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Bradykinin receptor

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https://www.readbyqxmd.com/read/28076504/the-role-of-bradykinin-in-lung-ischemia-reperfusion-injury-in-a-rat-lung-transplantation-model
#1
Zheng Tang, Zhiwei Wang, Zhipeng Hu, Min Zhang, Luocheng Li, Bowen Li
PURPOSE: To investigate the role of bradykinin in a rat lung transplantation (LTx) model and preliminarily discuss the relationship between bradykinin and CD26/DPP-4. METHODS: Rats were randomly divided into four groups: Control (CON), Sham, low potassium dextranglucose (LPD), and AB192 (n=15/group). Orthotopic single LTx was performed in the LPD and AB192 groups. The donor lungs were flush-perfused and preserved with low potassium dextranglucose (LPD) or LPD+CD26/DPP-4 catalytic inhibitor (AB192)...
December 2016: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28069442/novel-signaling-of-dynorphin-at-%C3%AE%C2%BA-opioid-receptor-bradykinin-b2-receptor-heterodimers
#2
Bingyuan Ji, Haiqing Liu, Rumin Zhang, Yunlu Jiang, Chunmei Wang, Sheng Li, Jing Chen, Bo Bai
The κ-opioid receptor (KOR) and bradykinin B2 receptor (B2R) are involved in a variety of important physiological processes and share many similar characteristics in terms of their distribution and functions in the nervous system. We first demonstrated the endogenous expression of KOR and B2R in human SH-SY5Y cells and their co-localization on the membrane of human embryonic kidney 293 (HEK293) cells. Bioluminescence and fluorescence resonance energy transfer and the proximity ligation assay were exploited to demonstrate the formation of functional KOR and B2R heteromers in transfected cells...
January 7, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28049018/transactivation-of-the-epidermal-growth-factor-receptor-in-responses-to-myocardial-stress-and-cardioprotection
#3
REVIEW
Melissa E Reichelt, Shannon O'Brien, Walter G Thomas, John P Headrick
The epidermal growth factor receptor (EGFR) family comprises the ErbB1 (EGFR) and ErbB4 receptors as well as the 'co-receptors' ErbB2 (which does not bind EGF ligands) and ErbB3 (which lack tyrosine kinase activity). This family of receptors is essential for cardiac development, myocardial, renal and vascular function, and cardiac responses to physiological and pathological perturbations. The EGFR appears critical in protecting cardiac cells from injury, while considerable attention has focussed on neuregulin/ErbB4 signalling in potentially ameliorating cardiomyopathy/heart failure...
December 31, 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28041976/moving-pieces-in-a-cryptomic-puzzle-cryptide-from-tityus-serrulatus-ts3-nav-toxin-as-potential-agonist-of-muscarinic-receptors
#4
Cibele Rocha-Resende, Nádia Miricéia Leão, Maria Elena de Lima, Robson Augusto Santos, Adriano Monteiro de Castro Pimenta, Thiago Verano-Braga
Cryptome is as a subset of a given proteome containing bioactive cryptides embedded in larger peptides or proteins. We pinpointed a striking sequence similarity between two peptides from the Tityus serrulatus venom: Ts10 (KKDGYPVEYDRAY) and the N-terminal of Ts3 (KKDGYPVEYDNCAY). Ts3 (former Tityustoxin or TsIV) is an α-neurotoxin acting on voltage-gated sodium channels while Ts10 (former Peptide T) is a bradykinin-potentiating peptide and was originally reported as inhibitor of the angiotensin-converting enzyme (ACEi)...
December 29, 2016: Peptides
https://www.readbyqxmd.com/read/28032657/human-salivary-gland-cells-express-bradykinin-receptors-that-modulate-the-expression-of-proinflammatory-cytokines
#5
Keimin Lee, Yoon-Jung Kim, La-Mee Choi, Seulki Choi, Hyun Nam, Hui-Yeon Ko, Gehoon Chung, Jong-Ho Lee, Su-Hyun Jo, Gene Lee, Se-Young Choi, Kyungpyo Park
Bradykinin is an important peptide modulator that affects the function of neurons and immune cells. However, there is no evidence of the bradykinin receptors and their functions in human salivary glands. Here we have identified and characterized bradykinin receptors on human submandibular gland cells. Both bradykinin B1 and B2 receptors are expressed on human submandibular gland cells, A253 cells, and HSG cells. Bradykinin increased the intracellular Ca(2+) concentration ([Ca(2+) ]i ) in a concentration-dependent manner...
December 29, 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/27988430/kinin-receptors-key-regulators-of-autoimmunity
#6
REVIEW
Rafael Cypriano Dutra
The central function of the immune system is to protect the host from environmental agents such as microbes or chemicals, thereby preserving the integrity of the body, and preventing the onset of illness and infection. Moreover, the immune system is constantly challenged to discriminate self vs. non-self and mediate the correct response, a phenomenon called self-tolerance. The failure of mechanisms responsible for self-tolerance and induction of an immune response against components of the self, induces autoimmunity and culminates however, in several autoimmune diseases...
December 15, 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/27977181/an-orally-active-bradykinin-b1-receptor-antagonist-engineered-as-a-bifunctional-chimera-of-sunflower-trypsin-inhibitor
#7
Yibo Qiu, Misako Taichi, Na Wei, Huan Yang, Kathy Qian Luo, James P Tam
An orally active and metabolically stable peptide TIBA was successfully engineered as a chimera by fusing an analgesic bradykinin receptor antagonist peptide and the trypsin inhibitory loop of sunflower trypsin inhibitor-1. As a fusion cyclic peptide, the metabolically labile analgesic peptide is protected from degradation by exopeptidases as well as the endopeptidases, and its serum half-life extended from <5 min to >6 h as a chimera. Moreover, the chimera TIBA was also found to be orally active in an animal pain model using a hot plate assay...
December 15, 2016: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27965959/a-novel-antithrombotic-mechanism-mediated-by-the-receptors-of-the-kallikrein-kinin-and-renin-angiotensin-systems
#8
REVIEW
Alvin H Schmaier
The contact activation (CAS) and kallikrein/kinin (KKS) systems regulate thrombosis risk in two ways. First, the CAS influences contact activation-induced factor XI activation and thrombin formation through the hemostatic cascade. Second, prekallikrein (PK) and bradykinin of the KKS regulate expression of three vessel wall G-protein-coupled receptors, the bradykinin B2 receptor (B2R), angiotensin receptor 2, and Mas to influence prostacyclin formation. The degree of intravascular prostacyclin formation inversely regulates intravascular thrombosis risk...
2016: Frontiers in Medicine
https://www.readbyqxmd.com/read/27936197/vascular-tone-regulation-induced-by-c-type-natriuretic-peptide-differences-in-endothelium-dependent-and-independent-mechanisms-involved-in-normotensive-and-spontaneously-hypertensive-rats
#9
Carolina Caniffi, Flavia M Cerniello, María N Gobetto, María L Sueiro, María A Costa, Cristina Arranz
Given that the role of C-type natriuretic peptide (CNP) in the regulation of vascular tone in hypertensive states is unclear, we hypothesized that impaired response of the nitric oxide system to CNP in spontaneously hypertensive rats (SHR) could affect vascular relaxation induced by the peptide in this model of hypertension, and that other endothelial systems or potassium channels opening could also be involved. We examined the effect of CNP on isolated SHR aortas, and the hindlimb vascular resistance (HVR) in response to CNP administration compared to normotensive rats...
2016: PloS One
https://www.readbyqxmd.com/read/27919002/inhibitory-effect-of-fentanyl-citrate-on-the-release-of-endothlin-1-induced-by-bradykinin-in-melanoma-cells
#10
Tsugunobu Andoh, Akira Shinohara, Yasushi Kuraishi
BACKGROUND: Our previous study showed that the μ-opioid receptor agonist fentanyl citrate inhibits endothelin-1-and bradykinin-mediated pain responses in mice orthotopically inoculated with melanoma cells. We also demonstrated that bradykinin induces endothelin-1 secretion in melanoma cells. However, the analgesic mechanisms of fentanyl citrate remain unclear. Thus, the present study was conducted to determine whether fentanyl citrate affects bradykinin-induced endothelin-1 secretion in B16-BL6 melanoma cells...
February 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27913306/effect-of-bradykinin-receptor-antagonism-on-ace-inhibitor-associated-angioedema
#11
Brittany T Straka, Claudia E Ramirez, James B Byrd, Elizabeth Stone, Alencia Woodard-Grice, Hui Nian, Chang Yu, Aleena Banerji, Nancy J Brown
BACKGROUND: The B2 receptor antagonist icatibant is approved for treatment of attacks of hereditary angioedema. Icatibant has been reported to decrease time-to-resolution of angiotensin-converting enzyme (ACE) inhibitor-associated angioedema in 1 study of European patients. OBJECTIVE: We sought to test the hypothesis that a bradykinin B2 receptor antagonist would shorten time-to-resolution from ACE inhibitor-associated angioedema. METHODS: Patients with ACE inhibitor-associated angioedema (defined as swelling of lips, tongue, pharynx, or face during ACE inhibitor use and no swelling in the absence of ACE inhibitor use) were enrolled at Vanderbilt University Medical Center from October 2007 through September 2015 and at Massachusetts General Hospital in 2012...
November 29, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27908753/synthesis-and-evaluation-of-a-68-ga-labeled-bradykinin-b1-receptor-agonist-for-imaging-with-positron-emission-tomography
#12
Guillaume Amouroux, Zhengxing Zhang, Jinhe Pan, Silvia Jenni, Chengcheng Zhang, Navjit Hundal-Jabal, Nadine Colpo, Jutta Zeisler, Kuo-Shyan Lin, François Bénard
A novel (68)Ga-labeled bradykinin B1 receptor (B1R) agonist, (68)Ga-Z01115, was synthesized and evaluated for imaging with positron emission tomography (PET). Z01115 exhibited good binding affinity (Ki=25.4±5.1nM) to hB1R. (68)Ga-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. (68)Ga-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)...
January 15, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27886906/the-angiotensin-converting-enzyme-induced-angioedema
#13
REVIEW
Murat Bas
The bradykinin B2 receptor antagonist icatibant is effective in angiotensin-converting enzyme inhibitor-induced angioedema. The drug is not approved officially for this indication and has to be administered in an emergency situation off-label. Corticosteroids or antihistamines do not seem to work in this condition. The effectiveness of C1-esterase-inhibitor in angiotensin-converting enzyme-induced angioedema must be verified in a double-blind study.
February 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/27881962/cigarette-smoking-induced-cardiac-hypertrophy-vascular-inflammation-and-injury-are-attenuated-by-antioxidant-supplementation-in-an-animal-model
#14
Moustafa Al Hariri, Kazem Zibara, Wissam Farhat, Yasmine Hashem, Nadia Soudani, Farah Al Ibrahim, Eva Hamade, Asad Zeidan, Ahmad Husari, Firas Kobeissy
Background: Cardiovascular diseases are the leading causes of morbidity and mortality worldwide. Cigarette smoking remains a global health epidemic with associated detrimental effects on the cardiovascular system. In this work, we investigated the effects of cigarette smoke exposure on cardiovascular system in an animal model. The study then evaluated the effects of antioxidants (AO), represented by pomegranate juice, on cigarette smoke induced cardiovascular injury. This study aims at evaluating the effect of pomegranate juice supplementation on the cardiovascular system of an experimental rat model of smoke exposure...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27852128/antagonistic-effects-of-gingko-biloba-and-sophora-japonica-on-cerebral-vasoconstriction-in-response-to-histamine-5-hydroxytryptamine-u46619-and-bradykinin
#15
Ha Thi Thanh Nguyen, Hai Thanh Nguyen, Md Zahorul Islam, Takeshi Obi, Pitchaya Pothinuch, Thanh Van Nguyen, Tuong Manh Nguyen, Cuong Van Dao, Mitsuya Shiraishi, Atsushi Miyamoto
The aim of this study was to evaluate, for the first time, the antagonistic effects of Gingko biloba leaf (GB) and Sophora japonica L. flower bud (SJ) extracts on cerebral vasoconstriction in response to KCl, extracellular Ca[Formula: see text], histamine, 5-hydroxytryptamine (5-HT), 9,11-dideoxy-9[Formula: see text],11[Formula: see text]-methanoepoxy prostaglandin (PG) F[Formula: see text](U46619) and bradykinin (BK), in order to explain their traditional application for diseases associated with cerebral vasospasm...
2016: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/27844290/potentiation-of-paclitaxel-induced-pain-syndrome-in-mice-by-angiotensin-i-converting-enzyme-inhibition-and-involvement-of-kinins
#16
Indiara Brusco, Cássia Regina Silva, Gabriela Trevisan, Camila de Campos Velho Gewehr, Flávia Karine Rigo, Lidia La Rocca Tamiozzo, Mateus Fortes Rossato, Raquel Tonello, Gerusa Duarte Dalmolin, Daniela de Almeida Cabrini, Marcus Vinícius Gomez, Juliano Ferreira, Sara Marchesan Oliveira
Paclitaxel is a chemotherapeutic agent used to treat solid tumours. However, it causes an acute and neuropathic pain syndrome that limits its use. Among the mechanisms involved in neuropathic pain caused by paclitaxel is activation of kinin receptors. Angiotensin converting enzyme (ACE) inhibitors can enhance kinin receptor signalling. The goal of this study was to evaluate the role of kinins on paclitaxel-associated acute pain syndromes (P-APS) and the effect of ACE inhibition on P-APS and paclitaxel-associated chronic peripheral neuropathy (P-CPN) in mice...
November 14, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27823962/the-transient-receptor-potential-ankyrin-1-mediates-mechanical-hyperalgesia-induced-by-the-activation-of-b1-receptor-in-mice
#17
Flavia Carla Meotti, Cláudia Pinto Figueiredo, Marianne Manjavachi, João B Calixto
The kinin receptor B1 and the transient receptor potential ankyrin 1 (TRPA1) work as initiators and gatekeepers of nociception and inflammation. This study reports that the nociceptive transmission induced by activation of B1 receptor is dependent on TRPA1 ion channel. The mechanical hyperalgesia was induced by intrathecal (i.t.) injection of B1 agonist des-Arginine(9)-bradykinin (DABK) or TRPA1 agonist cinnamaldehyde and was evaluated by the withdrawal response after von Frey Hair application in the hind paw...
November 4, 2016: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27818136/subcutaneous-icatibant-for-the-treatment-of-hereditary-angioedema-attacks-comparison-of-home-self-administration-with-administration-at-a-medical-facility
#18
Iris M Otani, William R Lumry, Shelley Hurwitz, Huamin Henry Li, Timothy J Craig, Niki S Holtzman, Matthew I Iandoli, Julie Tucker, Marc A Riedl, Bruce L Zuraw, Aleena Banerji
BACKGROUND: Hereditary angioedema (HAE) is a life-threatening disorder characterized by recurrent angioedema. Icatibant, a subcutaneous bradykinin-B2-receptor antagonist, is an effective on-demand therapy. Data outside the United States suggest that self-administration is tolerated and patient-preferred compared with administration by health care professionals at medical facilities (HCP-administration). OBJECTIVE: A prospective, multicenter study was conducted in the United States to compare icatibant self-administration and HCP-administration...
November 3, 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/27803793/sacubitril-valsartan-in-heart-failure-latest-evidence-and-place-in-therapy
#19
REVIEW
Edgardo Kaplinsky
Despite significant therapeutic advances, patients with chronic heart failure (HF) remain at high risk for HF progression and death. Sacubitril/valsartan (previously known as LCZ696) is a first-in-class medicine that contains a neprilysin (NEP) inhibitor (sacubitril) and an angiotensin II (Ang-II) receptor blocker (valsartan). NEP is an endopeptidase that metabolizes different vasoactive peptides including natriuretic peptides, bradykinin and Ang-II. In consequence, its inhibition increases mainly the levels of both, natriuretic peptides (promoting diuresis, natriuresis and vasodilatation) and Ang-II whose effects are blocked by the angiotensin receptor blocker, valsartan (reducing vasoconstriction and aldosterone release)...
November 2016: Therapeutic Advances in Chronic Disease
https://www.readbyqxmd.com/read/27802438/bradykinin-contributes-to-sympathetic-and-pressor-responses-evoked-by-activation-of-skeletal-muscle-afferents-p2x-in-heart-failure
#20
Jihong Xing, Jianhua Li
BACKGROUND/AIMS: Published data suggest that purinergic P2X receptors of muscle afferent nerves contribute to the enhanced sympathetic nervous activity (SNA) and blood pressure (BP) responses during static exercise in heart failure (HF). In this study, we examined engagement of bradykinin (BK) in regulating responses of SNA and BP evoked by P2X stimulation in rats with HF. We further examined cellular mechanisms responsible for BK. We hypothesized that BK potentiates P2X currents of muscle dorsal root ganglion (DRG) neurons, and this effect is greater in HF due to upregulation of BK kinin B2 and P2X3 receptor...
2016: Cellular Physiology and Biochemistry
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