scholarly journals A microfluidic device for continuous cancer cell culture and passage with hydrodynamic forces

Lab on a Chip ◽  
2010 ◽  
Vol 10 (14) ◽  
pp. 1807 ◽  
Author(s):  
Liyu Liu ◽  
Kevin Loutherback ◽  
David Liao ◽  
David Yeater ◽  
Guillaume Lambert ◽  
...  
Keyword(s):  
Cell Culture ◽  
Cancer Cell ◽  
Microfluidic Device ◽  
Hydrodynamic Forces

Platelet-Rich and Platelet-Poor Plasma Might Play Supportive Roles in Cancer Cell Culture: A Replacement for Fetal Bovine Serum?

2021 ◽  
Vol 21 ◽  
Author(s):  
Mehdi Talebi ◽  
Mousa Vatanmakanian ◽  
Ali Mirzaei ◽  
Yaghoub Barfar ◽  
Maryam Hemmatzadeh ◽  
...  
Keyword(s):  
Cell Culture ◽  
Cell Growth ◽  
Cancer Cell ◽  
Human Cancer ◽  
High Price ◽  
Dependent Manner ◽  
Platelet Poor Plasma ◽  
Protein Levels ◽  
Healthy Donors ◽  
Regulatory Functions

Background: Platelet-rich (PRP) and Platelet-poor plasma (PPP) are widely used in research and clinical platforms mainly due to their capacities to enhance cell growth. Although short half-life (5 days) and the high price of platelet products pose challenges regarding their usage, they maintain the growth regulatory functions for weeks. Thus, we aimed to assess the supplementary values of these products in human CCRF-CEM cancer cells. Mechanistically, we also checked if the PRP/PPP treatment enhances YKL-40 expression as a known protein regulating cell growth. Methods: The PRP/PPP was prepared from healthy donors using manual stepwise centrifugation and phase separation. The viability of the cells treated with gradient PRP/PPP concentrations (2, 5, 10, and 15%) was measured by the MTT assay. The YKL-40 mRNA and protein levels were assessed using qRT-PCR and western blotting. The data were compared to FBS-treated cells. Result: Our findings revealed that the cells treated by PRP/PPP not only were morphologically comparable to those treated by FBS but also, they showed greater viability at the concentrations of 10 and 15%. Moreover, it was shown that PRP/PPP induce cell culture support, at least in part, via inducing YKL-40 expression at both mRNA and protein levels in a time- and dose-dependent manner. Conclusion: Collectively, by showing cell culture support comparable to FBS, the PRP/PPP might be used as good candidates to supplement the cancer cell culture and overcome concerns regarding the use of FBS as a non-human source in human cancer research.

scholarly journals Self-Assembling Polypeptide Hydrogels as a Platform to Recapitulate the Tumor Microenvironment

Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3286
Author(s):  
Dariusz Lachowski ◽  
Carlos Matellan ◽  
Ernesto Cortes ◽  
Alberto Saiani ◽  
Aline F. Miller ◽  
...  
Keyword(s):  
Cell Culture ◽  
Tumor Microenvironment ◽  
Cancer Cell ◽  
Critical Role ◽  
Hypoxia Inducible Factor ◽  
Pancreatic Cancer Cell Line ◽  
Cancer Cell Line ◽  
Culture Systems ◽  
A Cell

The tumor microenvironment plays a critical role in modulating cancer cell migration, metabolism, and malignancy, thus, highlighting the need to develop in vitro culture systems that can recapitulate its abnormal properties. While a variety of stiffness-tunable biomaterials, reviewed here, have been developed to mimic the rigidity of the tumor extracellular matrix, culture systems that can recapitulate the broader extracellular context of the tumor microenvironment (including pH and temperature) remain comparably unexplored, partially due to the difficulty in independently tuning these parameters. Here, we investigate a self-assembled polypeptide network hydrogel as a cell culture platform and demonstrate that the culture parameters, including the substrate stiffness, extracellular pH and temperature, can be independently controlled. We then use this biomaterial as a cell culture substrate to assess the effect of stiffness, pH and temperature on Suit2 cells, a pancreatic cancer cell line, and demonstrate that these microenvironmental factors can regulate two critical transcription factors in cancer: yes-associated protein 1 (YAP) and hypoxia inducible factor (HIF-1A).

PDMS micropillar-based microchip for efficient cancer cell capture

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 52161-52166 ◽  
Author(s):  
Jingrong Xiao ◽  
Weiqi He ◽  
Zhengtao Zhang ◽  
Weiying Zhang ◽  
Yiping Cao ◽  
...  
Keyword(s):  
Cancer Cell ◽  
Microfluidic Device ◽  
Cell Capture

We introduce a micropillar-based microfluidic device for efficient and rapid cancer cell capture.

Three‐dimensional cancer cell culture in high‐yield multiscale scaffolds by shear spinning

2018 ◽  
Vol 35 (2) ◽  
pp. e2750 ◽  
Author(s):  
Ahmed A. Ahmed ◽  
CJ Luo ◽  
Sandra Perez‐Garrido ◽  
Connor R. Browse ◽  
Christopher Thrasivoulou ◽  
...  
Keyword(s):  
Cell Culture ◽  
Cancer Cell ◽  
Three Dimensional ◽  
High Yield ◽  
Shear Spinning

scholarly journals The Combined Effects of Co-Culture and Substrate Mechanics on 3D Tumor Spheroid Formation within Microgels Prepared via Flow-Focusing Microfluidic Fabrication

Pharmaceutics ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 229 ◽  
Author(s):  
Dongjin Lee ◽  
Chaenyung Cha
Keyword(s):  
Mechanical Properties ◽  
Cell Culture ◽  
Microfluidic Device ◽  
3D Cell Culture ◽  
Breast Adenocarcinoma ◽  
Adherent Cell ◽  
Flow Focusing ◽  
Spheroid Formation ◽  
3D Scaffold ◽  
Tumor Spheroids

Tumor spheroids are considered a valuable three dimensional (3D) tissue model to study various aspects of tumor physiology for biomedical applications such as tissue engineering and drug screening as well as basic scientific endeavors, as several cell types can efficiently form spheroids by themselves in both suspension and adherent cell cultures. However, it is more desirable to utilize a 3D scaffold with tunable properties to create more physiologically relevant tumor spheroids as well as optimize their formation. In this study, bioactive spherical microgels supporting 3D cell culture are fabricated by a flow-focusing microfluidic device. Uniform-sized aqueous droplets of gel precursor solution dispersed with cells generated by the microfluidic device are photocrosslinked to fabricate cell-laden microgels. Their mechanical properties are controlled by the concentration of gel-forming polymer. Using breast adenocarcinoma cells, MCF-7, the effect of mechanical properties of microgels on their proliferation and the eventual spheroid formation was explored. Furthermore, the tumor cells are co-cultured with macrophages of fibroblasts, which are known to play a prominent role in tumor physiology, within the microgels to explore their role in spheroid formation. Taken together, the results from this study provide the design strategy for creating tumor spheroids utilizing mechanically-tunable microgels as 3D cell culture platform.

scholarly journals The investigation of the changes in the surface glycoconjugates using two different spheroid models of breast cancer cells and availability assessment of these spheroid models for rapid diagnosis

2021 ◽  
Vol 38 (3) ◽  
pp. 266-271
Author(s):  
Yosun MATER ◽  
Günnur DEMİRCAN
Keyword(s):  
Breast Cancer ◽  
Cell Culture ◽  
Sialic Acid ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Wheat Germ Agglutinin ◽  
Wheat Germ ◽  
Sialic Acids ◽  
Maackia Amurensis ◽  
Maackia Amurensis Lectin

The importance of early cancer diagnosis has led to development of many different diagnostic methods. In this context, the studies investigating the presence and amount of sugar residues to use as indicators in the identification of cancer cell type have become prominent. In the present study, sialic acids found on the membrane surfaces of ER (+) MCF-7 and ER (-) MDA-MB-231 breast cancer cell lines were labeled using three-dimensional (3D) cell culture (Spheroid) model as the closest method to the patient sample, thus its natural environment, among the cell culture methods. These sugar units that play a role in regulation of important immune characteristics such as recognition, binding and metastasis were made visualizable by applying fluorescent-labeled lectins such as FITC-(Wheat Germ Agglutinin) specifically binding to sialic acid units (GlcNAc, Neu5Ac) including particularly ß-GlcNAc and FITC-(Maackia Amurensis-Lectin-1) specifically binding to Galß4GlcNAc type sialic acids. These glycan units were specifically labeled with FITC-(Maackia Amurensis-Lectin-1) and FITC- (Wheat Germ Agglutinin) and radiation intensities were analyzed relatively. The two different breast cancer cell cultures were compared with respect to change in the amounts of sialic acid residues containing α-2,3- and α-2,6 bonds using fluorescent-labeled lectins. In the present study, we have performed a precise, accurate and rapid determination of the sugar content in the different breast cancer cell surface lines by means of fluorescent-labeled lectins and carried out a relative comparison between the micrographs.

scholarly journals The Effect of Lycopene on Cancer Cell Apoptosis by Caspase-9 Concentration Measurement in Indonesian Human Prostate Cancer Cell Culture

2020 ◽  
Vol 8 (B) ◽  
pp. 952-956
Author(s):  
Tjahjodjati Tjahjodjati ◽  
Suwandi Sugandi ◽  
Rainy Umbas ◽  
Mieke Satari
Keyword(s):  
Prostate Cancer ◽  
Cell Culture ◽  
Cancer Cell ◽  
Prostate Cancer Cell ◽  
Human Prostate ◽  
Human Prostate Cancer ◽  
Caspase 9 ◽  
Human Prostate Cancer Cell ◽  
Treatment Groups ◽  
Significant Difference

BACKGROUND: Lycopene is an antioxidant that mostly found in daily ingredients such as tomatoes. Several studies have shown the lycopene potential in preventing prostate cancer. Nevertheless, the clinical use of lycopene as adjunctive therapy for prostate cancer is still under debate. AIM: The objective of the study was to determine the effect of lycopene on human prostate cancer cell culture growth by measuring caspase-9 concentration as a marker of the intrinsic pathway of apoptosis in cells. METHODS: This study was conducted on Indonesian prostate cancer cell culture from a patient with Gleason score 6, divided into 5 subgroups: 2 control groups and 3 treatment groups that were given 1 μM, 2 μM, and 4 μM of lycopene. Measurement of caspase-9 level was performed using enhanced chemiluminescence at 24, 28, and 72 h after lycopene addition in treatment groups. A comparative analysis was performed by two-way ANOVA. RESULTS: The result showed that there was a significant difference of mean caspase-9 levels in the provision of various concentrations of lycopene and time of observation (p < 0.05). Increased of mean caspase-9 levels started at 2 μM dose of lycopene at 48 h and 4 μM at 24 h (p < 0.05) and continue to rise at 72 h, but caspase-9 was not detected at 1 μM dose in every observation. CONCLUSION: There was a significant difference of mean caspase-9 levels in the provision of various concentrations of lycopene and time of observation.

NanoPADs and nanoFACEs: an optically transparent nanopaper-based device for biomedical applications

Lab on a Chip ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 3322-3333
Author(s):  
Binbin Ying ◽  
Siwan Park ◽  
Longyan Chen ◽  
Xianke Dong ◽  
Edmond W. K. Young ◽  
...  
Keyword(s):  
Cell Culture ◽  
Microfluidic Device ◽  
Biomedical Applications ◽  
Adherent Cell ◽  
Optically Transparent ◽  
Adherent Cell Culture

A highly transparent nanopaper-based microfluidic device for chemical/biosensing and cell culture, which is branded as nanopaper-based analytical devices (nanoPADs) and nanofibrillated adherent cell-culture platforms (nanoFACEs).

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