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Fernandez J, Acosta G, Pulido D, Malý M, Copa-Patiño JL, Soliveri J, Royo M, Gómez R, Albericio F, Ortega P, de la Mata FJ. Carbosilane Dendron-Peptide Nanoconjugates as Antimicrobial Agents. Mol Pharm 2019; 16:2661-2674. [PMID: 31009225 DOI: 10.1021/acs.molpharmaceut.9b00222] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Over the last decades, multidrug-resistant bacteria have emerged and spread, increasing the number of bacteria, against which commonly used antibiotics are no longer effective. It has become a serious public health problem whose solution requires medical research in order to explore novel effective antimicrobial molecules. On the one hand, antimicrobial peptides (AMPs) are regarded as good alternatives because of their generally broad-spectrum activities, but sometimes they can be easily degraded by the organism or be toxic to animal cells. On the other hand, cationic carbosilane dendrons, whose focal point can be functionalized in many different ways, have also shown good antimicrobial activity. In this work, we synthetized first- and second-generation cationic carbosilane dendrons with a maleimide molecule on their focal point, enabling their functionalization with three different AMPs. After different microbiology studies, we found an additive effect between first-generation dendron and AMP3 whose study reveals three interesting effects: (i) bacteria aggregation due to AMP3, which could facilitate bacteria detection or even contribute to antibacterial activity by preventing host cell attack, (ii) bacteria disaggregation capability of second-generation cationic dendrons, and (iii) a higher AMP3 aggregation ability when dendrons were added previously to peptide treatment. These compounds and their different effects observed over bacteria constitute an interesting system for further mechanism studies.
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Affiliation(s)
- Jael Fernandez
- Instituto de Investigación Química "Andrés M. del Río" (IQAR) , UAH , 28801 Alcalá de Henares , Spain.,Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS , 28034 Madrid , Spain
| | - Gerardo Acosta
- Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Deparment of Organic and Inorganic Chemistry , University of Barcelona , 08028 Barcelona , Spain.,Institute for Advanced Chemistry of Catalonia-CSIC , 08034 Barcelona , Spain
| | - Daniel Pulido
- Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Institute for Advanced Chemistry of Catalonia-CSIC , 08034 Barcelona , Spain
| | - Marek Malý
- Faculty of Science , J. E. Purkinje University , České mládeže 8 , 400 96 Ústí nad Labem , Czech Republic
| | | | | | - Miriam Royo
- Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Institute for Advanced Chemistry of Catalonia-CSIC , 08034 Barcelona , Spain
| | - Rafael Gómez
- Instituto de Investigación Química "Andrés M. del Río" (IQAR) , UAH , 28801 Alcalá de Henares , Spain.,Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS , 28034 Madrid , Spain
| | - Fernando Albericio
- Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Deparment of Organic and Inorganic Chemistry , University of Barcelona , 08028 Barcelona , Spain.,Institute for Advanced Chemistry of Catalonia-CSIC , 08034 Barcelona , Spain.,School of Chemistry and Physics , University of KwaZulu-Natal , 4001 Durban , South Africa
| | - Paula Ortega
- Instituto de Investigación Química "Andrés M. del Río" (IQAR) , UAH , 28801 Alcalá de Henares , Spain.,Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS , 28034 Madrid , Spain
| | - F Javier de la Mata
- Instituto de Investigación Química "Andrés M. del Río" (IQAR) , UAH , 28801 Alcalá de Henares , Spain.,Networking Research Center on Bioengineering , Biomaterials and Nanomedicine (CIBER-BBN) , 28029 Madrid , Spain.,Instituto Ramón y Cajal de Investigación Sanitaria, IRYCIS , 28034 Madrid , Spain
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2
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Identification of an Ultra-Short Peptide with Potent Pseudomonas aeruginosa Activity for Development as a Topical Antibacterial Agent. Int J Pept Res Ther 2018. [DOI: 10.1007/s10989-018-9678-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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3
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Screening for a Potent Antibacterial Peptide to Treat Mupirocin-Resistant MRSA Skin Infections. Int J Pept Res Ther 2017. [DOI: 10.1007/s10989-017-9580-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Ng SMS, Yap YYA, Cheong JWD, Ng FM, Lau QY, Barkham T, Teo JWP, Hill J, Chia CSB. Antifungal peptides: a potential new class of antifungals for treating vulvovaginal candidiasis caused by fluconazole-resistant Candida albicans. J Pept Sci 2017; 23:215-221. [PMID: 28105725 DOI: 10.1002/psc.2970] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 12/14/2016] [Accepted: 12/23/2016] [Indexed: 11/06/2022]
Abstract
Vulvovaginal candidiasis/candidosis is a common fungal infection afflicting approximately 75% of women globally caused primarily by the yeast Candida albicans. Fluconazole is widely regarded as the antifungal drug of choice since its introduction in 1990 due to its high oral bioavailability, convenient dosing regimen and favourable safety profile. However, its widespread use has led to the emergence of fluconazole-resistant C. albicans, posing a universal clinical concern. Coupled to the dearth of new antifungal drugs entering the market, it is imperative to introduce new drug classes to counter this threat. Antimicrobial peptides (AMPs) are potential candidates due to their membrane-disrupting mechanism of action. By specifically targeting fungal membranes and being rapidly fungicidal, they can reduce the chances of resistance development and treatment duration. Towards this goal, we conducted a head-to-head comparison of 61 short linear AMPs from the literature to identify the peptide with the most potent activity against fluconazole-resistant C. albicans. The 11-residue peptide, P11-6, was identified and assayed against a panel of clinical C. albicans isolates followed by fungicidal/static determination and a time-kill assay to gauge its potential for further drug development. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Siew Mei Samantha Ng
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
| | - Yi Yong Alvin Yap
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
| | - Jin Wei Darryl Cheong
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
| | - Fui Mee Ng
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
| | - Qiu Ying Lau
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
| | - Timothy Barkham
- Department of Laboratory Medicine, Tan Tock Seng Hospital, 11 Jalan Tan Tock Seng, 308433, Singapore
| | - Jeanette Woon Pei Teo
- Department of Laboratory Medicine, National University Hospital, 5 Lower Kent Ridge Road, 119074, Singapore
| | - Jeffrey Hill
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
| | - Cheng San Brian Chia
- Experimental Therapeutics Centre, Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #03-01, 138669, Singapore
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González R, Mendive-Tapia L, Pastrian MB, Albericio F, Lavilla R, Cascone O, Iannucci NB. Enhanced antimicrobial activity of a peptide derived from human lysozyme by arylation of its tryptophan residues. J Pept Sci 2016; 22:123-8. [PMID: 26785822 DOI: 10.1002/psc.2850] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 12/03/2015] [Accepted: 12/14/2015] [Indexed: 02/03/2023]
Abstract
Antimicrobial peptides are valuable agents to fight antibiotic resistance. These amphipatic species display positively charged and hydrophobic amino acids. Here, we enhance the local hydrophobicity of a model peptide derived from human lysozyme (107RKWVWWRNR115) by arylation of its tryptophan (Trp) residues, which renders a positive effect on Staphylococcus aureus and Staphylococcus epidermidis growth inhibition. This site-selective modification was accessed by solid-phase peptide synthesis using the non-proteinogenic amino acid 2-aryltryptophan, generated by direct C-H activation from protected Trp. The modification brought about a relevant increase in growth inhibition: S. aureus was fully inhibited by arylation of Trp 112 and by only 10% by arylation of Trp 109 or 111, respect to the non-arylated peptide. On the other hand, S. epidermidis was fully inhibited by the three arylated peptides and the parent peptide. The minimum inhibitory concentration was significantly reduced for S. aureus depending on the arylation site.
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Affiliation(s)
- Rodrigo González
- Cathedra of Biotechnology, School of Pharmacy and Biochemistry, UBA, and NANOBIOTEC, UBA-CONICET, Junín 956, (1113), Buenos Aires, Argentina
| | - Lorena Mendive-Tapia
- Department of Organic Chemistry, School of Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain.,Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028, Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028, Barcelona, Spain
| | - María B Pastrian
- Cathedra of Biotechnology, School of Pharmacy and Biochemistry, UBA, and NANOBIOTEC, UBA-CONICET, Junín 956, (1113), Buenos Aires, Argentina
| | - Fernando Albericio
- Department of Organic Chemistry, School of Chemistry, University of Barcelona, Martí i Franquès 1-11, 08028, Barcelona, Spain.,Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028, Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028, Barcelona, Spain.,School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, University Road, Westville, 4001, Durban, South Africa
| | - Rodolfo Lavilla
- Laboratory of Organic Chemistry, Faculty of Pharmacy, University of Barcelona, Barcelona Science Park, Baldiri Reixac 10-12, 08028, Barcelona, Spain
| | - Osvaldo Cascone
- Cathedra of Biotechnology, School of Pharmacy and Biochemistry, UBA, and NANOBIOTEC, UBA-CONICET, Junín 956, (1113), Buenos Aires, Argentina
| | - Nancy B Iannucci
- Cathedra of Biotechnology, School of Pharmacy and Biochemistry, UBA, and NANOBIOTEC, UBA-CONICET, Junín 956, (1113), Buenos Aires, Argentina
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