The induction of protective humoral immune responses against sporozoite surface proteins of the human parasite Plasmodium falciparum (Pf) is a prime goal in the development of a preerythrocytic malaria vaccine. The most promising antibody target is circumsporozoite protein (CSP). Although PfCSP induces strong humoral immune responses upon vaccination, vaccine efficacy is overall limited and not durable. Here, we review recent efforts to gain a better molecular and cellular understanding of anti-PfCSP B cell responses in humans and discuss ways to overcome limitations in the induction of stable titers of high-affinity antibodies that might help to increase vaccine efficacy and promote long-lived protection.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8754000 | PMC |
http://dx.doi.org/10.1084/jem.20201313 | DOI Listing |
Int J Mol Sci
December 2024
Department of Microbiology and Parasitology, Pharmacy Faculty at Complutense University of Madrid, 28040 Madrid, Spain.
Extracellular vesicles (EVs) from can elicit immune responses, positioning them as promising acellular vaccine candidates. We characterized EVs from an avirulent cell wall mutant (Δ) and evaluated their protective potential against invasive candidiasis. EVs from the yeast (YEVs) and hyphal (HEVs) forms of the SC5314 wild-type strain were also tested, yielding high survival rates with SC5314 YEV (91%) and YEV immunization (64%).
View Article and Find Full Text PDFSci Rep
January 2025
Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
Acinetobacter baumannii, an opportunistic bacterium prevalent in various environment, is a significant cause of nosocomial infections in ICUs. As the causative agent of pneumonia, septicemia, and meningitis, A. baumannii typically exhibits multidrug resistance and is associated with poor prognosis, thus led to a challenge for researchers in developing new treatment and prevention methods.
View Article and Find Full Text PDFVaccine
January 2025
Department of Microbiology and Immunology, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea; Cancer Research Institute, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea; Seoul National University Medical Research Center (SNUMRC), Seoul 03080, Republic of Korea; Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea; Liver Research Institute, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea; BK21 FOUR Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080, Republic of Korea. Electronic address:
Tuberculosis (TB) remains a significant global health issue due to the limited efficacy of the Bacillus Calmette-Guérin (BCG) vaccine, highlighting the need for the development of an improved TB vaccine. In this study, we created a novel TB subunit vaccine consisting of TB-secreted chorismate mutase (TBCM) (Rv1885c) and a hepatitis B virus (HBV)-derived peptide (Poly6), which elicits Type I interferon responses, both with and without an alum adjuvant. We evaluated the immunogenicity, protective efficacy, and therapeutic efficacy of this vaccine candidate in an in vivo mouse model.
View Article and Find Full Text PDFPoult Sci
January 2025
College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; Heilongjiang Provincial Key Laboratory of Pathogenic Mechanism for Animal Disease and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China. Electronic address:
In this study, phthalate inulin nanoparticles (PINs) were chemically modified and characterized. The internalization of PINs into the probiotic E. faecalis, which delivering Fiber2 protein of fowl adenovirus serotype 4 (FAdV-4), was investigated.
View Article and Find Full Text PDFImmunology
January 2025
National Food Institute, Technical University of Denmark, Kgs. Lyngby, Denmark.
Insights into the underlying immunological mechanisms of prophylactic sublingual immunotherapy (SLIT) may support the development of new strategies for improved prevention and treatment of food allergy. Here, we investigated the humoral, regulatory and sublingual tissue immune response to prophylactic SLIT administration of a single purified peanut allergen in Brown Norway (BN) rats. BN rats received daily sublingual administration of peanut allergen Ara h 6 for three weeks.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!