| Title |
RETRACTED ARTICLE: Expression and prognostic value of the aldehyde dehydrogenase 1 (ALDH1) and N-myc downstream regulated gene 2 (NDRG2) as potential markers in human astrocytomas
|
|---|---|
| Published in |
Tumor Biology, November 2015
|
| DOI | 10.1007/s13277-015-4491-y |
| Pubmed ID | |
| Authors |
Peyman Karimi Goudarzi, Farzad Mehrabi, Reza Jalili Khoshnood, Ali Baradaran Bagheri, Koorosh Ahmadi, Emad Yahaghi, Hesam Abdolhoseinpour |
| Abstract |
In this study, immunohistochemical analysis was used to evaluate the expression of ALDH1 and NDRG2 in astrocytoma tissue samples and normal brain tissues. ALDH1 protein staining displayed that AlDH1 expression was not detectable in eight astrocytoma tissues (8/36) and in all of normal brain tissues. There was a significant difference between ALDH1 expression and WHO grades (P = 0.03). Furthermore, no correlation was determined between expression levels of ALDH1 and other clinicopathological characteristics including age, sex, and tumor size. Immunohistochemistry showed that a high level of NDRG2 protein expression was markedly detected in normal brain tissues and expression of NDRG2 protein was significantly decreased in astrocytoma tissues. There was a significant association between pathological grading and NDRG2 expression level (P < 0.001, Table 1), but no correlation was determined between expression levels of NDRG2 and other clinicopathological characteristics including age, sex, and tumor size. We also obtained detailed follow-up data and evaluated the association of ALDH1/NDRG2 expressions with overall survival. Kaplan-Meier survival and log-rank analysis indicated that the patients with high proportion of ALDH1-positive cells and low proportion of NDRG2-positive had shorter overall survival (P < 0.001; P = 0.001). Univariate analysis indicated that the high proportion of ALDH1-positive cells (P < 0.001), the low proportion of NDRG2-positive cells (P = 0.009), and the advanced grade (P < 0.005) were markedly linked to the prognosis in patients. Furthermore, in the multivariate analysis, ALDH1 cells' expression (P = 0.012), low proportion of NDRG2-positive cells (P = 0.025), and advanced grade (P < 0.03) were linked to poor overall survival. Our results suggest that NDRG2 expression is related to decreased survival rates and NDRG2 may be a potential marker in the astrocytoma prognosis. NDRG2 may be a potential marker in the astrocytoma prognosis. ALDH1 expression was related to advanced pathological grade and survival rate in astrocytoma patients. |
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 10 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 2 | 20% |
| Other | 1 | 10% |
| Professor | 1 | 10% |
| Student > Doctoral Student | 1 | 10% |
| Researcher | 1 | 10% |
| Other | 1 | 10% |
| Unknown | 3 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 3 | 30% |
| Neuroscience | 2 | 20% |
| Biochemistry, Genetics and Molecular Biology | 1 | 10% |
| Unknown | 4 | 40% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 December 2015.
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#15,901,114
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Outputs from Tumor Biology
#1,073
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Outputs of similar age
#231,443
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Outputs of similar age from Tumor Biology
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