PBEF/NAMPT/visfatin: a promising drug target for treating rheumatoid arthritis?

Mari Nowell1, Laura Evans, Anwen Williams

  • 1Institute of Infection & Immunity, School of Medicine, Cardiff University, Cardiff, UK. nowellma@cf.ac.uk

Insights

Nicotinamide phosphoribosyltransferase (NAMPT) inhibitors, primarily developed for cancer, show promise for treating rheumatoid arthritis. This study explores NAMPT

Area of Science:

  • Biochemistry
  • Immunology
  • Pharmacology

Background:

  • Nicotinamide phosphoribosyltransferase (NAMPT), also known as visfatin, is implicated in cancer cell survival.
  • NAMPT inhibitors are developed for cancer therapy.
  • The therapeutic potential of NAMPT inhibitors beyond oncology is underexplored.

Purpose of the Study:

  • To investigate the applicability of NAMPT inhibitors for treating rheumatoid arthritis.
  • To review the role of the NAMPT pathway in rheumatoid arthritis pathogenesis.
  • To summarize the current clinical trial status of NAMPT inhibitors.

Main Methods:

  • Literature review of NAMPT expression in healthy and diseased tissues.
  • Analysis of pathological mechanisms in rheumatoid arthritis involving the NAMPT pathway.
  • Review of clinical trial data for NAMPT inhibitors.

Main Results:

  • NAMPT is expressed in tissues relevant to rheumatoid arthritis.
  • The NAMPT pathway plays a role in rheumatoid arthritis pathogenesis.
  • Several NAMPT inhibitors are currently in clinical trials for various conditions.

Conclusions:

  • NAMPT inhibitors represent a potential therapeutic strategy for rheumatoid arthritis.
  • Further research is warranted to fully elucidate the role of NAMPT in rheumatoid arthritis.
  • Clinical trials of NAMPT inhibitors may provide insights into their efficacy for inflammatory diseases.

Related Concept Videos

NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The heterodimer of NF-κB...
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF01:24

Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF

Tumor Necrosis Factor (TNF), a proinflammatory cytokine, contributes significantly to the inflammation seen in Crohn's disease. It exists as soluble TNF and membrane-bound TNF, with actions mediated through TNF receptors (TNFR). TNFR activation leads to the release of proinflammatory cytokines, T-cell activation, collagen production, and leukocyte migration, all contributing to inflammation in Crohn's disease. Anti-TNF monoclonal antibodies, namely infliximab (Remicade), adalimumab (Humira),...
Connective Tissue Cell Types01:22

Connective Tissue Cell Types

Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...