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Pasha A, Tondo A, Favre C, Calvani M. Inside the Biology of the β3-Adrenoceptor. Biomolecules 2024; 14:159. [PMID: 38397396 PMCID: PMC10887351 DOI: 10.3390/biom14020159] [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: 12/31/2023] [Revised: 01/24/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
Since the first discovery in 1989, the β3-adrenoceptor (β3-AR) has gained great attention because it showed the ability to regulate many physiologic and metabolic activities, such as thermogenesis and lipolysis in brown and white adipose tissue, respectively (BAT, WAT), negative inotropic effects in cardiomyocytes, and relaxation of the blood vessels and the urinary bladder. The β3-AR has been suggested as a potential target for cancer treatment, both in adult and pediatric tumors, since under hypoxia its upregulation in the tumor microenvironment (TME) regulates stromal cell differentiation, tumor growth and metastases, signifying that its agonism/antagonism could be useful for clinical benefits. Promising results in cancer research have proposed the β3-AR being targeted for the treatment of many conditions, with some drugs, at present, undergoing phase II and III clinical trials. In this review, we report the scientific journey followed by the research from the β3-Ars' discovery, with focus on the β3-Ars' role in cancer initiation and progression that elects it an intriguing target for novel antineoplastic approaches. The overview highlights the great potential of the β3-AR, both in physiologic and pathologic conditions, with the intention to display the possible benefits of β3-AR modulation in cancer reality.
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Affiliation(s)
- Amada Pasha
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, 50139 Florence, Italy
| | - Annalisa Tondo
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
| | - Claudio Favre
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
| | - Maura Calvani
- Department of Pediatric Hematology–Oncology, Meyer Children’s Hospital IRCCS, 50139 Florence, Italy; (A.P.); (A.T.); (C.F.)
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2
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Abstract
The worldwide incidence of melanoma has risen rapidly in the past 50 years and is a considerable public health burden in the United States, with significant financial implications. Studies have demonstrated the potential anticarcinogenic effects of antihypertensive agents, specifically beta-blockers, in patients with prostate cancer, breast cancer, and lately cutaneous malignant melanoma. This article explores the empirical clinical evidence of propranolol's anticarcinogenic effects on melanoma and the chemoprotective mechanisms of beta-blockers and other agents that have been used to modify melanoma progression.
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3
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Dal Monte M, Calvani M, Cammalleri M, Favre C, Filippi L, Bagnoli P. β-Adrenoceptors as drug targets in melanoma: novel preclinical evidence for a role of β 3 -adrenoceptors. Br J Pharmacol 2018; 176:2496-2508. [PMID: 30471093 DOI: 10.1111/bph.14552] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 10/30/2018] [Accepted: 11/13/2018] [Indexed: 02/06/2023] Open
Abstract
Stress plays a role in tumourigenesis through catecholamines acting at β-adrenoceptors including β1 -, β2 - and β3 -adrenoceptors, and the use of β-adrenoceptor antagonists seems to counteract tumour growth and progression. Preclinical evidence and meta-analysis data demonstrate that melanoma shows a positive response to β-adrenoceptor blockers and in particular to propranolol acting mainly at β1 - and β2 -adrenoceptors. Although evidence suggesting that β3 -adrenoceptors may play a role as a therapeutic target in infantile haemangiomas has been recently reviewed, a comprehensive analysis of the data available from preclinical studies supporting a possible role of β3 -adrenoceptors in melanoma was not available. Here, we review data from the literature demonstrating that propranolol may be effective at counteracting melanoma growth, and we provide preclinical evidence that β3 -adrenoceptors may also play a role in the pathophysiology of melanoma, thus opening the door for further clinical assays trying to explore β3 -adrenoceptor blockers as novel alternatives for its treatment. LINKED ARTICLES: This article is part of a themed section on Adrenoceptors-New Roles for Old Players. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.14/issuetoc.
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Affiliation(s)
| | - Maura Calvani
- Onco-hematology Unit, Department of Pediatric Oncology, Meyer University Children's Hospital, Florence, Italy
| | | | - Claudio Favre
- Onco-hematology Unit, Department of Pediatric Oncology, Meyer University Children's Hospital, Florence, Italy
| | - Luca Filippi
- Neonatal Intensive Care Unit, Medical Surgical Fetal-Neonatal Department, Meyer University Children's Hospital, Florence, Italy
| | - Paola Bagnoli
- Department of Biology, University of Pisa, Pisa, Italy
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Nagaraja AS, Dood RL, Armaiz-Pena G, Kang Y, Wu SY, Allen JK, Jennings NB, Mangala LS, Pradeep S, Lyons Y, Haemmerle M, Gharpure KM, Sadaoui NC, Rodriguez-Aguayo C, Ivan C, Wang Y, Baggerly K, Ram P, Lopez-Berestein G, Liu J, Mok SC, Cohen L, Lutgendorf SK, Cole SW, Sood AK. Adrenergic-mediated increases in INHBA drive CAF phenotype and collagens. JCI Insight 2017; 2:93076. [PMID: 28814667 DOI: 10.1172/jci.insight.93076] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 07/06/2017] [Indexed: 12/11/2022] Open
Abstract
Adrenergic signaling is known to promote tumor growth and metastasis, but the effects on tumor stroma are not well understood. An unbiased bioinformatics approach analyzing tumor samples from patients with known biobehavioral profiles identified a prominent stromal signature associated with cancer-associated fibroblasts (CAFs) in those with a high biobehavioral risk profile (high Center for Epidemiologic Studies Depression Scale [CES-D] score and low social support). In several models of epithelial ovarian cancer, daily restraint stress resulted in significantly increased CAF activation and was abrogated by a nonspecific β-blocker. Adrenergic signaling-induced CAFs had significantly higher levels of collagen and extracellular matrix components than control tumors. Using a systems-based approach, we found INHBA production by cancer cells to induce CAFs. Ablating inhibin β A decreased CAF phenotype both in vitro and in vivo. In preclinical models of breast and colon cancers, there were increased CAFs and collagens following daily restraint stress. In an independent data set of renal cell carcinoma patients, there was an association between high depression (CES-D) scores and elevated expression of ACTA2, collagens, and inhibin β A. Collectively, our findings implicate adrenergic influences on tumor stroma as important drivers of CAFs and establish inhibin β A as an important regulator of the CAF phenotype in ovarian cancer.
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Affiliation(s)
| | - Robert L Dood
- Department of Gynecologic Oncology and Reproductive Medicine
| | | | - Yu Kang
- Department of Gynecologic Oncology and Reproductive Medicine
| | - Sherry Y Wu
- Department of Gynecologic Oncology and Reproductive Medicine
| | - Julie K Allen
- Department of Gynecologic Oncology and Reproductive Medicine
| | | | | | - Sunila Pradeep
- Department of Gynecologic Oncology and Reproductive Medicine
| | - Yasmin Lyons
- Department of Gynecologic Oncology and Reproductive Medicine
| | | | | | | | | | | | - Ying Wang
- Department of Bioinformatics and Computational Biology
| | | | | | | | | | - Samuel C Mok
- Department of Gynecologic Oncology and Reproductive Medicine
| | - Lorenzo Cohen
- Department of Palliative, Rehabilitation, and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Susan K Lutgendorf
- Departments of Psychological and Brain Sciences, Obstetrics and Gynecology, and Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa, USA
| | - Steve W Cole
- Department of Medicine and Jonsson Comprehensive Cancer Center, University of California, Los Angeles School of Medicine, UCLA Molecular Biology Institute, and Norman Cousins Center, Los Angeles, California, USA
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine.,Center for RNAi and Non-Coding RNA.,Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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5
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Xiao R, Bergin SM, Huang W, Slater AM, Liu X, Judd RT, Lin EJD, Widstrom KJ, Scoville SD, Yu J, Caligiuri MA, Cao L. Environmental and Genetic Activation of Hypothalamic BDNF Modulates T-cell Immunity to Exert an Anticancer Phenotype. Cancer Immunol Res 2016; 4:488-497. [PMID: 27045020 DOI: 10.1158/2326-6066.cir-15-0297] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/05/2016] [Indexed: 11/16/2022]
Abstract
Macroenvironmental factors, including a patient's physical and social environment, play a role in cancer risk and progression. Our previous studies show that living in an enriched environment (EE) providing complex stimuli confers an anticancer phenotype in mice mediated, in part by a specific neuroendocrine axis, with brain-derived neurotrophic factor (BDNF) as the key brain mediator. Here, we investigated how an EE modulated T-cell immunity and its role in the EE-induced anticancer effects. Our data demonstrated that CD8 T cells were required to mediate the anticancer effects of an EE in an orthotropic model of melanoma. In secondary lymphoid tissue (SLT), an EE induced early changes in the phenotype of T-cell populations, characterized by a decrease in the ratio of CD4 T helper to CD8 cytotoxic T lymphocytes (CTL). Overexpression of hypothalamic BDNF reproduced EE-induced T-cell phenotypes in SLT, whereas knockdown of hypothalamic BDNF inhibited EE-induced immune modulation in SLT. Both propranolol and mifepristone blocked the EE-associated modulation of CTLs in SLT, suggesting that both the sympathetic nervous system and the hypothalamic-pituitary-adrenal axis were involved. Our results demonstrated that enhanced anticancer effect of an EE was mediated at least in part through modulation of T-cell immunity and provided support to the emerging concept of manipulating a single gene in the brain to improve cancer immunotherapy. Cancer Immunol Res; 4(6); 488-97. ©2016 AACR.
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Affiliation(s)
- Run Xiao
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Stephen M Bergin
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Wei Huang
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Andrew M Slater
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Xianglan Liu
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Ryan T Judd
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - En-Ju D Lin
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Kyle J Widstrom
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Steven D Scoville
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Jianhua Yu
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Michael A Caligiuri
- Division of Hematology, Department of Internal Medicine, College of Medicine, The Ohio State University, Columbus, OH 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
| | - Lei Cao
- Department of Molecular Virology, Immunology, and Medical Genetics, The Ohio State University, Columbus, Ohio 43210.,The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210
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6
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Dickerson EB, Bryan BA. Beta Adrenergic Signaling: A Targetable Regulator of Angiosarcoma and Hemangiosarcoma. Vet Sci 2015; 2:270-292. [PMID: 29061946 PMCID: PMC5644640 DOI: 10.3390/vetsci2030270] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Revised: 09/05/2015] [Accepted: 09/08/2015] [Indexed: 01/07/2023] Open
Abstract
Human angiosarcomas and canine hemangiosarcomas are highly aggressive cancers thought to arise from cells of vascular origin. The pathological features, morphological organization, and clinical behavior of canine hemangiosarcomas are virtually indistinct from those of human angiosarcomas. Overall survival with current standard-of-care approaches remains dismal for both humans and dogs, and each is likely to succumb to their disease within a short duration. While angiosarcomas in humans are extremely rare, limiting their study and treatment options, canine hemangiosarcomas occur frequently. Therefore, studies of these sarcomas in dogs can be used to advance treatment approaches for both patient groups. Emerging data suggest that angiosarcomas and hemangiosarcomas utilize beta adrenergic signaling to drive their progression by regulating the tumor cell niche and fine-tuning cellular responses within the tumor microenvironment. These discoveries indicate that inhibition of beta adrenergic signaling could serve as an Achilles heel for these tumors and emphasize the need to design therapeutic strategies that target tumor cell and stromal cell constituents. In this review, we summarize recent discoveries and present new hypotheses regarding the roles of beta adrenergic signaling in angiosarcomas and hemangiosarcomas. Because the use of beta adrenergic receptor antagonists is well established in human and veterinary medicine, beta blockade could provide an immediate adjunct therapy for treatment along with a tangible opportunity to improve upon the outcomes of both humans and dogs with these diseases.
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Affiliation(s)
- Erin B Dickerson
- Department of Veterinary Clinical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, MN 55108, USA.
- Animal Cancer Care and Research Program, University of Minnesota, St. Paul, MN 55108, USA.
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Brad A Bryan
- Department of Biomedical Sciences, Texas Tech University Health Sciences Center, El Paso, TX 79912, USA.
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Role of host β1- and β2-adrenergic receptors in a murine model of B16 melanoma: functional involvement of β3-adrenergic receptors. Naunyn Schmiedebergs Arch Pharmacol 2015; 388:1317-31. [PMID: 26285646 DOI: 10.1007/s00210-015-1165-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 08/03/2015] [Indexed: 01/03/2023]
Abstract
Complex interactions between tumor cells and their surrounding compartment are strongly influenced by the host in which the tumor grows. In melanoma, for instance, stress-associated norephinephrine (NE), acting at β-adrenergic receptors (β-ARs), stimulates melanoma cell proliferation and tumor angiogenesis. Among β-ARs, β3-ARs play a role acting not only at tumor cells but also at non-neoplastic stromal cells within the melanoma. In the present study, we used a murine model of B16 melanoma to evaluate the role of the host β1- and β2-ARs in melanoma growth and we determined whether the role of β3-ARs can be influenced by the absence of stromal β1- and β2-ARs. As compared to wild-type mice, β1/2-AR knockout mice displayed (i) increased intratumoral levels of both NE and β3-ARs, as evidentiated at both messenger and protein levels; (ii) increased tumor vascularization; (iii) decreased tumor cell proliferation but increased tumor cell apoptosis; and (iv) increased responsiveness to intratumoral injection of the β3-AR blocker L-748,337 in terms of decrease in tumor growth, tumor vascular response, tumor cell proliferation, and increase in tumor cell death. These findings together validate the role of β-AR signaling in melanoma microenvironment suggesting that non-neoplastic stromal cells may be targeted by β-AR-related drugs. The additional fact that β3-ARs play an important role in melanoma growth suggests selective β3-AR antagonists as important proapoptotic agents.
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Calvani M, Pelon F, Comito G, Taddei ML, Moretti S, Innocenti S, Nassini R, Gerlini G, Borgognoni L, Bambi F, Giannoni E, Filippi L, Chiarugi P. Norepinephrine promotes tumor microenvironment reactivity through β3-adrenoreceptors during melanoma progression. Oncotarget 2015; 6:4615-32. [PMID: 25474135 PMCID: PMC4467103 DOI: 10.18632/oncotarget.2652] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 10/27/2014] [Indexed: 11/25/2022] Open
Abstract
Stress has an emerging role in cancer and targeting stress-related β-adrenergic receptors (AR) has been proposed as a potential therapeutic approach in melanoma. Here we report that β3-AR expression correlates with melanoma aggressiveness. In addition, we highlight that β3-AR expression is not only restricted to cancer cells, but it is also expressed in vivo in stromal, inflammatory and vascular cells of the melanoma microenvironment. Particularly, we demonstrated that β3-AR can (i) instruct melanoma cells to respond to environmental stimuli, (ii) enhance melanoma cells response to stromal fibroblasts and macrophages, (iii) increase melanoma cell motility and (iv) induce stem-like traits. Noteworthy, β3-AR activation in melanoma accessory cells drives stromal reactivity by inducing pro-inflammatory cytokines secretion and de novo angiogenesis, sustaining tumor growth and melanoma aggressiveness. β3-ARs also play a mandatory role in the recruitment to tumor sites of circulating stromal cells precursors, in the differentiation of these cells towards different lineages, further favoring tumor inflammation, angiogenesis and ultimately melanoma malignancy. Our findings validate selective β3-AR antagonists as potential promising anti-metastatic agents. These could be used to complement current therapeutic approaches for melanoma patients (e.g. propranolol) by targeting non-neoplastic stromal cells, hence reducing therapy resistance of melanoma.
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Affiliation(s)
- Maura Calvani
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Tuscany Tumor Institute and “Center for Research, Transfer and High Education DenoTHE”, Florence 50134, Italy
| | - Floriane Pelon
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Tuscany Tumor Institute and “Center for Research, Transfer and High Education DenoTHE”, Florence 50134, Italy
| | - Giuseppina Comito
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Tuscany Tumor Institute and “Center for Research, Transfer and High Education DenoTHE”, Florence 50134, Italy
| | - Maria Letizia Taddei
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Tuscany Tumor Institute and “Center for Research, Transfer and High Education DenoTHE”, Florence 50134, Italy
| | - Silvia Moretti
- Department of Surgery and Translational Medicine, Dermatology Section University of Florence, Florence, Italy
| | | | - Romina Nassini
- Department of Health Sciences, Clinical Pharmacology and Oncology Unit, University of Florence, Florence, Italy
| | - Gianni Gerlini
- Plastic Surgery Unit, Regional Melanoma Referral Center, Tuscan Tumor Institute, Santa Maria Annunziata Hospital, Florence 50012, Italy
| | - Lorenzo Borgognoni
- Plastic Surgery Unit, Regional Melanoma Referral Center, Tuscan Tumor Institute, Santa Maria Annunziata Hospital, Florence 50012, Italy
| | - Franco Bambi
- Transfusion Medicine and Cell Therapy “A. Meyer” University Children's Hospital, Florence, Italy
| | - Elisa Giannoni
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Tuscany Tumor Institute and “Center for Research, Transfer and High Education DenoTHE”, Florence 50134, Italy
| | - Luca Filippi
- Neonatal Intensive Care Unit, Medical Surgical Fetal-Neonatal Department, “A. Meyer” University Children's Hospital, Florence, Italy
| | - Paola Chiarugi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Tuscany Tumor Institute and “Center for Research, Transfer and High Education DenoTHE”, Florence 50134, Italy
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Quercetin and quercetin-3-O-glucoside interact with different components of the cAMP signaling cascade in human retinal pigment epithelial cells. Life Sci 2014; 121:166-73. [PMID: 25476834 DOI: 10.1016/j.lfs.2014.11.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/28/2014] [Accepted: 11/13/2014] [Indexed: 01/06/2023]
Abstract
AIMS The ability of the plant flavonol quercetin and its conjugated form quercetin-3-glucoside, compared to that of the anthocyanin cyanidin-3-glucoside, to interfere with 3',5'-cyclic adenosine monophosphate (cAMP) efflux was investigated in cultured human retinal pigment epithelial (HRPE) cells. MAIN METHODS HRPE cells were stimulated for a time course with 1 μM adrenaline, in the presence and absence of increasing concentrations of anthocyanins or flavonols, then intracellular and extracellular cAMP levels obtained from whole cells and cAMP synthetized by the activity of adenylate cyclase in cell membrane fractions were determined by radiochemical assay. KEY FINDINGS The treatment with either compound caused a significant lowering in extracellular cAMP concentrations deriving from a time course cell stimulation with 1 μM epinephrine. As to quercetin, the effect was shown to rely on the inhibition of cAMP efflux transporters. In the case of the glycoside, it was found to depend on the contrary on a reduction in the extent of epinephrine stimulation. Consistently, quercetin-3-glucoside inhibited the epinephrine-stimulated activity of adenylyl cyclase in membrane preparations, while quercetin was ineffective. The anthocyanin cyanidin-3-glucoside exerted similar effects as quercetin-3-glucoside. SIGNIFICANCE Results strengthen the diverse effect of the glucosides versus the corresponding aglycones. Since differently from flavonols, anthocyanins are present in human plasma in their glycosylated form, the aglycone or glycoside forms of these plant secondary metabolites might therefore be utilized as synergistic regulators of cAMP homeostasis for therapeutical purposes.
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β3-adrenergic receptor activity modulates melanoma cell proliferation and survival through nitric oxide signaling. Naunyn Schmiedebergs Arch Pharmacol 2014; 387:533-43. [PMID: 24599317 DOI: 10.1007/s00210-014-0969-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 02/21/2014] [Indexed: 01/07/2023]
Abstract
We have recently shown in B16F10 melanoma cells that blockade of β3-adrenergic receptors (β3-ARs) reduces cell proliferation and induces apoptosis, likely through the involvement of nitric oxide (NO) signaling. Here, we tested the hypothesis that the effects of β3-AR blockade on melanoma cells are mainly mediated by a decrease in the activity of the NO pathway, possibly due to reduced expression of inducible NO synthase (iNOS). B16F10 cells were used. Nitrite production, iNOS expression, cell proliferation, and apoptosis were evaluated. β3-AR blockade with L-748,337 reduced basal nitrite production, while β3-AR stimulation with BRL37344 increased it. The effects of β3-AR blockade were prevented by NOS activation, while the effects of β3-AR activation were prevented by NOS inhibition. Treatments increasing nitrite production also increased iNOS expression, while treatments decreasing nitrite production reduced iNOS expression. Among the different NOS isoforms, experiments using L-748,337 or BRL37344 with activators or inhibitors targeting specific NOS isoforms demonstrated a prominent role of iNOS in nitrite production. β3-AR blockade decreased cell proliferation and induced apoptosis, while β3-AR activation had the opposite effects. The effects of β3-AR blockade/activation were prevented by iNOS activation/inhibition, respectively. Taken together, these results demonstrate that iNOS-produced NO is a downstream effector of β3-ARs and that the beneficial effects of β3-AR blockade on melanoma B16F10 cell proliferation and apoptosis are functionally linked to reduced iNOS expression and NO production. Although it is difficult to extrapolate these data to the clinical setting, the targeted inhibition of the β3-AR-NO axis may offer a new therapeutic perspective to treat melanomas.
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Livingstone E, Hollestein LM, van Herk-Sukel MPP, van de Poll-Franse L, Nijsten T, Schadendorf D, de Vries E. β-Blocker use and all-cause mortality of melanoma patients: results from a population-based Dutch cohort study. Eur J Cancer 2013; 49:3863-71. [PMID: 23942335 DOI: 10.1016/j.ejca.2013.07.141] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 11/30/2022]
Abstract
BACKGROUND Results from preclinical and observational studies suggest that β-adrenoreceptor inhibition might influence disease progression of melanoma. PATIENTS AND METHODS Patients ⩾18years with cutaneous melanoma (Breslow thickness >1mm) registered in the Eindhoven Cancer Registry between January 1, 1998 and December 31, 2010, who were also registered with PHARMO record linkage system (RLS), were eligible. Randomly selected patients using β-blockers from PHARMO record linkage system (RLS) matched on age and gender served as a control cohort. Adjusted time-dependent and time-fixed Cox proportional hazard models were employed to estimate the hazard ratio of all-cause mortality. Five-year relative survival rates for all-cause mortality were calculated to estimate disease specific survival. RESULTS 203 of 709 eligible patients used β-blockers after melanoma diagnosis. The use of β-blockers was not associated with the risk of dying (adjusted hazard ratio (HR) 0.82, 95% confidence interval (CI) 0.55-1.24). Neither duration of exposure nor β-blocker dosage showed significant influence on survival. Five-year relative survival for β-blocker users was lower than in non-users amongst melanoma patients (80.9% and 83.7%, respectively) but higher among the β-blocker control group compared to the general population (101.4%). CONCLUSION Our results do not show a statistically significant impact of β-blocker exposure on overall survival of melanoma patients, regardless of the timing, duration or dosage of β-blocker use.
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Affiliation(s)
- E Livingstone
- Department of Dermatology, University Hospital Duisburg-Essen, Essen, Germany
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