Institution
Torrey Pines Institute for Molecular Studies
Nonprofit•San Diego, California, United States•
About: Torrey Pines Institute for Molecular Studies is a nonprofit organization based out in San Diego, California, United States. It is known for research contribution in the topics: T cell & Antigen. The organization has 2323 authors who have published 2217 publications receiving 112618 citations.
Topics: T cell, Antigen, Solid-phase synthesis, Cytotoxic T cell, Peptide
Papers published on a yearly basis
Papers
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TL;DR: It is suggested that UBQLN1 may normally serve as a cytoplasmic “gatekeeper” that may control APP trafficking from intracellular compartments to the cell surface, thereby influencing the generation of Aβ.
96 citations
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TL;DR: It appears that CXCR2 is the major receptor mediating neutrophil trafficking to the lung during influenza virus infection, but that neutrophils do not play an essential role in viral clearance.
Abstract: Neutrophils traffic to the lungs in large numbers during influenza virus infection. Although the ability of these cells to respond to numerous chemotactic stimuli has been described in other systems, the chemokine receptors mediating recruitment of neutrophils to the lungs during influenza virus infection and the role of this cell type in viral clearance are currently undefined. In the present study, we used CXCR2(/) mice to investigate the role of the chemokine receptor CXCR2 in neutrophil recruitment to the lungs during influenza virus infection and to determine the role of neutrophils in viral clearance. We infected CXCR2(/) or wild-type mice with influenza and assessed the level of inflammation, the cellular composition of the inflammatory infiltrate, and viral titers in the lungs. Absence of CXCR2 ablated neutrophil recruitment to the lungs, but had no effect on peak viral titers or on the kinetics of viral clearance. Thus, it appears that CXCR2 is the major receptor mediating neutrophil trafficking to the lung during influenza virus infection, but that neutrophils do not play an essential role in viral clearance.
96 citations
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TL;DR: The interaction of the lactoferricin-derived peptide LF11 and its N-terminally acylated analogue, lauryl-LF11, with different chemotypes of bacterial lipopolysaccharide (LPS Re, Ra and smooth S form) was investigated by biophysical means and was related to the peptides' biological activities.
Abstract: Antibacterial peptide acylation, which mimics the structure of the natural lipopeptide polymyxin B, increases antimicrobial and endotoxin-neutralizing activities. The interaction of the lactoferricin-derived peptide LF11 and its N-terminally acylated analogue, lauryl-LF11, with different chemotypes of bacterial lipopolysaccharide (LPS Re, Ra and smooth S form) was investigated by biophysical means and was related to the peptides' biological activities. Both peptides exhibit high antibacterial activity against the three strains of Salmonella enterica differing in the LPS chemotype. Lauryl-LF11 has one order of magnitude higher activity against Re-type, but activity against Ra- and S-type bacteria is comparable with that of LF11. The alkyl derivative peptide lauryl-LF11 shows a much stronger inhibition of the LPS-induced cytokine induction in human mononuclear cells than LF11. Although peptide-LPS interaction is essentially of electrostatic nature, the lauryl-modified peptide displays a strong hydrophobic component. Such a feature might then explain the fact that saturation of the peptide binding takes place at a much lower peptide/LPS ratio for LF11 than for lauryl-LF11, and that an overcompensation of the negative LPS backbone charges is observed for lauryl-LF11. The influence of LF11 on the gel-to-liquid-crystalline phase-transition of LPS is negligible for LPS Re, but clearly fluidizing for LPS Ra. In contrast, lauryl-LF11 causes a cholesterol-like effect in the two chemotypes, fluidizing in the gel and rigidifying of the hydrocarbon chains in the liquid-crystalline phase. Both peptides convert the mixed unilamellar/non-lamellar aggregate structure of lipid A, the 'endotoxic principle' of LPS, into a multilamellar one. These data contribute to the understanding of the mechanisms of the peptide-mediated neutralization of endotoxin and effect of lipid modification of peptides.
96 citations
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TL;DR: Overall, these studies provide strong support for a model in which the first three zinc fingers of TFIIIA bind with high affinity between nucleotides +80 and +92 of the internal control region of the 5 S RNA gene.
95 citations
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TL;DR: Results, combined with studies of the binding to artificial liposomes and to polysialic acids, indicate that the losses in activity were due to an initial inability to be induced into an amphipathic α-helix and to self associate.
95 citations
Authors
Showing all 2327 results
Name | H-index | Papers | Citations |
---|---|---|---|
Eric J. Topol | 193 | 1373 | 151025 |
John R. Yates | 177 | 1036 | 129029 |
George F. Koob | 171 | 935 | 112521 |
Ian A. Wilson | 158 | 971 | 98221 |
Peter G. Schultz | 156 | 893 | 89716 |
Gerald M. Edelman | 147 | 545 | 69091 |
Floyd E. Bloom | 139 | 616 | 72641 |
Stuart A. Lipton | 134 | 488 | 71297 |
Benjamin F. Cravatt | 131 | 666 | 61932 |
Chi-Huey Wong | 129 | 1220 | 66349 |
Klaus Ley | 129 | 495 | 57964 |
Nicholas J. Schork | 125 | 587 | 62131 |
Michael Andreeff | 117 | 959 | 54734 |
Susan L. McElroy | 117 | 570 | 44992 |
Peter E. Wright | 115 | 444 | 55388 |