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Target intelligence / Profile preview
Tissue Non-Specific Alkaline Phosphatase (TNAP)
- Target
- TNAP
- Molecular classification
- Enzyme, Hydrolase, Glycoprotein
01
Overview
Tissue non-specific alkaline phosphatase (TNAP) is a crucial ectoenzyme involved primarily in skeletal mineralization through its ability to degrade inhibitors like PPi. Its activity extends beyond bones into neural tissues where it influences cell differentiation/migration. Loss-of-function mutations cause hypophosphatasia with broad clinical manifestations affecting bones/teeth/neural function. Due to its central role both physiologically and pathologically—including potential involvement in vascular calcification—TNAP remains an important target for research into metabolic bone diseases as well as extra-skeletal disorders linked to abnormal phosphate metabolism or inflammation modulation.
- Other names
- Tissue-nonspecific ALPTNSALPALPL
02
Mechanism of action
Inhibition of TNAP activity to treat diseases such as hypophosphatasia or modulation of its activity for other therapeutic applications.
03
Biological functions
Skeletal mineralizationInorganic pyrophosphate (PPi) hydrolysisPyridoxal 5'-phosphate (PLP) hydrolysisNeural developmentLPS detoxificationAnti-inflammatory responseRegulation of phosphate metabolism
04
Disease associations
HypophosphatasiaRicketsOsteomalaciaDental anomaliesVascular calcificationMetabolic bone diseases
05
Safety considerations
Potential for off-target effects due to widespread expressionCareful monitoring of phosphate and calcium levels during TNAP modulationPotential for drug-induced skeletal toxicityPossible interference with neural development or function
06
Biomarkers
Serum alkaline phosphatase levels (ALP)Inorganic pyrophosphate (PPi) levelsPyridoxal 5'-phosphate (PLP) levels
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