To eliminate the problems associated with the use of extraneous adjuvants we have designed a Self-Assembling Protein Nanoparticle (SAPN) containing epitopes from the Plasmodium falciparum circumsporozoite protein (PfCSP) (designated FMP014) and portions of the TLR5 agonist flagellin (designated FMP014) as an intrinsic adjuvant. By combining different molar ratios of FMP014 to FMP014 monomers before self-assembly, we generated multiple nanoparticles and investigated their biophysical characteristics, immunogenicity and protective efficacy. Immunization with the construct formulated with the ratio 58:2 of FMP014 to FMP014 had the highest protective efficacy against a challenge with a transgenic P. berghei sporozoite expressing PfCSP. Increasing the proportion of flagellin per particle resulted in an inverse relationship with levels of both antibody titers and protection. The cytokine profiles of the various immunization groups were evaluated and quantitative amounts of the cytokines IL-2, IFN-γ, IL-12/p70 (Th1); IL4, IL5 (Th2); TNF-α, IL1β, IL-6, KC/GRO (pro-inflammatory), and IL-10 (immunomodulatory) were measured. The relationship of the cytokines to each other revealed a strong immunomodulatory effect depending on the proportion of flagellin in the construct. Our results demonstrate that SAPNs with flagellin may be a promising strategy for the development and delivery of a safe vaccine for infectious diseases.
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http://dx.doi.org/10.1016/j.vaccine.2017.12.001 | DOI Listing |
Medicine (Baltimore)
January 2025
Opthalmology, Chongqing Hechuan District People's Hospital, Chongqing, China.
Background: Bushen-Huoxue-Mingmu-Formula (MMF) has achieved definite clinical efficacy. However, its mechanism is still unclear.
Objective: Investigating the molecular mechanism of MMF to protect retinal ganglion cells (RGCs).
Medicine (Baltimore)
January 2025
Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, P.R. China.
The presence of specific genetic mutations in patients with glioblastoma multiforme (GBM) is associated with improved survival outcomes. Disruption of the DNA damage response (DDR) pathway in tumor cells enhances the effectiveness of radiotherapy drugs, while increased mutational burden following tumor cell damage also facilitates the efficacy of immunotherapy. The ATRX gene, located on chromosome X, plays a crucial role in DDR.
View Article and Find Full Text PDFAm J Ther
January 2025
Faculty of Medicine, "Transilvania" University, Brasov, Romania; and.
Background: Dementia leads to cognitive decline affecting memory, thinking, and behavior. Current pharmaceutical treatments are symptomatic, with limited efficacy and significant drawbacks. Ginkgo biloba extract (EGb761) is being explored as an adjuvant therapy for dementia because of its potential neuroprotective effects.
View Article and Find Full Text PDFChem Biodivers
January 2025
National Center for Energy Sciences and Nuclear Techniques: Centre National de l'Energie des Sciences et des Techniques Nucleaires, Biology and Medical Research Unit, Rabat 10001, Morocco, 10001, Rabat, MOROCCO.
Infectious diseases remain a major global health concern. Cistus ladanifer, a plant commonly employed in Moroccan traditional medicine, has been identified as a potential antiviral candidate. This study aimed to evaluate the antiviral activity of C.
View Article and Find Full Text PDFAim: To evaluate the efficacy of sesame oil-pulling in periodontitis with/without Type2 Diabetes Mellitus (T2DM), compared to Chlorhexidine, for its oral and systemic health benefits.
Material And Methods: Total of 120 periodontitis patients, without (Group A; 60)/with (Group B; 60) T2DM, underwent control (chlorhexidine 0.12%; Group A1 & B1) and test (sesame oil-pulling; Group A2 & B2) interventions.
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