Activity
| Date | Panel | Item | Activity | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
23 actions
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.3 | FLG | Arina Puzriakova Phenotypes for gene: FLG were changed from Ichthyosis vulgaris, OMIM:146700 to Ichthyosis vulgaris, OMIM:146700; Dermatitis, atopic, susceptibility to, 2, OMIM:605803; ichthyosis vulgaris, MONDO:0024304 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.2 | FLG | Arina Puzriakova Publications for gene: FLG were set to 16444271; 16815158; 17030239; 17291859 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG | Arina Puzriakova Tag Q3_25_MOI tag was added to gene: FLG. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG |
Ida Ertmanska changed review comment from: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma.; to: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG |
Ida Ertmanska changed review comment from: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma.; to: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG |
Ida Ertmanska changed review comment from: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma.; to: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG |
Ida Ertmanska changed review comment from: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma.; to: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). Heterozygous individuals also have an increased susceptibility to atopic dermatitis (PMID: 16550169 Palmer et al., 2006). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG | Ida Ertmanska edited their review of gene: FLG: Added comment: Comment on list classification: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma.; Changed publications to: 16444271, 16550169, 24940654, 22409988, 33807935, 36716921, 36751330 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG |
Ida Ertmanska changed review comment from: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma.; to: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and/or symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG |
Ida Ertmanska commented on gene: FLG: There are at least 42 unrelated patients with variants in FLG with ichthyosis vulgaris and symmetrical acral keratoderma, which fits into the scope of this panel. Ichthyosis vulgaris is characterized clinically by xerosis, hyperkeratosis, excess scaling, keratosis pilaris, palmar and plantar hyperlinearity, and a strong association with atopic disorders. The penetrance of ichthyosis vulgaris is estimated at 83%–96%, with variable severity of symptoms; mild phenotype may escape diagnosis. Majority of affected individuals will experience symptoms before age 5. Importantly, the frequency and type of variants associated with disease varies between ancestry groups (PMID: 36751330 Jaffar et al., 2022). PMID:16444271 Smith et al., 2006: 7 unrelated families and 8 sporadic cases of Caucasian ancestry with Ichthyosis vulgaris who were heterozygous or homozygous for a stop codon c.1501C>T (p.Arg501Ter), or compound heterozygous for this variant and a frameshift variant c.2282_2285del (p.Ser761fs). Homozygous/compound heterozygous cases had a more severe phenotype. c.1501C>T p.(Arg501Ter) - European population frequency in gnomAD v4.1.0 = 0.02138, including 296 homozygotes. c.2282_2285del p.(Ser761fs) - European population freq in gnomad V.4.1.0 = 0.02330, including 386 homozygotes. PMID: 33807935 Fozia et al., 2021: Family D, Pakistani origin, consanguineous; phenotype: congenital erythroderma, ichthyosis vulgaris; method: WES; 3 affected members homozygous FLG: c.6109C>T; p. (Arg2037Ter) - gnomAD South Asian pop freq = 0.001164, 3 homozygotes. Symmetrical Acral Keratoderma (SAK) is a rare skin condition, more common in young Asian men, characterized by symmetrical, brownish-black, thickened skin patches (plaques) on the hands, feet, and wrists, with occasional involvement of elbows and knees (sparing the palms and soles). PMID:36716921 Liu et al., 2023: 33 of the 36 patients with SAK carried pathogenic variants in the FLG. Method: WES +Sanger validation. 20/36 of the individuals had ichthyosis vulgaris in addition to Symmetrical Acral Keratoderma. Functional studies: Knockdown of FLG in three-dimensional reconstructed human epidermis (RHE) showed hypogranulosis, a disturbed corneocyte intracellular matrix, impaired keratinocyte differentiation (PMID: 24940654 Pendaries et al., 2014). Newborn Flg(-/-) knockout mice exhibit dry scaly skin. The keratin patterns were lost, and the stratum corneum was fragile, leading to altered skin barrier integrity (PMID: 22409988 Kawasaki et al., 2012). Based on the available evidence, this gene should be rated Green for Ichthyosis and erythrokeratoderma. |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v4.1 | FLG | Ida Ertmanska reviewed gene: FLG: Rating: GREEN; Mode of pathogenicity: None; Publications: 16444271, 16550169; Phenotypes: Ichthyosis vulgaris, OMIM:146700, Dermatitis, atopic, susceptibility to, 2, OMIM: 605803, ichthyosis vulgaris, MONDO:0024304; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v1.25 | FLG2 | Ivone Leong Phenotypes for gene: FLG2 were changed from to Peeling skin syndrome 6, OMIM: 618084 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v1.24 | FLG | Ivone Leong Phenotypes for gene: FLG were changed from to Ichthyosis vulgaris, OMIM:146700 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.18 | FLG2 | Catherine Snow Classified gene: FLG2 as Green List (high evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.18 | FLG2 | Catherine Snow Gene: flg2 has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.12 | FLG | Catherine Snow Publications for gene: FLG were set to | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.11 | FLG | Catherine Snow Classified gene: FLG as Green List (high evidence) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.11 | FLG | Catherine Snow Added comment: Comment on list classification: Sufficient evidence and phenotype to be relevant as Green in the panel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.11 | FLG | Catherine Snow Gene: flg has been classified as Green List (High Evidence). | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.10 | FLG2 | Catherine Snow reviewed gene: FLG2: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.10 | FLG | Catherine Snow reviewed gene: FLG: Rating: AMBER; Mode of pathogenicity: ; Publications: ; Phenotypes: ; Mode of inheritance: | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.9 | FLG2 |
Catherine Snow gene: FLG2 was added gene: FLG2 was added to Ichthyosis and erythrokeratoderma. Sources: Expert Review Amber Mode of inheritance for gene: FLG2 was set to BIALLELIC, autosomal or pseudoautosomal |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ichthyosis and erythrokeratoderma v0.9 | FLG |
Catherine Snow gene: FLG was added gene: FLG was added to Ichthyosis and erythrokeratoderma. Sources: Expert Review Amber Mode of inheritance for gene: FLG was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||