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Microchimerism Could Prove to Be One of the Most Intriguing Chapters in the History of Human Evolution – Elite IVF LLC

Elite IVF/LinkedIn

Oct 1, 2025, 10:22

Microchimerism Could Prove to Be One of the Most Intriguing Chapters in the History of Human Evolution – Elite IVF LLC

Elite IVF shared a post on LinkedIn about a paper by Katherine J. Wu published on The Atlantic:

“During pregnancy, a fascinating phenomenon called microchimerism occurs: fetal cells cross the placenta and lodge in different organs of the mother, such as the heart, lungs, liver, and brain, where they can remain for decades.

And the journey is two-way: maternal cells also migrate to the fetus’s body, persisting into adulthood.

This means that every person who has ever gestated or been gestated carries living fragments of other people, and these exchanges can extend across generations. You may have cells in your body from your mother, your maternal grandmother, older siblings, and even from pregnancies terminated before birth.

Although part of the scientific community questions the biological relevance of these cells, research indicates that they are not mere ‘passengers’: they can influence immunity, the risk of autoimmune diseases, reproductive success, and even brain function.

What is certain is that they are genetically distinct entities, coexisting and interacting with our own cells. If the boldest hypotheses are confirmed, microchimerism could prove to be one of the most intriguing, yet still little explored, chapters in the history of human evolution.

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Microchimerism Could Prove to Be One of the Most Intriguing Chapters in the History of Human Evolution – Elite IVF LLC