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Somatic Stem Cells in Endometriosis

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified April 2015 by Carlos Simon, Instituto Valenciano de Infertilidad, IVI VALENCIA.
Recruitment status was:  Active, not recruiting
Information provided by (Responsible Party):
Carlos Simon, Instituto Valenciano de Infertilidad, IVI VALENCIA Identifier:
First received: July 28, 2011
Last updated: April 21, 2015
Last verified: April 2015
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 Intervention
Endometriosis Other: genetic analysis

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: "Identification, Characterization and Isolation of Somatic Stem Cells in Human Endometrium of Women With Endometriosis"

Resource links provided by NLM:

Further study details as provided by Carlos Simon, Instituto Valenciano de Infertilidad, IVI VALENCIA:

Primary Outcome Measures:
  • 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

Estimated Enrollment: 30
Study Start Date: March 2011
Estimated Study Completion Date: April 2016
Estimated Primary Completion Date: April 2016 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
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.

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)


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.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01412138

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

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
Study First Received: July 28, 2011
Last Updated: April 21, 2015

Additional relevant MeSH terms:
Genital Diseases, Female processed this record on September 21, 2017