Title |
Expression of angiogenic factors is increased in metastasised renal cell carcinomas
|
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Published in |
Virchows Archiv, January 2014
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DOI | 10.1007/s00428-013-1529-7 |
Pubmed ID | |
Authors |
Mahmoud Abbas, Johannes Salem, Angelika Stucki-Koch, Mareike Rickmann, Viktor Grünwald, Thomas Herrmann, Danny Jonigk, Hans Kreipe, Kais Hussein |
Abstract |
Clear cell renal cell carcinomas (ccRCC) have aberrant signalling pathways which affect vascular endothelial growth factor and are related to increased tumour angiogenesis. Little is known about other angiogenesis-associated genes in primary tumours and metastases. Quantitative PCR of 45 angiogenesis-associated gene transcripts was performed on formalin-fixed and paraffin-embedded tissues from primary ccRCC (n = 18) and their metastases (n = 17; in 8/17 cases the corresponding primary tumour could be analysed). In metastases, a significant increase was found in the expression of 15 pro-angiogenic (such as prostaglandin-endoperoxide synthase 1) and also anti-angiogenic (such as TIMP metallopeptidase inhibitor 2) factors. Comparison of a primary with its metastasis performed on eight cases showed that even without preceding anti-angiogenic therapy in metastases expression of angiogenic factors is increased. In ccRCC, the effects of anti-angiogenic factors are superimposed by pro-angiogenic factors. Increased expression of angiogenic factors in metastases might be related to development of resistance after anti-angiogenic therapy but might also be an inherent biological characteristic. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 18 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Doctoral Student | 3 | 17% |
Researcher | 3 | 17% |
Professor | 2 | 11% |
Student > Master | 2 | 11% |
Student > Ph. D. Student | 1 | 6% |
Other | 3 | 17% |
Unknown | 4 | 22% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 11 | 61% |
Biochemistry, Genetics and Molecular Biology | 2 | 11% |
Economics, Econometrics and Finance | 1 | 6% |
Agricultural and Biological Sciences | 1 | 6% |
Unknown | 3 | 17% |