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

Neoplasia : an International Journal for Oncology Research
Elizabeth A LoughranM Sharon Stack

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.

Citations

Apr 9, 2020·Immunological Investigations·Ana Carolinne Da SilvaRosekeila Simões Nomelini
Jun 17, 2020·Biomarkers : Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals·Douglas Côbo MicheliBeatriz Martins Tavares-Murta
Jan 15, 2020·Cancer Research·Marwa AsemM Sharon Stack
Oct 11, 2019·Clinical Cancer Research : an Official Journal of the American Association for Cancer Research·Curtis W McCloskeyBarbara C Vanderhyden
May 8, 2019·Developmental Cell·Yang GaoXiang H-F Zhang
Apr 4, 2021·International Journal of Molecular Sciences·Preston CareyM Sharon Stack

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Methods Mentioned

BETA
RNAseq
Assay
PCR

Software Mentioned

Ensemble
FastQC
SAMtools
StepOne
ImageJ
eSlide Manager
HTSeq
TopHat2
Ingenuity Pathway Analysis ( IPA )
Aperio Image Analysis Tools

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