YouTube video by Joy Kong, MD examining whether intravenously delivered stem cells become 'trapped' in the lungs. The speaker notes early studies reported pulmonary entrapment, but later studies found that cells become undetectable (including in the lungs) within about three days, likely because they disperse or are cleared. The clip frames the lung-trapping idea as an enduring but revised concept.
When we give stem cells through the IV route, don't they get trapped in the lungs? So this lung trapping concept has been stuck for some time. Sometimes old concepts die hard. So, yes, initially there's some research showing that cells tend to be trapped in the lungs, but later on, there's some other studies that actually showed when you give cells through the IV route within three days is not detectable. It's actually not detectable anywhere. Not in the lungs, not in any other places. Guess what? Because they're so diffused.
