Two separate research groups recently published work on the blood-brain barrier (BBB). You can think of the BBB like a bouncer that keeps the riffraff out of the VIP section that is your brain. One group advanced how the brain’s barrier is modeled in the lab using stem cells. Another group developed a harmless virus that can be delivered intravenously (by IV) and get past the brain’s barrier to deliver drugs. While Huntington’s disease (HD) wasn’t specifically studied in either publication, both can advance how we study HD in the lab and eventually treat the disease.
Your brain is a VIP
Your brain is like a VIP section – not everything floating around in your blood and body is allowed there. Bacteria and viruses that may make your stomach or lungs sick are kept out of the brain. Even certain medicines are excluded, like antibiotics.
The brain’s bouncer is called the blood-brain barrier, or BBB for short. The BBB is incredibly selective about what is allowed into our brains. It’s established very early during development, before we’re ever born. Because the brain is so delicate, the BBB ensures that only privileged molecules and substances can get in.