Rat POSTN/OSF-2 (Periostin) ELISA Kit (RTES01024)

Periostin (POSTN, also known as OSF-2) is a secreted extracellular matrix protein that contributes to tissue remodeling, fibrotic responses, and bone homeostasis. This rat-specific quantification kit from Assay Genie allows laboratories to measure endogenous periostin concentrations across multiple experimental contexts.

The immunoassay procedure uses a pre-coated microplate and matched antibody reagents to generate a standard curve, with unknown sample values interpolated from the absorbance readout. Investigators working on collagen deposition, allergic airway inflammation, myocardial remodeling, or tumor-stroma interactions in rat systems frequently track periostin as a biomarker of disease progression or treatment response.

Each kit ships with a microplate strip plate, lyophilized recombinant standards, biotinylated detection antibody, streptavidin-HRP conjugate, wash buffer, substrate solution, and stop reagent sufficient for one full plate run. Standard curves span the working range described in the lot-specific certificate of analysis.

Sample handling guidance: avoid repeated freeze-thaw cycles of serum or plasma specimens, allow reagents to equilibrate before use, and store kit components at the temperatures stated in the manual. For research use only; not intended for diagnostic or clinical decision-making.