scholarly journals POLYMERIC MICRO-GRIPPER FOR APPLYING MECHANICAL STIMULATION ON THREE-DIMENSIONAL CELL AGGREGATES

Author(s):  
Y. Zhao ◽  
W. Wang ◽  
S. Zhao ◽  
J.K. Choi ◽  
X. He
2010 ◽  
Vol 108 (2) ◽  
pp. 364-375 ◽  
Author(s):  
K. Subramanian ◽  
Y. Park ◽  
C.M. Verfaillie ◽  
W.S. Hu

1984 ◽  
Vol 106 (1) ◽  
pp. 36-41 ◽  
Author(s):  
S. Childress

Recent efforts to model the mechanical interaction of aggregates of biological cells are reviewed. Differential adhesion is discussed as a means of creating a field of stress equivalent to tension elements at interfaces between unlike cell types. Several numerical algorithms are described and applied to shortening and folding of cell sheets, three-dimensional monolayers, and two-dimensional cell aggregates.


Biomaterials ◽  
2013 ◽  
Vol 34 (8) ◽  
pp. 1995-2004 ◽  
Author(s):  
Ding-Yuan Chen ◽  
Hao-Ji Wei ◽  
Kun-Ju Lin ◽  
Chieh-Cheng Huang ◽  
Chung-Chi Wang ◽  
...  

Lab on a Chip ◽  
2018 ◽  
Vol 18 (1) ◽  
pp. 179-189 ◽  
Author(s):  
Andreas R. Thomsen ◽  
Christine Aldrian ◽  
Peter Bronsert ◽  
Yi Thomann ◽  
Norbert Nanko ◽  
...  

Miniaturised conical measures for cell aggregates.


2019 ◽  
Vol 48 (3) ◽  
pp. 968-979
Author(s):  
Yan Liang ◽  
Alexander R. A. Szojka ◽  
Enaam Idrees ◽  
Melanie Kunze ◽  
Aillette Mulet-Sierra ◽  
...  

Cancers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 395
Author(s):  
Elizabeth Dunn ◽  
Kenny Chitcholtan ◽  
Peter Sykes ◽  
Ashley Garrill

Most ovarian cancer patients are diagnosed with advanced stage disease, which becomes unresponsive to chemotherapeutic treatments. The PI3K/AKT/mTOR and the RAS/RAF/MEK/ERK kinase signaling pathways are attractive targets for potential therapeutic inhibitors, due to the high frequency of mutations to PTEN, PIK3CA, KRAS and BRAF in several ovarian cancer subtypes. However, monotherapies targeting one of these pathways have shown modest effects in clinical trials. This limited efficacy of the agents could be due to upregulation and increased signaling via the adjacent alternative pathway. In this study, the efficacy of combined PI3K/mTOR (BEZ235) and ERK inhibition (SCH772984) was investigated in four human ovarian cancer cell lines, grown as monolayer and three-dimensional cell aggregates. The inhibitor combination reduced cellular proliferation in a synergistic manner in OV-90 and OVCAR8 monolayers and in OV-90, OVCAR5 and SKOV3 aggregates. Sensitivity to the inhibitors was reduced in three-dimensional cell aggregates in comparison to monolayers. OV-90 cells cultured in large spheroids were sensitive to the inhibitors and displayed a robust synergistic antiproliferative response to the inhibitor combination. In contrast, OVCAR8 spheroids were resistant to the inhibitors. These findings suggest that combined PI3K/mTOR and ERK inhibition could be a useful strategy for overcoming treatment resistance in ovarian cancer and warrants further preclinical investigation. Additionally, in some cell lines the use of different three-dimensional models can influence cell line sensitivity to PI3K/mTOR and RAS/RAF/MEK/ERK pathway inhibitors.


Open Medicine ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. 249-253
Author(s):  
Marta Bochynska-Czyz ◽  
Patrycja Redkiewicz ◽  
Hanna Kozlowska ◽  
Joanna Matalinska ◽  
Marek Konop ◽  
...  

AbstractThree-dimensional (3D) cell cultures were created with the use of fur keratin associated proteins (F-KAPs) as scaffolds. The procedure of preparation F-KAP involves combinations of chemical activation and enzymatic digestion. The best result in porosity and heterogeneity of F-KAP surface was received during pepsin digestion. The F-KAP had a stable structure, no changes were observed after heat treatment, shaking and washing. The 0.15-0.5 mm fraction had positive effect for formation of 3D scaffolds and cell culturing. Living rat mesenchymal cells on the F-KAP with no abnormal morphology were observed by SEM during 32 days of cell culturing.


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