Huntington Disease Lighthouse Families

For HD families ... by HD families
 

news on the web

Posted by orzoro 
news on the web
February 13, 2012 04:52PM
Re: news on the web
February 13, 2012 06:03PM
Reading the article now! This is a big deal, folks!!!! It's a continuation of the phosphorylation research that I covered two years ago, the research by Dr. William Yang and Dr. Joan Steffan that Nancy Wexler was so excited about.

I'll provide a link when I get the update finished.
Re: news on the web
February 14, 2012 09:35AM
Thanks for posting this. It's very exciting and I'm looking forward to reading Marsha's update. spinning smiley sticking its tongue out

Patty
Re: news on the web
February 14, 2012 12:44PM
I google hd pretty much everyday and saw this. Nice Valentine's present. Another path of possibilities!!
Re: news on the web
February 14, 2012 01:06PM
Marsha-

Because this has an already good safety profile, any sense of how quickly Phase 1 trials would begin?

Also, do you have any insight on whether this group plans to test in primates before moving to humal trials?

thanks!!
eve
Re: news on the web
February 14, 2012 03:12PM
Orzoro, thanks for posting this! Also thanks to Marsha for commenting. I LOVE to hear promising treatment news! This is the best Valentine's Day present I could ask for!!!
Re: news on the web
February 14, 2012 05:23PM
Still working on reading the articles and other supporting articles so I can relate all the important stuff. I expect to have the update posted tomorrow morning.

According to Dr. Sipione, the lead investigator, clinical trials could begin in one to two years. There is no need for primate studies since GM1 has already been used in a pilot study back in 2002 with AD patients. There's a five year study done in PD which resulted in a good safety profile as well but I'm not sure if that was oral administration or infusion.

Two caveats:

1) GM1 doesn't efficiently cross the blood brain barrier so it would have to be administered into the ventricles of the brain through a Medtronics pump.

2) Two years ago, Dr. Joan Steffan raised the possibility that a treatment to phosphorylate serines 13 and 16 might need to be an early treatment because after the protein clearing mechanisms of brain cells are no longer functioning at top efficiency, it could potentially make things worse by piling up even more HD protein in the nucleus of the cell. I've written to Dr. Yang who was going to look at this in older HD mice to see if he has any data (I haven't seen any published).

The mice in the current study are five month old YAC128 mice. They have fairly severe motor symptoms but no neurodegeneration so it wasn't a really early treatment but not a later one either. As I said, I'm trying to find out about any data supporting or not supporting Dr. Steffan's hypothesis.

The good news here is that this is the FIRST HD treatment in which the mice got better. We have treatments which postpone onset and delay progression in the mice but this is the FIRST to improve them, reversing their symptoms.
Re: news on the web
February 14, 2012 06:59PM
Wow, this is DEFINITELY interesting...look forward to your article Marsha! smiling smiley smiling smiley smiling smiley
Re: news on the web
February 15, 2012 07:58AM
Marsha,
Thank you for your information.
Paula
Re: news on the web
February 15, 2012 12:25PM
This is great news! HDbuzz also covered it the other day: [hdbuzz.net]

Look forward to hearing more Marsha!

Matt

[www.hdyo.org]
Re: news on the web
February 15, 2012 01:33PM
Still working. Have heard back from Dr. Yang and Dr. Truant re questions that I had. Our researchers are wonderful!.
Re: news on the web
February 16, 2012 09:51AM
Okay, my update has been posted on the HDSA website. I wanted to get as much information as I could to share with you about what is going on with this research and it took a while.

[www.hdsa.org]
Re: news on the web
February 16, 2012 10:39AM
Thank you Melissa for your follow-up. This is indeed so exciting. I guess though I couldn't get if indeed there is still concern on the latter stages, or this is still yet to be worked out.

It feels good to see such great commitment out there from the researchers and loved that they said "jumped for joy". Please let them know who much that means. Please keep us posted.
Re: news on the web
February 16, 2012 10:56AM
It's still to be worked out whether this would work in the later stages of the disease. The concern raised was based on cell model and fruitfly research and there might be no problem in mammals. I am encouraged that the YAC128 mice were five months old and the BAC mice were one year old but I think we have to look at older mice. I am going to advocate for research funding for this.
Re: news on the web
February 16, 2012 12:05PM
I'm sorry I meant Marsha. I am new to still sight. Thanks again
Re: news on the web
February 28, 2012 09:12PM
So....Marsha, can you honestly say if this worked what sort of time frame we would be looking at before it is fully approved? We are getting to the point for my hubby that he will probably start showing signs REALLY soon. Even a couple of years will make a difference for us. Do you think it will be in time for him?
Sorry, only registered users may post in this forum.

Click here to login