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A single gene can control brain cell growth in humans, research shows

by Medical Finance
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A single gene can control brain cell growth in humans, research shows
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Controlling how cells grow is fundamental to ensuring proper brain development and stopping aggressive brain tumors. The network of molecules that control brain cell growth is thought to be complex and vast, but now McGill University researchers provide striking evidence of a single gene that can, by itself, control brain cell growth in humans.

In a paper published recently in Stem Cell reports, Carl Ernst, an Associate Professor in the Department of Psychiatry at McGill University and his team have shown that the loss of the FOXG1 gene in brain cells from patients with severe microcephaly – a disease where the brain does not grow large enough – reduces brain cell growth.

Using genetic engineering, they turned on FOXG1 in cells from a microcephaly patient to different levels and showed corresponding increases in brain cell growth. They have uncovered a remarkable dimmer switch to turn brain cell growth up or down.

Their research indicates that a single gene could potentially be targeted to stop brain tumor cells from growing. Or that future gene therapy might allow this same gene to be turned up in patients with microcephaly or other neurodevelopmental disorders.

Source:

Journal reference:

Hettige, N.C., et al. (2022) FOXG1 dose tunes cell proliferation dynamics in human forebrain progenitor cells. Stem Cell Reports. doi.org/10.1016/j.stemcr.2022.01.010.

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