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Adult onset neurodegenerative disorder v7.19 CST3 Achchuthan Shanmugasundram Classified gene: CST3 as Amber List (moderate evidence)
Adult onset neurodegenerative disorder v7.19 CST3 Achchuthan Shanmugasundram Added comment: Comment on list classification: There are >3 unrelated cases with Cerebral amyloid angiopathy (MIM #105150), however they were all reported with the same founder variant.

However, there are 18 patients from ten unrelated families with adult-onset leukodystrophy phenotype (not yet reported in OMIM) and with five different monoallelic variants, of which eight patients from five families were reported with cognitive decline and dementia on or before the age of 55.

Hence, there is sufficient evidence available for the promotion of this gene to green rating on the next GMS update.
Adult onset neurodegenerative disorder v7.19 CST3 Achchuthan Shanmugasundram Gene: cst3 has been classified as Amber List (Moderate Evidence).
Adult onset neurodegenerative disorder v7.18 CST3 Achchuthan Shanmugasundram Phenotypes for gene: CST3 were changed from Cerebral amyloid angiopathy, OMIM:105150 to Cerebral amyloid angiopathy, OMIM:105150; leukodystrophy, MONDO:0019046
Adult onset neurodegenerative disorder v7.17 CST3 Achchuthan Shanmugasundram Publications for gene: CST3 were set to
Adult onset neurodegenerative disorder v7.16 CST3 Achchuthan Shanmugasundram Mode of inheritance for gene: CST3 was changed from MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Adult onset neurodegenerative disorder v7.15 CST3 Achchuthan Shanmugasundram Tag Q2_25_ promote_green tag was added to gene: CST3.
Adult onset neurodegenerative disorder v7.15 CST3 Achchuthan Shanmugasundram edited their review of gene: CST3: Added comment: PMID:38489591 reported 16 patients from eight families with a novel adult-onset leukodystrophy disorder and with one of four different stop-gain or frameshift monoallelic variants in the CST3 gene. The reported variants are c.360del, c.357+1del, c.340C>T and c.376C>T, and none of these variants are found in general population (gnomAD). Clinical and radiological features of these patients differ markedly from the previously described Icelandic cerebral amyloid angiopathy found in patients carrying p.Leu68Asn substitution in CST3. The clinical phenotype consists of recurrent episodes of hemiplegic migraine associated with transient unilateral focal deficits and slowly progressing motor symptoms and cognitive decline in mid to older adult ages. Cognitive decline and dementia were present in 11 patients from seven families, of which seven patients from four families were aged below 55.

PMID:38729262 reported two unrelated Chinese individuals with adult-onset leukodystrophy and with monoallelic CST3 variants. One patient had the previously reported c.340C>T variant, while the other had novel c.357+1G>T variant. Memory deterioration and cognitive decline has been noted in the 48-year-old female patient with the novel variant.

This gene has only been reported with Cerebral amyloid angiopathy (MIM #105150) and not yet with the adult-onset leukodystrophy phenotype in OMIM.; Changed rating: GREEN; Changed publications to: 38489591, 38729262; Changed phenotypes to: Cerebral amyloid angiopathy, OMIM:105150, leukodystrophy, MONDO:0019046; Changed mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Adult onset neurodegenerative disorder v3.49 CST3 Arina Puzriakova reviewed gene: CST3: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance:
Adult onset neurodegenerative disorder v3.48 CST3 Arina Puzriakova Source NHS GMS was added to CST3.
Adult onset neurodegenerative disorder v3.47 CST3 Achchuthan Shanmugasundram changed review comment from: There are >3 unrelated cases with relevant phenotype (cerebral amyloid angiopathy) and age of onset is third or fourth decade of life. However, all these cases were identified with the same heterozygous variant in the CST3 gene (p.L68Q) and was from the same Icelandic population. This gene should be rated AMBER in the absence of functional studies on this specific variant, de novo cases with this variant from other populations or existence of other variants causing the same phenotype.; to: There are >3 unrelated cases with relevant phenotype (cerebral amyloid angiopathy) and age of onset is third or fourth decade of life. However, all these cases were identified with the same heterozygous variant in the CST3 gene (p.L68Q) and was from the same Icelandic population. There should be functional studies on this specific variant, de novo cases with this variant from other populations or existence of other variants causing the same phenotype for it to be rated green. Hence, this gene is rated AMBER.
Adult onset neurodegenerative disorder v3.47 CST3 Achchuthan Shanmugasundram Deleted their comment
Adult onset neurodegenerative disorder v3.47 CST3 Achchuthan Shanmugasundram edited their review of gene: CST3: Added comment: There are >3 unrelated cases with relevant phenotype (cerebral amyloid angiopathy) and age of onset is third or fourth decade of life. However, all these cases were identified with the same heterozygous variant in the CST3 gene (p.L68Q) and was from the same Icelandic population. This gene should be rated AMBER in the absence of functional studies on this specific variant, de novo cases with this variant from other populations or existence of other variants causing the same phenotype.; Changed rating: AMBER
Adult onset neurodegenerative disorder v3.47 CST3 Achchuthan Shanmugasundram Tag Q1_23_promote_green was removed from gene: CST3.
Adult onset neurodegenerative disorder v3.36 CST3 Achchuthan Shanmugasundram Tag Q1_23_promote_green tag was added to gene: CST3.
Adult onset neurodegenerative disorder v3.25 CST3 Achchuthan Shanmugasundram Mode of inheritance for gene: CST3 was changed from to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Adult onset neurodegenerative disorder v3.24 CST3 Achchuthan Shanmugasundram Classified gene: CST3 as Amber List (moderate evidence)
Adult onset neurodegenerative disorder v3.24 CST3 Achchuthan Shanmugasundram Gene: cst3 has been classified as Amber List (Moderate Evidence).
Adult onset neurodegenerative disorder v3.23 CST3 Achchuthan Shanmugasundram Classified gene: CST3 as Amber List (moderate evidence)
Adult onset neurodegenerative disorder v3.23 CST3 Achchuthan Shanmugasundram Gene: cst3 has been classified as Amber List (Moderate Evidence).
Adult onset neurodegenerative disorder v3.22 CST3 Achchuthan Shanmugasundram reviewed gene: CST3: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Cerebral amyloid angiopathy, OMIM:105150; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Adult onset neurodegenerative disorder v3.5 CST3 Arina Puzriakova Phenotypes for gene: CST3 were changed from to Cerebral amyloid angiopathy, OMIM:105150
Adult onset neurodegenerative disorder v3.4 CST3 Eleanor Williams reviewed gene: CST3: Rating: ; Mode of pathogenicity: ; Publications: ; Phenotypes: Cerebral amyloid angiopathy; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Adult onset neurodegenerative disorder v3.3 CST3 Eleanor Williams gene: CST3 was added
gene: CST3 was added to Neurodegenerative disorders - adult onset. Sources: Expert list
Mode of inheritance for gene: CST3 was set to