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Biocalcite and Carbonic Acid Activators.

Xiaohong Wang1,2, Meik Neufurth3, Emad Tolba3

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Enzymes like carbonic anhydrase and alkaline phosphatase are crucial for forming calcium-based skeletons in animals and humans. Activating these enzymes offers new therapeutic targets for bone diseases and novel biomaterials for tissue engineering.

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Area of Science:

  • Biomineralization
  • Enzymology
  • Biomaterials Science

Background:

  • Enzymes are fundamental to the evolution of inorganic skeletons in diverse organisms, from sponges to humans.
  • Calcium-based skeletons are formed via enzymatic processes, with carbonic anhydrase and alkaline phosphatase playing key roles.

Purpose of the Study:

  • To explore the role of carbonic anhydrase in calcium carbonate biomineralization and its potential as a therapeutic target for bone diseases.
  • To investigate the combination of calcium carbonate and calcium-polyphosphate for developing advanced bone tissue engineering scaffolds.

Main Methods:

  • Focus on carbonic anhydrases and their activators for pharmacological intervention in bone diseases.
  • Examining the interplay between carbonic anhydrase-mediated calcium carbonate synthesis and inorganic polyphosphate metabolism.
  • Developing amorphous calcium carbonate and calcium-polyphosphate composites for bone regeneration.

Main Results:

  • Carbonic anhydrase and alkaline phosphatase are key enzymes in human bone formation, presenting novel targets for osteoporosis treatment.
  • Amorphous calcium carbonate and calcium-polyphosphate composites demonstrate morphogenetic activity, serving as a new generation of bone scaffold materials.

Conclusions:

  • Enzyme activators targeting carbonic anhydrase and alkaline phosphatase hold promise for treating human bone disorders.
  • Novel biomaterials derived from calcium carbonate and polyphosphate offer a morphogenetically active platform for bone tissue engineering and repair.