ArticleCancer genomics & proteomics
CTGF/CCN2 Promotes Invasive Growth in Cervical Cancer Spheroids and Is Associated With Metastatic Cervical Cancer Tissue.
Article in Cancer genomics & proteomics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND/
aimMetastatic spread defines the lethality of cervical cancer (CC). Connective tissue growth factor (CTGF/CCN2) regulates cell- extracellular matrix interactions but its role in CC is not well-defined. This study investigates the role of CTGF in driving CC invasive growth and its prevalence in patient tissues. MATERIALS AND
methodsCC spheroids (C33A, HT3) were treated with recombinant human CTGF (rhCTGF) or a function-blocking antibody (IgG CTGF). Invasive growth was assessed via 3D spheroid assay using a Celigo imaging cytometer. Cancer stem cell (CD133, CD44) and epithelial-mesenchymal transition (EMT) markers (E-cadherin, N-cadherin) were analyzed by immunofluorescence. CTGF expression was evaluated using a tissue microarray containing 69 cases in triplicate from pre-invasive, invasive (FIGO I-III), and metastatic cervical lesions, quantified via immunofluorescence scoring.
resultsFunctional blockade of CTGF significantly reduced 3D spheroid invasive growth in C33A and HT3 cells (
conclusionIn 3D models of CC, CTGF appears to regulate an invasive phenotype, presumably by controlling aberrant localization of stemness and EMT markers. Its apparently elevated expression in early-stage cervical carcinomas and metastases, combined with its prognostic value for recurrence-free survival, suggests that CTGF may be involved in triggering the potential for metastasis and could therefore serve as an early prognostic biomarker.
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