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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 Nat+Commun
2014 ; 5
(ä): 5662
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Resolving cancer-stroma interfacial signalling and interventions with
micropatterned tumour-stromal assays
#MMPMID25489927
Shen K
; Luk S
; Hicks DF
; Elman JS
; Bohr S
; Iwamoto Y
; Murray R
; Pena K
; Wang F
; Seker E
; Weissleder R
; Yarmush ML
; Toner M
; Sgroi D
; Parekkadan B
Nat Commun
2014[Dec]; 5
(ä): 5662
PMID25489927
show ga
Tumour-stromal interactions are a determining factor in cancer progression. In
vivo, the interaction interface is associated with spatially resolved
distributions of cancer and stromal phenotypes. Here, we establish a
micropatterned tumour-stromal assay (?TSA) with laser capture microdissection to
control the location of co-cultured cells and analyse bulk and interfacial
tumour-stromal signalling in driving cancer progression. ?TSA reveals a spatial
distribution of phenotypes in concordance with human oestrogen receptor-positive
(ER+) breast cancer samples, and heterogeneous drug activity relative to the
tumour-stroma interface. Specifically, an unknown mechanism of reversine is shown
in targeting tumour-stromal interfacial interactions using ER+ MCF-7 breast
cancer and bone marrow-derived stromal cells. Reversine suppresses MCF-7 tumour
growth and bone metastasis in vivo by reducing tumour stromalization including
collagen deposition and recruitment of activated stromal cells. This study
advocates ?TSA as a platform for studying tumour microenvironmental interactions
and cancer field effects with applications in drug discovery and development.