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Table 2 Immunohistochemical staining showing semiquantitative scores across primary tumors and corresponding 2D and 3D models

From: Establishment of a patient-derived 3D in vitro meningioma model in xeno-free hydrogel for clinical applications

Sample

Type

EMA

PR

Ki-67

SSTR2

GFAP

BC

Overall

BC

Best subclass

MO-38

T

+ 3

+ 1-+2

5%(10%)

+ 3

NS

MNG: 0.99

Ben: 0.99

2: 0.91

2D

+ 1

0-+1

95%(100%)

+ 2-+3

NS

NA

NA

NA

3D

+ 3

0

5%(10%)

+ 2

NS

MNG: 0.98

Ben: 0.77

2: 0.76

MO-39

T

+ 1-+2

+ 2-+3

2–5%(20%)

+ 3

NS

MNG: 0.99

Int: 0.76

A: 0.76

2D

+ 1

+ 2

15–30%

+ 3

NS

NA

NA

NA

3D

0-+1

+ 1

2–5%

0-+1

NS

MNG: 0.98

Ben: 0.91

1: 0.46

MO-40

T

+ 3

+ 1

2–10%(20%)

+ 2-+3

NS

MNG: 0.99

Ben: 0.99

1: 0.99

2D

0-+1

0

2–10%

+ 2

NS

NA

NA

NA

3D

+ 1

0

1–10%

+ 1

NS

MNG: 0.99

Ben: 0.98

3: 0.87

MO-41

T

+ 3

0

15–20%(30%)

+ 3

NS

MNG: 0.99

Ben: 0.99

1: 0.99

2D

+ 2

0

50–70%

+ 2

NS

NA

NA

NA

3D

+ 1

0

10–20%

+ 1-+2

NS

MNG: 0.98

Ben: 0.98

1: 0.98

MO-42

T

+ 3

+ 2

5–10%(20%)

+ 3

NS

MNG: 0.99

Ben: 0.89

2: 0.88

2D

+ 1

0-+1

20–40%

+ 1

NS

NA

NA

NA

3D

+ 3

+ 1

5–10%

+ 2–3

NS

MNG: 0.99

Ben: 0.99

2: 0.96

IOMM-Lee

2D

0

0

95–100%

0

NS

NA

NA

NA

in vivo

0

0

75–90%

0

NS

NA

NA

NA

3D

0

0

50–90%

0

NS

NA

NA

NA

  1. Notes: Staining scores: 0 = no staining, + 1 = weak staining, + 2 = moderate staining, and + 3 = strong staining. Scoring values and percentage presented as min to max for both assessors to display the range. Ki-67 is displayed as min-max between the assessors. Ki-67 highest score is shown in parenthesis for areas with a distinctly higher score (so-called “hot spots”). EMA: Epithelial membrane antigen; PR: Progesterone receptor, SSTR2: Somatostatin receptor 2, GFAP: Glial fibrillary acidic protein; NS: Non-specific; BC: Brain Classifier v12.8, NA: Not applicable, MNG: Meningioma, Ben: Benign, Int: Intermediate