@article{24ad129d89844b3aba55efd3ce9332d4,
title = "Efficient generation of lower induced motor neurons by coupling Ngn2 expression with developmental cues",
abstract = "Human pluripotent stem cells (hPSCs) are a powerful tool for disease modeling of hard-to-access tissues (such as the brain). Current protocols either direct neuronal differentiation with small molecules or use transcription-factor-mediated programming. In this study, we couple overexpression of transcription factor Neurogenin2 (Ngn2) with small molecule patterning to differentiate hPSCs into lower induced motor neurons (liMoNes/liMNs). This approach induces canonical MN markers including MN-specific Hb9/MNX1 in more than 95% of cells. liMNs resemble bona fide hPSC-derived MN, exhibit spontaneous electrical activity, express synaptic markers, and can contact muscle cells in vitro. Pooled, multiplexed single-cell RNA sequencing on 50 hPSC lines reveals reproducible populations of distinct subtypes of cervical and brachial MNs that resemble their in vivo, embryonic counterparts. Combining small molecule patterning with Ngn2 overexpression facilitates high-yield, reproducible production of disease-relevant MN subtypes, which is fundamental in propelling our knowledge of MN biology and its disruption in disease.",
keywords = "CP: Neuroscience, CP: Stem cell research, Dropulation, NGN2, differentiation protocol, human stem cells, motor neuron, multiplexed pooled sequencing, neuronal differentiation, patterning molecules, single cell profiling, spinal cord",
author = "Francesco Limone and {Guerra San Juan}, Irune and Mitchell, {Jana M.} and Smith, {Janell L.M.} and Kavya Raghunathan and Daniel Meyer and Ghosh, {Sulagna Dia} and Alexander Couto and Klim, {Joseph R.} and Joseph, {Brian J.} and John Gold and Mello, {Curtis J.} and James Nemesh and Smith, {Brittany M.} and Matthijs Verhage and McCarroll, {Steven A.} and Olli Pietil{\"a}inen and Ralda Nehme and Kevin Eggan",
note = "Funding Information: We were supported by U01MH115727 to S.A.M., R.N., and K.E., as well as by the Stanley Center for Psychiatric Research at Broad Institute of MIT and Harvard, United States, and the Harvard Stem Cell and Regenerative Biology Department at Harvard University, United States . Funding Information: The authors thank members of the Eggan, McCarroll, Nehme, and Pietil{\"a}inen groups for insights and useful discussions and Lee Rubin and members of the Rubin laboratory for support in the final steps of this project. We are grateful to the Harvard Stem Cell and Regenerative Biology Department (HSCRB) for the use of shared equipment, microscopy core, and FACS facility. We are also grateful to the Stanley Center at the Broad Institute of Harvard and MIT for support with bioinformatics and cloud space. We thank BioRender.com for useful diagrams and images used in figures throughout this publication. We were supported by U01MH115727 to S.A.M. R.N. and K.E. as well as by the Stanley Center for Psychiatric Research at Broad Institute of MIT and Harvard, United States, and the Harvard Stem Cell and Regenerative Biology Department at Harvard University, United States. Conception and study design: F.L. and R.N. Data analysis and interpretation: F.L. O.P. and R.N. Manuscript writing and editing: F.L. O.P. R.N. and M.V. Village design and multi-cell line experiments: J.M. J.L.M.S. and K.R. Immunofluorescence analysis and co-culture studies: F.L. I.G.S.J. A.C. and B.M.S. Conventional motor neuron experiments: F.L. B.M.S. I.G.S.J. and J.R.K. Electrophysiology analysis: B.J.J. J.G. and F.L. Bioinformatics and scRNA-seq: F.L. S.M. O.P. S.D.G. D.M. C.J.M. and J.M. K.E. is cofounder of Q-State Biosciences, Quralis, Enclear Therapies, and is group vice president at BioMarin Pharmaceutical. We worked to ensure diversity in experimental samples through the selection of the cell lines. We worked to ensure diversity in experimental samples through the selection of the genomic datasets. One or more of the authors of this paper self-identifies as an under-represented ethnic minority in their field of research or within their geographical location. One or more of the authors of this paper self-identifies as a gender minority in their field of research. One or more of the authors of this paper self-identifies as a member of the LGBTQIA+ community. Publisher Copyright: {\textcopyright} 2022 The Author(s)",
year = "2023",
month = jan,
day = "31",
doi = "https://doi.org/10.1016/j.celrep.2022.111896",
language = "English",
volume = "42",
pages = "1--21",
journal = "Cell reports",
issn = "2211-1247",
publisher = "Cell Press",
number = "1",
}