Results 61 to 70 of about 134,478 (313)

Positive periodic solutions for systems of impulsive delay differential equations [PDF]

arXiv, 2021
A class of periodic differential $n$-dimensional systems with patch structure with (possibly infinite) delay and nonlinear impulses is considered. These systems incorporate very general nonlinearities and impulses whose signs may vary. Criteria for the existence of at least one positive periodic solution are presented, extending and improving previous ...
arxiv  

Identification of functional and diverse circulating cancer‐associated fibroblasts in metastatic castration‐naïve prostate cancer patients

Molecular Oncology, EarlyView.
Cancer‐associated fibroblasts (CAFs) promote cancer growth, invasion (metastasis), and drug resistance. Here, we identified functional and diverse circulating CAFs (cCAFs) in patients with metastatic prostate cancer (mPCa). cCAFs were found in higher numbers and were functional and diverse in mPCa patients versus healthy individuals, suggesting their ...
Richell Booijink, Leon W. M. M. Terstappen, Eshwari Dathathri, Khrystany Isebia, Jaco Kraan, John Martens, Ruchi Bansal   +6 more
wiley   +1 more source

M-Sec facilitates intercellular transmission of HIV-1 through multiple mechanisms

Retrovirology, 2020
Background HIV-1 promotes the formation of tunneling nanotubes (TNTs) that connect distant cells, aiding cell-to-cell viral transmission between macrophages.
Sameh Lotfi, Hesham Nasser, Osamu Noyori, Masateru Hiyoshi, Hiroaki Takeuchi, Yoshio Koyanagi, Shinya Suzu   +6 more
doaj   +1 more source

Oscillations in a white blood cell production model with multiple differentiation stages [PDF]

J Math Biol. 2019, 2018
In this work we prove occurrence of a super-critical Hopf bifurcation in a model of white blood cell formation structured by three maturation stages. We provide an explicit analytical expression for the bifurcation point depending on model parameters.
arxiv   +1 more source

A comparative study of circulating tumor cell isolation and enumeration technologies in lung cancer

Molecular Oncology, EarlyView.
Lung cancer cells were spiked into donor blood to evaluate the recovery rates of the following circulating tumor cell (CTC) enrichment technologies: CellMag™, EasySep™, RosetteSep™, Parsortix® PR1, and Parsortix® Prototype systems. Each method's advantages and disadvantages are described.
Volga M Saini, Ezgi Oner, Mark P. Ward, Sinead Hurley, Brian David Henderson, Faye Lewis, Stephen P. Finn, Gerard J. Fitzmaurice, John J. O'Leary, Sharon O'Toole, Lorraine O'Driscoll, Kathy Gately   +11 more
wiley   +1 more source

The RUNX1b Isoform Defines Hemogenic Competency in Developing Human Endothelial Cells

Frontiers in Cell and Developmental Biology, 2021
The transcription factor RUNX1 is a master regulator of blood cell specification. During embryogenesis, hematopoietic progenitors are initially generated from hemogenic endothelium through an endothelium-to-hematopoietic transition controlled by RUNX1 ...
Sara Menegatti, Sara Menegatti, Bethany Potts, Eva Garcia-Alegria, Eva Garcia-Alegria, Roberto Paredes, Michael Lie-A-Ling, Georges Lacaud, Valerie Kouskoff   +8 more
doaj   +1 more source

A PDMP to model the stochastic influence of quiescence dynamics in blood cancers [PDF]

arXiv, 2023
In this article, we will see a new approach to study the impact of a small microscopic population of cancer cells on a macroscopic population of healthy cells, with an example inspired by pathological hematopoiesis. Hematopoiesis is the biological phenomenon of blood cells production by differentiation of cells called hematopoietic stem cells (HSCs ...
arxiv  

Cellular liquid biopsy provides unique chances for disease monitoring, preclinical model generation and therapy adjustment in rare salivary gland cancer patients

Molecular Oncology, EarlyView.
We quantified and cultured circulating tumor cells (CTCs) of 62 patients with various cancer types and generated CTC‐derived tumoroid models from two salivary gland cancer patients. Cellular liquid biopsy‐derived information enabled molecular genetic assessment of systemic disease heterogeneity and functional testing for therapy selection in both ...
Nataša Stojanović Gužvić, Florian Lüke, Steffi Treitschke, Andrea Coluccio, Martin Hoffmann, Giancarlo Feliciello, Adithi Ravikumar Varadarajan, Xin Lu, Kathrin Weidele, Catherine Botteron, Silvia Materna–Reichelt, Felix Keil, Katja Evert, Florian Weber, Thomas Schamberger, Michael Althammer, Jirka Grosse, Dirk Hellwig, Christian Schulz, Stephan Seitz, Peter Ugocsai, Anke Schlenska‐Lange, Roman Mayr, Ulrich Kaiser, Wolfgang Dietmaier, Bernhard Polzer, Jens Warfsmann, Kamran Honarnejad, Tobias Pukrop, Daniel Heudobler, Christoph A. Klein, Christian Werno   +31 more
wiley   +1 more source

Extracellular Vesicles Derived From Adult and Fetal Bone Marrow Mesenchymal Stromal Cells Differentially Promote ex vivo Expansion of Hematopoietic Stem and Progenitor Cells

Frontiers in Bioengineering and Biotechnology, 2021
Recently, we and others have illustrated that extracellular vesicles (EVs) have the potential to support hematopoietic stem and progenitor cell (HSPC) expansion; however, the mechanism and processes responsible for the intercellular communication by EVs ...
Corina A. Ghebes, Jess Morhayim, Marion Kleijer, Merve Koroglu, Stefan J. Erkeland, Remco Hoogenboezem, Eric Bindels, Floris P. J. van Alphen, Maartje van den Biggelaar, Martijn A. Nolte, Martijn A. Nolte, Bram C. J. van der Eerden, Eric Braakman, Carlijn Voermans, Jeroen van de Peppel   +14 more
doaj   +1 more source

SRSF2 Is Essential For Hematopoiesis and Its Mutations Dysregulate Alternative RNA Splicing In MDS [PDF]

, 2013
Myelodysplastic syndromes (MDS) are a group of neoplasms that are ineffective in generating multiple lineages of myeloid cells and have various risks to progress to acute myeloid leukemia.
Chen, Liang, Dekelver, Russell, Fu, Xiang-Dong, Heuser, Michael, Komeno, Yukiko, Lin, Leo, Monterroza, Dora D, Qiu, Jinsong, Thol, Felicitas, Xu, YiJun, Zhang, Dong-Er   +10 more
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