Details

Autor(en) / Beteiligte

• Armaiz-Pena, Guillermo N
• Gonzalez-Villasana, Vianey
• Nagaraja, Archana S
• Rodriguez-Aguayo, Cristian
• Sadaoui, Nouara C
• Stone, Rebecca L
• Matsuo, Koji
• Dalton, Heather J
• Previs, Rebecca A
• Jennings, Nicholas B
• Dorniak, Piotr
• Hansen, Jean M
• Arevalo, Jesusa M G
• Cole, Steve W
• Lutgendorf, Susan K
• Sood, Anil K
• Lopez-Berestein, Gabriel

Titel

Adrenergic regulation of monocyte chemotactic protein 1 leads to enhanced macrophage recruitment and ovarian carcinoma growth

Ist Teil von

• Oncotarget, 2015-02, Vol.6 (6), p.4266-4273

Ort / Verlag

United States: Impact Journals LLC

Erscheinungsjahr

2015

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Increased adrenergic signaling facilitates tumor progression, but the underlying mechanisms remain poorly understood. We examined factors responsible for stress-mediated effects on monocyte/macrophage recruitment into the tumor microenvironment, and the resultant effects on tumor growth. In vitro, MCP1 was significantly increased after catecholamine exposure, which was mediated by cAMP and PKA. Tumor samples from mice subjected to daily restraint stress had elevated MCP1 gene and protein levels, increased CD14+ cells, and increased infiltration of CD68+ cells. hMCP1 siRNA-DOPC nanoparticles significantly abrogated daily restraint stress-induced tumor growth and inhibited infiltration of CD68+ and F4/80+ cells. In ovarian cancer patients, elevated peripheral blood monocytes and tumoral macrophages were associated with worse overall survival. Collectively, we demonstrate that increased adrenergic signaling is associated with macrophage infiltration and mediated by tumor cell-derived MCP1 production.