Results 71 to 80 of about 349,615 (316)

The critical role of DNA damage‐inducible transcript 4 (DDIT4) in stemness character of leukemia cells and leukemia initiation

Molecular Oncology, EarlyView.
Stemness properties, including quiescence, self‐renewal, and chemoresistance, are closely associated with leukemia relapse. Here, we demonstrate that DNA damage‐inducible transcript 4 (DDIT4) is induced in the hypoxic bone marrow niche and is essential for maintaining the stemness of AML1‐ETO9a leukemia cells.
Yishuang Li, Zhijie Cao, Haiyan Xing, Zhenya Xue, Wenbing Liu, Jiayuan Chen, Yihan Mei, Runxia Gu, Hui Wei, Shaowei Qiu, Min Wang, Qing Rao, Jianxiang Wang   +12 more
wiley   +1 more source

Cell-line dependent effects of hypoxia prior to irradiation in squamous cell carcinoma lines

Clinical and Translational Radiation Oncology, 2017
Purpose: To assess the impact of hypoxia exposure on cellular radiation sensitivity and survival of tumor cells with diverse intrinsic radiation sensitivity under normoxic conditions. Materials and methods: Three squamous cell carcinoma (SCC) cell lines,
Franziska Hauth, Mahmoud Toulany, Daniel Zips, Apostolos Menegakis   +3 more
doaj   +1 more source

Single‐cell transcriptomics redefines focal neuroendocrine differentiation as a distinct prostate cancer pathology

Molecular Oncology, EarlyView.
Single‐cell transcriptomics of prostate cancer patient‐derived xenografts reveals distinct features of neuroendocrine (NE) subtypes. Tumours with focal NE differentiation (NED) share transcriptional programmes with adenocarcinoma, differing from large and small cell neuroendocrine prostate cancer (NEPC). Our work defines the molecular landscape of NEPC,
Rosalia Quezada Urban, Shivakumar Keerthikumar, Ashlee Clark, Hong Wang, Belinda Phipson, Andrew Bakshi, Andrew Ryan, Heather Thorne, Renea A. Taylor, Mitchell G. Lawrence, Gail P. Risbridger, Roxanne Toivanen, David L. Goode   +12 more
wiley   +1 more source

Responses of glomus cells to hypoxia and acidosis

The Journal of Physiology, 2013
I read with interest the publication by Lu et al. (2013) in which the authors claim to have found evidence for uncoupling and reciprocity in the responses of carotid body glomus cells to hypoxic and acidic stimuli. By measuring changes in intracellular calcium as an index of chemosensitivity, the authors argue that cells that are highly sensitive to ...
openaire   +5 more sources

Identification of Hypoxia‐ALCAMhigh Macrophage‐ Exhausted T Cell Axis in Tumor Microenvironment Remodeling for Immunotherapy Resistance

Advanced Science
Although hypoxia is known to be associated with immune resistance, the adaptability to hypoxia by different cell populations in the tumor microenvironment and the underlying mechanisms remain elusive.
Zhenzhen Xun, Huanran Zhou, Mingyi Shen, Yao Liu, Chengcao Sun, Yanhua Du, Zhou Jiang, Liuqing Yang, Qing Zhang, Chunru Lin, Qingsong Hu, Youqiong Ye, Leng Han   +12 more
doaj   +1 more source

A facile in vitro platform to study cancer cell dormancy under hypoxic microenvironments using CoCl2

Journal of Biological Engineering, 2018
Background While hypoxia has been well-studied in various tumor microenvironments, its role in cancer cell dormancy is poorly understood, in part due to a lack of well-established in vitro and in vivo models. Hypoxic conditions under conventional hypoxia
Hak Rae Lee, Faith Leslie, Samira M. Azarin   +2 more
doaj   +1 more source

Decrypting cancer's spatial code: from single cells to tissue niches

Molecular Oncology, EarlyView.
Spatial transcriptomics maps gene activity across tissues, offering powerful insights into how cancer cells are organised, switch states and interact with their surroundings. This review outlines emerging computational, artificial intelligence (AI) and geospatial approaches to define cell states, uncover tumour niches and integrate spatial data with ...
Cenk Celik, Shi Pan, Eloise Withnell, Hou Wang Lam, Maria Secrier   +4 more
wiley   +1 more source

The impact of hypoxia on B cells in COVID-19

EBioMedicine, 2022
Summary: Background: Prominent early features of COVID-19 include severe, often clinically silent, hypoxia and a pronounced reduction in B cells, the latter important in defence against SARS-CoV-2.
Prasanti Kotagiri, Federica Mescia, Aimee L. Hanson, Lorinda Turner, Laura Bergamaschi, Ana Peñalver, Nathan Richoz, Stephen D. Moore, Brian M. Ortmann, Benjamin J. Dunmore, Michael D. Morgan, Zewen Kelvin Tuong, Berthold Göttgens, Mark Toshner, Christoph Hess, Patrick. H. Maxwell, Menna. R. Clatworthy, James A. Nathan, John R. Bradley, Paul A. Lyons, Natalie Burrows, Kenneth G.C. Smith   +21 more
doaj  

Hypoxia regulates human mast cell adhesion to fibronectin via the PI3K/AKT signaling pathway

Cell Adhesion & Migration, 2020
A decrease in oxygen concentration is a hallmark of inflammatory reactions resulting from infection or homeostasis disorders. Mast cells interact with extracellular matrix and other cells by adhesion receptors.
Joanna Pastwińska, Aurelia Walczak-Drzewiecka, Magdalena Łukasiak, Marcin Ratajewski, Jarosław Dastych   +4 more
doaj   +1 more source

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

FEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik, Deniz Bakkalci, Alexander J. MacRobert, Umber Cheema   +3 more
wiley   +1 more source