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In Vitro Ubiquitination and Deubiquitination Assays of Nucleosomal Histones
Published on: July 25, 2019
Ubiquitination of Immune System and Cancer Therapy
Yizhou Du1, Huiyuan Zhang1, Hongbo Hu2,3
1Center for Immunology and Hematology, Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
Abstract:
Ubiquitination is a post-translational modification mechanism which regulates a variety of signaling pathways and crucial biological processes. It has long been known that ubiquitination regulates the fundamental cellular processes through the induction of proteasomal degradation of target proteins. Meanwhile, the nondegradative types of polyubiquitination modification have been appreciated as important regulatory machinery by modulating the activity or subcellular localization of key signaling proteins. The function of ubiquitination plays an important role in immune responses, which helps to maintain the stability of the internal environment and to control over protein stability and function and are thus critical for the regulation of both innate and adaptive immunity. Furthermore, ubiquitination also regulates both tumor-suppressing and tumor-promoting pathways in cancer. In this review, we will discuss recent progress regarding how ubiquitination regulates immune responses, focusing on Toll-like receptors signaling in innate immunity, T cell activation, TCR signaling, and tumor immunotherapy.
Insights
Ubiquitination, a key protein modification, regulates immune responses and cancer by controlling protein stability and signaling pathways. This review explores its role in innate immunity, T cell activation, and cancer immunotherapy.
Area of Science:
- Molecular Biology
- Immunology
- Biochemistry
- Cancer Research
Background:
- Ubiquitination is a crucial post-translational modification regulating diverse cellular processes.
- It controls protein stability and function through proteasomal degradation and non-degradative signaling.
- Ubiquitination is vital for maintaining immune homeostasis and regulating both innate and adaptive immunity.
Purpose of the Study:
- To review recent advancements in understanding ubiquitination's role in immune responses.
- To highlight the impact of ubiquitination on Toll-like receptor signaling in innate immunity.
- To discuss ubiquitination's function in T cell activation, TCR signaling, and cancer immunotherapy.
Main Methods:
- Literature review of recent scientific publications.
- Analysis of signaling pathways involving ubiquitination in immunity and cancer.
- Focus on Toll-like receptors, T cell activation, and tumor immunotherapy mechanisms.
Main Results:
- Ubiquitination critically regulates immune cell function and inflammatory responses.
- Non-degradative ubiquitination modulates key signaling proteins' activity and localization.
- Ubiquitination influences both tumor suppression and promotion, impacting cancer progression.
Conclusions:
- Ubiquitination is a central regulator of immune signaling and cellular processes.
- Targeting ubiquitination pathways offers potential therapeutic strategies for immune disorders and cancer.
- Further research into ubiquitination's complex roles is essential for advancing immunotherapy and cancer treatment.
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