Results 71 to 80 of about 1,667,008 (303)

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

High prevalence of the hotspot complement factor I p.Ile357Met pathogenic variant in Tunisian atypical hemolytic uremic syndrome patients: report of three new cases and review of the literature

Frontiers in Immunology
IntroductionAtypical Hemolytic Uremic Syndrome (aHUS) is the prototype of renal diseases secondary to dysregulation of the alternative complement pathway.
Asma Tajouri, Asma Tajouri, Asma Tajouri, Imen Ayadi, Imen Ayadi, Rimeh BenBrahim, Rimeh BenBrahim, Ikram Mami, Abir Boussetta, Hend Jlajla, Hend Jlajla, Yousr Zerzeri, Haifa Arbi Sassi, Jamila Ben Sassi, Hela Sahli, Lilia Laadhar, Lilia Laadhar, Tahar Gargah, Mohamed Karim Zouaghi, Maryam Kallel Sellami, Maryam Kallel Sellami   +20 more
doaj   +1 more source

The arogenate dehydratase ADT2 is essential for seed development in Arabidopsis [PDF]

, 2018
Phenylalanine (Phe) biosynthesis in plants is a key process, as Phe serves as precursor of proteins and phenylpropanoids. The prephenate pathway connects chorismate, final product of the shikimate pathway, with the biosynthesis of Phe and Tyr.
Canovas-Ramos, Francisco Miguel, De la Torre, Fernando, El-Azaz Ciudad, Jorge, Ávila, Concepción   +3 more
core  

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

The alternative complement pathway revisited [PDF]

Journal of Cellular and Molecular Medicine, 2008
Introduction Methods to study and modify the alternative pathway Influence of AP amplification on the effect of specific activation of the other initial pathways Properdin Influence of AP in deficiency states Complement in sepsis Concluding remarks AbstractAlternative pathway amplification plays a major role for the final effect of initial specific ...
Harboe, Morten, Mollnes, Tom Eirik
openaire   +2 more sources

Differential modulation of SARS-CoV-2 infection by complement factor H and properdin

Frontiers in Immunology
IntroductionAn unbalanced immune response and excessive inflammation are the major hallmarks of severe SARS-CoV-2 infection, which can result in multiorgan failure and death. The dysregulation of the complement system has been shown in various studies as
Uday Kishore, Uday Kishore, Praveen M. Varghese, Chandan Kumar, Susan Idicula-Thomas, Martin Mayora Neto, Anthony G. Tsolaki, Pretty Ponnachan, Pretty Ponnachan, Khaled Masmoudi, Basel Al-Ramadi, Basel Al-Ramadi, Manu Vatish, Taruna Madan, Taruna Madan, Nigel Temperton, Nazar Beirag, Nazar Beirag   +17 more
doaj   +1 more source

Alternative Pathway Is Essential for Glomerular Complement Activation and Proteinuria in a Mouse Model of Membranous Nephropathy

Frontiers in Immunology, 2018
Membranous nephropathy is an immune kidney disease caused by IgG antibodies that form glomerular subepithelial immune complexes. Proteinuria is mediated by complement activation, as a result of podocyte injury by C5b-9, but the role of specific ...
Wentian Luo, Wentian Luo, Florina Olaru, Florina Olaru, Jeffrey H. Miner, Laurence H. Beck, Johan van der Vlag, Joshua M. Thurman, Dorin-Bogdan Borza, Dorin-Bogdan Borza   +9 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

An alternative cytokinin biosynthesis pathway [PDF]

Proceedings of the National Academy of Sciences, 2000
Studies of de novo cytokinin biosynthesis in isopentenyltransferase ( ipt )-transformed Arabidopsis thaliana , involving in vivo deuterium labeling and mass spectrometry, showed that the biosynthetic rate of zeatinriboside-5′-monophosphate was
C, Astot, K, Dolezal, A, Nordström, Q, Wang, T, Kunkel, T, Moritz, N H, Chua, G, Sandberg   +7 more
openaire   +2 more sources

Assessment of the Role of C3(H2O) in the Alternative Pathway

Frontiers in Immunology, 2020
In this study we investigate the hydrolysis of C3 to C3(H2O) and its ability to initiate activation via the alternative pathway (AP) of the complement system.
Karin Fromell, Anna Adler, Amanda Åman, Vivek Anand Manivel, Shan Huang, Claudia Dührkop, Kerstin Sandholm, Kristina N. Ekdahl, Kristina N. Ekdahl, Bo Nilsson   +9 more
doaj   +1 more source