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Establishment and characterization of a cell line from a feline histiocytic sarcoma

Ryo Miyamoto1, Sena Kurita1, Hiroyuki Tani1

  • 1Department of Veterinary Clinical Pathology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo, 180-8602, Japan.

Veterinary Immunology and Immunopathology
|June 20, 2018
PubMed

Insights

A new feline histiocytic sarcoma (HS) cell line, FHS-1, was developed. This cell line retains key macrophage functions, offering potential for feline HS diagnostic and therapeutic research.

Area of Science:

  • Veterinary Oncology
  • Cell Biology
  • Immunology

Background:

  • Feline histiocytic sarcoma (HS) is an aggressive, uncommon tumor.
  • HS originates from dendritic cells or macrophages.

Purpose of the Study:

  • To establish and characterize a novel feline HS cell line, FHS-1.
  • To assess the functional properties and potential applications of the FHS-1 cell line.

Main Methods:

  • Establishment of the FHS-1 cell line from a feline HS case.
  • Immunohistochemical analysis for specific markers (vimentin, Iba-1, MHC class II, CD163).
  • Functional assays including α-naphthyl butyrate esterase staining, phagocytosis, and antigen uptake/processing.

Main Results:

  • FHS-1 cells expressed vimentin and Iba-1, but lacked MHC class II and CD163.
  • Positive α-naphthyl butyrate esterase activity, inhibited by sodium fluoride.
  • Demonstrated phagocytic and antigen uptake/processing capabilities, characteristic of dendritic cells/macrophages.

Conclusions:

  • FHS-1 represents a valuable feline HS cell line, retaining crucial macrophage functional characteristics despite altered marker expression.
  • This cell line is not susceptible to feline infectious peritonitis virus (FIPV) strain 79-1146.
  • FHS-1 holds promise for advancing research into feline HS diagnostics and therapeutics.

Keywords:
Cell lineCharacterizationFeline histiocytic sarcoma

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