Ignite Creation Date:
2025-12-25 @ 3:37 AM
Ignite Modification Date:
2026-02-28 @ 3:47 AM
Study NCT ID:
NCT02980302
Status:
COMPLETED
Last Update Posted:
2018-10-12
First Post:
2016-07-28
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Development of the Tool " iPSC " for the Functional Study of Mutations Responsible for Mental Retardation
Sponsor:
University Hospital, Grenoble
Organization:
Study Overview
Official Title:
Development of the Tool " iPSC " (Induced Pluripotent Stem Cells) for the Functional Study of Mutations Responsible for Mental Retardation - Application to Familial Study of MYT1L Gene Mutations
Status:
COMPLETED
Status Verified Date:
2018-10
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
Rementips
Brief Summary:
According to the World Health Organization (WHO), mental retardation (MR) is defined by an intelligence quotient (IQ) \< 70 and touches between 1 to 3 % of the general population. Profound mental retardation (QI \<25), severe (IQ: 25-40) and moderate (QI : 40-50) have a prevalence of 0,3-0,5% while the prevalence of mild MR, defined by an IQ between 50 and 70 is evaluated to about 1,5 %.
The origin of MR can be infectious, toxic, traumatic, genetic or environmental. genetic causes of MR gather the number and structure anomalies of the chromosomes, the genomic microreorganization, monogenic diseases and more rarely other non Mendelian-inherited anomalies like print or epigenetic anomalies, mutations of the mitochondrial genome etc... Genetic causes represents 50% of moderate to severe, whereas environmental factors (malnutrition, cultural deprivation,...) plays an important role in mild MR.
The main goal of this study is to get an innovative tool (neuronal distinction of iPSC) that wil allow to study the functionnal impact of mutations uppon genes probably involved in MR like MYT1L. The main criteria associated to characterisation of the tool by the trial is the study of the pluripotency of iPSC obtained and to highlight the mutation of the gene MYT1L in the iPSC.
Neurons from the iPSC of the patient and his father du patient wille also be morphologically characterised, but also thanks to the expression of specifically neurals genes.
Characteristics of iPSC and neurons from d'iPSC with MYT1L mutation will be compared among the patient and his father, in relation with the same cells coming from the two witnesses.
The origin of MR can be infectious, toxic, traumatic, genetic or environmental. genetic causes of MR gather the number and structure anomalies of the chromosomes, the genomic microreorganization, monogenic diseases and more rarely other non Mendelian-inherited anomalies like print or epigenetic anomalies, mutations of the mitochondrial genome etc... Genetic causes represents 50% of moderate to severe, whereas environmental factors (malnutrition, cultural deprivation,...) plays an important role in mild MR.
The main goal of this study is to get an innovative tool (neuronal distinction of iPSC) that wil allow to study the functionnal impact of mutations uppon genes probably involved in MR like MYT1L. The main criteria associated to characterisation of the tool by the trial is the study of the pluripotency of iPSC obtained and to highlight the mutation of the gene MYT1L in the iPSC.
Neurons from the iPSC of the patient and his father du patient wille also be morphologically characterised, but also thanks to the expression of specifically neurals genes.
Characteristics of iPSC and neurons from d'iPSC with MYT1L mutation will be compared among the patient and his father, in relation with the same cells coming from the two witnesses.
Detailed Description:
None
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: