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| Paediatric disorders - additional genes v7.24 | SPRTN |
Ida Ertmanska Tag Q4_25_promote_green tag was added to gene: SPRTN. Tag Q4_25_NHS_review tag was added to gene: SPRTN. |
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| Paediatric disorders - additional genes v7.24 | SPRTN | Ida Ertmanska changed review comment from: Comment on list classification: There are 3 individuals from 2 unrelated families reported in literature with biallelic LoF variants in SPRTN and Ruijs-Aalfs syndrome. Individuals presented with early onset hepatocellular carcinoma, genomic instability, and progeroid features. Sprtn-deficiency in mice recapitulated the human phenotype, except for carcinoma susceptibility (PMID: 25501849). Based on the available evidence, this gene should be promoted to Green on Paediatric disorders - additional genes at the next GMS update; to: Comment on list classification: There are 3 individuals from 2 unrelated families reported in literature with biallelic LoF variants in SPRTN and Ruijs-Aalfs syndrome. Individuals presented with early onset hepatocellular carcinoma, genomic instability, and progeroid features (PMID: 25261934). Sprtn-deficiency in mice recapitulated the human phenotype, except for carcinoma susceptibility (PMID: 25501849). Based on the available evidence, this gene should be promoted to Green on Paediatric disorders - additional genes at the next GMS update | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.24 | SPRTN |
Ida Ertmanska changed review comment from: PMID: 25261934 Lessel et al., 2014 Found biallelic germline mutations in SPRTN in three patients from two unrelated families, affected by a new segmental progeroid syndrome characterized by genomic instability and susceptibility toward early onset hepatocellular carcinoma. Seq method: linkage analysis + WES. Family A: NM_032018.7:c.723del, p.Lys241Asnfs*9 homozygous Family A originally described in PMID: 12503110 Ruijs et al., 2003 - Report of a Moroccan boy from a consanguineous family with chromosomal breakage syndrome, who died at 17yo due to hepatocellular carcinoma. Presented with short stature, bilateral cataracts, premature hair graying. Family B: NM_032018.7:c.350A>G, p.Tyr117Cys & c.717_718+2delAGGT compound heterozygous Family B = nonconsanguineous Australian family of European ancestry. 2 affected male sibs B-II:1 and B-II:4 presented with low body weight, micrognathia, triangular face, muscular atrophy, lipodystrophy, bilateral simian creases, delayed bone age and mild joint restrictions. Both individuals developed early onset HCC at age 16 and 14. FUNCTIONAL EVIDENCE: PMID: 25501849: Maskey et al., 2014: Spartan insufficiency in mice causes chromosomal instability, cellular senescence and early onset of age-related phenotypes. Complete Spartan knockout causes early embryonic lethality; hypomorphic mice are viable, but growth retarded and develop cataracts, lordokyphosis and cachexia at a young age. Mouse model recapitulated human phenotype, except for the carcinoma susceptibility (no tumours detected in 1 year old Spartan-deficient mice). SPRTN is associated with AR Ruijs-Aalfs syndrome, OMIM:616200 (OMIM accessed 13th Nov 2025).; to: PMID: 25261934 Lessel et al., 2014 Reported biallelic germline mutations in SPRTN in three patients from two unrelated families, affected by a new segmental progeroid syndrome characterized by genomic instability and susceptibility toward early onset hepatocellular carcinoma. Seq method: linkage analysis + WES. Family A: NM_032018.7:c.723del, p.Lys241Asnfs*9 homozygous Family A originally described in PMID: 12503110 Ruijs et al., 2003 - Report of a Moroccan boy from a consanguineous family with chromosomal breakage syndrome, who died at 17yo due to hepatocellular carcinoma. Presented with short stature, bilateral cataracts, premature hair graying. Family B: NM_032018.7:c.350A>G, p.Tyr117Cys & c.717_718+2delAGGT compound heterozygous Family B = nonconsanguineous Australian family of European ancestry. 2 affected male sibs B-II:1 and B-II:4 presented with low body weight, micrognathia, triangular face, muscular atrophy, lipodystrophy, bilateral simian creases, delayed bone age and mild joint restrictions. Both individuals developed early onset HCC at age 16 and 14. FUNCTIONAL EVIDENCE: PMID: 25501849: Maskey et al., 2014: Spartan insufficiency in mice causes chromosomal instability, cellular senescence and early onset of age-related phenotypes. Complete Spartan knockout causes early embryonic lethality; hypomorphic mice are viable, but growth retarded and develop cataracts, lordokyphosis and cachexia at a young age. Mouse model recapitulated human phenotype, except for the carcinoma susceptibility (no tumours detected in 1 year old Spartan-deficient mice). SPRTN is associated with AR Ruijs-Aalfs syndrome, OMIM:616200 (OMIM accessed 13th Nov 2025). |
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| Paediatric disorders - additional genes v7.24 | SPRTN | Ida Ertmanska edited their review of gene: SPRTN: Changed phenotypes to: Ruijs-Aalfs syndrome, OMIM:616200, progeroid features-hepatocellular carcinoma predisposition syndrome, MONDO:0014527 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.24 | SPRTN | Ida Ertmanska Phenotypes for gene: SPRTN were changed from Ruijs-Aalfs syndrome, MIM# 616200 to Ruijs-Aalfs syndrome, OMIM:616200; progeroid features-hepatocellular carcinoma predisposition syndrome, MONDO:0014527 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.23 | SPRTN | Ida Ertmanska Publications for gene: SPRTN were set to 12503110; 25261934 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.22 | SPRTN | Ida Ertmanska Classified gene: SPRTN as Amber List (moderate evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.22 | SPRTN | Ida Ertmanska Added comment: Comment on list classification: There are 3 individuals from 2 unrelated families reported in literature with biallelic LoF variants in SPRTN and Ruijs-Aalfs syndrome. Individuals presented with early onset hepatocellular carcinoma, genomic instability, and progeroid features. Sprtn-deficiency in mice recapitulated the human phenotype, except for carcinoma susceptibility (PMID: 25501849). Based on the available evidence, this gene should be promoted to Green on Paediatric disorders - additional genes at the next GMS update | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.22 | SPRTN | Ida Ertmanska Gene: sprtn has been classified as Amber List (Moderate Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.21 | SPRTN | Ida Ertmanska reviewed gene: SPRTN: Rating: GREEN; Mode of pathogenicity: None; Publications: 12503110, 25261934, 25501849; Phenotypes: Ruijs-Aalfs syndrome, OMIM:616200; Mode of inheritance: BIALLELIC, autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Paediatric disorders - additional genes v7.21 | SPRTN |
Ronnie Wright gene: SPRTN was added gene: SPRTN was added to Paediatric disorders - additional genes. Sources: Literature,NHS GMS Mode of inheritance for gene: SPRTN was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: SPRTN were set to 12503110; 25261934 Phenotypes for gene: SPRTN were set to Ruijs-Aalfs syndrome, MIM# 616200 Penetrance for gene: SPRTN were set to Complete Review for gene: SPRTN was set to GREEN Added comment: 2 families in literature with progeroid phenotype and susceptibility to hepatocellular carcinoma. DNA repair defects (chromosome breakage observed) in affected patients - PMID:25261934 1 family in NWGLH - IUGR & IGF abnormalities referral. Subsequently reported with hepatocellular carcinoma and described as progeroid - remarkably consistent phenotype with families in literature. Chromosome breakage studies being arranged. (100KGP - https://cva.genomicsengland.nhs.uk/case/25972-1 - homozygous final exon nonsense/truncating variant) 3rd family = sufficient for green rating? Sources: Literature, NHS GMS |
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