1
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Dananjaya SHS, Madushani KGP, Dilrukshi J, De Silva ND, Sandamalika WMG, Kim D, Choi D, De Zoysa M, Attanayake AP. Development and characterization of polydeoxyribonucleotide (PDRN) loaded chitosan polyplex: In vitro and in vivo evaluation of wound healing activity. Int J Biol Macromol 2023; 253:126729. [PMID: 37689303 DOI: 10.1016/j.ijbiomac.2023.126729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/26/2023] [Accepted: 09/03/2023] [Indexed: 09/11/2023]
Abstract
Polydeoxyribonucleotide (PDRN) is an accelerated diabetic wound healing therapy with promising abilities to promote cell growth, angiogenesis, collagen synthesis, and reduce inflammation where its sustainable delivery and release behavior is critical to ensure effective wound healing properties. Therefore, a nanopolyplex was developed here, by encapsulating PDRN with chitosan to affirm its delivery systematically. The physicochemical characterization revealed its successful encapsulation which facilitates the gradual release of PDRN. In vitro studies of the polyplex demonstrated no cytotoxicity and enhanced cell proliferation and migration properties with high antimicrobial activities. In vivo, wound healing studies in Wistar rats dorsal skin defect model induced with diabetes mellitus affirm the highest wound healing activity and wound closure rate by chitosan/PDRN polyplex treatment. Considerably high histopathological changes such as epithelialization, collagen deposition, blood vessels, and hair follicle formation were observed under the polyplex treatment. The immunohistochemical analysis for platelet endothelial cell adhesion molecule (CD31) and cluster of differentiation (CD68) revealed the ability of polyplex to increase CD31 expression and decrease CD68 expression thereby promoting the wound healing process. Collectively, these results suggest that significantly accelerated, high-quality wound healing effects could be obtained by the developed chitosan/PDRN polyplex and thus it could be introduced as a potential therapeutic product for diabetic wound healing.
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Affiliation(s)
- S H S Dananjaya
- Zerone Cellvane Inc, 3(rd) Floor, Sanhak Building, Dankook University, Dandae-ro 119, Dongnam-gu, Cheonan Si, Chungcheongnam-do 31116, Republic of Korea
| | - K G P Madushani
- Department of Botany, Faculty of Natural Sciences, The Open University of Sri Lanka, Sri Lanka
| | - Jeewani Dilrukshi
- Sri Lanka Accreditation Board for Conformity Assessment Colombo, Sri Lanka
| | - Nayomi D De Silva
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka
| | - W M Gayashani Sandamalika
- Department of Aquaculture and Fisheries, Faculty of Livestock, Fisheries and Nutrition, Wayamba University of Sri Lanka, Sri Lanka
| | - Dukgyu Kim
- Zerone Cellvane Inc, 3(rd) Floor, Sanhak Building, Dankook University, Dandae-ro 119, Dongnam-gu, Cheonan Si, Chungcheongnam-do 31116, Republic of Korea
| | - Dongrack Choi
- Zerone Cellvane Inc, 3(rd) Floor, Sanhak Building, Dankook University, Dandae-ro 119, Dongnam-gu, Cheonan Si, Chungcheongnam-do 31116, Republic of Korea
| | - Mahanama De Zoysa
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Anoja P Attanayake
- Department of Biochemistry, Faculty of Medicine, University of Ruhuna, Galle, Sri Lanka.
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2
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Pedron CN, Torres MDT, Oliveira CS, Silva AF, Andrade GP, Wang Y, Pinhal MAS, Cerchiaro G, da Silva Junior PI, da Silva FD, Radhakrishnan R, de la Fuente-Nunez C, Oliveira Junior VX. Molecular hybridization strategy for tuning bioactive peptide function. Commun Biol 2023; 6:1067. [PMID: 37857855 PMCID: PMC10587126 DOI: 10.1038/s42003-023-05254-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/17/2023] [Indexed: 10/21/2023] Open
Abstract
The physicochemical and structural properties of antimicrobial peptides (AMPs) determine their mechanism of action and biological function. However, the development of AMPs as therapeutic drugs has been traditionally limited by their toxicity for human cells. Tuning the physicochemical properties of such molecules may abolish toxicity and yield synthetic molecules displaying optimal safety profiles and enhanced antimicrobial activity. Here, natural peptides were modified to improve their activity by the hybridization of sequences from two different active peptide sequences. Hybrid AMPs (hAMPs) were generated by combining the amphipathic faces of the highly toxic peptide VmCT1, derived from scorpion venom, with parts of four other naturally occurring peptides having high antimicrobial activity and low toxicity against human cells. This strategy led to the design of seven synthetic bioactive variants, all of which preserved their structure and presented increased antimicrobial activity (3.1-128 μmol L-1). Five of the peptides (three being hAMPs) presented high antiplasmodial at 0.8 μmol L-1, and virtually no undesired toxic effects against red blood cells. In sum, we demonstrate that peptide hybridization is an effective strategy for redirecting biological activity to generate novel bioactive molecules with desired properties.
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Affiliation(s)
- Cibele Nicolaski Pedron
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210580, Brazil
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, 04044020, Brazil
| | - Marcelo Der Torossian Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Cyntia Silva Oliveira
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, 04044020, Brazil
| | - Adriana Farias Silva
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, 04044020, Brazil
| | - Gislaine Patricia Andrade
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210580, Brazil
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, 04044020, Brazil
| | - Yiming Wang
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Giselle Cerchiaro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210580, Brazil
| | | | - Fernanda Dias da Silva
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210580, Brazil
| | - Ravi Radhakrishnan
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA.
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA, USA.
| | - Vani Xavier Oliveira Junior
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, SP, 09210580, Brazil.
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo, SP, 04044020, Brazil.
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3
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Insuasty-Cepeda DS, Barragán-Cárdenas AC, Ardila-Chantre N, Cárdenas-Martínez KJ, Rincón-Quiñones I, Vargas-Casanova Y, Ochoa-Zarzosa A, Lopez-Meza JE, Parra-Giraldo CM, Ospina-Giraldo LF, Fierro-Medina R, García-Castañeda JE, Rivera-Monroy ZJ. Non-natural amino acids into LfcinB-derived peptides: effect in their (i) proteolytic degradation and (ii) cytotoxic activity against cancer cells. ROYAL SOCIETY OPEN SCIENCE 2023; 10:221493. [PMID: 37325596 PMCID: PMC10265003 DOI: 10.1098/rsos.221493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 04/21/2023] [Indexed: 06/17/2023]
Abstract
The dimeric peptide 26[F]: (RRWQWRFKKLG)2-K-Ahx has exhibited a potent cytotoxic effect against breast cancer cell lines, with position 26 (F) being the most relevant for anti-cancer activity. In this investigation, six analogues of the 26[F] peptide were synthesized in which the 26th position was replaced by non-natural hydrophobic amino acids, finding that some modifications increased the resistance to proteolytic degradation exerted by trypsin or pepsin. Additionally, these modifications increased the cytotoxic effect against breast cancer cells and generated cell death mediated by apoptosis pathways, activating caspases 8 and 9, and did not compromise the integrity of the cytoplasmic membrane. Finally, it was found that the modified peptides have a broad spectrum of action, since they also have a cytotoxic effect against the HeLa human cervical cancer cell line. Peptide 26[F] was inoculated in mice by ip administration and the lethal dose 50 (LD50) was between 70 and 140 mg kg-1. While for the 26[1-Nal]: (RRWQWR-1-Nal-KKLG)2-K-Ahx peptide, a dose-response test was performed, and the survival rate was 100%. These results suggested that these peptides are safe in this animal model and could be considered as promissory to develop a treatment against breast cancer.
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Affiliation(s)
- Diego Sebastián Insuasty-Cepeda
- Chemistry Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia
| | | | - Natalia Ardila-Chantre
- Pharmacy Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 450, Bogotá 11321, Colombia
| | | | - Isabella Rincón-Quiñones
- Pharmacy Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 450, Bogotá 11321, Colombia
| | - Yerly Vargas-Casanova
- Microbiology deparment, Pontificia Universidad Javeriana, Bogotá, Carrera 7 No 40-62, Building 450, Bogotá 11321, Colombia
| | - Alejandra Ochoa-Zarzosa
- Multidisciplinary Centre for Studies in Biotechnology, Universidad Michoacana de San Nicolas de Hidalgo, Km 9.5, Morelia, Mexico
| | - Joel Edmundo Lopez-Meza
- Multidisciplinary Centre for Studies in Biotechnology, Universidad Michoacana de San Nicolas de Hidalgo, Km 9.5, Morelia, Mexico
| | - Claudia Marcela Parra-Giraldo
- Microbiology deparment, Pontificia Universidad Javeriana, Bogotá, Carrera 7 No 40-62, Building 450, Bogotá 11321, Colombia
| | - Luis Fernando Ospina-Giraldo
- Pharmacy Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 450, Bogotá 11321, Colombia
| | - Ricardo Fierro-Medina
- Chemistry Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia
| | | | - Zuly Jenny Rivera-Monroy
- Chemistry Department, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia
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4
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Efficacy of natural antimicrobial peptides versus peptidomimetic analogues: a systematic review. Future Med Chem 2022; 14:1899-1921. [PMID: 36421051 DOI: 10.4155/fmc-2022-0160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Aims: This systematic review was carried out to determine whether synthetic peptidomimetics exhibit significant advantages over antimicrobial peptides in terms of in vitro potency. Structural features - molecular weight, charge and length - were examined for correlations with activity. Methods: Original research articles reporting minimum inhibitory concentration values against Escherichia coli, indexed until 31 December 2020, were searched in PubMed/ScienceDirect/Google Scholar and evaluated using mixed-effects models. Results: In vitro antimicrobial activity of peptidomimetics resembled that of antimicrobial peptides. Net charge significantly affected minimum inhibitory concentration values (p < 0.001) with a trend of 4.6% decrease for increments in charge by +1. Conclusion: AMPs and antibacterial peptidomimetics exhibit similar potencies, providing an opportunity to exploit the advantageous stability and bioavailability typically associated with peptidomimetics.
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5
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Wesseling CJ, Martin NI. Synergy by Perturbing the Gram-Negative Outer Membrane: Opening the Door for Gram-Positive Specific Antibiotics. ACS Infect Dis 2022; 8:1731-1757. [PMID: 35946799 PMCID: PMC9469101 DOI: 10.1021/acsinfecdis.2c00193] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
New approaches to target antibacterial agents toward Gram-negative bacteria are key, given the rise of antibiotic resistance. Since the discovery of polymyxin B nonapeptide as a potent Gram-negative outer membrane (OM)-permeabilizing synergist in the early 1980s, a vast amount of literature on such synergists has been published. This Review addresses a range of peptide-based and small organic compounds that disrupt the OM to elicit a synergistic effect with antibiotics that are otherwise inactive toward Gram-negative bacteria, with synergy defined as a fractional inhibitory concentration index (FICI) of <0.5. Another requirement for the inclusion of the synergists here covered is their potentiation of a specific set of clinically used antibiotics: erythromycin, rifampicin, novobiocin, or vancomycin. In addition, we have focused on those synergists with reported activity against Gram-negative members of the ESKAPE family of pathogens namely, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and/or Acinetobacter baumannii. In cases where the FICI values were not directly reported in the primary literature but could be calculated from the published data, we have done so, allowing for more direct comparison of potency with other synergists. We also address the hemolytic activity of the various OM-disrupting synergists reported in the literature, an effect that is often downplayed but is of key importance in assessing the selectivity of such compounds for Gram-negative bacteria.
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6
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Design and Evaluation of Short Bovine Lactoferrin-Derived Antimicrobial Peptides against Multidrug-Resistant Enterococcus faecium. Antibiotics (Basel) 2022; 11:antibiotics11081085. [PMID: 36009954 PMCID: PMC9404989 DOI: 10.3390/antibiotics11081085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 11/17/2022] Open
Abstract
Enterococcus faecium has become an important drug-resistant nosocomial pathogen because of widespread antibiotic abuse. We developed short and chemically simple antimicrobial peptides (AMPs) with a selective amino acid composition, fixed charge, and hydrophobicity ratio based on the core antimicrobial motif of bovine lactoferrin (LfcinB6). Among these peptides, 5L and 6L (both 12 residues long) demonstrated a narrow spectrum and high antibacterial activity against drug-resistant E. faecium isolates with a minimal inhibitory concentration (MIC) that ranged from 4–16 µg/mL. At 32 µg/mL, peptides 5L and 6L inhibited E. faecium strain C68 biofilm formation by 90% and disrupted established biofilms by 75%. At 40 µg/mL, 5L reduced 1 × 107E. faecium persister cells by 3 logs within 120 min of exposure, whereas 6L eliminated all persister cells within 60 min. At 0.5× MIC, 5L and 6L significantly downregulated the expression of a crucial biofilm gene ace by 8 folds (p = 0.02) and 4 folds (p = 0.01), respectively. At 32 µg/mL, peptides 5L and 6L both depolarized the E. faecium membrane, increased fluidity, and eventually ruptured the membrane. Physiologically, 5L (at 8 µg/mL) altered the tricarboxylic acid cycle, glutathione, and purine metabolism. Interestingly, in an ex vivo model of porcine skin infection, compared to no treatment, 5L (at 10× MIC) effectively eliminated all 1 × 106 exponential (p = 0.0045) and persister E. faecium cells (p = 0.0002). In conclusion, the study outlines a roadmap for developing narrow-spectrum selective AMPs and presents peptide 5L as a potential therapeutic candidate to be explored against E. faecium.
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7
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Nakamura M, Tsuda N, Miyata T, Ikenaga M. Antimicrobial effect and mechanism of bovine lactoferrin against the potato common scab pathogen Streptomyces scabiei. PLoS One 2022; 17:e0264094. [PMID: 35213576 PMCID: PMC8880714 DOI: 10.1371/journal.pone.0264094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/02/2022] [Indexed: 12/17/2022] Open
Abstract
Lactoferrin (LF) is a multifunctional protein with a broad spectrum of antimicrobial activities. In this study, we investigated the antimicrobial activity of LF against the potato common scab pathogen Streptomyces scabiei, which causes severe damage to potato tubers. LF derived from bovine (bLF) had much higher activity against S. scabiei than human LF. The minimal inhibitory concentration of bLF was 3.9 μM. The effects of both apo-bLF (iron-free) and holo-bLF (iron-saturated) on S. scabiei were not different. Bovine lactoferricin (LFcinB), a short peptide with a length of 25 amino acid residues located in the N-terminal region of bLF, showed antimicrobial activity against S. scabiei, similar to that of bLF. These results indicated that the antimicrobial activity of bLF against S. scabiei cannot be attributed to its iron-chelating effect but to the bioactivity of its peptides. When S. scabiei was treated with the fusion protein of mCherry-LFcinB (red fluorescent protein) expressed in Escherichia coli, the pseudohyphal cells instantly glowed, indicating that the peptide electrostatically binds to the surface of S. scabiei. An assay of synthetic peptides, with modified number of arginine (Arg) and tryptophan (Trp) residues based on the antimicrobial center (RRWQWR) of LFcinB showed that Trp residues are implicated in the antimicrobial activity against S. scabiei; however, Arg residues are also necessary to carry Trp residues to the cell surface to fully exert its activity. Although the single amino acid effect of Trp had low activity, Trp derivatives showed much higher activity against S. scabiei, suggesting that the derivatives effectively bind to the cell surface (cell membrane) by themselves without a carrier. Thus, amino acid derivatives might be considered effective and alternative antimicrobial substances.
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Affiliation(s)
- Masayuki Nakamura
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
- * E-mail:
| | - Naoaki Tsuda
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
| | - Takeshi Miyata
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
| | - Makoto Ikenaga
- Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
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Liu S, Aweya JJ, Zheng L, Zheng Z, Huang H, Wang F, Yao D, Ou T, Zhang Y. LvHemB1, a novel cationic antimicrobial peptide derived from the hemocyanin of Litopenaeus vannamei, induces cancer cell death by targeting mitochondrial voltage-dependent anion channel 1. Cell Biol Toxicol 2022; 38:87-110. [PMID: 33630204 DOI: 10.1007/s10565-021-09588-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 02/09/2021] [Indexed: 02/05/2023]
Abstract
Current cancer treatment regimens such as chemotherapy and traditional chemical drugs have adverse side effects including the appearance of drug-resistant tumor cells. For these reasons, it is imperative to find novel therapeutic agents that overcome these factors. To this end, we explored a cationic antimicrobial peptide derived from Litopenaeus vannamei hemocyanin (designated LvHemB1) that induces cancer cell death, but sparing normal cells. LvHemB1 inhibits the proliferation of human cervical (HeLa), esophageal (EC109), hepatocellular (HepG2), and bladder (EJ) cancer cell lines, but had no significant effect on normal liver cell lines (T-antigen-immortalized human liver epithelial (THLE-3) cells). In addition to its antiproliferative effects, LvHemB1 induced apoptosis, by permeating cells and targeting mitochondrial voltage-dependent anion channel 1 (VDAC1). Colocalization studies revealed the localization of LvHemB1 in mitochondria, while molecular docking and pull-down analyses confirmed LvHemB1-VDAC1 interaction. Moreover, LvHemB1 causes loss in mitochondrial membrane potential and increases levels of reactive oxygen species (ROS) and apoptotic proteins (caspase-9, caspase-3, and Bax (Bcl-2-associated X)), which results in mitochondrial-mediated apoptosis. Thus, peptide LvHemB1 has the potential of being used as an anticancer agent due to its antiproliferation effect and targeting to VDAC1 to cause mitochondrial dysfunction in cancer cells, as well as its ability to induce apoptosis by increasing ROS levels, and the expression of proapoptotic proteins.
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Affiliation(s)
- Shangjie Liu
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- Institute of Urology, The Affiliated Shenzhen Luohu Hospital of Shantou University Medical College, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Jude Juventus Aweya
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Liyuan Zheng
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Zhou Zheng
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - He Huang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Fan Wang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Defu Yao
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China
| | - Tong Ou
- Institute of Urology, The Affiliated Shenzhen Luohu Hospital of Shantou University Medical College, Shantou University, Shantou, 515063, China.
| | - Yueling Zhang
- Institute of Marine Sciences and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou, 515063, China.
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9
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Escobar‐Salom M, Torrens G, Jordana‐Lluch E, Oliver A, Juan C. Mammals' humoral immune proteins and peptides targeting the bacterial envelope: from natural protection to therapeutic applications against multidrug‐resistant
Gram
‐negatives. Biol Rev Camb Philos Soc 2022; 97:1005-1037. [PMID: 35043558 PMCID: PMC9304279 DOI: 10.1111/brv.12830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 12/11/2022]
Abstract
Mammalian innate immunity employs several humoral ‘weapons’ that target the bacterial envelope. The threats posed by the multidrug‐resistant ‘ESKAPE’ Gram‐negative pathogens (Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter spp.) are forcing researchers to explore new therapeutic options, including the use of these immune elements. Here we review bacterial envelope‐targeting (peptidoglycan and/or membrane‐targeting) proteins/peptides of the mammalian immune system that are most likely to have therapeutic applications. Firstly we discuss their general features and protective activity against ESKAPE Gram‐negatives in the host. We then gather, integrate, and discuss recent research on experimental therapeutics harnessing their bactericidal power, based on their exogenous administration and also on the discovery of bacterial and/or host targets that improve the performance of this endogenous immunity, as a novel therapeutic concept. We identify weak points and knowledge gaps in current research in this field and suggest areas for future work to obtain successful envelope‐targeting therapeutic options to tackle the challenge of antimicrobial resistance.
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Affiliation(s)
- María Escobar‐Salom
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Gabriel Torrens
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Elena Jordana‐Lluch
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Antonio Oliver
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
| | - Carlos Juan
- Department of Microbiology University Hospital Son Espases‐Health Research Institute of the Balearic Islands (IdISBa) Carretera de Valldemossa 79 Palma Balearic Islands 07010 Spain
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10
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Effects of Substituting Arginine by Lysine in Bovine Lactoferricin Derived Peptides: Pursuing Production Lower Costs, Lower Hemolysis, and Sustained Antimicrobial Activity. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10207-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Pineda-Castañeda HM, Huertas-Ortiz KA, Leal-Castro AL, Vargas-Casanova Y, Parra-Giraldo CM, García-Castañeda JE, Rivera-Monroy ZJ. Designing Chimeric Peptides: A Powerful Tool for Enhancing Antibacterial Activity. Chem Biodivers 2020; 18:e2000885. [PMID: 33369144 DOI: 10.1002/cbdv.202000885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 12/21/2020] [Indexed: 11/10/2022]
Abstract
Chimeric peptides containing short sequences derived from bovine Lactoferricin (LfcinB) and Buforin II (BFII) were synthetized using solid-phase peptide synthesis (SPPS) and characterized via reversed-phase liquid chromatography and mass spectrometry. The chimeras were obtained with high purity, demonstrating their synthetic viability. The chimeras' antibacterial activity against Gram-positive and Gram-negative strains was evaluated. Our results showed that all the chimeras exhibited greater antibacterial activity against the evaluated strains than the individual sequences, suggesting that chemical binding of short sequences derived from AMPs significantly increased the antibacterial activity. For each strain, the chimera with the best antibacterial activity exerted a bacteriostatic and/or bactericidal effect, which was dependent on the concentration. It was found that: (i) the antibacterial activity of a chimera is mainly influenced by the linked sequences, the palindromic motif RLLRRLLR being the most relevant one; (ii) the inclusion of a spacer between the short sequences did not significantly affect the chimera's synthesis process; however, it enhanced its antibacterial activity against Gram-negative and Gram-positive strains; on the other hand, (iii) the replacement of Arg with Lys in the LfcinB or BFII sequences improved the chimeras' synthesis process without significantly affecting their antibacterial activity. These results illustrate the great importance of the synthesis of chimeric peptides for the generation of promising antibacterial peptides.
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Affiliation(s)
- Héctor Manuel Pineda-Castañeda
- Chemistry Department, Universidad Nacional de Colombia, Carrera 45 No. 26-85, Building 451, Office 409, Bogotá, Zip Code 11321, Colombia
| | - Kevin Andrey Huertas-Ortiz
- Chemistry Department, Universidad Nacional de Colombia, Carrera 45 No. 26-85, Building 451, Office 409, Bogotá, Zip Code 11321, Colombia
| | - Aura Lucía Leal-Castro
- Medicine Faculty, Universidad Nacional de Colombia, Carrera 45 No. 26-85, Building 451, Office 409, Bogotá, Zip Code 11321, Colombia
| | - Yerly Vargas-Casanova
- Microbiology Department, Pontificia Universidad Javeriana, Carrera 7 No. 40-62, Bogotá, Zip Code 110231, Colombia
| | | | - Javier Eduardo García-Castañeda
- Pharmacy Department, Universidad Nacional de Colombia, Carrera, 45 No. 26-85, Building 450, Office 213, Bogotá, Zip Code 11321, Colombia
| | - Zuly Jenny Rivera-Monroy
- Chemistry Department, Universidad Nacional de Colombia, Carrera 45 No. 26-85, Building 451, Office 409, Bogotá, Zip Code 11321, Colombia
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12
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Pineda-Castañeda HM, Insuasty-Cepeda DS, Niño-Ramírez VA, Curtidor H, Rivera-Monroy ZJ. Designing Short Peptides: A Sisyphean Task? CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999200910094034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Over the last few years, short peptides have become a powerful tool in basic and
applied research, with different uses like diagnostic, antimicrobial peptides, human health
promoters or bioactive peptides, therapeutic treatments, templates for peptidomimetic design,
and peptide-based vaccines. In this endeavor, different approaches and technologies
have been explored, such as bioinformatics, large-scale peptide synthesis, omics sciences,
structure-activity relationship studies, and a biophysical approach, among others, seeking to
obtain the shortest sequence with the best activity. The advantage of short peptides lies in
their stability, ease of production, safety, and low cost. There are many strategies for designing
short peptides with biomedical and industrial applications (targeting the structure, length,
charge, or polarity) or as a starting point for improving their properties (sequence data base,
de novo sequences, templates, or organic scaffolds). In peptide design, it is necessary to keep in mind factors
such as the application (peptidomimetic, immunogen, antimicrobial, bioactive, or protein-protein interaction
inhibitor), the expected target (membrane cell, nucleus, receptor proteins, or immune system), and particular
characteristics (shorter, conformationally constrained, cycled, charged, flexible, polymerized, or pseudopeptides).
This review summarizes the different synthetic approaches and strategies used to design new peptide analogs,
highlighting the achievements, constraints, and advantages of each.
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Affiliation(s)
| | | | - Víctor A. Niño-Ramírez
- Chemistry Department, Sciences Faculty, Universidad Nacional de Colombia, Bogota, Colombia
| | | | - Zuly J. Rivera-Monroy
- Chemistry Department, Sciences Faculty, Universidad Nacional de Colombia, Bogota, Colombia
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13
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Insuasty-Cepeda DS, Barragán-Cárdenas AC, Ochoa-Zarzosa A, López-Meza JE, Fierro-Medina R, García-Castañeda JE, Rivera-Monroy ZJ. Peptides Derived from (RRWQWRMKKLG) 2-K- Ahx Induce Selective Cellular Death in Breast Cancer Cell Lines through Apoptotic Pathway. Int J Mol Sci 2020; 21:E4550. [PMID: 32604743 PMCID: PMC7352952 DOI: 10.3390/ijms21124550] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 12/20/2022] Open
Abstract
The effect on the cytotoxicity against breast cancer cell lines of the substitution of 26Met residue in the sequence of the Bovine Lactoferricin-derived dimeric peptide LfcinB (20-30)2: (20RRWQWRMKKLG30)2-K-Ahx with amino acids of different polarity was evaluated. The process of the synthesis of the LfcinB (20-30)2 analog peptides was similar to the original peptide. The cytotoxic assays showed that some analog peptides exhibited a significant cytotoxic effect against breast cancer cell lines HTB-132 and MCF-7, suggesting that the substitution of the Met with amino acids of a hydrophobic nature drastically enhances its cytotoxicity against HTB-132 and MCF-7 cells, reaching IC50 values up to 6 µM. In addition, these peptides have a selective effect, since they exhibit a lower cytotoxic effect on the non-tumorigenic cell line MCF-12. Interestingly, the cytotoxic effect is fast (90 min) and is maintained for up to 48 h. Additionally, through flow cytometry, it was found that the obtained dimeric peptides generate cell death through the apoptosis pathway and do not compromise the integrity of the cytoplasmic membrane, and there are intrinsic apoptotic events involved. These results show that the obtained peptides are extremely promising molecules for the future development of drugs for use against breast cancer.
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Affiliation(s)
- Diego Sebastián Insuasty-Cepeda
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia; (D.S.I.-C.); (A.C.B.-C.); (R.F.-M.)
| | - Andrea Carolina Barragán-Cárdenas
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia; (D.S.I.-C.); (A.C.B.-C.); (R.F.-M.)
| | - Alejandra Ochoa-Zarzosa
- Facultad de Medicina Veterinaria y Zootecnia, Centro Multidisciplinario de Estudios en Biotecnología, Universidad Michoacana de San Nicolás de Hidalgo, Km 9.5 Carretera Morelia-Zinapécuaro, Posta Veterinaria, P.C. 58893 Morelia, Michoacán, Mexico; (A.O.-Z.); (J.E.L.-M.)
| | - Joel E. López-Meza
- Facultad de Medicina Veterinaria y Zootecnia, Centro Multidisciplinario de Estudios en Biotecnología, Universidad Michoacana de San Nicolás de Hidalgo, Km 9.5 Carretera Morelia-Zinapécuaro, Posta Veterinaria, P.C. 58893 Morelia, Michoacán, Mexico; (A.O.-Z.); (J.E.L.-M.)
| | - Ricardo Fierro-Medina
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia; (D.S.I.-C.); (A.C.B.-C.); (R.F.-M.)
| | - Javier Eduardo García-Castañeda
- Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá Carrera 45 No 26-85, Building 450, Bogotá 11321, Colombia;
| | - Zuly Jenny Rivera-Monroy
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Carrera 45 No 26-85, Building 451, office 409, Bogotá 11321, Colombia; (D.S.I.-C.); (A.C.B.-C.); (R.F.-M.)
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14
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Ardila-Chantré N, Hernández-Cardona AK, Pineda-Castañeda HM, Estupiñan-Torres SM, Leal-Castro AL, Fierro-Medina R, Rivera-Monroy ZJ, García-Castañeda JE. Short peptides conjugated to non-peptidic motifs exhibit antibacterial activity. RSC Adv 2020; 10:29580-29586. [PMID: 35521126 PMCID: PMC9055962 DOI: 10.1039/d0ra05937d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/30/2020] [Indexed: 11/21/2022] Open
Abstract
Short peptides derived from buforin and lactoferricin B were conjugated with other antimicrobial molecules of different chemical natures.
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15
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Barragán-Cárdenas A, Urrea-Pelayo M, Niño-Ramírez VA, Umaña-Pérez A, Vernot JP, Parra-Giraldo CM, Fierro-Medina R, Rivera-Monroy Z, García-Castañeda J. Selective cytotoxic effect against the MDA-MB-468 breast cancer cell line of the antibacterial palindromic peptide derived from bovine lactoferricin. RSC Adv 2020; 10:17593-17601. [PMID: 35515633 PMCID: PMC9053608 DOI: 10.1039/d0ra02688c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/25/2020] [Indexed: 01/09/2023] Open
Abstract
The cytotoxic effect against the breast cancer cell line MDA-MB-468 of the palindromic peptide LfcinB (21–25)Pal: 1RWQWRWQWR9 and its analogous peptides, obtained via alanine scanning, was evaluated. The results indicate that the palindromic peptide exhibited a concentration-dependent cytotoxic effect against this cell line. The cytotoxic effect of the palindromic peptide was fast and selective and was sustained for up to 48 h of treatment. MDA-MB-468 cells treated with the palindromic peptide exhibited severe cellular damage, acquiring rounded forms and shrinkage, a behavior typical of apoptotic events. The analogous peptides exhibited fewer cytotoxic effects than the original palindromic peptide, suggesting that the substitution of any amino acid with alanine diminishes the cytotoxic effect. The Arg and Trp residues proved to be the most relevant for the cytotoxic effect; the analogous peptides with substitutions of Trp with Ala did not induce a change in cellular morphology, while analogous peptides with substitutions of Arg or Gln with Ala induced cellular damage. Also, neither the palindromic peptide nor its analogues exerted a significant cytotoxic effect on normal fibroblasts, indicating that the peptides had a selective cytotoxic effect on cancerous cells. The peptide LfcinB (21–25)Pal, and its analogues exhibited antibacterial activity against E. coli and S. aureus strains and a selective cytotoxic effect against the breast cancer cell line MDA-MB-468. The cytotoxic effect against the breast cancer cell line MDA-MB-468 of the palindromic peptide LfcinB (21–25)Pal: 1RWQWRWQWR9 and its analogous peptides, obtained via alanine scanning, was evaluated.![]()
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Affiliation(s)
| | | | | | | | - Jean Paul Vernot
- Facultad de Medicina
- Departamento de Ciencias fisiológicas
- Universidad Nacional de Colombia
- 11321 Bogotá
- Colombia
| | | | | | - Zuly Rivera-Monroy
- Facultad de Ciencias
- Universidad Nacional de Colombia
- 11321 Bogotá
- Colombia
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16
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Qin Y, Qin ZD, Chen J, Cai CG, Li L, Feng LY, Wang Z, Duns GJ, He NY, Chen ZS, Luo XF. From Antimicrobial to Anticancer Peptides: The Transformation of Peptides. Recent Pat Anticancer Drug Discov 2019; 14:70-84. [PMID: 30663573 DOI: 10.2174/1574892814666190119165157] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 12/05/2018] [Accepted: 01/10/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Antimicrobial peptides play an important role in the innate immune system. Possessing broad-spectrum antibacterial activity, antimicrobial peptides can quickly treat and kill various targets, including gram-negative bacteria, gram-positive bacteria, fungi, and tumor cells. OBJECTIVE An overview of the state of play with regard to the research trend of antimicrobial peptides in recent years and the situation of targeting tumor cells, and to make statistical analysis of the patents related to anticancer peptides published in recent years, is important both from toxicological and medical tumor therapy point of view. METHODS Based on the Science Citation Index Expanded version, the Derwent Innovation Index and Innography as data sources, the relevant literature and patents concerning antimicrobial peptides and anticancer peptides were analyzed through the Thomson Data Analyzer. Results of toxicologic and pharmacologic studies that brought to the development of patents for methods to novel tumor drugs were analyzed and sub-divided according to the specific synthesis of anticancer peptides. RESULTS The literature and patent search data show that the research and development of global antimicrobial peptides and anticancer peptides has been in an incremental mode. Growing patent evidence indicate that bioinformatics technology is a valuable strategy to modify, synthesize or recombine existing antimicrobial peptides to obtain tumor drugs with high activity, low toxicity and multiple targets. CONCLUSION These findings may have important clinical implications for cancer treatment, especially in patients with conditions that are not currently treatable by other drugs, or that are resistant to existing cancer drugs.
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Affiliation(s)
- Yuan Qin
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China.,Hunan Key Laboratory of Green Chemistry and Application of Biological Nanotechnology, Hunan University of Technology, Zhuzhou, 412007, China
| | - Zuo D Qin
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China
| | - Jing Chen
- College of Business Administration, Hunan University, Changsha, 410082, China
| | - Che G Cai
- Medical Research Institute, Wuhan University, Wuhan, Hubei 430071, China
| | - Ling Li
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China
| | - Lu Y Feng
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China
| | - Zheng Wang
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China
| | - Gregory J Duns
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China
| | - Nong Y He
- Hunan Key Laboratory of Green Chemistry and Application of Biological Nanotechnology, Hunan University of Technology, Zhuzhou, 412007, China
| | - Zhe S Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States
| | - Xiao F Luo
- College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou, Hunan Province 425000, China
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17
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Biological characterization of omw1 and omw2: antimicrobial peptides derived from omwaprin. 3 Biotech 2019; 9:295. [PMID: 31321199 DOI: 10.1007/s13205-019-1801-x] [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: 11/26/2018] [Accepted: 06/07/2019] [Indexed: 01/31/2023] Open
Abstract
Two cationic antimicrobial peptides (AMP) were designed based on the snake venom peptide, omwaprin, hypothesized to be shorter, cost effective and potent. Omw1 and omw2 demonstrated significant broad-spectrum antimicrobial activity against standard and clinical strains at a MIC ranging from 15.625 to 250 µg/ml for omw1 and from 31.3 to 500 µg/ml for omw2. Time-kill kinetics revealed that omw1 caused complete lysis of E. coli ATCC 25922 at 1× MIC and S. aureus ATCC 25923 at 2× MIC after 40 and 60 min of incubation, respectively. Membranolytic activity of the peptides was assessed by propidium iodide stain, where red fluorescence was observed in cells treated with the peptides compared to untreated cells. Notable morphological changes were observed in the microbes treated with peptides, as revealed by scanning electron micrographs. Omw1 and omw2 were also potent to inhibit the formation as well as dispersal of matured biofilms at 1/2× MIC against clinical strain, C. albicans. Further, minimal hemolytic activity demonstrated by both the peptides at microbicidal concentration against human erythrocytes proves that the designed peptides were less toxic and potent antimicrobial agents which could be considered for further studies with animal models to affirm its efficiency.
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18
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Román JT, Fuenmayor CA, Zuluaga Dominguez CM, Clavijo-Grimaldo D, Acosta M, García-Castañeda JE, Fierro-Medina R, Rivera-Monroy ZJ. Pullulan nanofibers containing the antimicrobial palindromic peptide LfcinB (21-25) Pal obtained via electrospinning. RSC Adv 2019; 9:20432-20438. [PMID: 35514725 PMCID: PMC9065569 DOI: 10.1039/c9ra03643a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/24/2019] [Indexed: 01/02/2023] Open
Abstract
Electrospinning technology is useful for making ultrafine drug-eluting fibers for the clinical treatment of wounds. We show the incorporation of an antimicrobial LfcinB-derived peptide into Pullulan nanofibers. The palindromic peptide LfcinB (21-25)Pal: RWQWRWQWR was synthesized, purified, and characterized by means of the RP-HPLC and MALDI-TOF MS methods. The peptide's antibacterial activity against the E. coli ATCC 25922 strain was evaluated, and the peptide LfcinB (20-25)Pal exhibited significant antibacterial activity. Nanofibers were obtained by electrospinning a Pullulan or Pullulan-LfcinB (21-25)Pal solution. The obtained nanofibers were characterized via microscopy (AFM and SEM) and RP-HPLC chromatography. The peptide incorporation efficiency was 31%. The Pullulan-LfcinB (21-25)Pal nanofibers were soluble in water, and the peptide was liberated immediately. The Pullulan-LfcinB (21-25)Pal nanofibers exhibited the same antibacterial activity against E. coli strain as the free peptide LfcinB (21-25)Pal. The results suggest that Pullulan-LfcinB (21-25)Pal nanofibers could be considered for designing and developing antibacterial wound dressings.
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Affiliation(s)
- Julieth Tatiana Román
- Science Faculty, Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia +57 1 3165000 ext. 14436
| | - Carlos Alberto Fuenmayor
- Instituto de Ciencia y Tecnología de alimentos (ICTA), Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia
| | - Carlos Mario Zuluaga Dominguez
- Agricultural Sciences Faculty, Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia
| | - Dianney Clavijo-Grimaldo
- Medicine Faculty, Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia
| | - Martha Acosta
- Servicio Nacional de Aprendizaje (SENA) Technopark Calle 54 No. 10-39 Zip code 110231 Bogotá Colombia
| | - Javier Eduardo García-Castañeda
- Science Faculty, Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia +57 1 3165000 ext. 14436
| | - Ricardo Fierro-Medina
- Science Faculty, Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia +57 1 3165000 ext. 14436
| | - Zuly Jenny Rivera-Monroy
- Science Faculty, Universidad Nacional de Colombia Av. carrera 30 no. 45-03 Bogotá Zip code 111321 Colombia +57 1 3165000 ext. 14436
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Synthetic Peptide Purification via Solid-Phase Extraction with Gradient Elution: A Simple, Economical, Fast, and Efficient Methodology. Molecules 2019; 24:molecules24071215. [PMID: 30925720 PMCID: PMC6479624 DOI: 10.3390/molecules24071215] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 11/16/2022] Open
Abstract
A methodology was implemented for purifying peptides in one chromatographic run via solid-phase extraction (SPE), reverse phase mode (RP), and gradient elution, obtaining high-purity products with good yields. Crude peptides were analyzed by reverse phase high performance liquid chromatography and a new mathematical model based on its retention time was developed in order to predict the percentage of organic modifier in which the peptide will elute in RP-SPE. This information was used for designing the elution program of each molecule. It was possible to purify peptides with different physicochemical properties, showing that this method is versatile and requires low solvent consumption, making it the least polluting one. Reverse phase-SPE can easily be routinely implemented. It is an alternative to enrich and purified synthetic or natural molecules.
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Vargas-Casanova Y, Rodríguez-Mayor AV, Cardenas KJ, Leal-Castro AL, Muñoz-Molina LC, Fierro-Medina R, Rivera-Monroy ZJ, García-Castañeda JE. Synergistic bactericide and antibiotic effects of dimeric, tetrameric, or palindromic peptides containing the RWQWR motif against Gram-positive and Gram-negative strains. RSC Adv 2019; 9:7239-7245. [PMID: 35519960 PMCID: PMC9061098 DOI: 10.1039/c9ra00708c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 02/21/2019] [Indexed: 01/12/2023] Open
Abstract
Dimeric and tetrameric peptides derived from LfcinB (20-25): RRWQWR, LfcinB (20-30): RRWQWRMKKLG, LfcinB (17-31): FKARRWQWRMKKLGA, or the palindromic sequence LfcinB (21-25)Pal: RWQWRWQWR were obtained by means of the SPPS-Fmoc/tBu methodology. The antibacterial activity of these molecules was evaluated against Escherichia coli (ATCC 25922 and ATCC 11775), Staphylococcus aureus (ATCC 25923), Enterococcus faecalis (ATCC 29212), and Pseudomonas aeruginosa (ATCC 27853). The dimer LfcinB (20-25)2: (RRWQWR)2K-Ahx, the tetramer LfcinB (20-25)4: (RRWQWR)4K2-Ahx2-C2, and the palindromic sequence LfcinB (21-25)Pal exhibited the highest antibacterial activity against the tested bacterial strains. In all cases, the antibacterial activity was dependent on peptide concentration. The polyvalent molecules LfcinB (20-25)2 and LfcinB (20-25)4 exhibited bacteriostatic and bactericidal activity against E. coli, P. aeruginosa, and S. aureus strains; additionally, this dimer and this tetramer combined with ciprofloxacin exhibited a synergistic antibacterial effect against E. coli ATCC 25922 and P. aeruginosa, respectively. Furthermore, the peptides LfcinB (20-30)4, LfcinB (20-25)4, and LfcinB (21-25)Pal combined with vancomycin exhibited a synergistic antibacterial effect against S. aureus and E. faecalis, respectively. This study showed that polyvalent peptides derived from LfcinB exhibit significant antibacterial activity, suggesting that these peptides could have a therapeutic application. Furthermore, our results suggest that polyvalent peptide synthesis could be considered as an innovative and viable strategy for obtaining promising antimicrobial molecules.
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Affiliation(s)
- Yerly Vargas-Casanova
- Biotechnology Institute, Universidad Nacional de Colombia Carrera 45 No 26-85 Bogotá 11321 Colombia
| | | | - Karen Johanna Cardenas
- Pharmacy Department, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 450, Office 213 Bogotá 11321 Colombia
| | - Aura Lucía Leal-Castro
- Medicine Faculty, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 450, Office 213 Bogotá 11321 Colombia
| | | | - Ricardo Fierro-Medina
- Chemistry Department, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 450, Office 213 Bogotá 11321 Colombia
| | - Zuly Jenny Rivera-Monroy
- Chemistry Department, Universidad Nacional de Colombia Carrera 45 No 26-85, Building 450, Office 213 Bogotá 11321 Colombia
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22
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Liu S, Aweya JJ, Zheng L, Wang F, Zheng Z, Zhong M, Lun J, Zhang Y. A Litopenaeus vannamei Hemocyanin-Derived Antimicrobial Peptide (Peptide B11) Attenuates Cancer Cells' Proliferation. Molecules 2018; 23:molecules23123202. [PMID: 30563041 PMCID: PMC6321297 DOI: 10.3390/molecules23123202] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 11/15/2018] [Accepted: 12/02/2018] [Indexed: 01/01/2023] Open
Abstract
Antimicrobial peptides play important roles in the immune response to pathogens and tumor cells; for this reason, they are being exploited for therapeutic use. In this study, we describe a Litopenaeus vannamei hemocyanin-derived peptide, denoted B11, which shares similar features with other anticancer peptides and attenuates the proliferation of cancer cells. Cell viability assay revealed that B11 significantly inhibited the proliferation of human cervical (HeLa), human hepatocellular carcinoma (HepG2), and human esophageal cancer (EC109) cancer cell lines, but not normal liver cell lines (T-antigen-immortalized human liver epithelial (THLE) cells or THLE-3), by inducing morphological changes, nuclear condensation, and margination, features which are indicative of apoptosis. Besides, peptide B11-induced apoptosis was confirmed by isothiocyanate-labeled Annexin V/propidium iodide (Annexin V-FITC/PI) double staining of HeLa cells. Moreover, cell uptake studies, confocal microscopy, and Western blot analysis revealed that rhodamine-labeled B11 permeated HeLa cells and localized to the mitochondria, causing mitochondria dysfunction through lost mitochondrial membrane potential, which consequently triggered the induction of apoptosis. Increased expression levels of caspase-9, caspase-3, and Bax (Bcl-2-associated X) proteins, coupled with a decrease in Bcl-2 (B-cell lymphoma 2) protein, confirmed that peptide B11 induced apoptosis via the mitochondrial pathway. Thus, the hemocyanin-derived peptide, B11, inhibits the proliferation of cancer cells by causing mitochondrial dysfunction and inducing apoptotic cell death, for which reason it could be explored as an anticancer peptide.
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Affiliation(s)
- Shangjie Liu
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Jude Juventus Aweya
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Liyuan Zheng
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Fan Wang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Zhou Zheng
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Mingqi Zhong
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Jingsheng Lun
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
| | - Yueling Zhang
- Department of Biology and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China.
- STU-UMT Joint Shellfish Research Laboratory, Shantou University, Shantou 515063, China.
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Sun C, Li Y, Cao S, Wang H, Jiang C, Pang S, Hussain MA, Hou J. Antibacterial Activity and Mechanism of Action of Bovine Lactoferricin Derivatives with Symmetrical Amino Acid Sequences. Int J Mol Sci 2018; 19:E2951. [PMID: 30262770 PMCID: PMC6213309 DOI: 10.3390/ijms19102951] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 08/29/2018] [Accepted: 09/10/2018] [Indexed: 01/05/2023] Open
Abstract
In recent years, the overuse of antibiotics has become very serious. Many pathogenic bacteria have become resistant to them, with serious potential health consequences. Thus, it is urgent that we develop new antibiotic drugs. Antimicrobial peptides (AMPs) are important endogenous antibacterial molecules that contribute to immunity. Most have spectral antibacterial properties and do not confer drug resistance. In this paper, an 11-residue peptide (LFcinB18⁻28) with a sequence of KCRRWQWRMKK was modified by amino acid substitution to form a symmetrical amino acid sequence. The antibacterial activities and mechanisms of action of engineered peptides including KW-WK (KWRRWQWRRWK), FP-PF (FPRRWQWRRPF), FW-WF (FWRRWQWRRWF), and KK-KK (KKRRWQWRRKK) were investigated. The four engineered peptides could more effectively inhibit bacteria than the original peptide, LFcinB18⁻28. This suggested that a symmetrical amino acid sequence might enhance the antibacterial activity of AMPs. However, only peptides KW-WK, FP-PF, and KK-KK were safe; FW-WF displayed hemolytic activity. The engineered peptides shared cationic and amphipathic characteristics that facilitated interactions with the anionic microbial membranes, leading to disruption of membrane integrity and permeabilizing microbial membranes, resulting in cell death. Therefore, a symmetrical amino acid sequence and related structural parameters offer an alternative approach to the design of AMPs. This will provide a scientific basis for the design and synthesis of new AMPs.
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Affiliation(s)
- Changbao Sun
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Yingying Li
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Songsong Cao
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Haimei Wang
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Chenggang Jiang
- Harbin Veterinary Research Institute, CAAS, Harbin 150001, China.
| | - Shiyue Pang
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Muhammad Altaf Hussain
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Juncai Hou
- Key Laboratory of Dairy Science, Northeast Agricultural University, Harbin 150030, China.
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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24
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Effect of Polyvalence on the Antibacterial Activity of a Synthetic Peptide Derived from Bovine Lactoferricin against Healthcare-Associated Infectious Pathogens. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5252891. [PMID: 29984236 PMCID: PMC6015718 DOI: 10.1155/2018/5252891] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/07/2018] [Accepted: 04/11/2018] [Indexed: 11/29/2022]
Abstract
Antimicrobial peptides (AMPs) are gaining interest as potential therapeutic agents. Peptides derived from bovine lactoferricin B (LfcinB) have been reported to exhibit antimicrobial activity, and the LfcinB RRWQWR sequence is the smallest known motif that exhibits antibacterial and cytotoxic activity. Our goal was to examine the effect of multicopy arrangements of the RRWQWR motif, on its antibacterial activity against healthcare-associated infections (HCAIs). Linear and branched peptides containing the RRWQWR motif were generated using solid phase peptide synthesis-Fmoc/tBu methodology, purified, and characterized using reverse phase-high performance liquid chromatography and matrix-assisted laser desorption/ionization time of flight mass spectrometry. For each peptide, the antibacterial activity against Staphylococcus aureus (ATCC 25923 and 33591 strains) and Klebsiella pneumoniae (ATCC 13883 and 700603 strains) was assessed by measuring the minimum inhibitory and the minimum bactericidal concentrations, in the exponential phase. Cells were observed by scanning electron microscopy, and the hemolytic activity of the peptides was assessed. The overall results demonstrate that, compared to linear analogues, polyvalent presentation of the RRWQWR motif enhances its antibacterial activity against both Gram-negative and Gram-positive bacteria even on resistant strain.
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25
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Vega SC, Martínez DA, Chalá MDS, Vargas HA, Rosas JE. Design, Synthesis and Evaluation of Branched RRWQWR-Based Peptides as Antibacterial Agents Against Clinically Relevant Gram-Positive and Gram-Negative Pathogens. Front Microbiol 2018; 9:329. [PMID: 29551999 PMCID: PMC5840262 DOI: 10.3389/fmicb.2018.00329] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/12/2018] [Indexed: 12/19/2022] Open
Abstract
Multidrug resistance of pathogenic bacteria has become a public health crisis that requires the urgent design of new antibacterial drugs such as antimicrobial peptides (AMPs). Seeking to obtain new, lactoferricin B (LfcinB)-based synthetic peptides as viable early-stage candidates for future development as AMPs against clinically relevant bacteria, we designed, synthesized and screened three new cationic peptides derived from bovine LfcinB. These peptides contain at least one RRWQWR motif and differ by the copy number (monomeric, dimeric or tetrameric) and structure (linear or branched) of this motif. They comprise a linear palindromic peptide (RWQWRWQWR), a dimeric peptide (RRWQWR)2KAhx and a tetrameric peptide (RRWQWR)4K2Ahx2C2. They were screened for antibacterial activity against Enterococcus faecalis (ATCC 29212 and ATCC 51575 strains), Pseudomonas aeruginosa (ATCC 10145 and ATCC 27853 strains) and clinical isolates of two Gram-positive bacteria (Enterococcus faecium and Staphylococcus aureus) and two Gram-negative bacteria (Klebsiella pneumoniae and Pseudomonas aeruginosa). All three peptides exhibited greater activity than did the reference peptide, LfcinB (17-31), which contains a single linear RRWQWR motif. Against the ATCC reference strains, the three new peptides exhibited minimum inhibitory concentration (MIC50) values of 3.1-198.0 μM and minimum bactericidal concentration (MBC) values of 25-200 μM, and against the clinical isolates, MIC50 values of 1.6-75.0 μM and MBC values of 12.5-100 μM. However, the tetrameric peptide was also found to be strongly hemolytic (49.1% at 100 μM). Scanning Electron Microscopy (SEM) demonstrated that in the dimeric and tetrameric peptides, the RRWQWR motif is exposed to the pathogen surface. Our results may inform the design of new, RRWQWR-based AMPs.
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Affiliation(s)
- Sandra C Vega
- Department of Pharmacy, Faculty of Science, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Diana A Martínez
- Department of Pharmacy, Faculty of Science, Universidad Nacional de Colombia, Bogotá, Colombia
| | - María Del S Chalá
- Laboratory of Public Health, Secretaria Distrital de Salud, Bogotá, Colombia
| | - Hernán A Vargas
- Laboratory of Public Health, Secretaria Distrital de Salud, Bogotá, Colombia
| | - Jaiver E Rosas
- Department of Pharmacy, Faculty of Science, Universidad Nacional de Colombia, Bogotá, Colombia
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26
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Hao Y, Yang N, Teng D, Wang X, Mao R, Wang J. A review of the design and modification of lactoferricins and their derivatives. Biometals 2018; 31:331-341. [PMID: 29455278 DOI: 10.1007/s10534-018-0086-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 02/14/2018] [Indexed: 11/28/2022]
Abstract
Lactoferricin (Lfcin), a multifunction short peptide with a length of 25 residues, is derived from the whey protein lactoferrin by acidic pepsin hydrolysis. It has potent nutritional enhancement, antimicrobial, anticancer, antiviral, antiparasitic, and anti-inflammatory activities. This review describes the research advantages of the above biological functions, with attention to the molecular design and modification of Lfcin. In this examination of design and modification studies, research on the identification of Lfcin active derivatives and crucial amino acid residues is also reviewed. Many strategies for Lfcin optimization have been studied in recent decades, but we mainly introduce chemical modification, cyclization, chimera and polymerization of this peptide. Modifications such as incorporation of D-amino acids, acetylation and/or amidation could effectively improve the activity and stability of these compounds. Due to their wide array of bio-functions and applications, Lfcins have great potential to be developed as biological agents with multiple functions involved with nutritional enhancement, as well as disease preventive and therapeutic effects.
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Affiliation(s)
- Ya Hao
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,R & D Center, Beijing Shengtai Clouds Bio-Technology, Inc., Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Na Yang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Da Teng
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Xiumin Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Ruoyu Mao
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China.,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China
| | - Jianhua Wang
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture, Beijing, 100081, People's Republic of China. .,Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing, 100081, People's Republic of China.
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27
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The Road from Host-Defense Peptides to a New Generation of Antimicrobial Drugs. Molecules 2018; 23:molecules23020311. [PMID: 29389911 PMCID: PMC6017364 DOI: 10.3390/molecules23020311] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/23/2018] [Accepted: 01/30/2018] [Indexed: 01/28/2023] Open
Abstract
Host-defense peptides, also called antimicrobial peptides (AMPs), whose protective action has been used by animals for millions of years, fulfill many requirements of the pharmaceutical industry, such as: (1) broad spectrum of activity; (2) unlike classic antibiotics, they induce very little resistance; (3) they act synergically with conventional antibiotics; (4) they neutralize endotoxins and are active in animal models. However, it is considered that many natural peptides are not suitable for drug development due to stability and biodisponibility problems, or high production costs. This review describes the efforts to overcome these problems and develop new antimicrobial drugs from these peptides or inspired by them. The discovery process of natural AMPs is discussed, as well as the development of synthetic analogs with improved pharmacological properties. The production of these compounds at acceptable costs, using different chemical and biotechnological methods, is also commented. Once these challenges are overcome, a new generation of versatile, potent and long-lasting antimicrobial drugs is expected.
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28
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Galdiero S, Gomes PAC. Peptide-Based Drugs and Drug Delivery Systems. Molecules 2017; 22:molecules22122185. [PMID: 29292757 PMCID: PMC6149859 DOI: 10.3390/molecules22122185] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 12/26/2022] Open
Affiliation(s)
- Stefania Galdiero
- Department of Pharmacy, School of Medicine, University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy.
- Interuniversity Research Centre on Bioactive Peptides (CIRPEB), University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy.
| | - Paula A C Gomes
- LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal.
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29
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Lara Carrillo JA, Fierro Medina R, Manríquez Rocha J, Bustos Bustos E, Insuasty Cepeda DS, García Castañeda JE, Rivera Monroy ZJ. Design, Synthesis, and Use of Peptides Derived from Human Papillomavirus L1 Protein for the Modification of Gold Electrode Surfaces by Self-Assembled Monolayers. Molecules 2017; 22:molecules22111970. [PMID: 29135944 PMCID: PMC6150238 DOI: 10.3390/molecules22111970] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 11/10/2017] [Accepted: 11/10/2017] [Indexed: 12/18/2022] Open
Abstract
In order to obtain gold electrode surfaces modified with Human Papillomavirus L1 protein (HPV L1)-derived peptides, two sequences, SPINNTKPHEAR and YIK, were chosen. Both have been recognized by means of sera from patients infected with HPV. The molecules, Fc-Ahx-SPINNTKPHEAR, Ac–C–Ahx-(Fc)KSPINNTKPHEAR, Ac–C–Ahx-SPINNTKPHEAR(Fc)K, C–Ahx–SPINNTKPHEAR, and (YIK)2–Ahx–C, were designed, synthesized, and characterized. Our results suggest that peptides derived from the SPINNTKPHEAR sequence, containing ferrocene and cysteine residues, are not stable and not adequate for electrode surface modification. The surface of polycrystalline gold electrodes was modified with the peptides C-Ahx-SPINNTKPHEAR or (YIK)2-Ahx-C through self-assembly. The modified polycrystalline gold electrodes were characterized via infrared spectroscopy and electrochemical measurements. The thermodynamic parameters, surface coverage factor, and medium pH effect were determined for these surfaces. The results indicate that surface modification depends on the peptide sequence (length, amino acid composition, polyvalence, etc.). The influence of antipeptide antibodies on the voltammetric response of the modified electrode was evaluated by comparing results obtained with pre-immune and post-immune serum samples.
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Affiliation(s)
- John Alejandro Lara Carrillo
- Department of Pharmacy, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
| | - Ricardo Fierro Medina
- Department of Chemistry, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 334, 11321 Bogotá, Colombia.
| | - Juan Manríquez Rocha
- Department of Research, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., Parque Tecnológico Querétaro, Sanfandila, Pedro Escobedo, 76703 Querétaro, Mexico.
| | - Erika Bustos Bustos
- Department of Research, Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., Parque Tecnológico Querétaro, Sanfandila, Pedro Escobedo, 76703 Querétaro, Mexico.
| | - Diego Sebastián Insuasty Cepeda
- Department of Chemistry, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 334, 11321 Bogotá, Colombia.
| | - Javier Eduardo García Castañeda
- Department of Pharmacy, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
| | - Zuly Jenny Rivera Monroy
- Department of Chemistry, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 334, 11321 Bogotá, Colombia.
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30
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Vargas Casanova Y, Rodríguez Guerra JA, Umaña Pérez YA, Leal Castro AL, Almanzar Reina G, García Castañeda JE, Rivera Monroy ZJ. Antibacterial Synthetic Peptides Derived from Bovine Lactoferricin Exhibit Cytotoxic Effect against MDA-MB-468 and MDA-MB-231 Breast Cancer Cell Lines. Molecules 2017; 22:E1641. [PMID: 28961215 PMCID: PMC6151437 DOI: 10.3390/molecules22101641] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 09/27/2017] [Accepted: 09/28/2017] [Indexed: 12/20/2022] Open
Abstract
Linear, dimeric, tetrameric, and cyclic peptides derived from lactoferricin B, containing the RRWQWR motif, were designed, synthesized, purified, and characterized using RP-HPLC chromatography and MALDI-TOF mass spectrometry. The antibacterial activity of the designed peptides against E. coli (ATCC 11775 and 25922) and their cytotoxic effect against MDA-MB-468 and MDA-MB-231 breast cancer cell lines were evaluated. Dimeric and tetrameric peptides showed higher antibacterial activity in both bacteria strains than linear peptides. The dimeric peptide (RRWQWR)₂K-Ahx exhibited the highest antibacterial activity against the tested bacterial strains. Furthermore, the peptides with high antibacterial activity exhibited significant cytotoxic effect against the tested breast cancer cell lines. This cytotoxic effect was fast and dependent on the peptide concentration. The tetrameric molecule containing RRWQWR motif has an optimal cytotoxic effect at a concentration of 22 µM. The evaluated dimeric and tetrameric peptides could be considered as candidates for developing new therapeutic agents against breast cancer. Polyvalence of linear sequences could be considered as a novel and versatile strategy for obtaining molecules with high anticancer activity.
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Affiliation(s)
- Yerly Vargas Casanova
- Biotechnology Institute, Universidad Nacional de Colombia, Carrera 45 No 26-85, 11321 Bogotá, Colombia.
| | - Jorge Antonio Rodríguez Guerra
- Pharmacy Department, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
| | - Yadi Adriana Umaña Pérez
- Chemistry Department, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
| | - Aura Lucía Leal Castro
- Medicine Faculty, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
| | | | - Javier Eduardo García Castañeda
- Pharmacy Department, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
| | - Zuly Jenny Rivera Monroy
- Chemistry Department, Universidad Nacional de Colombia, Carrera 45 No 26-85, Building 450, Office 213, 11321 Bogotá, Colombia.
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