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Entity | Preeclampsia |
Note | Significantly elevated levels of Smac were found in villous trophoblast in pregnancies complicated by preeclampsia in comparison with normal pregnancies. This upregulation may be related to increased apoptosis in preeclampsia (Heazell et al., 2008). |
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Entity | Hepatocellular carcinoma |
Note | mRNA and protein expression of Smac was significantly different in tissues of hepatocellular carcinoma and non hepatocellular carcinoma tissues. Smac expression is diminished in carcinoma (Bao et al., 2006). |
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Entity | Pancreatic cancer |
Note | Smac protein, by immunohistochemistry analysis, was significantly upregulated in pancreatic tumours. Smac expression was correlated only with pathological grade (p<0.05) (Hu et al., 2012). |
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Entity | Bladder cancer |
Note | Smac expression is downregulated in bladder cancer, this reduced level predicts a worse prognosis (Mizutani et al., 2010). Even, the mean serum level of Smac was reduced 2-fold in bladder cancer patients in comparison with normal donors. The mean serum level of Smac either was reduced in patients with an advanced stage and grade tumor. Lower serum level of smac predicted early recurrence in patients with bladder cancer (Mizutani et al., 2012). |
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Entity | Breast cancer |
Note | Smac expression is reduced in breast cancer and inversely correlates with the tumor stage (Pluta et al., 2011). Smac expression is more prevalent in the HER2 positive group than negative group (Zhang et al., 2011). Additonally, Smac mRNA expression is downregulated in breast cancer samples and shows an inverse correlation with survivin mRNA expression (Mansour et al., 2012). |
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Entity | Endometrioid endometrial cancer |
Note | Smac protein expression correlates with tumor grade. Negative expression of Smac is a sign of poor prognostic in this kind of tumor (Dobrzycka et al., 2010). |
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Entity | Ovarian mucinous tumor |
Note | Smac protein expression is downregulated in this tumor. Smac expression inversely correlates with Survivin expression. Analysis of subcellular localization of Smac demonstrate that Smac protein exist mainly in the intermembranal space of the mitochondria (Wang et al., 2010). |
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Entity | Lung cancer |
Note | Smac mRNA expression is lower in primary lung cancer than in normal tissues. In squamous cell carcinomas the expression of Smac is more reduced than in adenocarcinomas. In tumours of smokers the expression of Smac mRNA is lower than in tumours of non smokers. Smac expression correlates inversely with stage tumour and low expression is sign of worse prognostic (Sekimura et al., 2004). |
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Entity | Non-small cell lung cancer |
Note | Smac mRNA expression is significantly increased in NSCLC tissues in comparison with lung tissue (Krepela et al., 2006). In advanced NSCLC high smac mRNA expression correlates with longer progression-free survival (PFS) and overall survival (OS). Smac is an independent prognostic factor for OS, but not for FPS (Chen et al., 2010). |
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Entity | Prostate cancer |
Note | Smac protein is increased in prostate cancer and correlates with high Gleason score (sum=8-10) (Grubb et al., 2009). |
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Entity | Colorectal cancer |
Note | Patients with smac-negative cancer have higher incidence of lymph node and distant metastases than smac positive-cancer. Negative expression of Smac predicts poorer survival and is a prognostic indicator independent of Duke's staging and lymph node metastases (Endo et al., 2009). |
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Entity | Testicular germ cell tumours |
Note | Smac mRNA is downregulated during the development and progression of TGCT. While Smac mRNA is downregulated XIAP mRNA expression is unchanged, and patients with high ratio XIAP:Smac are likely in clinical stage III (Kempkensteffen et al., 2007; Kempkensteffen et al., 2008b). |
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Entity | Mycosis fungoides |
Note | The 12q24.31 region is frequently deleted in early stages of MF (Carbone et al., 2008). |
Disease | The most frequent form of cutaneous T cell lymphoma. |
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Entity | Renal cell carcinoma |
Note | Smac protein expression is downregulated in RCC and no expression of Smac predicts a worse prognosis (Mizutani et al., 2005). Either Smac mRNA expression is inversely associated with outcome of RCC patients (Kempkensteffen et al., 2008a). |
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Entity | Cervical cancer |
Note | Smac mRNA is expressed de novo in cervical cancer, although no correlation with any clinical variable was found (Espinosa et al., 2004). However, Smac protein expression correlates with microvascular density, a marker for angiogenesis (Arellano-Llamas et al., 2006). |
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Entity | B-cell non-Hodgkin and Hodgkin lymphomas |
Note | Smac protein is expressed in almost fifty percent of NHL and HL tissues. Smac protein is differentially expressed in various NHL types while all HL types were positive for Smac (Ren et al., 2006). |
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Entity | Acute leukemia (AL) |
Note | Smac mRNA expression is increased in de novo AL patients in comparison with normal controls and the levels decrease in patients at complete remission. In relapsed patients the levels of Smac are increased again. Smac expression in AL is related to remission rate, patients with high levels of Smac have low remission rates. Smac expression could serve like a marker of prognosis in AL (Wang and Zhou, 2006). |
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Entity | Chronic lymphocytic leukemia (CLL) |
Note | An increased expression of Smac has been observed in CLL samples. Possibly, these high levels of Smac in CLL could prevent the inhibitory effect of XIAP on caspases, since in conditions where XIAP is upregulated and apoptosis is prevented, there's no caspase inhibition (Schliep et al., 2004; Winkler et al., 2005). However, downregulation of Smac has been also observed in CLL samples. Higher expression of IAPs and lower levels of Smac were found in patients with progressive disease, compared with those with stable CLL (Ren et al., 2006; Grzybowska-Izydorczyk et al., 2010). |
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High Smac/DIABLO expression is associated with early local recurrence of cervical cancer. |
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PMID 17085346 |
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PMID 20045309 |
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PMID 22534537 |
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PMID 12525502 |
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[Expression levels of the IAP antagonists XAF1, Smac/DIABLO and HtrA2 in testicular germ cell tumours]. |
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Biochem Biophys Res Commun. 2006 Dec 1;350(4):949-54. Epub 2006 Oct 5. |
PMID 17045968 |
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J Cancer Res Clin Oncol. 2006 Jan;132(1):57-68. Epub 2005 Oct 18. |
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Cell Death Differ. 2006 Dec;13(12):2079-88. Epub 2006 May 26. |
PMID 16729033 |
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J Biol Chem. 2002 Sep 27;277(39):36611-6. Epub 2002 Jul 16. |
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J Biol Chem. 2005 Jan 7;280(1):174-82. Epub 2004 Oct 26. |
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Hum Pathol. 2006 Nov;37(11):1407-13. Epub 2006 Sep 1. |
PMID 16949641 |
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Exp Hematol. 2004 Jun;32(6):556-62. |
PMID 15183896 |
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PMID 15010875 |
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J Biol Chem. 2003 Jun 20;278(25):23130-40. Epub 2003 Mar 26. |
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J Biol Chem. 2002 Apr 5;277(14):12275-9. Epub 2002 Jan 18. |
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PMID 16617145 |
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