RT Journal Article SR Electronic T1 Ultrafast immunostaining of organ-scale tissues for scalable proteomic phenotyping JF bioRxiv FD Cold Spring Harbor Laboratory SP 660373 DO 10.1101/660373 A1 Dae Hee Yun A1 Young-Gyun Park A1 Jae Hun Cho A1 Lee Kamentsky A1 Nicholas B. Evans A1 Alex Albanese A1 Katherine Xie A1 Justin Swaney A1 Chang Ho Sohn A1 Yuxuan Tian A1 Qiangge Zhang A1 Gabi Drummond A1 Webster Guan A1 Nicholas DiNapoli A1 Heejin Choi A1 Hae-Yoon Jung A1 Luzdary Ruelas A1 Guoping Feng A1 Kwanghun Chung YR 2019 UL http://biorxiv.org/content/early/2019/06/05/660373.abstract AB Studying the function and dysfunction of complex biological systems necessitates comprehensive understanding of individual cells. Advancements in three-dimensional (3D) tissue processing and imaging modalities have enabled rapid visualization and phenotyping of cells in their spatial context. However, system-wide interrogation of individual cells within large intact tissue remains challenging, low throughput, and error-prone owing to the lack of robust labeling technologies. Here we introduce a rapid, versatile, and scalable method, eFLASH, that enables complete and uniform labeling of organ-scale tissue within one day. eFLASH dynamically modulates chemical transport and reaction kinetics to establish system-wide uniform labeling conditions throughout the day-long labeling period. This unique approach enables the same protocol to be compatible with a wide range of tissue types and probes, enabling combinatorial molecular phenotyping across different organs and species. We applied eFLASH to generate quantitative maps of various cell types in mouse brains. We also demonstrated multidimensional cell profiling in a marmoset brain block. We envision that eFLASH will spur holistic phenotyping of emerging animal models and disease models to help assess their functions and dysfunctions.