首页|A phase separation-fortified bi-specific adaptor for conditional tumor killing
A phase separation-fortified bi-specific adaptor for conditional tumor killing
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A common approach in therapeutic protein development involves employing synthetic ligands with multivalency,enabling sophisticated control of signal transduction.Leveraging the emerging concept of liquid-liquid phase separation(LLPS)and its ability to organize cell surface receptors into functional compartments,we herein have designed modular ligands with phase-separation modalities to engineer programmable interreceptor communications and precise control of signal pathways,thus inducing the rapid,potent,and specific apoptosis of tumor cells.Despite their simplicity,these"triggers",named phase-separated Tumor Killers(hereafter referred to as psTK),are sufficient to yield interreceptor clustering of death receptors(represented by DR5)and tumor-associated receptors,with notable features:LLPS-mediated robust high-order organization,well-choreographed conditional activation,and broad-spectrum capacity to potently induce apoptosis in tumor cells.The development of novel therapeutic proteins with phase-separation modalities showcases the power of spatially reorganizing signal transduction.This approach facilitates the diversification of cell fate and holds promising potential for targeted therapies against challenging tumors.
State Key Laboratory of Membrane Biology,Frontier Research Center for Biological Structure,Tsinghua University-Peking University Joint Center for Life Sciences,School of Life Sciences,Tsinghua University,Beijing 100084,China
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