From major highways to little alleys in the meninges , 2024
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Photograph

Cardiovascular Research Institute at Mount Sinai

The brain has protective layers called meninges that play a crucial role in its immune surveillance. Here we can observe a complete view of the outermost meningeal layer called the dura mater. In the images, blood vessels (shown in green) and lymphatic vessels (in red) are intertwined to form a traffic network for immune cells, such as macrophages (also in red) and B lymphocytes, to flow in and out of the brain. The flow of these B cells from blood vessel highways to little alleys in the meninges is important in sleep, a topic we are currently studying in the Swirski lab.

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