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2015 ; 8
(9
): 10887-93
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Pituitary tumor transforming gene PTTG2 induces psoriasis by regulating vimentin
and E-cadherin expression
#MMPMID26617803
Liu XB
; Li F
; Li YQ
; Yang F
Int J Clin Exp Pathol
2015[]; 8
(9
): 10887-93
PMID26617803
show ga
Psoriasis is a common and intractable skin disease affecting the physical and
mental health of patients. This study focused on the roles of pituitary tumor
transforming gene 2 (PTTG2) in psoriasis. Using real-time quantitative PCR and
western blot, the expression patterns of PTTG2 were compared in psoriatic
epidermis cells and normal cells, from both mRNA levels and protein levels.
Knockdown of PTTG2 by siRNA was conducted in HaCaT cells to investigate the
changes in cell viability and migration in vitro. Expression changes of vimentin
and E-cadherin were also detected in the transfected cells. Results showed PTTG2
was significantly overexpressed in the psoriatic epidermis cells (P < 0.05). The
cell viability and migration were inhibited by the knockdown of PTTG2. Besides,
knockdown of PTTG2 resulted in down-regulation of vimentin and up-regulation of
E-cadherin, with significant differences compared to the siRNA control group (P <
0.05). This study indicated the involvement of PTTG2 in mediating epidermis cell
viability and migration and in pathogenesis of psoriasis. PTTG2 might be a
potential therapeutic target for psoriasis through inducing
epithelial-to-mesenchymal transition (EMT) via regulating the expression of
vimentin and E-cadherin.