Evaluation of the Impact of Cancer Treatment on the Adoption and Consolidation of Pro-Health Attitudes in the Field of Cancer in Treated Patients with Colon Cancer

Health-promoting lifestyle among Chinese patients with colorectal polyps: a cross-sectional study

This study aims to investigate the level of health-promoting lifestyles and its influencing factors in Chinese patients with colorectal polyps. A total of 169 colorectal polyps patients from three tertiary care hospitals in Nanchong and Deyang, China, were recruited. Data were collected using the Impact of Health-Promoting Lifestyle Profile-II (HPLP-IIR), Colorectal Cancer Knowledge Questionnaire, Colorectal Cancer Health Belief Scale, the Chinese version of the Health Information Literacy Self-Rating Scale, and a demographic questionnaire. Factors influencing health-promoting lifestyles in patients with colorectal polyps were analyzed using multiple linear regression analysis. The mean HPLP-IIR score was 96.02 ± 14.42, indicating a moderate level of health promotion. Multiple linear regression analysis revealed that the total score of health information literacy, colorectal cancer knowledge and health beliefs were significantly associated with the total score of health promotion lifestyle in Chinese patients with colorectal polyps (P < 0.001), explaining 36.1% of the total variance. The health-promoting lifestyle of colorectal polyp patients was at an intermediate level. Health information literacy, colorectal cancer health knowledge, and colorectal cancer health beliefs were identified as key factors influencing their health-promoting lifestyles. Efforts should focus on improving health information literacy, increasing colorectal cancer health knowledge, and promoting positive health beliefs to establish a better health-promoting lifestyle.

Esculentoside H inhibits colon cancer cell migration and growth through suppression of MMP-9 gene expression via NF-kB signaling pathway

A water-soluble saponin, Esculentoside H (EsH), 3-O-(O-β-d-glucopyranosyl-(1→4)-β-d-xylopyranosyl)-28-β-d-glucopyranosylphytolaccagenin has been isolated and purified from the root extract of perennial plant Phytolacca esculenta. EsH is known to be an anticancer compound, having a capacity for TNF-α release. However, the effects of EsH on migration and growth in tumor cells have not yet been reported. In the current study, the suppressive effects of EsH on phorbol 12-myristate 13-acetate (PMA)-induced cell migration were examined in murine colon cancer CT26 cells and human colon cancer HCT116 cells. Interestingly, the transwell assay and wound healing show that EsH suppresses the PMA-induced migration and growth potential of HCT116 and CT26 colon cancer cells, respectively. EsH dose-dependently suppressed matrix metalloproteinases-9 (MMP-9) expression that was upregulated upon PMA treatment in messenger RNA levels and protein secretion. Since the expression of MMP-9 is correlated with nuclear factor-κB (NF-κB) signaling, it has been examined whether EsH inhibits PMA-induced IκB phosphorylation that leads to the suppression of NK-κB nuclear translocation. EsH repressed the phosphorylation level of JNK, but not extracellular signal-regulated kinase and p38 signaling when the cells were treated with PMA. Overall, these results demonstrated that EsH could suppress cancer migration through blockage of the JNK1/2 and NF-κB signaling-mediated MMP-9 expression.

Influence of microRNA‑34a on proliferation, invasion and metastasis of HCT116 cells

The aim of the present study was to investigate the role of microRNA (miR)‑34a expression in the proliferation, invasion and metastasis of colon cancer and its underlying mechanisms. HCT116 cells were cultured in high‑sugar Dulbecco's modified Eagle's medium (DMEM) containing 10% fetal bovine serum and 1000 U/ml penicillin‑streptomycin. Following digestion and resuspension, the cells were used for transfection, expression and western blot analysis. HCT116 cells from miR‑34a transfection, negative control and blank control groups were seeded into a 96‑well plate at a density of 105 cells/ml, and 200 µl complete DMEM was added. The data are presented as the mean ± standard error. A one‑way analysis of variance was performed to compare groups. miR‑34a‑HCT116 cells demonstrated significantly increased expression levels of miR‑34a. The proliferation of HCT116 cells with overexpression of miR‑34a was significantly inhibited to 0.49±0.11 compared with the blank control group (P<0.001). Compared with the blank control and negative control groups, the protein expression levels of B‑cell lymphoma 2 (Bcl‑2) were markedly reduced in the miR‑34a transfected group. Furthermore, the protein expression levels of Bcl‑2‑associated X protein were significantly increased and those of matrix metalloproteinase (MMP)‑2 and MMP‑9 were markedly reduced in the miR‑34a transfected group, MMP‑9 to a greater extent. The present study suggested that overexpression of miR‑34a may inhibit the proliferation, invasion and metastasis of HCT116 cells.