Listeria monocytogenes is a psychrophilic bacterium, which causes widespread zoonosis in the natural environment, and mainly affects goat, sheep, and cattle herds. Recently, we predicted that it can be transmitted through food. It causes listeriosis, a severe infectious disease, which occurs with food contaminated with the pathogenic bacterium. Anti-inflammatory factors are important to treat the dangers of chronic inflammation associated with chronic diseases. Natural foodstuffs have made and are continuing to make vital contributions to the search for new antilisterial agents. The use of natural products in association with silver nanoparticles has drawn attention because of its easy, nonpathogenic, eco-friendly, and economical protocol. Hence, we aimed to biosynthesize silver nanoparticles (Ag-NPs) using Garcinia mangostana peel extract, which was found to be a good source for the synthesis of silver nanoparticles, their formation being confirmed by color change and stability in solution, and investigated the antilisterial activity of these nanoparticles in a murine model of L. monocytogenes infection. A total of 28 mice were divided into four groups—healthy control, infected, infected mice treated with green Ag-NPs biosynthesized with G. mangostana (5 mg/mL), and infected mice pretreated with Ag-NPs. From our results, oral treatment with Ag-NPs biosynthesized with G. mangostana peel extract resulted in a significant reduction in malondialdehyde (MDA), enhanced antioxidant enzyme activities, and increased the levels of the antiapoptotic protein, compared with the untreated mice. These results indicate that G. mangostana may provide therapeutic value against L. monocytogenes-induced oxidative stress and histopathological alterations, and that these effects may be related to antiapoptotic and antioxidant activities.

Breast cancer is the greatest common malignancy in females. This syndrome represents a serious public health problem that needs additional study to define its prediction and specific treatment. MCF-7 is a usually used breast cancer cell line that has been spread for many years by multiple groups. It shows to be a suitable model cell line for breast cancer studies worldwide, including those concerning anticancer. Anticancer and anti-inflammatory influences are important to treat the threats of chronic inflammation related with chronic diseases. Natural products have made and are remaining to make vital influences to the search for new anticancer agents. The use of natural foodstuffs in relationship with green nanoparticles has drawn attention because of its easy and eco-friendly protocol. Therefore, we aimed to investigate the antiproliferative activity of silver nanoparticles biosynthesized by mangosteen peel extract (MPE) on human breast cancer cell line (MCF-7) using [3-(4, 5-dimethylthiazolyl)-2, 5-diphenyl-tetrazolium bromide (MTT) method. In the present study serial concentrations (5, 10, 15, 50, 70, µg/mL) of cells biosynthesized silver nanoparticles by (MPE) was tested against MCF-7 cell lines showed a cytotoxic effects, morphological degeneration, damaging and has more effectiveness against breast cancer cells. The results showed a substantial a high reducing power, a sensible antiproliferative role and antioxidant activity. The results showed that silver nanoparticles biosynthesized by mangosteen peel extract (MPE) can be regarded as a suitable candidate for designing anticancer pharmaceutical preparations.