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A new test for autism spectrum disorder: Metabolic data from different cell types
Sujata Srikanth1, Lauren Cascio1, Rini Pauly1
1Greenwood Genetic Center, 101 Gregor Mendel Circle, Greenwood, SC 29646, USA.
Data in Brief
|December 8, 2021
Summary
Researchers found distinct differences in tryptophan metabolism between individuals with autism spectrum disorder (ASD) and controls using specialized cell assays. This study highlights potential metabolic variations linked to ASD.
Area of Science:
- Biochemistry
- Neuroscience
- Genetics
Background:
- Autism spectrum disorder (ASD) is a complex neurodevelopmental condition with poorly understood underlying biological mechanisms.
- Metabolic pathways, including amino acid utilization, are increasingly being investigated for their role in ASD pathogenesis.
- Tryptophan metabolism is crucial for synthesizing neurotransmitters like serotonin and kynurenine, which are implicated in neurodevelopment.
Purpose of the Study:
- To investigate differential utilization of the amino acid tryptophan in lymphoblastoid cell lines (LCLs) from individuals with ASD compared to controls.
- To optimize experimental protocols for reliable assessment of metabolic differences using Phenotype Mammalian Microarray (PM-M) technology.
- To identify specific metabolic signatures associated with ASD.
Main Methods:
- Utilized custom-made Phenotype Mammalian Microarray (PM-M) plates to analyze tryptophan metabolism.
- Employed lymphoblastoid cell lines (LCLs) derived from individuals with ASD and age-matched controls.
- Optimized experimental parameters (sample size, incubation time, cell concentration) and controlled for false discoveries to minimize background noise.
- Measured nicotinamide adenine dinucleotide (NADH) production in response to various tryptophan-containing compounds.
Main Results:
- The PM-M assay successfully generated data indicating clear differences in tryptophan utilization between ASD and control LCLs.
- Optimized protocols ensured data reliability by minimizing background noise and controlling for statistical variations.
- Specific patterns of NADH production revealed distinct metabolic profiles related to tryptophan metabolism in ASD.
Conclusions:
- This study demonstrates significant differences in tryptophan metabolism in LCLs from individuals with ASD.
- The findings suggest that altered tryptophan utilization may be a contributing factor to the pathophysiology of ASD.
- The optimized PM-M assay provides a robust platform for further investigation of metabolic dysregulation in neurodevelopmental disorders.
