Effect of Combination of Soybean and Phaleria macrocarpa Ethanol Extract on IL6, TNFα, VEGF and Fibroblasts in Mice Exposed to UVB

Abstract

UV exposure causes inflammation and the generation of reactive oxygen species, both of which contribute to skin aging. The purpose of this research was to determine how a combination of Phaleria macrocarpa extract and soybean extract affected the number of fibroblasts, VEGF, IL-6, and TNF alpha expression, and blood levels of IL-6 and TNF alpha in UV-B-exposed mice. In this study, mice were placed into four groups: one control group, three treatment groups, and a combination of Phaleria macrocarpa:soybeans at a 1:1 ratio (com group). The mice were euthanized on days 5 and 21 for histological preparations and then examined under a light microscope. Using an Olympus C-21 microscope with an Optilab Advances camera at 1000x magnification, the fibroblast was studied by counting the number of fibroblast cells per field of view. The immunohistochemical approach was performed to analyze the expression of VEGF, IL-6, and TNF- in skin tissue. The ELISA technique was used to quantify the levels of IL-6 and TNF-alpha. SPSS ver 21 was used to analyze the data. On days 5 and 21, the number of fibroblasts and expression of VEGF, IL-6, and TNF alpha were significantly higher in the combination group than in the control, Phaleria macrocarpa, and soybean treatment groups. However, there was no significant change in IL-6 and TNF alpha levels across groups on days 5 and 21 (p > 0.05). Finally, a 1:1 mixture of Phaleria macrocarpa and soybeans reduced the number of fibroblasts and the production of VEGF, IL-6, and TNF alpha on days 5 and 21, but not in serum levels. Key words: Inflammation, UV B radiation, Skin wound