Publications by authors named "S C Dwyer"

Background: Mortality from breast cancer is principally due to tumor recurrence. Recurrent breast cancers arise from the pool of residual tumor cells, termed minimal residual disease, that survive treatment and may exist in a dormant state for 20 years or more following treatment of the primary tumor. As recurrent breast cancer is typically incurable, understanding the mechanisms underlying dormant tumor cell survival is a critical priority in breast cancer research.

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Article Synopsis
  • Lung carcinoids (L-CDs) are rare neuroendocrine tumors more common in women and categorized into typical (TCs) and atypical carcinoids (ACs), with ACs having worse prognosis.
  • A study of 15 L-CDs revealed two distinct subtypes, L-CD-PanC, likened to pancreatic tumors, and L-CD-NeU, akin to neuroendocrine tumors, differentiated by their genetic and epigenetic profiles.
  • L-CD-PanC tumors showed changes related to metabolic and pancreatic genes, while L-CD-NeU tumors exhibited high mutational loads and specific environmental mutational signatures, suggesting different underlying causes and potential treatment implications.
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The Heisenberg uncertainty principle dictates that the position and momentum of an object cannot be simultaneously measured with arbitrary precision, giving rise to an apparent limitation known as the standard quantum limit (SQL). Gravitational-wave detectors use photons to continuously measure the positions of freely falling mirrors and so are affected by the SQL. We investigated the performance of the Laser Interferometer Gravitational-Wave Observatory (LIGO) after the experimental realization of frequency-dependent squeezing designed to surpass the SQL.

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The loss of upper and lower motor neurons, and their axons is central to the loss of motor function and death in amyotrophic lateral sclerosis (ALS). Due to the diverse range of genetic and environmental factors that contribute to the pathogenesis of ALS, there have been difficulties in developing effective therapies for ALS. One emerging dichotomy is that protection of the neuronal cell soma does not prevent axonal vulnerability and degeneration, suggesting the need for targeted therapeutics to prevent axon degeneration.

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Background: Bacterial cancer therapy was first trialled in patients at the end of the nineteenth century. More recently, tumour-targeting bacteria have been harnessed to deliver plasmid-expressed therapeutic interfering RNA to a range of solid tumours. A major limitation to clinical translation of this is the short-term nature of RNA interference in vivo due to plasmid instability.

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