{Reference Type}: Journal Article
{Title}: Establishment of growth stimulating gene 2 protein time-resolved fluorescence immunoassay and its application in sepsis.
{Author}: Wang L;Fu B;Xiang Z;Chen X;Chen J;Qin Y;Sheng H;Zhou X;Li Q;Huang B;
{Journal}: J Immunol Methods
{Volume}: 520
{Issue}: 0
{Year}: 2023 09 7
{Factor}: 2.287
{DOI}: 10.1016/j.jim.2023.113534
{Abstract}: This study aimed to establish a highly sensitive time-resolved fluorescence immunoassay of growth stimulating express gene 2 protein (ST2-TRFIA) and evaluate its application value for sepsis.<BR>Two types of ST2 monoclonal specific antibodies against different epitopes of antigen molecule were used as coating and Eu3+-labeled antibodies. The double-antibody sandwich method was used in establishing ST2-TRFIA, and the methodology was evaluated. The established ST2-TRFIA was used in detecting ST2 concentration in the plasma samples of healthy controls and sepsis.<BR>The linear range of ST2-TRFIA was 1.446-500 ng/mL. Plasma ST2 concentrations detected through ST2-TRFIA were consistent with the results of fluorescence quantitative immunochromatography (ρ = 0.946). The plasma ST2 concentrations of patients with sepsis were significantly higher than those of healthy controls (P < 0.01).<BR>This study successfully established a highly sensitive ST2-TRFIA, which was highly comparable to commercially available fluorescent quantitative immunochromatographic kits and can facilitate the timely diagnosis of sepsis.