Cytokine Release
Inflammation is a key part of the aging process in vivo, and is triggered by a range of intrinsic and extrinsic stimuli.
In vitro, the inflammatory response can be measured following exposure to UV, or alternatively following challenge with lipopolysaccharide (LPS), a key component of bacterial cell walls.
Following challenge, the release of interleukins such as IL-1, IL-6, or IL-8 can be quantified by ELISA.