Related Experiment Video
Updated: Feb 1, 2026
08:12
Transduction-Transplantation Mouse Model of Myeloproliferative Neoplasm
Published on: December 22, 2016
12.4K
Heterogeneity in myeloproliferative neoplasms: Causes and consequences
Jennifer O'Sullivan1, Adam J Mead2
1MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, OX3 9DS, United Kingdom.
Advances in Biological Regulation
|December 12, 2018
Summary
Myeloproliferative neoplasms (MPNs) exhibit diverse clinical features despite shared mutations like JAK2 V617F. Understanding factors driving this MPN heterogeneity is key to personalized patient management and improved outcomes.
Area of Science:
- Hematology
- Oncology
- Genetics
Background:
- Myeloproliferative neoplasms (MPNs) are clonal hematopoietic stem cell disorders.
- MPNs include essential thrombocythemia (ET), polycythemia vera (PV), and primary myelofibrosis (PMF).
- Driver mutations, notably JAK2 V617F, CALR, and MPL, are present in over 85% of patients.
Purpose of the Study:
- To review the multifaceted factors contributing to MPN heterogeneity.
- To discuss the role of these factors in diverse MPN disease phenotypes.
- To highlight the importance of tailored patient management for modifying disease natural history.
Main Methods:
- Literature review of MPN heterogeneity.
- Analysis of factors influencing MPN phenotype diversity.
- Discussion of clinical, pathological, and molecular features.
Main Results:
- MPN heterogeneity arises from a complex interplay of factors.
- Factors include patient characteristics, somatic mutations, microenvironment, and germline genetics.
- The JAK2 V617F mutation can lead to a spectrum of MPN phenotypes.
Conclusions:
- MPN heterogeneity presents a significant challenge in patient management.
- Understanding the diverse factors influencing MPN phenotypes is crucial.
- Personalized treatment strategies based on individual factors can improve patient outcomes.
Related Concept Videos
01:08Timing and Consequences on Behavior
393
In operant conditioning, the timing of reinforcement is crucial. For animals like rats and cats, immediate reinforcement (within a few seconds) is much more effective than delayed reinforcement. For example, a food reward for a rat needs to follow within 30 seconds of pressing a bar to be effective.
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
Humans, however, can respond to delayed reinforcers. We often make decisions between immediate small rewards and delayed larger rewards. This ability to delay gratification is a significant...
393
01:55Egoism and Altruism
93.4K
Voluntary behavior with the intent to help other people is called prosocial behavior. Why do people help other people? Is personal benefit such as feeling good about oneself the only reason people help one another?
93.4K
02:50Catalysis
30.5K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
30.5K
00:53Tonicity in Plants
59.8K
Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.
59.8K
03:35Classifying Matter by Composition
90.4K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
90.4K
02:12General Properties of Solutions
35.8K
Many common substances around us exist as a solution, such as ocean water, air, and gasoline. All solutions are mixtures of substances that are composed of varying amounts of two or more types of atoms or molecules. A mixture with a non-uniform composition is a heterogeneous mixture, whereas a mixture with a uniform composition is a homogeneous mixture. The components that make the homogeneous mixture are evenly spread out and thoroughly mixed.
35.8K