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Microencapsulación de células y tejido para terapia celular

  • Microencapsulation
  • Alginate
  • Immunosuppressive Drugs
  • Cells Transplant


Microencapsulation is a technique that protects viable cells in semi-permeable membranes, which allow passage of essential molecules while stopping larger molecules, such as antibodies, involved in the death of transplanted cells. This allows the avoidance of immunosuppressive drugs. Several substances have been used for this purpose, and alginate is one of the most studied and validated. Alginate is extracted from algae present in African and Chilean coasts; different algae can be mixed in variable proportions to produce alginate with distinct characteristics. Commercial alginate evokes an inflammatory response that results in the death of transplanted cells. High purity alginate has already been developed to avoid this issue. There are several applications to this technique, as there are a large number of pathologies that result from the destruction or extraction of tissues, with the consequent loss of function (diabetes mellitus or post-surgical hypoparathyroidism, for example). Finally, there is an additional interest in alginate microencapsulation in this country, given that it can be easily obtained from national algae.

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