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2017 ; 7
(1
): 4378
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Expression analysis of inflammasome sensors and implication of NLRP12
inflammasome in prostate cancer
#MMPMID28663562
Karan D
; Tawfik O
; Dubey S
Sci Rep
2017[Jun]; 7
(1
): 4378
PMID28663562
show ga
Inflammasomes are multi-proteins complex regulating inflammation-associated
signaling. While inflammation plays a critical role in cancer cell growth,
studies remain uncharacterized on the role of inflammasomes in prostate cancer.
Using Gene Expression Omnibus (GEO) public datasets, we screened the expression
profiles of inflammasome sensors NLRP3, NLRC4, NLRP6, NRLP12, and AIM2 in
prostate tumor tissues, and verified their mRNA level in a panel of prostate
cancer cell lines. The selected expression of NLRP3 and NLRP12 inflammasomes was
validated, and the clinical association was evaluated in human prostate archival
tumor tissues. We observed that the expression of inflammasome sensors was
dysregulated at the mRNA level except for the NLRP12. The intensity of NLRP12
immunostaining was significantly higher in malignant prostate as compared to
their adjacent benign tissues. In contrast, the NLRP3 immunostaining in prostate
tissues was heterogeneous. The inflammasome complex proteins ASC
(apoptosis-associated speck-like protein containing a CARD) and pro-caspase-1, as
well as its downstream targets IL-1? and IL-18 were confined to aggressive
prostate cancer cells. These data suggest an increased expression of NLRP12 in
association with prostate cancer and support the role of NLRP12 inflammasome
complex regulating inflammatory cytokines in understanding the role of
inflammation in the prostate cancer.
|*Gene Expression Regulation, Neoplastic
[MESH]
|Cell Line, Tumor
[MESH]
|Computational Biology/methods
[MESH]
|Databases, Genetic
[MESH]
|Humans
[MESH]
|Immunohistochemistry
[MESH]
|Inflammasomes/*genetics/*metabolism
[MESH]
|Intracellular Signaling Peptides and Proteins/*genetics/*metabolism
[MESH]