Related Experiment Video
Updated: Aug 25, 2025

08:26
Semi-quantitative Detection of RNA-dependent RNA Polymerase Activity of Human Telomerase Reverse Transcriptase Protein
Published on: June 12, 2018
10.0K
Sensitive bioanalytical methods for telomerase activity detection: a cancer biomarker
Nasim Afshari1, Moaed E Al-Gazally2, Iroda Rasulova3,4
1Department of Microbiology, Islamic Azad University Science & Research Branch, Tehran, Iran.
Analytical Methods : Advancing Methods and Applications
|October 18, 2022
Summary
Telomerase enzyme activity is crucial in tumors and stem cells, serving as a potential cancer biomarker. Recent bioanalytical methods using nanomaterials offer sensitive and specific detection for diagnostic and therapeutic applications.
Area of Science:
- Biochemistry
- Biotechnology
- Nanomedicine
Background:
- Telomerase is a key enzyme maintaining telomere length, active in cancer cells, stem cells, and gametes.
- Elevated telomerase activity is a significant biomarker for cancer diagnosis and therapeutic strategies.
- Traditional detection methods have limitations, driving the need for advanced bioanalytical approaches.
Purpose of the Study:
- To review recent advancements in bioanalytical methods for telomerase activity detection.
- To highlight the application of various nanomaterials in developing sensitive telomerase detection platforms.
- To discuss prominent analytical techniques employed in these studies.
Main Methods:
- Review of recent scientific literature on telomerase detection using nanomaterials.
- Focus on optical, electrochemical, and quartz crystal microbalance (QCM) based bioanalytical devices.
- Analysis of studies employing diverse nanomaterial platforms for enhanced sensitivity and specificity.
Main Results:
- Nanomaterial-based bioanalytical devices demonstrate high sensitivity and specificity for telomerase detection.
- Optical, electrochemical, and QCM methods show significant promise for practical applications.
- These advanced methods offer advantages in cost-effectiveness and simplicity compared to conventional assays.
Conclusions:
- Bioanalytical devices utilizing nanomaterials represent a powerful tool for telomerase activity detection.
- These methods hold great potential for early cancer diagnosis and monitoring therapeutic responses.
- Further development in this area can lead to improved clinical outcomes.
Related Concept Videos
Telomeres and Telomerase
23.8K
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...
23.8K
Replicative Cell Senescence
3.7K
Replicative cell senescence is a property of cells that allows them to divide a finite number of times throughout the organism's lifespan while preventing excessive proliferation. Replicative senescence is associated with the gradual loss of the telomere — short, repetitive DNA sequences found at the end of the chromosomes. Telomeres are bound by a group of proteins to form a protective cap on the ends of chromosomes. Embryonic stem cells express telomerase — an enzyme that adds...
3.7K

