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Lab, Biomedical Engineering, Johns Hopkins University"],"full_dataset_link":["https://www.ebi.ac.uk/ena/browser/view/PRJNA734928"],"scientific_name":["Homo sapiens"],"long_description":["With the increased realization of the effect of oxygen (O2) deprivation (hypoxia) on cellular processes, recent efforts have focused on the development of engineered systems to control O2 concentrations and establish biomimetic O2 gradients to study and manipulate cellular behavior. Nonetheless, O2 gradients present in 3D engineered platforms result in diverse cell behavior across the O2 gradient, making it difficult to identify and study O2 sensitive signaling pathways. Using a layer‐by‐layer assembled O2‐controllable hydrogel, the authors precisely control O2 concentrations and study uniform cell behavior in discretized O2 gradients, then recapitulate the dynamics of cluster‐based vasculogenesis, one mechanism for neovessel formation, and show distinctive gene expression patterns remarkably correlate to O2 concentrations. Using RNA sequencing, it is found that time‐dependent regulation of cyclic adenosine monophosphate signaling enables cell survival and clustering in the high stress microenvironments. Various extracellular matrix modulators orchestrate hypoxia‐driven endothelial cell clustering. Finally, clustering is facilitated by regulators of cell–cell interactions, mainly vascular cell adhesion molecule 1. Taken together, novel regulators of hypoxic cluster‐based vasculogenesis are identified, and evidence for the utility of a unique platform is provided to study dynamic cellular responses to 3D hypoxic environments, with broad applicability in development, regeneration, and disease. Overall design: Use of oxygen-controllable hydrogels for the examination of the role of discretized oxygen gradients on endothelial colony forming cell (ECFC) gene expression at 3 time points (40 minutes, 10 hours, 24 hours), during which ECFC clusters form when cells are exposed to hypoxia, as a first step in cluster-based vasculogenesis."],"repository":["ENA"],"name_synonyms":["Hydrogel., RNA, RNA Sequence Determination, Analyses, Patterned Hydrogel, Effects, Longterm, Determination, RNA Sequence Determinations, Sequence Determination, RNA Sequence, Longterm Effect, In Situ Hydrogels, Long-Term, Dietary Fiber, In Situ Hydrogel, Sequence Determinations, Sequencing, Cell, Long Term, Longterm Effects, Determinations, Patterned Hydrogels, RNA Sequence Analyses, RNA Sequence Analysis, Long Term Effects, Patterned, RNA Sequencing, Long-Term Effect, In Situ, Analysis, Effect, Long-Term Effects, Hydrogel, Sequence Analyses"],"description_synonyms":["Hydrogel., RNA, RNA Sequence Determination, Analyses, Patterned Hydrogel, Effects, Longterm, Determination, RNA Sequence Determinations, Sequence Determination, RNA Sequence, Longterm Effect, In Situ Hydrogels, Long-Term, Dietary Fiber, In Situ Hydrogel, Sequence Determinations, Sequencing, Cell, Long Term, Longterm Effects, Determinations, Patterned Hydrogels, RNA Sequence Analyses, RNA Sequence Analysis, Long Term Effects, Patterned, RNA Sequencing, Long-Term Effect, In Situ, Analysis, Effect, Long-Term Effects, Hydrogel, Sequence Analyses"],"additional_accession":[]},"is_claimable":false,"name":"Time-course bulk RNA sequencing of endothelial colony forming cells in hypoxic and non-hypoxic hydrogels","description":"Time-course bulk RNA sequencing of endothelial colony forming cells in hypoxic and non-hypoxic hydrogels","dates":{"last_updated":"2025-09-24","first_public":"2021-06-07"},"accession":"PRJNA734928","cross_references":{"GEO":["GSE176123"],"taxon":["9606"]}}