The Study
Structural insights into the substrate uptake and inhibition of the human creatine transporter (hCRT)
This study is like taking super-detailed 3D photos of a lock (the creatine transporter) with and without its key (creatine) or a fake key that jams it (RGX202). It shows exactly how the pieces fit together, but it doesn’t show what happens when you use the lock in a real door. So we can guess how it works, but we can’t say for sure what will happen in a real person or cell.
Analysis score
Maximum 0 for a computational/algorithm study.
Where the score came from
Your body uses a tiny machine called hCRT to bring creatine into cells. This machine needs salt parts (sodium) to work. A medicine called RGX202 can block this machine so cancer cells can't get energy.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 50 / 100
Quality score
Based on clinical experience or non-systematic literature reviews. The lowest level of evidence as they are most susceptible to bias and personal perspective.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This helps us understand brain diseases and how to stop cancer from stealing energy.
- 2Scientists saw the hCRT machine up close.
- 3Creatine fits in the middle, held by four key parts.
- 4The drug RGX202 fits in the same spot.
- 5The machine needs 2 sodiums and 1 chloride to work.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Proceedings of the National Academy of Sciences of the United States of America
Year
2025
Authors
Xin Yuan, Jianrui Yin, Chang Liu, Xudong Chen, Meiying Chen, Yixue Wang, Zi Yang, Yue Wang, Li Jiang, Niyun Zhou, Xiaojuan Wang, Botong Liu, Zhaoqi Ma, Kaiyan Wang, Hongen Li, Sensen Zhang, Yongfeng Shang, Maojun Yang
Related Content
Claims (4)
Your muscles need sodium to pull in creatine, kind of like a battery-powered door — if the battery's dead or there's no sodium around, creatine can't get inside, even if you're drinking plenty of water.
A drug called RGX202 sticks to the same spot on a protein that carries creatine in the body, kind of like two keys trying to fit in the same lock — so creatine can't get in, and its movement gets blocked.
The protein that moves creatine in human cells has a specific 3D shape made of 12 spiral sections, and this shape helps it grab creatine and sodium like a lock and key.
Creatine sticks to a special spot in a human protein using specific handholds, kind of like a key fitting into a lock, with certain parts of the protein helping hold it in place using molecular Velcro and tiny magnets.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.