Abstract:
:Cutaneous leishmaniasis is characterized by vascular remodeling. Following infection with Leishmania parasites, the vascular endothelial growth factor A (VEGF-A)/VEGF receptor 2 (VEGFR-2) signaling pathway mediates lymphangiogenesis, which is critical for lesion resolution. Therefore, we investigated the cellular and molecular mediators involved in VEGF-A/VEGFR-2 signaling using a murine model of infection. We found that macrophages are the predominant cell type expressing VEGF-A during Leishmania major infection. Given that Leishmania parasites activate hypoxia-inducible factor 1α (HIF-1α) and this transcription factor can drive VEGF-A expression, we analyzed the expression of HIF-1α during infection. We showed that macrophages were also the major cell type expressing HIF-1α during infection and that infection-induced VEGF-A production is mediated by ARNT/HIF activation. Furthermore, mice deficient in myeloid ARNT/HIF signaling exhibited larger lesions without differences in parasite numbers. These data show that L. major infection induces macrophage VEGF-A production in an ARNT/HIF-dependent manner and suggest that ARNT/HIF signaling may limit inflammation by promoting VEGF-A production and, thus, lymphangiogenesis during infection.
journal_name
Infect Immunjournal_title
Infection and immunityauthors
Weinkopff T,Roys H,Bowlin A,Scott Pdoi
10.1128/IAI.00088-19subject
Has Abstractpub_date
2019-10-18 00:00:00issue
11eissn
0019-9567issn
1098-5522pii
IAI.00088-19journal_volume
87pub_type
杂志文章abstract::Strain superinfection occurs when a second pathogen strain infects a host already infected with a primary strain. The selective pressures that drive strain divergence, which underlies superinfection, and allow penetration of a new strain into a host population are critical knowledge gaps relevant to shifts in infectio...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.02537-14
更新日期:2014-12-01 00:00:00
abstract::Initiation of a gonococcal infection involves attachment of Neisseria gonorrhoeae to the plasma membrane of an epithelial cell in the mucosal epithelium and its internalization, transepithelial trafficking, and exocytosis from the basal membrane. Piliation and expression of certain Opa proteins and the immunoglobulin ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.68.2.896-905.2000
更新日期:2000-02-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.59.7.2463-2469.1991
更新日期:1991-07-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.57.6.1865-1867.1989
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.59.1.398-406.1991
更新日期:1991-01-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.50.3.738-744.1985
更新日期:1985-12-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.63.10.3846-3850.1995
更新日期:1995-10-01 00:00:00
abstract::Strains Inaba 569B and Ogawa B1307 of Vibrio cholerae were grown in shaken Casamino Acids-yeast extract-glucose medium at 30 and 37 C for 4 days. Time courses of production of neuraminidase (NM), mucinase (MC), proteinase (PR), lytic factor (LF), and vascular permeability factor (PF) were compared by examining culture...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:
更新日期:1970-01-01 00:00:00
abstract::Recent work has demonstrated that the polyketide natural product Aurodox from Streptomyces goldiniensis is able to block the pathogenesis of the murine pathogen Citrobacter rodentium In this work, we aimed to gain a better understanding of the mechanism of action of the compound. We show that Aurodox downregulates the...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00595-18
更新日期:2019-01-24 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.26.2.467-472.1979
更新日期:1979-11-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.70.12.7153-7155.2002
更新日期:2002-12-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.69.12.7695-7702.2001
更新日期:2001-12-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.01201-13
更新日期:2014-01-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.64.12.5161-5165.1996
更新日期:1996-12-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.62.12.5581-5586.1994
更新日期:1994-12-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.1.6.587-594.1970
更新日期:1970-06-01 00:00:00
abstract::Since secondary Streptococcus pneumoniae infections greatly increase the mortality of influenza infections, we determined the relative roles of neutrophil-dependent and -independent mechanisms in increased susceptibility to S. pneumoniae during influenza infection. Mice infected with influenza for 6 days, but not 3 da...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00789-06
更新日期:2006-12-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.63.8.2983-2988.1995
更新日期:1995-08-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.37.3.987-992.1982
更新日期:1982-09-01 00:00:00
abstract::Onchocerca volvulus, a human parasitic nematode, is the third leading cause of preventable blindness worldwide. This study describes the molecular cloning of a novel superoxide dismutase (SOD) from the parasite. This putative O. volvulus extracellular SOD (OvEcSOD) is 628 nucleotides (nt) long, including a 22-nt 5' sp...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.62.2.713-716.1994
更新日期:1994-02-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.47.3.581-586.1985
更新日期:1985-03-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.65.2.478-483.1997
更新日期:1997-02-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.57.1.41-47.1989
更新日期:1989-01-01 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.14.5.1259-1260.1976
更新日期:1976-11-01 00:00:00
abstract::Studies were carried out to determine whether treatment of mice with the synthetic adjuvant muramyl dipeptide afforded any resistance to infection with the obligate intracellular protozoan Toxoplasma gondii. Marked resistance to lethal challenge infection was observed in CBA but not C57BL/6 mice pretreated with muramy...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.31.2.716-722.1981
更新日期:1981-02-01 00:00:00
abstract::The effects of treatment with live or inactivated Shope fibroma virus on host cell deoxyribonucleic acid (DNA) synthesis were determined. The incorporation of (3)H-thymidine into nuclear DNA was suppressed by both active and inactivated virus, although live virus was more effective. During the early phase of infection...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.7.4.532-538.1973
更新日期:1973-04-01 00:00:00
abstract::Chlamydia trachomatis is an obligate intracellular pathogen that causes sexually transmitted disease. In women, chlamydial infections may cause pelvic inflammatory disease (PID), ectopic pregnancy, and infertility. The role of antibodies in protection against a primary Chlamydia infection is unclear and was a focus of...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00413-20
更新日期:2020-12-15 00:00:00
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journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.62.6.2367-2374.1994
更新日期:1994-06-01 00:00:00
abstract::Monoclonal antibodies have been generated to the unique distal sugar epitopes on the oligosaccharide haptens of the glycopeptidolipid antigens of clinically prominent members of the Mycobacterium avium serocomplex. Thus, antibodies are described that recognize the distal O-acetyl-alpha-L-rhamnopyranosyl residue of the...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.57.10.3147-3158.1989
更新日期:1989-10-01 00:00:00
abstract::We have identified a Crp/Fnr-like transcriptional regulator of Streptococcus pyogenes that when inactivated attenuates virulence. The gene, named srv for streptococcal regulator of virulence, encodes a 240-amino-acid protein with 53% amino acid similarity to PrfA, a transcriptional activator of virulence in Listeria m...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.72.3.1799-1803.2004
更新日期:2004-03-01 00:00:00