Pathogenic fungal infection is a major clinical threat because pathogenic fungi have developed resistant mechanisms to evade the innate immune response, especially interactions with macrophages. Herein, a strategy to activate immune responses of macrophages to fungi based on near-infrared (NIR) responsive conjugated polymer nanoparticles (CPNs-M) is reported for antifungal immunotherapy. Under NIR light irradiation, CPNs-M exposes β-glucan on the surface of fungal conidia by photothermal damage and drug released from CPNs-M. The exposed β-glucan elicits macrophage recognition and subsequently activates calcium-calmodulin (Ca-CaM) signaling followed by the LC3-associated phagocytosis (LAP) pathway to kill fungal conidia. Consequently, a remarkable elimination of intracellular fugal conidia and successful treatment of fungal pneumonia are achieved. This remote regulation strategy to restore pathogen-immune cell interaction on demand provides a new insight into combatting intractable intracellular infections.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.nanolett.2c04484 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Injectable bioresponsive bone adhesive hydrogels inhibit NLRP3 inflammasome on demand to accelerate diabetic fracture healing.
Biomaterials
December 2024
Guangzhou Key Laboratory of Spine Disease Prevention and Treatment, Department of Orthopaedic Surgery, Guangdong Provincial Key Laboratory of Major Obstetric Diseases, Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology, The Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, 510150, PR China. Electronic address:
Diabetes is associated with excessive inflammation, which negatively impacts the fracture healing process and delays bone repair. Previously, growing evidence indicated that activation of the nod-like receptor (NLR) family, such as nod-like receptor thermal protein domain-associated protein 3 (NLRP3) inflammasome induces a vicious cycle of chronic low-grade inflammatory responses in diabetic fracture. Here, we describe the synthesis of a bone adhesive hydrogel that can be locally injected into the fracture site and releases a natural inhibitor of NLRP3 (rutin) in response to pathological cue reactive oxygen species activity (ROS).
View Article and Find Full Text PDFChimeric Peptide-Engineered Polyprodrug Enhances Cytotoxic T Cell Response by Inducing Immunogenic Cell Death and Upregulating Major Histocompatibility Complex Class I.
ACS Nano
December 2024
The Fifth Affiliated Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, the School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, China.
Tumor-specific cytotoxic T cell immunity is critically dependent on effective antigen presentation and sustained signal transduction. However, this immune response is frequently compromised by the inherently low immunogenicity of breast cancer and the deficiency in major histocompatibility complex class I (MHC-I) expression. Herein, a chimeric peptide-engineered stoichiometric polyprodrug (PDPP) is fabricated to potentiate the cytotoxic T cell response, characterized by a high drug loading capacity and precise stoichiometric drug ratio, of which the immunogenic cell death (ICD) inducer of protoporphyrin IX (PpIX) and the epigenetic drug of decitabine (DAC) are condensed into a polyprodrug called PpIX-DAC.
View Article and Find Full Text PDFMirvetuximab Soravtansine in solid tumors: A systematic review and meta-analysis.
PLoS One
December 2024
Department of Obstetrics and Gynaecology, West China Second University Hospital, Sichuan University, Chengdu, China.
Background: Mirvetuximab Soravtansine (MIRV) is a promising antibody‒drug conjugate (ADC) that targets folate receptor alpha (FRα), which is overexpressed in several types of solid tumors. In November 2022, MIRV was approved in the USA for the treatment of adult patients with FRα-positive, platinum-resistant epithelial ovarian, fallopian tube or primary peritoneal cancer who received 1-3 prior systemic treatment regimens. Therefore, high-quality evidence for its efficacy and safety in different cancers is urgently needed.
View Article and Find Full Text PDFBODIPY-Based Ratiometric Fluorescent Probe for Sensing Peroxynitrite in Inflammatory Cells and Tissues.
Biosensors (Basel)
December 2024
State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China.
Peroxynitrite (ONOO) plays an important role in many physiological and pathological processes. Excessive ONOO in cells leads to oxidative stress and inflammation. However, precise monitoring of ONOO levels in specific organelles (e.
View Article and Find Full Text PDFConjugated Naphthalenediimide-Pyridinium Salts in Donor-Acceptor Hybrid Materials for Enhanced Photochromic Properties.
Inorg Chem
December 2024
College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China.
As an emerging class of hybrid materials, donor-acceptor (D-A) hybrid crystals with photoactive organic and inorganic components have gradually become an ideal platform for photochromic materials. Wherein the most available organic components are electron-poor naphthalenediimide, pyridinium, and triazine derivatives, inorganic units are electron-rich polyoxometalates and metal halides. Herein, we introduced pyridinium moieties into the naphthalenediimide core by conjugated bonds so as to increase the electron deficiency of organic species for enhanced photochromic properties.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!