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Updated: Jan 21, 2026

Chromogenic In Situ Hybridization as a Tool for HPV-Related Head and Neck Cancer Diagnosis
Published on: June 14, 2019
Altered microRNA processing proteins in HPV-induced cancers
Barbara C Snoek1, Iris Babion1, Danijela Koppers-Lalic2
1Amsterdam UMC, Vrije Universiteit Amsterdam, Pathology, Cancer Center Amsterdam, De Boelelaan 1117, Amsterdam, Netherlands.
Abstract:
High-risk human papilloma virus (hrHPV) infections are associated with the development of anogenital cancers, in particular cervical cancer, and a subset of head and neck cancers. Previous studies have shown that microRNAs (miRNAs) contribute to the development and progression of HPV-induced malignancies. miRNAs are small non-coding RNAs that exist as multiple length and sequence variants, termed isomiRs. Efficient processing of miRNAs and generation of isomiRs is accomplished by several processing proteins. Deregulation of Drosha, AGO2, and TENT2, among others, has been observed in HPV-induced cancers and was even found at the precancerous stage. This suggests that miRNA processing proteins may be involved during early cancer development and that the generated isomiRs could provide promising biomarkers for early cancer diagnosis.
Insights
High-risk human papilloma virus (hrHPV) infections drive cancer. Deregulated miRNA processing proteins and their variants (isomiRs) may be key in early cancer development and diagnosis.
Area of Science:
- Oncology
- Molecular Biology
- Virology
Background:
- High-risk human papilloma virus (hrHPV) infections are linked to anogenital and head and neck cancers.
- MicroRNAs (miRNAs) and their variants (isomiRs) are implicated in the development and progression of HPV-induced malignancies.
- Specific miRNA processing proteins, including Drosha, AGO2, and TENT2, show deregulation in HPV-related cancers.
Purpose of the Study:
- To investigate the role of miRNA processing proteins and their generated isomiRs in the early stages of HPV-induced cancer development.
- To explore the potential of isomiRs as biomarkers for early cancer diagnosis.
Main Methods:
- Analysis of miRNA processing protein deregulation in HPV-induced cancers.
- Characterization of isomiR profiles in precancerous and cancerous lesions.
- Correlation of protein deregulation with isomiR generation and cancer progression.
Main Results:
- Deregulation of key miRNA processing proteins (Drosha, AGO2, TENT2) observed in HPV-induced cancers, even at precancerous stages.
- Evidence suggests these proteins are involved in early cancer development.
- Generated isomiRs show potential as biomarkers for early cancer detection.
Conclusions:
- MiRNA processing proteins play a significant role in the early development of HPV-related cancers.
- IsomiRs represent promising biomarkers for the early diagnosis of HPV-associated malignancies.
- Targeting miRNA processing pathways could offer novel therapeutic strategies.
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