The HSD17B6 gene helps your body process certain steroid hormones and supports the making of bile acids, which help digest fats. If this gene does not work well, hormone balance and bile acid handling may be disrupted, which can affect liver related processes. This gene plays an important role in chemical pathways that help the body manage everyday metabolism, but it is not one of the genes that has become widely known in popular culture.
What is a gene?
Genes are stretches of DNA that hold instructions your cells use to make molecules or regulate activities in the body. Some genes carry the directions for producing proteins, the parts of cells that do much of the work. Others mainly help determine when certain processes happen, where they happen, and how strongly they run. Together, genes affect how the body develops and works, and they can also shape how you respond to food, stress, or medications. For a more in depth look at this topic, you can learn more in the LearnHub.
Overview
HSD17B6Gene function
What if the gene works
The HSD17B6 gene helps your body process steroid hormones and forms of vitamin A. Its protein supports normal hormone balance and vitamin A processing in several tissues.
Risk
What if the gene does not work
Milder to more severe variants in the HSD17B6 gene can reduce or alter this enzyme's steroid and retinoid processing activity. Cells may then handle certain hormone and vitamin A related molecules less efficiently.
Treatment
What does that mean for your treatment
No HSD17B6-specific treatment or drug choice is currently established in clinical guidelines for people with a pathogenic or loss-of-function variant in the HSD17B6 gene. The HSD17B6 gene is being studied as a biomarker and possible drug target, especially in prostate cancer and some liver cancers, but this has not yet changed standard treatment decisions.
Gene function
What if the gene works
In everyday cell activity, the HSD17B6 gene helps process certain hormones and vitamin A related compounds. Its enzyme changes these substances from one form to another so tissues can use them in a controlled way. This is a key part of how the HSD17B6 gene works in the body.
The HSD17B6 gene helps cells convert certain steroid hormones from one form to another. This supports normal hormone signaling in tissues that use these chemical messages.
Its enzyme can turn a less active androgen into dihydrotestosterone, a stronger male sex hormone. This lets local tissues fine tune hormone signals for routine growth and maintenance.
The HSD17B6 gene also helps convert retinol into retinal, an early step in making retinoic acid. Retinoic acid is a vitamin A based signal that helps guide normal cell activity.
What is a variant?
A genetic variant is a small difference in the DNA sequence of a gene. These changes are common and contribute to normal human diversity, including differences in appearance, metabolism, or how the body responds to environmental influences. Many variants do not cause any noticeable effect and are simply part of natural genetic variation. In some cases, though, a variant can more substantially change 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 HSD17B6 gene can change the enzyme’s shape, stability, or ability to bind its usual steroid and retinoid targets, which may lower its activity inside cells. Milder variants may leave some activity in place, while more disruptive variants, including changes that shorten the protein, can lead to very little or no working enzyme. This spectrum helps explain how variants in the HSD17B6 gene affect enzyme activity and related cell chemistry.
How variants are linked to conditions
At this stage, the HSD17B6 gene does not yet have a broadly confirmed link to a specific health condition, and information about HSD17B6 gene variants and disease risk is still developing. If you have a confirmed variant in the HSD17B6 gene, your doctor or genetic counselor can explain what it may or may not mean for you based on your personal and family history.
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 simply contribute to natural differences between people. For many genes, having a variant associated with a condition points to a possible link rather than a confirmed diagnosis, particularly when several genes and environmental influences play a role. In other situations, though, one well-characterized variant in a particular gene is 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 health risk related to the HSD17B6 gene. Anyone concerned about personal or family risk can discuss their history with a doctor or genetic counselor.
Inheritance of HSD17B6 variants
For families trying to understand how HSD17B6 gene variants are inherited, there is not yet a broadly confirmed Mendelian inheritance pattern for a specific HSD17B6 related condition. As research develops, this picture may become clearer. The HSD17B6 gene is located on chromosome 12, which is an autosome, so you inherit one copy from each parent. That general chromosome location means inheritance is not expected to differ between males and females in the way it can for genes on the X or Y chromosome.
What does my HSD17B6 result mean for my family?
There is not yet a broadly confirmed, condition-specific inheritance pattern for HSD17B6 that is used in routine patient care, though this can change as research grows. If you have a specific HSD17B6 result and want to understand what it could mean for relatives, a doctor or genetic counselor can review your result in the context of your family history.
Genetic information
Genetic testing
How you find out about variants
Genetic testing for HSD17B6 variants usually analyzes DNA from blood, saliva, or a cheek swab. Labs read the HSD17B6 gene sequence and compare it with a reference to identify variants. Results may show a benign variant, one linked to disease, or one whose meaning is still unclear.
When should I consider getting a genetic test?
There is not yet a broadly established, HSD17B6-specific reason for most people to get genetic testing. Testing is usually considered based on your personal health history, family history, and the wider set of genes a doctor or genetic counselor thinks are most relevant.
A genetic result is only one part of your health story
Genetic results can provide valuable insight, although what they reveal depends on the condition and on the kind of variant involved. How the body functions over time is shaped by many factors, including lifestyle, environment, age, and medical history. In some conditions, especially those affected by many genes, genetic information offers context rather than certainty and is most useful when considered with other parts of care. In other situations, a genetic result can offer a clear answer. In areas like medication response, these results may also help put personal experiences into perspective.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Two people can take the same treatment and have different results because their bodies may absorb, break down, or respond to the drug in different ways. These inherited differences are common and can influence how well a medicine works or how sensitive someone is to side effects.
What is Pharmacogenetics?
Pharmacogenetics examines how genetic differences affect medication response. It looks at connections between genes and drugs to help explain why treatments can work differently from one person to another. For many medicines, genes influence either how strongly a drug works or how the body processes it. This information can support more informed and individualized treatment decisions. More on this topic is available in the LearnHub.
Drugs influenced by the HSD17B6 gene
When should I seek medical advice?
At this time, there is no broadly confirmed use of this gene for choosing or adjusting medicines. If you have concerns about side effects, changes in how a medicine is working, or starting a new treatment, discuss them with your doctor or pharmacist.
History
In the 1990s, researchers studying enzymes that process steroid hormones identified the HSD17B6 gene as part of the 17β-hydroxysteroid dehydrogenase family. Early work linked it to the handling of androgen-related molecules in tissues such as the liver and prostate. As medical science evolved, so did understanding of this gene. Later studies showed that its activity also overlaps with retinoid, or vitamin A related, pathways, which refined how scientists classified its role. Over time, descriptions became more precise, and the HSD17B6 gene came to be recognized as one of several genes involved in local hormone balance within tissues.