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Relevance to Autism

siRNA-mediated downregulation of Fgr2 in mice resulted in abnormal neuronal migration and spine density during cortical development, as well as reduced ultrasonic vocalizations and impaired social interactions; conversely, overexpression of FGFR2 was shown to rescue neuronal migration and spine defects and ASD-related core behaviors in Negr1-downregulated mice (Szczurkowska et al., 2018).

Molecular Function

Tyrosine-protein kinase that acts as cell-surface receptor for fibroblast growth factors and plays an essential role in the regulation of cell proliferation, differentiation, migration and apoptosis, and in the regulation of embryonic development.

External Links

        

References

Type
Title
Type of Disorder
Associated Disorders
Author, Year
Primary
NEGR1 and FGFR2 cooperatively regulate cortical development and core behaviours related to autism disorders in mice.
Support
A single center experience with publicly funded clinical exome sequencing for neurodevelopmental disorders or multiple congenital anomalies
DD, ID
Support
Fibroblast Growth Factor Receptor 2 (FGFR2), a New Gene Involved in the Genesis of Autism Spectrum Disorder
ASD, ADHD, DD
Support
Genome-wide rare variant score associates with morphological subtypes of autism spectrum disorder
ASD
ADD
Support
Integrating de novo and inherited variants in 42
ASD
Support
Impaired Neurodevelopmental Genes in Slovenian Autistic Children Elucidate the Comorbidity of Autism With Other Developmental Disorders
ASD
DD
Support
Genomic insights from a deeply phenotyped highly consanguineous neurodevelopmental disorders cohort
ASD, epilepsy/seizures
Support
Prevalence and phenotypic impact of rare potentially damaging variants in autism spectrum disorder
ASD
Support
Deciphering the etiology of undiagnosed ocular anomalies along with systemic alterations in pediatric patients through whole exome sequencing
Ocular anomalies
DD
Variant ID
Variant Type
Allele Change
Residue Change
Inheritance Pattern
Inheritance Association
Family Type
Author, Year
 GEN1030R001 
 missense_variant 
 c.1052C>G 
 p.Ser351Cys 
 De novo 
  
 Simplex 
 GEN1030R002 
 missense_variant 
 c.832T>C 
 p.Cys278Arg 
 Unknown 
  
  
 GEN1030R003 
 missense_variant 
 c.1069G>T 
 p.Val357Phe 
 Familial 
 Paternal 
 Multiplex 
 GEN1030R004 
 missense_variant 
 c.2035A>G 
 p.Arg679Gly 
 De novo 
  
  
 GEN1030R005 
 synonymous_variant 
 c.1993C>A 
 p.Arg665%3D 
 De novo 
  
  
 GEN1030R006 
 missense_variant 
 c.1040C>G 
 p.Ser347Cys 
 De novo 
  
  
 GEN1030R007 
 insertion 
  
  
 Familial 
 Paternal 
  
 GEN1030R008 
 insertion 
  
  
 Familial 
 Maternal 
  
 GEN1030R009 
 missense_variant 
 c.412G>A 
 p.Asp138Asn 
 De novo 
  
  
 GEN1030R010 
 missense_variant 
 c.629G>A 
 p.Arg210Gln 
 Familial 
 Paternal 
 Extended multiplex 
 GEN1030R011 
 missense_variant 
 c.247A>G 
 p.Asn83Asp 
 Unknown 
  
  
Chromosome
CNV Locus
CNV Type
# of studies
Animal Model
10
Duplication
 1
 
10
Duplication
 1
 
10
Duplication
 2
 
10
Duplication
 1
 
10
Duplication
 2
 
10
Duplication
 1
 
10
Duplication
 1
 
10
Duplication
 1
 
10
Deletion
 5
 
10
Deletion
 3
 
10
Deletion-Duplication
 10
 
10
Deletion
 6
 

Model Summary

In utero electroporation of Fgfr2 siRNA at E15.5 impairs the radial migration and spine density of pyramidal neurons in the somatosensory cortex, reduces usv calls, decreases pain perception and social sniffing and increases self grooming (PMID 30059965).

References

Type
Title
Author, Year
Primary
NEGR1 and FGFR2 cooperatively regulate cortical development and core behaviours related to autism disorders in mice.
Model Type: Genetic
Model Genotype: NA
Mutation: E15.2 timed-pregnant CD1 mice were injected with Fgfr2 siRNA in Fast Green dye through the uterine wall into the lateral ventricle of each embryo and electroporated into the subventricular cortex. Co-electroporation of td-Tomato or EGFP was used to visualize transfected neurons and normalize total DNA transfected.
Allele Type: Knockdown
Strain of Origin: CD1
Genetic Background: CD1
ES Cell Line:
Mutant ES Cell Line:
Model Source: Charles River, SRL
Category
Entity
Quantity
Experimental Paradigm
Age at Testing
Neuronal specification1
Decreased
 NA
 P7
Neuronal migration1
Decreased
 Immunohistochemistry
 E18, p7, 1.2 months
Dendritic architecture: dendritic tree complexity1
Decreased
 Sholl analysis
 P7
Dendritic architecture: dendritic length1
 No change
 Sholl analysis
 P7
 Not Reported: Circadian sleep/wake cycle, Communications, Developmental profile, Emotion, Immune response, Learning & memory, Maternal behavior, Molecular profile, Motor phenotype, Neurophysiology, Physiological parameters, Repetitive behavior, Seizure, Sensory, Social behavior

 

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