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Expression of β1 Adrenergic Receptor in Vascular Anomalies in Children

Overview
Journal J Int Med Res
Publisher Sage Publications
Specialty General Medicine
Date 2021 Sep 30
PMID 34590496
Citations 1
Authors
Affiliations
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Abstract

Objective: Controversial, heterogeneous, and inconsistent responses to beta-blockers have been reported in some cases of infantile proliferative hemangiomas. On the basis of these clinical observations, we aimed to examine the β1 adrenergic receptor (β1-AR) protein expression distribution among different types of pediatric vascular anomalies.

Methods: Immunohistochemistry (IHC) was performed for β1-AR on 43 surgical specimens.

Results: We found positive β1-AR IHC staining in all intramuscular hemangiomas, capillary-lymphatic, lymphatic, venous, and combined malformations, and Masson's tumor cases, as well as in 7 of 10 cases of proliferative infantile hemangiomas.

Conclusions: Our research demonstrates, for the first time, the degree of heterogeneous expression of β1-AR among pediatric vascular malformations. Our results support the need for β1-AR assessment in pediatric vascular anomalies to select cases with a robust response to β1-selective blockers. β1-AR assessment may have a strong impact on therapeutic refinement for pediatric vascular anomalies by selecting cases with a stronger response to beta-blockers.

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Li W, McCurdy S, Lopez-Ramirez M, Lee H, Ginsberg M Elife. 2025; 13.

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Genetic Inactivation of the β1 adrenergic receptor prevents Cerebral Cavernous Malformations in zebrafish.

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