Dataset Information

Early clinical and biomarker responses after treatment in patients with non-segmental vitiligo.

ABSTRACT: This study was a prospective cohort study in patients with non-segmental vitiligo receiving SoCtreatment. Standard of care treatment involved a potent topical corticosteroid, such as Fluticasonepropionate (FP) cream, used alone or in combination with NB-UVB phototherapy treatment, based ondisease severity per the investigator’s evaluation. For this study, as per institutional guidelines, FP creamwas the first choice for SoC treatment; however, if FP cream was not available, then potent topicalcorticosteroids such as Mometasone furoate (i.e. Elocon, Mometason) or betametasone valerate (i.e.Betnelan, betamethason) were prescribed. Calcineurin inhibitors were used for the face according to theSoC instead of steroids. Study participation did not affect SoC treatment. The study was conducted atthe Netherlands Institute for Pigment Disorders (NIPD), Department of Dermatology, AmsterdamUniversity Medical Center (AMC), University of Amsterdam, The Netherlands

INSTRUMENT(S):

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Blood Plasma, Skin

DISEASE(S): Vitiligo

SUBMITTER: Wouter Ouwerkerk

LAB HEAD: Rosalie Luiten

PROVIDER: PAD000045 | Pride | 2026-05-19

REPOSITORIES: Pride

ACCESS DATA

Dataset's files

Source:

			Action	DRS
	Novartis.ATI013.27Aug2020.HybNormPlateScaleCalMedNorm.adat	Other
	PLASMA.1.3k.HybNorm.MedNorm.Cal.20151030.adat	Other
	Sampledata.xlsx	Xlsx
	checksum.txt	Txt

Items per page:

1 - 4 of 4

Publications

Immune and Biological Changes during Treatment in Patients with Nonsegmental Vitiligo and their Relation to Repigmentation.

Ouwerkerk Wouter W Narayan Vidhya S VS Chielie Saskia S van Uden Nathalie O P NOP Schneider Martin A MA Hillenbrand Rainer R Gaulis Swann S Kjellerup Rasmus B RB Loesche Christian C Hanser Malika M McNamara Elizabeth E Bekkenk Marcel W MW Wolkerstorfer Albert A Luiten Rosalie M RM

The Journal of investigative dermatology 20250821 3

The treatment of nonsegmental vitiligo remains challenging and poorly understood. The aim of this study was to evaluate protein differences in lesional and nonlesional skin and changes of cellular and proteomic markers early in treatment in lesional skin and blood in relation to clinical response. This prospective exploratory study was conducted in 30 patients with nonsegmental vitiligo, 11 starting with standard-of-care topical therapy and 19 starting in combination with narrow-band UVB phototh ...[more]

PMID: 40848929

Similar Datasets

Project description:Gold nanoparticles (GNPs) have been used in the development of novel therapies as a way of delivery of both stimulatory and tolerogenic peptide cargoes. Here we report that intradermal injection of GNPs loaded with the proinsulin peptide C19-A3, in patients with type 1 diabetes, results in recruitment and retention of immune cells in the skin. These include large numbers of clonally expanded T-cells sharing the same paired T-cell receptors (TCRs) with activated phenotypes, half of which, when the TCRs were re-expressed in a cell-based system, were confirmed to be specific for either GNP or proinsulin. All the identified gold-specific clones were CD8+, whilst proinsulin-specific clones were both CD8+ and CD4+. Proinsulin-specific CD8+ clones had a distinctive cytotoxic phenotype with overexpression of granulysin (GNLY) and KIR receptors. Clonally expanded antigen-specific T cells remained in situ for months to years, with a spectrum of tissue resident memory and effector memory phenotypes. As the T-cell response is divided between targeting the gold core and the antigenic cargo, this offers a route to improving resident memory T-cells formation in response to vaccines. In addition, our scRNAseq data indicate that focusing on clonally expanded skin infiltrating T-cells recruited to intradermally injected antigen is a highly efficient method to enrich and identify antigen-specific cells. This approach has the potential to be used to monitor the intradermal delivery of antigens and nanoparticles for immune modulation in humans the Enhanced Epidermal Antigen Specific Immunotherapy Trial -1 (EEASI) study was a two-centre, open-label, uncontrolled, single-group first-in-human Phase 1A safety study of C19-A3 GNP peptide in individuals with T1D (https://clinicaltrials.gov/ct2/show/NCT02837094). The investigational medicinal product (IMP) was C19-A3 GNP (Midacore™), which comprises Midacore™ GNPs (Midatech Pharma Plc, Cardiff, UK)(1, 20) of a size of less than 5 nm, covalently coupled to an 18-amino acid human peptide, the sequence of which is identical to the residues from position 19 in the C-peptide of proinsulin through to position 3 on the A-chain of the same molecule (GSLQPLALEGSLQKRGIV). The peptide is synthesised with a linker to facilitate binding to the GNPs: 3-mercaptopropionyl-SLQPLALEGSLQKRGIV 2 acetate salt (disulfide bond). The chemical composition of the IMP contained a ratio of 4 C19-A3 peptides: 11 glucose C2: 29 glutathione ligands as determined by 1H-NMR (proton nuclear magnetic resonance). A typical batch contained: [C19-A3 peptide] = 1.33 mg/ml; [gold] = 5.5 mg/ml; [glucose linker] = 0.6 mg/ml; [glutathione linker] = 1.79 mg/ml. As the drug substance was diluted 1:7 to 1:10, depending on the content of C19-A3 peptide per particle, and as 50 μl of the diluted solution was administered to the study participants, this corresponded to C19-A3 peptide: 10 μg; gold: 39 μg; glucose linker: 4.3 μg; glutathione: 12.7 μg. Participants diagnosed with T1D and confirmed to possess the HLA-DRB1∗0401 genotype, were given three doses of C19-A3 GNP at 4-weekly intervals (weeks 0, 4, and 8) in the deltoid region of alternate arms (2 doses in one arm and 1 dose in the other arm) via CE-marked 600 μm length MicronJet600™ hollow microneedles (NanoPass Technologies Ltd. Israel) attached to a standard Luer-lock syringe. The single-dose given in 50 μl volume was equivalent to 10 μg of C19-A3 peptide Skin suction blisters were raised: Briefly, suction cups were applied to the deltoid region of participants’ arms, at the site of previous injection. Skin suction blisters were performed by gradually applying negative pressure (up to 60 kPa) from a suction pump machine VP25 (Eschmann, Lancing, UK) through a suction blister cup with a 15-mm hole in the base (UHBristol NHS Foundation Trust Medical Engineering Department, Bristol, UK) for 2–4 hr until a unilocular blister had formed within the cup. The cup was left in place for a further 30-60 minutes to encourage migration of lymphocytes into the blister fluid. The cup was then removed, and the blister fluid aspirated using a needle and syringe. Blister fluid was immediately suspended in 10ml heparinised RPMI (Gibco)+ 5% foetal calf serum Cells were counted then washed once and resuspended in an appropriate volume for scRNAseq. Samples were used fresh on the day of the collection. Samples were processed using a 10xGenomics V1 human 5’GEX kit and libraries were constructed following standard 10xGenomics protocols. Samples were pooled and sequenced on Illumina NextSeq and MiSeq scRNAseq libraries were sequenced aiming for 20,000 reads per cell for GEX and 5,000 reads/cell for VDJ.