neural genes expressed in nasopharyngeal specimens

Question

Is it possible in a nasopharyngeal specimen genes of neural system to be expressed? For example, genes about neural differentiation?

Polypipe Wrangler · Answer

This paper mentions using a cytology brush (not the usual NP swab) to obtain cells from the olfactory epithelium. They obtained and cultured neural precursor cells. Have a look.
Trends in molecular medicine.
"The Olfactory Neural Epithelium as a Tool in Neuroscience"
Joëlle Lavoie, Patricia Gassó Astorga, [...], and Koko Ishizuka
from:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5399677/

neural genes expressed in nasopharyngeal specimens

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