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Updated: Oct 10, 2025

In Vitro Ubiquitination and Deubiquitination Assays of Nucleosomal Histones
Published on: July 25, 2019
The role of Ubiquitination in Apoptosis and Necroptosis
Jamie Z Roberts1, Nyree Crawford2, Daniel B Longley3
1The Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK. jroberts10@qub.ac.uk.
Abstract:
Cell death pathways have evolved to maintain tissue homoeostasis and eliminate potentially harmful cells from within an organism, such as cells with damaged DNA that could lead to cancer. Apoptosis, known to eliminate cells in a predominantly non-inflammatory manner, is controlled by two main branches, the intrinsic and extrinsic apoptotic pathways. While the intrinsic pathway is regulated by the Bcl-2 family members, the extrinsic pathway is controlled by the Death receptors, members of the tumour necrosis factor (TNF) receptor superfamily. Death receptors can also activate a pro-inflammatory type of cell death, necroptosis, when Caspase-8 is inhibited. Apoptotic pathways are known to be tightly regulated by post-translational modifications, especially by ubiquitination. This review discusses research on ubiquitination-mediated regulation of apoptotic signalling. Additionally, the emerging importance of ubiquitination in regulating necroptosis is discussed.
Insights
Ubiquitination regulates programmed cell death pathways like apoptosis and necroptosis. This review explores how ubiquitination controls these crucial cell death mechanisms, impacting tissue homeostasis and disease.
Area of Science:
- Molecular Biology
- Cell Biology
- Immunology
Background:
- Cell death pathways are essential for maintaining tissue homeostasis and eliminating damaged cells.
- Apoptosis, a non-inflammatory cell death, has intrinsic and extrinsic branches.
- Extrinsic apoptosis and necroptosis are regulated by tumor necrosis factor (TNF) receptor superfamily members.
Purpose of the Study:
- To review the role of ubiquitination in regulating apoptotic signaling pathways.
- To discuss the emerging importance of ubiquitination in necroptosis regulation.
Main Methods:
- Literature review of research on ubiquitination and cell death.
- Analysis of post-translational modifications in apoptosis and necroptosis.
Main Results:
- Ubiquitination is a key post-translational modification controlling apoptosis.
- Emerging evidence highlights ubiquitination's role in regulating necroptosis.
Conclusions:
- Ubiquitination plays a critical role in the precise control of both apoptosis and necroptosis.
- Understanding ubiquitination's role is vital for comprehending cell death regulation and its implications in disease.
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