NMDA-induced injury of mouse organotypic hippocampal slice cultures triggers delayed neuroblast proliferation in the dentate gyrus: An in vitro model for the study of neural precursor cell proliferation

2010 ◽  
Vol 1359 ◽  
pp. 22-32 ◽  
Author(s):  
Eva C. Bunk ◽  
Hans-Georg König ◽  
Helena P. Bonner ◽  
Brian P. Kirby ◽  
Jochen H.M. Prehn
Keyword(s):  
Cell Proliferation ◽  
In Vitro Model ◽  
Hippocampal Slice ◽  
Precursor Cell ◽  
Neural Precursor ◽  
Neural Precursor Cell ◽  
Vitro Model ◽  
Neuroblast Proliferation ◽  
Organotypic Hippocampal Slice Cultures

scholarly journals CAFs affect the proliferation and treatment response of head and neck cancer spheroids during co-culturing in a unique in vitro model

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Mustafa Magan ◽  
Emilia Wiechec ◽  
Karin Roberg
Keyword(s):  
Cell Proliferation ◽  
Tumor Cell ◽  
Head And Neck ◽  
Treatment Response ◽  
Tumor Cells ◽  
In Vitro Model ◽  
Tumor Spheroids ◽  
Vitro Model ◽  
The Impact

Abstract Background Head and neck squamous cell carcinoma (HNSCC) is a heterogeneous group of tumors for which the overall survival rate worldwide is around 60%. The tumor microenvironment, including cancer-associated fibroblasts (CAFs), is believed to affect the treatment response and migration of HNSCC. The aim of this study was to create a biologically relevant HNSCC in vitro model consisting of both tumor cells and CAFs cultured in 3D to establish predictive biomarkers for treatment response, as well as to investigate the impact of CAFs on phenotype, proliferation and treatment response in HNSCC cells. Methods Three different HNSCC patient-derived tumor cell lines were cultured with and without CAFs in a 3D model. Immunohistochemistry of the proliferation marker Ki67, epidermal growth factor receptor (EGFR) and fibronectin and a TUNEL-assay were performed to analyze the effect of CAFs on both tumor cell proliferation and response to cisplatin and cetuximab treatment in tumor spheroids (3D). mRNA expression of epithelial-mesenchymal transition (EMT) and cancer stem cells markers were analyzed using qRT-PCR. Results The results demonstrated increased cell proliferation within the tumor spheroids in the presence of CAFs, correlating with increased expression of EGFR. In spheroids with increased expression of EGFR, a potentiated response to cetuximab treatment was observed. Surprisingly, an increase in Ki67 expressing tumor cells were observed in spheroids treated with cisplatin for 3 days, correlating with increased expression of EGFR. Furthermore, tumor cells co-cultured with CAFs presented an increased EMT phenotype compared to tumor cells cultured alone in 3D. Conclusion Taken together, our results reveal increased cell proliferation and elevated expression of EGFR in HNSCC tumor spheroids in the presence of CAFs. These results, together with the altered EMT phenotype, may influence the response to cetuximab or cisplatin treatment.

scholarly journals Normal sulfation levels regulate spinal cord neural precursor cell proliferation and differentiation

2012 ◽  
Vol 7 (1) ◽  
pp. 20 ◽  
Author(s):  
Michael Karus ◽  
Samira Samtleben ◽  
Claudia Busse ◽  
Teresa Tsai ◽  
Irmgard D Dietzel ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Cell Proliferation ◽  
Precursor Cell ◽  
Neural Precursor ◽  
Neural Precursor Cell ◽  
Cell Proliferation And Differentiation ◽  
Proliferation And Differentiation
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