PMID- 20707918 OWN - NLM STAT- MEDLINE DCOM- 20101011 LR - 20211020 IS - 1471-230X (Electronic) IS - 1471-230X (Linking) VI - 10 DP - 2010 Aug 13 TI - Infection with HIV and HCV enhances the release of fatty acid synthase into circulation: evidence for a novel indicator of viral infection. PG - 92 LID - 10.1186/1471-230X-10-92 [doi] AB - BACKGROUND: Fatty acid synthase (FASN) is an enzyme synthesized by the liver and plays an important role in lipogenesis. The present study aimed to investigate whether serum FASN concentration may provide a direct link between HIV and/or HCV viral infections and lipid metabolic disorders commonly observed in HIV/HCV-infected patients. METHODS: We evaluated serum FASN concentration in 191 consecutive HIV-infected patients in the absence or presence of HCV co-infection. For comparison, 102 uninfected controls were included. Metabolic and inflammatory phenotype was also compared with respect to the presence of HCV co-infection. RESULTS: Serum FASN concentration was significantly higher in HIV-infected patients than in healthy participants and HCV co-infected patients showed higher levels than those without co-infection. Levels were also affected by treatment regimen, but marginally influenced by virological variables. Insulin concentration was the sole variable among metabolic parameters that demonstrated a significant correlation with serum FASN concentrations. Serum alanine aminotransferase (ALT) values correlated significantly with serum FASN concentration and provided the best discrimination with respect to the presence or absence of HCV co-infection. In multivariate analysis, only ALT, monocyte chemoattractant protein-1 (MCP-1) and the presence of antiretroviral treatment regimen significantly contributed to explain serum FASN concentration in HIV/HCV co-infected patients. CONCLUSION: Serum FASN concentration is significantly increased in HIV-infected individuals. The release of FASN into the circulation is further enhanced in patients who are co-infected with HCV. Subsequent studies should explore the usefulness of this indicator to monitor the effect of viral infections on disease progression and survival. FAU - Aragones, Gerard AU - Aragones G AD - Centre de Recerca Biomedica, Hospital Universitari de Sant Joan, Institut d'Investigacio Sanitaria Pere Virgili, Universitat Rovira i Virgili, Reus, Spain. FAU - Alonso-Villaverde, Carlos AU - Alonso-Villaverde C FAU - Oliveras-Ferraros, Cristina AU - Oliveras-Ferraros C FAU - Beltran-Debon, Raul AU - Beltran-Debon R FAU - Rull, Anna AU - Rull A FAU - Rodriguez-Sanabria, Fernando AU - Rodriguez-Sanabria F FAU - Camps, Jordi AU - Camps J FAU - Martin, Alejandro Vazquez AU - Martin AV FAU - Menendez, Javier A AU - Menendez JA FAU - Joven, Jorge AU - Joven J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100813 PL - England TA - BMC Gastroenterol JT - BMC gastroenterology JID - 100968547 RN - 0 (Biomarkers) RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Insulin) RN - EC 2.3.1.85 (Fatty Acid Synthases) RN - EC 2.6.1.2 (Alanine Transaminase) SB - IM MH - Adult MH - Alanine Transaminase/blood MH - Biomarkers/blood MH - Case-Control Studies MH - Chemokine CCL2/blood MH - Comorbidity MH - Disease Progression MH - Fatty Acid Synthases/*blood MH - Female MH - HIV/*physiology MH - HIV Infections/*blood/diagnosis/epidemiology MH - Hepacivirus/*physiology MH - Hepatitis C/*blood/diagnosis/epidemiology MH - Humans MH - Insulin/blood MH - Lipid Metabolism/physiology MH - Male PMC - PMC2928758 EDAT- 2010/08/17 06:00 MHDA- 2010/10/12 06:00 PMCR- 2010/08/13 CRDT- 2010/08/17 06:00 PHST- 2009/12/09 00:00 [received] PHST- 2010/08/13 00:00 [accepted] PHST- 2010/08/17 06:00 [entrez] PHST- 2010/08/17 06:00 [pubmed] PHST- 2010/10/12 06:00 [medline] PHST- 2010/08/13 00:00 [pmc-release] AID - 1471-230X-10-92 [pii] AID - 10.1186/1471-230X-10-92 [doi] PST - epublish SO - BMC Gastroenterol. 2010 Aug 13;10:92. doi: 10.1186/1471-230X-10-92.