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It is assumed that the spread of breast cancer cells via the lymphatic system might be influenced by inflammatory reactions and/or the application of chemotherapy or molecularly targeted therapy. Therefore, we analysed survival according to lymphatic vessel density (LVD), lymphovascular invasion (LVI) (both assessed using podoplanin as immunohistochemical marker of lymphatic endothelium) and well-established clinico-pathological features in a group of 358 patients with invasive ductal breast cancer: 139 chemotherapy-naïve (pT1-2/pN0/M0) and 219 treated with chemotherapy (pT1-4/pN1-3/M0). Univariate analysis revealed that high LVD was related to unfavourable disease-free survival (DFS) in pN0/chemotherapy/trastuzumab-naïve patients (P = 0.028). Conversely, in pN+/chemotherapy-treated individuals high LVD was related to favourable DFS (P = 0.019). LVI was a significant indicator of survival (P = 0.005) only in pN0/chemotherapy/trastuzumab-naïve patients. The following parameters were significant independent adverse prognostic factors for DFS: (i) in pN0/chemotherapy/trastuzumab-naïve patients: high LVD (LVD > 7 vessels/mm; RR = 2.7, P = 0.039), LVI (RR = 3.3, P = 0.046) and high tumor grade (G3 vs. G1 + G2; RR = 2.6, P = 0.030); (ii) in pN+/chemotherapy/trastuzumab-treated patients: low LVD (RR = 1.8, P = 0.042), the number of involved lymph nodes (pN3 vs. pN1-2; RR = 2.3, P = 0.012) and the breast cancer subtype (expression of steroid receptors together with HER2 immunonegativity and high proliferation index vs. other breast cancer immunophenotypes; RR = 3.0, P < 0.001). High LVD may identify high progression risk in pN0/chemotherapy/trastuzumab-naïve patients, and low progression risk in pN+/chemotherapy-treated patients. This phenomenon might be explained by potential involvement of lymphangiogenesis in two processes related to cancer eradication: a chemotherapy-stimulated activity of the immune system against cancer cells, or increased tumour drainage influencing the efficacy of cytotoxic drugs.
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Clin Transl Oncol
December 2024
Central Laboratory, The Affiliated Hospital of Yanbian University, Yanji, 133000, China.
Adipocytes represent a significant proportion of breast tissue, comprising between 3.7 and 37% of stromal tissue. They play a pivotal role in metabolic regulation, energy supply, metabolic regulation, support effects, and cytokine release within the breast.
View Article and Find Full Text PDFBreast Cancer Res Treat
December 2024
Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre University Health Network, 700 University Ave, Toronto, ON, M5G 1Z5, Canada.
Purpose: In early-stage breast cancer, steatotic liver disease (SLD) is associated with increased recurrence, cardiovascular events, and non-cancer death. Endocrine therapy (ET) increases the risk of SLD. The impact of cyclin-dependent kinases 4/6 inhibitors (CDK4/6i) on SLD and prognostic association in metastatic breast cancer is unknown.
View Article and Find Full Text PDFAnal Chem
December 2024
Department of Chemistry, Wuhan University, Wuhan 430072, China.
MicroRNAs (miRNAs) regulate a myriad of biological processes and thus have been regarded as useful biomarkers in biomedical research and clinical diagnosis. The specific and highly sensitive detection of miRNAs is of significant importance. Herein, a sensitive and rapid dual-amplification elemental labeling single-particle inductively coupled plasma-mass spectrometry (spICP-MS) analytical method based on strand displacement amplification (SDA) and CRISPR/Cas12a was developed for miRNA-21 detection.
View Article and Find Full Text PDFBiomol Biomed
December 2024
Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Sichuan Province Engineering Technology Research Center of Molecular Diagnosis of Clinical Diseases, Molecular Diagnosis of Clinical Diseases Key Laboratory of Luzhou, Sichuan, China.
Breast cancer (BC) is a prevalent malignant tumor that poses a significant health risk to women. The complexity of basic BC research and clinical treatment is influenced by multiple factors, including age, fertility, hormone metabolism, molecular subtypes, and tumor grading and staging. Traditional in vitro models often fall short of meeting modern research demands, whereas organoids-an emerging 3D primary culture technology-offer a unique platform that better replicates the tumor microenvironment (TME).
View Article and Find Full Text PDFACS Appl Mater Interfaces
December 2024
Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, India.
Copper-based sulfides are attractive candidates for NIR I and II responsive photothermal therapy but often suffer from high hydrophobicity, suboptimal photothermal conversion, and poor biostability and biocompatibility. In the present work, a rapid, one-pot synthesis method was developed to obtain Au-doped CuS (ACSH NDs) dual plasmonic nanodots. ACSH NDs exhibit excellent peroxidase-like catalytic activity for pH-responsive OH radical generation along with efficient glutathione depletion under tumor microenvironment mimicking conditions.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!