Publications by authors named "Anna Okhrimenko"

Survival of colorectal cancer patients is strongly dependent on development of distant metastases. S100A4 is a prognostic biomarker and inducer for colorectal cancer metastasis. Besides exerting intracellular functions, S100A4 is secreted extracellularly.

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In the bone marrow, a population of memory T cells has been described that promotes efficient secondary immune responses and has been considered to be preactivated, owing to its expression of CD69 and CD25. Here we show that human bone marrow professional memory T cells are not activated but are resting in terms of proliferation, transcription, and mobility. They are in the G0 phase of the cell cycle, and their transcriptome is that of resting T cells.

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Immunoglobulin E (IgE) production is tightly regulated at the cellular and genetic levels and is believed to be central to allergy development. At least two cellular pathways exist that lead to systemic anaphylaxis reactions in vivo: IgE-sensitized mast cells and IgG1-sensitized basophils. Passive anaphylaxis, by application of allergen and allergen-specific antibodies in mice, indicates a differential contribution of immunoglobulin isotypes to anaphylaxis.

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Article Synopsis
  • Cytokine memory in Th1 cells is crucial for immune responses, influencing both protection and disease.
  • Researchers identified methylation patterns at the IFNG gene promoter in effector/memory Th1 cells, which are linked to stable effector functions.
  • Early demethylation of key regions during Th1 cell development enhances IFN-γ production and is influenced by IL-12 signaling, indicating a mechanism for maintaining immune memory in these cells.
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