Novel Murine Models of Cerebral Cavernous Malformations

Abstract Cerebral cavernous malformations (CCMs) are ectatic capillary-venous malformations that develop in approximately 0.5% of the population. Patients with CCMs may develop headaches, focal neurologic deficits, seizures, and hemorrhages. While symptomatic CCMs, depending upon the anatomic location, can be surgically removed, there is currently no pharmaceutical therapy to treat CCMs. Several mouse models have been developed to better understand CCM pathogenesis and test therapeutics. The most common mouse models induce a large CCM burden that is anatomically restricted to the cerebellum and contributes to lethality in the early days of life. These inducible models thus have a relatively short period for drug administration. We developed an inducible CCM3 mouse model that develops CCMs after weaning and provides a longer period for potential therapeutic intervention. Using this new model, three recently proposed CCM therapies, fasudil, tempol, vitamin $ D_{3} $, and a combination of the three drugs, failed to substantially reduce CCM formation when treatment was administered for 5 weeks, from postnatal day 21 (P21) to P56. We next restricted Ccm3 deletion to the brain vasculature and provided greater time (121 days) for CCMs to develop chronic hemorrhage, recapitulating the human lesions. We also developed the first model of acute CCM hemorrhage by injecting mice harboring CCMs with lipopolysaccharide. These efficient models will enable future drug studies to more precisely target clinically relevant features of CCM disease: CCM formation, chronic hemorrhage, and acute hemorrhage..

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:23

Enthalten in:

Angiogenesis - 23(2020), 4 vom: 24. Juli, Seite 651-666

Sprache:

Englisch

Beteiligte Personen:

Detter, Matthew R. [VerfasserIn]
Shenkar, Robert [VerfasserIn]
Benavides, Christian R. [VerfasserIn]
Neilson, Catherine A. [VerfasserIn]
Moore, Thomas [VerfasserIn]
Lightle, Rhonda [VerfasserIn]
Hobson, Nicholas [VerfasserIn]
Shen, Le [VerfasserIn]
Cao, Ying [VerfasserIn]
Girard, Romuald [VerfasserIn]
Zhang, Dongdong [VerfasserIn]
Griffin, Erin [VerfasserIn]
Gallione, Carol J. [VerfasserIn]
Awad, Issam A. [VerfasserIn]
Marchuk, Douglas A. [VerfasserIn]

Links:

Volltext [lizenzpflichtig]

BKL:

44.85$jKardiologie$jAngiologie

Themen:

CCM
Cavernous angioma
Cerebral cavernous malformation
Cerebral hemorrhage
Fasudil
Lipopolysaccharide
Stroke
Tempol
Vitamin D

Anmerkungen:

© Springer Nature B.V. 2020

doi:

10.1007/s10456-020-09736-8

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

OLC2119710112

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