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WNT1-inducible signaling pathway protein-1 contributes to tumor progression and treatment failure in oral squamous cell carcinoma.

ABSTRACT: WNT1-inducible-signaling pathway protein-1 (WISP-1) belongs to the family of cysteine rich 61/connective tissue growth factor/nephroblastoma overexpressed matricellular proteins, which are involved in various biological processes, including cell adhesion, proliferation, differentiation, angiogenesis and carcinogenesis. In the present study, the expression of WISP-1 was investigated, and its association with clinicopathological factors and prognosis in patients with oral squamous cell carcinoma (OSCC) was evaluated. Additionally, the role of WISP-1 in invasion and apoptosis of human OSCC cells was evaluated. Immunoreactivity of WISP-1 was increased in OSCC tissue compared with adjacent normal tissue samples. High expression of WISP-1 protein was observed in 24/84 (28.57%) OSCC specimens. Additionally, high WISP-1 expression was significantly associated with treatment failure (P=0.042). The 5-year overall survival rate was 33% in patients with high WISP1 expression, and 66% in patients with low WISP-1 expression. WISP-1 expression in the human OSCC SCC-1483 cell line was observed. Furthermore, WISP-1 knockdown using small interfering (si)RNA significantly reduced cell invasion and induced apoptosis compared with control siRNA-transfected cells. These findings suggested that WISP-1 is associated with tumor progression and poor prognosis by increasing tumor cell invasion and inhibiting cell apoptosis in human OSCC.

SUBMITTER: Jung EK

PROVIDER: S-EPMC5529834 | biostudies-other | 2017 Aug

REPOSITORIES: biostudies-other

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Project description:The stromal cells in the tumor microenvironment (TME) can influence the progression of multiple types of cancer; however, data on oral squamous cell carcinoma (OSCC) are limited. In the present study, the effects of verrucous squamous cell carcinoma‑associated stromal cells (VSCC‑SCs), squamous cell carcinoma‑associated stromal cells (SCC‑SCs) and human dermal fibroblasts (HDFs) on the tumor nest formation, proliferation, invasion and migration of HSC‑3 cells were examined in vitro using Giemsa staining, MTS, and Transwell (invasion and migration) assays, respectively. The results revealed that both the VSCC‑SCs and SCC‑SCs inhibited the tumor nest formation, and promoted the proliferation, invasion and migration of OSCC cells in vitro. Furthermore, the effects of VSCC‑SCs, SCC‑SCs and HDFs on the differentiation, proliferation, invasion and migration of OSCC cells in vivo were evaluated by hematoxylin and eosin staining, tartrate‑resistant acid phosphatase staining, immunohistochemistry and double‑fluorescent immunohistochemical staining, respectively. The results demonstrated that the VSCC‑SCs promoted the differentiation, proliferation, invasion and migration of OSCC cells, while the SCC‑SCs inhibited the differentiation, and promoted the proliferation, invasion and migration of OSCC cells in vivo. Finally, microarray data were used to predict genes in VSCC‑SCs and SCC‑SCs that may influence the progression of OSCC, and those with potential to influence the differential effects of VSCC‑SCs and SCC‑SCs on the differentiation of OSCC. It was found that C‑X‑C motif chemokine ligand (CXCL)8, mitogen‑activated protein kinase 3 (MAPK3), phosphatidylinositol‑4,5‑bisphosphate 3‑kinase catalytic subunit alpha (PIK3CA), C-X-C motif chemokine ligand 1 (CXCL1) and C‑C motif chemokine ligand 2 (CCL2) may be involved in the crosstalk between VSCC‑SCs, SCC‑SCs and OSCC cells, which regulates the progression of OSCC. Intercellular adhesion molecule 1 (ICAM1), interleukin (IL)1B, Fos proto‑oncogene, AP‑1 transcription factor subunit (FOS), bone morphogenetic protein 4 (BMP4), insulin (INS) and nerve growth factor (NGF) may be responsible for the differential effects of VSCC‑SCs and SCC‑SCs on the differentiation of OSCC. On the whole, the present study demonstrates that both VSCC‑SCs and SCC‑SCs may promote the progression of OSCC, and SCC‑SCs were found to exert a more prominent promoting effect; this may represent a potential regulatory mechanism for the progression of OSCC.

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WNT1-inducible signaling pathway protein-1 contributes to tumor progression and treatment failure in oral squamous cell carcinoma.

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