How the uterus prepares for a healthy early pregnancy

Uterine epithelial ERα regulates preimplantation uterine immunity and sperm fitness

NIH-funded research University of Georgia · NIH-11139573

This research explores how the uterus's immune system, guided by a protein called ERα, helps sperm reach the egg and allows an embryo to successfully attach, aiming to understand why some pregnancies don't happen.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of Georgia NIH-funded
Lab location1 site (Athens, United States)
Project IDNIH-11139573 on NIH RePORTER

What this research studies

For a pregnancy to begin, sperm must travel through the uterus to fertilize an egg, and then the early embryo needs to attach properly to the uterine lining. This process is complex, and the uterus needs to create a welcoming environment for both sperm and the embryo, even though they are recognized as foreign by the body's immune system. This project looks at how a specific protein, ERα, in the uterine lining helps manage the immune system to allow sperm to move freely and embryos to implant successfully. By understanding these early steps, we hope to learn more about the causes of infertility and early pregnancy loss.

Who could benefit from this research

Good fit: Patients experiencing unexplained infertility or recurrent early pregnancy loss, particularly those with issues related to sperm migration or embryo implantation, might find this research relevant.

Not a fit: Patients whose infertility is clearly linked to factors other than uterine immune regulation or ERα function, such as fallopian tube blockages or severe male factor infertility, may not directly benefit from this specific line of research.

Why it matters

Potential benefit: This work could lead to a better understanding of why some women struggle to conceive or experience early pregnancy loss, potentially paving the way for new treatments.

How similar studies have performed: This project addresses a significant knowledge gap, building on preliminary data from the researchers that suggests a novel role for ERα in uterine immunity during early pregnancy.

Where this research is happening

Athens, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.