Immune Response News and Research

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Boosters slow antibody waning but hit a ceiling: Long-term COVID study reveals limits of immunity

The study tracks the long-term kinetics of antibody responses to SARS-CoV-2 after vaccination and infections in New York healthcare workers from 2020 to 2023. It reveals that antibody waning is slower after booster shots, but there's an upper limit to antibody levels, which gradually lowers with repeated SARS-CoV-2 exposures and vaccinations.

31 Aug 2023

Dectin-1 stimulation promotes pro-inflammatory response in HIV-positive individuals

A new research paper was published on the cover of Aging (listed by MEDLINE/PubMed as "Aging (Albany NY)" and "Aging-US" by Web of Science) Volume 15, Issue 16, entitled, "Dectin-1 stimulation promotes a distinct inflammatory signature in the setting of HIV-infection and aging."

31 Aug 2023

Fourth COVID-19 booster supercharges antibody defense in older adults, study says

The study finds that the fourth dose of the COVID-19 mRNA vaccine significantly boosts neutralizing antibody levels in the elderly, providing enhanced protection against new SARS-CoV-2 variants like Omicron. This supports the efficacy of booster shots for older populations in combating COVID-19.

31 Aug 2023

New omicron variants can reinfect people who were infected with earlier variants

The omicron variants of the SARS-CoV-2 virus, which have rapidly spread around the world over the past year, latch onto our cells more tightly, invade them more efficiently, and elude many of the antibodies induced by previous infections and vaccines.

30 Aug 2023

Gene variant protects against Alzheimer's and Parkinson's diseases

About one in every five people carries a version of a gene that, although largely unsung, appears to confer protection against both Alzheimer's disease and Parkinson's disease, Stanford Medicine investigators and their colleagues have learned.

30 Aug 2023

Unlocking tumor immune evasion: IL1RL1+ Treg cells and CAFs collaborate for immunotherapy resistance

Researchers demonstrated that the crosstalk between IL1RL1+ regulatory T-cells (Treg) and cancer-associated fibroblasts (CAFs) drives the tissue repairing.

30 Aug 2023

Light-driven bacteria could be used to target and kill cancer cells

Targeting malignant tumors with high precision is challenging for biomedical researchers. However, this scenario is likely to witness a paradigm shift in the near future, through the use of specially engineered bacteria, that can eliminate malignant cells efficiently.

29 Aug 2023

Novavax's protein-based COVID vaccine induces broad functional immune response against XBB subvariants, data shows

Novavax, Inc., a global company advancing protein-based vaccines with its novel Matrix-M™ adjuvant, today announced that its updated protein-based XBB COVID vaccine candidate induced neutralizing antibody responses to the EG.5.1 and XBB.1.16.6 subvariants in small animal and non-human primate studies.

25 Aug 2023

New research sheds light on role of KRAS mutations in pancreatic cancer

Researchers at The University of Texas MD Anderson Cancer Center have uncovered a functional role for KRAS mutations in pancreatic cancer and rapidly translated these findings into a novel therapeutic approach combining a KRAS G12D inhibitor with immune checkpoint inhibitors for early- and late-stage KRAS G12D-mutant pancreatic cancer.

24 Aug 2023

Genetics and environment influence immune responses to SARS-CoV-2

During the COVID-19 pandemic, the clinical spectrum observed among people infected with SARS-CoV-2 ranged from asymptomatic carriage to death.

24 Aug 2023

Study shows how cancer can selfishly hijack a helpful immune pathway to spread

A study led by researchers at Memorial Sloan Kettering Cancer Center (MSK) and Weill Cornell Medicine discovered a new relationship between cancer cells and the immune system, and shows how cancer can selfishly hijack a normally helpful immune pathway.

23 Aug 2023

41% of people with post-viral syndrome had evidence of SARS-CoV-2 exposure

Millions of Americans were exposed to SARS-CoV-2, the virus that causes COVID-19, early in the pandemic but could not get diagnosed due to testing limitations.

23 Aug 2023

Artificial intelligence and polyclonal antibody sequencing redefine the future of antibody discovery

In this interview, News-Medical had the opportunity to speak with Dr. Xiaobing Han, Principal Scientist for Antibody Discovery at Rapid Novor.

From Rapid Novor Inc 23 Aug 2023

How does COVID-19 influence your gut microbiota?

Researchers analyzed the fecal microbiota composition in COVID-19 patients in comparison to non-COVID-19 controls.

23 Aug 2023

Current and future strategies for vaccinating against invasive pneumococcal disease

Researchers reviewed the immune mechanisms employed by existing vaccines for invasive pneumococcal disease.

23 Aug 2023

Gut-first theory of Parkinson's disease gains traction

Ask any neurologist: Parkinson's disease is a brain disorder. The conspicuous symptoms of Parkinson's disease - uncontrollable tremors, slowed down motions, and the feeling that one's feet are stuck to the ground - all stem from the loss of neurons in a region of the brain that helps control movement.

22 Aug 2023