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Kanu SC, Ejezie FE, Ejezie CS, Eleazu CO. Effect of methanol extract of Plectranthus esculentus N.E.Br tuber and its fractions on indices of benign prostatic hyperplasia in Wistar rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 331:118301. [PMID: 38735419 DOI: 10.1016/j.jep.2024.118301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/18/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Many ethnopharmacological properties (anti-tumor, etc.) have been credited to Plectranthus esculentus tuber but the scientific basis has not been established. AIM OF THE STUDY To evaluate the effect of methanol extract of P. esculentus tuber (MEPET) (phase 1) and its fractions (phase 2) on benign prostatic hyperplasia (BPH) in rats. MATERIALS AND METHODS The study was conducted in two phases. Phase 1, thirty-five male albino rats (6 weeks old) were divided into seven groups of five rats each: normal control (NC) received olive oil (subcutaneously) and water (orally); disease control (DC) received testosterone propionate (TP) (3 mg/kg) and water; test groups (1,2,3 and 4) received TP + MEPET at 100, 200, 400, 600 mg/kg respectively; positive control, received TP + finasteride (5 mg/70 kg). After 28 days, their relative prostate weights (RPW) and prostate specific antigen (PSA) were determined. Phase 2, thirty rats were divided into 6 groups of 5 rats each: NC received olive oil (subcutaneously daily) and dimethyl sulfoxide (DMSO) (orally); DC received TP (3 mg/kg), and DMSO; test group 1 received TP and aqueous fraction of MEPET (400 mg/kg); test group 2 received TP and methanol fraction of MEPET (400 mg/kg); test group 3 received TP, and ethyl acetate fraction of MEPET (400 mg/kg); positive control received TP and finasteride (5 mg/70 kg). After 28 days, their erythrocyte sedimentation rates, RPW, prostate levels of PSA, DHT, inflammatory, apoptotic markers and prostate histology were determined. RESULTS Ethyl acetate fraction of MEPET modulated most of the parameters of BPH in the rats in a manner akin to finasteride as corroborated by prostate histology. CONCLUSIONS EFPET could be useful in the treatment of BPH.
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Affiliation(s)
- Shedrach C Kanu
- Department of Medical Biochemistry, College of Medicine, University of Nigeria Enugu Campus, Enugu State, Nigeria; Department of Biochemistry, Alex-Ekwueme Federal University Ndufu-Alike, Ikwo, Ebonyi State, Nigeria.
| | - Fidelis E Ejezie
- Department of Medical Biochemistry, College of Medicine, University of Nigeria Enugu Campus, Enugu State, Nigeria
| | - Chioma S Ejezie
- Department of Haematology and Immunology, University of Nigeria Teaching Hospital, Ituku-Ozalla Enugu, Nigeria
| | - Chinedum O Eleazu
- Department of Biochemistry, Alex-Ekwueme Federal University Ndufu-Alike, Ikwo, Ebonyi State, Nigeria
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Zlatanova M, Nešić A, Trbojević-Ivić J, Četić D, Gavrović-Jankulović M. Targeting NF-κB Signaling: Selected Small Molecules Downregulate Pro-Inflammatory Cytokines in Both Food Allergen and LPS-Induced Inflammation. Int J Mol Sci 2024; 25:5798. [PMID: 38891984 PMCID: PMC11172266 DOI: 10.3390/ijms25115798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/07/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Although inflammation is primarily a protective response guarding the human body, it can result in a variety of chronic diseases such as allergies, auto-immune, cardiovascular diseases, and cancer. In NF-κB-mediated inflammation, many small molecules and food compounds characterized as nutraceuticals have shown positive effects associated with immunomodulatory properties. We investigated the effects of selected bioactive small molecules, commonly found in food components, vanillyl alcohol (VA) and lauric acid (LA), on different cell lines exposed to pro-inflammatory stimuli, lipopolysaccharide (LPS), and the food allergen actinidin (Act d 1). Pro-inflammatory cytokines were downregulated in response to both VA and LA, and this downregulation was caused by a decrease in the activation of the NF-κB pathway and the translocation of p65, the pathway's major component. Small nutraceutical molecules, VA and LA, showed not only inhibition of the pro-inflammatory cytokines, but also inhibition of the NF-κB activation, and reduced translocation of the p65 component. The present study may contribute to the therapeutic use of these molecules for various inflammatory diseases, which have in common an increased expression of pro-inflammatory cytokines and NF-κB-mediated inflammation.
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Affiliation(s)
- Milena Zlatanova
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (A.N.)
| | - Andrijana Nešić
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (A.N.)
- Institute for Translational Medicine (ITM), Medical School Hamburg (MSH), 20457 Hamburg, Germany
| | | | - Danilo Četić
- Department for Metabolism, Institute for the Application of Nuclear Energy, University of Belgrade, 11000 Belgrade, Serbia;
| | - Marija Gavrović-Jankulović
- Department of Biochemistry, Faculty of Chemistry, University of Belgrade, 11000 Belgrade, Serbia; (M.Z.); (A.N.)
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Sánchez-Hernández E, Cáceres-González C, Peña-Delgado V, García-Valdecasas Medina JI, Casao A, Valdez-Ayala S, Pérez-Pe R, Martín-Gil J, Martín-Ramos P. Proximate analysis and GC-MS phytochemical profiling of aqueous extracts of Doryopteris raddiana, a plant used by the Mbya-Guaraní as a contraceptive. Nat Prod Res 2024:1-8. [PMID: 38742440 DOI: 10.1080/14786419.2024.2352869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 05/02/2024] [Indexed: 05/16/2024]
Abstract
Doryopteris raddiana (Presl) Fée, a traditional contraceptive in Mbya culture, lacks scientific scrutiny regarding its chemical composition and contraceptive efficacy. Employing X-ray fluorescence, Fourier-transform infrared spectroscopy, and thermal analysis, we explored the plant's organs. Multielemental analysis excluded toxic elements. Key phytoconstituents identified by gas chromatography-mass spectrometry in the extracts obtained through infusion were glycerine, 1,3-dimethyl propane, and catechol in leaves; glycerine, cis-13-octadecenoic acid methyl ester, and 2-deoxy-D-erythro-pentose in stems and roots. Among these chemicals, glycerine emerged as the sole constituent with contraceptive potential, particularly intravaginally. Extract activity tests conducted on ram spermatozoa exhibited a reduction in the percentage of rapid spermatozoa but no significant impact on total motility, progressive motility, or viability. The reported data would only weakly support the advocated contraceptive action of this fern upon vaginal application, not through the oral administration of its decoction.
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Affiliation(s)
- E Sánchez-Hernández
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Palencia, Spain
| | - C Cáceres-González
- Escuela de Posgrado, Universidad Nacional de Itapúa, Encarnación, Paraguay
- Departament of Sociology and Social Work, Facultad de Ciencias del Trabajo, Universidad de Valladolid, Palencia, Spain
| | - V Peña-Delgado
- Grupo BIOFITER-Departamento de Bioquímica y Biología Molecular y Celular, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - J I García-Valdecasas Medina
- Departament of Sociology and Social Work, Facultad de Ciencias del Trabajo, Universidad de Valladolid, Palencia, Spain
| | - A Casao
- Grupo BIOFITER-Departamento de Bioquímica y Biología Molecular y Celular, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - S Valdez-Ayala
- Centro de Estudios Rurales Interdisciplinarios - CERI, Asunción, Paraguay
| | - R Pérez-Pe
- Grupo BIOFITER-Departamento de Bioquímica y Biología Molecular y Celular, Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA), Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - J Martín-Gil
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Palencia, Spain
| | - P Martín-Ramos
- Department of Agricultural and Forestry Engineering, ETSIIAA, Universidad de Valladolid, Palencia, Spain
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Elshall AA, Ghoneim AM, Abd-Elmonsif NM, Osman R, Shaker DS. Boosting hair growth through follicular delivery of Melatonin through lecithin-enhanced Pickering emulsion stabilized by chitosan-dextran nanoparticles in testosterone induced androgenic alopecia rat model. Int J Pharm 2023; 639:122972. [PMID: 37084830 DOI: 10.1016/j.ijpharm.2023.122972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/12/2023] [Accepted: 04/15/2023] [Indexed: 04/23/2023]
Abstract
The strategy in this work was loading Melatonin (MEL), the powerful antioxidant photosensitive molecule, in novel Pickering emulsions (PEs) stabilized by chitosan-dextran sulphate nanoparticles (CS-DS NPs) and enhanced by lecithin, for treatment of androgenic alopecia (AGA). Biodegradable CS-DS NPs dispersion was prepared by polyelectrolyte complexation and optimized for PEs stabilization. PEs were characterized for droplet size, zeta potential, morphology, photostability and antioxidant activity. Ex-vivo permeation study through rat full thickness skin was conducted with optimized formula. Differential tape stripping trailed by cyanoacrylate skin surface biopsy was executed, for quantifying MEL in skin compartments and hair follicles. In-vivo evaluation of MEL PE hair growth activity was performed on testosterone induced AGA rat model. Visual inspection followed by anagen to telogen phase ratio (A/T) and histopathological examinations were conducted and compared with marketed 5% minoxidil spray "Rogaine ®". Data showed that PE improved MEL antioxidant activity and photostability. Ex-vivo results displayed MEL PE high follicular deposition. In-vivo study demonstrated that MEL PE treated testosterone induced AGA rat group, restored hair loss and produced maximum hair regeneration along with prolonged anagen phase amongst tested groups. The histopathological examination revealed that MEL PE prolonged anagen stage, increased follicular density and A/T ratio by 1.5-fold. The results suggested that lecithin-enhanced PE stabilized by CS-DS NPs was found to be an effective approach to enhance photostability, antioxidant activity and follicular delivery of MEL. Thus, MEL-loaded PE could be a promising competitor to commercially marketed Minoxidil for treatment of AGA.
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Affiliation(s)
- Asmaa A Elshall
- Department of Applied Biotechnology, Biotechnology School, Nile University, Sheikh Zayed, Giza, Egypt.
| | - Amira M Ghoneim
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt (FUE), Cairo, Egypt.
| | - Nehad M Abd-Elmonsif
- Department of Oral Biology, Faculty of oral and dental medicine, Future University in Egypt (FUE), Cairo, Egypt
| | - Rihab Osman
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Dalia S Shaker
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmacy, Future University in Egypt (FUE), Cairo, Egypt
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Evaluation of Tolerance and Trichological Efficacy of a Food Supplement in Men and Women with Telogen Effluvium-like Disorder. COSMETICS 2022. [DOI: 10.3390/cosmetics9060135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hair thinning is a very common problem in dermatology, affecting both men and women, and can strongly impact the quality of life of subjects. In this view, therapies that aim to reduce the appearance of thinning by delaying, arresting, or reversing the course of hair thinning are highly desirable. A novel nutraceutical product (NS) containing active botanicals, a patented composition comprising rutin and polyunsaturated fatty acids (PUFAs), zinc, biotin, and ornithine, has been developed to improve hair growth in subjects with hair thinning. Sixty subjects with telogen effluvium-like hair loss were randomized 1:1 in two groups (NS vs. placebo) and treated for three months and evaluated at the baseline visit (T0), and after 15 days (T1) and one (T2), two (T3), and three (T4) months of treatment. Two follow-up visits one month (T5) and two months after the last assumption (T6) were also included in the protocol. Subjects were evaluated for the percentage of hair in the anagen phase, density of hair in the anagen phase (n/cm2), vellus hair (miniaturized, smaller, and thinner hair), and the entity of hair loss in the telogen phase (pull test). NS supplementation produced a statistically significant (p < 0.05) increase in anagen hair and hair density versus baseline from 15 days (T1) of treatment and this effect was not detectable for placebo. Moreover, a clinically/statistically significant (p < 0.05) decrease in vellus hair was also reported, suggesting not only a rapid reduction of the process of miniaturization of the hair but also a transformation of vellus hair into terminal hair. The NS treatment also showed a significant (p < 0.05) increase in tensile strength till T6 (vs. placebo). A higher percentage of subjects who took the NS noted a reduction in daily hair loss, an increase in brightness, and the presence of stronger hair. No side effects were reported. The present study confirms the clinical efficacy and safety of novel nutraceutical supplements in men and women with hair thinning, acting as a multi-targeted therapeutic approach to hair thinning due to TE-like phenomena.
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Emam KK, Abdel Fattah ME, El Rayes SM, Hebishy MA, Dessouki AA. Assessment of Wheat Germ Oil Role in the Prevention of Induced Breast Cancer in Rats. ACS OMEGA 2022; 7:13942-13952. [PMID: 35559156 PMCID: PMC9089347 DOI: 10.1021/acsomega.2c00434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/04/2022] [Indexed: 05/27/2023]
Abstract
Breast cancer is the most predominant cause of death in women globally. The current study was performed to evaluate the possible protective role of wheat germ oil (WGO), wheat germ powder (WGP), and vitamin E (Vit E) against breast carcinoma induced by the environmental carcinogen 7,12-dimethylbenz[a]anthracene (DMBA) in Sprague Dawely albino rats. Eighty female rats were divided into eight groups, each of ten rats. All protective agents were taken 21 days prior to DMBA treatment. Group I served as the normal control. Group II received Vit E (100 mg/kg BW/d) by gavage. Group III was fed a 20% WGP enriched basal diet. Group IV received WGO (270 mg/kg BW/d) by gavage. Group V received DMBA (50 mg/kg body weight/subcutaneous injection). Group VI received Vit E + DMBA. Group VII received WGP + DMBA. Group VIII received WGO + DMBA. The investigation focused on bodyweights, complete blood picture (CBC), cancer antigen 15.3 (CA15.3), superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), and histopathological and immunohistochemical analyses. Results showed that all cancer protective agents significantly improved CBC parameters, proliferating cell nuclear antigen (PCNA), and the histopathology picture, with the best improvement in the WGO group. In addition, WGO, WGP, and Vit E decreased the CA15.3 and MDA levels and elevated both the SOD and CAT levels compared to the DMBA group. Consequently, supplementation with WGO, WGP, and Vit E protects against lipid peroxidation and oxidative stress and reduces breast cancer.
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Affiliation(s)
- Kholoud Khaled Emam
- Department
of Chemistry, Faculty of Sciences, Suez
Canal University, Ismailia, 41522, Egypt
| | | | - Samir Mohamed El Rayes
- Department
of Chemistry, Faculty of Sciences, Suez
Canal University, Ismailia, 41522, Egypt
| | | | - Amina Ali Dessouki
- Department
of Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
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Noor NM, Umar S, Abdul-Aziz A, Sheikh K, Somavarapu S. Engineered Dutasteride-Lipid Based Nanoparticle (DST-LNP) System Using Oleic and Stearic Acid for Topical Delivery. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 9:bioengineering9010011. [PMID: 35049720 PMCID: PMC8773293 DOI: 10.3390/bioengineering9010011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/14/2021] [Accepted: 12/28/2021] [Indexed: 11/23/2022]
Abstract
Male pattern baldness (MPB) is a common condition that has a negative impact on the psycho-social health of many men. This study aims to engineer an alcohol-free formulation to cater for individuals who may have had allergic reactions to alcohol-based preparations. A lipid-based nanoparticle system composed of stearic and oleic acid (solid and liquid lipid) was used to deliver dutasteride (DST) for topical application. Two compositions, with oleic acid (Formulation A) and without (Formulation B), were compared to analyse the role of oleic acid as a potential active ingredient in addition to DST. DST-loaded LNP were prepared using the emulsification–ultrasonication method. All of the prepared formulations were spherical in shape in the nanometric size range (150–300 nm), with entrapment efficiencies of >75%. X-ray diffractograms revealed that DST exists in an amorphous form within the NLP matrices. The drug release behaviour from both LNP preparations displayed slow release of DST. Permeation studies through pig ear skin demonstrated that DST-LNP with oleic acid produced significantly lower permeation into the dermis compared to the formulation without oleic acid. These results suggest that the proposed formulation presents several characteristics which are novel, indicating its suitability for the dermal delivery of anti-androgenic molecules.
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Affiliation(s)
- Norhayati Mohamed Noor
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, London WC1N 1AX, UK; (S.U.); (K.S.)
- Cosmeceutical & Fragrance Laboratory, Institute of Bioproduct Development (N22), Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
- Correspondence: (N.M.N.); (S.S.)
| | - Sana Umar
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, London WC1N 1AX, UK; (S.U.); (K.S.)
| | - Azila Abdul-Aziz
- Cosmeceutical & Fragrance Laboratory, Institute of Bioproduct Development (N22), Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia;
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
| | - Khalid Sheikh
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, London WC1N 1AX, UK; (S.U.); (K.S.)
| | - Satyanarayana Somavarapu
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, London WC1N 1AX, UK; (S.U.); (K.S.)
- Correspondence: (N.M.N.); (S.S.)
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Interaction of Lactoferrin with Unsaturated Fatty Acids: In Vitro and In Vivo Study of Human Lactoferrin/Oleic Acid Complex Cytotoxicity. MATERIALS 2021; 14:ma14071602. [PMID: 33805987 PMCID: PMC8037541 DOI: 10.3390/ma14071602] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 03/16/2021] [Accepted: 03/21/2021] [Indexed: 12/24/2022]
Abstract
As shown recently, oleic acid (OA) in complex with lactoferrin (LF) causes the death of cancer cells, but no mechanism(s) of that toxicity have been disclosed. In this study, constitutive parameters of the antitumor effect of LF/OA complex were explored. Complex LF/OA was prepared by titrating recombinant human LF with OA. Spectral analysis was used to assess possible structural changes of LF within its complex with OA. Structural features of apo-LF did not change within the complex LF:OA = 1:8, which was toxic for hepatoma 22a cells. Cytotoxicity of the complex LF:OA = 1:8 was tested in cultured hepatoma 22a cells and in fresh erythrocytes. Its anticancer activity was tested in mice carrying hepatoma 22a. In mice injected daily with LF-8OA, the same tumor grew significantly slower. In 20% of animals, the tumors completely resolved. LF alone was less efficient, i.e., the tumor growth index was 0.14 for LF-8OA and 0.63 for LF as compared with 1.0 in the control animals. The results of testing from 48 days after the tumor inoculation showed that the survival rate among LF-8OA-treated animals was 70%, contrary to 0% rate in the control group and among the LF-treated mice. Our data allow us to regard the complex of LF and OA as a promising tool for cancer treatment.
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Azizi A, Mumin NH, Shafqat N. Phytochemicals With Anti 5-alpha-reductase Activity: A Prospective For Prostate Cancer Treatment. F1000Res 2021; 10:221. [PMID: 34316358 PMCID: PMC8276191 DOI: 10.12688/f1000research.51066.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/01/2021] [Indexed: 11/20/2022] Open
Abstract
Prostate cancer (CaP) is one of the leading causes of death in men worldwide. Much attention has been given on its prevention and treatment strategies, including targeting the regulation of 5-alpha-Reductase (5αR) enzyme activity, aimed to limit the progression of CaP by inhibiting the conversion of potent androgen dihydrotestosterone from testosterone that is thought to play a role in pathogenesis of CaP, by using the 5-alpha-Reductase inhibitors (5αRis) such as finasteride and dutasteride. However, 5αRis are reported to exhibit numerous adverse side effects, for instance erectile dysfunction, ejaculatory dysfunction and loss of libido. This has led to a surge of interest on plant-derived alternatives that might offer favourable side effects and less toxic profiles. Phytochemicals from plants are shown to exhibit numerous medicinal properties in various studies targeting many major illnesses including CaP. Therefore, in this review, we aim to discuss the use of phytochemicals namely phytosterols, polyphenols and fatty acids, found in various plants with proven anti-CaP properties, as an alternative herbal CaP medicines as well as to outline their inhibitory activities on 5αRs isozymes based on their structural similarities with current 5αRis as part of CaP treatment approaches.
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Affiliation(s)
- Aziemah Azizi
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei
| | - Nuramalina H Mumin
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei
| | - Naeem Shafqat
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE1410, Brunei
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Oleuropein-Laded Ufasomes Improve the Nutraceutical Efficacy. NANOMATERIALS 2021; 11:nano11010105. [PMID: 33406805 PMCID: PMC7824463 DOI: 10.3390/nano11010105] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 01/06/2023]
Abstract
Ufasomes are unsaturated fatty acid liposomes made up of oleic and linoleic acids, natural components required in various biological processes. This kind of nanocarrier is characterized by a simple and dynamic structure and is able to improve the bioavailability of unsaturated fatty acids. The aim of this investigation was to evaluate ufasomes as natural compound delivery systems to deliver oleuropein and improve its antioxidant activity. Oleuropein is a phenolic compound mainly present in olives and olive oil, with several biological properties, such as the antioxidant activity. However, to improve their biological activity, antioxidant compounds should be able to cross cell membranes and uniformly incorporate in cells. Because of the great similarity between their constituents and cell membranes, ufasomes could be advantageous carriers for oleuropein delivery. The physico-chemical characteristics of ufasomes were investigated. A regular shape was shown by transmission electron microscopy studies, while the mean sizes were dependent on the ufasomes composition. In vitro studies highlighted that empty ufasomes did not lead to cell mortality at the tested concentrations and a good carrier internalization in CaCo-2 cells, further studies in vitro studies demonstrated that oleuropein-loaded ufasomes were able to enhance the antioxidant activity of the free active substance making this carrier a suitable one for nutraceutical application.
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Noor NM, Abdul-Aziz A, Sheikh K, Somavarapu S, Taylor KMG. In Vitro Performance of Dutasteride-Nanostructured Lipid Carriers Coated with Lauric Acid-Chitosan Oligomer for Dermal Delivery. Pharmaceutics 2020; 12:E994. [PMID: 33092119 PMCID: PMC7589135 DOI: 10.3390/pharmaceutics12100994] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/27/2020] [Accepted: 10/08/2020] [Indexed: 01/02/2023] Open
Abstract
Dutasteride, licensed as an oral medicine for the treatment of benign prostatic hypoplasia, has been investigated as a treatment for androgenic alopecia. In this study, the potential for dustasteride to be delivered topically in order to reduce systemic exposure, irritation of the skin, and also cytotoxicity was explored. Chitosan oligomer (CSO) was successfully synthesised with lauric acid as a coating for a dutasteride-loaded nanostructured lipid carriers (DST-NLCs) system. DST-NLCs were prepared using a combination of melt-dispersion and ultrasonication. These negatively charged NLCs (-18.0 mV) had a mean particle size of ~184 nm, which was not significantly increased (p > 0.05) when coated with lauric acid-chitosan oligomer (CSO-LA), whilst the surface charge changed to positive (+24.8 mV). The entrapment efficiency of DST-NLCs was 97%, and coated and uncoated preparations were physically stable for up to 180 days at 4-8 °C. The drug release was slower from DST-NLCs coated with CSO-LA than from uncoated NLCs, with no detectable drug permeation through full-thickness pig ear skin from either preparation. Considering the cytotoxicity, the IC50 values for the DST-NLCs, coated and uncoated with CSO-LA were greater than for dutasteride alone (p < 0.05). DST-NLCs and empty NLCs coated with CSO-LA at 25 µM increased the cell proliferation compared to the control, and no skin irritation was observed when the DST-NLC formulations were tested using EpiDerm™. The cell and skin uptake studies of coated and uncoated NLCs incorporating the fluorescent marker Coumarin-6 showed the time-dependent uptake of Coumarin-6. Overall, the findings suggest that DST-NLCs coated with CSO-LA represent a promising formulation strategy for dutasteride delivery for the treatment of androgenic alopecia, with a reduced cytotoxicity compared to that of the drug alone and lower irritancy than an ethanolic solution of dutasteride.
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Affiliation(s)
- Norhayati Mohamed Noor
- Department of Pharmaceutics, UCL School of Pharmacy, 29–39 Brunswick Square, London WC1N 1AX, UK; (K.S.); (S.S.)
- Cosmeceutical & Fragrance Laboratory, Institute of Bioproduct Development (N22), Universiti Teknologi Malaysia, UTM Johor Bahru 81310, Johor, Malaysia;
| | - Azila Abdul-Aziz
- Cosmeceutical & Fragrance Laboratory, Institute of Bioproduct Development (N22), Universiti Teknologi Malaysia, UTM Johor Bahru 81310, Johor, Malaysia;
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru 81310, Johor, Malaysia
| | - Khalid Sheikh
- Department of Pharmaceutics, UCL School of Pharmacy, 29–39 Brunswick Square, London WC1N 1AX, UK; (K.S.); (S.S.)
| | - Satyanarayana Somavarapu
- Department of Pharmaceutics, UCL School of Pharmacy, 29–39 Brunswick Square, London WC1N 1AX, UK; (K.S.); (S.S.)
| | - Kevin M. G. Taylor
- Department of Pharmaceutics, UCL School of Pharmacy, 29–39 Brunswick Square, London WC1N 1AX, UK; (K.S.); (S.S.)
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Zhou M, Yang M, Zheng Y, Dong K, Song L, He C, Liu W, Wang Y, Jia Y. Skin surface lipidomics revealed the correlation between lipidomic profile and grade in adolescent acne. J Cosmet Dermatol 2020; 19:3349-3356. [DOI: 10.1111/jocd.13374] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/22/2020] [Accepted: 02/27/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Mingyue Zhou
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
| | - Manli Yang
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
| | - Yumei Zheng
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
| | - Kun Dong
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
| | - Liya Song
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
| | - Congfen He
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
| | - Wei Liu
- Department of Dermatology The General Hospital of Air Force Beijing China
| | - Yiyu Wang
- Department of Dermatology The General Hospital of Air Force Beijing China
| | - Yan Jia
- Beijing Key Laboratory of Plant Resources Research and Development School of Science Beijing Technology and Business University Beijing China
- Key Laboratory of Cosmetic of China National Light Industry School of Science Beijing Technology and Business University Beijing China
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Kwon Y. Use of saw palmetto ( Serenoa repens) extract for benign prostatic hyperplasia. Food Sci Biotechnol 2019; 28:1599-1606. [PMID: 31807332 DOI: 10.1007/s10068-019-00605-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/18/2019] [Accepted: 03/19/2019] [Indexed: 12/26/2022] Open
Abstract
Benign prostatic hyperplasia (BPH) is a noncancerous growth of the prostate. BPH commonly occurs in elderly men. Lower urinary tract symptoms (LUTS) secondary to BPH (LUTS/BPH) have significant impacts on their health. Saw palmetto (Serenoa repens) extract (SPE) has been evaluated for its effectiveness in improvement of LUTS/BPH at preclinical and clinical levels. Potential mechanisms of actions include anti-androgenic, pro-apoptotic, and anti-inflammatory effects. However, SPE efficacy was inconsistent, at least partly due to a lack of a standardized SPE formula. A hexane extract (free fatty acids, > 80%) provided more consistent results. Free fatty acids (lauric acid) were effective in inhibition of 5α-reductase, and phytosterol (β-sitosterol) reduced prostatic inflammation. Multiple actions derived from different constituents may contribute to SPE efficacy. Evaluation of the clinical relevance of these bioactive components is required for standardization of SPE, thereby enabling consistent efficacy and recommendations for the use in the prevention and treatment of BPH.
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Affiliation(s)
- Youngjoo Kwon
- Department of Food Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760 Korea
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14
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In vitro antioxidant and antiproliferative effect of the extracts of Ephedra chilensis K Presl aerial parts. Altern Ther Health Med 2019; 19:53. [PMID: 30832627 PMCID: PMC6399944 DOI: 10.1186/s12906-019-2462-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/20/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND Ephedra chilensis K Presl, known locally as pingo-pingo, is a Chilean endemic plant used in traditional medicine as an anti-inflammatory and used in other treatments. However, unlike for the other Ephedra species, there have been no reports on the antioxidant and cytotoxic effects of this plant. The present study aims to explore the potential applications of E. chilensis extract as a cytotoxic agent against in vitro cancer cell lines and to explore the relationship between this extract and antioxidant activity. METHODS Total anthraquinone, flavonoid, and phenolic contents, as well as antioxidant activity (DPPH, FRAP, and TRAP assays) and cytotoxic effect on several cancer cell lines (MCF-7, PC-3, DU-145, and HT-29) were measured for the hexane, dichloromethane and ethanol extracts of E. chilensis. In addition, several correlations among the phytochemical content, antioxidant activity, and cytotoxic effect were evaluated. Finally, GC-MS analyses of the most active extracts were carried out to identify their major components and to relate these components to the cytotoxic effect. RESULTS Antioxidant activity was found in the EtOH extracts of Ephedra, and the results were correlated with the phenolic content. For the cytotoxic activity, the non-polar extracts of E. chilensis had the highest antiproliferative effect for the MCF-7 and PC-3 cancer lines; the extract was shown to be up to three times more selective than doxorubicin. However, the cytotoxic effect was not correlated with the antioxidant activity. Lastly, the GC-MS analysis showed a high concentration of saturated fatty acids (mainly n-hexadecanoic acid) and terpenoids (mainly 4-(hydroxy-ethyl)-γ-butanolactone). CONCLUSION The cytotoxic activity and selectivity of the non-polar extracts of E. chilensis for the MCF-7 and PC-3 cell lines could be related to the terpenic compounds and fatty acids of the extracts or to the synergistic effect of all of the compounds in the extracts. These non-polar extracts can be used for the development of new drugs against breast and prostate cancer.
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Joghee S, Ganeshan P, Vincent A, Hong SI. Ecofriendly Biosynthesis of Zinc Oxide and Magnesium Oxide Particles from Medicinal Plant Pisonia grandis R.Br. Leaf Extract and Their Antimicrobial Activity. BIONANOSCIENCE 2018. [DOI: 10.1007/s12668-018-0573-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Salman TM, Alagbonsi IA, Feyitimi ARA, Ajayi PO. Telfairia occidentalis Hook.f. - associated haematopoietic effect is mediated by cytokines but independent of testosterone: A preliminary report. JOURNAL OF ETHNOPHARMACOLOGY 2018; 216:157-161. [PMID: 29353002 DOI: 10.1016/j.jep.2018.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 12/27/2017] [Accepted: 01/14/2018] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Telfairia occidentalis Hook.f. (TO) is popular in Nigeria for the ethnopharmacological use of its leaves to improve haematological parameters in normal and anaemic subjects. Cytokines are well-known to regulate haematopoiesis. However, their involvement in TO-associated haematopoietic effect is not known and necessitated this study. MATERIALS AND METHODS Twenty-five (25) male rats were randomly divided into 3 oral treatment groups as follows: Group 1 (control, n=5) received 0.2 ml/kg normal saline for 14 days. Groups 2 and 3 (n= 10 each) were subdivided into 2 (n=5) and received 100 mg/kg and 200 mg/kg of aqueous extract of TO respectively for 7 or 14 days. RESULTS TO had dose- and duration-dependent effects on the estimated parameters. Both doses of TO increased the RBC, WBC and erythropoietin concentrations at 14 but not 7 days. Moreover, its 100 mg/kg increased haemoglobin, neutrophil, and interleukin-3 concentrations at 7 days, while 200 mg/kg increased PCV and neutrophils at 14 days, lymphocytes at 7 days, and haemoglobin at both durations. CONCLUSION The haematopoietic effect of TO might be partly mediated by cytokines (interleukin-3 and erythropoietin) but independent of testosterone.
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Affiliation(s)
- Toyin Mohammed Salman
- Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
| | - Isiaka Abdullateef Alagbonsi
- Department of Physiology, Faculty of Medicine and Surgery, University of Gitwe, Gitwe, P.O. Box 1 Nyanza, Ruhango District, Southern Province, Republic of Rwanda.
| | | | - Peter O Ajayi
- Department of Physiology, College of Health Sciences, University of Ilorin, Ilorin, Kwara, Nigeria
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Maßberg D, Jovancevic N, Offermann A, Simon A, Baniahmad A, Perner S, Pungsrinont T, Luko K, Philippou S, Ubrig B, Heiland M, Weber L, Altmüller J, Becker C, Gisselmann G, Gelis L, Hatt H. The activation of OR51E1 causes growth suppression of human prostate cancer cells. Oncotarget 2018; 7:48231-48249. [PMID: 27374083 PMCID: PMC5217014 DOI: 10.18632/oncotarget.10197] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 06/06/2016] [Indexed: 01/23/2023] Open
Abstract
The development of prostate cancer (PCa) is regulated by the androgen-dependent activity of the androgen receptor (AR). Androgen-deprivation therapy (ADT) is therefore the gold standard treatment to suppress malignant progression of PCa. Nevertheless, due to the development of castration resistance, recurrence of disease after initial response to ADT is a major obstacle to successful treatment. As G-protein coupled receptors play a fundamental role in PCa physiology, they might represent promising alternative or combinatorial targets for advanced diseases. Here, we verified gene expression of the olfactory receptors (ORs) OR51E1 [prostate-specific G-protein coupled receptor 2 (PSGR2)] and OR51E2 (PSGR) in human PCa tissue by RNA-Seq analysis and RT-PCR and elucidated the subcellular localization of both receptor proteins in human prostate tissue. The OR51E1 agonist nonanoic acid (NA) leads to the phosphorylation of various protein kinases and growth suppression of the PCa cell line LNCaP. Furthermore, treatment with NA causes reduction of androgen-mediated AR target gene expression. Interestingly, NA induces cellular senescence, which coincides with reduced E2F1 mRNA levels. In contrast, treatment with the structurally related compound 1-nonanol or the OR2AG1 agonist amyl butyrate, neither of which activates OR51E1, did not lead to reduced cell growth or an induction of cellular senescence. However, decanoic acid, another OR51E1 agonist, also induces cellular senescence. Thus, our results suggest the involvement of OR51E1 in growth processes of PCa cells and its impact on AR-mediated signaling. These findings provide novel evidences to support the functional importance of ORs in PCa pathogenesis.
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Affiliation(s)
- Désirée Maßberg
- Department of Cell Physiology, Ruhr-University Bochum, Bochum, Germany
| | | | - Anne Offermann
- Pathology of the University Hospital of Luebeck and the Leibniz Research Center Borstel, Luebeck and Borstel, Germany
| | - Annika Simon
- Department of Cell Physiology, Ruhr-University Bochum, Bochum, Germany
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Sven Perner
- Pathology of the University Hospital of Luebeck and the Leibniz Research Center Borstel, Luebeck and Borstel, Germany
| | | | - Katarina Luko
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Stathis Philippou
- Institute for Pathology und Cytology, Augusta-Kranken-Anstalt gGmbH Bochum, Bochum, Germany
| | - Burkhard Ubrig
- Clinic for Urology, Augusta-Kranken-Anstalt gGmbH Bochum, Bochum, Germany
| | - Markus Heiland
- Clinic for Urology, Augusta-Kranken-Anstalt gGmbH Bochum, Bochum, Germany
| | - Lea Weber
- Department of Cell Physiology, Ruhr-University Bochum, Bochum, Germany
| | | | | | - Günter Gisselmann
- Department of Cell Physiology, Ruhr-University Bochum, Bochum, Germany
| | - Lian Gelis
- Department of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.,Present address: Global Drug Discovery - Clinical Sciences, Bayer Pharma AG, Wuppertal, Germany
| | - Hanns Hatt
- Department of Cell Physiology, Ruhr-University Bochum, Bochum, Germany
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Hanafy NA, Dini L, Citti C, Cannazza G, Leporatti S. Inihibition of Glycolysis by Using a Micro/Nano-Lipid Bromopyruvic Chitosan Carrier as a Promising Tool to Improve Treatment of Hepatocellular Carcinoma. NANOMATERIALS 2018; 8:nano8010034. [PMID: 29320411 PMCID: PMC5791121 DOI: 10.3390/nano8010034] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 12/14/2022]
Abstract
Glucose consumption in many types of cancer cells, in particular hepatocellular carcinoma (HCC), was followed completely by over-expression of type II hexokinase (HKII). This evidence has been used in modern pharmacotherapy to discover therapeutic target against glycolysis in cancer cells. Bromopyruvate (BrPA) exhibits antagonist property against HKII and can be used to inhibit glycolysis. However, the clinical application of BrPA is mostly combined with inhibition effect for healthy cells particularly erythrocytes. Our strategy is to encapsulate BrPA in a selected vehicle, without any leakage of BrPA out of vehicle in blood stream. This structure has been constructed from chitosan embedded into oleic acid layer and then coated by dual combination of folic acid (FA) and bovine serum albumin (BSA). With FA as specific ligand for cancer folate receptor and BSA that can be an easy binding for hepatocytes, they can raise the potential selection of carrier system.
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Affiliation(s)
- Nemany A Hanafy
- CNR NANOTEC-Istituto di Nanotecnologia, 73100 Lecce, Italy.
- Department of Mathematics and Physics "E. De Giorgi", University of Salento, 73100 Lecce, Italy.
| | - Luciana Dini
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy.
| | - Cinzia Citti
- CNR NANOTEC-Istituto di Nanotecnologia, 73100 Lecce, Italy.
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy.
| | - Giuseppe Cannazza
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy.
- Life Science Department, University of Modena e Reggio Emilia, 41121 Modena, Italy.
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Chaiyana W, Punyoyai C, Somwongin S, Leelapornpisid P, Ingkaninan K, Waranuch N, Srivilai J, Thitipramote N, Wisuitiprot W, Schuster R, Viernstein H, Mueller M. Inhibition of 5α-Reductase, IL-6 Secretion, and Oxidation Process of Equisetum debile Roxb. ex Vaucher Extract as Functional Food and Nutraceuticals Ingredients. Nutrients 2017; 9:nu9101105. [PMID: 28994714 PMCID: PMC5691721 DOI: 10.3390/nu9101105] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 09/21/2017] [Accepted: 10/03/2017] [Indexed: 11/25/2022] Open
Abstract
This study aims to investigate the biological activities related to hair loss of Equisetum debile extracts, including 5α-reductase inhibition, interleukin-6 (IL-6) secretion reduction, and anti-oxidation. E. debile extracts were obtained by maceration in various solvents. Crude extract (CE) was obtained by maceration in 95% ethanol. Chlorophyll-free extract (CF) was the CE which of the chlorophyll has been removed by electrocoagulation. Hexane extract (HE), ethyl acetate extract (EA), and ethanolic extract (ET) were fraction extracts obtained from maceration in hexane, ethyl acetate, and 95% ethanol, respectively. The extracts were investigated for inhibitory activity against 5α-reductase and IL-6 secretion. Total phenolic contents (TPC) were investigated and antioxidant activities were determined by means of 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), 2,2′-diphenyl-1-picrylhydrazyl (DPPH), and ferric reducing antioxidant power (FRAP) assays. The inhibition of lipid peroxidation was determined by the ferric thiocyanate method. The cytotoxicity of the extracts on dermal papilla cells and irritation test by hen's egg test chorioallantoic membrane assay were also investigated. All extracts could inhibit 5α-reductase and decrease IL-6 secretion in lipopolysaccharide-stimulated macrophage. The antioxidant activity of E. debile extracts was directly related to their TPC. ET which contained the highest TPC (68.8 ± 6.7 mg GA/g) showed the highest equivalent concentration (EC1) of 289.1 ± 26.4 mM FeSO4/g, TEAC of 156.6 ± 34.6 mM Trolox/g, and 20.0 ± 6.0% DPPH inhibition. However, EA exhibited the highest inhibition against lipid peroxidation (57.2 ± 0.4%). In addition, EA showed no cytotoxicity on dermal papilla cell line and no irritation on chorioallantoic membrane of hen’s eggs. In conclusion, EA was suggested as the most attractive ingredients for functional food and nutraceuticals because of the high inhibitory activity against 5α-reductase, IL-6 secretion, and lipid peroxidation inhibition.
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Affiliation(s)
- Wantida Chaiyana
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Chanun Punyoyai
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Suvimol Somwongin
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Pimporn Leelapornpisid
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
| | - Kornkanok Ingkaninan
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand.
| | - Neti Waranuch
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand.
| | - Jukkarin Srivilai
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand.
| | - Natthawut Thitipramote
- School of Cosmetic Science, Mae Fah Luang University, Muang, Chiang Rai 57100, Thailand.
| | - Wudtichai Wisuitiprot
- Department of Thai Traditional Medicine, Sirindhorn College of Public Health, Phitsanulok 65130, Thailand.
| | - Roswitha Schuster
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
| | - Helmut Viernstein
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
| | - Monika Mueller
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
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20
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Valorisation of softwood bark through extraction of utilizable chemicals. A review. Biotechnol Adv 2017; 35:726-750. [PMID: 28739505 DOI: 10.1016/j.biotechadv.2017.07.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 06/20/2017] [Accepted: 07/11/2017] [Indexed: 01/31/2023]
Abstract
Softwood bark is an important source for producing chemicals and materials as well as bioenergy. Extraction is regarded as a key technology for obtaining chemicals in general, and valorizing bark as a source of such chemicals in particular. In this paper, properties of 237 compounds identified in various studies dealing with extraction of softwood bark were described. Finally, some challenges and perspectives on the production of chemicals from bark are discussed.
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A Review of the Potential of Phytochemicals from Prunus africana (Hook f.) Kalkman Stem Bark for Chemoprevention and Chemotherapy of Prostate Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:3014019. [PMID: 28286531 PMCID: PMC5327751 DOI: 10.1155/2017/3014019] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/22/2017] [Indexed: 01/17/2023]
Abstract
Prostate cancer remains one of the major causes of death worldwide. In view of the limited treatment options for patients with prostate cancer, preventive and treatment approaches based on natural compounds can play an integral role in tackling this disease. Recent evidence supports the beneficial effects of plant-derived phytochemicals as chemopreventive and chemotherapeutic agents for various cancers, including prostate cancer. Prunus africana has been used for generations in African traditional medicine to treat prostate cancer. This review examined the potential roles of the phytochemicals from P. africana, an endangered, sub-Saharan Africa plant in the chemoprevention and chemotherapy of prostate cancer. In vitro and in vivo studies have provided strong pharmacological evidence for antiprostate cancer activities of P. africana-derived phytochemicals. Through synergistic interactions between different effective phytochemicals, P. africana extracts have been shown to exhibit very strong antiandrogenic and antiangiogenic activities and have the ability to kill tumor cells via apoptotic pathways, prevent the proliferation of prostate cancer cells, and alter the signaling pathways required for the maintenance of prostate cancer cells. However, further preclinical and clinical studies ought to be done to advance and eventually use these promising phytochemicals for the prevention and chemotherapy of human prostate cancer.
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22
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Yenuganti VR, Viergutz T, Vanselow J. Oleic acid induces specific alterations in the morphology, gene expression and steroid hormone production of cultured bovine granulosa cells. Gen Comp Endocrinol 2016; 232:134-44. [PMID: 27118706 DOI: 10.1016/j.ygcen.2016.04.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 03/22/2016] [Accepted: 04/22/2016] [Indexed: 01/22/2023]
Abstract
After parturition, one of the major problems related to nutritional management that is faced by the majority of dairy cows is negative energy balance (NEB). During NEB, excessive lipid mobilization takes place and hence the levels of free fatty acids, among them oleic acid, increase in the blood, but also in the follicular fluid. This accumulation can be associated with serious metabolic and reproductive disorders. In the present study, we analyzed the effects of physiological concentrations of oleic acid on cell morphology, apoptosis, necrosis, proliferation and steroid production, and on the abundance of selected transcripts in cultured bovine granulosa cells. Increasing oleic acid concentrations induced intracellular lipid droplet accumulation, thus resulting in a foam cell-like morphology, but had no effects on apoptosis, necrosis or proliferation. Oleic acid also significantly reduced the transcript abundance of the gonadotropin hormone receptors, FSHR and LHCGR, steroidogenic genes STAR, CYP11A1, HSD3B1 and CYP19A1, the cell cycle regulator CCND2, but not of the proliferation marker PCNA. In addition, treatment increased the transcript levels of the fatty acid transporters CD36 and SLC27A1, and decreased the production of 17-beta-estradiol and progesterone. From these data it can be concluded that oleic acid specifically affects morphological and physiological features and gene expression levels thus altering the functionality of granulosa cells. Suggestively, these effects might be partly due to the reduced expression of FSHR and thus the reduced responsiveness to FSH stimulation.
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Affiliation(s)
- Vengala Rao Yenuganti
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Torsten Viergutz
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany
| | - Jens Vanselow
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196 Dummerstorf, Germany.
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Collette TW, Skelton DM, Davis JM, Cavallin JE, Jensen KM, Kahl MD, Villeneuve DL, Ankley GT, Martinović-Weigelt D, Ekman DR. Metabolite profiles of repeatedly sampled urine from male fathead minnows (Pimephales promelas) contain unique lipid signatures following exposure to anti-androgens. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2016; 19:190-198. [PMID: 26810197 DOI: 10.1016/j.cbd.2016.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/10/2015] [Accepted: 01/03/2016] [Indexed: 11/16/2022]
Abstract
The purpose of this study was twofold. First, we sought to identify candidate markers of exposure to anti-androgens by analyzing endogenous metabolite profiles in the urine of male fathead minnows (mFHM, Pimephales promelas). Based on earlier work, we hypothesized that unidentified lipids in the urine of mFHM were selectively responsive to exposure to androgen receptor antagonists, which is otherwise difficult to confirm using established fish toxicity assays. A second goal was to evaluate the feasibility of non-lethally and repeatedly sampling urine from individual mFHMs over the time course of response to a chemical exposure. Accordingly, we exposed mFHM to the model anti-androgens vinclozolin or flutamide. Urine was collected from each fish at 48hour intervals over the course of a 14day exposure. Parallel experiments were conducted with mFHM exposed to bisphenol A or control water. The frequent handling/sampling regime did not cause apparent adverse effects on the fish. Endogenous metabolite profiling was conducted with gas chromatography-mass spectrometry (GC-MS), which exhibited lower variation for the urinary metabolome than was found in earlier work with nuclear magnetic resonance (NMR) spectroscopy. Specifically, for inter- and intra-individual variations, the median spectrum-wide relative standard deviation (RSD) was 32.6% and 33.3%, respectively, for GC-MS analysis of urine from unexposed mFHM. These results compared favorably with similar measurements of urine from other model species, including the Sprague Dawley rat. In addition, GC-MS allowed us to identify several lipids (e.g., certain saturated fatty acids) in mFHM urine as candidate markers of exposure to androgen receptor antagonists.
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Affiliation(s)
| | - David M Skelton
- U.S. EPA, National Exposure Research Laboratory, Athens, GA 30605, USA
| | - John M Davis
- U.S. EPA, National Exposure Research Laboratory, Athens, GA 30605, USA
| | - Jenna E Cavallin
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | - Kathleen M Jensen
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | - Michael D Kahl
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | - Daniel L Villeneuve
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | - Gerald T Ankley
- U.S. EPA, National Health and Environmental Effects Research Laboratory, Duluth, MN 55804, USA
| | | | - Drew R Ekman
- U.S. EPA, National Exposure Research Laboratory, Athens, GA 30605, USA
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Real M, Molina-Molina JM, Jimenez J, Diéguez HR, Fernández MF, Olea N. Assessment of hormone-like activities in Ginkgo biloba, Elettaria cardamomum and Plantago ovata extracts using in vitro receptor-specific bioassays. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 32:1531-41. [PMID: 26161806 DOI: 10.1080/19440049.2015.1071922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Medicinal plants are widely used for the treatment of diseases and for the development of new drugs. This study was designed to determine the presence of hormone-like activities dependent on the activation of human estrogen receptor alpha (hERa) and/or androgen receptor (hAR) in methanol extracts prepared from three medicinal plants historically and currently used for therapeutic purposes: Ginkgo biloba leaves (GBL), Elettaria cardamomum seeds (ECS) and Plantago ovata seeds (POS). After a solid-liquid extraction (SLE) step, their effects on hERa function were assessed in MCF-7 breast cancer cells using the E-Screen bioassay, and their ability to induce hAR-mediated reporter gene expression was evaluated using the androgen-sensitive stable prostatic PALM cell line. Unlike POS extracts, GBL and ECS extracts showed estrogenic (0.07 and 0.20 nM E2Eq mg(-1), respectively) and anti-estrogenic (0.01 and 0.02 μM ICI182780Eq mg(-1), respectively) activities. ECS extracts evidenced androgenic activity (0.30 nM R1881Eq mg(-1)) and POS extracts anti-androgenic activity (22.30 μM ProcEq mg(-1)). According to these findings, these plant extracts may interfere with the endocrine system via one or more hormonal receptors, and further investigation is warranted into their role as endocrine disrupters in humans.
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Affiliation(s)
- Macarena Real
- a Research Support Unit , San Cecilio University Hospital, University of Granada , Granada , Spain
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Antal O, Hackler L, Shen J, Mán I, Hideghéty K, Kitajka K, Puskás LG. Combination of unsaturated fatty acids and ionizing radiation on human glioma cells: cellular, biochemical and gene expression analysis. Lipids Health Dis 2014; 13:142. [PMID: 25182732 PMCID: PMC4176829 DOI: 10.1186/1476-511x-13-142] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 08/18/2014] [Indexed: 12/13/2022] Open
Abstract
Background Based on previous observations a potential resort in the therapy of the particularly radioresistant glioma would be its treatment with unsaturated fatty acids (UFAs) combined with irradiation. Methods We evaluated the effect of different UFAs (arachidonic acid (AA), docosahexaenoic acid (DHA), gamma-linolenic acid (GLA), eicosapentaenoic acid (EPA) and oleic acid (OA)) on human U87 MG glioma cell line by classical biochemical end-point assays, impedance-based, real-time cellular and holographic microscopic analysis. We further analyzed AA, DHA, and GLA at morphological, gene and miRNA expression level. Results Corresponding to LDH-, MTS assays and real-time cytoxicity profiles AA, DHA, and GLA enhanced the radio sensitivity of glioma cells. The collective application of polyunsaturated fatty acids (PUFAs) and irradiation significantly changed the expression of EGR1, TNF-α, NOTCH1, c-MYC, TP53, HMOX1, AKR1C1, NQO1, while up-regulation of GADD45A, EGR1, GRP78, DDIT3, c-MYC, FOSL1 were recorded both in response to PUFA treatment or irradiation alone. Among the analyzed miRNAs miR-146 and miR-181a were induced by DHA treatment. Overexpression of miR-146 was also detected by combined treatment of GLA and irradiation. Conclusions Because PUFAs increased the radio responsiveness of glioma cells as assessed by biochemical and cellular assays, they might increase the therapeutic efficacy of radiation in treatment of gliomas. We demonstrated that treatment with DHA, AA and GLA as adjunct to irradiation up-regulated the expression of oxidative-stress and endoplasmic reticulum stress related genes, and affected NOTCH1 expression, which could explain their additive effects. Electronic supplementary material The online version of this article (doi:10.1186/1476-511X-13-142) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | - László G Puskás
- Laboratory for Functional Genomics, Institute of Genetics, Biological Research Center of the Hungarian Academy of Sciences, Szeged H-6726, Hungary.
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Seres AB, Ducza E, Báthori M, Hunyadi A, Béni Z, Dékány M, Hajagos-Tóth J, Verli J, Gáspár R. Androgenic effect of honeybee drone milk in castrated rats: roles of methyl palmitate and methyl oleate. JOURNAL OF ETHNOPHARMACOLOGY 2014; 153:446-453. [PMID: 24607508 DOI: 10.1016/j.jep.2014.02.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 02/20/2014] [Accepted: 02/26/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Numerous honeybee (Apis mellifera) products have been used in traditional medicine to treat infertility and to increase vitality in both men and women. Drone milk (DM) is a relatively little-known honeybee product with a putative sexual hormone effect. The oestrogenic effect of a fraction of DM has recently been reported in rats. However, no information is available on the androgenic effects of DM. The purpose of the present study was to determine the androgen-like effect of DM in male rats and to identify effective compounds. MATERIALS AND METHODS A modified Hershberger assay was used to investigate the androgenic effect of crude DM, and the plasma level of testosterone was measured. The prostatic mRNA and protein expression of Spot14-like androgen-inducible protein (SLAP) were also examined with real-time PCR and Western blot techniques. GC-MS and NMR spectroscopic investigations were performed to identify the active components gained by bioactivity-guided fractionation. RESULTS The crude DM increased the relative weights of the androgen-dependent organs and the plasma testosterone level in castrated rats and these actions were flutamide-sensitive. DM increased the tissue mRNA and protein level of SLAP, providing further evidence of its androgen-like character. After bioactivity-guided fractionation, two fatty acid esters, methyl palmitate (MP) and methyl oleate (MO), were identified as active compounds. MP alone showed an androgenic effect, whereas MO increased the weight of androgen-sensitive tissues and the plasma testosterone level only in combination. CONCLUSION The experimental data of DM and its active compounds (MO and MP) show androgenic activity confirming the traditional usage of DM. DM or MP or/and MO treatments may project a natural mode for the therapy of male infertility.
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Affiliation(s)
- A B Seres
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, H-6701, P.O. Box 121, Hungary.
| | - E Ducza
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, H-6701, P.O. Box 121, Hungary.
| | - M Báthori
- Institute of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary.
| | - A Hunyadi
- Institute of Pharmacognosy, Faculty of Pharmacy, University of Szeged, Eötvös utca 6, H-6720 Szeged, Hungary.
| | - Z Béni
- Spectroscopic Research, Gedeon Richter Plc., Gyömrői út 19-21, H-1103 Budapest, Hungary.
| | - M Dékány
- Spectroscopic Research, Gedeon Richter Plc., Gyömrői út 19-21, H-1103 Budapest, Hungary.
| | - J Hajagos-Tóth
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, H-6701, P.O. Box 121, Hungary.
| | - J Verli
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, H-6701, P.O. Box 121, Hungary.
| | - Róbert Gáspár
- Department of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, H-6701, P.O. Box 121, Hungary.
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Carleton AJ, Sievenpiper JL, de Souza R, McKeown-Eyssen G, Jenkins DJA. Case-control and prospective studies of dietary α-linolenic acid intake and prostate cancer risk: a meta-analysis. BMJ Open 2013; 3:bmjopen-2012-002280. [PMID: 23674441 PMCID: PMC3657642 DOI: 10.1136/bmjopen-2012-002280] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE α-Linolenic acid (ALA) is considered to be a cardioprotective nutrient; however, some epidemiological studies have suggested that dietary ALA intake increases the risk of prostate cancer. The main objective was to conduct a systematic review and meta-analysis of case-control and prospective studies investigating the association between dietary ALA intake and prostate cancer risk. DESIGN A systematic review and meta-analysis were conducted by searching MEDLINE and EMBASE for relevant prospective and case-control studies. INCLUDED STUDIES We included all prospective cohort, case-control, nested case-cohort and nested case-control studies that investigated the effect of dietary ALA intake on the incidence (or diagnosis) of prostate cancer and provided relative risk (RR), HR or OR estimates. PRIMARY OUTCOME MEASURE Data were pooled using the generic inverse variance method with a random effects model from studies that compared the highest ALA quantile with the lowest ALA quantile. Risk estimates were expressed as RR with 95% CIs. Heterogeneity was assessed by χ(2) and quantified by I(2). RESULTS Data from five prospective and seven case-control studies were pooled. The overall RR estimate showed ALA intake to be positively but non-significantly associated with prostate cancer risk (1.08 (0.90 to 1.29), p=0.40; I(2)=85%), but the interpretation was complicated by evidence of heterogeneity not explained by study design. A weak, non-significant protective effect of ALA intake on prostate cancer risk in the prospective studies became significant (0.91 (0.83 to 0.99), p=0.02) without evidence of heterogeneity (I(2)=8%, p=0.35) on removal of one study during sensitivity analyses. CONCLUSIONS This analysis failed to confirm an association between dietary ALA intake and prostate cancer risk. Larger and longer observational and interventional studies are needed to define the role of ALA and prostate cancer.
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Affiliation(s)
- Amanda J Carleton
- Clinical Nutrition and Risk Factor Modification Centre and Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - John L Sievenpiper
- Clinical Nutrition and Risk Factor Modification Centre and Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Toronto, Ontario, Canada
| | - Russell de Souza
- Clinical Nutrition and Risk Factor Modification Centre and Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Nutrition, Harvard School of Public Health, Harvard University, Boston, Massachusetts, USA
- Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, Ontario, Canada
| | - Gail McKeown-Eyssen
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - David J A Jenkins
- Clinical Nutrition and Risk Factor Modification Centre and Keenan Research Centre of the Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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Phelan N, O'Connor A, Kyaw Tun T, Correia N, Boran G, Roche HM, Gibney J. Hormonal and metabolic effects of polyunsaturated fatty acids in young women with polycystic ovary syndrome: results from a cross-sectional analysis and a randomized, placebo-controlled, crossover trial. Am J Clin Nutr 2011; 93:652-62. [PMID: 21270384 DOI: 10.3945/ajcn.110.005538] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is characterized by an adverse metabolic profile. Although dietary changes are advocated, optimal nutritional management remains uncertain. Polyunsaturated fatty acids (PUFAs), particularly long-chain (LC) n-3 (omega-3) PUFAs, improve metabolic health, but their therapeutic potential in PCOS is unknown. OBJECTIVES We aimed to determine the associations between plasma PUFAs and metabolic and hormonal aspects of PCOS to investigate the efficacy of LC n-3 PUFA supplementation and to support the findings with mechanistic cellular studies. DESIGN We selected a cross-sectional PCOS cohort (n = 104) and conducted a principal component analysis on plasma fatty acid profiles. Effects of LC n-3 PUFA supplementation on fasting and postprandial metabolic and hormonal markers were determined in PCOS subjects (n = 22) by a randomized, crossover, placebo-controlled intervention. Direct effects of n-6 (omega-6) compared with n-3 PUFAs on steroidogenesis were investigated in primary bovine theca cells. RESULTS Cross-sectional data showed that a greater plasma n-6 PUFA concentration and n-6:n-3 PUFA ratio were associated with higher circulating androgens and that plasma LC n-3 PUFA status was associated with a less atherogenic lipid profile. LC n-3 PUFA supplementation reduced plasma bioavailable testosterone concentrations (P < 0.05), with the greatest reductions in subjects who exhibited greater reductions in plasma n-6:n-3 PUFA ratios. The treatment of bovine theca cells with n-6 rather than with n-3 PUFAs up-regulated androstenedione secretion (P < 0.05). CONCLUSIONS Cross-sectional data suggest that PUFAs modulated hormonal and lipid profiles and that supplementation with LC n-3 PUFAs improves androgenic profiles in PCOS. In bovine theca cells, arachidonic acid modulated androstenedione secretion, which suggests an indirect effect of n-3 PUFAs through the displacement of or increased competition with n-6 PUFAs. This trial was registered at clinicaltrials.gov as NCT01189669.
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Affiliation(s)
- Niamh Phelan
- Department of Endocrinology, Adelaide and Meath Hospital, Incorporating the National Children's Hospital, Dublin, Ireland
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Zecchin KG, Alberici LC, Riccio MF, Eberlin MN, Vercesi AE, Graner E, Catharino RR. Visualizing inhibition of fatty acid synthase through mass spectrometric analysis of mitochondria from melanoma cells. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:449-452. [PMID: 21213365 DOI: 10.1002/rcm.4875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Fatty acid synthase (FASN) is the metabolic enzyme responsible for the endogenous synthesis of the saturated long-chain fatty acid palmitate. In contrast to most normal cells, FASN is overexpressed in a variety of human cancers including cutaneous melanoma, in which its levels of expression are associated with a poor prognosis and depth of invasion. Recently, we have demonstrated the mitochondrial involvement in FASN inhibition-induced apoptosis in melanoma cells. Herein we compare, via electrospray ionization mass spectrometry (ESI-MS), free fatty acids (FFA) composition of mitochondria isolated from control (EtOH-treated cells) and Orlistat-treated B16-F10 mouse melanoma cells. Principal component analysis (PCA) was applied to the ESI-MS data and found to separate the two groups of samples. Mitochondria from control cells showed predominance of six ions, that is, those of m/z 157 (Pelargonic, 9:0), 255 (Palmitic, 16:0), 281 (Oleic, 18:1), 311 (Arachidic, 20:0), 327 (Docosahexaenoic, 22:6) and 339 (Behenic, 22:0). In contrast, FASN inhibition with Orlistat changes significantly mitochondrial FFA composition by reducing synthesis of palmitic acid, and its elongation and unsaturation products, such as arachidic and behenic acids, and oleic acid, respectively. ESI-MS of mitochondria isolated from Orlistat-treated cells presented therefore three major ions of m/z 157 (Pelargonic, 9:0), 193 (unknown) and 199 (Lauric, 12:0). These findings demonstrate therefore that FASN inhibition by Orlistat induces significant changes in the FFA composition of mitochondria.
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Affiliation(s)
- Karina G Zecchin
- Departamento de Diagnóstico Oral, Faculdade de Odontologia de Piracicaba, Universidade Estadual de Campinas (UNICAMP), Piracicaba, SP, 13414-018, Brazil.
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