-CP and determined its antifungal effects against a series of Candidian species. Our results showed that polybia-CP has potent antifungal activity and fungicidal activity against the tested fungal cells with a proposed membrane-active action mode. In addition, polybia-CP could induce the increase of cellular reactive oxygen species production, which would attribute to its antifungal activity. In conclusion, the present study suggests that polybia-CP has potential as an antifungal agent or may offer a new strategy for antifungal therapeutic option.
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Affiliation(s)
- Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Fengjing Jia
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Wen Dang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Yanyan Zhao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Ranran Zhu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Mengyang Sun
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Shuai Qiu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Xiaoping An
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Zelin Ma
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Yuanyuan Zhu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Jiexi Yan
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Ziqing Kong
- Institute of Food Safety, State Key Laboratory Base of Food Quality and Safety, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Wenjin Yan
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Institute of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, China
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28
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Deng X, Qiu Q, Wang X, Huang W, Qian H. Design, Synthesis, and Biological Evaluation of Novel Cholesteryl Peptides with Anticancer and Multidrug Resistance-Reversing Activities. Chem Biol Drug Des 2015; 87:374-81. [DOI: 10.1111/cbdd.12667] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/22/2015] [Accepted: 09/10/2015] [Indexed: 01/14/2023]
Affiliation(s)
- Xin Deng
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang Nanjing Jiangsu 210009 China
| | - Qianqian Qiu
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang Nanjing Jiangsu 210009 China
| | - Xuekun Wang
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang Nanjing Jiangsu 210009 China
| | - Wenlong Huang
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang Nanjing Jiangsu 210009 China
| | - Hai Qian
- Center of Drug Discovery; State Key Laboratory of Natural Medicines; China Pharmaceutical University; 24 Tongjiaxiang Nanjing Jiangsu 210009 China
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Fan K, Jiang J, Wang Z, Yin W, Sun Y, Li H. Expression and purification of the recombinant murine REG3α protein in Pichia pastorisand characterization of its antimicrobial and antitumour efficacy. BIOTECHNOL BIOTEC EQ 2015. [DOI: 10.1080/13102818.2015.1037794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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30
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Yuan W, Jin HT, Ren ZH, Deng JL, Zuo ZC, Wang Y, Deng HD, Deng YT. Effects of antibacterial peptide on humoral immunity in weaned piglets. FOOD AGR IMMUNOL 2015. [DOI: 10.1080/09540105.2015.1007448] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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31
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Ren ZH, Yuan W, Deng HD, Deng JL, Dan QX, Jin HT, Tian CL, Peng X, Liang Z, Gao S, Xu SH, Li G, Hu Y. Effects of antibacterial peptide on cellular immunity in weaned piglets. J Anim Sci 2014; 93:127-34. [PMID: 25403191 DOI: 10.2527/jas.2014-7933] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The aim of this study was to evaluate the effects of antibacterial peptide (ABP) sufficiency on cellular immune functions by determining the spleen cell cycle and apoptosis, peripheral blood T cell subsets, and T cell proliferation function in weaned piglets. A total of 90 piglets (Duroc × Landrace × Yorkshire) of both sexes were randomly allotted to 5 dietary treatments. Each treatment consisted of 3 replicates with 6 piglets per replicate. The dietary treatments consisted of the negative control (NC; basal diet), positive control (PC; basal diet supplemented with 400 mg/kg Astragalus polysaccharide), and ABP (basal diet mixed with 250, 500, and 1,000 mg/kg ABP). The experimental lasted for 28 d. Two piglets from each replicate were selected randomly for blood samples extraction from the jugular vein to obtain peripheral blood T cell subsets, and T cell proliferation function analysis was performed on d 32, 39, 46, and 53. Two piglets from each replicate were selected and euthanized to observe the spleen cell cycle and apoptosis on d 39 and 53. In ABP-sufficient piglets, the G0/G1 phase of the spleen cell cycle was much lower (P < 0.05) and the S and G2 + M phases and proliferation index (PI) were greater (P < 0.05) than in NC piglets. The percentage of apoptotic cells in the spleen significantly decreased under ABP sufficiency (P < 0.05). The proliferation function of peripheral blood T cells increased (P < 0.05) in ABP-sufficient piglets. Percentages of CD3 (+) and CD3 (+)CD4 (+) ratios (d 39, 46, and 53) and CD4 (+)CD8 (+) ratios (d 32, 39, 46, and 53) increased remarkably (P < 0.05) under ABP sufficiency compared with NC. These results suggest that ABP sufficiency could increase the T cell population and proliferation function of T cells and could induce decreased percentages of apoptotic cells. Overall, the cellular immune function was evidently improved in weaned piglets. We suggest optimal dosages of 500 mg/kg ABP for 4-wk addition and 1,000 mg/kg ABP for 2-wk addition.
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Affiliation(s)
- Z H Ren
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - W Yuan
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - H D Deng
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - J L Deng
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Q X Dan
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - H T Jin
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - C L Tian
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - X Peng
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - Z Liang
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - S Gao
- Department of Veterinary Medicine, Sichuan Agricultural University, Yaan, Sichuan 625014, China
| | - S H Xu
- Qianxing Veterinary Pharmaceutical Co., Ltd, Chengdu, Sichuan 610000, China
| | - G Li
- Rota Bioengineering Co., Ltd., Chengdu, Sichuan 610000, China
| | - Y Hu
- Rota Bioengineering Co., Ltd., Chengdu, Sichuan 610000, China
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32
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Zhang M, Li MF, Sun L. NKLP27: a teleost NK-lysin peptide that modulates immune response, induces degradation of bacterial DNA, and inhibits bacterial and viral infection. PLoS One 2014; 9:e106543. [PMID: 25180858 PMCID: PMC4152322 DOI: 10.1371/journal.pone.0106543] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 08/06/2014] [Indexed: 12/30/2022] Open
Abstract
NK-lysin is an antimicrobial protein produced by cytotoxic T lymphocytes and natural killer cells. In this study, we examined the biological property of a peptide, NKLP27, derived from tongue sole (Cynoglossus semilaevis) NK-lysin. NKLP27 is composed of 27 amino acids and shares little sequence identity with known NK-lysin peptides. NKLP27 possesses bactericidal activity against both Gram-negative and Gram-positive bacteria including common aquaculture pathogens. The bactericidal activity of NKLP27 was dependent on the C-terminal five residues, deletion of which dramatically reduced the activity of NKLP27. During its interaction with the target bacterial cells, NKLP27 destroyed cell membrane integrity, penetrated into the cytoplasm, and induced degradation of genomic DNA. In vivo study showed that administration of tongue sole with NKLP27 before bacterial and viral infection significantly reduced pathogen dissemination and replication in tissues. Further study revealed that fish administered with NKLP27 exhibited significantly upregulated expression of the immune genes including those that are known to be involved in antibacterial and antiviral defense. These results indicate that NKLP27 is a novel antimicrobial against bacterial and viral pathogens, and that the observed effect of NKLP27 on bacterial DNA and host gene expression adds new insights to the action mechanism of fish antimicrobial peptides.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- College of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Mo-fei Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Graduate University of the Chinese Academy of Sciences, Beijing, China
| | - Li Sun
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
- Collaborative Innovation Center of Deep Sea Biology, Zhejiang University, Hangzhou, China
- * E-mail:
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33
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Expression and purification of soluble porcine cystatin 11 in Pichia pastoris. Appl Biochem Biotechnol 2014; 174:1959-68. [PMID: 25161037 DOI: 10.1007/s12010-014-1148-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 08/13/2014] [Indexed: 12/16/2022]
Abstract
Cystatin 11 (CST11) belongs to the cystatin type 2 family of cysteine protease inhibitors and exhibits antimicrobial activity in vitro. In this study, we describe the expression and purification of recombinant porcine CST11 in the Pichia pastoris system. We then assess its antimicrobial activity against Escherichia coli, Staphylococcus aureus, Staphylococcus epidermidis, and Bacillus subtilis by liquid growth inhibition assay. Kinetic studies indicate that the recombinant porcine CST11 has high potency against E. coli and S. aureus. Scanning electronic microscope analysis showed that CST11 might be targeting the bacterial membrane and, thus, could potentially be developed as a therapeutic agent for inhibiting microbe infection without the risk of antibiotic resistance.
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34
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Zhang Y, Song J, Zhang W, Liang R, Ma Y, Zhang L, Wei X, Ni J, Wang R. Functional properties of a novel hybrid antimicrobial peptide NS: potent antitumor activity and efficient plasmid delivery. J Pept Sci 2014; 20:785-93. [DOI: 10.1002/psc.2667] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/23/2014] [Accepted: 05/28/2014] [Indexed: 01/08/2023]
Affiliation(s)
- Yun Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Jingjing Song
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
| | - Wei Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
| | - Ranran Liang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
| | - Yinyun Ma
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Li Zhang
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Xiaojin Wei
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Jingman Ni
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
- School of Pharmacy; Lanzhou University; Lanzhou 730000 China
| | - Rui Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences; Lanzhou University; Lanzhou 730000 China
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Islami M, Mehrnejad F, Doustdar F, Alimohammadi M, Khadem-Maaref M, Mir-Derikvand M, Taghdir M. Study of orientation and penetration of LAH4 into lipid bilayer membranes: pH and composition dependence. Chem Biol Drug Des 2014; 84:242-52. [PMID: 24581146 DOI: 10.1111/cbdd.12311] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 02/12/2014] [Accepted: 02/14/2014] [Indexed: 11/29/2022]
Abstract
LAH4 is an antimicrobial peptide that is believed to possess both antibiotic and DNA delivery capabilities. It is one of a number of membrane-active peptides that show increased affinity toward anionic lipids. Herein, we have performed molecular dynamics simulations to compare LAH4 effects on anionic palmitoyl-oleoyl-phosphatidylglycerol bilayer, which approximate a prokaryotic membrane environment and zwitterionic palmitoyl-oleoyl-phosphatidylcholine bilayer, which approximate a eukaryotic membrane environment. One particular interest in this work is to study how different kinds of lipid bilayers respond to the attraction of LAH4. Remarkably, our data have shown that the depth of peptide penetration strongly depends on membrane composition and pH. At acidic pH, LAH4 has exhibited a high tendency to interact strongly with and be adsorbed on anionic membrane. We have also shown that electrostatic interactions between His11 and the phosphor atoms of bilayers should have a significant impact on the penetration of LAH4. These results provide insights into the interactions of LAH4 and lipid bilayers at the atomic level, which is useful to understand cell selectivity and mechanism of the peptide action.
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Affiliation(s)
- Matin Islami
- Department of Cellular and Molecular Biology, Faculty of Science, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran
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Muñoz F, Palomares-Jerez MF, Daleo G, Villalaín J, Guevara MG. Possible mechanism of structural transformations induced by StAsp-PSI in lipid membranes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:339-47. [DOI: 10.1016/j.bbamem.2013.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 08/02/2013] [Accepted: 08/06/2013] [Indexed: 01/19/2023]
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Buri MV, Domingues TM, Paredes-Gamero EJ, Casaes-Rodrigues RL, Rodrigues EG, Miranda A. Resistance to degradation and cellular distribution are important features for the antitumor activity of gomesin. PLoS One 2013; 8:e80924. [PMID: 24312251 PMCID: PMC3843672 DOI: 10.1371/journal.pone.0080924] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 10/18/2013] [Indexed: 12/25/2022] Open
Abstract
Many reports have shown that antimicrobial peptides exhibit anticancer abilities. Gomesin (Gm) exhibits potent cytotoxic activity against cancer cells by a membrane pore formation induced after well-orchestrated intracellular mechanisms. In this report, the replacements of the Cys by Ser or Thr, and the use D-amino acids in the Gm structure were done to investigate the importance of the resistance to degradation of the molecule with its cytotoxicity. [Thr2,6,11,15]-Gm, and [Ser2,6,11,15]-Gm exhibits low cytotoxicity, and low resistance to degradation, and after 24 h are present in localized area near to the membrane. Conversely, the use of D-amino acids in the analogue [D-Thr2,6,11,15]-D-Gm confers resistance to degradation, increases its potency, and maintained this peptide spread in the cytosol similarly to what happens with Gm. Replacements of Cys by Thr and Gln by L- or D-Pro ([D-Thr2,6,11,15, Pro9]-D-Gm, and [Thr2,6,11,15, D-Pro9]-Gm), which induced a similar β-hairpin conformation, also increase their resistance to degradation, and cytotoxicity, but after 24 h they are not present spread in the cytosol, exhibiting lower cytotoxicity in comparison to Gm. Additionally, chloroquine, a lysosomal enzyme inhibitor potentiated the effect of the peptides. Furthermore, the binding and internalization of peptides was determined, but a direct correlation among these factors was not observed. However, cholesterol ablation, which increase fluidity of cellular membrane, also increase cytotoxicity and internalization of peptides. β-hairpin spatial conformation, and intracellular localization/target, and the capability of entry are important properties of gomesin cytotoxicity.
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Affiliation(s)
- Marcus V. Buri
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Tatiana M. Domingues
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Edgar J. Paredes-Gamero
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail: (EG); (AM)
| | | | - Elaine Guadelupe Rodrigues
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Antonio Miranda
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
- * E-mail: (EG); (AM)
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Tian Y, Wang H, Li B, Ke M, Wang J, Dou J, Zhou C. The cathelicidin-BF Lys16 mutant Cbf-K16 selectively inhibits non-small cell lung cancer proliferation in vitro. Oncol Rep 2013; 30:2502-10. [PMID: 23982315 DOI: 10.3892/or.2013.2693] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 08/02/2013] [Indexed: 11/05/2022] Open
Abstract
The 30-amino acid antimicrobial peptide Cbf-K16 is a cathelicidin-BF (BF-30) Lys16 mutant derived from the snake venom of Bungarus fasciatus. Our previous study found that BF-30 selectively inhibited the proliferation of the metastatic melanoma cell line B16F10 in vitro and in vivo, but had a negligible effect on human lung cells. In the present study, it was demonstrated for the first time that Cbf-K16 selectively inhibits the proliferation of lung carcinoma cells in vitro, with low toxicity to normal cells. The half-maximal inhibitory concentrations (IC50) of Cbf-K16 against H460 human non-small cell lung carcinoma cells and mouse Lewis lung cancer cells were only 16.5 and 10.5 µM, respectively, which were much less compared to that of BF-30 (45 and 40.3 µM). Data using a transmission electron microscope (TEM) assay showed that, at 20 and 40 µM, Cbf-K16 induced the rupture of the cytoplasmic membrane, which was consistent with data obtained from lactate dehydrogenase (LDH) release assays. The LDH release increased from 17.8 to 52.9% as the duration and dosage of Cbf-K16 increased. Annexin V-fluorescein and propidium iodide staining assays indicated that there were no obvious apoptotic effects at the different dosages and times tested. In H460 cells, the rate of genomic DNA binding increased from 51.9 to 86.8% as the concentration of Cbf-K16 increased from 5 to 10 µM. These data indicate that Cbf-K16 selectively inhibits the proliferation of lung carcinoma cells via cytoplasmic membrane permeabilization and DNA binding, rather than apoptosis. Although Cbf-K16 displayed significant cytotoxic activity (40 µM) against tumor cells, in splenocytes no significant inhibitory effect was observed and hemolysis was only 5.6%. These results suggest that Cbf-K16 is a low-toxicity anti-lung cancer drug candidate.
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Affiliation(s)
- Yuwei Tian
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu 210009, P.R. China
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Xing Y, Zhang W, Song J, Zhang Y, Jiang X, Wang R. Anticancer effects of a novel class rosin-derivatives with different mechanisms. Bioorg Med Chem Lett 2013; 23:3868-72. [DOI: 10.1016/j.bmcl.2013.04.069] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/24/2013] [Accepted: 04/26/2013] [Indexed: 01/11/2023]
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40
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BF-30 selectively inhibits melanoma cell proliferation via cytoplasmic membrane permeabilization and DNA-binding in vitro and in B16F10-bearing mice. Eur J Pharmacol 2013; 707:1-10. [DOI: 10.1016/j.ejphar.2013.03.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 03/13/2013] [Accepted: 03/13/2013] [Indexed: 12/13/2022]
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41
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Two hits are better than one: membrane-active and DNA binding-related double-action mechanism of NK-18, a novel antimicrobial peptide derived from mammalian NK-lysin. Antimicrob Agents Chemother 2012; 57:220-8. [PMID: 23089755 DOI: 10.1128/aac.01619-12] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The extensive use and misuse of antibiotics in medicine result in the emergence of multidrug-resistant bacteria, creating an urgent need for the development of new chemotherapeutic agents. Nowadays, antimicrobial peptides are widely recognized as a class of promising candidates with activity against multidrug-resistant bacteria. NK-18 is a truncated peptide derived from NK-Lysin, an effector of cytotoxic T cells and natural killer cells. In this study, we studied the antibacterial mechanism of action of NK-18. The results revealed that NK-18 has potent antibacterial activity against Escherichia coli and Staphylococcus aureus. According to our findings, NK-18 is membrane active and its target of action is not only the bacterial membrane but also the DNA in the cytoplasm. The double targets of NK-18 make it difficult for bacteria to generate resistance, which may present a new strategy to defend against multidrug-resistant bacteria and provide a new lead in the design of potent antimicrobial peptides with therapeutic application in the presence of increasing resistance to conventional antibiotics.
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