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Lung cells support osteosarcoma cell migration and survival

Yu, Shibing and Fourman, Mitchell Stephen and Mahjoub, Adel and Mandell, Jonathan Brendan and Crasto, Jared Anthony and Greco, Nicholas Giuseppe and Weiss, Kurt Richard (2017) Lung cells support osteosarcoma cell migration and survival. BMC Cancer, 17 (1). ISSN 1471-2407

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Osteosarcoma (OS) is the most common primary bone tumor, with a propensity to metastasize to the lungs. Five-year survival for metastatic OS is below 30%, and has not improved for several decades despite the introduction of multi-agent chemotherapy. Understanding OS cell migration to the lungs requires an evaluation of the lung microenvironment. Here we utilized an in vitro lung cell and OS cell co-culture model to explore the interactions between OS and lung cells, hypothesizing that lung cells would promote OS cell migration and survival. The impact of a novel anti-OS chemotherapy on OS migration and survival in the lung microenvironment was also examined.
Three human OS cell lines (SJSA-1, Saos-2, U-2) and two human lung cell lines (HULEC-5a, MRC-5) were cultured according to American Type Culture Collection recommendations. Human lung cell lines were cultured in growth medium for 72 h to create conditioned media. OS proliferation was evaluated in lung co-culture and conditioned media microenvironment, with a murine fibroblast cell line (NIH-3 T3) in fresh growth medium as controls. Migration and invasion were measured using a real-time cell analysis system. Real-time PCR was utilized to probe for Aldehyde Dehydrogenase (ALDH1) expression. Osteosarcoma cells were also transduced with a lentivirus encoding for GFP to permit morphologic analysis with fluorescence microscopy. The anti-OS efficacy of Disulfiram, an ALDH-inhibitor previously shown to inhibit OS cell proliferation and metastasis in vitro, was evaluated in each microenvironment.
Lung-cell conditioned medium promoted osteosarcoma cell migration, with a significantly higher attractive effect on all three osteosarcoma cell lines compared to basic growth medium, 10% serum containing medium, and NIH-3 T3 conditioned medium (p <0.05). Lung cell conditioned medium induced cell morphologic changes, as demonstrated with GFP-labeled cells. OS cells cultured in lung cell conditioned medium had increased alkaline phosphatase staining.
Lung endothelial HULEC-5a cells are attractants for OS cell migration, proliferation, and survival. The SJSA-1 osteosarcoma cell line demonstrated greater metastatic potential than Saos-2 and U-2 cells. ALDH appears to be involved in the interaction between lung and OS cells, and ALP may be a valuable biomarker for monitoring functional OS changes during metastasis.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Yu, Shibing
Fourman, Mitchell
Mahjoub, Adel
Mandell, Jonathan
Crasto, Jared
Greco, Nicholas Giuseppe
Weiss, Kurt
Date: 25 January 2017
Date Type: Publication
Journal or Publication Title: BMC Cancer
Volume: 17
Number: 1
Publisher: BMC (part of Springer Nature)
DOI or Unique Handle: 10.1186/s12885-017-3047-5
Schools and Programs: School of Medicine > Orthopaedic Surgery
Refereed: Yes
ISSN: 1471-2407
Official URL:
Article Type: Research Article
Date Deposited: 13 May 2020 16:39
Last Modified: 13 May 2020 16:39


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