I always tell people that when you’re in shoes like mine, you have to live in a glass-half-full world in order to maintain your sanity. If I focused on the negative… well, I’m not sure there would be any daylight left in the pit that I would have dug.
I hope you watched the video in this post, which explains a little bit about the genetic disorder that Asher was diagnosed with through DNA testing. In the video, it states that there are about 300 people in the world who have CFC. What’s not mentioned in the video is that 85% of those cases come from a mutation in the BRAF gene, thus most of the research is based on children with this mutation. Asher’s BRAF gene is not affected. The gene that’s causing such a ruckus for him is the MAP2K1 gene (sometimes called the MEK1 gene). MAP2K1 stands for “mitogen-activated protein kinase kinase 1,” and it looks like this:

The official description of the function of the gene is this:
The protein encoded by this gene is a member of the dual specificity protein kinase family, which acts as a mitogen-activated protein (MAP) kinase kinase. MAP kinases, also known as extracellular signal-regulated kinases (ERKs), act as an integration point for multiple biochemical signals. This protein kinase lies upstream of MAP kinases and stimulates the enzymatic activity of MAP kinases upon wide variety of extra- and intracellular signals. As an essential component of MAP kinase signal transduction pathway, this kinase is involved in many cellular processes such as proliferation, differentiation, transcription regulation and development.
So, in a nutshell, it sends signals throughout the body, telling it what to do – as do many genes.
Genes are made up of these things called exons, which are not gas stations, but little pieces that make up the code for a portion of the protein/gene. Put them together and you have a gene, like this:

In Asher’s case, one of his exons got the sequencing of the code wrong, putting an amino acid in the wrong spot, resulting in a disorder with an exceptionally long name condensed nicely into an acronym. A mutation in the MAP2K1 gene accounts for only 10% of kids with CFC. In other words, about 30 kids worldwide.
CFC, which stands for cardiofaciocutaneous, is a genetic disorder that affects the heart (cardio), facial features (facio), and the skin (cutaneous). It can also affect motor, speech, and mental development. It can range anywhere from mild to severe.
As I said earlier, the VAST majority of the research is based on children with mutations in the BRAF gene – very, very little is known about the condition when it involves the MAP2K1 gene. In the exceptionally long descriptive article from the NIH that was given to Chad and I when CFC was first put on the table as a possibility (which, by the way, was this time last year – I’ve had plenty of time to read up on this stuff), only three cases of children with MAP2K1 or MAP2K2 mutations were noted as a part of a study.
This is good news, in a sense – because it means that there is very little information out there about this mutation, which in turn means that Asher cannot be defined. You can’t say, “Oh, he’ll only function at this level” or “Oh, he’ll never do that.” He is truly an unknown variable. Asher has shown nothing but progress so far. Granted, it’s been at a slow pace, but he works incredibly hard and has come a long, long way since this time last year. He’s anything but static. His physical features are also very mild when compared to photos of kids with CFC, which is hopeful in and of itself.
BTW: All the studies are on kids because this disorder has only recently been identified – there is no inherent shortened life span or anything of that sort.
The other piece of good news is that this type of gene mutation has always been de novo, meaning it was sporadic and did not come from either Chad or me. It just sort of happened. The chance of any future children being affected with CFC is next to none.
So, that’s the upside to all of this. The diagnosis gave us a name, but it did not give us limits. Not that Asher would have paid attention to those anyway.
And if you made it through to the end, and especially if you followed a link or two – thank you for caring enough about us to want to learn more about our world. We love you for it.
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