Transarterial embolization increases the number and proportion of
tumor-infiltrating lymphocytes in the intratumoral compartment of
nontarget tumors. Box and whisker plots show (A) the
average number of CD3+, CD8+, FOXP3+,
and CD4+ cells (intrastromal and intratumoral cells) at 2
days (n = 4), 7 days (n = 6), and 12
days (n = 8) after embolization in nontarget tumors
relative to control (CTRL) tumors from rats that did not undergo
embolization (n = 12); (B) the average
number of cells within the intratumoral compartment of nontarget tumors
at 2, 7, and 12 days after embolization relative to control tumors; and
(C) the average percentage of cells found within the
intratumoral compartment as a function of total number of cells
(intrastromal plus intratumoral cells) in nontarget tumors at 2, 7, and
12 days after embolization relative to control tumors. Whiskers indicate
maximum and minimum values. Boxes extend from the 25th to 75th
percentiles. The line in the middle of the box is plotted at the median.
* = P < .05 and ** =
P < .01 according to the generalized
estimating equation model. Significant P values (left
to right): in B, .02, .04; in C, .02, .03,
.002, .01.