Detailed Information on Publication Record
2008
Altered expression of miR-21, miR-31, miR-143 and miR-145 is related to clinicopathologic features of colorectal cancer
SLABÝ, Ondřej, Marek SVOBODA, Pavel FABIAN, Tamara ŠMERDOVÁ, Dana KNOFLÍČKOVÁ et. al.Basic information
Original name
Altered expression of miR-21, miR-31, miR-143 and miR-145 is related to clinicopathologic features of colorectal cancer
Name in Czech
Altered expression of miR-21, miR-31, miR-143 and miR-145 is related to clinicopathologic features of colorectal cancer
Name (in English)
Altered expression of miR-21, miR-31, miR-143 and miR-145 is related to clinicopathologic features of colorectal cancer
Authors
SLABÝ, Ondřej, Marek SVOBODA, Pavel FABIAN, Tamara ŠMERDOVÁ, Dana KNOFLÍČKOVÁ, Markéta BEDNAŘÍKOVÁ, Rudolf NENUTIL and Rostislav VYZULA
Edition
Oncology, Basel, S. Karger AG, 2008, 0030-2414
Other information
Language
Czech
Type of outcome
Článek v odborném periodiku
Field of Study
30200 3.2 Clinical medicine
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 1.336
Organization unit
Faculty of Medicine
UT WoS
000252590200021
Keywords in English
microRNA; colorectal cancer; pathogenesis
Tags
International impact, Reviewed
Změněno: 29/1/2008 01:25, prof. MUDr. Marek Svoboda, Ph.D.
V originále
Objectives: Development and metastases of colorectal cancer (CRC) are characterized by multiple genetic alterations. MicroRNAs (miRNAs) are endogenously expressed regulatory noncoding RNAs. Previous, mainly preclinical studies showed altered expression levels of several miRNAs in CRC. Methods: In our study, the expression levels of miR-21, miR-31, miR-143 and miR-145 in 29 primary colorectal carcinomas and 6 non-tumor adjacent tissue specimens were examined by real-time polymerase chain reaction. miRNA expression levels were also correlated with commonly used clinicopath-ologic features of CRC. Results: Expression levels of analyzed miRNAs significantly differed among tumors and adjacent non-tumor tissues: miR-21 (p = 0.0001) and miR-31 (p = 0.0006) were upregulated, and miR-143 (p = 0.011) and miR-145 (p = 0.003) were downregulated in tumors. For the first time, a high expression of miR-21 was associated with lymph node positivity (p = 0.025) and the development of distant metastases (p = 0.009) in CRC patients. Thus, expression of miR-21 correlated with CRC clinical stage (p = 0.032). Furthermore, tumors >50 mm in maximal tumor diameter were characterized by lower expression of miR-143 (p = 0.006) and miR-145 (p = 0.003). We found no correlation between analyzed miRNAs and serum levels of carcinoembryonic antigen. Conclusion: Our results suggest possible roles of miR-21, miR-31, miR-143 and miR-145 in CRC.
In English
Objectives: Development and metastases of colorectal cancer (CRC) are characterized by multiple genetic alterations. MicroRNAs (miRNAs) are endogenously expressed regulatory noncoding RNAs. Previous, mainly preclinical studies showed altered expression levels of several miRNAs in CRC. Methods: In our study, the expression levels of miR-21, miR-31, miR-143 and miR-145 in 29 primary colorectal carcinomas and 6 non-tumor adjacent tissue specimens were examined by real-time polymerase chain reaction. miRNA expression levels were also correlated with commonly used clinicopath-ologic features of CRC. Results: Expression levels of analyzed miRNAs significantly differed among tumors and adjacent non-tumor tissues: miR-21 (p = 0.0001) and miR-31 (p = 0.0006) were upregulated, and miR-143 (p = 0.011) and miR-145 (p = 0.003) were downregulated in tumors. For the first time, a high expression of miR-21 was associated with lymph node positivity (p = 0.025) and the development of distant metastases (p = 0.009) in CRC patients. Thus, expression of miR-21 correlated with CRC clinical stage (p = 0.032). Furthermore, tumors >50 mm in maximal tumor diameter were characterized by lower expression of miR-143 (p = 0.006) and miR-145 (p = 0.003). We found no correlation between analyzed miRNAs and serum levels of carcinoembryonic antigen. Conclusion: Our results suggest possible roles of miR-21, miR-31, miR-143 and miR-145 in CRC.
Links
| NR9076, research and development project |
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