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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cell+Stem+Cell
2017 ; 20
(2
): 191-204.e5
Nephropedia Template TP
gab.com Text
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Cell-Type-Specific Chromatin States Differentially Prime Squamous Cell Carcinoma
Tumor-Initiating Cells for Epithelial to Mesenchymal Transition
#MMPMID27889319
Latil M
; Nassar D
; Beck B
; Boumahdi S
; Wang L
; Brisebarre A
; Dubois C
; Nkusi E
; Lenglez S
; Checinska A
; Vercauteren Drubbel A
; Devos M
; Declercq W
; Yi R
; Blanpain C
Cell Stem Cell
2017[Feb]; 20
(2
): 191-204.e5
PMID27889319
show ga
Epithelial to mesenchymal transition (EMT) in cancer cells has been associated
with metastasis, stemness, and resistance to therapy. Some tumors undergo EMT
while others do not, which may reflect intrinsic properties of their cell of
origin. However, this possibility is largely unexplored. By targeting the same
oncogenic mutations to discrete skin compartments, we show that
cell-type-specific chromatin and transcriptional states differentially prime
tumors to EMT. Squamous cell carcinomas (SCCs) derived from interfollicular
epidermis (IFE) are generally well differentiated, while hair follicle (HF) stem
cell-derived SCCs frequently exhibit EMT, efficiently form secondary tumors, and
possess increased metastatic potential. Transcriptional and epigenomic profiling
revealed that IFE and HF tumor-initiating cells possess distinct chromatin
landscapes and gene regulatory networks associated with tumorigenesis and EMT
that correlate with accessibility of key epithelial and EMT transcription factor
binding sites. These findings highlight the importance of chromatin states and
transcriptional priming in dictating tumor phenotypes and EMT.