Investigating how Carey-Fineman-Ziter Syndrome (CFZS) causes muscle weakness

People with the rare inherited muscle condition Carey-Fineman-Ziter syndrome (CFZS) are born with muscle weakness, which can affect movement, breathing, feeding and facial muscles. There are very few people who have the condition, so very little is known about why it happens or how it changes over time. There are currently no treatments that target the underlying cause of the condition. 

Recent research has shown that CFZS is caused by changes in genes that help muscle cells join together as muscles develop and repair themselves. If this process does not happen properly, muscles may not form or repair as they should, leading to lifelong muscle weakness. 

Although we now know the genetic cause of CFZS, we still do not understand exactly how these genetic changes damage muscles. We also lack good laboratory models that allow researchers to study the condition or test potential new treatments. This limits progress towards better care for people living with CFZS. 

This project aims to understand how CFZS causes muscle weakness. 

Laboratory models will be created using cells that carry the same genetic changes found in people with CFZS. These models will allow Dr Ganassi and his PhD student to study how healthy muscle development is disrupted and identify the changes that lead to muscle weakness. 

Where possible, findings will be compared with samples donated by people with CFZS to make sure the laboratory models accurately reflect the condition. These models will also be used to identify possible targets for future treatments and create a platform that can be used to test new therapies. 

People living with CFZS currently have very few answers about why their muscles become weak and there are no treatments that target the cause of the condition. This research will help better understand how the condition develops and provide important tools for developing future therapies. 

Although this work is at an early stage, it could improve diagnosis, help doctors better understand CFZS and provide a way to test potential new treatments. The knowledge gained may also help researchers studying other rare muscle wasting conditions that affect muscles in similar ways.