Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy

Autores
Galan, Alba; Barcelona, Pablo Federico; Nedev, Hinyu; Sarunic, Marinko V.; Jian, Yifan; Saragovi, H. Uri
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The p75NTR is a novel therapeutic target validated in a streptozotocin mouse model of diabetic retinopathy. Intravitreal (IVT) injection of small molecule p75NTR antagonist THX-B was therapeutic and resolved the inflammatory, vascular, and neurodegenerative phases of the retinal pathology. To simplify clinical translation, we sought a superior drug delivery method that circumvents risks associated with IVT injections. METHODS. We compared the pharmacokinetics of a single 40 lg subconjunctival (SCJ) depot to the reported effective 5 lg IVT injections of THX-B. We quantified therapeutic efficacy, with endpoints of inflammation, edema, and neuronal death. RESULTS. The subconjunctival depot affords retinal exposure equal to IVT injection, without resulting in detectable drug in circulation. At week 2 of diabetic retinopathy, the SCJ depot provided therapeutic efficacy similar to IVT injections, with reduced inflammation, reduced edema, reduced neuronal death, and a long-lasting protection of the retinal structure. CONCLUSIONS. Subconjunctival injections are a safe and effective route for retinal delivery of p75NTR antagonists. The subconjunctival route offers an advantageous, less-invasive, more compliant, and nonsystemic method to deliver p75NTR antagonists for the treatment of retinal diseases.
Fil: Galan, Alba. Mc Gill University. Lady Davis Research Intitute; Canadá
Fil: Barcelona, Pablo Federico. Mc Gill University. Lady Davis Research Intitute; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología; Argentina
Fil: Nedev, Hinyu. Mc Gill University. Lady Davis Research Intitute; Canadá
Fil: Sarunic, Marinko V.. University Fraser Simon; Canadá
Fil: Jian, Yifan. University Fraser Simon; Canadá
Fil: Saragovi, H. Uri. Mc Gill University. Lady Davis Research Intitute; Canadá
Materia
ANTAGONIST
DIABETIC RETINOPATHY
P75 RECEPTOR
SUBCONJUNCTIVAL
TARGET
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/48639
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/48639
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathyGalan, AlbaBarcelona, Pablo FedericoNedev, HinyuSarunic, Marinko V.Jian, YifanSaragovi, H. UriANTAGONISTDIABETIC RETINOPATHYP75 RECEPTORSUBCONJUNCTIVALTARGEThttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3The p75NTR is a novel therapeutic target validated in a streptozotocin mouse model of diabetic retinopathy. Intravitreal (IVT) injection of small molecule p75NTR antagonist THX-B was therapeutic and resolved the inflammatory, vascular, and neurodegenerative phases of the retinal pathology. To simplify clinical translation, we sought a superior drug delivery method that circumvents risks associated with IVT injections. METHODS. We compared the pharmacokinetics of a single 40 lg subconjunctival (SCJ) depot to the reported effective 5 lg IVT injections of THX-B. We quantified therapeutic efficacy, with endpoints of inflammation, edema, and neuronal death. RESULTS. The subconjunctival depot affords retinal exposure equal to IVT injection, without resulting in detectable drug in circulation. At week 2 of diabetic retinopathy, the SCJ depot provided therapeutic efficacy similar to IVT injections, with reduced inflammation, reduced edema, reduced neuronal death, and a long-lasting protection of the retinal structure. CONCLUSIONS. Subconjunctival injections are a safe and effective route for retinal delivery of p75NTR antagonists. The subconjunctival route offers an advantageous, less-invasive, more compliant, and nonsystemic method to deliver p75NTR antagonists for the treatment of retinal diseases.Fil: Galan, Alba. Mc Gill University. Lady Davis Research Intitute; CanadáFil: Barcelona, Pablo Federico. Mc Gill University. Lady Davis Research Intitute; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología; ArgentinaFil: Nedev, Hinyu. Mc Gill University. Lady Davis Research Intitute; CanadáFil: Sarunic, Marinko V.. University Fraser Simon; CanadáFil: Jian, Yifan. University Fraser Simon; CanadáFil: Saragovi, H. Uri. Mc Gill University. Lady Davis Research Intitute; CanadáAssociation for Research in Vision and Ophthalmology2017-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/48639Galan, Alba; Barcelona, Pablo Federico; Nedev, Hinyu; Sarunic, Marinko V.; Jian, Yifan; et al.; Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy; Association for Research in Vision and Ophthalmology; Investigative Ophthalmology & Visual Science; 58; 7; 6-2017; 2852-28620146-04041552-5783CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.ncbi.nlm.nih.gov/pubmed/28570737info:eu-repo/semantics/altIdentifier/doi/10.1167/iovs.16-20988info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:31:09Zoai:ri.conicet.gov.ar:11336/48639instacron: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:34982025-10-15 14:31:10.099CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
title Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
spellingShingle Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
Galan, Alba
ANTAGONIST
DIABETIC RETINOPATHY
P75 RECEPTOR
SUBCONJUNCTIVAL
TARGET
title_short Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
title_full Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
title_fullStr Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
title_full_unstemmed Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
title_sort Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy
dc.creator.none.fl_str_mv Galan, Alba
Barcelona, Pablo Federico
Nedev, Hinyu
Sarunic, Marinko V.
Jian, Yifan
Saragovi, H. Uri
author Galan, Alba
author_facet Galan, Alba
Barcelona, Pablo Federico
Nedev, Hinyu
Sarunic, Marinko V.
Jian, Yifan
Saragovi, H. Uri
author_role author
author2 Barcelona, Pablo Federico
Nedev, Hinyu
Sarunic, Marinko V.
Jian, Yifan
Saragovi, H. Uri
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv ANTAGONIST
DIABETIC RETINOPATHY
P75 RECEPTOR
SUBCONJUNCTIVAL
TARGET
topic ANTAGONIST
DIABETIC RETINOPATHY
P75 RECEPTOR
SUBCONJUNCTIVAL
TARGET
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.1
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv The p75NTR is a novel therapeutic target validated in a streptozotocin mouse model of diabetic retinopathy. Intravitreal (IVT) injection of small molecule p75NTR antagonist THX-B was therapeutic and resolved the inflammatory, vascular, and neurodegenerative phases of the retinal pathology. To simplify clinical translation, we sought a superior drug delivery method that circumvents risks associated with IVT injections. METHODS. We compared the pharmacokinetics of a single 40 lg subconjunctival (SCJ) depot to the reported effective 5 lg IVT injections of THX-B. We quantified therapeutic efficacy, with endpoints of inflammation, edema, and neuronal death. RESULTS. The subconjunctival depot affords retinal exposure equal to IVT injection, without resulting in detectable drug in circulation. At week 2 of diabetic retinopathy, the SCJ depot provided therapeutic efficacy similar to IVT injections, with reduced inflammation, reduced edema, reduced neuronal death, and a long-lasting protection of the retinal structure. CONCLUSIONS. Subconjunctival injections are a safe and effective route for retinal delivery of p75NTR antagonists. The subconjunctival route offers an advantageous, less-invasive, more compliant, and nonsystemic method to deliver p75NTR antagonists for the treatment of retinal diseases.
Fil: Galan, Alba. Mc Gill University. Lady Davis Research Intitute; Canadá
Fil: Barcelona, Pablo Federico. Mc Gill University. Lady Davis Research Intitute; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología; Argentina
Fil: Nedev, Hinyu. Mc Gill University. Lady Davis Research Intitute; Canadá
Fil: Sarunic, Marinko V.. University Fraser Simon; Canadá
Fil: Jian, Yifan. University Fraser Simon; Canadá
Fil: Saragovi, H. Uri. Mc Gill University. Lady Davis Research Intitute; Canadá
description The p75NTR is a novel therapeutic target validated in a streptozotocin mouse model of diabetic retinopathy. Intravitreal (IVT) injection of small molecule p75NTR antagonist THX-B was therapeutic and resolved the inflammatory, vascular, and neurodegenerative phases of the retinal pathology. To simplify clinical translation, we sought a superior drug delivery method that circumvents risks associated with IVT injections. METHODS. We compared the pharmacokinetics of a single 40 lg subconjunctival (SCJ) depot to the reported effective 5 lg IVT injections of THX-B. We quantified therapeutic efficacy, with endpoints of inflammation, edema, and neuronal death. RESULTS. The subconjunctival depot affords retinal exposure equal to IVT injection, without resulting in detectable drug in circulation. At week 2 of diabetic retinopathy, the SCJ depot provided therapeutic efficacy similar to IVT injections, with reduced inflammation, reduced edema, reduced neuronal death, and a long-lasting protection of the retinal structure. CONCLUSIONS. Subconjunctival injections are a safe and effective route for retinal delivery of p75NTR antagonists. The subconjunctival route offers an advantageous, less-invasive, more compliant, and nonsystemic method to deliver p75NTR antagonists for the treatment of retinal diseases.
publishDate 2017
dc.date.none.fl_str_mv 2017-06
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/11336/48639
Galan, Alba; Barcelona, Pablo Federico; Nedev, Hinyu; Sarunic, Marinko V.; Jian, Yifan; et al.; Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy; Association for Research in Vision and Ophthalmology; Investigative Ophthalmology & Visual Science; 58; 7; 6-2017; 2852-2862
0146-0404
1552-5783
CONICET Digital
CONICET
url http://hdl.handle.net/11336/48639
identifier_str_mv Galan, Alba; Barcelona, Pablo Federico; Nedev, Hinyu; Sarunic, Marinko V.; Jian, Yifan; et al.; Subconjunctival delivery of p75NTR antagonists reduces the inflammatory, vascular, and neurodegenerative pathologies of diabetic retinopathy; Association for Research in Vision and Ophthalmology; Investigative Ophthalmology & Visual Science; 58; 7; 6-2017; 2852-2862
0146-0404
1552-5783
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.ncbi.nlm.nih.gov/pubmed/28570737
info:eu-repo/semantics/altIdentifier/doi/10.1167/iovs.16-20988
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Association for Research in Vision and Ophthalmology
publisher.none.fl_str_mv Association for Research in Vision and Ophthalmology
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_ 1846082793258352640
score 13.22299

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