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Rocha VA, Aquino AM, Magosso N, Souza PV, Justulin LA, Domeniconi RF, Barbisan LF, Romualdo GR, Scarano WR. 2,4-dichlorophenoxyacetic acid (2,4-D) exposure during postnatal development alters the effects of western diet on mouse prostate. Reprod Toxicol 2023; 120:108449. [PMID: 37516258 DOI: 10.1016/j.reprotox.2023.108449] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
Western diet (WD), abundant in saturated fats and simple carbohydrates, has been associated with the development of prostate diseases. In addition, 2,4-dichlorophenoxyacetic acid (2,4-D), an herbicide used in agricultural and non-agricultural settings, may interfere with the endocrine system impacting reproductive health. The association of both factors is something common in everyday life, however, there are no relevant studies associating them as possible modulators of prostatic diseases. This study evaluated the action of the herbicide 2,4-D on the postnatal development of the prostate in mice fed with WD. Male C57Bl/6J mice received simultaneously a WD and 2,4-D at doses of 0.02, 2.0, or 20.0 mg/kg b.w./day for 6 months. The prolongated WD intake induced obesity and glucose intolerance, increasing body weight and fat. WD induced morphological changes and increased PCNA-positive epithelial cells in prostate. Additionally, the WD increased gene expression of AR, antioxidant targets, inflammation-related cytokines, cell repair and turnover, and targets related to methylation and miRNAs biosynthesis compared to the counterpart (basal diet). 2,4-D (0.02 and 2.0) changed prostate morphology and gene expression evoked by WD. In contrast, the WD group exposed to 20 mg/kg of 2,4-D reduced feed intake and body weight, and increased expression of androgen receptor and genes related to cell repair and DNA methylation compared to the negative control. Our results showed that 2,4-D was able to modulate the effects caused by WD, mainly at lower doses. However, further studies are needed to elucidate the mechanisms of 2,4-D on the obesogenic environment caused by the WD.
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Affiliation(s)
- V A Rocha
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - A M Aquino
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - N Magosso
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - P V Souza
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - L A Justulin
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - R F Domeniconi
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - L F Barbisan
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - G R Romualdo
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil; São Paulo State University (UNESP), Botucatu Medical School, Experimental Research Unit (UNIPEX), Multimodel Drug Screening Platform - Laboratory of Chemically induced and Experimental Carcinogenesis (MDSP-LCQE), Botucatu, SP, Brazil
| | - W R Scarano
- São Paulo State University (UNESP), Department of Structural and Functional Biology, Institute of Biosciences, Botucatu, São Paulo, Brazil.
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2
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He H, Luo H, Xu H, Qian B, Zou X, Zhang G, Zeng F, Zou J. Preclinical models and evaluation criteria of prostatitis. Front Immunol 2023; 14:1183895. [PMID: 37228599 PMCID: PMC10203503 DOI: 10.3389/fimmu.2023.1183895] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
Prostatitis is a common urological condition that affects almost half of all men at some point in their life. The prostate gland has a dense nerve supply that contributes to the production of fluid to nourish sperm and the mechanism to switch between urination and ejaculation. Prostatitis can cause frequent urination, pelvic pain, and even infertility. Long-term prostatitis increases the risk of prostate cancer and benign prostate hyperplasia. Chronic non-bacterial prostatitis presents a complex pathogenesis, which has challenged medical research. Experimental studies of prostatitis require appropriate preclinical models. This review aimed to summarize and compare preclinical models of prostatitis based on their methods, success rate, evaluation, and range of application. The objective of this study is to provide a comprehensive understanding of prostatitis and advance basic research.
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Affiliation(s)
- Hailan He
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Hui Luo
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Hui Xu
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Institute of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, Jiangxi, China
| | - Biao Qian
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Institute of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, Jiangxi, China
| | - Xiaofeng Zou
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Institute of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, Jiangxi, China
| | - Guoxi Zhang
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Institute of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, Jiangxi, China
| | - Fei Zeng
- The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi, China
| | - Junrong Zou
- Department of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Institute of Urology, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Urology, Jiangxi Engineering Technology Research Center of Calculi Prevention, Ganzhou, Jiangxi, China
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3
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Bleeker J, Wang ZA. Applications of Vertebrate Models in Studying Prostatitis and Inflammation-Associated Prostatic Diseases. Front Mol Biosci 2022; 9:898871. [PMID: 35865005 PMCID: PMC9294738 DOI: 10.3389/fmolb.2022.898871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 06/17/2022] [Indexed: 12/05/2022] Open
Abstract
It has long been postulated that the inflammatory environment favors cell proliferation, and is conducive to diseases such as cancer. In the prostate gland, clinical data implicate important roles of prostatitis in the progression of both benign prostatic hyperplasia (BPH) and prostate cancer (PCa). However, their causal relationships have not been firmly established yet due to unresolved molecular and cellular mechanisms. By accurately mimicking human disease, vertebrate animals provide essential in vivo models to address this question. Here, we review the vertebrate prostatitis models that have been developed and discuss how they may reveal possible mechanisms by which prostate inflammation promotes BPH and PCa. Recent studies, particularly those involving genetically engineered mouse models (GEMMs), suggest that such mechanisms are multifaceted, which include epithelium barrier disruption, DNA damage and cell proliferation induced by paracrine signals, and expansion of potential cells of origin for cancer. Future research using rodent prostatitis models should aim to distinguish the etiologies of BPH and PCa, and facilitate the development of novel clinical approaches for prostatic disease prevention.
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Simvastatin inhibits prostatic hyperplasia in rats with metabolic syndrome. Int Urol Nephrol 2022; 54:2125-2131. [PMID: 35691993 DOI: 10.1007/s11255-022-03227-z] [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: 02/02/2022] [Accepted: 04/25/2022] [Indexed: 10/18/2022]
Abstract
OBJECTS To evaluate the influence of metabolic syndrome (MetS) induced by high fat diet (HFD) on prostate tissue and local inflammatory factors in rats model, and the protective efficacy of statins against pathological changes of prostate. METHODS 40 Sprague-Dawley rats were divided into 4 subgroups of normal diet (ND), HFD blank, HFD + saline and HFD + simvastatin. After the establishment of models, all subjects were killed to obtain body weight serum lipid, FBG level, FINS and HOMA-IR level. Hyperplasia level of prostate, as well as expression level of interleukin 6 (IL-6), insulin-like growth factor 1 (IGF-1), interleukin 10 (IL-10) and tumor necrosis factor alpha (TNF-α) were also measured. RESULTS Models have been successfully established. Level of serum lipid, prostatic weight, hyperplasia as well as expressions of IL-6, TNF-α and IGF-1 in the blank and saline subgroups of HFD group were higher than that of ND group (P < 0.05). While simvastatin has significantly resisted the former effects of HFD on serum lipid and prostate (P < 0.05). No significant difference in serum FBG level was found between groups and subunits. FINS levels of ND group was lower than other groups (P < 0.05). In addition, There is no significant difference in FPG and HOMA-IR levels in blank control subunit, saline control subunit, simvastatin subunit (P > 0.05). CONCLUSIONS MetS induced by HFD is an important factor in the induction of BPH. Simvastatin can alleviate the hyperplasia of prostate through the relief of local inflammation in prostatic tissue.
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Cai C, Hu W, Zhang Y, Hu X, Yang S, Qiu H, Wang R, Ma M, Qiu Y, Chu T. BCI Suppresses RANKL-Mediated Osteoclastogenesis and Alleviates Ovariectomy-Induced Bone Loss. Front Pharmacol 2021; 12:772540. [PMID: 34803714 PMCID: PMC8596812 DOI: 10.3389/fphar.2021.772540] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Osteoporosis is a common aging-related metabolic disease that mainly occurs in older adults and postmenopausal women. Despite advances in anti-osteoporosis treatment, outcomes remain unsatisfactory due to detrimental side effects. BCI hydrochloride (BCI), a selective dual-specificity phosphatase 6 (DUSP6) inhibitor, is associated with multiple cellular functions, including inhibiting tumor growth and macrophage inflammation; however, its role in regulating osteoclast differentiation remains unknown. Here, we revealed that treatment with BCI attenuated RANKL-mediated osteoclast differentiation in vitro and alleviated ovariectomy-induced osteoporosis without obvious toxicity. Specifically, BCI disrupted F-actin ring formation and bone-resorption activity and decreased osteoclast-specific gene and protein levels in a dose-dependent manner. KEGG pathway analysis, GSEA based on transcriptome sequencing, and western blot results suggested that BCI inhibited RANKL-induced osteoclastogenesis by restraining STAT3 and NF-κB signaling and attenuating NF-κB/p65 interaction with NFATc1. These results revealed that BCI treatment prevented postmenopausal osteoporosis and might represent an effective approach for treating osteoporosis.
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Affiliation(s)
- Chenhui Cai
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing, China
| | - Ying Zhang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Xu Hu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Sizhen Yang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Hao Qiu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Rujie Wang
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Min Ma
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yiyun Qiu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Tongwei Chu
- Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing, China
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Epstein RJ. The secret identities of TMPRSS2: Fertility factor, virus trafficker, inflammation moderator, prostate protector and tumor suppressor. Tumour Biol 2021; 43:159-176. [PMID: 34420994 DOI: 10.3233/tub-211502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The human TMPRSS2 gene is pathogenetically implicated in both coronaviral lung infection and prostate cancer, suggesting its potential as a drug target in both contexts. SARS-COV-2 spike polypeptides are primed by the host transmembrane TMPRSS2 protease, triggering virus fusion with epithelial cell membranes followed by an endocytotic internalisation process that bypasses normal endosomal activation of cathepsin-mediated innate immunity; viral co-opting of TMPRSS2 thus favors microbial survivability by attenuating host inflammatory responses. In contrast, most early hormone-dependent prostate cancers express TMPRSS2:ERG fusion genes arising from deletions that eliminate the TMPRSS2 coding region while juxtaposing its androgen-inducible promoter and the open reading frame of ERG, upregulating pro-inflammatory ERG while functionally disabling TMPRSS2. Moreover, inflammatory oxidative DNA damage selects for TMPRSS2:ERG-fused cancers, whereas patients treated with antiinflammatory drugs develop fewer of these fusion-dependent tumors. These findings imply that TMPRSS2 protects the prostate by enabling endosomal bypass of pathogens which could otherwise trigger inflammation-induced DNA damage that predisposes to TMPRSS2:ERG fusions. Hence, the high oncogenic selectability of TMPRSS2:ERG fusions may reflect a unique pro-inflammatory synergy between androgenic ERG gain-of-function and fusogenic TMPRSS2 loss-of-function, cautioning against the use of TMPRSS2-inhibitory drugs to prevent or treat early prostate cancer.
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Affiliation(s)
- Richard J Epstein
- New Hope Cancer Center, Beijing United Hospital, Jiangtai Xi Rd 9-11, Chaoyang, Beijing, China.,Garvan Institute of Medical Research, and UNSW Medical School, St Vincent's Hospital, Victoria St, Darlinghurst, Sydney, Australia
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7
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Saber S, Abd El-Fattah EE, Yahya G, Gobba NA, Maghmomeh AO, Khodir AE, Mourad AAE, Saad AS, Mohammed HG, Nouh NA, Shata A, Amin NA, Abou El-Rous M, Girgis S, El-Ahwany E, Khalaf EM, El-Kott AF, El-Baz AM. A Novel Combination Therapy Using Rosuvastatin and Lactobacillus Combats Dextran Sodium Sulfate-Induced Colitis in High-Fat Diet-Fed Rats by Targeting the TXNIP/NLRP3 Interaction and Influencing Gut Microbiome Composition. Pharmaceuticals (Basel) 2021; 14:ph14040341. [PMID: 33917884 PMCID: PMC8068273 DOI: 10.3390/ph14040341] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/31/2021] [Accepted: 04/06/2021] [Indexed: 12/13/2022] Open
Abstract
Inflammasome targeting and controlling dysbiosis are promising therapeutic approaches to control ulcerative colitis. This report is the first to investigate the mechanisms underlying the coloprotective effects of rosuvastatin and Lactobacillus and their combined therapy on dextran sodium sulfate (DSS)-induced colitis in high-fat diet (HFD)-fed rats. Our results demonstrate the aggravation of intestinal inflammation as a consequence of an HFD following DSS administration. An association between dyslipidemia, LDL oxidation, CD36 expression, ROS generation, thioredoxin-interacting protein (TXNIP) upregulation, and NLRP3 inflammasome activation was demonstrated by DSS exposure in HFD-fed rats. We demonstrated that rosuvastatin/Lactobacillus significantly suppressed the DSS/HFD-induced increase in colon weight/length ratio, DAI, MDI, and myeloperoxidase, as well as corrected dysbiosis and improved histological characteristics. Additionally, caspase-1 activity and IL-1β-driven pyroptotic activity was significantly reduced. Rosuvastatin/Lactobacillus showed prominent anti-inflammatory effects as revealed by the IL-10/IL-12 ratio and the levels of TNF-α and IL-6. These latter effects may be attributed to the inhibition of phosphorylation-induced activation of NF-κB and a concomitant reduction in the expression of NLRP3, pro-IL-1β, and pro-IL-18. Furthermore, rosuvastatin/Lactobacillus reduced Ox-LDL-induced TXNIP and attenuated the inflammatory response by inhibiting NLRP3 inflammasome assembly. To conclude, rosuvastatin/Lactobacillus offers a safe and effective strategy for the management of ulcerative colitis.
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Affiliation(s)
- Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
- Correspondence: (S.S.); or (A.M.E.-B.); Tel.: +2-01033124949 (S.S.); +2-01069096934 (A.M.E.-B.); Fax: +2-050-2770140 (S.S. & A.M.E.-B.)
| | - Eslam E. Abd El-Fattah
- Department of Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt;
| | - Galal Yahya
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Al Sharqia 44519, Egypt;
| | - Naglaa A. Gobba
- Department of Pharmacology and Toxicology, College of Pharmacy, Misr University for Science and Technology, Giza 12411, Egypt; or
| | - Abdalkareem Omar Maghmomeh
- Department of Biochemistry, Faculty of Pharmacy, Arab Private University for Science and Technology, Hama 1293400, Syria; or
| | - Ahmed E. Khodir
- Department of Pharmacology, Faculty of Pharmacy, Horus University-Egypt, New Damietta 34518, Egypt; or
| | - Ahmed A. E. Mourad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt; (A.A.E.M.); (A.S.S.)
| | - Ahmed S. Saad
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt; (A.A.E.M.); (A.S.S.)
| | | | - Nehal A. Nouh
- Department of Microbiology, Albatterjee Medical College, Jeddah 6231, Saudi Arabia;
| | - Ahmed Shata
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt;
- Department of Clinical Pharmacy, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
| | - Noha A. Amin
- Department of Haematology, Theodor Bilharz Research Institute, Giza 12411, Egypt; or
| | - Magdy Abou El-Rous
- Department of Biochemistry, Faculty of Pharmacy, Helwan University, Cairo 11795, Egypt; or
| | - Samuel Girgis
- Department of Pharmaceutics, Faculty of Pharmacy, Alsalam University, Kafr El-Zayat 31612, Egypt;
| | - Eman El-Ahwany
- Department of Immunology, Theodor Bilharz Research Institute, Giza 12411, Egypt;
| | - Eman M. Khalaf
- Department of Microbiology and Immunology, Faculty of Pharmacy, Damanhour University, Damanhour 22511, Egypt;
| | - Attalla F. El-Kott
- Department of Biology, College of Science, King Khalid University, Abha 61421, Saudi Arabia;
- Department of Zoology, Faculty of Science, Damanhour University, Damanhour 22511, Egypt
| | - Ahmed M. El-Baz
- Department of Microbiology and Biotechnology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
- Correspondence: (S.S.); or (A.M.E.-B.); Tel.: +2-01033124949 (S.S.); +2-01069096934 (A.M.E.-B.); Fax: +2-050-2770140 (S.S. & A.M.E.-B.)
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8
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Bousset L, Septier A, Bunay J, Voisin A, Guiton R, Damon-Soubeyrant C, Renaud Y, De Haze A, Sapin V, Fogli A, Rambur A, De Joussineau C, Kocer A, Trousson A, Henry-Berger J, Höring M, Liebisch G, Matysik S, Lobaccaro JMA, Morel L, Baron S. Absence of nuclear receptors LXRs impairs immune response to androgen deprivation and leads to prostate neoplasia. PLoS Biol 2020; 18:e3000948. [PMID: 33284790 PMCID: PMC7752095 DOI: 10.1371/journal.pbio.3000948] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 12/21/2020] [Accepted: 11/12/2020] [Indexed: 12/22/2022] Open
Abstract
Chronic inflammation is now a well-known precursor for cancer development. Infectious prostatitis are the most common causes of prostate inflammation, but emerging evidence points the role of metabolic disorders as a potential source of cancer-related inflammation. Although the widely used treatment for prostate cancer based on androgen deprivation therapy (ADT) effectively decreases tumor size, it also causes profound alterations in immune tumor microenvironment within the prostate. Here, we demonstrate that prostates of a mouse model invalidated for nuclear receptors liver X receptors (LXRs), crucial lipid metabolism and inflammation integrators, respond in an unexpected way to androgen deprivation. Indeed, we observed profound alterations in immune cells composition, which was associated with chronic inflammation of the prostate. This was explained by the recruitment of phagocytosis-deficient macrophages leading to aberrant hyporesponse to castration. This phenotypic alteration was sufficient to allow prostatic neoplasia. Altogether, these data suggest that ADT and inflammation resulting from metabolic alterations interact to promote aberrant proliferation of epithelial prostate cells and development of neoplasia. This raises the question of the benefit of ADT for patients with metabolic disorders.
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Affiliation(s)
- Laura Bousset
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Amandine Septier
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Julio Bunay
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Allison Voisin
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | - Rachel Guiton
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | | | - Yoan Renaud
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | - Angélique De Haze
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | - Vincent Sapin
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | - Anne Fogli
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | - Amandine Rambur
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Cyrille De Joussineau
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Ayhan Kocer
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Amalia Trousson
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Joëlle Henry-Berger
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
| | - Marcus Höring
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Gerhard Liebisch
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Silke Matysik
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Jean-Marc A. Lobaccaro
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Laurent Morel
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
| | - Silvère Baron
- Université Clermont Auvergne, GReD, CNRS UMR 6293, INSERM U1103, Clermont-Ferrand, France
- Centre de Recherche en Nutrition Humaine d’Auvergne, Clermont-Ferrand, France
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9
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Lamas CA, Kido LA, Hermes TA, Nogueira-Lima E, Minatel E, Collares-Buzato CB, Maróstica MR, Cagnon VHA. Brazilian berry extract (Myrciaria jaboticaba): A promising therapy to minimize prostatic inflammation and oxidative stress. Prostate 2020; 80:859-871. [PMID: 32460430 DOI: 10.1002/pros.24017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 05/11/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Brazilian berry is a fruit popularly known as "Jaboticaba," rich in bioactive compounds with antioxidant and anti-inflammatory properties. Senescence and overweight are increasing worldwide and are considered risk factors to prostatic pathogenesis mainly due to oxidative and inflammatory processes induction. Thus, this study aimed to evaluate the effect of two increasing doses of the patented jaboticaba peel extract (PJE) on oxidative-stress and inflammation in the prostate of aging or high-fat-fed aging mice. METHODS PJE and/or high-fat diet (HFD) treatments started with 11-month-old mice and lasted 60 days. The levels or the immunoexpression of different inflammatory (nuclear factor κB [NFκB], CD3+, cyclooxygenase 2 [COX-2], toll-like receptor 4 [TLR4], phosphorylated signal transducers and activators of transcription 3 [pSTAT-3], tumor necrosis factor α [TNF-α], interleukin 6 [IL-6], and IL-1β) and oxidative-stress (catalase, superoxide dismutase 2 [SOD2], glutathione reductase [GSR], reduced glutathione, and glutathione peroxidase 3 [GPx3]) related molecules were analyzed by western-blotting, immunohistochemistry, and enzyme-linked immunosorbent assays. RESULTS Both PJE doses reduced the levels of oxidative-stress-related molecules (GPx3, GSR, catalase), lipid peroxidation (4-hydroxynonenal), inflammatory mediators (COX-2, TNF-α, and pSTAT-3) and CD3+ T cells number, which were associated with the maintenance of the glandular morphological integrity in aging and HFD-fed-aging mice. Nevertheless, only the high PJE dose reduced the NFκB and TLR4 levels in aging mice; and SOD2, IL-6, and IL-1β levels in HFD-aging mice. Aging itself promoted an oxidative inflammation in the prostate, interfering in the levels of the different oxidative-stress, lipid peroxidation, and inflammatory mediators evaluated, in association with high incidence of prostate epithelial and stromal damages. The HFD intake intensified aging alterations, showing an unfavorable prostatic microenvironment prone to oxidative and inflammatory damages. CONCLUSIONS PJE exerted a dose-dependent effect controlling inflammation and oxidative-stress in aging and HFD-fed aging mice prostate. This fact contributed to prostate microenvironment balance recovery, preserving the tissue architecture of this gland. Thus, the PJE emerges as a potential therapy to prevent inflammation and oxidative stress in the prostate.
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Affiliation(s)
- Celina A Lamas
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, São Paulo, Brazil
| | - Larissa A Kido
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, São Paulo, Brazil
- Department of Food and Nutrition, School of Food Engineering, University of Campinas, São Paulo, Brazil
| | - Túlio A Hermes
- Department of Morphology and Physiology, ABC Medical School, Santo Andre, São Paulo, Brazil
| | - Ellen Nogueira-Lima
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, São Paulo, Brazil
| | - Elaine Minatel
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, São Paulo, Brazil
| | - Carla B Collares-Buzato
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, São Paulo, Brazil
| | - Mário R Maróstica
- Department of Food and Nutrition, School of Food Engineering, University of Campinas, São Paulo, Brazil
| | - Valéria H A Cagnon
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, São Paulo, Brazil
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10
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Chen Y, Wang Y, Hu J, Tang Y, Tian Z, Hu W, Zeng F, Tan J, Dai Q, Hou Z, Luo F, Xu J, Dong S. Epothilone B prevents lipopolysaccharide-induced inflammatory osteolysis through suppressing osteoclastogenesis via STAT3 signaling pathway. Aging (Albany NY) 2020; 12:11698-11716. [PMID: 32527985 PMCID: PMC7343516 DOI: 10.18632/aging.103337] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 05/18/2020] [Indexed: 12/25/2022]
Abstract
Inflammatory osteolysis is a common osteolytic specificity that occurs during infectious orthopaedic surgery and is characterized by an imbalance in bone homeostasis due to excessive osteoclast bone resorption activity. Epothilone B (Epo B) induced α-tubulin polymerization and enhanced microtubule stability, which also played an essential role in anti-inflammatory effect on the regulation of many diseases. However, its effects on skeletal system have rarely been investigated. Our study demonstrated that Epo B inhibited osteoclastogenesis in vitro and prevented inflammatory osteolysis in vivo. Further analysis showed that Epo B also markedly induced mature osteoclasts apoptosis during osteoclastogenesis. Mechanistically, Epo B directly suppressed osteoclastogenesis by the inhibitory regulation of the phosphorylation and activation of PI3K/Akt/STAT3 signaling directly, and the suppressive regulation of the CD9/gp130/STAT3 signaling pathway indirectly. The negative regulatory effect on STAT3 signaling further restrained the translocation of NF-κB p65 and NFATc1 from the cytosol to the nuclei during RANKL stimulation. Additionally, the expression of osteoclast specific genes was also significantly attenuated during osteoclast fusion and differentiation. Taken together, these findings illustrated that Epo B protected against LPS-induced bone destruction through inhibiting osteoclastogenesis via regulating the STAT3 dependent signaling pathway.
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Affiliation(s)
- Yueqi Chen
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yiran Wang
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Junxian Hu
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yong Tang
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zhansong Tian
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Fanchun Zeng
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jiulin Tan
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Qijie Dai
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zhiyong Hou
- Department of Orthopaedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang 050051, Hebei, China
| | - Fei Luo
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jianzhong Xu
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Shiwu Dong
- Department of Biomedical Materials Science, Third Military Medical University (Army Medical University), Chongqing 400038, China
- The Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University (Army Medical University), Chongqing 400038, China
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11
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Calmasini FB, McCarthy CG, Wenceslau CF, Priviero FBM, Antunes E, Webb RC. Toll-like receptor 9 regulates metabolic profile and contributes to obesity-induced benign prostatic hyperplasia in mice. Pharmacol Rep 2020; 72:179-187. [PMID: 32016843 DOI: 10.1007/s43440-019-00010-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/27/2019] [Accepted: 09/10/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND Benign prostatic hyperplasia (BPH) is associated with obesity and prostatic inflammation. The present study investigated the participation of toll-like receptor 9 (TLR9) in obesity-induced BPH, focusing on metabolic impairments, damage-associated molecular patterns (DAMP) levels and prostatic oxidative stress generation. METHODS C57BL/6 (WT) and TLR9 mutant male mice were fed with regular or high-fat diet for 12 weeks. Metabolic profile, functional protocols, reactive-oxygen species (ROS) generation, prostatic histological analysis and DAMP levels were analyzed. Western blotting for prostatic TLR9 signaling pathway was also performed. RESULTS BPH in WT obese animals was characterized by increased prostate weight, smooth muscle hypercontractility and prostatic epithelial hyperplasia. Higher epididymal fat weight and prostatic ROS generation along with increased fasting glucose, triglyceride and circulating DAMP levels were also observed in WT obese group. Conversely, TLR9 mutant obese animals exhibited lower epididymal fat weight, fasting glucose and triglyceride levels associated with reduced prostate hypercontractility, prostatic ROS and circulating DAMP levels. However, TLR9 mutant obese mice were not protected from obesity-associated prostatic overgrowth and epithelial hyperplasia. Interestingly, TLR9 mutant lean mice exhibited augmented fasting glucose and prostatic ROS levels compared with WT lean mice. Despite increased prostatic expression of TLR9 in WT obese mice, no differences were seen in MyD88 expression between groups. CONCLUSION Improved obesity-induced BPH-related prostatic smooth muscle hypercontractility in TLR9 obese mice may be associated with amelioration in the metabolic profile, ROS and DAMP generation. Therefore, TLR9 could be a valuable target to improve obesity-associated metabolic disorders and prostate smooth muscle hypercontractility in BPH.
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Affiliation(s)
- Fabiano B Calmasini
- Department of Physiology, Augusta University, 1120 15th Street, Augusta, GA, USA. .,Department of Pharmacology, Faculty of Medical Science, University of Campinas (UNICAMP), Campinas, Brazil.
| | - Cameron G McCarthy
- Department of Physiology, Augusta University, 1120 15th Street, Augusta, GA, USA.,Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, USA
| | - Camilla F Wenceslau
- Department of Physiology, Augusta University, 1120 15th Street, Augusta, GA, USA.,Department of Physiology and Pharmacology, College of Medicine and Life Sciences, The University of Toledo, Toledo, USA
| | | | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Science, University of Campinas (UNICAMP), Campinas, Brazil
| | - R Clinton Webb
- Department of Physiology, Augusta University, 1120 15th Street, Augusta, GA, USA
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12
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Li Y, Shi B, Dong F, Zhu X, Liu B, Liu Y. Effects of inflammatory responses, apoptosis, and STAT3/NF-κB- and Nrf2-mediated oxidative stress on benign prostatic hyperplasia induced by a high-fat diet. Aging (Albany NY) 2019; 11:5570-5578. [PMID: 31412319 PMCID: PMC6710068 DOI: 10.18632/aging.102138] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/29/2019] [Indexed: 12/18/2022]
Abstract
This study determined whether or not benign prostatic hyperplasia (BPH) induced by a high-fat diet (HFD) is involved in inflammatory responses, apoptosis, and the signal transducer and activator of transcription (STAT3)/nuclear factor-kappa B (NF-κB)- and nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated oxidative stress pathways. Forty rats were divided into four groups: control; HFD; testosterone; and HFD+testosterone. Hematoxylin and eosin (HE) staining was used to assess histologic changes. An enzyme-linked immunosorbent assay and Western blot analysis were used to detect levels of related proteins. Compared with the control group, the prostate levels of cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), malondialdehyde (MDA), transforming growth factor-β1 (TGF-β1), and monocyte chemotactic protein-1 (MCP-1) were significantly increased, while the levels of glutathione peroxidase (GSH-Px), glutathione reductase (GR), glutathione (GSH), and superoxide dismutase (SOD) were decreased. The TNF-κB, Bcl-2, and caspase-3 levels were increased, while the Bax level was markedly decreased. The cytoplasmic expression of STAT3 and NF-κB was increased, while the nuclear expression of Nrf2 was markedly decreased compared with the control group. In summary, our results demonstrated that a long-term HFD might cause changes in inflammatory responses, apoptosis, and oxidative stress, thus contributing to prostatic hyperplasia. The underlying mechanisms might be related to the STAT3/NF-κB- and Nrf2-mediated oxidative stress pathway.
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Affiliation(s)
- Yongzhi Li
- Department of urology, The Fourth Affiliated Hospital of China Medical University, Shenyang
| | - Benkang Shi
- Qilu Hospital of Shandong University, Jinan, Shandong
| | - Fengming Dong
- Department of urology, The Fourth Affiliated Hospital of China Medical University, Shenyang
| | - Xingwang Zhu
- Department of urology, The Fourth Affiliated Hospital of China Medical University, Shenyang
| | - Bing Liu
- Department of urology, The Fourth Affiliated Hospital of China Medical University, Shenyang
| | - Yili Liu
- Department of urology, The Fourth Affiliated Hospital of China Medical University, Shenyang
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13
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Hayashi T, Fujita K, Matsushita M, Nonomura N. Main Inflammatory Cells and Potentials of Anti-Inflammatory Agents in Prostate Cancer. Cancers (Basel) 2019; 11:cancers11081153. [PMID: 31408948 PMCID: PMC6721573 DOI: 10.3390/cancers11081153] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/08/2019] [Accepted: 08/09/2019] [Indexed: 02/07/2023] Open
Abstract
Prostate cancer is the most common type of cancer and the leading cause of cancer deaths among men in many countries. Preventing progression is a major concern for prostate cancer patients on active surveillance, patients with recurrence after radical therapies, and patients who acquired resistance to systemic therapies. Inflammation, which is induced by various factors such as infection, microbiome, obesity, and a high-fat diet, is the major etiology in the development of prostate cancer. Inflammatory cells play important roles in tumor progression. Various immune cells including tumor-associated neutrophils, tumor-infiltrating macrophages, myeloid-derived suppressor cells, and mast cells promote prostate cancer via various intercellular signaling. Further basic studies examining the relationship between the inflammatory process and prostate cancer progression are warranted. Interventions by medications and diets to control systemic and/or local inflammation might be effective therapies for prostate cancer progression. Epidemiological investigations and basic research using human immune cells or mouse models have revealed that non-steroidal anti-inflammatory drugs, metformin, statins, soy isoflavones, and other diets are potential interventions for preventing progression of prostate cancer by suppressing inflammation. It is essential to evaluate appropriate indications and doses of each drug and diet.
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Affiliation(s)
- Takuji Hayashi
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Kazutoshi Fujita
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
| | - Makoto Matsushita
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Norio Nonomura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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14
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Liss MA, Al-Bayati O, Gelfond J, Goros M, Ullevig S, DiGiovanni J, Hamilton-Reeves J, O'Keefe D, Bacich D, Weaver B, Leach R, Thompson IM. Higher baseline dietary fat and fatty acid intake is associated with increased risk of incident prostate cancer in the SABOR study. Prostate Cancer Prostatic Dis 2019; 22:244-251. [PMID: 30385837 PMCID: PMC6685438 DOI: 10.1038/s41391-018-0105-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/14/2018] [Accepted: 09/21/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND To study the association of nutrient intake measured by baseline food frequency questionnaire and risk of subsequent prostate cancer (PCa) in the SABOR (San Antonio Biomarkers of Risk) cohort study. METHODS After IRB approval, more than 1903 men enrolled in a prospective cohort from 2000 to 2010 as part of the SABOR clinical validation site for the National Cancer Institute Early Detection Research Network. Food and nutrient intakes were calculated using a Food Frequency Questionnaire. Cox proportional hazards modeling and covariate-balanced propensity scores were used to assess the associations between all nutrients and PCa. RESULTS A total of 229 men were diagnosed with PCa by prostate biopsy. Among all nutrients, increased risk of PCa was associated with intake of dietary fat scaled by the total caloric intake, particularly saturated fatty acid (SFA) [HR 1.19; 95% CI, 1.07-1.32), P value < 0.001, False discovery rate (FDR) 0.047] and trans fatty acid (TFA) [HR per quintile 1.21; (95% CI) (1.08-1.35), P < 0.001, FDR 0.039]. There was an increased risk of PCa with increasing intake of monounsaturated fatty acid (MUFA) (HR per quintile 1.14; 95% CI 1.03-1.27, P = 0.01, FDR 0.15) and cholesterol [HR per quintile 1.13; 95% confidence interval (95% CI) (1.02-1.26), P-value 0.02, FDR 0.19]. CONCLUSION After examining a large, population-based cohort for PCa diagnosis, we identified dietary total fat and certain fatty acids as associated with increased risk of PCa. We found no factors that were protective from PCa. Dietary modification of fatty acid intake may reduce risk of PCa.
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Affiliation(s)
- Michael A Liss
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX, USA.
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas, Austin, TX, USA.
| | - Osamah Al-Bayati
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Jonathan Gelfond
- Department of Epidemiology and Biostatistics, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Martin Goros
- Department of Epidemiology and Biostatistics, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Sarah Ullevig
- Department of Kinesiology, Health, and Nutrition, University of Texas Health San Antonio, San Antonio, TX, USA
| | - John DiGiovanni
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas, Austin, TX, USA
| | | | - Denise O'Keefe
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Dean Bacich
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Brandi Weaver
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Robin Leach
- Department of Urology, University of Texas Health San Antonio, San Antonio, TX, USA
- Cell and Structural biology, University of Texas Health San Antonio, San Antonio, TX, USA
| | - Ian M Thompson
- CHRISTUS Health, CHRISTUS Santa Rosa Medical Center, San Antonio, TX, USA
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15
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Ge S, Yan B, Huang J, Chen Y, Chen M, Yang X, Wu Y, Shen D, Ma P. Diisodecyl phthalate aggravates the formaldehyde-exposure-induced learning and memory impairment in mice. Food Chem Toxicol 2019; 126:152-161. [DOI: 10.1016/j.fct.2019.02.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 02/10/2019] [Accepted: 02/11/2019] [Indexed: 01/21/2023]
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16
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Hoang DV, Shivappa N, Pham NM, Hebert JR, Binns CW, Lee AH. Dietary inflammatory index is associated with increased risk for prostate cancer among Vietnamese men. Nutrition 2019; 62:140-145. [PMID: 30889455 DOI: 10.1016/j.nut.2018.12.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/26/2018] [Accepted: 12/29/2018] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Inflammatory potential of diet, as measured by the dietary inflammatory index (DII), has consistently been associated with an increased risk for prostate cancer (PCa). However, data has largely been reported in populations with more proinflammatory dietary patterns, whereas there is high diversity in dietary pattern worldwide. The aim of this study was to assess the association between DII scores and the risk for PCa in Vietnam. METHODS A case-control study of 652 participants (244 incident PCa patients, 64-75 y of age, and 408 controls, frequency matched for age) was conducted in Ho Chi Minh City, Vietnam, from 2013 to 2015. Habitual diet was ascertained using a validated food frequency questionnaire (FFQ), whereas other factors, including demographic and lifestyle characteristics, were assessed via face-to-face interviews. The daily intake of pro- and anti-inflammatory nutrients for each participant was calculated from the FFQ and used to estimate individuals' energy-adjusted DII (E-DII) scores. Multivariate-adjusted odds ratios (OR) and 95% confidence intervals (CIs) were estimated using unconditional logistic regression models. RESULTS Comparing the middle and highest versus lowest tertile of DII scores, there was an increased risk for overall PCa. The OR and associated 95% CI was 2.63 (1.61-4.37) and 3.35 (2.06-5.53), respectively (Ptrend < 0.01). Similar results were found for low-moderate and high-grade PCa. The respective ORs (95% CI) were 3.34 (1.66-7.13) and 5.29 (2.69-11.18), Ptrend < 0.001, and 2.51 (1.40-4.63) and 2.57 (1.43-4.73), Ptrend 0.006. CONCLUSION A proinflammatory diet was associated with increased risk for PCa among Vietnamese men.
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Affiliation(s)
- Dong Van Hoang
- National Institute of Hygiene and Epidemiology, Hanoi, Vietnam; Vietnam National Cancer Institute, Vietnam National Cancer Hospital, 30 Cau Buou, Hanoi, Vietnam.
| | - Nitin Shivappa
- The Cancer Prevention and Control Program, University of South Carolina, Columbia, South Carolina, USA
| | - Ngoc Minh Pham
- Curtin University, Kent Street, Bentley, Perth, Western Australia 6102, Western Australia; Thai Nguyen University of Medicine and Pharmacy, Thai Nguyen, Vietnam
| | - James R Hebert
- The Cancer Prevention and Control Program, University of South Carolina, Columbia, South Carolina, USA
| | - Colin W Binns
- Curtin University, Kent Street, Bentley, Perth, Western Australia 6102, Western Australia
| | - Andy H Lee
- Curtin University, Kent Street, Bentley, Perth, Western Australia 6102, Western Australia
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Bellamri M, Turesky RJ. Dietary Carcinogens and DNA Adducts in Prostate Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1210:29-55. [PMID: 31900903 DOI: 10.1007/978-3-030-32656-2_2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Prostate cancer (PC) is the most commonly diagnosed non-cutaneous cancer and the second leading cause of cancer-related to death in men. The major risk factors for PC are age, family history, and African American ethnicity. Epidemiological studies have reported large geographical variations in PC incidence and mortality, and thus lifestyle and dietary factors influence PC risk. High fat diet, dairy products, alcohol and red meats, are considered as risk factors for PC. This book chapter provides a comprehensive, literature-based review on dietary factors and their molecular mechanisms of prostate carcinogenesis. A large portion of our knowledge is based on epidemiological studies where dietary factors such as cancer promoting agents, including high-fat, dairy products, alcohol, and cancer-initiating genotoxicants formed in cooked meats have been evaluated for PC risk. However, the precise mechanisms in the etiology of PC development remain uncertain. Additional animal and human cell-based studies are required to further our understandings of risk factors involved in PC etiology. Specific biomarkers of chemical exposures and DNA damage in the prostate can provide evidence of cancer-causing agents in the prostate. Collectively, these studies can improve public health research, nutritional education and chemoprevention strategies.
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Affiliation(s)
- Medjda Bellamri
- Department of Medicinal Chemistry, Cancer and Cardiovascular Research Building, University of Minnesota, Minneapolis, MN, USA.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Robert J Turesky
- Department of Medicinal Chemistry, Cancer and Cardiovascular Research Building, University of Minnesota, Minneapolis, MN, USA. .,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA.
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18
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Yao AJ, Chen JH, Xu Y, Zhang ZW, Zou ZQ, Yang HT, Hua QH, Zhao JS, Kang JX, Zhang XH. Endogenous n-3 polyunsaturated fatty acids prevent azoxymethane-induced colon tumorigenesis in mice fed a high-fat diet. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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19
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Staal J, Beyaert R. Inflammation and NF-κB Signaling in Prostate Cancer: Mechanisms and Clinical Implications. Cells 2018; 7:E122. [PMID: 30158439 PMCID: PMC6162478 DOI: 10.3390/cells7090122] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 12/26/2022] Open
Abstract
Prostate cancer is a highly prevalent form of cancer that is usually slow-developing and benign. Due to its high prevalence, it is, however, still the second most common cause of death by cancer in men in the West. The higher prevalence of prostate cancer in the West might be due to elevated inflammation from metabolic syndrome or associated comorbidities. NF-κB activation and many other signals associated with inflammation are known to contribute to prostate cancer malignancy. Inflammatory signals have also been associated with the development of castration resistance and resistance against other androgen depletion strategies, which is a major therapeutic challenge. Here, we review the role of inflammation and its link with androgen signaling in prostate cancer. We further describe the role of NF-κB in prostate cancer cell survival and proliferation, major NF-κB signaling pathways in prostate cancer, and the crosstalk between NF-κB and androgen receptor signaling. Several NF-κB-induced risk factors in prostate cancer and their potential for therapeutic targeting in the clinic are described. A better understanding of the inflammatory mechanisms that control the development of prostate cancer and resistance to androgen-deprivation therapy will eventually lead to novel treatment options for patients.
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Affiliation(s)
- Jens Staal
- VIB-UGent Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, 9052 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Rudi Beyaert
- VIB-UGent Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium.
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20
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De Nunzio C, Presicce F, Tubaro A. Inflammatory mediators in the development and progression of benign prostatic hyperplasia. Nat Rev Urol 2018; 13:613-26. [PMID: 27686153 DOI: 10.1038/nrurol.2016.168] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Benign prostatic hyperplasia (BPH) is the most common urological disease in elderly men. Epidemiological data suggest a causal link between this condition and prostatic inflammation. The prostate is an immune-competent organ characterized by the presence of a complex immune system. Several stimuli, including infectious agents, urinary reflux, metabolic syndrome, the ageing process, and autoimmune response, have been described as triggers for the dysregulation of the prostatic immune system via different molecular pathways involving the development of inflammatory infiltrates. From a pathophysiological standpoint, subsequent tissue damage and chronic tissue healing could result in the development of BPH nodules.
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Affiliation(s)
- Cosimo De Nunzio
- Department of Urology, Sant'Andrea Hospital, 'Sapienza' University of Rome, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Fabrizio Presicce
- Department of Urology, Sant'Andrea Hospital, 'Sapienza' University of Rome, Via di Grottarossa 1035-1039, 00189, Rome, Italy
| | - Andrea Tubaro
- Department of Urology, Sant'Andrea Hospital, 'Sapienza' University of Rome, Via di Grottarossa 1035-1039, 00189, Rome, Italy
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21
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Huang W, Wen J, Lin R, Wei P, Huang F. Effects of mTOR/NF‐κB signaling pathway and high thoracic epidural anesthesia on myocardial ischemia‐reperfusion injury via autophagy in rats. J Cell Physiol 2018; 233:6669-6678. [DOI: 10.1002/jcp.26320] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 11/30/2017] [Indexed: 01/21/2023]
Affiliation(s)
- Wei‐Qiang Huang
- Cardio‐Cerebrovascular Disease Precision Medical Key Laboratory Cultivation Base of GuangxiDepartment of Geriatric CardiologyThe First Affiliated Hospital of Guangxi Medical UniversityNanningChina
| | - Jian‐Lin Wen
- Cardio‐Cerebrovascular Disease Precision Medical Key Laboratory Cultivation Base of GuangxiDepartment of Geriatric CardiologyThe First Affiliated Hospital of Guangxi Medical UniversityNanningChina
| | - Ri‐Qi Lin
- Cardio‐Cerebrovascular Disease Precision Medical Key Laboratory Cultivation Base of GuangxiDepartment of Geriatric CardiologyThe First Affiliated Hospital of Guangxi Medical UniversityNanningChina
| | - Peng Wei
- Cardio‐Cerebrovascular Disease Precision Medical Key Laboratory Cultivation Base of GuangxiDepartment of Geriatric CardiologyThe First Affiliated Hospital of Guangxi Medical UniversityNanningChina
| | - Feng Huang
- Cardio‐Cerebrovascular Disease Precision Medical Key Laboratory Cultivation Base of GuangxiDepartment of CardiologyThe First Affiliated Hospital of Guangxi Medical UniversityNanningChina
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22
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Diedrich JD, Rajagurubandara E, Herroon MK, Mahapatra G, Hüttemann M, Podgorski I. Bone marrow adipocytes promote the Warburg phenotype in metastatic prostate tumors via HIF-1α activation. Oncotarget 2018; 7:64854-64877. [PMID: 27588494 PMCID: PMC5323121 DOI: 10.18632/oncotarget.11712] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 08/21/2016] [Indexed: 12/21/2022] Open
Abstract
Metabolic adaptation is increasingly recognized as a key factor in tumor progression, yet its involvement in metastatic bone disease is not understood. Bone is as an adipocyte-rich organ, and a major site of metastasis from prostate cancer. Bone marrow adipocytes are metabolically active cells capable of shaping tumor metabolism via lipolysis and lipid transfer. In this study, using in vitro and in vivo models of marrow adiposity, we demonstrate that marrow fat cells promote Warburg phenotype in metastatic prostate cancer cells. We show increased expression of glycolytic enzymes, increased lactate production, and decreased mitochondrial oxidative phosphorylation in tumor cells exposed to adipocytes that require paracrine signaling between the two cell types. We also reveal that prostate cancer cells are capable of inducing adipocyte lipolysis as a postulated mechanism of sustenance. We provide evidence that adipocytes drive metabolic reprogramming of tumor cells via oxygen-independent mechanism of HIF-1α activation that can be reversed by HIF-1α downregulation. Importantly, we also demonstrate that the observed metabolic signature in tumor cells exposed to adipocytes mimics the expression patterns seen in patients with metastatic disease. Together, our data provide evidence for a functional relationship between marrow adipocytes and tumor cells in bone that has likely implications for tumor growth and survival within the metastatic niche.
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Affiliation(s)
- Jonathan D Diedrich
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.,Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
| | | | - Mackenzie K Herroon
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Gargi Mahapatra
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, USA
| | - Maik Hüttemann
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.,Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, USA
| | - Izabela Podgorski
- Department of Pharmacology, Wayne State University School of Medicine, Detroit, MI, USA.,Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI, USA
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23
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Cheng KC, Li Y, Chang WT, Kuo FY, Chen ZC, Cheng JT. Telmisartan is effective to ameliorate metabolic syndrome in rat model - a preclinical report. Diabetes Metab Syndr Obes 2018; 11:901-911. [PMID: 30584345 PMCID: PMC6290862 DOI: 10.2147/dmso.s187092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Metabolic syndrome (MS) is known to be associated with hypertension, insulin resistance, and dyslipidemia, and it raises the risk for cardiovascular diseases and diabetes mellitus. Telmisartan is used in clinic as an angiotensin II receptor blocker and it is also identified as activating peroxisome proliferator-activated receptors δ (PPARδ). Activation of PPARδ produced beneficial effects on fatty acid metabolism and glucose metabolism. This study aims to investigate the effects of telmisartan on the modulation of MS in rats fed a high-fat/high-sodium diet. METHODS Rats were fed with a high-fat/high-sodium diet and received injections of streptozotocin at low dose to induce MS. Then, rats with MS were treated with telmisartan. The weight, glucose tolerance, and insulin sensitivity were measured. The lipid profiles were also obtained. The weights of retroperitoneal and epididymal fat pads were determined. The role of PPARδ in telmisartan treatment was identified in rats pretreated with the specific antagonist GSK0660. RESULTS The results showed that telmisartan, but not losartan, significantly reduced plasma glucose and plasma insulin, and improved insulin resistance in rats with MS. Telmisartan also decreased blood pressure and lipids more significantly than losartan. Moreover, GSK0660 effectively reversed the effects of telmisartan in the MS rats. In the MS group, telmisartan activated PPARδ to enhance the levels of phosphorylated GLUT4 in muscle or the expression of phosphoenolpyruvate carboxykinase (PEPCK) in the liver, which was also abolished by GSK0660. Telmisartan is useful to ameliorate hypertension and insulin resistance in rats with MS. Telmisartan improves the insulin resistance through increased expression of GLUT4 and down-regulation of PEPCK via PPARδ-dependent mechanisms. CONCLUSION Telmisartan has been proven to ameliorate MS, particularly in the prediabetes state. Therefore, telmisartan is suitable to develop for the management of MS in clinics.
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Affiliation(s)
- Kai-Chun Cheng
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan
| | - Yingxiao Li
- Department of Psychosomatic Internal Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan
- Department of Medical Research, Chi-Mei Medical Center, Yong Kang, Tainan City 71003, Taiwan,
| | - Wei-Ting Chang
- Department of Medical Research, Chi-Mei Medical Center, Yong Kang, Tainan City 71003, Taiwan,
- Department of Cardiology, Chi-Mei Medical Center, Yong Kang, Tainan City 71003, Taiwan
| | - Feng Yu Kuo
- Cardiovascular Center, Kaohsiung Veterans General Hospital, Kaohsiung City 81362, Taiwan
| | - Zhih-Cherng Chen
- Department of Cardiology, Chi-Mei Medical Center, Yong Kang, Tainan City 71003, Taiwan
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Jean-Tae, Tainan City 71701, Taiwan
| | - Juei-Tang Cheng
- Department of Medical Research, Chi-Mei Medical Center, Yong Kang, Tainan City 71003, Taiwan,
- Institute of Medical Sciences, Chang Jung Christian University, Gueiren, Tainan City 71101, Taiwan,
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24
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Guo Q, You H, Yang X, Lin B, Zhu Z, Lu Z, Li X, Zhao Y, Mao L, Shen S, Cheng H, Zhang J, Deng L, Fan J, Xi Z, Li R, Li CM. Functional single-walled carbon nanotubes 'CAR' for targeting dopamine delivery into the brain of parkinsonian mice. NANOSCALE 2017; 9:10832-10845. [PMID: 28726961 DOI: 10.1039/c7nr02682j] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Current treatments for Parkinson's disease (PD) are limited, partly due to the difficulties posed by the blood brain barrier (BBB) when delivering drugs to the brain. Herein, we explore the feasibility and efficacy of functional single-walled carbon nanotubes 'CAR' (SWCNT-PEGs-Lf) which carry and target-deliver dopamine (DA) to the brain in PD mice for treatment. SWCNTs can penetrate the cell-membrane remarkably, with the characteristics including high drug-loading and pH-dependent therapeutic unloading capacities. It has been reported that polyethylene glycol (PEG)-coated SWCNTs could increase the circulation time and thus prolong the concentration gradient of SWCNTs to the brain. Besides, an obvious lactoferrin-nanoparticle (Lf-NP) accumulation in the striatum, wherein the pharmacological target site of PD has been reported, a dual modification of PEG and Lf onto SWCNTs was applied and thus a specific 'CAR' to carry DA. The results from in vitro studies demonstrate that with 20 mol L-1 DA loaded onto SWCNT-polyethylene glycol (PEGs) in addition to 100 μmol L-1 6-hydroxydopamine (6-OHDA), the activity of PC12 cells increases significantly (p < 0.05), and that the lactate dehydrogenase (LDH) levels and reactive oxygen species (ROS) content also significantly decrease (p < 0.01). Furthermore, the levels of oxidative stress, tumor necrosis factor (TNF)-α and interleukin (IL)-1β are all reduced significantly in PD mice and the CAR-25 mg kg-1 DA group in comparison with that in 6-OHDA-lesioned mice with saline and 6-OHDA-lesioned mice, as well as the Tyrosine hydroxylase-immunoreactive (TH-ir) density increased (p < 0.01). The toxicity of CAR was in vitro and in vivo investigated, showing that the safe dose of SWCNT-PEG exposure to PC12 cells was 6.25 μg μl-1 or lower with a higher metabolic activity in comparison with that in the control group and the safe dose of CAR in the mice experiments was 3.25 mg kg-1 or less, given by intraperitoneal injection with a lower level of oxidative stress and inflammatory responses in comparison with that in the control group. This study suggests that 25 mg kg-1 DA loaded onto 3.25 mg kg-1 CAR can alleviate the oxidative stress and inflammatory responses in parkinsonian mice and increase the TH-ir density in the striatum.
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Affiliation(s)
- Qing Guo
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China.
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25
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Pernambuco AP, Fonseca ACS, Oliveira GLD, Faria PC, Silva RV, Meireles C, Arantes SE, Silva FC, Reis DD. Increased Levels of IL-17, IL-23, MIP-1α, MCP-1 and Global Leukocytes in Fibromyalgia Patients. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/24708593.2017.1357664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Andrei Pereira Pernambuco
- CEPEP, Centro Universitário de Formiga, Formiga, Brazil,
- Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil and
- Universidade de Itaúna, Itaúna, Minas Gerais, Brazil
| | | | | | | | | | | | | | | | - Débora d’Ávila Reis
- Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil and
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26
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Ambili R, Janam P, Saneesh Babu PS, Prasad M, Vinod D, Anil Kumar PR, Kumary TV, Asha Nair S. Differential expression of transcription factors NF-κB and STAT3 in periodontal ligament fibroblasts and gingiva of healthy and diseased individuals. Arch Oral Biol 2017; 82:19-26. [PMID: 28578028 DOI: 10.1016/j.archoralbio.2017.05.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Pathogens and host mediators can activate transcription factors in periodontal cells to bring about gene level alterations, thereby accentuating the periodontal disease process. Nuclear factor-kappa B (NF-κB) and signal transducers and activators of transcription 3 (STAT3) are two pivotal transcription factors implicated in chronic inflammatory diseases. But their importance in periodontal pathogenesis has not been investigated in detail. The aim of the present study was to evaluate the expression of activated transcription factors and their target genes in healthy and diseased periodontium. DESIGN Primary culture of periodontal ligament fibroblasts (PDLF) were established from healthy and diseased periodontium using explant culture methods. NF-κB and STAT3 activation in these cells by Porphyromonas gingivalis LPS (lipopolysaccharide) was demonstrated using confocal microscopy and mRNA expression of target genes were evaluated by quantitative real time PCR. NF-κB and STAT3 expression in diseased and healthy gingival tissues were analyzed using immunohistochemistry. RESULTS A basal upregulation of transcription factors and their target genes were noted in diseased PDLF compared to healthy ones. LPS challenge induced differential expression of NF-κB and STAT3 and their target genes in diseased PDLF compared to healthy ones. Immunohistochemical analysis revealed significant activation of transcription factors in diseased gingival tissues. CONCLUSION The findings of the present study reveal the role of transcription factors NF-κB and STAT3 in periodontal pathogenesis and disease susceptibility of fibroblast subpopulations in periodontal disease could be mediated through activation of NF-κB and STAT3. Since genetic factors are nonmodifyable, transcription factors are promising targets for future host modulation therapy.
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Affiliation(s)
- R Ambili
- PMS College of Dental Sciences and Research, Thiruvananthapuram, Kerala 695028 India.
| | - Presanthila Janam
- Government Dental College, Thiruvananthapuram, Kerala 695011, India; PMS College of Dental Sciences and Research, Thiruvananthapuram, Kerala 695028 India
| | - P S Saneesh Babu
- Rajiv Gandhi Centre for Biotechnology (RGCB), Poojappura, Thiruvananthapuram, Kerala 695014, India
| | - Manu Prasad
- Rajiv Gandhi Centre for Biotechnology (RGCB), Poojappura, Thiruvananthapuram, Kerala 695014, India
| | - D Vinod
- Tissue Culture Laboratory, Sree Chitra Thirunal Institute for Medical Sciences And Technology (SCTIMST), Biomedical Technology Wing, Poojappura, Thiruvananthapuram 695012, India
| | - P R Anil Kumar
- Tissue Culture Laboratory, Sree Chitra Thirunal Institute for Medical Sciences And Technology (SCTIMST), Biomedical Technology Wing, Poojappura, Thiruvananthapuram 695012, India
| | - T V Kumary
- Tissue Culture Laboratory, Sree Chitra Thirunal Institute for Medical Sciences And Technology (SCTIMST), Biomedical Technology Wing, Poojappura, Thiruvananthapuram 695012, India
| | - S Asha Nair
- Rajiv Gandhi Centre for Biotechnology (RGCB), Poojappura, Thiruvananthapuram, Kerala 695014, India
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Parental High-Fat Diet Promotes Inflammatory and Senescence-Related Changes in Prostate. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4962950. [PMID: 28261375 PMCID: PMC5316447 DOI: 10.1155/2017/4962950] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/24/2016] [Accepted: 12/08/2016] [Indexed: 01/08/2023]
Abstract
Background. Obesity and dietary habits are associated with increased incidences of aging-related prostatic diseases. The present study was aimed to investigate transgenerational effects of chronic high-fat diet (HFD) feeding on inflammation and senescence-related changes in prostate. Methods. Sprague-Dawley rats were kept on either normal or HFD one. Senescence-associated β-galactosidase (SA β-gal) activity, inflammation, and cellular proliferation were determined in the prostate. Results. Increased SA β-gal activity, expression of p53, and cell proliferation marker PCNA were observed in ventral prostate of HFD-fed rats. Immunostaining for p53 and PCNA revealed that the p53 immunopositive cells were primarily in stroma while PCNA immunopositive cells were epithelial cells. An increase in expression of cycloxygenase-2 (COX-2) and phosphorylation of nuclear factor-kappa B (NF-kB) was observed in prostate of weaning pups HFD-fed parents. However, in adult pups, irrespective of dietary habit, a significant increase in the expression of COX-2, PCNA, phosphorylation of NF-kB, infiltration of inflammatory cells, and SA β-gal activity was observed. Conclusions. Present investigation reports that HFD feeding promotes accumulation of p53 expressing cells, proliferation of epithelial cells, and senescence-related changes in prostate. Further, parental HFD-feeding upholds inflammatory, proliferative, and senescence-related changes in prostate of pups.
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28
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Parajuli P, Anand R, Mandalaparty C, Suryadevara R, Sriranga PU, Michelhaugh SK, Cazacu S, Finniss S, Thakur A, Lum LG, Schalk D, Brodie C, Mittal S. Preferential expression of functional IL-17R in glioma stem cells: potential role in self-renewal. Oncotarget 2017; 7:6121-35. [PMID: 26755664 PMCID: PMC4868744 DOI: 10.18632/oncotarget.6847] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 12/26/2015] [Indexed: 02/07/2023] Open
Abstract
Gliomas are the most common primary brain tumor and one of the most lethal solid tumors. Mechanistic studies into identification of novel biomarkers are needed to develop new therapeutic strategies for this deadly disease. The objective for this study was to explore the potential direct impact of IL-17−IL-17R interaction in gliomas. Immunohistochemistry and flow cytometry analysis of 12 tumor samples obtained from patients with high grade gliomas revealed that a considerable population (2–19%) of cells in all malignant gliomas expressed IL-17RA, with remarkable co-expression of the glioma stem cell (GSC) markers CD133, Nestin, and Sox2. IL-17 enhanced the self-renewal of GSCs as determined by proliferation and Matrigel® colony assays. IL-17 also induced cytokine/chemokine (IL-6, IL-8, interferon-γ-inducible protein [IP-10], and monocyte chemoattractant protein-1 [MCP-1]) secretion in GSCs, which were differentially blocked by antibodies against IL-17R and IL-6R. Western blot analysis showed that IL-17 modulated the activity of signal transducer and activator of transcription 3 (STAT3), nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB), glycogen synthase kinase-3β (GSK-3β) and β-catenin in GSCs. While IL-17R-mediated secretion of IL-6 and IL-8 were significantly blocked by inhibitors of NF-κB and STAT3; NF-κB inhibitor was more potent than STAT3 inhibitor in blocking IL-17-induced MCP-1 secretion. Overall, our results suggest that IL-17–IL-17R interaction in GSCs induces an autocrine/paracrine cytokine feedback loop, which may provide an important signaling component for maintenance/self-renewal of GSCs via constitutive activation of both NF-κB and STAT3. The results also strongly implicate IL-17R as an important functional biomarker for therapeutic targeting of GSCs.
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Affiliation(s)
- Prahlad Parajuli
- Department of Neurosurgery, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | - Rohit Anand
- Department of Neurosurgery, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | | | - Raviteja Suryadevara
- Department of Neurosurgery, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | - Preethi U Sriranga
- Department of Neurosurgery, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | - Sharon K Michelhaugh
- Department of Neurosurgery, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | - Simona Cazacu
- Hermelin Brain Tumor Center, Henry Ford Hospital, Detroit, MI, USA
| | - Susan Finniss
- Hermelin Brain Tumor Center, Henry Ford Hospital, Detroit, MI, USA
| | - Archana Thakur
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | - Lawrence G Lum
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA.,Departments of Internal Medicine, Immunology and Microbiology and Pediatrics, Wayne State University, Detroit, MI, USA
| | - Dana Schalk
- Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
| | - Chaya Brodie
- Hermelin Brain Tumor Center, Henry Ford Hospital, Detroit, MI, USA
| | - Sandeep Mittal
- Department of Neurosurgery, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA.,Department of Oncology, Wayne State University and Karmanos Cancer Institute, Detroit, MI, USA
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Liu N, Yang M, Huang W, Wang Y, Yang M, Wang Y, Zhao Z. Composition, antioxidant activities and hepatoprotective effects of the water extract of Ziziphus jujuba cv. Jinsixiaozao. RSC Adv 2017. [DOI: 10.1039/c6ra27516h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
In this study, we aimed to evaluate the composition, antioxidant activities, and hepatoprotective effects of water extracts ofZiziphus jujubacv. Jinsixiaozao.
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Affiliation(s)
- Na Liu
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Mei Yang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Weizhen Huang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Yongjie Wang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Min Yang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Ying Wang
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences
- Shandong University
- Jinan
- P. R. China
- Shandong Engineering & Technology Research Center for Jujube Food and Drug
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30
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Dokuyucu R, Gozukara KH, Ozcan O, Sefil NK, Nacar A, Dokuyucu A, Inci M. The effect of Bongardia Chrysogonum on prostate tissue in a rat model of STZ-induced diabetes. SPRINGERPLUS 2016; 5:1322. [PMID: 27563517 PMCID: PMC4980850 DOI: 10.1186/s40064-016-2973-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 07/29/2016] [Indexed: 11/26/2022]
Abstract
Background Bongardia chrysogonum is widely used in Turkey for treating urinary tract infections and prostate hypertrophy, and it also has potent hypoglycemic effects and aids glucose homeostasis. Because of the inflammatory conditions in diabetes mellitus (DM), the prostate tissue of men with diabetes is particularly susceptible to developing hypoplasia, and DM produces characteristic pathological changes in prostate tissue. Here, we examined the effects of B. chrysogonum on the prostate tissue of rats with streptozotocin (STZ)-induced diabetes. Results The glucose levels were statistically significantly higher in the diabetic rats than in healthy controls (P < 0.001). Further, they were significantly lower in the healthy and diabetic rats administered B. chrysogonum than in the untreated diabetic rats (P < 0.001 and 0.05, respectively). The total cholesterol levels were significantly lower in the healthy rats administered B. chrysogonum than the healthy controls (P < 0.05) and diabetic rats (P < 0.01). They were also significantly lower in the diabetic rats administered B. chrysogonum than those that were left untreated (P < 0.05). The testosterone levels were significantly lower in the untreated diabetic rats than in the controls (untreated ones and those administered B. chrysogonum) and diabetic rats administered the herb (P < 0.001, 0.05 and 0.01, respectively). The oxidative stress index was significantly higher in the untreated diabetic rats than the healthy controls (P < 0.05). It was also significantly lower in the healthy and diabetic groups treated with B. chrysogonum than the untreated diabetic rats (P < 0.05). Histological examination showed no changes in the prostate tissue of the non-diabetic rats. In the diabetic group, the glandular lumens were filled with cellular debris and leucocytic infiltrate, and the glandular epithelium was degenerated and thickened. In the diabetic group treated with B. chrysogonum, the epithelium was better preserved and less debris was seen in the glandular lumen. Conclusion To our knowledge, this is the first study to histologically prove the effects of B. chrysogonum on prostate tissue in diabetes. Our findings may be useful in developing B. chrysogonum into a therapeutic agent against diabetes and benign prostate hyperplasia.
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He Q, Babcook MA, Shukla S, Shankar E, Wang Z, Liu G, Erokwu BO, Flask CA, Lu L, Daneshgari F, MacLennan GT, Gupta S. Obesity-initiated metabolic syndrome promotes urinary voiding dysfunction in a mouse model. Prostate 2016; 76:964-76. [PMID: 27040645 PMCID: PMC4946024 DOI: 10.1002/pros.23185] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 03/11/2016] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Accumulating evidences suggests that obesity and metabolic syndrome (MetS) contribute towards lower urinary tract symptoms (LUTS) through alterations in the phenotype of bladder and prostate gland. Clinical studies indicate a link between MetS and LUTS. Nevertheless, there is lack of suitable animal model(s) which could illustrate an association linking obesity to LUTS. We examined the lower urinary tract function in an obesity-initiated MetS mouse model. METHODS Male C57BL/6N wild-type and obese B6.V-Lepob/J maintained on regular diet for 28 weeks were subjected to the assessment of body weight (BW), body length (BL), waist circumference (WC), body mass index (BMI), blood glucose (BG), plasma insulin (INS), plasma leptin (LEP), total cholesterol (CHO), free fatty acid (FFA), and measurement of urinary functions. Whole animal peritoneal and subcutaneous adipose tissue measurements as well as prostate and bladder volumes were analyzed by MRI followed by histological evaluation. These parameters were used to draw correlations between MetS and LUTS. RESULTS Obesity parameters such as BW, WC, and BMI were significantly higher in B6.V-Lepob/J mice compared to C57BL/6N mice (P < 0.01). Higher levels of total CHO and FFA were noted in B6.V-Lepob/J mice than C57BL/6N mice (P < 0.05). These results were concurrent with frequency, lower average urine volume and other urinary voiding dysfunctions in B6.V-Lepob/J mice. MRI assessments demonstrate marked increase in body fat and prostate volume in these mice. Compared to C57BL/6N mice, histological analysis of the prostate from B6.V-Lepob/J mice showed increased proliferation, gland crowding, and infiltration of immune cells in the stroma; whereas the bladder urothelium was slightly thicker and appears more proliferative in these mice. The regression and correlation analysis indicate that peritoneal fat (R = 0.853; P < 0.02), CHO (R = 0.729; P < 0.001), BG (R = 0.712; P < 0.001) and prostate volume (R = 0.706; P < 0.023) strongly correlate with LUTS whereas BMI, WC, INS, and FFA moderately correlate with the prevalence of bladder dysfunction. CONCLUSION Our results suggest that LUTS may be attributable in part to obesity and MetS. Validation of an in vivo model may lead to understand the underlying pathophysiological mechanisms of obesity-related LUTS in humans. Prostate 76:964-976, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Qiqi He
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
- Department of Urology, Key Laboratory of Disease of Urological Systems, Gansu Nephro-Urological Clinical Center, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Melissa A. Babcook
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Sanjeev Shukla
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Eswar Shankar
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Zhiping Wang
- Department of Urology, Key Laboratory of Disease of Urological Systems, Gansu Nephro-Urological Clinical Center, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Guiming Liu
- Department of Surgery, MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio 44109
| | - Bernadette O. Erokwu
- Department of Radiology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Chris A. Flask
- Department of Radiology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106
- Department of Pediatrics, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Lan Lu
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
- Department of Radiology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Firouz Daneshgari
- Department of Surgery, MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio 44109
| | - Gregory T. MacLennan
- Department of Pathology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
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DeClercq VC, Goldsby JS, McMurray DN, Chapkin RS. Distinct Adipose Depots from Mice Differentially Respond to a High-Fat, High-Salt Diet. J Nutr 2016; 146:1189-96. [PMID: 27146921 PMCID: PMC4877629 DOI: 10.3945/jn.115.227496] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 03/22/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Dietary factors such as high-sodium or high-fat (HF) diets have been shown to induce a proinflammatory phenotype. However, there is limited information with respect to how microenvironments of distinct intra-abdominal adipose depots respond to the combination of a high-salt, HF diet. OBJECTIVE We tested the hypothesis that HF feeding would cause changes in distinct adipose depots, which would be further amplified by the addition of high salt to the diet. METHODS Twenty-seven male C57BL6 mice were fed an HF diet (60% of kcal from fat), an HF + high-salt diet (4% wt:wt), a control diet [low-fat (LF);10% of kcal from fat], or an LF + high-salt diet for 12 wk. The main sources of fat in the diets were corn oil and lard. Adipokines in serum and released from adipose tissue organ cultures were measured by immunoassays. QIAGEN's Ingenuity Pathway Analysis was used to perform functional analysis of the RNA-sequencing data from distinct adipose depots. RESULTS Diet-induced obesity resulted in a classical inflammatory phenotype characterized by increased concentrations of circulating inflammatory mediators (38-56%) and reduced adiponectin concentrations (27%). However, high-salt feeding did not exacerbate the HF diet-induced changes in adipokines and cytokines. Leptin and interleukin-6 were differentially released from adipose depots and HF feeding impaired adiponectin and resistin secretion across all 3 depots (34-48% and 45-83%, respectively). The addition of high salt to the HF diet did not further modulate secretion in cultured adipose tissue experiments. Although gene expression data from RNA sequencing indicated a >4.3-fold upregulation of integrin αX (Itgax) with HF feeding in all 3 depots, markers of cellular function were differentially expressed in response to diet across depots. CONCLUSION Collectively, these findings highlight the role of distinct adipose depots in mice in the development of obesity and emphasize the importance of selecting specific depots to study the effects of therapeutic interventions on adipose tissue function.
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Affiliation(s)
| | | | - David N McMurray
- Program in Integrative Nutrition and Complex Diseases,,Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, College Station, TX
| | - Robert S Chapkin
- Program in Integrative Nutrition and Complex Diseases, Department of Nutrition and Food Science, and Center for Translational Environmental Health Research, Texas A&M University, College Station, TX; and Department of Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, College Station, TX
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Kwon OJ, Zhang B, Zhang L, Xin L. High fat diet promotes prostatic basal-to-luminal differentiation and accelerates initiation of prostate epithelial hyperplasia originated from basal cells. Stem Cell Res 2016; 16:682-91. [PMID: 27107344 DOI: 10.1016/j.scr.2016.04.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 04/07/2016] [Accepted: 04/11/2016] [Indexed: 01/03/2023] Open
Abstract
Recent lineage tracing studies showed that the prostate basal and luminal cells in adult mice are two independent lineages under the physiological condition, but basal cells are capable of generating luminal progenies during bacterial infection-induced prostatitis. Because acute bacterial infection in human prostate tissues is relatively rare, the disease relevance of the bacterial infection-induced basal-to-luminal differentiation is uncertain. Herein we employ a high fat diet-induced sterile prostate inflammation model to determine whether basal-to-luminal differentiation can be induced by inflammation irrespective of the underlying etiologies. A K14-CreER model and a fluorescent report line are utilized to specifically label basal cells with the green fluorescent protein. We show that high fat diet promotes immune cell infiltration into the prostate tissues and basal-to-luminal differentiation. Increased cell proliferation accompanies basal-to-luminal differentiation, suggesting a concurrent regulation of basal cell proliferation and differentiation. This study demonstrates that basal-to-luminal differentiation can be induced by different types of prostate inflammation evolved with distinct etiologies. Finally, high fat diet also accelerates initiation and progression of prostatic intraepithelial neoplasia that are originated from basal cells with loss-of-function of the tumor suppressor Pten. Because prostate cancer originated from basal cells tends to be invasive, our study also provides an alternative explanation for the association between obesity and aggressive prostate cancer.
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Affiliation(s)
- Oh-Joon Kwon
- Department of Molecular and Cellular Biology, Baylor College of Medicine, United States
| | - Boyu Zhang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, United States
| | - Li Zhang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, United States
| | - Li Xin
- Department of Molecular and Cellular Biology, Baylor College of Medicine, United States; Dan L. Duncan Cancer Center, Baylor College of Medicine, United States; Department of Pathology and Immunology.
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He Q, Wang Z, Liu G, Daneshgari F, MacLennan GT, Gupta S. Metabolic syndrome, inflammation and lower urinary tract symptoms: possible translational links. Prostate Cancer Prostatic Dis 2016; 19:7-13. [PMID: 26391088 PMCID: PMC4747786 DOI: 10.1038/pcan.2015.43] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 08/04/2015] [Accepted: 08/17/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND Epidemiological data suggest that lower urinary tract symptoms (LUTSs) may be associated with metabolic syndrome (MetS). Inflammation has been proposed as a candidate mechanism at the crossroad between these two clinical entities. The aim of this review article is to evaluate the role of MetS-induced inflammation in the pathogenesis and progression of LUTS. METHODS A systematic review was conducted using the keywords 'metabolic syndrome and lower urinary tract symptoms' within the title search engines including PubMed, Web of Science and the Cochrane Library for relevant research work published between 2000 and January 2015. The obtained literature was reviewed by the primary author (QH) and was assessed for eligibility and standard level of evidence. RESULTS Total of 52 articles met the eligibility criteria. On the basis of database search during the past 15 years and our systematic review of prospective and retrospective cohorts, case-control trials, observational studies and animal data identified a possible link between MetS-induced inflammation and LUTS including BPH, bladder outlet obstruction, overactive bladder, urinary incontinence and other possible urinary tract abnormalities. CONCLUSIONS There is convincing evidence to suggest that MetS and inflammation could be important contributors to LUTS in men, particularly in the development of BPH. However, the role of MetS-induced inflammation remains unclear in overactive bladder, urinary incontinence and etiology of LUTS progression.
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Affiliation(s)
- Qiqi He
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
- Department of Urology, Key Laboratory of Disease of Urological Systems, Gansu Nephro-Urological Clinical Center, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Zhiping Wang
- Department of Urology, Key Laboratory of Disease of Urological Systems, Gansu Nephro-Urological Clinical Center, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Guiming Liu
- Department of Surgery, MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio 44109
| | - Firouz Daneshgari
- Department of Surgery, MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio 44109
| | - Gregory T. MacLennan
- Department of Pathology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106
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Reg3g Promotes Pancreatic Carcinogenesis in a Murine Model of Chronic Pancreatitis. Dig Dis Sci 2015; 60:3656-68. [PMID: 26182900 DOI: 10.1007/s10620-015-3787-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/29/2015] [Indexed: 12/28/2022]
Abstract
BACKGROUND Regenerating islet-derived 3 (Reg3) is abnormally expressed in several human digestive system diseases, including chronic pancreatitis (CP) and pancreatic cancer (PC). AIM The purpose of this study was to clarify the mechanism of the enhanced expression of Reg3 in inflammation-induced PC. METHODS C57BL/6 mice were treated with caerulein for 6 weeks to induce CP and then injected with pReg3g--a lentivirus system encoding for murine Reg3g--accompanied by dimethylbenzanthracene to induce PC. We detected pancreatic histopathological characteristics, tumor-related gene expression, inflammation-associated pathway activation, serum biochemical indicators, and immunological cell activities. RESULTS The mice that developed CP after caerulein treatment were marked by pronounced histologic lesions, elevated serum amylase levels, and activation of inflammation-related pathways. Mice given a high dose of pReg3g developed PC by 16 weeks, with recognizable tumors in the pancreas. While, both the low and high doses of pReg3g produced higher transcription of c-fos, k-ras, cytokeratin-19, and proliferating cell nuclear antigen, and a lower expression of caspase-3 compared to pNEG controls. Additionally, the higher dose of pReg3g increased the expressions of pSTAT3, NFκB (p65), and SOCS3 methylation during PC development. In addition, mice treated with pReg3g displayed higher levels of serum IL10 and TGFβ and suppressed T lymphocyte proliferation and DC function. CONCLUSION The comprehensive analysis suggests enhanced Reg3g expression exacerbates PC in inflammation-associated cancer progression. Reg3g appears to promote CP-related PC in mice through multiple mechanisms, involving enhanced transcription of pancreatic tumor markers, repression of anti-tumor immunity, and activation of STAT3/p65 signal transduction pathways.
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Cognitive deficits and anxiety induced by diisononyl phthalate in mice and the neuroprotective effects of melatonin. Sci Rep 2015; 5:14676. [PMID: 26424168 PMCID: PMC4589782 DOI: 10.1038/srep14676] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 09/07/2015] [Indexed: 12/15/2022] Open
Abstract
Diisononyl phthalate (DINP) is a plasticizer that is frequently used as a substitute for other plasticizers whose use is prohibited in certain products. In vivo studies on the neurotoxicity of DINP are however, limited. This work aims to investigate whether DINP causes neurobehavioral changes in mice and to provide useful advice on preventing the occurrence of these adverse effects. Behavioral analysis showed that oral administration of 20 or 200 mg/kg/day DINP led to mouse cognitive deficits and anxiety. Brain histopathological observations, immunohistochemistry assays (cysteine-aspartic acid protease 3 [caspase-3], glial fibrillary acidic protein [GFAP]), oxidative stress assessments (reactive oxygen species [ROS], glutathione [GSH], superoxide dismutase [SOD] activities, 8-hydroxy-2-deoxyguanosine [8-OH-dG] and DNA-protein crosslinks [DPC]), and assessment of inflammation (tumor necrosis factor alpha [TNF-а] and interleukin-1 beta [IL-1β]) of mouse brains showed that there were histopathological alterations in the brain and increased levels of oxidative stress, and inflammation for these same groups. However, some of these effects were blocked by administration of melatonin (50 mg/kg/day). Down-regulation of oxidative stress was proposed to explain the neuroprotective effects of melatonin. The data suggests that DINP could cause cognitive deficits and anxiety in mice, and that melatonin could be used to avoid these adverse effects.
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Hardaway AL, Herroon MK, Rajagurubandara E, Podgorski I. Marrow adipocyte-derived CXCL1 and CXCL2 contribute to osteolysis in metastatic prostate cancer. Clin Exp Metastasis 2015; 32:353-68. [PMID: 25802102 DOI: 10.1007/s10585-015-9714-5] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/12/2015] [Indexed: 01/25/2023]
Abstract
Increased bone marrow adiposity is a common feature of advanced age, obesity and associated metabolic pathologies. Augmented numbers of marrow adipocytes positively correlate with dysregulated bone remodeling, also a well-established complication of metastatic disease. We have shown previously that marrow adiposity accelerates prostate tumor progression in the skeleton and promotes extensive destruction of the bone; however, the factors behind adipocyte-driven osteolysis in the skeletal tumor microenvironment are not currently known. In this study, utilizing in vivo diet-induced models of bone marrow adiposity, we reveal evidence for positive correlation between increased marrow fat content, bone degradation by ARCaP(M) and PC3 prostate tumors, and augmented levels of host-derived CXCL1 and CXCL2, ligands of CXCR2 receptor. We show by in vitro osteoclastogenesis assays that media conditioned by bone marrow adipocytes is a significant source of CXCL1 and CXCL2 proteins. We also demonstrate that both the adipocyte-conditioned media and the recombinant CXCL1 and CXCL2 ligands efficiently accelerate osteoclast maturation, a process that can be blocked by neutralizing antibodies to each of the chemokines. We further confirm the contribution of CXCR2 signaling axis to adiposity-driven osteoclastogenesis by blocking fat cell-induced osteoclast differentiation with CXCR2 antagonist or neutralizing antibodies. Together, our results link CXCL1 and CXCL2 chemokines with bone marrow adiposity and implicate CXCR2 signaling in promoting effects of marrow fat on progression of skeletal tumors in bone.
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Affiliation(s)
- Aimalie L Hardaway
- Department of Pharmacology, Wayne State University School of Medicine, 540 E. Canfield, Rm 6304, Detroit, MI, 48201, USA
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Dinh CHL, Szabo A, Camer D, Yu Y, Wang H, Huang XF. Bardoxolone methyl prevents fat deposition and inflammation in the visceral fat of mice fed a high-fat diet. Chem Biol Interact 2015; 229:1-8. [PMID: 25637688 DOI: 10.1016/j.cbi.2015.01.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 01/07/2015] [Accepted: 01/20/2015] [Indexed: 12/14/2022]
Abstract
Key features of diet-induced obesity are visceral fat deposition, macrophage infiltration and inflammation that can lead to metabolic disorders. This study examined the effects of bardoxolone methyl (BARD) in preventing obesity and inflammation in the visceral fat of mice fed high-fat diet. Male C57BL/6J mice were fed a high-fat diet (HFD), a low-fat diet (LFD, i.e., lab chow diet) or a high-fat diet supplemented with BARD (HFD/BARD) for 21weeks. BARD at a dosage of 10mg/kg body weight was administered orally in drinking water. Histology, immunohistochemistry and Western blot were used for the analysis of epididymal adipose tissue. Morphological results demonstrated that HFD fed mice treated with BARD had smaller adipocytes and fewer macrophages present in epididymal adipose tissue than the HFD group. Furthermore, BARD administration reduced the inflammatory profile in this tissue by increasing the expression of nuclear factor of kappa-light-polypeptide gene enhancer in B-cells inhibitor, alpha (IκB-α) protein and decreasing the protein expression of tumour necrosis factor alpha (TNF-α). BARD also prevented oxidative stress reflected by a reduction in stress activated proteins, including signal transducer and activator of transcription 3 (STAT3), protein kinase B (Akt), extracellular-signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK). BARD administration activated the sympathetic nervous system in epididymal adipose tissue assessed by the increased synthesis of tyrosine hydroxylase (TH) and uncoupling protein 2 (UCP2). The expression of inflammatory and sympathetic nervous system proteins in BARD mice fed a HFD was equivalent to that of the LFD control mice, indicating the anti-inflammatory and anti-obesity properties of this drug. In conclusion, the oral administration of BARD in HFD mice prevented fat deposition, inflammation and oxidative stress, and improved sympathetic activity in visceral fat. This study suggests a potential therapeutic role of BARD in preventing the development of obesity.
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Affiliation(s)
- Chi H L Dinh
- Centre for Translational Neuroscience, School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, NSW 2522, Australia
| | - Alexander Szabo
- Centre for Translational Neuroscience, School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, NSW 2522, Australia; ANSTO LifeSciences, Australian Nuclear Science and Technology Organisation, NSW 2234, Australia
| | - Danielle Camer
- Centre for Translational Neuroscience, School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, NSW 2522, Australia
| | - Yinghua Yu
- Centre for Translational Neuroscience, School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, NSW 2522, Australia
| | - Hongqin Wang
- Centre for Translational Neuroscience, School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, NSW 2522, Australia
| | - Xu-Feng Huang
- Centre for Translational Neuroscience, School of Medicine, University of Wollongong and Illawarra Health and Medical Research Institute, NSW 2522, Australia.
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Shankar E, Bhaskaran N, MacLennan GT, Liu G, Daneshgari F, Gupta S. Inflammatory Signaling Involved in High-Fat Diet Induced Prostate Diseases. JOURNAL OF UROLOGY AND RESEARCH 2015; 2:1018. [PMID: 26417612 PMCID: PMC4583131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
High-Fat Diet (HFD) has emerged as an important risk factor not only for obesity and diabetes but also for urological disorders. Recent research provides ample evidence that HFD is a putative cause for prostatic diseases including prostate cancer. The mechanisms whereby these diseases develop in the prostate have not been fully elucidated. In this review we discuss signaling pathways intricately involved in HFD-induced prostate disease. We performed a search through PUBMED using key words "high fat diet" and "prostate". Our data and perspectives are included in this review along with research performed by various other groups. HFD is positively associated with an increased risk of benign prostatic hyperplasia (BPH) and prostate cancer. HFD induces oxidative stress and inflammation in the prostate gland, and these adverse influences transform it from a normal to a diseased state. Studies demonstrate that HFD accelerates the generation of reactive oxygen species by driving the NADPH oxidase system, exacerbating oxidative stress in the prostate. HFD also causes a significant increase in the levels of pro-inflammatory cytokines and gene products through activation of two important signaling pathways: the Signal Transducer and Activator of Transcription (STAT)-3 and Nuclear Factor-kappa B (NF-κB). Both these pathways function as transcription factors required for regulating genes involved in proliferation, survival, angiogenesis, invasion and inflammation. The crosstalk between these two pathways enhances their regulatory function. Through its influences on the NF-κB and Stat-3 signaling pathways, it appears likely that HFD increases the risk of development of BPH and prostate cancer.
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Affiliation(s)
- Eswar Shankar
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106 USA
| | - Natarajan Bhaskaran
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106 USA
| | - Gregory T MacLennan
- Department of Pathology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106 USA
| | - Guiming Liu
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106 USA
| | - Firouz Daneshgari
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106 USA
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University & University Hospitals Case Medical Center, Cleveland, Ohio 44106 USA
- Department of Nutrition, Case Western Reserve University, Cleveland, Ohio 44106 USA
- Case Comprehensive Cancer Center, Cleveland, Ohio 44106 USA
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O'Sullivan KE, Reynolds JV, O'Hanlon C, O'Sullivan JN, Lysaght J. Could signal transducer and activator of transcription 3 be a therapeutic target in obesity-related gastrointestinal malignancy? J Gastrointest Cancer 2014; 45:1-11. [PMID: 24163144 DOI: 10.1007/s12029-013-9555-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION A large body of evidence has implicated the signal transducer and activator of transcription (STAT) family and particularly the ubiquitously expressed STAT3 protein in the pathogenesis of colorectal, hepatocellular, gastric and pancreatic carcinoma. DISCUSSION Concomitantly, an increasing body of epidemiological evidence has linked obesity and its associated pro-inflammatory state with the development of gastrointestinal cancers. Visceral adipose tissue is no longer considered inert and is known to secrete a number of adipocytokines such as leptin, interleukin (IL)-6, IL-8, IL-1β and tumour necrosis factor-alpha (TNF-α) into the surrounding environment. Interestingly, these adipocytokines are strongly linked with the Janus kinase (JAK)/STAT pathway of signal transduction and there is experimental evidence linking IL-1β, IL-8 and TNF-α to JAK/STAT signaling in other tissues. The result is an up-regulation of a wide range of anti-apoptotic, pro-metastatic and pro-angiogenic genes and processes. This is particularly relevant for gastrointestinal malignancy as these factors have the potential to signal adjacent endothelial cells in a paracrine manner. CONCLUSION This review examines the potential role of the STAT3 signaling pathway in the pathogenesis of obesity-related gastrointestinal malignancy and the potential therapeutic role of STAT3 blockade given its status as a signaling hub for a number of inflammatory adipocytokines.
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Affiliation(s)
- Katie E O'Sullivan
- Department of Surgery, Institute of Molecular Medicine, St. James Hospital, Dublin 8, Ireland,
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Abstract
Incidence of skeletal metastases and death from prostate cancer greatly increases with age and obesity, conditions which increase marrow adiposity. Bone marrow adipocytes are metabolically active components of bone metastatic niche that modulate the function of neighboring cells; yet the mechanisms of their involvement in tumor behavior in bone have not been explored. In this study, using experimental models of intraosseous tumor growth and diet-induced obesity, we demonstrate the promoting effects of marrow fat on growth and progression of skeletal prostate tumors. We reveal that exposure to lipids supplied by marrow adipocytes induces expression of lipid chaperone FABP4, pro-inflammatory interleukin IL-1β, and oxidative stress protein HMOX-1 in metastatic tumor cells and stimulates their growth and invasiveness. We show that FABP4 is highly overexpressed in prostate skeletal tumors from obese mice and in bone metastasis samples from prostate cancer patients. In addition, we provide results suggestive of bi-directional interaction between FABP4 and PPARγ pathways that may be driving aggressive tumor cell behavior in bone. Together, our data provide evidence for functional relationship between bone marrow adiposity and metastatic prostate cancers and unravel the FABP4/IL-1β axis as a potential therapeutic target for this presently incurable disease.
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Moschonas DP, Piperi C, Korkolopoulou P, Levidou G, Kavantzas N, Trigka EA, Vlachos I, Arapostathi C, Perrea D, Mitropoulos D, Diamanti-Kandarakis E, Papavassiliou AG. Impact of diet-induced obesity in male mouse reproductive system: The role of advanced glycation end product-receptor for advanced glycation end product axis. Exp Biol Med (Maywood) 2014; 239:937-947. [PMID: 24872429 DOI: 10.1177/1535370214531899] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Obesity represents a route to broad physiological dysfunction affecting major organs including male urogenital system. Hyperglycemia, hyperlipidemia, and oxidative stress associated with obesity augment the formation of reactive metabolic by-products, namely advanced glycation end products (AGEs), leading to increased tissue deposition and damage. The exogenous intake and the endogenous accumulation of AGEs contribute to metabolic and reproductive abnormalities in both women and men. The present study assessed the effects of a diet high in saturated fatty acids (SAFA) on the lipid and metabolic profile (AGE levels, oxidative stress) as well as pathogenic (AGE, receptor for AGEs [RAGE] expression, apoptosis) and morphometric parameters of male reproductive system in vivo. Effects of switching to a diet rich in monounsaturated fatty acids (MUFA) or equal in the proportion MUFA to SAFA were further investigated. SAFA-fed animals were characterized by increased serum lipid concentrations (p < .05) compared to controls, but AGEs and peroxide levels were not significantly different across the different experimental groups. Elevated AGE deposition was detected for the first time in germ cells with a higher staining intensity in animals on the SAFA diet, compared to MUFA or MUFA-SAFA-fed animals or the control samples (p = .018). In Leydig cells, AGE localization was higher in the entire cohort of high-fat-fed animals compared to controls (p < .05). High-fat-fed mice displayed enhanced apoptosis compared to controls (p < .005). Furthermore, prostatic tissue demonstrated reduction in epithelial folding, an effect which was significantly reversed after MUFA diet administration. Our findings provide the basis for further investigation of AGE-RAGE axis in testicular and prostatic disturbances associated with diet-induced obesity. Simple dietetic intervention has beneficial effects on metabolic dysfunction of reproductive system before overt manifestations, indicating glycation as a promising therapeutic target.
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Affiliation(s)
- Dimitrios P Moschonas
- Department of Biological Chemistry, University of Athens Medical School, Athens 11527, Greece
| | - Christina Piperi
- Department of Biological Chemistry, University of Athens Medical School, Athens 11527, Greece
| | | | - Georgia Levidou
- 1 Department of Pathology, University of Athens Medical School, Athens 11527, Greece
| | - Nikolaos Kavantzas
- 1 Department of Pathology, University of Athens Medical School, Athens 11527, Greece
| | - Eleni-Andriana Trigka
- 1 Department of Pathology, University of Athens Medical School, Athens 11527, Greece
| | - Ioannis Vlachos
- Laboratory for Experimental Surgery and Surgical Research "N.S. Christeas," University of Athens Medical School, Athens 11527, Greece
| | - Christina Arapostathi
- Laboratory for Experimental Surgery and Surgical Research "N.S. Christeas," University of Athens Medical School, Athens 11527, Greece
| | - Despina Perrea
- Laboratory for Experimental Surgery and Surgical Research "N.S. Christeas," University of Athens Medical School, Athens 11527, Greece
| | | | - Evanthia Diamanti-Kandarakis
- Endocrine Unit, Third Department of Internal Medicine, University of Athens Medical School, Athens 11527, Greece
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Peh MT, Anwar AB, Ng DSW, Atan MSBM, Kumar SD, Moore PK. Effect of feeding a high fat diet on hydrogen sulfide (H2S) metabolism in the mouse. Nitric Oxide 2014; 41:138-45. [PMID: 24637018 DOI: 10.1016/j.niox.2014.03.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 02/20/2014] [Accepted: 03/06/2014] [Indexed: 12/18/2022]
Abstract
Hydrogen sulfide (H2S) has complex effects in inflammation with both pro- and anti-inflammatory actions of this gas reported. Recent work suggests that a deficiency of H2S occurs in, and may contribute to, the chronic inflammation which underpins ongoing atherosclerotic disease. However, whether a high fat diet, predisposing to atherosclerosis, affects H2S metabolism is not known. In this study we assessed H2S metabolism in different tissues of mice fed a high fat diet for up to 16 weeks. Ex vivo biosynthesis of H2S was reduced in liver, kidney and lung of high fat fed mice. Western blotting revealed deficiency of cystathionine γ lyase (CSE) in liver and lung with increased expression of cystathionine β synthetase (CBS) in liver and kidney. Expression of 3-mercaptopyruvate sulfurtransferase (3-MST) was reduced in liver but not other tissues. Aortic endothelial cell CSE was also reduced in high fat fed animals as determined immunohistochemically. Plasma H2S concentration was not changed in these animals. No evidence of lipid deposition was apparent in aortae from high fat fed animals and plasma serum amyloid A (SAA) and C-reactive protein (CRP) were also unchanged suggesting lack of frank atherosclerotic disease. Plasma IL-6, IL12p40 and G-CSF levels were increased by high fat feeding whilst other cytokines including IL-1α, IL-1b and TNF-α were not altered. These results suggest that deficiency of tissue CSE and H2S occurs in mice fed a high fat diet and that this change takes place prior to development of frank atherosclerotic disease.
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Affiliation(s)
- Meng Teng Peh
- Neurobiology Group, Life Sciences Institute and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Azzahra Binti Anwar
- Neurobiology Group, Life Sciences Institute and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - David S W Ng
- Neurobiology Group, Life Sciences Institute and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Mohamed Shirhan Bin Mohamed Atan
- Neurobiology Group, Life Sciences Institute and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Srinivasan Dinesh Kumar
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 637553, Singapore
| | - Philip K Moore
- Neurobiology Group, Life Sciences Institute and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
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Plant flavone apigenin binds to nucleic acid bases and reduces oxidative DNA damage in prostate epithelial cells. PLoS One 2014; 9:e91588. [PMID: 24614817 PMCID: PMC3948873 DOI: 10.1371/journal.pone.0091588] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 02/12/2014] [Indexed: 02/03/2023] Open
Abstract
Oxidative stress has been linked to prostate carcinogenesis as human prostate tissue is vulnerable to oxidative DNA damage. Apigenin, a dietary plant flavone, possesses anti-proliferative and anticancer effects; however, its antioxidant properties have not been fully elucidated. We investigated sub-cellular distribution of apigenin, it's binding to DNA and protective effects against H2O2-induced DNA damage using transformed human prostate epithelial RWPE-1 cells and prostate cancer LNCaP, PC-3 and DU145 cells. Exposure of cells to apigenin exhibited higher accumulation in RWPE-1 and LNCaP cells, compared to PC-3 and DU145 cells. The kinetics of apigenin uptake in LNCaP cells was estimated with a Km value of 5 µmole/L and Vmax of 190 pmoles/million cells/h. Sub-cellular fractionation demonstrated that nuclear matrix retains the highest concentration of apigenin (45.3%), followed by cytosol (23.9%), nuclear membranes (17.9%) and microsomes (12.9%), respectively. Spectroscopic analysis of apigenin with calf-thymus DNA exhibited intercalation as the dominant binding mode to DNA duplex. Apigenin exposure resulted in significant genoprotective effects in H2O2-stressed RWPE-1 cells by reduction in reactive oxygen species levels. In addition, apigenin exposure suppressed the formation of 8-hydroxy-2' deoxyguanosine and protected exposed cells from apoptosis. Our studies demonstrate that apigenin is readily taken up by normal prostatic epithelial cells and prostate cancer cells, and is incorporated into their nuclei, where its intercalation with nucleic acid bases may account for its antioxidant and chemopreventive activities.
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Interleukin 1β attenuates vascular α1 adrenergic receptors expression following lipopolysaccharide-induced endotoxemia in rabbits. J Trauma Acute Care Surg 2014; 76:762-70. [DOI: 10.1097/ta.0b013e3182ab0723] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Liu X, Zhang Y, Li J, Wang D, Wu Y, Li Y, Lu Z, Yu SCT, Li R, Yang X. Cognitive deficits and decreased locomotor activity induced by single-walled carbon nanotubes and neuroprotective effects of ascorbic acid. Int J Nanomedicine 2014; 9:823-39. [PMID: 24596461 PMCID: PMC3930484 DOI: 10.2147/ijn.s56339] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Single-walled carbon nanotubes (SWCNTs) have shown increasing promise in the field of biomedicine, especially in applications related to the nervous system. However, there are limited studies available on the neurotoxicity of SWCNTs used in vivo. In this study, neurobehavioral changes caused by SWCNTs in mice and oxidative stress were investigated. The results of ethological analysis (Morris water maze and open-field test), brain histopathological examination, and assessments of oxidative stress (reactive oxygen species [ROS], malondialdehyde [MDA], and glutathione [GSH]), inflammation (nuclear factor κB, tumor necrosis factor α, interleukin-1β), and apoptosis (cysteine-aspartic acid protease 3) in brains showed that 6.25 and 12.50 mg/kg/day SWCNTs in mice could induce cognitive deficits and decreased locomotor activity, brain histopathological alterations, and increased levels of oxidative stress, inflammation, and apoptosis in mouse brains; however, 3.125 mg/kg/day SWCNTs had zero or minor adverse effects in mice, and these effects were blocked by concurrent administration of ascorbic acid. Down-regulation of oxidative stress, inflammation, and apoptosis were proposed to explain the neuroprotective effects of ascorbic acid. This work suggests SWCNTs could induce cognitive deficits and decreased locomotor activity, and provides a strategy to avoid the adverse effects.
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Affiliation(s)
- Xudong Liu
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
| | - Yuchao Zhang
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
| | - Jinquan Li
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
| | - Dong Wang
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
| | - Yang Wu
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
| | - Yan Li
- Chemical and Biomolecular Engineering Department, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Zhisong Lu
- Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing, People's Republic of China
| | - Samuel C T Yu
- Division of Environment, Hong Kong University of Science and Technology, Hong Kong Special Administrative Region
| | - Rui Li
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
| | - Xu Yang
- Laboratory of Environmental Biomedicine, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Science, Central China Normal University, Wuhan, People's Republic of China
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Urocortin affects migration of hepatic cancer cell lines via differential regulation of cPLA2 and iPLA2. Cell Signal 2014; 26:1125-34. [PMID: 24518041 DOI: 10.1016/j.cellsig.2014.02.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 02/01/2014] [Indexed: 12/14/2022]
Abstract
Urocortin (UCN) is a member of corticotrophin-releasing factor (CRF) family, which has been reported to play a role in many biological processes, including inflammation and cancer development. Growing evidence shows that PLA2 (phospholipase A2) enzymes also participate in inflammation and tumor development. The primary aim of the present study was to identify a novel signaling pathway of CRF receptor activation leading to migration of two kinds of hepatoma carcinoma cell lines, HepG2 and SMMC-7721, linking the stimulation of PLA2 expression by UCN to UCN-induced tumor cell migration. Pharmacological inhibitors and genetic approaches (such as stable transfection and siRNAs) were used in this study. Unlike HepG2 cells which express both CRF receptors themselves, SMMC-7721 cells which hardly express these two CRF receptors needed stable transfection with CRFR1 or CRFR2 to observe the effect of UCN. Two types of PLA2 enzymes, cPLA2 and iPLA2, were found to be regulated by UCN. Our data showed that UCN raised cPLA2 expression but lowered iPLA2 expression. Moreover, UCN was found to act on the certain region of iPLA2 promoter to reduce its transcription. UCN promoted tumor cell migration by up-regulating cPLA2 expression via CRFR1 whereas it suppressed tumor cell migration by down-regulating iPLA2 expression via CRFR2. These results indicate the dual roles for UCN in the hepatoma carcinoma cell migration, which involve the regulation of both cPLA2and iPLA2.
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Wieczorek M, Ginter T, Brand P, Heinzel T, Krämer OH. Acetylation modulates the STAT signaling code. Cytokine Growth Factor Rev 2012; 23:293-305. [PMID: 22795479 DOI: 10.1016/j.cytogfr.2012.06.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 06/06/2012] [Indexed: 02/07/2023]
Abstract
A fascinating question of modern biology is how a limited number of signaling pathways generate biological diversity and crosstalk phenomena in vivo. Well-defined posttranslational modification patterns dictate the functions and interactions of proteins. The signal transducers and activators of transcription (STATs) are physiologically important cytokine-induced transcription factors. They are targeted by a multitude of posttranslational modifications that control and modulate signaling responses and gene expression. Beyond phosphorylation of serine and tyrosine residues, lysine acetylation has recently emerged as a critical modification regulating STAT functions. Interestingly, acetylation can determine STAT signaling codes by various molecular mechanisms, including the modulation of other posttranslational modifications. Here, we provide an overview on the acetylation of STATs and how this protein modification shapes cellular cytokine responses. We summarize recent advances in understanding the impact of STAT acetylation on cell growth, apoptosis, innate immunity, inflammation, and tumorigenesis. Furthermore, we discuss how STAT acetylation can be targeted by small molecules and we consider the possibility that additional molecules controlling STAT signaling are regulated by acetylation. Our review also summarizes evolutionary aspects and we show similarities between the acetylation-dependent control of STATs and other important molecules. We propose the concept that, similar to the 'histone code', distinct posttranslational modifications and their crosstalk orchestrate the functions and interactions of STAT proteins.
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Affiliation(s)
- Martin Wieczorek
- Center for Molecular Biomedicine, Institute for Biochemistry and Biophysics, Department of Biochemistry, Friedrich Schiller University of Jena, Jena, Germany
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Zhang Q, Liu S, Ge D, Zhang Q, Xue Y, Xiong Z, Abdel-Mageed AB, Myers L, Hill SM, Rowan BG, Sartor O, Melamed J, Chen Z, You Z. Interleukin-17 promotes formation and growth of prostate adenocarcinoma in mouse models. Cancer Res 2012; 72:2589-99. [PMID: 22461511 DOI: 10.1158/0008-5472.can-11-3795] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The contributions of interleukin (IL)-17 to cancer remain unclear and somewhat controversial. We took a genetic approach to explore its role in prostate cancers by interbreeding IL-17 receptor C (IL-17RC)-deficient mice with mice that are conditionally mutant for PTEN, one established preclinical model for prostate cancer. Mice that were IL-17RC-deficient (IL-17RC(-)) displayed prostates that were smaller than mice that maintained IL-17RC expression (IL-17RC(+)). In addition, IL-17RC(-) mice developed a reduced number of invasive prostate adenocarcinomas with lower rates of cellular proliferation and higher apoptosis than IL-17RC(+) mice. Moreover, the fibromuscular stroma surrounding prostatic glands was relatively thicker in IL-17RC(-) mice and was associated with decreased matrix metalloproteinase (Mmp)7 expression and increased Timp1, 2, and 4 expression, whereas administration of recombinant mouse IL-17 induced prostatic expression of Mmp7. Taken together, our results suggested that IL-17 promotes the formation and growth of prostate adenocarcinoma, and that an IL-17-MMP7 signaling axis is required for the transition of prostatic intraepithelial neoplasia to frank adenocarcinoma.
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Affiliation(s)
- Qiuyang Zhang
- Department of Structural & Cellular Biology, School of Medicine, New Orleans, LA, USA
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Benchetrit F, Ciree A, Vives V, Warnier G, Gey A, Sautès-Fridman C, Fossiez F, Haicheur N, Fridman WH, Tartour E. Interleukin-17 inhibits tumor cell growth by means of a T-cell-dependent mechanism. Blood 2002; 99:2114-21. [PMID: 11877287 DOI: 10.1182/blood.v99.6.2114] [Citation(s) in RCA: 252] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Interleukin 17 (IL-17) is a proinflammatory cytokine produced by activated CD4(+) memory T cells. We previously showed that IL-17 increased the growth rate of human cervical tumors transplanted into athymic nude mice. To address the possible role of T cells in the biologic activity of IL-17 for tumor control, we grafted 2 murine hematopoietic immunogenic tumors (P815 and J558L) transfected with a complementary DNA encoding murine IL-17 into syngeneic immunocompetent mice. We found that growth of the 2 IL-17-producing tumors was significantly inhibited compared with that of mock-transfected tumors. In contrast to the antitumor activity of IL-17 observed in immunocompetent mice, we observed no difference in the in vivo growth of IL-17-transfected or mock-transfected P815 cells (P815-IL-17 and P815-Neo, respectively) transplanted into nude mice. We then showed that IL-17 increased generation of specific cytolytic T lymphocytes (CTLs) directed against the immunodominant antigens from P815 called A, B, C, D, and E, since all mice injected with P815-IL-17 developed a P815-specific CTL response, whereas only 6 of 16 mice immunized with P815-Neo had a specific CTL response against the antigens. The induction of CTLs was associated with establishment of a tumor-protective immunity. These experiments suggest that T lymphocytes are involved in the antitumor activity of IL-17. Therefore, IL-17, like other cytokines, appears to be a pleiotropic cytokine with possible protumor or antitumor effects on tumor development, which often depends on the immunogenicity of tumor models.
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Affiliation(s)
- Fabrice Benchetrit
- INSERM U 255, Université Pierre et Marie Curie, Hopital Européen Georges Pompidou, 20 Rue Leblanc, 75908 Paris Cedex 15, France
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