Carbonic anhydrases in human keratinocytes and their regulation by all‐ trans retinoic acid and 1α,25‐dihydroxyvitamin D ₃

Carbonic anhydrases ( CA s) are ubiquitously expressed enzymes and catalyse an important physiological reaction of interconverting the hydration of carbon dioxide to bicarbonates, which is crucial for maintaining acid/base equilibrium in certain tissues. While 15 different isoforms of CA s are present in various cell types in human tissues, their expression pattern in the epidermis remains to be investigated. Here, we report the expression of 5...