Aging Increases Susceptibility to Ovarian Cancer Metastasis in Murine Allograft Models and Alters Immune Composition of Peritoneal Adipose Tissue.

Published on Jun 1, 2018in Neoplasia5.696
· DOI :10.1016/J.NEO.2018.03.007
Elizabeth Loughran7
Estimated H-index: 7
(ND: University of Notre Dame),
Annemarie K. Leonard2
Estimated H-index: 2
(ND: University of Notre Dame)
+ 14 AuthorsM. Sharon Stack17
Estimated H-index: 17
(ND: University of Notre Dame)
Sources
Abstract
Abstract Ovarian cancer, the most deadly gynecological malignancy in U.S. women, metastasizes uniquely, spreading through the peritoneal cavity and often generating widespread metastatic sites before diagnosis. The vast majority of ovarian cancer cases occur in women over 40 and the median age at diagnosis is 63. Additionally, elderly women receive poorer prognoses when diagnosed with ovarian cancer. Despite age being a significant risk factor for the development of this cancer, there are little published data which address the impact of aging on ovarian cancer metastasis. Here we report that the aged host is more susceptible to metastatic success using two murine syngeneic allograft models of ovarian cancer metastasis. This age-related increase in metastatic tumor burden corresponds with an increase in tumor infiltrating lymphocytes (TILs) in tumor-bearing mice and alteration of B cell-related pathways in gonadal adipose tissue. Based on this work, further studies elucidating the status of B cell TILs in mouse models of metastasis and human tumors in the context of aging are warranted.
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