DEAD-Box Helicase 4 (Ddx4)+ Stem Cells Sustain Tumor Progression in Non-Serous Ovarian Cancers.

Stella D'Oronzo; Erica Silvestris; Domenica Lovero; Paola Cafforio; Loren Duda; Gennaro Cormio; Angelo Paradiso; Raffaele Palmirotta; Franco Silvestris

doi:10.3390/ijms21176096

DEAD-Box Helicase 4 (Ddx4)+ Stem Cells Sustain Tumor Progression in Non-Serous Ovarian Cancers.

Stella D'Oronzo, Erica Silvestris, Domenica Lovero, Paola Cafforio, Loren Duda, Gennaro Cormio, Angelo Paradiso, Raffaele Palmirotta, Franco Silvestris

Research output: Contribution to journal › Article › peer-review

Abstract

DEAD-Box Helicase 4 (Ddx4)+ ovarian stem cells are able to differentiate into several cell types under appropriate stimuli. Ddx4 expression has been correlated with poor prognosis of serous ovarian cancer (OC), while the potential role of Ddx4+ cells in non-serous epithelial OC (NS-EOC) is almost unexplored. The aim of this study was to demonstrate the presence of Ddx4+ cells in NS-EOC and investigate the effect of follicle-stimulating hormone (FSH) on this population. Increased Ddx4 expression was demonstrated in samples from patients with advanced NS-EOC, compared to those with early-stage disease. Under FSH stimulation, OC-derived Ddx4+ cells differentiated into mesenchymal-like (ML) cells, able to deregulate genes involved in cell migration, invasiveness, stemness and chemoresistance in A2780 OC cells. This effect was primarily induced by ML-cells deriving from advanced NS-EOC, suggesting that a tumor-conditioned germ cell niche inhabits its microenvironment and is able to modulate, in a paracrine manner, tumor cell behavior through transcriptome modulation.

Original language	English
Article number	E6096
Journal	International Journal of Molecular Sciences
Volume	21
Issue number	17
DOIs	https://doi.org/10.3390/ijms21176096
Publication status	Published - Aug 24 2020

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DEAD-Box Helicase 4 (Ddx4)+ Stem Cells Sustain Tumor Progression in Non-Serous Ovarian Cancers. / D'Oronzo, Stella; Silvestris, Erica; Lovero, Domenica; Cafforio, Paola; Duda, Loren; Cormio, Gennaro; Paradiso, Angelo; Palmirotta, Raffaele; Silvestris, Franco.

In: International Journal of Molecular Sciences, Vol. 21, No. 17, E6096, 24.08.2020.

Research output: Contribution to journal › Article › peer-review

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title = "DEAD-Box Helicase 4 (Ddx4)+ Stem Cells Sustain Tumor Progression in Non-Serous Ovarian Cancers.",

abstract = "DEAD-Box Helicase 4 (Ddx4)+ ovarian stem cells are able to differentiate into several cell types under appropriate stimuli. Ddx4 expression has been correlated with poor prognosis of serous ovarian cancer (OC), while the potential role of Ddx4+ cells in non-serous epithelial OC (NS-EOC) is almost unexplored. The aim of this study was to demonstrate the presence of Ddx4+ cells in NS-EOC and investigate the effect of follicle-stimulating hormone (FSH) on this population. Increased Ddx4 expression was demonstrated in samples from patients with advanced NS-EOC, compared to those with early-stage disease. Under FSH stimulation, OC-derived Ddx4+ cells differentiated into mesenchymal-like (ML) cells, able to deregulate genes involved in cell migration, invasiveness, stemness and chemoresistance in A2780 OC cells. This effect was primarily induced by ML-cells deriving from advanced NS-EOC, suggesting that a tumor-conditioned germ cell niche inhabits its microenvironment and is able to modulate, in a paracrine manner, tumor cell behavior through transcriptome modulation.",

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