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Classification of Breast Cancer Through the Perspective of Cell Identity Models.
Adv Exp Med Biol
January 2025
INSERM, Bergonie Cancer Institute, University of Bordeaux, Bordeaux, France.
The mammary epithelium has an inner luminal layer that contains estrogen receptor (ER)-positive hormone-sensing cells and ER-negative alveolar/secretory cells, and an outer basal layer that contains myoepithelial/stem cells. Most human tumours resemble either hormone-sensing cells or alveolar/secretory cells. The most widely used molecular classification, the Intrinsic classification, assigns hormone-sensing tumours to Luminal A/B and human epidermal growth factor 2-enriched (HER2E)/molecular apocrine (MA)/luminal androgen receptor (LAR)-positive classes, and alveolar/secretory tumours to the Basal-like class.
View Article and Find Full Text PDFB cells enhance IL-1 beta driven invasiveness in triple negative breast cancer.
Sci Rep
January 2025
Cawley Center for Translational Cancer Research, Helen F. Graham Cancer Center and Research Institute Christiana Care Health Services, Inc., 4701 Ogletown Stanton Rd Suite 4300, Newark, DE, 19713, USA.
Triple-negative breast cancer (TNBC) is an aggressive subtype often characterized by high lymphocyte infiltration, including tumor-infiltrating B cells (TIBs). These cells are present even in early stages of TNBC and associated with microinvasion. This study shows that co-culturing TNBC cells with B cells increases Interleukin-1β (IL-1β) expression and secretion.
View Article and Find Full Text PDFTriple‑negative breast cancer cell‑derived piR‑31115 promotes the proliferation and migration of endothelial cells via METTL3‑mediated m6A modification of YAP1.
Oncol Rep
March 2025
School of Medicine, Zibo Vocational Institute, Zibo, Shandong 255300, P.R. China.
Triple‑negative breast cancer (TNBC), a highly malignant breast cancer subtype with a pronounced metastatic propensity, forms the focus of the present investigation. MDA‑MB‑231, a prevalently utilized TNBC cell line in cancer research, was employed. In accordance with the tumour angiogenesis theory, cancer cells are capable of instigating angiogenesis and the formation of a novel vascular system within the tumour microenvironment, which subsequently sustains malignant proliferation and metastasis.
View Article and Find Full Text PDFinhibits invasion and metastasis of triple-negative breast cancer cells through multiple targets and pathways.
Nan Fang Yi Ke Da Xue Xue Bao
January 2025
Research Center for Preclinical Medicine, Southwest Medical University, Luzhou 646000, China.
Objectives: To explore the mechanism by which (PSD) inhibits invasion and metastasis of triple-negative breast cancer (TNBC).
Methods: The public databases were used to identify the potential targets of PSD and the invasion and metastasis targets of TNBC to obtain the intersection targets between PSD and TNBC. The "PSD-target-disease" interaction network was constructed and protein-protein interaction (PPI) analysis was performed to obtain the core targets, which were analyzed for KEGG pathway and GO functional enrichment.
Low dose DNA methyltransferase inhibitors potentiate PARP inhibitors in homologous recombination repair deficient tumors.
Breast Cancer Res
January 2025
Department of Medicine (Hematology/Oncology), School of Medicine, University of California San Francisco, 1450 Third St, San Francisco, CA, 94158, USA.
Background: Poly (ADP-Ribose) polymerase inhibitors are approved for treatment of tumors with BRCA1/2 and other homologous recombination repair (HRR) mutations. However, clinical responses are often not durable and treatment may be detrimental in advanced cancer due to excessive toxicities. Thus we are seeking alternative therapeutics to enhance PARP-directed outcomes.
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