An atlas of inter- and intra-tumor heterogeneity of apoptosis competency in colorectal cancer tissue at single-cell resolution.

An atlas of inter- and intra-tumor heterogeneity of apoptosis competency in colorectal cancer tissue at single-cell resolution.
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DOI:
10.1038/s41418-021-00895-9
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发表时间:
2022-04
影响因子:
12.4
通讯作者:
Prehn JHM
Prehn JHM
中科院分区:
生物学1区
文献类型:
--
作者:
Lindner AU;Salvucci M;McDonough E;Cho S;Stachtea X;O'Connell EP;Corwin AD;Santamaria-Pang A;Carberry S;Fichtner M;Van Schaeybroeck S;Laurent-Puig P;Burke JP;McNamara DA;Lawler M;Sood A;Graf JF;Rehm M;Dunne PD;Longley DB;Ginty F;Prehn JHM

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Cancer cells’ ability to inhibit apoptosis is key to malignant transformation and limits response to therapy. Here, we performed multiplexed immunofluorescence analysis on tissue microarrays with 373 cores from 168 patients, segmentation of 2.4 million individual cells, and quantification of 18 cell lineage and apoptosis proteins. We identified an enrichment for BCL2 in immune, and BAK, SMAC, and XIAP in cancer cells. Ordinary differential equation-based modeling of apoptosis sensitivity at single-cell resolution was conducted and an atlas of inter- and intra-tumor heterogeneity in apoptosis susceptibility generated. Systems modeling at single-cell resolution identified an enhanced sensitivity of cancer cells to mitochondrial permeabilization and executioner caspase activation compared to immune and stromal cells, but showed significant inter- and intra-tumor heterogeneity.
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