In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging

Vorontsova, Irene - Vallmitjana, Alexander - Torrado, Belén - Schilling, Thomas F. - Hall, James E. - Gratton, Enrico - Malacrida, Leonel

Resumen:

Macromolecular crowding is crucial for cellular homeostasis. In vivo studies of macromolecular crowding and water dynamics are needed to understand their roles in cellular physiology and fate determination. Macromolecular crowding in the lens is essential for normal optics, and an understanding of its regulation will help prevent cataract and presbyopia. Here, we combine the use of the nanoenvironmental sensor [6-acetyl-2-dimethylaminonaphthalene (ACDAN)] to visualize lens macromolecular crowding with in vivo studies of aquaporin 0 zebrafish mutants that disrupt its regulation. Spectral phasor analysis of ACDAN fluorescence reveals water dipolar relaxation and demonstrates that mutations in two zebrafish aquaporin 0s, Aqp0a and Aqp0b, alter water state and macromolecular crowding in living lenses. Our results provide in vivo evidence that Aqp0a promotes fluid influx in the deeper lens cortex, whereas Aqp0b facilitates fluid efflux. This evidence reveals previously unidentified spatial regulation of macromolecular crowding and spatially distinct roles for Aqp0 in the lens.

Detalles Bibliográficos
2022
ANIMALES
GENÉTICA
ACUAPORINAS
PROTEÍNAS DEL OJO
METABOLISMO
CRISTALINO
PEZ CEBRA
AGUA
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/55180
Acceso abierto
Licencia Creative Commons Atribución - No Comercial (CC - By-NC 4.0)
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author Vorontsova, Irene
author2 Vallmitjana, Alexander
Torrado, Belén
Schilling, Thomas F.
Hall, James E.
Gratton, Enrico
Malacrida, Leonel
author2_role author
author
author
author
author
author
author_facet Vorontsova, Irene
Vallmitjana, Alexander
Torrado, Belén
Schilling, Thomas F.
Hall, James E.
Gratton, Enrico
Malacrida, Leonel
author_role author
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collection COLIBRI
dc.contributor.filiacion.none.fl_str_mv Vorontsova Irene, University of California San Francisco (E.E.U.U.). Developmental and Cell Biology, Physiology and Biophysics and Neurobiology and Behavior
Vallmitjana Alexander, University of California San Francisco (E.E.U.U.). Biomedical Engineering
Torrado Belén, University of California San Francisco (E.E.U.U.). Biomedical Engineering
Schilling Thomas F., University of California San Francisco (E.E.U.U.). Developmental and Cell Biology
Hall James E., University of California San Francisco (E.E.U.U.). Physiology and Biophysics
Gratton Enrico, University of California San Francisco (E.E.U.U.). Biomedical Engineering
Malacrida Leonel, Universidad de la República (Uruguay). Facultad de Medicina. Hospital de Clínicas. Departamento de Fisiopatología; Institut Pasteur de Montevideo (Uruguay)
dc.creator.none.fl_str_mv Vorontsova, Irene
Vallmitjana, Alexander
Torrado, Belén
Schilling, Thomas F.
Hall, James E.
Gratton, Enrico
Malacrida, Leonel
dc.date.accessioned.none.fl_str_mv 2026-05-25T18:43:53Z
dc.date.available.none.fl_str_mv 2026-05-25T18:43:53Z
dc.date.issued.none.fl_str_mv 2022
dc.description.abstract.none.fl_txt_mv Macromolecular crowding is crucial for cellular homeostasis. In vivo studies of macromolecular crowding and water dynamics are needed to understand their roles in cellular physiology and fate determination. Macromolecular crowding in the lens is essential for normal optics, and an understanding of its regulation will help prevent cataract and presbyopia. Here, we combine the use of the nanoenvironmental sensor [6-acetyl-2-dimethylaminonaphthalene (ACDAN)] to visualize lens macromolecular crowding with in vivo studies of aquaporin 0 zebrafish mutants that disrupt its regulation. Spectral phasor analysis of ACDAN fluorescence reveals water dipolar relaxation and demonstrates that mutations in two zebrafish aquaporin 0s, Aqp0a and Aqp0b, alter water state and macromolecular crowding in living lenses. Our results provide in vivo evidence that Aqp0a promotes fluid influx in the deeper lens cortex, whereas Aqp0b facilitates fluid efflux. This evidence reveals previously unidentified spatial regulation of macromolecular crowding and spatially distinct roles for Aqp0 in the lens.
dc.format.extent.es.fl_str_mv 14 p.
dc.format.mimetype.es.fl_str_mv application/pdf
dc.identifier.citation.es.fl_str_mv Vorontsova I, Vallmitjana A, Torrado B y otros. In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging. Science Advances [en línea]. 2022;8(7). 14 p.
dc.identifier.doi.none.fl_str_mv 10.1126/sciadv.abj4833
dc.identifier.eissn.none.fl_str_mv 2375-2548
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12008/55180
dc.language.iso.none.fl_str_mv en
eng
dc.publisher.es.fl_str_mv American Association for the Advancement of Science
dc.relation.none.fl_str_mv Science Advances. 2022;8(7)
dc.rights.license.none.fl_str_mv Licencia Creative Commons Atribución - No Comercial (CC - By-NC 4.0)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.source.none.fl_str_mv reponame:COLIBRI
instname:Universidad de la República
instacron:Universidad de la República
dc.subject.other.es.fl_str_mv ANIMALES
GENÉTICA
ACUAPORINAS
PROTEÍNAS DEL OJO
METABOLISMO
CRISTALINO
PEZ CEBRA
AGUA
dc.title.none.fl_str_mv In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
dc.type.es.fl_str_mv Artículo
dc.type.none.fl_str_mv info:eu-repo/semantics/article
dc.type.version.none.fl_str_mv info:eu-repo/semantics/publishedVersion
description Macromolecular crowding is crucial for cellular homeostasis. In vivo studies of macromolecular crowding and water dynamics are needed to understand their roles in cellular physiology and fate determination. Macromolecular crowding in the lens is essential for normal optics, and an understanding of its regulation will help prevent cataract and presbyopia. Here, we combine the use of the nanoenvironmental sensor [6-acetyl-2-dimethylaminonaphthalene (ACDAN)] to visualize lens macromolecular crowding with in vivo studies of aquaporin 0 zebrafish mutants that disrupt its regulation. Spectral phasor analysis of ACDAN fluorescence reveals water dipolar relaxation and demonstrates that mutations in two zebrafish aquaporin 0s, Aqp0a and Aqp0b, alter water state and macromolecular crowding in living lenses. Our results provide in vivo evidence that Aqp0a promotes fluid influx in the deeper lens cortex, whereas Aqp0b facilitates fluid efflux. This evidence reveals previously unidentified spatial regulation of macromolecular crowding and spatially distinct roles for Aqp0 in the lens.
eu_rights_str_mv openAccess
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identifier_str_mv Vorontsova I, Vallmitjana A, Torrado B y otros. In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging. Science Advances [en línea]. 2022;8(7). 14 p.
10.1126/sciadv.abj4833
2375-2548
instacron_str Universidad de la República
institution Universidad de la República
instname_str Universidad de la República
language eng
language_invalid_str_mv en
network_acronym_str COLIBRI
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publishDate 2022
reponame_str COLIBRI
repository.mail.fl_str_mv karina.camps@seciu.edu.uy
repository.name.fl_str_mv COLIBRI - Universidad de la República
repository_id_str 4771
rights_invalid_str_mv Licencia Creative Commons Atribución - No Comercial (CC - By-NC 4.0)
spelling Vorontsova Irene, University of California San Francisco (E.E.U.U.). Developmental and Cell Biology, Physiology and Biophysics and Neurobiology and BehaviorVallmitjana Alexander, University of California San Francisco (E.E.U.U.). Biomedical EngineeringTorrado Belén, University of California San Francisco (E.E.U.U.). Biomedical EngineeringSchilling Thomas F., University of California San Francisco (E.E.U.U.). Developmental and Cell BiologyHall James E., University of California San Francisco (E.E.U.U.). Physiology and BiophysicsGratton Enrico, University of California San Francisco (E.E.U.U.). Biomedical EngineeringMalacrida Leonel, Universidad de la República (Uruguay). Facultad de Medicina. Hospital de Clínicas. Departamento de Fisiopatología; Institut Pasteur de Montevideo (Uruguay)2026-05-25T18:43:53Z2026-05-25T18:43:53Z2022Vorontsova I, Vallmitjana A, Torrado B y otros. In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging. Science Advances [en línea]. 2022;8(7). 14 p.https://hdl.handle.net/20.500.12008/5518010.1126/sciadv.abj48332375-2548Macromolecular crowding is crucial for cellular homeostasis. In vivo studies of macromolecular crowding and water dynamics are needed to understand their roles in cellular physiology and fate determination. Macromolecular crowding in the lens is essential for normal optics, and an understanding of its regulation will help prevent cataract and presbyopia. Here, we combine the use of the nanoenvironmental sensor [6-acetyl-2-dimethylaminonaphthalene (ACDAN)] to visualize lens macromolecular crowding with in vivo studies of aquaporin 0 zebrafish mutants that disrupt its regulation. Spectral phasor analysis of ACDAN fluorescence reveals water dipolar relaxation and demonstrates that mutations in two zebrafish aquaporin 0s, Aqp0a and Aqp0b, alter water state and macromolecular crowding in living lenses. Our results provide in vivo evidence that Aqp0a promotes fluid influx in the deeper lens cortex, whereas Aqp0b facilitates fluid efflux. This evidence reveals previously unidentified spatial regulation of macromolecular crowding and spatially distinct roles for Aqp0 in the lens.Submitted by Almiñana María Cecilia (marialminana@gmail.com) on 2026-05-25T16:27:28Z No. of bitstreams: 2 license_rdf: 26648 bytes, checksum: e9507f17d292a045f834ee111e4d098b (MD5) In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens.pdf: 27668508 bytes, checksum: 5b7daf330791b2fffd00fd9c55ef812e (MD5)Approved for entry into archive by Almiñana María Cecilia (marialminana@gmail.com) on 2026-05-25T17:57:53Z (GMT) No. of bitstreams: 2 license_rdf: 26648 bytes, checksum: e9507f17d292a045f834ee111e4d098b (MD5) In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens.pdf: 27668508 bytes, checksum: 5b7daf330791b2fffd00fd9c55ef812e (MD5)Made available in DSpace by Camps Karina (karina.camps@seciu.edu.uy) on 2026-05-25T18:43:53Z (GMT). No. of bitstreams: 2 license_rdf: 26648 bytes, checksum: e9507f17d292a045f834ee111e4d098b (MD5) In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens.pdf: 27668508 bytes, checksum: 5b7daf330791b2fffd00fd9c55ef812e (MD5) Previous issue date: 202214 p.application/pdfenengAmerican Association for the Advancement of ScienceScience Advances. 2022;8(7)Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. 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charset=utf-847http://localhost:8080/xmlui/bitstream/20.500.12008/55180/2/license_url966d4a1cc97b2c4389b5142dd97d3c7fMD52license_textlicense_texttext/html; charset=utf-834460http://localhost:8080/xmlui/bitstream/20.500.12008/55180/3/license_texta7687849d40e295453d8da39c8aead05MD53license_rdflicense_rdfapplication/rdf+xml; charset=utf-826648http://localhost:8080/xmlui/bitstream/20.500.12008/55180/4/license_rdfe9507f17d292a045f834ee111e4d098bMD54ORIGINALIn vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens.pdfIn vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens.pdfapplication/pdf27668508http://localhost:8080/xmlui/bitstream/20.500.12008/55180/1/In+vivo+macromolecular+crowding+is+differentially+modulated+by+aquaporin+0+in+zebrafish+lens.pdf5b7daf330791b2fffd00fd9c55ef812eMD5120.500.12008/551802026-05-25 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- Universidad de la Repúblicafalse
spellingShingle In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
Vorontsova, Irene
ANIMALES
GENÉTICA
ACUAPORINAS
PROTEÍNAS DEL OJO
METABOLISMO
CRISTALINO
PEZ CEBRA
AGUA
status_str publishedVersion
title In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
title_full In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
title_fullStr In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
title_full_unstemmed In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
title_short In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
title_sort In vivo macromolecular crowding is differentially modulated by aquaporin 0 in zebrafish lens: Insights from a nanoenvironment sensor and spectral imaging
topic ANIMALES
GENÉTICA
ACUAPORINAS
PROTEÍNAS DEL OJO
METABOLISMO
CRISTALINO
PEZ CEBRA
AGUA
url https://hdl.handle.net/20.500.12008/55180