Anti-Kallikrein 10 antibody - Kallikrein loop (ab28300)

Relevance

Kallikrein 10, also known as normal epithelial cell specific-1 (NES1) and protease serine-like 1 (PRSSL1), is a trypsin-like serine proteinase. Originally described from a subtractive library looking for genes that were down-regulated in breast cancer, kallikrein 10 was thought to be epithelial cell specific. Kallikrein 10 is reported to be up regulated in pancreatic cancer and ovarian cancer, but down regulated in testicular cancer and breast cancer, perhaps due to differential hormonal regulation, or tissue specificities. Breast cancer patients that had elevated kallikrein 10 had a worse prognosis, leading to speculation that kallikrein 10 might be protective in breast cancer, similar to the argument put forth for kallikrein 3 in prostate cancer. Kallikrein 10 is found in high levels in the pancreas and in lower levels in the tonsils, esophagus, skin, brain, testis and ovary. Biological fluids (breast milk, serum, seminal plasma, urine) contain kallikrein 10, the highest levels found in milk. The cerebral spinal fluid (CSF) contains Kallikrein 10, and was reported to be elevated in patients with Alzheimer’s disease. Endogenous inhibitors include kallistatin, protein-C inhibitor and 1-proteinase inhibitor, although Kallikrein 10 can be found complexed to a number of different proteinase inhibitors.

Cellular localization

Secreted

Alternative names

Database links