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Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Video Experimental Relacionado

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Generation of Murine Cardiac Pacemaker Cell Aggregates Based on ES-Cell-Programming in Combination with Myh6-Promoter-Selection
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Un marcapasos biológico creado por la transferencia de genes.

Junichiro Miake1, Eduardo Marbán, H Bradley Nuss

  • 1Institute of Molecular Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.

Nature
|September 13, 2002
PubMed
Resumen

Los investigadores utilizaron la transferencia de genes virales para crear nuevas células marcapasos a partir de las células existentes del músculo cardíaco. Esto generaba actividad eléctrica rítmica, ofreciendo una alternativa potencial a los marcapasos electrónicos para enfermedades cardíacas.

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Área de la Ciencia:

  • Biología Cardiovascular Biología Cardiovascular
  • Terapia génica Terapia génica La terapia génica es una terapia genética.
  • La Medicina Regenerativa es una Medicina Regenerativa.

Sus antecedentes:

  • Las células marcapasos cardíacas inician y regulan el ritmo cardíaco.
  • El daño a estas células por enfermedad puede conducir a un colapso circulatorio.
  • El tratamiento actual implica el uso de marcapasos electrónicos implantables.

Objetivo del estudio:

  • Investigar el potencial de la transferencia de genes virales para la generación de células marcapasos funcionales.
  • Explorar una alternativa a los marcapasos electrónicos para el tratamiento de trastornos del ritmo cardíaco.

Principales métodos:

  • Utilizó la transferencia de genes virales para modificar las células del músculo cardíaco en reposo.
  • Evaluación in vivo de la actividad eléctrica de las células generadas.

Principales resultados:

  • Convirtió con éxito las células del músculo cardíaco en células marcapasos funcionales.
  • Demostró la generación de actividad eléctrica espontánea y rítmica en el ventrículo in vivo.

Conclusiones:

  • Los marcapasos genéticamente modificados representan una alternativa prometedora a los dispositivos electrónicos.
  • Este enfoque podría ofrecer una nueva estrategia terapéutica para el manejo del ritmo cardíaco.