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Farag MR, El-Naseery NI, El Behery EI, Nouh DS, El-Mleeh A, Mostafa IMA, Alagawany M, Di Cerbo A, Azzam MM, Mawed SA. The Role of Chlorella vulgaris in Attenuating Infertility Induced by Cadmium Chloride via Suppressing Oxidative Stress and Modulating Spermatogenesis and Steroidogenesis in Male Rats. Biol Trace Elem Res 2023:10.1007/s12011-023-03971-y. [PMID: 38114777 DOI: 10.1007/s12011-023-03971-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/20/2023] [Indexed: 12/21/2023]
Abstract
Cadmium (Cd) is an environmental pollutant known as endocrine disruptor . Cd has been reported to induce perturbations of the testicular functions and the subsequent decline of the male fertility of both animals and humans. Chlorella vulgaris (ChV) a species of green microalga has been reported to have multiple beneficial activities such as anti-inflammatory, antioxidant, and antiapoptotic effects. Thus, this work was conducted to declare the benefits of Chlorella vulgaris (ChV) (500 mg/kg doses) against cadmium chloride CdCl2 (2 mg/kg doses) toxicity on the main and accessory reproductive organs' weight, structure, and function of male rats. Briefly, 40 adult male rats in 4 groups (n = 10) were used as follows; control, ChV, CdCl2, and CdCl2+ChV. (i) The 1st group was kept as control fed on pellet chow and water ad libitum. (ii) The second group is Chlorella vulgaris (ChV) group fed with C. vulgaris alga for 10 days (500 mg/kg BW). (iii) The third group was administrated CdCl2 (2mg/kg BW) via subcutaneous injection (S/C) daily for 10 days. (iv) The fourth group administered both CdCl2 and ChV with the abovementioned doses daily for successive 10 days. Our observations declared that cadmium exhibited an adverse influence on the testes and prostate gland architecture indicated by seminiferous tubule destruction, testicular edema, degeneration of Leydig cells, and prostate acini damage. All together affect the epididymal semen quality and quantity including sperm viability, motility, and count. Interestingly, ChV could restore the testicular architecture and spermatozoa regeneration accompanied by semen quality improvement and increased reproductive hormones including testosterone. On the other side, ChV suppresses reactive oxygen species (ROS) formation via enhancement the antioxidant-related genes in the testicular tissue including SOD, CAT, GSH, and MDA and maintaining spermatocyte survival via suppression of apoptotic related genes including caspase3 and activating steroidogenic related genes including StAR and HSD17β3 in the cadmium-treated testes. In this study, ChV could enhance male fertility under normal or stressful conditions and ameliorate the adverse effects of hazardous heavy metals that are widely distributed in our environment.
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Affiliation(s)
- Mayada R Farag
- Forensic Medicine and Toxicology Department, Veterinary Medicine Faculty, Zagazig University, Zagazig, 44519, Egypt.
| | - Nesma I El-Naseery
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Eman I El Behery
- Anatomy and Embryology Department, Veterinary Medicine Faculty, Zagazig University, Zagazig, 44519, Egypt
| | - Doaa S Nouh
- Anatomy and Embryology Department, Veterinary Medicine Faculty, Zagazig University, Zagazig, 44519, Egypt
| | - Amany El-Mleeh
- Department of Pharmacology, Faculty of Veterinary Medicine, Menoufia University, Shebin Elkoum, 32511, Egypt
| | - Ismail M A Mostafa
- Biochemistry and Molecular Biology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, 44519, Egypt
| | - Alessandro Di Cerbo
- School of Biosciences and Veterinary Medicine, University of Camerino, Matelica, Italy
| | - Mahmoud M Azzam
- Department of Animal Production College of Food & Agriculture Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Suzan A Mawed
- Zoology Department, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt.
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2
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Erzurumlu Y, Dogan HK, Catakli D. Progesterone regulates the endoplasmic reticulum-associated degradation and Unfolded Protein Response axis by mimicking the androgenic stimulation in prostate cancer cells. Mol Biol Rep 2023; 50:1253-1265. [PMID: 36445513 DOI: 10.1007/s11033-022-08065-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 10/31/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Today, androgen receptor (AR)-mediated signaling mechanisms in prostate cancer are intensively studied. However, the roles of other steroid hormones in prostate cancer and their effects on androgenic signaling still remain a mystery. Recent studies focused on the androgen-mediated regulation of protein quality control mechanisms such as endoplasmic reticulum-associated degradation (ERAD) and unfolded protein response (UPR) in prostate cancer cells. Present study, we investigated the action of progesterone signaling on ERAD and UPR mechanisms and analyzed the crosstalk of progesterone signaling with androgenic signal in prostate cancer cells. METHODS AND RESULTS The mode of action of progesterone on ERAD, UPR and AR signaling in prostate cancer was investigated by cell culture studies using LNCaP and 22Rv1 cells. To this aim qRT-PCR, western-blotting assay, immunofluorescent microscopy, nuclear fractionation and bioinformatic analysis were used. Our results indicated that progesterone positively regulates mRNA and protein levels of ERAD components in LNCaP cells. Also, it induced the IRE⍺ and PERK branches of UPR signaling. Progesterone receptor antagonist effectively antagonized the progesterone-induced responses. We also had similar results in 22Rv1 cells. Also, we tested the effect of the pharmacologically reducing of IRE⍺ and PERK signaling on progesterone-induced ERAD. Additionally, we determined the presence of putative progesterone response elements (PREs) in the promoter regions of ERAD members by bioinformatic tool. More strikingly, we found progesterone regulates AR signaling by modulating the nuclear transactivation of AR. CONCLUSION Herein, we defined that progesterone hormone positively regulates ERAD and UPR mechanisms in prostate cancer cells and that progesterone contributes to the molecular biology of prostate cancer by regulating androgenic signaling. Mode of Action of Progesteron on Androgen sensitive prostate cancer cells.
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Affiliation(s)
- Yalcin Erzurumlu
- Department of Biochemistry, Faculty of Pharmacy, Suleyman Demirel University, 32260, Isparta, Turkey.
| | - Hatice Kubra Dogan
- Department of Bioengineering, Institute of Science, Suleyman Demirel University, 32260, Isparta, Turkey
| | - Deniz Catakli
- Department of Pharmacology, Faculty of Medicine, Suleyman Demirel University, 32260, Isparta, Turkey
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3
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Behairy A, Hashem MM, Abo-El-Sooud K, El-Metwally AE, Hassan BA, Abd-Elhakim YM. Quercetin Abates Aluminum Trioxide Nanoparticles and Lead Acetate Induced Altered Sperm Quality, Testicular Oxidative Damage, and Sexual Hormones Disruption in Male Rats. Antioxidants (Basel) 2022; 11:antiox11112133. [PMID: 36358505 PMCID: PMC9686927 DOI: 10.3390/antiox11112133] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/22/2022] [Accepted: 10/24/2022] [Indexed: 12/05/2022] Open
Abstract
This study examined the effects of exposure to lead acetate (PbAc) and/or aluminum trioxide nanoparticles (Al2O3NPs) on testicular function. Additionally, the probable reproprotective effects of quercetin (QTN) against Al2O3NPs and PbAc co-exposure in male Sprague Dawely rats were assessed. Al2O3NPs (100 mg/kg b.wt.), PbAc (50 mg/kg b.wt.), and QTN (20 mg/kg b.wt.) were orally administered for 60 days. Then, spermiogram, histopathological examinations of the testis and accessory glands, and immunohistochemical detection of androgen receptors (AR) and tumor necrotic factor alpha (TNF-α) were achieved. Moreover, serum levels of male sex hormones and testicular levels of antioxidant indices were estimated. The results showed that Al2O3NPs and/or PbAc caused significant sperm abnormalities, testicular oxidative stress, and histopathological changes. Furthermore, serum testosterone, LH, and FSH levels significantly decreased, while estradiol levels significantly increased. The Al2O3NPs and/or PbAc co-exposed group had more obvious disturbances. Furthermore, QTN co-administration significantly reversed the Al2O3NPs and PbAc-induced testicular histopathological alterations, reduced antioxidant defenses, and altered AR and TNF-α immune expression in testicular tissues. Conclusively, Al2O3NPs and/or PbAc evoked testicular dysfunction by inducing oxidative injury and inflammation. However, QTN oral dosing effectively mitigated the negative effects of Al2O3NPs and PbAc by suppressing oxidative stress and inflammation and improving the antioxidant defense system.
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Affiliation(s)
- Amany Behairy
- Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Mohamed M. Hashem
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Egypt
| | - Khaled Abo-El-Sooud
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12613, Egypt
| | - Abeer E. El-Metwally
- Pathology Department, Animal Reproduction Research Institute, Giza 3514805, Egypt
| | - Bayan A. Hassan
- Pharmacology Department, Faculty of Pharmacy, Future University, Cairo 11835, Egypt
| | - Yasmina M. Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
- Correspondence: or
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Yao Y, Xie W, Chen D, Han Y, Yuan Z, Zhang H, Weng Q. Seasonal expressions of VEGF and its receptors VEGFR1 and VEGFR2 in the prostate of the wild ground squirrels (<em>Spermophilus dauricus</em>). Eur J Histochem 2021; 65. [PMID: 33764018 PMCID: PMC8033528 DOI: 10.4081/ejh.2021.3219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/03/2021] [Indexed: 11/22/2022] Open
Abstract
As a vital male accessory reproductive gonad, the prostate requires vascular endothelial growth factors for promoting its growth and development. In this study, we investigated the localizations and expressions of vascular endothelial growth factor (VEGF) and its receptors including VEGF-receptor1 (VEFGR1) and VEGF-receptor2 (VEGFR2) in the prostate of the wild ground squirrels during the breeding and the non-breeding seasons. The values of total prostate weight and volume in the breeding season were higher than those in the non-breeding season. Histological observations showed that the exocrine lumens of the prostate expanded in the breeding season and contracted in the non-breeding season. The mRNA expression levels of VEGF and VEGFR2 in the prostate were higher in the breeding season than those in the non-breeding season, but the mRNA expression level of VEGFR1 had no significant change between the breeding and non-breeding seasons. Immunohistochemical results revealed that VEGF, VEGFR1 and VEGFR2 were presented in epithelial and stromal cells during the breeding and non-breeding seasons. In addition, the microvessels of the prostate were widely distributed and the number of microvessels increased obviously in the breeding season, while decreased sharply in the non-breeding season. These results suggested that expression levels of VEGF and VEGFR2 might be correlated with seasonal changes in morphology and functions of the prostate, and VEGF might serve as pivotal regulators to affect seasonal changes in the prostate functions of the wild male ground squirrels via an autocrine/paracrine pathway.
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Affiliation(s)
- Yuchen Yao
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Wenqian Xie
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Di Chen
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Yingying Han
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Zhengrong Yuan
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Haolin Zhang
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
| | - Qiang Weng
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing.
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5
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Steroidogenesis in Peripheral and Transition Zones of Human Prostate Cancer Tissue. Int J Mol Sci 2021; 22:ijms22020487. [PMID: 33418978 PMCID: PMC7825320 DOI: 10.3390/ijms22020487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 11/17/2022] Open
Abstract
The peripheral zone (PZ) and transition zone (TZ) represent about 70% of the human prostate gland with each zone having differential ability to develop prostate cancer. Androgens and their receptor are the primary driving cause of prostate cancer growth and eventually castration-resistant prostate cancer (CRPC). De novo steroidogenesis has been identified as a key mechanism that develops during CRPC. Currently, there is very limited information available on human prostate tissue steroidogenesis. The purpose of the present study was to investigate steroid metabolism in human prostate cancer tissues with comparison between PZ and TZ. Human prostate cancer tumors were procured from the patients who underwent radical prostatectomy without any neoadjuvant therapy. Human prostate homogenates were used to quantify steroid levels intrinsically present in the tissues as well as formed after incubation with 2 µg/mL of 17-hydroxypregnenolone (17-OH-pregnenolone) or progesterone. A Waters Acquity ultraperformance liquid chromatography coupled to a Quattro Premier XE tandem quadrupole mass spectrometer using a C18 column was used to measure thirteen steroids from the classical and backdoor steroidogenesis pathways. The intrinsic prostate tissue steroid levels were similar between PZ and TZ with dehydroepiandrosterone (DHEA), dihydrotestosterone (DHT), pregnenolone and 17-OH-pregnenolone levels higher than the other steroids measured. Interestingly, 5-pregnan-3,20-dione, 5-pregnan-3-ol-20-one, and 5-pregnan-17-ol-3,20-dione formation was significantly higher in both the zones of prostate tissues, whereas, androstenedione, testosterone, DHT, and progesterone levels were significantly lower after 60 min incubation compared to the 0 min control incubations. The incubations with progesterone had a similar outcome with 5-pregnan-3,20-dione and 5-pregnan-3-ol-20-one levels were elevated and the levels of DHT were lower in both PZ and TZ tissues. The net changes in steroid formation after the incubation were more observable with 17-OH-pregnenolone than with progesterone. In our knowledge, this is the first report of comprehensive analyses of intrinsic prostate tissue steroids and precursor-driven steroid metabolism using a sensitive liquid chromatography-mass spectrometry assay. In summary, the PZ and TZ of human prostate exhibited similar steroidogenic ability with distinction in the manner each zone utilizes the steroid precursors to divert the activity towards backdoor pathway through a complex matrix of steroidogenic mechanisms.
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Sauer AK, Vela H, Vela G, Stark P, Barrera-Juarez E, Grabrucker AM. Zinc Deficiency in Men Over 50 and Its Implications in Prostate Disorders. Front Oncol 2020; 10:1293. [PMID: 32850402 PMCID: PMC7424038 DOI: 10.3389/fonc.2020.01293] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/22/2020] [Indexed: 02/06/2023] Open
Abstract
Research has been consistently showing the role of zinc (Zn) in prostate function. In this article, we review the current literature on the anatomy and main functions of the prostate, highlighting the role of zinc. In particular, we will review the etiology of benign prostate enlargement (BPH), its prevalence in men over 50, the likelihood of BPH becoming prostate cancer (PCa), and explain the relationship of zinc and apoptosis in the prostate cells and the implications for BPH and PCa. We present a model that explains how endogenous factors provoke excretion of zinc or limit zinc absorption, and how exogenous factors like nutrition and drugs regularly used in men over 50 can significantly decrease zinc status and thereby increase the risk of BPH. Finally, we explain how Zn amino acid (AA) complexes may be capable of avoiding antagonists and inhibitors of zinc absorption, thereby increasing the bioavailability of zinc for the necessary biological processes in the prostate.
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Affiliation(s)
- Ann Katrin Sauer
- Department of Biological Sciences, University of Limerick, Limerick, Ireland.,Bernal Institute, University of Limerick, Limerick, Ireland.,Health Research Institute (HRI), University of Limerick, Limerick, Ireland
| | - Hector Vela
- Vela Staines y Asociados SA de CV, Monterrey, Mexico
| | - Guillermo Vela
- Zinpro Corporation, Eden Prairie, MN, United States.,Autismo ABP, Monterrey, Mexico
| | - Peter Stark
- Zinpro Corporation, Eden Prairie, MN, United States
| | | | - Andreas M Grabrucker
- Department of Biological Sciences, University of Limerick, Limerick, Ireland.,Bernal Institute, University of Limerick, Limerick, Ireland.,Health Research Institute (HRI), University of Limerick, Limerick, Ireland
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7
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Sarkis M, Ghanem E, Rahme K. Jumping on the Bandwagon: A Review on the Versatile Applications of Gold Nanostructures in Prostate Cancer. Int J Mol Sci 2019; 20:E970. [PMID: 30813391 PMCID: PMC6412201 DOI: 10.3390/ijms20040970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 02/21/2019] [Indexed: 01/09/2023] Open
Abstract
Prostate cancer (PCa) has remarkably emerged as a prominent disease in the face of the male population. Conventional treatments like prostatectomy or radiation can be curative only if PCa is diagnosed at an early stage. In the field of targeted therapy, a bevy of novel therapeutic approaches have left a landmark in PCa treatment and have proven to extend survival via distinct modes of actions. Nanotherapy has started to take root and has become the hype of the century by virtue of its abundant advantages. Scientists have invested a great deal of interest in the development of nanostructures such as gold nanoparticles (AuNPs), which hold particularly great hope for PCa theranostics. In this article, we present an overview of the studies published after 1998 that involve the use of different functionalized AuNPs to treat and diagnose PCa. Special reference is given to various in vitro and in vivo methods employed to shuttle AuNPs to PCa cells. Major studies show an enhancement of either detection or treatment of PCa when compared to their non-targeted counterparts, especially when AuNPs are tagged with specific ligands, such as antibodies, tea natural extracts, folate, anisamide, receptor inhibitors, and chitosan. Future approaches of treatment are dependent on those worthy multifunctional molecules, and are dictated by their ability to achieve a more versatile cancer therapeutic approach.
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Affiliation(s)
- Monira Sarkis
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, ZoukMosbeh P.O.Box:72, Lebanon.
| | - Esther Ghanem
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, ZoukMosbeh P.O.Box:72, Lebanon.
| | - Kamil Rahme
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, ZoukMosbeh P.O.Box:72, Lebanon.
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Zhang Y, Wang Y, Huang C, Wang Y, Qi H, Han Y, Yuan Z, Weng Q, Zhang H. Seasonal expression of 5α-reductases and androgen receptor in the prostate gland of the wild ground squirrel (Spermophilus dauricus). Comp Biochem Physiol A Mol Integr Physiol 2018; 226:11-16. [DOI: 10.1016/j.cbpa.2018.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 12/15/2022]
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9
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Salami SA, Salahdeen HM, Rahman OC, Murtala BA, Raji Y. Oral administration of Tridax procumbens aqueous leaf extract attenuates reproductive function impairments in L-NAME induced hypertensive male rats. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2017. [DOI: 10.1016/j.mefs.2017.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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10
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Adebayo AO, Akinloye AK, Olukole SG, Ihunwo AO, Oke BO. Anatomical and immunohistochemical characteristics of the prostate gland in the greater cane rat (Thryonomys swinderianus). Anat Histol Embryol 2014; 44:138-45. [PMID: 24895059 DOI: 10.1111/ahe.12122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 04/10/2014] [Indexed: 11/27/2022]
Abstract
This study examined the morphology and immunohistochemical features of the prostate gland in 15 captive-reared male greater cane rat of known reproductive and medical history. Samples of the glands were taken after gross examination and routinely prepared for both histological and ultrastructural analysis. Immunohistochemistry was also carried out on paraffin-embedded sections of the glands using rabbit polyclonal antibodies against oestrogen receptors (ERα and ERβ) and mouse monoclonal antibody for the progesterone receptor (PR). The prostate, which constitutes 0.04% of the body weight, was a paired, lobulated, brownish gland having three left and four right lobes that partly cover the pelvic urethra. Based on the amount and arrangement of the secretory epithelial folding and relative to their distances to the urethra, two histological zones, the central and peripheral, were identified. However, the epithelium of both zones was lined by predominantly simple cuboidal cells with occasional basal cells. The main ultrastructural features of these cuboidal cells were the presence of several nuclear pores on the nucleus, moderately well-developed, short microvilli and bleb-like apical projections, as well as inter-cellular lacunae seen between these cells and the basal cells. The cuboidal epithelial cells also showed positive nuclear staining for ERα and ERβ but not for PR. It is however interesting that the ERα-positive staining was more at the epithelial cells, which is uncommon. These findings highlight the peculiarities in the structure and ultrastructure as well as the unique expression of the oestrogen receptors in the prostate gland of the greater cane rat.
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Affiliation(s)
- A O Adebayo
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria; Department of Veterinary Anatomy, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta, Nigeria; Faculty of Health Sciences, School of Anatomical Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Jang H, Bae WJ, Kim SJ, Yuk SM, Han DS, Ha US, Hwang SY, Yoon SH, Wang Z, Kim SW. The effect of anthocyanin on the prostate in an andropause animal model: rapid prostatic cell death by apoptosis is partially prevented by anthocyanin supplementation. World J Mens Health 2013; 31:239-46. [PMID: 24459658 PMCID: PMC3888894 DOI: 10.5534/wjmh.2013.31.3.239] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 10/25/2013] [Accepted: 10/28/2013] [Indexed: 11/15/2022] Open
Abstract
Purpose To evaluate the anti-apoptotic effect of the antioxidant reaction of anthocyanin on the prostate in an andropause animal model. Materials and Methods Sprague-Dawley rats were divided into three groups (n=12 in each): control (Group I), andropause (Group II), andropause treated with anthocyanin (Group III). For induction of andropause, Group II and III underwent bilateral orchiectomy. Group III was treated with daily oral anthocyanin (160 mg/kg) for 8 weeks. After 8 weeks, the rats were sacrificed and their blood and prostates were examined pathohistologically and evaluated for oxidative stress and apoptosis. Oxidative stress was assessed by the activity of superoxide dismutase (SOD) and apoptosis in the prostate was identified by terminal deoxyribonucleotidyl transferase-mediated dUTP-digoxigenin nick end-labelling assay. Results Group II showed markedly increased activity of SOD in serum over that observed in Group I, whereas the rats in Group III showed reduced oxidative stress compared to Group II. Despite no significant differences in prostate weight between Group II and III (p=0.078), the apoptotic index was significantly greater in Group II than Group I, and was significantly lesser in Group III than Group II. Conclusions We suggest that the oxidative stress caused by low testosterone may be another inducer of apoptosis, and this apoptosis may partly contribute to the overall apoptosis of the prostate in the andropause animal model. Therefore, anthocyanin supplementation may contribute to preventing excessively rapid cell death by apoptosis in the prostate in an animal model of andropause.
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Affiliation(s)
- Hoon Jang
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Woong Jin Bae
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Su Jin Kim
- Health Promotion Center, The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea
| | - Seoung Mo Yuk
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Dong Seok Han
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - U Syn Ha
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | | | - Shin Hee Yoon
- The Catholic Agro-Medical Center, The Catholic University of Korea, Seoul, Korea
| | - Zhiping Wang
- Department of Urology, Second Hospital of Lanzhou University, Lanzhou, China
| | - Sae Woong Kim
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
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12
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Pellacani D, Oldridge EE, Collins AT, Maitland NJ. Prominin-1 (CD133) Expression in the Prostate and Prostate Cancer: A Marker for Quiescent Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2013; 777:167-84. [PMID: 23161082 DOI: 10.1007/978-1-4614-5894-4_11] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The origin and phenotype of stem cells in human prostate cancer remains a subject of much conjecture. In this scenario, CD133 has been successfully used as a stem cell marker in both normal prostate and prostate cancer. However, cancer stem cells have been identified without the use of this marker, opening up the possibility of a CD133 negative cancer stem cell. In this chapter, we review the current literature regarding prostate cancer stem cells, with specific reference to the expression of CD133 as a stem cell marker to identify and purify stem cells in normal prostate epithelium and prostate cancer.
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Affiliation(s)
- Davide Pellacani
- YCR Cancer Research Unit, Department of Biology, University of York, Wentworth Way, YO10 5DD, York, UK
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13
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Ma C, Yoshioka M, Boivin A, Belleau P, Gan L, Takase Y, Labrie F, St-Amand J. Prostate-specific genes and their regulation by dihydrotestosterone. Prostate 2008; 68:241-54. [PMID: 18095270 DOI: 10.1002/pros.20712] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Prostate is a well-known androgen-dependent tissue. METHODS By sequencing 4,294,186 serial analysis of gene expression (SAGE) tags, we have investigated the transcriptomes of normal mouse prostate, liver, testis, lung, brain, femur, skin, adipose tissue, skeletal muscle, vagina, ovary, mammary gland, and uterus in order to identify the most abundant and tissue-specific transcripts in the prostate, as well as to target the androgen responsive transcripts specifically regulated in the prostate. Small interference RNA (siRNA) in LNCaP cells was applied to validate the roles of prostate-specific/enriched ARGs in the growth of human prostate cancer cells. RESULTS The most abundant transcripts were involved in prostatic secretion, energy metabolism and immunity. Previously well-known prostate-specific transcripts, including many transcripts involved in prostatic secretion, polyamine biosynthesis and transport, and immunity were specific/enriched in the prostate. Only 22 transcripts among 114 androgen-regulated genes (ARGs) in the mouse prostate were modulated by dihydrotestosterone (DHT) in two or more tissues. The siRNA results showed that inhibition of HSPA5 and MAT2A gene expression repressed growth of human cancer LNCaP cells. CONCLUSIONS The current study globally assessed the transcriptome of the prostate and revealed the most abundant and tissue-specific transcripts which are responsible for the unique functions of this organ. These prostate-specific ARGs might be used as targets to develop safe and effective gene-based therapy for the prevention and treatment of prostate cancer.
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Affiliation(s)
- Ci Ma
- Molecular Endocrinology and Oncology Research Center, Laval University Medical Center, Department of Anatomy and Physiology, Laval University, Québec, Canada
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Pennefather JN, Lau WA, Mitchelson F, Ventura S. The autonomic and sensory innervation of the smooth muscle of the prostate gland: a review of pharmacological and histological studies. JOURNAL OF AUTONOMIC PHARMACOLOGY 2000; 20:193-206. [PMID: 11260358 DOI: 10.1046/j.1365-2680.2000.00195.x] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
1. We review literature demonstrating (a) the presence and (b) the actions of substances that mediate or modify neuroeffector transmission to the smooth muscle of the prostrate stroma of a number of species including man. 2. In all species studied prostatic stroma, but not secretory acini, receives rich noradrenergic innervation. Stimulation of these nerves causes contractions of prostate smooth muscle that are inhibited by guanethidine and by alpha1-adrenoceptor antagonists that probably act at the alpha1L-adrenoceptor. Such actions underlie the clinical use of alpha1-adrenoceptor antagonists in benign prostatic hyperplasia (BPH). 3. Acetylcholinesterase-positive nerves innervate prostatic stroma as well as epithelium. Atropine reduces nerve-mediated contractions of stromal muscle in the rat, guinea-pig and rabbit. M1, M2 and M3 muscarinic receptors have been implicated in eliciting or facilitating contraction in the prostate from guinea-pig, dog and rat, respectively. 4. Adenine nucleotides and nucleosides, nitric oxide (NO), opioids, neuropeptide Y (NPY) and vasoactive intestinal peptide (VIP) may act as co-transmitters or modulators in autonomic effector nerves supplying prostate stroma. Adenosine inhibits neurotransmission to the rat prostate, and NO is inhibitory in prostate from human, rat, rabbit, pig and dog. The activity of peptides present in the relatively sparse sensory innervation of the prostate exhibits species variation, but, when effective, calcitonin gene-related peptide is inhibitory while tachykinins are stimulant. The roles of NPY and VIP in modulating stromal contractility remain unclear. 5. Taken together the current literature indicates that, in addition to noradrenaline, other neurotransmitters and neuromodulators may regulate the tone of prostatic smooth muscle. Whether drugs that mimic or modify their actions might be useful in providing symptomatic relief of the urinary symptoms associated with BPH remains to be established.
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Affiliation(s)
- J N Pennefather
- Department of Pharmacology, Monash University, Vic, Australia
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Abstract
The prostate gland requires androgenic steroids for its appropriate embryological formation and postpubertal growth and, once at adult size, remains dependent on a continuous supply of androgens for its vitality and function. A reduction of the levels of circulating androgens will rapidly induce apoptosis of the cells of the prostate, leading to extensive glandular regression. Studies of rodent models of prostate response to castration have shown that there are some remarkable changes in the gene activity of prostate epithelial cells leading up to apoptosis. There is now evidence for a critical cell signaling pathway, regulated by c-fos expression, necessary for castration-induced apoptosis, as well as evidence that this signaling initiates an abrupt and transient alteration in the synthesis of fas antigen, p53, bax and bcl-2 proteins in the androgen receptor-expressing prostate epithelial cells, the cellular compartment that appears to be the most affected by castration. However, more recent studies suggest that these castration-induced effects on the prostate epithelial cells might be, at least in part, an indirect response to a critical reduction in blood flow to the prostate gland that precedes the onset of epithelial cell apoptosis. The castration effects on blood flow to the prostate gland seem to be related to vascular degeneration associated with apoptosis of a subset of prostate endothelial cells.
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Abstract
In order to get an insight into androgen-mediated differentiation and development of the prostate, we detected the androgen receptor (AR) mRNA in the urogenital sinus of human foetuses at 12 and 16 weeks of gestation. Cytoplasmic dot hybridization using radiolabelled cDNA probe for human androgen receptor (AR) was performed. The AR mRNA could be detected at 12 weeks of gestation and its level was higher at 16 weeks of gestation.
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Affiliation(s)
- P K Majumder
- Department of Pharmacology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
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Kumar VL, Majumder PK, Kumar V. Androgen deprivation causes up-regulation of androgen receptor transcript in the rat prostate. Mol Cell Biochem 1997; 171:133-8. [PMID: 9201706 DOI: 10.1023/a:1006805503284] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We have studied the effect of androgenic deprivation on the level of androgen receptor transcript in the rat ventral prostate. The rats were treated with estradiol benzoate, flutamide and [D Trp6, des Gly10]gonadotropin releasing hormone (GnRH) for different time periods. These treatments produced a significant decrease in the weight of prostate. Total RNA isolated from the ventral prostates was hybridized with the cDNA probe for androgen receptor. Densitometric analysis of the autoradiographic signal revealed a rise in the level of androgen receptor RNA following treatment of rats with estradiol benzoate and flutamide. Treatment of rats with [D Trp6, des Gly10] GnRH brought about a transient rise in the level of androgen receptor RNA. Thus, our results indicate that androgenic deprivation up-regulates the level of androgen receptor transcript.
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Affiliation(s)
- V L Kumar
- Department of Pharmacology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India
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