Peripheral sensory neurons, once regarded merely as a passive route for nociceptive signals, are now acknowledged as active participants in solid tumor progression. This review explores how sensory neurons influence and are influenced by the tumor microenvironment (TME) through both chemical and electrical signaling, underscoring their pivotal role in the emerging field of cancer neuroscience. We summarize recent findings indicating that cancer-neuron interactions vary among different organs and experimental models, highlighting the ways in which various tumors recruit and reprogram sensory neurons to establish mutual communication loops that foster malignancy.
View Article and Find Full Text PDFUnderstanding and mitigating laboratory hazards is essential for fostering safe and inclusive research environments. However, conducting risk assessments can be challenging and time-consuming, especially for scientists who have new or specific concerns about hazard susceptibility, such as pregnant women. In response, using reproductive hazards as our primary example, we developed HazardPyMatch, a laboratory hazard screening tool designed to be implemented in laboratories across scientific disciplines to support efficient hazard management.
View Article and Find Full Text PDFPlasma cells (PCs) are essential for humoral immunity, as they are responsible for the production of antibodies and contribute to immunological memory. Despite their importance, differentiating between long-lived and short-lived PCs remains a challenge due to a lack of specific markers to distinguish these populations. Addressing this gap, our study introduces a novel J-chain CreERT2 GFP allele (IgJ) for precise genetic studies of PCs.
View Article and Find Full Text PDFLung cancer treatment has benefited greatly through advancements in immunotherapies. However, immunotherapy often fails in patients with specific mutations like KEAP1, which are frequently found in lung adenocarcinoma. We established an antigenic lung cancer model and used it to explore how Keap1 mutations remodel the tumor immune microenvironment.
View Article and Find Full Text PDFTumor mutations can influence the surrounding microenvironment leading to suppression of anti-tumor immune responses and thereby contributing to tumor progression and failure of cancer therapies. Here we use genetically engineered lung cancer mouse models and patient samples to dissect how mutations accelerate tumor growth by reshaping the immune microenvironment. Comprehensive immune profiling of -mutant vs wildtype tumors revealed dramatic changes in myeloid cells, specifically enrichment of Arg1 interstitial macrophages and SiglecF neutrophils.
View Article and Find Full Text PDFUnlabelled: The Kelch-like ECH-associated protein 1 (KEAP1)/nuclear factor erythroid 2-related factor 2 (NRF2) pathway plays a physiologic protective role against xenobiotics and reactive oxygen species. However, activation of NRF2 provides a powerful selective advantage for tumors by rewiring metabolism to enhance proliferation, suppress various forms of stress, and promote immune evasion. Genetic, epigenetic, and posttranslational alterations that activate the KEAP1/NRF2 pathway are found in multiple solid tumors.
View Article and Find Full Text PDFUnlabelled: Small cell lung cancer (SCLC) has limited therapeutic options and an exceptionally poor prognosis. Understanding the oncogenic drivers of SCLC may help define novel therapeutic targets. Recurrent genomic rearrangements have been identified in SCLC, most notably an in-frame gene fusion between RLF and MYCL found in up to 7% of the predominant ASCL1-expressing subtype.
View Article and Find Full Text PDFIn a recent article published in Molecular Cell, Dai et al. demonstrate that energy stress induced by a ketogenic diet or fasting can enhance checkpoint blockade therapy. Energy stress promotes lysosome-mediated degradation of the immunoinhibitory ligand programmed death-ligand 1 (PDL1) and upregulation of tumor interferon (IFN) responses.
View Article and Find Full Text PDFAnn N Y Acad Sci
April 2021
Cancer immunotherapy has dramatically changed the approach to cancer treatment. The aim of targeting the immune system to recognize and destroy cancer cells has afforded many patients the prospect of achieving deep, long-term remission and potential cures. However, many challenges remain for achieving the goal of effective immunotherapy for all cancer patients.
View Article and Find Full Text PDFCancer Discov
February 2021
In lung cancer, enrichment of the lower airway microbiota with oral commensals commonly occurs, and models support that some of these bacteria can trigger host transcriptomic signatures associated with carcinogenesis. Here, we show that this lower airway dysbiotic signature was more prevalent in the stage IIIB-IV tumor-node-metastasis lung cancer group and is associated with poor prognosis, as shown by decreased survival among subjects with early-stage disease (I-IIIA) and worse tumor progression as measured by RECIST scores among subjects with stage IIIB-IV disease. In addition, this lower airway microbiota signature was associated with upregulation of the IL17, PI3K, MAPK, and ERK pathways in airway transcriptome, and we identified as the most abundant taxon driving this association.
View Article and Find Full Text PDFDuring tumorigenesis, the high metabolic demand of cancer cells results in increased production of reactive oxygen species. To maintain oxidative homeostasis, tumor cells increase their antioxidant production through hyperactivation of the NRF2 pathway, which promotes tumor cell growth. Despite the extensive characterization of NRF2-driven metabolic rewiring, little is known about the metabolic liabilities generated by this reprogramming.
View Article and Find Full Text PDFInflammation is recognized as one of the drivers of cancer. Yet, the individual immune components that possess pro- and anti-tumorigenic functions in individual cancers remain largely unknown. NKG2D is a potent activating immunoreceptor that has emerged as an important player in inflammatory disorders besides its well-established function as tumour suppressor.
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