Browsing by Author "Fridley, Brooke L."

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    Racial Differences in the Tumor Immune Landscape and Survival of Women with High-Grade Serous Ovarian Carcinoma
    (American Association for Cancer Research, 2022) Peres, Lauren C.; Colin-Leitzinger, Christelle; Sinha, Sweta; Marks, Jeffrey R.; Conejo-Garcia, Jose R.; Alberg, Anthony J.; Bandera, Elisa V.; Berchuck, Andrew; Bondy, Melissa L.; Christensen, Brock C.; Cote, Michele L.; Doherty, Jennifer Anne; Moorman, Patricia G.; Peters, Edward S.; Segura, Carlos Moran; Nguyen, Jonathan V.; Schwartz, Ann G.; Terry, Paul D.; Wilson, Christopher M.; Fridley, Brooke L.; Schildkraut, Joellen M.; Epidemiology, Richard M. Fairbanks School of Public Health
    Background: Tumor-infiltrating lymphocytes (TIL) confer a survival benefit among patients with ovarian cancer; however, little work has been conducted in racially diverse cohorts. Methods: The current study investigated racial differences in the tumor immune landscape and survival of age- and stage-matched non-Hispanic Black and non-Hispanic White women with high-grade serous ovarian carcinoma (HGSOC) enrolled in two population-based studies (n = 121 in each racial group). We measured TILs (CD3+), cytotoxic T cells (CD3+CD8+), regulatory T cells (CD3+FoxP3+), myeloid cells (CD11b+), and neutrophils (CD11b+CD15+) via multiplex immunofluorescence. Multivariable Cox proportional hazard regression was used to estimate the association between immune cell abundance and survival overall and by race. Results: Overall, higher levels of TILs, cytotoxic T cells, myeloid cells, and neutrophils were associated with better survival in the intratumoral and peritumoral region, irrespective of tissue compartment (tumor, stroma). Improved survival was noted for T-regulatory cells in the peritumoral region and in the stroma of the intratumoral region, but no association for intratumoral T-regulatory cells. Despite similar abundance of immune cells across racial groups, associations with survival among non-Hispanic White women were consistent with the overall findings, but among non-Hispanic Black women, most associations were attenuated and not statistically significant. Conclusions: Our results add to the existing evidence that a robust immune infiltrate confers a survival advantage among women with HGSOC; however, non-Hispanic Black women may not experience the same survival benefit as non-Hispanic White women with HGSOC. Impact: This study contributes to our understanding of the immunoepidemiology of HGSOC in diverse populations.