You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output.
Click here to find out more.
Mendeley readers
Attention Score in Context
| Title |
Vitamin D Growth Inhibition of Breast Cancer Cells: Gene Expression Patterns Assessed by cDNA Microarray
|
|---|---|
| Published in |
Breast Cancer Research and Treatment, July 2003
|
| DOI | 10.1023/a:1024487118457 |
| Pubmed ID | |
| Authors |
Srilatha Swami, Nalini Raghavachari, Uwe R. Muller, Yijia P. Bao, David Feldman |
| Abstract |
1,25-Dihydroxyvitamin D3 [1,25(OH)2D3], the active metabolite of vitamin D, is a potent inhibitor of breast cancer cell growth. Although it is evident that 1,25(OH)2D3 inhibits growth of both estrogen receptor alpha-positive [ER alpha(+)] and -negative [ER alpha(-)] breast cancer cells, the cellular pathways contributing to these effects remain unclear. We studied the gene expression patterns in ER alpha(+) MCF-7 and ER alpha(-) MDA MB 231 human breast cancer cells following 1,25(OH)2D3 treatment, using cDNA expression arrays. Both cell lines showed a significant induction of the 1,25(OH)2D3-dependent 24-hydroxylase gene, a marker for the actions of 1,25(OH)2D3. In MCF-7 cells, 51 genes were up-regulated and 19 genes were down-regulated. The up-regulated genes encoded cell adhesion molecules, growth factors/modulators, steroid receptors/co-activators, cytokines, kinases and transcription factors. Of the up-regulated genes, 40% were implicated in cell cycle regulation and apoptosis and included cyclin G1 and cyclin I, p21-activated kinase-1 (PAK-1), p53, retinoblastoma like-2 [Rb2 (p130)], insulin-like growth factor binding protein-5 (IGFBP5) and caspases. Among the down-regulated genes were ER alpha, growth factors, cytokines and several kinases. Some of these results were confirmed by real-time PCR. In MDA MB 231 cells, 20 genes were up-regulated and 13 genes were down-regulated. Very few genes directly implicated in cell cycle regulation were up-regulated. The matrix metalloproteinases formed a major class of genes that were down-regulated in the MDA MB 231 cells. Seven genes were commonly up-regulated in both cell lines and these included transforming growth factor (TGFbeta2) and Rb2 (p130). In conclusion, the gene expression profiles of the two cell lines studied were different with a few overlapping genes suggesting that different cellular pathways might be regulated by 1,25(OH)2D3 to exert its growth inhibitory effects in ER alpha(+) and ER alpha(-) cells. |
Mendeley readers
The data shown below were compiled from readership statistics for 62 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 3% |
| Brazil | 2 | 3% |
| Turkey | 1 | 2% |
| Unknown | 57 | 92% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 11 | 18% |
| Researcher | 10 | 16% |
| Student > Master | 8 | 13% |
| Student > Doctoral Student | 6 | 10% |
| Student > Bachelor | 6 | 10% |
| Other | 12 | 19% |
| Unknown | 9 | 15% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 21 | 34% |
| Agricultural and Biological Sciences | 17 | 27% |
| Biochemistry, Genetics and Molecular Biology | 6 | 10% |
| Immunology and Microbiology | 3 | 5% |
| Unspecified | 2 | 3% |
| Other | 3 | 5% |
| Unknown | 10 | 16% |
Attention Score in Context
This research output has an Altmetric Attention Score of 6. 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 09 October 2018.
All research outputs
#4,739,298
of 22,955,959 outputs
Outputs from Breast Cancer Research and Treatment
#895
of 4,672 outputs
Outputs of similar age
#8,331
of 48,798 outputs
Outputs of similar age from Breast Cancer Research and Treatment
#3
of 16 outputs
Altmetric has tracked 22,955,959 research outputs across all sources so far. Compared to these this one has done well and is in the 76th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 4,672 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.2. This one has gotten more attention than average, scoring higher than 74% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 48,798 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 71% of its contemporaries.
We're also able to compare this research output to 16 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 75% of its contemporaries.