Publications by authors named "Christian Siatka"

Article Synopsis
  • - Ovarian cancer is the most deadly gynecological cancer, often diagnosed late due to non-specific symptoms and ineffective diagnostic methods.
  • - This review focuses on human epididymis protein 4 (HE4), which is overexpressed in ovarian cancer and discusses the laboratory techniques for detecting HE4 in urine.
  • - Urine HE4 shows potential as a non-invasive tumor marker for ovarian cancer detection, monitoring, and assessing treatment response, but standardized detection methods are essential for clinical use.
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Since the discovery of the CRISPR-Cas engineering system in 2012, several approaches for using this innovative molecular tool in therapeutic strategies and even diagnosis have been investigated. The use of this tool requires a global approach to DNA damage processes and repair systems in cells. The diversity in the functions of various Cas proteins allows for the use of this technology in clinical applications and trials.

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The industrial hemp plant Cannabis sativa is a source of vegetable fiber for both textiles and biocomposite applications. After harvesting, the plant stems are laid out on the ground and colonized by microorganisms (bacteria and fungi) naturally present in the soil and on the stems. By producing hydrolytic enzymes that degrade the plant wall polymers, the natural cement that binds the fiber bundles together is removed, thus facilitating their dissociation (retting process) which is required for producing high-performant fibers.

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Introduction: Gynecological cancers account for a large number of cancer-related deaths in women. Endometrial cancer is the most prevalent, while ovarian cancer is the deadliest gynecological cancer worldwide. To overcome the clinical need for easy and rapid testing, there is a growing interest in cancer detection in non-invasive modalities.

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Article Synopsis
  • Ovarian cancer is the most lethal gynecological cancer, often diagnosed late due to vague symptoms and ineffective diagnostic methods, highlighting the need for new approaches.
  • This study focuses on developing DNA-based aptamers that can detect the ovarian cancer biomarker HE4 in urine, which is overexpressed in cancer but not in healthy individuals.
  • Two specific aptamers, AHE1 and AHE3, were successfully created and demonstrated a strong ability to bind to HE4 protein in urine, suggesting they could be valuable for future non-invasive diagnostic tests for ovarian cancer.
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The objective of forensic sciences is to find clues in a crime scene in order to reconstruct the scenario. Classical samples include DNA or fingerprints, but both have inherent limitations and can be uninformative. Another type of sample has emerged recently in the form of the microbiome.

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The Forensic Science Institute of the French "Gendarmerie Nationale" (IRCGN™) developed in 2015 an ISO 17025 certified mobile DNA laboratory for genetic analyses. This Mobil'DNA laboratory is a fully autonomous and adaptable mobile laboratory to perform genetic analyses in the context of crime scenes, terrorism attacks or disasters. To support the hospital task force in Paris during the peak of the COVID-19 epidemic, we adapted this mobile genetic laboratory to perform high-throughput molecular screening for coronavirus SARS-CoV-2 by real-time PCR.

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This work was designed to determine whether IGF-1 and EGF modulate nuclear transfer and transactivation of the androgen receptor (AR) in human prostate cell lines (PNT1A and DU-145). We first characterized the IGF-1 and EGF receptors by ligand-binding assays with [125I] IGF-1 and [125I] EGF in a normal human prostate epithelial cell line, PNT1A. We then evaluated the effects of these growth factors on AR nuclear transfer and transcriptional activation in this cell line and in DU-145, a human prostate tumor cell line.

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