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The role of ABC transporters in progression and clinical outcome of colorectal cancer
I. Hlavata, B. Mohelnikova-Duchonova, R. Vaclavikova, V. Liska, P. Pitule, P. Novak, J. Bruha, O. Vycital, L. Holubec, V. Treska, P. Vodicka, P. Soucek,
Language English Country England, Great Britain
Document type Journal Article, Research Support, Non-U.S. Gov't
Grant support
NS10230
MZ0
CEP Register
Digital library NLK
Full text - Article
Source
E-resources NLK Online Full text
Free Medical Journals from 1996 to 1 year agoOpen Access Digital Library from 1996-01-01
Medline Complete (EBSCOhost) from 1996-01-01 to 1 year ago
Links
PubMed
22294766
DOI
10.1093/mutage/ger075
Knihovny.cz E-resources
- MeSH
- ATP-Binding Cassette Transporters genetics MeSH
- Chemotherapy, Adjuvant MeSH
- Antineoplastic Agents therapeutic use MeSH
- Colon metabolism MeSH
- Colorectal Neoplasms drug therapy genetics mortality MeSH
- Real-Time Polymerase Chain Reaction MeSH
- Middle Aged MeSH
- Humans MeSH
- RNA, Messenger genetics MeSH
- Neoplasm Metastasis MeSH
- Survival Rate MeSH
- Pilot Projects MeSH
- Reverse Transcriptase Polymerase Chain Reaction MeSH
- Prognosis MeSH
- Disease Progression MeSH
- Gene Expression Regulation, Neoplastic MeSH
- Rectum metabolism MeSH
- Aged MeSH
- Case-Control Studies MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Aged MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Worldwide, colorectal cancer (CRC) is the third most common cancer, with the highest mortality rates occurring in Central Europe. The use of chemotherapy to treat CRC is limited by the inter-individual variability in drug response and the development of cancer cell resistance. ATP-binding cassette (ABC) transporters play a crucial role in the development of resistance by the efflux of anticancer agents outside of cancer cells. The aim of this study was to explore transcript levels of all human ABCs in tumours and non-neoplastic control tissues from CRC patients collected before the first line of treatment by 5-fluorouracil (5-FU)-containing regimen. The prognostic potential of ABCs was evaluated by the correlation of transcript levels with clinical factors. Relations between transcript levels of ABCs in tumours and chemotherapy efficacy were also addressed. The transcript profile of all known human ABCs was assessed using real-time polymerase chain reaction with a relative standard curve. The majority of the studied ABCs were down-regulated or unchanged between tumours and control tissues. ABCA12, ABCA13, ABCB6, ABCC1, ABCC2 and ABCE1 were up-regulated in tumours versus control tissues. Transcript levels of ABCA12, ABCC7 and ABCC8 increased in direction from colon to rectum. Additionally, transcript levels of ABCB9, ABCB11, ABCG5 and ABCG8 followed the reverse significant trend, i.e. a decrease in direction from colon to rectum. The transcript level of ABCC10 in tumours correlated with the grade (P = 0.01). Transcript levels of ABCC6, ABCC11, ABCF1 and ABCF2 were significantly lower in non-responders to palliative chemotherapy in comparison with responders. The disease-free interval of patients treated by adjuvant chemotherapy was significantly shorter in patients with low transcript levels of ABCA7, ABCA13, ABCB4, ABCC11 and ABCD4. In conclusion, ABCC11 may be a promising candidate marker for a validation study on 5-FU therapy outcome.
Toxicogenomics Unit National Institute of Public Health Srobarova 48 Prague 10 100 42 Czech Republic
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- $a Worldwide, colorectal cancer (CRC) is the third most common cancer, with the highest mortality rates occurring in Central Europe. The use of chemotherapy to treat CRC is limited by the inter-individual variability in drug response and the development of cancer cell resistance. ATP-binding cassette (ABC) transporters play a crucial role in the development of resistance by the efflux of anticancer agents outside of cancer cells. The aim of this study was to explore transcript levels of all human ABCs in tumours and non-neoplastic control tissues from CRC patients collected before the first line of treatment by 5-fluorouracil (5-FU)-containing regimen. The prognostic potential of ABCs was evaluated by the correlation of transcript levels with clinical factors. Relations between transcript levels of ABCs in tumours and chemotherapy efficacy were also addressed. The transcript profile of all known human ABCs was assessed using real-time polymerase chain reaction with a relative standard curve. The majority of the studied ABCs were down-regulated or unchanged between tumours and control tissues. ABCA12, ABCA13, ABCB6, ABCC1, ABCC2 and ABCE1 were up-regulated in tumours versus control tissues. Transcript levels of ABCA12, ABCC7 and ABCC8 increased in direction from colon to rectum. Additionally, transcript levels of ABCB9, ABCB11, ABCG5 and ABCG8 followed the reverse significant trend, i.e. a decrease in direction from colon to rectum. The transcript level of ABCC10 in tumours correlated with the grade (P = 0.01). Transcript levels of ABCC6, ABCC11, ABCF1 and ABCF2 were significantly lower in non-responders to palliative chemotherapy in comparison with responders. The disease-free interval of patients treated by adjuvant chemotherapy was significantly shorter in patients with low transcript levels of ABCA7, ABCA13, ABCB4, ABCC11 and ABCD4. In conclusion, ABCC11 may be a promising candidate marker for a validation study on 5-FU therapy outcome.
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