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Growth failure in early childhood v3.39 MTX2 Arina Puzriakova Added comment: Comment on phenotypes: Previous phenotypes (overwritten): Mandibuloacral dysplasia;lipodystrophy;arterial calcification;growth retardation
Growth failure in early childhood v3.39 MTX2 Arina Puzriakova Phenotypes for gene: MTX2 were changed from Mandibuloacral dysplasia; lipodystrophy; arterial calcification; growth retardation to Mandibuloacral dysplasia progeroid syndrome, OMIM:619127
Growth failure in early childhood v1.100 MTX2 Ivone Leong Tag for-review was removed from gene: MTX2.
Growth failure in early childhood v1.100 MTX2 Ivone Leong commented on gene: MTX2: The rating of this gene has been updated following NHS Genomic Medicine Service approval.
Growth failure in early childhood v1.99 MTX2 Ivone Leong Source Expert Review Green was added to MTX2.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Growth failure in early childhood v1.16 MTX2 Ivone Leong Classified gene: MTX2 as Amber List (moderate evidence)
Growth failure in early childhood v1.16 MTX2 Ivone Leong Gene: mtx2 has been classified as Amber List (Moderate Evidence).
Growth failure in early childhood v1.15 MTX2 Ivone Leong gene: MTX2 was added
gene: MTX2 was added to Growth failure in early childhood. Sources: Literature,Expert Review
for-review tags were added to gene: MTX2.
Mode of inheritance for gene: MTX2 was set to BIALLELIC, autosomal or pseudoautosomal
Publications for gene: MTX2 were set to 32917887
Phenotypes for gene: MTX2 were set to Mandibuloacral dysplasia; lipodystrophy; arterial calcification; growth retardation
Review for gene: MTX2 was set to GREEN
Added comment: The Genomics England Clinical Team suggested that this gene should be added to this panel as growth retardation is a phenotype. Therefore, this gene has been given an Amber rating and will be promoted to Green at the next review.

Review from Zornitza Stark on the Lipodystrophy - childhood onset:
"Seven individuals from 5 unrelated families reported with severe progeroid form of MAD with growth retardation, small viscerocranium with mandibular underdevelopment, distal acro-osteolyses, lipodystrophy, altered skin pigmentation, renal focal glomerulosclerosis, and extremely severe hypertension in most cases, eventually associated with disseminated arterial calcification. Loss of MTX2 in patients' primary fibroblasts led to loss of Metaxin-1 (MTX1) and mitochondrial dysfunction, including network fragmentation and oxidative phosphorylation impairment. Furthermore, patients' fibroblasts were resistant to induced apoptosis, leading to increased cell senescence and mitophagy and reduced proliferation. Sources: Literature
Zornitza Stark (Australian Genomics), 5 Oct 2020"
Sources: Literature, Expert Review