Claudin-15 protein detection method and related product and application thereof

The invention discloses a Claudin-15 protein detection method as well as a related product and application thereof, and relates to the field of biology. The invention provides an extraction liquid which comprises cathepsin S or granzyme M. By adopting the extraction liquid, Claudin-15 protein can be effectively extracted from an excrement sample and dissolved in excrement supernate, so that target protein Claudin-15 is detected from the excrement sample, and non-invasive effective detection of the Claudin-15 protein is realized. 本发明公开了一种Claudin-15蛋白的检测方法及其相关产品和应用，涉及生物领域。本发明提供了一种萃取液，包括组织蛋白酶S或颗粒酶M，采用该萃取液能够从粪便样本中有效提取Claudin-15蛋白，使其溶解在粪便上清液中，从而实现从粪便样本中检测目标蛋白Claudin-15，实现Claudin-15蛋白的无侵入性的有效检测。