Health and Me

Rachel V Thomas

New HIV Vaccine Produces Powerful Virus-Fighting Antibodies; Human Trials Begin

A team of US scientists has developed a new <span>HIV vaccine</span> that trains the immune system to overcome the virus's defenses, producing the strongest HIV-fighting antibody response ever reported in non-human primates.

The vaccine, developed by researchers from La Jolla Institute for Immunology (LJI), Scripps Research, and IAVI, is the first to generate a high number of broadly neutralizing antibodies against HIV in primates. Human trials have now begun.

“This feels like a huge success,” said LJI Professor and Chief Scientific Officer Shane Crotty.

“We constructed a successful vaccine from the ground up, which required a deep understanding of the immune system.” The findings are published in the journal Nature.

The vaccine is designed to guide the body's B cells—the immune cells responsible for making antibodies. Normally, B cells begin in a naïve state and gradually mature after encountering a virus. As they mature, they continuously refine the antibodies they produce, improving their ability to recognize and neutralize the virus.

Instead of waiting for this process to happen naturally, the new vaccine directs B cells through each stage of development.

<strong>Also read: </strong><a href="https://www.healthandme.com/health-news/us-hospital-performs-worlds-first-hiv-to-hiv-lung-transplant-offering-fresh-hope-for-hiv-patients-article-154723599" data-type="tilCustomLink">US Hospital Performs World's First HIV-to-HIV Lung Transplant, Offering Fresh Hope for HIV Patients</a>

<ul><li>A priming vaccine that activates naïve B cells.</li><li>A series of booster shots that guide these cells toward producing broadly neutralizing antibodies capable of recognizing many HIV strains.</li></ul>

“This series of vaccinations will guide, or ‘walk’, a B cell from its naive state to its broadly neutralizing state,” said LJI Instructor Patrick Madden.

The scientists called this strategy germline targeting because it targets B cells before they begin their normal maturation process.

<h2>Strong Results in Animal Studies</h2>

To evaluate the vaccine, researchers tested it in rhesus macaques. The results showed:

<ul><li>Around 44% of vaccinated animals produced broadly neutralizing antibodies against HIV.</li><li>The antibody levels were unusually high compared with previous vaccine studies.</li><li>The antibodies closely resembled those found in the small number of people who naturally develop broad protection against HIV.</li></ul>

“We succeeded in taking ultra-rare antibody responses and turning them into common responses by the end of the vaccination process,” Crotty said.

The researchers did not test whether the antibodies could completely prevent HIV infection. However, finding these antibodies circulating in the bloodstream suggests they could potentially recognize and block the virus.

<strong>Read More: </strong><a href="https://www.healthandme.com/health-wellness/hiv-no-longer-barrier-to-organ-transplants-say-delhi-doctors-after-successful-kidney-surgery-article-153919508" data-type="tilCustomLink">HIV No Longer Barrier To Organ Transplants, Say Delhi Doctors After Successful Kidney Surgery</a>

The researchers are now working to improve the vaccine further, including refining the booster schedule to increase the number of individuals who develop broadly neutralizing antibodies.

“It was incredible to get those results, but of course we'd like to see a response in 100 percent of the animals,” Madden said.

According to the researchers, the antibodies produced in the vaccinated animals closely matched the broadly neutralizing antibodies seen in the rare people who naturally develop them.

“We believe this vaccine approach is even more likely to succeed in humans, because of the immunogenetics,” Crotty said.

<h2><span rel="noindex">Global Burden Of HIV</span> </h2>

Before You Take Another Paracetamol, Watch This | Doctors Explain the Hidden Risk

According to the World Health Organization, globally, 40.8 million [37.0–45.6 million] people were living with HIV at the end of 2024. Out of these, 1.3 million individuals newly acquired the virus, and 630,000 people died from AIDS-related illnesses.

To date, there is no vaccine available that will prevent HIV infection. Developing an HIV vaccine has remained one of the biggest challenges in medicine because the virus is exceptionally good at evading the immune system.

“The worldwide diversity of HIV mutations is extraordinary. Even the diversity within one individual person living with HIV is dramatic,” Madden said.

Health Conditions A-Z

health

new-hiv-vaccine-produces-powerful-virus-fighting-antibodies-human-trials-begin

HIV Vaccine

HIV vaccine trial

HIV- Human Immunodeficiency Disease

HIV antibodies

Experimental HIV vaccine

global burden of hiv

nhs-to-roll-out-two-gamechanger-tests-for-faster-endometriosis-diagnosis-know-how-they-work

NHS To Roll Out Two 'Gamechanger' Tests for Faster Endometriosis Diagnosis: Know How They Work

beyond-weight-loss-scientists-discover-how-exercise-can-help-reverse-muscle-aging

Beyond Weight Loss: Scientists Discover How Exercise Can Help Reverse Muscle Aging

Health News

8 Sit-Up Variations to Strengthen Your Core and Build Stability

Benefits Of Ayurvedic Health Supplement Ashwagandha

9 Anti-Inflammatory Breakfast Options You Should Try

5 Foods You Should Avoid For PCOS, Says Gynecologist

Love Sitting With Your Legs Crossed? Here’s You Should Avoid It

6 Daily Foods That Are Secretly Increasing Your Calories

9 Brain Boosters You Should Do Everyday

Hip Exercises That Will Keep You Flexible As You Age

9 Leg Exercises Office Workers’ Should Do At Home

Benefits of Having Herbal Tea Every Morning

9 Daily Habits That Boost Your Brain Power

Lower-Body Exercises That Are Game-Changers

How Drinking Apple Cider Vinegar Helps You

Aging Myths You Should Never Believe

Superfoods That Support Your Gut Health

What Happens To Your Body When You Eat Instant Noodles Every Day?

Health Issues Premature Babies Often Face

Exercises Office Workers Should Do For Their Heart Health

Reasons Why You Should Add Raw Turmeric To Your Diet

Benefits Of Drinking Milk At Night: Why You Should Do It

Food That Provides Vitamin B12 Naturally In Your Diet

Surprising Health Benefits Of Fenugreek Seeds

9 Superfoods You Should Eat For Your Brain Health

What Does Mental Health Support Look Like At Work?

Long Stretches You Should Do To Unwind From Your Day

Colon Cancer In Young Adults: Early Symptoms You Should Know

Health Benefits Of Eating Dry Fruits Everyday

Are You At Risk For Fried Rice Syndrome?

These Tests Reveal How Well You Are Aging

Lower-Back Exercises You Should Do After A Long-Day's Work

Children’s Diet – What Kids Need To Eat For Immunity Building

Common Diabetes Myths That Could Hurt Your Health

Love Spicy Food? Here’s How It Affects Your Health

Superfood List: Veggies And Fruits You Must Have For Immunity

Foods People With IBS Should Avoid

Exercises To Improve Digestion

Easy Work Lunches You Can Make In The Morning

Hunger Vs Craving: Difference Explained In 60 seconds

These Things Can Cause Your Heart To Age Faster

High Carb Foods That Are Actually Healthy

A team of US scientists has developed a new HIV vaccine that trains the immune system to overcome the virus's defenses, producing the strongest HIV-fighting antibody response ever reported in non-human primates.The vaccine, developed by researchers from La Jolla Institute for Immunology (LJI), Scripps Research, and IAVI, is the first to generate a high number of broadly neutralizing antibodies against HIV in primates. Human trials have now begun.“This feels like a huge success,” said LJI Professor and Chief Scientific Officer Shane Crotty.“We constructed a successful vaccine from the ground up, which required a deep understanding of the immune system.” The findings are published in the journal Nature.How Does The New Vaccine Work?The vaccine is designed to guide the body's B cells—the immune cells responsible for making antibodies. Normally, B cells begin in a naïve state and gradually mature after encountering a virus. As they mature, they continuously refine the antibodies they produce, improving their ability to recognize and neutralize the virus.Instead of waiting for this process to happen naturally, the new vaccine directs B cells through each stage of development.Also read: US Hospital Performs World's First HIV-to-HIV Lung Transplant, Offering Fresh Hope for HIV PatientsThe approach includes:A priming vaccine that activates naïve B cells.A series of booster shots that guide these cells toward producing broadly neutralizing antibodies capable of recognizing many HIV strains.“This series of vaccinations will guide, or ‘walk’, a B cell from its naive state to its broadly neutralizing state,” said LJI Instructor Patrick Madden.The scientists called this strategy germline targeting because it targets B cells before they begin their normal maturation process.Strong Results in Animal StudiesTo evaluate the vaccine, researchers tested it in rhesus macaques. The results showed:Around 44% of vaccinated animals produced broadly neutralizing antibodies against HIV.The antibody levels were unusually high compared with previous vaccine studies.The antibodies closely resembled those found in the small number of people who naturally develop broad protection against HIV.“We succeeded in taking ultra-rare antibody responses and turning them into common responses by the end of the vaccination process,” Crotty said.The researchers did not test whether the antibodies could completely prevent HIV infection. However, finding these antibodies circulating in the bloodstream suggests they could potentially recognize and block the virus.Human Trials UnderwayRead More: HIV No Longer Barrier To Organ Transplants, Say Delhi Doctors After Successful Kidney SurgeryThe researchers are now working to improve the vaccine further, including refining the booster schedule to increase the number of individuals who develop broadly neutralizing antibodies.“It was incredible to get those results, but of course we'd like to see a response in 100 percent of the animals,” Madden said.According to the researchers, the antibodies produced in the vaccinated animals closely matched the broadly neutralizing antibodies seen in the rare people who naturally develop them.“We believe this vaccine approach is even more likely to succeed in humans, because of the immunogenetics,” Crotty said.Global Burden Of HIV       According to the World Health Organization, globally, 40.8 million [37.0–45.6 million] people were living with HIV at the end of 2024. Out of these, 1.3 million individuals newly acquired the virus, and 630,000 people died from AIDS-related illnesses.To date, there is no vaccine available that will prevent HIV infection. Developing an HIV vaccine has remained one of the biggest challenges in medicine because the virus is exceptionally good at evading the immune system.“The worldwide diversity of HIV mutations is extraordinary. Even the diversity within one individual person living with HIV is dramatic,” Madden said.

new hiv vaccine produces powerful virus-fighting antibodies; human trials begin

About Us

Contact Us

Terms & Conditions

Privacy Policy

Company

Health and Me is a premium website with content written and curated to function as a handbook for all Health concerns.

New HIV Vaccine Produces Powerful Virus-Fighting Antibodies; Human Trials Begin

NHS To Roll Out Two 'Gamechanger' Tests for Faster Endometriosis Diagnosis: Know How They Work

FSSAI Intensifies Crackdown Over Misleading Labels, Issues Notices To Popular Paneer & Chocolate Spread Brands

US Cyclospora Parasite Outbreak Nears 900 Cases: Experts Say Handwashing Key to Prevention

Health Conditions A-Z

New HIV Vaccine Produces Powerful Virus-Fighting Antibodies; Human Trials Begin

NHS To Roll Out Two 'Gamechanger' Tests for Faster Endometriosis Diagnosis: Know How They Work

Beyond Weight Loss: Scientists Discover How Exercise Can Help Reverse Muscle Aging