LIM kinases are involved in various cellular events such as migration, cycle, and differentiation, but whether they have a role in the specification of mammalian early endoderm remains unclear. In the present study, we found that depletion of LIMK2 severely inhibited the generation of definitive endoderm (DE) from human embryonic stem cells (hESCs) and promoted an early neuroectodermal fate. Upon the silencing of LIMK2 during the endodermal differentiation, the assembly of actin stress fibers was disturbed, and the phosphorylation of cofilin was decreased. In addition, knockdown of LIMK2 during DE differentiation also interfered the upregulation of epithelial-to-mesenchymal transition (EMT)-related genes and cell migration. Collectively, the results highlight that the serine/threonine kinase LIMK2, acting as a key regulator in actin remodeling, plays a critical role in endodermal lineage determination.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11626-021-00582-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mouse totipotent blastomere-like cells model embryogenesis from zygotic genome activation to post implantation.
Cell Stem Cell
January 2025
MOE Key Laboratory of Cell Proliferation and Differentiation, School of Life Sciences, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Beijing Advanced Center of RNA Biology, Peking University, Beijing 100871, China. Electronic address:
Embryo development begins with zygotic genome activation (ZGA), eventually generating blastocysts for implantation. However, in vitro systems modeling the pre-implantation development are still absent and challenging. Here, we used mouse totipotent blastomere-like cells (TBLCs) to develop spontaneous differentiation and blastoid formation systems, respectively.
View Article and Find Full Text PDFSpatiotemporal and genetic cell lineage tracing of endodermal organogenesis at single-cell resolution.
Cell
January 2025
State Key Laboratory of Female Fertility Promotion, Department of Medical Genetics, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China. Electronic address:
During early mammalian development, the endoderm germ layer forms the foundation of the respiratory and digestive systems through complex patterning. This intricate process, guided by a series of cell fate decisions, remains only partially understood. Our study introduces innovative genetic tracing codes for 14 distinct endodermal regions using novel mouse strains.
View Article and Find Full Text PDFGeneration of induced pluripotent stem cell line from a patient with long COVID.
Stem Cell Res
January 2025
Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, USA; Baszucki Family Vascular Surgery Biobank, USA; Division of Vascular Surgery, Department of Surgery, Stanford University School of Medicine, CA, USA. Electronic address:
Long COVID, or post-acute sequelae of SARS-CoV-2 infection, leads to vascular dysfunction, which contributes to the chronic multi-organ damage often seen in affected patients. Long COVID, a global health concern is associated with increased thrombotic risk, also known as COVID-19-associated coagulopathy (CAC). Here, we derived an induced pluripotent stem cell (iPSC) line from peripheral blood mononuclear cells (PBMCs) of a long COVID patient.
View Article and Find Full Text PDFEnhanced sensitivity and scalability with a Chip-Tip workflow enables deep single-cell proteomics.
Nat Methods
January 2025
Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark.
Single-cell proteomics (SCP) promises to revolutionize biomedicine by providing an unparalleled view of the proteome in individual cells. Here, we present a high-sensitivity SCP workflow named Chip-Tip, identifying >5,000 proteins in individual HeLa cells. It also facilitated direct detection of post-translational modifications in single cells, making the need for specific post-translational modification-enrichment unnecessary.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!