Dianne Fair – TEDx Talk TRANSCRIPT
What if you or a loved one were diagnosed with an infectious disease: strep throat, an ear infection, bacterial pneumonia, tuberculosis, or a sexually transmitted disease?
Now imagine that there are no drugs that will work in effecting a cure for your infection. This is pretty scary. This is happening right now.
There are people dying, just like they used to before 1928, when penicillin was discovered.
Are we about to fall into the edge of the volcano? That would not be so good.
What I would like to propose today is that we need to encourage young and old scientists to explore new opportunities and new therapies. Not just antibiotics.
What else do we have? This is one of my heroes, a Scottish microbiologist who became Sir Alexander Fleming. He discovered penicillin in 1928, and he was worried about antibiotic resistance, too. Very, very concerned.
Antibiotics? Well, what are they?
Think of them as tiny chemical weapons that are produced by bacteria and fungi, so that they can kill off competitors in a nutrient-limited environment. These genes for antibiotics have been around for 4 million years, long before we humans needed Z-Paks. So this is not a new thing.
Antibiotic resistance can be easily detected, and antibiotic resistance is another weapon. Do you remember Spy vs Spy, if you’re old enough? So it’s an escalation of weapons. The antibiotic producers, that’s one weapon. The antibiotic resistance is another weapon.
Antibiotic resistance is one of those things that my students – and there’s two of them – I told you I was going to use the picture. You can detect antibiotic resistance by growing plate cultures of bacteria. On the left you have E. coli; on the right you have Staph aureus. And those little paper discs are treated with antibiotics like penicillin, tetracycline, Vancomycin, you guys did this, too. This is not new stuff. They did great, they did great by the way.
When you look at antibiotic resistance, this means that we’re now facing Super Bugs. And I don’t mean “super” in a good “Yay!”, “super” in a scary way.
What about bacteria? You’ve heard of MRSA, Methicillin-resistant Staph Aureus. This one scares me. What about tuberculosis– multiple drug-resistant tuberculosis and extensively drug-resistant tuberculosis. They’re out there. These infections are very scary and they may take one of your loved ones. Or, God forbid, they’ll take you. C. diff, Clostridium difficile– this one attacks the weakest of the patients, the elderly and the very, very young.
Well, before we all get bummed out, there have to be some good guys. There have to be. My training is soil microbiology so I love dirt. Especially the dirt in my garden. This used to be my son’s swing set, but when he got too big, and the swing set started getting tippy, I said, “You know what? It’s going to be a garden box.” Soil bacteria, soil fungi, they are natural antibiotic producers. This is one avenue to explore.
How about we start looking at more soil samples on Mars, or other extraterrestrial places? Places even on Earth, slopes of volcanoes where bacteria recolonize. I’m up for that, I’m totally going to volunteer. This is cool, this is sci-fi, this is Star Trek. How about we use viruses that attack bacteria to do the dirty work for us?
The T-even bacteriophages, one of my favorites is T4. The “even” stands for the even number. What they do is they attack bacteria and kill them, without antibiotics. This technology has been around, believe it or not, since the 1930s. It was discovered in France by a microbiologist. The technology was advanced to clinical applications in the 1950s.
But there’s a catch. This was behind the former Iron Curtain. This was in Russia, and Poland, and the original Georgia. Not our Georgia. This technology is very effective. What if pharmaceutical companies could maybe advance the technology to treat a patient with a virus, instead of an antibiotic or another type of drug? There’s a lot of philosophy.