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Using cationic liposomes as carriers for long dsRNA to trigger an antiviral response in rainbow trout cell lines.
In Vitro Cell Dev Biol Anim
January 2025
Department of Biology, Wilfrid Laurier University, 75 University Avenue West, Waterloo, ON, N2L 3C5, Canada.
Long dsRNA induces the expression of type I interferons (IFNs) and IFN-stimulated genes (ISGs) to establish an antiviral state. When induced prophylactically, this antiviral state can reduce the severity and mortality of viral infections. One of the limiting factors in delivering dsRNA in animal models is the lack of an effective carrier that protects the dsRNA from degradation in the extracellular space.
View Article and Find Full Text PDFSTING-Activating Polymers Boost Lymphatic Delivery of mRNA Vaccine to Potentiate Cancer Immunotherapy.
Adv Mater
December 2024
Department of Diagnostic Radiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119074, Singapore.
The unprecedented success of mRNA vaccines against COVID-19 has inspired scientists to develop mRNA vaccines for cancer immunotherapy. However, using nucleoside modified mRNA as vaccine, though evading innate immune toxicity, diminishes its therapeutic efficacy for cancers. Here, we report a polyvalent stimulator of interferon genes (STING) activating polymer (termed as PD) to bolster the immunogenicity of mRNA vaccine.
View Article and Find Full Text PDFAdenoviral-vectored neoantigen vaccine augments hyperexpanded CD8 T cell control of tumor challenge in mice.
J Immunother Cancer
December 2024
Harvard Medical School, Boston, Massachusetts, USA
Background: Neoantigens are promising immunogens for cancer vaccines and are often delivered as adjuvanted peptide vaccines. Adenoviral (Ad) vectors have been shown to induce strong CD8 T cell responses as vaccines against SARS-CoV-2, Ebola, and Zika, but their utility as neoantigen delivery vectors remains largely unexplored. In this study, we examine how an Ad-vectored neoantigen vaccine would impact tumor immunity compared with a peptide neoantigen vaccine.
View Article and Find Full Text PDFPneumocystis jirovecii pneumonia increases the 3-months mortality of anti-MDA5-antibody-positive dermatomyositis patients.
Front Immunol
December 2024
Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Background: Anti-melanoma differentiation-associated gene 5 antibody-positive dermatomyositis (anti-MDA5+DM) patients are associated with considerable mortality, and opportunistic infections including Pneumocystis jirovecii pneumonia (PJP)is the main cause. This study was to identify clinical characteristics, risk factors, and prognostic factors of PJP diagnosed by bronchoalveolar lavage fluid (BALF) metagenomic next-generation sequencing (mNGS) in anti-MDA5+ DM patients.
Methods: In this retrospective observational study, all patients admitted with suspected pneumonia were detected for mNGS in BALF.
miRNA-431-5p enriched in EVs derived from IFN-β stimulated MSCs potently inhibited ZIKV through CD95 downregulation.
Stem Cell Res Ther
November 2024
Department of Orthopedics, Northern Jiangsu People's Hospital, Clinical Teaching Hospital of Medical School, Nanjing University, Yangzhou, China.
Background: Zika virus (ZIKV) primarily spreads through mosquito bites and can lead to microcephaly in infants and Guillain-Barre syndrome in adults. It is noteworthy that ZIKV can persist in the semen of infected males for extended periods and can be sexually transmitted. Infection with ZIKV has severe pathological manifestations on the testicular tissues of male mice, resulting in reduced sperm motility and fertility.
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