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Table 1 Absolute concentrations of neoepitope biomarkers in PCLS supernatant from patients with PF

From: Nintedanib modulates type III collagen turnover in viable precision-cut lung slices from bleomycin-treated rats and patients with pulmonary fibrosis

 

C3M

PRO-C1

PRO-C3

PRO-C6

FBN-C

Mean (ng/mL)

± SEM

n

Mean (ng/mL)

± SEM

n

Mean (ng/mL)

± SEM

n

Mean (ng/mL)

± SEM

n

Mean (ng/mL)

± SEM

n

Controla

0.75

0.05

41

27.11

4.39

29

15.07

1.16

43

1.22

0.19

27

47.96

9.34

38

Nintedanib 0.01 µM

0.65

0.04

39

22.94

4.16

27

14.75

1.49

41

1.13

0.22

25

45.90

11.18

35

Nintedanib 0.03 µM

0.70

0.05

39

20.33

3.93

27

13.79

1.09

41

1.05

0.19

25

41.85

10.65

37

Nintedanib 0.1 µM

0.63

0.05

41

25.29

3.93

29

14.42

1.11

43

1.07

0.17

27

45.46

9.86

38

Nintedanib 0.3 µM

0.57*

0.04

41

22.46

3.99

29

13.77

1.17

43

1.19

0.19

27

44.52

9.72

38

Pirfenidone 100 µM

0.72

0.06

39

23.61

3.95

27

14.28

1.02

41

1.25

0.20

25

45.61

9.46

36

  1. aDMEM/F12 media containing antibiotics. Data are shown as mean extracellular matrix turnover marker concentration of all available supernatants of all incubated slices from all donors per group ± SD. C3M, PRO-C3 and FBN-C concentration was explored in (n) samples of 10 donors, PRO-C1 and PRO-C6 in (n) samples of 7 donors. Sufficient supernatant was not available to test all markers in some cases, so numbers vary. *P < 0.05 versus control. C3M, neo-epitope of MMP-9 mediated degradation of type III collagen; DMEM, Dulbecco’s modified Eagle’s medium/nutrient mixture; F-12, F-12 Ham; FBN-C, C-terminal of fibronectin; PCLS, precision-cut lung slices; PRO-C1 proteinase mediated release of the internal epitope in the N-terminal pro-peptide of type I collagen; PRO-C3, ADAMTS-2 mediated release of the N-terminal pro-peptide of type III collagen; PRO-C6, C-terminal of released C5 domain of type VI collagen α3 chain (endotrophin); SD, standard deviation; SEM, standard error of the mean