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Neutrophils initiate pro-inflammatory immune responses in early endometriosis lesion development.
JCI Insight
January 2025
Division of Environmental Genetics and Molecular Toxicology, University of Cincinnati College of Medicine, Cincinnati, United States of America.
Endometriosis is a chronic gynecological disease that affects 1 in 10 reproductive-aged women. Most studies investigate established disease; however, the initiation and early events in endometriotic lesion development remain poorly understood. Our study used neutrophils from human menstrual effluent from subjects with and without endometriosis for immunophenotyping, and a mouse model of endometriosis and a mouse endometriosis cell line to determine the role of neutrophils in the initiating events of endometriosis, including attachment and survival of minced endometrial pieces.
View Article and Find Full Text PDFMultidimensional profiles of adolescent social-ecological risk and protective factors and young adult sexual behavior.
Dev Psychol
January 2025
Institute for Health Research and Policy, University of Illinois.
Research has demonstrated that social-ecological risk and protective factors at multiple levels are associated with sexual behavior in adolescence. However, relatively little is known about how different patterns of these factors may work together in combination to influence sexual risk. In this study, we use nationally representative data from the U.
View Article and Find Full Text PDFSingle-cell analysis reveals ESX-1-mediated accumulation of permissive macrophages in infected mouse lungs.
Sci Adv
January 2025
Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, Department of Medicine, University of California, San Francisco, CA, USA.
(MTB) ESX-1, a type VII secretion system, is a key virulence determinant contributing to MTB's survival within lung mononuclear phagocytes (MNPs), but its effect on MNP recruitment and differentiation remains unknown. Here, using multiple single-cell RNA sequencing techniques, we studied the role of ESX-1 in MNP heterogeneity and response in mice and murine bone marrow-derived macrophages (BMDM). We found that ESX-1 is required for MTB to recruit diverse MNP subsets with high MTB burden.
View Article and Find Full Text PDFISG15-LFA1 interactions in latent HIV clearance: mechanistic implications in designing antiviral therapies.
Front Cell Dev Biol
December 2024
Biomedical Research Institute of Southern California, Oceanside, CA, United States.
Interferon types-I/II (IFN-αβ/γ) secretions are well-established antiviral host defenses. The human immunodeficiency virus (HIV) particles are known to prevail following targeted cellular interferon secretion. CD4 T-lymphocytes are the primary receptor targets for HIV entry, but the virus has been observed to hide (be latent) successfully in these cells through an alternate entry route via interactions with LFA1.
View Article and Find Full Text PDFThe viral serpin SPI-1 directly inhibits the host cell serine protease FAM111A.
J Biol Chem
January 2025
Developmental Therapeutics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA; Department of Oncology, Division of Oncology Research, Mayo Clinic, Rochester, MN, USA; Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, USA. Electronic address:
The host-range mutant of rabbitpox virus (RPXV) with a deletion in the gene encoding the serpin serine protease inhibitor 1 (SPI-1) fails to replicate efficiently in restrictive host cells. Depletion of the host cell serine protease FAM111A restores viral replication in these cells, suggesting that SPI-1 targets FAM111A to facilitate infection. However, direct evidence of SPI-1 inhibiting FAM111A has been lacking.
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