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Updated: Jul 20, 2026

Limbal Approach-Subretinal Injection of Viral Vectors for Gene Therapy in Mice Retinal Pigment Epithelium
Published on: August 7, 2015
Current concepts in RET-related genetics, signaling and therapeutics
Ivan Plaza-Menacho1, Grzegorz M Burzynski, Jan Willem de Groot
1Department of Genetics, University Medical Center Groningen, University of Groningen, Postbus 30 001, 9700 RB Groningen, The Netherlands.
Abstract:
The receptor tyrosine kinase RET is expressed in cell lineages derived from the neural crest and has a key role in regulating cell proliferation, migration, differentiation and survival during embryogenesis. Germline and somatic mutations in RET that produce constitutively activated receptors cause the cancer syndrome multiple endocrine neoplasia type 2 and several endocrine and neural-crest-derived tumors, whereas mutations resulting in nonfunctional RET or lower expression of RET are found in individuals affected with Hirschsprung disease. This review focuses on the genetics and molecular mechanisms underlying the different inherited human neural-crest-related disorders in which RET dysfunction has a crucial role and discusses RET as a potential therapeutic target.
Insights
The RET receptor tyrosine kinase is vital for neural crest development. Its mutations cause developmental disorders like Hirschsprung disease and cancers such as multiple endocrine neoplasia type 2.
Area of Science:
- Genetics
- Developmental Biology
- Oncology
Background:
- The receptor tyrosine kinase RET is crucial for neural crest cell development, regulating proliferation, migration, differentiation, and survival.
- Dysfunctional RET signaling is implicated in both developmental disorders and cancers.
- Understanding RET's role is key to addressing these conditions.
Purpose of the Study:
- To review the genetics and molecular mechanisms of inherited neural crest-related disorders linked to RET.
- To explore the diverse roles of RET mutations in human diseases.
- To discuss RET as a potential therapeutic target.
Main Methods:
- Literature review of genetic and molecular studies on RET.
- Analysis of RET's role in embryogenesis and disease pathogenesis.
- Examination of therapeutic strategies targeting RET.
Main Results:
- Germline and somatic RET mutations leading to overactivation cause multiple endocrine neoplasia type 2 and other tumors.
- RET mutations causing nonfunctional receptors or reduced expression are associated with Hirschsprung disease.
- RET signaling pathways are critical for neural crest development and homeostasis.
Conclusions:
- RET gene mutations are central to the pathogenesis of various neural crest-derived disorders.
- Targeting RET offers a promising therapeutic avenue for these conditions.
- Further research into RET's molecular mechanisms can illuminate disease pathways.
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