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2015 ; 25
(10
): 1191-1208
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Deubiquitinases (DUBs) and DUB inhibitors: a patent review
#MMPMID26077642
Farshi P
; Deshmukh RR
; Nwankwo JO
; Arkwright RT
; Cvek B
; Liu J
; Dou QP
Expert Opin Ther Pat
2015[]; 25
(10
): 1191-1208
PMID26077642
show ga
INTRODUCTION: Deubiquitinating-enzymes (DUBs) are key components of the
ubiquitin-proteasome system (UPS). The fundamental role of DUBs is specific
removal of ubiquitin from substrates. DUBs contribute to activation/deactivation,
recycling and localization of numerous regulatory proteins, and thus play major
roles in diverse cellular processes. Altered DUB activity is associated with a
multitudes of pathologies including cancer. Therefore, DUBs represent novel
candidates for target-directed drug development. AREAS COVERED: The article is a
thorough review/accounting of patented compounds targeting DUBs and
stratifying/classifying the patented compounds based on: chemical-structures,
nucleic-acid compositions, modes-of-action, and targeting sites. The review
provides a brief background on the UPS and the involvement of DUBs. Furthermore,
methods for assessing efficacy and potential pharmacological utility of DUB
inhibitor (DUBi) are discussed. EXPERT OPINION: The FDA's approval of the 20S
proteasome inhibitors (PIs): bortezomib and carfilzomib for treatment of
hematological malignancies established the UPS as an anti-cancer target.
Unfortunately, many patients are inherently resistant or develop resistance to
PIs. One potential strategy to combat PI resistance is targeting upstream
components of the UPS such as DUBs. DUBs represent a promising potential
therapeutic target due to their critical roles in various cellular processes
including protein turnover, localization and cellular homeostasis. While
considerable efforts have been undertaken to develop DUB modulators, significant
advancements are necessary to move DUBis into the clinic.