Publications by authors named "D R Close"

Development, optimization, and calibration of human transient receptor potential (TRP) channel Ca mobilization assays for TRPM8, TRPV1, and TRPA1 are described. Heterologous expression of hTRPM8 in HEK293T cells was required for anti-TRPM8 antibody staining and TRPM8 agonist induced Ca mobilization signals which were both used to optimize transfection efficiency. FLIPR Calcium 6 dye concentration, loading time, and TRPM8 transfected cell seeding density were optimized and a DMSO tolerance of ≤0.

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Article Synopsis
  • Patient-derived tumor organoid (PDTO) models maintain the important characteristics of original tumors, including structural and genetic diversity, making them useful for personalized medicine and drug discovery.
  • The study describes how miniaturizing PDTOs into 96- and 384-well formats allows for effective growth and testing, with organoids showing increased size and number over time when cultured in specific conditions.
  • High-content imaging (HCI) techniques enable in-depth analysis of organoid morphology and viability, revealing insights into drug penetration and organoid response to treatments, particularly in hepatocellular carcinoma (HCC) models.
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Food fraud has serious consequences including reputational damage to businesses, health and safety risks and lack of consumer confidence. New technologies targeted at ensuring food authenticity has emerged and however, the penetration and diffusion of sophisticated analytical technologies are faced with challenges in the industry. This review is focused on investigating the emerging technologies and strategies for mitigating food fraud and exploring the key barriers to their application.

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Background And Purpose: We extend the characterization of the TRPM8 antagonist VBJ103 with tests of selectivity, specificity and distribution, therapeutic efficacy of systemic administration against oxaliplatin-induced cold hyperalgesia and the impact of systemic administration on core body temperature (CBT).

Experimental Approach: Selectivity at human TRPA1 and TRPV1 as well as in vitro safety profiling was determined. Effects of systemic administration of VBJ103 were evaluated in a model of oxaliplatin-induced cold hyperalgesia.

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