Hairy cells in the nose called brush cells may be involved in causing allergies
In mice, these cells trigger inflammation when exposed to mold and dust
![Brush cells in the lining of a mouse’s olfactory bulb](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/01/011720_ts_brush-cell_feat.jpg?fit=1028%2C579&ssl=1)
Brush cells (green) are abundant in the lining of a mouse’s olfactory bulb, which senses odors. The cells help detect invaders, including ones linked to allergies.
S. Ualiyeva et al/Science Immunology 2020