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Rousel J, Mergen C, Schoones JW, Niemeyer-van der Kolk T, van Doorn MBA, Bouwstra JA, van Smeden J, Rissmann R. Similar alterations of the stratum corneum ceramide profile in atopic dermatitis, psoriasis and ichthyosis: results from a systematic review and meta-analysis. J Invest Dermatol 2024:S0022-202X(24)00168-4. [PMID: 38447864 DOI: 10.1016/j.jid.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 03/08/2024]
Affiliation(s)
- Jannik Rousel
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Catherine Mergen
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Jan W Schoones
- Directorate of Research Policy, Leiden University Medical Centre, Leiden, the Netherlands
| | | | - Martijn B A van Doorn
- Centre for Human Drug Research, Leiden, the Netherlands; Department of Dermatology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Joke A Bouwstra
- Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands
| | - Jeroen van Smeden
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands; Department of Clinical Pharmacy and Toxicology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Robert Rissmann
- Centre for Human Drug Research, Leiden, the Netherlands; Leiden Academic Centre for Drug Research, Leiden University, Leiden, the Netherlands; Department of Dermatology, Leiden University Medical Centre, Leiden, The Netherlands.
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Steigenberger J, Mergen C, De Roo V, Geudens N, Martins JC, Heerklotz H. The effect of membrane thickness on the membrane permeabilizing activity of the cyclic lipopeptide tolaasin II. Front Mol Biosci 2022; 9:1064742. [PMID: 36619163 PMCID: PMC9817028 DOI: 10.3389/fmolb.2022.1064742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/21/2022] [Indexed: 12/25/2022] Open
Abstract
Tolaasin II is an amphiphilic, membrane-active, cyclic lipopeptide produced by Pseudomonas tolaasii and is responsible for brown blotch disease in mushroom. To better understand the mode of action and membrane selectivity of tolaasin II and related lipopeptides, its permeabilizing effect on liposomes of different membrane thickness was characterized. An equi-activity analysis served to distinguish between the effects of membrane partitioning and the intrinsic activity of the membrane-bound peptide. It was found that thicker membranes require higher local peptide concentrations to become leaky. More specifically, the mole ratio of membrane-bound peptide per lipid needed to induce 50% leakage of calcein within 1 h, Re 50, increased monotonically with membrane thickness from 0.0016 for the 14:1 to 0.0070 for the 20:1 lipid-chains. Moreover, fast but limited leakage kinetics in the low-lipid regime were observed implying a mode of action based on membrane asymmetry stress in this time and concentration window. While the assembly of the peptide to oligomeric pores of defined length along the bilayer z-axis can in principle explain inhibition by increasing membrane thickness, it cannot account for the observed limited leakage. Therefore, reduced intrinsic membrane-permeabilizing activity with increasing membrane thickness is attributed here to the increased mechanical strength and order of thicker membranes.
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Affiliation(s)
- Jessica Steigenberger
- Department of Pharmaceutics, Institute of Pharmaceutical Sciences, University of Freiburg, Freiburg, Germany,*Correspondence: Jessica Steigenberger, ; Heiko Heerklotz,
| | - Catherine Mergen
- Department of Pharmaceutics, Institute of Pharmaceutical Sciences, University of Freiburg, Freiburg, Germany
| | - Vic De Roo
- NMR and Structure Analysis Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Niels Geudens
- NMR and Structure Analysis Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - José C. Martins
- NMR and Structure Analysis Research Group, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Heiko Heerklotz
- Department of Pharmaceutics, Institute of Pharmaceutical Sciences, University of Freiburg, Freiburg, Germany,Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada,Signaling Research Centers BIOSS and CIBSS, University of Freiburg, Freiburg, Germany,*Correspondence: Jessica Steigenberger, ; Heiko Heerklotz,
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