Used in research settings to quantify levels of MUC5AC, a gel-forming mucin, in biological samples such as cell culture supernatants, bronchoalveolar lavage fluid, and tissue lysates. The kit supports studies related to respiratory diseases including asthma, chronic obstructive pulmonary disease (COPD), and cystic fibrosis, where MUC5AC overexpression contributes to mucus hypersecretion. It is also applied in investigating inflammatory responses in the airways, evaluating the efficacy of therapeutic agents targeting mucin production, and understanding goblet cell metaplasia in mucosal tissues. Widely utilized in preclinical research and drug development for respiratory and gastrointestinal disorders involving abnormal mucin expression.