TY - JOUR TI - Combination of Sterile Injury and Microbial Contamination to Model Post-surgical Peritoneal Adhesions in Mice AU - Bayer, Julia AU - Stroka, Deborah AU - Kubes, Paul AU - Candinas, Daniel AU - Zindel, Joel VL - 12 IS - 16 PY - 2022 DA - 2022/08/20 SP - e4491 C1 - Bio-protocol 2022;12:e4491 DO - 10.21769/BioProtoc.4491 UR - https://doi.org/10.21769/BioProtoc.4491 AB - Abdominal surgeries are frequently associated with the development of post-surgical adhesions. These are irreversible fibrotic scar bands that appear between abdominal organs and the abdominal wall. Patients suffering from adhesions are at risk of severe complications, such as small bowel obstruction, chronic pelvic pain, or infertility. To date, no cure exists, and the understanding of underlying molecular mechanisms of adhesion formation is incomplete. The current paradigm largely relies on sterile injury mouse models. However, abdominal surgeries in human patients are rarely completely sterile procedures. Here, we describe a modular surgical procedure for simultaneous or separate induction of sterile injury and microbial contamination. Combined, these insults synergistically lead to adhesion formation in the mouse peritoneal cavity. Surgical trauma is confined to a localized sterile injury of the peritoneum. Microbial contamination of the peritoneal cavity is induced by a limited perforation of the microbe-rich large intestine or by injection of fecal content. The presented protocol extends previous injury-based adhesion models by an additional insult through microbial contamination, which may more adequately model the clinical context of abdominal surgery.Graphical abstract: KW - Post-surgical adhesion KW - Microbe contamination KW - Peritoneum KW - Mice KW - Surgery KW - Peritoneal button KW - Cecal ligation and puncture KW - Peritoneal adhesion index JF - Bio-protocol SN - 2331-8325 PB - Bio-protocol LLC. BIO101 - False