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Heat shock protein 70-2 (HSP70-2) overexpression in breast cancer

Overview of attention for article published in Journal of Experimental & Clinical Cancer Research, September 2016
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Title
Heat shock protein 70-2 (HSP70-2) overexpression in breast cancer
Published in
Journal of Experimental & Clinical Cancer Research, September 2016
DOI 10.1186/s13046-016-0425-9
Pubmed ID
Authors

Nirmala Jagadish, Sumit Agarwal, Namita Gupta, Rukhsar Fatima, Sonika Devi, Vikash Kumar, Vaishali Suri, Rajive Kumar, Vitusha Suri, Trilok Chand Sadasukhi, Anju Gupta, Abdul S. Ansari, Nirmal Kumar Lohiya, Anil Suri

Abstract

Breast cancer is one of the leading cause of cancer-related deaths in women worldwide and increasing rapidly in developing countries. In the present study, we investigated the potential role and association of HSP70-2 with breast cancer. HSP70-2 expression was examined in 154 tumor and 103 adjacent non-cancerous tissue (ANCT) specimens and breast cancer cell lines (MCF7, BT-474, SK-BR-3 and MDA-MB-231) by RT-PCR, quantitative-PCR, immunohistochemistry, Western blotting, flow cytometry and indirect immunofluorescence. Plasmid driven short hairpin RNA approach was employed to validate the role of HSP70-2 in cellular proliferation, senescence, migration, invasion and tumor growth. Further, we studied the effect of HSP70-2 protein ablation on signaling cascades involved in apoptosis, cell cycle and Epithelial-Mesenchymal-Transition both in culture as well as in-vivo human breast xenograft mouse model. HSP70-2 expression was detected in majority of breast cancer patients (83 %) irrespective of various histotypes, stages and grades. HSP70-2 expression was also observed in all breast cancer cells (BT-474, MCF7, MDA-MB-231 and SK-BR-3) used in this study. Depletion of HSP70-2 in MDA-MB-231 and MCF7 cells resulted in a significant reduction in cellular growth, motility, onset of apoptosis, senescence, cell cycle arrest as well as reduction of tumor growth in the xenograft model. At molecular level, down-regulation of HSP70-2 resulted in reduced expression of cyclins, cyclin dependent kinases, anti-apoptotic molecules and mesenchymal markers and enhanced expression of CDK inhibitors, caspases, pro-apoptotic molecules and epithelial markers. HSP70-2 is over expressed in breast cancer patients and was involved in malignant properties of breast cancer. This suggests HSP70-2 may be potential candidate molecule for development of better breast cancer treatment.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 70 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 70 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 11 16%
Student > Ph. D. Student 10 14%
Student > Master 7 10%
Researcher 6 9%
Student > Doctoral Student 3 4%
Other 8 11%
Unknown 25 36%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 12 17%
Medicine and Dentistry 8 11%
Agricultural and Biological Sciences 7 10%
Pharmacology, Toxicology and Pharmaceutical Science 5 7%
Social Sciences 3 4%
Other 9 13%
Unknown 26 37%
Attention Score in Context

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 06 March 2023.
All research outputs
#20,744,283
of 25,483,400 outputs
Outputs from Journal of Experimental & Clinical Cancer Research
#1,644
of 2,396 outputs
Outputs of similar age
#254,833
of 328,887 outputs
Outputs of similar age from Journal of Experimental & Clinical Cancer Research
#14
of 25 outputs
Altmetric has tracked 25,483,400 research outputs across all sources so far. This one is in the 10th percentile – i.e., 10% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,396 research outputs from this source. They receive a mean Attention Score of 4.8. This one is in the 17th percentile – i.e., 17% of its peers scored the same or lower than it.
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 328,887 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 11th percentile – i.e., 11% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 25 others from the same source and published within six weeks on either side of this one. This one is in the 40th percentile – i.e., 40% of its contemporaries scored the same or lower than it.