PMID- 29668854 OWN - NLM STAT- MEDLINE DCOM- 20190128 LR - 20220318 IS - 1460-2180 (Electronic) IS - 0143-3334 (Print) IS - 0143-3334 (Linking) VI - 39 IP - 6 DP - 2018 May 28 TI - Prostate cancer chemoprevention by sulforaphane in a preclinical mouse model is associated with inhibition of fatty acid metabolism. PG - 826-837 LID - 10.1093/carcin/bgy051 [doi] AB - Increased de novo synthesis of fatty acids is a rather unique and targetable mechanism of human prostate cancer. We have shown previously that oral administration of sulforaphane (SFN) significantly inhibits the incidence and/or burden of prostatic intraepithelial neoplasia and well-differentiated adenocarcinoma in TRansgenic Adenocarcinoma of Mouse Prostate (TRAMP) mice. The present study used cellular models of prostate cancer and archived plasma/adenocarcinoma tissues and sections from the TRAMP study to demonstrate inhibition of fatty acid synthesis by SFN treatment in vitro and in vivo. Treatment of androgen-responsive (LNCaP) and castration-resistant (22Rv1) human prostate cancer cells with SFN (5 and 10 muM) resulted in downregulation of protein and mRNA levels of acetyl-CoA carboxylase 1 (ACC1) and fatty acid synthase (FASN), but not ATP citrate lyase. Protein and mRNA levels of carnitine palmitoyltransferase 1A (CPT1A), which facilitates fatty acid uptake by mitochondria for beta-oxidation, were also decreased following SFN treatment in both cell lines. Immunohistochemistry revealed a significant decrease in expression of FASN and ACC1 proteins in prostate adenocarcinoma sections of SFN-treated TRAMP mice when compared with controls. SFN administration to TRAMP mice resulted in a significant decrease in plasma and/or prostate adenocarcinoma levels of total free fatty acids, total phospholipids, acetyl-CoA and ATP. Consistent with these results, number of neutral lipid droplets was lower in the prostate adenocarcinoma sections of SFN-treated TRAMP mice than in control tumors. Collectively, these observations indicate that prostate cancer chemoprevention by SFN in TRAMP mice is associated with inhibition of fatty acid metabolism. FAU - Singh, Krishna B AU - Singh KB AD - Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. FAU - Kim, Su-Hyeong AU - Kim SH AD - Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. FAU - Hahm, Eun-Ryeong AU - Hahm ER AD - Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. FAU - Pore, Subrata K AU - Pore SK AD - Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. FAU - Jacobs, Bruce L AU - Jacobs BL AD - Department of Urology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. FAU - Singh, Shivendra V AU - Singh SV AD - Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. AD - UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. LA - eng GR - R01 CA101753/CA/NCI NIH HHS/United States GR - R01 CA115498/CA/NCI NIH HHS/United States GR - P30 CA047904/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - England TA - Carcinogenesis JT - Carcinogenesis JID - 8008055 RN - 0 (Anticarcinogenic Agents) RN - 0 (Fatty Acids) RN - 0 (Isothiocyanates) RN - 0 (Sulfoxides) RN - EC 2.3.1.85 (Fatty Acid Synthases) RN - GA49J4310U (sulforaphane) SB - IM MH - Adenocarcinoma/metabolism/prevention & control MH - Animals MH - Anticarcinogenic Agents/*pharmacology MH - Chemoprevention/methods MH - Fatty Acid Synthases/drug effects/metabolism MH - Fatty Acids/*metabolism MH - Humans MH - Isothiocyanates/*pharmacology MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Mice, Transgenic MH - Prostate/drug effects/metabolism MH - Prostatic Intraepithelial Neoplasia/metabolism/prevention & control MH - Prostatic Neoplasms/metabolism/*prevention & control MH - Sulfoxides PMC - PMC5972626 EDAT- 2018/04/19 06:00 MHDA- 2019/01/29 06:00 PMCR- 2019/05/28 CRDT- 2018/04/19 06:00 PHST- 2017/08/22 00:00 [received] PHST- 2018/04/10 00:00 [accepted] PHST- 2018/04/19 06:00 [pubmed] PHST- 2019/01/29 06:00 [medline] PHST- 2018/04/19 06:00 [entrez] PHST- 2019/05/28 00:00 [pmc-release] AID - 4969927 [pii] AID - bgy051 [pii] AID - 10.1093/carcin/bgy051 [doi] PST - ppublish SO - Carcinogenesis. 2018 May 28;39(6):826-837. doi: 10.1093/carcin/bgy051.