The ITGA8 gene helps cells attach to their surroundings and send signals that guide how tissues form, especially in the developing kidneys and urinary tract. This gene plays an important role in helping organs take shape and connect properly before birth. If it does not work well, kidney development may be disrupted, which can lead to kidneys that are small, missing, or formed differently. Some people with variants in the ITGA8 gene learn about it during testing for kidney or urinary tract conditions present at birth.
What is a gene?
Genes are pieces of DNA that give your cells instructions to make molecules or regulate activities in the body. Some genes carry the code for producing proteins, the parts that do much of the cell’s work. Other genes mainly guide when, where, and how much certain processes take place. Together, genes affect how the body develops and works, and they can influence how you respond to food, stress, or medications. For a deeper look at this topic, more information is available in the LearnHub.
Overview
ITGA8Gene function
What if the gene works
The ITGA8 gene helps cells attach to their surroundings and receive signals from nearby tissue. This supports normal organ shaping before birth, especially in the kidneys, and helps maintain muscle and connective tissue structure.
Risk
What if the gene does not work
More disruptive variants in the ITGA8 gene can disturb kidney development before birth, causing congenital kidney and urinary tract anomalies ranging from milder structural changes to absent kidneys. Severity may shape kidney function after birth.
Treatment
What does that mean for your treatment
No ITGA8-specific treatment or drug selection approach is currently established for pathogenic variants in the ITGA8 gene. The ITGA8 gene is mainly being studied for its role in kidney development and tissue scarring, rather than as a current treatment target.
Conditions associated with ITGA8
Gene function
What if the gene works
Cells need a steady grip on nearby support tissue to stay organized. In your body, the ITGA8 gene supports cell adhesion to the extracellular matrix, the material that surrounds and supports cells. It also helps cells sense that environment and respond in a coordinated way.
The ITGA8 gene helps make a surface protein that lets cells attach to the extracellular matrix, the supportive material around them. This grip helps cells stay positioned and connected to nearby tissue.
Working as part of an integrin receptor, a surface sensor, the ITGA8 gene helps cells sense contact with their surroundings. Those signals help cells adjust their shape, strength of attachment, and movement when needed.
By helping cells attach and respond to support tissue, the ITGA8 gene supports organized tissue building and routine upkeep. This is especially important when cells need to line up, spread out, or move in a controlled way.
What is a variant?
A genetic variant is a slight alteration in the DNA sequence of a gene. These changes are common and help create normal human diversity, including differences in appearance, metabolism, or the way the body responds to environmental influences. Many variants do not cause any noticeable effect and simply represent natural genetic variation. In some situations, however, a variant can change how a gene functions more substantially and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
Variants in the ITGA8 gene can leave the alpha8 integrin protein unstable, misfolded, or unable to pair with its partner, so less reaches the cell surface and cell signaling is weaker. In ITGA8 gene variants and kidney development, this can disrupt the tissue signals that shape the urinary tract. Milder variants may keep some activity, while more severe loss of function variants can remove activity almost completely and are more often linked to earlier or broader kidney changes.
How variants are linked to conditions
At present, the ITGA8 gene does not yet have a broadly confirmed link to a specific health condition, though this may change as research develops. Information on variants in the ITGA8 gene linked to disease is still evolving, so people with a confirmed ITGA8-related diagnosis should follow guidance from their doctor or genetic counselor rather than general summaries.
A variant is not necessarily a diagnosis
Gene variants are a normal feature of human biology and are widely seen in the general population. Most do not directly affect health and simply reflect natural human diversity. For many genes, carrying a variant associated with a condition suggests a possible link rather than a definite diagnosis, especially when several genes and environmental factors contribute. In some situations, though, a single well-characterized variant in a particular gene can be enough to confirm a 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 health risks related to the ITGA8 gene. If genetic test results mention ITGA8, a doctor or genetic counselor can help explain what that finding may mean for your personal and family risk.
Inheritance of ITGA8 variants
For families looking into how ITGA8 gene variants are inherited, the best-supported pattern is autosomal recessive. This means a child usually inherits one altered copy of the ITGA8 gene from each parent. Parents who each carry one variant are often unaffected, and with each pregnancy there is a 25% chance of having a child with both altered copies, a 50% chance of having a child who is a carrier, and a 25% chance of having a child with two typical copies. Since the ITGA8 gene is on chromosome 10, this pattern affects males and females equally.
What does my ITGA8 result mean for my family?
For families with a disease-causing ITGA8 result linked to a kidney development condition, the pattern is usually recessive, so parents are often healthy carriers. Brothers and sisters may also be carriers or, less often, have the same condition. Sharing the result with close relatives can help them understand whether family testing could be useful.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for ITGA8 variants uses a blood sample, saliva, or sometimes a cheek swab. A lab reads the DNA and checks for a known family variant or another reportable change. Results may show a pathogenic variant, a benign variant, or a variant of uncertain significance, meaning its health effect is still unclear.
When should I consider getting a genetic test?
There isn't yet a broadly established ITGA8-specific reason for genetic testing in routine care. Decisions about testing are usually based on your symptoms and family history, often with guidance from a doctor or genetic counselor.
A genetic result is only one part of your health story
A genetic result can provide valuable insight, but how much it explains varies by the condition and the type of variant involved. Many other factors, including lifestyle, environment, age, and medical history, also shape how the body functions over time. For some conditions, especially those influenced by many genes, genetic information offers context rather than certainty and is best interpreted alongside other parts of care. In other situations, a genetic result can give a clear answer. In areas such as medication response, genetic results 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 into tissues, or responds to its effects. This helps explain why the same medication may work well for one person, seem less helpful for another, or cause more side effects in someone else.
What is Pharmacogenetics?
Pharmacogenetics focuses on how differences in genes shape the way people respond to medications. It examines relationships between genes and drugs to help explain why the same treatment can affect one person differently from another. With many medicines, genes influence both how strongly a drug works and how the body processes it. This information can support treatment decisions that are both better informed and more individualized. More on this subject is available in the LearnHub.
Drugs influenced by the ITGA8 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding how medicines work, so any questions about treatments, side effects, or medication changes are best discussed with your doctor or pharmacist.