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Home NEWS Science News Health

Sidekick microbubbles carry anti-cancer drugs, damage tumor vessels #ASA182

Bioengineer by Bioengineer
May 24, 2022
in Health
Reading Time: 3 mins read
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Sidekick Microbubbles Carry Anti-Cancer Drugs, Damage Tumor Vessels #ASA182
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DENVER, May 24, 2022 – Microbubbles can assist with localized drug delivery in a patient’s body by popping at a target site to create enhanced permeability of tumor blood vessels. By temporarily increasing the porosity of the blood vessels, the microbubbles can create a means for coinjected anti-cancer drugs to preferentially leak into the tumor for treatment.

Sidekick Microbubbles Carry Anti-Cancer Drugs, Damage Tumor Vessels #ASA182

Credit: Naomi Matsuura, University of Toronto

DENVER, May 24, 2022 – Microbubbles can assist with localized drug delivery in a patient’s body by popping at a target site to create enhanced permeability of tumor blood vessels. By temporarily increasing the porosity of the blood vessels, the microbubbles can create a means for coinjected anti-cancer drugs to preferentially leak into the tumor for treatment.

Naomi Matsuura, of the University of Toronto, and her team are adapting microbubbles to become more potent tools for cancer therapy. By shrinking the bubbles and directly loading them with anti-cancer drugs, the bubbles can lower the dose of free drug that is injected and diffuses into nontumor tissue in the body. This results in more targeted treatment and fewer side effects for the patient.

Matsuura will discuss her team’s results in her presentation, “Ultrasound-stimulated, drug-loaded bubbles for cancer therapy,” as part of the 182nd Meeting of the Acoustical Society of America at the Sheraton Denver Downtown Hotel. The session will take place May 24 at 11:30 a.m. Eastern U.S.

The team loaded taxanes, a commonly used anti-cancer drug, onto the bubbles. Because the drug is hydrophobic, it avoids water and sticks to the bubble easily, avoiding any leakage into the bloodstream or surrounding tissue until the bubble is stimulated by ultrasound.

They plan to extend the bubbles to carry other types of drugs as well, but the drug loading tends to be lower and less stable for hydrophilic materials.

“We are also modifying the pattern of the sound waves in a way that makes the anti-cancer drug more potent in comparison to a regular intravenous drug injection,” said Matsuura.

“If we can combine lower side effects from direct drug loading with a more potent effect of the drug by modifying systems that are already in place for patients, we have a chance to make an impact on the outcomes of cancer patients in a relatively short period of time.”

———————– MORE MEETING INFORMATION ———————–

USEFUL LINKS

Main meeting website: https://acousticalsociety.org/asa-meetings/

Technical program: https://eventpilotadmin.com/web/planner.php?id=ASASPRING22

Press Room: https://acoustics.org/world-wide-press-room/

 

WORLDWIDE PRESS ROOM

In the coming weeks, ASA’s Worldwide Press Room will be updated with additional tips on dozens of newsworthy stories and with lay language papers, which are 300 to 500 word summaries of presentations written by scientists for a general audience and accompanied by photos, audio and video. You can visit the site during the meeting at http://acoustics.org/world-wide-press-room/.

 

PRESS REGISTRATION

We will grant free registration to credentialed journalists and professional freelance journalists. If you are a reporter and would like to attend, contact AIP Media Services at [email protected].  For urgent requests, staff at [email protected] can also help with setting up interviews and obtaining images, sound clips, or background information.

 

ABOUT THE ACOUSTICAL SOCIETY OF AMERICA

The Acoustical Society of America (ASA) is the premier international scientific society in acoustics devoted to the science and technology of sound. Its 7,000 members worldwide represent a broad spectrum of the study of acoustics. ASA publications include The Journal of the Acoustical Society of America (the world’s leading journal on acoustics), JASA Express Letters, Proceedings of Meetings on Acoustics, Acoustics Today magazine, books, and standards.



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