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Familial Aortopathies and Cellular Exploration

NCT05401500 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 3

Last updated 2022-06-02

No results posted yet for this study

Summary

The prevalence of hereditary aortic disease (HTAD), responsible for aneurysm or dissection, is estimated at 25%. Mutations in the ACTA2 gene represent the main cause of non-syndromic forms (10-21%). ACTA2 is expressed in vascular wall smooth muscle cells (VSMC) and encodes alpha actin (α-SMA). This actin isoform is in the majority in VSMCs and plays a key role in their contractile properties. The mutations are dominant-negative and lead, in a fibroblast model, to defects in the organisation of the actin cytoskeleton and to an increase in the migratory and proliferative potential of the cells. In vivo, VSCMs exist in a phenotypic continuum ranging from a quiescent differentiated contractile state to a so-called synthetic state in which cells are proliferative, synthesise extracellular matrix elements and exhibit enhanced migratory capabilities. To understand how ACTA2 mutations deregulate VSMC functions and steer them towards a synthetic phenotype, it is necessary to have a cellular model as close as possible to the affected tissue..

Conditions

  • Familial Aortopathies

Interventions

BIOLOGICAL

blood sample

blood sampling

Sponsors & Collaborators

  • Assistance Publique Hopitaux De Marseille

    lead OTHER

Principal Investigators

  • François Cremieux · Assistance Publique Hopitaux De Marseille

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-06-01
Primary Completion
2022-07-01
Completion
2023-06-01

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05401500 on ClinicalTrials.gov