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Mandal SM, Barbosa AEAD, Franco OL. Lipopeptides in microbial infection control: scope and reality for industry. Biotechnol Adv 2013; 31:338-45. [PMID: 23318669 DOI: 10.1016/j.biotechadv.2013.01.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2012] [Revised: 01/04/2013] [Accepted: 01/04/2013] [Indexed: 01/12/2023]
Abstract
Lipopeptides are compounds that are formed by cyclic or short linear peptides linked with a lipid tail or other lipophilic molecules. Recently, several lipopeptides were characterized, showing surfactant, antimicrobial and cytotoxic activities. The properties of lipopeptides may lead to applications in diverse industrial fields including the pharmaceutical industry as conventional antibiotics; the cosmetic industry for dermatological product development due to surfactant and anti-wrinkle properties; in food production acting as emulsifiers in various foodstuffs; and also in the field of biotechnology as biosurfactants. Some lipopeptides have reached a commercial antibiotic status, such as daptomycin, caspofungin, micafungin, and anidulafungin. This will be the focus of this review. Moreover, the review presented here will focus on the biotechnological utilization of lipopeptides in different fields as well as the functional-structure relation, connecting recent aspects of synthesis and structure diversity.
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Affiliation(s)
- Santi M Mandal
- Central Research Facility, Indian Institute of Technology Kharagpur, Kharagpur 721302, W B, India
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Nyambi P, Burda S, Urbanski M, Heyndrickx L, Janssens W, Vanham G, Nadas A. Neutralization patterns and evolution of sequential HIV type 1 envelope sequences in HIV type 1 subtype B-infected drug-naive individuals. AIDS Res Hum Retroviruses 2008; 24:1507-19. [PMID: 19018670 DOI: 10.1089/aid.2008.0154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To design a vaccine that will remain potent against HIV-1, the immunogenic regions in the viral envelope that tend to change as well as those that remain constant over time must be identified. To determine the neutralization profiles of sequential viruses over time and study whether neutralization patterns correlate with sequence evolution, 12 broadly neutralizing plasmas from HIV-1 subtype B-infected individuals were tested for their ability to neutralize sequential primary HIV-1 subtype B viruses from four individuals. Three patterns of neutralization were observed, including a loss of neutralization sensitivity by viruses over time, an increase in neutralization sensitivity by sequential viruses, or a similarity in the sensitivity of sequential viruses to neutralization. Seven to 11 gp160 clones from each sequential virus sample were sequenced and analyzed to identify mutational patterns. Analysis of the envelope sequences of the sequential viruses revealed changes characteristic of the neutralization patterns. Viruses that evolved to become resistant to neutralizing antibodies also evolved with diverse sequences, with most of the changes being due to nonsynonymous mutations occurring in the V1/V2, as well as in the constant regions (C2, C3, C4), the most changes occurring in the C3. Viruses from the patient that evolved to become more sensitive to neutralization exhibited less sequence diversity with fewer nonsynonymous changes that occurred mainly in the V1/V2 region. The V3 region remained constant over time for all the viruses tested. This study demonstrates that as viruses evolve in their host, they either become sensitive or resistant to neutralization by antibodies in heterologous plasma and mutations in different envelope regions account for these changes in their neutralization profiles.
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Affiliation(s)
- Phillipe Nyambi
- Department of Pathology, New York University School of Medicine, New York, New York 10016
- Research Enhancement Award Program, Veterans Affairs New York Harbor Healthcare System, New York, New York 10010
| | - Sherri Burda
- Department of Pathology, New York University School of Medicine, New York, New York 10016
| | - Mateusz Urbanski
- Department of Pathology, New York University School of Medicine, New York, New York 10016
| | - Leo Heyndrickx
- Virology Unit, Department of Microbiology, Institute of Tropical Medicine, Antwerp, Belgium
| | - Wouter Janssens
- Virology Unit, Department of Microbiology, Institute of Tropical Medicine, Antwerp, Belgium
| | - Guido Vanham
- Virology Unit, Department of Microbiology, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Biomedical Sciences, Faculty of Pharmaceutical, Veterinary and Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Arthur Nadas
- Institute of Environmental Medicine, New York University School of Medicine, New York, New York 10016
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Fernández-Vidal M, Rojo N, Herrera E, Gómara MJ, Haro I. Liposome destabilization induced by synthetic lipopeptides corresponding to envelope and non-structural domains of GBV-C/HGV virus. Conformational requirements for leakage. Biophys Chem 2008; 132:55-63. [DOI: 10.1016/j.bpc.2007.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2007] [Revised: 10/16/2007] [Accepted: 10/16/2007] [Indexed: 11/26/2022]
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