Results 51 to 60 of about 42,175 (244)

Optimized Ex Vivo Human Liver Slice Culture Maintains Extended Viability and Function for Hepatotoxicity Testing

Advanced Science, EarlyView.
An optimized ex vivo human liver slice culture system preserves tissue architecture, hepatocyte function, and immune‐stromal complexity for at least five days. By refining slice thickness, oxygenation, air‐liquid interface, and extracellular matrix support, the platform enables human‐relevant hepatotoxicity testing and mechanistic studies, offering a ...
Huiche Feng, Cinzia Esposito, Andrej Benjak, Matthias S. Matter, Miriam Cieri, Camilla De Carlo, Philipp Sedlaczek, Fabian Haak, Mattia Marinucci, Gabriel Fridolin Hess, Otto Kollmar, Mairene Coto‐Llerena, Luca Di Tommaso, Visar Vela, Lukas Bubendorf, Luigi M. Terracciano, Charlotte K. Y. Ng, Salvatore Piscuoglio   +17 more
wiley   +1 more source

Protein Structuromics Reveals a Loop‐Controlled Half‐Open Active Pocket Conformation Throughout Fe(II)/α‐ketoglutarate‐Dependent Dioxygenase Catalytic Cycle

Advanced Science, EarlyView.
This study reveals a conserved half‐open active pocket in Fe(II)/α‐ketoglutarate‐dependent dioxygenases through protein structuromics, distinguished by structural features comprising highly flexible loop elements. Enhanced sampling simulations‐guided mutagenesis experiments elucidated how this flexible loop regulates pocket open/closed conformations ...
Lunjie Wu, Huan Liu, Songyin Zhao, Lei Qin, Jiarui Li, Jun Wang, Zixuan Dai, Jie Gu, Yan Xu, Feiran Li, Yao Nie   +10 more
wiley   +1 more source

Harnessing Porphyrin Accumulation in Liver Cancer: Combining Genomic Data and Drug Targeting

Biomolecules
The liver, a pivotal organ in human metabolism, serves as a primary site for heme biosynthesis, alongside bone marrow. Maintaining precise control over heme production is paramount in healthy livers to meet high metabolic demands while averting potential
Swamy R. Adapa, Pravin Meshram, Abdus Sami, Rays H. Y. Jiang   +3 more
doaj   +1 more source

Conformational Snapshots of CydDC in a Native Lipid Bilayer Coupling Heme Transport to Antibiotic Resistance

Advanced Science, EarlyView.
Phylogenetic and biochemical analyses of the heme transporter CydDC reveal its functional conservation throughout bacterial evolution and demonstrate its unique asymmetric allosteric mechanism. Furthermore, impairment of CydDC function directly affects bacterial antibiotic resistance and likely compromises antibiotic efficacy through drug efflux.
Lili Yang, Changbin Zhang, Mengyuan Lyu, Yongbo Luo, Jierou Zhang, Yujiao Chen, Lintao Luo, Wen Qiao, Xiangyangpeng Li, Yu Zhou, Zhongling Wei, Yuling Xiao, Qian Niu, Juan Zhou, Guanglin He, Binwu Ying, Zhaoming Su, Hao Chen, Xiaodi Tang, Haohao Dong   +19 more
wiley   +1 more source

Bacterial TANGO2 homologs are heme-trafficking proteins that facilitate biosynthesis of cytochromes c

mBio, 2023
Heme, an essential molecule for virtually all living organisms, acts primarily as a cofactor in a large number of proteins. However, how heme is mobilized from the site of synthesis to the locations where hemoproteins are assembled remains largely ...
Sirui Han, Kailun Guo, Wei Wang, Yizhi J. Tao, Haichun Gao   +4 more
doaj   +1 more source

Light‐Activated Ruthenium Nanoclusters Reprogram the Metabolic‐Quorum Sensing Axis for Precision Periodontitis Therapy

Advanced Science, EarlyView.
Under 660 nm visible light, Ru NCs efficiently photocatalyze nitrate‐to‐ammonium conversion and modulate oral nitrogen metabolism. They precisely perturb Veillonella parvula, block its key support to Porphyromonas gingivalis, and exert an “inhibiting without killing” antivirulence effect.
Jing Zhou, Xiaolin Sun, Chengyu Liu, Yujia Shi, Meiqi Li, Meng Bo, Jingjie Zhai, Chunyan Li, Zhennan Wu, Xue Bai, Lin Wang   +10 more
wiley   +1 more source

Sappanwood extract modulates hepatic structure–function in hepatomegaly and hepcidin related iron regulatory pathways in a phenylhydrazine induced hemolytic anemia rat model relevant to thalassemia

Animal Models and Experimental Medicine, EarlyView.
Phenylhydrazine (PHZ) induces hemolytic anemia characterized by increased erythrocyte destruction and ineffective erythropoiesis, leading to hepcidin suppression through disruption of the BMP/SMAD signaling pathway. Reduced hepcidin levels enhance intestinal iron absorption and hepatic iron accumulation, leading to hepatic iron overload.
Mohammad Indra Pratama, Ratu Safitri, Desak Made Malini, Mas Rizky A. A. Syamsunarno, Mohammad Ghozali, Madihah Madihah   +5 more
wiley   +1 more source

Recombinant Production of Biliverdin IXβ and δ Isomers in the T7 Promoter Compatible Escherichia coli Nissle

Frontiers in Microbiology, 2021
The ability to obtain purified biliverdin IX (BVIX) isomers other than the commercially available BVIXα is limited due to the low yields obtained by the chemical coupled oxidation of heme.
Elizabeth A. Robinson, Nicole Frankenberg-Dinkel, Fengtian Xue, Angela Wilks   +3 more
doaj   +1 more source

The role of ClpX in erythropoietic protoporphyria

Hematology, Transfusion and Cell Therapy, 2018
Hemoglobin is an essential biological component of human physiology and its production in red blood cells relies upon proper biosynthesis of heme and globin protein.
Jared C. Whitman, Barry H. Paw, Jacky Chung   +2 more
doaj   +1 more source

Enhanced heme function and mitochondrial respiration promote the progression of lung cancer cells. [PDF]

PLoS ONE, 2013
Lung cancer is the leading cause of cancer-related mortality, and about 85% of the cases are non-small-cell lung cancer (NSCLC). Importantly, recent advance in cancer research suggests that altering cancer cell bioenergetics can provide an effective way ...
Jagmohan Hooda, Daniela Cadinu, Md Maksudul Alam, Ajit Shah, Thai M Cao, Laura A Sullivan, Rolf Brekken, Li Zhang   +7 more
doaj   +1 more source