Human Cathepsin E (CTSE) ELISA Kit

Researchers investigating gastric mucosal biology, antigen presentation pathways, or tumor-associated protease activity can quantify human Cathepsin E (CTSE) using this quantitative immunoassay kit from Assay Genie.

Cathepsin E is an aspartic endopeptidase distinct from related lysosomal cathepsins, expressed predominantly in gastric epithelial cells, dendritic cells, lymphocytes, and certain cancer cell lines. It contributes to MHC class II-mediated antigen processing and has been studied as a tissue-level marker in gastric adenocarcinoma, pancreatic ductal carcinoma, and Helicobacter pylori-associated gastritis research.

The kit employs a colorimetric readout on a microplate, delivering measurable absorbance values that correlate with CTSE concentration in prepared samples. Each package contains reagents sufficient for 96 assays, supporting both standard curve generation and replicate testing of unknown specimens across a typical experimental run.

Working protocols call for small sample volumes, with all reagents handled according to the package insert to preserve antibody binding and enzymatic reactivity throughout the product shelf life. Researchers are advised to avoid repeated freeze-thaw cycles of reconstituted components and to protect light-sensitive solutions from exposure during incubation.

Intended for research use only, this Assay Genie kit supports a broad spectrum of in vitro investigations, from basic mechanistic studies of aspartic proteases to translational work exploring CTSE as a candidate biomarker in oncology and immunology.