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2014 ; 13
(12
): 3230-40
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Cancer in silico drug discovery: a systems biology tool for identifying candidate
drugs to target specific molecular tumor subtypes
#MMPMID25349306
San Lucas FA
; Fowler J
; Chang K
; Kopetz S
; Vilar E
; Scheet P
Mol Cancer Ther
2014[Dec]; 13
(12
): 3230-40
PMID25349306
show ga
Large-scale cancer datasets such as The Cancer Genome Atlas (TCGA) allow
researchers to profile tumors based on a wide range of clinical and molecular
characteristics. Subsequently, TCGA-derived gene expression profiles can be
analyzed with the Connectivity Map (CMap) to find candidate drugs to target
tumors with specific clinical phenotypes or molecular characteristics. This
represents a powerful computational approach for candidate drug identification,
but due to the complexity of TCGA and technology differences between CMap and
TCGA experiments, such analyses are challenging to conduct and reproduce. We
present Cancer in silico Drug Discovery (CiDD; scheet.org/software), a
computational drug discovery platform that addresses these challenges. CiDD
integrates data from TCGA, CMap, and Cancer Cell Line Encyclopedia (CCLE) to
perform computational drug discovery experiments, generating hypotheses for the
following three general problems: (i) determining whether specific clinical
phenotypes or molecular characteristics are associated with unique gene
expression signatures; (ii) finding candidate drugs to repress these expression
signatures; and (iii) identifying cell lines that resemble the tumors being
studied for subsequent in vitro experiments. The primary input to CiDD is a
clinical or molecular characteristic. The output is a biologically annotated list
of candidate drugs and a list of cell lines for in vitro experimentation. We
applied CiDD to identify candidate drugs to treat colorectal cancers harboring
mutations in BRAF. CiDD identified EGFR and proteasome inhibitors, while
proposing five cell lines for in vitro testing. CiDD facilitates
phenotype-driven, systematic drug discovery based on clinical and molecular data
from TCGA.
|*Drug Discovery
[MESH]
|*Gene Expression Profiling
[MESH]
|Antineoplastic Agents/pharmacology/therapeutic use
[MESH]