The α(v)β(3) integrin is an adhesion molecule involved in physiological and pathological angiogenesis as well as in tumor invasion and metastasis, and therefore, there is a strong interest in developing novel agents interacting with this molecule. We report the synthesis and characterization of fluorescent α(v)β(3) integrin probes and their use to visualize integrin α(v)β(3) expression on human normal and cancer cells. The fluorescent probes we describe here may be of use for noninvasive imaging of α(V)β(3) integrin expression also in vivo.
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http://dx.doi.org/10.1021/bc900155j | DOI Listing |
Front Biosci (Landmark Ed)
November 2024
Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, 230022 Hefei, Anhui, China.
Background: Gallstone formation is a common digestive ailment, with unclear mechanisms underlying its development. Dysfunction of the gallbladder smooth muscle (GSM) may play a crucial role, particularly with a high-fat diet (HFD). This study aimed to investigate the effects of an HFD on GSM and assess how it alters contractility through changes in the extracellular matrix (ECM).
View Article and Find Full Text PDFACS Cent Sci
December 2024
Leiden Institute of Chemistry, Universiteit Leiden, Einsteinweg 55, 2333 CC Leiden, Netherlands.
The blood-brain barrier (BBB) presents one of the main obstacles to delivering anticancer drugs in glioblastoma. Herein, we investigated the potential of a series of cyclic ruthenium-peptide conjugates as photoactivated therapy candidates for the treatment of this aggressive tumor. The three compounds studied, , , and ([Ru(Phphen) Ac-XRGDX-NH)]Cl with Phphen = 4,7-diphenyl-1,10-phenanthroline and X, X = His or Met), include an integrin-targeted pentapeptide coordinated to a ruthenium warhead via two photoactivated ruthenium-X bonds.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China; Tissue Repairing and Biotechnology Research Center, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, China. Electronic address:
Medical and conservative treatments for intervertebral disc degeneration (IDD) primarily focus on alleviating symptoms. However, effective curative therapies that promote disc regeneration remain lacking. Recent advancements in disc repair materials offer a potential solution, but identifying effective cytokines for regeneration and developing efficient drug delivery systems are crucial for success.
View Article and Find Full Text PDFMol Cancer
December 2024
Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
Cancer-associated fibroblasts (CAFs) exert multiple tumor-promoting functions and are key contributors to drug resistance. The mechanisms by which specific subsets of CAFs facilitate oxaliplatin resistance in colorectal cancer (CRC) have not been fully explored. This study found that THBS2 is positively associated with CAF activation, epithelial-mesenchymal transition (EMT), and chemoresistance at the pan-cancer level.
View Article and Find Full Text PDFTrends Immunol
December 2024
Heidelberg University, Medical Faculty Heidelberg, Department of Dermatology and National Center for Tumor Diseases (NCT), NCT Heidelberg, a partnership between DKFZ and University Hospital Heidelberg, Heidelberg, Germany; German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ) Core Center Heidelberg, 69120 Heidelberg, Germany. Electronic address:
Immune checkpoint inhibitors (ICIs) have transformed cancer treatment but are frequently associated with immune-related adverse events (irAEs). This article offers a novel synthesis of findings from both preclinical and clinical studies, focusing on the molecular mechanisms driving irAEs across diverse organ systems. It examines key immune cells, such as T cell subsets and myeloid cells, which are instrumental in irAE pathogenesis, alongside an in-depth analysis of cytokine signaling [interleukin (IL)-6, IL-17, IL-4), interferon γ (IFN-γ), IL-1β, tumor necrosis factor α (TNF-α)], integrin-mediated interactions [integrin subunits αITGA)4 and ITGB7], and microbiome-related factors that contribute to irAE pathology.
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