() can become a long-term infection by evading the host immune response. Coevolution of with humans has resulted in its ability to hijack the host's immune systems in a variety of ways. So far, every defense strategy is essentially dependent on a subtle balance that, if shifted, can promote proliferation in the host, resulting in disease progression. In this review, the authors summarize many important and previously unknown mechanisms by which evades the host immune response. Besides recently found strategies by which manipulates the host molecular regulatory machinery of innate and adaptive immunity, including the intranuclear regulatory machinery, costimulatory molecules, the ubiquitin system and cellular intrinsic immune components will be discussed. A holistic understanding of these immune-evasion mechanisms is of foremost importance for the prevention, diagnosis and treatment of tuberculosis and will lead to new insights into tuberculosis pathogenesis and the development of more effective vaccines and treatment regimens.
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http://dx.doi.org/10.2217/fmb-2022-0026 | DOI Listing |
Nucleic Acids Res
January 2025
Department of Biochemistry, University of Zurich, Winterthurerstrass 190, 8057 Zurich, Switzerland.
Type III clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) systems (type III CRISPR-Cas systems) use guide RNAs to recognize RNA transcripts of foreign genetic elements, which triggers the generation of cyclic oligoadenylate (cOA) second messengers by the Cas10 subunit of the type III effector complex. In turn, cOAs bind and activate ancillary effector proteins to reinforce the host immune response. Type III systems utilize distinct cOAs, including cyclic tri- (cA3), tetra- (cA4) and hexa-adenylates (cA6).
View Article and Find Full Text PDFAnalyst
January 2025
College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China.
The M13 phage carries approximately 5 copies of the pIII protein, each of which is capable of displaying a single-chain variable fragment (scFv) that targets a specific antigen. This feature enables the M13 phage to be widely employed in the construction of scFv libraries, thereby facilitating the identification of antibodies with high specificity and affinity for target antigens. In this study, mice were immunized three times with (strain C50041) to induce diverse antibodies.
View Article and Find Full Text PDFJ Clin Invest
January 2025
How are autoreactive T cells induced and regulated in patients with autoimmune disease? This question lies at the core of understanding autoimmune disease pathologies, yet it has remained elusive due to host variability and the complexity of the immune system. In this issue of the JCI, Kramer and colleagues used autoimmune hepatitis (AIH) as a model to explore the maintenance of autoreactive CD4+ T cells specific to O-phosphoseryl-tRNA:selenocysteine tRNA synthase (SepSecS). The findings provide insight into the interaction between T cells and B cells in AIH pathogenesis that may reflect a shared mechanism among other autoimmune diseases.
View Article and Find Full Text PDFAvian Pathol
January 2025
College of Animal Science and Technology/Veterinary Medicine, Anhui Agricultural University, Hefei, PR China.
Goose astrovirus (GoAstV) has emerged as a significant pathogen affecting the goose industry in China, with GoAstV-2 becoming the dominant genotype since 2017. This study explores the genetic and structural factors underlying the prevalence of GoAstV-2, focusing on codon usage bias, spike protein variability, and structural stability. Phylogenetic and effective population size analyses revealed that GoAstV-2 experienced rapid expansion between 2017 and 2018, followed by population stabilization.
View Article and Find Full Text PDFOpen Forum Infect Dis
January 2025
Department of Infection and Immunity, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.
Background: The global resurgence of disseminated tuberculosis (TB) after the coronavirus disease 2019 pandemic highlights the necessity of understanding host risk factors, especially in adults without human immunodeficiency virus.
Methods: We reviewed TB cases admitted to Shanghai Public Health Clinical Center from 2017 to 2022. We analyzed baseline characteristics and outcomes.
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