10.1158/0008-5472.CAN-15-1524 http://scihub22266oqcxt.onion/10.1158/0008-5472.CAN-15-1524 C5031238!5031238
!27197188
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Cancer+Res
2016 ; 76
(13
): 3884-94
Nephropedia Template TP gab.com Text Twit Text FOAVip Twit Text # English Wikipedia
Renalase Expression by Melanoma and Tumor-Associated Macrophages Promotes Tumor
Growth through a STAT3-Mediated Mechanism
#MMPMID27197188
Hollander L
; Guo X
; Velazquez H
; Chang J
; Safirstein R
; Kluger H
; Cha C
; Desir GV
Cancer Res
2016[Jul]; 76
(13
): 3884-94
PMID27197188
show ga
To sustain their proliferation, cancer cells overcome negative-acting signals
that restrain their growth and promote senescence and cell death. Renalase (RNLS)
is a secreted flavoprotein that functions as a survival factor after ischemic and
toxic injury, signaling through the plasma calcium channel PMCA4b to activate the
PI3K/AKT and MAPK pathways. We show that RNLS expression is increased markedly in
primary melanomas and CD163(+) tumor-associated macrophages (TAM). In clinical
specimens, RNLS expression in the tumor correlated inversely with
disease-specific survival, suggesting a pathogenic role for RNLS. Attenuation of
RNLS by RNAi, blocking antibodies, or an RNLS-derived inhibitory peptide
decreased melanoma cell survival, and anti-RNLS therapy blocked tumor growth in
vivo in murine xenograft assays. Mechanistic investigations showed that increased
apoptosis in tumor cells was temporally related to p38 MAPK-mediated Bax
activation and that increased cell growth arrest was associated with elevated
expression of the cell-cycle inhibitor p21. Overall, our results established a
role for the secreted flavoprotein RNLS in promoting melanoma cell growth and
CD163(+) TAM in the tumor microenvironment, with potential therapeutic
implications for the management of melanoma. Cancer Res; 76(13); 3884-94. ©2016
AACR.
Please enable JavaScript to view the comments powered by Disqus. |*Gene Expression Regulation, Neoplastic
[MESH] |Animals
[MESH] |Apoptosis
[MESH] |Biomarkers, Tumor/*metabolism
[MESH] |Blotting, Western
[MESH] |Case-Control Studies
[MESH] |Cell Cycle
[MESH] |Cell Proliferation
[MESH] |Female
[MESH] |Follow-Up Studies
[MESH] |Humans
[MESH] |Immunoenzyme Techniques
[MESH] |Macrophages/metabolism/*pathology
[MESH] |Male
[MESH] |Melanoma/metabolism/*pathology
[MESH] |Mice
[MESH] |Mice, Inbred C57BL
[MESH] |Mice, Nude
[MESH] |Monoamine Oxidase/*metabolism
[MESH] |Neoplasm Staging
[MESH] |Prognosis
[MESH] |Proto-Oncogene Proteins c-akt/metabolism
[MESH] |STAT3 Transcription Factor/*metabolism
[MESH] |Signal Transduction
[MESH] |Survival Rate
[MESH] |Tumor Cells, Cultured
[MESH] |Xenograft Model Antitumor Assays
[MESH] DeepDyve Pubget Overpricing