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Primary Familial Brain Calcification (PFBC)

Primary Familial Brain Calcification (PFBC)

There is no known treatment for primary familial brain calcification (PFBC), and the treatment remains focused solely on managing symptoms. At Protheragen, we are committed to creating advanced therapeutics and designing precise animal models capable of accelerating the preclinical studies of prospective therapies for PFBC. With Protheragen, clients can be sure that their research will receive the highest quality assistance, thus expediting the timeline for their drug development.

Introduction to Primary Familial Brain Calcification (PFBC)

Primary familial brain calcification (PFBC), or Fahr's disease, is a rare form of neurodegenerative disorder defined by the progressive development of bilateral calcifications within the basal ganglia, thalamus, cerebellum, and the white matter of the brain. PFBC is clinically differentiated by a range of neurological and psychiatric symptoms, which include movement disorders, cognitive impairment, and psychogenic features.

This graphic summarizes the main symptoms of primary familial brain calcification, the associated genes, and the disease mechanisms related to NAA60.Fig.1 This graphic summarizes the main symptoms of primary familial brain calcification (PFBC), the associated genes, and the disease mechanisms related to NAA60. (Chelban V, et al., 2024)

Pathogenesis of Primary Familial Brain Calcification (PFBC)

Primary familial brain calcification (PFBC) stems mainly from mutations in phosphate homeostasis genes (SLC20A2, XPR1), neurovascular integrity (PDGFB/PDGFRB), or cell adhesion (MYORG/JAM2) which result in abnormal calcium-phosphate deposition in the basal ganglia and other brain areas secondary to blood-brain barrier breakdown and modified brain barrier metabolism.

Schematic representation of the molecular mechanisms related to primary familial brain calcification-genes.Fig.2 Schematic representation of the molecular mechanisms related to primary familial brain calcification (PFBC)-genes. (Monfrini E, et al., 2023)

Therapeutic Development for Primary Familial Brain Calcification (PFBC)

Drug Names Mechanism of Action Targets Research Phase
Etidronate Bisphosphonate that binds hydroxyapatite crystals, inhibiting ectopic calcification Calcium-phosphate complexes in brain tissue Phase II
Cinacalcet Allosteric activator of calcium-sensing receptors (CaSR), modulating calcium-phosphate homeostasis Calcium-sensing receptors (CaSR) in parathyroid/kidney Early research
Recombinant PDGFB Recombinant platelet-derived growth factor BB restoring pericyte coverage at blood-brain barrier PDGFB/PDGFRβ signaling pathway Preclinical

Disclaimer: Protheragen focuses on providing preclinical research services. This table is for information exchange purposes only. This table is not a treatment plan recommendation. For guidance on treatment options, please visit a regular hospital.

Our Services

Protheragen is a frontrunner in research related to rare neurometabolic diseases, offering full-spectrum preclinical services to advance therapeutics for primary familial brain calcification (PFBC) from discovery to validation. We employ specialized genetic and modeling techniques to accurately replicate disease pathophysiology for study and intervention. We also utilize sophisticated blood-brain barrier (BBB) models for off-target effect evaluation and for central nervous system (CNS) drug delivery optimization with respect to neuroprotection and neurotherapeutics.

Therapeutic Development Services

Disease Model Development Services

  • Slc20a2 Knockout Model: Recapitulates PFBC through complete loss of the phosphate transporter PiT2, leading to progressive brain calcification in the basal ganglia.
  • Myorg Knockdown Model: Targets MYORG deficiency, demonstrating astrocyte dysfunction and perivascular calcifications.

Focusing on preclinical research, Protheragen offers comprehensive pharmacodynamic (PD), pharmacokinetic (PK), and toxicology study services to support the development and regulatory approval of potential therapies. If you are interested in our services, please feel free to contact us for more details and quotation information of related services.

References

  1. Chelban V, Aksnes H, Maroofian R, et al. Biallelic NAA60 variants with impaired n-terminal acetylation capacity cause autosomal recessive primary familial brain calcifications[J]. Nature communications, 2024, 15(1): 2269.
  2. Monfrini E, Arienti F, Rinchetti P, et al. Brain calcifications: genetic, molecular, and clinical aspects[J]. International journal of molecular sciences, 2023, 24(10): 8995.
For research use only. Not intended for any clinical use.

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