Category Archives: ESC & iPSC

ESC & iPSC News is an online publication and email newsletter dedicated to the latest research in the fields of embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs).
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Since 2007, ESC & iPSC News has been providing weekly updates on the top publications, reviews, and news in pluripotent stem cell research. Through our website, Twitter, and email newsletters, our editorial team is proud to help keep researchers and medical professionals up-to-date with the latest discoveries, jobs, and event postings in the pluripotent stem cell field.

Inhibition of Protein Kinase D by CID755673 Promotes Maintenance of the Pluripotency of Embryonic Stem Cells

Investigators showed that the protein kinase D inhibitor CID755673 was able to maintain the undifferentiated state of mouse ESCs in combination with the mitogen-activated protein kinase kinase inhibitor.
[Development]
Zhu, Z., Zhang, Y., Wang, X., Wang, X., & Ye, S.-D. (2020). Inhibition of protein kinase D by CID755673 promotes maintenance of the pluripotency of embryonic stem cells. Development. https://doi.org/10.1242/dev.185264 Cite
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PR-DUB Maintains Expression of Critical Genes through FOXK1/2 and ASXL1/2/3-Dependent Recruitment to Chromatin and H2AK119ub1 Deubiquitination

Scientists showed that BAP1 was dependent on the ASXL proteins and FOXK1/2 in facilitating gene activation across the genome. Although PR-DUB previously was shown to cooperate with PRC2, they observed minimal overlap and functional interaction between BAP1 and PRC2 in embryonic stem cells.
[Genome Research]
Kolovos, P., Nishimura, K., Sankar, A., Sidoli, S., Cloos, P. A., Helin, K., & Christensen, J. (2020). PR-DUB maintains expression of critical genes through FOXK1/2 and ASXL1/2/3-dependent recruitment to chromatin and H2AK119ub1 deubiquitination. Genome Research, gr.261016.120. https://doi.org/10.1101/gr.261016.120 Cite
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Calidi Biotherapeutics Announces FDA Approval for COVID-19 Treatment Manufactured by Partner: Personalized Stem Cells

Calidi Biotherapeutics, Inc., announced that the Investigational New Drug application submitted by its partner, Personalized Stem Cells, Inc. They have received FDA approval for the treatment of COVID-19 and pneumonia patients using stem cell therapy.
[Calidi Biotherapeutics, Inc.]
Press Release

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AUF1 Promotes Stemness in Human Mammary Epithelial Cells through Stabilization of the EMT Transcription Factors TWIST1 and SNAIL1

Researchers showed that AUF1 induced epithelial-to-mesenchymal transition and stemness in breast epithelial cells via stabilization of the SNAIL1 and TWIST1 mRNAs, and their consequent upregulation.
[Oncogenesis]
AlAhmari, M. M., Al-Khalaf, H. H., Al-Mohanna, F. H., Ghebeh, H., & Aboussekhra, A. (2020). AUF1 promotes stemness in human mammary epithelial cells through stabilization of the EMT transcription factors TWIST1 and SNAIL1. Oncogenesis, 9(8), 1–12. https://doi.org/10.1038/s41389-020-00255-1 Cite
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Cynata Completes Phase I GvHD Clinical Trial Follow-up with Positive Results

Cynata Therapeutics Ltd. has announced positive results from the two-year follow-up of patients enrolled in the Phase I clinical trial of CYP-001, Cynata’s lead iPSC-derived Cymerus™ mesenchymal stem cell product.
[Cynata Therapeutics Inc.]
Press Release

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Clinical Trial in a Dish Using iPSCs Shows Lovastatin Improves Endothelial Dysfunction and Cellular Cross-Talk in LMNA Cardiomyopathy

Investigators studied a family affected by dilated cardiomyopathy (DCM) due to a frameshift variant in LMNA. Human induced pluripotent stem cell (iPSC)–derived endothelial cells were generated from patients with LMNA-related DCM and phenotypically characterized.
[Science Translational Medicine]
Sayed, N., Liu, C., Ameen, M., Himmati, F., Zhang, J. Z., Khanamiri, S., Moonen, J.-R., Wnorowski, A., Cheng, L., Rhee, J.-W., Gaddam, S., Wang, K. C., Sallam, K., Boyd, J. H., Woo, Y. J., Rabinovitch, M., & Wu, J. C. (2020). Clinical trial in a dish using iPSCs shows lovastatin improves endothelial dysfunction and cellular cross-talk in LMNA cardiomyopathy. Science Translational Medicine, 12(554). https://doi.org/10.1126/scitranslmed.aax9276 Cite
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Induced Pluripotent Stem Cells: Hope in the Treatment of Diseases, Including Muscular Dystrophies

iPSC cells are laboratory-produced cells that combine the biological advantages of somatic adult and stem cells for cell-based therapy. The reprogramming of cells, such as fibroblasts, to an ESC-like state is done by the ectopic expression of transcription factors responsible for generating embryonic stem cell properties.
[International Journal of Molecular Sciences]
Gois Beghini, D., Iwao Horita, S., Cascabulho, C. M., Anastácio Alves, L., & Henriques-Pons, A. (2020). Induced Pluripotent Stem Cells: Hope in the Treatment of Diseases, including Muscular Dystrophies. International Journal of Molecular Sciences, 21(15), 5467. https://doi.org/10.3390/ijms21155467 Cite
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iPS-Derived Early Oligodendrocyte Progenitor Cells from SPMS Patients Reveal Deficient In Vitro Cell Migration Stimulation

The authors developed iPSCs from secondary progressive multiple sclerosis (SPMS)-affected donors and age-matched controls (CT). They confirmed their efficient and similar oligoprogenitor (OPC) differentiation capacity, although they reported SPMS-OPCs were transcriptionally distinguishable from their CT counterparts.
[Cells]
Lopez-Caraballo, L., Martorell-Marugan, J., Carmona-Sáez, P., & Gonzalez-Munoz, E. (2020). iPS-Derived Early Oligodendrocyte Progenitor Cells from SPMS Patients Reveal Deficient In Vitro Cell Migration Stimulation. Cells, 9(8), 1803. https://doi.org/10.3390/cells9081803 Cite
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Lysine Deprivation during Maternal Consumption of Low-Protein Diets Could Adversely Affect Early Embryo Development and Health in Adulthood

Researchers measured three pertinent variables in human embryonic stem (hES) cells as a model for the inner cell masses of human blastocysts. They found that RNA encoding the alpha-aminoadipic semialdehyde synthase enzyme, which regulates glutamate production from lysine, was highly expressed in hES cells.
[International Journal of Environmental Research and Public Health]
Van Winkle, L. J., Galat, V., & Iannaccone, P. M. (2020). Lysine Deprivation during Maternal Consumption of Low-Protein Diets Could Adversely Affect Early Embryo Development and Health in Adulthood. International Journal of Environmental Research and Public Health, 17(15), 5462. https://doi.org/10.3390/ijerph17155462 Cite
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Continuous ES/Feeder Cell-Sorting Device Using Dielectrophoresis and Controlled Fluid Flow

To culture PSCs on feeder cell layers, the elimination of feeder cells is required for biological or gene analysis and for cell passage. Therefore, a simple and cost-effective cell sorting technology is required. The authors focused on dielectrophoresis phenomena for cell separation because these do not require any fluorescent or magnetic dyes or antibodies.
[Micromachines]
Takahashi, Y., & Miyata, S. (2020). Continuous ES/Feeder Cell-Sorting Device Using Dielectrophoresis and Controlled Fluid Flow. Micromachines, 11(8), 734. https://doi.org/10.3390/mi11080734 Cite
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PKD1-Dependent Renal Cystogenesis in Human Induced Pluripotent Stem Cell-Derived Ureteric Bud/Collecting Duct Organoids

CRISPR-Cas9 technology deleted PKD1 in human induced pluripotent stem cell and the cells induced to differentiate along pathways leading to formation of either nephron progenitor or uteric bud organoids.
[Journal of the American Society of Nephrology]
Kuraoka, S., Tanigawa, S., Taguchi, A., Hotta, A., Nakazato, H., Osafune, K., Kobayashi, A., & Nishinakamura, R. (2020). PKD1-Dependent Renal Cystogenesis in Human Induced Pluripotent Stem Cell-Derived Ureteric Bud/Collecting Duct Organoids. Journal of the American Society of Nephrology. https://doi.org/10.1681/ASN.2020030378 Cite
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Anti-Abortion Ethicists and Scientists Dominate Trump’s Fetal Tissue Review Board

Research advocates were eager to learn who Health and Human Services Secretary Alex Azar would appoint to the board and to see its ideological makeup. On July 31st they got their first look as it gathered online for a one-time meeting run by the National Institutes of Health.
[ScienceInsider]
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