Publications by authors named "J M Coller"

Cancers evolve not only through the acquisition and clonal transmission of somatic mutations but also by epigenetic mechanisms that modify cell phenotype. Here, we use histology-guided and spatial transcriptomics to characterize hepatoblastoma, a childhood liver cancer that exhibits significant histologic and proliferative heterogeneity despite clonal activating mutations in the Wnt/β-catenin pathway. Highly proliferative regions with embryonal histology show high expression of Wnt target genes, the embryonic biliary transcription factor SOX4, and striking focal expression of the growth factor FGF19.

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mRNA translation and decay are tightly connected. This chapter describes a method to assess the influence of each codon identity on mRNA stability in cultured cells. The technique involves metabolic labeling of the nascent mRNAs by addition of the nucleoside analog 5-ethynyluridine (5-EU), purification of the RNA at different time-points after chase of the 5-EU, then biotinylation with Click chemistry, pull-down, and sequencing.

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Background: Fluoropyrimidine (FP) chemotherapies are commonly prescribed for upper and lower gastrointestinal, breast and head and neck malignancies. Over 16,000 people with cancer require FP chemotherapies per annum in Australia. Between 10 and 40% patients experience grade 3-4 (≥ G3) toxicities that require hospital-based management ± intensive care admission.

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Article Synopsis
  • The study evaluates various deconvolution methods that estimate immune cell levels in tumor samples based on gene expression data during a DREAM Challenge.
  • While many established methods perform adequately for most immune cell types, they struggle with accurately assessing all states of functional CD8+ T cells.
  • Community-contributed methods, particularly a deep learning approach, have shown promising results and could enhance the development of deconvolution techniques, especially in identifying functional CD4+ T cell states.
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