OHSU researcher closer to HIV cure

OHSU researcher closer to HIV cure


An Oregon Health and Science University (OHSU) HIV researcher and his team have found the hiding place where the HIV virus shields itself from an assault by the body’s immune system – another step toward finding a cure to the disease.

Dr. Louis Picker and his team say the next step is creating a strategy to breach the hiding place.

“The first thing we need to do in a cure is figure out what the barriers are,” Picker said.“You peel back the onion until you get a good map of your enemy.”

Picker is one of the top researchers worldwide working on a vaccine against HIV, the virus that causes AIDS. In 2013, his team declared they had developed a vaccine that immunized monkeys. Today, five years later, the monkeys are still virus free.

“They’re cured,” Picker said.

The research published on Monday in the journal Nature Medicine marks a new phase: trying to figure out how to kill the virus once someone is infected. This task is more difficult than devising a preventative vaccine.

“It’s going to be a much bigger deal,” Picker said. “It’s 100,000-fold bigger.” A drug that eliminates HIV after infection could cure the 35 million people around the world with HIV.

In 2013 alone, 1.5 million died of AIDS, according to the World Health Organization.

The monkeys tested were infected with simian immunodeficiency virus, SIV, then treated with anti-retroviral therapy (ART). ART essentially freezes the virus, preventing it from infecting new cells. It does not destroy the virus, however, which is why patients have to remain on ART for the rest of their lives.

Picker’s team discovered that the virus found sanctuary in B cell follicles, which are lodged in lymph nodes. B cell follicles cannot be breached by T cells, the elite troops of the immune system.

“If a pathogen can get into a B cell follicle, it’s going to be shielded from the killer T cell response,” Picker said. “Imagine they’re in the church, so to speak, and the soldiers can’t get in.”

A successful cure would first have to penetrate the barrier, allowing the vaccine to fight the virus. The barrier itself does not discourage Picker.

“What’s more discouraging is if you don’t know about these things and you try something and it doesn’t work,” Picker said.“If you figure out beforehand that this is a barrier before you get your hopes up, you figure a way around this.”

Picker believes such a work-around is entirely doable.

“It sounds pretty radical but it happens every day in cancer therapy,” Picker said. “I think we can come up with a more subtle treatment than that.”

Picker estimates a cure surmounting these barriers can be found in three or four years.

Israeli company invents anti-microbial fabric effective against Ebola

Israeli company invents anti-microbial fabric effective against Ebola

The Israeli company Argaman Technologies recently unveiled a new fabric that is flame-proof, anti-bacterial, and anti-viral. The “permanently self-sterilizing” fabric can potentially be used to protect medical workers against Ebola, a major breakthrough.

The company’s home web page reads, “We’ve reinvented cotton.”

Other uses include keeping astronauts’ clothes clean in space, preventing laundry from smelling, and curing athlete’s foot with socks made from the new fabric.

“When astronauts enter outer space, muscular atrophy and bone thinning begin immediately,” Jeff Gabbay, the founder, CEO, and textile engineer of Argaman explained. “To reduce these effects, they must do high-level aerobics at least two hours a day. You want to control their core body temperature as they do these aerobics, and you want their clothing to stay dry and odor-free because they can’t do laundry in space. That’s what you get with our shirts.”

“We’re going to improve people’s lives and relieve suffering,” Gabbay said. “With these new textiles, we can reduce infection rates and bring down the cost of patient care significantly—by 27%, according to hospital tests in Israel. I’m willing to give every hospital these fabrics for free. Just give me back half the money you save on antibiotics and patient care.”

Gabbay’s short-term goal is to sell the socks as cures for athlete’s foot. “The longer-term goal is to prove that they also close diabetic foot ulcers and will allow diabetics to keep their toes on their feet,” Gabbay added. “We will go through the regulatory process to make those claims.”

Argaman, Hebrew for “crimson,” has this mission statement: “We develop and manufacture in Israel and are focusing our energies to become Israel’s leading textile manufacturer and the world’s most innovative name in permanently self-sterilizing, flame-proof, multifunctional yarns and fabrics.”

Argaman’s process is also unique. According to the company’s website, “Argaman uses ultrasonic waves to blast natural compounds into fibers so that a permanent mechanical bond is formed between the compound and substrate.”

Argaman has found that ultrasonic waves provide better performance and efficiency than conventional treatments, which can cause environmental issues. The company’s process also recycles all the water and chemicals it uses.

“I do not ever seek to be alone in a market and I’m never afraid of competition,” Gabbay said. “The issue is how you compare to your competition. We have a superior product with better technology, better quality and fewer environmental concerns. This is one of those rare opportunities in life that, if you handle it correctly, just think of all the good we can do.”

For more information, visit: http://www.israel21c.org/headlines/these-clothes-crush-viruses-bacteria-and-fire/