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Cancer-Associated Fibroblast Subgroups Showing Differential Promoting Effect on HNSCC Progression.

ABSTRACT: Background: The critical effect of the tumor microenvironment on cancer progression is well recognized. Recent research suggests that the cancer-promoting properties of the tumor stroma may be attributed to fibroblasts. However, the effect of cancer-associated fibroblast (CAF) on the progression of head and neck squamous cell carcinoma (HNSCC) is not well known. Methods: From the immunohistochemical analysis of head and neck squamous cell carcinoma (HNSCC) tissues, we divided CAF into two groups depending on the presence or absence of a well-demarcated boundary between epithelial cancer cells and the surrounding extracellular matrix (ECM). Primary culture of CAF was performed, followed by co-transplantation with HNSCC cells into mice oral mucosa, and the tumorigenesis was compared. The mRNA expression patterns between these two CAF groups were compared using DNA microarray analysis. Results: CAFs from cancer tissues that showed no demarcation between ECM and epithelial cancer cells (CAF-Promote) tended to stimulate Matrigel invasion of HNSCC cells. Conversely, CAFs from cancer tissues that showed a boundary with epithelial cancer cells (CAF-Delay) caused no remarkable increase in Matrigel invasion. Compared with CAF-P, CAF-D is less effective in promoting FaDu tumorigenicity in the mouse model. In DNA microarray analysis, COL3A1 and COL6A6 showed particularly high expression in the CAF-D group. Conclusions: These cancer stroma-derived collagen proteins might delay the HNSCC progression. These findings are expected to provide vital information for predicting HNSCC prognosis and developing drug targets in the future.

SUBMITTER: Kang SH

PROVIDER: S-EPMC7915931 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Cancer-Associated Fibroblast Subgroups Showing Differential Promoting Effect on HNSCC Progression.

Kang Soo Hyun SH Oh Su Young SY Lee Heon-Jin HJ Kwon Tae-Geon TG Kim Jin-Wook JW Lee Sung-Tak ST Choi So-Young SY Hong Su-Hyung SH

Cancers 20210206 4

<i>Background</i>: The critical effect of the tumor microenvironment on cancer progression is well recognized. Recent research suggests that the cancer-promoting properties of the tumor stroma may be attributed to fibroblasts. However, the effect of cancer-associated fibroblast (CAF) on the progression of head and neck squamous cell carcinoma (HNSCC) is not well known. <i>Methods</i>: From the immunohistochemical analysis of head and neck squamous cell carcinoma (HNSCC) tissues, we divided CAF i ...[more]

PMID: 33562096

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Project description:To study of differential effect on cancer-associated fibroblasts of HNSCC, we have employed microarray expression profiling. The critical effect of the tumor microenvironment to caner progression is well recognized. Recent research suggests that the cancer-promoting properties of the tumor stroma may attributed to fibroblasts. However, little is known about fibroblasts that inhibit cancer progression. From the immunohistochemical analysis of cancer tissues from head and neck squamous cell carcinoma (HNSCC) patients, we divided cancer-associated fibroblast (CAF) into two groups depending on whether the boundary between epithelial cancer cells and the surrounding extracellular matrix (ECM) is clear and smooth or not. Therefore, we tried to evaluate whether there is a difference between these two CAFs in HNSCC progression. CAF was primary cultured, followed by co-culture with HNSCC cell to observe the effect on Matrigel invasion. The mRNA expression patterns between these two CAF groups were compared by DNA microarray analysis. FaDu cell and primary CAF from each group was co-transplanted into the oral mucosa of mice, and the tumorigenesis was compared. The CAF group (CAF-Promote, CAF-P) from cancer tissues which have unclear boundary between ECM and epithelial cancer cells showed a tendency to stimulate in vitro Matrigel invasion of HNSCC cell. On the contrary, the CAF group (CAF-Defense, CAF-D) from cancer tissues, which have clear boundary with epithelial cancer cell caused no remarkable increase of Matrigel invasion. In addition, CAF-D reduced the tumorigenicity of FaDu compared to CAF-P in the in vivo mice model. In DNA microarray analysis, COL3A1, COL6A6, COL25A1, and COL26A1 were particularly highly expressed in CAF-D group. In this study, these collagen proteins derived from cancer stroma were found to have a function of inhibiting the progression of HNSCC. It is expected to provide important information for predicting the prognosis of HNSCC and development of drug target in the future.

Project description:BackgroundBone morphogenetic proteins (BMPs) have been reported to maintain epithelial integrity and to antagonize the transforming growth factor ? (TGF?)-induced epithelial to mesenchymal transition. The expression of soluble BMP antagonists is dysregulated in cancers and interrupts proper BMP signaling in breast cancer.MethodsIn this study, we mined the prognostic role of BMP antagonists GREMLIN 1 (GREM1) in primary breast cancer tissues using in-house and publicly available datasets. We determined which cells express GREM1 RNA using in situ hybridization (ISH) on a breast cancer tissue microarray. The effects of Grem1 on the properties of breast cancer cells were assessed by measuring the mesenchymal/stem cell marker expression and functional cell-based assays for stemness and invasion. The role of Grem1 in breast cancer-associated fibroblast (CAF) activation was measured by analyzing the expression of fibroblast markers, phalloidin staining, and collagen contraction assays. The role of Grem1 in CAF-induced breast cancer cell intravasation and extravasation was studied by utilizing xenograft zebrafish breast cancer (co-) injection models.ResultsExpression analysis of clinical breast cancer datasets revealed that high expression of GREM1 in breast cancer stroma is correlated with a poor prognosis regardless of the molecular subtype. The large majority of human breast cancer cell lines did not express GREM1 in vitro, but breast CAFs did express GREM1 both in vitro and in vivo. Transforming growth factor ? (TGF?) secreted by breast cancer cells, and also inflammatory cytokines, stimulated GREM1 expression in CAFs. Grem1 abrogated bone morphogenetic protein (BMP)/SMAD signaling in breast cancer cells and promoted their mesenchymal phenotype, stemness, and invasion. Moreover, Grem1 production by CAFs strongly promoted the fibrogenic activation of CAFs and promoted breast cancer cell intravasation and extravasation in co-injection xenograft zebrafish models.ConclusionsOur results demonstrated that Grem1 is a pivotal factor in the reciprocal interplay between breast cancer cells and CAFs, which promotes cancer cell invasion. Targeting Grem1 could be beneficial in the treatment of breast cancer patients with high Grem1 expression.

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Cancer-Associated Fibroblast Subgroups Showing Differential Promoting Effect on HNSCC Progression.

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Cancer-Associated Fibroblast Subgroups Showing Differential Promoting Effect on HNSCC Progression.

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