Transcript expression and genetic variability analysis of caspases in breast carcinomas suggests CASP9 as the most interesting target
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28150%2F17%3A63518096" target="_blank" >RIV/70883521:28150/17:63518096 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11120/17:43911995 RIV/00216208:11130/17:10359513 RIV/61989592:15110/17:73583822 RIV/00064203:_____/17:10359513 a 2 dalších
Výsledek na webu
<a href="http://dx.doi.org/10.1515/cclm-2016-0271" target="_blank" >http://dx.doi.org/10.1515/cclm-2016-0271</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/cclm-2016-0271" target="_blank" >10.1515/cclm-2016-0271</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Transcript expression and genetic variability analysis of caspases in breast carcinomas suggests CASP9 as the most interesting target
Popis výsledku v původním jazyce
Background: Apoptosis plays a critical role in cancer cell survival and tumor development. We provide a hypothesis- generating screen for further research by exploring the expression profile and genetic variability of caspases (2, 3, 7, 8, 9, and 10) in breast carcinoma patients. This study addressed isoform-specific caspase transcript expression and genetic variability in regulatory sequences of caspases 2 and 9. Methods: Gene expression profiling was performed by quantitative real-time PCR in tumor and paired non-malignant tissues of two independent groups of patients. Genetic variability was determined by high resolution melting, allelic discrimination, and sequencing analysis in tumor and peripheral blood lymphocyte DNA of the patients. Results: CASP3 A+ B and S isoforms were over-expressed in tumors of both patient groups. The CASP9 transcript was down-regulated in tumors of both groups of patients and significantly associated with expression of hormonal receptors and with the presence of rs4645978-rs2020903rs4646034 haplotype in the CASP9 gene. Patients with a low intratumoral CASP9A/B isoform expression ratio (predicted to shift equilibrium towards anti-apoptotic isoform) subsequently treated with adjuvant chemotherapy had a significantly shorter disease-free survival than those with the high ratio (p = 0.04). Inheritance of CC genotype of rs2020903 in CASP9 was associated with progesterone receptor expression in tumors (p = 0.003). Conclusions: Genetic variability in CASP9 and expression of its splicing variants present targets for further study.
Název v anglickém jazyce
Transcript expression and genetic variability analysis of caspases in breast carcinomas suggests CASP9 as the most interesting target
Popis výsledku anglicky
Background: Apoptosis plays a critical role in cancer cell survival and tumor development. We provide a hypothesis- generating screen for further research by exploring the expression profile and genetic variability of caspases (2, 3, 7, 8, 9, and 10) in breast carcinoma patients. This study addressed isoform-specific caspase transcript expression and genetic variability in regulatory sequences of caspases 2 and 9. Methods: Gene expression profiling was performed by quantitative real-time PCR in tumor and paired non-malignant tissues of two independent groups of patients. Genetic variability was determined by high resolution melting, allelic discrimination, and sequencing analysis in tumor and peripheral blood lymphocyte DNA of the patients. Results: CASP3 A+ B and S isoforms were over-expressed in tumors of both patient groups. The CASP9 transcript was down-regulated in tumors of both groups of patients and significantly associated with expression of hormonal receptors and with the presence of rs4645978-rs2020903rs4646034 haplotype in the CASP9 gene. Patients with a low intratumoral CASP9A/B isoform expression ratio (predicted to shift equilibrium towards anti-apoptotic isoform) subsequently treated with adjuvant chemotherapy had a significantly shorter disease-free survival than those with the high ratio (p = 0.04). Inheritance of CC genotype of rs2020903 in CASP9 was associated with progesterone receptor expression in tumors (p = 0.003). Conclusions: Genetic variability in CASP9 and expression of its splicing variants present targets for further study.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
30107 - Medicinal chemistry
Návaznosti výsledku
Projekt
<a href="/cs/project/NT14055" target="_blank" >NT14055: Studie genetických faktorů korelujících s prognózou karcinomu prsu</a><br>
Návaznosti
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Clinical Chemistry and Laboratory Medicine
ISSN
1434-6621
e-ISSN
—
Svazek periodika
55
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
DE - Spolková republika Německo
Počet stran výsledku
12
Strana od-do
111-122
Kód UT WoS článku
000388930700021
EID výsledku v databázi Scopus
2-s2.0-84998694303