Evaluation of various axenic and monoxenic media on the cultivation of Acanthamoeba The research, led by Debra Brock, a graduate student at Rice, found that some amoebae sequester their food-particular strains of bacteria-for later use. Like humans, amoebae too pack a lunch before traveling At...
the Hopkins researchers say, because it reacts so strongly and predictably tocigarette smokeor its laboratory form, cigarette smoke extract (CSE). The CSE damages Dicty's cytoskeleton and metabolism, bedrock cell processes that it shares with its very distant evolutionary cousins, humans. ...
Virulence mechanisms typically evolve through the continual interaction of a pathogen with its host. In contrast, it is poorly understood how environmentally acquired pathogens are able to cause disease without prior interaction with humans. Here, we pro
Here, we sequenced the genome and transcriptome of anaerobic free-living Mastigamoeba balamuthi and performed phylogenomic analysis of four related members of the Archamoebae, including Entamoeba histolytica, an important intestinal pathogen of humans. We aimed to trace gene histories throughout the ...
Amoebas can also play host to bacteria that are pathogenic to humans, and help those bacteria spread. Bacterial pathogens, such as Legionella, which can cause pneumonia- and flu-like illnesses, can resist digestion when consumed by amoebas, according to a 2018 report in the journal Front Cell...
especially since marseillevirus has already been associated with humans, which have a complex immune system. However, more studies need to be conducted on this topic [55,56,57]. Considering that MsV is often isolated from environmental samples, it has been suggested that vesicles may be relevant...
In humans, obligate infections comprise severe and deadly tuberculosis due to members of the Mycobacterium tuberculosis complex, leprae due to Mycobacterium leprae and Buruli ulcer due to Mycobacterium ulcerans. The most recent common ancestor of modern-day mycobacteria was unlikely a host-adapted ...
are free-living amoebas with worldwide distribution and play an important role as disease-causing agents in humans. Drug inability to completely eradicate these parasites along with their toxic effects suggest urgent need for new antimicrobials. Nisin is a natural antimicrobial peptide produced by ...
Bacteria closely related to chlamydiae live and multiply as endocytobionts within free-living amoebae, making these amoebae potential vehicles of new emerging bacterial pathogens of humans. Hartmannella vermiformis containing endobiotic Neochlamydia hartmannellae grew more rapidly than those without endob...
The vast majority of sequences originated from freshwater samples (Supplementary Figure S10, Supplementary Table S2); however, both clades also contained sequences from a variety of environments including soil, anthropogenic habitats, humans and animals (Figure 6). Nearly identical sequences were found...