Related Experiment Video

Updated: May 10, 2026

Cell Type-specific Gene Expression Profiling in the Mouse Liver
10:06

Cell Type-specific Gene Expression Profiling in the Mouse Liver

Published on: September 17, 2019

Genome-wide transcriptome analysis identifies novel gene signatures implicated in human chronic liver disease

Rana V Smalling1, Don A Delker, Yuxia Zhang

  • 1Dept. of Medicine and Huntsman Cancer Institute, Univ. of Utah School of Medicine, Salt Lake City, Utah, 84132. l.wang@hsc.utah.edu.

American Journal of Physiology. Gastrointestinal and Liver Physiology
|July 2, 2013
PubMed

Insights

This study identifies novel genes regulated by small heterodimer partner (SHP) involved in chronic liver disease progression. These findings offer new insights into the molecular mechanisms of liver diseases like cirrhosis and nonalcoholic steatohepatitis.

Area of Science:

  • Hepatology and Molecular Biology
  • Genomics and Transcriptomics
  • Nuclear Receptor Signaling

Background:

  • The progression of human liver disease to cirrhosis involves complex molecular mechanisms that are not fully understood.
  • Small heterodimer partner (SHP/Nr0b2), a nuclear receptor, acts as a hepatic tumor suppressor, and its reduced expression in cirrhotic livers suggests a role in disease pathogenesis.
  • Identifying SHP-regulated genes is crucial for understanding chronic liver disease development.

Purpose of the Study:

  • To identify novel genes regulated by SHP that contribute to the development and progression of chronic liver disease.
  • To elucidate the molecular pathways influenced by SHP in liver disease pathogenesis.
  • To provide a comprehensive transcriptomic profile of SHP-deficient livers in the context of liver disease.

Main Methods:

  • Comprehensive RNA sequencing (RNA-seq) analysis of Shp(-/-) mice.
  • Comparison of mouse RNA-seq data with human hepatitis C cirrhosis RNA-seq and nonalcoholic steatohepatitis (NASH) microarray datasets.
  • Validation of identified genes in 126 human liver specimens and mouse models of liver injury using quantitative PCR (qPCR).

Main Results:

  • Discovery of new gene signatures associated with chronic liver disease and regulated by SHP.
  • Identification of several key genes, including peptidoglycan recognition protein 2, dual specific phosphatase-4, tetraspanin 4, thrombospondin 1, and SPARC-related modular calcium binding protein-2, upregulated in liver disease.
  • Validation of these genes' physiological relevance across various human liver conditions (steatosis, fibrosis, NASH, cirrhosis) and mouse models.

Conclusions:

  • This study identifies novel SHP-regulated genes implicated in the molecular pathogenesis of human chronic liver diseases.
  • The findings provide valuable transcriptome information for characterizing the mechanisms underlying liver disease progression.
  • The identified genes represent potential targets for future therapeutic strategies in liver disease management.
Keywords:
chronic hepatitis C virusgene expressionhuman chronic liver diseasesknockout miceribonucleic acid sequencingsmall heterodimer partner

Related Concept Videos

Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
Cell Specific Gene Expression01:58

Cell Specific Gene Expression

Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...