2006
Serum HER-2/neu: a tumor marker for monitoring response to treatment of metastatic breast cancer with trastuzumab
GRELL, Peter, Katarína PETRÁKOVÁ, Marta ŠIMÍČKOVÁ, Marek SVOBODA, Miloslava NEKULOVÁ et. al.Základní údaje
Originální název
Serum HER-2/neu: a tumor marker for monitoring response to treatment of metastatic breast cancer with trastuzumab
Název česky
Sérová HER-2/neu: nádorový marker pro monitoring odpovědi na léčbu trastuzumabem u metastatického karcinomu prsu
Autoři
GRELL, Peter, Katarína PETRÁKOVÁ, Marta ŠIMÍČKOVÁ, Marek SVOBODA, Miloslava NEKULOVÁ, Ladislav PECEN, Rostislav VYZULA a Rudolf NENUTIL
Vydání
1. vyd. Budapešť, 19th meeting of European Association For Cancer Research, od s. 207-207, 1 s. 2006
Nakladatel
European Association for Cancer Research
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Organizační jednotka
Lékařská fakulta
Klíčová slova anglicky
serum her2/neu;trastuzumab;breast cancer
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 1. 2008 18:19, prof. MUDr. Marek Svoboda, Ph.D.
V originále
Introduction: HER-2/neu, the oncoprotein from growth factor receptor family, is overexpressed in primary tumor tissue in approximately 30% patients with breast cancer. Extracellular domain of this oncoprotein is released into the circulation and by recent studies it has prognostic and predictive signification similar to HER-2/neu in tissue. Material and Methods: We evaluated dynamics of serum HER-2/neu (S_HER2) changes during the course of trastuzumab-based therapy, by the specific antibody directed against the extracellular domain (ELISA, Oncogene Science, USA). We had opportunity to repeatedly tested S_HER2 in 69 patients with metastatic breast cancer undergoing treatment in years 200-2005 in our institute. Results: Patients without the response to treatment at the time of the first restaging (3 months), had significantly elevated S_HER2 levels, that generally do not drop below the discriminatory level. The patients with the best clinical response achieved (complete or partial response) are commonly S_HER2 negative after 3 months of the therapy, even if they were serum-positive at the beginning of the treatment. Serum CA15-3 and CEA levels do not show significant differences in this two groups of responders. Likewise in longitudinally monitoring over the time course of trastuzumab-based treatment the predictor of the therapy failure is mainly elevated S_HER2. Conclusion: Monitoring the concentrations of serum HER2 during the trastuzumab therapy appears to be a suitable therapy efficacy validation parameter both at the start and during long-term therapy application. Acknowledgements: The work was supported by grants from IGA MZCR: No. NR/8335-3 and No. NR/8270-3.
Česky
Introduction: HER-2/neu, the oncoprotein from growth factor receptor family, is overexpressed in primary tumor tissue in approximately 30% patients with breast cancer. Extracellular domain of this oncoprotein is released into the circulation and by recent studies it has prognostic and predictive signification similar to HER-2/neu in tissue. Material and Methods: We evaluated dynamics of serum HER-2/neu (S_HER2) changes during the course of trastuzumab-based therapy, by the specific antibody directed against the extracellular domain (ELISA, Oncogene Science, USA). We had opportunity to repeatedly tested S_HER2 in 69 patients with metastatic breast cancer undergoing treatment in years 200-2005 in our institute. Results: Patients without the response to treatment at the time of the first restaging (3 months), had significantly elevated S_HER2 levels, that generally do not drop below the discriminatory level. The patients with the best clinical response achieved (complete or partial response) are commonly S_HER2 negative after 3 months of the therapy, even if they were serum-positive at the beginning of the treatment. Serum CA15-3 and CEA levels do not show significant differences in this two groups of responders. Likewise in longitudinally monitoring over the time course of trastuzumab-based treatment the predictor of the therapy failure is mainly elevated S_HER2. Conclusion: Monitoring the concentrations of serum HER2 during the trastuzumab therapy appears to be a suitable therapy efficacy validation parameter both at the start and during long-term therapy application. Acknowledgements: The work was supported by grants from IGA MZCR: No. NR/8335-3 and No. NR/8270-3.
Návaznosti
| NR8335, projekt VaV |
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