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Updated: Dec 5, 2025

Assaying the Kinase Activity of LRRK2 in vitro
Published on: January 18, 2012
Allosteric inhibition of LRRK2, where are we now
Ahmed Soliman1, Fatma Nihan Cankara2, Arjan Kortholt1,2
1Department of Cell Biochemistry, University of Groningen, Groningen, The Netherlands.
Abstract:
Parkinson's disease (PD) is the second most common neurodegenerative disease. In recent years, it has been shown that leucine-rich repeat kinase 2 (LRRK2) has a crucial function in both familial and sporadic forms of PD. LRRK2 pathogenic mutations are thought to result in an increase in LRRK2 kinase activity. Thus, inhibiting LRRK2 kinase activity has become a main therapeutic target. Many compounds capable of inhibiting LRRK2 kinase activity with high selectivity and brain availability have been described. However, the safety of long-term use of these ATP-competitive LRRK2 kinase inhibitors has been challenged by several studies. Therefore, alternative ways of targeting LRRK2 activity will have a great benefit. In this review, we discuss the recent progress in the development of allosteric inhibitors of LRRK2, mainly via interfering with GTPase activity, and propose potential new intra and interprotein interactions targets that can lead to open doors toward new therapeutics.
Insights
New Parkinson's disease (PD) therapies focus on allosteric LRRK2 inhibitors. This approach bypasses safety concerns of current ATP-competitive drugs, offering a promising alternative for treating this neurodegenerative disease.
Area of Science:
- Neuroscience
- Pharmacology
- Genetics
Background:
- Parkinson's disease (PD) is a prevalent neurodegenerative disorder.
- Leucine-rich repeat kinase 2 (LRRK2) plays a key role in both familial and sporadic PD.
- Pathogenic LRRK2 mutations increase its kinase activity, making it a therapeutic target.
Purpose of the Study:
- To review recent advancements in developing allosteric LRRK2 inhibitors.
- To explore alternative strategies for targeting LRRK2 activity beyond ATP-competitive inhibition.
- To identify novel intra- and interprotein interaction targets for PD therapeutics.
Main Methods:
- Review of current literature on LRRK2 inhibitors.
- Analysis of allosteric inhibition mechanisms, focusing on GTPase activity.
- Identification of potential new therapeutic targets within LRRK2 pathways.
Main Results:
- Development of selective LRRK2 inhibitors with brain availability.
- Concerns regarding the long-term safety of ATP-competitive LRRK2 inhibitors.
- Emergence of allosteric inhibition as a viable therapeutic strategy.
Conclusions:
- Allosteric LRRK2 inhibitors offer a safer alternative to ATP-competitive drugs.
- Targeting LRRK2's GTPase activity is a promising therapeutic avenue.
- Further research into LRRK2 interactions may unlock new PD treatments.
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