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Prognostic significance of tumor-infiltrating T cells in ovarian cancer: A meta-analysis

Hwang, Wei-Ting ; Adams, Sarah F ; Tahirovic, Emin ; Hagemann, Ian S ; Coukos, George

Gynecologic oncology, 2012-02, Vol.124 (2), p.192-198 [Periódico revisado por pares]

United States: Elsevier Inc

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  • Título:
    Prognostic significance of tumor-infiltrating T cells in ovarian cancer: A meta-analysis
  • Autor: Hwang, Wei-Ting ; Adams, Sarah F ; Tahirovic, Emin ; Hagemann, Ian S ; Coukos, George
  • Assuntos: Female ; Hematology, Oncology and Palliative Medicine ; Humans ; Lymphocytes, Tumor-Infiltrating - immunology ; Meta-analysis ; Obstetrics and Gynecology ; Ovarian cancer ; Ovarian Neoplasms - immunology ; Prognosis ; TIL ; Tumor-infiltrating lymphocytes
  • É parte de: Gynecologic oncology, 2012-02, Vol.124 (2), p.192-198
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
    Present Address: Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, U.S.A.
    Contributed equally to this work
  • Descrição: Abstract Objective The presence of T cells within the epithelial component of tumors, as histologic evidence of anti-tumor immunity, has been associated with a survival advantage in multiple studies across diverse patient cohorts. We performed a meta-analysis of studies evaluating the prognostic value of tumor-infiltrating lymphocytes (TIL) on survival among women with ovarian cancer and to investigate factors associated with variations in this effect, including patient characteristics, surgical outcomes, tumor histology, and study protocols. Method Published studies that evaluated the association between TIL and patient survival were identified. Descriptive statistics, outcome data, and study quality were extracted from studies that met inclusion criteria. Hazard ratios and 95% confidence intervals were pooled across studies using the random-effects model. Publication bias was investigated using a funnel plot and heterogeneity was assessed with subgroup analysis and I2 statistics. Results Ten suitable studies comprising 1815 patients with ovarian cancer were analyzed. Our results demonstrate that a lack of intraepithelial TILs is significantly associated with a worse survival among patients (pooled HR: 2.24, 95% CI; 1.71–2.91). Variations in the prognostic value of TIL status based on debulking status, scoring method, and geographic regions were identified. Conclusions Intraepithelial TILs are a robust predictor of outcome in ovarian cancer and define a specific class of patients, whose distinct tumor biology should be taken into account in devising appropriate therapeutic strategies.
  • Editor: United States: Elsevier Inc
  • Idioma: Inglês
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