Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28222111
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 PLoS+One
2017 ; 12
(2
): e0171559
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
A meta-analysis of the abscopal effect in preclinical models: Is the biologically
effective dose a relevant physical trigger?
#MMPMID28222111
Marconi R
; Strolin S
; Bossi G
; Strigari L
PLoS One
2017[]; 12
(2
): e0171559
PMID28222111
show ga
BACKGROUND: Preclinical in vivo studies using small animals are considered
crucial in translational cancer research and clinical implementation of novel
treatments. This is of paramount relevance in radiobiology, especially for any
technological developments permitted to deliver high doses in single or
oligo-fractionated regimens, such as stereotactic ablative radiotherapy (SABR).
In this context, clinical success in cancer treatment needs to be guaranteed,
sparing normal tissue and preventing the potential spread of disease or local
recurrence. In this work we introduce a new dose-response relationship based on
relevant publications concerning preclinical models with regard to delivered
dose, fractionation schedule and occurrence of biological effects on
non-irradiated tissue, abscopal effects. METHODS: We reviewed relevant
publications on murine models and the abscopal effect in radiation cancer
research following PRISMA methodology. In particular, through a log-likelihood
method, we evaluated whether the occurrence of abscopal effects may be related to
the biologically effective dose (BED). To this aim, studies accomplished with
different tumor histotypes were considered in our analysis including breast,
colon, lung, fibrosarcoma, pancreas, melanoma and head and neck cancer. For all
the tumors, the ? / ? ratio was assumed to be 10 Gy, as generally adopted for
neoplastic cells. RESULTS: Our results support the hypothesis that the occurrence
rate of abscopal effects in preclinical models increases with BED. In particular,
the probability of revealing abscopal effects is 50% when a BED of 60 Gy is
generated. CONCLUSION: Our study provides evidence that SABR treatments
associated with high BEDs could be considered an effective strategy in triggering
the abscopal effect, thus shedding light on the promising outcomes revealed in
clinical practice.