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Mouse model of plasma cell mastitis.

Jian-jun Yu1, Shan-lin Bao, Sheng-lin Yu

  • 1Department of Surgical-oncology, Affiliated Tumor Hospital, Ningxia Medical University, Ningxia, PR China. yujjster@gmail.com

Journal of Translational Medicine
|October 11, 2012
PubMed
Summary

This study successfully created a mouse model for plasma cell mastitis, a condition mimicking breast cancer in young women. The model aids in understanding the disease

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Area of Science:

  • Immunology
  • Pathology
  • Animal Models

Background:

  • Plasma cell mastitis is a distinct breast condition resembling carcinoma, affecting non-lactating women with rising incidence.
  • Current surgical treatments for plasma cell mastitis have high recurrence rates and can cause significant physical and psychological distress.
  • The exact causes of plasma cell mastitis remain unknown, necessitating further investigation into its immunological underpinnings.

Purpose of the Study:

  • To investigate the underlying immunological changes associated with plasma cell mastitis.
  • To establish a reliable animal model for studying plasma cell mastitis.
  • To explore the potential of using patient lesions to induce a similar condition in mice.

Main Methods:

  • Lesions from patients with plasma cell mastitis were processed into a homogenate and emulsified with Freund's adjuvant.
  • Thirty female BALB/c mice were divided into five groups: blank control, normal saline control, low-dose emulsion, high-dose emulsion, and complete Freund's adjuvant control.
  • Mice were inoculated with the prepared emulsions, and mammary gland tissues were analyzed pathologically.

Main Results:

  • Control groups showed no abnormal changes in mammary gland tissues.
  • Groups C and D (emulsion inoculation) exhibited ductal dilation, epithelial cell debris, fibrosis, and significant infiltration of plasma cells and other inflammatory cells.
  • Pathological changes consistent with plasma cell mastitis were observed in 50% and 83.3% of mice in groups C and D, respectively.

Conclusions:

  • Patient-derived plasma cell mastitis lesions can induce similar clinical and pathological manifestations in female BALB/c mice.
  • The high-dose inoculation group successfully established a mouse model for plasma cell mastitis.
  • This animal model provides a valuable tool for further research into the etiology and treatment of plasma cell mastitis.