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The Immune Base of Endometriosis

Sponsor
Sheba Medical Center (Other)
Overall Status
Withdrawn
CT.gov ID
NCT00370123
Collaborator
(none)
50
Enrollment

Study Details

Study Description

Brief Summary

Endometriosis is a chronic disabling inflammatory disease which effects 15-20% of women in their reproductive life.

In patients suffering from endometriosis retrograded menstrual cells induce an inflammatory response.Endometriosis has also been considered to be an autoimmune disease, owing to the presence of auto antibodies, the association with other autoimmune diseases and recurrent immune-mediated abortion.

We aim to study this aberrant regulation of endometrial cell apoptosis by investigating the peripheral blood immune system of patients suffering from endometriosis.

Hypothesis:

We hypothesized that immune peripheral mononuclear cells of patients suffering from pelvic endometriosis react differently to eutopic endometrial cells than matched control women group. This difference could be study on a molecular, antigenic and/or apoptotic cycle gene expression. We also hypothesized that a deficiency of regulatory T cells is associated with the progression of endometriosis.

Condition or Disease Intervention/Treatment Phase

    Detailed Description

    Endometriosis affects 15-20% of women in their reproductive life. Endometriosis is a chronic disabling inflammatory disease, characterized by implantation and growth of endometrial tissue (glandular epithelium and stroma) outside the uterine cavity.

    Retrograde menstruation was found in 80%-90% of women. In most women these endometrial cells undergo apoptosis. In patients suffering from endometriosis this cells induce an inflammatory response. Pelvic endometriosis is associated with intrinsic anomalies of the refluxed endometrium, increased secretion of pro-inflammatory cytokines, neoangiogenesis, and impaired function of cell-mediated natural immunity.

    Endometriosis has also been considered to be an autoimmune disease, owing to the presence of auto antibodies, the association with other autoimmune diseases and recurrent immune-mediated abortion.

    Evidence suggests that Foxp3-expressing CD4+CD25+ regulatory T cells play a crucial role in the suppression of inflammatory disease. However, their role in the suppression of endometriosis has not yet been addressed.

    We aim to study this aberrant regulation of endometrial cell apoptosis by investigating the peripheral blood immune system of patients suffering from endometriosis.

    Hypothesis:

    We hypothesized that immune peripheral mononuclear cells of patients suffering from pelvic endometriosis react differently to eutopic endometrial cells than matched control women group. This difference could be study on a molecular, antigenic and/or apoptotic cycle gene expression. We also hypothesized that a deficiency of regulatory T cells is associated with the progression of endometriosis.

    Study design:

    This is an open labeled prospective in vitro study for two years.

    Patients:

    50 Patients suffering from endometriosis undergoing laparoscopy will be compared to 50 patients undergoing laparoscopy for other reasons.

    Methods:

    1. Blood withdrawal and pipelle endometrial cells harvesting 2. Isolation of peripheral blood mononuclear cells (PBMC) 3. Generation of T cell lines (from patients) 4. Measurement of cytokines 5. Determination of T- cell subsets by flow cytometry 5. PMNC and T cell lines will be frozen in liquid nitrogen and stored at-70C for future studies.

    2. Endometrial tissue will be served ad antigenic source to generated T cell lines and the remnants will be stored at-70C for future studies.

    Study Design

    Study Type:
    Observational
    Anticipated Enrollment :
    50 participants
    Observational Model:
    Cohort
    Time Perspective:
    Prospective
    Official Title:
    In This Study we Aim to Explore the Immune Nature of Endometriosis as Manifested in the Peripheral Blood, Endometriosis Lesions, Normal Peritoneum and Normal Endometrium of Patients Suffering From Documented Endometriosis.
    Study Start Date :
    Sep 1, 2006

    Outcome Measures

    Primary Outcome Measures

      Eligibility Criteria

      Criteria

      Ages Eligible for Study:
      18 Years to 45 Years
      Sexes Eligible for Study:
      Female
      Accepts Healthy Volunteers:
      Yes
      Inclusion Criteria:
      • laparoscopically proven endometriosis

      Contacts and Locations

      Locations

      No locations specified.

      Sponsors and Collaborators

      • Sheba Medical Center

      Investigators

      • Study Chair: Mati Mandel, MD, Sheba Medical Center

      Study Documents (Full-Text)

      None provided.

      More Information

      Publications

      None provided.
      Responsible Party:
      , ,
      ClinicalTrials.gov Identifier:
      NCT00370123
      Other Study ID Numbers:
      • SHEBA-06-4251-RM-CTIL
      First Posted:
      Aug 30, 2006
      Last Update Posted:
      Jun 28, 2011
      Last Verified:
      Jun 1, 2011
      Keywords provided by , ,
      endometriosis
      apoptosis
      regulatory T cells
      Additional relevant MeSH terms:
      Endometriosis

      Study Results

      No Results Posted as of Jun 28, 2011