CIRH1A
CIRH1A: A Comprehensive Overview
Description:
CIRH1A (Cyclin-dependent kinase inhibitor 1A) is a protein encoded by the CIRH1A gene. It is a member of the Cip/Kip family of cyclin-dependent kinase inhibitors (CDKIs), which play crucial roles in cell cycle regulation. CIRH1A primarily inhibits the activity of cyclin D-CDK4/6 complexes, thereby blocking cell cycle progression from the G1 to S phase.
Associated Diseases:
Dysregulation of CIRH1A has been implicated in various diseases, including:
- Cancer: CIRH1A is commonly downregulated in multiple types of cancer, such as lung, breast, and colorectal cancer. Its loss of function promotes tumor growth and proliferation by disrupting cell cycle control.
- Cardiovascular disease: Studies have found reduced CIRH1A expression in patients with heart failure and cardiomyopathy. Its deficiency impairs cardiac cell cycle arrest and contributes to abnormal heart growth.
- Neurological disorders: CIRH1A plays a role in neuronal development and survival. Mutations in CIRH1A have been associated with neurodegenerative diseases, such as Alzheimer's disease and Parkinson's disease.
Did you Know ?
- CIRH1A expression is significantly reduced in over 50% of lung cancer cases, underscoring its importance as a potential biomarker and therapeutic target.
