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Table 3 Protein serum and plasma levels and ratio stability.

From: Determination of temporal reproducibility and variability of cancer biomarkers in serum and EDTA plasma samples using a proximity extension assay

Protein

sNPXa

pNPXb

LOD NPXc

pNPX below LOD (%)d

sNPX below LOD (%)e

Mean ratiof

CV% ratiog

Olink within rangeh

Correla-tioni

Concentration effect j

Adenosine deaminase (ADA)

5.73

6.02

0.68

0

0

0,71

25,39

Yes

0.88

No

Adhesion G-protein coupled receptor G1 (ADGRG1)

2.95

2.67

0.68

0

0

1,21

10,20

Yes

0.97

No

Angiopoietin-1 (ANGPT1)

9.67

8.17

 − 0.01

0

0

2,50

29,41

Yes

0.72

Yes

Angiopoietin-2 (ANGPT2)

6.87

6.78

0.33

0

0

1,13

19,77

Yes

0.88

No

Arginase-1 (ARG1)

4.60

4.23

4.32

50

33.33

1,42

49,43

Yes

0.68

No

Carbonic anhydrase 9 (CAIX)

6.14

5.87

1.04

0

0

1,20

5,69

Yes

0.99

No

Caspase-8 (CASP-8)

4.45

5.35

1.56

0

0

0,57

37,88

No

0.34

No

C–C motif chemokine 17 (CCL17)

10.93

10.19

1.35

0

0

1,47

40,64

No

0.70

No

C–C motif chemokine 19 (CCL19)

11.73

11.77

1.40

0

0

1,06

12,44

Yes

0.92

No

C–C motif chemokine 20 (CCL20)

8.58

9.18

1.12

0

0

0,62

16,25

Yes

0.98

No

C–C motif chemokine 23 (CCL23)

11.39

11.21

0.61

0

0

1,12

10,98

Yes

0.99

Yes

C–C motif chemokine 3 (CCL3)

7.65

7.05

0.48

0

0

1,42

14,97

Yes

0.73

No

C–C motif chemokine 4 (CCL4)

7.61

6.95

0.52

0

0

1,64

20,66

Yes

0.81

No

Natural killer cell receptor 2B4 (CD244)

6.93

7.17

1.67

0

0

0,76

22,67

Yes

0.70

No

CD27 antigen (CD27)

8.74

8.67

0.63

0

0

1,07

6,35

Yes

0.93

No

T-cell-specific surface glycoprotein CD28 (CD28)

0.87

0.76

0.29

8.33

0

1,07

12,70

Yes

0.81

No

T-cell surface glycoprotein CD4 (CD4)

4.37

4.22

0.62

0

0

1,06

9,17

No

0.95

No

CD40L receptor (CD40)

10.75

11.17

0.28

0

0

0,75

17,22

No

0.86

No

CD40 ligand (CD40-L)

7.73

6.75

2.18

0

0

1,42

110,74

No

0.50

No

T-cell surface glycoprotein CD5 (CD5)

6.41

6.39

0.56

0

0

1,03

6,61

Yes

0.91

No

CD70 antigen (CD70)

4.54

3.77

0.51

0

0

1,71

10,19

Yes

0.90

No

CD83 antigen (CD83)

3.24

3.11

0.44

0

0

1,06

9,06

Yes

0.80

No

T-cell surface glycoprotein CD8 alpha chain (CD8A)

10.03

10.04

0.21

0

0

1,01

8,44

Yes

0.97

No

Cytotoxic and regulatory T-cell molecule (CRTAM)

6.13

5.82

1.23

0

0

1,25

8,81

Yes

0.97

No

Macrophage colony-stimulating factor 1 (CSF-1)

10.53

10.50

1.35

0

0

1,04

5,71

Yes

0.91

No

Fractalkine (CX3CL1)

4.74

4.32

0.43

0

0

1,28

8,71

Yes

0.99

No

C-X-C motif chemokine 1 (CXCL1)

10.35

10.31

0.99

0

0

1,04

61,37

Yes

0.70

Yes

C-X-C motif chemokine 10 (CXCL10)

10.19

10.56

1.01

0

0

0,85

19,48

Yes

0.94

No

C-X-C motif chemokine 11 (CXCL11)

9.59

10.37

0.77

0

0

0,61

51,33

No

0.76

No

Stromal cell-derived factor 1 (CXCL12)

1.92

2.28

0.92

0

0

0,81

17,62

Yes

0.84

No

C-X-C motif chemokine 13 (CXCL13)

9.81

9.60

1.43

0

0

1,08

23,29

Yes

0.94

Yes

C-X-C motif chemokine 5 (CXCL5)

12.59

12.37

1.39

0

0

1,07

48,26

No

0.59

No

C-X-C motif chemokine 9 (CXCL9)

8.31

8.47

0.76

0

0

0,96

10,60

Yes

0.80

No

Decorin (DCN)

4.89

4.52

0.92

0

0

1,30

8,46

Yes

0.66

No

Pro-epidermal growth factor (EGF)

9.28

8.45

0.69

0

0

1,29

123,45

No

0.36

No

Tumor necrosis factor ligand superfamily member 6 (FASLG)

7.07

7.05

0.69

0

0

1,05

8,75

Yes

0.92

No

Fibroblast growth factor 2 (FGF2)#

0.43

2.74

0.53

8.33

75

NA

NA

NA

NA

NA

Galectin-1 (Gal-1)

7.08

7.11

1.19

0

0

0,96

8,27

Yes

0.88

No

Galectin-9 (Gal-9)

8.80

8.78

0.24

0

0

1,03

5,89

Yes

0.92

No

Granzyme A (GZMA)

7.47

7.35

0.53

0

0

1,05

19,82

Yes

0.74

No

Granzyme B (GZMB)

3.40

4.01

0.28

0

0

0,79

53,05

Yes

0.57

No

Granzyme H (GZMH)

4.56

4.76

1.46

0

0

0,89

19,02

Yes

0.88

No

Hepatocyte growth factor (HGF)

10.22

9.45

0.65

0

0

1,71

26,41

Yes

0.86

No

Heme oxygenase 1 (HO-1)

12.66

12.50

4.41

0

0

1,04

8,04

Yes

0.97

No

ICOS ligand (ICOSLG)

6.25

5.74

0.39

0

0

1,40

7,82

Yes

0.83

No

Interferon gamma (IFN-gamma)*

7.82

7.64

1.92

0

0

1,07

9,81

NA

0.99

No

Interleukin-1 alpha (IL-1 alpha)#

0.22

0.48

2.24

100

100

0,95

36,09

NA

NA

NA

Interleukin-10 (IL10)

4.49

4.39

1.67

0

0

1,15

13,41

Yes

0.95

No

Interleukin-12 (IL12)

7.59

7.44

1.50

0

0

1,12

10,68

Yes

0.95

No

Interleukin-12 receptor subunit beta-1 (IL12RB1)

2.52

2.49

1.26

0

0

1,05

12,94

Yes

0.90

No

Interleukin-13 (IL13)#

1.63

1.60

2.49

91.67

91.67

NA

NA

NA

NA

NA

Interleukin-15 (IL15)*

5.43

5.29

2.29

0

0

1,12

9,18

NA

0.91

No

Interleukin-18 (IL18)

10.05

10.20

1.16

0

0

0,95

18,08

Yes

0.93

No

Interleukin-2 (IL2)#

1.35

1.30

2.27

100

100

NA

NA

NA

NA

NA

Interleukin-33 (IL33)#

 − 0.57

 − 0.42

 − 0.06

91.67

100

NA

NA

NA

NA

NA

Interleukin-4 (IL4)

1.05

1.36

1.08

16.67

50

0,86

28,44

Yes

0.36

No

Interleukin-5 (IL5)#

1.03

0.99

1.44

66.67

75

NA

NA

NA

NA

NA

Interleukin-6 (IL6)

4.82

4.87

1.05

0

0

1,08

10,86

Yes

1.00

No

Interleukin-7 (IL7)

6.80

6.13

0.71

0

0

1,62

47,62

Yes

0.53

No

Interleukin-8 (IL8)

8.07

6.99

2.24

0

0

2,70

37,77

Yes

0.92

No

Killer cell immunoglobulin-like receptor 3DL1 (KIR3DL1)*

2.46

2.50

1.29

0

8.33

0,98

16,28

NA

0.96

No

Natural killer cells antigen CD94 (KLRD1)

7.19

7.03

0.25

0

0

1,16

6,72

Yes

0.99

No

Lymphocyte activation gene 3 protein (LAG3)*

5.81

5.50

1.05

0

0

1,22

7,69

NA

0.97

No

Lysosome-associated membrane glycoprotein 3 (LAMP3)

5.38

5.26

0.66

0

0

1,14

7,93

Yes

0.97

No

Latency-associated peptide transforming growth factor beta-1 (LAP TGF-beta-1)

10.26

10.10

1.67

0

0

1,01

26,78

No

0.87

No

C–C motif chemokine 2 (MCP-1)

12.01

11.24

0.72

0

0

1,92

20,32

No

0.80

No

C–C motif chemokine 8 (MCP-2)

8.96

8.38

0.79

0

0

1,51

23,85

Yes

0.76

No

C–C motif chemokine 7 (MCP-3)

3.12

2.26

0.91

0

0

1,86

21,03

Yes

0.71

No

C–C motif chemokine 13 (MCP-4)

11.19

10.57

0.39

0

0

1,53

35,37

Yes

0.53

No

MHC class I polypeptide-related sequence A/B (MIC-A/B)

6.16

6.03

0.78

0

0

1,07

7,49

Yes

0.93

No

Macrophage metalloproteinase-12 (MMP12)

8.97

8.43

0.42

0

0

1,31

20,91

Yes

0.97

Yes

Matrix metalloproteinase-7 (MMP7)

13.04

11.49

4.09

0

0

3,01

19,69

No

0.55

No

Mucin-16 (MUC-16)*

5.59

5.52

0.20

0

0

1,04

8,40

NA

0.99

No

Natural cytotoxicity triggering receptor (NCR1)

4.09

4.16

1.34

0

0

1,10

13,09

Yes

0.89

No

Nitric oxide synthase, endothelial (NOS3)

2.55

3.34

1.97

0

16.67

0,63

30,82

Yes

0.72

No

Programmed cell death protein 1 (PDCD1)

5.67

5.65

2.53

0

0

1,00

8,44

Yes

0.96

No

Platelet-derived growth factor subunit B (PDGF subunit B)

10.65

10.38

0.73

0

0

1,26

28,30

Yes

-0.52

Yes

Programmed cell death 1 ligand 1 (PD-L1)

6.74

7.03

1.85

0

0

0,84

13,84

Yes

0.93

No

Programmed cell death 1 ligand 2 (PD-L2)

3.72

3.61

0.93

0

0

1,13

6,24

Yes

0.96

No

Placenta growth factor (PGF)

9.17

9.09

0.75

0

0

1,09

7,17

Yes

0.94

No

Pleiotrophin (PTN)

1.47

2.93

1.14

0

33.33

0,41

41,52

Yes

0.44

No

Angiopoietin-1 receptor (TIE2)

7.77

7.65

0.54

0

0

1,05

6,87

Yes

0.97

No

Tumor necrosis factor (TNF)*

5.23

5.20

2.28

0

0

1,00

12,36

NA

0.87

No

Tumor necrosis factor receptor superfamily member 12A (TNFRSF12A)

6.33

6.13

-0.10

0

0

1,27

6,94

No

0.99

No

Tumor necrosis factor receptor superfamily member 21 (TNFRSF21)

7.86

7.77

-0.39

0

0

1,10

6,39

Yes

0.95

No

Tumor necrosis factor receptor superfamily member 4 (TNFRSF4)

6.89

6.78

0.82

0

0

1,13

8,21

Yes

0.96

No

Tumor necrosis factor receptor superfamily member 9 (TNFRSF9)

7.44

7.19

0.81

0

0

1,13

5,58

Yes

0.99

No

Tumor necrosis factor ligand superfamily member 14 (TNFSF14)

7.07

6.20

0.70

0

0

2,07

39,87

Yes

0.80

No

TNF-related apoptosis-inducing ligand (TRAIL)

8.48

8.12

0.53

0

0

1,32

10,56

Yes

0.73

No

Tumor necrosis factor ligand superfamily member 12 (TWEAK)

8.58

8.20

-0.06

0

0

1,46

23,29

Yes

0.64

No

Vascular endothelial growth factor A (VEGFA)

10.80

10.33

0.37

0

0

1,45

24,07

Yes

0.93

No

Vascular endothelial growth factor receptor 2 (VEGFR-2)

8.20

8.12

0.54

0

0

1,07

6,52

Yes

0.92

No

  1. Values highlighted in bold indicate criteria not fulfilled
  2. aMedian serum normalized protein expression (NPX) value
  3. bMedian plasma NPX value
  4. cLimit of detection (LOD) reported as NPX value
  5. dPlasma samples below LOD
  6. eSerum samples below LOD
  7. fGeometric mean of serum to plasma ratio
  8. gGeometric coefficient of variation (CV) in percentage
  9. hRatio reported by Olink [13] within range observed in our study
  10. iCorrelation coefficient between serum and plasma NPX
  11. jAssociation between concentration and protein ratio on Passing-Bablok regression or Bland–Altman plots
  12. gjValues not fulfilling the four criteria indicated in bold
  13. #Not evaluated because of to many samples below LOD
  14. *Olink did not report serum-plasma ratios