Related Experiment Video
Updated: Apr 24, 2026
07:39
Mouse In Vivo Placental Targeted CRISPR Manipulation
Published on: April 14, 2023
3.7K
CX3CR1 regulates the immune microenvironment in the placenta
Samuel H Leeds1, Nickolas Neokosmidis1, David M Haas2
1Department of Comparative Pathobiology, Purdue University, West Lafayette, IN, United States.
Journal of Immunology (Baltimore, Md. : 1950)
|April 22, 2026
Summary
The fractalkine receptor CX3CR1 is vital for regulating the maternal-fetal immune environment. Targeting the CX3CL1/CX3CR1 axis may prevent pregnancy complications from immune dysregulation.
Area of Science:
- Reproductive immunology
- Maternal-fetal medicine
- Inflammation research
Background:
- The maternal-fetal interface has a tightly regulated immune environment crucial for healthy pregnancy.
- Immune dysregulation at this interface can lead to obstetric disorders like preeclampsia and miscarriage.
- Current anti-inflammatory treatments pose risks to mother and child.
Purpose of the Study:
- To investigate the immune regulatory role of the fractalkine receptor CX3CR1 at the maternal-fetal interface.
- To explore CX3CR1 as a potential therapeutic target for pregnancy complications.
Main Methods:
- Investigated CX3CR1 expression in placental and decidual immune cells.
- Analyzed the role of CX3CR1 in immune cell regulation and placental development.
Main Results:
- CX3CR1 is widely expressed on placental/decidual immune cells, particularly maternal and fetal macrophages and monocytes.
- CX3CR1 plays a critical role in regulating the immune microenvironment.
- CX3CR1 is important for the formation of maternal sinusoids in the placental labyrinth.
Conclusions:
- CX3CR1 has a significant immunoregulatory function at the maternal-fetal interface.
- The CX3CL1/CX3CR1 axis represents a promising therapeutic target to mitigate adverse pregnancy outcomes linked to immune imbalance.
