Table 4 Top 20 differentially expressed genes between HER2-low and HER2 0 disease.

From: Clinical, pathological, and PAM50 gene expression features of HER2-low breast cancer

Gene symbol

Association

Overall

HR-positive

TNBC

Score(d) (strength of relationship)

FDRa

Score(d) (strength of relationship)

FDRa

Score(d) (strength of relationship)

FDRa

ESR1

Higher in HER2-low

14.3

0

5.0

0

1.0

100

FOXA1

Higher in HER2-low

13.3

0

4.9

0

1.0

100

NAT1

Higher in HER2-low

12.3

0

4.1

0

−0.3

68.3

SLC39A6

Higher in HER2-low

11.6

0

4.0

0

−0.4

64.3

PGR

Higher in HER2-low

11.2

0

3.2

0

0.5

100

AR

Higher in HER2-low

10.6

0

0.4

100

ERBB2

Higher in HER2-low

10.0

0

5.2

0

1.7

100

MAPT

Higher in HER2-low

9.9

0

2.9

0

−0.2

68.3

MLPH

Higher in HER2-low

8.8

0

2.6

0

0.0

68.3

BCL2

Higher in HER2-low

8.2

0

2.5

0

0.0

68.3

CENPF

Lower in HER2-low

−7.0

0

−1.8

0

−1.0

64.3

EXO1

Lower in HER2-low

−7.1

0

−2.4

0

−1.2

64.3

ANLN

Lower in HER2-low

−7.4

0

−2.3

0

−0.4

64.3

ORC6L

Lower in HER2-low

−7.6

0

−2.3

0

−0.8

64.3

KNTC2

Lower in HER2-low

−7.8

0

−2.3

0

−0.7

64.3

CEP55

Lower in HER2-low

−7.8

0

−1.3

3.2

−1.1

64.3

PHGDH

Lower in HER2-low

−8.4

0

−1.7

0

−1.2

64.3

FOXC1

Lower in HER2-low

−8.4

0

−0.7

9.7

0.2

100

MKI67

Lower in HER2-low

−8.7

0

−2.4

0

−1.0

64.3

CCNE1

Lower in HER2-low

−9.6

0

−3.0

0

−0.9

64.3

  1. In the table only significantly subtype signatures, top-10 upregulated and top-10 downregulated genes for the overall population are reported, along with their corresponding result in the HR + and TNBC populations. Genes are italicized, as per standard formatting guidelines.
  2. HR hormone receptors, TNBC triple-negative breast cancer, FDR false-discovery rate.
  3. aSignificant if FDR < 5.0; Score(d): a T-statistic value that reflects a standardized change in expression and measures the strength of the relationship between gene expression and the HER2-low category (vs. HER2 0).