The effect of prospidin on Lewis lung carcinoma spreading under hyper- and hypocalcemia was studied. At early stages, increased extracellular calcium level was associated with inhibition of tumor dissemination to the lungs; however, later, colony growth was stimulated. Extracellular calcium level was shown to modulate the antitumor and antimetastatic effect of prospidin.
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Biomed Mater
January 2025
Biomechanics Research Centre (BMEC), School of Engineering, University of Galway, University Road, Galway, H91 TK33, IRELAND.
Bioabsorbable textile scaffolds are promising for bone tissue engineering applications. Their tuneable, porous, fibre based architecture resembles that of native extracellular matrix, and they can sustain tissue growth while being gradually absorbed in the body. In this work, immortalized mouse calvaria preosteoblast MC3T3-E1 cells were cultured in vitro on two warp-knitted bioabsorbable spacer fabric scaffolds made of poly(lactic acid) (PLA) and poly-4-hydroxybutyrate (P4HB), to investigate their osteogenic properties.
View Article and Find Full Text PDFJ Inorg Biochem
December 2024
Rutgers, The State University of New Jersey, Dept of Pharmacology, Physiology & Neuroscience, Newark, NJ, United States of America.
Crown ethers have been shown to have physiological effects ascribed to their ionophoric properties. However, high levels of toxicity precluded interest in their evaluation as therapeutic agents. We prepared new silacrown analogs of crown ethers.
View Article and Find Full Text PDFBull Exp Biol Med
January 2025
School of Basic Medicine, Gannan Medical University, Ganzhou, China.
Extracellular Ca is the first ligand that has been confirmed to function by activating the calcium-sensing receptor (CaSR), a member of G-protein coupled receptors. CaSR controls not only calcium homeostasis, but also plays a pivotal role in many cellular processes such as cell proliferation and apoptosis; moreover, it is implicated in the development of cardiovascular diseases. TGF-β/Smads signaling pathway is a classical pathway of renal fibrosis.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
Cadmium (Cd) is efficiently transferred from soil to food crops, notably rice. Research indicates that indica rice grains may accumulate more Cd than japonica cultivars; however, differences in Cd bioavailability (the fraction of ingested rice Cd absorbed into the systemic circulation) and toxicity remain unexplored, thus hindering a comprehensive understanding of exposure and health risks. To address this, a mouse bioassay was conducted to evaluate the relative bioavailability (RBA) of Cd in 35 samples each of japonica and indica rice, determining which type exhibits lower Cd bioavailability.
View Article and Find Full Text PDFNutrients
December 2024
Institute for Pathophysiology and Allergy Research, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
Background/objectives: The extracellular calcium-sensing receptor (CaSR) is a multifunctional receptor proposed as a possible drug target for inflammatory bowel disease. We showed previously that CaSR inhibition with NPS 2143, a negative allosteric modulator of the CaSR, somewhat ameliorated the symptoms of chemically induced severe colitis in mice. However, it was unclear whether the potential of CaSR inhibition to reduce colitis may have been overshadowed by the severity of the induced inflammation in our previous study.
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