Tiazolidinediona

Estructura química de una tiazolidinediona.

Las tiazolidinedionas (TZD) son una clase de medicamentos introducidos a finales de los años 1990 como terapia para la diabetes mellitus tipo 2 y otras enfermedades relacionadas. Las tiazolidinedionas mejoran la sensibilidad de los tejidos blancos a la insulina por actuar como agonistas selectivos de receptores de la insulina localizados en el núcleo celular.

Mecanismo de acción

Las tiazolidinedionas actúan uniéndose a la molécula PPARγ, un grupo de receptores intracelulares dentro del núcleo. El ligando normal para estos receptores son los ácidos grasos libres y eicosanoides. Al ser activado, el receptor migra al ADN, activando la transcripción genética de un número específico de genes.

Al activar al PPARγ:

Clasificación

Químicamente, los miembros de esta clase son derivados del compuesto principal tiazolidinediona, e incluyen:

De los agentes experimentales se encuentra el MCC-555, un potente antidiabético y la reciente ciglitazona.[5]

Referencias

  1. Panigrahy D, Singer S, Shen LQ, et al (2002). «PPARgamma ligands inhibit primary tumor growth and metastasis by inhibiting angiogenesis». J. Clin. Invest. 110 (7): 923-32. PMID 12370270. 
  2. MedlinePlus - Rosiglitazona. [1]
  3. MedlinePlus - Pioglitazona. [2]
  4. Harrison Principios de Medicina Interna 16a edición. Parte XIV. Endocrinología y metabolismo. Sección 1. Endocrinología. [3]
  5. RODRIGUEZ RIERA, Zalua, XUAREZ MARILL, Lisbet y FERNANDEZ FALCON, Carlota A. Centro de química farmacéutica tiazolidinadionas: una nueva familia de hipoglicemiantes orales. Rev Cubana Farm. [online]. ene.-ago. 1997, vol.31, no.2 [citado 6 de octubre de 2007], p.138-144. Disponible en la World Wide Web: [4]. ISSN 0034-7515.

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