Gene editing tools can now alter social behavior, including aggression

Researchers have used CRISPR-Cas9 to knockout Avpr1a receptors in hamsters, eliminating vasopressin's social behavior regulation.

@AdamHuntTT
Published Tue, May 17 2022 4:01 AM CDT   |   Updated Sun, Jun 5 2022 10:56 PM CDT

A study on the gene editing breakthrough titled "CRISPR-Cas9 editing of the arginine-vasopressin V1a receptor produces paradoxical changes in social behavior in Syrian hamsters" has been published in the journal Proceedings of the National Academy of Sciences.

Gene editing tools can now alter social behavior, including aggression 01 | TweakTown.com

Researchers from Georgia State University used CRISPR-Cas9 genome-editing technology to remove the expression of the Avpr1a receptor in Syrian hamsters. By removing the genes encoding for Avpr1a, the receptor is no longer made, and vasopressin, which normally binds to that receptor, can no longer influence the social behavior it typically regulates, such as pair bonding, cooperation, communication, dominance, and aggression.

Without the receptors, the hamsters showed higher social communication behavior levels than those with intact receptors. Typical differences in aggressiveness between male and female hamsters were also eliminated, with both displaying high levels of aggression towards members of the same sex.

"We were really surprised at the results. We anticipated that if we eliminated vasopressin activity, we would reduce both aggression and social communication. But the opposite happened. This suggests a startling conclusion. Even though we know that vasopressin increases social behaviors by acting within a number of brain regions, it is possible that the more global effects of the Avpr1a receptor are inhibitory," said Regents' Professor of Neuroscience H. Elliott Albers.

"We don't understand this system as well as we thought we did. The counterintuitive findings tell us we need to start thinking about the actions of these receptors across entire circuits of the brain and not just in specific brain regions," Albers continued.

You can read more from the study here.

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Adam grew up watching his dad play Turok 2 and Age of Empires on a PC in his computer room, and learned a love for video games through him. Adam was always working with computers, which helped build his natural affinity for working with them, leading to him building his own at 14, after taking apart and tinkering with other old computers and tech lying around. Adam has always been very interested in STEM subjects, and is always trying to learn more about the world and the way it works.

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