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Updated: May 5, 2026

Quantifying Spontaneous Ca2+ Fluxes and their Downstream Effects in Primary Mouse Midbrain Neurons
Published on: September 9, 2020
Modulating Ca2+ release by the IP3R/Ca2+ channel as a potential therapeutic treatment for neurological diseases
1Laboratory for Neuronal Growth Mechanisms, RIKEN Brain Science Institute, Wako, Saitama, Japan. chanccm@gmail.com.
Abstract:
Recent research into neurodegenerative disorders found that their pathogeneses have a link to the inositol 1,4,5-trisphosphate receptors (IP3R). This is encouraging, because despite extensive efforts, researchers have not fully understood the pathophysiologies of those disorders, and have yet to find the cure. The IP3R provides a possible point of convergence that new therapeutic drugs can target. This review highlights patents that manipulate activities of the IP3R. They generally involve the use of peptides designed from the amino acid sequences of IP3R-binding proteins, and of buffers that limit the availability of its ligand, IP3. Additionally, one of them details the use of a chromophore-conjugated small synthetic molecule to directly inhibit the IP3R in a highly spatiotemporally specific manner. Although many of them have only been tested in vitro or are in the early stages of in vivo application, more research-effective therapies for neurodegenerative diseases can hopefully be developed.
Insights
New therapeutic strategies for neurodegenerative diseases focus on targeting inositol 1,4,5-trisphosphate receptors (IP3R). Patents explore peptides and IP3-limiting buffers to modulate IP3R activity for potential treatments.
Area of Science:
- Neuroscience
- Pharmacology
- Biochemistry
Background:
- Neurodegenerative disorders' pathogeneses are linked to inositol 1,4,5-trisphosphate receptors (IP3R).
- Current understanding of these disorders' pathophysiologies and cures remains incomplete.
- IP3R presents a potential convergence point for novel therapeutic interventions.
Purpose of the Study:
- To review patents targeting the modulation of inositol 1,4,5-trisphosphate receptors (IP3R).
- To explore novel therapeutic strategies for neurodegenerative diseases by targeting IP3R.
Main Methods:
- Review of patents involving IP3R activity manipulation.
- Analysis of therapeutic approaches utilizing peptides derived from IP3R-binding proteins.
- Examination of methods employing buffers to limit IP3 availability.
- Investigation of direct IP3R inhibition using chromophore-conjugated small molecules.
Main Results:
- Patents generally involve peptides or IP3-limiting buffers to modulate IP3R activity.
- One patent details direct, spatiotemporally specific IP3R inhibition via a synthetic molecule.
- Most patented approaches are in early-stage research (in vitro or early in vivo).
Conclusions:
- Modulating IP3R activity represents a promising avenue for neurodegenerative disease therapies.
- Further research and development of these patented IP3R-targeting strategies are warranted.
- Potential for more effective treatments for neurodegenerative diseases exists through IP3R manipulation.
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