STAT3 and PD-L1 are negatively correlated with ATM and have impact on the prognosis of triple-negative breast cancer patients with low ATM expression

© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature..

INTRODUCTION: Triple-negative breast cancer (TNBC) is known for its aggressive behaviors and lacking of effective treatment. Programmed cell death ligand-1 (PD-L1) inhibitor has just been approved for using in the management of advanced TNBC. To accurately screen TNBC sensitive to anti-PD-L1 treatment and to explore the feasibility of the ataxia-telangiectasia mutation protein (ATM) inhibitor combined with PD-L1 inhibitor, radiotherapy and chemotherapy, we focus on whether ATM participates in the regulation of PD-L1 and affects the prognosis of patients through c-Src, signal transducer and activator of transcription 1&3 (STAT1 and STAT3).

MATERIALS AND METHODS: We used immunohistochemical staining to explore the relationship of ATM with c-Src, STAT1, STAT3, PD-1/PD-L1, Tumor-infiltrating lymphocytes (TILs), as well as other clinicopathologic features in 86 pathological stage III TNBCs. Their impact on prognosis was also explored.

RESULTS: We found ATM expression was negatively correlated with STAT1, STAT3, PD-L1, TILs and CD8 + cells in TNBC. STAT1 positively correlated the expression of PD-L1. In TNBC with ATM low expression, STAT3 was an independent factor for improved prognosis, while PD-L1 was an independent negative prognostic factor. Furthermore, in low ATM group, the phosphorylation of tyrosine at position 419 of c-Src (p-c-src Y419) was correlated with the overexpression of STAT3.

CONCLUSION: Locally advanced TNBC with low ATM expression may be more likely to benefit from anti-PD-L1 inhibitors. The feasibility of ATM functional inhibitor combined with immune checkpoint blockade therapies in the treatment of TNBC is also worthy of further exploration. Our study suggests that STAT3 has different impacts on tumor progression in different tumors.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:196

Enthalten in:

Breast cancer research and treatment - 196(2022), 1 vom: 02. Nov., Seite 45-56

Sprache:

Englisch

Beteiligte Personen:

Song, Yuan-Ming [VerfasserIn]
Qian, Xiao-Long [VerfasserIn]
Xia, Xiao-Qing [VerfasserIn]
Li, Ya-Qing [VerfasserIn]
Sun, Yuan-Yuan [VerfasserIn]
Jia, Yu-Mian [VerfasserIn]
Wang, Jin [VerfasserIn]
Xue, Hui-Qin [VerfasserIn]
Gao, Guang-Shen [VerfasserIn]
Wang, Xiao-Zi [VerfasserIn]
Zhang, Xin-Min [VerfasserIn]
Guo, Xiao-Jing [VerfasserIn]

Links:

Volltext

Themen:

42HK56048U
ATM protein, human
Ataxia Telangiectasia Mutated Proteins
B7-H1 Antigen
Biomarkers, Tumor
CD274 protein, human
EC 2.7.11.1
Immune Checkpoint Inhibitors
Journal Article
Ligands
P-c-src Y419
Programmed Cell Death 1 Receptor
Programmed cell death ligand-1 (PD-L1)
STAT1 Transcription Factor
STAT3
STAT3 Transcription Factor
STAT3 protein, human
The ataxia-telangiectasia mutation gene (ATM)
Triple-negative breast cancer (TNBC)
Tyrosine

Anmerkungen:

Date Completed 12.10.2022

Date Revised 14.10.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s10549-022-06679-0

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM345735226