Table 5 Number of in vitro studies using different growth factors

TGF-β1

48 (44%)

[50, 169–175, 189, 190, 192, 193, 195, 199, 202, 208, 210, 211, 213, 214, 216, 217, 220, 222–224, 228, 230–232, 234, 235, 244, 246, 249, 252–256, 258, 260–263, 266, 267, 270]

SOX-5

1 (1%)

[204]

TGF-β3

32 (29%)

[51, 162, 164, 168, 177, 181–184, 197, 200, 205–207, 218, 223–225, 227, 237, 239, 240, 245, 247, 248, 250, 251, 257, 259, 267, 268, 270]

SOX-6

1 (1%)

[204]

BMP-2

13 (12%)

[188, 202, 213, 219, 225–227, 229, 264, 265, 267, 270, 271]

WNT3A

1 (1%)

[171]

FGF

9 (8%)

[171, 183, 193, 197, 198, 213, 225, 246, 258]

IL-1

1 (1%)

[197]

IGF-1

7 (6%)

[179, 184, 192, 213, 224, 254, 265]

EGF

1(1%)

[193]

BMP-6

7 (6%)

[181, 216, 219, 224, 227, 250, 266]

OP-1

1 (1%)

[222]

TGF-β2

4 (4%)

[209, 219, 238, 270]

AA2P

1 (1%)

[266]

GDF-5

3 (3%[

[48, 186, 269]

IL-10

1 (1%)

[178]

SOX-9

2 (2%)

[204, 221]

TNFα

1 (1%)

[178]

BMP-4

2 (2%)

[227, 271]

PRP

1 (1%)

[242]

DEX

2 (2%)

[224, 266]

IWP2

1 (1%)

[171]

BMP-7

1 (1%)

[219]

None

15 (14%)

[52, 176, 180, 185, 187, 191, 194, 196, 201, 212, 215, 233, 236, 241, 243]

PDGF

1 (1%)

[202]