219P Relationship among PDL1, androgen receptor (AR) and tumour infiltrating lymphocytes (TILs) in early triple negative breast cancer

Sánchez-Cousido, L.F.; Franco, Emiliano Honrado; Guadarrama, Ó. Sanz; González, L. López; García-Palomo, A.; Flores, M. López; Piedra, M. Rojas; Silva, B. Távara; Sillero, I. Delgado; López, C. Castañón; Taín, P. Diz; Sánchez, Ángel Rodríguez; Mangudo, B. Nieto; López-González, A.

doi:10.1016/j.annonc.2020.08.341

Cited by 3 publications

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“…Whereas, mean CD3 was significantly lower in AR− versus AR+ (80.7% versus 93.3%, respectively, p = 0.007). On the other side, previous publications reported that CD8+ were more frequent in AR+ than AR− tumours [ 12 , 29 , 30 ], in contrast to our study which showed that neither CD8 nor CD4 were statistically different between AR+ and AR− tumours.…”

Section: Discussioncontrasting

confidence: 99%

Clinico-pathological relationship between androgen receptor and tumour infiltrating lymphocytes in triple negative breast cancer

Elghazawy¹,

Bakkach²,

Helal³

et al. 2021

ecancer

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Background Triple negative breast cancer (TNBC) is an aggressive subtype of breast cancer (BC) with ill-defined therapeutic targets. Androgen receptor (AR) and tumour-infiltrating lymphocytes (TILs) had a prognostic and predictive value in TNBC. The relationship between AR, TILs and clinical behaviour is still not fully understood. Methods Thirty-six TNBC patients were evaluated for AR (positive if ≥1% expression), CD3, CD4, CD8 and CD20 by immunohistochemistry. Stromal TILs were quantified following TILs Working Group recommendations. Lymphocyte-predominant breast cancer (LPBC) was defined as stromal TILs ≥ 50%, whereas lymphocyte-deficient breast cancer (LDBC) was defined as <50%. Results The mean age was 52.5 years and 27.8% were ≥60 years. Seven patients (21.2%) were AR+. All AR+ cases were postmenopausal (≥50 years old). LPBC was 32.2% of the whole cohort. Median TILs were 37.5% and 10% ( p = 0.1) and median CD20 was 20% and 7.5% ( p = 0.008) in AR− and AR+, respectively. Mean CD3 was 80.7% and 93.3% ( p = 0.007) and CD8 was 75% and 80.8% ( p = 0.41) in AR− and AR+, respectively. All patients who were ≥60 years old expressed CD20. LDBC was found to be significantly higher in N+ versus N− patients ( p = 0.03) with median TILs of 20% versus 50% in N+ versus N−, respectively ( p = 0.03). LDBC was associated with higher risk of lymph node (LN) involvement (odds ratio = 6; 95% CI = 1.05–34.21; p = 0.04). Conclusions AR expression was evident in older age (≥50 years). Median CD20 was higher in AR− TNBC, while mean CD3 was higher in AR+ tumours. LDBC was associated with higher risk of LN involvement. Larger studies are needed to focus on the clinical impact of the relation between AR and TILs in TNBC.

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Section: Discussioncontrasting

confidence: 99%

Clinico-pathological relationship between androgen receptor and tumour infiltrating lymphocytes in triple negative breast cancer

Elghazawy¹,

Bakkach²,

Helal³

et al. 2021

ecancer

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show abstract

“…Whereas, mean CD3 was signi cantly lower in AR-vs. AR+ (80.7% vs 93.3% respectively, p = 0.007). Previous publications reported that CD8 + were more frequent in AR + than ARtumors 11,27,28 . In contrast, neither CD8 nor CD4 were statistically different between AR + and AR-tumors, in our study.…”

Section: Discussionmentioning

confidence: 77%

Clinico-pathological relationship between androgen receptor (AR) and tumor infiltrating lymphocytes (TILs) in triple negative breast cancer (TNBC)

Elghazawy

Bakkach

Helal

et al. 2021

Preprint

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Background Triple negative breast cancer (TNBC) is an aggressive subtype of breast cancer (BC) with ill-defined therapeutic targets. Androgen receptor (AR) and tumor-infiltrating lymphocytes (TILs) had a prognostic and predictive value in TNBC. The relationship between AR, TILs and clinical behavior is still not fully understood. Methods Thirty-six TNBC patients were evaluated for AR (positive if ≥ 1% expression), CD3, CD4, CD8 and CD20 by immunohistochemistry. Stromal TILs were quantified following TILs Working Group recommendations. Lymphocyte-predominant breast cancer (LPBC) was defined as having stromal TILs ≥ 50%, whereas lymphocyte-deficient breast cancer (LDBC) was defined as < 50%. Results The mean age was 52.5 years and 27.8% were ≥ 60 years. Seven patients (21.2%) were AR+. All AR + cases were postmenopausal (≥ 50 years old). No statistical difference was found in median overall survival (OS) between AR- and AR + groups (31.5 vs. 25 months, p = 0.77). LPBC was 32.2%. Median TILs was 37.5% and 10% (p = 0.1) and median CD20 was 20% and 7.5% (p = 0.008) in AR- and AR+, respectively. Mean CD3 was 80.7% and 93.3% (p = 0.007) and CD8 was 75% and 80.8% (p = 0.41) in AR- and AR + respectively. All patients who were ≥ 60 years old expressed CD20. LDBC was found to be significantly higher in N + vs. N- patients (p = 0.03) with median TILs of 20% vs. 50% in N + vs. N-, respectively (p = 0.03). LDBC was associated with higher risk of lymph node involvement (OR = 6, 95% CI = 1.05–34.21, p = 0.04). Conclusions AR expression was evident in older age (≥ 50 years). Median CD20 was higher in AR- TNBC, while mean CD3 was higher in AR + tumors. LDBC was associated with higher risk of lymph node involvement. Larger studies are needed to focus on the clinical impact of the relation between AR and TILs in TNBC.

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Prognostic value of programmed death ligand-1 expression in breast carcinomas

et al. 2022

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219P Relationship among PDL1, androgen receptor (AR) and tumour infiltrating lymphocytes (TILs) in early triple negative breast cancer

Cited by 3 publications

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Clinico-pathological relationship between androgen receptor and tumour infiltrating lymphocytes in triple negative breast cancer

Clinico-pathological relationship between androgen receptor and tumour infiltrating lymphocytes in triple negative breast cancer

Clinico-pathological relationship between androgen receptor (AR) and tumor infiltrating lymphocytes (TILs) in triple negative breast cancer (TNBC)

Prognostic value of programmed death ligand-1 expression in breast carcinomas

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