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Updated: Apr 16, 2026

Extraction of Histones from Clinical Specimens for Epigenetic Profiling by Mass Spectrometry
Published on: November 21, 2025
Altered expression of histone deacetylases in cancer
Diana Montezuma1, Rui Manuel Ferreira Henrique2, Carmen Jerónimo3
1Department of Pathology, Cancer Biology & Epigenetics Group, Research Center, Portuguese Oncology Institute-Porto (Cl-IPO-Porto), Rua Dr. Antonio Bernardino Almeida, 4200-072, Porto, Portugal.
Abstract:
Epigenetic mechanisms, including histone deacetylation, are commonly deregulated in cancer. Histone deacetylases (HDACs) play an important role in tumorigenesis and their value as therapeutic targets has been under intense investigation in recent years. In addition to classical HDACs (HDAC classes I, II, and IV), sirtuins (class III HDACs) are currently in the spotlight of cancer research showing promise as cancer biomarkers and therapeutic targets. Translating research knowledge into the clinical setting is, however, a challenging and demanding task. This review describes the association between HDAC deregulation and cancer promotion and highlights recent advances in the use of HDAC inhibitors in the management of neoplastic diseases, with emphasis on urological tumors. Sirtuins' bivalent role in tumor development and therapeutic agents targeting these molecules will be also addressed.
Insights
Histone deacetylases (HDACs) are key in cancer development. This review covers HDAC inhibitors for cancer therapy, focusing on urological tumors and sirtuins.
Area of Science:
- Oncology
- Epigenetics
- Molecular Biology
Background:
- Epigenetic alterations, particularly histone deacetylation, are frequently observed in cancer.
- Histone deacetylases (HDACs) are implicated in tumorigenesis and are actively explored as therapeutic targets.
- Sirtuins (class III HDACs) are gaining attention as potential cancer biomarkers and therapeutic agents.
Purpose of the Study:
- To review the link between HDAC deregulation and cancer promotion.
- To highlight advancements in HDAC inhibitor therapy for neoplastic diseases, especially urological cancers.
- To discuss the dual role of sirtuins in tumor development and targeted therapies.
Main Methods:
- Literature review of epigenetic mechanisms in cancer.
- Analysis of current research on HDAC inhibitors in preclinical and clinical settings.
- Focus on sirtuin function and therapeutic targeting strategies.
Main Results:
- HDAC deregulation is associated with cancer progression.
- HDAC inhibitors show therapeutic potential, particularly in urological malignancies.
- Sirtuins exhibit complex roles in cancer, offering both challenges and opportunities for treatment.
Conclusions:
- HDAC inhibitors represent a promising therapeutic avenue for cancer treatment.
- Targeting sirtuins requires a nuanced approach due to their multifaceted roles.
- Further research is needed to translate HDAC-targeted therapies into effective clinical practice.
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