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Published on: January 7, 2019
Mevalonate kinase deficiency: disclosing the role of mevalonate pathway modulation in inflammation
Annalisa Marcuzzi1, Sergio Crovella, Lorenzo Monasta
1Institute for Maternal and Child Health – IRCCS “Burlo Garofolo” – Trieste, Italy.
Abstract:
Inflammation is a highly regulated process involved both in the response to pathogens as well as in tissue homeostasis. In recent years, a complex network of proteins in charge of inflammation control has been revealed by the study of hereditary periodic fever syndromes. Most of these proteins belong to a few families and share the capability of sensing pathogen-associated and damageassociated molecular patterns. By interacting with each other, these proteins participate in the assembly of molecular platforms, called inflammasomes, which ultimately lead to the activation of cytokines, to the transcription of inflammatory genes or to the induction of cell apoptosis. Among hereditary periodic fever syndromes, mevalonate kinase deficiency (MKD) is the sole in which the phenotype did not directly associate with a deficiency of these proteins, but with a metabolic defect of the mevalonate pathway, highlighting the importance of this metabolic pathway in the inflammation control. Noteworthy, drugs acting on this pathway can greatly influence the inflammatory response. The modulation of inflammation by mevalonate pathway is of interest, since it may involve mechanisms not directly referable to inflammasomes. MKD provides a model to study these mechanisms and possibly to develop new classes of anti-inflammatory drugs.
Insights
Mevalonate kinase deficiency (MKD) reveals the mevalonate pathway
Area of Science:
- Molecular Biology
- Immunology
- Metabolic Disorders
Background:
- Inflammation is a crucial biological process for pathogen defense and tissue repair.
- Hereditary periodic fever syndromes have elucidated key proteins regulating inflammation, often forming inflammasomes.
- These inflammasomes sense molecular patterns and trigger inflammatory responses, gene transcription, or apoptosis.
Purpose of the Study:
- To investigate the role of the mevalonate pathway in inflammation control, particularly in Mevalonate Kinase Deficiency (MKD).
- To explore potential anti-inflammatory mechanisms not directly linked to inflammasomes.
- To establish MKD as a model for developing novel anti-inflammatory therapies.
Main Methods:
- Analysis of hereditary periodic fever syndromes, focusing on Mevalonate Kinase Deficiency (MKD).
- Investigation of the mevalonate pathway's metabolic defects in MKD.
- Exploration of drug actions on the mevalonate pathway and their influence on inflammatory responses.
Main Results:
- MKD is unique among periodic fever syndromes as its phenotype links to a metabolic defect, not protein deficiency.
- The mevalonate pathway plays a significant role in inflammation control.
- Drugs targeting the mevalonate pathway can modulate inflammatory responses.
Conclusions:
- The mevalonate pathway is integral to inflammation regulation, potentially through mechanisms beyond inflammasomes.
- MKD serves as a valuable model for studying these non-inflammasome-mediated inflammatory pathways.
- Targeting the mevalonate pathway offers a promising strategy for developing new anti-inflammatory drugs.
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