Comel-Netherton Syndrome Netherton Syndrome
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients with Netherton syndrome: - A genetic diagnosis of Netherton syndrome - Aged 18 years or above (adult) Patients with atopic dermatitis (AD): - Aged 18 years or above (adult) - Dermatologist diagnosed atopic dermatitis (AD) - AD lesion of at least 25x6mm Patients with psoriasis: - Aged 18 years or above (adult) - Dermatologist diagnosed psoriasis - Psoriasis lesion of at least 25x6mm
Exclusion criteria
Exclusion criteria: Exclusion criteria for Netherton syndrome (NS) patients, atopic dermatitis (AD) patients, and psoriasis patients: - Use of systemic treatment within a period of 5 half-lives (in the past week to ~3 months depending on the type of medication) - Bathing within 24-hours prior to the skin excision - Application of a topical medication (e.g. topical corticosteroids, topical calcineurin inhibitors, topical antibiotics) within 1 week before skin excision - Active (haematological) malignancy - Pregnancy or breastfeeding - No skin lesion of 25x6mm on either trunk or extremities (arms, legs)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main study parameters are the difference in gene expression profile of skin (lesional and non-lesional) of patients with NS (using scRNA-seq, and spatial transcriptomics) from skin of healthy controls and the difference in gene expression profile of NS-ILC and NS-SE. Furthermore, lesional NS skin will be compared with lesional AD skin and lesional psoriasis skin. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary endpoints of this study are: - Comparison of the gene expression profile (using scRNA-seq and spatial transcriptomics) in the lesional skin of NS patients with lesional skin in AD, and lesional skin in psoriasis - Comparison of the expression profile using scRNA-seq and spatial transcriptomics with bulk-RNA sequencing in and between all previously mentioned subgroups (lesional NS, non-lesional NS, ILC-NS, SE-NS, lesional AD, lesional psoriasis, and healthy controls). - Comparison of the gene expression profile with immunohistochemistry in the skin of NS, AD, psoriasis, and healthy control skin and to compare immunohistochemical differences amongst subgroups. - Correlation of the knowledge on the skin inflammation signature of NS with the systemic inflammation signature, analyzed by measured serum cytokine levels and phenotyping of peripheral blood immune cells (PBMCs) compared to psoriasis, AD, and healthy controls. | — |
Countries
Netherlands