1702-Inhibitory Circuit Control of Adult Glioma Progression

Adult glioma progression is heavily influenced by neural signaling, where excitatory circuits typically drive tumor growth through calcium dynamics. However, this study reveals that local inhibitory networks act as a natural brake on malignancy by forming functional GABAergic synapses with tumor cells. Enhancing inhibitory tone suppresses this calcium-driven oncogenic signaling, thereby reducing tumor proliferation and extending survival. Conversely, disrupting these inhibitory pathways accelerates cancer progression, demonstrating that brain tumor dynamics depend on the continuous balance between growth-promoting and growth-restraining neural inputs.

References:

• Uesaka N, Kumegawa K, Watanabe T, et al. Inhibitory circuits restrain adult glioma progression by suppressing calcium-driven oncogenic programs[J]. Neuron, 2026.