Effect of in vivo loss of GDF-15 on hepatocellular carcinogenesis

Teresa Zimmers, Xiaoling Jin, Juan C. Gutierrez, Cary Acosta, Iain H. McKillop, Robert H. Pierce, Leonidas Koniaris

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Background: Growth/differentiation factor-15(GDF-15) is a divergent TGF-β family member that is expressed following liver injury and carcinogen exposure. GDF-15 expression is highly associated with gastrointestinal cancer stage, size, and metastasis and has been implicated in inhibition of tumor growth and increased tumor invasiveness. The current study sought to determine the effect of GDF-15 ablation on the development of hepatocellular carcinoma (HCC) in vivo. Materials and methods: Male mice genetically deleted for the gene encoding GDF-15 (Gdf15 -/- mice) and wild-type controls were exposed to the hepatocarcinogen diethylnitrosamine (DEN). Mice were killed at 6 months of age and their livers dissected and processed for histology. Tumor number and size relative to total liver area examined were determined. Results: At 6 months of age, tumors were identified in 16 of 20 (80%) Gdf15 -/- mice and 16 of 19 wild-type mice (84%). No significant difference in tumor-occupied area was observed in Gdf15 -/- mice versus wild-type mice. In addition, no difference in invasiveness was observed in HCC arising in Gdf15 -/- as compared to wild-type mice. In wild type mice strong immunohistochemical staining for GDF-15 was noted on small HCC foci, whereas a loss of GDF-15 expression was found in a number of advanced HCC tumors. Conclusions: Although highly expressed in association with multiple gastrointestinal cancers, and lost in some advanced HCC, genetic ablation of GDF-15 has no apparent effect on HCC tumor formation rate, growth rate or invasiveness in diethylnitrosamine-induced HCC in vivo.

Original languageEnglish (US)
Pages (from-to)753-759
Number of pages7
JournalJournal of Cancer Research and Clinical Oncology
Volume134
Issue number7
DOIs
StatePublished - Jul 2008
Externally publishedYes

Fingerprint

Growth Differentiation Factor 15
Carcinogenesis
Hepatocellular Carcinoma
Neoplasms
Diethylnitrosamine
Gastrointestinal Neoplasms
Liver
Growth
Carcinogens
Histology

Keywords

  • Growth/differentiation factor-15
  • Hepatocellular carcinoma
  • hNAG-1
  • hPDF
  • hPLAB
  • hPTGF-βPL
  • Transforming growth factor-β
  • Transgenic/knockout

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Effect of in vivo loss of GDF-15 on hepatocellular carcinogenesis. / Zimmers, Teresa; Jin, Xiaoling; Gutierrez, Juan C.; Acosta, Cary; McKillop, Iain H.; Pierce, Robert H.; Koniaris, Leonidas.

In: Journal of Cancer Research and Clinical Oncology, Vol. 134, No. 7, 07.2008, p. 753-759.

Research output: Contribution to journalArticle

Zimmers, Teresa ; Jin, Xiaoling ; Gutierrez, Juan C. ; Acosta, Cary ; McKillop, Iain H. ; Pierce, Robert H. ; Koniaris, Leonidas. / Effect of in vivo loss of GDF-15 on hepatocellular carcinogenesis. In: Journal of Cancer Research and Clinical Oncology. 2008 ; Vol. 134, No. 7. pp. 753-759.
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abstract = "Background: Growth/differentiation factor-15(GDF-15) is a divergent TGF-β family member that is expressed following liver injury and carcinogen exposure. GDF-15 expression is highly associated with gastrointestinal cancer stage, size, and metastasis and has been implicated in inhibition of tumor growth and increased tumor invasiveness. The current study sought to determine the effect of GDF-15 ablation on the development of hepatocellular carcinoma (HCC) in vivo. Materials and methods: Male mice genetically deleted for the gene encoding GDF-15 (Gdf15 -/- mice) and wild-type controls were exposed to the hepatocarcinogen diethylnitrosamine (DEN). Mice were killed at 6 months of age and their livers dissected and processed for histology. Tumor number and size relative to total liver area examined were determined. Results: At 6 months of age, tumors were identified in 16 of 20 (80{\%}) Gdf15 -/- mice and 16 of 19 wild-type mice (84{\%}). No significant difference in tumor-occupied area was observed in Gdf15 -/- mice versus wild-type mice. In addition, no difference in invasiveness was observed in HCC arising in Gdf15 -/- as compared to wild-type mice. In wild type mice strong immunohistochemical staining for GDF-15 was noted on small HCC foci, whereas a loss of GDF-15 expression was found in a number of advanced HCC tumors. Conclusions: Although highly expressed in association with multiple gastrointestinal cancers, and lost in some advanced HCC, genetic ablation of GDF-15 has no apparent effect on HCC tumor formation rate, growth rate or invasiveness in diethylnitrosamine-induced HCC in vivo.",
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T1 - Effect of in vivo loss of GDF-15 on hepatocellular carcinogenesis

AU - Zimmers, Teresa

AU - Jin, Xiaoling

AU - Gutierrez, Juan C.

AU - Acosta, Cary

AU - McKillop, Iain H.

AU - Pierce, Robert H.

AU - Koniaris, Leonidas

PY - 2008/7

Y1 - 2008/7

N2 - Background: Growth/differentiation factor-15(GDF-15) is a divergent TGF-β family member that is expressed following liver injury and carcinogen exposure. GDF-15 expression is highly associated with gastrointestinal cancer stage, size, and metastasis and has been implicated in inhibition of tumor growth and increased tumor invasiveness. The current study sought to determine the effect of GDF-15 ablation on the development of hepatocellular carcinoma (HCC) in vivo. Materials and methods: Male mice genetically deleted for the gene encoding GDF-15 (Gdf15 -/- mice) and wild-type controls were exposed to the hepatocarcinogen diethylnitrosamine (DEN). Mice were killed at 6 months of age and their livers dissected and processed for histology. Tumor number and size relative to total liver area examined were determined. Results: At 6 months of age, tumors were identified in 16 of 20 (80%) Gdf15 -/- mice and 16 of 19 wild-type mice (84%). No significant difference in tumor-occupied area was observed in Gdf15 -/- mice versus wild-type mice. In addition, no difference in invasiveness was observed in HCC arising in Gdf15 -/- as compared to wild-type mice. In wild type mice strong immunohistochemical staining for GDF-15 was noted on small HCC foci, whereas a loss of GDF-15 expression was found in a number of advanced HCC tumors. Conclusions: Although highly expressed in association with multiple gastrointestinal cancers, and lost in some advanced HCC, genetic ablation of GDF-15 has no apparent effect on HCC tumor formation rate, growth rate or invasiveness in diethylnitrosamine-induced HCC in vivo.

AB - Background: Growth/differentiation factor-15(GDF-15) is a divergent TGF-β family member that is expressed following liver injury and carcinogen exposure. GDF-15 expression is highly associated with gastrointestinal cancer stage, size, and metastasis and has been implicated in inhibition of tumor growth and increased tumor invasiveness. The current study sought to determine the effect of GDF-15 ablation on the development of hepatocellular carcinoma (HCC) in vivo. Materials and methods: Male mice genetically deleted for the gene encoding GDF-15 (Gdf15 -/- mice) and wild-type controls were exposed to the hepatocarcinogen diethylnitrosamine (DEN). Mice were killed at 6 months of age and their livers dissected and processed for histology. Tumor number and size relative to total liver area examined were determined. Results: At 6 months of age, tumors were identified in 16 of 20 (80%) Gdf15 -/- mice and 16 of 19 wild-type mice (84%). No significant difference in tumor-occupied area was observed in Gdf15 -/- mice versus wild-type mice. In addition, no difference in invasiveness was observed in HCC arising in Gdf15 -/- as compared to wild-type mice. In wild type mice strong immunohistochemical staining for GDF-15 was noted on small HCC foci, whereas a loss of GDF-15 expression was found in a number of advanced HCC tumors. Conclusions: Although highly expressed in association with multiple gastrointestinal cancers, and lost in some advanced HCC, genetic ablation of GDF-15 has no apparent effect on HCC tumor formation rate, growth rate or invasiveness in diethylnitrosamine-induced HCC in vivo.

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KW - Transforming growth factor-β

KW - Transgenic/knockout

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