Tag

Lincx

All articles tagged with #lincx

Engineered Neural Bridges Could Rewire Damaged Brain Circuits
technology8 days ago

Engineered Neural Bridges Could Rewire Damaged Brain Circuits

Duke researchers developed LinCx, a system of engineered proteins that form targeted electrical connections between specific neurons to create a bypass around damaged brain circuits. In worms and mice, these custom electrical links strengthened communication, altered brain-wide activity, and changed behaviors related to social interaction and stress, suggesting a precision therapy for neurological disorders without external stimulation. The work, published in Nature, demonstrates long-lasting, cell-type-specific circuit edits and lays groundwork for future testing in models with genetic deficits.

Designer electrical synapses enable long-term, cell-type-specific circuit editing in mammals
science13 days ago

Designer electrical synapses enable long-term, cell-type-specific circuit editing in mammals

A team engineered a heterotypic electrical synapse using Morone americana connexins Cx34.7 and Cx35 (Cx34.7(M1)–Cx35(M1)) that dock exclusively with each other and not with endogenous mammalian connexins. They developed FETCH to screen docking compatibility, used computational modeling to design docking-specific mutants, and demonstrated functional, selective coupling in vitro and in vivo. In C. elegans, the designer synapse recoded a thermotaxis circuit similarly to native Cx36–Cx36 connections; in mice, targeted LinCx editing between PYR neurons and PV+ interneurons in the prefrontal cortex enhanced theta–HFO coupling and altered neuronal dynamics and social/exploratory behaviors. This work establishes a platform for durable, precise circuit modification with potential therapeutic applications.