TY - JOUR
T1 - Assessment of variation in immunosuppressive pathway genes reveals TGFBR2 to be associated with prognosis of estrogen receptor-negative breast cancer after chemotherapy
AU - Lei, Jieping
AU - Rudolph, Anja
AU - Moysich, Kirsten B.
AU - Rafiq, Sajjad
AU - Behrens, Sabine
AU - Goode, Ellen L.
AU - Pharoah, Paul Pd
AU - Seibold, Petra
AU - Fasching, Peter A.
AU - Andrulis, Irene L.
AU - Kristensen, Vessela N.
AU - Couch, Fergus J.
AU - Hamann, Ute
AU - Hooning, Maartje J.
AU - Nevanlinna, Heli
AU - Eilber, Ursula
AU - Bolla, Manjeet K.
AU - Dennis, Joe
AU - Wang, Qin
AU - Lindblom, Annika
AU - Mannermaa, Arto
AU - Lambrechts, Diether
AU - Garcia-Closas, Montserrat
AU - Hall, Per
AU - Chenevix-Trench, Georgia
AU - Shah, Mitul
AU - Luben, Robert
AU - Haeberle, Lothar
AU - Ekici, Arif B.
AU - Beckmann, Matthias W.
AU - Knight, Julia A.
AU - Glendon, Gord
AU - Tchatchou, Sandrine
AU - Alnaes, Grethe I. Grenaker
AU - Borresen-Dale, Anne-Lise
AU - Nord, Silje
AU - Olson, Janet E.
AU - Hallberg, Emily
AU - Vachon, Celine
AU - Torres, Diana
AU - Ulmer, Hans-Ulrich
AU - Ruediger, Thomas
AU - Jager, Agnes
AU - van Deurzen, Carolien Hm
AU - Tilanus-Linthorst, Madeleine Ma
AU - Muranen, Taru A.
AU - Aittomaki, Kristiina
AU - Blomqvist, Carl
AU - Margolin, Sara
AU - Linn, Sabine
PY - 2015/2/10
Y1 - 2015/2/10
N2 - Introduction: Tumor lymphocyte infiltration is associated with clinical response to chemotherapy in estrogen receptor (ER) negative breast cancer. To identify variants in immunosuppressive pathway genes associated with prognosis after adjuvant chemotherapy for ER-negative patients, we studied stage I-III invasive breast cancer patients of European ancestry, including 9,334 ER-positive (3,151 treated with chemotherapy) and 2,334 ER-negative patients (1,499 treated with chemotherapy).Methods: We pooled data from sixteen studies from the Breast Cancer Association Consortium (BCAC), and employed two independent studies for replications. Overall 3,610 single nucleotide polymorphisms (SNPs) in 133 genes were genotyped as part of the Collaborative Oncological Gene-environment Study, in which phenotype and clinical data were collected and harmonized. Multivariable Cox proportional hazard regression was used to assess genetic associations with overall survival (OS) and breast cancer-specific survival (BCSS). Heterogeneity according to chemotherapy or ER status was evaluated with the log-likelihood ratio test.Results: Three independent SNPs in TGFBR2 and IL12B were associated with OS (P <10(-3)) solely in ER-negative patients after chemotherapy (267 events). Poorer OS associated with TGFBR2 rs1367610 (G > C) (per allele hazard ratio (HR) 1.54 (95% confidence interval (CI) 1.22 to 1.95), P = 3.08 x 10(-4)) was not found in ER-negative patients without chemotherapy or ER-positive patients with chemotherapy (P for interaction <10-3). Two SNPs in IL12B (r(2) = 0.20) showed different associations with ER-negative disease after chemotherapy: rs2546892 (G > A) with poorer OS (HR 1.50 (95% CI 1.21 to 1.86), P = 1.81 x 10(-4)), and rs2853694 (A > C) with improved OS (HR 0.73 (95% CI 0.61 to 0.87), P = 3.67 x 10(-4)). Similar associations were observed with BCSS. Association with TGFBR2 rs1367610 but not IL12B variants replicated using BCAC Asian samples and the independent Prospective Study of Outcomes in Sporadic versus Hereditary Breast Cancer Study and yielded a combined HR of 1.57 ((95% CI 1.28 to 1.94), P = 2.05 x 10(-5)) without study heterogeneity.Conclusions: TGFBR2 variants may have prognostic and predictive value in ER-negative breast cancer patients treated with adjuvant chemotherapy. Our findings provide further insights into the development of immunotherapeutic targets for ER-negative breast cancer.
AB - Introduction: Tumor lymphocyte infiltration is associated with clinical response to chemotherapy in estrogen receptor (ER) negative breast cancer. To identify variants in immunosuppressive pathway genes associated with prognosis after adjuvant chemotherapy for ER-negative patients, we studied stage I-III invasive breast cancer patients of European ancestry, including 9,334 ER-positive (3,151 treated with chemotherapy) and 2,334 ER-negative patients (1,499 treated with chemotherapy).Methods: We pooled data from sixteen studies from the Breast Cancer Association Consortium (BCAC), and employed two independent studies for replications. Overall 3,610 single nucleotide polymorphisms (SNPs) in 133 genes were genotyped as part of the Collaborative Oncological Gene-environment Study, in which phenotype and clinical data were collected and harmonized. Multivariable Cox proportional hazard regression was used to assess genetic associations with overall survival (OS) and breast cancer-specific survival (BCSS). Heterogeneity according to chemotherapy or ER status was evaluated with the log-likelihood ratio test.Results: Three independent SNPs in TGFBR2 and IL12B were associated with OS (P <10(-3)) solely in ER-negative patients after chemotherapy (267 events). Poorer OS associated with TGFBR2 rs1367610 (G > C) (per allele hazard ratio (HR) 1.54 (95% confidence interval (CI) 1.22 to 1.95), P = 3.08 x 10(-4)) was not found in ER-negative patients without chemotherapy or ER-positive patients with chemotherapy (P for interaction <10-3). Two SNPs in IL12B (r(2) = 0.20) showed different associations with ER-negative disease after chemotherapy: rs2546892 (G > A) with poorer OS (HR 1.50 (95% CI 1.21 to 1.86), P = 1.81 x 10(-4)), and rs2853694 (A > C) with improved OS (HR 0.73 (95% CI 0.61 to 0.87), P = 3.67 x 10(-4)). Similar associations were observed with BCSS. Association with TGFBR2 rs1367610 but not IL12B variants replicated using BCAC Asian samples and the independent Prospective Study of Outcomes in Sporadic versus Hereditary Breast Cancer Study and yielded a combined HR of 1.57 ((95% CI 1.28 to 1.94), P = 2.05 x 10(-5)) without study heterogeneity.Conclusions: TGFBR2 variants may have prognostic and predictive value in ER-negative breast cancer patients treated with adjuvant chemotherapy. Our findings provide further insights into the development of immunotherapeutic targets for ER-negative breast cancer.
KW - REGULATORY T-CELLS
KW - GENOME-WIDE ASSOCIATION
KW - TUMOR-INFILTRATING LYMPHOCYTES
KW - ANTITUMOR IMMUNITY
KW - SUPPRESSOR-CELLS
KW - PREDICT RESPONSE
KW - PROGRESSION
KW - ADJUVANT
KW - OUTCOMES
KW - SYSTEM
U2 - 10.1186/s13058-015-0522-2
DO - 10.1186/s13058-015-0522-2
M3 - Article
SN - 1465-542X
VL - 17
JO - Breast Cancer Research
JF - Breast Cancer Research
M1 - 18
ER -