NIH-funded research R21 grant

Investigating the role of specific human retroviruses in germ cell development

Official title: Roles of the LTR5_Hs human-specific endogenous retroviruses in primordial germ cells

Funded at Massachusetts General Hospital · NIH-10898550 · Data updated 2026-11-12

This study is looking at how a specific virus in our cells affects the way stem cells turn into germ cells, which are important for reproduction, and it’s designed for anyone interested in understanding more about human development and fertility.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionMassachusetts General Hospital
NIH-funded
Lab location1 site (Boston, United States)
Project startAugust 3, 2023
Project endJuly 31, 2025
Funding year2024
Award (this year)$208,750
NIH project number5R21HD110839-02
Project IDNIH-10898550 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals experiencing infertility or those interested in the biological mechanisms of germ cell development.

Less likely to help

Patients who are not affected by infertility or who do not have an interest in reproductive biology may not benefit from this research.

What this research studies

This research explores how a specific type of human endogenous retrovirus, known as LTR5_Hs, is activated in primordial germ cells and human pluripotent stem cell-derived models. The study aims to understand the mechanisms by which LTR5_Hs influences the differentiation of stem cells into germ cells and the release of virus-like particles from these cells. By utilizing advanced techniques such as CRISPR interference, the researchers will manipulate the expression of LTR5_Hs to observe its effects on cell behavior and development. This could provide insights into the fundamental processes of human reproduction and cell differentiation.

Why it matters

Potential benefit: If successful, this research could enhance our understanding of human germ cell development and potentially lead to new treatments for infertility.

How similar studies have gone: Previous research has shown promising results in understanding the roles of endogenous retroviruses in human biology, indicating that this approach may yield valuable insights.

Where this research is happening

  • Massachusetts General Hospital
    Boston, United States
    Active

Researchers

  • Principal investigator: Shioda, Toshihiro — Massachusetts General Hospital
  • Study coordinator: Shioda, Toshihiro

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.
Last reviewed 2026-11-14 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.