An update on primary familial brain calcification.
Roberta R Lemos1, J B M M Ferreira, Matthew P Keasey
1Universidad de Santiago de Compostela, Santiago de Compostela, Spain; Fundación Pública Galega de Medicina Xenómica-SERGAS-IDIS (Hospital Clínico Universitario), Santiago de Compostela, Spain.
International Review of Neurobiology
|November 12, 2013
Summary
Primary familial brain calcifications (PFBC) are linked to mutations in SLC20A2, PDGFRB, and PDGFB genes. These genetic discoveries offer new therapeutic targets for PFBC patients.
Area of Science:
- Neurogenetics
- Molecular Medicine
- Rare Diseases
Background:
- Primary familial brain calcifications (PFBC) are inherited neurological disorders.
- PFBC patients exhibit bilateral brain calcifications and diverse neurological symptoms.
- Increased neuroimaging has led to greater PFBC detection.
Purpose of the Study:
- To investigate the genetic basis of PFBC.
- To identify novel genes associated with PFBC.
- To explore new therapeutic strategies for PFBC.
Main Methods:
- Genetic sequencing of affected families.
- Analysis of mutations in candidate genes.
- Review of clinical and imaging data.
Main Results:
- Mutations in SLC20A2, a phosphate transporter gene, account for approximately 40% of PFBC cases.
- Mutations in PDGFRB and PDGFB genes, involved in the PDGF pathway, were identified in additional PFBC families.
- These findings expand the known genetic landscape of PFBC beyond phosphate homeostasis.
Conclusions:
- Genetic mutations in SLC20A2, PDGFRB, and PDGFB are key drivers of PFBC.
- The identification of the PDGF pathway in PFBC pathogenesis opens new therapeutic avenues.
- Targeting phosphate transport and PDGF signaling may offer novel treatment strategies for PFBC.
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