A 3D‐printable device allowing fast and reproducible longitudinal preparation of mouse intestines

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Abstract
Accurate and reproducible analysis of murine small and large intestinal tissue is key for preclinical models involving intestinal pathology. Currently, there is no easily accessible, standardized method that allows researchers of different skill levels to consistently dissect intestines in a time‐efficient manner. Here, we describe the design and use of the 3D‐printed “Mouse Intestinal Slicing Tool” (MIST), which can be used to longitudinally dissect murine intestines for further analysis. We benchmarked the MIST against a commonly used procedure involving scissors to make a longitudinal cut along the intestines. Use of the MIST halved the time per mouse to prepare the intestines and outperformed alternative methods in smoothness of the cutting edge and overall reproducibility. By sharing the plans for printing the MIST, we hope to contribute a uniformly applicable method for saving time and increasing consistency in studies of the mouse gastrointestinal tract.
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Funding Information
  • American Cancer Society (IRG‐16‐186‐21)
  • Case Comprehensive Cancer Center, Case Western Reserve University (CA043703)
  • Cleveland Clinic Foundation
  • Congressionally Directed Medical Research Programs (W81XWH‐19‐1‐0488)
  • National Institute of Allergy and Infectious Diseases (R01 AI153173)
  • Prevent Cancer Foundation (PCF2019‐JC)

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