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Histology & Digital Pathology

Tissue Microarrays (TMA)

TMA allows for the simultaneous analysis of progression of a disease, under identical and standardized conditions on a single glass slide. In this study, liver fibrosis was induced with TAA.

Aragen TAA-induced liver fibrosis mouse tissue microarray (TMA) layout with cores A1-D5 and fiducial marker

  • A1-A5: Normal water
  • B1-B5: 6 weeks TAA treatment
  • C1-C5: 9 weeks TAA treatment
  • D1-D5: 12 weeks TAA treatment

Histological analysis of TAA-induced liver fibrosis: alpha-SMA immunohistochemistry and Masson's trichrome staining at 6, 9 and 12 weeks versus normal water control

  • Livers from mice receiving TAA at 6, 9, and 12 weeks showed increased α-SMA expression
  • Livers from mice receiving TAA at 9 and 12 weeks showed increased collagen deposition and bridging fibrosis, a typical feature of F3 fibrosis

Bar charts of alpha-SMA expression and collagen deposition fold change in TAA-induced liver fibrosis at 6, 9 and 12 weeks versus normal water control