The SLAMF7 gene helps certain immune cells, especially natural killer cells, communicate and attack abnormal cells. If it does not work as expected, immune signaling can change and the body may be less effective at controlling some blood cancer cells. This gene plays an important role in how the immune system recognizes plasma cells, a type of white blood cell that can become cancerous in multiple myeloma. In medicine, it is best known as the target of elotuzumab, a treatment used for some people with multiple myeloma.
What is a gene?
Genes are stretches of DNA that carry instructions your cells use to make molecules or manage processes in the body. Some genes hold the information needed to produce proteins, the parts of cells that do much of the work. Other genes mainly regulate when certain processes happen, where they take place, and how strongly they operate. Taken together, genes affect how the body develops and functions, and they can also shape how you respond to food, stress, or medications. For a more detailed look at this topic, you can learn more in the LearnHub.
Overview
SLAMF7Gene function
What if the gene works
The SLAMF7 gene helps natural killer cells and some other immune cells communicate and stay active. Its protein sits on the cell surface and supports immune responses, including how these cells attach to and signal each other.
Risk
What if the gene does not work
Changes in the SLAMF7 gene can weaken or alter signaling between immune cells, especially natural killer cells and some white blood cells. Milder variants may slightly change cell activation, while more severe variants can more clearly disrupt immune cell communication.
Treatment
What does that mean for your treatment
No SLAMF7-specific treatment or management approach is currently established for people with a pathogenic variant in the SLAMF7 gene. Separately, SLAMF7 is an established drug target in multiple myeloma, where the medicine elotuzumab binds the SLAMF7 protein on cancer cells and certain immune cells.
Gene function
What if the gene works
Your immune system depends on steady communication between cells, and the SLAMF7 gene helps with that process. It is especially active in natural killer cells, a type of white blood cell involved in early defense. Understanding what the SLAMF7 gene does in the immune system helps show how immune cells recognize one another and coordinate their response.
The SLAMF7 gene makes a surface protein that lets certain immune cells send and receive signals when they meet. This helps coordinate a measured immune response.
Its protein helps natural killer cells (immune cells that patrol for threats) form close contact with other cells. This supports direct cell to cell communication in the immune system.
In natural killer cells, the SLAMF7 gene helps start internal signals that support activation and the release of immune substances. This helps these cells respond in a controlled way during everyday immune defense.
What is a variant?
A genetic variant is a slight difference in the DNA sequence within a gene. These differences are common and help explain normal human diversity, including variation in appearance, metabolism, and the way the body reacts to environmental influences. Many variants do not cause any noticeable effects and are part of natural genetic variation. Sometimes, though, a variant changes how a gene works more significantly and may contribute to or lead to a genetic condition.
Genetic variants
What if the gene does not work
Variants in the SLAMF7 gene can change the receptor's shape, stability, or ability to connect with partner proteins, which may alter signals inside the cell. The effects of SLAMF7 gene variants on protein function can range from mild changes in receptor levels to more severe changes that impair folding, block movement to the cell surface, or disrupt internal signaling. Some variants may have little functional effect, while others can reduce or largely silence the protein's activity.
How variants are linked to conditions
The SLAMF7 gene does not yet have a broadly confirmed link to a specific inherited health condition, though research on SLAMF7 gene variants linked to conditions is still developing. Anyone with a confirmed SLAMF7 gene variant should rely on guidance from their doctor or genetic counselor rather than general information.
A variant is not necessarily a diagnosis
Genetic variants are a routine part of human biology and are widely found across the general population. Most do not directly affect health and simply reflect normal human diversity. For many genes, carrying a variant associated with a condition indicates a possible link rather than a certain diagnosis, particularly when multiple genes and environmental factors also play a role. In some situations, though, a single well-established variant in a particular gene is 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 risk related to the SLAMF7 gene itself. For most people, changes in health linked to SLAMF7 are not used on their own to predict whether a disease will happen. Anyone worried about personal risk can talk with a doctor or genetic counselor.
Inheritance of SLAMF7 variants
There is not yet a broadly confirmed Mendelian inheritance pattern tied to a specific human condition for the SLAMF7 gene, so SLAMF7 gene inheritance is not described as a clear autosomal dominant, autosomal recessive, or X linked pattern. The SLAMF7 gene is located on chromosome 1, which is an autosome. That means each person inherits one copy from their mother and one copy from their father.
What does my SLAMF7 result mean for my family?
There isn't yet a broadly confirmed inheritance pattern tied to a specific health condition for SLAMF7, though this can change as research develops. If you have a specific SLAMF7 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
To look for changes in the SLAMF7 gene, genetic testing for SLAMF7 variants usually uses a blood or saliva sample. A lab reads the DNA in this gene, often as part of a larger gene panel or exome test, and reports whether a variant was found and how it is currently classified.
When should I consider getting a genetic test?
There is not yet a broadly established, SLAMF7-specific reason for routine genetic testing. Testing decisions are usually based on your health history, family history, and the condition being looked at, with help from a doctor or genetic counselor.
A genetic result is only one part of your health story
A genetic result can provide useful insight, but how much it can tell you depends on the condition and the kind of variant involved. Over time, many factors, including lifestyle, environment, age, and medical history, also influence how the body works. For some conditions, especially those shaped by many genes, genetic information offers context rather than certainty and is most helpful when considered 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 handles a medicine and how strongly you respond to it. This helps explain why the same treatment may work well for one person, seem less effective for another, or cause more side effects in someone else. Some people process a drug more quickly, while others break it down more slowly or are more sensitive to its effects. These differences are common and are one reason medication response can vary from person to person.
What is Pharmacogenetics?
Pharmacogenetics is the area of study that examines how genetic differences affect the way people respond to medications. It looks at relationships between genes and drugs to help explain why the same treatment may work differently from one person to another. For many medicines, genes influence how the body processes a drug or how strong its effects are. This knowledge can support more informed and more individualized treatment decisions. More information on this topic is available in the LearnHub.
Drugs influenced by the SLAMF7 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in predicting how medicines will work, so general concerns about symptoms, side effects, or treatment choices are best discussed with your doctor. SLAMF7 is mainly studied as a marker on certain immune cells and some blood cancer cells, rather than as a gene used to guide routine prescribing.
History
SLAMF7 entered the literature in the early 2000s, when researchers identified it as a member of the signaling lymphocytic activation molecule family and gave it names such as CS1 and CRACC. Initially understood only through visible traits, later recognized as tied to a specific gene, it drew growing attention in blood cancer research. From these first observations, research expanded steadily, especially in multiple myeloma, where SLAMF7 became an important treatment target. A major milestone came in 2015, when the SLAMF7 targeted medicine elotuzumab was approved in the United States for certain people with multiple myeloma. Since then, SLAMF7 has remained best known for its role in the development of antibody based cancer therapies.