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2016 ; 139
(12
): 2850-2858
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Alternating electric fields (TTFields) in combination with paclitaxel are
therapeutically effective against ovarian cancer cells in vitro and in vivo
#MMPMID27561100
Voloshin T
; Munster M
; Blatt R
; Shteingauz A
; Roberts PC
; Schmelz EM
; Giladi M
; Schneiderman RS
; Zeevi E
; Porat Y
; Bomzon Z
; Urman N
; Itzhaki A
; Cahal S
; Kirson ED
; Weinberg U
; Palti Y
Int J Cancer
2016[Dec]; 139
(12
): 2850-2858
PMID27561100
show ga
Long-term survival rates for advanced ovarian cancer patients have not changed
appreciably over the past four decades; therefore, development of new, effective
treatment modalities remains a high priority. Tumor Treating Fields (TTFields), a
clinically active anticancer modality utilize low-intensity, intermediate
frequency, alternating electric fields. The goal of this study was to evaluate
the efficacy of combining TTFields with paclitaxel against ovarian cancer cells
in vitro and in vivo. In vitro application of TTFields on human ovarian cancer
cell lines led to a significant reduction in cell counts as compared to untreated
cells. The effect was found to be frequency and intensity dependent. Further
reduction in the number of viable cells was achieved when TTFields treatment was
combined with paclitaxel. The in vivo effect of the combined treatment was tested
in mice orthotopically implanted with MOSE-L(TICv) cells. In this model, combined
treatment led to a significant reduction in tumor luminescence and in tumor
weight as compared to untreated mice. The feasibility of effective local delivery
of TTFields to the human abdomen was examined using finite element mesh
simulations performed using the Sim4life software. These simulations demonstrated
that electric fields intensities inside and in the vicinity of the ovaries of a
realistic human computational phantom are about 1 and 2 V/cm pk-pk, respectively,
which is within the range of intensities required for TTFields effect. These
results suggest that prospective clinical investigation of the combination of
TTFields and paclitaxel is warranted.