Cells sense information encoded in extracellular ligand concentrations and process it using intracellular signalling cascades. Using mathematical modelling and high-throughput imaging of individual cells, we studied how a transient extracellular growth factor signal is sensed by the epidermal growth factor receptor system, processed by downstream signalling, and transmitted to the nucleus. We found that transient epidermal growth factor signals are linearly translated into an activated epidermal growth factor receptor integrated over time. This allows us to generate a simplified model of receptor signaling where the receptor acts as a perfect sensor of extracellular information, while the nonlinear input-output relationship of EGF-EGFR triggered signalling is a consequence of the downstream MAPK cascade alone.
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http://dx.doi.org/10.1039/c4ib00062e | DOI Listing |
BMC Vet Res
January 2025
Division of Oncology, Department of Clinical Sciences, Lund University, Lund, 22381, Sweden.
Background: Prostaglandin E2 (PGE2) is vital for embryo implantation and decidualization. Whether COX2/mPGES1/PGE2 pathway is essential for mouse and human decidualization remains unclear.
Results: This study showed that mPGES1 was highly expressed in the mouse uterus's subluminal stromal cells at the implantation site.
BMC Cancer
January 2025
Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, China.
Background: Multiple studies have demonstrated that the abundance and functionality of γδ T cells are favorable prognostic indicators for prolonged survival in cancer patients. However, the association between the immunophenotype of circulating γδ T cells and the therapeutic response in NSCLC patients undergoing chemotherapy or targeted therapy remains unclear.
Methods: Patients with EGFR wild-type (EGFR-WT) or mutant (EGFR-Mut) non-small cell lung cancer (NSCLC), diagnosed between January 2020 and January 2024, were included in this study.
BMC Pediatr
January 2025
Department of Orthodontics, University Hospital Bonn, Medical Faculty, Welschnonnenstr. 17, 53111, Bonn, Germany.
Background: Children with non-syndromic cleft lip with or without palate (CL ± P) may present alterations in dental development. The purpose of this cross-sectional study was to compare the dental age (DA) between children with and without CL ± P, and whether single nucleotide polymorphisms (SNPs) in genes encoding growth factors are associated with DA variations.
Methods: Children aged between 5 and 14 years with and without CL ± P were recruited to participate in this study.
BMC Pregnancy Childbirth
January 2025
Department of Clinical Science and Education, Department of Obstetrics and Gynecology, Karolinska Institute, Sodersjukhuset, Stockholm, 118 83, Sweden.
Background: Fetal movements are an important indicator of fetal well-being; therefore, reduced fetal movements (RFMs) can indicate fetal compromise. RFM is associated with fetal growth restriction (FGR) and intrauterine fetal death (IUFD). Studies have implied that COVID-19 infection increases the risk of adverse fetal outcomes, such as preterm birth and IUFD.
View Article and Find Full Text PDFLeukemia
January 2025
Department of Pathology, Duke University School of Medicine, Durham, NC, 27710, USA.
Multiple myeloma (MM) remains an incurable hematological malignancy that necessitates the identification of novel therapeutic strategies. Here, we report that intracellular levels of very long chain fatty acids (VLCFAs) control the cytotoxicity of MM chemotherapeutic agents. Inhibition of VLCFA biosynthesis reduced cell death in MM cells caused by the proteasome inhibitor, bortezomib.
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