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Dual-mode-driven nanomotors targeting inflammatory macrophages for the MRI and synergistic treatment of atherosclerosis.
J Nanobiotechnology
January 2025
School of Medical Imaging, Xuzhou Medical University, Xuzhou, 221004, China.
With the progress of atherosclerosis (AS), the arterial lumen stenosis and compact plaque structure, the thickening intima and the narrow gaps between endothelial cells significantly limit the penetration efficiency of nanoprobe to plaque, weakening the imaging sensitivity and therapy efficiency. Thus, in this study, a HO-NIR dual-mode nanomotor, Gd-doped mesoporous carbon nanoparticles/Pt with rapamycin (RAPA) loading and AntiCD36 modification (Gd-MCNs/Pt-RAPA-AC) was constructed. The asymmetric deposition of Pt on Gd-MCNs catalyzed HO at the inflammatory site to produce O, which could promote the self-motion of the nanomotor and ease inflammation microenvironment of AS plaque.
View Article and Find Full Text PDFMulticentre adaptive randomised trial of GvHD prophylaxis following unrelated donor stem cell transplantation comparing Thymoglobulin versus calcineurin inhibitor-based or sirolimus-based post-transplant cyclophosphamide (Methods of T cell Depletion, MoTD trial).
BMJ Open
January 2025
Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK.
Introduction: Graft-versus-host disease (GvHD) remains a major complication of allogeneic stem cell transplantation (allo-SCT), affecting 30-70% of patients (representing 800 new patients per year in the UK). The risk is higher in patients undergoing unrelated allo-SCT. About 1 in 10 patients die as a result of GvHD or through complications of its treatment.
View Article and Find Full Text PDFPP2A Attenuates Thoracic Aneurysm and Dissection in Mouse Models of Marfan Syndrome.
Hypertension
January 2025
Cardiology Division, Department of Medicine, Emory University School of Medicine, Atlanta, GA. (X.Z., Q.X., A.V., Z.L.).
Background: Recent studies show that hyperactivation of mTOR (mammalian target of rapamycin) signaling plays a causal role in the development of thoracic aortic aneurysm and dissection. Modulation of PP2A (protein phosphatase 2A) activity has been shown to be of significant therapeutic value. In light of the effects that PP2A can exert on the mTOR pathway, we hypothesized that PP2A activation by small-molecule activators of PP2A could mitigate AA progression in Marfan syndrome (MFS).
View Article and Find Full Text PDFAdvances in gastrointestinal vascular bleeding disorders: Successful sirolimus treatment in colonic angioectasia.
World J Gastroenterol
January 2025
Department of Gastroenterology, Air Force Medical Center, Beijing 100142, China.
Background: Gastrointestinal (GI) vascular bleeding disorders pose significant clinical challenges due to their complex pathogenesis and varied treatment responses. Despite advancements in diagnostic and therapeutic techniques, optimal management strategies remain elusive, necessitating further research.
Aim: To assess research trends and clinical advancements in GI vascular bleeding disorders, highlighting key themes and therapeutic progress.
Rapamycin-resistant polyclonal Th1/Tc1 cell therapy (RAPA-201) safely induces disease remissions in relapsed, refractory multiple myeloma.
J Immunother Cancer
January 2025
Rapa Therapeutics, Rockville, Maryland, USA.
Background: Polyclonal autologous T cells that are epigenetically reprogrammed through mTOR inhibition and IFN-α polarization (RAPA-201) represent a novel approach to the adoptive T cell therapy of cancer. Ex vivo inhibition of mTOR results causes a shift towards T central memory (T) whereas ex vivo IFN-α promotes type I cytokines, with each of these functions known to enhance the adoptive T cell therapy of cancer. Rapamycin-resistant T cells polarized for a type II cytokine phenotype were previously evaluated in the allogeneic transplantation context.
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