Information on PTORCH3

Basic details

Name: Pseudo-TORCH syndrome 3 | Acronym: PTORCH3
Alt. names: STAT2-LOF

Gene: STAT2 | MOI: Autosomal recessive | Mechanism of action: Loss of Function

No. of cases in DB: 0 | First reported in: 2019

Last updated on: 2023-02-28 16:41:18 by Andrés Caballero-Oteyza

OMIM: 618886

Orphanet: -

MONDO: -

DOID: -

ClinGen:

Description

Disorder of immune dysregulation and neuroinflammation apparent from early infancy. Affected individuals have developmental delay with acute episodes of fever and multisystemic organ involvement, including coagulopathy, elevated liver enzymes, and proteinuria, often associated with thrombotic microangiopathy. Brain imaging shows progressive intracranial calcifications, white matter abnormalities, and sometimes cerebral or cerebellar atrophy. Laboratory studies show abnormal elevation of interferon (IFN)-stimulated gene (ISG) transcripts consistent with a type I interferonopathy. The phenotype resembles the sequelae of intrauterine infection, but there is usually no evidence of an infectious agent. The disorder results from defects in negative regulation of the interferon immunologic pathway. Death in early childhood is common (summary by Duncan et al., 2019 and Gruber et al., 2020).[OMIM]

Management

Description of management option has not been reviewed yet.

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0 reported cases added to GenIA

SubjectID Sex Fam.ID AD AFM Validity Country Population Reference & Pub.code

AD: Age at genetic diagnosis; AFM: age at first manifestation; PMID: PubMed ID; GRID: GenIA reference ID (ref. not in PubMed).

Summary of clinical findings

[Considering only Definitive and Possible cases]

Rank Clinical term Present Absent Unreported
1 Cerebral calcificationarrow icon 3 (99.9%) 0 (0.0%) 0 (0.0%)
2 Abnormal cerebral white matter morphologyarrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
3 Apneaarrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
4 Cerebral hemorrhagearrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
5 Death in infancyarrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
6 Elevated circulating D-dimer concentrationarrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
7 Global developmental delayarrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
8 Premature birtharrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
9 proteinuriaarrow icon 2 (99.9%) 0 (0.0%) 0 (0.0%)
10 Acute kidney failurearrow icon 1 (50.0%) 0 (0.0%) 1 (50.0%)
11 Anemiaarrow icon 1 (99.9%) 0 (0.0%) 0 (0.0%)
12 Cardiomegalyarrow icon 1 (99.9%) 0 (0.0%) 0 (0.0%)
13 Cerebellar hypoplasiaarrow icon 1 (50.0%) 0 (0.0%) 1 (50.0%)
14 Congenital thrombocytopeniaarrow icon 1 (50.0%) 0 (0.0%) 1 (50.0%)
15 Leukocytosisarrow icon 1 (99.9%) 0 (0.0%) 0 (0.0%)
16 Lymphadenitisarrow icon 1 (99.9%) 0 (0.0%) 0 (0.0%)
17 Recurrent feversarrow icon 1 (50.0%) 0 (0.0%) 1 (50.0%)
18 Respiratory insufficiencyarrow icon 1 (99.9%) 0 (0.0%) 0 (0.0%)
19 Seizuresarrow icon 1 (50.0%) 0 (0.0%) 1 (50.0%)

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Summary of treatment outcomes

[Considering only Definitive and Possible cases]

Treatment ⓘ Responses & clinical indications

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