Healthy Volunteers Clinical Trial
Official title:
Bone Marrow Cell Engraftment of the Uterus and Genetic Studies of Reproductive Functioning
Background:
- Some transplant recipients have been found to have cells in their uterus that come from the
donor. Researchers want to study uterine tissue from three different groups of women: (1)
healthy volunteers, (2) people who have had a stem cell transplant, and (3) people with rare
diseases or conditions that affect reproduction. These samples will help researchers learn
more about the way stem cells work in the reproductive tract.
Objectives:
- To collect cells from the uterus to study how stem cells work in the reproductive tract.
Eligibility:
- Women at least 18 years of age.
Design:
- Participants will be screened with a physical exam and medical history. They will also
have blood and urine tests.
- Participants will have an endometrial biopsy to collect cells for study. The biopsy
visit will take 1 to 2 hours.
Transplantation with hematopoietic cells has been used for a wide variety of blood disorders,
but also for diseases like solid organ cancers. Interestingly, women who have had bone marrow
transplants have been found to have donor tissue in their endometrium, which raises the
possibility of cellular therapies using bone marrow derived cells for gynecologic
indications. Donor engraftment does not appear to occur when transplantations were performed
with stem cells collected from peripheral blood of the donor. Therefore, the subtype of cells
from the bone marrow responsible for engraftment is not yet known, nor is the ideal
transplantation regimen known.
The immediate aim of this tissue procurement protocol is to obtain endometrial (uterine) stem
cells from many human volunteers in order to examine the biological properties of those
cells. We will collect tissue from 3 primary groups of patients: normal controls, patients
with rare diseases or reproductive disorders, and patients who have undergone hematopoietic
stem cell transplant. Each volunteer will undergo an endometrial biopsy during an office
visit. The endometrial tissue will then be studied for a better understanding of their
biological properties, growth and differentiation. One specific area of interest is to study
how hematopoietic transplantation impacts endometrial cell function. These endometrial cells
will be analyzed in-depth in the laboratory to determine if they came from the donor or
recipient, and if so, which specific populations of cells. Hematologic pre-transplant
conditioning information will be correlated with these research studies to identify factors
that may assist with the understanding of adult endometrial stem cell biology.
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