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Updated: Jun 20, 2025

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells NPCs
Published on: March 2, 2018
INTS11-related neurodevelopmental disorder: a case report and literature review
Lihua Jiang1, Yilong Wang1, Weiqin Zhang1
1Department of Neurology, The Children's Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, 310052, China.
Background:
INTS11 is a critical catalytic component of the Integrator complex that regulates RNA polymerase II termination and modulates gene expression. Until recently, INTS11 mutations were associated with human neurodevelopmental disorders, characterized by global developmental and language delays, generalized hypotonia, and progressive brain atrophy.
Case:
We report the case of a 2-year-old Chinese girl who presented with global developmental delay, generalized hypotonia, refractory epilepsy, craniofacial dysmorphism, and progressive brain atrophy. Novel variants were identified in exon 2 of INTS11 gene c.588_589del (p. Trp197AspfsTer2) and c.457_459del (p. Glu153del).
Conclusion:
We identified a compound heterozygous mutation in INTS11, a clinical feature consistent with two previous reports of the variants in human INTS11, but her recurrent seizures were more pronounced and refractory to most antiepileptic drugs and ketogenic diets.
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