Intronic CRISPR repair in a preclinical model of Noonan Syndrome-Associated Cardiomyopathy
Background: - Noonan syndrome (NS) is a multisystemic developmental disorder characterized by common, clinically variable symptoms, such as typical facial dysmorphisms, short stature, developmental delay, intellectual disability as well as cardiac hypertrophy. The underlying mechanism is a gain-of-f...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
September 15, 2020
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| In: |
Circulation
Year: 2020, Jahrgang: 142, Heft: 11, Pages: 1059-1076 |
| ISSN: | 1524-4539 |
| DOI: | 10.1161/CIRCULATIONAHA.119.044794 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1161/CIRCULATIONAHA.119.044794 Verlag, lizenzpflichtig, Volltext: https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.119.044794 
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| Verfasserangaben: | Ulrich Hanses, Mandy Kleinsorge, Lennart Roos, Gökhan Yigit, Yun Li, Boris Barbarics, Ibrahim El-Battrawy, Huan Lan, Malte Tiburcy, Robin Hindmarsh, Christof Lenz, Gabriela Salinas, Sebastian Diecke, Christian Müller, Ibrahim Adham, Janine Altmüller, Peter Nürnberg, Thomas Paul, Wolfram-Hubertus Zimmermann, Gerd Hasenfuss, Bernd Wollnik, Lukas Cyganek |
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| 245 | 1 | 0 | |a Intronic CRISPR repair in a preclinical model of Noonan Syndrome-Associated Cardiomyopathy |c Ulrich Hanses, Mandy Kleinsorge, Lennart Roos, Gökhan Yigit, Yun Li, Boris Barbarics, Ibrahim El-Battrawy, Huan Lan, Malte Tiburcy, Robin Hindmarsh, Christof Lenz, Gabriela Salinas, Sebastian Diecke, Christian Müller, Ibrahim Adham, Janine Altmüller, Peter Nürnberg, Thomas Paul, Wolfram-Hubertus Zimmermann, Gerd Hasenfuss, Bernd Wollnik, Lukas Cyganek |
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| 520 | |a Background: - Noonan syndrome (NS) is a multisystemic developmental disorder characterized by common, clinically variable symptoms, such as typical facial dysmorphisms, short stature, developmental delay, intellectual disability as well as cardiac hypertrophy. The underlying mechanism is a gain-of-function of the RAS-mitogen-activated protein kinase signaling pathway. However, our understanding of the pathophysiological alterations and mechanisms, especially of the associated cardiomyopathy, remains limited and effective therapeutic options are lacking. - Methods: - Here, we present a family with two siblings displaying an autosomal recessive form of NS with massive hypertrophic cardiomyopathy as clinically the most prevalent symptom caused by biallelic mutations within the leucine zipper-like transcription regulator 1 (LZTR1). We generated induced pluripotent stem cell-derived cardiomyocytes of the affected siblings and investigated the patient-specific cardiomyocytes on the molecular and functional level. - Results: - Patients’ induced pluripotent stem cell-derived cardiomyocytes recapitulated the hypertrophic phenotype and uncovered a so-far-not-described causal link between LZTR1 dysfunction, RAS-mitogen-activated protein kinase signaling hyperactivity, hypertrophic gene response and cellular hypertrophy. Calcium channel blockade and MEK inhibition could prevent some of the disease characteristics, providing a molecular underpinning for the clinical use of these drugs in patients with NS, but might not be a sustainable therapeutic option. In a proof-of-concept approach, we explored a clinically translatable intronic CRISPR (clustered regularly interspaced short palindromic repeats) repair and demonstrated a rescue of the hypertrophic phenotype. - Conclusions: - Our study revealed the human cardiac pathogenesis in patient-specific induced pluripotent stem cell-derived cardiomyocytes from NS patients carrying biallelic variants in LZTR1 and identified a unique disease-specific proteome signature. In addition, we identified the intronic CRISPR repair as a personalized and in our view clinically translatable therapeutic strategy to treat NS-associated hypertrophic cardiomyopathy. | ||
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| 700 | 1 | |a Li, Yun |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Lenz, Christof |e VerfasserIn |4 aut | |
| 700 | 1 | |a Salinas, Gabriela |e VerfasserIn |4 aut | |
| 700 | 1 | |a Diecke, Sebastian |e VerfasserIn |4 aut | |
| 700 | 1 | |a Müller, Christian |e VerfasserIn |4 aut | |
| 700 | 1 | |a Adham, Ibrahim |e VerfasserIn |4 aut | |
| 700 | 1 | |a Altmüller, Janine |e VerfasserIn |4 aut | |
| 700 | 1 | |a Nürnberg, Peter |e VerfasserIn |4 aut | |
| 700 | 1 | |a Paul, Thomas |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zimmermann, Wolfram-Hubertus |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hasenfuss, Gerd |e VerfasserIn |4 aut | |
| 700 | 1 | |a Wollnik, Bernd |e VerfasserIn |4 aut | |
| 700 | 1 | |a Cyganek, Lukas |e VerfasserIn |4 aut | |
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