The single crystals of two novel copper(ii)-based complexes containing l-methioninol-derived Schiff bases were obtained and characterized. The nanoparticles of these complexes were prepared and their cellular uptake was measured in MDA-MB-231 cells and HUVECs. It was found that these complexes could remarkably induce apoptosis, inhibit proliferation, suppress migration and metastasis, and inhibit angiogenesis and the growth of triple-negative breast cancer derived from MDA-MB-231 cells in vitro. Meanwhile, these complexes exhibit anticancer and antiangiogenic functions by activating the important protein molecules VEGFR2, FAK, AKT and Erk1/2 or their phosphorylated molecules p-VEGFR2, p-FAK, p-AKT, and p-Erk1/2 in the VEGF/VEGFR2 signaling pathway, collapsing the mitochondrial membrane potential, and damaging the level of reactive oxygen species.
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http://dx.doi.org/10.1039/d0dt00380h | DOI Listing |
Int J Biol Macromol
January 2025
School of Pharmacy, Qingdao University, Qingdao 266071, China. Electronic address:
Complex wound closure scenarios necessitate the development of advanced wound dressings that can effectively address the challenges of filling irregularly shaped wounds and managing fatigue failures encountered in daily patient activities. To tackle these issues, we develop a multifunctional hydrogel from natural polysaccharides and polypeptides with injectability and self-healing properties for promoting full-time and multipurpose wound healing. Synthesized through dynamic Schiff base linkages between oxidized hyaluronic acid (OHA), ε-polylysine (ε-PL), and quaternized chitosan (QCS), the OHA/ε-PL/QCS hydrogel can gel rapidly within 50 s.
View Article and Find Full Text PDFGene
January 2025
Department of Pharmacology, Federal University of Paraná, Curitiba, PR, Brazil.
The oncoprotein c-Myc is expressed in all breast cancer subtypes, but its expression is higher in triple-negative breast cancer (TNBC) compared to estrogen receptor (ER+), progesterone receptor (PR+), or human epidermal growth factor receptor 2 (HER2+) positive tumors. The c-Myc gene is crucial for tumor progression and therapy resistance, impacting cell proliferation, differentiation, senescence, angiogenesis, immune evasion, metabolism, invasion, autophagy, apoptosis, chromosomal instability, and protein biosynthesis. Targeting c-Myc has emerged as a potential therapeutic strategy for TNBC, a highly aggressive and deadly breast cancer form.
View Article and Find Full Text PDFToxicol Appl Pharmacol
January 2025
Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. Electronic address:
Breast cancer (BC) is a leading cause of cancer-related mortality among women worldwide, with incidence rates rising globally. Urolithin B (UB), a bioactive metabolite of ellagic acid, has demonstrated promising anticancer effects in various cancer models. This study aimed to evaluate the effects of UB on the growth, angiogenesis, and metastasis of BC cells using both in vivo and in vitro approaches.
View Article and Find Full Text PDFNeurobiol Aging
December 2024
Vanderbilt Memory and Alzheimer's Center, Vanderbilt University Medical Center, Nashville, TN, USA; Pharmacology Department, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA; Epidemiology Doctoral Program, School of Medicine, Vanderbilt University, Nashville, TN, USA; Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA. Electronic address:
We have identified FLT1 as a protein that changes during Alzheimer's disease (AD) whereby higher brain protein levels are associated with more amyloid, more tau, and faster longitudinal cognitive decline. Given FLT1's role in angiogenesis and immune activation, we hypothesized that FLT1 is upregulated in response to amyloid pathology, driving a vascular-immune cascade resulting in neurodegeneration and cognitive decline. We sought to determine (1) if in vivo FLT1 levels (CSF and plasma) associate with biomarkers of AD neuropathology or differ between diagnostic staging in an aged cohort enriched for early disease, and (2) whether FLT1 expression interacts with amyloid on downstream outcomes, such as phosphorylated tau levels and cognitive performance.
View Article and Find Full Text PDFCytokine
January 2025
Department of Cardiology, the First Affiliated Hospital with Nanjing Medical University, Nanjing 210029, Jiangsu Province, China. Electronic address:
Aims: Angiogenesis is tightly controlled by growth factors and cytokines in pathophysiological settings. Despite the importance of Interleukin 29 (IL-29), a newly identified cytokine of type III interferon family, its role in angiogenesis remains unknown. We aimed to elucidate IL-29's impact on angiogenesis under both and physiological and pathological conditions.
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