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Development of an in Vitro Hematopoietic Culture System and Application to Myelodysplastic Syndromes.

NCT03107273 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 35

Last updated 2019-01-23

No results posted yet for this study

Summary

Myelodysplastic syndromes (MDS) are myeloid hemopathies characterized by ineffective clonal haematopoiesis, peripheral cytopenias and a predisposition to the occurrence of acute myeloid leukemias. Their diagnosis involves a cytological evaluation of the medulla, while their prognosis, in addition to extrinsic factors depending on the patient himself (age, comorbidities), intrinsic factors. The cytological evaluation is subject to a certain subjectivity since qualitative and the diagnosis is sometimes difficult in the absence of marker of clonality. More and more studies emphasize the interest of flow cytometry (CMF) in the diagnosis of SMD: by looking for qualitative and / or quantitative aberrations of the expression of membrane markers, CMF allows to establish scores Diagnosis that we have put in place within the laboratory. However, these studies are based on a static model that studies the phenotypic characteristics of patients at a given time but does not really reflect ineffective hematopoiesis. A dynamic model for in vitro reproduction of hematopoiesis would be an innovative tool for the study of SMD. This project aims to develop and standardize a system of differentiation in liquid medium of hematopoietic stem cells (CSH) in mature cells by studying each stage of the differentiation in terms of proliferation, apoptosis and phenotypic expression. HSCs will be obtained by CD34 + sorting from the medullary sample at diagnosis: the investigator will study cell proliferation, apoptosis and the acquisition of surface markers, in order to identify the quantitative and qualitative abnormalities associated with the differentiation of haematopoietic progenitors Smart. This should make it possible to identify diagnostic and prognostic factors in terms of response to treatment, acutism and survival.

Conditions

Interventions

OTHER

Dynamic cultures of in vitro hematopoietic stem cells

Improvement of prognostic scores used in myelodysplastic syndromes by identifying by dynamic in vitro culture of hematopoietic stem cells dynamic factors, reflections of ineffective haematopoiesis

Sponsors & Collaborators

  • Centre Hospitalier Universitaire, Amiens

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-06-16
Primary Completion
2018-01-23
Completion
2018-01-23

Countries

  • France

Study Locations

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Entities

Diseases

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 NCT03107273 on ClinicalTrials.gov