The LATS1 gene helps keep cell growth and cell division under control, and when it does not work properly, cells may keep growing when they should stop. This gene plays an important role in signals that tell damaged or crowded cells to slow down, repair themselves, or die off. Because of that, harmful variants in the LATS1 gene can contribute to the development of some cancers. Most people hear about the LATS1 gene in cancer research rather than in everyday health discussions.
What is a gene?
A gene is a section of DNA that holds information your cells use to make molecules or regulate processes in the body. Some genes provide instructions for producing proteins, the parts of cells that do much of the work. Others mainly guide when, where, and how strongly certain processes take place. Taken together, genes affect how the body develops and works, and they can also influence how you respond to food, stress, or medications. For a deeper look at this topic, you can read more in the LearnHub.
Overview
LATS1Gene function
What if the gene works
The LATS1 gene helps control when cells grow, divide, and die. It is part of a signaling pathway that keeps tissues from overgrowing and helps maintain normal organ size.
Risk
What if the gene does not work
Reduced activity of the LATS1 gene weakens a cell signal that helps switch off YAP and TAZ, two proteins that promote cell growth. Milder variants may leave some control intact, while more severe variants can reduce it more.
Treatment
What does that mean for your treatment
No treatment or management approach tied specifically to a pathogenic or loss-of-function variant in the LATS1 gene is currently established in clinical guidelines. LATS1 is being studied as a cancer biomarker, and drugs aimed at this cell growth pathway are under investigation.
Gene function
What if the gene works
Cell growth works best when it is carefully timed. The LATS1 gene helps your body keep that balance by turning down growth signals and supporting orderly cell division. Understanding how the LATS1 gene controls cell growth and organ size makes its day to day role easier to picture.
The LATS1 gene helps put the brakes on cell growth when enough cells are already present. It does this by adding small chemical tags to YAP and TAZ, two proteins that can switch growth programs on.
This gene helps cells respond to crowding and to signals from nearby cells. That response supports contact inhibition, meaning cells tend to slow growth when they are touching their neighbors.
During cell division, the LATS1 gene helps time several steps so one cell can split into two in a controlled way. This supports accurate sharing of genetic material and steady tissue renewal.
What is a variant?
A genetic variant is a minor change in a gene’s DNA sequence. Changes like this are common and are part of normal human diversity, including differences in appearance, metabolism, or the way the body responds to environmental influences. Many do not have any noticeable effect and simply represent natural genetic variation. In some situations, though, a variant can change how a gene works more significantly and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
When people ask how variants influence the LATS1 gene's function, the key issue is how much they weaken the protein made from it. Some variants slightly lower protein stability or its signaling activity, while more disruptive variants can shorten the protein, prevent key cell-to-cell interactions, or cause near-complete loss of function. This can leave cells with less controlled growth and survival signaling, with effects that range from mild to marked.
How variants are linked to conditions
At this time, the LATS1 gene does not yet have a broadly confirmed link to a specific health condition, although research on LATS1 gene variants and disease risk is still developing. If you have a confirmed variant in the LATS1 gene, your doctor or genetic counselor can explain what that result may mean for you and your family in the context of your personal and family history.
A variant is not necessarily a diagnosis
Gene variants are a normal feature of human biology and are common throughout the general population. Most do not have a direct effect on health and simply reflect natural human diversity. For many genes, carrying a variant associated with a condition indicates a possible link rather than a definite diagnosis, especially when multiple genes and environmental factors are involved. In some cases, though, a single well-characterized variant in a specific gene is enough to confirm a diagnosis.
Are there things that can increase or change my risk?
There isn't yet broadly confirmed evidence on specific factors that increase or reduce health risk related to the LATS1 gene. If a change in LATS1 has been found in you or your family, a doctor or genetic counselor can explain what it may mean in the context of your personal and family history.
Inheritance of LATS1 variants
There is not yet a broadly confirmed, disease specific inheritance pattern for the LATS1 gene, so how LATS1 gene variants are inherited in relation to a clearly established inherited condition remains uncertain. Research may clarify this over time. The LATS1 gene is located on chromosome 6, which is an autosome, so you inherit one copy from your mother and one copy from your father.
What does my LATS1 result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific condition for LATS1, though this understanding can change as research develops. If you have a specific LATS1 result and questions about what it could mean for your family, a doctor or genetic counselor can help explain it in the context of your personal and family history.
Genetic information
Genetic testing
How you find out about variants
Genetic testing of the LATS1 gene looks for variants in a DNA sample, usually from blood or saliva. A lab reads the gene's sequence and compares it with a reference to spot changes. Results may show a benign variant, a pathogenic variant, or a variant of uncertain significance.
When should I consider getting a genetic test?
There is not yet a broadly established, LATS1-specific clinical reason for genetic testing. Decisions about testing are usually based on your personal and family history, such as several close relatives with cancer, and are best made with a doctor or genetic counselor.
A genetic result is only one part of your health story
Genetic results can be informative, but what they show varies by the condition and the kind of variant involved. Lifestyle, environment, age, and medical history are among the many factors that influence how the body functions over time. For some conditions, especially those affected by many genes, genetic information offers context rather than certainty and is most useful when viewed alongside other parts of care. In other situations, a genetic result may give a clear answer. In areas like 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 your body responds to medicines. Small differences in genes can change how a drug is absorbed, broken down, moved through the body, or how strongly it acts on its target. This helps explain why the same treatment works well for one person, does less for another, or causes more side effects in some people, and it is a normal part of human variation.
What is Pharmacogenetics?
Pharmacogenetics examines how differences in a person’s genes affect the way they respond to medicines. By studying links between genes and drugs, it helps explain why the same treatment can work differently in different people. For many medicines, genes influence how the body handles a drug and how strong its effects may be. This information can support treatment choices that are better informed and more personalized. More detail on this topic is available in the LearnHub.
Drugs influenced by the LATS1 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in guiding medication response, so questions about medicines, side effects, or your health are best discussed with your doctor.
History
The LATS1 gene entered cancer genetics through studies of cell growth control in the 1990s, when researchers identified it as a human tumor suppressor gene. It was named after “large tumor suppressor,” reflecting early findings in laboratory models. Initially understood only through visible traits, later recognized as tied to a specific gene, its story became closely linked to work on the Hippo signaling pathway, a major pathway that helps regulate organ size and cell division. From these first observations, research expanded steadily. Scientists then showed that the LATS1 gene had close parallels with growth-control genes first studied in fruit flies, helping connect basic biology with human disease. That work made LATS1 part of a broader shift toward understanding how disrupted growth signals can contribute to cancer.