Publications by authors named "A D Sacchetti"

The recent approval of pembrolizumab in recurrent or metastatic cervical cancer warrants further investigations into the usefulness of immunotherapies for more durable and less radical interventions. In this study, the targeting potential of anti-PD-L1-functionalized immunoliposomes was tested in a 3D in vitro cervical cancer-on-a-chip model. Immunolipsomes were synthesized and decorated externally with monovalent anti-PD-L1 Fab' fragments of commercially available atezolizumab.

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The transmembrane glycoproteins Trop-1/EpCAM and Trop-2 independently trigger Ca and kinase signals for cell growth and tumor progression. Our findings indicated that Trop-1 and Trop-2 tightly colocalize at macroscopic, ruffle-like protrusions (RLP), that elevate from the cell perimeter, and locally recur over hundreds of seconds. These previously unrecognized elevated membrane regions ≥20 µm-long, up to 1.

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Background & Aims: The enteric nervous system (ENS), which is composed of neurons and glia, regulates intestinal motility. Hirschsprung disease (HSCR) results from defects in ENS formation; however, although neuronal aspects have been studied extensively, enteric glia remain disregarded. This study aimed to explore enteric glia diversity in health and disease.

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Article Synopsis
  • The study presents a novel pH-responsive nanocomposite system that merges nanoparticles with cellulose to enhance drug delivery.
  • Researchers utilized advanced polymerization techniques to create a copolymer that allows for uniform nanoparticle production, which effectively releases hydrophobic drugs in acidic environments.
  • In vitro tests confirmed the nanoparticles' biocompatibility and their effectiveness in reducing cancer cell viability, suggesting potential for localized treatment in future therapies.
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Article Synopsis
  • Intra-tumor heterogeneity complicates cancer treatment by contributing to therapy resistance and disease recurrence, but its underlying mechanisms are not well understood.
  • Researchers studied the SW480 colon cancer cell line to explore this diversity and found three distinct subpopulations: resident cancer stem cells (rCSCs), migratory CSCs (mCSCs), and high-relapse cells (HRCs).
  • These subpopulations exhibit different levels of Wnt signaling and gene expression, and spatial transcriptomic data from patient tumors supports their existence and varying distribution in the tumor microenvironment.
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