Diagnosis of RSTS: Identification of the Acetylation Profiles as Epigenetic Markers for Assessing Causality of CREBBP and EP300 Variants.

RecruitingOBSERVATIONAL
Enrollment

154

Participants

Timeline

Start Date

October 8, 2019

Primary Completion Date

October 31, 2025

Study Completion Date

October 31, 2025

Conditions
Rubinstein-Taybi Syndrome
Interventions
PROCEDURE

skin biopsy for the primary fibroblast culture and a 15 ml blood sample (3 unnamed samples of 5ml) in each of the 4 SRT patients included.

Performed with a 3 mm diameter punch under local anesthesia. The procedure can be done in a consultation office respecting a strict asepsis.

OTHER

Generation of Induced Pluripotent Stem Cells (iPSC) from fibroblasts obtained by skin biopsy

induced Pluripotent Stem Cells (iPSC) production of patients with CREBBP mutation and differentiation into cortical neurons and pyramidal neurons

OTHER

Histone acetylation profiles of cells of SRT patients with CREBBP mutations

Study of acetylome by liquid chromatography coupled with tandem mass spectrometry (LC-MS / MS) Validation of specific acetylation targets by ChIP-Sequencing

OTHER

Functional involvement of identified epigenetic alterations

Transcriptome analysis with RNA-Seq Generation of isogenic iPSC clones by correction of CREBBP mutations in SRT patients by CrispR-Cas9.

BIOLOGICAL

Culture of lymphoblastoid line from blood sample

Achievement of a ficoll Culture of lymphoblasts and conservation Establishment of lymphoblastoid line and conservation

Trial Locations (1)

33400

RECRUITING

Centre Hospitalier Universitaire de Bordeaux, Talence

All Listed Sponsors
lead

University Hospital, Bordeaux

OTHER