Three-dimensional (3D) culture of bone-derived human 786-O renal cell carcinoma retains relevant clinical characteristics of bone metastases. Issue 1 (28th August 2015)

• Record Type: Journal Article
• Authors: Pan, Tianhong; Fong, Eliza L.S.; Martinez, Mariane; Harrington, Daniel A.; Lin, Sue-Hwa; Farach-Carson, Mary C.; Satcher, Robert L.
• Is Part Of: Cancer letters. Volume 365:Issue 1(2015)
• Page Start: 89
• Page End: 95
• Publication Date: 2015-08-28
• Subjects: Bone metastasis -- Hyaluronic acid -- Hydrogel -- Renal cell carcinoma -- Three dimensional culture; Cancer -- Periodicals; Neoplasms -- Periodicals; Cancer -- Périodiques; Electronic journals; 616.994
• DOI: 10.1016/j.canlet.2015.05.019
• Languages: English
• ISSNs: 0304-3835

Abstract

Highlights: Bone-derived 786-O RCC cells in 3D culture system grow as spheroids that proliferate less compared to 2D. 3D (versus 2D) culture results in a phenotype that more closely mimics the in vivo characteristics of RCC bone metastasis. The 3D model of RCC bone metastases enables more accurate studies of RCC bone metastasis in vitro . Abstract: Bone metastases from renal cell carcinoma (RCC) are typically lytic, destructive, and resistant to treatment regimens. Current in vitro models for studying metastasis introduce artifacts that limit their usefulness. Many features of tumors growing in bone are lost when human RCC cells are cultured in two-dimensional (2D) plastic substrata. In this study, we established that RCC spheroids, consisting of aggregates of cells, can be grown in a three-dimensional (3D) hyaluronate hydrogel-based culture system. The bone-derived human 786-O RCC subline proliferated and survived long term in these hydrogels. Additionally, RCC spheroids in 3D hydrogels demonstrated lower proliferation rates than their counterparts grown in 2D . Overall, gene expression patterns of RCC spheroids in 3D more closely mimicked those observed in vivo than did those of cells grown in 2D. Of particular importance, selected adhesion molecules, angiogenesis factors, and osteolytic factors that have been shown to be involved in RCC bone metastasis were found to be expressed at higher levels in 3D than in 2D cultures. We propose that the 3D culture system provides an improved platform for RCC bone metastasis studies compared with 2D systems.