Back to Search
Start Over
Nondegradable Collagen Increases Liver Fibrosis but Not Hepatocellular Carcinoma in Mice
- Source :
- Am J Pathol, The American journal of pathology, vol 191, iss 9
- Publication Year :
- 2021
-
Abstract
- Although hepatocellular cancer (HCC) usually occurs in the setting of liver fibrosis, the causal relationship between liver fibrosis and HCC is unclear. in vivo and in vitro models of HCC involving Col(r/r) mice (that produce a collagenase-resistant type I collagen) or wild-type (WT) mice were used to assess the relationship between type I collagen, liver fibrosis, and experimental HCC. HCC was either chemically induced in WT and Col(r/r) mice or Hepa 1-6 cells were engrafted into WT and Col(r/r) livers. The effect of hepatic stellate cells (HSCs) from WT and Col(r/r) mice on the growth of Hepa 1-6 cells was studied by using multicellular tumor spheroids and xenografts. Collagen type I deposition and fibrosis were increased in Col(r/r) mice, but they developed fewer and smaller tumors. Hepa 1-6 cells had reduced tumor growth in the livers of Col(r/r) mice. Although Col(r/r) HSCs exhibited a more activated phenotype, Hepa 1-6 growth and malignancy were suppressed in multicellular tumor spheroids and in xenografts containing Col(r/r) HSCs. Treatment with vitronectin, which mimics the presence of degraded collagen fragments, converted the Col(r/r) phenotype into a WT phenotype. Although Col(r/r) mice have increased liver fibrosis, they exhibited decreased HCC in several models. Thus, increased liver type I collagen does not produce increased experimental HCC.
- Subjects :
- Liver Cancer
0301 basic medicine
Liver Cirrhosis
Carcinoma, Hepatocellular
Chronic Liver Disease and Cirrhosis
Inbred C57BL
Medical and Health Sciences
Collagen Type I
Cell Line
Pathology and Forensic Medicine
Extracellular matrix
Experimental
03 medical and health sciences
Mice
Rare Diseases
0302 clinical medicine
Liver Neoplasms, Experimental
Fibrosis
Cell Line, Tumor
Pathology
medicine
Hepatic Stellate Cells
Animals
Humans
Cancer
Tumor microenvironment
Tumor
biology
Chemistry
Liver Disease
Carcinoma
Liver Neoplasms
Hepatocellular
Regular Article
medicine.disease
Mice, Inbred C57BL
030104 developmental biology
030220 oncology & carcinogenesis
Hepatocellular carcinoma
Cancer research
Hepatic stellate cell
biology.protein
Vitronectin
Digestive Diseases
Myofibroblast
Type I collagen
Subjects
Details
- ISSN :
- 15252191
- Volume :
- 191
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- The American journal of pathology
- Accession number :
- edsair.doi.dedup.....11b387746cb8141988dca03aeb9feb78