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Comparison of contractile behavior of native murine ventricular tissue and cardiomyocytes derived from embryonic or induced pluripotent stem cells
Author(s) -
Xi Jiaoya,
Khalil Markus,
Shishechian Nava,
Hannes Tobias,
Pfannkuche Kurt,
Liang Huamin,
Fatima Azra,
Haustein Moritz,
Suhr Frank,
Bloch Wilhelm,
Reppel Michael,
Šarić Tomo,
Wernig Marius,
Jänisch Rudolf,
Brockmeier Konrad,
Hescheler Jürgen,
Pillekamp Frank
Publication year - 2010
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fj.09-145177
Subject(s) - embryonic stem cell , induced pluripotent stem cell , microbiology and biotechnology , stem cell , kosr , biology , chemistry , anatomy , biochemistry , gene
Cardiomyocytes generated from embryonic stem cells (ESCs) and induced pluripotent stem (iPS) cells are suggested for repopulation of destroyed myocardium. Because contractile properties are crucial for functional regeneration, we compared cardiomyocytes differentiated from ES cells (ESC‐CMs) and iPS cells (iPS‐CMs). Native myocardium served as control. Murine ESCs or iPS cells were differentiated 11 d in vitro and cocultured 5–7 d with irreversibly injured myocardial tissue slices. Vital embryonic ventricular tissue slices of similar age served for comparison. Force‐frequency relationship (FFR), effects of Ca 2+ , Ni 2+ , nifedipine, ryanodine, β‐adrenergic, and muscarinic modulation were studied during loaded contractions. FFR was negative for ESC‐CMs and iPS‐CMs. FFR was positive for embryonic tissue and turned negative after treatment with ryanodine. In all groups, force of contraction and relaxation time increased with the concentration of Ca 2+ and decreased with nifedipine. Force was reduced by Ni 2+ . Isoproterenol (1 µM) increased the force most pronounced in embryonic tissue (207±31%, n =7;ESC‐CMs: 123±5%, n =4; iPS‐CMs: 120 ±4%, n =8). EC 50 values were similar. Contractile properties of iPS‐CMs and ESC‐CMs were similar, but they were significantly different from ventricular tissue of comparable age. The results indicate immaturity of the sarcoplasmic reticulum and the β‐adrenergic response of iPS‐CMs and ESC‐CMs.—Xi, J., Khalil, M., Shishechian, N., Hannes, T., Pfannkuche, K., Liang, H., Fatima, A., Haustein, M., Suhr, F., Bloch, W., Reppel, M., Šarić, T., Wernig, M., Jaenisch, R., Brockmeier, K., Hescheler, J., Pillekamp, F. Comparison of contractile behavior of native murine ventricular tissue and cardiomyocytes derived from embryonic or induced pluripotent stem cells. FASEB J . 24, 2739–2751 (2010). www.fasebj.org