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Studies on murine thyroiditis: new insights from organ flow cytometry
Patrizio Caturegli1, Noel R Rose, Miho Kimura
1The Johns Hopkins Medical Institutions, Department of Pathology, Baltimore, Maryland, USA. pcat@jhmi.edu
Summary
Digital imaging enhances the reliability of assessing autoimmune disease in mouse models. Flow cytometry directly on the thyroid gland provides a more accurate reflection of disease pathogenesis.
Area of Science:
- Immunology
- Pathology
- Digital Health
Background:
- Autoimmune disease pathogenesis is often studied using murine models.
- Traditional assessment relies on light microscopy, which can have variable reliability.
Purpose of the Study:
- To evaluate if digital imaging improves the reliability of histopathological assessment in murine models of autoimmune disease.
- To determine the applicability of flow cytometry directly on the murine thyroid gland for studying autoimmune pathogenesis.
Main Methods:
- Studied 395 immunized and 192 non-immunized CBA/J mice.
- Assessed disease outcome using digital imaging of thyroid histopathology.
- Performed flow cytometry directly on murine thyroid tissue.
Main Results:
- Digital imaging significantly improved the reliability of histopathological assessment (r = 0.988, p < 0.0001).
- Flow cytometry was successfully performed on the murine thyroid.
- Normal thyroids showed a higher-than-expected number of interstitial hematopoietic cells.
Conclusions:
- Digital imaging offers a more reliable method for estimating autoimmune disease outcome in murine models.
- Target organ flow cytometry, specifically on the thyroid, provides a closer reflection of autoimmune pathogenesis than peripheral lymphoid organ analysis.
- These enhanced assessment methods are potentially applicable to other autoimmune-targeted organs.