PMID- 21460252 OWN - NLM STAT- MEDLINE DCOM- 20110617 LR - 20211203 IS - 1091-6490 (Electronic) IS - 0027-8424 (Print) IS - 0027-8424 (Linking) VI - 108 IP - 16 DP - 2011 Apr 19 TI - AMP kinase-related kinase NUAK2 affects tumor growth, migration, and clinical outcome of human melanoma. PG - 6597-602 LID - 10.1073/pnas.1007694108 [doi] AB - The identification of genes that participate in melanomagenesis should suggest strategies for developing therapeutic modalities. We used a public array comparative genomic hybridization (CGH) database and real-time quantitative PCR (qPCR) analyses to identify the AMP kinase (AMPK)-related kinase NUAK2 as a candidate gene for melanomagenesis, and we analyzed its functions in melanoma cells. Our analyses had identified a locus at 1q32 where genomic gain is strongly associated with tumor thickness, and we used real-time qPCR analyses and regression analyses to identify NUAK2 as a candidate gene at that locus. Associations of relapse-free survival and overall survival of 92 primary melanoma patients with NUAK2 expression measured using immunohistochemistry were investigated using Kaplan-Meier curves, log rank tests, and Cox regression models. Knockdown of NUAK2 induces senescence and reduces S-phase, decreases migration, and down-regulates expression of mammalian target of rapamycin (mTOR). In vivo analysis demonstrated that knockdown of NUAK2 suppresses melanoma tumor growth in mice. Survival analysis showed that the risk of relapse is greater in acral melanoma patients with high levels of NUAK2 expression than in acral melanoma patients with low levels of NUAK2 expression (hazard ratio = 3.88; 95% confidence interval = 1.44-10.50; P = 0.0075). These data demonstrate that NUAK2 expression is significantly associated with the oncogenic features of melanoma cells and with the survival of acral melanoma patients. NUAK2 may provide a drug target to suppress melanoma progression. This study further supports the importance of NUAK2 in cancer development and tumor progression, while AMPK has antioncogenic properties. FAU - Namiki, Takeshi AU - Namiki T AD - Laboratory of Cell Biology, National Cancer Institute, Bethesda, MD 20814, USA. FAU - Tanemura, Atsushi AU - Tanemura A FAU - Valencia, Julio C AU - Valencia JC FAU - Coelho, Sergio G AU - Coelho SG FAU - Passeron, Thierry AU - Passeron T FAU - Kawaguchi, Masakazu AU - Kawaguchi M FAU - Vieira, Wilfred D AU - Vieira WD FAU - Ishikawa, Masashi AU - Ishikawa M FAU - Nishijima, Wataru AU - Nishijima W FAU - Izumo, Toshiyuki AU - Izumo T FAU - Kaneko, Yasuhiko AU - Kaneko Y FAU - Katayama, Ichiro AU - Katayama I FAU - Yamaguchi, Yuji AU - Yamaguchi Y FAU - Yin, Lanlan AU - Yin L FAU - Polley, Eric C AU - Polley EC FAU - Liu, Hongfang AU - Liu H FAU - Kawakami, Yutaka AU - Kawakami Y FAU - Eishi, Yoshinobu AU - Eishi Y FAU - Takahashi, Eishi AU - Takahashi E FAU - Yokozeki, Hiroo AU - Yokozeki H FAU - Hearing, Vincent J AU - Hearing VJ LA - eng GR - R01 LM009959/LM/NLM NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States PT - Journal Article PT - Multicenter Study PT - Research Support, N.I.H., Intramural DEP - 20110401 PL - United States TA - Proc Natl Acad Sci U S A JT - Proceedings of the National Academy of Sciences of the United States of America JID - 7505876 RN - 0 (Neoplasm Proteins) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (NUAK2 protein, human) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Animals MH - *Cell Movement MH - Cellular Senescence/genetics MH - Disease-Free Survival MH - Female MH - *Gene Expression Regulation, Enzymologic MH - *Gene Expression Regulation, Neoplastic MH - Gene Knockdown Techniques MH - Genetic Loci/genetics MH - Genome-Wide Association Study MH - Humans MH - Male MH - Melanoma/*enzymology/genetics/*mortality/pathology/therapy MH - Mice MH - Mice, Nude MH - Neoplasm Proteins/*biosynthesis/genetics MH - Protein Serine-Threonine Kinases/*biosynthesis/genetics MH - S Phase/genetics MH - Survival Rate MH - TOR Serine-Threonine Kinases/genetics/metabolism PMC - PMC3081019 COIS- The authors declare no conflict of interest. EDAT- 2011/04/05 06:00 MHDA- 2011/06/18 06:00 PMCR- 2011/10/19 CRDT- 2011/04/05 06:00 PHST- 2011/04/05 06:00 [entrez] PHST- 2011/04/05 06:00 [pubmed] PHST- 2011/06/18 06:00 [medline] PHST- 2011/10/19 00:00 [pmc-release] AID - 1007694108 [pii] AID - 201007694 [pii] AID - 10.1073/pnas.1007694108 [doi] PST - ppublish SO - Proc Natl Acad Sci U S A. 2011 Apr 19;108(16):6597-602. doi: 10.1073/pnas.1007694108. Epub 2011 Apr 1.