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ABSTRACT: Mycoplasma hominis clinical isolates complete sequence

PROVIDER: PRJNA493181 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR7903910.fastq.gz	Fastqsanger.gz
	SRR7903912.fastq.gz	Fastqsanger.gz
	SRR7903913.fastq.gz	Fastqsanger.gz
	SRR7903904.fastq.gz	Fastqsanger.gz

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Proteomic profiling of clinical isolates and reference strain of H-34 Mycoplasma hominis to study phenotypic adaptation

Project description:Mycoplasma hominis (M. hominis) belongs to the class Mollicutes, characterized by a very small genome size, metabolic pathway reduction, including transcription factors, and the absence of a cell wall. Despite this, they adapt well not only to specific niches within the host organism but can also spread throughout the body, colonizing various organs and tissues. The mechanisms of adaptation in M. hominis, as well as the pathways regulating them, are poorly understood. It is known that when adapting to adverse conditions, mycoplasmas can undergo phenotypic switches that may persist for several generations. To investigate the adaptive properties of M. hominis associated with survival in the host organism, we conducted a comparative proteogenomic analysis of 8 clinical isolates of M. hominis obtained from patients with urogenital infections, along with the laboratory strain H-34.

2024-06-22 | PXD048835 | Pride

The transcriptional response of prostate cells to infection with Trichomonas vaginalis and Mycoplasma hominis

Project description:The sexually transmitted parasite Trichomonas vaginalis is often found in symbiosis with the obligate intracellular pathogen Mycoplasma hominis. M. hominis is itself an opportunistic pathogen of the female reproductive tract associated with bacterial vaginosis. The goal of this experiment was to identify the effects of each pathogen individually and in symbiosis on host cell gene expression.

2024-10-03 | GSE278319 | GEO

Cell wall-deficient Mycoplasma hominis represses biofilm formation of uropathogenic Escherichia coli.

Project description:The features of Mycoplasma in human organ such lung and urinary tract are enigmatic. Here, the role of M. hominis in regard to biofilm formation of uropathogenic Escherichia coli (UPEC) strain CFT073 was investigated. Although M. hominis were inferred to not impact on UPEC bacterial fitness including growth and productions of signaling molecules as autoinducer-2 (AI-2) and indole, we found that the presence of M. hominis dramatically decreased biofilm formation of UPEC CFT073 as well as slightly repressed attachment and cytotoxicity of that. Importantly, this activity was observed on UPEC strain specifically, not enterohemorrhagic E. coli (EHEC) strain that exists on intestine. Whole-transcriptome profiling and quantitative real-time polymerase chain reaction (qRT-PCR) analysis revealed PhoPQ system and anti-termination protein (encoded by ybcQ) participates on the reduction of biofilm formation by M. hominis (corroborated by qRT-PCR). Furthermore, collaborating with previous report that toxin-antitoxin (TA) system involved in biofilm formation, M. hominis increased on the transcriptions of toxin genes including hha (toxin gene in Hha-TomB TA system) and pasT (toxin part in PasT-PasI TA system). Hence, we propose that one possible role of M. hominis is to influence bacterial biofilm formation in urinary tract. Only fourteen genes were induced (2.5-fold) by the presence of M. hominis in Uropathogenic Escherichia coli (UPEC) biofilm cells. Among upregulated genes, ybcQ (encodes anti-termination protein Q homolog) and phoP/phoQ (encode DNA-binding response regulators in two-component regulatory system), were induced by the presence of M. hominis. Two-condition experiment, UPEC CFT073 alone vs. UPEC CFT073 with Mycoplasma hominis PG21 (10^5 ccu/ml). For preparing the total RNA, UPEC CFT073 cells were grown at 37Â°C in biofilm cells on glass wool with or without M. hominis for 24 h.

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Cell wall-deficient Mycoplasma hominis represses biofilm formation of uropathogenic Escherichia coli.

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Cryptosporidium infection of human small intestinal epithelial cells induces type III interferon expression and impairs the infectivity of live-attenuated rotavirus vaccines [hALI_Cp]

Project description:We developed a stem cell-derived culture system for C. hominis using human enterocytes differentiated under air-liquid interface (ALI) conditions. Human ALI (hALI) cultures supported robust growth and complete development of C. hominis in vitro including all life cycle stages. C. hominis infection induced a strong interferon response from enterocytes, likely driven by an endogenous dsRNA virus in the parasite. Prior infection with Cryptosporidium induced type III IFN secretion and consequently blunted infection with Rotavirus, suggesting such co-infections may alter vaccine efficacy.

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