title: Cytokines in osteoblast-conditioned medium promote the migration of breast cancer cells.
abstract: Bone is one of the most common metastatic sites for breast cancer. In this study, we observed a promoting effect of osteoblast-conditioned medium (OCM) on the migration of MCF-7, a noninvasive cell line of breast cancer cells. Cytokine antibody array was used to compare the cytokines of OCM with the conditioned medium of non-differentiated osteoblast cells, which consequently revealed factors related to migration, such as IL8, IL6, CSF2 (G-CSF), CSF3 (GM-CSF), and TNFRSF11B (osteoprotegerin). The expression of genes related to migration was also estimated with a PCR array, which showed that 9 genes were upregulated and 26 genes downregulated. Moreover, activated p38, ERK, and AKT pathways were found in the OCM treatment group. This finding indicated the migration ability of breast cancer cells, which move toward the bone depending on the presence of specific cytokines in its surrounding microenvironment.
authors.affiliation: Guangdong Provincial Key Laboratory of Bioengineering Medicine, Guangzhou, 510632, China, tchenxj@jnu.edu.cn.
authors.forename: Xiaojia
authors.initials: X
authors.lastname: Chen
authors.forename: Jia
authors.initials: J
authors.lastname: Lu
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Ji
authors.forename: An
authors.initials: A
authors.lastname: Hong
authors.forename: Qiuling
authors.initials: Q
authors.lastname: Xie
mesh_terms: D001943:Breast Neoplasms / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000187:drug effects*; D017077:Culture Media, Conditioned; D016207:Cytokines / Q000235:genetics / Q000378:metabolism* / Q000494:pharmacology; D005260:Female; D006801:Humans; D061986:MCF-7 Cells; D010006:Osteoblasts / Q000378:metabolism*; D012333:RNA, Messenger / Q000235:genetics; D015398:Signal Transduction / Q000187:drug effects
chemical_list: D017077:Culture Media, Conditioned; D016207:Cytokines; D012333:RNA, Messenger
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