Biotechnology Letters

, Volume 24, Issue 17, pp 1431–1436 | Cite as

Screening for antiproliferative effects of cellular components from lactic acid bacteria against human cancer cell lines

  • Ji Yeon Kim
  • Hee Jong Woo
  • Young-Suk Kim
  • Hyong Joo Lee


Whole cells, cytoplasms and peptidoglycans of ten different lactic acid bacteria (LAB) were tested for in vitro cytotoxicity on diverse cancer cell lines using the 3H-thymidine incorporation assay. The peptidoglycans and cytoplasm fractions, as well as heat-killed whole cells of LAB, had significant antiproliferative activities against several cancer cell lines. In particular, the cytoplasm fractions exhibited marked direct antiproliferative activities against colon and gastric cancer cell lines, whereas the peptidoglycans retarded growth of colon and bladder cancer cell lines. The cytoplasm fractions of Bifidobacterium longum and Lactococcus lactis ssp. lactis inhibited proliferation of two cancer cell lines by 50% at 33 and 23 μg ml−1 for SNUC2A (a human colon adenocarcinoma cell line) and 17 and 11 μg ml−1 for SNU-1 (a human gastric cancer cell line), respectively.

antiproliferative effect cytoplasm fraction lactic acid bacteria peptidoglycan tumor cell line 


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Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Ji Yeon Kim
    • 1
  • Hee Jong Woo
    • 2
  • Young-Suk Kim
    • 1
  • Hyong Joo Lee
    • 1
  1. 1.Department of Food Science and Technology and School of Agricultural BiotechnologySeoul National UniversitySuwonKorea
  2. 2.College of Veterinary MedicineSeoul National UniversitySuwonKorea

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