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Adoptive transfer of tumor-infiltrating lymphocytes may be less effective in patients with pretreated metastatic melanoma

Patients with relapsed metastatic melanoma who received prior anti-PD-1 therapies had a lower response rate to adoptive cell transfer of tumor-infiltrating lymphocytes (ACT-TIL). ACT-TIL was less effective in these patients compared to those who had never received anti-PD-1 therapy. The study found that the objective response rate and ...

SourceAmerican Association for Cancer Research·JournalClinical Cancer Research·DateAug 19, 2021

Berkeley Lab science snapshots

Researchers at Berkeley Lab have made significant breakthroughs in developing a highly effective COVID-19 antibody therapy and an efficient thermoelectric system that can convert waste heat to electricity. The new antibody, S309, has been shown to neutralize all known SARS-CoV-2 strains and may be more difficult for new mutants to escape.

International project provides definitive data on how key cancer drugs work

Researchers analyzed patient specimens and clinical trial data from thousands of patients to assess the importance of immune cell molecules called Fc gamma receptors (FCGRs) in the therapeutic efficacy of two antibody drugs. High levels of FCGR2B on tumor cells were found to prevent rituximab efficacy, while obinutuzumab was not impact...

SourceUniversity of Southampton·JournalBlood Advances·TypeData/statistical analysis·DateAug 2, 2021

Preclinical research reveals that new IgM antibodies administered intranasally to fight COVID-19 more potent than commonly used ones

A new engineered IgM antibody therapy has been found to be significantly more potent than standard IgG antibodies at neutralizing the COVID-19 virus in animal models. The therapy, IGM-6268, demonstrated increased potency against emerging variants of concern and variants of interest.

CHOP-led research study identifies key target in treatment-resistant hemophilia A

A CHOP-led research study found that B cell activating factor (BAFF) levels are elevated in patients resistant to coagulation protein therapy, suggesting a potential target for new treatments. Anti-BAFF therapies combined with immune tolerance therapies may tame the immune response in some patients with severe hemophilia A.

SourceChildren's Hospital of Philadelphia·JournalJournal of Clinical Investigation·DateApr 15, 2021

Antibody test developed for COVID-19 that is sensitive, specific and scalable

Researchers at the University of Texas at Austin have developed an antibody test for COVID-19 that is highly accurate and can handle a large number of donor samples. The test measures antibodies against specific proteins on the virus's spike protein and has been shown to be comparable to the gold standard of antibody testing.

SourceUniversity of Texas at Austin·JournalJournal of Clinical Investigation·DateSep 11, 2020

HIV antibody therapy is associated with enhanced immune responses in infected individuals

Researchers have found that combining two anti-HIV antibodies with ART can suppress the virus and boost T cell responses, offering new hope for HIV treatment. The study suggests a potential interaction between humoral immunity and cell-mediated immunity, which could lead to improved control of the virus.

It's Fab! A hidden touch of antibody

Antibodies recognize viruses and cancer cells via Fab arms, but now researchers know the Fab portion also directly binds to Fc receptors. This discovery opens up a new strategy for developing therapeutic antibodies with enhanced binding properties.

SourceNagoya City University·JournalScientific Reports·DateAug 21, 2019

Breath of fresh air in vasculitis research

Researchers have identified an association between a MUC5B gene variant and systemic vasculitis, a lung disease prevalent in the Japanese population. The study found that patients with antineutrophil cytoplasmic antibody-associated vasculitis are more likely to have ILD if they carry this specific genetic variation.

SourceUniversity of Tsukuba·JournalAnnals of the Rheumatic Diseases·DateMar 12, 2019

Combination HIV antibody infusions safely maintain viral suppression in select individuals

Researchers found that a combination of multiple antibodies targeting distinct regions of HIV can suppress the virus and prevent resistance. In a pilot clinical trial, participants who received infusions of broadly neutralizing antibodies maintained viral suppression for over 15 weeks after stopping antiretroviral therapy.

Scientists found means to inhibit capillary leakage in sepsis

Researchers at the University of Helsinki have identified a monoclonal antibody that inhibits capillary leakage in sepsis. The antibody targets β1-integrin, a key molecule in endothelial cells, and improves junctions between endothelial cells, decreasing vascular leakage and protecting against sepsis-induced heart failure.

SourceUniversity of Helsinki·JournalProceedings of the National Academy of Sciences·DateJun 25, 2018

Antibody 'cocktail' can prevent Zika infection but is not effective for treatment of fetuses

A collaborative study led by the University of Miami Miller School of Medicine found that a monoclonal antibody cocktail therapy was effective in clearing the virus from pregnant women's blood but failed to prevent fetal transmission and treat infected fetuses. Researchers are now working on engineering antibodies to target the fetus.

SourceUniversity of Miami Miller School of Medicine·JournalNature Communications·DateApr 25, 2018

Wistar scientists develop novel immunotherapy technology for prostate cancer

Researchers at The Wistar Institute have developed a gene-based delivery system that instructs the body to generate therapeutic antibodies against cancer cells. This technology has shown promising results in treating prostate cancer by binding to cancer cells and recruiting immune cells, resulting in tumor shrinkage and improved survival.

SourceThe Wistar Institute·JournalCancer Immunology Immunotherapy·DateAug 17, 2017

Antibody that neutralizes sMIC boosts CTLA4 immunotherapy response and reduces colitis

Researchers found that co-administering an antibody that neutralizes tumor-released soluble MHC I chain-related molecule (sMIC) improves anti-CTLA4 therapy effectiveness and reduces treatment-related colitis. The combination therapy dramatically improves CTLA4 therapy response and avoids colitis, suggesting a new powerful immunotherapy...

SourceMedical University of South Carolina·JournalScience Advances·DateMay 17, 2017

Keeping tabs on tau to track neurodegenerative disorder progression

Researchers have discovered an antibody that can detect tau in the serum of patients with tauopathies, a neurodegenerative disorder characterized by toxic protein clumps. The antibody, HJ8.5, has shown promise in increasing tau levels in human patients and mouse models, potentially paving the way for new treatments.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience Translational Medicine·DateApr 19, 2017