Results 51 to 60 of about 11,485 (176)

Investigating the Connection Between Endogenous Heme Accumulation and COX2 Activity in Cancer Cells

Frontiers in Oncology, 2019
Heme, an iron-containing porphyrin, is fundamental for a variety of functions in cell homeostasis. Nevertheless, recent data indicate that dysregulation of heme metabolism might promote tumorigenesis.
Francesca Destefanis, Veronica Fiorito, Fiorella Altruda, Emanuela Tolosano   +3 more
doaj   +1 more source

Transmission Electron Microscopy to Follow Ultrastructural Modifications of Erythroblasts Upon ex vivo Human Erythropoiesis

Frontiers in Physiology, 2022
Throughout mammal erythroid differentiation, erythroblasts undergo enucleation and organelle clearance becoming mature red blood cell. Organelles are cleared by autophagic pathways non-specifically targeting organelles and cytosolic content or by ...
Alice Dussouchaud, Julieta Jacob, Charles Secq, Jean-Marc Verbavatz, Martina Moras, Jérôme Larghero, Claudio M. Fader, Mariano A. Ostuni, Sophie D. Lefevre   +8 more
doaj   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

Advanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj, Xilal Y. Rima, Kim T. Nguyen, Courtney Culkins, Nana Boateng, Jacob Doon‐Ralls, Alejandro Bresolin, Xin Huang, Hong Li, Vahedi Amid, Ajeet Pal Singh, Dharti Shantaram, Anastasiia Amari, Mangesh D. Hade, Nicholas R. Merriam, Zachary D. Schultz, Scott Q. Harper, Nizar Y. Saad, Setty M. Magaña, Willa A. Hsueh, Rachel E. Kopec, Blaise R. Kimmel, Andre F. Palmer, Eduardo Reátegui   +23 more
wiley   +1 more source

Unde venisti PGRMC? Grand-Scale Biology from Early Eukaryotes and Eumetazoan Animal Origins

Frontiers in Bioscience-Landmark, 2022
The title usage of Unde venisti ‘from where have you come’ is from a now dead language (Latin) that foundationally influenced modern English (not the major influence, but an essential formative one).
Michael A. Cahill
doaj   +1 more source

Mitochondria and Neuromast Tagging With Fluorescent Gallium‐Triapine Analogues: In Cellulo MP FLIM and Zebrafish Live Imaging

Advanced Science, EarlyView.
Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green, Michael W. Jones, Merissa Saleem, Haobo Ge, Melita Tvardauskaite, Julia Dudzic, Fernando Cortezon‐Tamarit, Rory L. Arrowsmith, Charareh Pourzand, Gabriele Kociock‐Kohn, Nicholas H. Rees, Jonathan R. Dilworth, Stephen Faulkner, Stanley W. Botchway, David Gurevich, Sofia I. Pascu   +15 more
wiley   +1 more source

HDP-a novel heme detoxification protein from the malaria parasite.

PLoS Pathogens, 2008
When malaria parasites infect host red blood cells (RBC) and proteolyze hemoglobin, a unique, albeit poorly understood parasite-specific mechanism, detoxifies released heme into hemozoin (Hz).
Dewal Jani, Rana Nagarkatti, Wandy Beatty, Ross Angel, Carla Slebodnick, John Andersen, Sanjai Kumar, Dharmendar Rathore   +7 more
doaj   +1 more source

Human Dental Pulp Stem Cell Secretome Restores Ischemic Stroke–Impaired Motor and Cognitive Functions by Reprogramming Redox and Inflammatory Signaling

Advanced Science, EarlyView.
Human dental pulp stem cell secretome emerges as a cell‐free therapeutic strategy for ischemic stroke by reprogramming redox and inflammatory signaling. hDPSC secretome‐derived antioxidant and immunomodulatory factors suppress the TLR4–NOX–ROS–NF‐κB axis, reduce microglial inflammatory responses and apoptosis, and promote neurogenesis, angiogenesis ...
Kyung‐Joo Seong, Sehoon Park, Sun‐Woong Bae, Daseul Kim, Jin Ho Lee, Won‐Seok Choi, Zee‐Yong Park, Ji‐Yeon Jung, Won‐Jae Kim   +8 more
wiley   +1 more source

Role of Heme in Intracellular Trafficking of Thyroperoxidase and Involvement of H2O2 Generated at the Apical Surface of Thyroid Cells in Autocatalytic Covalent Heme Binding [PDF]

Journal of Biological Chemistry, 1999
Thyroperoxidase (TPO) is a glycosylated hemoprotein that plays a key role in thyroid hormone synthesis. We previously showed that in CHO cells expressing human TPO (hTPO) only 2% of synthesized hTPO reaches the cell surface. Herein, we investigated the role of heme moiety insertion in the exit of hTPO from the endoplasmic reticulum. Peroxidase activity
Fayadat, Laurence, Niccoli-Sire, Patricia, Lanet, Jeanne, Franc, Jean-Louis   +3 more
openaire   +3 more sources

Helicobacter pylori and Campylobacter jejuni bacterial holocytochrome c synthase structure-function analysis reveals conservation of heme binding

Communications Biology
Heme trafficking is essential for cellular function, yet mechanisms of transport and/or heme interaction are not well defined. The System I and System II bacterial cytochrome c biogenesis pathways are developing into model systems for heme trafficking ...
Tania Yeasmin, Susan C. Carroll, David J. Hawtof, Molly C. Sutherland   +3 more
doaj   +1 more source