Tumor-Associated Macrophages Promote Invasion while Retaining Fc-Dependent Anti-Tumor Function

Tumor-associated macrophages promote invasion while retaining Fc-dependent anti-tumor function.

Tumor-associated macrophages (TAMs) have been shown to promote tumor progression, and increased TAM infiltration often correlates with poor prognosis. However, questions remain regarding the phenotype of macrophages within the tumor and their role in mAb-dependent cytotoxicity. This study demonstrates that whereas TAMs have protumor properties, they maintain Fc-dependent anti-tumor function. CD...

Anti-Tumor Function Invasion while Retaining Fc-Dependent Tumor-Associated Macrophages Promote

A Novel Copper Chelate Modulates Tumor Associated Macrophages to Promote Anti-Tumor Response of T Cells

BACKGROUND At the early stages of carcinogenesis, the induction of tumor specific T cell mediated immunity seems to block the tumor growth and give protective anti-tumor immune response. However, tumor associated macrophages (TAMs) might play an immunosuppressive role and subvert this anti tumor immunity leading to tumor progression and metastasis. METHODOLOGY/PRINCIPAL FINDINGS The Cu (II) c...

P157: Periostin Recruits Tumor Associated Macrophages in Glioblastoma Multiform

Glioblastoma multiform (GBM) is the most common and lethal type of primary brain tumors with high rates of morbidity and mortality. Treatment options are limited and ineffective in most of the cases. Epidemiological studies have shown a link between inflammation and glioma genesis.  In addition, at the molecular level, pro-inflammatory cytokines released from activated microglia can increa...

Iron Induces Anti-tumor Activity in Tumor-Associated Macrophages

Tumor-associated macrophages (TAMs) frequently help to sustain tumor growth and mediate immune suppression in the tumor microenvironment (TME). Here, we identified a subset of iron-loaded, pro-inflammatory TAMs localized in hemorrhagic areas of the TME. The occurrence of iron-loaded TAMs (iTAMs) correlated with reduced tumor size in patients with non-small cell lung cancer. Ex vivo experiments ...