ArticleCell & bioscience2019
The PinX1/NPM interaction associates with hTERT in early-S phase and facilitates telomerase activation.
Article in Cell & bioscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 20 citations in OpenAlex.
- Silencing PinX1 enhances radiosensitivity and antitumor-immunity of radiotherapy in non-small cell lung cancer.Journal of translational medicine · 2024Article
- The Relevance of Telomerase and Telomere-Associated Proteins in B-Acute Lymphoblastic Leukemia.Genes · 2023Review
- Post-Transcriptional and Post-Translational Modifications in Telomerase Biogenesis and Recruitment to Telomeres.International journal of molecular sciences · 2023Review
- Telomerase Biogenesis and Activities from the Perspective of Its Direct Interacting Partners.Cancers · 2020Review
- Downregulation of hTERT contributes to ovarian cancer apoptosis and inhibits proliferation of ovarian cancer cells.Translational cancer research · 2020Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTelomere maintenance is an important factor in tumorigenesis. PinX1 is a potent telomerase regulator which also involves in telomerase loading to telomeres. Nucleophosmin (NPM) can partially attenuate PinX1 inhibition of telomerase activity and NPM loading to hTERT requires PinX1. However, the role of the PinX1/NPM interaction in telomerase activity is not fully understood.
methodThe long-term effects of PinX1 and NPM down-regulation on telomere length were investigated by TRF assay. The localization of the PinX1/NPM association and the NPM/PinX1/hTERT complex formation were examined by immunofluorescence studies.
resultsConcurrent long-term down-regulation of PinX1 and NPM led to a substantial decrease in telomere length. The interaction with PinX1 was crucial in NPM localization in the nucleolus during the S phase. PinX1 and NPM associated throughout S phase and the NPM/PinX1/hTERT complex formation peaked during the early-S phase. The PinX1/NPM interaction was shown to localize away from Cajal Bodies at the start of S phase.
conclusionPinX1/NPM interaction is important in telomerase regulation during catalysis. NPM is recruited to hTERT by PinX1 and is required in the proposed telomerase modulating unit to activate telomerase when telomere extension occurs during S phase.
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