Monday, August 2, 2021

Is Eczema Determined By Our Genes?


In a 2010 study of the entire human genome, multiple genes that significantly alter the function and composition of the skin in people with cases of eczema. Some of the genes affect the immune system and can result in inflammatory or allergic responses while other genes examined affect the skin exclusively. Genes that affect the skin such as the FLG gene, instruct the skin cells to make filaggrin, a large protein in the outermost layer of the skin (epidermis). In approximately 50 percent of people suffering from eczema, there is a mutation in the DNA sequence of the FLG gene that instructs the cells to make less filaggrin. Filaggrin is crucial to helping the epidermis retain moisture and helping the body protect itself from foreign toxins, bacteria, and allergins. When less filaggrin is produced due to the mutation in the DNA sequence, the skin can often end up dry and more prone to infection and allergic reactions. Genes that code for immune system function such as interleukin (IL) 4, 5, and 13, promote allergic inflammation. These genes pertaining to the immune system can also cause a reduction in the function and health of the epidermis as well as the effectiveness of the immune system’s response to pathogens. Excema is commonly triggered by environmental factors, but people with mutations in the mentioned genes may develop the condition suddenly. 

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By Katherine Morone


  1. This article not only shows a small portion of the genetic side of eczema, but also has lots of other useful information for those that are dealing with eczema, which can potentially help those to provide themselves with a higher quality of living with their disorder.

  2. I found your post quite interesting! It’s great that scientists are researching eczema and have seen what mutations are causing it. Hopefully, there will be genetic treatments for this condition in the future.

  3. These foundings and insights on the genetics of eczema can really change how we handle the condition and provide better treatment or support to the condition but also the immune system itself. I do see that this needs to be further discussed to make a huge impact that a lot are not seeing.

  4. This was very interesting and informative piece, it makes it easy to understand the genetics of this condition, but also our immune system.