A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 143

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 143
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 209
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 994
Function: getPubMedXML

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3134
Function: GetPubMedArticleOutput_2016

File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

AAV-mediated interneuron-specific gene replacement for Dravet syndrome. | LitMetric

Dravet syndrome (DS) is a devastating developmental epileptic encephalopathy marked by treatment-resistant seizures, developmental delay, intellectual disability, motor deficits, and a 10-20% rate of premature death. Most DS patients harbor loss-of-function mutations in one copy of , which has been associated with inhibitory neuron dysfunction. Here we developed an interneuron-targeting AAV human gene replacement therapy using cell class-specific enhancers. We generated a split-intein fusion form of to circumvent AAV packaging limitations and deliver via a dual vector approach using cell class-specific enhancers. These constructs produced full-length Na 1.1 protein and functional sodium channels in HEK293 cells and in brain cells . After packaging these vectors into enhancer-AAVs and administering to mice, immunohistochemical analyses showed telencephalic GABAergic interneuron-specific and dose-dependent transgene biodistribution. These vectors conferred strong dose-dependent protection against postnatal mortality and seizures in two DS mouse models carrying independent loss-of-function alleles of at two independent research sites, supporting the robustness of this approach. No mortality or toxicity was observed in wild-type mice injected with single vectors expressing either the N-terminal or C-terminal halves of , or the dual vector system targeting interneurons. In contrast, nonselective neuronal targeting of conferred less rescue against mortality and presented substantial preweaning lethality. These findings demonstrate proof-of-concept that interneuron-specific AAV-mediated gene replacement is sufficient for significant rescue in DS mouse models and suggest it could be an effective therapeutic approach for patients with DS.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10760176PMC
http://dx.doi.org/10.1101/2023.12.15.571820DOI Listing

Publication Analysis

Top Keywords

gene replacement
12
dravet syndrome
8
cell class-specific
8
class-specific enhancers
8
dual vector
8
mouse models
8
aav-mediated interneuron-specific
4
interneuron-specific gene
4
replacement dravet
4
syndrome dravet
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!