Table 5 Correlations of CINSARC classes with therapeutic response/vulnerability in Luminal B breast cancers.

From: The CINSARC signature predicts the clinical outcome in patients with Luminal B breast cancer

Therapies

Characteristics

N

CINSARC classes

p-value

Low-risk

High-risk

Chemotherapy

107-gene signature

No pCR-like

1587

663 (83%)

924 (75%)

1.43E−04

 

pCR-like

441

140 (17%)

301 (25%)

 

pCR

No pCR

124

49 (88%)

75 (80%)

0.270

 

pCR

26

7 (12%)

19 (20%)

 

Hormone therapy

E2F4-activation signature

Low

496

348 (43%)

148 (12%)

3.73E−57

 

High

1532

455 (57%)

1077 (88%)

 

CDK4/6 inhibitors

RBsig signature

Score

2028

0.01 (−0.9–1.6)

0.44 (−0.6–2.6)

1.57E−100

E2F regulon signature

Score

2028

0.11 (−0.6–0.6)

0.3 (−0.5–0.73)

5.36E−56

PARP inhibitors

HRD signature

Low

248

94 (94%)

154 (81%)

2.59E−03

 

High

42

6 (6%)

36 (19%)

 

Immune checkpoint inhibitorss

ICR signature

Score

2028

−0.33 (−2.31–2.6)

−0.21 (−1.8–3.1)

8.07E−04

TIS signature

Score

2028

−0.35 (−2.3–2.2)

−0.24 (−2.1–2.8)

2.68E−03

TLS signature

Score

2028

−0.32 (−2.2–1.8)

−0.17 (−3.2–2.3)

1.69E−05

IA ESCAT alterations

ERBB2 amplification1

No

764

305 (100%)

459 (98%)

0.156

 

Yes

8

1 (0%)

7 (2%)

 

PIK3CA mutation

No

575

219 (72%)

356 (76%)

0.151

(E542K, E545K/A, H1047R/L)

Yes

197

87 (28%)

110 (24%)

 

IIA ESCAT alterations

ESR1 mutation

No

772

306 (100%)

466 (100%)

(E380Q, Y537S/C/N, D538G)

Yes

0

0 (0%)

0 (0%)

 

PTEN loss2

No

766

305 (100%)

461 (99%)

0.411

 

Yes

6

1 (0%)

5 (1%)

 

IIB ESCAT alterations

AKT1 mutation

No

752

296 (97%)

456 (98%)

0.361

(E17K)

Yes

20

10 (3%)

10 (2%)

 

ERBB2 mutation3

No

761

302 (99%)

459 (98%)

1

 

Yes

11

4 (1%)

7 (2%)

 
  1. pCR: pathological complete response; 1: >= 6 copies; 2homozigous deletion, truncated mutations and kown inactivating missense mutations (e.g., R130Q/G); 3hotspot activating missense mutations (e.g., S310F/Y, L755S, V777L), inframe insertion exon 2 O (e.g., Y772_A775dup).