prepared lung homogenate supernatants as previously described.19 (link) We converted 1 g of the homogenate suspension to 1 mL and calculated the
protein levels of various cytokines and chemokines in the total lung
homogenates. The levels of interleukin (IL)-4, IL-5, interferon gamma (IFN-γ),
IL-12 (Thermo Fisher Scientific, Inc., Chicago, IL, USA), IL-10, IL-13, IL-33,
macrophage-inflammatory protein 1-apha (MIP-1α), keratinocyte chemoattractant
(KC), monocyte chemoattractant protein-1 (MCP-1), chemokine (C-C motif) ligand
5/regulated and normal T-cell expressed and secreted (CCL5/RANTES),
CCL11/eotaxin (R&D Systems, Minneapolis, MN, USA), and monocyte-chemotactic
protein 3 (MCP-3; PeproTech, Inc., NJ, USA) in the lung homogenate supernatants
were measured using an ELISA kit, according to the manufacturer’s instructions.
Cytokine and chemokine content were expressed as pg in the total lung homogenate
supernatants.