New screening platform links molecule clusters to neurodevelopmental disorders
When drops of oil are added to water, the oil and water remain separate. Within cells, biological molecules cluster together in a similar way, separating themselves from the rest of the cell. And while they don't have a membrane, they are their own distinct compartments.
A new screening platform, named CondenScreen, offers a method to link biomolecular condensates with neurodevelopmental disorders. When oil is mixed with water, the two substances remain separate, similar to how biological molecules cluster and separate within cells. In some instances, these clusters, called biomolecular condensates, become dysfunctional and accumulate abnormally, leading to cell death and connection to neurodegenerative diseases such as frontotemporal degeneration, Parkinson's disease, and Alzheimer's disease.
Now, researchers from Yale School of Medicine have developed CondenScreen, which identifies genes associated with the malfunction of these condensates. Their research, published in Molecular Biology of the Cell, also discovered that these condensates are associated with neurodevelopmental disorders like microcephaly, a rare condition characterized by abnormally small head size. The platform has the potential to open up new avenues for therapeutic applications in treating these disorders.
One of the study's first authors, Dylan Poch, explains that traditional pharmacology often has difficulty targeting proteins associated with neurological conditions. However, if biomolecular condensates can be targeted themselves, it could lead to new therapeutic approaches for neurodevelopmental disorders. The study's principal investigator, Christian Schlieker, leads a laboratory that investigates neurological and movement disorders, with a focus on the molecular mechanisms behind DYT1 dystonia, a severe movement disorder typically appearing in childhood and linked to pathological condensates.
To develop CondenScreen, the researchers utilized a universal biomarker called MLF2, a protein found in dysfunctional biomolecular condensates regardless of the disease. By knocking out individual genes in cultured cells and examining the cells for pathological condensates, the team found several candidate genes associated with neurodevelopmental disorders.
This finding is particularly exciting, as neurodevelopmental disorders and pathological condensates have never been connected before. Further research is needed to understand the mechanisms driving the rapid buildup of condensates in neurodevelopmental disorders.
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