Normal and Tumour Tissue mRNA Expressions of Telomerase Complex Genes in Several Types of Cancer

Normal and Tumour Tissue mRNA Expressions of Telomerase Complex Genes in Several Types of Cancer

Aims: To investigate the changes in mRNA expression levels of telomerase-related significant proteins in several types of cancer. Methods: Human telomerase reverse transcriptase, pontin, reptin and dyskerin expressions were measured in normal and tumour tissues obtained from 26 patients with colorectal, breast and gastric cancers, using the realtime reverse transcriptase-polymerase chain reaction method. Results: For all patients, no significant difference was found in mRNA expressions of human telomerase reverse transcriptase and dyskerin (p>0.05), although their levels in tumour tissues were found to be higher than in normal tissues. However, pontin and reptin mRNA expressions were significantly higher in tumour tissues than in normal tissues (p

___

  • Venteicher AS, Meng Z, Mason PJ, Veenstra TD, Artandi SE. Identification of ATPases pontin and reptin as telomerase components essential for holoenzyme assembly. Cell 2008;132:945-57.
  • Baek SH. When ATPases pontin and reptin met telomerase. Dev Cell 2008;459-61.
  • Wang Z, Xu J, Geng X, Zhang W. Analysis of DNA methylation status of the promoter of human telomerase reverse transcriptase in gastric carcinogenesis. Arch Med Res 2010;41:1-6.
  • Shay JW, Wright WE. Telomerase therapeutics for cancer: challenges and new directions. Nat Rev Drug Discov 2006;5:577-84.
  • Mitchell JR, Wood E, Collins K. A telomerase component is defective in the human disease dyskeratosis congenita. Nature 1999;402:551-5.
  • Montanaro L, Calienni M, Ceccarelli C, Santini D, Taffurelli M, Pileri S, et al. Relationship between dyskerin expression and telomerase activity in human breast cancer. Cell Oncol 2008;30:483-90.
  • Neuwald AF, Aravind L, Spouge JL, Koonin EV. AAA+: A class of chaperone-like ATPases associated with the assembly, operation, and disassembly of protein complexes. Genome Res 1999;927-43.
  • Kim T, Franke D, Svergun DI, Kim KK. SAXS analyses of reption in solution. [Internet]. 2007. [cited 2009 Jun 29]. Available from: http://hasyweb.desy. de/science/annual_reports/2007_report/part2/contrib/73/20982.pdf
  • Jha S, Dutta A. RVB1/RVB2: running rings around molecular biology. Mol Cell 2009;34:521-33.
  • Greene FL, Compton CC, Fritz AG, Shah JP, Winchester DP. AJCC cancer staging atlas, Springer Science+Business Media Inc, Chicago: USA; 2006.
  • Dikmen G, Doğan P. Telomeraz ve kanser. Turk Klin Tip Bilim 2003;23:334-41.
  • Flavin P, Redmond A, McBryan J, Cocchiglia S, Tibbitts P, Fahy-Browne P, et al. RuvBl2 cooperates with Ets2 to transcriptionally regulate hTERT in colon cancer. FEBS Lett 2011;585:2537-44.
  • Ahmed A, Tollefsbol TO. Telomerase, telomerase inhibition, and cancer. J Anti Aging Med 2003;6:315-25.
  • Cairney CJ, Keith WN. Telomerase redefined: Integrated regulation of hTR and hTERT for telomere maintenance and telomerase activity. Biochimie 2008;90:13-23.
  • Palmqvist R, Zhang A, Xu D, Golovleva I, Norrback KF, Gruber A, et al. hTERT gene copy number is not associated with hTERT RNA expression or telomerase activity in colorectal cancer. Int J Cancer 2005;116:395- 400.
  • Saleh S, Lam AK, Ho YH. Real-time PCR quantification of human telomerase reverse transcriptase (hTERT) in colorectal cancer. Pathology 2008;40:25-30.
  • Elkak A, Mokbel R, Wilson C, Jiang WG, Newbold RF, Mokbel K. hTERT mRNA expression is associated with a poor clinical outcome in human breast cancer. Anticancer Res 2006;26:4901-4.
  • Montanaro L, Brigotti M, Clohessy J, Barbieri S, Ceccarelli C, Santini D, et al. Dyskerin expression influences the level of ribosomal RNA pseudo- uridylation and telomerase RNA component in human breast cancer. J Pathol 2006;210:10-8.
  • Huber O, Ménard L, Haurie V, Nicou A, Taras D, Rosenbaum J. Pontin and reptin, two related ATPases with multiple roles in cancer. Cancer Res 2008;68:6873-6.
  • Li W, Zeng J, Li Q, Zhao L, Liu T, Björkholm M, et al. Reptin is required for the transcription of telomerase reverse transcriptase and over-expressed in gastric cancer. Mol Cancer 2010;9:132.
Balkan Medical Journal-Cover
  • ISSN: 2146-3123
  • Yayın Aralığı: 6
  • Başlangıç: 2015
  • Yayıncı: Galenos Yayınevi
Sayıdaki Diğer Makaleler

Normal and Tumour Tissue mRNA Expressions of Telomerase Complex Genes in Several Types of Cancer

Ülkü ARSLAN YALÇINTAŞ, Emel ÇALIŞKAN CAN, M. Can ATALAY, Ece Miser SALİHOĞLU, H. Bolkan ŞİMŞEK, Sevgi AKAYDIN YARDIM

Association Between the Inflammatory Biomarkers and Left Ventricular Systolic Dysfunction in Patients with Exacerbations of Chronic Obstructive Pulmonary Disease

Ljiljana ANDRİJEVİC, Senka MİLUTİNOV, Ilija ANDRİJEVİC, Daniela JOKİC, Marija VUKOJA

Non-thrombotic Pulmonary Embolism Due to Liver Hydatic Cyst: A Case Report

Mustafa Talip ŞENER, Ahmet ŞAHPAZ, Azem İREZ, Hatice GÜLBEYAZ, Ahmet Nezih KÖK

Salivary Gland Choristoma of the Larynx

Recep BEDİR, Engin DURSUN, İbrahim ŞEHİTOĞLU, Rukiye YILMAZ

Influenza and Pneumonia Vaccination Rates and Factors Affecting Vaccination among Patients with Chronic Obstructive Pulmonary Disease

Aslı DİLEKTAŞLI GÖREK, Banu Musaffa SALEPÇİ, Mustafa DÜGER, Ülkü AKTÜRK AKA, Nagihan KOÇAK DURMUŞ, Nuray OKTAY, Hale TAŞYIKAN ARIK, Aysun ŞENGÜL

A Pott's Puffy Tumor Associated with Epidural - Cutaneous Fistula and Epidural Abscess: Case Report

Aleksandar PERİC, Milanko MİLOJEVİC, Drazen IVETİC

Book Review: Surgical Instruments from Allianoi D. Baykan, Surgical Instruments from Allianoi, İstanbul, 2012, Institutum Turcicum Scientiae Antiquitatis, Studia Ad Orientem Antiquum-2, 210 pages (along with the summary in English). ISBN: 978-605-4701-12-4.

Ergün KARACA

Hyoid Bone and Thyroid Cartilage Metastases from Sigmoid Colon Adenocarcinoma: A Case Report

Djurdja BRACANOVİC, Vesna VUKOVİC, Aleksa JANOVİC, Davorin RADOSAVLJEVİC, Zoran RAKOCEVİC

Retroauricular Approach for Targeted Cochlear Therapy Experiments in Wistar Albino Rats

Mustafa Kürşat GÖKCAN, Emre OCAK, Selçuk MÜLAZIMOĞLU, Gülşah KAYGUSUZ

Lack of Association Between Toll-like Receptor 2 Polymorphisms (R753Q and A-16934T) and Atopic Dermatitis in Children from Thrace Region of Turkey

Hilmi TOZKIR, Mehtap YAZICIOĞLU, Hakan GÜRKAN, Adnan GÖRGÜLÜ, Ceren CAN, Necdet Hilmi SÜT