Publications by authors named "Katerina Vodickova-Kepkova"

The unique properties of stem cells to self-renew and differentiate hold great promise in disease modelling and regenerative medicine. However, more information about basic stem cell biology and thorough characterization of available stem cell lines is needed. This is especially essential to ensure safety before any possible clinical use of stem cells or partially committed cell lines.

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Article Synopsis
  • Human multipotent neural stem cells show promise for treating neurological disorders, but a clear profile for ideal stem cell lines that are safe and effective is still lacking.
  • Using a mass spectrometry technique with selected reaction monitoring, researchers analyzed various culture conditions and measured key protein markers linked to neural differentiation.
  • The developed multiplexed assay can detect different stages of neural cell development and offers a more precise and efficient method for ensuring the quality of neural stem cell lines for clinical applications compared to traditional methods.
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Cell therapies represent a promising approach to slow down the progression of currently untreatable neurodegenerative diseases (e.g., Alzheimer's and Parkinson's disease or amyotrophic lateral sclerosis), as well as to support the reconstruction of functional neural circuits after spinal cord injuries.

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Cytokines, chemokines, and growth factors are key mediators of cell proliferation, migration, and immune response, and in tumor microenvironment, such factors contribute to regulation of tumor growth, immune cell recruitment, angiogenesis, and metastasis. In body fluids, levels of inflammatory mediators reflect the patient immune response to the disease and may predict the effects of targeted therapies. Significant improvements in cytokine detection techniques have been made during last 10 years leading to sensitive quantification of such potent molecules present in low pg/mL levels.

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Article Synopsis
  • * Using bovine oligonucleotide microarrays, researchers found significant differences in gene expression profiles between germinal vesicle stage oocytes from medium and small follicles, with specific genes linked to key biological processes being upregulated or downregulated.
  • * Validation through quantitative real-time RT-PCR confirmed notable differences in certain genes between the two oocyte groups, suggesting that minor variations in transcription profiles can significantly affect the developmental potential of bovine oocytes and embryos.
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Background: The gonadotropin-induced resumption of oocyte meiosis in preovulatory follicles is preceded by expression of epidermal growth factor (EGF)-like peptides, amphiregulin (AREG) and epiregulin (EREG), in mural granulosa and cumulus cells. Both the gonadotropins and the EGF-like peptides possess the capacity to stimulate resumption of oocyte meiosis in vitro via activation of a broad signaling network in cumulus cells. To better understand the rapid genomic actions of gonadotropins (FSH) and EGF-like peptides, we analyzed transcriptomes of cumulus cells at 3 h after their stimulation.

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This study was conducted to investigate the effect of silencing nucleophosmin in the development of in vitro-produced bovine embryos. Nucleophosmin is an abundant multifunctional nucleolar phosphoprotein that participates, for example, in ribosome biogenesis or centrosome duplication control. We showed that although the transcription of embryonic nucleophosmin started already at late eight-cell stage, maternal protein was stored throughout the whole preimplantation development and was sufficient for the progression to the blastocyst stage.

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