Results 71 to 80 of about 57,622 (148)

Perturbation of Spermine Homoeostasis Uncouples Hypersensitive Cell Death From Systemic Plant Immunity

Plant, Cell &Environment, EarlyView.
ABSTRACT Polyamines are key regulators of plant stress responses, yet their contribution to coordinating local immune responses with systemic immunity remains poorly understood. Here, we investigated how spermine (Spm) homeostasis influences local and systemic defence responses in Arabidopsis thaliana following inoculation with Pseudomonas syringae pv.
Jiaqi Zhao, Kostadin E. Atanasov, Olga Jauregui, Rubén Alcázar   +3 more
wiley   +1 more source

Mapping the omics landscape for peri‐implant diseases: A scoping review

Periodontology 2000, EarlyView.
Abstract Objectives To map omics evidence across peri‐implant health, peri‐implant mucositis, and peri‐implantitis, and to identify recurring molecular patterns and candidate biomarker signals relevant to diagnosis, monitoring, and treatment. Materials and Methods This scoping review included human studies using genomics, DNA methylation–based ...
Ethan Ng, Ioannis Fragkioudakis, Jeniffer Perussolo, John Rong Hao Tay, Elena Calciolari, Nikos Donos   +5 more
wiley   +1 more source

Expression of Polyamine Oxidase in Fibroblasts Induces MMP-1 and Decreases the Integrity of Extracellular Matrix

, 2022
Polyamine oxidase (PAOX) (N1-acetylpolyamine oxidase) is a major enzyme in the polyamine catabolism pathway that generates hydrogen peroxide. Hydrogen peroxide plays a crucial role in skin aging via extracellular matrix (ECM) degradation by increasing ...
Hae Dong Jeong, Jeong, Hae Dong, Kim, Jin Hyung, Lee, Seung-Taek, Go Eun Kwon, Kwon, Go Eun, Jin Hyung Kim, Seung-Taek Lee   +7 more
core   +1 more source

Microbial and host‐derived biomarkers for the diagnosis and management of peri‐implant diseases

Periodontology 2000, EarlyView.
Abstract Objectives To critically evaluate the current evidence on microbial and host‐derived biomarkers for the diagnosis and management of peri‐implant diseases, with emphasis on their biological relevance, potential clinical utility, and current translational limitations.
Su Sheng Quach, Ausra Ramanauskaite, Sašo Ivanovski, Pingping Han, Frank Schwarz, Emilio A. Cafferata   +5 more
wiley   +1 more source

EBV‐Driven ODC1 Upregulation Enhances Polyamine Anabolism to Promote Viral Replication and Cisplatin Resistance in Nasopharyngeal Carcinoma

Advanced Science, Volume 13, Issue 61, 3 November 2026.
EBV‑BZLF1 initiates ODC1‑driven polyamine anabolism that correlates with poor clinical prognosis in nasopharyngeal carcinoma. The ODC1–spermidine axis promotes viral replication, cell proliferation and innate immune evasion. Pharmacological inhibition of ODC1 rescues cisplatin sensitivity, establishing ODC1 as a viable therapeutic target for EBV ...
Yueshuo Li, Xudong Hu, Chenxing Yang, Na Liu, Lin Wang, Xi Cai, Min Tang, Ya Cao, Li Shang, Feng Shi   +9 more
wiley   +1 more source

Persisting Region‐Specific Microglia Activation and Synaptic Imbalance During Remission in a DSS‐Induced Colitis Model

Glia, Volume 74, Issue 11, November 2026.
Relapsing colitis region‐specific microglial states beyond remission. Cortical microglia remain pro‐inflammatory and synapse‐disruptive, while hippocampal microglia shift toward a reparative program that maintains neuronal circuit stability. ABSTRACT Ulcerative colitis (UC) patients experience cycles of active gut inflammation and remission, with ...
Lorena Morton, Luis E. Villafuerte, Alejandra P. Garza, Nina Lindemann, Elisa Wider‐Eberspächer, Dunja Bruder, Ildiko R. Dunay   +6 more
wiley   +1 more source

The activation of hepatic and muscle polyamine catabolism improves glucose homeostasis

, 2011
The mitochondrial biogenesis and energy expenditure regulator, PGC-1 alpha, has been previously reported to be induced in the white adipose tissue (WAT) and liver of mice overexpressing spermidine/spermine N (1)-acetyltransferase (SSAT).
Alhonen, Leena, Cerrada-Gimenez, Marc, Susanna Vuohelainen, Leena Alhonen, Maija Tusa, Markku Laakso, Heikkinen, Sami, Marc Cerrada-Gimenez, Hohtola, Esa, Vuohelainen, Susanna, Esa Hohtola, Sami Heikkinen, Pirinen, Eija, Laakso, Markku, Sini Pirnes-Karhu, Uimari, Anne, Eija Pirinen, Jussi Paananen, Tusa, Maija, Koponen, Taina, Pirnes-Karhu, Sini, Paananen, Jussi, Virkamäki, Antti, Anne Uimari, Taina Koponen, Antti Virkamäki   +25 more
core   +1 more source

The Efferocytosis‐Driven Macrophage Polarization: A Concerto in the Tumor Immunosuppressive Microenvironment

MedComm, Volume 7, Issue 11, November 2026.
Efferocytosis is a key process for macrophages to clear apoptotic cells, which undergoes the “ Find Me” chemotaxis signal stage, the “eat me” phagocytosis recognition stage and the “digest me” digestion stage in turn. During the aforementioned three stages, various signaling molecules released by apoptotic cells can promote the phenotypic polarization ...
Qiuping Chen, Chunzhi Wu, Changquan Huang, Hang Zhou   +3 more
wiley   +1 more source

An Alternative to Urea Overdosage: Positive Effects of Urea–Ornithine Combined Treatment on Yield and Metabolism in Wheat

Agronomy
Although ornithine is a key intermediate in nitrogen metabolism and a precursor of polyamines, its potential to replace high-dose urea-induced phytotoxicity has not been previously studied. To investigate whether ornithine reduces the negative effects of
Viktória Kovács, Kamirán Áron Hamow, Magda Pál, Katalin Nagy   +3 more
doaj   +1 more source

Methionine Regulates Antitumour Function of CD8+ T Cells Through Polyamine Synthesis

Immunology, Volume 179, Issue 3, Page 418-433, November 2026.
Methionine restriction in vitro enhances CD8+ T cell effector function by suppressing polyamine synthesis and progressively induces the co‐expression of PD‐1 and TIM‐3. Consistently, sustained dietary methionine restriction diminishes the efficacy of adoptive T cell therapy (ACT) and promotes the expression of terminal exhaustion‐associated markers ...
Tian Zhao, Gillian A. Carleton, Sam Preshaw, Sarah MacPherson, Madison Shiyuk, Joseph Monaghan, Jun Han, Oro Uchenunu, Robert Rottapel, Ralph J. DeBerardinis, Kelly M. Stewart, Bo‐Hyun Kim, Juan Ausió, David R. Goodlett, Helena Pětrošová, Kyle D. Duncan, Julian J. Lum   +16 more
wiley   +1 more source