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Updated: Jun 12, 2026

Mammary Epithelial Transplant Procedure
08:51

Mammary Epithelial Transplant Procedure

Published on: June 10, 2010

Mammary epithelial transplant procedure.

Karen A Dunphy1, Luwei Tao, D Joseph Jerry

  • 1Department of Veterinary and Animal Sciences, University of Massachusetts, USA.

Journal of Visualized Experiments : Jove
|June 16, 2010
PubMed
Summary

Mammary fat pad clearance and transplantation enables researchers to study mammary epithelial development and disease. This technique allows for the introduction of specific cells into a cleared environment for experimental analysis.

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Area of Science:

  • Developmental Biology
  • Cancer Research
  • Stem Cell Biology

Background:

  • Mammary gland development is largely post-pubertal.
  • Mammary epithelial growth extends throughout the fat pad by 7 weeks of age.
  • Early removal of epithelium-rich tissue at 3 weeks of age results in a 'cleared' fat pad.

Purpose of the Study:

  • To describe and compare fat pad clearance and sparing procedures.
  • To detail the mammary epithelial transplant procedure.
  • To highlight the utility of these techniques in mammary biology research.

Main Methods:

  • Comparison of DeOme KB et al. fat pad clearance and Brill B et al. sparing procedures.
  • Surgical removal of the 4th inguinal mammary gland fat pad anterior to the lymph node in 3-week-old mice.
  • Transplantation of mammary epithelium fragments or cells into the cleared fat pad.

Main Results:

  • The described surgical procedure effectively clears the mammary fat pad of endogenous epithelium.
  • Transplanted mammary epithelium can repopulate the cleared fat pad.
  • This method allows for the study of mammary epithelial behavior without confounding host factors.

Conclusions:

  • Mammary fat pad clearance and transplantation is a valuable technique in mammary gland research.
  • This method facilitates studies on tumor phenotype, stem cell identification, and hormonal effects.
  • The procedure enables investigation of mammary epithelial development and disease progression in controlled experimental models.

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