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2017 ; 64
(ä): 79-89
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Clonal cooperativity in heterogenous cancers
#MMPMID27582427
Zhou H
; Neelakantan D
; Ford HL
Semin Cell Dev Biol
2017[Apr]; 64
(ä): 79-89
PMID27582427
show ga
Tumor heterogeneity is a major obstacle to the development of effective therapies
and is thus an important focus of cancer research. Genetic and epigenetic
alterations, as well as altered tumor microenvironments, result in tumors made up
of diverse subclones with different genetic and phenotypic characteristics.
Intratumor heterogeneity enables competition, but also supports clonal
cooperation via cell-cell contact or secretion of factors, resulting in enhanced
tumor progression. Here, we summarize recent findings related to interclonal
interactions within a tumor and the therapeutic implications of such
interactions, with an emphasis on how different subclones collaborate with each
other to promote proliferation, metastasis and therapy-resistance. Furthermore,
we propose that disruption of clonal cooperation by targeting key factors (such
as Wnt and Hedgehog, amongst others) can be an alternative approach to improving
clinical outcomes.