Early dissemination refers to the process by which cancer cells spread to distant organs at an early stage of the disease, often before the primary tumor is clinically detectable. Experimental studies have demonstrated that Her2 promotes early dissemination of breast cancer by inhibiting the p38 signaling pathway. However, the precise mechanism by which Her2 suppresses the activation of p38 signaling in early-stage cancer cells (ECCs) remains unclear. Here, we report that MAP3K4, an upstream kinase of p38, is downregulated in Her2 + ductal carcinoma in situ (DCIS) cells and tissues, which is required for Her2-induced early dissemination of DCIS cells by regulating the activation of the p38 signaling cascade. Furthermore, Her2 suppresses the transcription of MAP3K4 by downregulating the expression of HOXB13, a crucial transcription factor contributing to MAP3K4 expression in DCIS cells. Together, these findings unveil a novel downstream regulatory mechanism through which Her2 inhibits the activation of p38 signaling and facilitates early dissemination of breast cancer, offering insights into the development of effective diagnostic methods and targeted therapies for inhibiting the early dissemination of Her2 + breast cancer.
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http://dx.doi.org/10.1186/s12964-024-02000-2 | DOI Listing |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11660853 | PMC |
Antimicrob Resist Infect Control
December 2024
Wolfson Medical Center, Holon, Israel.
Background: Active screening programs and early detection of asymptomatic carriers are effective in preventing carbapenem-resistant Acinetobacter baumannii (CRAB) dissemination in healthcare facilities. This study aims to identify risk factors associated with CRAB carriage among patients upon admission to an acute care hospital.
Methods: A case-case-control study was conducted at an acute care hospital.
Infect Dis Now
December 2024
Centre National de référence de la résistance aux antibiotiques, CHU Kremlin-Bicêtre, Assistance publique Hôpitaux de Paris, France.
Objectives: Even though France faces few severe infections due to carbapenem-producing Enterobacterales (CPE), inter-regional epidemic stages render their dissemination a cause for considerable concern. CPE reporting relies in France on three non-exhaustive monitoring systems (MS): an early-alert system, a nationwide passive surveillance system and the National Reference Centre. We aim to estimate the number and incidence of CPE-related infections in France in 2020 and to identify any overlap between the three systems to determine whether their continued use still serves a purpose.
View Article and Find Full Text PDFLancet Rheumatol
December 2024
SITI, CHU Rennes, Etablissement Français du Sang Bretagne, Rennes, France; INSERM UMR 1236, Université Rennes, INSERM, Etablissement Français du Sang Bretagne, Rennes, France. Electronic address:
Background: Patients with systemic lupus erythematosus (SLE) with inadequate responses to standard therapies have unmet therapeutic needs. The immunomodulatory, proangiogenic, and antifibrotic properties of mesenchymal stromal cells support their use in treating patients with SLE. We aimed to assess the safety of a single intravenous infusion of allogeneic umbilical cord-derived mesenchymal stromal cells in patients with severe SLE.
View Article and Find Full Text PDFJCO Glob Oncol
December 2024
Early Drug Development for Innovative Therapies Division, European Institute of Oncology, IRCCS, Milan, Italy.
Purpose: Trimodal therapy (TMT) is the standard treatment for patients with nonmetastatic inflammatory breast cancer (IBC). TMT consists of neoadjuvant systemic therapy, modified radical mastectomy (MRM), and postmastectomy radiation therapy. Although broadly considered the best approach for IBC, in the United States, only a third of patients receive TMT.
View Article and Find Full Text PDFTher Adv Infect Dis
December 2024
Department of Pediatrics, All India Institute of Medical Sciences, Bathinda 151001, India.
Tuberculosis can present myriad manifestations, affecting multiple organ systems. Common central nervous system (CNS) manifestations include vomiting, headache, blurred vision, neck stiffness, altered sensorium, seizures, and focal neurological deficits. Epilepsia partialis continua (EPC) is a rare manifestation of CNS tuberculosis.
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