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Programming tissue-sensing T cells that deliver therapies to the brain
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Programming tissue-sensing T cells that deliver therapies to the brain ±à³Ì¸ÄÔì×éÖ¯¸ÐÓ¦Tϸ°ûÖ±´ï´óÄÔ½øÐÐÖÎÁÆ ¡ø ×÷ÕߣºMILOS S. SIMIC, PAYAL B. WATCHMAKER et al. ¡øÁ´½Ó£º https://www.science.org/doi/10.1126/science.adl4237 ¡øÕªÒª£º ΪÁËÉè¼ÆÄܹ»ÌØÒìÐÔ°ÐÏòÖÐÊàÉñ¾ÏµÍ³£¨CNS£©µÄϸ°û£¬ÎÒÃǼø¶¨ÁËϸ°ûÍâÖÐÊàÉñ¾ÏµÍ³ÌØÒìÐÔ¿¹Ô£¬°üÀ¨ÖÐÊàÉñ¾ÏµÍ³Ï¸°ûÍâ»ùÖʵijɷֺÍÔÚÉñ¾Ôª»ò½ºÖÊϸ°ûÉϱí´ïµÄ±íÃæ·Ö×Ó¡£ ÓÃÓÚ¼ì²âÕâЩ¿¹ÔµÄºÏ³ÉNotchÊÜÌå±»ÓÃÓÚ±à³Ì¸ÄÔìTϸ°û£¬½öÔÚ´óÄÔÖÐÓÕµ¼²»Í¬ÓÐÐ§ÔØºÉµÄ±í´ï¡£ÓÕµ¼Ç¶ºÏ¿¹ÔÊÜÌå±í´ïµÄCNS°ÐÏòTϸ°ûÓÐЧÇå³ýÁËÔ·¢ÐԺͼ̷¢ÐÔÄÔÖ×Áö£¬¶ø²»Ëðº¦ÄÔÍâ½»²æ·´Ó¦Ï¸°û¡£ ´ËÍ⣬¾Ö²¿µÝËÍÃâÒßÒÖÖÆÏ¸°ûÒò×Ó°×½éËØ¡ª10µÄÖÐÊàÉñ¾ÏµÍ³°ÐÏòϸ°û¿É¸ÄÉÆÐ¡ÊóÉñ¾Ñ×֢ģÐ͵ÄÖ¢×´¡£ ¡ø Abstract£º To engineer cells that can specifically target the central nervous system (CNS), we identified extracellular CNS-specific antigens, including components of the CNS extracellular matrix and surface molecules expressed on neurons or glial cells. Synthetic Notch receptors engineered to detect these antigens were used to program T cells to induce the expression of diverse payloads only in the brain. CNS-targeted T cells that induced chimeric antigen receptor expression efficiently cleared primary and secondary brain tumors without harming cross-reactive cells outside of the brain. Conversely, CNS-targeted cells that locally delivered the immunosuppressive cytokine interleukin-10 ameliorated symptoms in a mouse model of neuroinflammation. |
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