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Table 2 E. coli adhesion patterns: cell line, tissue, host cell specificity

From: Adhesion patterns of commensal and pathogenic Escherichia coli from humans and wild animals on human and porcine epithelial cell lines

Adhesion pattern specificity Cell lines Diffusely distributed Micro-colonies Chains Various pattern
Cell line Caco-2 28 6 1 -
IPEC-J2 12 3 - -
5637 10 - - -
PK-15 1 - - -
Tissue Intestinal epithelium (Caco-2, IPEC-J2) 16 9 - 1
Urinary epithelium (5637, PK-15) 1 - - -
Host cell Human (Caco-2, 5637) 9 8 - 1
Porcine (IPEC-J2, PK-15) 3 3 - -
Unspecific All cell lines 8 20 3 12
  Other groups of cell lines 21 8 2 8
  1. Classified are isolates which adhered with a distinct pattern (diffusely distributed, microcolonies, chains) to at least one cell line (n = 172), and isolates with different adhesion patterns to the four cell lines (various pattern, n = 22). Non-adherent isolates (n = 88) were excluded. Most distinct pattern-forming isolates were diffusely distributed on at least one cell line (n = 109) followed by microcolony forming isolates (n = 57). “Other groups of cell lines” includes isolates with adhesion patterns on the following cell lines: 1) Caco-2 and 5637 and IPEC-J2; 2) Caco-2 and 5637 and PK-15; 3) Caco-2 and IPEC-J2 and PK-15; 4) 5637 and IPEC-J2 and PK-15; 5) Caco-2 and PK-15; 6) 5637 and IPEC-J2.