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Electrotransfer of plasmid DNA radiosensitizes B16F10 tumors through activation of immune response


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Histological sections of melanoma tumors on day 6 after the beginning of the therapy.CTRL = control; EP = electric pulses; GET = gene electrotransfer; IR = irradiation; TS = pET-antiCD105
Histological sections of melanoma tumors on day 6 after the beginning of the therapy.CTRL = control; EP = electric pulses; GET = gene electrotransfer; IR = irradiation; TS = pET-antiCD105

Immune response of melanoma tumors is observed by vitiligo effect.CTRL = control; EP = electric pulses; GET = gene electrotransfer; IR = irradiation; TS = pET-antiCD105
Immune response of melanoma tumors is observed by vitiligo effect.CTRL = control; EP = electric pulses; GET = gene electrotransfer; IR = irradiation; TS = pET-antiCD105

Immunohistological analysis of tumors

Therapeutic groupNecrosis (%)Apoptosis (%)Hypoxia (%)Proliferation (%)Vascularization (n of structures)Immune cells (n of cells)
AM  SEMAM  SEMAM  SEMAM  SEMAM  SEMAM  SEM
CTRL25.0±2.611.3±1.64.7±1.092.2±1.351.6±3.27.9±0.9
pControl20.0±2.611.6±1.05.4±1.092.1±1.247.1±4.78.3±1.1
TS21.7±2.611.4±1.55.5±0.792.7±1.050.5±4.27.9±0.7
3 × EP13.3±3.618.7±2.77.8±0.874.4±1.739.9±2.614.3±1.7
3 × GET (pControl)53.3±7.919.5±3.015.3±2.975.6±2.435.3±4.215.1±1.6
3 × GET (TS)65.8±7.626.7±2.246.3±3.049.5±3.814.9±1.119.3±1.7
IR21.7±4.218.4±1.830.2±2.453.3±3.530.1±2.326.8±2.6
pControl + IR37.5±8.018.7±1.932.3±2.554.5±4.724.5±1.826.4±2.1
TS + IR43.3±8.019.9±1.531.6±2.352.0±2.923.8±1.626.4±2.3
3 × EP + IR25.0±4.831.0±2.051.7±2.659.4±4.028.9±2.329.3±2.1
3 × GET (pControl) + IR65.0±7.638.7±3.158.0±2.846.0±4.818.9±2.045.8±3.0
3 × GET (TS) + IR79.2±4.250.3±2.466.7±1.646.7±4.812.8±1.046.5±2.1

Response of B16F10 melanoma to different treatment modalities

Therapeutic groupDT (days)TGD (days)TFSC
nAM  SEMAM  SEMn%n%
CTRL81.2±0.10.0±0.100--
pControl81.9±0.20.7±0.200--
TS82.2±0.31.0±0.300--
3 × EP83.1±0.32.0±0.300--
3 × GET (pControl)89.4±6.58.2±2.500--
3 × GET (TS)99.5±3.28.6±3.0444375
IR91.8±0.30.7±0.300--
pControl + IR92.5±0.31.3±0.31111100
TS + IR84.0±1.22.8±1.200--
3 × EP+IR94.3±1.33.2±1.322200
3 × GET (pControl) + IR936.0±n/a34.9±n/a889563
3 × GET (TS) + IR832.0±n/a30.8±n/a788457
eISSN:
1581-3207
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Medicine, Clinical Medicine, Radiology, Internal Medicine, Haematology, Oncology