Korean J Vet Res.  2018 Jun;58(2):95-98. 10.14405/kjvr.2018.58.2.95.

Different invasion efficiencies of Brucella abortus wild-type and mutantsin RAW 264.7 and THP-1 phagocytic cells and HeLa non-phagocytic cells

Affiliations
  • 1Department of Infectious Diseases, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea. yoohs@snu.ac.kr
  • 2Department of Microbiology, Research Institute of Life Sciences, Gyeongsang National University School of Medicine, Jinju 52828, Korea.

Abstract

Brucellosis is one of the common zoonoses caused by Brucella abortus (B. abortus). However, little has been reported on factors affecting invasion of B. abortus into host cells. To investigate cell-type dependent invasion of B. abortus, phagocytic RAW 264.7 and THP-1 cells and non-phagocytic HeLa cells were infected with wild-type and mutant B. abortus, and their invasion efficiencies were compared. The invasion efficiencies of the strains were cell-type dependent. Wild-type B. abortus invasion efficiency was greater in phagocytic cells than in epithelial cells. The results also indicated that there are different factors involved in the invasion of B. abortus into phagocytic cells.

Keyword

Brucella abortus; cell invasion; mutants; non-phagocytes; phagocytes
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