Cytotoxic effect of Cotinus coggygria extract on Hep3B cancer cell line

New Evidence for Cotinus coggygria Scop. Extracts Application in Gastrointestinal Ailments

BACKGROUND/OBJECTIVES

Cotinus coggygria Scop. is traditionally used for treatment of various gastrointestinal ailments. In this study, we investigated the phytochemical profile and biological activities of leaves, bark and flowers extracts of C. coggygria. Methods: Phytochemical analysis was performed using HPLC. The antimicrobial activity of water and methanolic extracts of C. coggygria leaves, bark and flowers towards various oral fungal and bacterial strains of clinical origin was tested by use of a microdilution assay. Additionally, their cytotoxic activity was determined against different gastrointestinal carcinoma cell lines (CAL27, FaDu, SW480, HCT116 and MRC-5) in concentrations ranging from 3.125 to 400 µg/mL for 48 and 72 h.

RESULTS

The presence of numerous flavonoid and phenolic compounds such as sulfuretin, gallic acid, rutin, hyperoside, and isoquercitrine was detected. Micrococcus luteus, Streptococcus parasanguinis, and Candida tropicalis were the most sensitive microbiological species, with MICs of 0.12 mg/mL for the most effective extracts. Additionally, the cytotoxic activity of the samples against different gastrointestinal carcinoma cell lines (CAL27, FaDu, SW480, HCT116, and MRC-5) was determined in concentrations ranging from 3.125 to 400 µg/mL. Among the tested samples, the methanolic leaf extract exhibited the highest cytotoxic capacity, and the possible mechanism could be related to its inhibitory effect on the release of proinflammatory cytokine in CD4+ cells.

CONCLUSIONS

The traditional use of C. coggygria for gastrointestinal diseases may be substantiated by its ability to inhibit the growth of harmful microorganisms and its promising cytotoxic properties. The methanolic leaf and flower extracts show significant potential for future clinical applications, and further studies are warranted to explore their mechanisms and applications in medical treatments.

An Overview of In Vitro Models of Alcohol-Related Hepatocellular Carcinoma

BACKGROUND

Chronic and excessive alcohol consumption is the leading cause of death due to chronic liver disease. Alcohol-related liver disease (ALD) encompasses a broad spectrum of clinical and pathological features, ranging from asymptomatic and reversible pathologies to hepatocellular carcinoma (HCC), a highly prevalent and deadly liver cancer. Indeed, alcohol consumption is one of the main worldwide etiologies of HCC. However, the impact of alcohol consumption on HCC pathophysiology and the associated mechanisms remains unclear. Thus, in vitro alcohol-related HCC models are essential for addressing this issue and for assessing new molecular markers of this disease. In this review, we discuss the current in vitro models of alcohol-related HCC. Our global overview demonstrates the lack of uniformity regarding HCC cell lines, alcohol concentration, and duration of alcohol exposure among existing models. Despite efforts to model alcohol exposure effectively that demonstrate enhancement of cancer cell transformation markers and HCC aggressiveness following, respectively, short-term and long-term alcohol exposure, current in vitro models possess numerous limitations.

AIM

This review highlights future challenges in the development of more integrated and representative models of the complex pathophysiology of alcohol-related HCC.

Effects of natural waste on in vitro oxidative DNA damage

In this study, the effects of natural waste products such as extracts from C. coggygria leaves and Punica granatum L. peels were investigated against oxidative DNA damage induced by Fenton reaction. 8-OH-2'dG as a general marker of DNA damage on thymus DNA, and the bioactive compounds of extracts were measured by LC-MS/MS. Our results had shown that ethanol extracts of C. coggygria leaf and Punica granatum L. peel had a protective effect on oxidative damaged DNA. It was determined that the bioactive compounds of C. coggygria leaves (gallic acid, protocatechuic acid, myricetin, syringic acid and ethyl gallate as a major compounds) and Punica granatum L. peel (ellagic acid, abscisic acid, ethyl gallate, phlorizin, gallic acid, myricetin as major compounds) may have an important role in the protective effect against oxidative DNA damage. Therefore, Cotinus coggygria leaves and Punica granatum L. peel may have potential use in medicine or cosmetic fields.