نتایج جستجو برای: host pathogen interaction

تعداد نتایج: 806653  

Journal: :Chest 2002
Stephen Lory Jeffrey K Ichikawa

R espiratory infections by the opportunistic pathogen Pseudomonas aeruginosa in immunocompromised patients or in patients with cystic fibrosis (CF) are the result of unique conditions that allow this Gram-negative bacterium to colonize the lung. This interaction between the pathogen and host leads to responses in both cells that ultimately lead to severe lung degeneration in individuals with CF...

2015
Gayatri Ramakrishnan Narayanaswamy Srinivasan Ponnan Padmapriya Vasant Natarajan

Plasmodium falciparum, a causative agent of malaria, is a well-characterized obligate intracellular parasite known for its ability to remodel host cells, particularly erythrocytes, to successfully persist in the host environment. However, the current levels of understanding from the laboratory experiments on the host-parasite interactions and the strategies pursued by the parasite to remodel ho...

2017
Yury E. Garc'ia Marcos A. Capistr'an

In this paper, we carry out a computational study using the spectral decomposition of the fluctuations of a two-pathogen epidemic model around its deterministic attractor, i.e., steady state or limit cycle, to examine the role of partial vaccination and between-host pathogen interaction on early pathogen replacement during seasonal epidemics of influenza and respiratory syncytial virus.

Journal: :Annual Review of Biomedical Engineering 2021

The host-to-host transmission of respiratory infectious diseases is fundamentally enabled by the interaction pathogens with a variety fluids (gas or liquid) that shape pathogen encapsulation and emission, transport persistence in environment, new host invasion infection. Deciphering mechanisms fluid properties govern promote these steps will enable better risk assessment infection control strat...

2015
Leila Masri Antoine Branca Anna E. Sheppard Andrei Papkou David Laehnemann Patrick S. Guenther Swantje Prahl Manja Saebelfeld Jacqueline Hollensteiner Heiko Liesegang Elzbieta Brzuszkiewicz Rolf Daniel Nicolaas K. Michiels Rebecca D. Schulte Joachim Kurtz Philip Rosenstiel Arndt Telschow Erich Bornberg-Bauer Hinrich Schulenburg David S. Schneider

Reciprocal coevolution between host and pathogen is widely seen as a major driver of evolution and biological innovation. Yet, to date, the underlying genetic mechanisms and associated trait functions that are unique to rapid coevolutionary change are generally unknown. We here combined experimental evolution of the bacterial biocontrol agent Bacillus thuringiensis and its nematode host Caenorh...

2017
Marinela Contreras Pilar Alberdi Lourdes Mateos-Hernández Isabel G. Fernández de Mera Ana L. García-Pérez Marie Vancová Margarita Villar Nieves Ayllón Alejandro Cabezas-Cruz James J. Valdés Snorre Stuen Christian Gortazar José de la Fuente

Anaplasma phagocytophilum transmembrane and surface proteins play a role during infection and multiplication in host neutrophils and tick vector cells. Recently, A. phagocytophilum Major surface protein 4 (MSP4) and Heat shock protein 70 (HSP70) were shown to be localized on the bacterial membrane, with a possible role during pathogen infection in ticks. In this study, we hypothesized that A. p...

2013
Chiara Poletto Sandro Meloni Vittoria Colizza Yamir Moreno Alessandro Vespignani

Interactions among multiple infectious agents are increasingly recognized as a fundamental issue in the understanding of key questions in public health regarding pathogen emergence, maintenance, and evolution. The full description of host-multipathogen systems is, however, challenged by the multiplicity of factors affecting the interaction dynamics and the resulting competition that may occur a...

Journal: :Journal of evolutionary biology 2007
A-L Laine

Understanding processes maintaining variation in pathogen life-history stages affecting infectivity and reproduction is a key challenge in evolutionary ecology. Models of host-parasite coevolution are based on the assumption that genetic variation for host-parasite interactions is a significant cause of variation in infection, and that variation in environmental conditions does not overwhelm th...

Journal: :Bioinformation 2008
Vasunun Chumchua Natapol Pornputtapong Chinae Thammarongtham Duangdeun Meksuriyen

Alpha (alpha)-enolase (e), a glycolytic enzyme, has an alternative role as a surface receptor of several bacteria mediating plasminogen (pg) binding. It is also recognized as a virulence factor of some pathogenic bacteria facilitating plasminogen activation and host cell invasion. A mycoplasmal alpha-enolase is also a plasminogen binding protein. Molecular interactions of enolase from Mycoplasm...

2013
Sarah Veloso Nogueira Brian T. Backstedt Alexis A. Smith Jin-Hong Qin Elsio A. Wunder Albert Ko Utpal Pal

Leptospira interrogans is the agent for leptospirosis, an important zoonosis in humans and animals across the globe. Surface proteins of invading pathogens, such as L. interrogans, are thought to be responsible for successful microbial persistence in vivo via interaction with specific host components. In particular, a number of invasive infectious agents exploit host proteolytic pathways, such ...

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