About the Authors

Yongning Lu

Affiliation Department of Anatomy and Cell Biology, Unit of Reproductive Biology, Justus-Liebig-University Giessen, Giessen, Germany

Sudhanshu Bhushan

Affiliation Department of Anatomy and Cell Biology, Unit of Reproductive Biology, Justus-Liebig-University Giessen, Giessen, Germany

Svetlin Tchatalbachev

Affiliation Department of Medical Microbiology, Justus-Liebig-University Giessen, Giessen, Germany

Marcelo Marconi

Affiliation Clinic and Policlinic of Urology, Pediatric Urology and Andrology, Justus-Liebig-University Giessen, Giessen, Germany

Martin Bergmann

Affiliation Institute of Veterinary Anatomy, Histology, and Embryology, Justus-Liebig-University Giessen, Giessen, Germany

Wolfgang Weidner

Affiliation Clinic and Policlinic of Urology, Pediatric Urology and Andrology, Justus-Liebig-University Giessen, Giessen, Germany

Trinad Chakraborty

Affiliation Department of Medical Microbiology, Justus-Liebig-University Giessen, Giessen, Germany

Andreas Meinhardt

andreas.meinhardt@anatomie.med.uni-giessen.de

Affiliation Department of Anatomy and Cell Biology, Unit of Reproductive Biology, Justus-Liebig-University Giessen, Giessen, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YL SB TC AM. Performed the experiments: YL SB ST MM MB. Analyzed the data: YL SB ST MM MB WW TC AM. Contributed reagents/materials/analysis tools: ST TC. Wrote the paper: YL SB AM.