title: Plasma proteome profiles associated with inflammation, angiogenesis, and cancer.
abstract: Tumor development is accompanied by a complex host systemic response, which includes inflammatory and angiogenic reactions. Both tumor-derived and systemic response proteins are detected in plasma from cancer patients. However, given their non-specific nature, systemic response proteins can confound the detection or diagnosis of neoplasia. Here, we have applied an in-depth quantitative proteomic approach to analyze plasma protein changes in mouse models of subacute irritant-driven inflammation, autoreactive inflammation, and matrix associated angiogenesis and compared results to previously described findings from mouse models of polyoma middle T-driven breast cancer and Pdx1-Cre Kras(G12D) Ink4a/Arf (lox/lox)-induced pancreatic cancer. Among the confounding models, approximately 1/3 of all quantified plasma proteins exhibited a significant change in abundance compared to control mice. Of the proteins that changed in abundance, the majority were unique to each model. Altered proteins included those involved in acute phase response, inflammation, extracellular matrix remodeling, angiogenesis, and TGFβ signaling. Comparison of changes in plasma proteins between the confounder models and the two cancer models revealed proteins that were restricted to the cancer-bearing mice, reflecting the known biology of these tumors. This approach provides a basis for distinguishing between protein changes in plasma that are cancer-related and those that are part of a non-specific host response.
authors: Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.
authors: Karen S
authors: KS
authors: Kelly-Spratt
authors: Sharon J
authors: SJ
authors: Pitteri
authors: Kay E
authors: KE
authors: Gurley
authors: Denny
authors: D
authors: Liggitt
authors: Alice
authors: A
authors: Chin
authors: Jacob
authors: J
authors: Kennedy
authors: Chee-Hong
authors: CH
authors: Wong
authors: Qing
authors: Q
authors: Zhang
authors: Tina Busald
authors: TB
authors: Buson
authors: Hong
authors: H
authors: Wang
authors: Samir M
authors: SM
authors: Hanash
authors: Christopher J
authors: CJ
authors: Kemp
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