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[Screening and identification of human telomerase reverse transcriptase epitopes from random phage display peptide
Pei-hong Miao1, Bei-yi Liu, Shan-gen Zheng
1Department of Pharmacology, First Military Medical University, Guangzhou 510515, China. miaoph@fimmu.com
Di 1 Jun Yi Da Xue Xue Bao = Academic Journal of the First Medical College of PLA
|March 26, 2004
Summary
Researchers identified eleven novel epitopes that mimic human telomerase reverse transcriptase (hTERT). These hTERT epitopes are valuable for developing small-molecule inhibitors targeting this enzyme.
Area of Science:
- Biochemistry
- Molecular Biology
- Immunology
Context:
- Human telomerase reverse transcriptase (hTERT) is a key component of telomerase, an enzyme critical for maintaining telomere length.
- Dysregulation of hTERT is implicated in cellular immortalization and cancer development.
- Understanding hTERT epitopes is essential for developing targeted therapies.
Purpose:
- To identify and characterize novel epitopes of human telomerase reverse transcriptase (hTERT).
- To utilize phage display technology for epitope discovery.
- To validate the binding specificity and mimicry potential of identified epitopes.
Summary:
- A random phage-displayed dodecapeptide library was screened using an anti-hTERT antibody.
- Positive phage clones were identified through ELISA, antibody blocking, and competitive inhibition assays.
- Eleven distinct sequences, rich in histone and hydrophilic amino acids, were identified as potential hTERT epitopes.
Impact:
- The identified epitopes effectively mimic hTERT, providing valuable tools for further research.
- These epitopes can be instrumental in the development of small-molecule inhibitors targeting hTERT.
- This work contributes to the ongoing efforts in cancer therapy and molecular diagnostics.