Saturday, July 21, 2018

ENCORE #92! – Approaching Targeted Treatments!

From the first moment my wife discovered she had breast cancer, there was a deafening silence from the men I know. Even ones whose wives, mothers or girlfriends had breast cancer seemed to have received a gag order from some Central Cancer Command and did little more than mumble about the experience. Not one to shut up for any known reason, I started this blog…That was four years ago – as time passed, people searching for answers stumbled across my blog and checked out what I had to say. The following entry appeared in April of 2016.


The thing most associated with those who suffer from the plethora of cancers that attack humans, is a person with a bald head – women and children in particular.

Nothing stirs us like an image of a child who has no hair, because we know perfectly well that they are sick. Nothing so makes the heart of a man quail as a bald woman. Nothing drives home the truth of our mortality as the sight of a woman we love who has lost all of her hair...

Those who have gone through radiation treatment or chemotherapy know that the death of hair follicles is one the side effects of the treatment. It happens because doctors and researchers are unable to precisely target treatments that ONLY destroy cancer cells: “Due to the body’s own defense mechanisms, most cancer drugs are absorbed into healthy tissue causing negative side effects, and only a fraction of the administered drug actually reaches the tumor, making it less effective, said Mauro Ferrari, PhD, president and CEO of the Houston Methodist Research Institute.”

Research Right Now! has been pushing for methods of introducing anti-cancer agents directly to the cancer cells.

Nanoparticles are one way researchers are doing this.

What’s a nanoparticle? Literally, it’s a particle that is one billionth the size of a meter.

In this line of research, scientists literally encase a cancer drug like tamoxifen (I’ve written about it here: http://breastcancerreaper.blogspot.com/2015/03/encore-8-take-tamoxifen-for-ten-years.html) in FAT. The particle can then be covered with a substance that will only attach to a cell that has a particular “cancer taste” on it. Then it delivers its death package and gets absorbed into the body.

Sounds simple, right?

It ain’t!

“The Houston Methodist team used doxorubicin [which] has adverse side effects to the heart and is not an effective treatment against metastatic disease…each component has a specific and essential role in the drug delivery process… [a] nanoporous silicon material…[plus] a polymer made up of multiple strands that contain doxorubicin [are taken] inside the tumor, the silicon material degrades, releasing the strands…these strands curl-up to form nanoparticles that are taken up by the cancer cells…the acidic pH close to the nucleus causes the drug to be released from the nanoparticles. Inside the nucleus…”

There is plenty of room for problems here, but the research grant they have has led to the point where “Houston Methodist…plans to fast-track the research to obtain FDA-approval and begin safety and efficacy studies in humans in 2017.”

We haven’t reached the point of delivering an anti-cancer vaccine (which GUY’S GOTTA TALK will focus on next time – though I’ll leave you with a teaser: “I Am Legend – the Movie”) – but we are moving toward a day where maybe my daughter and surely my granddaughter, will no longer have to dread  a cancer diagnosis.

Image: https://c2.staticflickr.com/6/5527/10893068965_1d328e8f71_b.jpg

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