1
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Spectroscopic characterization and in vitro studies of biological activity of bradykinin derivatives. Sci Rep 2022; 12:19015. [PMID: 36348016 PMCID: PMC9643506 DOI: 10.1038/s41598-022-23448-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 10/31/2022] [Indexed: 11/10/2022] Open
Abstract
Eleven multiple analogs of bradykinin-a peptide that is a natural ligand of B1 and B2 receptors but does not bind or activate the B1 receptor unless Arg9 is removed from the sequence by the action of carboxypeptidase N-were synthesized. Their biological activity was examined on T-REx cell lines expressing B1 or B2 receptors using the intracellular IP1 assay. The mRNA expression of B1R and B2R in the lysate of tumor cell lines, e.g., U87-MG (human astrocytoma), SHP-77 (human small cell lung cancer), and H4 (human brain glioma), was determined. For five B1R antagonists, adsorption at the liquid/solid interface (Au nanoparticles (AuNPs) served as the solid surface) was discussed in terms of the vibrations of molecular fragments (structural factors) responsible for the biological properties of these analogs.
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2
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Lau J, Rousseau J, Kwon D, Bénard F, Lin KS. A Systematic Review of Molecular Imaging Agents Targeting Bradykinin B1 and B2 Receptors. Pharmaceuticals (Basel) 2020; 13:ph13080199. [PMID: 32824565 PMCID: PMC7464927 DOI: 10.3390/ph13080199] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 12/22/2022] Open
Abstract
Kinins, bradykinin and kallidin are vasoactive peptides that signal through the bradykinin B1 and B2 receptors (B1R and B2R). B2R is constitutively expressed in healthy tissues and mediates responses such as vasodilation, fluid balance and retention, smooth muscle contraction, and algesia, while B1R is absent in normal tissues and is induced by tissue trauma or inflammation. B2R is activated by kinins, while B1R is activated by kinins that lack the C-terminal arginine residue. Perturbations of the kinin system have been implicated in inflammation, chronic pain, vasculopathy, neuropathy, obesity, diabetes, and cancer. In general, excess activation and signaling of the kinin system lead to a pro-inflammatory state. Depending on the disease context, agonism or antagonism of the bradykinin receptors have been considered as therapeutic options. In this review, we summarize molecular imaging agents targeting these G protein-coupled receptors, including optical and radioactive probes that have been used to interrogate B1R/B2R expression at the cellular and anatomical levels, respectively. Several of these preclinical agents, described herein, have the potential to guide therapeutic interventions for these receptors.
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Affiliation(s)
- Joseph Lau
- Department of Molecular Oncology, BC Cancer, Vancouver, BC V5Z 1L3 Canada
| | - Julie Rousseau
- Department of Molecular Oncology, BC Cancer, Vancouver, BC V5Z 1L3 Canada
| | - Daniel Kwon
- Department of Molecular Oncology, BC Cancer, Vancouver, BC V5Z 1L3 Canada
| | - François Bénard
- Department of Molecular Oncology, BC Cancer, Vancouver, BC V5Z 1L3 Canada
- Department of Radiology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Kuo-Shyan Lin
- Department of Molecular Oncology, BC Cancer, Vancouver, BC V5Z 1L3 Canada
- Department of Radiology, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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3
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Vanarsa K, Henderson J, Soomro S, Qin L, Zhang T, Jordan N, Putterman C, Blanco I, Saxena R, Mohan C. Upregulation of Proinflammatory Bradykinin Peptides in Systemic Lupus Erythematosus and Rheumatoid Arthritis. THE JOURNAL OF IMMUNOLOGY 2020; 205:369-376. [PMID: 32540998 DOI: 10.4049/jimmunol.1801167] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 05/18/2020] [Indexed: 01/01/2023]
Abstract
Our recent study has implicated bradykinin (BK) signaling as being of pathogenic importance in lupus. This study aims to investigate the biomarker potential of BK peptides, BK and BK-des-arg-9, in lupus and other rheumatic autoimmune diseases. Sera from systemic lupus erythematosus (SLE) patients and healthy subjects were screened for BK and BK-des-arg-9 by liquid chromatography-mass spectrometry metabolomics. Serum from 6-mo-old C57BL/6 mice and three murine lupus strains were also screened for the two peptides by metabolomics. Given the promising initial screening results, validation of these two peptides was next conducted using multiple reaction monitoring in larger patient cohorts. In initial metabolomics screening, BK-des-arg-9 was 22-fold higher in SLE serum and 106-fold higher in mouse lupus serum compared with healthy controls. In validation assays using multiple reaction monitoring and quadrupole time-of-flight mass spectrometry, BK and BK-des-arg-9 showed significant elevations in SLE serum compared with controls (p < 0.0001; area under the curve = 0.79-0.88), with a similar but less pronounced increase being noted in rheumatoid arthritis serum. Interestingly, increased renal SLE disease activity index in lupus patients was associated with reduced circulating BK-des-arg-9, and the reasons for this remain to be explored. To sum, increased conversion of BK to the proinflammatory metabolite BK-des-arg-9 appears to be a common theme in systemic rheumatic diseases. Besides serving as an early marker for systemic autoimmunity, independent studies also show that this metabolic axis may also be a pathogenic driver and therapeutic target in lupus.
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Affiliation(s)
- Kamala Vanarsa
- Biomedical Engineering, University of Houston, Houston, TX 77204
| | - Jared Henderson
- Biomedical Engineering, University of Houston, Houston, TX 77204
| | - Sanam Soomro
- Biomedical Engineering, University of Houston, Houston, TX 77204
| | - Ling Qin
- Tongji University School of Medicine, Shanghai Tenth People's Hospital, Shanghai 200072, People's Republic of China
| | - Ting Zhang
- Biomedical Engineering, University of Houston, Houston, TX 77204
| | - Nicole Jordan
- Division of Rheumatology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Chaim Putterman
- Division of Rheumatology, Albert Einstein College of Medicine, Bronx, NY 10461.,Azrieli Faculty of Medicine, Bar-Ilan University, Zefat, Israel 52000.,Research Institute, Galilee Medical Center, Nahariya, Israel 22100; and
| | - Irene Blanco
- Division of Rheumatology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Ramesh Saxena
- Nephrology Clinical and Translational Research, University of Texas Southwestern Medical Center, Dallas, TX 75390
| | - Chandra Mohan
- Biomedical Engineering, University of Houston, Houston, TX 77204;
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4
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Becker AK, Auditore A, Pischetsrieder M, Messlinger K, Fleming T, Reeh PW, Sauer SK. Reactive dicarbonyl compounds cause Calcitonin Gene-Related Peptide release and synergize with inflammatory conditions in mouse skin and peritoneum. J Biol Chem 2020; 295:6330-6343. [PMID: 32198181 DOI: 10.1074/jbc.ra120.012890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/18/2020] [Indexed: 02/02/2023] Open
Abstract
The plasmas of diabetic or uremic patients and of those receiving peritoneal dialysis treatment have increased levels of the glucose-derived dicarbonyl metabolites like methylglyoxal (MGO), glyoxal (GO), and 3-deoxyglucosone (3-DG). The elevated dicarbonyl levels can contribute to the development of painful neuropathies. Here, we used stimulated immunoreactive Calcitonin Gene-Related Peptide (iCGRP) release as a measure of nociceptor activation, and we found that each dicarbonyl metabolite induces a concentration-, TRPA1-, and Ca2+-dependent iCGRP release. MGO, GO, and 3-DG were about equally potent in the millimolar range. We hypothesized that another dicarbonyl, 3,4-dideoxyglucosone-3-ene (3,4-DGE), which is present in peritoneal dialysis (PD) solutions after heat sterilization, activates nociceptors. We also showed that at body temperatures 3,4-DGE is formed from 3-DG and that concentrations of 3,4-DGE in the micromolar range effectively induced iCGRP release from isolated murine skin. In a novel preparation of the isolated parietal peritoneum PD fluid or 3,4-DGE alone, at concentrations found in PD solutions, stimulated iCGRP release. We also tested whether inflammatory tissue conditions synergize with dicarbonyls to induce iCGRP release from isolated skin. Application of MGO together with bradykinin or prostaglandin E2 resulted in an overadditive effect on iCGRP release, whereas MGO applied at a pH of 5.2 resulted in reduced release, probably due to an MGO-mediated inhibition of transient receptor potential (TRP) V1 receptors. These results indicate that several reactive dicarbonyls activate nociceptors and potentiate inflammatory mediators. Our findings underline the roles of dicarbonyls and TRPA1 receptors in causing pain during diabetes or renal disease.
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Affiliation(s)
- Anna K Becker
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstrasse 17, 91054 Erlangen, Germany
| | - Andrea Auditore
- Department of Chemistry and Pharmacy, Food Chemistry, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, 91058 Erlangen, Germany
| | - Monika Pischetsrieder
- Department of Chemistry and Pharmacy, Food Chemistry, Friedrich-Alexander-University Erlangen-Nürnberg, Nikolaus-Fiebiger-Strasse 10, 91058 Erlangen, Germany
| | - Karl Messlinger
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstrasse 17, 91054 Erlangen, Germany
| | - Thomas Fleming
- Department of Medicine I and Clinical Chemistry and Pharmacology, University of Heidelberg, INF 410, 69120 Heidelberg, Germany.,German Center for Diabetes Research (DZD), Eberhard-Karls-University of Tuebingen, Otfried-Müller-Strasse 10, 72076 Tuebingen, Germany
| | - Peter W Reeh
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstrasse 17, 91054 Erlangen, Germany
| | - Susanne K Sauer
- Institute of Physiology and Pathophysiology, Friedrich-Alexander-University Erlangen-Nürnberg, Universitätsstrasse 17, 91054 Erlangen, Germany
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5
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Amouroux G, Zhang Z, Pan J, Jenni S, Zhang C, Hundal-Jabal N, Colpo N, Zeisler J, Lin KS, Bénard F. Synthesis and evaluation of a 68Ga-labeled bradykinin B1 receptor agonist for imaging with positron emission tomography. Bioorg Med Chem 2017; 25:690-696. [PMID: 27908753 DOI: 10.1016/j.bmc.2016.11.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 12/31/2022]
Abstract
A novel 68Ga-labeled bradykinin B1 receptor (B1R) agonist, 68Ga-Z01115, was synthesized and evaluated for imaging with positron emission tomography (PET). Z01115 exhibited good binding affinity (Ki=25.4±5.1nM) to hB1R. 68Ga-Z01115 was prepared in 74±5 decay-corrected radiochemical yield with >99% radiochemical purity and 155±89GBq/µmol (4.2±2.4Ci/μmol) specific activity. 68Ga-Z01115 was stable in vitro in mouse plasma (93% remaining intact after 60min incubation), and relatively stable in vivo (51±5% remaining intact at 5min post-injection). PET imaging and biodistribution studies in mice showed that 68Ga-Z01115 cleared rapidly from nontarget tissues/organs, and generated high target-to-nontarget contrast images. The uptake of 68Ga-Z01115 in B1R-positive (B1R+) tumor was 5.65±0.59%ID/g at 1h post-injection. Average contrast ratios of B1R+ tumor-to-B1R- tumor, -to-blood and -to-muscle were 24.3, 24.4 and 82.9, respectively. Uptake of 68Ga-Z01115 in B1R+ tumors was reduced by ∼90% with co-injection of cold standard, confirming it was mediated by B1R. Our data suggest that 68Ga-Z01115 is a promising tracer for imaging the expression of B1R that is overexpressed in a variety of cancers.
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Affiliation(s)
- Guillaume Amouroux
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Zhengxing Zhang
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Jinhe Pan
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Silvia Jenni
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Chengcheng Zhang
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Navjit Hundal-Jabal
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Nadine Colpo
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Jutta Zeisler
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Kuo-Shyan Lin
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada; Department of Radiology, University of British Columbia, 3350-950 West 10th Avenue, Vancouver, British Columbia V5Z 4E3, Canada.
| | - François Bénard
- Department of Molecular Oncology, BC Cancer Agency, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada; Department of Radiology, University of British Columbia, 3350-950 West 10th Avenue, Vancouver, British Columbia V5Z 4E3, Canada.
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6
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Abstract
Painful neuropathy, like the other complications of diabetes, is a growing healthcare concern. Unfortunately, current treatments are of variable efficacy and do not target underlying pathogenic mechanisms, in part because these mechanisms are not well defined. Rat and mouse models of type 1 diabetes are frequently used to study diabetic neuropathy, with rats in particular being consistently reported to show allodynia and hyperalgesia. Models of type 2 diabetes are being used with increasing frequency, but the current literature on the progression of indices of neuropathic pain is variable and relatively few therapeutics have yet been developed in these models. While evidence for spontaneous pain in rodent models is sparse, measures of evoked mechanical, thermal and chemical pain can provide insight into the pathogenesis of the condition. The stocking and glove distribution of pain tantalizingly suggests that the generator site of neuropathic pain is found within the peripheral nervous system. However, emerging evidence demonstrates that amplification in the spinal cord, via spinal disinhibition and neuroinflammation, and also in the brain, via enhanced thalamic activity or decreased cortical inhibition, likely contribute to the pathogenesis of painful diabetic neuropathy. Several potential therapeutic strategies have emerged from preclinical studies, including prophylactic treatments that intervene against underlying mechanisms of disease, treatments that prevent gains of nociceptive function, treatments that suppress enhancements of nociceptive function, and treatments that impede normal nociceptive mechanisms. Ongoing challenges include unraveling the complexity of underlying pathogenic mechanisms, addressing the potential disconnect between the perceived location of pain and the actual pain generator and amplifier sites, and finding ways to identify which mechanisms operate in specific patients to allow rational and individualized choice of targeted therapies.
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Affiliation(s)
- Corinne A Lee-Kubli
- Graduate School of Biomedical Sciences, Sanford-Burnham Institute for Molecular Medicine, La Jolla, CA, USA; Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Nigel A Calcutt
- Department of Pathology, University of California San Diego, La Jolla, CA, USA.
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7
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Sang H, Liu L, Wang L, Qiu Z, Li M, Yu L, Zhang H, Shi R, Yu S, Guo R, Ye R, Liu X, Zhang R. Opposite roles of bradykinin B1 and B2 receptors during cerebral ischaemia-reperfusion injury in experimental diabetic rats. Eur J Neurosci 2016; 43:53-65. [PMID: 26565562 DOI: 10.1111/ejn.13133] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 10/29/2015] [Accepted: 11/06/2015] [Indexed: 02/05/2023]
Affiliation(s)
- Hongfei Sang
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Ling Liu
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Liumin Wang
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Zhongming Qiu
- Department of Neurology; The 117th Hospital of PLA; Xihu District Hangzhou Zhejiang Province China
| | - Min Li
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Linjie Yu
- Nanjing University School of Medicine; Nanjing China
| | - Hao Zhang
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Ruifeng Shi
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Shuhong Yu
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Ruibing Guo
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Ruidong Ye
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Xinfeng Liu
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
| | - Renliang Zhang
- Department of Neurology; Jinling Hospital; Medical School of Nanjing University; 305 East Zhongshan Road Nanjing 210002 Jiangsu Province China
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8
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Liu Y, Liu J, Li M, Dai S, Liang J, Ji W. The effect of kinin B1 receptor on chronic itching sensitization. Mol Pain 2015; 11:70. [PMID: 26576537 PMCID: PMC4650839 DOI: 10.1186/s12990-015-0070-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 10/13/2015] [Indexed: 01/15/2023] Open
Abstract
Background Altered kallikrein-related peptidase activity and bradykinin are associated with skin disorders in humans and mice under chronic inflammation conditions. The bradykinin B1 receptor (B1R), also known as one of the G-protein-coupled receptor family and usually absent in intact tissues and upregulated during tissue injury, is responsible for vasodilation, capillary permeability, nociceptor sensitization, and pain; it is indispensable for physiopathological progress in chronic inflammation conditions, but its roles and effectors in the itching sensation of the allergic contact dermatitis model are poorly defined. Results We focused on incurable itching in a diphenylcyclopropenone (DCP) chronic inflammation experimental model. Preventive treatment with the B1R antagonist R892 significantly suppressed spontaneous scratching, while the B2R selective antagonist did not. B1R expression in the skin tissues of this model was detected using a quantitative, real-time polymerase chain reaction, Western blotting, and immunohistochemistry; B1R mRNA and protein levels were increased compared with a sham-treated control group. A higher B1R IHC staining signal was observed in the keratinocytes in DCP-treated mice compared with a vehicle-treated group, so we studied the B1R function when superimposed on a protease-activated receptor 2 (PAR2) background, establishing B1R as a pivotal mediator of PAR2 function in HaCaT cell lines. Conclusion Our data provide evidence that B1R facilitates the chronic itching sensation related to keratinocytes in a DCP-treated chronic inflammation experimental model.
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Affiliation(s)
- Yuying Liu
- Postgraduate Institute, Southern Medical University, Guangzhou, 510015, People's Republic of China. .,Department of Anesthesiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 DongChuan Road, Guangzhou, 510080, People's Republic of China.
| | - Jianhua Liu
- Postgraduate Institute, Southern Medical University, Guangzhou, 510015, People's Republic of China. .,Department of Anesthesiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 DongChuan Road, Guangzhou, 510080, People's Republic of China.
| | - Mengran Li
- Postgraduate Institute, Southern Medical University, Guangzhou, 510015, People's Republic of China. .,Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 DongChun Road, Guangzhou, 510080, People's Republic of China.
| | - Sailin Dai
- Postgraduate Institute, Southern Medical University, Guangzhou, 510015, People's Republic of China. .,Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 DongChun Road, Guangzhou, 510080, People's Republic of China.
| | - Jiexian Liang
- Department of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 DongChun Road, Guangzhou, 510080, People's Republic of China.
| | - Wenjin Ji
- Department of Anesthesiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 DongChuan Road, Guangzhou, 510080, People's Republic of China.
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9
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Amouroux G, Pan J, Jenni S, Zhang C, Zhang Z, Hundal-Jabal N, Colpo N, Liu Z, Bénard F, Lin KS. Imaging Bradykinin B1 Receptor with 68Ga-Labeled [des-Arg10]Kallidin Derivatives: Effect of the Linker on Biodistribution and Tumor Uptake. Mol Pharm 2015; 12:2879-88. [DOI: 10.1021/acs.molpharmaceut.5b00070] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Guillaume Amouroux
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Jinhe Pan
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Silvia Jenni
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Chengcheng Zhang
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Zhengxing Zhang
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Navjit Hundal-Jabal
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Nadine Colpo
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Zhibo Liu
- Chemistry
Department, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - François Bénard
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
- Department
of Radiology, University of British Columbia, Vancouver, BC V5Z 4E3, Canada
| | - Kuo-Shyan Lin
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
- Department
of Radiology, University of British Columbia, Vancouver, BC V5Z 4E3, Canada
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10
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Kawaguchi A, Sato M, Kimura M, Yamazaki T, Yamamoto H, Tazaki M, Ichinohe T, Shibukawa Y. Functional expression of bradykinin B1 and B2 receptors in neonatal rat trigeminal ganglion neurons. Front Cell Neurosci 2015; 9:229. [PMID: 26124706 PMCID: PMC4466439 DOI: 10.3389/fncel.2015.00229] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 06/01/2015] [Indexed: 01/03/2023] Open
Abstract
Bradykinin (BK) and its receptors (B1 and B2 receptors) play important roles in inflammatory nociception. However, the patterns of expression and physiological/pathological functions of B1 and B2 receptors in trigeminal ganglion (TG) neurons remain to be fully elucidated. We investigated the functional expression of BK receptors in rat TG neurons. We observed intense immunoreactivity of B2 receptors in TG neurons, while B1 receptors showed weak immunoreactivity. Expression of the B2 receptor colocalized with immunoreactivities against the pan-neuronal marker, neurofilament H, substance P, isolectin B4, and tropomyosin receptor kinase A antibodies. Both in the presence and absence of extracellular Ca2+ ([Ca2+]o), BK application increased the concentration of intracellular free Ca2+ ([Ca2+]i). The amplitudes of BK-induced [Ca2+]i increase in the absence of [Ca2+]o were significantly smaller than those in the presence of Ca2+. In the absence of [Ca2+]o, BK-induced [Ca2+]i increases were sensitive to B2 receptor antagonists, but not to a B1 receptor antagonist. However, B1 receptor agonist, Lys-[Des-Arg9]BK, transiently increased [Ca2+]i in primary cultured TG neurons, and these increases were sensitive to a B1 receptor antagonist in the presence of [Ca2+]o. These results indicated that B2 receptors were constitutively expressed and their activation induced the mobilization of [Ca2+]i from intracellular stores with partial Ca2+ influx by BK. Although constitutive B1 receptor expression could not be clearly observed immunohistochemically in the TG cryosection, cultured TG neurons functionally expressed B1 receptors, suggesting that both B1 and B2 receptors involve pathological and physiological nociceptive functions.
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Affiliation(s)
- Aya Kawaguchi
- Department of Dental Anesthesiology, Tokyo Dental College Tokyo, Japan
| | - Masaki Sato
- Department of Physiology, Tokyo Dental College Tokyo, Japan
| | - Maki Kimura
- Department of Physiology, Tokyo Dental College Tokyo, Japan
| | - Takaki Yamazaki
- Department of Histology and Developmental Biology, Tokyo Dental College Tokyo, Japan
| | - Hitoshi Yamamoto
- Department of Histology and Developmental Biology, Tokyo Dental College Tokyo, Japan
| | | | - Tatsuya Ichinohe
- Department of Dental Anesthesiology, Tokyo Dental College Tokyo, Japan
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11
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Lin KS, Amouroux G, Pan J, Zhang Z, Jenni S, Lau J, Liu Z, Hundal-Jabal N, Colpo N, Bénard F. Comparative Studies of Three 68Ga-Labeled [Des-Arg10]Kallidin Derivatives for Imaging Bradykinin B1 Receptor Expression with PET. J Nucl Med 2015; 56:622-7. [DOI: 10.2967/jnumed.114.152132] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 02/02/2015] [Indexed: 12/31/2022] Open
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12
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Liu Z, Amouroux G, Zhang Z, Pan J, Hundal-Jabal N, Colpo N, Lau J, Perrin DM, Bénard F, Lin KS. 18F-Trifluoroborate Derivatives of [Des-Arg10]Kallidin for Imaging Bradykinin B1 Receptor Expression with Positron Emission Tomography. Mol Pharm 2015; 12:974-82. [DOI: 10.1021/acs.molpharmaceut.5b00003] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zhibo Liu
- Chemistry
Department, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Guillaume Amouroux
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Zhengxing Zhang
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Jinhe Pan
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Navjit Hundal-Jabal
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Nadine Colpo
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - Joseph Lau
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
| | - David M. Perrin
- Chemistry
Department, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - François Bénard
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
- Department
of Radiology, University of British Columbia, Vancouver, BC V5Z 4E3, Canada
| | - Kuo-Shyan Lin
- Department
of Molecular Oncology, BC Cancer Agency, Vancouver, BC V5Z 1L3, Canada
- Department
of Radiology, University of British Columbia, Vancouver, BC V5Z 4E3, Canada
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Wang D, Couture R, Hong Y. Activated microglia in the spinal cord underlies diabetic neuropathic pain. Eur J Pharmacol 2014; 728:59-66. [PMID: 24508519 DOI: 10.1016/j.ejphar.2014.01.057] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 01/23/2014] [Accepted: 01/29/2014] [Indexed: 12/22/2022]
Abstract
Diabetes mellitus is an increasingly common chronic medical condition. Approximately 30% of diabetic patients develop neuropathic pain, manifested as spontaneous pain, hyperalgesia and allodynia. Hyperglycemia induces metabolic changes in peripheral tissues and enhances oxidative stress in nerve fibers. The damages and subsequent reactive inflammation affect structural properties of Schwann cells and axons leading to the release of neuropoietic mediators, such as pro-inflammatory cytokines and pro-nociceptive mediators. Therefore, diabetic neuropathic pain (DNP) shares some histological features and underlying mechanisms with traumatic neuropathy. DNP displays, however, other distinct features; for instance, sensory input to the spinal cord decreases rather than increasing in diabetic patients. Consequently, development of central sensitization in DNP involves mechanisms that are distinct from traumatic neuropathic pain. In DNP, the contribution of spinal cord microglia activation to central sensitization and pain processes is emerging as a new concept. Besides inflammation in the periphery, hyperglycemia and the resulting production of reactive oxygen species affect the local microenvironment in the spinal cord. All these alterations could trigger resting and sessile microglia to the activated phenotype. In turn, microglia synthesize and release pro-inflammatory cytokines and neuroactive molecules capable of inducing hyperactivity of spinal nociceptive neurons. Hence, it is imperative to elucidate glial mechanisms underlying DNP for the development of effective therapeutic agents. The present review highlights the recent developments regarding the contribution of spinal microglia as compelling target for the treatment of DNP.
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Affiliation(s)
- Dongmei Wang
- College of Life Sciences and Provincial Key Laboratory of Developmental Biology and Neuroscience, Fujian Normal University, New campus, Fuzhou, Fujian 350108, People׳s Republic of China
| | - Réjean Couture
- Department of Physiology, Faculty of Medicine, Université de Montréal, C.P. 6128, Succursale Downtown, Montréal, Québec, Canada H3C 3J7
| | - Yanguo Hong
- College of Life Sciences and Provincial Key Laboratory of Developmental Biology and Neuroscience, Fujian Normal University, New campus, Fuzhou, Fujian 350108, People׳s Republic of China.
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Dutra RC, Bento AF, Leite DF, Manjavachi MN, Marcon R, Bicca MA, Pesquero JB, Calixto JB. The role of kinin B1 and B2 receptors in the persistent pain induced by experimental autoimmune encephalomyelitis (EAE) in mice: Evidence for the involvement of astrocytes. Neurobiol Dis 2013; 54:82-93. [DOI: 10.1016/j.nbd.2013.02.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 01/16/2013] [Accepted: 02/19/2013] [Indexed: 12/24/2022] Open
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Lacoste B, Tong XK, Lahjouji K, Couture R, Hamel E. Cognitive and cerebrovascular improvements following kinin B1 receptor blockade in Alzheimer's disease mice. J Neuroinflammation 2013; 10:57. [PMID: 23642031 PMCID: PMC3710240 DOI: 10.1186/1742-2094-10-57] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 04/20/2013] [Indexed: 12/11/2022] Open
Abstract
Background Recent evidence suggests that the inducible kinin B1 receptor (B1R) contributes to pathogenic neuroinflammation induced by amyloid-beta (Aβ) peptide. The present study aims at identifying the cellular distribution and potentially detrimental role of B1R on cognitive and cerebrovascular functions in a mouse model of Alzheimer’s disease (AD). Methods Transgenic mice overexpressing a mutated form of the human amyloid precursor protein (APPSwe,Ind, line J20) were treated with a selective and brain penetrant B1R antagonist (SSR240612, 10 mg/kg/day for 5 or 10 weeks) or vehicle. The impact of B1R blockade was measured on i) spatial learning and memory performance in the Morris water maze, ii) cerebral blood flow (CBF) responses to sensory stimulation using laser Doppler flowmetry, and iii) reactivity of isolated cerebral arteries using online videomicroscopy. Aβ burden was quantified by ELISA and immunostaining, while other AD landmarks were measured by western blot and immunohistochemistry. Results B1R protein levels were increased in APP mouse hippocampus and, prominently, in reactive astrocytes surrounding Aβ plaques. In APP mice, B1R antagonism with SSR240612 improved spatial learning, memory and normalized protein levels of the memory-related early gene Egr-1 in the dentate gyrus of the hippocampus. B1R antagonism restored sensory-evoked CBF responses, endothelium-dependent dilations, and normalized cerebrovascular protein levels of endothelial nitric oxide synthase and B2R. In addition, SSR240612 reduced (approximately 50%) microglial, but not astroglial, activation, brain levels of soluble Aβ1-42, diffuse and dense-core Aβ plaques, and it increased protein levels of the Aβ brain efflux transporter lipoprotein receptor-related protein-1 in cerebral microvessels. Conclusion These findings show a selective upregulation of astroglial B1R in the APP mouse brain, and the capacity of the B1R antagonist to abrogate amyloidosis, cerebrovascular and memory deficits. Collectively, these findings provide convincing evidence for a role of B1R in AD pathogenesis.
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Affiliation(s)
- Baptiste Lacoste
- Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, QC H3A 2B4, Canada
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16
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Brain kinin B₁ receptor contributes to the onset of stereotypic nocifensive behavior in rat. Behav Brain Res 2012; 241:17-26. [PMID: 23219968 DOI: 10.1016/j.bbr.2012.11.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 11/19/2012] [Accepted: 11/23/2012] [Indexed: 12/26/2022]
Abstract
While brain kinin B(1) receptor (B(1)R) is virtually absent in control rats, it contributes to hypertension via a midbrain dopaminergic (DA) mechanism in spontaneously hypertensive rat (SHR) and Angiotensin II (Ang II)-induced hypertension. This study aims at determining whether B(1)R can also affect stereotypic nocifensive behavior through DA and/or other neuromediators in the same models. The selective B(1)R agonist Sar[D-Phe(8)][des-Arg(9)]BK was injected i.c.v. (1 μg/site) to freely behaving SHR (16 weeks), Ang II-hypertensive rats (200 ng/kg/min × 2 weeks, s.c.) and control Wistar-Kyoto rats (WKY). Behavioral activity to the agonist was measured before and after treatment with receptor antagonists (10 μg/site i.c.v. or otherwise stated) for B(1) (SSR240612), tachykinin NK(1) (RP67580), glutamate NMDA (DL-AP5), DA D(1) (SCH23390, 0.2mg/kg s.c.) and D(2) (Raclopride, 0.16 mg/kg s.c.). Other studies included inhibitors (10 μg/site) of NOS (l-NNA) and iNOS (1400W). The possible desensitisation of B(1)R upon repeated intracerebral stimulation was also excluded. B(1)R expression was measured by qRT-PCR in selected areas and by immunohistochemistry in the ventral tegmental area. Results showed that the B(1)R agonist had no effect in WKY, yet it induced nocifensive behavioral manifestations in both models of hypertension (face washing, sniffing, head scratching, rearing, teeth chattering, grooming, digging, licking, wet-dog shakes). These responses were prevented by all antagonists and inhibitors tested, but 1400 W had a less inhibitory effect on most behaviors. Compared with WKY, B(1)R mRNA levels were markedly enhanced in hypothalamus, ventral tegmental area and nucleus accumbens of SHR and Ang II-treated rats. B(1)R was detected on DA neuron of the ventral tegmental area in SHR. Data suggest that kinin B(1)R is upregulated in midbrain DA system in hypertensive rats and its i.c.v. activation induced stereotypic nocifensive behavior that is mediated by several mediators, notably substance P, glutamate, DA and NO.
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Talbot S, De Brito Gariépy H, Saint-Denis J, Couture R. Activation of kinin B1 receptor evokes hyperthermia through a vagal sensory mechanism in the rat. J Neuroinflammation 2012; 9:214. [PMID: 22971439 PMCID: PMC3460782 DOI: 10.1186/1742-2094-9-214] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 08/27/2012] [Indexed: 12/25/2022] Open
Abstract
Background Kinins are mediators of pain and inflammation. Their role in thermoregulation is, however, unknown despite the fact the B1 receptor (B1R) was found implicated in lipopolysaccharide (LPS)-induced fever. The aim of this study was to investigate the mechanism by which peripheral B1R affects body core temperature in a rat model known to show up-regulated levels of B1R. Methods Male Sprague–Dawley rats received streptozotocin (STZ, 65 mg/kg; i.p.) to enhance B1R expression. Control rats received the vehicle only. One week later, rectal temperature was measured in awake rats after i.p. injection of increasing doses (0.01 to 5 mg/kg) of des-Arg9-Bradykinin (BK) and Sar-[D-Phe8]des-Arg9-BK (B1R agonists) or BK (B2R agonist). The mechanism of B1R-induced hyperthermia was addressed using specific inhibitors and in rats subjected to subdiaphragmatic vagal nerve ligation. B1R mRNA level was measured by quantitative Real Time-polymerase chain reaction (qRT-PCR) and B1R was localized by confocal microscopy. Results B1R agonists (0.1 to 5 mg/kg) showed transient (5- to 30-minute) and dose-dependent increases of rectal temperature (+1.5°C) in STZ-treated rats, but not in control rats. BK caused no effect in STZ and control rats. In STZ-treated rats, B1R agonist-induced hyperthermia was blocked by antagonists/inhibitors of B1R (SSR240612), cyclooxygenase-2 (COX-2) (niflumic acid) and nitric oxide synthase (NOS) (L-NAME), and after vagal nerve ligation. In contrast, COX-1 inhibition (indomethacin) had no effect on B1R agonist-induced hyperthermia. In STZ-treated rats, B1R mRNA was significantly increased in the hypothalamus and the vagus nerve where it was co-localized with calcitonin-gene-related peptide in sensory C-fibers. Conclusion B1R, which is induced in inflammatory diseases, could contribute to hyperthermia through a vagal sensory mechanism involving prostaglandins (via COX-2) and nitric oxide.
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Affiliation(s)
- Sébastien Talbot
- Department of Physiology, Faculty of Medicine, Université de Montréal, Montréal, QC H3C 3J7, Canada
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18
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Emerging role of microglial kinin B1 receptor in diabetic pain neuropathy. Exp Neurol 2012; 234:373-81. [DOI: 10.1016/j.expneurol.2011.11.032] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 11/01/2011] [Accepted: 11/22/2011] [Indexed: 12/28/2022]
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Talbot S, Dias JP, Lahjouji K, Bogo MR, Campos MM, Gaudreau P, Couture R. Activation of TRPV1 by capsaicin induces functional kinin B(1) receptor in rat spinal cord microglia. J Neuroinflammation 2012; 9:16. [PMID: 22264228 PMCID: PMC3282640 DOI: 10.1186/1742-2094-9-16] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Accepted: 01/20/2012] [Indexed: 12/15/2022] Open
Abstract
Background The kinin B1 receptor (B1R) is upregulated by pro-inflammatory cytokines and oxydative stress, which are enhanced by transient receptor potential vanilloid subtype 1 (TRPV1) activation. To examine the link between TRPV1 and B1R in inflammatory pain, this study aimed to determine the ability of TRPV1 to regulate microglial B1R expression in the spinal cord dorsal horn, and the underlying mechanism. Methods B1R expression (mRNA, protein and binding sites) was measured in cervical, thoracic and lumbar spinal cord in response to TRPV1 activation by systemic capsaicin (1-50 mg/kg, s.c) in rats pre-treated with TRPV1 antagonists (capsazepine or SB-366791), the antioxidant N-acetyl-L-cysteine (NAC), or vehicle. B1R function was assessed using a tail-flick test after intrathecal (i.t.) injection of a selective B1R agonist (des-Arg9-BK), and its microglial localization was investigated by confocal microscopy with the selective fluorescent B1R agonist, [Nα-bodipy]-des-Arg9-BK. The effect of i.t. capsaicin (1 μg/site) was also investigated. Results Capsaicin (10 to 50 mg/kg, s.c.) enhanced time-dependently (0-24h) B1R mRNA levels in the lumbar spinal cord; this effect was prevented by capsazepine (10 mg/kg, i.p.; 10 μg/site, i.t.) and SB-366791 (1 mg/kg, i.p.; 30 μg/site, i.t.). Increases of B1R mRNA were correlated with IL-1β mRNA levels, and they were significantly less in cervical and thoracic spinal cord. Intrathecal capsaicin (1 μg/site) also enhanced B1R mRNA in lumbar spinal cord. NAC (1 g/kg/d × 7 days) prevented B1R up-regulation, superoxide anion production and NF-kB activation induced by capsaicin (15 mg/kg). Des-Arg9-BK (9.6 nmol/site, i.t.) decreased by 25-30% the nociceptive threshold at 1 min post-injection in capsaicin-treated rats (10-50 mg/kg) while it was without effect in control rats. Des-Arg9-BK-induced thermal hyperalgesia was blocked by capsazepine, SB-366791 and by antagonists/inhibitors of B1R (SSR240612, 10 mg/kg, p.o.), glutamate NMDA receptor (DL-AP5, 10 μg/site, i.t.), substance P NK-1 receptor (RP-67580, 10 μg/site, i.t.) and nitric oxide synthase (L-NNA, 10 μg/site, i.t.). The B1R fluorescent agonist was co-localized with an immunomarker of microglia (Iba-1) in spinal cord dorsal horn of capsaicin-treated rats. Conclusion This study highlights a new mechanism for B1R induction via TRPV1 activation and establishes a link between these two pro-nociceptive receptors in inflammatory pain.
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Affiliation(s)
- Sébastien Talbot
- Department of Physiology, Faculty of Medicine, Université de Montréal, C,P, 6128, Succursale Centre-ville, Montréal, H3C 3J7, Québec, Canada
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20
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Talbot S, Lin JCJ, Lahjouji K, Roy JP, Sénécal J, Morin A, Couture R. Cigarette smoke-induced kinin B1 receptor promotes NADPH oxidase activity in cultured human alveolar epithelial cells. Peptides 2011; 32:1447-56. [PMID: 21600945 DOI: 10.1016/j.peptides.2011.05.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 05/04/2011] [Accepted: 05/04/2011] [Indexed: 12/19/2022]
Abstract
Pulmonary inflammation is an important pathological feature of tobacco smoke-related lung diseases. Kinin B1 receptor (B1R) is up-regulated in the rat trachea chronically exposed to cigarette-smoke. This study aimed at determining (1) whether exposure to total particulate matter of the cigarette smoke (TPM) can induce B1R in human alveolar epithelial A549 cells, (2) the mechanism of B1R induction, (3) the functionality of de novo synthesized B1R, and (4) the role of B1R in TPM-induced increase of superoxide anion (O₂(●⁻)) level. Results show that A549 cells exposed to 10 μg/ml TPM increased O₂(●⁻) level along with B1R (protein and mRNA) and IL-1β mRNA. In contrast, B2R and TNF-α mRNA were not affected by TPM. The increasing effect of TPM on O₂(●⁻) level was not significantly affected by the B1R antagonist SSR240612. TPM-increased B1R mRNA was prevented by co-treatments with N-acetyl-l-cysteine (potent antioxidant), diphenyleneiodonium (NADPH oxidase inhibitor), IL-1Ra (interleukin-1R antagonist) and SN-50 (specific inhibitor of NF-kB activation) but not by pentoxifylline (TNF-α release inhibitor), indomethacin and niflumic acid (COX-1 and -2 inhibitors). Stimulation of B1R with a selective agonist (des-Arg⁹-BK, 10 μM; 30 min) increased O₂(●⁻)production which was prevented by apocynin and diphenyleneiodonium (NADPH oxidase inhibitors). Data suggest that the increased expression of B1R by TPM in A549 cells is mediated by oxidative stress, IL-1β and NF-kB but not by cyclooxygenases or TNF-α. The amplification of O₂(●⁻) levels via the activation of B1R-NADPH oxidase may exacerbate pulmonary inflammation and contribute to the chronicity of tobacco smoke-related lung diseases.
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Affiliation(s)
- Sébastien Talbot
- Department of Physiology, Faculty of Medicine, Université de Montréal, Montréal, QC H3C3J7, Canada
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21
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Lennertz RC, Medler KA, Bain JL, Wright DE, Stucky CL. Impaired sensory nerve function and axon morphology in mice with diabetic neuropathy. J Neurophysiol 2011; 106:905-14. [PMID: 21653724 DOI: 10.1152/jn.01123.2010] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Diabetes is the most prevalent metabolic disorder in the United States, and between 50% and 70% of diabetic patients suffer from diabetes-induced neuropathy. Yet our current knowledge of the functional changes in sensory nerves and their distal terminals caused by diabetes is limited. Here, we set out to investigate the functional and morphological consequences of diabetes on specific subtypes of cutaneous sensory nerves in mice. Diabetes was induced in C57Bl/6 mice by a single intraperitoneal injection of streptozotocin. After 6-8 wk, mice were characterized for behavioral sensitivity to mechanical and heat stimuli followed by analysis of sensory function using teased nerve fiber recordings and histological assessment of nerve fiber morphology. Diabetes produced severe functional impairment of C-fibers and rapidly adapting Aβ-fibers, leading to behavioral hyposensitivity to both mechanical and heat stimuli. Electron microscopy images showed that diabetic nerves have axoplasm with more concentrated organelles and frequent axon-myelin separations compared with control nerves. These changes were restricted to the distal nerve segments nearing their innervation territory. Furthermore, the relative proportion of Aβ-fibers was reduced in diabetic skin-nerve preparations compared with nondiabetic control mice. These data identify significant deficits in sensory nerve terminal function that are associated with distal fiber loss, morphological damage, and behavioral hyposensitivity in diabetic C57Bl/6 mice. These findings suggest that diabetes damages sensory nerves, leading to functional deficits in sensory signaling that underlie the loss of tactile acuity and pain sensation associated with insensate diabetic neuropathy.
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Affiliation(s)
- Richard C Lennertz
- Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee, WI 53226-0509, USA
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22
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Viana AF, Maciel IS, Dornelles FN, Figueiredo CP, Siqueira JM, Campos MM, Calixto JB. Kinin B1 receptors mediate depression-like behavior response in stressed mice treated with systemic E. coli lipopolysaccharide. J Neuroinflammation 2010; 7:98. [PMID: 21194425 PMCID: PMC3022820 DOI: 10.1186/1742-2094-7-98] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Accepted: 12/31/2010] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Kinin B1 receptors are inducible molecules up-regulated after inflammatory stimuli. This study evaluated the relevance of kinin B1 receptors in a mouse depression behavior model. METHODS Mice were exposed to a 5-min swimming session, and 30 min later they were injected with E. coli lipopolysaccharide (LPS). Depression-like behavior was assessed by determining immobility time in a tail suspension test. Different brain structures were collected for molecular and immunohistochemical studies. Anhedonia was assessed by means of a sucrose intake test. RESULTS Our protocol elicited an increase in depression-like behavior in CF1 mice, as assessed by the tail-suspension test, at 24 h. This behavior was significantly reduced by treatment with the selective B1 receptor antagonists R-715 and SSR240612. Administration of SSR240612 also prevented an increase in number of activated microglial cells in mouse hippocampus, but did not affect a reduction in expression of mRNA for brain-derived neurotrophic factor. The increased immobility time following LPS treatment was preceded by an enhancement of hippocampal and cortical B1 receptor mRNA expression (which were maximal at 1 h), and a marked production of TNFα in serum, brain and cerebrospinal fluid (between 1 and 6 h). The depression-like behavior was virtually abolished in TNFα p55 receptor-knockout mice, and increased B1 receptor mRNA expression was completely absent in this mouse strain. Furthermore, treatment with SSR240612 was also effective in preventing anhedonia in LPS-treated mice, as assessed using a sucrose preference test. CONCLUSION Our data show, for the first time, involvement of kinin B1 receptors in depressive behavioral responses, in a process likely associated with microglial activation and TNFα production. Thus, selective and orally active B1 receptor antagonists might well represent promising pharmacological tools for depression therapy.
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MESH Headings
- Animals
- Behavior, Animal/drug effects
- Behavior, Animal/physiology
- Brain/cytology
- Brain/metabolism
- Depression/physiopathology
- Humans
- Kinins
- Lipopolysaccharides/pharmacology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Microglia/cytology
- Microglia/metabolism
- Receptor, Bradykinin B1/genetics
- Receptor, Bradykinin B1/metabolism
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Stress, Psychological
- Tumor Necrosis Factor Decoy Receptors/genetics
- Tumor Necrosis Factor Decoy Receptors/metabolism
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- Alice F Viana
- Pharmacology Department, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Izaque S Maciel
- Faculty of Pharmacy, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Fabiana N Dornelles
- Pharmacology Department, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Claudia P Figueiredo
- Pharmacology Department, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Jarbas M Siqueira
- Pharmacology Department, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Maria M Campos
- Faculty of Dentistry, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Institute of Toxicology, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - João B Calixto
- Pharmacology Department, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
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Fuchs D, Birklein F, Reeh PW, Sauer SK. Sensitized peripheral nociception in experimental diabetes of the rat. Pain 2010; 151:496-505. [PMID: 20832942 DOI: 10.1016/j.pain.2010.08.010] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Revised: 07/07/2010] [Accepted: 08/07/2010] [Indexed: 12/13/2022]
Abstract
Painful neuropathy is a common complication of diabetes. Particularly in the early stage of diabetic neuropathy, patients are characterized by burning feet, hyperalgesia to heat, and mechanical stimuli, as if residual nociceptors were sensitized. Such symptoms are barely explained by common pathophysiological concepts of diabetic neuropathy. Diabetes was induced in Wistar rats by streptozotocin (STZ). After 4 weeks behavioral testing (Plantar test, Randall-Selitto) was conducted. Basal and stimulated release of calcitonin gene-related peptide (CGRP), Substance P (SP) and prostaglandin E(2) (PGE(2)) from isolated skin and sciatic nerve were assessed by enzyme immunoassays. Electrophysiological properties of identified nociceptors under hyperglycemic, hypoxic, and acidotic conditions were investigated using the skin-nerve preparation. The diabetic rats showed hyperalgesia to heat and pressure stimulation. The basal CGRP/SP release was reduced, but chemical stimulation with bradykinin induced greater release of SP, CGRP and PGE(2) than in control animals. In contrast, capsaicin-stimulated CGRP release was reduced in sciatic nerves. Hypoxia per se lowered von Frey thresholds of most C-nociceptors to half. Hyperglycemic hypoxia induced ongoing discharge in all diabetic but not control C-fibers which was further enhanced under acidosis. Sensory and neurosecretory nociceptor functions are sensitized in diabetes. Diabetic C-fibers show exaggerated sensitivity to hyperglycemic hypoxia with and without additional acidosis, conditions that are thought to mimic ischemic episodes in diabetic nerves. Ongoing C-fiber discharge is known to induce spinal sensitization. Together with altered receptor and ion channel expressions this may contribute to painful episodes in diabetic neuropathy.
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Affiliation(s)
- D Fuchs
- Department of Physiology & Pathophysiology, University of Erlangen/Nürnberg, Universitätsstr. 17, D-91054 Erlangen, Germany Department of Neurology, University Medical Centre Mainz, Langenbeckstr. 1, 55131 Mainz, Germany
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Talbot S, Chahmi E, Dias JP, Couture R. Key role for spinal dorsal horn microglial kinin B1 receptor in early diabetic pain neuropathy. J Neuroinflammation 2010; 7:36. [PMID: 20587056 PMCID: PMC2913947 DOI: 10.1186/1742-2094-7-36] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Accepted: 06/29/2010] [Indexed: 12/30/2022] Open
Abstract
Background The pro-nociceptive kinin B1 receptor (B1R) is upregulated on sensory C-fibres, astrocytes and microglia in the spinal cord of streptozotocin (STZ)-diabetic rat. This study aims at defining the role of microglial kinin B1R in diabetic pain neuropathy. Methods Sprague-Dawley rats were made diabetic with STZ (65 mg/kg, i.p.), and 4 days later, two specific inhibitors of microglial cells (fluorocitrate, 1 nmol, i.t.; minocycline, 10 mg/kg, i.p.) were administered to assess the impact on thermal hyperalgesia, allodynia and mRNA expression (qRT-PCR) of B1R and pro-inflammatory markers. Spinal B1R binding sites ((125I)-HPP-desArg10-Hoe 140) were also measured by quantitative autoradiography. Inhibition of microglia was confirmed by confocal microscopy with the specific marker Iba-1. Effects of intrathecal and/or systemic administration of B1R agonist (des-Arg9-BK) and antagonists (SSR240612 and R-715) were measured on neuropathic pain manifestations. Results STZ-diabetic rats displayed significant tactile and cold allodynia compared with control rats. Intrathecal or peripheral blockade of B1R or inhibition of microglia reversed time-dependently tactile and cold allodynia in diabetic rats without affecting basal values in control rats. Microglia inhibition also abolished thermal hyperalgesia and the enhanced allodynia induced by intrathecal des-Arg9-BK without affecting hyperglycemia in STZ rats. The enhanced mRNA expression (B1R, IL-1β, TNF-α, TRPV1) and Iba-1 immunoreactivity in the STZ spinal cord were normalized by fluorocitrate or minocycline, yet B1R binding sites were reduced by 38%. Conclusion The upregulation of kinin B1R in spinal dorsal horn microglia by pro-inflammatory cytokines is proposed as a crucial mechanism in early pain neuropathy in STZ-diabetic rats.
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Affiliation(s)
- Sébastien Talbot
- Department of Physiology, Faculty of Medicine, Université de Montréal, C,P, 6128, Succursale Downtown, Montréal, Québec, H3C 3J7, Canada
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