Advances in physicochemical and biochemical characterization of archaeosomes from polar lipids of Aeropyrum pernix K1 and stability in biological systems

Jan Kejžar (Author), Ilja Gasan Osojnik Črnivec (Author), Nataša Poklar Ulrih (Author)

Abstract

Archaeosomes are vesicles made from archaeal lipids. They are characterized by remarkable thermostability, resistance to enzymatic degradation, long-term stability, and immunomodulatory properties. In this review the current status of physicochemical properties of archaeal lipids and their stability in biological systems is presented, focusing on total polar lipids from Aeropyrum pernix K1. The isolated total polar lipids from Aeropyrum pernix K1 consist exclusively of glycerol ether lipids with isoprenoid groups attached to glycerol via ether linkages. More specifically, the two major polar lipids extracted from the membranes are C$_{25,25}$-achaetidyl(glucosyl)inositol and C$_{25,25}$-achaetidylinositol. An overview of the results of the effects of temperature and pH on the stability, structural organization, fluidity, and permeability of archaeosomes composed of pure C$_{25,25}$ was examined by a combination of techniques, including fluorescence emission spectroscopy, electron paramagnetic resonance, differential scanning calorimetry, and confocal microscopy. We also compared the physicochemical properties of pure vesicles composed of either archaeal lipids or conventional lipids (e.g., 1,2-dipalmitoyl-sn-glycero-3-phosphocholine) with mixed vesicles composed of both lipid types. Archaeal lipids are discussed in terms of their potential use as a targeted drug delivery system based on the results of in vivo and cytotoxicity studies.

Keywords

liposomi;arheosomi;arheje;lipidi arhej;fizikalnokemijske lastnosti;dostavni sistemi;

Data

Language:	English
Year of publishing:	2023
Typology:	1.02 - Review Article
Organization:	UL BF - Biotechnical Faculty
UDC:	577.35:582.233:615.014.6
COBISS:	138234627
ISSN:	2470-1343
Views:	21
Downloads:	5
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	liposomi;arheosomi;arheje;lipidi arhej;fizikalnokemijske lastnosti;dostavni sistemi;
Type (COBISS):	Article
Pages:	str. 2861-2870
Volume:	ǂVol. ǂ8
Issue:	ǂissue ǂ3
Chronology:	2023
DOI:	10.1021/acsomega.2c07406
ID:	18003287