Table 2 A summarized list of results of Kaplan–Meier plot tool for 53 potential genes categorized based on their stages and literature screening references.

From: Systems biology comprehensive analysis on breast cancer for identification of key gene modules and genes associated with TNM-based clinical stages

Stages

Rank

Gene symbol

Expression

Overall P value

Related cancers

References

Stage I

1

SMC4

Downregulated

1.7e−14

ER-positive and ER-negative breast cancer

38

2

IRF7

Downregulated

0.1861

Suppressor of an innate immune pathway in breast cancer

38,39

3

POSTN

Downregulated

0.3289

A factor in preventing and treating breast cancer

38,40

4

ABAT

Downregulated

8.9e−16

ER-positive and ER-negative breast cancer

41

5

LMOD1

Upregulated

0.1821

Involved in the development of breast cancer

42

6

TRIM2

Upregulated

0.7228

Invasive and basal-like breast cancer

43,44

7

CHRDL1

Upregulated

2.4e−8

Malignant breast cancer

45

8

MFGE8

Upregulated

0.1294

Triple-negative and ER + breast cancers

46,47

9

GLRX5

Downregulated

0.0001

Breast cancer

Neurological disorders such as Parkinson’s disease and those associated with ageing

48

10

ELF5

Upregulated

0.1522

TNM staging system for all types of breast cancer and metastasis in breast cancer

49,50

11

CSN2

Upregulated

1.0e−8

Invasive breast cancer triple-negative breast cancer

51,52

12

PRLR

Downregulated

7.7e−5

Progression of breast carcinoma

53,54,55

13

PPAP2B

Upregulated

9.4e−10

Coronary artery disease

Breast cancer

Tumor growth in breast cancer

56,57,58,59

14

FZD2

Downregulated

3.3e−11

Breast cancer

60,61,62

15

FZD7

Upregulated

0.6871

Breast cancer

60,61,62

16

GPC4

Downregulated

0.0004

In both MCF-7 (human breast adenocarcinoma) and MCF-10F (normal-like breast cancer)

63,64,65

17

CERS2

Downregulated

0.2238

Less invasive breast cancer

66,67,68

18

UGCG

Downregulated

1.1e−10

Triple-negative BC

ER-negative BC tumors

Lung metastases

69,70,71,72,73

19

LIPE

Upregulated

0.0051

Prognostic cofactor in BC Cancer lipolysis

74,75,76

20

PLIN1

Upregulated

2.6e−5

HER2 tumors

Breast cancer

Triple-negative breast cancer

77,77,78,79

Stage II

1

CCNB2

Downregulated

 < 1e−16

Basal-like, HER2, and luminal breast cancers

80,81,82,83

2

OAS3

Downregulated

0.697

Mutated gene in breast cancer

84,85,86

3

IRF7

Downregulated

0.1861

Suppressor of an innate immune pathway in breast cancer

38,39

4

OAS1

Downregulated

0.5676

Development of various cancer types like breast cancer

85,86,87

5

CDKN1C

Upregulated

1.9e−5

Breast tumors

88,89

6

PEG3

Upregulated

0.0029

Several cancers such as breast and ovary cancers

90,91

7

PHLDA2

Downregulated

4.0e−10

PRL treatment

Tumor progression

92,93

8

PLAGL1

Upregulated

0.3823

Breast cancer patients under radiotherapy treatment

94

9

SGCE

Upregulated

0.0293

Progression of breast cancer invasion in terms of stromal changes

95

10

SLC22A18

Downregulated

3.2e−8

Breast cancer

96

11

SERPING1

Upregulated

1.3e−8

Breast carcinoma cells

97

12

ACTA2

Upregulated

0.6126

Metastasis of breast cancer cells Dimerization of epidermal growth factor receptor (EGFR) and HER2

98,99,100

13

LCP2

Downregulated

0.7828

Predicting the development of secondary lymphedema followed by breast cancer surgery

101,102

14

ABCG1

Downregulated

0.2418

High expression level of ABCG1 transporters in MCF-7 cells

103,104

15

ZFP36L1

Upregulated

0.0507

In all types of breast cancer

105

16

BICC1

Upregulated

1.0e−10

Cystic renal dysplasia

embryonic node, kidney, liver, and pancreas in the mouse

Basal-like breast tumors

106,107

17

SSPN

Upregulated

0.0007

Several types of cancer, including breast invasive cancer

108,109,110

Stage III

1

FEN1

Downregulated

 < 1e−16

High stages of breast cancer

Inhibition of the tumor growth

111,112,113

2

ADH1B

Upregulated

0.0068

Risk factors for breast cancer

114,115,116

3

IRF7

Downregulated

0.1861

Suppressor of an innate immune pathway in breast cancer

38,39

4

ACTA2

Upregulated

0.6126

Metastasis of breast cancer cells Dimerization of epidermal growth factor receptor (EGFR) and HER2

98,99,100

5

CLDN5

Upregulated

9.4e−6

In both breast tumor stromal (BTS) and prostate tumor stromal (PTS)

117,118

6

SLC31A1

Downregulated

0.4854

Progression of breast cancer

119,120

7

FBLN1

Upregulated

3.6e−5

In several types of cancer, including breast cancer

121,122

8

MFAP4

Upregulated

5.8e−9

In cell adhesion, motility, invasion, and metastasis of BC

95,123,124

9

COL1A2

Downregulated

0.4121

High expression level at higher stages of breast cancer

125,126,127

10

ASPN

Downregulated

0.2608

Upregulated expression in breast cancer

128,129

Stage IV

1

NUSAP1

Upregulated

< 1e−16

A potential biomarker clinically correlated with breast cancer

130,131

2

COL6A2

Downregulated

0.0038

Important role in breast cancer development

132,133

3

HIST1H2BD

Upregulated

0.2745

ER-positive breast cancer

In breast cancer development

42,134

4

HIST1H2BH

Upregulated

0.0006

ER-positive breast cancer

In breast cancer development

42,134

5

HIST1H2BK

Upregulated

8.6e−8

ER-positive breast cancer

In breast cancer development

42,134

6

HIST2H2BE

Upregulated

0.1077

ER-positive breast cancer

In breast cancer development

42,134

Integrated group

1

KIF11

Upregulated

 < 1e−16

Triple-negative breast cancer

135,136

2

IRF7

Upregulated

0.1861

Suppressor of an innate immune pathway in breast cancer

38,39

3

OAS1

Downregulated

0.5676

Development of various cancer types like breast cancer

85,86,87

4

OAS3

Downregulated

0.697

Mutated gene in breast cancer

84,85,86

5

SGCE

Upregulated

0.0293

Progression of breast cancer invasion in terms of stromal changes

95

6

ALDH7A1

Downregulated

0.0208

Breast cancer

Potent marker in different types of cancer like prostate cancer

137,138,139

7

ABCG1

Downregulated

0.2418

Breast cancer

140

8

C1S

Downregulated

1.2e−6

HER2-positive and basal-like breast cancer

140