Related Experiment Video
Updated: Jun 14, 2026
08:26
Semi-quantitative Detection of RNA-dependent RNA Polymerase Activity of Human Telomerase Reverse Transcriptase Protein
Published on: June 12, 2018
[Telomerase level versus spliced hTERT-specific RNA forms in cervical carcinoma]
Voprosy Onkologii
|April 6, 2010
Summary
This study investigated human papillomavirus (HPV) and telomerase as potential biomarkers for cervical cancer staging. Researchers found no significant differences in these markers across different clinical stages of cervical carcinoma.
Area of Science:
- Oncology
- Virology
- Molecular Biology
Context:
- Cervical carcinoma is a significant global health concern, often linked to human papillomavirus (HPV) infections.
- Identifying reliable molecular markers is crucial for accurate clinical staging and treatment of cervical cancer.
- Telomerase and its catalytic subunit (hTERT) are implicated in cancer progression.
Purpose:
- To identify potential molecular markers for staging cervical carcinoma.
- To assess the presence of HPV genome, telomerase activity, and hTERT expression in cervical tumors.
- To correlate these markers with different clinical stages of the disease.
Summary:
- HPV type 16 genome was detected in 73% of the 89 analyzed cervical tumors.
- Telomerase activity (TRAP) and hTERT-specific RNA were found in all tumor samples.
- No significant differences in HPV, telomerase, or hTERT expression were observed between different clinical stages of cervical carcinoma.
Impact:
- The findings suggest that HPV presence, telomerase activity, and hTERT expression may not be suitable independent molecular markers for differentiating clinical stages of cervical cancer.
- Further research may be needed to identify more specific biomarkers for cervical cancer staging.
- This study contributes to understanding the molecular landscape of HPV-associated cervical carcinoma.
Related Concept Videos
02:41Telomeres and Telomerase
In eukaryotic DNA replication, a single-stranded DNA fragment remains at the end of a chromosome after the removal of the final primer. This section of DNA cannot be replicated in the same manner as the rest of the strand because there is no 3’ end to which the newly synthesized DNA can attach. This non-replicated fragment results in gradual loss of the chromosomal DNA during each cell duplication. Additionally, it can induce a DNA damage response by enzymes that recognize single-stranded DNA.
02:41Telomeres and Telomerase
In eukaryotic DNA replication, a single-stranded DNA fragment remains at the end of a chromosome after the removal of the final primer. This section of DNA cannot be replicated in the same manner as the rest of the strand because there is no 3’ end to which the newly synthesized DNA can attach. This non-replicated fragment results in gradual loss of the chromosomal DNA during each cell duplication. Additionally, it can induce a DNA damage response by enzymes that recognize single-stranded DNA.
03:18Non-LTR Retrotransposons
As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
01:32RNA Splicing
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...