1
|
Haddad H, Tangy F, Ouahchi I, Sahtout W, Ouni B, Zaïri A. Evaluation of the antiviral activity of new dermaseptin analogs against Zika virus. Biochem Biophys Rep 2024; 39:101747. [PMID: 38939125 PMCID: PMC11208914 DOI: 10.1016/j.bbrep.2024.101747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/29/2024] Open
Abstract
Zika virus represents the primary cause of infection during pregnancy and can lead to various neurological disorders such as microcephaly and Guillain-Barré syndrome affecting both children and adults. This infection is also associated with urological and nephrological problems. So far, evidence of mosquito-borne Zika virus infection has been reported in a total of 89 countries and territories. However, surveillance efforts primarily concentrate on outbreaks that this virus can cause, yet the measures implemented are typically limited. Currently, there are no specific treatments or vaccines designed for the prevention or treatment of Zika virus infection or its associated disease. The development of effective therapeutic agents presents an urgent need. Importantly, an alternative for advancing the discovery of new molecules could be dermaseptins, a family of antimicrobial peptides known for their potential antiviral properties. In this study, we carried out the synthesis of dermaseptins and their analogs and subsequently assessed the bioactivity tests against Zika virus (ZIKV PF13) of dermaseptins B2 and S4 and their derivatives. The cytotoxicity of these peptides was investigated on HMC3 cell line and HeLa cells by CellTiter-Glo® Luminescent Cell Viability Assay. Thereafter, we evaluated the antiviral activity caused by the action of our dermaseptins on the viral envelope using the Fluorescence Activated Cell Sorting (FACS). The cytotoxicity of our molecules was concentration-dependent at microgram concentrations Expect for dermaseptin B2 and its derivative which present no toxicity against HeLa and HMC3 cell lines. It was observed that all tested analogs from S4 family exhibited antiviral activity with low concentrations ranging from 3 to 12.5 μg/ml , unlike the native B2 and its derivative which increased the infectivity. Pre-incubating of dermaseptins with ZIKV PF13 before infection revealed that these derivatives inhibit the initial stages of virus infection. In summary, these results suggest that dermaseptins could serve as novel lead structures for the development of potent antiviral agents against Zika virus infections.
Collapse
Affiliation(s)
- Houda Haddad
- BIOLIVAL Laboratory, LR14ES06, The Higher Institute of Biotechnology of Monastir ISBM, University of Monastir, Monastir, 5000, Tunisia
- Biochemistry Department, Faculty of Medicine, University of Sousse, Sousse, 4002, Tunisia
| | - Frédéric Tangy
- Institut Pasteur, Université Paris Cité, Vaccines-innovation Laboratory, 75015, Paris, France
| | - Ines Ouahchi
- Cytogenetics and Reproductive Biology department, Farhat Hached University Teaching Hospital, University of Sousse, 4000, Sousse, Tunisia
| | - Wissal Sahtout
- Nephrology Department, Sahloul University Hospital, University of Sousse, 4054, Sousse, Tunisia
- Research Laboratory LR12SP11, Biochemistry Department, Sahloul University Hospital, University of Sousse, 4054, Sousse, Tunisia
| | - Bouraoui Ouni
- Pharmacology Department, Faculty of Medicine, University of Sousse, 4002, ousse, Tunisia
| | - Amira Zaïri
- Biochemistry Department, Faculty of Medicine, University of Sousse, Sousse, 4002, Tunisia
| |
Collapse
|
2
|
Bioinformatic Analysis of 1000 Amphibian Antimicrobial Peptides Uncovers Multiple Length-Dependent Correlations for Peptide Design and Prediction. Antibiotics (Basel) 2020; 9:antibiotics9080491. [PMID: 32784626 PMCID: PMC7459754 DOI: 10.3390/antibiotics9080491] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/29/2020] [Accepted: 08/03/2020] [Indexed: 12/18/2022] Open
Abstract
Amphibians are widely distributed on different continents, except for the polar regions. They are important sources for the isolation, purification and characterization of natural compounds, including peptides with various functions. Innate immune antimicrobial peptides (AMPs) play a critical role in warding off invading pathogens, such as bacteria, fungi, parasites, and viruses. They may also have other biological functions such as endotoxin neutralization, chemotaxis, anti-inflammation, and wound healing. This article documents a bioinformatic analysis of over 1000 amphibian antimicrobial peptides registered in the Antimicrobial Peptide Database (APD) in the past 18 years. These anuran peptides were discovered in Africa, Asia, Australia, Europe, and America from 1985 to 2019. Genomic and peptidomic studies accelerated the discovery pace and underscored the necessity in establishing criteria for peptide entry into the APD. A total of 99.9% of the anuran antimicrobial peptides are less than 50 amino acids with an average length of 24 and a net charge of +2.5. Interestingly, the various amphibian peptide families (e.g., temporins, brevinins, esculentins) can be connected through multiple length-dependent relationships. With an increase in length, peptide net charge increases, while the hydrophobic content decreases. In addition, glycine, leucine, lysine, and proline all show linear correlations with peptide length. These correlations improve our understanding of amphibian peptides and may be useful for prediction and design of new linear peptides with potential applications in treating infectious diseases, cancer and diabetes.
Collapse
|
3
|
Bartels EJH, Dekker D, Amiche M. Dermaseptins, Multifunctional Antimicrobial Peptides: A Review of Their Pharmacology, Effectivity, Mechanism of Action, and Possible Future Directions. Front Pharmacol 2019; 10:1421. [PMID: 31849670 PMCID: PMC6901996 DOI: 10.3389/fphar.2019.01421] [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: 04/22/2019] [Accepted: 11/07/2019] [Indexed: 12/13/2022] Open
Abstract
Dermaseptins are a group of α-helical shaped polycationic peptides isolated from the Hylid frogs, with antimicrobial effects against bacteria, parasites, protozoa, viruses in vitro. Besides, anti-tumor effects have been demonstrated. However, few animal experiments and no clinical trials have been conducted thus far. This review summarizes the current knowledge on the pharmacology, ethno pharmacology, effectivity against infectious pathogens and tumors cells and the mechanism of action of the Dermaseptins. Future research should focus on further clarification of the mechanisms of action, the effectivity of Dermaseptins against several cancer cell lines and their applicability in humans.
Collapse
Affiliation(s)
| | - Douwe Dekker
- Dutch Poisons Information Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Mohamed Amiche
- Mondor Institute of Biomedical Research, INSERM U955 Team 7, School of Medicine, University Paris Est Créteil, Créteil, France
| |
Collapse
|
4
|
Fan Y, Chen N, Wang M, Rao M, Su P. In vitro study evaluating the instantaneous treatment of ozonised olive oil on human sperm. EUR J CONTRACEP REPR 2018; 23:147-153. [PMID: 29671339 DOI: 10.1080/13625187.2018.1455086] [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: 10/17/2022]
Abstract
OBJECTIVE The aim of our study was to evaluate the effects of ozonised olive oil (OOO) on human sperm in vitro. METHODS Human sperm was incubated with OOO for 20 s in vitro. The lowest concentration that completely immobilised all the sperm in 20 s without subsequent recovery of motility was recorded as the minimum effective concentration (MEC). The effects of OOO at MEC on human sperm viability, mitochondrial and acrosomal status, DNA integrity and transmission electron microscopy were observed. RESULTS Our findings demonstrate that OOO dose-dependently inhibits sperm motility. The MEC of OOO for 100% sperm immobilisation in 20 s was 6 μg/ml. Further experiments showed that sperm ultrastructure, function and DNA integrity were significantly affected after treatment with 6 μg/ml OOO in vitro. CONCLUSIONS OOO has spermicidal potential and may be explored as a promising vaginal contraceptive agent.
Collapse
Affiliation(s)
- Yan Fan
- a Family Planning Research Institute , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Na Chen
- a Family Planning Research Institute , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Mei Wang
- a Family Planning Research Institute , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Meng Rao
- a Family Planning Research Institute , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| | - Ping Su
- a Family Planning Research Institute , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China.,b Reproductive Medicine Center , Tongji Medical College, Huazhong University of Science and Technology , Wuhan , P. R. China
| |
Collapse
|
5
|
PSN-PC: A Novel Antimicrobial and Anti-Biofilm Peptide from the Skin Secretion of Phyllomedusa-camba with Cytotoxicity on Human Lung Cancer Cell. Molecules 2017; 22:molecules22111896. [PMID: 29112170 PMCID: PMC6150266 DOI: 10.3390/molecules22111896] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 10/30/2017] [Accepted: 11/02/2017] [Indexed: 11/17/2022] Open
Abstract
Peptides derived from amphibian skin secretion are promising drug prototypes for combating widespread infection. In this study, a novel peptide belonging to the phylloseptin family of antimicrobial peptides was isolated from the skin secretion of the Phyllomedusa camba, namely phylloseptin-PC (PSN-PC). The biosynthetic precursor was obtained by molecular cloning and the mature peptide sequence was confirmed through tandem mass spectrometry (MS/MS) fragmentation sequencing in the skin secretion. The synthetic replicate exhibited a broad spectrum antimicrobial activity against Staphylococcus aureus, methicillin-resistant Staphylococcus aureus,Escherichia coli, Pseudomonas aeruginosa, Candida albicans at concentrations of 2, 2, 8, 32 and 2 µM, respectively. It also showed the capability of eliminating S. aureus biofilm with a minimal biofilm eradication concentration of 8 µM. The haemolysis of this peptide was not significant at low concentrations but had a considerable increase at high concentrations. Additionally, this peptide showed an anti-proliferation effect on the non-small cell lung cancer cell line (NCI-H157), with low cytotoxicity on the human microvascular endothelial cell line (HMEC-1). The discovery of the novel peptide may provide useful clues for new drug discoveries.
Collapse
|
6
|
Venomics analyses of the skin secretion of Dermatonotus muelleri : Preliminary proteomic and metabolomic profiling. Toxicon 2017; 130:127-135. [DOI: 10.1016/j.toxicon.2017.02.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 02/23/2017] [Accepted: 02/24/2017] [Indexed: 11/17/2022]
|
7
|
Tanphaichitr N, Srakaew N, Alonzi R, Kiattiburut W, Kongmanas K, Zhi R, Li W, Baker M, Wang G, Hickling D. Potential Use of Antimicrobial Peptides as Vaginal Spermicides/Microbicides. Pharmaceuticals (Basel) 2016; 9:E13. [PMID: 26978373 PMCID: PMC4812377 DOI: 10.3390/ph9010013] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 03/01/2016] [Accepted: 03/03/2016] [Indexed: 12/11/2022] Open
Abstract
The concurrent increases in global population and sexually transmitted infection (STI) demand a search for agents with dual spermicidal and microbicidal properties for topical vaginal application. Previous attempts to develop the surfactant spermicide, nonoxynol-9 (N-9), into a vaginal microbicide were unsuccessful largely due to its inefficiency to kill microbes. Furthermore, N-9 causes damage to the vaginal epithelium, thus accelerating microbes to enter the women's body. For this reason, antimicrobial peptides (AMPs), naturally secreted by all forms of life as part of innate immunity, deserve evaluation for their potential spermicidal effects. To date, twelve spermicidal AMPs have been described including LL-37, magainin 2 and nisin A. Human cathelicidin LL-37 is the most promising spermicidal AMP to be further developed for vaginal use for the following reasons. First, it is a human AMP naturally produced in the vagina after intercourse. Second, LL-37 exerts microbicidal effects to numerous microbes including those that cause STI. Third, its cytotoxicity is selective to sperm and not to the female reproductive tract. Furthermore, the spermicidal effects of LL-37 have been demonstrated in vivo in mice. Therefore, the availability of LL-37 as a vaginal spermicide/microbicide will empower women for self-protection against unwanted pregnancies and STI.
Collapse
Affiliation(s)
- Nongnuj Tanphaichitr
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8L6, ON, Canada.
- Department of Biochemistry, Microbiology, Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, ON, Canada.
| | - Nopparat Srakaew
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
- Department of Zoology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand.
| | - Rhea Alonzi
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
- Department of Biochemistry, Microbiology, Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, ON, Canada.
| | - Wongsakorn Kiattiburut
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
| | - Kessiri Kongmanas
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
- Division of Dengue Hemorrhagic Fever Research Unit, Office of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
| | - Ruina Zhi
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, and School of Public Health, Fudan University, Shanghai 200032, China.
| | - Weihua Li
- Key Laboratory of Reproduction Regulation of NPFPC, Shanghai Institute of Planned Parenthood Research, and School of Public Health, Fudan University, Shanghai 200032, China.
| | - Mark Baker
- Reproductive Proteomics, Department of Science and Information technology, University of Newcastle, Callaghan Drive, Newcastle, NSW 2308 Australia.
| | - Guanshun Wang
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, 986495 Nebraska Medical Center, Omaha, NE 68198-6495, USA.
| | - Duane Hickling
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, Ontario K1H 8L6, ON, Canada.
- Division of Urology, Department of Surgery, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1Y 4E9, ON, Canada.
| |
Collapse
|
8
|
Srakaew N, Young CD, Sae-wu A, Xu H, Quesnel KL, di Brisco R, Kongmanas K, Fongmoon D, Hommalai G, Weerachatyanukul W, Hall SH, Zhang YL, Panza L, Franchini L, Compostella F, Pearson TW, Hancock RE, Oko RJ, Hermo LS, Tanphaichitr N. Antimicrobial host defence peptide, LL-37, as a potential vaginal contraceptive. Hum Reprod 2014; 29:683-96. [PMID: 24549217 DOI: 10.1093/humrep/deu018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
STUDY QUESTION Does antimicrobial peptide, LL-37, inhibit sperm fertilizing ability? SUMMARY ANSWER Our results indicate that LL-37 inhibits mouse and human sperm fertilizing ability. WHAT IS KNOWN ALREADY LL-37, a cationic antimicrobial peptide, exerts its microbicidal effects through the disruption of microbial cytoplasmic membranes following its interaction with microbial surface anionic phospholipids. ALL-38 (an LL-37 close analogue: LL-37 + Ala at the N-terminus) is produced in the vagina 2-6 h post-intercourse from its precursor hCAP-18, a seminal plasma component. At this time, motile sperm have already swum into the uterine cavity, thus unexposed to ALL-38. Since sperm contain a substantial amount of acidic sulfogalactosylglycerolipid (SGG) on their surface, treatment of sperm with LL-37 may cause their membrane disruption in an analogous manner to that occurring on microbial membranes. STUDY DESIGN, SIZE AND DURATION Mouse/human sperm treated (2-30 min) with LL-37 in a physiological concentration range (up to 10.8 µM) were assessed for SGG-dependent LL-37 binding, and parameters relevant to fertilizing ability, namely motility and intactness of the sperm acrosome and plasma membrane. Ability of mouse sperm to fertilize eggs in vitro was also evaluated. Each study was performed with greater than or equal to three different sperm samples. The efficacy of LL-37 to inhibit sperm fertilizing ability in vivo was determined in female mice (n = 26 each for LL-37 treatment and no treatment), using sperm retrieved from 26 males. PARTICIPANTS/MATERIALS, SETTING, METHODS Human sperm samples were donated by fertile men. LL-37 was chemically synthesized and was biotinylated for sperm binding studies. Sperm motility was assessed by videomicroscopy and the acrosomal status by Coomassie blue staining of acrosome-intact mouse sperm or the exposure of CD46, an inner acrosomal membrane protein, of acrosome reacted human sperm. Sperm membrane permeabilization/disruption was assessed by the loss of hypo-osmotic swelling response, an incorporation of Sytox Green (a membrane impermeable fluorescent DNA dye), and electron microscopy. Mouse IVF was scored by the presence of two pronuclei in eggs 6 h post-insemination. Ability of mouse sperm to fertilize eggs in vivo was determined by the pregnancy outcome of female mice injected transcervically with sperm with or without LL-37. MAIN RESULTS AND THE ROLE OF CHANCE Biotinylated LL-37 bound to both mouse and human sperm and the binding was partially dependent on sperm surface SGG. Mouse and human sperm became immotile and underwent a premature acrosome reaction upon treatment with LL-37 at 3.6 and 10.8 µM, respectively. The initial action of LL-37 on both mouse and human sperm appeared to be through permeabilization/disruption of sperm surface membranes evidenced by the loss of hypo-osmotic swelling response, Sytox Green staining and electron microscopy revealing ultrastructural damage. Mouse sperm treated with 3.6 µM LL-37 lost the ability to fertilize eggs both in vitro and in vivo. All 26 female mice inseminated with sperm and LL-37 did not become pregnant. No apparent damage to the reproductive tract was observed as revealed by histological characterization in LL-37-inseminated mice and these females resumed fecundity following mating with fertile males. LIMITATIONS, REASONS FOR CAUTION Direct demonstration that LL-37 treated human sperm fail to fertilize eggs was limited by legal restrictions on obtaining human eggs for such use. WIDER IMPLICATIONS OF THE FINDINGS Our results reveal selective inhibitory effects of LL-37 on sperm fertilizing ability in mice without apparent impairment to the female reproductive tract. LL-37 is therefore a promising candidate to be developed into a vaginal contraceptive with microbicidal activity. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by Grand Challenges Explorations grant from the Bill & Melinda Gates Foundation (OPP1024509), Canadian Institutes of Health Research (MOP119438 & CCI82413) and International Collaboration and Exchanges NSFC of China (No.30611120525). There are no competing interests to declare.
Collapse
Affiliation(s)
- Nopparat Srakaew
- Chronic Disease Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada K1H 8L6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Zaïri A, Tangy F, Hani K. Dermaseptin S4derivative K4K20S4: A potential candidate for development of a new microbicide contraceptive agent – anin vitrostudy. EUR J CONTRACEP REPR 2013; 18:79-87. [DOI: 10.3109/13625187.2013.769950] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
10
|
Nithya RS, Anuja MM, Rajamanickam C, Indira M. Rat sperm immobilisation effects of a protein fromRicinus communis(Linn.): anin vitrocomparative study with nonoxynol-9. Andrologia 2012; 44:381-7. [DOI: 10.1111/j.1439-0272.2012.01291.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2012] [Indexed: 11/29/2022] Open
Affiliation(s)
- R. S. Nithya
- Department of Biochemistry; University of Kerala; Kariavattom; Kerala; India
| | - M. M. Anuja
- Department of Biochemistry; University of Kerala; Kariavattom; Kerala; India
| | - C. Rajamanickam
- Department of Biochemistry; University of Kerala; Kariavattom; Kerala; India
| | - M. Indira
- Department of Biochemistry; University of Kerala; Kariavattom; Kerala; India
| |
Collapse
|
11
|
Multipurpose prevention technologies: biomedical tools to prevent HIV-1, HSV-2, and unintended pregnancies. Infect Dis Obstet Gynecol 2011; 2011:1-10. [PMID: 21836811 PMCID: PMC3152961 DOI: 10.1155/2011/429403] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Accepted: 06/15/2011] [Indexed: 11/18/2022] Open
Abstract
Statistics clearly show an unmet need for highly effective contraception, especially in less developed countries. Many of these countries are at the core of the HIV/AIDS epidemic and show very high prevalence rates for other sexually transmitted infections (STIs) such as that caused by HSV-2. A woman at risk of unintended pregnancy due to unprotected intercourse is also at risk for HIV/STI. Owing to their causative interrelationship, combining protection against these conditions will result in enhanced prevention and health benefits. Existing multipurpose prevention modalities such as condoms and physical barriers, albeit efficacious, face cultural hurdles that have so far hindered their widespread use. Success has recently been demonstrated in large clinical trials, demonstrating proof of concept of microbicides in reducing the incidence of HIV-1 and HSV-2 among at-risk populations. The challenge heretofore is to refine these products to make them more potent, convenient, accessible, and acceptable. Potent antiviral drugs released topically in the female reproductive tract by innovative delivered systems and formulations will provide safe, effective, and acceptable multipurpose prevention tools. This paper provides an overview of existing and novel approaches to multipurpose prevention strategies.
Collapse
|
12
|
Zairi A, Tangy F, Bouassida K, Hani K. Dermaseptins and magainins: antimicrobial peptides from frogs' skin-new sources for a promising spermicides microbicides-a mini review. J Biomed Biotechnol 2009; 2009:452567. [PMID: 19893636 PMCID: PMC2773376 DOI: 10.1155/2009/452567] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Accepted: 08/17/2009] [Indexed: 12/22/2022] Open
Abstract
Sexually transmitted infections (STIs) and human immunodeficiency virus (HIV), the causative agents of acquired immunodeficiency syndrome (AIDS), are two great concerns in the reproductive health of women. Thus, the challenge is to find products with a double activity, on the one hand having antimicrobial/antiviral properties with a role in the reduction of STI, and on the other hand having spermicidal action to be used as a contraceptive. In the absence of an effective microbicide along with the disadvantages of the most commonly used spermicidal contraceptive worldwide, nonoxynol-9, new emphasis has been focused on the development of more potential intravaginal microbicidal agents. Topical microbicides spermicides would ideally provide a female-controlled method of self-protection against HIV as well as preventing pregnancies. Nonoxynol-9, the only recommended microbicide spermicide, damages cervicovaginal epithelium because of its membrane-disruptive properties. Clearly, there is an urgent need to identify new compounds with dual potential microbicidal properties; antimicrobial peptides should be candidates for such investigations. Dermaseptins and magainins are two classes of cationic, amphipathic alpha-helical peptides that have been identified in the skin extracts of frogs Phyllomedusa sauvagei and Xenopus laevis. Regarding their contraceptive activities and their effect against various STI-causing pathogens, we believe that these two peptides are appropriate candidates in the evaluation of newer and safer microbicides spermicides in the future.
Collapse
Affiliation(s)
- Amira Zairi
- Laboratory of Biochemistry, Faculty of Medicine, 4002 Sousse, Tunisia
| | - Frédéric Tangy
- Institut Pasteur, Unité des Virus Lents, CNRS URA 1930, 75015 Paris, France
| | | | - Khaled Hani
- Laboratory of Biochemistry, Faculty of Medicine, 4002 Sousse, Tunisia
| |
Collapse
|
13
|
Characterization of antimicrobial peptides isolated from the skin of the Chinese frog, Rana dybowskii. Comp Biochem Physiol B Biochem Mol Biol 2009; 154:174-8. [DOI: 10.1016/j.cbpb.2009.05.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2009] [Revised: 05/27/2009] [Accepted: 05/28/2009] [Indexed: 11/19/2022]
|
14
|
Jha R, Jha P, Rana S, Guha S. Spermicidal Action of Styrene Maleic Anhydride Polyelectrolyte in Combination with Magnetic and Electrically Conductive Particles. INT J PHARMACOL 2008. [DOI: 10.3923/ijp.2009.1.12] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
15
|
Bridging the gap between male and female fertility control; contraception-on-demand. Contraception 2008; 78:S28-35. [DOI: 10.1016/j.contraception.2008.03.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Accepted: 03/27/2008] [Indexed: 01/30/2023]
|
16
|
Synthesis and antimicrobial activity of dermaseptin S1 analogues. Bioorg Med Chem 2008; 16:8205-9. [PMID: 18676150 DOI: 10.1016/j.bmc.2008.07.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Revised: 07/04/2008] [Accepted: 07/16/2008] [Indexed: 11/21/2022]
Abstract
Dermaseptins are peptides found in the skin secretions of Phyllomedusinae frogs. These peptides exert lytic action on some microorganisms without substantial haemolysis. In an attempt to understand the antimicrobial activity of these peptides we designed several dermaseptin S1 (ALWKTMLKKLGTMALHAGKAALGAAADTISQGTQ) (DS1) analogues. All peptides were tested on the growth of prokaryotic (Gram-positive and Gram-negative bacteria) and eukaryotic (the yeast Candida albicans and the protozoon Leishmania major) organisms. Our data showed a dose-dependent killing effect by most DS1 derivatives. Maximal antibacterial activity was displayed by a 16-mer peptide that was more active than native DS1.
Collapse
|
17
|
Zairi A, Serres C, Tangy F, Jouannet P, Hani K. In vitro spermicidal activity of peptides from amphibian skin: Dermaseptin S4 and derivatives. Bioorg Med Chem 2008; 16:266-75. [DOI: 10.1016/j.bmc.2007.09.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2007] [Revised: 09/14/2007] [Accepted: 09/21/2007] [Indexed: 11/27/2022]
|
18
|
Thompson AH, Bjourson AJ, Orr DF, Shaw C, McClean S. A combined mass spectrometric and cDNA sequencing approach to the isolation and characterization of novel antimicrobial peptides from the skin secretions of Phyllomedusa hypochondrialis azurea. Peptides 2007; 28:1331-43. [PMID: 17553595 DOI: 10.1016/j.peptides.2007.05.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2006] [Revised: 04/30/2007] [Accepted: 05/01/2007] [Indexed: 10/23/2022]
Abstract
Studies conducted on amphibian skin secretions over the past 40 years have isolated and identified huge arrays of bioactive peptides, many of which have demonstrated potent anti-microbial activity. Such peptides are attracting increasing attention due to the growing problem of pathogenic microorganisms resistant to conventional antibiotics. The current study utilized a combined proteomic/genomic approach to facilitate the high throughput sequencing of five novel dermaseptins and four novel phylloseptins from the skin secretions of Phyllomedusa hypochondrialis azurea. Peptides were partially identified using Q-TOF MS/MS fragmentation and de novo sequencing, while a cDNA library was constructed from the lyophilized skin secretion. 3'-RACE reactions used primers designed for the highly conserved 5'-signal regions of previously deduced dermaseptin precursors. cDNA sequenced peptides were attributed to their respective fragmentation spectra to confirm the structure of the final processed peptides. Such an approach identified post-translational modifications in addition to deciphering isobaric amino acids. Several of the peptides were purified to homogeneity and displayed potent antimicrobial activity with minimum inhibitory concentrations starting at 0.4 microM when tested against and range of Gram-positive and Gram-negative bacteria including Escherichia coli, Staphylococcus aureus and Micrococcus luteus.
Collapse
Affiliation(s)
- Alan Hunter Thompson
- Institute of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine, Co Londonderry BT52 1SA, Northern Ireland, UK
| | | | | | | | | |
Collapse
|
19
|
Abstract
Uncontrolled fertility results in significant infant and maternal mortality and morbidity. Contraception has the potential to reduce this disease burden. Although a rich array of reversible contraceptive methods exists, the need for more effective and user-friendly methods remains. Access to methods and affordability are major barriers in many parts of the world. However, in other areas, successful utilization is limited by convenience factors or a lack of appreciation of fertility risk. To address these issues, new products that require little user effort have been developed. To encourage correct and consistent use of other methods, noncontraceptive benefits are being popularized and new protocols to initiate contraceptive use immediately are being introduced. This review briefly discusses existing contraceptive methods and new developments that are under investigation.
Collapse
Affiliation(s)
- Anita L Nelson
- Obstetrics and Gynecology, Harbor-UCLA Medical Center, Torrance, CA 90266-6335, USA.
| |
Collapse
|
20
|
Zairi A, Tangy F, Ducos-Galand M, Alonso JM, Hani K. Susceptibility of Neisseria gonorrhoeae to antimicrobial peptides from amphibian skin, dermaseptin, and derivatives. Diagn Microbiol Infect Dis 2007; 57:319-24. [PMID: 17254733 DOI: 10.1016/j.diagmicrobio.2006.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2006] [Revised: 10/31/2006] [Accepted: 11/06/2006] [Indexed: 11/19/2022]
Abstract
We evaluated the antimicrobial effect of antimicrobial peptides from frog skin belonging to the dermaseptin family against reference and clinical Neisseria gonorrhoeae strains, including penicillin-resistant strains. Dermaseptin S4 exhibited anti-N. gonorrhoeae activity against all strains with MICs ranging between 10 and 100 microg/mL. We then used derivatives of DS4 and determined the anti-N. gonorrhoeae activity of each of analogs. All the derivatives showed antimicrobial activity. Among the different molecules tested, we found that dermaseptins K4S4 (1-16)a and K4S4 (1-28) were the more potent to inhibit N. gonorrhoeae growth with MIC of 10 microg/mL against all strains.
Collapse
Affiliation(s)
- Amira Zairi
- Laboratory of Biochemistry (UR/08-45), Faculty of Medicine, 4002 Sousse, Tunisia
| | | | | | | | | |
Collapse
|