CRISPR/Cas9-Mediated Knockout and Overexpression Studies Unveil the Role of PD-L1 in Immune Modulation in a Psoriasis-like Mouse Model DOI Creative Commons

Chunjie Gao,

Yunxi Cai,

Xinxin Wu

et al.

Inflammation, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

The role of programmed death-ligand 1 (PD-L1), an essential immune checkpoint protein, has garnered considerable interest in recent years due to its influence on responses, particularly inhibiting immature Th cells into Th17 cells. This study aims examine the effect PD-L1 psoriasis progress, which is condition characterized by response dominated We constructed knockout (PD-L1KO) and overexpression (PD-L1OE) mice through CRISPR/Cas9 technology assess impact imiquimod (IMQ)-induced psoriasis-like mouse model. In comparison IMQ, ear thickness exhibited a reduction, PASI score decreased, HE sections revealed thinning epidermal spines PD-L1OE mice. PD-L1KO mice, however, showed opposite results. Moreover, immunohistochemical assessments skin lesion tissues demonstrated heightened proliferation inflammatory infiltration group, accompanied elevated tissue expression proliferating cell nuclear antigen (PCNA), Nuclear factor kappa-light-chain-enhancer activated B (NF-κB) p50, F4/80 IMQ-treated WT absence IMQ-induced was found intensify response, as evidenced phosphorylated signal transducers activators transcription 3 (pSTAT3) CD3 affected compared both According our findings, plays important roles inflammation, proliferation, regulating responses. Targeting may present promising therapeutic strategy for management psoriasis.

Language: Английский

Human life within a narrow range: The lethal ups and downs of type I interferons DOI
Yanick J. Crow, Jean‐Laurent Casanova

Science Immunology, Journal Year: 2024, Volume and Issue: 9(97)

Published: July 5, 2024

The past 20 years have seen the definition of human monogenic disorders and their autoimmune phenocopies underlying either defective or enhanced type I interferon (IFN) activity. These delineate impact IFNs in natural conditions demonstrate that only a narrow window IFN activity is beneficial. Insufficient predisposes humans to life-threatening viral diseases (albeit unexpectedly few) with central role immunity respiratory cerebral infection. Excessive IFN, perhaps counterintuitively, appears underlie greater number autoinflammatory and/or known as interferonopathies, whose study has revealed multiple molecular programs involved induction signaling. observations suggest manipulation within physiological range may be clinically relevant for prevention treatment inflammatory diseases.

Language: Английский

Citations

21

Inducible antibacterial responses in macrophages DOI
Matthew J. Sweet, Divya Ramnath, Amit Singhal

et al.

Nature reviews. Immunology, Journal Year: 2024, Volume and Issue: 25(2), P. 92 - 107

Published: Sept. 18, 2024

Language: Английский

Citations

20

Nanoparticle Vaccine Triggers Interferon-Gamma Production and Confers Protective Immunity against Porcine Reproductive and Respiratory Syndrome Virus DOI

Yangyang Sun,

Yanni Gao,

Tongjian Su

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

The swine industry annually suffers significant economic losses caused by porcine reproductive and respiratory syndrome virus (PRRSV). Because the available commercial vaccines have limited protective efficacy against epidemic PRRSV, there is an urgent need for innovative solutions. Nanoparticle induce robust immune responses become a promising direction in vaccine development. In this study, we designed produced self-assembling nanoparticle derived from thermophilic archaeal ferritin to combat PRRSV. First, multiple T cell epitopes targeting viral structural proteins were identified IFN-γ screening after PRRSV infection. Three different self-assembled nanoparticles with GP3, GP4, GP5 constructed mixed generate FeCocktail vaccine. Experiments showed that effectively activated CD4+ CD8+ cells effector memory mice. Piglets immunized generated specific antibodies exhibited increased levels of PRRSV-specific functional cells. also provided challenge, including mitigation clinical symptoms, reduction loads serum lungs, alleviation lung tissue damage. conclusion, study offers candidate combating affirms utility protein as platform next-generation

Language: Английский

Citations

5

Tuberculosis in otherwise healthy adults with inherited TNF deficiency DOI Creative Commons
Andrés A. Arias, Anna‐Lena Neehus, Masato Ogishi

et al.

Nature, Journal Year: 2024, Volume and Issue: 633(8029), P. 417 - 425

Published: Aug. 28, 2024

Severe defects in human IFNγ immunity predispose individuals to both Bacillus Calmette-Guérin disease and tuberculosis, whereas milder only tuberculosis

Language: Английский

Citations

11

The Microbe, the Infection Enigma, and the Host DOI
Jean‐Laurent Casanova, Laurent Abel

Annual Review of Microbiology, Journal Year: 2024, Volume and Issue: 78(1), P. 103 - 124

Published: July 10, 2024

Human infectious diseases are unique in that the discovery of their environmental trigger, microbe, was sufficient to drive development extraordinarily effective principles and tools for prevention or cure. This medical prowess has outpaced, perhaps even hindered, scientific progress equal magnitude biological understanding diseases. Indeed, hope kindled by germ theory disease rapidly subdued infection enigma, need a host solution, when it realized most individuals infected with agents continue do well. The root causes death unhappy few remained unclear. While canonical approaches vitro (cellular microbiology), vivo (animal models), natura (clinical studies) analyzed consequences considered be cause disease, cells, tissues, organisms seen as uniform host, alternative searched preexisting particularly human genetic immunological determinants populations diverse trigger microbe.

Language: Английский

Citations

10

Design and Immune Profile of Multi-Epitope Synthetic Antigen Vaccine against SARS-CoV-2: An In Silico and In Vivo Approach DOI Creative Commons
Maria da Conceição Viana Invenção, Larissa Silva de Macêdo, Ingrid Andrêssa de Moura

et al.

Vaccines, Journal Year: 2025, Volume and Issue: 13(2), P. 149 - 149

Published: Jan. 31, 2025

The rapid advancement of the pandemic caused by SARS-CoV-2 and its variants reinforced importance developing easy-to-edit vaccines with fast production, such as multi-epitope DNA vaccines. present study aimed to construct a synthetic antigen produce vaccine. A database previously predicted Spike Nucleocapsid protein epitopes was created, these were analyzed for immunogenicity, conservation, population coverage, molecular docking. 15 considered immunogenic, conserved even in face that able anchor themselves appropriate HLA site, together had more than 90% worldwide coverage. developed sequences peptides separated from each other linkers, cloned into pVAX1 vector. This evaluated vivo vaccine elicited T CD4+ CD8+ cell expansion blood spleen. In hematological analyses, there an increase lymphocytes, monocytes, neutrophils between two doses. Furthermore, based on histopathological analysis, did not cause any damage organs analyzed. generated capable generating antibody-mediated cellular immune responses.

Language: Английский

Citations

2

Changes in Concentration of Selected Biomarkers of Exposure in Users of Classic Cigarettes, E-Cigarettes, and Heated Tobacco Products—A Narrative Review DOI Open Access
Justyna Śniadach, Aleksandra Kicman, Anna Michalska-Falkowska

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(5), P. 1796 - 1796

Published: Feb. 20, 2025

Currently, the number of e-cigarette and heated tobacco product (HTP) users are steadily increasing, while classic cigarette decreasing. The effects smoking cigarettes on human health have been thoroughly described in literature, but negative e-cigarettes HTPs body not clearly defined. Among different forms tobacco, those at a particularly high risk developing particular disease entities should be identified, allowing for faster implementation potential treatments, including psychotherapeutic ones. Biomarkers used this purpose. This paper summarizes these compounds from exposure groups cigarettes, e-cigarettes, HTPs, presents changes their concentrations fluids users. review discusses impact use relation to levels following biomarkers: TNF-α, IL-1β, IL-6, IL-8, IL-17, IFN-γ, IL-10, IL-4, Il-13, TGF-β, VEGF EGF, HGF, BDNF, MMP-9, CRP, microplastics, selected parameters oxidative stress. also includes suggested treatment, Tobacco Product Use Reduction Programs, minimize above-mentioned products.

Language: Английский

Citations

2

Manipulation of host phagocytosis by fungal pathogens and therapeutic opportunities DOI
Lei‐Jie Jia, Katherine González, Thomas Orasch

et al.

Nature Microbiology, Journal Year: 2024, Volume and Issue: 9(9), P. 2216 - 2231

Published: Aug. 26, 2024

Language: Английский

Citations

7

Interferon-gamma driven elevation of CXCL9: a new sepsis endotype independently associated with mortality DOI Creative Commons
Evangelos J. Giamarellos‐Bourboulis, Massimo Antonelli, Frank Bloos

et al.

EBioMedicine, Journal Year: 2024, Volume and Issue: 109, P. 105414 - 105414

Published: Oct. 23, 2024

Language: Английский

Citations

7

Immunopathology in human tuberculosis DOI Open Access
Thomas J. Scriba,

Mahlatse Maseeme,

Carly Young

et al.

Science Immunology, Journal Year: 2024, Volume and Issue: 9(102)

Published: Dec. 13, 2024

(

Citations

7