Used in immunological research to quantify levels of surfactant protein A (SP-A) in mouse lung samples. Helps assess lung inflammation and immune response in respiratory diseases such as asthma, COPD, and pulmonary infections. Commonly applied in preclinical studies to evaluate lung injury, response to therapeutics, and function of the innate immune system in the lungs. Enables researchers to measure changes in SP-A concentration under experimental conditions, supporting studies on lung surfactant metabolism and host defense mechanisms.