Nanotech strategy shows promise for treating autoimmune disease In a Scripps Research study, a nanoparticle treatment cured' mice that had a genetic arthritis condition.
December 01, 2022
LA JOLLA, CA Scientists at Scripps Research have reported success in initial tests of a new, nanotech-based strategy against autoimmune diseases.
The scientists, who reported their results on November 23, 2022, in the journal ACS Nano, engineered cell-like nanoparticles that target only the immune cells driving an autoimmune reaction, leaving the rest of the immune system intact and healthy. The nanoparticles greatly delayed, and in some animals even prevented, severe disease in a mouse model of arthritis.
The potential advantage of this approach is that it would enable safe, long-term treatment for autoimmune diseases where the immune system attacks its own tissues or organs using a method that won't cause broad immune suppression, as current treatments do, says study senior author James Paulson, PhD, Cecil H. and Ida M. Green Chair of Chemistry in the Department of Molecular Medicine at Scripps Research.
Autoimmune diseases such as rheumatoid arthritis are caused when the immune system mistakenly attacks a person's own tissues or organs. These illnesses affect an estimated 10 million people in the U.S. alone. Treatments are available and can be effective for many patients, but they tend to suppress the immune system indiscriminately, creating an enhanced susceptibility to infections and cancers among other side effects.
Paulson and his team have taken an approach that targets the immune system more narrowly. Many autoimmune diseases are triggered or driven by immune attacks on just one protein in the patient's body, known as a self-antigen. The idea underlying the nanoparticle strategy is to eliminate or deactivate only the immune cells that attack that self-antigen an approach that could be at least as effective as broad immune suppression, without the side effects. Autoimmune diseases that are dominated by immune responses to a single self-antigen include some forms of arthritis, the skin blister disease known as pemphigus and the thyroid ailment Graves' disease.
The researchers, including first author Katarzyna Brzezicka, PhD, a postdoctoral research associate in the Paulson lab, research assistant Britni Arlian, and other lab members, designed nanoparticles that could deactivate two types of immune cells: B cells and T cells. On its surface, each nanoparticle bore copies of a target self-antigen, plus a sugar-related molecule that can bind to a special off switch receptor on B cells called CD22. B cells, which make antibodies and are specific to different antigens, will effectively shut themselves off if they encounter both the particular antigen they target and the binding partner of CD22 at the same time.
Each nanoparticle also was laced with a powerful compound called rapamycin to stimulate the production of immune cells called regulatory T cells. Treg cells, as they're also known, are responsible for suppressing other T cells needed to generate an autoimmune attack. The overall aim of the study was to effectively knock out only the B and T cells that recognize the self-antigen, leaving the rest of the B- and T-cell populations intact.
The researchers first demonstrated that their nanoparticle-based strategy could tolerize the mouse immune system to a chicken protein, ovalbumin, that would otherwise trigger a strong response. Next, they tested the strategy in a widely used mouse model of arthritis, in which the mouse immune system is genetically predisposed to attack a self-antigen called GPI. The scientists showed that treatment of the mice with GPI-tolerizing nanoparticles at the age of three weeks greatly delayed the development of arthritis signs that would normally appear a week or two later. In fact, about a third of the mice remained arthritis-free for the maximum follow-up period of 300 days. Tests confirmed that the treatment dramatically reduced the mice's production of anti-GPI antibodies, and at the same time boosted their Treg populations.
Paulson says his team plans to follow up these highly promising results with further optimization of the nanoparticle strategy.
We were able to cure' a third of these animals in this early demonstration, and I think theres the potential to combine our nanoparticles with other immune modulator treatments to make it even more effective, Paulson says. So that will our next step as well as demonstrating our technology against other autoimmune diseases caused by unwanted immune responses to a self-antigen.
Suppression of Autoimmune Rheumatoid Arthritis with Hybrid Nanoparticles That Induce B and T Cell Tolerance to Self-Antigen was co-authored by Katarzyna Brzezicka, Britni Arlian, Shengyang Wang, Merissa Olmer, Martin Lotz, and James Paulson, all of Scripps Research.
This work was funded in part by the National Institutes of Health (R01AI050143, R01AI132790).
Autoimmune Diseases Immunology & Microbiology Paulson, James
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
14/11/2026
Marcelo Dai's Live Session Captured with URSA Cine Immersive
Brie Clayton November 14, 2026
0 Comments
Artist takes viewers on an immersive journe...
14/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
14/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
14/11/2026
Newest Lenses, Horizon Anamorphic Seminar & Guided Lens Character Experience Highlight Creative Possibilities
At the 2026 Toru CAMERIMAGE Film Festival, ZEISS...
14/11/2026
Sonnet Announces Black Friday Sale on Select Products
Brie Clayton November 14, 2026
0 Comments
WHAT: Sonnet Technologies is having a sale on a select...
14/11/2026
Berklee Alumni Shine at the 2026 Latin Grammy Awards This year's winners included songwriters, engineers, and performers who contributed to acclaimed reco...
13/11/2026
The UIM E1 Series wraps its third season this week with the Bombay Sapphire E1 Miami GP, Nov. 11-14, on Biscayne Bay at the Miami Seaplane Base on Watson Island...
13/11/2026
In-venue and creative video staffers at the professional and collegiate level ha...
13/11/2026
Singer-songwriter Benson Boone will headline entertainment for the Discover NHL Winter Classic between the Utah Mammoth and Colorado Avalanche at Rice-Eccles St...
13/11/2026
Blackmagic Design has announced the Blackmagic Ambisonic Microphone, a 7th order ambisonic microphone array that captures spatial audio for immersive video prod...
13/11/2026
SMPTE has announced that The Studio B&H and Riedel Communications will provide the video infrastructure and communications technology for the Solutions Hub at t...
13/11/2026
The Hollywood Professional Association (HPA) has announced the theme and program focus for the 2027 HPA Tech Retreat, which takes place Feb. 14-18, 2027, in La ...
13/11/2026
Football Manager 27 Touch is available on Apple Arcade starting today. The game ...
13/11/2026
MotoGP has announced a two-year media rights agreement with ESPN covering the Un...
13/11/2026
Apple Sports, the free iPhone app, has added the Ultimate Fighting Championship (UFC) to its lineup of supported sports, in time for Saturday's UFC 334. The...
13/11/2026
The NBA and Fanatics Studios, the joint venture between Fanatics and entertainme...
13/11/2026
ESPN held its annual EDGE Innovation Conference last night and offered up an ove...
13/11/2026
Regional sports network gives Ithaca College, SUNY Cortland students a platform to thrive
One of the biggest games in Division III college football will be pla...
13/11/2026
Studer-inspired 500-series PWM compressor unveiled
The HLabs range already includes a couple of Studer-inspired offerings in the form of the PRE169 and EQ16...
13/11/2026
Download Now!
To view the white paper, please enter the following details:
--
First Name* First Name
Company*
Country* Please select your countryA...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Blue Lucy, the workflow orchestration and integration platform for broadcasters, rights owners and localisation companies, today announced an integration with c...
13/11/2026
Krotos announces Black Friday offers on Studio Pro and Studio Max
Brie Clayton November 12, 2026
0 Comments
First-year annual plans start at US$195.99...
13/11/2026
Blackmagic Design Announces Blackmagic Ambisonic Microphone
Brie Clayton November 12, 2026
0 Comments
New 7th order ambisonic microphone with 108 MEMS...
13/11/2026
Meet the Berklee Student Setting Planetary Motion to Music With his compositional platform SoniKosmos, Javier Roqueni aims to make the universe the ultimate i...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , er...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , er...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Share
{alert(Link copied)}).catch(err => {console.error(Failed to copy: , err)}) data-platform=copy_link data-action= class=font-ui-heading py-2 text-sm tex...
13/11/2026
Amagi, the media industry cloud company, today announced a partnership with Golden Times Media Technology (stock code 920021.BJ), a Beijing-based media and tech...
13/11/2026
CGI (TSX: GIB.A) (NYSE: GIB), one of the largest independent IT and business consulting services firms in the world, together with its Malaysian partner, Cedar ...
13/11/2026
SMPTE, the home for media professionals, technologists and engineers, today announced that The Studio B&H and Riedel Communications will provide the video infra...
13/11/2026
iWedia, a global leader in connected TV software solutions, will present its software-first approach to DRAM optimization at Android TV APAC Summit 2026 in Bang...
13/11/2026
Beginning today, November 13, Apple HomeView is available for purchase at Apple Store locations, on the Apple Store online, and in the Apple Store app in select...
13/11/2026
From pediatric research to smart hospitals, AI is helping care teams spend less time on routine tasks and more time with patients.
Health systems and startups...
12/11/2026
Industry leaders examine how Dynamic Media Facility, Media eXchange Layer, and c...
12/11/2026
The junior Tar Heel is embracing the technical and creative challenges of live production while emerging as a leader and mentor in the control room...
12/11/2026
Gracenote, Nielsen's content intelligence business, has released its fifth a...
12/11/2026
RTL Deutschland will bring the NHL to free-to-air TV in Germany starting Nov. 30...
12/11/2026
Clear-Com supported On Air 2026, a 24-hour student-led broadcast connecting 45 u...
Nanotech strategy shows promise for treating autoimmune disease In a Scripps Research study, a nanoparticle treatment cured' mice that had a genetic arthritis condition.
