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Cellular extracts from post-mortem human cardiac tissue direct cardiomyogenic differentiation of human adipose tissue-derived stem cells

Fecha

2010

Autores

Perán, Macarena
Marchal, Juan Antonio
López-Ruiz, Elena
Jiménez-Navarro, Manuel
Boulaiz, Houria
Rodríguez-Serrano, Fernado
Carrillo-Delgado, Esmeralda
Sánchez-Espín, Gema
de-Teresa, Eduardo
Tosh, David

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Editor

Elsevier

Resumen

Background aims. The goal was to induce the transdifferentiation (or conversion) of human adipose-derived stem cells to cardiomyocytes using an intracellular extract obtained from adult human heart tissue. Methods. Human adult stem cells from lipoaspirates were transiently permeabilized, exposed to human atrial extracts and allowed to recover in culture. Results. After 21 days, the cells acquired a cardiomyocyte phenotype, as demonstrated by morphologic changes (appearance of binucleate, striated cells and branching fibers), immunofl uorescence detection of cardiac-specifi c markers (connexin-43, sarcomeric a-actinin, cardiac troponin I and T, and desmin) and the presence of cardiomyocyte-related genes analyzed by reverse transcription – polymerase chain reaction (cardiac myosin light chain 1, a -cardiac actin, cardiac troponin T and cardiac b -myosin). Conclusions. We have demonstrated for the fi rst time that adult cardiomyocytes obtained from human donors retain the capacity to induce cardiomyocyte differentiation of mesenchymal stromal cells. The use of autologous extracts for reprogramming adult stem cells may have potential therapeutic implications for treating heart disease.

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Palabras clave

Adipose stem cells, Cardiomyogenic differentiation, Cell extract, Transdifferentiation

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