Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 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\29554273
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Carcinogenesis
2018 ; 39
(7
): 955-967
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The transformics assay: first steps for the development of an integrated approach
to investigate the malignant cell transformation in vitro
#MMPMID29554273
Mascolo MG
; Perdichizzi S
; Vaccari M
; Rotondo F
; Zanzi C
; Grilli S
; Paparella M
; Jacobs MN
; Colacci A
Carcinogenesis
2018[Jul]; 39
(7
): 955-967
PMID29554273
show ga
The development of alternative methods to animal testing is a priority in the
context of regulatory toxicology. Carcinogenesis is a field where the demand for
alternative methods is particularly high. The standard rodent carcinogenicity
bioassay requires a large use of animals, high costs, prolonged duration and
shows several limitations, which can affect the comprehension of the human
relevance of animal carcinogenesis. The cell transformation assay (CTA) has long
been debated as a possible in vitro test to study carcinogenesis. This assay
provides an easily detectable endpoint of oncotransformation, which can be used
to anchor the exposure to the acquisition of the malignant phenotype. However,
the current protocols do not provide information on either molecular key events
supporting the carcinogenesis process, nor the mechanism of action of the test
chemicals. In order to improve the use of this assay in the integrated testing
strategy for carcinogenesis, we developed the transformics method, which combines
the CTA and transcriptomics, to highlight the molecular steps leading to in vitro
malignant transformation. We studied 3-methylcholanthrene (3-MCA), a genotoxic
chemical able to induce in vitro cell transformation, at both transforming and
subtransforming concentrations in BALB/c 3T3 cells and evaluated the gene
modulation at critical steps of the experimental protocol. The results gave
evidence for the potential key role of the immune system and the possible
involvement of the aryl hydrocarbon receptor (AhR) pathway as the initial steps
of the in vitro transformation process induced by 3-MCA, suggesting that the
initiating events are related to non-genotoxic mechanisms.