University of Illinois Urbana-Champaign

Uncovering a novel role for FXR-SHP axis in liver physiology, diseases and beyond

Mathur, Bhoomika

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https://hdl.handle.net/2142/105785

Description

Title
Uncovering a novel role for FXR-SHP axis in liver physiology, diseases and beyond
Author(s)
Mathur, Bhoomika
Issue Date
2019-07-09
Director of Research (if dissertation) or Advisor (if thesis)
Anakk, Sayeepriyadarshini
Doctoral Committee Chair(s)
Anakk, Sayeepriyadarshini
Committee Member(s)
  • Bagchi, Milan K
  • Kemper, Jongsook K
  • Brieher, William M
Department of Study
Molecular & Integrative Physl
Discipline
Molecular & Integrative Physi
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
  • Nuclear Receptors
  • Bile Acid
  • FXR
  • SHP
  • CAR
  • Cholestasis
  • Cardiomyopathy
  • Golgi apparatus
  • cholesterol
  • glycosylation
  • liver
Abstract
Liver performs a multitude of functions ranging from detoxification, metabolism and digestion. To execute these tasks, one of the mechanisms that the liver utilizes is nuclear receptor signaling, which in turn can transcriptionally regulate gene networks. My doctoral thesis focuses on studying the role of two nuclear receptors, FXR and SHP in maintaining liver function. Farnesoid X Receptor (FXR) and Small Heterodimer Partner (SHP) are well-known regulators of glucose, fat and bile acid homeostasis. Here, I uncover novel roles for FXR-SHP axis not only in the liver but also in extrahepatic organs, like heart. In Chapter 2, I discuss how hepatic loss of FXR and SHP results in increased glycosylation of liver proteins and structural defects in Golgi apparatus, and ultimately liver cancer. Chapter 3 focuses on comprehending how FXR-SHP ablation results in increased drug metabolic capacity of the liver. Finally, chapter 4 discusses how liver dysfunction, caused by loss of FXR and SHP, can induce metabolic and functional defects in heart. Taken together, these projects will help understand some of the FXR and SHP transcriptional networks under different physiological and pathological contexts and may open avenues for pharmacological manipulation to treat various diseases.
Graduation Semester
2019-08
Type of Resource
text
Permalink
http://hdl.handle.net/2142/105785
Copyright and License Information
Copyright 2019 Bhoomika Mathur

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