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Updated: Jul 17, 2026
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High Content Screening in Neurodegenerative Diseases
Published on: January 6, 2012
HRAS and the Costello syndrome
1Department of Pediatrics, Division of Medical Genetics, University of California, San Francisco, CA 94115, USA. rauen@cc.ucsf.edu
Clinical Genetics
|January 26, 2007
Summary
Costello syndrome (CS) is a rare genetic disorder caused by HRAS gene mutations, leading to developmental issues and increased cancer risk. Understanding its Ras pathway link offers insights into development and cancer.
Area of Science:
- Genetics
- Developmental Biology
- Oncology
Background:
- Costello syndrome (CS) is a complex developmental disorder.
- CS is characterized by craniofacial abnormalities, failure to thrive, developmental delay, cardiac and skeletal anomalies.
- CS patients have a predisposition to benign and malignant neoplasia.
Purpose of the Study:
- To elucidate the genetic etiology of Costello syndrome.
- To understand the role of the Ras pathway in human development.
- To gain insights into cancer pathogenesis related to Ras signaling.
Main Methods:
- Genetic analysis to identify causative mutations.
- Review of existing literature on Ras pathway signaling.
- Comparative analysis with other Ras pathway-related syndromes.
Main Results:
- Costello syndrome is caused by activating germline mutations in the HRAS gene.
- HRAS mutations place CS within a class of syndromes involving Ras pathway dysregulation.
- The Ras pathway is a critical signaling hub controlling vital cellular functions.
Conclusions:
- Understanding the genetic basis of CS is crucial for comprehending Ras's role in development and cancer.
- Further research into Ras pathway signaling can inform therapeutic strategies for CS and related disorders.
- CS serves as a model for studying the impact of aberrant Ras signaling on human health.
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