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Virginia Tech

Modulation of Neutrophil Functions and Anti-Tumor Immune Responses by Innate Suppressors

Abstract

dc:description.abstract

Neutrophils are known to be key innate defenders through performing vital and diverse functions such as degranulation, oxidative burst, and generation of extracellular trap (NET). Recent data suggest that neutrophils may also play key roles in modulating tissue inflammatory/immune environment by secreting soluble mediators as well as surface-attached co-activators. Furthermore, neutrophils may adopt distinct functional states either conducive or detrimental for tumor-growth through cellular contact with cancer cells and/or other immune cells such as T helper cells. However, molecular mechanisms that modulate functional adaptations of neutrophils are not well understood. The objective of my thesis is to identify the role of Tollip, a novel TLR signaling adaptor molecule, in modulating neutrophil functions by suppressing the inflammatory signaling pathway. Preliminary data from our lab suggest Tollip deficient neutrophils may be programed to exhibit enhanced anti-tumor activities. Based on these novel findings, I tested the hypothesis that neutrophils also have subsets with different functions similar to monocyte/macrophages, and Tollip deficient neutrophils may be programmed into an enhanced anti-tumor state through upregulating inflammatory signaling processes and mediators.

Degree

thesis:*
Name thesis:degree_name
Ph. D.
Level thesis:degree_level
doctoral
Discipline thesis:degree_discipline
Translational Biology, Medicine and Health
Department dc:contributor.department
Translational Biology, Medicine and Health
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
2018

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Lee, Christina K.
Chair dc:contributor.committeechair
  • Li, Liwu
Committee members dc:contributor.committeemember
  • Jones, Caroline N.
  • Xu, Bin
  • Theus, Michelle H.

Subjects

dc:subject × 4

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Dc Identifier Other
vt_gsexam:17883
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/98571

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Lee, Christina K.. Modulation of Neutrophil Functions and Anti-Tumor Immune Responses by Innate Suppressors. doctoral thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/98571