Brooke A. Brown

ORCID: 0000-0002-0475-4382
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About
Contact & Profiles
Research Areas
  • Epigenetics and DNA Methylation
  • Pancreatic and Hepatic Oncology Research
  • Fibroblast Growth Factor Research
  • Extracellular vesicles in disease
  • Cancer, Hypoxia, and Metabolism
  • Wound Healing and Treatments
  • Cancer Cells and Metastasis
  • Advancements in Transdermal Drug Delivery
  • Mass Spectrometry Techniques and Applications
  • Single-cell and spatial transcriptomics
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Gender, Labor, and Family Dynamics
  • Cancer Mechanisms and Therapy
  • Metabolomics and Mass Spectrometry Studies
  • Advanced Proteomics Techniques and Applications
  • PI3K/AKT/mTOR signaling in cancer
  • Phagocytosis and Immune Regulation
  • Machine Learning and ELM
  • RNA Interference and Gene Delivery

University of Virginia
2022-2025

Indiana University Bloomington
2020-2022

Baylor University
2016

Bidirectional cell-cell communication involving exosome-borne cargo such as miRNA has emerged a critical mechanism for wound healing. Unlike other shedding vesicles, exosomes selectively package by SUMOylation of heterogeneous nuclear ribonucleoproteinA2B1 (hnRNPA2B1). In this work, we elucidate the significance exosome in keratinocyte-macrophage crosstalk following injury. Keratinocyte-derived were genetically labeled with GFP-reporter (Exoκ-GFP) using tissue nanotransfection (TNT), and...

10.1021/acsnano.0c03064 article EN ACS Nano 2020-09-15

The tumor microenvironment in pancreatic ductal adenocarcinoma (PDAC) plays a key role progression and response to therapy. dense PDAC stroma causes hypovascularity, which leads hypoxia. Here, we showed that hypoxia drives long-lasting epithelial-mesenchymal transition (EMT) primarily through positive-feedback histone methylation-MAPK signaling axis. Transformed cells preferentially underwent EMT hypoxic regions multiple model systems. Hypoxia drove cell autonomous cells, which, unlike...

10.1158/0008-5472.can-22-2945 article EN Cancer Research 2024-03-12

ABSTRACT Epithelial-mesenchymal transition (EMT) occurs heterogeneously among malignant carcinoma cells to promote chemoresistance. Identifying the signaling pathways involved will nominate drug combinations chemoresponse, but cell population-level studies are inherently fraught, and single-cell transcriptomics limited indirect ontology-based inferences. To understand EMT heterogeneity at a protein level, we combined iterative immunofluorescence imaging of pancreas cancer tumors mutual...

10.1101/2025.02.08.637251 preprint EN bioRxiv (Cold Spring Harbor Laboratory) 2025-02-09

The masses of particles in a bovine milk extracellular vesicle (EV) preparation enriched for exosomes were directly determined the first time by charge detection mass spectrometry (CDMS). In CDMS, both mass-to-charge ratio (m/z) and z are simultaneously individual particles, enabling determinations that far beyond limit (∼1.0 MDa) conventional (MS). Particle charges span wide range from m ∼ 2 to ∼90 MDa 50 ∼1300 e (elementary charges) highly dependent upon conditions used extract isolate...

10.1021/acs.analchem.9b05173 article EN Analytical Chemistry 2020-01-28

<div>Abstract<p>The tumor microenvironment in pancreatic ductal adenocarcinoma (PDAC) plays a key role progression and response to therapy. The dense PDAC stroma causes hypovascularity, which leads hypoxia. Here, we showed that hypoxia drives long-lasting epithelial–mesenchymal transition (EMT) primarily through positive-feedback histone methylation–MAPK signaling axis. Transformed cells preferentially underwent EMT hypoxic regions multiple model systems. Hypoxia drove cell...

10.1158/0008-5472.c.7267919 preprint EN 2024-06-04

Unresolved inflammation compromises diabetic wound healing. Recently, we reported that inadequate RNA packaging in murine wound-edge keratinocyte-originated exosomes (Exoκ) leads to persistent [Zhou, X. ACS Nano 2020, 14(10), 12732−12748]. Herein, use charge detection mass spectrometry (CDMS) analyze intact Exoκ isolated from a 5 day old tissue of mice and heterozygous nondiabetic littermate control group. In CDMS, the (z) mass-to-charge ratio (m/z) individual exosome particles are measured...

10.1021/acs.analchem.2c00453 article EN Analytical Chemistry 2022-06-14
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