ArticleHuman gene therapy2018
A Calsequestrin Cis-Regulatory Motif Coupled to a Cardiac Troponin T Promoter Improves Cardiac Adeno-Associated Virus Serotype 9 Transduction Specificity.
Article in Human gene therapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 18 citations in OpenAlex.
- Targeting of Cdc42-Interacting Protein 4-Calcineurin Signalosomes Improves Cardiac Structure and Function After Myocardial Infarction.Journal of the American Heart Association · 2026Article
- Cardiac troponin T promoters lead the way: optimizing cardiac specificity in AAV-mediated gene therapy.Gene therapy · 2026Article
- Review
- Transcriptional Targeting Approaches in Cardiac Gene Transfer Using AAV Vectors.Pathogens (Basel, Switzerland) · 2023Review
- Distribution of cardiomyocyte-selective adeno-associated virus serotype 9 vectors in swine following intracoronary and intravenous infusion.Physiological genomics · 2022Article
- Hydroxylation ofFrontiers in medicine · 2021Article
- Gene therapy for inherited arrhythmias.Cardiovascular research · 2020Review
- MiR-21 protected against diabetic cardiomyopathy induced diastolic dysfunction by targeting gelsolin.Cardiovascular diabetology · 2018Article
Corrections and comments
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Authors and funding
14 authors at 3 institutions in 2 countries.
Funding
Abstract
Adeno-associated virus serotype 9 (AAV9) is an efficient vector for gene transfer to the myocardium. However, the use of ubiquitous promoters, such as the cytomegalovirus (CMV) promoter, can result in expression of the transgene in organs other than the heart. This study tested if the efficiency and specificity of cardiac transcription from a chicken cardiac troponin T (TnT) promoter could be further increased by incorporating a cardiomyocyte-specific transcriptional cis-regulatory motif from human calsequestrin 2 (CS-CRM4) into the expression cassette (Enh.TnT). The efficiency of luciferase expression from the TnT and Enh.TnT constructs was compared to expression of luciferase under the control of the CMV promoter in both adult and neonatal mice. Overall, expression levels of luciferase in the heart were similar in mice injected with AAV9.TnT.Luc, AAV9.Enh.TnT.Luc and AAV9.CMV.Luc. In contrast, expression levels of luciferase activity in nontarget organs, including the liver and muscle, was lower in mice injected with the AAV9.TnT.Luc compared to AAV9.CMV.Luc and was negligible with AAV9.Enh.TnT. In neonates, in organs other than the heart, luciferase expression levels were too low to be quantified for all constructs. Taken together, the data show that the AAV9 Enh.TnT constructs drives high levels of expression of the transgene in the myocardium, with insignificant expression in other organs. These properties reduce the risks associated with the AAV9-mediated expression of the therapeutic protein of interest in nontarget organs. The excellent cardiac specificity should allow for the use of higher vector doses than are currently used, which might be essential to achieve the levels of transgene expression necessary for therapeutic benefits. Taken together, the findings suggest that the Enh.TnT transcription unit is a potentially attractive tool for clinical cardiac gene therapy in adults.
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Registered trials
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