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Chen G, Li S, Karakikes I, Ren L, Chow MZY, Chopra A, Keung W, Yan B, Chan CWY, Costa KD, Kong CW, Hajjar RJ, Chen CS, Li RA. Phospholamban as a crucial determinant of the inotropic response of human pluripotent stem cell-derived ventricular cardiomyocytes and engineered 3-dimensional tissue constructs. Circ Arrhythm Electrophysiol 2014; 8:193-202. [PMID: 25504561 DOI: 10.1161/circep.114.002049] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Human (h) embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) serve as a potential unlimited ex vivo source of cardiomyocytes (CMs). However, a well-accepted roadblock has been their immature phenotype. hESC/iPSC-derived ventricular (v) CMs and their engineered cardiac microtissues (hvCMTs) similarly displayed positive chronotropic but null inotropic responses to β-adrenergic stimulation. Given that phospholamban (PLB) is robustly present in adult but poorly expressed in hESC/iPSC-vCMs and its defined biological role in β-adrenergic signaling, we investigated the functional consequences of PLB expression in hESC/iPSC-vCMs and hvCMTs. METHODS AND RESULTS First, we confirmed that PLB protein was differentially expressed in hESC (HES2, H9)- and iPSC-derived and adult vCMs. We then transduced hES2-vCMs with the recombinant adenoviruses (Ad) Ad-PLB or Ad-S16E-PLB to overexpress wild-type PLB or the pseudophosphorylated point-mutated variant, respectively. As anticipated from the inhibitory effect of unphosphorylated PLB on sarco/endoplasmic reticulum Ca2+-ATPase, Ad-PLB transduction significantly attenuated electrically evoked Ca2+ transient amplitude and prolonged the 50% decay time. Importantly, Ad-PLB-transduced hES2-vCMs uniquely responded to isoproterenol. Ad-S16E-PLB-transduced hES2-vCMs displayed an intermediate phenotype. The same trends were observed with H9- and iPSC-vCMs. Directionally, similar results were also seen with Ad-PLB-transduced and Ad-S16E-transduced hvCMTs. However, Ad-PLB altered neither the global transcriptome nor ICa,L, implicating a PLB-specific effect. CONCLUSIONS Engineered upregulation of PLB expression in hESC/iPSC-vCMs restores a positive inotropic response to β-adrenergic stimulation. These results not only provide a better mechanistic understanding of the immaturity of hESC/iPSC-vCMs but will also lead to improved disease models and transplantable prototypes with adult-like physiological responses.
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Affiliation(s)
- Gaopeng Chen
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Sen Li
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Ioannis Karakikes
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Lihuan Ren
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Maggie Zi-Ying Chow
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Anant Chopra
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Wendy Keung
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Bin Yan
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Camie W Y Chan
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Kevin D Costa
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Chi-Wing Kong
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Roger J Hajjar
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Christopher S Chen
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.)
| | - Ronald A Li
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, Manhattan, NY (G.C., I.K., K.D.C., R.J.H., R.A.L.); Department of Physiology (G.C., S.L., L.R., M.Z.-Y.C., W.K., C.-W.K., R.A.L.), Stem Cell and Regenerative Medicine Consortium (G.C., S.L., L.R., M.Z.-Y.C., W.K., B.Y., C.W.Y.C., C.-W.K., R.A.L.), Department of Anatomy (C.W.Y.C.), LKS Faculty of Medicine, University of Hong Kong, Pokfulam, Hong Kong; Department of Bioengineering, Boston University, MA (A.C., C.S.C.); Harvard Wyss Institute for Biologically Inspired Engineering, Boston, MA (A.C., C.S.C.); and Department of Biology, Hong Kong Baptist University, Hong Kong (B.Y.).
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