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2017 ; 7
(1
): 10327
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Controlling Directed Protein Interaction Networks in Cancer
#MMPMID28871116
Kanhaiya K
; Czeizler E
; Gratie C
; Petre I
Sci Rep
2017[Sep]; 7
(1
): 10327
PMID28871116
show ga
Control theory is a well-established approach in network science, with
applications in bio-medicine and cancer research. We build on recent results for
structural controllability of directed networks, which identifies a set of driver
nodes able to control an a-priori defined part of the network. We develop a novel
and efficient approach for the (targeted) structural controllability of cancer
networks and demonstrate it for the analysis of breast, pancreatic, and ovarian
cancer. We build in each case a protein-protein interaction network and focus on
the survivability-essential proteins specific to each cancer type. We show that
these essential proteins are efficiently controllable from a relatively small
computable set of driver nodes. Moreover, we adjust the method to find the driver
nodes among FDA-approved drug-target nodes. We find that, while many of the drugs
acting on the driver nodes are part of known cancer therapies, some of them are
not used for the cancer types analyzed here; some drug-target driver nodes
identified by our algorithms are not known to be used in any cancer therapy.
Overall we show that a better understanding of the control dynamics of cancer
through computational modelling can pave the way for new efficient therapeutic
approaches and personalized medicine.