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000486141 1001_ $$aStrati, Fabio$$b0
000486141 245__ $$aCerosomes as skin repairing agent: Mode of action studies with a modelstratum corneum layer at liquid/air and liquid/solid interfaces
000486141 260__ $$a[Amsterdam]$$bElsevier$$c2022
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000486141 520__ $$aThe stratum corneum (SC) is the largest physical barrier of the human body. It protects against physical, chemicaland biological damages, and avoids evaporation of water from the deepest skin layers. For its correct functioning,the homeostasis of the SC lipid matrix is fundamental. An alteration of the lipid matrix composition and inparticular of its ceramide (CER) fraction can lead to the development of pathologies such as atopic dermatitis andpsoriasis. Different studies showed that the direct replenishment of SC lipids on damaged skin had positive effectson the recovery of its barrier properties.In this work, cerosomes, i.e. liposomes composed of SC lipids, have been successfully prepared in order toinvestigate the mechanism of interaction with a model SC lipid matrix. The cerosomes contain CER[NP], D-CER[AP], stearic acid and cholesterol. In addition, hydrogenated soybean phospholipids have been added to one ofthe formulations leading to an increased stability at neutral pH. For the mode of action studies, monolayermodels at the air-water interface and on solid support have been deployed. The results indicated that a stronginteraction occurred between SC monolayers and the cerosomes. Since both systems were negatively charged, thedriving force for the interaction must be based on the ability of CERs head groups to establish intermolecularhydrogen bonding networks that energetically prevailed against the electrostatic repulsion. This work proved forthe first time the mode of action by which cerosomes exploit their function as skin barrier repairing agents on theSC.
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000486141 7001_ $$aMukhina, Tetiana$$b1
000486141 7001_ $$aNeubert, Reinhard H. H.$$b2
000486141 7001_ $$aOpalka, Lukas$$b3
000486141 7001_ $$aHause, Gerd$$b4
000486141 7001_ $$aSchmelzer, Christian E. H.$$b5
000486141 7001_ $$aMenzel, Matthias$$b6
000486141 7001_ $$0P:(DE-H253)PIP1008088$$aBrezesinski, Gerald$$b7$$eCorresponding author
000486141 773__ $$0PERI:(DE-600)3063510-X$$a10.1016/j.bbadva.2021.100039$$gVol. 2, p. 100039 -$$p100039 $$tBBA advances$$v2$$x2667-1603$$y2022
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