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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Relaxin favors the morphofunctional integration between skeletal myoblasts and adult cardiomyocytes in coculture.

We have investigated the interaction between mouse skeletal myoblasts and rat cardiomyocytes in coculture and the influence of relaxin. Connexin43 expression, Lucifer yellow microinjection, Ca2+ propagation, and electrophysiological analysis have shown that myoblasts and cardiomyocytes are coupled by functional gap junctions. Cardiomyocytes and relaxin upregulated connexin43 expression and gap junctional communication in myoblasts. Relaxin also increased transjunctional current between myoblasts and between myoblasts and cardiomyocytes. In conclusion, relaxin potentiates the intercellular coupling, upregulating the transcellular exchange of regulatory molecules between myoblasts and cardiomyocytes, including Ca2+. This could favor the transdifferentiation of myoblasts toward a cardiac phenotype.[1]

References

  1. Relaxin favors the morphofunctional integration between skeletal myoblasts and adult cardiomyocytes in coculture. Formigli, L., Francini, F., Chiappini, L., Zecchi-Orlandini, S., Bani, D. Ann. N. Y. Acad. Sci. (2005) [Pubmed]
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