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Recent Topics in Fibrodysplasia Ossificans Progressiva.


ABSTRACT: Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disease that is characterized by the formation of heterotopic bone tissues in soft tissues, such as skeletal muscle, ligament, and tendon. It is difficult to remove such heterotopic bones via internal medicine or invasive procedures. The identification of activin A receptor, type I (ACVR1)/ALK2 gene mutations associated with FOP has allowed the genetic diagnosis of FOP. The ACVR1/ALK2 gene encodes the ALK2 protein, which is a transmembrane kinase receptor in the transforming growth factor-? family. The relevant mutations activate intracellular signaling in vitro and induce heterotopic bone formation in vivo. Activin A is a potential ligand that activates mutant ALK2 but not wild-type ALK2. Various types of small chemical and biological inhibitors of ALK2 signaling have been developed to establish treatments for FOP. Some of these are in clinical trials in patients with FOP.

SUBMITTER: Katagiri T 

PROVIDER: S-EPMC6145951 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Recent Topics in Fibrodysplasia Ossificans Progressiva.

Katagiri Takenobu T   Tsukamoto Sho S   Nakachi Yutaka Y   Kuratani Mai M  

Endocrinology and metabolism (Seoul, Korea) 20180901 3


Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disease that is characterized by the formation of heterotopic bone tissues in soft tissues, such as skeletal muscle, ligament, and tendon. It is difficult to remove such heterotopic bones via internal medicine or invasive procedures. The identification of activin A receptor, type I <i>(ACVR1)/ALK2</i> gene mutations associated with FOP has allowed the genetic diagnosis of FOP. The <i>ACVR1/ALK2</i> gene encodes the ALK2 protein, which  ...[more]

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