Results 161 to 170 of about 203,922 (264)

Mn/Zn Bimetallic MOF‐Integrated Hydrogel Alleviates Excessive Mitochondrial Fission in BMSCs to Promote Osteoporotic Jawbone Repair

open access: yesAdvanced Science, EarlyView.
Excessive reactive oxygen species (ROS) and chronic inflammation impair bone marrow‐derived mesenchymal stem cells (BMSCs), contributing to poor healing in osteoporotic jawbone defect. The gelatin methacryloyl hydrogel loaded with manganese‐doped zeolitic imidazolate framework (Mn‐ZIF‐8@GelMA) promotes regeneration through redox regulation and ...
Xiayue Jin   +6 more
wiley   +1 more source

Intratumoral Fusogenic Outer Membrane Vesicles Enhance Antitumor Immunity Through Tumor MHC‐I Upregulation and Tumor Bacterization

open access: yesAdvanced Science, EarlyView.
Tumor bacterization by fusogenic outer membrane vesicles enhances microbial‐like recognition of tumor cells while activating the TLR4–NF‐κB–NLRC5 axis to upregulate MHC class I expression. By simultaneously strengthening APC sensing and T‐cell recognition, this strategy breaks tumor immune invisibility and promotes more effective antitumor immune ...
Xing Liu   +9 more
wiley   +1 more source

HADHA K406 Lactylation Regulates Metabolic Reprogramming and Suppresses Immune Responses in Gastric Cancer

open access: yesAdvanced Science, EarlyView.
HADHA K406 lactylation fuels fatty acid β‐oxidation and HMGCR‐dependent cholesterol biosynthesis, fostering immunosuppressive MDSCs and exhausted CD8+ T cells in gastric cancer. Loss of this modification blocks cholesterol production, remodels the tumor microenvironment, and tumor growth is suppressed via combined inhibition of HMGCR and LDHA ...
Maoxiao Feng   +10 more
wiley   +1 more source

Chrysanthemum Morifolium–Derived Nanovesicles Reduce Lactate‐Associated Histone Lactylation and Modulate Microglia‐Mediated Neuroinflammation in Sepsis‐Associated Encephalopathy

open access: yesAdvanced Science, EarlyView.
When used to treat sepsis‐associated encephalopathy, Chrysanthemum morifolium–derived nanovesicles can inhibit the H3K18la/NF‐κB axis to regulate microglia‐mediated neuroinflammation. ABSTRACT Sepsis‐associated encephalopathy (SAE)—a complication of the central nervous system in patients with sepsis—markedly diminishes cognitive functions and is linked
Kaiqiang Li   +11 more
wiley   +1 more source

Barrier immune memory is programmed by intestinal epithelial cell presentation of cytosol-delivered bacterial antigens. [PDF]

open access: yesNat Immunol
Wilson CG   +17 more
europepmc   +1 more source

Donor‐Cell Senescence Redirects PINK1‐Marked Mitochondrial Cargo From Mitophagy to Microvesicle Transfer Through SUMO3‐Stabilized HSPA9

open access: yesAdvanced Science, EarlyView.
ABSTRACT Extracellular vesicle therapies have been developed for tissue repair, but how donor‐cell senescence reshapes vesicle‐mediated mitochondrial transfer remains unclear. Here, we show that senescent adipose‐derived stem cells (ADSCs) redirect damaged mitochondria into microvesicles (MVs), converting protective vesicles into pro‐degenerative ...
Zixuan Ou   +21 more
wiley   +1 more source

Large Oncosomes Induce Pro‐Metastatic Stromal‐Myeloid Reprogramming

open access: yesAdvanced Science, EarlyView.
Large oncosomes systemically reprogram bone marrow mesenchymal stem cells through innate nucleic acid sensing, driving inflammatory and immunosuppressive remodeling that supports a metastasis‐permissive bone marrow environment, revealing a novel tumor‐host communication axis in cancer. ABSTRACT Bone metastasis can be facilitated by systemic remodeling,
Taylon Felipe Silva   +18 more
wiley   +1 more source

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