Abstract:
:The ability to switch between yeast and filamentous forms is central to Candida albicans biology. The yeast-hyphal transition is implicated in adherence, tissue invasion, biofilm formation, phagocyte escape, and pathogenesis. A second form of morphological plasticity in C. albicans involves epigenetic switching between white and opaque forms, and these two states exhibit marked differences in their ability to undergo filamentation. In particular, filamentous growth in white cells occurs in response to a number of environmental conditions, including serum, high temperature, neutral pH, and nutrient starvation, whereas none of these stimuli induce opaque filamentation. Significantly, however, we demonstrate that opaque cells can undergo efficient filamentation but do so in response to distinct environmental cues from those that elicit filamentous growth in white cells. Growth of opaque cells in several environments, including low phosphate medium and sorbitol medium, induced extensive filamentous growth, while white cells did not form filaments under these conditions. Furthermore, while white cell filamentation is often enhanced at elevated temperatures such as 37°C, opaque cell filamentation was optimal at 25°C and was inhibited by higher temperatures. Genetic dissection of the opaque filamentation pathway revealed overlapping regulation with the filamentous program in white cells, including key roles for the transcription factors EFG1, UME6, NRG1 and RFG1. Gene expression profiles of filamentous white and opaque cells were also compared and revealed only limited overlap between these programs, although UME6 was induced in both white and opaque cells consistent with its role as master regulator of filamentation. Taken together, these studies establish that a program of filamentation exists in opaque cells. Furthermore, this program regulates a distinct set of genes and is under different environmental controls from those operating in white cells.
journal_name
PLoS Pathogjournal_title
PLoS pathogensauthors
Si H,Hernday AD,Hirakawa MP,Johnson AD,Bennett RJdoi
10.1371/journal.ppat.1003210subject
Has Abstractpub_date
2013-03-01 00:00:00pages
e1003210issue
3eissn
1553-7366issn
1553-7374pii
PPATHOGENS-D-12-02196journal_volume
9pub_type
杂志文章相关文献
PLoS Pathogens文献大全abstract::Parasitic nematodes are of medical and veterinary importance, adversely affecting human health and animal welfare. Ascaris suum is a gastrointestinal parasite of pigs; in addition to its veterinary significance it is a good model of the human parasite Ascaris lumbricoides, estimated to infect approximately 1.4 billion...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1000517
更新日期:2009-07-01 00:00:00
abstract::The intracellular pathogen Listeria monocytogenes is distinguished by its ability to invade and replicate within mammalian cells. Remarkably, of the 15 serovars within the genus, strains belonging to serovar 4b cause the majority of listeriosis clinical cases and outbreaks. The Listeria O-antigens are defined by subtl...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1008032
更新日期:2019-10-07 00:00:00
abstract::During blood stage Plasmodium falciparum infection, merozoites invade uninfected erythrocytes via a complex, multistep process involving a series of distinct receptor-ligand binding events. Understanding each element in this process increases the potential to block the parasite's life cycle via drugs or vaccines. To i...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1004670
更新日期:2015-02-27 00:00:00
abstract::Hendra and Nipah viruses (family Paramyxoviridae, genus Henipavirus) are bat-borne viruses that cause fatal disease in humans and a range of other mammalian species. Gaining a deeper understanding of host pathways exploited by henipaviruses for infection may identify targets for new anti-viral therapies. Here we have ...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1005974
更新日期:2016-10-26 00:00:00
abstract::Bacille Calmette-Guérin (BCG) is currently the only approved vaccine against tuberculosis (TB) and is administered in over 150 countries worldwide. Despite its widespread use, the vaccine has a variable protective efficacy of 0-80%, with the lowest efficacy rates in tropical regions where TB is most prevalent. This va...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1005614
更新日期:2016-05-06 00:00:00
abstract::Endogenous retroviruses (ERVs), remnants of ancient germline infections, comprise 8% of the human genome. The most recently integrated includes human ERV-K (HERV-K) where several envelope (env) sequences remain intact. Viral pseudotypes decorated with one of those Envs are infectious. Using a recombinant vesicular sto...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1007123
更新日期:2018-08-06 00:00:00
abstract::Various bacterial toxins circumvent host defenses through overproduction of cAMP. In a previous study, we showed that edema factor (EF), an adenylate cyclase from Bacillus anthracis, disrupts endocytic recycling mediated by the small GTPase Rab11. As a result, cargo proteins such as cadherins fail to reach inter-cellu...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1006603
更新日期:2017-09-25 00:00:00
abstract::Bacterial superantigens (SAgs) cause Vβ-dependent T-cell proliferation leading to immune dysregulation associated with the pathogenesis of life-threatening infections such as toxic shock syndrome, and necrotizing pneumonia. Previously, we demonstrated that staphylococcal enterotoxin-like toxin X (SElX) from Staphyloco...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1006461
更新日期:2017-09-07 00:00:00
abstract::Herpesviruses infect most humans. Their infections can be associated with pathological conditions and significant changes in T cell repertoire but evidences of symbiotic effects of herpesvirus latency have never been demonstrated. We tested the hypothesis that HCMV and EBV-specific CD8 T cells contribute to the hetero...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1001051
更新日期:2010-08-19 00:00:00
abstract::The fate of HIV-infected cells after reversal of proviral latency is not well characterized. Simonetti, et al. recently showed that CD4+ T-cells containing intact proviruses can clonally expand in vivo and produce low-level infectious viremia. We hypothesized that reversal of HIV latency by activation of CD4+ T-cells ...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1006230
更新日期:2017-02-22 00:00:00
abstract::Malaria, caused by the apicomplexan parasite Plasmodium, still represents a major threat to human health and welfare and leads to about one million human deaths annually. Plasmodium is a rapidly multiplying unicellular organism undergoing a complex developmental cycle in man and mosquito - a life style that requires r...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1001242
更新日期:2010-12-23 00:00:00
abstract::IFNγ signaling drives dendritic cells (DCs) to promote type I T cell (Th1) immunity. Here, we show that activation of DCs by IFNγ is equally crucial for the differentiation of a population of T-bet+ regulatory T (Treg) cells specialized to inhibit Th1 immune responses. Conditional deletion of IFNγ receptor in DCs but ...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1004635
更新日期:2015-02-06 00:00:00
abstract::Staphylococcus aureus USA300 strains cause a highly inflammatory necrotizing pneumonia. The virulence of this strain has been attributed to its expression of multiple toxins that have diverse targets including ADAM10, NLRP3 and CD11b. We demonstrate that induction of necroptosis through RIP1/RIP3/MLKL signaling is a m...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1004820
更新日期:2015-04-16 00:00:00
abstract::A key difference that distinguishes viral infections from protein immunizations is the recognition of viral nucleic acids by cytosolic pattern recognition receptors (PRRs). Insights into the functions of cytosolic PRRs such as the RNA-sensing Rig-I-like receptors (RLRs) in the instruction of adaptive immunity are ther...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1009009
更新日期:2020-10-26 00:00:00
abstract::The function of Toll pathway defense against bacterial infection has been well established in shrimp, however how this pathway responds to viral infection is still largely unknown. In this study, we report the Toll4-Dorsal-AMPs cascade restricts the white spot syndrome virus (WSSV) infection of shrimp. A total of nine...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1007109
更新日期:2018-09-26 00:00:00
abstract::Innate immune cells shape the host response to microbial pathogens. Here we elucidate critical differences in the molecular response of macrophages vs. dendritic cells (DCs) to Histoplasma capsulatum, an intracellular fungal pathogen of humans. It has long been known that macrophages are permissive for Histoplasma gro...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1005749
更新日期:2016-07-26 00:00:00
abstract::In the United States, the introduction of the heptavalent pneumococcal conjugate vaccine (PCV) largely eliminated vaccine serotypes (VT); non-vaccine serotypes (NVT) subsequently increased in carriage and disease. Vaccination also disrupts the composition of the pneumococcal pangenome, which includes mobile genetic el...
journal_title:PLoS pathogens
pub_type: 杂志文章,随机对照试验
doi:10.1371/journal.ppat.1006966
更新日期:2018-04-04 00:00:00
abstract::Enterovirus 71 (EV71) is the most virulent pathogen among enteroviruses that cause hand, foot and mouth disease in children but rarely in adults. The mechanisms that determine the age-dependent susceptibility remain largely unclear. Here, we found that the paucity of invariant natural killer T (iNKT) cells together wi...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1004613
更新日期:2015-01-23 00:00:00
abstract::RNA helicases and chaperones are the two major classes of RNA remodeling proteins, which function to remodel RNA structures and/or RNA-protein interactions, and are required for all aspects of RNA metabolism. Although some virus-encoded RNA helicases/chaperones have been predicted or identified, their RNA remodeling a...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1005067
更新日期:2015-07-28 00:00:00
abstract::HIV and other lentiviruses can productively infect nondividing cells, whereas most other retroviruses, such as murine leukemia virus, require cell division for efficient infection. However, the determinants for this phenotype have been controversial. Here, we show that HIV-1 capsid (CA) is involved in facilitating HIV...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.0030156
更新日期:2007-10-26 00:00:00
abstract::Clonorchis sinensis is a carcinogenic human liver fluke, prolonged infection which provokes chronic inflammation, epithelial hyperplasia, periductal fibrosis, and even cholangiocarcinoma (CCA). These effects are driven by direct physical damage caused by the worms, as well as chemical irritation from their excretory-s...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1007818
更新日期:2019-05-23 00:00:00
abstract::Human cytomegalovirus (HCMV), a dsDNA, enveloped virus, is a ubiquitous pathogen that establishes lifelong latent infections and caused disease in persons with compromised immune systems, e.g., organ transplant recipients or AIDS patients. HCMV is also a leading cause of congenital viral infections in newborns. Entry ...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1005227
更新日期:2015-10-20 00:00:00
abstract::Certain pathogens deliver effectors into plant cells to modify host protein targets and thereby suppress immunity. These target modifications can be detected by intracellular immune receptors, or Resistance (R) proteins, that trigger strong immune responses including localized host cell death. The accelerated cell dea...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1001137
更新日期:2010-10-07 00:00:00
abstract::The pathogenic fungus Cryptococcus neoformans exhibits morphological changes in cell size during lung infection, producing both typical size 5 to 7 μm cells and large titan cells (> 10 μm and up to 100 μm). We found and optimized in vitro conditions that produce titan cells in order to identify the ancestry of titan c...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1006982
更新日期:2018-05-18 00:00:00
abstract::Abnormal metabolism and uncontrolled angiogenesis are two important characteristics of malignant tumors. The occurrence of both events involves many key molecular changes including miRNA. However, EBV encoded miRNAs are rarely mentioned as capable of regulating tumor metabolism and tumor angiogenesis. Here, we reporte...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1007484
更新日期:2018-12-17 00:00:00
abstract::Host control of influenza A virus (IAV) is associated with exuberant pulmonary inflammation characterized by the influx of myeloid cells and production of proinflammatory cytokines including interferons (IFNs). It is unclear, however, how the immune system clears the virus without causing lethal immunopathology. Here,...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1005378
更新日期:2016-01-05 00:00:00
abstract::Successful infection of the host requires secretion of effector proteins to evade or suppress plant immunity. Secretion of effectors in root-infecting fungal pathogens, however, remains unexplored. We previously reported that Verticillium dahliae, a root-infecting phytopathogenic fungus, develops a penetration peg fro...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1006275
更新日期:2017-03-10 00:00:00
abstract::The intrinsic oncotropism and oncosuppressive activities of rodent protoparvoviruses (PVs) are opening new prospects for cancer virotherapy. Virus propagation, cytolytic activity, and spread are tightly connected to activation of the PDK1 signaling cascade, which delays stress-induced cell death and sustains functioni...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1004703
更新日期:2015-03-05 00:00:00
abstract::The intracellular pathogenic bacterium Brucella generates a replicative vacuole (rBCV) derived from the endoplasmic reticulum via subversion of the host cell secretory pathway. rBCV biogenesis requires the expression of the Type IV secretion system (T4SS) VirB, which is thought to translocate effector proteins that mo...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1003556
更新日期:2013-01-01 00:00:00
abstract::The factors determining the functional avidity and its relationship with the broad heterogeneity of antiviral T cell responses remain partially understood. We investigated HIV-specific CD8 T cell responses in 85 patients with primary HIV infection (PHI) or chronic (progressive and non-progressive) infection. The funct...
journal_title:PLoS pathogens
pub_type: 杂志文章
doi:10.1371/journal.ppat.1003423
更新日期:2013-01-01 00:00:00