Mechanical phenotyping of HMECs undergoing immortalization.
(a) The stages of malignant progression
in breast epithelia. (b) wCDI
distribution of HMECs per the outlined immortalization steps when cells
were screened with an applied strain of ε~0.4 (n=54 for all
cases) Compared to primary cells (240L and 122L, respectively), each
population has following P values,
240L-p16sh: P=0.5306, 240Lp16sMY:
P=0.0003, 240L-D1: P=0.0005, 240LD1MY: P=0.0094, 122L-p16sh: P=0.0205, 122Lp16sMY: P=0.5668, 122L-D1: P=0.023,
and 122LD1MY: P=0.011. Statistical
differences were determined by a paired t-test. Within each box, the central red line is the median,
the red cross is an outlier, and the edges of the box correspond to 25 and
75% of the population. (c) Distribution
of instant (ΔTr~0,), transient (0<ΔTr⩽40 ms), or prolonged
(ΔTr>40 ms)
recovery within each HMEC population per immortalization step. The
statistical differences between the proportions of recovery types of
primary cells and each stage of malignant progression were evaluated by a
χ2 test.
For all graphs, *, **, ***, and **** indicate p⩽0.05, p⩽0.01, p⩽0.001, and p⩽0.0001, respectively.