Table 1 Linear regression and correlation analyses of proteins with differential abundance in the invasive tumor front and inner tumor with clinicopathological variables of the cases used for LMD and LC-MS/MS

From: Combining discovery and targeted proteomics reveals a prognostic signature in oral cancer

Tumor area

Protein

Gene name

Uniprot ID

Abundance (ITF/Inner tumor ratio)

Clinicopathological data

Linear regression (P value)

Correlation coefficient (R)

R-squared

Neoplastic islands

Actin-related protein 2

ACTR2

P61160

−0.57

Second primary tumor

0.002

−0.7

0.4

Neoplastic islands

Cystatin-B

CSTB

P04080

−1.55

Treatment

0.0009

0.7

0.5

Neoplastic islands

Collagen alpha-2(I) chain

COL1A2

P08123

1.07

Treatment

0.001

0.7

0.4

Neoplastic islands

Leukotriene A-4 hydrolase

LTA4H

P09960

−0.83

Second primary tumor

0.001

−0.7

0.4

Neoplastic islands

Phosphoglycerate kinase 1

PGK1

P00558

−0.48

Disease-free survival

0.001

0.4

Neoplastic islands

Phosphoglycerate kinase 1

PGK1

P00558

−0.48

Second primary tumor

0.001

−0.7

0.4

Neoplastic islands

Protein NDRG1

NDRG1

Q92597

−1.47

Disease-free survival

0.001

0.4

Neoplastic islands

Protein S100-A8

S100A8

P05109

2.11

Second primary tumor

0.0003

−0.7

0.5

Neoplastic islands

Protein S100-A9

S100A9

P06702

2.35

Second primary tumor

0.0006

−0.7

0.5

Tumor stroma

Collagen alpha-1(VI) chain

COL6A1

P12109

0.534

Lymph node status

0.0006

0.7

0.5

Tumor stroma

Fascin

FSCN1

Q16658

−0.673

Poorly differentiated tumor (WHO)

2.34e-05

0.8

0.7

Tumor stroma

Integrin alpha-V

ITGAV

P06756

−1.674

Lymph node status

0.0014

0.7

0.5

Tumor stroma

Myoglobin

MB

P02144

2.901

Clinical stage

0.0015

0.7

0.5

Tumor stroma

Thrombospondin-2

THBS2

P35442

−0.712

Lymph node recurrence

0.0001

0.7

0.6

  1. Abundance = Log2 of the LFQ intensity ratio (ITF/Inner tumor); Treatment: surgery, or surgery and radiotherapy, or combination of surgery, radiation and chemotherapy; WHO: Histopathological Grading System
  2. ITF invasive tumor front