Results 101 to 110 of about 1,369,656 (306)

Investigating Dynamic Molecular Events in Melanoma Cell Nucleus During Photodynamic Therapy by SERS

Frontiers in Chemistry, 2019
Photodynamic therapy (PDT) involves the uptake of photosensitizers by cancer cells and the irradiation of a light with a specific wavelength to trigger a series of photochemical reactions based on the generation of reactive oxygen, leading to cancer cell
Jing Yue, Lijia Liang, Yanting Shen, Xin Guan, Jing Zhang, Zhiyuan Li, Rong Deng, Shuping Xu, Chongyang Liang, Wei Shi, Weiqing Xu   +10 more
doaj   +1 more source

Robust Segmentation of Cell Nuclei in 3-D Microscopy Images [PDF]

arXiv, 2021
Accurate segmentation of 3-D cell nuclei in microscopy images is essential for the study of nuclear organization, gene expression, and cell morphodynamics. Current image segmentation methods are challenged by the complexity and variability of microscopy images and often over-segment or under-segment the cell nuclei.
arxiv  

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

FEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt, Manuela Gellert, Finja Zelms, Sander Bekeschus, Christopher Horst Lillig   +4 more
wiley   +1 more source

Systems theory of Smad signaling

, 2006
Transforming Growth Factor-beta (TGF-beta) signalling is an important regulator of cellular growth and differentiation. The principal intracellular mediators of TGF-beta signalling are the Smad proteins, which upon TGF-beta stimulation accumulate in the ...
Alves, Alves, Barkai, Battogtokh, Brightman, Brown, Brown, Chacko, Chen, Colland, Conery, D.C. Clarke, Derynck, Dong, Fink, Funaba, Fung, Gardner, Hager, Haugh, Hoffmann, Huang, Inman, Inman, Jayaraman, Kawabata, Kholodenko, Kim, Lagna, Lander, Lee, Liu, M.D. Betterton, Massague, Massague, Massague, Nakao, Nakao, Nicolas, Nicolas, Park, Pasche, Pierreux, Poncelet, Remy, Schmierer, Schoeberl, Sedaghat, Shi, Shi, Subramanian, ten Dijke, Tewari, Tian, Tsukazaki, Vilar, von Dassow, Wu, X. Liu, Xu, Xu, Yamada, Zhang, Zi   +63 more
core   +1 more source

Thermal instability of cell nuclei

New Journal of Physics, 2014
DNA is known to be a mechanically and thermally stable structure. In its double stranded form it is densely packed within the cell nucleus and is thermo-resistant up to $70\:^\circ {\rm{C}}$ .
Enrico Warmt, Tobias R Kießling, Roland Stange, Anatol W Fritsch, Mareike Zink, Josef A Käs   +5 more
doaj   +1 more source

Unsupervised high-throughput segmentation of cells and cell nuclei in quantitative phase images [PDF]

arXiv, 2023
In the effort to aid cytologic diagnostics by establishing automatic single cell screening using high throughput digital holographic microscopy for clinical studies thousands of images and millions of cells are captured. The bottleneck lies in an automatic, fast, and unsupervised segmentation technique that does not limit the types of cells which might
arxiv  

Spandrels of the cell nucleus

Current Opinion in Cell Biology
S.J. Gould and R. Lewontin in their famous "Spandrels paper" (1979) argued that many anatomical elements arise in evolution not due to their "current utility" but rather due to other "reasons for origin", such as other developmental processes, physical constraints and mechanical forces.
Irina Solovei, Leonid Mirny
openaire   +2 more sources

Flow‐based immunomagnetic enrichment of circulating tumor cells from diagnostic leukapheresis product

Molecular Oncology, EarlyView.
The number of circulating tumor cells obtained from prostate cancer patients was increased approximately 5‐fold compared to regular CellSearch when processing 2 mL diagnostic leukapheresis material aliquots and increased by 44‐fold when processing 20 mL DLA aliquots using the flow enrichment target capture Halbach‐array.
Michiel Stevens, Anouk Mentink, Frank A. W. Coumans, Eshwari Dathathri, Khrystany T. Isebia, Jaco Kraan, Ronald de Wit, John W. M. Martens, Leon W. M. M. Terstappen   +8 more
wiley   +1 more source

Communication and quorum sensing in non-living mimics of eukaryotic cells. [PDF]

, 2018
Cells in tissues or biofilms communicate with one another through chemical and mechanical signals to coordinate collective behaviors. Non-living cell mimics provide simplified models of natural systems; however, it has remained challenging to implement ...
Chaggan, Cynthia, Devaraj, Neal K, Niederholtmeyer, Henrike   +2 more
core   +2 more sources

Identification of Extrachromosomal Linear microDNAs Interacted with microRNAs in the Cell Nuclei

Cells, 2019
Extrachromosomal DNA exists in two forms: Covalently closed circular and linear. While diverse types of circular extrachromosomal DNA have been identified with validated in vivo functions, little is known about linear extrachromosomal DNA. In this study,
Teng Sun, Kun Wang, Cuiyun Liu, Yin Wang, Jianxun Wang, Peifeng Li   +5 more
doaj   +1 more source