Spectrochim Acta A Mol Biomol Spectrosc
December 2024
Reactive oxygen species (ROS) play a dual role in the chemotherapy of cancer with cisplatin, providing both anti-tumor effects and contributing to drug resistance at various stages of treatment which seriously affects treatment effectiveness. The detailed mechanism of ROS is urgently necessary to be explored. To address this issue in the non-small-cell lung cancer (NSCLC) with cisplatin-resistance, a reliable assay was developed by synthesizing and characterizing an interesting near-infrared (NIR) ONOO probe BPB with high specificity, quick response (<30 s) and excellent limitation of detection (59 nM), which was further convinced through living cell imaging techniques providing different fluorescence variation between cell and cuvette.
View Article and Find Full Text PDFTumor necrosis factor (TNF) induces systemic inflammatory response syndrome (SIRS), and severe SIRS can serve as a model for studying animal death caused by organ failure. Through strategic cecectomy, we demonstrate that necroptosis in the cecum initiates the death process in TNF-treated mice, but it is not the direct cause of death. Instead, we show that it is the cardiac dysfunction downstream of cecum damage that ultimately leads to the death of TNF-treated mice.
View Article and Find Full Text PDFThere is increasing evidence that abnormal expression of microRNAs is involved in the occurrence and progression of tumors. In previous experiments, we found that the content of hsa-miR-1301-3p in tumor tissues of patients with nonsmall cell lung cancer (NSCLC) showed an obvious upward trend compared with that in normal tissues. We performed a detailed study on the impact and underlying mechanism of hsa-miR-1301-3p in NSCLC cells.
View Article and Find Full Text PDFBackground: Temporary cardiac pacemaker implantation (PM) via the femoral and subclavian veins is widely used in clinics to treat patients with severe bradycardia or tachycardia, but it is technically challenging and potentially associated with various complications.
Hypothesis: This study investigated the feasibility and safety of a novel method of PM implantation via the median cubital vein.
Methods: A total of 279 patients of the First Affiliated Hospital of Xiamen University between March 2020 and December 2021 who required no-emergency PM implantation were enrolled.
The innate immune system plays a critical role in the host response against pathogenic microbial infection. However, aberrant activation of the innate immune pathways is a characteristic feature of various diseases. Thus, targeted drugs must be developed based on the understanding of the innate immune signaling pathways.
View Article and Find Full Text PDFBackground: Long-chain polyunsaturated fatty acids (LCPUFAs) and their metabolites are closely related to neovascular eye diseases. However, the clinical significance of their oxylipins in retinal vein occlusion (RVO) remains inconclusive.
Objectives: This case-control study aimed to explore metabolomic profiles of LCPUFA oxidation in RVO and to identify potential indicators for diagnosis and pathologic progression.
Background: The cardiac-protective role of GSNOR (S-nitrosoglutathione reductase) in the cytoplasm, as a denitrosylase enzyme of S-nitrosylation, has been reported in cardiac remodeling, but whether GSNOR is localized in other organelles and exerts novel effects remains unknown. We aimed to elucidate the effects of mitochondrial GSNOR, a novel subcellular localization of GSNOR, on cardiac remodeling and heart failure (HF).
Methods: GSNOR subcellular localization was observed by cellular fractionation assay, immunofluorescent staining, and colloidal gold particle staining.
Background: Peripartum cardiomyopathy (PPCM) is a potentially life-threatening complication of pregnancy, but identifying patients at higher risk of this condition remains difficult.
Objectives: We conducted a study to identify new risk factors associated with PPCM and predictors of poor outcomes.
Methods: This retrospective analysis included a total of 44 women with PPCM.
The role of alcohol in carcinogenesis has received increasing attention in recent years. Evidence shows its impacts on various aspects, including epigenetics alteration. The DNA methylation patterns underlying alcohol-associated cancers are not fully understood.
View Article and Find Full Text PDFBackground: The WD40-encoding RNA antisense to p53 (WRAP53) is an antisense gene of TP53 with three transcriptional start sites producing three transcript variants involved in the progression of non-small cell lung cancer. However, the mechanism by which these different transcript variants regulate non-small cell lung cancer cell behaviors is to be elucidated.
Methods: Two non-small cell lung cancer cell lines, A549 cells with wild-type p53 and H1975 with mutated p53, were transfected with WRAP53-1α and WRAP53-1β siRNA.
Background: Sterile alpha motif domain and histidine-aspartate domain-containing protein 1 (SAMHD1) is a DNA end resection factor, which is involved in DNA damage repair and innate immunity. However, the role of SAMHD1 in anti-tumor immunity is still unknown. This study investigated the effects of SAMHD1 on stimulator of interferon genes (STING)-type I interferon (IFN) pathway and radiation-induced immune responses.
View Article and Find Full Text PDFBackground: Radiotherapy has been widely used to treat various cancers, but its efficacy depends on the individual involved. Traditional gene-based machine-learning models have been widely used to predict radiosensitivity. However, there is still a lack of emerging powerful models, artificial neural networks (ANN), in the practice of gene-based radiosensitivity prediction.
View Article and Find Full Text PDFTumour-associated macrophages (TAMs) are one of the primary sources of PD-L1 expression in the tumour microenvironment (TME). Ionizing radiation (IR) promotes PD-L1 expression in tumour cells. However, the effect of IR on macrophage PD-L1 expression and the underlying mechanisms remain unclear.
View Article and Find Full Text PDFSteroid receptor coactivator 3 (SRC-3) is a member of the p160 SRC family. This factor can interact with multiple nuclear hormone receptors and transcription factors to regulate the expression of their target genes. Although many physiological roles of SRC-3 have been revealed, its role in atherosclerosis is not clear.
View Article and Find Full Text PDFRadiotherapy (RT) is currently considered as an essential treatment for non-small cell lung cancer (NSCLC); it can induce cell death directly and indirectly via promoting systemic immune responses. However, there still exist obstacles that affect the efficacy of RT such as tumor hypoxia and immunosuppressive tumor microenvironment (TME). Herein, we report that the biomineralized manganese oxide nanoparticles (Bio-MnO NPs) prepared by mild enzymatic reaction could be a promising candidate to synergistically enhance RT and RT-induced immune responses by relieving tumor hypoxia and activating cGAS-STING pathway.
View Article and Find Full Text PDFAbnormal DNA methylation of gene promoters is an important feature in lung adenocarcinoma (LUAD). However, the prognostic value of DNA methylation remains to be further explored. We sought to explore DNA methylation characteristics and develop a quantifiable criterion related to DNA methylation to improve survival prediction for LUAD patients.
View Article and Find Full Text PDFLung adenocarcinoma (LUAD) has high morbidity and mortality worldwide, and its prognosis remains unsatisfactory. Identification of epigenetic biomarkers associated with radiosensitivity is beneficial for precision medicine in LUAD patients. SETD2 is important in repairing DNA double-strand breaks and maintaining chromatin integrity.
View Article and Find Full Text PDFMyocardial infarction (MI) is a serious threat to people's life and health, which is significantly hindered by effective treatment formulations. Interestingly, our recent endeavour of designing selenium-containing polymeric hydrogel has been experimentally proved to be helpful in combating inflammatory responses and treating MI. The design was inspired by selenium with anti-inflammatory and anti-fibrosis activities, and the formulation could also serve as a support of myocardial tissue upon the failure of this function.
View Article and Find Full Text PDFCancer severely threatens human health and has remained the leading cause of disease-related death for decades. With the rapid advancement of nanomedicine, nanoscale metal-organic frameworks are believed to be potentially applied in the treatment and biomedical imaging for various tumors. Zeolite imidazole framework (ZIF)-8 attracts increasing attention due to its high porosity, large specific surface area, and pH-responsiveness.
View Article and Find Full Text PDFSmall cell lung cancer (SCLC) is a highly malignant tumor with extremely poor prognosis. The treatment strategy is very limited, and patient outcomes remain dismal with the 5-year survival rate being mere 3-6%. Thus, novel therapeutic strategies for SCLC patients are urgently needed.
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