The IGFBP7 gene helps control how cells grow, stick together, and respond to stress, and it supports healthy blood vessel function. If this gene does not work properly, cell growth and tissue repair may become less controlled. This gene plays an important role in tissues that need steady growth signals, including the lining of blood vessels. Changes involving the IGFBP7 gene have been linked in research to some cancers and to conditions affecting the heart and circulation.
What is a gene?
Genes are stretches of DNA that hold instructions cells can use to make molecules or regulate processes in the body. Some genes carry the information needed to produce proteins, the parts of cells that do the work. Other genes mainly control when certain processes happen, where they happen, and how strongly they run. Taken together, genes influence how the body develops and functions, and they can shape how you respond to food, stress, or medications. To explore this topic in more detail, you can read more in the LearnHub.
Overview
IGFBP7Gene function
What if the gene works
The IGFBP7 gene helps control how cells grow, stick together, and respond to insulin-like growth signals. Its protein also supports the blood vessel lining and other tissues as they maintain steady, healthy cell activity.
Risk
What if the gene does not work
Pathogenic variants in the IGFBP7 gene can cause an inherited eye and heart condition, with bulging blood vessels in the retina and narrowing above the pulmonary valve; milder or more severe variants may affect onset and severity.
Treatment
What does that mean for your treatment
A pathogenic variant in the IGFBP7 gene does not currently guide any established drug choice or disease-specific treatment. The IGFBP7 gene is mainly being studied as a biomarker, especially with TIMP2 for acute kidney injury risk, and as a possible cancer-related marker or drug target.
Conditions associated with IGFBP7
Gene function
What if the gene works
In your body, the IGFBP7 gene helps fine tune messages that guide cell growth, energy use, and tissue upkeep. Its protein is released outside cells, where it interacts with growth signals and the material around cells. Understanding the IGFBP7 gene's role in cell growth and insulin signaling helps explain how tissues stay balanced over time.
The IGFBP7 gene makes a protein that can bind growth messengers, including insulin-like growth factors, which are natural growth signals. This helps adjust how strongly nearby cells receive signals for everyday growth and maintenance.
Its protein can also attach to insulin outside cells. This adds another layer of control to insulin signaling, which helps cells respond in a measured way.
The IGFBP7 gene also helps cells interact with the support material around them. This supports stable cell attachment and organized tissue structure.
By shaping signals between cells and their surroundings, the IGFBP7 gene supports controlled cell renewal and routine tissue upkeep. This steady communication helps tissues adapt to normal daily wear.
What is a variant?
A genetic variant is a minor difference in the DNA sequence within a gene. These differences are common and help create normal human diversity, including variations in appearance, metabolism, and how the body responds to environmental factors. Many variants do not cause any noticeable effect and simply represent natural genetic variation. In some situations, though, a variant can more strongly affect how a gene works and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the IGFBP7 gene can change the protein’s shape, stability, or release from the cell, which may weaken its effects on growth signals and the supportive material around cells. Some IGFBP7 gene variants are milder and leave partial activity, while more severe variants can greatly reduce or abolish protein function. In conditions linked to the IGFBP7 gene, larger functional losses often go along with earlier onset or a broader pattern of features.
How variants are linked to conditions
Biallelic pathogenic variants in the IGFBP7 gene are linked to retinal arterial macroaneurysm with supravalvular pulmonic stenosis, a rare inherited condition. People with this diagnosis may develop enlarged retinal arteries that can affect vision, together with narrowing near the pulmonary valve in the heart.
A variant is not necessarily a diagnosis
Genetic variants are common across the general population and are a normal feature of human biology. Most do not directly affect health and instead represent part of natural human diversity. For many genes, having a variant associated with a condition points to a possible link rather than a confirmed diagnosis, particularly when more than one gene and environmental influences play a role. In other situations, though, one well-characterized variant in a particular gene may be enough to confirm the diagnosis.
Are there things that can increase or change my risk?
There is not yet broadly confirmed evidence on specific factors that increase or reduce risk related to IGFBP7. Changes in this gene are still being studied, and personal risk usually depends on the wider health picture, family history, and other genes as well.
Inheritance of IGFBP7 variants
IGFBP7-related conditions that are clearly established in genetics follow an autosomal recessive pattern. This means a person inherits one altered copy of the IGFBP7 gene from each parent, and parents are usually healthy carriers. For each pregnancy, when both parents carry an IGFBP7 gene variant, there is a 25% chance the child inherits both altered copies, a 50% chance the child is a carrier, and a 25% chance the child inherits neither altered copy. This is the main pattern described for how IGFBP7 gene variants are inherited.
What does my IGFBP7 result mean for my family?
For the known IGFBP7-related condition, family implications usually fit a recessive pattern. This means brothers and sisters may also have the condition or be healthy carriers, and parents are often carriers as well. Other relatives may also carry the changed gene, which can matter for family planning.
Genetic information
Genetic testing
How you find out about variants
Variants in the IGFBP7 gene are found through DNA testing on a blood or saliva sample, usually as part of a multigene panel or broader sequencing test. This explains how genetic testing for IGFBP7 works: a lab reads the gene's DNA code and looks for changes, then classifies any variant using established medical standards.
When should I consider getting a genetic test?
Genetic testing for the IGFBP7 gene may be worth considering if someone has a rare pattern of eye blood vessel problems along with narrowing near the artery that carries blood from the heart to the lungs, or if this runs in the family. It can help confirm whether IGFBP7 is the cause and clarify chances for relatives.
A genetic result is only one part of your health story
A genetic result can provide valuable insight, yet what it can tell you varies by the condition and the specific type of variant. Lifestyle, environment, age, and medical history are among the many factors that influence how the body functions over time. In some conditions, especially those shaped by many genes, genetic information provides context rather than certainty and is most useful when viewed together with other parts of care. In other situations, a genetic result can offer a clear answer. In areas like medication response, it can also help put individual experiences into context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Small differences in DNA can change how the body breaks down a drug, moves it through the body, or responds to it at its target. This helps explain why the same treatment works well for one person, seems weaker for another, or causes more side effects in someone else. These differences are common and are one of several reasons medication response can vary from person to person.
What is Pharmacogenetics?
Pharmacogenetics examines the way genetic differences affect how people respond to medicines. It studies links between genes and medications to help explain why the same treatment may work differently in different people. For many drugs, genes can influence both how strongly a medicine works and how the body handles it. This information can support more informed, more personalized treatment decisions. More detail on this topic is available in the LearnHub.
Drugs influenced by the IGFBP7 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication choice or dose, so general questions about medicines, side effects, or treatment changes are best discussed with your doctor. Research on IGFBP7 has looked at whether it may influence how some cancers respond to treatment, but this is not a routine part of prescribing.
History
IGFBP7 was identified in the 1990s during studies of proteins linked to insulin-like growth factor pathways, although it first appeared in research under several names, including MAC25, prostacyclin-stimulating factor, and angiomodulin. Initially understood only through visible traits, later recognized as tied to a specific gene, its naming history reflected different research groups studying the same molecule from different angles. As medical science evolved, so did understanding of this gene. Researchers later placed it within the insulin-like growth factor binding protein family and standardized the name as the IGFBP7 gene. Over time, descriptions became more precise, and the older names are now mostly found in earlier scientific papers.