Large-scale control over collective cell migration using light-activated epidermal growth factor receptors.

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Tác giả: Daniel J Cohen, Payam E Farahani, Long Nguyen, Kevin Suh, Richard H Thornton, Jared E Toettcher

Ngôn ngữ: eng

Ký hiệu phân loại: 615.782 Central nervous system depressants

Thông tin xuất bản: United States : Cell systems , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 722773

Receptor tyrosine kinases (RTKs) play key roles in coordinating cell movement at both single-cell and tissue scales. The recent development of optogenetic tools for controlling RTKs and their downstream signaling pathways suggests that these responses may be amenable to engineering-based control for sculpting tissue shape and function. Here, we report that a light-controlled epidermal growth factor (EGF) receptor (OptoEGFR) can be deployed in epithelial cells for precise, programmable control of long-range tissue movements. We show that in OptoEGFR-expressing tissues, light can drive millimeter-scale cell rearrangements to densify interior regions or produce rapid outgrowth at tissue edges. Light-controlled tissue movements are driven primarily by phosphoinositide 3-kinase (PI3K) signaling, rather than diffusible ligands, tissue contractility, or ERK kinase signaling as seen in other RTK-driven migration contexts. Our study suggests that synthetic, light-controlled RTKs could serve as a powerful platform for controlling cell positions and densities for diverse applications, including wound healing and tissue morphogenesis.
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