a–d, Cellular analysis of four intracellular
proteins, including (a), vimentin, (b), POLRMT,
(c), Oct4, and (d), PARP1 in three prostate cancer
cell lines using the single-cell approach (left graphs) and flow cytometry
(right graphs). A total of 100 cells and 100,000 cells were used for the
single-cell analysis and flow cytometry trials, respectively. The agreement
between the intracellular protein expression indices determined using the
single-cell approach and flow cytometry indicates that the method is
quantitative. Error bars represent the s.d. of biological replicates (N=3).
Ordinary one-way ANOVA tests were used to analyse the data and Turkey’s
corrections with 95% confidence intervals and significance were used.
e, Analysis of vimentin in PC3 cells after knocking down the
VIM gene using the single-cell approach (left graph) and
flow cytometry (right graph). Error bars represent the s.d. of biological
replicates (N=3). Unpaired two-tailed Student’s t-test
was used to the analyse the data.