Assessment & Research

Brief Report: SETD2 Mutation in a Child with Autism, Intellectual Disabilities and Epilepsy.

Lumish et al. (2015) · Journal of autism and developmental disorders 2015
★ The Verdict

Consider SETD2 testing in genetic workups for teens presenting with ASD, ID, epilepsy, macrocephaly and short stature.

✓ Read this if BCBAs in medical clinics or schools who serve teens with dual autism and epilepsy.
✗ Skip if Practitioners focused only on behavioral intervention without access to medical referrals.

01Research in Context

01

What this study did

Doctors sequenced the genes of one teenage girl. She had autism, intellectual disability, epilepsy, a large head, and short stature.

The test found a brand-new mutation in the SETD2 gene. No one in her family carried it. The team wrote up her story as a case report.

02

What they found

The new SETD2 mutation may explain all five problems in one shot. The gene helps control how other genes turn on and off.

This is the first time SETD2 has been linked to autism plus epilepsy, so it adds a fresh line to genetic checklists.

03

How this fits with other research

Jokiranta et al. (2014) already showed that autism plus ID raises epilepsy risk across thousands of kids. The single case here matches that pattern.

Annunziata et al. (2023) used array-CGH and found harmful chromosome chunks in 12.8 % of “complex” autism cases. Both papers push for genetic testing, but Nickerson et al. (2015) shows a single-letter change, not a big deletion, can also drive the trio of ASD, ID, and epilepsy.

Al-Jawahiri et al. (2023) describe 21 people with SOX11 syndrome who have mild delays yet strong autism traits. Together the studies tell us many different genes can paint a similar picture; the key is to test early so families know the cause.

04

Why it matters

If you work with teens who have autism, ID, epilepsy, large heads, and slow growth, ask the medical team about SETD2 testing. A clear gene finding can end the diagnostic hunt, guide seizure care, and give families a reason for the mix of symptoms. Keep a short list of emerging genes like SETD2, SMARCA4, and SOX11 in your referral notes so you do not miss the next case.

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Add SETD2 to your genetic red-flag list and flag any teen client with ASD+ID+epilepsy+large head for physician follow-up.

02At a glance

Intervention
not applicable
Design
case study
Sample size
1
Population
autism spectrum disorder, intellectual disability
Finding
not reported

03Original abstract

Whole exome sequencing (WES) has been utilized with increasing frequency to identify mutations underlying rare diseases. Autism spectrum disorders (ASD) and intellectual disability (ID) are genetically heterogeneous, and novel genes for these disorders are rapidly being identified, making these disorders ideal candidates for WES. Here we report a 17-year-old girl with ASD, developmental delay, ID, seizures, Chiari I malformation, macrocephaly, and short stature. She was found by WES to have a de novo c.2028delT (P677LfsX19) mutation in the SET domain-containing protein 2 (SETD2) gene, predicted to be gene-damaging. This case offers evidence for the potential the role of SETD2 in ASD and ID and provides further detail about the phenotypic manifestations of mutations in SETD2.

Journal of autism and developmental disorders, 2015 · doi:10.1007/s10803-015-2484-8