Results 81 to 90 of about 198,753 (295)

A Modular Bioinstructive Platform Reveals Mechanistic Insights into Additive‐Free, Topography‐Driven Osteogenesis

Advanced Healthcare Materials, EarlyView.
Engineered microparticle topographies direct human mesenchymal stem cell osteogenesis without biochemical additives. This osteogenic commitment is driven by canonical Hedgehog signaling and followed by temporal IGF‐II engagement. Two‐photon polymerization demonstrates spatial control, enabling the engineering of topographical gradients that pattern ...
Fatmah I. Ghuloum, Leo A. H. Zeef, Lee A. Stevens, Marco A. N. Domingos, Susan J. Kimber, Mahetab H. Amer   +5 more
wiley   +1 more source

Identification and validation of tryptophan-related gene signatures to predict prognosis and immunotherapy response in lung adenocarcinoma reveals a critical role for PTTG1

Frontiers in Immunology
IntroductionTryptophan metabolism is strongly associated with immunosuppression and may influence lung adenocarcinoma prognosis as well as tumor microenvironment alterations.MethodsSequencing datasets were obtained from The Cancer Genome Atlas (TCGA) and
Ziqiang Wang, Ziqiang Wang, Jing Zhang, Chao Zuo, Huili Chen, Luyao Wang, Yiluo Xie, Hongyu Ma, Shengping Min, Xiaojing Wang, Chaoqun Lian   +10 more
doaj   +1 more source

Cancer immunotherapy by targeting IDO1/TDO and their downstream effectors

Frontiers in Immunology, 2015
The tryptophan to kynurenine metabolic pathway is now firmly established as a key regulator of innate and adaptive immunity. A plethora of preclinical models suggests that this immune tolerance pathway - driven by the key and rate-limiting enzymes ...
Michael ePlatten, Nikolaus evon Knebel Doeberitz, Iris eOezen, Wolfgang eWick, Katharina eOchs   +4 more
doaj   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

Advanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang, Atakan Tevlek, Pawel L. Urban, Boaz Mizrahi, Onome Ejeromedoghene, Roshan Deen, Yuanjing Lin, Jagan Mohan Dodda   +7 more
wiley   +1 more source

Regulation of arginine transport by GCN2 eIF2 kinase is important for replication of the intracellular parasite Toxoplasma gondii [PDF]

, 2019
Toxoplasma gondii is a prevalent protozoan parasite that can infect any nucleated cell but cannot replicate outside of its host cell. Toxoplasma is auxotrophic for several nutrients including arginine, tryptophan, and purines, which it must acquire from ...
Amin, Parth H., Augusto, Leonardo, Sullivan, William J., Wek, Ronald C.   +3 more
core   +2 more sources

Nutritional Aspect of Tryptophan Metabolism [PDF]

International Journal of Tryptophan Research, 2013
Mammals, including humans, can synthesize the vitamin nicotinamide from tryptophan in the liver. The resultant nicotinamide is distributed to non-hepatic tissues. We have studied the effects of changes in tryptophan–nicotinamide metabolism on niacin nutritional status. The liver plays a critical role in nicotinamide supply.
Fukuwatari, Tsutomu, Shibata, Katsumi
openaire   +2 more sources

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

Advanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip, Somayah S. Qutub, Manar M. Farooqui, Walaa Baslyman, Nida Khalfay, Lukman O. Alimi, Patricia Lopez Sanchez, Lingyun Zhao, Milena Chernyshevskaia, Giovanni Colombo, Niveen M. Khashab, Stefan T. Arold, Raik Grünberg   +12 more
wiley   +1 more source

Age-related increase of kynurenic acid in human cerebrospinal fluid-IgG and beta(2)-microglobulin changes [PDF]

, 2005
Kynurenic acid (KYNA) is an endogenous metabolite in the kynurenine pathway of tryptophan degradation and is an antagonist at the glycine site of the N-methyl-D-aspartate as well as at the alpha 7 nicotinic cholinergic receptors. In the brain tissue KYNA
Baran, H, Ferraz-Leite, H, Kainz, A, Kalina, P, Kepplinger, B, Newcombe, J   +5 more
core  

Turning Unpredictable Biomolecule Adsorption to Controlled Corona Formation: Focus on Carbon Nanomaterials

Advanced Materials, EarlyView.
Controlling the protein corona formation onto carbon nanomaterials (CNMs) enhances their functionalities as platforms for cancer theranostics. Here, we reviewed the effects of the intrinsic and acquired properties of CNMs on protein corona formation, the consequent biological and toxicological outcomes, and the strategies to reshape corona formation ...
Yajuan Zou, Yalei Hu, Jie Yu, Naoki Komatsu, Yuta Nishina, Alberto Bianco   +5 more
wiley   +1 more source

Seagrass Posidonia oceanica (L.) Delile as a marine biomarker: A metabolomic and toxicological analysis [PDF]

, 2018
A human-made environmental disaster due to the shipwrecked of Costa Concordia cruise vessel on the Tuscan Island of Giglio (Italy) coast and the possible pollutants release has been feared, so requiring the activation of removal operations and the ...
Agostini, Ardizzone, Beck, Bitam, Boudouresque, Cannac, Dalla Via, Del Moral, Del Serrone, Di Sotto, Di Sotto, Di Sotto, Di Sotto, Dumay, Díaz, Farah, Fitzpatrick, Fonseca, Francour, Gacia, Gacia, Grace, Greco, Heglmeier, Jones, Kuo, Lassauque, Maestrini, Maggi, Moglia, Mollica, Montefalcone, Nicoletti, Nicoletti, Pérez, Reich, Richir, Ruiz, Sager, Toniolo   +39 more
core   +1 more source