New Drug Suppresses HIV & Protects Immune Cells With a Single Dose

New HIV Drug Suppresses Virus in Humanized Mice

Yale researchers have developed a chemical compound that suppresses HIV and protects immune cells for weeks with a single dose.

A team of Yale researchers tested a new chemical compound that suppresses HIV, protects immune cells, and remains effective for weeks with a single dose. In animal experiments, the compound proved to be a promising new candidate to enhance current HIV treatment regimens — without increasing toxic side effects, the researchers said.

The finding builds on the work of senior co-authors Karen S. Anderson and William L. Jorgensen, who used computational and structure-based design methods to develop a class of compounds, that target a viral protein essential for HIV to replicate. The researchers refined this class of compounds to boost potency, lower toxicity, and improve drug-like properties in order to identify a promising preclinical drug candidate. In collaboration with Priti Kumar’s lab at Yale, the drug candidate was tested in mice with transplanted human blood cells and infected with HIV.

In the humanized mice, the compound achieved key goals of HIV treatment: It suppressed the virus to undetectable levels in the blood; it protected the immune cells that the virus infects; and it worked synergistically with approved HIV medications, the researchers said.

Additionally, working with Yale drug delivery expert Mark Saltzman and his laboratory, the researchers found that the effects of a single dose of the compound — delivered in a long-acting nanoparticle form — lasted for nearly a month.

While further testing is needed, the compound has the potential for improving treatment for HIV, which affects 37 million people worldwide, said Anderson. “Our drug candidate works synergistically with all current classes of HIV drugs, as well as some that are also being tested in clinical trials. It enhances their potency and could be a better combination medication.”

Other Yale authors are Shalley N. Kudalkar, Jagadish Beloor, Elias Quijano, Krasimir A. Spasov, Won-Gil Lee, and José A. Cisneros.

The study, published by Proceedings of the National Academy of Sciences (PNAS), was supported by National Institute of Health grants.

Reference: “From in silico hit to long-acting late-stage preclinical candidate to combat HIV-1 infection” by Shalley N. Kudalkar, Jagadish Beloor, Elias Quijano, Krasimir A. Spasov, Won-Gil Lee, José A. Cisneros, W. Mark Saltzman, Priti Kumar, William L. Jorgensen and Karen S. Anderson, 17 November 2017, PNAS.
DOI: 10.1073/pnas.1717932115

4 Comments on "New Drug Suppresses HIV & Protects Immune Cells With a Single Dose"

  1. Jeremiah mwakasonda | January 9, 2018 at 7:41 am | Reply

    This is a big step in the fight against a disease that is causing havoc to mankind. We are using mice. Instead of executing murderers, hair raising criminals, executing them using purchased chemicals is a great waste.Lets start using such scum for something useful to mankind.Use them for such very important research .Have we ever asked ourselves what do we gain by simply executing them.Lets recycle such condemned because they have to die anyway

    • Instead of trying to demonize prisoners i believe we should look for simulations in the future, that way we can simply forego this whole thing. But yeah, i have wondered that too, i don’t think we should force them, but maybe we could offer them prison years reduction for some prisoners that willingly participate in scientific experiments, even more if they already have a certain disease.

      Remember that you could be one prisoner a day too (the weakness they have lies in you too, human) and remember that some people are condemned to death without justice.

  2. Eunice Chilufya | January 9, 2018 at 10:16 am | Reply

    Am loving the kind of hard working scientist researchers…monotherapy is better than daily doses..

  3. Congratulation to all Dr’s who worked best beyond their capacity to come up with monotherapy treatment, blessed are those who are siccking cure for others.

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