Effect of endometriosis on the fecal bacteriota composition of mice during the acute phase of lesion formation

Autoři: Josefine Hantschel aff001;  Severin Weis aff002;  Karl-Herbert Schäfer aff003;  Michael D. Menger aff001;  Matthias Kohl aff004;  Markus Egert aff002;  Matthias W. Laschke aff001
Působiště autorů: Institute for Clinical & Experimental Surgery, Saarland University, Homburg/Saar, Germany aff001;  Faculty of Medical and Life Sciences, Institute of Precision Medicine, Microbiology and Hygiene Group, Furtwangen University, Villingen-Schwenningen, Germany aff002;  Campus Zweibrücken, University of Applied Sciences Kaiserslautern, Zweibrücken, Germany aff003;  Faculty of Medical and Life Sciences, Institute of Precision Medicine, Group for Statistics in Biology and Medicine, Furtwangen University, Villingen-Schwenningen, Germany aff004
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0226835


Accumulating evidence indicates that there is an interaction between the gut microbiota and endometriotic lesions. The new formation of these lesions is associated with stem cell recruitment, angiogenesis and inflammation, which may affect the composition of the gut microbiota. To test this hypothesis, we herein induced endometriotic lesions by transplantation of uterine tissue fragments from green fluorescent protein (GFP)+ donor mice into the peritoneal cavity of GFP- C57BL/6 wild-type mice. Sham-transplanted animals served as controls. Fecal pellets of the animals were collected 3 days before as well as 7 and 21 days after the induction of endometriosis to analyze the composition of the gut microbiota by means of 16S ribosomal RNA gene sequencing. The transplantation of uterine tissue fragments resulted in the establishment of endometriotic lesions in all analyzed mice. These lesions exhibited a typical histomorphology with endometrial glands surrounded by a vascularized stroma. Due to their bright GFP signal, they could be easily differentiated from the surrounding GFP- host tissue. Bacterial 16S rRNA genes were successfully PCR-amplified from the DNA extracts of all obtained mice fecal samples. However, no significant effect of endometriosis induction on the composition of the bacterial microbiota was detected with our experimental setup. Our findings allow careful speculation that endometriosis in mice does not induce pronounced dysbiosis during the acute phase of lesion formation.

Klíčová slova:

Bacteria – Gene sequencing – Gut bacteria – Microbiome – Polymerase chain reaction – Ribosomal RNA – Sequence assembly tools – Sequence databases


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