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. 2015 Jan 15;107(4):857–868. doi: 10.1007/s10482-015-0378-6

Table 2.

Apoptotic index, cytotoxic, adhesion, invasion activities and production of lipase, lecithinase and proteinase by S. haemolyticus strains

Strain no Apoptotic indexa (%) Cytotoxicity (%) Adhesion indexd(×106) Invasion indexe (%) Exoenzyme
24 h 48 h Cell-contactb Extracellularc L Le P
MPU Sh4 59.8 89.8 66.7 72.8 6.9 12.6 + + +
MPU Sh3 51.3 79.9 60.6 70.9 2.3 0.8
MPU Sh9 48.7 76.9 63.6 81.5 13.5 16.9 + +
MPU Sh15 48.1 62.9 56.0 61.2 2.1 0.2 +
MPU Sh27 47.2 69.1 54.9 39.6 8.6 0.6 +
MPU Sh11 46.2 63.9 60.6 69.1 8.4 6.4 + +
MPU Sh13 43.1 58.4 53.0 62.1 15.3 0.8 + +
MPU Sh8 42.9 71.1 57.6 81.5 2.3 0 + +
MPU Sh20 42.8 76.2 31.8 33.5 13.1 9.7 + +
MPU Sh29 42.1 62.8 51.2 71.1 0.7 0
MPU Sh10 41.9 73.4 65.1 69.1 7.3 0.03 +
MPU Sh17 41.8 61.6 31.8 68.9 9.1 0 +
MPU Sh12 41.7 71.3 57.6 79.6 1.3 0 +
MPU Sh5 41.6 79.5 57.6 77.7 0.8 10.4 + +
MPU Sh25 41.2 69.8 22.7 73.2 9.6 0.01 +
MPU Sh6 39.6 42.7 9.6 75.7 9.8 3.1 +
MPU Sh19 38.7 69.3 13.6 14.8 14.6 0.01 +
MPU Sh1 38.5 41.3 72.7 77.7 12.3 3.2 +
MPU Sh7 36.8 39.7 37.9 38.6 10.2 0
MPU Sh30 31.6 37.9 45.4 11.2 13.7 0
MPU Sh16 31.2 34.9 43.9 35.0 8.9 1.4
MPU Sh2 19.8 65.2 62.1 67.3 0.6 17.9 + +
MPU Sh22 14.5 28.9 36.4 24.7 1.1 0
MPU Sh24 9.1 21.3 37.9 13.0 11.8 0.07 +
MPU Sh14 6.7 21.3 45.5 25.7 13.6 0
MPU Sh28 4.2 6.9 37.9 16.8 0.4 0
MPU Sh21 3.1 4.8 19.7 26.7 8.3 0.01
MPU Sh18 3.1 9.3 25.7 13.8 0.2 0.04
MPU Sh23 1.9 3.9 25.8 42.8 0.9 0
MPU Sh26 1.2 2.2 34.8 21.2 8.4 0

The data are the means from two separate experiments in triplicate

L lipase, Le lecithinase (phospholipase), P proteinase

aPercentage of apoptotic cells

b,cPercentage of cytotoxicity was determined by NR assay

dMean number of associated (CFU) bacteria/1 × 105 HEp-2 cells

ePercentage of the number of internalized bacteria compared to the number of those adhered