ASD · Autism spectrum disorder

Autism spectrum disorder

ASD combines social-communication deficits, repetitive behavior and learning or memory changes. Synaptic and epigenetic mechanisms require complementary model backgrounds.

Shank3-KO models synaptic dysfunction and social behavior. MECP2-TG covers an epigenetic disease mechanism. Social and repetitive phenotypes can be compared across developmental windows.

ASD studies can quantify social preference, social novelty and 12 classes of spontaneous behavior across ages and sexes.

  • 3ASD models
  • 12Fine-behavior domains
  • ♀ & ♂Sex-specific validation
  • 2Mechanism pathways
Discuss a model study

Model strategy

Social preference, social novelty and repetitive behavior.

Match the model and study conditions to candidate mechanism, intervention stage and target tissue.

Shank3-KO

Social deficit and synaptic function

MECP2-TG

MECP2 overexpression phenotype

Fmr1 mutant

Fragile-X research direction

Evaluation endpoints

  • 01Three-chamber social and social novelty
  • 02Repetitive and fine-motor behavior
  • 03Novel-object recognition and cognitive flexibility
  • 04Sex differences with molecular and tissue validation

Representative data

Three-chamber social test · Sociability index & social novelty index deficits. Three-chamber social test in Shank3-KO mice: heat maps of social exploration trajectories for the WT, HZ and HO groups at 4 and 6 weeks of age in Round 2 and Round 3, plus statistics of interaction time (Interaction time, s) under the Empty/Stranger and Familiar/Novel conditions, reflecting deficits in the sociability index and social novelty index.
01

Three-chamber social test · Sociability index & social novelty index deficits

Three-chamber social test in Shank3-KO mice: heat maps of social exploration trajectories for the WT, HZ and HO groups at 4 and 6 weeks of age in Round 2 and Round 3, plus statistics of interaction time (Interaction time, s) under the Empty/Stranger and Familiar/Novel conditions, reflecting deficits in the sociability index and social novelty index.

Novel object recognition · Cognitive flexibility deficits. Novel object recognition test in Shank3-KO mice: heat maps of exploration trajectories for the WT, HZ and HO groups at 4 and 6 weeks of age in Round 2 and Round 3, and exploration time (Time to Explore, s) under the Familiar/Familiar' and Familiar/Novel conditions, reflecting cognitive flexibility deficits.
02

Novel object recognition · Cognitive flexibility deficits

Novel object recognition test in Shank3-KO mice: heat maps of exploration trajectories for the WT, HZ and HO groups at 4 and 6 weeks of age in Round 2 and Round 3, and exploration time (Time to Explore, s) under the Familiar/Familiar' and Familiar/Novel conditions, reflecting cognitive flexibility deficits.

Light-dark box test · Anxiety-like behavioral phenotype. Light-dark box test in Shank3-KO mice: activity heat maps of the light and dark compartments for the WT, HZ and HO groups at 4 and 6 weeks of age, plus statistics of the percentage of time spent in the light compartment and the distance travelled within the light compartment (cm), reflecting an anxiety-like behavioral phenotype.
03

Light-dark box test · Anxiety-like behavioral phenotype

Light-dark box test in Shank3-KO mice: activity heat maps of the light and dark compartments for the WT, HZ and HO groups at 4 and 6 weeks of age, plus statistics of the percentage of time spent in the light compartment and the distance travelled within the light compartment (cm), reflecting an anxiety-like behavioral phenotype.

Immunofluorescence / MECP2 RNA expression level. Immunofluorescence staining of brain tissue from MECP2-TG and MECP2-KO mice (DAPI, GFAP, DCX, Merge, with a WT control), and bar graphs of relative mMECP2 mRNA expression in the cortex (Cor) and hippocampus (Hip).
04

Immunofluorescence / MECP2 RNA expression level

Immunofluorescence staining of brain tissue from MECP2-TG and MECP2-KO mice (DAPI, GFAP, DCX, Merge, with a WT control), and bar graphs of relative mMECP2 mRNA expression in the cortex (Cor) and hippocampus (Hip).

Three-chamber social · Social novelty index deficits (6 weeks of age). Three-chamber social test in MECP2-TG mice at 6 weeks of age: statistics of interaction time and sociability index (Sociability index) for the WT, Control and Treatment groups under the Empty/Empty', Empty/Stranger and Familiar/Novel conditions.
05

Three-chamber social · Social novelty index deficits (6 weeks of age)

Three-chamber social test in MECP2-TG mice at 6 weeks of age: statistics of interaction time and sociability index (Sociability index) for the WT, Control and Treatment groups under the Empty/Empty', Empty/Stranger and Familiar/Novel conditions.

Fine behavior · Stereotyped repetitive behavior. Fine behavioral testing in MECP2-TG mice: bar graphs of Latency(s) for the WT, Control and Treatment groups (Locomotion and Immobility), annotated with the stereotyped repetitive behavioral phenotype of increased grooming, reduced locomotion time and increased immobility time.
06

Fine behavior · Stereotyped repetitive behavior

Fine behavioral testing in MECP2-TG mice: bar graphs of Latency(s) for the WT, Control and Treatment groups (Locomotion and Immobility), annotated with the stereotyped repetitive behavioral phenotype of increased grooming, reduced locomotion time and increased immobility time.

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