TY - JOUR
T1 - Phenotypic heterogeneity of disseminated tumour cells is preset by primary tumour hypoxic microenvironments
AU - Fluegen, Georg
AU - Avivar-Valderas, Alvaro
AU - Wang, Yarong
AU - Padgen, Michael R.
AU - Williams, James K.
AU - Nobre, Ana Rita
AU - Calvo, Veronica
AU - Cheung, Julie F.
AU - Bravo-Cordero, Jose Javier
AU - Entenberg, David
AU - Castracane, James
AU - Verkhusha, Vladislav
AU - Keely, Patricia J.
AU - Condeelis, John
AU - Aguirre-Ghiso, Julio A.
N1 - Publisher Copyright:
© 2017 Macmillan Publishers Limited, part of Springer Nature. All rights reserved.
PY - 2017/1/31
Y1 - 2017/1/31
N2 - Hypoxia is a poor-prognosis microenvironmental hallmark of solid tumours, but it is unclear how it influences the fate of disseminated tumour cells (DTCs) in target organs. Here we report that hypoxic HNSCC and breast primary tumour microenvironments displayed upregulation of key dormancy (NR2F1, DEC2, p27) and hypoxia (GLUT1, HIF1α) genes. Analysis of solitary DTCs in PDX and transgenic mice revealed that post-hypoxic DTCs were frequently NR2F1hi/DEC2hi/p27hi/TGFβ2hi and dormant. NR2F1 and HIF1α were required for p27 induction in post-hypoxic dormant DTCs, but these DTCs did not display GLUT1hi expression. Post-hypoxic DTCs evaded chemotherapy and, unlike ER- breast cancer cells, post-hypoxic ER+ breast cancer cells were more prone to enter NR2F1-dependent dormancy. We propose that primary tumour hypoxic microenvironments give rise to a subpopulation of dormant DTCs that evade therapy. These post-hypoxic dormant DTCs may be the source of disease relapse and poor prognosis associated with hypoxia.
AB - Hypoxia is a poor-prognosis microenvironmental hallmark of solid tumours, but it is unclear how it influences the fate of disseminated tumour cells (DTCs) in target organs. Here we report that hypoxic HNSCC and breast primary tumour microenvironments displayed upregulation of key dormancy (NR2F1, DEC2, p27) and hypoxia (GLUT1, HIF1α) genes. Analysis of solitary DTCs in PDX and transgenic mice revealed that post-hypoxic DTCs were frequently NR2F1hi/DEC2hi/p27hi/TGFβ2hi and dormant. NR2F1 and HIF1α were required for p27 induction in post-hypoxic dormant DTCs, but these DTCs did not display GLUT1hi expression. Post-hypoxic DTCs evaded chemotherapy and, unlike ER- breast cancer cells, post-hypoxic ER+ breast cancer cells were more prone to enter NR2F1-dependent dormancy. We propose that primary tumour hypoxic microenvironments give rise to a subpopulation of dormant DTCs that evade therapy. These post-hypoxic dormant DTCs may be the source of disease relapse and poor prognosis associated with hypoxia.
UR - http://www.scopus.com/inward/record.url?scp=85010868094&partnerID=8YFLogxK
U2 - 10.1038/ncb3465
DO - 10.1038/ncb3465
M3 - Article
C2 - 28114271
AN - SCOPUS:85010868094
SN - 1465-7392
VL - 19
SP - 120
EP - 132
JO - Nature Cell Biology
JF - Nature Cell Biology
IS - 2
ER -