Objective: This study aimed to analyse the correlation between the expression of cell proliferation-associated antigen (Ki-67), cell cycle protein-dependent kinase 4 (CDK4), epidermal growth factor receptor (EGFR), tumour-infiltrating lymphocytes (TILs) and circulating tumour DNA (ctDNA) with the outcome and prognosis of patients with breast cancer (BC) undergoing neoadjuvant chemotherapy (NACT).
Methods: We retrospectively analysed the clinicopathological data of 231 patients with BC who underwent preoperative NACT at XX Hospital between 1 January 2018 and 31 December 2021. Logistic regression models were used to analyse factors influencing NACT efficacy.
Front Cell Dev Biol
November 2024
Fibrillarin (FBL) is a highly conserved and well-researched nucleolar protein found in eukaryotes. Its presence was first identified in 1985 through protein immunoblotting analyses using antisera from patients with autoimmune scleroderma. Through immunoelectron microscopy, FBL was shown to be localized in the dense fibrillar component of the nucleolus, leading to the term "fibrillarin".
View Article and Find Full Text PDFMetabolism reprogramming (MR) is one of the top ten hallmarks of malignant tumors. The aberrant activation of MR has been recognized as a critical contributory factor to the malignant progression of solid tumors. Moreover, various long non-coding RNAs (lncRNAs) are implicated in the aberrant activation of MR in solid tumor cells.
View Article and Find Full Text PDFClimate warming is projected to affect hydrological cycle in forest ecosystems and makes the forest-water relationship more controversial. Currently, planted forests are gaining more public attention due to their role in carbon sequestration and wood production relative to natural forests. However, little is known about how the global patterns and drivers of water yield and water-use efficiency (WUE) differ between planted and natural forests.
View Article and Find Full Text PDFBackground: In triple-negative breast cancer (TNBC) therapy, insufficient tumor infiltration by lymphocytes significantly hinders the efficacy of immune checkpoint inhibitors. We have previously demonstrated that Hainanenin-1 (HN-1), a host defense peptide (HDP) identified from Hainan frog skin, induces breast cancer apoptosis and boots anti-tumor immunity via unknown mechanism.
Methods: We used in vitro experiments to observe immunogenic cell death (ICD) indicators in HN-1-treated TNBC cell lines, a mouse tumor model to verify HN-1 promotion of mice anti-tumor immune response, and an in vitro drug sensitivity test of patient-derived breast cancer cells to verify the inhibitory effect of HN-1.
and are economically valuable species in the genus . While is sexually active, adopts clonal propagation, although it has the potential for sexual reproduction. It is unclear so far at which step during the sexual reproduction of inhibition occurs, and what are the regulatory mechanisms underlying this inhibition.
View Article and Find Full Text PDFUM-164 is a dual inhibitor of c-Src and p38 MAPK, and has been a lead compound for targeting triple-negative breast cancer. UM-164 shows stronger binding to the active sites of Src compared with the conventional Src inhibitor Dasatinib. While Dasatinib has displayed some inhibitory effects on glioma growth in clinical trials, whether UM-164 can suppress glioma growth has not been reported.
View Article and Find Full Text PDFPurpose: Pretreatment neutrophil-to-lymphocyte (NLR) and platelet-to-lymphocyte (PLR) ratios are markers of systemic inflammation. In patients with locally advanced gastric cancer (GC), the utility of these ratios in predicting tumor regression grade (TRG) after neoadjuvant chemotherapy (NCT) remains unclear.
Methods: This retrospective study examined 283 locally advanced GC patients who underwent NCT and radical surgery.
Background: Ferroptosis is a newly discovered form of cell death characterized by iron-dependent lipid peroxidation. This study aims to investigate the potential correlation between ferroptosis and the prognosis of lung adenocarcinoma (LUAD).
Methods: RNA-seq data were collected from the LUAD dataset of The Cancer Genome Atlas (TCGA) database.
Background: Increasing studies have reported that oncogenes regulate components of the immune system, suggesting that this is a mechanism for tumorigenesis. Aurora kinase A (AURKA), a serine/threonine kinase, is involved in cell mitosis and is essential for tumor cell proliferation, metastasis, and drug resistance. However, the mechanism by which AURKA is involved in immune response regulation is unclear.
View Article and Find Full Text PDFChemotherapeutic agents have been linked to immunogenic cell death (ICD) induction that is capable of augmenting anti-tumor immune surveillance. The cardiac glycoside oleandrin, which inhibits Na/K-ATPase pump (NKP), has been shown to suppress breast cancer growth via inducing apoptosis. In the present study, we showed that oleandrin treatment triggered breast cancer cell ICD by inducing calreticulin (CRT) exposure on cell surface and the release of high-mobility group protein B1 (HMGB1), heat shock protein 70/90 (HSP70/90), and adenosine triphosphate (ATP).
View Article and Find Full Text PDFLncRNAs have been proposed to be associated with the tumorigenesis and progression of oral squamous cell carcinoma (OSCC). LncRNA HLA complex group 22 (HCG22) was reported to be lowly expressed and associated with poor prognosis in head and neck squamous cell carcinoma (HNSCC). However, the biological role and related mechanism of HCG22 in OSCC have not been characterized.
View Article and Find Full Text PDFPlant Cell Environ
January 2021
CONSTANS-LIKE (COL) family members are commonly implicated in light signal transduction during early photomorphogenesis. However, some of their functions remain unclear. Here, we propose a role for COL13 in hypocotyl elongation in Arabidopsis thaliana.
View Article and Find Full Text PDFAnthocyanins and flavonols have vital roles in flower coloration, plant development, and defense. Because anthocyanins and flavonols share the same subcellular localization and common biosynthetic substrates, these pathways may compete for substrates. However, the mechanism regulating this potential competition remains unclear.
View Article and Find Full Text PDFPetal morphogenesis has a profound influence on the quality of ornamental flowers. Most current research on petal development focuses on the early developmental stage, and little is known about the late developmental stage. Previously, it was reported that the gene [a gerbera homolog of the gibberellin-stimulated transcript 1 () from tomato] negatively regulates ray petal growth during the late stage of development by inhibiting longitudinal cell expansion.
View Article and Find Full Text PDFBackground: Breast cancer is the most common malignant tumor in women. Due to limited treatment outcome and high rate of metastasis, the prognosis is especially poor for triple-negative breast cancer. It is urgent to discover and develop novel agents for treatment of breast cancer.
View Article and Find Full Text PDFSirtuin-1 (Sirt-1), an NAD-dependent deacetylase, promotes tumorigenesis in glioma; however, whether the Sirt-1 specific inhibitor, EX527 exerts antitumor effects and the underlying mechanism in glioma requires further investigation. In the present study, the proliferative and colony formation abilities of two glioma cell lines (U87MG and LN-299) were inhibited by EX527. Treatment with EX527 increased the number of apoptotic cells (Annexin V-fluorescein isothiocyanate/propidium iodide); pretreatment with the caspase inhibitor Z-VAD-FMK suppressed EX527-induced apoptosis, suggesting that EX527 induced caspase-dependent apoptosis.
View Article and Find Full Text PDFAlthough the involvement of ROS (reactive oxygen species) in leaf senescence is well known, the factors governing this accumulation of ROS are not fully characterized. In this study, analysis of transgenic overexpressing and knock out lines of AtWDS1 (encoding a WD repeat protein), indicates that AtWDS1 negatively regulates age-dependent and dark-induced leaf senescence. Furthermore, we observed ROS accumulation and altered tolerance of oxidative stress in atwds1 plants, as well as upregulated expression of oxidative stress-responsive genes.
View Article and Find Full Text PDFPurpose: To investigate the expressions of class III β-tubulin (TUBB3), nucleotide excision repair cross-complementary gene 1 (ERCC1) and P-glycoprotein (P-gp) in ovarian cancer tissues and adjacent normal tissues and their clinical significance.
Methods: Ovarian cancer patients undergoing surgical resection at the Department of Oncology of the Affiliated Hospital of Shandong Medical College from March 2012 to May 2016 were enrolled in this study, from which 166 cases of pathologically confirmed cancer tissues and 50 cases of adjacent normal tissues were collected. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect the messenger RNA (mRNA) expression levels of TUBB3, ERCC1 and P-gp in ovarian cancer tissues and adjacent normal tissues, and their relationships with ovarian cancer clinical stage and grade of pathological differentiation were analyzed.
Expression of interleukin-6 (IL-6), interleukin-21 (IL-21) and anti-müllerian hormone (AMH) in premature ovarian failure (POF) patients were observed to explore the correlation of each indicator and its significance in POF. One hundred and forty-two patients diagnosed with POF in Binzhou City Center Hospital from June 2014 to December 2015 were selected as the observation group. At the same time, another 140 healthy women were selected as the control group.
View Article and Find Full Text PDFGlioma is the most common malignant tumor of the central nervous system, and it is characterized by high relapse and fatality rates and poor prognosis. Bufalin is one of the main ingredients of Chan-su, a traditional Chinese medicine (TCM) extracted from toad venom. Previous studies revealed that bufalin exerted inhibitory effects on a variety of tumor cells.
View Article and Find Full Text PDFVacquinol‑1 (Vacq), a quinolone derivative, has recently been reported to display potent antitumor effects in glioblastomas by inducing cellular massive vacuolization and cell death. However, whether Vacq induces cytotoxicities in other types of cancers, and the potential underlying mechanism, remain to be investigated. In the present study, it was revealed that Vacq suppressed cell growth and colony formation in the hepatocellular carcinoma (HCC) cell lines BEL7402 and Huh7.
View Article and Find Full Text PDFT cells of the small intestine, including Th17 cells, are critically involved in host protection from microbial infection, and also contribute to the pathogenesis of small bowel inflammatory disorders. Accumulating evidence suggests that mesenteric lymph nodes (MLNs) play important roles in gut-tropic T-cell generation, although it is still unclear if MLNs are involved in the pathogenesis of small intestine inflammation. To address this issue, we analyzed the roles of both MLNs and Peyer's patches (PPs) by evaluating MLN- or PP-deficient mice in an experimental model of small intestine inflammation, induced by CD3-specific mAb injection.
View Article and Find Full Text PDFPetal growth is central to floral morphogenesis, but the underlying genetic basis of petal growth regulation is yet to be elucidated. In this study, we found that the basal region of the ray floret petals of Gerbera hybrida was the most sensitive to treatment with the phytohormones gibberellin (GA) and abscisic acid (ABA), which regulate cell expansion during petal growth in an antagonistic manner. To screen for differentially expressed genes (DEGs) and key regulators with potentially important roles in petal growth regulation by GA or/and ABA, the RNA-seq technique was employed.
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