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Breast milk might hold key to better infant intake of medicines

  • Sarah Boden/WESA
Rachel Palencik poses for a photograph with her frozen breast milk Wednesday, June 17, 2015, in West Chester, Pa. About 4,000 mothers participate in 15 nonprofit milk banks across the United States, but the entry of for-profit milk banks has led to tensions as state lawmakers begin regulating the industry.  Palencik wants to be sure that her milk goes to a mom and infant who need it.

 Matt Rourke / AP Photo

Rachel Palencik poses for a photograph with her frozen breast milk Wednesday, June 17, 2015, in West Chester, Pa. About 4,000 mothers participate in 15 nonprofit milk banks across the United States, but the entry of for-profit milk banks has led to tensions as state lawmakers begin regulating the industry. Palencik wants to be sure that her milk goes to a mom and infant who need it.

While it’s widely known that breast milk offers babies health benefits, a Carnegie Mellon University researcher says it might also hold the answer to developing a better way for infants to ingest medicines.

That’s because, unlike formula, breast milk contains stem cells that can transform into any type of cell in the body. And breast milk stem cells have the special ability to exit the gastrointestinal tract.

“Nobody really understands why this is happening or perhaps just as importantly, how it’s happening, because the cells, they normally wouldn’t be able to do this,” said researcher Katie Whitehead, an associate professor at CMU’s Department of Biomedical Engineering.

After the cells are absorbed into the baby’s body, Whitehead said they “take up residence” in an infant’s organs and tissues.

“Some of these … begin to proliferate and somehow affect the baby’s functioning,” she said.

Whitehead said understanding how this happens might eventually lead to developing a way to coat medications in breast milk membrane, which could then be delivered to a baby’s body the same way as the milk cells.

“Right now, the therapeutic landscape for infants is very poor,” she said.

Whitehead’s lab at the Department of Biomedical Engineering is accepting breast milk donations. Because the milk cannot be frozen, donors can pump at a nearby lactation room.

This story originally appeared on WESA, which receives funding from CMU.

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