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Notarnicola M, Barone M, Francavilla A, Tutino V, Bianco G, Tafaro A, Minoia M, Polimeno L, Napoli A, Scavo MP, Caruso MG. Lovastatin, but not orlistat, reduces intestinal polyp volume in an ApcMin/+ mouse model. Oncol Rep 2016; 36:893-9. [PMID: 27277576 DOI: 10.3892/or.2016.4856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 01/21/2016] [Indexed: 02/07/2023] Open
Abstract
The statins, inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCoAR) and orlistat, an inhibitor of fatty acid synthase (FAS), inhibit tumor cell growth by restricting cholesterol and fatty acid synthesis, respectively. We previously demonstrated that an omega (ω)-3 polyunsaturated fatty acid (PUFA)- or olive oil-enriched diet reduced the polyp number and volume in ApcMin/+ mice. This phenomenon was associated with a significant inhibition of FAS and HMGCoAR, as well as an increase in the estrogen receptor (ER)β/α ratio. Herein, we evaluated the effect of lovastatin and orlistat on polyp development and ER expression in ApcMin/+ mice, in order to confirm previous data obtained with ω‑3-PUFAs and olive oil. As expected, the use of lovastatin and orlistat significantly reduced HMGCoAR and FAS enzymatic activities and gene expression in colonic tissues, but did not affect the number of intestinal polyps, while there was a statistically significant reduction in polyp volume only in the mouse group treated with lovastatin. In the mice receiving orlistat, we observed a significant increase in cell proliferation in the polyp tissue, as well as enhanced expression of ERα. Moreover, the overexpression of ERα was associated with a statistically significant increase in PES1, Shh and Gli1 protein levels, considered ERα-related molecular targets.
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Affiliation(s)
- Maria Notarnicola
- Laboratory of Nutritional Biochemistry, National Institute for Digestive Diseases 'S. de Bellis', Castellana Grotte, Bari, Italy
| | - Michele Barone
- Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Antonio Francavilla
- Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Valeria Tutino
- Laboratory of Nutritional Biochemistry, National Institute for Digestive Diseases 'S. de Bellis', Castellana Grotte, Bari, Italy
| | - Giusy Bianco
- Animal Facility, National Institute for Digestive Diseases 'S. de Bellis', Castellana Grotte, Bari, Italy
| | - Angela Tafaro
- Animal Facility, National Institute for Digestive Diseases 'S. de Bellis', Castellana Grotte, Bari, Italy
| | - Mario Minoia
- Animal Facility, National Institute for Digestive Diseases 'S. de Bellis', Castellana Grotte, Bari, Italy
| | - Lorenzo Polimeno
- Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Anna Napoli
- Pathology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Maria Principia Scavo
- Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Maria Gabriella Caruso
- Laboratory of Nutritional Biochemistry, National Institute for Digestive Diseases 'S. de Bellis', Castellana Grotte, Bari, Italy
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