Transmission electron micrograph shows a germinated microsporidian spore adjacent to a host cell, with a polar tube extending to transfer sporoplasm into the host cytoplasm. The study identified EnP1, a nucleus-targeted effector secreted by microsporidia, which enhances their proliferation by interacting with host histone H2A and inhibiting ferroptosis. This research highlights how microsporidia alter host cell functions through secreted effector proteins, ultimately facilitating their own survival and contributing to disease progression. Guan et al. 2026
Image Credit: Bing Han
Pearls
Viral proteins as discovery tools for cell biology: The case of the geminivirus-encoded C4
PLOS Pathogens: published January 5, 2026 | https://doi.org/10.1371/journal.ppat.1013798
Diversify and conquer: How effector diversity is shaped by host–microbe co-evolution
PLOS Pathogens: published January 23, 2026 | https://doi.org/10.1371/journal.ppat.1013870
Oo-No: Ophidiomyces ophidiicola-bacterial interactions and the role of skin lipids in development of ophidiomycosis
PLOS Pathogens: published January 23, 2026 | https://doi.org/10.1371/journal.ppat.1013875
Abscisic acid at the crossroad of abiotic stress responses and plant-microbe interactions
PLOS Pathogens: published January 23, 2026 | https://doi.org/10.1371/journal.ppat.1013872
Metarhizium anisopliae: A fungal biocontrol agent against Rhipicephalus microplus
PLOS Pathogens: published January 30, 2026 | https://doi.org/10.1371/journal.ppat.1013918
Research Articles
A BRCT domain-containing protein induced in early phagocytosis plays a crucial role in the pathogenesis of the mucoralean Rhizopus microsporus
PLOS Pathogens: published January 2, 2026 | https://doi.org/10.1371/journal.ppat.1013653
A prophage-encoded sRNA limits phage infection of adherent-invasive E. coli
PLOS Pathogens: published January 2, 2026 | https://doi.org/10.1371/journal.ppat.1013836
Natural genetic variation of a single amino acid in beet necrotic yellow vein virus P31 protein modulates evasion of plant ubiquitination-mediated antiviral immunity
PLOS Pathogens: published January 2, 2026 | https://doi.org/10.1371/journal.ppat.1013840
Targeting of interaction between BB0323-BB0238 informs new paradigms in Lyme disease therapeutics
PLOS Pathogens: published January 2, 2026 | https://doi.org/10.1371/journal.ppat.1013805
piR-bmo-796514 facilitates the proliferation of exogenous DNA virus (baculovirus) by targeting the host E3 ubiquitin ligase RNF181
PLOS Pathogens: published January 6, 2026 | https://doi.org/10.1371/journal.ppat.1013848
Structural basis for human DPP4 receptor recognition by MERS-like coronaviruses 2014-422 and GX2012
PLOS Pathogens: published January 7, 2026 | https://doi.org/10.1371/journal.ppat.1013792
Evaluating modes of influenza transmission (EMIT-2): Insights from lack of transmission in a controlled transmission trial with naturally infected donors
PLOS Pathogens: published January 7, 2026 | https://doi.org/10.1371/journal.ppat.1013153
Monoclonal neutralizing antibodies elicited by infection with Kaposi sarcoma-associated herpesvirus reveal critical sites of vulnerability on gH/gL
PLOS Pathogens: published January 7, 2026 | https://doi.org/10.1371/journal.ppat.1013772
cGAS-STING dependent type I IFN reduces Leptospira interrogans renal colonization in mice
PLOS Pathogens: published January 7, 2026 | https://doi.org/10.1371/journal.ppat.1013250
EnP1 exploits H2Aub-dependent epigenetic reprogramming to promote microsporidia proliferation in host cells
PLOS Pathogens: published January 7, 2026 | https://doi.org/10.1371/journal.ppat.1013853
Serine protease-driven entry and S2 ′ cleavage flexibility of feline coronavirus during feline enterocyte infections
PLOS Pathogens: published January 8, 2026 | https://doi.org/10.1371/journal.ppat.1013854
Arginine metabolism has a pivotal function for the encystation of Giardia duodenalis
PLOS Pathogens: published January 8, 2026 | https://doi.org/10.1371/journal.ppat.1013851
Exonuclease ISG20 inhibits human cytomegalovirus replication by inducing an innate immune defense signature
PLOS Pathogens: published January 9, 2026 | https://doi.org/10.1371/journal.ppat.1013856
Basal IFNλ2/3 signaling is required for ISG expression and viral control in human intestinal epithelial cells
PLOS Pathogens: published January 12, 2026 | https://doi.org/10.1371/journal.ppat.1013857
Inapparent maternal ZIKV infection impacts fetal brain development and postnatal behavior
PLOS Pathogens: published January 12, 2026 | https://doi.org/10.1371/journal.ppat.1013850
Lumpy skin disease virus protein LSDV122 impairs IFN-I receptor complex formation to evade host innate immunity
PLOS Pathogens: published January 12, 2026 | https://doi.org/10.1371/journal.ppat.1013871
Oligosaccharyltransferase (OST) complex inhibition effectively treats rodent and human prions
PLOS Pathogens: published January 12, 2026 | https://doi.org/10.1371/journal.ppat.1013867
HIV-1 derived oligonucleotides induce a type I IFN/STING dependent immune suppression reversible by targeting IFNARI
PLOS Pathogens: published January 13, 2026 | https://doi.org/10.1371/journal.ppat.1013868
Development and validation of HIV SMRTcap for the characterization of HIV-1 reservoirs across tissues and subtypes
PLOS Pathogens: published January 13, 2026 | https://doi.org/10.1371/journal.ppat.1013171
Dynamics of lung-infiltrating virus-specific T cells associated with age-dependent SARS-CoV-2 pneumonia severity
PLOS Pathogens: published January 14, 2026 | https://doi.org/10.1371/journal.ppat.1013866
Structural mapping of NTCP distinguishes its dual functionality as a hepatitis B virus receptor and bile acid transporter
PLOS Pathogens: published January 16, 2026 | https://doi.org/10.1371/journal.ppat.1013824
Plant rhabdovirus glycoprotein activates unfolded protein response-mediated antiviral ER-phagy in insect vectors
PLOS Pathogens: published January 16, 2026 | https://doi.org/10.1371/journal.ppat.1013888
Multifaceted B cell response to transient HIV viremia in elite controllers
PLOS Pathogens: published January 16, 2026 | https://doi.org/10.1371/journal.ppat.1013817
Structure of defense against restriction proteins DarA and Hdf in phage P1 reveals a new molecular mechanism during phage assembly, infection and DNA ejection
PLOS Pathogens: published January 16, 2026 | https://doi.org/10.1371/journal.ppat.1013869
Carbapenem resistant Klebsiella pneumoniae isolates at a tertiary hospital in Cape Town, South Africa, are dominated by specific local clones rather than previously described international lineages
PLOS Pathogens: published January 16, 2026 | https://doi.org/10.1371/journal.ppat.1013859
Nucleus softens during herpesvirus infection
PLOS Pathogens: published January 20, 2026 | https://doi.org/10.1371/journal.ppat.1013873
Purifying selection constrains the evolution of Juquitiba virus in wild Oligoryzomys nigripes communities
PLOS Pathogens: published January 20, 2026 | https://doi.org/10.1371/journal.ppat.1013839
Peptidoglycan architecture dictates protein interactions, tissue tropism, and arthritis in the Lyme disease spirochete Borrelia burgdorferi
PLOS Pathogens: published January 20, 2026 | https://doi.org/10.1371/journal.ppat.1013849
The Oxylipin Dependent Quorum Sensing System enhances Pseudomonas aeruginosa dissemination during burn-associated infection
PLOS Pathogens: published January 20, 2026 | https://doi.org/10.1371/journal.ppat.1013885
The receptor binding properties of H5Ny influenza A viruses have evolved to bind to avian-type mucin-like O-glycans
PLOS Pathogens: published January 20, 2026 | https://doi.org/10.1371/journal.ppat.1013812
Acetylation dynamics of MrATG4 governing autophagy-mediated conidiation in an entomopathogenic fungus
PLOS Pathogens: published January 20, 2026 | https://doi.org/10.1371/journal.ppat.1013883
Fecal microbiota transplantation ameliorates radiation-induced lung injury by reshaping gut metabolic homeostasis to activate FAM134B-mediated ER-phagy
PLOS Pathogens: published January 21, 2026 | https://doi.org/10.1371/journal.ppat.1013786
Palmitoylation of the human cytomegalovirus tegument protein pp28 facilitates virus release
PLOS Pathogens: published January 22, 2026 | https://doi.org/10.1371/journal.ppat.1013894
Exogenous amdoparvoviruses (Parvoviridae) in arvicoline voles: the molecular evolution and ecology of a novel host-viral association
PLOS Pathogens: published January 22, 2026 | https://doi.org/10.1371/journal.ppat.1013896
Molecular mechanism of ziresovir targeting the fusion glycoprotein of respiratory syncytial virus
PLOS Pathogens: published January 23, 2026 | https://doi.org/10.1371/journal.ppat.1013864
Intra-patient neuraminidase mutations in avian H5N1 influenza virus reduce sialidase activity to complement weaker hemagglutinin binding and facilitate human infection
PLOS Pathogens: published January 23, 2026 | https://doi.org/10.1371/journal.ppat.1013863
Epstein-barr virus latent membrane protein 1 targets cIAP1, cIAP2 and TRAF2 for proteasomal degradation to activate the non-canonical NF-κB pathway
PLOS Pathogens: published January 26, 2026 | https://doi.org/10.1371/journal.ppat.1013898
Anti-orthopoxvirus drugs inhibit lumpy skin disease virus replication by targeting viral DNA polymerase
PLOS Pathogens: published January 26, 2026 | https://doi.org/10.1371/journal.ppat.1013903
The βC1 protein encoded in betasatellites promotes begomovirus-whitefly coexistence by subverting vector infestation-induced plant antiviral defenses
PLOS Pathogens: published January 26, 2026 | https://doi.org/10.1371/journal.ppat.1013907
De novo nucleotide biosynthesis and its dynamic regulation are crucial for systemic infection by extraintestinal Escherichia coli
PLOS Pathogens: published January 26, 2026 | https://doi.org/10.1371/journal.ppat.1013889
HCMV encoded UL84 hijacks FHL2 to suppress type I interferon production and enhance viral replication
PLOS Pathogens: published January 26, 2026 | https://doi.org/10.1371/journal.ppat.1013895
Tissue-resident macrophage and dendritic cells drive type I IFN immunity to enteroviruses in the liver
PLOS Pathogens: published January 27, 2026 | https://doi.org/10.1371/journal.ppat.1013891
Pfs48/45 nanobodies block Plasmodium falciparum transmission
PLOS Pathogens: published January 27, 2026 | https://doi.org/10.1371/journal.ppat.1013884
A highly potent and broadly accessible bispecific nanobody for the treatment of ebola virus infections
PLOS Pathogens: published January 27, 2026 | https://doi.org/10.1371/journal.ppat.1013878
White spot syndrome virus IE1 protein hijacks the host pentose phosphate pathway to fuel viral replication
PLOS Pathogens: published January 27, 2026 | https://doi.org/10.1371/journal.ppat.1013913
A Spinster-like Transporter at the Inner Membrane Complex is critical for Toxoplasma gondii cytokinesis, motility and invasion
PLOS Pathogens: published January 28, 2026 | https://doi.org/10.1371/journal.ppat.1013886
Membrane-anchored PrPSc is the trigger for prion synaptotoxicity
PLOS Pathogens: published January 28, 2026 | https://doi.org/10.1371/journal.ppat.1013911
Examining the role of IgA in a persistent model of Staphylococcus aureus colonization
PLOS Pathogens: published January 28, 2026 | https://doi.org/10.1371/journal.ppat.1013924
The effect of combining HIV latency reversal with inhibition of phosphoinositide-3 kinases or B-cell lymphoma-2 on the HIV reservoir
PLOS Pathogens: published January 29, 2026 | https://doi.org/10.1371/journal.ppat.1013923
The host protein cyclophilin A restricts nuclear entry of HIV-1 mutants by reducing the elasticity of the viral capsid
PLOS Pathogens: published January 29, 2026 | https://doi.org/10.1371/journal.ppat.1013910
Prevalence and mechanisms of high-level carbapenem antibiotic tolerance in clinical isolates of Klebsiella pneumoniae
PLOS Pathogens: published January 30, 2026 | https://doi.org/10.1371/journal.ppat.1013919
HIV impairs and exploits pulmonary Th17 and Th22 cell-mediated immune responses to Mycobacterium tuberculosis
PLOS Pathogens: published January 30, 2026 | https://doi.org/10.1371/journal.ppat.1013897
YAP Inhibits HIV-1 transcription and promotes HIV-1 latency by regulating E3 ubiquitin ligase UHRF1 mediated tat degradation
PLOS Pathogens: published January 30, 2026 | https://doi.org/10.1371/journal.ppat.1013906
Correction
Correction: Systemic Expression of Kaposi Sarcoma Herpesvirus (KSHV) Vflip in Endothelial Cells Leads to a Profound Proinflammatory Phenotype and Myeloid Lineage Remodeling In Vivo
PLOS Pathogens: published January 5, 2026 | https://doi.org/10.1371/journal.ppat.1013809
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PLOS Pathogens: published January 5, 2026 | https://doi.org/10.1371/journal.ppat.1013827
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