[Classification and synthesis of ubiquitin-proteasome inhibitor]

Jing Li1, Da-Yong Zhang, Xiao-Ming Wu

  • 1School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.

Insights

Targeting protein degradation via the ubiquitin-proteasome pathway offers a novel cancer therapy. Proteasome inhibitors, like Bortezomib, are effective in treating multiple myeloma and other cancers.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Context:

  • The ubiquitin-proteasome pathway regulates protein degradation, a process often dysregulated in cancer cells.
  • Proteasome inhibition represents a novel therapeutic strategy for cancer treatment.
  • Bortezomib, a proteasome inhibitor, was FDA-approved for multiple myeloma in 2003.

Purpose:

  • To review the therapeutic applications of proteasome inhibition in cancer chemotherapy.
  • To discuss the structure and synthesis of various proteasome inhibitors.
  • To highlight the clinical development of proteasome inhibitors as anti-cancer agents.

Summary:

  • This paper reviews the use of proteasome inhibitors in cancer chemotherapy, focusing on their mechanism of action.
  • It details the development of synthetic and natural inhibitors targeting the 20S proteasome core particle.
  • Key clinical trial results and the synthesis of these anti-cancer agents are discussed.

Impact:

  • Proteasome inhibition expands therapeutic options for cancer patients.
  • This approach offers a new avenue for drug discovery in oncology.
  • Understanding proteasome inhibitor mechanisms aids in developing more effective cancer treatments.

Related Concept Videos

The Proteasome01:13

The Proteasome

Eukaryotic cells can degrade proteins through several pathways. One of the most important among these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3 (ubiquitin...
The Proteasome02:18

The Proteasome

Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
The Proteasome02:18

The Proteasome

Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps the cell eliminate the misfolded, damaged, or unwarranted cytoplasmic proteins in a highly specific manner.
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. A series of enzymes carry out the ubiquitination of the target proteins - E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3...
Regulated Protein Degradation02:58

Regulated Protein Degradation

It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Regulated Protein Degradation02:58

Regulated Protein Degradation

It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein.