|
1
|
Hazarosova R, Momchilova A, Vitkova V, Yordanova V, Kostadinova A, Angelova MI, Tessier C, Nuss P, Staneva G. Structural Changes Induced by Resveratrol in Monounsaturated and Polyunsaturated Phosphatidylcholine-Enriched Model Membranes. MEMBRANES 2023; 13:909. [PMID: 38132913 PMCID: PMC10744944 DOI: 10.3390/membranes13120909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023]
Abstract
Resveratrol (Resv) is considered to exert a beneficial impact due to its radical scavenger, anti-microbial and anti-inflammatory properties through several mechanisms that could include its interaction with the cell plasma membrane. To address this issue, we investigated the influence of Resv on membrane lipid order and organization in large unilamellar vesicles composed of different lipids and ratios. The studied lipid membrane models were composed of phosphatidylcholine (PC) species (either palmitoyl-docosahexaenoyl phosphatidylcholine (PDPC) or palmitoyl-oleoyl phosphatidylcholine (POPC)), sphingomyelin (SM) and cholesterol (Chol). This study found that the addition of Resv resulted in complex membrane reorganization depending on the degree of fatty acid unsaturation at the sn-2 position, and the Lipid/Resv and SM/Chol ratios. Resv rigidified POPC-containing membranes and increased liquid-ordered (Lo) domain formation in 40/40/20 POPC/SM/Chol mixtures as this increase was lower at a 33/33/34 ratio. In contrast, Resv interacted with PDPC/SM/Chol mixtures in a bimodal manner by fluidizing/rigidifying the membranes in a dose-dependent way. Lo domain formation upon Resv addition occurred via the following bimodal mode of action: Lo domain size increased at low Resv concentrations; then, Lo domain size decreased at higher ones. To account for the variable effect of Resv, we suggest that it may act as a "spacer" at low doses, with a transition to a more "filler" position in the lipid bulk. We hypothesize that one of the roles of Resv is to tune the lipid order and organization of cell plasma membranes, which is closely linked to important cell functions such as membrane sorting and trafficking.
Collapse
Affiliation(s)
- Rusina Hazarosova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria; (R.H.); (A.M.); (V.Y.); (A.K.)
| | - Albena Momchilova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria; (R.H.); (A.M.); (V.Y.); (A.K.)
| | - Victoria Vitkova
- Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria;
| | - Vesela Yordanova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria; (R.H.); (A.M.); (V.Y.); (A.K.)
| | - Aneliya Kostadinova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria; (R.H.); (A.M.); (V.Y.); (A.K.)
| | - Miglena I. Angelova
- Department of Physics, Faculty of Sciences and Engineering, Sorbonne University, 75005 Paris, France;
- Matière et Systèmes Complexes (MSC), CNRS UMR 7057, University Paris Cite, 75013 Paris, France
| | - Cedric Tessier
- Department of Psychiatry, Saint-Antoine Hospital, DMU Neuroscience, Sorbonne University, Assistance Publique-Hôpitaux de Paris (AP-HP), 75012 Paris, France; (C.T.); (P.N.)
| | - Philippe Nuss
- Department of Psychiatry, Saint-Antoine Hospital, DMU Neuroscience, Sorbonne University, Assistance Publique-Hôpitaux de Paris (AP-HP), 75012 Paris, France; (C.T.); (P.N.)
- Centre de Recherche Saint-Antoine, INSERM UMRS 938, Sorbonne Université, 75012 Paris, France
| | - Galya Staneva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., Bl. 21, 1113 Sofia, Bulgaria; (R.H.); (A.M.); (V.Y.); (A.K.)
| |
Collapse
|
|
2
|
Ma X, Chen Y, Shu A, Jiang Y, Chen X, Ma C, Zhou M, Wang T, Chen T, Shaw C, Wang L. A Novel Antimicrobial Peptide, Dermaseptin-SS1, with Anti-Proliferative Activity, Isolated from the Skin Secretion of Phyllomedusa tarsius. Molecules 2023; 28:6558. [PMID: 37764334 PMCID: PMC10535717 DOI: 10.3390/molecules28186558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/03/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
The emergence of multidrug-resistant bacteria has severely increased the burden on the global health system, and such pathogenic infections are considered a great threat to human well-being. Antimicrobial peptides, due to their potent antimicrobial activity and low possibility of inducing resistance, are increasingly attracting great interest. Herein, a novel dermaseptin peptide, named Dermaseptin-SS1 (SS1), was identified from a skin-secretion-derived cDNA library of the South/Central American tarsier leaf frog, Phyllomedusa tarsius, using a 'shotgun' cloning strategy. The chemically synthesized peptide SS1 was found to be broadly effective against Gram-negative bacteria with low haemolytic activity in vitro. A designed synthetic analogue of SS1, named peptide 14V5K, showed lower salt sensitivity and more rapid bacteria killing compared to SS1. Both peptides employed a membrane-targeting mechanism to kill Escherichia coli. The antiproliferative activity of SS1 and its analogues against lung cancer cell lines was found to be significant.
Collapse
Affiliation(s)
- Xiaonan Ma
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Yuping Chen
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng 224005, China; (Y.C.); (A.S.)
| | - Anmei Shu
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng 224005, China; (Y.C.); (A.S.)
| | - Yangyang Jiang
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Xiaoling Chen
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Chengbang Ma
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Mei Zhou
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Tao Wang
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Tianbao Chen
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Chris Shaw
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| | - Lei Wang
- Natural Drug Discovery Group, School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (X.M.); (X.C.); (C.M.); (M.Z.); (T.C.); (C.S.); (L.W.)
| |
Collapse
|