A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype

Adenosine Deaminase 2 Deficiency (DADA2) syndrome is a rare monogenic disorder prevalently linked to recessive inherited loss of function mutations in the <i>ADA2/CECR1</i> gene. It consists of an immune systemic disease including autoinflammatory vasculopathies, with a frequent onset at...

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Main Authors: Silvia Vai, Erika Marin, Roberta Cosso, Francesco Saettini, Sonia Bonanomi, Alessandro Cattoni, Iacopo Chiodini, Luca Persani, Alberto Falchetti
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/15/8331
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author Silvia Vai
Erika Marin
Roberta Cosso
Francesco Saettini
Sonia Bonanomi
Alessandro Cattoni
Iacopo Chiodini
Luca Persani
Alberto Falchetti
author_facet Silvia Vai
Erika Marin
Roberta Cosso
Francesco Saettini
Sonia Bonanomi
Alessandro Cattoni
Iacopo Chiodini
Luca Persani
Alberto Falchetti
author_sort Silvia Vai
collection DOAJ
description Adenosine Deaminase 2 Deficiency (DADA2) syndrome is a rare monogenic disorder prevalently linked to recessive inherited loss of function mutations in the <i>ADA2/CECR1</i> gene. It consists of an immune systemic disease including autoinflammatory vasculopathies, with a frequent onset at infancy/early childhood age. DADA2 syndrome encompasses pleiotropic manifestations such as stroke, systemic vasculitis, hematologic alterations, and immunodeficiency. Although skeletal abnormalities have been reported in patients with this disease, clear information about skeletal health, with appropriate biochemical-clinical characterization/management, its evolution over time and any appropriate clinical management is still insufficient. In this paper, after a general introduction shortly reviewing the pathophysiology of Ada2 enzymatic protein, its potential role in bone health, we describe a case study of two 27 year-old DADA2 monozygotic female twins exhibiting bone mineral density and bone turnover rate abnormalities over the years of their clinical follow-up.
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spelling doaj.art-561562cbd27d4533911a770e01a845142023-11-22T05:46:51ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-08-012215833110.3390/ijms22158331A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related PhenotypeSilvia Vai0Erika Marin1Roberta Cosso2Francesco Saettini3Sonia Bonanomi4Alessandro Cattoni5Iacopo Chiodini6Luca Persani7Alberto Falchetti8Department of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, ItalyDepartment of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, ItalyIRCCS, Istituto Auxologico Italiano, San Giuseppe Hospital, 28824 Verbania, ItalyDepartment of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione MBBM, San Gerardo Hospital, 20100 Monza, ItalyDepartment of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione MBBM, San Gerardo Hospital, 20100 Monza, ItalyDepartment of Pediatrics, Università degli Studi di Milano-Bicocca, Fondazione MBBM, San Gerardo Hospital, 20100 Monza, ItalyDepartment of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, ItalyDepartment of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, ItalyDepartment of Endocrine and Metabolic Diseases, IRCCS, Istituto Auxologico Italiano, 20145 Milan, ItalyAdenosine Deaminase 2 Deficiency (DADA2) syndrome is a rare monogenic disorder prevalently linked to recessive inherited loss of function mutations in the <i>ADA2/CECR1</i> gene. It consists of an immune systemic disease including autoinflammatory vasculopathies, with a frequent onset at infancy/early childhood age. DADA2 syndrome encompasses pleiotropic manifestations such as stroke, systemic vasculitis, hematologic alterations, and immunodeficiency. Although skeletal abnormalities have been reported in patients with this disease, clear information about skeletal health, with appropriate biochemical-clinical characterization/management, its evolution over time and any appropriate clinical management is still insufficient. In this paper, after a general introduction shortly reviewing the pathophysiology of Ada2 enzymatic protein, its potential role in bone health, we describe a case study of two 27 year-old DADA2 monozygotic female twins exhibiting bone mineral density and bone turnover rate abnormalities over the years of their clinical follow-up.https://www.mdpi.com/1422-0067/22/15/8331rare diseasesDADA2 syndrome<i>ADA2/CECR1</i> genebone metabolismDXA analysisbone health
spellingShingle Silvia Vai
Erika Marin
Roberta Cosso
Francesco Saettini
Sonia Bonanomi
Alessandro Cattoni
Iacopo Chiodini
Luca Persani
Alberto Falchetti
A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype
International Journal of Molecular Sciences
rare diseases
DADA2 syndrome
<i>ADA2/CECR1</i> gene
bone metabolism
DXA analysis
bone health
title A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype
title_full A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype
title_fullStr A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype
title_full_unstemmed A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype
title_short A Novel Germline Mutation of <i>ADA2</i> Gene in Two “Discordant” Homozygous Female Twins Affected by Adenosine Deaminase 2 Deficiency: Description of the Bone-Related Phenotype
title_sort novel germline mutation of i ada2 i gene in two discordant homozygous female twins affected by adenosine deaminase 2 deficiency description of the bone related phenotype
topic rare diseases
DADA2 syndrome
<i>ADA2/CECR1</i> gene
bone metabolism
DXA analysis
bone health
url https://www.mdpi.com/1422-0067/22/15/8331
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