Somatic Stem Cells in Endometriosis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01412138
Recruitment Status : Unknown
Verified April 2015 by Carlos Simon, Instituto Valenciano de Infertilidad, IVI VALENCIA.
Recruitment status was:  Active, not recruiting
First Posted : August 9, 2011
Last Update Posted : April 22, 2015
Information provided by (Responsible Party):
Carlos Simon, Instituto Valenciano de Infertilidad, IVI VALENCIA

Brief Summary:
Human endometrium is a very dynamic tissue characterized by cyclical process of proliferation, differentiation and cellular shedding as part of each menstrual cycle. This issue suggests the presence of somatic stem cells. Endometriosis is characterized by presence of endometrium outside the uterine cavity. The existence of a somatic stem cell population in endometrium could explain the incorrect proliferation of these cells, which would lead to formation of endometriotic foci.

Condition or disease Intervention/treatment
Endometriosis Other: genetic analysis

Detailed Description:

Throughout the life of the woman, the endometrium undergoes a series of continuous modifications that require a highly accurate feedback mechanism and specialized and must be based on the activity of the stem cell population.

Endometriosis is an estrogen-dependent chronic disease characterized by the presence of functional endometrium outside the uterine cavity, mainly in the peritoneum and ovary (Giudice and Kao, 2004). It affects 6-10% of women of reproductive age, often resulting in a series of gynecological problems, including dysmenorrhea, pelvic pain and infertility. The nature of endometriosis suggests that the initiation of ectopic endometrial lesions may be due to stem or progenitor cells, which is consistent with the theory of retrograde menstruation (Starzinski-Powitz et al. 2001; Leyendecker et al. 2002, Gargett, 2006; Gargett, 2007, Sasson and Taylor, 2008). To date, no direct evidence of the role of somatic stem cells of the endometrium in the pathogenesis of endometriosis. However, numerous studies show that ectopic endometrial cells implant in many established models used for the study of endometriosis.(Masuda et al., 2007b; Sasson and Taylor, 2008; Gargett y Masuda.,2010)

Study Type : Observational
Estimated Enrollment : 30 participants
Time Perspective: Prospective
Official Title: "Identification, Characterization and Isolation of Somatic Stem Cells in Human Endometrium of Women With Endometriosis"
Study Start Date : March 2011
Estimated Primary Completion Date : April 2016
Estimated Study Completion Date : April 2016

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Endometriosis

Group/Cohort Intervention/treatment
Other: genetic analysis
  1. To identify by flow cytometry through technique of "Side Population" the population of somatic stem cells present in both human endometrial eutopic and ectopic endometrium of women with ovarian endometriosis, peritoneal and recto-vaginal.
  2. In vitro culture conditions for cell proliferation.
  3. To characterize the somatic stem cell population using techniques of endometriotic cell and molecular biology.
  4. Compare the results obtained from patients with endometriosis with control patients (without endometriosis) earlier work by our group.

Primary Outcome Measures :
  1. Characterization of endometrial stem cells through Flow Citometry and Side Population techniques and In vitro culture cellular proliferation to then characterize the cell population through molecular and cellular techniques. [ Time Frame: TWO YEARS ]

Biospecimen Retention:   Samples With DNA
endometrial biopsy

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Ages Eligible for Study:   20 Years to 40 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Women with endometrial infertility factor, undergoing ART.

Inclusion Criteria:

Inclusion criteria for patients with endometriosis:

  1. Female patients with ovarian endometriosis, peritoneal and recto-vaginal.
  2. Aged between 20 and 40.
  3. Signing of informed consent for collection and storage of biological samples.

Exclusion Criteria:

  1. Contraindications for endometrial biopsy.
  2. Failure to sign informed consent for collection and storage of biological samples.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01412138

IVI Valencia
Valencia, Spain, 46015
Sponsors and Collaborators
Principal Investigator: Carlos Simon, MDPhd IVI Valencia

Responsible Party: Carlos Simon, Principal Investigator, Instituto Valenciano de Infertilidad, IVI VALENCIA Identifier: NCT01412138     History of Changes
Other Study ID Numbers: 1006-C-073-CS-F
First Posted: August 9, 2011    Key Record Dates
Last Update Posted: April 22, 2015
Last Verified: April 2015

Additional relevant MeSH terms:
Genital Diseases, Female