2020
DOI: 10.1007/s12195-020-00640-1
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Pre-existing Cell States Control Heterogeneity of Both EGFR and CXCR4 Signaling

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Cited by 10 publications
(9 citation statements)
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References 60 publications
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“…Apart from the highlighted cell-to-cell variations in cell movement, signaling, and morphology fluctuations, initial and average values also show a range of deviations among cells in our single-cell analysis, as reported in past works (5,7,(23)(24)(25). We ask to what extent fluctuation is an independent descriptor of heterogeneity on top of cell-to-cell variability in initial and average values (Fig.…”
Section: A-ii)supporting
confidence: 58%
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“…Apart from the highlighted cell-to-cell variations in cell movement, signaling, and morphology fluctuations, initial and average values also show a range of deviations among cells in our single-cell analysis, as reported in past works (5,7,(23)(24)(25). We ask to what extent fluctuation is an independent descriptor of heterogeneity on top of cell-to-cell variability in initial and average values (Fig.…”
Section: A-ii)supporting
confidence: 58%
“…However, our group discovered marked heterogeneity in activation of intracellular signaling and chemotaxis among seemingly identical CXCR4-positive cancer cells treated with CXCL12 (4,5). Such heterogeneity is not unique to CXCL12-CXCR4 as prior studies report similar responses to other signaling molecules, such as EGF and EGFR (6)(7)(8)(9). These responses are not simply due to stochasticity but contain governing rules behind (10,11).…”
Section: Introductionmentioning
confidence: 79%
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“…The prevailing dogma is that heterogeneity among cancer cells arises randomly, generating "greedy individuals" that compete for growth factors and optimal environments. However, recent data suggest that cancer cells function cooperatively as a tissue-like entity, and work by our group and others demonstrate that single-cell differences in signaling and function among cancer cells can arise predictably with consistent variations across a population as a whole (Spencer et al, 2009;Overton et al, 2014;Spinosa et al, 2019;Spinosa et al, 2020;Zhan et al, 2020;Kinnunen et al, 2022). These observations imply that tumor progression benefits from or even requires interactions among distinct subgroups of cells (Marusyk et al, 2014).…”
Section: Introductionmentioning
confidence: 86%
“…We engineered the MDA-MB-231 cells used in this work to stably express 3 fluorescent proteins: kinase translocation reporters (KTRs) for kinases Akt (mAquamarine) and ERK (mCitrine), and a stable histone-2B (H2B) nuclear marker (mCherry), as described previously 15,16 . MDA-MB-231 cells also expressed a puromycin selection marker.…”
Section: Stable Cell Line Generationmentioning
confidence: 99%