25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties
- Autores
- Domingues, Marco M.; Gomes, Bárbara; Hollmann, Axel; Santos, Nuno C.
- Año de publicación
- 2021
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Cholesterol is responsible for the plasticity of plasma membranes and is involved in physiological and pathophysiological responses. Cholesterol homeostasis is regulated by oxysterols, such as 25‐hydroxycholesterol. The presence of 25‐hydroxycholesterol at the membrane level has been shown to interfere with several viruses’ entry into their target cells. We used atomic force microscopy to assess the effect of 25‐hydroxycholesterol on different properties of supported lipid bilayers with controlled lipid compositions. In particular, we showed that 25‐ hydroxycholesterol inhibits the lipid‐condensing effects of cholesterol, rendering the bilayers less rigid. This study indicates that the inclusion of 25‐hydroxycholesterol in plasma membranes or the conversion of part of their cholesterol content into 25‐hydroxycholesterol leads to morphological alterations of the sphingomyelin (SM)‐enriched domains and promotes lipid packing inhomogeneities. These changes culminate in membrane stiffness variations.
Fil: Domingues, Marco M.. Universidade Nova de Lisboa; Portugal
Fil: Gomes, Bárbara. Universidade Nova de Lisboa; Portugal
Fil: Hollmann, Axel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Centro de Investigación en Biofísica Aplicada y Alimentos. - Universidad Nacional de Santiago del Estero. Centro de Investigación en Biofísica Aplicada y Alimentos; Argentina
Fil: Santos, Nuno C.. Universidade Nova de Lisboa; Portugal - Materia
-
25‐HYDROXYCHOLESTEROL
ATOMIC FORCE MICROSCOPY
CHOLESTEROL
FORCE SPECTROSCOPY
SUPPORTED LIPID BILAYERS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/184309
Ver los metadatos del registro completo
id |
CONICETDig_9361f217eab82be82dba174ffba07965 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/184309 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical PropertiesDomingues, Marco M.Gomes, BárbaraHollmann, AxelSantos, Nuno C.25‐HYDROXYCHOLESTEROLATOMIC FORCE MICROSCOPYCHOLESTEROLFORCE SPECTROSCOPYSUPPORTED LIPID BILAYERShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Cholesterol is responsible for the plasticity of plasma membranes and is involved in physiological and pathophysiological responses. Cholesterol homeostasis is regulated by oxysterols, such as 25‐hydroxycholesterol. The presence of 25‐hydroxycholesterol at the membrane level has been shown to interfere with several viruses’ entry into their target cells. We used atomic force microscopy to assess the effect of 25‐hydroxycholesterol on different properties of supported lipid bilayers with controlled lipid compositions. In particular, we showed that 25‐ hydroxycholesterol inhibits the lipid‐condensing effects of cholesterol, rendering the bilayers less rigid. This study indicates that the inclusion of 25‐hydroxycholesterol in plasma membranes or the conversion of part of their cholesterol content into 25‐hydroxycholesterol leads to morphological alterations of the sphingomyelin (SM)‐enriched domains and promotes lipid packing inhomogeneities. These changes culminate in membrane stiffness variations.Fil: Domingues, Marco M.. Universidade Nova de Lisboa; PortugalFil: Gomes, Bárbara. Universidade Nova de Lisboa; PortugalFil: Hollmann, Axel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Centro de Investigación en Biofísica Aplicada y Alimentos. - Universidad Nacional de Santiago del Estero. Centro de Investigación en Biofísica Aplicada y Alimentos; ArgentinaFil: Santos, Nuno C.. Universidade Nova de Lisboa; PortugalMDPI AG2021-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/184309Domingues, Marco M.; Gomes, Bárbara; Hollmann, Axel; Santos, Nuno C.; 25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties; MDPI AG; International Journal of Molecular Sciences; 22; 5; 3-2021; 1-121422-0067CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1422-0067/22/5/2574info:eu-repo/semantics/altIdentifier/doi/10.3390/ijms22052574info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:41:41Zoai:ri.conicet.gov.ar:11336/184309instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:41:41.778CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
title |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
spellingShingle |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties Domingues, Marco M. 25‐HYDROXYCHOLESTEROL ATOMIC FORCE MICROSCOPY CHOLESTEROL FORCE SPECTROSCOPY SUPPORTED LIPID BILAYERS |
title_short |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
title_full |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
title_fullStr |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
title_full_unstemmed |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
title_sort |
25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties |
dc.creator.none.fl_str_mv |
Domingues, Marco M. Gomes, Bárbara Hollmann, Axel Santos, Nuno C. |
author |
Domingues, Marco M. |
author_facet |
Domingues, Marco M. Gomes, Bárbara Hollmann, Axel Santos, Nuno C. |
author_role |
author |
author2 |
Gomes, Bárbara Hollmann, Axel Santos, Nuno C. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
25‐HYDROXYCHOLESTEROL ATOMIC FORCE MICROSCOPY CHOLESTEROL FORCE SPECTROSCOPY SUPPORTED LIPID BILAYERS |
topic |
25‐HYDROXYCHOLESTEROL ATOMIC FORCE MICROSCOPY CHOLESTEROL FORCE SPECTROSCOPY SUPPORTED LIPID BILAYERS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Cholesterol is responsible for the plasticity of plasma membranes and is involved in physiological and pathophysiological responses. Cholesterol homeostasis is regulated by oxysterols, such as 25‐hydroxycholesterol. The presence of 25‐hydroxycholesterol at the membrane level has been shown to interfere with several viruses’ entry into their target cells. We used atomic force microscopy to assess the effect of 25‐hydroxycholesterol on different properties of supported lipid bilayers with controlled lipid compositions. In particular, we showed that 25‐ hydroxycholesterol inhibits the lipid‐condensing effects of cholesterol, rendering the bilayers less rigid. This study indicates that the inclusion of 25‐hydroxycholesterol in plasma membranes or the conversion of part of their cholesterol content into 25‐hydroxycholesterol leads to morphological alterations of the sphingomyelin (SM)‐enriched domains and promotes lipid packing inhomogeneities. These changes culminate in membrane stiffness variations. Fil: Domingues, Marco M.. Universidade Nova de Lisboa; Portugal Fil: Gomes, Bárbara. Universidade Nova de Lisboa; Portugal Fil: Hollmann, Axel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Noa Sur. Centro de Investigación en Biofísica Aplicada y Alimentos. - Universidad Nacional de Santiago del Estero. Centro de Investigación en Biofísica Aplicada y Alimentos; Argentina Fil: Santos, Nuno C.. Universidade Nova de Lisboa; Portugal |
description |
Cholesterol is responsible for the plasticity of plasma membranes and is involved in physiological and pathophysiological responses. Cholesterol homeostasis is regulated by oxysterols, such as 25‐hydroxycholesterol. The presence of 25‐hydroxycholesterol at the membrane level has been shown to interfere with several viruses’ entry into their target cells. We used atomic force microscopy to assess the effect of 25‐hydroxycholesterol on different properties of supported lipid bilayers with controlled lipid compositions. In particular, we showed that 25‐ hydroxycholesterol inhibits the lipid‐condensing effects of cholesterol, rendering the bilayers less rigid. This study indicates that the inclusion of 25‐hydroxycholesterol in plasma membranes or the conversion of part of their cholesterol content into 25‐hydroxycholesterol leads to morphological alterations of the sphingomyelin (SM)‐enriched domains and promotes lipid packing inhomogeneities. These changes culminate in membrane stiffness variations. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-03 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/184309 Domingues, Marco M.; Gomes, Bárbara; Hollmann, Axel; Santos, Nuno C.; 25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties; MDPI AG; International Journal of Molecular Sciences; 22; 5; 3-2021; 1-12 1422-0067 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/184309 |
identifier_str_mv |
Domingues, Marco M.; Gomes, Bárbara; Hollmann, Axel; Santos, Nuno C.; 25-Hydroxycholesterol Effect on Membrane Structure andMechanical Properties; MDPI AG; International Journal of Molecular Sciences; 22; 5; 3-2021; 1-12 1422-0067 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1422-0067/22/5/2574 info:eu-repo/semantics/altIdentifier/doi/10.3390/ijms22052574 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
MDPI AG |
publisher.none.fl_str_mv |
MDPI AG |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844614447928180736 |
score |
13.070432 |