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2752354 
Journal Article 
The antimetastatic effect of macrophages restored by indomethacin: concomitant tumor immunity model 
Jukić, MK; Luetić, AT; Skudar-Lukinović, V; Andreis, I 
2010 
Yes 
Collegium Antropologicum
ISSN: 0350-6134 
34 
3 
899-904 
English 
20977080 
The role of macrophages acting as immunologic antitumor effectors and promoters of tumor growth are poorly understood as yet. We investigated the role of macrophage in model of concomitant immunity (CI), a phenomenon of secondary tumor rejection during the primary tumor growth. It has been shown that the period of CI weakening can coincide with appearance of tumor metastases. We used mammary carcinoma (MC) artificial lung metastases to evaluate the influence of macrophages from various period of CI on the development of metastases in mice. Our results indicated that macrophages are responsible for the late period of CI weakening and suppression. To investigate weather prostaglandins can mediate suppressive effect of macrophages we used experiments with indomethacin and we found that inhibition of prostaglandin E2 synthesis by indomethacin restored antimetastatic effect of concomitant immune macrophages.