Dual role of macrophages in the response of C26 colon carcinoma cells to 5-fluorouracil administration

  • Authors:
    • Laura Patras
    • Alina Sesarman
    • Emilia Licarete
    • Lavinia Luca
    • Marius Costel Alupei
    • Elena Rakosy‑Tican
    • Manuela Banciu
  • View Affiliations

  • Published online on: June 13, 2016     https://doi.org/10.3892/ol.2016.4708
  • Pages: 1183-1191
Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Previous studies have demonstrated that tumor‑associated macrophages (TAMs) are pivotal players in tumor progression via modulation of tumor angiogenesis, inflammation, metastasis and oxidative stress, as well as of the response of cancer cells to cytotoxic drugs. Nevertheless, the role of TAMs in the prognosis of colorectal cancer remains controversial. Therefore, the present study aimed to investigate how TAMs mediate the response of C26 colon carcinoma cells to the cytotoxic drug 5‑fluorouracil (5‑FU), upon TAM co‑cultivation with these cancer cells in vitro. In this respect, 5-FU cytotoxicity was assessed in C26 cells in standard culture and in a co‑culture with peritoneal macrophages, the production of NF‑κB was determined by western blot analysis, and the production of angiogenic/inflammatory proteins in each experimental model was evaluated by protein array analysis. To gain further evidence of the effect of TAMs on oxidative stress, malondialdehyde was measured through high‑performance liquid chromatography, and the total nonenzymatic antioxidant levels and the production of nitrites were measured through colorimetric assays. The results demonstrated that TAMs exerted a dual role in the response of C26 cells to 5‑FU administration in the co‑culture model. Thus, on one side, TAMs sensitized C26 cells to 5‑FU administration through inhibition of the production of inflammatory and angiogenic proteins in these cancer cells; however, they also protected cancer cells against 5‑FU‑induced oxidative stress. Collectively, the present findings suggest that the combined administration of 5‑FU with pharmacological agents that prevent TAMs to maintain the physiological range of tumor cell oxidative stress may highly improve the therapeutic potential of this drug.
View Figures
View References

Related Articles

Journal Cover

August-2016
Volume 12 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Patras L, Sesarman A, Licarete E, Luca L, Alupei MC, Rakosy‑Tican E and Banciu M: Dual role of macrophages in the response of C26 colon carcinoma cells to 5-fluorouracil administration. Oncol Lett 12: 1183-1191, 2016
APA
Patras, L., Sesarman, A., Licarete, E., Luca, L., Alupei, M.C., Rakosy‑Tican, E., & Banciu, M. (2016). Dual role of macrophages in the response of C26 colon carcinoma cells to 5-fluorouracil administration. Oncology Letters, 12, 1183-1191. https://doi.org/10.3892/ol.2016.4708
MLA
Patras, L., Sesarman, A., Licarete, E., Luca, L., Alupei, M. C., Rakosy‑Tican, E., Banciu, M."Dual role of macrophages in the response of C26 colon carcinoma cells to 5-fluorouracil administration". Oncology Letters 12.2 (2016): 1183-1191.
Chicago
Patras, L., Sesarman, A., Licarete, E., Luca, L., Alupei, M. C., Rakosy‑Tican, E., Banciu, M."Dual role of macrophages in the response of C26 colon carcinoma cells to 5-fluorouracil administration". Oncology Letters 12, no. 2 (2016): 1183-1191. https://doi.org/10.3892/ol.2016.4708