Identification and classification of human neural stem cells by infrared spectroscopic imaging

2009 ◽  
Author(s):  
G. Steiner ◽  
S. Küchler ◽  
E. Koch ◽  
R. Salzer ◽  
G. Schackert ◽  
...  
Keyword(s):  
Stem Cells ◽  
Neural Stem Cells ◽  
Spectroscopic Imaging ◽  
Human Neural Stem Cells ◽  
Infrared Spectroscopic ◽  
Infrared Spectroscopic Imaging

scholarly journals Rapid and label-free classification of human glioma cells by infrared spectroscopic imaging

2008 ◽  
Vol 73A (12) ◽  
pp. 1158-1164 ◽  
Author(s):  
Gerald Steiner ◽  
Saskia Küchler ◽  
Andreas Hermann ◽  
Edmund Koch ◽  
Reiner Salzer ◽  
...  
Keyword(s):  
Glioma Cells ◽  
Spectroscopic Imaging ◽  
Label Free ◽  
Human Glioma ◽  
Human Glioma Cells ◽  
Infrared Spectroscopic ◽  
Infrared Spectroscopic Imaging ◽  
Free Classification

scholarly journals mRNA-Driven Generation of Transgene-Free Neural Stem Cells from Human Urine-Derived Cells

Cells ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 1043 ◽  
Author(s):  
Phil Jun Kang ◽  
Daryeon Son ◽  
Tae Hee Ko ◽  
Wonjun Hong ◽  
Wonjin Yun ◽  
...  
Keyword(s):  
Stem Cells ◽  
Neural Stem Cells ◽  
Human Urine ◽  
Neurological Disorders ◽  
Therapeutic Potential ◽  
Embryonic Stem ◽  
Global Gene Expression ◽  
Patient Specific ◽  
Human Neural Stem Cells

Human neural stem cells (NSCs) hold enormous promise for neurological disorders, typically requiring their expandable and differentiable properties for regeneration of damaged neural tissues. Despite the therapeutic potential of induced NSCs (iNSCs), a major challenge for clinical feasibility is the presence of integrated transgenes in the host genome, contributing to the risk for undesired genotoxicity and tumorigenesis. Here, we describe the advanced transgene-free generation of iNSCs from human urine-derived cells (HUCs) by combining a cocktail of defined small molecules with self-replicable mRNA delivery. The established iNSCs were completely transgene-free in their cytosol and genome and further resembled human embryonic stem cell-derived NSCs in the morphology, biological characteristics, global gene expression, and potential to differentiate into functional neurons, astrocytes, and oligodendrocytes. Moreover, iNSC colonies were observed within eight days under optimized conditions, and no teratomas formed in vivo, implying the absence of pluripotent cells. This study proposes an approach to generate transplantable iNSCs that can be broadly applied for neurological disorders in a safe, efficient, and patient-specific manner.

scholarly journals BCOR Internal Tandem Duplication Expression in Neural Stem Cells Promotes Growth, Invasion, and Expression of PRC2 Targets

2021 ◽  
Vol 22 (8) ◽  
pp. 3913
Author(s):  
Satoshi Nakata ◽  
Ming Yuan ◽  
Jeffrey A. Rubens ◽  
Ulf D. Kahlert ◽  
Jarek Maciaczyk ◽  
...  
Keyword(s):  
Stem Cells ◽  
Neural Stem Cells ◽  
Tandem Duplication ◽  
Target Genes ◽  
Cellular Growth ◽  
Central Nervous System Tumor ◽  
Internal Tandem Duplication ◽  
Invasion And Migration ◽  
Human Neural Stem Cells ◽  
And Migration

Central nervous system tumor with BCL6-corepressor internal tandem duplication (CNS-BCOR ITD) is a malignant entity characterized by recurrent alterations in exon 15 encoding the essential binding domain for the polycomb repressive complex (PRC). In contrast to deletion or truncating mutations seen in other tumors, BCOR expression is upregulated in CNS-BCOR ITD, and a distinct oncogenic mechanism has been suggested. However, the effects of this change on the biology of neuroepithelial cells is poorly understood. In this study, we introduced either wildtype BCOR or BCOR-ITD into human and murine neural stem cells and analyzed them with quantitative RT-PCR and RNA-sequencing, as well as growth, clonogenicity, and invasion assays. In human cells, BCOR-ITD promoted derepression of PRC2-target genes compared to wildtype BCOR. A similar effect was found in clinical specimens from previous studies. However, no growth advantage was seen in the human neural stem cells expressing BCOR-ITD, and long-term models could not be established. In the murine cells, both wildtype BCOR and BCOR-ITD overexpression affected cellular differentiation and histone methylation, but only BCOR-ITD increased cellular growth, invasion, and migration. BCOR-ITD overexpression drives transcriptional changes, possibly due to altered PRC function, and contributes to the oncogenic transformation of neural precursors.

scholarly journals Breast cancer histopathology using infrared spectroscopic imaging: The impact of instrumental configurations

2021 ◽  
pp. 100006
Author(s):  
Shachi Mittal ◽  
Tomasz P. Wrobel ◽  
Michael Walsh ◽  
Andre Kajdacsy-Balla ◽  
Rohit Bhargava
Keyword(s):  
Breast Cancer ◽  
Spectroscopic Imaging ◽  
Infrared Spectroscopic ◽  
Infrared Spectroscopic Imaging ◽  
The Impact
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