AI Article Synopsis
Article Abstract
Most normal and tumor cells are protected from tumor necrosis factor α (TNFα)-induced apoptosis. Here, we identify the MAP3 kinase tumor progression locus-2 (TPL2) as a player contributing to the protection of a subset of tumor cell lines. The combination of knockdown and TNFα gives rise to a synthetic lethality phenotype via receptor-interacting serine/threonine-protein kinase 1 (RIPK1)-dependent and -independent mechanisms. Whereas wild-type TPL2 rescues the phenotype, its kinase-dead mutant does not. Comparison of the molecular events initiated by small interfering RNA for (si) ± TNFα in treatment-sensitive and -resistant lines revealed that the activation of caspase-8, downstream of miR-21-5p and cFLIP, is the dominant TPL2-dependent event. More important, comparison of the gene expression profiles of all of the tested cell lines results in the clustering of sensitive and resistant lines into distinct groups, providing proof of principle for the feasibility of generating a predictive tool for treatment sensitivity.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6628646 | PMC |
| http://dx.doi.org/10.1073/pnas.1901465116 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sensitivity of bulk electrical impedance spectroscopy (bio-capacitance) probes to cell and culture properties: Study on CHO cell cultures.
Biotechnol Prog
December 2024
Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, Manitoba, Canada.
Bulk electrical impedance spectroscopy (bio-capacitance) probes, hold significant promise for real-time cell monitoring in bioprocesses. Focusing on Chinese hamster ovary (CHO) cells, we present a sensitivity analysis framework to assess the impact of cell and culture properties on the complex permittivity spectrum, ε, and its associated parameters, permittivity increment, Δε, critical frequency, f, and Cole-Cole parameter, α, measured by bio-capacitance probes. Our sensitivity analysis showed that Δε is highly sensitive to cell size and concentration, making it suitable for estimating biovolume during the exponential growth phase, whereas f provides information about cumulative changes in cell size, membrane permittivity, and cytoplasm conductivity during the transition to death phase.
View Article and Find Full Text PDFAir pollution exposure is associated with gene expression in children.
Environ Epigenet
December 2024
Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo 0317, Norway.
Environmental exposures, including air pollutants and lack of natural spaces, are associated with suboptimal health outcomes in children. We aimed to study the associations between environmental exposures and gene expression in children. Associations of exposure to particulate matter (PM) with diameter <2.
View Article and Find Full Text PDFCase report: Therapeutic response to lorlatinib in advanced large-cell neuroendocrine carcinoma of the lung and breast cancer: a heterochronous double malignancy perspective.
Front Pharmacol
December 2024
Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Background: Driver mutations in tyrosine kinases, such as the anaplastic lymphoma kinase (ALK) mutation, are known to play a critical role in the pathogenesis of non-small cell lung cancer (NSCLC) but are rarely observed in large cell neuroendocrine carcinoma (LCNEC). Multiple primary malignancies (MPMs) refer to the occurrence of two or more distinct primary malignancies within the same or different organs and tissues in a single patient, either simultaneously or sequentially.
Case Presentation: We reported a case of advanced LCNEC as a heterochronous double primary malignancy, following a prior breast cancer diagnosis in a 55-year-old woman.
Cytokine screening identifies TNF to potentially enhance immunogenicity of pediatric sarcomas.
Front Immunol
December 2024
Department of Pediatrics, Children's Cancer Research Center, Kinderklinik München Schwabing, TUM School of Medicine, Technical University of Munich, Munich, Germany.
Introduction: Pediatric sarcomas, including osteosarcoma (OS), Ewing sarcoma (EwS) and rhabdomyosarcoma (RMS) carry low somatic mutational burden and low MHC-I expression, posing a challenge for T cell therapies. Our previous study showed that mediators of monocyte maturation sensitized the EwS cell line A673 to lysis by HLA-A*02:01/CHM1-specific allorestricted T cell receptor (TCR) transgenic CD8 T cells (CHM1 CD8 T cells).
Methods: In this study, we tested a panel of monocyte maturation cytokines for their ability to upregulate immunogenic cell surface markers on OS, EwS and RMS cell lines, using flow cytometry.
Migrasome regulator TSPAN4 shapes the suppressive tumor immune microenvironment in pan-cancer.
Front Immunol
December 2024
Trauma Research Center, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China.
Background: Migrasomes are newly identified organelles on the retracting fibers of migrating cells, involved in releasing signaling molecules, expelling damaged mitochondria, and facilitating intercellular communication through phagocytosis. TSPAN4, a key regulator of migrasome formation, is a valuable marker for visualizing these organelles. However, its role in cancer remains unclear.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!