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Three-dimensional Biomimetic Technology: Novel Biorubber Creates Defined Micro- and Macro-scale Architectures in Collagen Hydrogels

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El bromo es un oligoelemento esencial para el ensamblaje de los andamios de colágeno IV en el desarrollo y la

A Scott McCall¹, Christopher F Cummings², Gautam Bhave³

¹Department of Pharmacology, Vanderbilt University School of Medicine, 451 Preston Research Building, Nashville, TN 37232, USA.

|June 7, 2014

Resumen

El bromo, como bromuro, es esencial para la formación de enlaces cruzados de sulfilimina en el colágeno IV, un proceso vital para el desarrollo de los tejidos. Este descubrimiento revela el bromo como un elemento traza crucial para la vida animal.

Área de la Ciencia:

La bioquímica es la bioquímica.
Biología celular Biología celular.
Biología del desarrollo Biología del desarrollo.

Sus antecedentes:

El bromuro iónico (Br(-)) está muy extendido en animales, pero carece de una función esencial conocida.
La enzima peroxidasina cataliza los enlaces cruzados de sulfilimina, cruciales para la arquitectura de los tejidos.
El colágeno IV en las membranas basales es un componente estructural clave.

Objetivo del estudio:

Para investigar el papel del bromuro en la formación de sulfilimina catalizada por la peroxidasina.
Para determinar si el bromuro es un elemento esencial para la fisiología animal.
Para aclarar la conexión entre el bromuro, el colágeno IV y la integridad de la membrana del sótano.

Principales métodos:

Pruebas enzimáticas para estudiar la formación de ácido hipobromoso y productos intermedios.
Manipulación dietética de los niveles de bromuro en Drosophila melanogaster.
Análisis fenotípico de la Drosophila con deficiencia de bromuro y mutante de peroxidasina.

Principales resultados:

El bromuro se convierte en ácido hipobromo, lo que facilita la formación de enlaces cruzados de sulfilimina.
La deficiencia de bromuro en la dieta es letal en Drosophila, mientras que la reposición restaura la viabilidad.
La deficiencia de bromuro causa defectos en el desarrollo y en la membrana basal que reflejan a los mutantes de la peroxidasina.

Conclusiones:

El bromuro es un cofactor requerido para la actividad de la peroxidasina y esencial para el enlace cruzado del colágeno IV.
El bromo es un oligoelemento esencial para el desarrollo animal y la integridad de los tejidos.
La deficiencia de bromuro puede contribuir a los defectos de la membrana basal en varias enfermedades.

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