http://www.genekey.com/
Besides considering the trials offered at Cincinnati Children's Hospital and waiting for results from GeneKey, I am also very interested in trying a treatment strategy suggested as "particularly promising" in the scientific journal, Cancer Cell on Dec 9th, 2013. The name of this article is "Targeting Oxidative Stress in Embryonal Rhabdomyosarcoma." The findings in this article are the results of the molecular profiling analysis done collaboratively by St. Jude Children's Research Hospital in Memphis TN, Nationwide Children's Hospital in Columbus OH, UT Southwestern Medical Center in Dallas TX, Seattle Children's Hospital, and The Genome Institute in Washington DC. Whole genome sequencing of the tumor and normal genomes for 13 patients with rhabdomyosarcoma was conducted. Two of these patients had recurrent embryonal rhabdomyosarcoma. The article discussed the differences found in the recurrent tumors vs. those that had not recurred and also the importance of considering the changes that happen to the genome of tumors that have been exposed to chemotherapy. During this investigation it was discovered that embryonal rhabdomyosarcoma is particularly sensitive to oxidative stress. (at least this appeared to be the case for the tumor samples they were analyzing). Oxidative stress is caused when oxygen-free radicals and other byproducts of cell metabolism build up in cells. Skeletal muscle cells and cancer cells have high levels of reactive oxygen species (ROS) because of their unique metabolic demands. Therefore, it was reasoned that a cancer with features of skeletal muscle (rhabdomyosarcoma) may have even higher levels of ROS than other cancer cells and be particularly sensitive to therapeutics that increase oxidative stress. The genomic data from the tumor analysis indeed suggested that there were transversions in G-T that would lead to higher ROS and increases in expression of genes in the p38MAPK pathway. There were also Chromosome 8 gains and deregulation of the MCU/MICU1 expression. These can lead to mitochondrial dysfunction and oxidative stress. Also, several genes involved in regulation of metabolism, mitochondrial function, and oxidative stress were differentially methylated in rhabdomyosarcoma, including PTK2, COX7A1, NOSIP, NOS1, ATP2A3, DDAH1, GLRX, and TXNDC12. Due to amount of genomic data suggesting oxidative stress as a target, embryonal rhabdomyosarcoma xenografts were exposed to medications that were suspected to increase oxidative stress in this cell type. The results indicated that this was indeed a mechanism that was effective against embryonal rhabdomyosarcoma on the xenografts. Several of the medications used to test this theory were not chemotherapy agents and indeed some of them were effective. The authors of this article stated, "Taken together, these genomic, molecular, and cellular data suggest that therapeutics that increase reactive oxygen in rhabdomyosarcoma may be particularly effective and may contribute synergistically to current standard of care using vincristine, actinomycin, and cyclophosphamide. The synergistic effects of carfilzomib or alvocidib with HDAC inhibitors is particularly promising."
After reading the article about targeting oxidative stress in rhabdomyosarcoma, it compelled me to go ahead with starting Brody on hemp oil with a very high CBD content (18% -24%CBD). (This is something not covered by insurance and is also extremely expensive by the way). I had read a few other articles that talked about the various mechanisms by which CBD can be effective against various types of cancer. One of these mechanisms that was shown to be involved with the anti-tumor effects of CBD is via increasing oxidative stress. I decided if hemp oil can increase Brody's appetite, decrease pain, and possibly fight his cancer too and all without any major side effects then it's most certainly worth trying. I just wish it didn't cost so much. A 60-day supply costs about $2500.00. Brody has been doing well with the hemp oil. It has definitely increased his appetite and improved neuropathy pain and I hope we find that it helps slow down the cancer too. He does not seem to be having any side effects from the hemp oil. It's nice to be able to give him something helpful without so much toxicity involved.
For those that want more info on hemp oil. Here is a link to the website from which we order it from. We are using a highly concentrated gel that comes in a 10gram tube. Each gram of the gel provides 240mg of CBD. We squeeze out 1/2ml of the gel into an empty size #1 capsule. Brody then swallows the hemp oil gel inside this capsule. This way he does not need to taste it. He gets about 120mg of CBD in each capsule and we have him take 1 capsule twice a day. We order the empty capsules online separately from a different company than where we buy the hemp oil. You can order CBD capsules and CBD gum and CBD drops too. But these do not provide as much CBD.
http://realscientifichempoil.com/products/
http://realscientifichempoil.com/products/
I am planning to ask our oncologist tomorrow to consider adding the carfilzomib and an HDAC inhibitor to Brody's regimen. (This is the combo that was suggested as particularly promising to add to standard therapy). Brody is no longer taking standard therapy but he may be able to add these medications to his current chemo regimen. I am worried about the increased side effects especially with the carfilzomib. It is a chemotherapy agent and like most, it has quite the list of side effects. It does seem to be one that would not be super harsh on his kidney. This is always a worry since Brody only has 1 kidney. As for the HDAC inhibitor, Depakote (valproic acid) is a powerful HDAC inhibitor. This medication is usually used to treat epilepsy but has several other uses also. One of these other uses beside a possible anti-cancer agent that would be particularly useful for Brody is to treat neuropathy. Depakote can work very well to lessen and treat neuropathy. Brody is dealing with a significant amount of neurapathy. I have noticed that his pain with the peripheral neuropathy is definitely improved since starting the hemp oil (he was very sensitive to the slightest touch and often experienced pain when somebody lightly touched him) but he certainly needs some more assistance with treating nerve damage. Depakote is not the HDAC inhibitor that was mentioned in the targeting oxidative stress in embryonal rhabdomyosarcoma article though. I think it may be worth considering to use it instead though due to less side effects and the other potential benefits too. And, it is very strong HDAC inhibitor.
Sorry for maybe the abundance of details on possible therapy options in this blog post. (Believe me this is just a very short rambling of the many thoughts that have been going through my mind these last few months regarding therapy for Brody). I thought I should share a little more detail though for the folks I know that are reading this blog who also have a child battling this devastating disease. I read many other blogs of other children battling rhabdomyosarcoma and I know other Moms are out there reading mine too.
Thanks to everyone again for your continued prayers and support. We definitely need it.
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.