Results 141 to 150 of about 44,829 (223)

Accumulation of an endogenous tryptophan-derived metabolite in colorectal and breast cancers.

PLoS ONE, 2015
Tumor immune escape mechanisms are being regarded as suitable targets for tumor therapy. Among these, tryptophan catabolism plays a central role in creating an immunosuppressive environment, leading to tolerance to potentially immunogenic tumor antigens.
Paolo Puccetti, Francesca Fallarino, Antoine Italiano, Isabelle Soubeyran, Gaetan MacGrogan, Marc Debled, Valerie Velasco, Dominique Bodet, Sandrine Eimer, Marc Veldhoen, Georges C Prendergast, Michael Platten, Alban Bessede, Gilles J Guillemin   +13 more
doaj   +1 more source

Physiological and pathophysiological effects of L-tryptophan’s metabolites on the brain and immunity – a challenge for drug development [PDF]

Pharmacia
The dysregulation of the kynurenine branch from tryptophan (TRP) metabolism can cause an imbalance between neuroprotective kynurenic acid and neurotoxic kynurenine metabolites in some psychiatric and neurodegenerative disorders. Therefore, the modulation
Petar Iliev, Simeon Ivanov, Simeon Lazarov, Georgeta Bocheva   +3 more
doaj   +3 more sources

Homoharringtonine Promotes FTO Degradation to Suppress LILRB4‐Mediated Immune Evasion in Acute Monocytic Leukaemia

Cell Proliferation, EarlyView.
Homoharringtonine (HHT) suppresses immune evasion in acute monocytic leukaemia (AML‐M5) by attenuating the FTO/m6A/LILRB4 axis, thereby enhancing CD8+ T cell cytotoxicity. ABSTRACT Acute monocytic leukaemia, a subtype of acute myeloid leukaemia (AML), is a highly aggressive malignancy characterised by a poor prognosis, primarily due to the ability of ...
Fangfang Huang, Xiang Luo, Mengyu Zhang, Le Jin, Wenxin Sun, Peihan Chen, Xiuli Hong, Chenyu Xu, Meizhi Jiang, Die Hu, Bin Zhang, Shengwei Hu, Chuanjiang Yang, Rui Gao, Jinzhang Zeng, Quanyi Lu, Qiang Luo, Jun Wu, Siming Chen   +18 more
wiley   +1 more source

Kynurenine acts as a signaling molecule to attenuate pulmonary fibrosis by enhancing the AHR-PTEN axis

Journal of Advanced Research
Introduction: Pulmonary fibrosis (PF) is a fatal fibrotic lung disease without any options to halt disease progression. Feasible evidence suggests that aberrant metabolism of amino acids may play a role in the pathoetiology of PF.
Yi Wang, Guo-Rao Wu, Huihui Yue, Qing Zhou, Lei Zhang, Long He, Weikuan Gu, Rongfen Gao, Lingli Dong, Huilan Zhang, Jianping Zhao, Xiansheng Liu, Weining Xiong, Cong-Yi Wang   +13 more
doaj   +1 more source

Beyond PD‐1: Mechanisms of Resistance to Checkpoint Blockade in Classical Hodgkin Lymphoma and Next‐Generation Immune Strategies

European Journal of Haematology, EarlyView.
ABSTRACT PD‐1 inhibitors have reshaped the treatment landscape of classical Hodgkin lymphoma, yet a substantial proportion of patients exhibit primary or acquired resistance driven by tumor‐intrinsic alterations, immunosuppressive microenvironmental signals, metabolic constraints, and EBV‐mediated modulation.
Santino Caserta, Enrica Antonia Martino, Mamdouh Skafi, Maria Eugenia Alvaro, Antonella Bruzzese, Nicola Amodio, Eugenio Lucia, Virginia Olivito, Caterina Labanca, Francesco Mendicino, Ernesto Vigna, Fortunato Morabito, Massimo Gentile   +12 more
wiley   +1 more source

Melatonin and the Dental Pulp: A Scoping Review

International Endodontic Journal, EarlyView.
ABSTRACT Background In general medicine, melatonin is known to enhance wound healing and promote stem cell differentiation. Its potential relevance in endodontics, however, remains underexplored. Objectives This scoping review aimed to systematically assess the available evidence on the effects of melatonin (a) on dental pulp tissue and (b) on human ...
Jasmin Schäfer, Konrad Kleszczynski, Edgar Schäfer   +2 more
wiley   +1 more source

Stem Cells From Dental Pulp, Periodontal Tissues, and Other Oral Sources: Biological Concepts and Regenerative Potential

Journal of Periodontal Research, EarlyView.
A graphical abstract recapping the different sources of dental, periodontal, and other oral‐derived mesenchymal stromal cells (MSCs) and their regenerative mechanisms and potentials. The review's article findings bridge fundamental biological science with translational advances, highlighting the significance of MSCs in craniofacial regenerative ...
Karim M. Fawzy El‐Sayed, Sara El Moshy, Israa Ahmed Radwan, Dina Rady, Aiah A. El‐Rashidy, Marwa M. S. Abbass, Christof E. Dörfer   +6 more
wiley   +1 more source

The Keystone‐Pathogen Hypothesis Updated: The Role of Porphyromonas gingivalis in Periodontitis

Journal of Periodontal Research, EarlyView.
Porphyromonas gingivalis orchestrates a coordinated manipulation of immune and inflammatory responses in periodontal tissues which leads to the generation of a dysbiotic, subgingival biofilm community, and progression of periodontitis. The type 9 secretion system, lipid A modification, and the formation of outer membrane vesicles are important ...
Mike A. Curtis, James A. Garnett, Richard P. Darveau   +2 more
wiley   +1 more source

Targeting the kynurenine pathway: another therapeutic opportunity in the metabolic crosstalk between cancer and immune cells

Frontiers in Oncology
The pivotal role of metabolic reprogramming in cancer-related drug resistance, through the tryptophan-catabolized kynurenine pathway (KP), has been particularly underscored in recent research. This pathway, driven by indoleamine 2,3-dioxygenase 1 (IDO1),
Irene Kang, Irene Kang, George Theodoropoulos, Medhi Wangpaichitr, Medhi Wangpaichitr, Medhi Wangpaichitr, Medhi Wangpaichitr   +6 more
doaj   +1 more source

The Double‐Edged Sword of Gestational Insulin Resistance: Navigating Maternal Adaptation and Its Risks for Pregnancy and Offspring Health

Obesity Reviews, EarlyView.
ABSTRACT Although much research focuses on the effects of hyperglycemia during pregnancy on maternal and offspring health, this narrative review specifically centers on the role of insulin resistance (IR) in pregnancy complications and offspring long‐term health.
Runyu Du, Fei Wang, Ling Li, Qiuyue Wang
wiley   +1 more source