The 3D structural analysis of 62 peptides derived from highly pathogenic malaria parasite proteins involved in host cell invasion led to finding a striking association between particular β-turn types located in the N-terminal peripheral flanking residue region (preceding the polyproline II left-handed structures fitting into the HLA-DRβ allele family) and modified mmune protection-inducing protein structure induced long-lasting protective immunity. This is the first time association between two different secondary structures associated with a specific immunological function has been described: full, long-lasting protective immunity.
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http://dx.doi.org/10.3389/fchem.2018.00106 | DOI Listing |
NPJ Vaccines
December 2024
Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
Eilat (EILV)/chikungunya virus (CHIKV), an insect-based chimeric alphavirus was previously reported to protect mice months after a single dose vaccination. The underlying mechanisms of host protection are not clearly defined. Here, we assessed the capacity of EILV/CHIKV to induce quick and durable protection in cynomolgus macaques.
View Article and Find Full Text PDFAllergy Asthma Clin Immunol
December 2024
Department of Pediatrics, Division of Allergy, Dalhousie University, IWK Health Centre, Halifax, NS, Canada.
The body has a collection of physical barriers to prevent infection, but once these are overcome, we rely on our immune systems to protect us against a wide variety of infections. The complex mechanisms through which this is achieved are grouped into two lines of defense called the "innate" and "adaptive" immune systems. The innate immune system provides a rapid and tailored response to infection or injury often associated with inflammation.
View Article and Find Full Text PDFSmall
December 2024
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
Electrolyte additive engineering enables the creation of long-lasting interfacial layers that protect electrodes, thus extending the lifetime of high-energy lithium-ion batteries employing Ni-rich Li[NiCoMn]O (NCM) cathodes. However, batteries face various limitations if existing additives are employed alone without an appropriate combination. Herein, the study reports the development of a molecular-engineered salt-type multifunctional additive, lithium bis(phosphorodifluoridate) triethylammonium ethenesulfonate (LiPENS), that leverages the different functionalities of phosphorous, nitrogen, and sulfur-embedded motifs, as well as the classical additive vinylene carbonate (VC), to construct protective interfacial layers.
View Article and Find Full Text PDFParasit Vectors
December 2024
Malaria and Neglected Tropical Diseases Research Division, Armauer Hansen Research Institute, Addis Ababa, Ethiopia.
Background: Ethiopia continues to grapple with a persistent malaria burden, characterized by ongoing transmission and recurrent outbreaks. Human behavior influences both malaria exposure and the effectiveness of vector interventions, complicating malaria control efforts. Implementing tailored strategies that account for the complex interplay between human activities and vector behavior remains a challenge in both high- and low-transmission areas in Ethiopia, particularly for vulnerable highland populations and temporary labor migrants, due to lack of data.
View Article and Find Full Text PDFCurr Res Parasitol Vector Borne Dis
October 2024
Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS, Université Bourgogne Franche-Comté, 9 Avenue Alain Savary, 21078, Dijon, France.
Various parasites alter their intermediate host's phenotype in ways that increase parasite transmission to definitive hosts. To what extent infected intermediate hosts can recover from such "manipulation" is poorly documented, thus limiting our understanding of its proximate and ultimate causes. Here, we address the reversibility of several phenotypic alterations induced by the acanthocephalan , a trophically-transmitted bird parasite, in its amphipod intermediate host.
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