TY - JOUR
T1 - Dose-Response Association of CD8+ Tumor-Infiltrating Lymphocytes and Survival Time in High-Grade Serous Ovarian Cancer
AU - Goode, Ellen L
AU - Block, Matthew S
AU - Kalli, Kimberly R
AU - Vierkant, Robert A
AU - Chen, Wenqian
AU - Fogarty, Zachary C
AU - Gentry-Maharaj, Aleksandra
AU - Tołoczko, Aleksandra
AU - Hein, Alexander
AU - Bouligny, Aliecia L
AU - Jensen, Allan
AU - Osorio, Ana
AU - Hartkopf, Andreas
AU - Ryan, Andy
AU - Chudecka-Głaz, Anita
AU - Magliocco, Anthony M
AU - Hartmann, Arndt
AU - Jung, Audrey Y
AU - Gao, Bo
AU - Hernandez, Brenda Y
AU - Fridley, Brooke L
AU - McCauley, Bryan M
AU - Kennedy, Catherine J
AU - Wang, Chen
AU - Karpinskyj, Chloe
AU - de Sousa, Christiani B
AU - Tiezzi, Daniel G
AU - Wachter, David L
AU - Herpel, Esther
AU - Taran, Florin Andrei
AU - Modugno, Francesmary
AU - Nelson, Gregg
AU - Lubiński, Jan
AU - Menkiszak, Janusz
AU - Alsop, Jennifer
AU - Lester, Jenny
AU - García-Donas, Jesús
AU - Nation, Jill
AU - Hung, Jillian
AU - Palacios, José
AU - Rothstein, Joseph H
AU - Kelley, Joseph L
AU - de Andrade, Jurandyr M
AU - Robles-Díaz, Luis
AU - Intermaggio, Maria P
AU - Widschwendter, Martin
AU - Beckmann, Matthias W
AU - Ruebner, Matthias
AU - Høgdall, Estrid
AU - Kjaer, Susanne K
AU - Ovarian Tumor Tissue Analysis (OTTA) Consortium
PY - 2017/12/1
Y1 - 2017/12/1
N2 - IMPORTANCE: Cytotoxic CD8+ tumor-infiltrating lymphocytes (TILs) participate in immune control of epithelial ovarian cancer; however, little is known about prognostic patterns of CD8+ TILs by histotype and in relation to other clinical factors.OBJECTIVE: To define the prognostic role of CD8+ TILs in epithelial ovarian cancer.DESIGN, SETTING, AND PARTICIPANTS: This was a multicenter observational, prospective survival cohort study of the Ovarian Tumor Tissue Analysis Consortium. More than 5500 patients, including 3196 with high-grade serous ovarian carcinomas (HGSOCs), were followed prospectively for over 24 650 person-years.EXPOSURES: Following immunohistochemical analysis, CD8+ TILs were identified within the epithelial components of tumor islets. Patients were grouped based on the estimated number of CD8+ TILs per high-powered field: negative (none), low (1-2), moderate (3-19), and high (≥20). CD8+ TILs in a subset of patients were also assessed in a quantitative, uncategorized manner, and the functional form of associations with survival was assessed using penalized B-splines.MAIN OUTCOMES AND MEASURES: Overall survival time.RESULTS: The final sample included 5577 women; mean age at diagnosis was 58.4 years (median, 58.2 years). Among the 5 major invasive histotypes, HGSOCs showed the most infiltration. CD8+ TILs in HGSOCs were significantly associated with longer overall survival; median survival was 2.8 years for patients with no CD8+ TILs and 3.0 years, 3.8 years, and 5.1 years for patients with low, moderate, or high levels of CD8+ TILs, respectively (P value for trend = 4.2 × 10−16). A survival benefit was also observed among women with endometrioid and mucinous carcinomas, but not for those with the other histotypes. Among HGSOCs, CD8+ TILs were favorable regardless of extent of residual disease following cytoreduction, known standard treatment, and germline BRCA1 pathogenic mutation, but were not prognostic for BRCA2 mutation carriers. Evaluation of uncategorized CD8+ TIL counts showed a near-log-linear functional form.CONCLUSIONS AND RELEVANCE: This study demonstrates the histotype-specific nature of immune infiltration and provides definitive evidence for a dose-response relationship between CD8+ TILs and HGSOC survival. That the extent of infiltration is prognostic, not merely its presence or absence, suggests that understanding factors that drive infiltration will be the key to unraveling outcome heterogeneity in this cancer.
AB - IMPORTANCE: Cytotoxic CD8+ tumor-infiltrating lymphocytes (TILs) participate in immune control of epithelial ovarian cancer; however, little is known about prognostic patterns of CD8+ TILs by histotype and in relation to other clinical factors.OBJECTIVE: To define the prognostic role of CD8+ TILs in epithelial ovarian cancer.DESIGN, SETTING, AND PARTICIPANTS: This was a multicenter observational, prospective survival cohort study of the Ovarian Tumor Tissue Analysis Consortium. More than 5500 patients, including 3196 with high-grade serous ovarian carcinomas (HGSOCs), were followed prospectively for over 24 650 person-years.EXPOSURES: Following immunohistochemical analysis, CD8+ TILs were identified within the epithelial components of tumor islets. Patients were grouped based on the estimated number of CD8+ TILs per high-powered field: negative (none), low (1-2), moderate (3-19), and high (≥20). CD8+ TILs in a subset of patients were also assessed in a quantitative, uncategorized manner, and the functional form of associations with survival was assessed using penalized B-splines.MAIN OUTCOMES AND MEASURES: Overall survival time.RESULTS: The final sample included 5577 women; mean age at diagnosis was 58.4 years (median, 58.2 years). Among the 5 major invasive histotypes, HGSOCs showed the most infiltration. CD8+ TILs in HGSOCs were significantly associated with longer overall survival; median survival was 2.8 years for patients with no CD8+ TILs and 3.0 years, 3.8 years, and 5.1 years for patients with low, moderate, or high levels of CD8+ TILs, respectively (P value for trend = 4.2 × 10−16). A survival benefit was also observed among women with endometrioid and mucinous carcinomas, but not for those with the other histotypes. Among HGSOCs, CD8+ TILs were favorable regardless of extent of residual disease following cytoreduction, known standard treatment, and germline BRCA1 pathogenic mutation, but were not prognostic for BRCA2 mutation carriers. Evaluation of uncategorized CD8+ TIL counts showed a near-log-linear functional form.CONCLUSIONS AND RELEVANCE: This study demonstrates the histotype-specific nature of immune infiltration and provides definitive evidence for a dose-response relationship between CD8+ TILs and HGSOC survival. That the extent of infiltration is prognostic, not merely its presence or absence, suggests that understanding factors that drive infiltration will be the key to unraveling outcome heterogeneity in this cancer.
KW - BRCA2 Protein/genetics
KW - CD8 Antigens/metabolism
KW - Carcinoma, Ovarian Epithelial/drug therapy
KW - Cohort Studies
KW - Cystadenocarcinoma, Serous/genetics
KW - Female
KW - Humans
KW - Lymphocytes, Tumor-Infiltrating/immunology
KW - Middle Aged
KW - Mutation
KW - Neoplasm Grading
KW - Ovarian Neoplasms/genetics
KW - Prospective Studies
KW - Survival Analysis
KW - Treatment Outcome
U2 - 10.1001/jamaoncol.2017.3290
DO - 10.1001/jamaoncol.2017.3290
M3 - Journal article
C2 - 29049607
SN - 2374-2437
VL - 3
SP - e173290
JO - JAMA Oncology
JF - JAMA Oncology
IS - 12
ER -