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Trajano FMG, Gomes LTDC, Dantas PB, Sena MOD, Oliveira JIN, Ventura S, Gavioli EC, da Silva Junior ED. Effects of histamine on the contractility of the rat distal cauda epididymis. Eur J Pharmacol 2023; 945:175603. [PMID: 36804548 DOI: 10.1016/j.ejphar.2023.175603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 12/21/2022] [Accepted: 02/16/2023] [Indexed: 02/19/2023]
Abstract
The motor activity of the epididymis duct is an essential process for male fertility and it is regulated by hormonal, neuronal and epithelial mechanisms. However, although there is evidence for the presence of histamine in the epididymis, its effects on epididymal motor activity are unknown. This study sought to evaluate the contractile effects of histamine on the rat distal cauda epididymis duct. Segments of the distal cauda epididymis duct from male Wistar rats were isolated and used in isolated organ bath experiments to evaluate the contractile effects of histamine in the absence or presence of antagonists of histamine receptors, α1-adrenoceptors and muscarinic acetylcholine receptors. The effects of histamine on noradrenaline induced contractions were also investigated. Histamine was able to induce phasic contractions on rat distal cauda epididymis duct which were prevented by promethazine 10-1000 nM (H1 receptor antagonist), ranitidine 1-100 μM (H2 receptor antagonist), atropine 100 nM (muscarinic antagonist), and prazosin 100 nM (α1-adrenoceptor antagonist). In addition, histamine was also able to modify noradrenaline-induced contractions possibly via activation of H1 and H2 receptors. In conclusion, this study demonstrates that histamine can induce phasic contractions of rat distal cauda epididymis via H2 receptors and autonomic neurotransmitters. Histamine may also exert modulatory actions on contractions of rat distal cauda epididymis duct induced by adrenergic receptor agonists. Further studies are necessary to unveil the localization of histamine receptors within the epididymal duct and the consequences of manipulation of the histaminergic system on epididymal function and male fertility.
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Affiliation(s)
| | | | - Pedro Brüch Dantas
- Mode of Drug Action Laboratory, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Maele Oliveira de Sena
- Mode of Drug Action Laboratory, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Jonas Ivan Nobre Oliveira
- Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Sabatino Ventura
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Australia
| | - Elaine Cristina Gavioli
- Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Edilson Dantas da Silva Junior
- Mode of Drug Action Laboratory, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; Department of Biophysics and Pharmacology, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
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2
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Mondillo C, Varela ML, Abiuso AMB, Vázquez R. Potential negative effects of anti-histamines on male reproductive function. Reproduction 2018. [DOI: 10.1530/rep-17-0685] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Histamine (HA) is a pleiotropic biogenic amine synthesized exclusively by histidine decarboxylase (HDC) in most mammalian tissues. The literature on the role of HA within the male gonad has expanded over the last years, attracting attention to potential unexpected side-effects of anti-histamines on testicular function. In this regard, HA receptors (HRH1, HRH2 and HRH4) have been described in Leydig cells of different species, including human. Via these receptors, HA has been reported to trigger positive or negative interactions with the LH/hCG signaling pathway depending upon its concentration, thereby contributing to the local control of testicular androgen levels. It should then be considered that anti-histamines may affect testicular homeostasis by increasing or decreasing steroid production. Additionally, HRH1 and HRH2 receptors are present in peritubular and germ cells, and HRH2 antagonists have been found to negatively affect peritubular cells and reduce sperm viability. The potential negative impact of anti-histamines on male reproduction becomes even more dramatic if we consider that HA has also been associated with human sexual behavior and penile erection. What is more, although testicular mast cells are the major source of locally produced HA, recent studies have described HDC expression in macrophages, Leydig cells and germ cells, revealing the existence of multiple sources of HA within the testis. Undoubtedly, the more we learn about the testicular histaminergic system, the more opportunities there will be for rational design of drugs aimed at treating HA-related pathologies, with minimum or nule negative impact on fertility.
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3
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Abiuso AMB, Berensztein E, Pagotto RM, Pereyra EN, Medina V, Martinel Lamas DJ, Besio Moreno M, Pignataro OP, Mondillo C. H4 histamine receptors inhibit steroidogenesis and proliferation in Leydig cells. J Endocrinol 2014; 223:241-53. [PMID: 25253872 DOI: 10.1530/joe-14-0401] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The histamine H4 receptor (HRH4), discovered only 13 years ago, is considered a promising drug target for allergy, inflammation, autoimmune disorders and cancer, as reflected by a steadily growing number of scientific publications and patent applications. Although the presence of HRH4 has been evidenced in the testis, its specific localization or its role has not been established. Herein, we sought to identify the possible involvement of HRH4 in the regulation of Leydig cell function. We first evaluated its expression in MA-10 Leydig tumor cells and then assessed the effects of two HRH4 agonists on steroidogenesis and proliferation. We found that HRH4 is functionally expressed in MA-10 cells, and that its activation leads to the inhibition of LH/human chorionic gonadotropin-induced cAMP production and StAR protein expression. Furthermore, we observed decreased cell proliferation after a 24-h HRH4 agonist treatment. We then detected for the sites of HRH4 expression in the normal rat testis, and detected HRH4 immunostaining in the Leydig cells of rats aged 7-240 days, while 21-day-old rats also presented HRH4 expression in male gametes. Finally, we evaluated the effect of HRH4 activation on the proliferation of normal progenitor and immature rat Leydig cell culture, and both proved to be susceptible to the anti-proliferative effect of HRH4 agonists. Given the importance of histamine (2-(1H-imidazol-4-yl)ethanamine) in human (patho)physiology, continued efforts are directed at elucidating the emerging properties of HRH4 and its ligands. This study reveals new sites of HRH4 expression, and should be considered in the design of selective HRH4 agonists for therapeutic purposes.
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MESH Headings
- Animals
- Blotting, Western
- Bucladesine/pharmacology
- Cell Line, Tumor
- Cell Proliferation
- Cells, Cultured
- Chorionic Gonadotropin/pharmacology
- Cyclic AMP/metabolism
- Dose-Response Relationship, Drug
- Guanidines/pharmacology
- Histamine Agonists/pharmacology
- Immunohistochemistry
- Indoles/pharmacology
- Leydig Cells/drug effects
- Leydig Cells/metabolism
- Male
- Microscopy, Confocal
- Oximes/pharmacology
- Phosphoproteins/metabolism
- Progesterone/metabolism
- Rats, Sprague-Dawley
- Receptors, G-Protein-Coupled/agonists
- Receptors, G-Protein-Coupled/metabolism
- Receptors, Histamine/metabolism
- Receptors, Histamine H4
- Testis/metabolism
- Thiourea/analogs & derivatives
- Thiourea/pharmacology
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Affiliation(s)
- Adriana María Belén Abiuso
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Esperanza Berensztein
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Romina María Pagotto
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Elba Nora Pereyra
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Vanina Medina
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Diego José Martinel Lamas
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Marcos Besio Moreno
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Omar Pedro Pignataro
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
| | - Carolina Mondillo
- Laboratory of Molecular Endocrinology and Signal TransductionInstitute of Biology and Experimental Medicine, National Scientific and Technical Research Council (IByME-CONICET), CP 1428 Buenos Aires, ArgentinaResearch LaboratoryEndocrinology Service, Garrahan Pediatric Hospital, CP 1245 Buenos Aires, ArgentinaCell Biology UnitInstitut Pasteur de Montevideo, CP 11400 Montevideo, UruguayLaboratory of RadioisotopesSchool of Pharmacy and Biochemistry, University of Buenos Aires, CP 1113 Buenos Aires, ArgentinaInstitute for Biomedical Research (BIOMED)School of Medical Sciences, Pontifical Catholic University of Argentina, National Scientific and Technical Research Council (UCA-CONICET), CP1107 Buenos Aires, ArgentinaDepartment of Biological ChemistrySchool of Sciences, University of Buenos Aires, CP 1428 Buenos Aires, Argentina
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4
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Fennell LM, Fleming JV. Differential processing of mammalian L-histidine decarboxylase enzymes. Biochem Biophys Res Commun 2014; 445:304-9. [PMID: 24508257 DOI: 10.1016/j.bbrc.2014.01.178] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Accepted: 01/28/2014] [Indexed: 11/19/2022]
Abstract
In the mammalian species studied so far, the L-histidine decarboxylase (HDC) enzyme responsible for histamine biosynthesis has been shown to undergo post-translational processing. The processing is best characterized for the mouse enzyme, where di-asparate DD motifs mediate the production of active ~55 and ~60 kDa isoforms from the ~74 kDa precursor in a caspase-9 dependent manner. The identification of conserved di-aspartate motifs at similar locations in the rat and human HDC protein sequences has led to proposals that these may represent important processing sites in these species also. Here we used transfected Cos7 cells to demonstrate that the rat and human HDC proteins undergo differential processing compared to each other, and found no evidence to suggest that conserved di-aspartate motifs are required absolutely for processing in this cell type. Instead we identified SKD and EEAPD motifs that are important for caspase-6 dependent production of ~54 and ~59 kDa isoforms in the rat and human proteins, respectively. The addition of staurosporine, which is known to pharmacologically activate caspase enzymes, increased processing of the human HDC protein. We propose that caspase-dependent processing is a conserved feature of mammalian HDC enzymes, but that proteolysis may involve different enzymes and occur at diverse sites and sequences.
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Affiliation(s)
- Lilian M Fennell
- School of Biochemistry and Cell Biology, School of Pharmacy, and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland
| | - John V Fleming
- School of Biochemistry and Cell Biology, School of Pharmacy, and Analytical and Biological Chemistry Research Facility, University College Cork, Cork, Ireland.
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5
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Gupta A, Mahdi AA, Shukla KK, Ahmad MK, Bansal N, Sankhwar P, Sankhwar SN. Efficacy of Withania somnifera on seminal plasma metabolites of infertile males: a proton NMR study at 800 MHz. JOURNAL OF ETHNOPHARMACOLOGY 2013; 149:208-14. [PMID: 23796876 DOI: 10.1016/j.jep.2013.06.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 05/29/2013] [Accepted: 06/14/2013] [Indexed: 05/25/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Indian systems of medicine use roots of Withania somnifera for impotence, infertility treatment, stress, and the aging process. Although Withania somnifera improves semen quality by regulating reproductive hormone levels and oxidative stress, the molecular mechanism is not clear. AIM OF THE STUDY Our study uses high-resolution Nuclear Magnetic Resonance (NMR) spectroscopy to explore the scientific basis to reveal the pre- and post-treatment efficacy of Withania somnifera on seminal plasma of infertile men-which remains unexplored to date. MATERIALS AND METHODS A total of 180 infertile male patients were administered Withania somnifera root powder at the rate of 5 g/d for a 3-month period. The study included age-matched, healthy men as a control (n=50) group. Proton NMR spectroscopy was used to measure lactate, alanine, glutamate, glutamine, citrate, lysine, choline, glycerophosphocholine (GPC), glycine, tyrosine, histidine, phenylalanine, and uridine in all seminal plasma samples. To appraise infertility levels, we also measured sperm concentration, motility, lipid peroxide, and hormonal perturbation. RESULTS Withania somnifera therapy repairs the disturbed concentrations of lactate, alanine, citrate, GPC, histidine, and phenylalanine in seminal plasma and recovers the quality of semen of post-treated compared to pre-treated infertile men. Serum biochemistry was also improved over post-therapy in infertile men. Our findings reveal that Withania somnifera not only reboots enzymatic activity of metabolic pathways and energy metabolism but also invigorates the harmonic balance of seminal plasma metabolites and reproductive hormones in infertile men. CONCLUSION The results suggest that Withania somnifera may be used as an empirical therapy for clinical management and treatment of infertility.
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Affiliation(s)
- Ashish Gupta
- Centre of Biomedical Magnetic Resonance, SGPGIMS Campus, Lucknow, India.
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6
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Pagotto RM, Monzón C, Moreno MB, Pignataro OP, Mondillo C. Proliferative effect of histamine on MA-10 Leydig tumor cells mediated through HRH2 activation, transient elevation in cAMP production, and increased extracellular signal-regulated kinase phosphorylation levels. Biol Reprod 2012; 87:150. [PMID: 23077168 DOI: 10.1095/biolreprod.112.102905] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Mast cells (MC) occur normally in the testis with a species-specific distribution, yet their precise role remains unclear. Testicular MC express histidine decarboxylase (HDC), the unique enzyme responsible for histamine (HA) generation. Evidence to date supports a role for HA as a local regulator of steroidogenesis via functional H₁ and H₂ receptor subtypes (HRH1 and HRH2, respectively) present in Leydig cells. Given that HA is a well-known modulator of physiological and pathological proliferation in many different cell types, we aimed in the present study to evaluate whether HA might contribute to the regulation of Leydig cell number as well as to the control of androgen production. Herein, we demonstrate, to our knowledge for the first time, that MA-10 Leydig tumor cells, but not normal immature Leydig cells (ILC), exhibit a proliferative response upon stimulation with HA that involves HRH2 activation, transient elevation of cAMP levels, and increased extracellular signal-regulated kinase (ERK) phosphorylation. Our results also reveal that MA-10 cells show significantly heightened HDC expression compared to normal ILC or whole-testicular lysate and that inhibition of HDC activity decreases MA-10 cell proliferation, suggesting a possible correlation between autocrine overproduction of HA and abnormally increased proliferation in Leydig cells. The facts that germ cells are also both source and target of HA and that multiple testicular cells are susceptible to HA action underline the importance of the present study, which we hope will serve as a first step for further research into regulation of non-MC-related HDC expression within the testis and its significance for testicular function.
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Affiliation(s)
- Romina María Pagotto
- Laboratory of Molecular Endocrinology and Signal Transduction, Institute of Biology and Experimental Medicine, National Research Council (IByME-CONICET), Buenos Aires, Argentina
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7
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Gupta A, Mahdi AA, Ahmad MK, Shukla KK, Bansal N, Jaiswer SP, Shankhwar SN. A proton NMR study of the effect of Mucuna pruriens on seminal plasma metabolites of infertile males. J Pharm Biomed Anal 2011; 55:1060-6. [DOI: 10.1016/j.jpba.2011.03.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 03/03/2011] [Accepted: 03/05/2011] [Indexed: 10/18/2022]
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8
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Mondillo C. La histamina en el testículo: nuevas funciones a través de receptores clásicos H1 y H2. Rev Int Androl 2011. [DOI: 10.1016/s1698-031x(11)70014-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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9
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Gupta A, Mahdi AA, Ahmad MK, Shukla KK, Jaiswer SP, Shankhwar SN. 1H NMR spectroscopic studies on human seminal plasma: A probative discriminant function analysis classification model. J Pharm Biomed Anal 2011; 54:106-13. [DOI: 10.1016/j.jpba.2010.07.021] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2010] [Revised: 07/06/2010] [Accepted: 07/18/2010] [Indexed: 10/19/2022]
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10
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Ichikawa A, Sugimoto Y, Tanaka S. Molecular biology of histidine decarboxylase and prostaglandin receptors. PROCEEDINGS OF THE JAPAN ACADEMY. SERIES B, PHYSICAL AND BIOLOGICAL SCIENCES 2010; 86:848-66. [PMID: 20948178 PMCID: PMC3037517 DOI: 10.2183/pjab.86.848] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Histamine and prostaglandins (PGs) play a variety of physiological roles as autacoids, which function in the vicinity of their sources and maintain local homeostasis in the body. They stimulate target cells by acting on their specific receptors, which are coupled to trimeric G proteins. For the precise understanding of the physiological roles of histamine and PGs, it is necessary to clarify the molecular mechanisms involved in their synthesis as well as their receptor-mediated responses. We cloned the cDNAs for mouse L-histidine decarboxylase (HDC) and 6 mouse prostanoid receptors (4 PGE(2) receptors, PGF receptor, and PGI receptor). We then characterized the expression patterns and functions of these genes. Furthermore, we established gene-targeted mouse strains for HDC and PG receptors to explore the novel pathophysiological roles of histamine and PGs. We have here summarized our research, which should contribute to progress in the molecular biology of HDC and PG receptors.
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MESH Headings
- Animals
- Cloning, Molecular
- DNA, Complementary/metabolism
- Gene Expression Profiling
- Gene Expression Regulation, Enzymologic
- Histamine/chemistry
- Histidine Decarboxylase/genetics
- Histidine Decarboxylase/metabolism
- Homeostasis
- Humans
- Mice
- Models, Biological
- Receptors, Prostaglandin/genetics
- Receptors, Prostaglandin/metabolism
- Receptors, Prostaglandin E, EP3 Subtype/genetics
- Receptors, Prostaglandin E, EP3 Subtype/metabolism
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Affiliation(s)
- Atsushi Ichikawa
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan.
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11
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Abel MH, Baban D, Lee S, Charlton HM, O'Shaughnessy PJ. Effects of FSH on testicular mRNA transcript levels in the hypogonadal mouse. J Mol Endocrinol 2009; 42:291-303. [PMID: 19136570 PMCID: PMC2659293 DOI: 10.1677/jme-08-0107] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
FSH acts through the Sertoli cell to ensure normal testicular development and function. To identify transcriptional mechanisms through which FSH acts in the testis, we have treated gonadotrophin-deficient hypogonadal (hpg) mice with recombinant FSH and measured changes in testicular transcript levels using microarrays and real-time PCR 12, 24 and 72 h after the start of treatment. Approximately 400 transcripts were significantly altered at each time point by FSH treatment. At 12 h, there was a clear increase in the levels of a number of known Sertoli cell transcripts (e.g. Fabp5, Lgals1, Tesc, Scara5, Aqp5). Additionally, levels of Leydig cell transcripts were also markedly increased (e.g. Ren1, Cyp17a1, Akr1b7, Star, Nr4a1). This was associated with a small but significant rise in testosterone at 24 and 72 h. At 24 h, androgen-dependent Sertoli cell transcripts were up-regulated (e.g. Rhox5, Drd4, Spinlw1, Tubb3 and Tsx) and this trend continued up to 72 h. By contrast with the somatic cells, only five germ cell transcripts (Dkkl1, Hdc, Pou5f1, Zfp541 and 1700021K02Rik) were altered by FSH within the time-course of the experiment. Analysis of canonical pathways showed that FSH induced a general decline in transcripts related to formation and regulation of tight junctions. Results show that FSH acts directly and indirectly to induce rapid changes in Sertoli cell and Leydig cell transcript levels in the hpg mouse but that effects on germ cell development must occur over a longer time-span.
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Affiliation(s)
| | | | | | | | - P J O'Shaughnessy
- Institute of Comparative MedicineUniversity of Glasgow Veterinary SchoolBearsden Road, Glasgow, G61 1QHUK
- Correspondence should be addressed to P J O'Shaughnessy;
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12
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Mondillo C, Pagotto RM, Piotrkowski B, Reche CG, Patrignani ZJ, Cymeryng CB, Pignataro OP. Involvement of nitric oxide synthase in the mechanism of histamine-induced inhibition of Leydig cell steroidogenesis via histamine receptor subtypes in Sprague-Dawley rats. Biol Reprod 2008; 80:144-52. [PMID: 18768916 DOI: 10.1095/biolreprod.108.069484] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
This study was conducted to shed light on the so far unexplored intracellular mechanisms underlying negative modulation of Leydig cell steroidogenesis by histamine (HA). Using the MA-10 cell line and highly purified rat Leydig cells as experimental models, we examined the effect of the amine on biochemical steps known to be modulated by HA or involved in LH/hCG action. In agreement with previous findings, HA at 10 microM showed a potent inhibitory effect on hCG-stimulated steroid synthesis, regardless of the gonadotropin concentration used. Moreover, HA decreased not only LH/hCG-induced cAMP production but also steroid synthesis stimulated by the permeable cAMP analog dibutyryl cAMP (db-cAMP). Considering the post-cAMP sites of HA action, it is shown herein that HA markedly inhibited db-cAMP-stimulated steroidogenic acute regulatory (STAR) protein expression, as well as steps catalyzed by P450-dependent enzymes, mainly the conversion of cholesterol to pregnenolone by cholesterol side-chain cleavage enzyme (CYP11A). The antisteroidogenic action of HA was blocked by addition of the phospholipase C (PLC) inhibitor U73122, and HA significantly augmented inositol triphosphate (IP3) production, suggesting a major role for the PLC/IP3 pathway in HA-induced inhibition of Leydig cell function. Finally, HA increased nitric oxide synthase (NOS) activity, and the NOS inhibitor NG-nitro-L-arginine methyl ester (L-NAME) markedly attenuated the effect of the amine on steroid synthesis. On the basis of our findings, HA antagonizes the gonadotropin action in Leydig cells at steps before and after cAMP formation. NOS activation is the main intracellular mechanism by which HA exerts its antisteroidogenic effects.
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Affiliation(s)
- Carolina Mondillo
- Laboratory of Molecular Endocrinology and Signal Transduction, Institute of Biology and Experimental Medicine-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), CP 1428, Buenos Aires, Argentina.
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13
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Tachibana M, Wada K, Katayama K, Kamisaki Y, Maeyama K, Kadowaki T, Blumberg RS, Nakajima A. Activation of peroxisome proliferator-activated receptor gamma suppresses mast cell maturation involved in allergic diseases. Allergy 2008; 63:1136-47. [PMID: 18547288 DOI: 10.1111/j.1398-9995.2008.01677.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Mast cells play a central role in allergic and inflammatory diseases. Several reports indicated role of peroxisome proliferator-activated receptor gamma (PPARgamma) on mast cell function. However, there is no report about the role of PPARgamma on differentiation of mast cells from the progenitors. In this study, we investigated the role of PPARgamma in regulating bone marrow-derived mast cell maturation and the therapeutic implications for mast cell-related diseases such as atopic or contact dermatitis. METHODS We used in vitro cell culture system for mast cell differentiation from bone marrow-progenitors using specific ligands and lentiviral-mediated short hairpin RNA of PPARgamma, and in vivo murine dermatitis models. RESULTS Activation of PPARgamma inhibited the maturation of bone marrow progenitors into connective tissue-type mast cells (CTMCs) through up-regulation of GATA-4 and GATA-6 resulting in a decrease in expression of histidine decarboxylase and mast cell histamine content. In comparison, the differentiation of bone marrow progenitors into CTMCs was significantly accelerated by the knockdown of PPARgamma expression by lentiviral-mediated short hairpin RNA. Peroxisome proliferator-activated receptor gamma ligand administration to mice inhibited the maturation of mast cells resulting in attenuation of atopic and contact dermatitis via diminishment of the number of mature mast cells. CONCLUSION Our results indicate that PPARgamma is one of master regulators on mast cell maturation and potentially useful for the therapy in various disorders involving mast cell activation.
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Affiliation(s)
- M Tachibana
- Gastroenterology Division, Yokohama City University School of Medicine, Yokohama, Japan
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14
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Abel MH, Baker PJ, Charlton HM, Monteiro A, Verhoeven G, de Gendt K, Guillou F, O'Shaughnessy PJ. Spermatogenesis and sertoli cell activity in mice lacking sertoli cell receptors for follicle-stimulating hormone and androgen. Endocrinology 2008; 149:3279-85. [PMID: 18403489 PMCID: PMC2592075 DOI: 10.1210/en.2008-0086] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Spermatogenesis in the adult male depends on the action of FSH and androgen. Ablation of either hormone has deleterious effects on Sertoli cell function and the progression of germ cells through spermatogenesis. In this study we generated mice lacking both FSH receptors (FSHRKO) and androgen receptors on the Sertoli cell (SCARKO) to examine how FSH and androgen combine to regulate Sertoli cell function and spermatogenesis. Sertoli cell number in FSHRKO-SCARKO mice was reduced by about 50% but was not significantly different from FSHRKO mice. In contrast, total germ cell number in FSHRKO-SCARKO mice was reduced to 2% of control mice (and 20% of SCARKO mice) due to a failure to progress beyond early meiosis. Measurement of Sertoli cell-specific transcript levels showed that about a third were independent of hormonal action on the Sertoli cell, whereas others were predominantly androgen dependent or showed redundant control by FSH and androgen. Results show that FSH and androgen act through redundant, additive, and synergistic regulation of spermatogenesis and Sertoli cell activity. In addition, the Sertoli cell retains a significant capacity for activity, which is independent of direct hormonal regulation.
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Affiliation(s)
- MH Abel
- Department of Human Anatomy and Genetics, University of Oxford, South Parks Rd, Oxford OX1 3QX, UK
| | - PJ Baker
- Division of Cell Sciences, University of Glasgow Veterinary School, Bearsden Rd, Glasgow G61 1QH, UK
| | - HM Charlton
- Department of Human Anatomy and Genetics, University of Oxford, South Parks Rd, Oxford OX1 3QX, UK
| | - A Monteiro
- Division of Cell Sciences, University of Glasgow Veterinary School, Bearsden Rd, Glasgow G61 1QH, UK
| | - G Verhoeven
- Laboratory for Experimental Medicine and Endocrinology, Catholic University of Leuven, B-3000 Leuven, Belgium
| | - K de Gendt
- Laboratory for Experimental Medicine and Endocrinology, Catholic University of Leuven, B-3000 Leuven, Belgium
| | - F Guillou
- UMR 6175 Institut National de la Recherche Agronomique, Centre National de Recherche Scientifique, Université de Tours, 37380 Nouzilly, France
| | - PJ O'Shaughnessy
- Division of Cell Sciences, University of Glasgow Veterinary School, Bearsden Rd, Glasgow G61 1QH, UK
- Correspondence e-mail , Telephone ++44 141 330 5793, Fax ++44 141 330 5797
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15
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Furuta K, Nakayama K, Sugimoto Y, Ichikawa A, Tanaka S. Activation of histidine decarboxylase through post-translational cleavage by caspase-9 in a mouse mastocytoma P-815. J Biol Chem 2007; 282:13438-46. [PMID: 17360717 DOI: 10.1074/jbc.m609943200] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
L-Histidine decarboxylase (HDC) is the rate-limiting enzyme for histamine synthesis in mammals. Although accumulating evidence has indicated the post-translational processing of HDC, it remains unknown what kinds of proteases are involved. We investigated the processing of HDC in a mouse mastocytoma, P-815, using a lentiviral expression system. HDC was expressed as a 74-kDa precursor form, which is cleaved to yield the 55- and 60-kDa forms upon treatment with butyrate. Alanine-scanning mutations revealed that two tandem aspartate residues (Asp(517)-Asp(518), Asp(550)-Asp(551)) are critical for the processing. Treatment with butyrate caused an increase in the enzyme activity of the cells expressing the wild type HDC, but not in the cells expressing the processing-incompetent mutant. An increase in histamine synthesis by butyrate was accompanied by formation of the 55- and 60-kDa form of HDC. In addition, the in vitro translated 74-kDa form of HDC was found to undergo a limited cleavage by purified human caspase-9, whereas the alanine-substituted mutants were not. Processing and enzymatic activation of HDC in P-815 cells was enhanced in the presence of a Zn(2+) chelator, TPEN. Although treatment with butyrate and TPEN drastically augmented the protease activity of caspase-3, and -9, no apoptotic cell death was observed. Both enzymatic activation and processing of HDC were completely suppressed by a pan-caspase inhibitor, partially but significantly by a specific inhibitor for caspase-9, but not by a caspase-3 inhibitor. These results suggest that, in P-815 cells, histamine synthesis is augmented through the post-translational cleavage of HDC, which is mediated by caspase-9.
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Affiliation(s)
- Kazuyuki Furuta
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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16
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Leguia M, Wessel GM. The histamine H1 receptor activates the nitric oxide pathway at fertilization. Mol Reprod Dev 2006; 73:1550-63. [PMID: 16894544 DOI: 10.1002/mrd.20586] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Sperm fusion with the egg initiates a signaling cascade that releases intracellular calcium (Ca(i) (2+)) from the endoplasmic reticulum (ER). In sea urchins, Ca(2+) is released as a single, large transient via two distinct pathways. The first depends on inositol 1,4,5-triphosphate (IP(3)) production and triggers the initial phase of Ca(2+) release, while the second depends on nitric oxide (NO) production and is thought to maintain the duration of the Ca(2+) wave. We identified a sea urchin homolog of the seven trans-membrane G protein-coupled receptor for histamine (suH(1)R) on the egg cell surface that activates NO production. Treatment with histamine (HA) causes fluctuations in the resting levels of NO in the egg, while antagonists or antibodies of H(1)R inhibit the rise of NO normally observed at fertilization. Inhibition of suH(1)R function decreases the maintenance, but not the amplitude, of the Ca(2+) transient and suggests that it is an integral part of the overall pathway leading to egg activation at fertilization in sea urchins.
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Affiliation(s)
- Mariana Leguia
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, Rhode Island 02912, USA
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17
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Ai W, Takaishi S, Wang TC, Fleming JV. Regulation of l‐Histidine Decarboxylase and Its Role in Carcinogenesis. PROGRESS IN NUCLEIC ACID RESEARCH AND MOLECULAR BIOLOGY 2006; 81:231-70. [PMID: 16891173 DOI: 10.1016/s0079-6603(06)81006-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Wandong Ai
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University, Irving Cancer Research Center, New York, New York 10032, USA
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18
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Liu Y, Furuta K, Teshima R, Shirata N, Sugimoto Y, Ichikawa A, Tanaka S. Critical Role of Protein Kinase C βII in Activation of Mast Cells by Monomeric IgE. J Biol Chem 2005; 280:38976-81. [PMID: 16183638 DOI: 10.1074/jbc.m506351200] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Accumulating evidence suggests that IgE-mediated activation of mast cells occurs even in the absence of antigen, which is referred to as "monomeric IgE" responses. Although monomeric IgE was found to induce a wide variety of responses, such as up-regulation of the FcepsilonRI, survival, cytokine production, histamine synthesis, and adhesion to fibronectin, it remains to be clarified how mast cells are activated in the absence of antigen. It has been controversial whether monomeric IgE responses are mediated by a similar signaling mechanism to antigen stimulation, although recent studies suggest that IgE can induce the FcepsilonRI aggregation even in the absence of antigen. In this study, we focused on the role of conventional protein kinase C (cPKC), since this response is suppressed by a specific inhibitor for cPKC. Monomeric IgE-induced Ca(2+) influx was not observed in a mouse mastocytoma cell line, which lacks the expression of PKCbetaII, although Ca(2+) influx induced by cross-linking of the FcepsilonRI was intact. Transfection of PKCbetaII cDNA was found to restore the Ca(2+) influx induced by monomeric IgE in this cell line. Furthermore, the dominant negative form of PKCbetaII (PKCbetaII/T500V) significantly suppressed the Ca(2+) influx, histamine synthesis, and interleukin-6 production in another mouse mast cell line, which is highly sensitive to monomeric IgE. Expression of PKCbetaII/T500V was found not to affect the antigen-induced responses. These results suggest that PKCbetaII plays a critical role in monomeric IgE responses, but not in antigen responses.
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Affiliation(s)
- Ying Liu
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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19
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Cianchi F, Cortesini C, Schiavone N, Perna F, Magnelli L, Fanti E, Bani D, Messerini L, Fabbroni V, Perigli G, Capaccioli S, Masini E. The Role of Cyclooxygenase-2 in Mediating the Effects of Histamine on Cell Proliferation and Vascular Endothelial Growth Factor Production in Colorectal Cancer. Clin Cancer Res 2005; 11:6807-15. [PMID: 16203768 DOI: 10.1158/1078-0432.ccr-05-0675] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Activity of histidine decarboxylase, the key enzyme in the synthesis of histamine, has been shown to be increased in several types of human tumors. We attempted to establish whether the possible involvement of histidine decarboxylase and histamine in colorectal carcinogenesis might be mediated by the activation of the cyclooxygenase-2 (COX-2) pathway. EXPERIMENTAL DESIGN Expression/activity of histidine decarboxylase, histamine content, and prostaglandin E2 (PGE2) production were analyzed in 33 colorectal cancer samples and in the HT29, Caco-2, and HCT116 colon cancer cell lines. The effects of histamine, celecoxib, and H1, H2, and H4 receptor antagonists on COX-2 expression/activity, cell proliferation, and vascular endothelial growth factor (VEGF) production were assessed in the three colon cancer lines that showed different constitutive COX-2 expression. RESULTS We showed the up-regulation of histidine decarboxylase protein expression and activity in the tumor specimens when compared with normal colonic mucosa. Histidine decarboxylase activity and histamine content were also significantly higher in metastatic tumors than in nonmetastatic ones. These variables significantly correlated with tumor PGE(2) production. The administration of histamine increased COX-2 expression/activity, cell proliferation, and VEGF production in the COX-2-positive HT29 and Caco-2 cells. Treatment with either H2/H4 receptor antagonists or celecoxib prevented these effects. Histamine had no effect on both the COX-2 pathway and VEGF production in the COX-2-negative HCT116 cells. CONCLUSIONS Our data showed that histamine exerts both a proproliferative and a proangiogenic effect via H2/H4 receptor activation. These effects are likely to be mediated by increasing COX-2-related PGE2 production in COX-2-expressing colon cancer cells.
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Affiliation(s)
- Fabio Cianchi
- Department of General Surgery, Medical School, University of Florence, Italy.
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20
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Mondillo C, Patrignani Z, Reche C, Rivera E, Pignataro O. Dual role of histamine in modulation of Leydig cell steroidogenesis via HRH1 and HRH2 receptor subtypes. Biol Reprod 2005; 73:899-907. [PMID: 15917347 DOI: 10.1095/biolreprod.105.041285] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Although several reports indicate effects of histamine (HA) on female reproductive functions, scant literature exists to suggest a physiological role of HA in the male gonad. In the present study, we report a dual concentration-dependent effect of HA on steroidogenesis in MA-10 murine Leydig cells and purified rat Leydig cells. Although 1 nM HA can stimulate steroid production and significantly increase the response to LH/hCG in these cells, 10 microM HA exerts an inhibitory effect. We also provide confirming evidence for the existence of functional HRH1 and HRH2 receptors in both experimental models. The use of HRH1 and HRH2 selective agonists and antagonists led us to suggest that HRH2 activation would be largely responsible for stimulation of steroidogenesis, while HRH1 activation is required for inhibition of steroid synthesis. Our results regarding signal transduction pathways associated with these receptors indicate the coupling of HRH2 to the adenylate cyclase system through direct interaction with a Gs protein. Moreover, we show HRH1 activation mediates increases in inositol phosphate production, possibly due to coupling of this receptor to Gq protein and phospholipase C activation. The data compiled in this report clearly indicate that HA can modulate Leydig cell steroidogenesis in the testis and suggest a possible new physiological site of action for HA. Given that many drugs binding to HRH1, HRH2, or both, are widely prescribed for the treatment of diverse HA-related pathologies, it seems necessary to increase the knowledge regarding histaminergic regulation of testicular functions, to avoid possible unexpected side effects of such substances in the testis.
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Affiliation(s)
- Carolina Mondillo
- Lab of Molecular Endocrinology and Signal Transduction, Institute of Biology and Experimental Medicine-CONICET, CP 1428, Buenos Aires, Argentina
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21
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Albrecht M, Frungieri MB, Gonzalez-Calvar S, Meineke V, Köhn FM, Mayerhofer A. Evidence for a histaminergic system in the human testis. Fertil Steril 2005; 83:1060-3. [PMID: 15820830 DOI: 10.1016/j.fertnstert.2004.12.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2004] [Revised: 09/10/2004] [Accepted: 09/10/2004] [Indexed: 10/25/2022]
Abstract
The complete lack of information about mast cells as a source of histamine and potential target cells for histamine in human testes prompted us to investigate these issues in testes of fertile and infertile patients using a combination of laser microdissection, reverse transcription-polymerase chain reaction (RT-PCR), and immunohistochemistry. We show for the first time the expression of the rate-limiting enzyme in histamine synthesis-histidine decarboxylase-by human testicular mast cells and the expression of the histamine (H) receptors 1 (H1) and 2 (H2) by germinal, interstitial, and peritubular cells in the testes of fertile and infertile patients.
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Affiliation(s)
- Martin Albrecht
- Anatomisches Institut am Biederstein, Ludwig-Maximilians-Universität, Biedersteiner Strasse 29, 80802 Munich, Germany.
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22
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Tanaka S, Mikura S, Hashimoto E, Sugimoto Y, Ichikawa A. Ca2+ influx-mediated histamine synthesis and IL-6 release in mast cells activated by monomeric IgE. Eur J Immunol 2005; 35:460-8. [PMID: 15668925 DOI: 10.1002/eji.200425622] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
We previously demonstrated that histamine synthesis is drastically induced upon sensitization with an anti-DNP IgE clone, SPE-7, in IL-3-dependent mouse bone marrow derived mast cells (BMMC). We found that Ca2+ mobilization induced by SPE-7 exhibited a similar profile to the capacitative Ca2+ entry evoked by thapsigargin. Potentials for activation of mast cells were found to vary between different IgE clones, and a monovalent hapten, DNP-lysine, suppressed the activation induced by SPE-7. Ca2+ mobilization induced by SPE-7 was suppressed potently by the specific store-operated Ca2+ channel inhibitor, SK&F 96365, but not at all by Ca2+ channel inhibitors with more broad spectrum, La3+ and Gd3+, whereas the Ca2+ mobilization induced by Ag stimulation was suppressed by these inhibitors. Ca2+ mobilization was also induced by SPE-7 in in vitro differentiated mast cells, although the increases in histamine synthesis and IL-6 release were smaller than those in BMMC. These results suggest that Ca2+ influx operated by a distinct mechanism from that in Ag stimulation is essential for increased histamine synthesis and IL-6 release in mast cells.
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Affiliation(s)
- Satoshi Tanaka
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, Japan
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23
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Tomita K, Okabe S. Exogenous histamine stimulates colorectal cancer implant growth via immunosuppression in mice. J Pharmacol Sci 2005; 97:116-23. [PMID: 15655289 DOI: 10.1254/jphs.fp0040691] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Results from a limited number of studies suggest a potential role for endogenous histamine in regulating tumor growth in immunocompetent cells. The present study examined the effects of exogenous histamine on colorectal cancer growth and the immune response against tumor tissue in mice. Histamine was administered for 21 days to Colon 38 mouse colon adenocarcinoma-implanted syngeneic mice and tumor volume was measured throughout the experiment. Systemic administration of histamine for 21 days caused a significant increase in tumor implant growth compared with the vehicle. At the end of histamine administration, the interferon (IFN)-gamma / interleukin (IL)-4 ratio in peripheral lymphocytes, as well as histamine and cytokine levels in tumor implants were determined. Histamine levels in tumor implants remained unchanged after exogenous histamine delivery. Mice with tumor implants exhibited significantly elevated IFN-gamma / IL-4 ratios compared with mice lacking tumors. Nonetheless, the increased IFN-gamma / IL-4 ratios were markedly suppressed by histamine administration compared with vehicle. In addition, histamine delivery significantly decreased IFN-gamma and IL-12 mRNA expression, but increased IL-10 mRNA expression in tumor implants. It was concluded that exogenous histamine dysregulates the balance between T-helper 1 (Th1) and T-helper 2 (Th2) cells, attenuating anti-tumor cytokine expression in the tumor microenvironment, thus resulting in stimulated colorectal cancer growth.
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Affiliation(s)
- Kazuyoshi Tomita
- Department of Applied Pharmacology, Kyoto Pharmaceutical University, Japan
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24
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Fleming J, Fajardo I, Langlois M, SáNCHEZ-JIMéNEZ F, Wang T. The C-terminus of rat L-histidine decarboxylase specifically inhibits enzymic activity and disrupts pyridoxal phosphate-dependent interactions with L-histidine substrate analogues. Biochem J 2004; 381:769-78. [PMID: 15089748 PMCID: PMC1133887 DOI: 10.1042/bj20031553] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2003] [Revised: 04/06/2004] [Accepted: 04/19/2004] [Indexed: 11/17/2022]
Abstract
Full-length rat HDC (L-histidine decarboxylase) translated in reticulocyte cell lysate reactions is inactive, whereas C-terminally truncated isoforms are capable of histamine biosynthesis. C-terminal processing of the approximately 74 kDa full-length protein occurs naturally in vivo, with the production of multiple truncated isoforms. The minimal C-terminal truncation required for the acquisition of catalytic competence has yet to be defined, however, and it remains unclear as to why truncation is needed. Here we show that approximately 74 kDa HDC monomers can form dimers, which is the conformation in which the enzyme is thought to be catalytically active. Nevertheless, the resulting dimer is unable to establish pyridoxal phosphate-dependent interactions with an L-histidine substrate analogue. Protein sequences localized to between amino acids 617 and 633 specifically mediate this inhibition. Removing this region or replacing the entire C-terminus with non-HDC protein sequences permitted interactions with the substrate analogue to be re-established. This corresponded exactly with the acquisition of catalytic competence, and the ability to decarboxylate natural L-histidine substrate. These studies suggested that the approximately 74 kDa full-length isoform is deficient in substrate binding, and demonstrated that C-terminally truncated isoforms with molecular masses between approximately 70 kDa and approximately 58 kDa have gradually increasing specific activities. The physiological relevance of our results is discussed in the context of differential expression of HDC isoforms in vivo.
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Affiliation(s)
- John V. Fleming
- *University of Massachusetts Medical School, Worcester, MA 01605, U.S.A
- †Institute of Molecular Medicine, University of Lisbon, Lisboa 1649-028, Portugal
- Correspondence may be sent to either author [email (J.V.F.) or (T.C.W.)]
| | - Ignacio Fajardo
- ‡Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Málaga 29071, Spain
| | | | - Francisca SáNCHEZ-JIMéNEZ
- ‡Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Málaga 29071, Spain
| | - Timothy C. Wang
- *University of Massachusetts Medical School, Worcester, MA 01605, U.S.A
- Correspondence may be sent to either author [email (J.V.F.) or (T.C.W.)]
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25
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Sasaguri Y, Tanimoto A. Role of macrophage-derived histamine in atherosclerosis-- chronic participation in the inflammatory response --. J Atheroscler Thromb 2004; 11:122-30. [PMID: 15256763 DOI: 10.5551/jat.11.122] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The atherosclerotic intimal lesion contains endothelial cells, smooth muscle cells, monocytes/macrophages and T lymphocytes, which constitute a histamine-cytokine network that participates in chronic inflammatory responses. Monocytes/macrophages and T lymphocytes express the histamine-producing enzyme histidine decarboxylase (HDC), and specific histamine receptors (HHR), which are switched from HH2R to HHR1 during macrophage differentiation. Endothelial and smooth muscle cells also express HHR in response to histamine. The effects of histamine on these cells include a regulation of atherosclerosis-related events such as cell proliferation, expression of matrix metalloproteinase, adhesion molecules and cytokines. Furthermore, recent studies have indicated that histamine and the activation of its specific receptors modulate the Th1/Th2 balance in inflammatory lesions through the regulation of cytokine production from inflammatory cells. The histamine-cytokine network in the atherosclerotic intima could regulate inflammatory and immune responses, including Th1/Th2 balance, and contribute to atherogenesis.
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Affiliation(s)
- Yasuyuki Sasaguri
- Department of Pathology and Cell Biology, School of Medicine, University of Occupational and Environmental Health.
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26
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Abstract
Histamine is involved in a variety of physiologic responses, such as inflammation, type I allergy, gastric acid secretion, and neurotransmission. Previous studies have focused on specific receptors for histamine and histamine release through degranulation, and the regulation of histamine synthesis and its physiologic roles remain to be clarified. We have studied histidine decarboxylase (HDC), the rate-limiting enzyme for mammalian histamine synthesis. Immunocytochemical approaches with an anti-HDC antibody revealed that histamine synthesis occurs in two distinct compartments of mast cells, cytosol and granules, and is regulated by the posttranslational processing of HDC. We also found that histamine synthesis in mast cells is markedly induced by IgE even in the absence of antigens, which may be relevant to enhanced responses of mast cells under allergic conditions. We then developed HDC-deficient mice by gene targeting to investigate the physiologic roles of histamine. We not only confirmed that histamine is essential for type I allergy and stimulates gastric acid secretion, but also found that histamine may regulate the proliferation and differentiation of mast cells. Furthermore, in HDC-deficient mice histamine produced by infiltrated neutrophils can suppress the production of antitumoral cytokines, such as interferon-gamma and tumor necrosis factor-alpha through H2 receptors in the tumor tissues. In this review, we describe recent topics in histamine research, including our results focusing on histamine synthesis and its physiologic roles.
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Affiliation(s)
- Satoshi Tanaka
- Department of Physiological Chemistry, Graduate School of Pharmaceutical Sciences, Kyoto University, 46-29 Yoshida Shimoadachi-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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27
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Fleming JV, Wang TC. The production of 53-55-kDa isoforms is not required for rat L-histidine decarboxylase activity. J Biol Chem 2003; 278:686-94. [PMID: 12414789 DOI: 10.1074/jbc.m210718200] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Post-translational processing of the histamine-producing enzyme, L-histidine decarboxylase (HDC), leads to the formation of multiple carboxyl-truncated isoforms. Nevertheless, it has been widely reported that the mature catalytically active dimer is dependent specifically on the production of carboxyl-truncated 53-55-kDa monomers. Here we use transiently transfected COS-7 cells to study the properties of carboxyl-truncated rat HDC isoforms in the 52-58-kDa size range. Amino acid sequences important for the production of a 55-kDa HDC isoform were identified by successive truncations through amino acids 502, 503, and 504. Mutating this sequence in the full-length protein prevented the production of 55-kDa HDC but did not affect enzymatic activity. Further truncations to amino acid 472 generated an inactive 53-kDa HDC isoform that was degraded by the proteasome pathway. These results suggested that processed isoforms, apart from 53-55-kDa ones, contribute toward histamine biosynthesis in vivo. This was confirmed in physiological studies where regulated increases in HDC activity were associated with the expression of isoforms that were greater than 55 kDa in size. We provide evidence to show that regulation of HDC expression can be achieved by the differential production or differential stabilization of multiple enzyme isoforms.
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Affiliation(s)
- John V Fleming
- University of Massachusetts Medical School, Worcester, Massachusetts 01655, USA
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