Sammanfattning

Aberrant expression of miRNAs, cytokines and chemokines are involved in pathogenesis of colon cancer. However, the expression of p53 mediated miRNAs, cyto- and chemokines after radiation and SN38 treatment in colon cancer remains elusive. Here, human colon cancer cells, HCT116 with wild-type, heterozygous and a functionally null p53, were treated by radiation and SN38. The expression of 384 miRNAs was determined by using the TaqMan (R) miRNA array, and the expression of cyto- and chemokines was analyzed by Meso-Scale-Discovery instrument. Up- or down-regulations of miRNAs after radiation and SN38 treatments were largely dependent on p53 status of the cells. Cytokines, IL-6, TNF-alpha, IL-1 beta, Il-4, IL-10, VEGF, and chemokines, IL-8, MIP-1 alpha were increased, and IFN-gamma expression was decreased after radiation, whereas, IL-6, IFN-gamma, TNF-alpha, IL-1 beta, Il-4, IL-10, IL-8 were decreased, and VEGF and MIP-1 alpha were increased after SN38 treatment. Bioinformatic analysis pointed out that the highly up-regulated miRNAs, let-7f-5p, miR-455-3p, miR-98, miR-155-5p and the down-regulated miRNAs, miR-1, miR-127-5p, miR-142-5p, miR-202-5p were associated with colon cancer pathways and correlated with cyto- or chemokine expression. These miRNAs have the potential for use in colon cancer therapy as they are related to p53, pro- or anti-inflammatory cyto- or chemokines after the radiation and SN38 treatment.

Nyckelord

colon cancer cells; p53; miRNAs; cytokines; chemokines

Publicerad i

Oncotarget
2015, Volym: 6, nummer: 42, sidor: 44758-44780

UKÄ forskningsämne

Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)


Publikationens identifierare

DOI: https://doi.org/10.18632/oncotarget.5815

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/86109