CYP27B1 is the enzyme responsible for converting 25‐hydroxyvitamin D into its active form, 1,25‐dihydroxyvitamin D (calcitriol).
-A higher expression of CYP27B1 may correlate with a more differentiated tumor phenotype and has been associated in some reports with a better prognosis, potentially via local production of calcitriol that can help regulate cell proliferation and promote apoptosis.
- Reduced expression of CYP27B1 has been linked in some cases to more advanced disease and poorer outcomes.
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