Uploaded June 2026 | Updated September 2026, 4 hours ago
During the first weeks of pregnancy, the developing placenta in a mother’s womb undergoes a dramatic change. Individual cells merge, forming a continuous barrier that will spend the next nine months ferrying oxygen and nutrients to the growing fetus while keeping the mother's immune system at bay. When this structure fails to form properly, pregnancies are at higher risk of complications, including preeclampsia and restricted fetal growth.
Now, scientists at Scripps Research have identified a key player in the placenta’s transformation—a molecule called galectin-3 that binds to sugar molecules on specific cell surface proteins, likely holding placental cells tightly together to fuse.
Learn more here:
https://www.scripps.edu/news-and-events/press-room/2025/20251105-huang-placental-formation.html
During the first weeks of pregnancy, the developing placenta in a mother’s womb undergoes a dramatic change. Individual cells merge, forming a continuous barrier that will spend the next nine months ferrying oxygen and nutrients to the growing fetus while keeping the mother's immune system at bay. When this structure fails to form properly, pregnancies are at higher risk of complications, including preeclampsia and restricted fetal growth.
Now, scientists at Scripps Research have identified a key player in the placenta’s transformation—a molecule called galectin-3 that binds to sugar molecules on specific cell surface proteins, likely holding placental cells tightly together to fuse.
Learn more here:
https://www.scripps.edu/news-and-events/press-room/2025/20251105-huang-placental-formation.html
