Related Experiment Video
Updated: Jun 1, 2026

Molecular and Immunologic Techniques in a Genetically Engineered Mouse Model of Gastrointestinal Stromal Tumor
Published on: May 2, 2022
Receptor tyrosine kinase kit and gastrointestinal stromal tumours: an overview
S Sartini1, B Dario, M Morelli
1Dipartimento di Scienze Farmaceutiche, Università di Pisa, Via Bonanno 6, 56126, Pisa, Italy.
Abstract:
Kit is a growth factor receptor of the type III tyrosine kinase family, whose gain-of-function mutations have been identified as driving causes of different kinds of tumours. It thus represents a viable drug target, and the development of Kit inhibitors has been shown to be a promising therapeutic concept. This review will focus on structural and signalling properties of both wild-type and mutant Kit, as well as its role in the development of human cancers. Special attention will be dedicated to gastrointestinal stromal tumours, GISTs. Progress in research on the aetiopathogenesis of GISTs and their therapeutic approaches will be fully discussed, focusing on the latest tendencies for the treatment of these kinds of tumours.
Insights
Kit, a tyrosine kinase receptor, drives tumor growth through mutations. Inhibitors targeting Kit show promise, especially for gastrointestinal stromal tumors (GISTs), with this review detailing Kit
Area of Science:
- Oncology
- Molecular Biology
- Cancer Genetics
Background:
- The Kit receptor tyrosine kinase plays a crucial role in cell signaling and is implicated in various human cancers due to activating mutations.
- Gain-of-function mutations in Kit are oncogenic drivers, making it a significant therapeutic target.
- Gastrointestinal stromal tumors (GISTs) are a primary example where Kit mutations are pathognomonic.
Purpose of the Study:
- To review the structural and signaling properties of wild-type and mutant Kit.
- To elucidate the role of Kit in human cancer development, with a focus on GISTs.
- To discuss the latest advancements in understanding GIST aetiopathogenesis and therapeutic strategies.
Main Methods:
- Literature review of scientific publications on Kit signaling, mutations, and cancer.
- Analysis of structural and functional data of Kit.
- Synthesis of current research on GISTs, including molecular mechanisms and treatment outcomes.
Main Results:
- Kit's aberrant activation through mutations drives tumorigenesis in various cancers.
- Detailed understanding of Kit's structure and signaling pathways provides insights into its oncogenic potential.
- Significant progress has been made in developing targeted therapies for Kit-driven tumors, particularly GISTs.
Conclusions:
- Targeting Kit represents a validated and effective therapeutic strategy for specific cancers.
- Continued research into Kit's biology and its role in GISTs is crucial for refining treatment approaches.
- The development of Kit inhibitors has revolutionized the management of GISTs and holds promise for other Kit-dependent malignancies.
Related Concept Videos
Receptor Tyrosine Kinases
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Mitogens and the Cell Cycle
Enzyme-linked Receptors
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Small GTPases - Ras and Rho
Three regulatory proteins control their activity:
